aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorJody McIntyre <scjody@modernduck.com>2006-03-28 20:24:39 -0500
committerJody McIntyre <scjody@modernduck.com>2006-03-28 20:24:39 -0500
commitc0e4077c946104e5d8a62f835dcdca5c79c8af7d (patch)
treec1f458722f86690a6172bbac2dfef3241ba0ec7e /drivers
parent94c2d01a537daf51a9fcf229d7d2204c979355d9 (diff)
parentca9ba4471c1203bb6e759b76e83167fec54fe590 (diff)
Merge with git+ssh://master.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'drivers')
-rw-r--r--drivers/Kconfig2
-rw-r--r--drivers/Makefile1
-rw-r--r--drivers/atm/lanai.c2
-rw-r--r--drivers/base/memory.c8
-rw-r--r--drivers/block/DAC960.c24
-rw-r--r--drivers/block/Kconfig3
-rw-r--r--drivers/block/acsi_slm.c2
-rw-r--r--drivers/block/cciss.c12
-rw-r--r--drivers/block/cciss_scsi.c3
-rw-r--r--drivers/block/floppy.c9
-rw-r--r--drivers/block/paride/bpck6.c3
-rw-r--r--drivers/block/paride/pd.c3
-rw-r--r--drivers/block/paride/pg.c8
-rw-r--r--drivers/block/paride/pt.c8
-rw-r--r--drivers/block/umem.c5
-rw-r--r--drivers/char/Kconfig2
-rw-r--r--drivers/char/agp/nvidia-agp.c3
-rw-r--r--drivers/char/drm/drm_fops.c2
-rw-r--r--drivers/char/drm/i810_dma.c2
-rw-r--r--drivers/char/drm/i830_dma.c2
-rw-r--r--drivers/char/ipmi/ipmi_msghandler.c4
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c7
-rw-r--r--drivers/char/ipmi/ipmi_watchdog.c6
-rw-r--r--drivers/char/mem.c2
-rw-r--r--drivers/char/misc.c2
-rw-r--r--drivers/char/mxser.h2
-rw-r--r--drivers/char/synclink.c33
-rw-r--r--drivers/char/synclink_gt.c250
-rw-r--r--drivers/cpufreq/cpufreq.c61
-rw-r--r--drivers/cpufreq/cpufreq_conservative.c155
-rw-r--r--drivers/cpufreq/cpufreq_ondemand.c11
-rw-r--r--drivers/edac/edac_mc.c2
-rw-r--r--drivers/firmware/dcdbas.c19
-rw-r--r--drivers/i2c/chips/Kconfig18
-rw-r--r--drivers/i2c/chips/Makefile2
-rw-r--r--drivers/i2c/chips/rtc8564.c385
-rw-r--r--drivers/i2c/chips/rtc8564.h78
-rw-r--r--drivers/ide/ide-cd.c1
-rw-r--r--drivers/ide/ide-tape.c5
-rw-r--r--drivers/ide/pci/amd74xx.c8
-rw-r--r--drivers/ide/pci/generic.c3
-rw-r--r--drivers/ide/pci/sis5513.c2
-rw-r--r--drivers/input/input.c2
-rw-r--r--drivers/isdn/capi/capi.c8
-rw-r--r--drivers/isdn/capi/kcapi_proc.c2
-rw-r--r--drivers/macintosh/adb.c11
-rw-r--r--drivers/macintosh/adbhid.c3
-rw-r--r--drivers/macintosh/via-pmu.c2
-rw-r--r--drivers/macintosh/via-pmu68k.c7
-rw-r--r--drivers/macintosh/windfarm_core.c8
-rw-r--r--drivers/md/Kconfig26
-rw-r--r--drivers/md/dm-crypt.c11
-rw-r--r--drivers/md/dm-ioctl.c100
-rw-r--r--drivers/md/dm-linear.c8
-rw-r--r--drivers/md/dm-raid1.c29
-rw-r--r--drivers/md/dm-snap.c409
-rw-r--r--drivers/md/dm-stripe.c13
-rw-r--r--drivers/md/dm-table.c53
-rw-r--r--drivers/md/dm.c88
-rw-r--r--drivers/md/dm.h23
-rw-r--r--drivers/md/kcopyd.c28
-rw-r--r--drivers/md/md.c235
-rw-r--r--drivers/md/raid1.c27
-rw-r--r--drivers/md/raid5.c719
-rw-r--r--drivers/md/raid6main.c14
-rw-r--r--drivers/media/dvb/dvb-core/dvbdev.c2
-rw-r--r--drivers/media/video/videodev.c2
-rw-r--r--drivers/message/i2o/i2o_proc.c2
-rw-r--r--drivers/misc/ibmasm/heartbeat.c5
-rw-r--r--drivers/misc/ibmasm/ibmasmfs.c2
-rw-r--r--drivers/net/bonding/bond_main.c2
-rw-r--r--drivers/net/forcedeth.c3
-rw-r--r--drivers/net/ioc3-eth.c7
-rw-r--r--drivers/net/irda/nsc-ircc.c4
-rw-r--r--drivers/net/loopback.c2
-rw-r--r--drivers/net/ns83820.c6
-rw-r--r--drivers/net/sis900.c2
-rw-r--r--drivers/net/tulip/de4x5.c2
-rw-r--r--drivers/net/tulip/pnic2.c2
-rw-r--r--drivers/net/typhoon.c4
-rw-r--r--drivers/net/wan/wanxl.c4
-rw-r--r--drivers/net/wireless/orinoco.c2
-rw-r--r--drivers/net/wireless/prism54/isl_ioctl.c2
-rw-r--r--drivers/net/wireless/prism54/islpci_hotplug.c3
-rw-r--r--drivers/oprofile/cpu_buffer.c13
-rw-r--r--drivers/oprofile/oprofile_stats.c4
-rw-r--r--drivers/oprofile/oprofilefs.c6
-rw-r--r--drivers/parisc/led.c14
-rw-r--r--drivers/parisc/power.c6
-rw-r--r--drivers/parport/parport_pc.c31
-rw-r--r--drivers/pnp/card.c16
-rw-r--r--drivers/pnp/driver.c19
-rw-r--r--drivers/rtc/Kconfig165
-rw-r--r--drivers/rtc/Makefile21
-rw-r--r--drivers/rtc/class.c145
-rw-r--r--drivers/rtc/hctosys.c69
-rw-r--r--drivers/rtc/interface.c277
-rw-r--r--drivers/rtc/rtc-dev.c382
-rw-r--r--drivers/rtc/rtc-ds1672.c233
-rw-r--r--drivers/rtc/rtc-ep93xx.c162
-rw-r--r--drivers/rtc/rtc-lib.c101
-rw-r--r--drivers/rtc/rtc-m48t86.c209
-rw-r--r--drivers/rtc/rtc-pcf8563.c353
-rw-r--r--drivers/rtc/rtc-proc.c162
-rw-r--r--drivers/rtc/rtc-rs5c372.c294
-rw-r--r--drivers/rtc/rtc-sa1100.c388
-rw-r--r--drivers/rtc/rtc-sysfs.c124
-rw-r--r--drivers/rtc/rtc-test.c204
-rw-r--r--drivers/rtc/rtc-x1205.c (renamed from drivers/i2c/chips/x1205.c)453
-rw-r--r--drivers/scsi/3w-9xxx.c2
-rw-r--r--drivers/scsi/BusLogic.c10
-rw-r--r--drivers/scsi/a100u2w.c3
-rw-r--r--drivers/scsi/aacraid/aachba.c1
-rw-r--r--drivers/scsi/aacraid/linit.c5
-rw-r--r--drivers/scsi/atp870u.c3
-rw-r--r--drivers/scsi/dpt_i2o.c5
-rw-r--r--drivers/scsi/eata.c3
-rw-r--r--drivers/scsi/gdth.c16
-rw-r--r--drivers/scsi/initio.c3
-rw-r--r--drivers/scsi/ips.c5
-rw-r--r--drivers/scsi/megaraid.c7
-rw-r--r--drivers/scsi/nsp32.c3
-rw-r--r--drivers/scsi/osst.c5
-rw-r--r--drivers/scsi/ppa.c3
-rw-r--r--drivers/scsi/qla1280.c5
-rw-r--r--drivers/scsi/qlogicfc.c8
-rw-r--r--drivers/scsi/qlogicpti.c3
-rw-r--r--drivers/serial/8250.c2
-rw-r--r--drivers/serial/8250_au1x00.c2
-rw-r--r--drivers/serial/Kconfig16
-rw-r--r--drivers/serial/Makefile1
-rw-r--r--drivers/serial/amba-pl010.c160
-rw-r--r--drivers/serial/au1x00_uart.c1287
-rw-r--r--drivers/serial/serial_txx9.c2
-rw-r--r--drivers/serial/sunsu.c2
-rw-r--r--drivers/telephony/phonedev.c2
-rw-r--r--drivers/usb/core/file.c6
-rw-r--r--drivers/usb/core/notify.c65
-rw-r--r--drivers/usb/gadget/inode.c6
-rw-r--r--drivers/usb/host/ohci-s3c2410.c2
-rw-r--r--drivers/usb/net/zaurus.c2
-rw-r--r--drivers/video/Kconfig27
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/acornfb.c8
-rw-r--r--drivers/video/asiliantfb.c14
-rw-r--r--drivers/video/aty/aty128fb.c4
-rw-r--r--drivers/video/aty/atyfb_base.c16
-rw-r--r--drivers/video/aty/mach64_gx.c3
-rw-r--r--drivers/video/aty/radeon_base.c6
-rw-r--r--drivers/video/au1200fb.c3844
-rw-r--r--drivers/video/au1200fb.h572
-rw-r--r--drivers/video/chipsfb.c14
-rw-r--r--drivers/video/console/Kconfig24
-rw-r--r--drivers/video/console/fonts.c2
-rw-r--r--drivers/video/console/newport_con.c4
-rw-r--r--drivers/video/console/vgacon.c271
-rw-r--r--drivers/video/fbcmap.c4
-rw-r--r--drivers/video/fbmem.c31
-rw-r--r--drivers/video/fbmon.c6
-rw-r--r--drivers/video/fbsysfs.c4
-rw-r--r--drivers/video/geode/Kconfig17
-rw-r--r--drivers/video/geode/Makefile4
-rw-r--r--drivers/video/geode/display_gx.c156
-rw-r--r--drivers/video/geode/display_gx.h96
-rw-r--r--drivers/video/geode/gxfb_core.c423
-rw-r--r--drivers/video/geode/video_gx.c262
-rw-r--r--drivers/video/geode/video_gx.h47
-rw-r--r--drivers/video/i810/i810-i2c.c3
-rw-r--r--drivers/video/imsttfb.c32
-rw-r--r--drivers/video/macmodes.c2
-rw-r--r--drivers/video/matrox/matroxfb_g450.c2
-rw-r--r--drivers/video/matrox/matroxfb_maven.c78
-rw-r--r--drivers/video/modedb.c6
-rw-r--r--drivers/video/neofb.c8
-rw-r--r--drivers/video/nvidia/nv_accel.c12
-rw-r--r--drivers/video/nvidia/nv_i2c.c3
-rw-r--r--drivers/video/nvidia/nv_type.h1
-rw-r--r--drivers/video/nvidia/nvidia.c119
-rw-r--r--drivers/video/pmagb-b-fb.c2
-rw-r--r--drivers/video/radeonfb.c2
-rw-r--r--drivers/video/riva/fbdev.c2
-rw-r--r--drivers/video/savage/savagefb-i2c.c3
-rw-r--r--drivers/video/sis/init301.c11
-rw-r--r--drivers/video/sstfb.c11
-rw-r--r--drivers/video/virgefb.c3
185 files changed, 11497 insertions, 3203 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig
index bddf431bbb7..9f5c0da57c9 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -70,4 +70,6 @@ source "drivers/sn/Kconfig"
source "drivers/edac/Kconfig"
+source "drivers/rtc/Kconfig"
+
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 5c69b86db62..424955274e6 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_USB_GADGET) += usb/gadget/
obj-$(CONFIG_GAMEPORT) += input/gameport/
obj-$(CONFIG_INPUT) += input/
obj-$(CONFIG_I2O) += message/
+obj-$(CONFIG_RTC_LIB) += rtc/
obj-$(CONFIG_I2C) += i2c/
obj-$(CONFIG_W1) += w1/
obj-$(CONFIG_HWMON) += hwmon/
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index 69f4c7ce9a6..cac09e353be 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -1972,7 +1972,7 @@ static int __devinit lanai_pci_start(struct lanai_dev *lanai)
"(itf %d): No suitable DMA available.\n", lanai->number);
return -EBUSY;
}
- if (pci_set_consistent_dma_mask(pci, 0xFFFFFFFF) != 0) {
+ if (pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) != 0) {
printk(KERN_WARNING DEV_LABEL
"(itf %d): No suitable DMA available.\n", lanai->number);
return -EBUSY;
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 105a0d61eb1..dd547af4681 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -47,16 +47,16 @@ static struct kset_uevent_ops memory_uevent_ops = {
.uevent = memory_uevent,
};
-static struct notifier_block *memory_chain;
+static BLOCKING_NOTIFIER_HEAD(memory_chain);
int register_memory_notifier(struct notifier_block *nb)
{
- return notifier_chain_register(&memory_chain, nb);
+ return blocking_notifier_chain_register(&memory_chain, nb);
}
void unregister_memory_notifier(struct notifier_block *nb)
{
- notifier_chain_unregister(&memory_chain, nb);
+ blocking_notifier_chain_unregister(&memory_chain, nb);
}
/*
@@ -140,7 +140,7 @@ static ssize_t show_mem_state(struct sys_device *dev, char *buf)
static inline int memory_notify(unsigned long val, void *v)
{
- return notifier_call_chain(&memory_chain, val, v);
+ return blocking_notifier_call_chain(&memory_chain, val, v);
}
/*
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 9bdea2a5cf0..45bcda54488 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -41,6 +41,7 @@
#include <linux/timer.h>
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/jiffies.h>
#include <linux/random.h>
#include <asm/io.h>
#include <asm/uaccess.h>
@@ -311,11 +312,10 @@ static boolean DAC960_CreateAuxiliaryStructures(DAC960_Controller_T *Controller)
CommandsRemaining = CommandAllocationGroupSize;
CommandGroupByteCount =
CommandsRemaining * CommandAllocationLength;
- AllocationPointer = kmalloc(CommandGroupByteCount, GFP_ATOMIC);
+ AllocationPointer = kzalloc(CommandGroupByteCount, GFP_ATOMIC);
if (AllocationPointer == NULL)
return DAC960_Failure(Controller,
"AUXILIARY STRUCTURE CREATION");
- memset(AllocationPointer, 0, CommandGroupByteCount);
}
Command = (DAC960_Command_T *) AllocationPointer;
AllocationPointer += CommandAllocationLength;
@@ -2709,14 +2709,12 @@ DAC960_DetectController(struct pci_dev *PCI_Device,
void __iomem *BaseAddress;
int i;
- Controller = (DAC960_Controller_T *)
- kmalloc(sizeof(DAC960_Controller_T), GFP_ATOMIC);
+ Controller = kzalloc(sizeof(DAC960_Controller_T), GFP_ATOMIC);
if (Controller == NULL) {
DAC960_Error("Unable to allocate Controller structure for "
"Controller at\n", NULL);
return NULL;
}
- memset(Controller, 0, sizeof(DAC960_Controller_T));
Controller->ControllerNumber = DAC960_ControllerCount;
DAC960_Controllers[DAC960_ControllerCount++] = Controller;
Controller->Bus = PCI_Device->bus->number;
@@ -3657,8 +3655,8 @@ static void DAC960_V1_ProcessCompletedCommand(DAC960_Command_T *Command)
(NewEnquiry->EventLogSequenceNumber !=
OldEnquiry->EventLogSequenceNumber) ||
Controller->MonitoringTimerCount == 0 ||
- (jiffies - Controller->SecondaryMonitoringTime
- >= DAC960_SecondaryMonitoringInterval))
+ time_after_eq(jiffies, Controller->SecondaryMonitoringTime
+ + DAC960_SecondaryMonitoringInterval))
{
Controller->V1.NeedLogicalDriveInformation = true;
Controller->V1.NewEventLogSequenceNumber =
@@ -5643,8 +5641,8 @@ static void DAC960_MonitoringTimerFunction(unsigned long TimerData)
unsigned int StatusChangeCounter =
Controller->V2.HealthStatusBuffer->StatusChangeCounter;
boolean ForceMonitoringCommand = false;
- if (jiffies - Controller->SecondaryMonitoringTime
- > DAC960_SecondaryMonitoringInterval)
+ if (time_after(jiffies, Controller->SecondaryMonitoringTime
+ + DAC960_SecondaryMonitoringInterval))
{
int LogicalDriveNumber;
for (LogicalDriveNumber = 0;
@@ -5672,8 +5670,8 @@ static void DAC960_MonitoringTimerFunction(unsigned long TimerData)
ControllerInfo->ConsistencyChecksActive +
ControllerInfo->RebuildsActive +
ControllerInfo->OnlineExpansionsActive == 0 ||
- jiffies - Controller->PrimaryMonitoringTime
- < DAC960_MonitoringTimerInterval) &&
+ time_before(jiffies, Controller->PrimaryMonitoringTime
+ + DAC960_MonitoringTimerInterval)) &&
!ForceMonitoringCommand)
{
Controller->MonitoringTimer.expires =
@@ -5810,8 +5808,8 @@ static void DAC960_Message(DAC960_MessageLevel_T MessageLevel,
Controller->ProgressBufferLength = Length;
if (Controller->EphemeralProgressMessage)
{
- if (jiffies - Controller->LastProgressReportTime
- >= DAC960_ProgressReportingInterval)
+ if (time_after_eq(jiffies, Controller->LastProgressReportTime
+ + DAC960_ProgressReportingInterval))
{
printk("%sDAC960#%d: %s", DAC960_MessageLevelMap[MessageLevel],
Controller->ControllerNumber, Buffer);
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 875ae769902..ae0949b3394 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -383,8 +383,9 @@ config BLK_DEV_RAM
thus say N here.
config BLK_DEV_RAM_COUNT
- int "Default number of RAM disks" if BLK_DEV_RAM
+ int "Default number of RAM disks"
default "16"
+ depends on BLK_DEV_RAM
help
The default value is 16 RAM disks. Change this if you know what
are doing. If you boot from a filesystem that needs to be extracted
diff --git a/drivers/block/acsi_slm.c b/drivers/block/acsi_slm.c
index a5c1c8e871e..4cb9c133628 100644
--- a/drivers/block/acsi_slm.c
+++ b/drivers/block/acsi_slm.c
@@ -369,8 +369,6 @@ static ssize_t slm_read( struct file *file, char *buf, size_t count,
int length;
int end;
- if (count < 0)
- return( -EINVAL );
if (!(page = __get_free_page( GFP_KERNEL )))
return( -ENOMEM );
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 71ec9e66438..1b0fd31c57c 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -996,13 +996,11 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
status = -EINVAL;
goto cleanup1;
}
- buff = (unsigned char **) kmalloc(MAXSGENTRIES *
- sizeof(char *), GFP_KERNEL);
+ buff = kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
if (!buff) {
status = -ENOMEM;
goto cleanup1;
}
- memset(buff, 0, MAXSGENTRIES);
buff_size = (int *) kmalloc(MAXSGENTRIES * sizeof(int),
GFP_KERNEL);
if (!buff_size) {
@@ -2729,9 +2727,9 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c, struct pci_dev *pdev,
return;
}
}
+default_int_mode:
#endif /* CONFIG_PCI_MSI */
/* if we get here we're going to use the default interrupt mode */
-default_int_mode:
c->intr[SIMPLE_MODE_INT] = pdev->irq;
return;
}
@@ -2940,13 +2938,12 @@ static void cciss_getgeometry(int cntl_num)
int block_size;
int total_size;
- ld_buff = kmalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
+ ld_buff = kzalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
if (ld_buff == NULL)
{
printk(KERN_ERR "cciss: out of memory\n");
return;
}
- memset(ld_buff, 0, sizeof(ReportLunData_struct));
size_buff = kmalloc(sizeof( ReadCapdata_struct), GFP_KERNEL);
if (size_buff == NULL)
{
@@ -3060,10 +3057,9 @@ static int alloc_cciss_hba(void)
for(i=0; i< MAX_CTLR; i++) {
if (!hba[i]) {
ctlr_info_t *p;
- p = kmalloc(sizeof(ctlr_info_t), GFP_KERNEL);
+ p = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL);
if (!p)
goto Enomem;
- memset(p, 0, sizeof(ctlr_info_t));
for (n = 0; n < NWD; n++)
p->gendisk[n] = disk[n];
hba[i] = p;
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index 0e66e904bd8..597c007fe81 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -1027,12 +1027,11 @@ cciss_update_non_disk_devices(int cntl_num, int hostno)
int i;
c = (ctlr_info_t *) hba[cntl_num];
- ld_buff = kmalloc(reportlunsize, GFP_KERNEL);
+ ld_buff = kzalloc(reportlunsize, GFP_KERNEL);
if (ld_buff == NULL) {
printk(KERN_ERR "cciss: out of memory\n");
return;
}
- memset(ld_buff, 0, reportlunsize);
inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
if (inq_buff == NULL) {
printk(KERN_ERR "cciss: out of memory\n");
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index d3ad9081697..bedb689b051 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -170,6 +170,7 @@ static int print_unex = 1;
#include <linux/mm.h>
#include <linux/bio.h>
#include <linux/string.h>
+#include <linux/jiffies.h>
#include <linux/fcntl.h>
#include <linux/delay.h>
#include <linux/mc146818rtc.h> /* CMOS defines */
@@ -747,7 +748,7 @@ static int disk_change(int drive)
{
int fdc = FDC(drive);
#ifdef FLOPPY_SANITY_CHECK
- if (jiffies - UDRS->select_date < UDP->select_delay)
+ if (time_before(jiffies, UDRS->select_date + UDP->select_delay))
DPRINT("WARNING disk change called early\n");
if (!(FDCS->dor & (0x10 << UNIT(drive))) ||
(FDCS->dor & 3) != UNIT(drive) || fdc != FDC(drive)) {
@@ -1075,7 +1076,7 @@ static int fd_wait_for_completion(unsigned long delay, timeout_fn function)
return 1;
}
- if ((signed)(jiffies - delay) < 0) {
+ if (time_before(jiffies, delay)) {
del_timer(&fd_timer);
fd_timer.function = function;
fd_timer.expires = delay;
@@ -1535,7 +1536,7 @@ static void setup_rw_floppy(void)
* again just before spinup completion. Beware that
* after scandrives, we must again wait for selection.
*/
- if ((signed)(ready_date - jiffies) > DP->select_delay) {
+ if (time_after(ready_date, jiffies + DP->select_delay)) {
ready_date -= DP->select_delay;
function = (timeout_fn) floppy_start;
} else
@@ -3823,7 +3824,7 @@ static int check_floppy_change(struct gendisk *disk)
if (UTESTF(FD_DISK_CHANGED) || UTESTF(FD_VERIFY))
return 1;
- if (UDP->checkfreq < (int)(jiffies - UDRS->last_checked)) {
+ if (time_after(jiffies, UDRS->last_checked + UDP->checkfreq)) {
if (floppy_grab_irq_and_dma()) {
return 1;
}
diff --git a/drivers/block/paride/bpck6.c b/drivers/block/paride/bpck6.c
index 08d858ad64d..41a237c5957 100644
--- a/drivers/block/paride/bpck6.c
+++ b/drivers/block/paride/bpck6.c
@@ -224,10 +224,9 @@ static void bpck6_log_adapter( PIA *pi, char * scratch, int verbose )
static int bpck6_init_proto(PIA *pi)
{
- Interface *p = kmalloc(sizeof(Interface), GFP_KERNEL);
+ Interface *p = kzalloc(sizeof(Interface), GFP_KERNEL);
if (p) {
- memset(p, 0, sizeof(Interface));
pi->private = (unsigned long)p;
return 0;
}
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 62d2464c12f..2403721f9db 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -151,6 +151,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_GEO, D_SBY, D_DLY, D_SLV};
#include <linux/cdrom.h> /* for the eject ioctl */
#include <linux/blkdev.h>
#include <linux/blkpg.h>
+#include <linux/kernel.h>
#include <asm/uaccess.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
@@ -275,7 +276,7 @@ static void pd_print_error(struct pd_unit *disk, char *msg, int status)
int i;
printk("%s: %s: status = 0x%x =", disk->name, msg, status);
- for (i = 0; i < 18; i++)
+ for (i = 0; i < ARRAY_SIZE(pd_errs); i++)
if (status & (1 << i))
printk(" %s", pd_errs[i]);
printk("\n");
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 6f5df0fad70..79b86825403 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -643,7 +643,8 @@ static ssize_t pg_read(struct file *filp, char __user *buf, size_t count, loff_t
static int __init pg_init(void)
{
- int unit, err = 0;
+ int unit;
+ int err;
if (disable){
err = -1;
@@ -657,16 +658,17 @@ static int __init pg_init(void)
goto out;
}
- if (register_chrdev(major, name, &pg_fops)) {
+ err = register_chrdev(major, name, &pg_fops);
+ if (err < 0) {
printk("pg_init: unable to get major number %d\n", major);
for (unit = 0; unit < PG_UNITS; unit++) {
struct pg *dev = &devices[unit];
if (dev->present)
pi_release(dev->pi);
}
- err = -1;
goto out;
}
+ major = err; /* In case the user specified `major=0' (dynamic) */
pg_class = class_create(THIS_MODULE, "pg");
if (IS_ERR(pg_class)) {
err = PTR_ERR(pg_class);
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 715ae5dc88f..d2013d36240 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -943,7 +943,8 @@ static ssize_t pt_write(struct file *filp, const char __user *buf, size_t count,
static int __init pt_init(void)
{
- int unit, err = 0;
+ int unit;
+ int err;
if (disable) {
err = -1;
@@ -955,14 +956,15 @@ static int __init pt_init(void)
goto out;
}
- if (register_chrdev(major, name, &pt_fops)) {
+ err = register_chrdev(major, name, &pt_fops);
+ if (err < 0) {
printk("pt_init: unable to get major number %d\n", major);
for (unit = 0; unit < PT_UNITS; unit++)
if (pt[unit].present)
pi_release(pt[unit].pi);
- err = -1;
goto out;
}
+ major = err;
pt_class = class_create(THIS_MODULE, "pt");
if (IS_ERR(pt_class)) {
err = PTR_ERR(pt_class);
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index c16e66b9c7a..f7d4c65a7b8 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -50,6 +50,7 @@
#include <linux/timer.h>
#include <linux/pci.h>
#include <linux/slab.h>
+#include <linux/dma-mapping.h>
#include <linux/fcntl.h> /* O_ACCMODE */
#include <linux/hdreg.h> /* HDIO_GETGEO */
@@ -881,8 +882,8 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i
printk(KERN_INFO "Micro Memory(tm) controller #%d found at %02x:%02x (PCI Mem Module (Battery Backup))\n",
card->card_number, dev->bus->number, dev->devfn);
- if (pci_set_dma_mask(dev, 0xffffffffffffffffLL) &&
- pci_set_dma_mask(dev, 0xffffffffLL)) {
+ if (pci_set_dma_mask(dev, DMA_64BIT_MASK) &&
+ pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "MM%d: NO suitable DMA found\n",num_cards);
return -ENOMEM;
}
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index facc3f1d9e3..73d30bf0158 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -696,7 +696,7 @@ config NVRAM
config RTC
tristate "Enhanced Real Time Clock Support"
- depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV
+ depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
index 70b8ed9cd17..4c67135c12d 100644
--- a/drivers/char/agp/nvidia-agp.c
+++ b/drivers/char/agp/nvidia-agp.c
@@ -11,6 +11,7 @@
#include <linux/gfp.h>
#include <linux/page-flags.h>
#include <linux/mm.h>
+#include <linux/jiffies.h>
#include "agp.h"
/* NVIDIA registers */
@@ -256,7 +257,7 @@ static void nvidia_tlbflush(struct agp_memory *mem)
do {
pci_read_config_dword(nvidia_private.dev_1,
NVIDIA_1_WBC, &wbc_reg);
- if ((signed)(end - jiffies) <= 0) {
+ if (time_before_eq(end, jiffies)) {
printk(KERN_ERR PFX
"TLB flush took more than 3 seconds.\n");
}
diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c
index 641f7633878..b7f7951c458 100644
--- a/drivers/char/drm/drm_fops.c
+++ b/drivers/char/drm/drm_fops.c
@@ -175,7 +175,7 @@ int drm_stub_open(struct inode *inode, struct file *filp)
drm_device_t *dev = NULL;
int minor = iminor(inode);
int err = -ENODEV;
- struct file_operations *old_fops;
+ const struct file_operations *old_fops;
DRM_DEBUG("\n");
diff --git a/drivers/char/drm/i810_dma.c b/drivers/char/drm/i810_dma.c
index ae0aa6d7e0b..c658dde3633 100644
--- a/drivers/char/drm/i810_dma.c
+++ b/drivers/char/drm/i810_dma.c
@@ -126,7 +126,7 @@ static int i810_map_buffer(drm_buf_t * buf, struct file *filp)
drm_device_t *dev = priv->head->dev;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_private_t *dev_priv = dev->dev_private;
- struct file_operations *old_fops;
+ const struct file_operations *old_fops;
int retcode = 0;
if (buf_priv->currently_mapped == I810_BUF_MAPPED)
diff --git a/drivers/char/drm/i830_dma.c b/drivers/char/drm/i830_dma.c
index 163f2cbfe60..b0f815d8cea 100644
--- a/drivers/char/drm/i830_dma.c
+++ b/drivers/char/drm/i830_dma.c
@@ -128,7 +128,7 @@ static int i830_map_buffer(drm_buf_t * buf, struct file *filp)
drm_device_t *dev = priv->head->dev;
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
drm_i830_private_t *dev_priv = dev->dev_private;
- struct file_operations *old_fops;
+ const struct file_operations *old_fops;
unsigned long virtual;
int retcode = 0;
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index b8fb87c6c29..40eb005b9d7 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -3744,7 +3744,7 @@ static int ipmi_init_msghandler(void)
ipmi_timer.expires = jiffies + IPMI_TIMEOUT_JIFFIES;
add_timer(&ipmi_timer);
- notifier_chain_register(&panic_notifier_list, &panic_block);
+ atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
initialized = 1;
@@ -3764,7 +3764,7 @@ static __exit void cleanup_ipmi(void)
if (!initialized)
return;
- notifier_chain_unregister(&panic_notifier_list, &panic_block);
+ atomic_notifier_chain_unregister(&panic_notifier_list, &panic_block);
/* This can't be called if any interfaces exist, so no worry about
shutting down the interfaces. */
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 12f858dc999..35fbd4d8ed4 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -237,10 +237,10 @@ struct smi_info
static int try_smi_init(struct smi_info *smi);
-static struct notifier_block *xaction_notifier_list;
+static ATOMIC_NOTIFIER_HEAD(xaction_notifier_list);
static int register_xaction_notifier(struct notifier_block * nb)
{
- return notifier_chain_register(&xaction_notifier_list, nb);
+ return atomic_notifier_chain_register(&xaction_notifier_list, nb);
}
static void si_restart_short_timer(struct smi_info *smi_info);
@@ -302,7 +302,8 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info)
do_gettimeofday(&t);
printk("**Start2: %d.%9.9d\n", t.tv_sec, t.tv_usec);
#endif
- err = notifier_call_chain(&xaction_notifier_list, 0, smi_info);
+ err = atomic_notifier_call_chain(&xaction_notifier_list,
+ 0, smi_info);
if (err & NOTIFY_STOP_MASK) {
rv = SI_SM_CALL_WITHOUT_DELAY;
goto out;
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 616539310d9..7ece9f3c8f7 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -1158,7 +1158,8 @@ static int __init ipmi_wdog_init(void)
}
register_reboot_notifier(&wdog_reboot_notifier);
- notifier_chain_register(&panic_notifier_list, &wdog_panic_notifier);
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &wdog_panic_notifier);
printk(KERN_INFO PFX "driver initialized\n");
@@ -1176,7 +1177,8 @@ static __exit void ipmi_unregister_watchdog(void)
release_nmi(&ipmi_nmi_handler);
#endif
- notifier_chain_unregister(&panic_notifier_list, &wdog_panic_notifier);
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &wdog_panic_notifier);
unregister_reboot_notifier(&wdog_reboot_notifier);
if (! watchdog_user)
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 5245ba1649e..66719f9d294 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -899,7 +899,7 @@ static const struct {
unsigned int minor;
char *name;
umode_t mode;
- struct file_operations *fops;
+ const struct file_operations *fops;
} devlist[] = { /* list of minor devices */
{1, "mem", S_IRUSR | S_IWUSR | S_IRGRP, &mem_fops},
{2, "kmem", S_IRUSR | S_IWUSR | S_IRGRP, &kmem_fops},
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 3e4c0414a01..96eb2a709e2 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -129,7 +129,7 @@ static int misc_open(struct inode * inode, struct file * file)
int minor = iminor(inode);
struct miscdevice *c;
int err = -ENODEV;
- struct file_operations *old_fops, *new_fops = NULL;
+ const struct file_operations *old_fops, *new_fops = NULL;
down(&misc_sem);
diff --git a/drivers/char/mxser.h b/drivers/char/mxser.h
index e7fd0b08e0b..7e188a4d602 100644
--- a/drivers/char/mxser.h
+++ b/drivers/char/mxser.h
@@ -118,7 +118,7 @@
// enable CTS interrupt
#define MOXA_MUST_IER_ECTSI 0x80
-// eanble RTS interrupt
+// enable RTS interrupt
#define MOXA_MUST_IER_ERTSI 0x40
// enable Xon/Xoff interrupt
#define MOXA_MUST_IER_XINT 0x20
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index d68be61f0a4..fee2aca3f6a 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -941,17 +941,6 @@ static void* mgsl_get_text_ptr(void)
return mgsl_get_text_ptr;
}
-/*
- * tmp_buf is used as a temporary buffer by mgsl_write. We need to
- * lock it in case the COPY_FROM_USER blocks while swapping in a page,
- * and some other program tries to do a serial write at the same time.
- * Since the lock will only come under contention when the system is
- * swapping and available memory is low, it makes sense to share one
- * buffer across all the serial ioports, since it significantly saves
- * memory if large numbers of serial ports are open.
- */
-static unsigned char *tmp_buf;
-
static inline int mgsl_paranoia_check(struct mgsl_struct *info,
char *name, const char *routine)
{
@@ -2150,7 +2139,7 @@ static int mgsl_write(struct tty_struct * tty,
if (mgsl_paranoia_check(info, tty->name, "mgsl_write"))
goto cleanup;
- if (!tty || !info->xmit_buf || !tmp_buf)
+ if (!tty || !info->xmit_buf)
goto cleanup;
if ( info->params.mode == MGSL_MODE_HDLC ||
@@ -3438,7 +3427,6 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
{
struct mgsl_struct *info;
int retval, line;
- unsigned long page;
unsigned long flags;
/* verify range of specified line number */
@@ -3472,18 +3460,6 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
goto cleanup;
}
- if (!tmp_buf) {
- page = get_zeroed_page(GFP_KERNEL);
- if (!page) {
- retval = -ENOMEM;
- goto cleanup;
- }
- if (tmp_buf)
- free_page(page);
- else
- tmp_buf = (unsigned char *) page;
- }
-
info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
spin_lock_irqsave(&info->netlock, flags);
@@ -4502,11 +4478,6 @@ static void synclink_cleanup(void)
kfree(tmp);
}
- if (tmp_buf) {
- free_page((unsigned long) tmp_buf);
- tmp_buf = NULL;
- }
-
if (pci_registered)
pci_unregister_driver(&synclink_pci_driver);
}
@@ -6025,7 +5996,7 @@ static void usc_set_async_mode( struct mgsl_struct *info )
* <15..8> ? RxFIFO IRQ Request Level
*
* Note: For async mode the receive FIFO level must be set
- * to 0 to aviod the situation where the FIFO contains fewer bytes
+ * to 0 to avoid the situation where the FIFO contains fewer bytes
* than the trigger level and no more data is expected.
*
* <7> 0 Exited Hunt IA (Interrupt Arm)
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 738ec2f4e56..b4d1f4eea43 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -1,5 +1,5 @@
/*
- * $Id: synclink_gt.c,v 4.22 2006/01/09 20:16:06 paulkf Exp $
+ * $Id: synclink_gt.c,v 4.25 2006/02/06 21:20:33 paulkf Exp $
*
* Device driver for Microgate SyncLink GT serial adapters.
*
@@ -92,7 +92,7 @@
* module identification
*/
static char *driver_name = "SyncLink GT";
-static char *driver_version = "$Revision: 4.22 $";
+static char *driver_version = "$Revision: 4.25 $";
static char *tty_driver_name = "synclink_gt";
static char *tty_dev_prefix = "ttySLG";
MODULE_LICENSE("GPL");
@@ -188,6 +188,20 @@ static void hdlcdev_exit(struct slgt_info *info);
#define SLGT_REG_SIZE 256
/*
+ * conditional wait facility
+ */
+struct cond_wait {
+ struct cond_wait *next;
+ wait_queue_head_t q;
+ wait_queue_t wait;
+ unsigned int data;
+};
+static void init_cond_wait(struct cond_wait *w, unsigned int data);
+static void add_cond_wait(struct cond_wait **head, struct cond_wait *w);
+static void remove_cond_wait(struct cond_wait **head, struct cond_wait *w);
+static void flush_cond_wait(struct cond_wait **head);
+
+/*
* DMA buffer descriptor and access macros
*/
struct slgt_desc
@@ -269,6 +283,9 @@ struct slgt_info {
struct timer_list tx_timer;
struct timer_list rx_timer;
+ unsigned int gpio_present;
+ struct cond_wait *gpio_wait_q;
+
spinlock_t lock; /* spinlock for synchronizing with ISR */
struct work_struct task;
@@ -379,6 +396,11 @@ static MGSL_PARAMS default_params = {
#define MASK_OVERRUN BIT4
#define GSR 0x00 /* global status */
+#define JCR 0x04 /* JTAG control */
+#define IODR 0x08 /* GPIO direction */
+#define IOER 0x0c /* GPIO interrupt enable */
+#define IOVR 0x10 /* GPIO value */
+#define IOSR 0x14 /* GPIO interrupt status */
#define TDR 0x80 /* tx data */
#define RDR 0x80 /* rx data */
#define TCR 0x82 /* tx control */
@@ -503,6 +525,9 @@ static int tiocmset(struct tty_struct *tty, struct file *file,
static void set_break(struct tty_struct *tty, int break_state);
static int get_interface(struct slgt_info *info, int __user *if_mode);
static int set_interface(struct slgt_info *info, int if_mode);
+static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
+static int get_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
+static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
/*
* driver functions
@@ -1112,6 +1137,12 @@ static int ioctl(struct tty_struct *tty, struct file *file,
return get_interface(info, argp);
case MGSL_IOCSIF:
return set_interface(info,(int)arg);
+ case MGSL_IOCSGPIO:
+ return set_gpio(info, argp);
+ case MGSL_IOCGGPIO:
+ return get_gpio(info, argp);
+ case MGSL_IOCWAITGPIO:
+ return wait_gpio(info, argp);
case TIOCGICOUNT:
spin_lock_irqsave(&info->lock,flags);
cnow = info->icount;
@@ -1762,10 +1793,6 @@ static void rx_async(struct slgt_info *info)
DBGDATA(info, p, count, "rx");
for(i=0 ; i < count; i+=2, p+=2) {
- if (tty && chars) {
- tty_flip_buffer_push(tty);
- chars = 0;
- }
ch = *p;
icount->rx++;
@@ -2158,6 +2185,24 @@ static void isr_txeom(struct slgt_info *info, unsigned short status)
}
}
+static void isr_gpio(struct slgt_info *info, unsigned int changed, unsigned int state)
+{
+ struct cond_wait *w, *prev;
+
+ /* wake processes waiting for specific transitions */
+ for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) {
+ if (w->data & changed) {
+ w->data = state;
+ wake_up_interruptible(&w->q);
+ if (prev != NULL)
+ prev->next = w->next;
+ else
+ info->gpio_wait_q = w->next;
+ } else
+ prev = w;
+ }
+}
+
/* interrupt service routine
*
* irq interrupt number
@@ -2193,6 +2238,22 @@ static irqreturn_t slgt_interrupt(int irq, void *dev_id, struct pt_regs * regs)
}
}
+ if (info->gpio_present) {
+ unsigned int state;
+ unsigned int changed;
+ while ((changed = rd_reg32(info, IOSR)) != 0) {
+ DBGISR(("%s iosr=%08x\n", info->device_name, changed));
+ /* read latched state of GPIO signals */
+ state = rd_reg32(info, IOVR);
+ /* clear pending GPIO interrupt bits */
+ wr_reg32(info, IOSR, changed);
+ for (i=0 ; i < info->port_count ; i++) {
+ if (info->port_array[i] != NULL)
+ isr_gpio(info->port_array[i], changed, state);
+ }
+ }
+ }
+
for(i=0; i < info->port_count ; i++) {
struct slgt_info *port = info->port_array[i];
@@ -2276,6 +2337,8 @@ static void shutdown(struct slgt_info *info)
set_signals(info);
}
+ flush_cond_wait(&info->gpio_wait_q);
+
spin_unlock_irqrestore(&info->lock,flags);
if (info->tty)
@@ -2650,6 +2713,175 @@ static int set_interface(struct slgt_info *info, int if_mode)
return 0;
}
+/*
+ * set general purpose IO pin state and direction
+ *
+ * user_gpio fields:
+ * state each bit indicates a pin state
+ * smask set bit indicates pin state to set
+ * dir each bit indicates a pin direction (0=input, 1=output)
+ * dmask set bit indicates pin direction to set
+ */
+static int set_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
+{
+ unsigned long flags;
+ struct gpio_desc gpio;
+ __u32 data;
+
+ if (!info->gpio_present)
+ return -EINVAL;
+ if (copy_from_user(&gpio, user_gpio, sizeof(gpio)))
+ return -EFAULT;
+ DBGINFO(("%s set_gpio state=%08x smask=%08x dir=%08x dmask=%08x\n",
+ info->device_name, gpio.state, gpio.smask,
+ gpio.dir, gpio.dmask));
+
+ spin_lock_irqsave(&info->lock,flags);
+ if (gpio.dmask) {
+ data = rd_reg32(info, IODR);
+ data |= gpio.dmask & gpio.dir;
+ data &= ~(gpio.dmask & ~gpio.dir);
+ wr_reg32(info, IODR, data);
+ }
+ if (gpio.smask) {
+ data = rd_reg32(info, IOVR);
+ data |= gpio.smask & gpio.state;
+ data &= ~(gpio.smask & ~gpio.state);
+ wr_reg32(info, IOVR, data);
+ }
+ spin_unlock_irqrestore(&info->lock,flags);
+
+ return 0;
+}
+
+/*
+ * get general purpose IO pin state and direction
+ */
+static int get_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
+{
+ struct gpio_desc gpio;
+ if (!info->gpio_present)
+ return -EINVAL;
+ gpio.state = rd_reg32(info, IOVR);
+ gpio.smask = 0xffffffff;
+ gpio.dir = rd_reg32(info, IODR);
+ gpio.dmask = 0xffffffff;
+ if (copy_to_user(user_gpio, &gpio, sizeof(gpio)))
+ return -EFAULT;
+ DBGINFO(("%s get_gpio state=%08x dir=%08x\n",
+ info->device_name, gpio.state, gpio.dir));
+ return 0;
+}
+
+/*
+ * conditional wait facility
+ */
+static void init_cond_wait(struct cond_wait *w, unsigned int data)
+{
+ init_waitqueue_head(&w->q);
+ init_waitqueue_entry(&w->wait, current);
+ w->data = data;
+}
+
+static void add_cond_wait(struct cond_wait **head, struct cond_wait *w)
+{
+ set_current_state(TASK_INTERRUPTIBLE);
+ add_wait_queue(&w->q, &w->wait);
+ w->next = *head;
+ *head = w;
+}
+
+static void remove_cond_wait(struct cond_wait **head, struct cond_wait *cw)
+{
+ struct cond_wait *w, *prev;
+ remove_wait_queue(&cw->q, &cw->wait);
+ set_current_state(TASK_RUNNING);
+ for (w = *head, prev = NULL ; w != NULL ; prev = w, w = w->next) {
+ if (w == cw) {
+ if (prev != NULL)
+ prev->next = w->next;
+ else
+ *head = w->next;
+ break;
+ }
+ }
+}
+
+static void flush_cond_wait(struct cond_wait **head)
+{
+ while (*head != NULL) {
+ wake_up_interruptible(&(*head)->q);
+ *head = (*head)->next;
+ }
+}
+
+/*
+ * wait for general purpose I/O pin(s) to enter specified state
+ *
+ * user_gpio fields:
+ * state - bit indicates target pin state
+ * smask - set bit indicates watched pin
+ *
+ * The wait ends when at least one watched pin enters the specified
+ * state. When 0 (no error) is returned, user_gpio->state is set to the
+ * state of all GPIO pins when the wait ends.
+ *
+ * Note: Each pin may be a dedicated input, dedicated output, or
+ * configurable input/output. The number and configuration of pins
+ * varies with the specific adapter model. Only input pins (dedicated
+ * or configured) can be monitored with this function.
+ */
+static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
+{
+ unsigned long flags;
+ int rc = 0;
+ struct gpio_desc gpio;
+ struct cond_wait wait;
+ u32 state;
+
+ if (!info->gpio_present)
+ return -EINVAL;
+ if (copy_from_user(&gpio, user_gpio, sizeof(gpio)))
+ return -EFAULT;
+ DBGINFO(("%s wait_gpio() state=%08x smask=%08x\n",
+ info->device_name, gpio.state, gpio.smask));
+ /* ignore output pins identified by set IODR bit */
+ if ((gpio.smask &= ~rd_reg32(info, IODR)) == 0)
+ return -EINVAL;
+ init_cond_wait(&wait, gpio.smask);
+
+ spin_lock_irqsave(&info->lock, flags);
+ /* enable interrupts for watched pins */
+ wr_reg32(info, IOER, rd_reg32(info, IOER) | gpio.smask);
+ /* get current pin states */
+ state = rd_reg32(info, IOVR);
+
+ if (gpio.smask & ~(state ^ gpio.state)) {
+ /* already in target state */
+ gpio.state = state;
+ } else {
+ /* wait for target state */
+ add_cond_wait(&info->gpio_wait_q, &wait);
+ spin_unlock_irqrestore(&info->lock, flags);
+ schedule();
+ if (signal_pending(current))
+ rc = -ERESTARTSYS;
+ else
+ gpio.state = wait.data;
+ spin_lock_irqsave(&info->lock, flags);
+ remove_cond_wait(&info->gpio_wait_q, &wait);
+ }
+
+ /* disable all GPIO interrupts if no waiting processes */
+ if (info->gpio_wait_q == NULL)
+ wr_reg32(info, IOER, 0);
+ spin_unlock_irqrestore(&info->lock,flags);
+
+ if ((rc == 0) && copy_to_user(user_gpio, &gpio, sizeof(gpio)))
+ rc = -EFAULT;
+ return rc;
+}
+
static int modem_input_wait(struct slgt_info *info,int arg)
{
unsigned long flags;
@@ -3166,8 +3398,10 @@ static void device_init(int adapter_num, struct pci_dev *pdev)
} else {
port_array[0]->irq_requested = 1;
adapter_test(port_array[0]);
- for (i=1 ; i < port_count ; i++)
+ for (i=1 ; i < port_count ; i++) {
port_array[i]->init_error = port_array[0]->init_error;
+ port_array[i]->gpio_present = port_array[0]->gpio_present;
+ }
}
}
}
@@ -4301,7 +4535,7 @@ static int register_test(struct slgt_info *info)
break;
}
}
-
+ info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0;
info->init_error = rc ? 0 : DiagStatus_AddressFailure;
return rc;
}
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index aed80e6aec6..9b6ae7dc8b8 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -52,9 +52,8 @@ static void handle_update(void *data);
* changes to devices when the CPU clock speed changes.
* The mutex locks both lists.
*/
-static struct notifier_block *cpufreq_policy_notifier_list;
-static struct notifier_block *cpufreq_transition_notifier_list;
-static DECLARE_RWSEM (cpufreq_notifier_rwsem);
+static BLOCKING_NOTIFIER_HEAD(cpufreq_policy_notifier_list);
+static BLOCKING_NOTIFIER_HEAD(cpufreq_transition_notifier_list);
static LIST_HEAD(cpufreq_governor_list);
@@ -247,8 +246,6 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
dprintk("notification %u of frequency transition to %u kHz\n",
state, freqs->new);
- down_read(&cpufreq_notifier_rwsem);
-
policy = cpufreq_cpu_data[freqs->cpu];
switch (state) {
@@ -266,20 +263,19 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
freqs->old = policy->cur;
}
}
- notifier_call_chain(&cpufreq_transition_notifier_list,
- CPUFREQ_PRECHANGE, freqs);
+ blocking_notifier_call_chain(&cpufreq_transition_notifier_list,
+ CPUFREQ_PRECHANGE, freqs);
adjust_jiffies(CPUFREQ_PRECHANGE, freqs);
break;
case CPUFREQ_POSTCHANGE:
adjust_jiffies(CPUFREQ_POSTCHANGE, freqs);
- notifier_call_chain(&cpufreq_transition_notifier_list,
- CPUFREQ_POSTCHANGE, freqs);
+ blocking_notifier_call_chain(&cpufreq_transition_notifier_list,
+ CPUFREQ_POSTCHANGE, freqs);
if (likely(policy) && likely(policy->cpu == freqs->cpu))
policy->cur = freqs->new;
break;
}
- up_read(&cpufreq_notifier_rwsem);
}
EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
@@ -1007,7 +1003,7 @@ static int cpufreq_suspend(struct sys_device * sysdev, pm_message_t pmsg)
freqs.old = cpu_policy->cur;
freqs.new = cur_freq;
- notifier_call_chain(&cpufreq_transition_notifier_list,
+ blocking_notifier_call_chain(&cpufreq_transition_notifier_list,
CPUFREQ_SUSPENDCHANGE, &freqs);
adjust_jiffies(CPUFREQ_SUSPENDCHANGE, &freqs);
@@ -1088,7 +1084,8 @@ static int cpufreq_resume(struct sys_device * sysdev)
freqs.old = cpu_policy->cur;
freqs.new = cur_freq;
- notifier_call_chain(&cpufreq_transition_notifier_list,
+ blocking_notifier_call_chain(
+ &cpufreq_transition_notifier_list,
CPUFREQ_RESUMECHANGE, &freqs);
adjust_jiffies(CPUFREQ_RESUMECHANGE, &freqs);
@@ -1125,24 +1122,24 @@ static struct sysdev_driver cpufreq_sysdev_driver = {
* changes in cpufreq policy.
*
* This function may sleep, and has the same return conditions as
- * notifier_chain_register.
+ * blocking_notifier_chain_register.
*/
int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list)
{
int ret;
- down_write(&cpufreq_notifier_rwsem);
switch (list) {
case CPUFREQ_TRANSITION_NOTIFIER:
- ret = notifier_chain_register(&cpufreq_transition_notifier_list, nb);
+ ret = blocking_notifier_chain_register(
+ &cpufreq_transition_notifier_list, nb);
break;
case CPUFREQ_POLICY_NOTIFIER:
- ret = notifier_chain_register(&cpufreq_policy_notifier_list, nb);
+ ret = blocking_notifier_chain_register(
+ &cpufreq_policy_notifier_list, nb);
break;
default:
ret = -EINVAL;
}
- up_write(&cpufreq_notifier_rwsem);
return ret;
}
@@ -1157,24 +1154,24 @@ EXPORT_SYMBOL(cpufreq_register_notifier);
* Remove a driver from the CPU frequency notifier list.
*
* This function may sleep, and has the same return conditions as
- * notifier_chain_unregister.
+ * blocking_notifier_chain_unregister.
*/
int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list)
{
int ret;
- down_write(&cpufreq_notifier_rwsem);
switch (list) {
case CPUFREQ_TRANSITION_NOTIFIER:
- ret = notifier_chain_unregister(&cpufreq_transition_notifier_list, nb);
+ ret = blocking_notifier_chain_unregister(
+ &cpufreq_transition_notifier_list, nb);
break;
case CPUFREQ_POLICY_NOTIFIER:
- ret = notifier_chain_unregister(&cpufreq_policy_notifier_list, nb);
+ ret = blocking_notifier_chain_unregister(
+ &cpufreq_policy_notifier_list, nb);
break;
default:
ret = -EINVAL;
}
- up_write(&cpufreq_notifier_rwsem);
return ret;
}
@@ -1346,29 +1343,23 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_poli
if (ret)
goto error_out;
- down_read(&cpufreq_notifier_rwsem);
-
/* adjust if necessary - all reasons */
- notifier_call_chain(&cpufreq_policy_notifier_list, CPUFREQ_ADJUST,
- policy);
+ blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
+ CPUFREQ_ADJUST, policy);
/* adjust if necessary - hardware incompatibility*/
- notifier_call_chain(&cpufreq_policy_notifier_list, CPUFREQ_INCOMPATIBLE,
- policy);
+ blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
+ CPUFREQ_INCOMPATIBLE, policy);
/* verify the cpu speed can be set within this limit,
which might be different to the first one */
ret = cpufreq_driver->verify(policy);
- if (ret) {
- up_read(&cpufreq_notifier_rwsem);
+ if (ret)
goto error_out;
- }
/* notification of the new policy */
- notifier_call_chain(&cpufreq_policy_notifier_list, CPUFREQ_NOTIFY,
- policy);
-
- up_read(&cpufreq_notifier_rwsem);
+ blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
+ CPUFREQ_NOTIFY, policy);
data->min = policy->min;
data->max = policy->max;
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index ac38766b258..037f6bf4543 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -35,12 +35,7 @@
*/
#define DEF_FREQUENCY_UP_THRESHOLD (80)
-#define MIN_FREQUENCY_UP_THRESHOLD (0)
-#define MAX_FREQUENCY_UP_THRESHOLD (100)
-
#define DEF_FREQUENCY_DOWN_THRESHOLD (20)
-#define MIN_FREQUENCY_DOWN_THRESHOLD (0)
-#define MAX_FREQUENCY_DOWN_THRESHOLD (100)
/*
* The polling frequency of this governor depends on the capability of
@@ -53,10 +48,14 @@
* All times here are in uS.
*/
static unsigned int def_sampling_rate;
-#define MIN_SAMPLING_RATE (def_sampling_rate / 2)
+#define MIN_SAMPLING_RATE_RATIO (2)
+/* for correct statistics, we need at least 10 ticks between each measure */
+#define MIN_STAT_SAMPLING_RATE (MIN_SAMPLING_RATE_RATIO * jiffies_to_usecs(10))
+#define MIN_SAMPLING_RATE (def_sampling_rate / MIN_SAMPLING_RATE_RATIO)
#define MAX_SAMPLING_RATE (500 * def_sampling_rate)
-#define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER (100000)
-#define DEF_SAMPLING_DOWN_FACTOR (5)
+#define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER (1000)
+#define DEF_SAMPLING_DOWN_FACTOR (1)
+#define MAX_SAMPLING_DOWN_FACTOR (10)
#define TRANSITION_LATENCY_LIMIT (10 * 1000)
static void do_dbs_timer(void *data);
@@ -66,6 +65,8 @@ struct cpu_dbs_info_s {
unsigned int prev_cpu_idle_up;
unsigned int prev_cpu_idle_down;
unsigned int enable;
+ unsigned int down_skip;
+ unsigned int requested_freq;
};
static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
@@ -87,6 +88,8 @@ static struct dbs_tuners dbs_tuners_ins = {
.up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
.down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD,
.sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
+ .ignore_nice = 0,
+ .freq_step = 5,
};
static inline unsigned int get_cpu_idle_time(unsigned int cpu)
@@ -136,7 +139,7 @@ static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
unsigned int input;
int ret;
ret = sscanf (buf, "%u", &input);
- if (ret != 1 )
+ if (ret != 1 || input > MAX_SAMPLING_DOWN_FACTOR || input < 1)
return -EINVAL;
mutex_lock(&dbs_mutex);
@@ -173,8 +176,7 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
ret = sscanf (buf, "%u", &input);
mutex_lock(&dbs_mutex);
- if (ret != 1 || input > MAX_FREQUENCY_UP_THRESHOLD ||
- input < MIN_FREQUENCY_UP_THRESHOLD ||
+ if (ret != 1 || input > 100 || input < 0 ||
input <= dbs_tuners_ins.down_threshold) {
mutex_unlock(&dbs_mutex);
return -EINVAL;
@@ -194,8 +196,7 @@ static ssize_t store_down_threshold(struct cpufreq_policy *unused,
ret = sscanf (buf, "%u", &input);
mutex_lock(&dbs_mutex);
- if (ret != 1 || input > MAX_FREQUENCY_DOWN_THRESHOLD ||
- input < MIN_FREQUENCY_DOWN_THRESHOLD ||
+ if (ret != 1 || input > 100 || input < 0 ||
input >= dbs_tuners_ins.up_threshold) {
mutex_unlock(&dbs_mutex);
return -EINVAL;
@@ -297,31 +298,17 @@ static struct attribute_group dbs_attr_group = {
static void dbs_check_cpu(int cpu)
{
unsigned int idle_ticks, up_idle_ticks, down_idle_ticks;
+ unsigned int tmp_idle_ticks, total_idle_ticks;
unsigned int freq_step;
unsigned int freq_down_sampling_rate;
- static int down_skip[NR_CPUS];
- static int requested_freq[NR_CPUS];
- static unsigned short init_flag = 0;
- struct cpu_dbs_info_s *this_dbs_info;
- struct cpu_dbs_info_s *dbs_info;
-
+ struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
struct cpufreq_policy *policy;
- unsigned int j;
- this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
if (!this_dbs_info->enable)
return;
policy = this_dbs_info->cur_policy;
- if ( init_flag == 0 ) {
- for_each_online_cpu(j) {
- dbs_info = &per_cpu(cpu_dbs_info, j);
- requested_freq[j] = dbs_info->cur_policy->cur;
- }
- init_flag = 1;
- }
-
/*
* The default safe range is 20% to 80%
* Every sampling_rate, we check
@@ -337,39 +324,29 @@ static void dbs_check_cpu(int cpu)
*/
/* Check for frequency increase */
-
idle_ticks = UINT_MAX;
- for_each_cpu_mask(j, policy->cpus) {
- unsigned int tmp_idle_ticks, total_idle_ticks;
- struct cpu_dbs_info_s *j_dbs_info;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
- /* Check for frequency increase */
- total_idle_ticks = get_cpu_idle_time(j);
- tmp_idle_ticks = total_idle_ticks -
- j_dbs_info->prev_cpu_idle_up;
- j_dbs_info->prev_cpu_idle_up = total_idle_ticks;
-
- if (tmp_idle_ticks < idle_ticks)
- idle_ticks = tmp_idle_ticks;
- }
+ /* Check for frequency increase */
+ total_idle_ticks = get_cpu_idle_time(cpu);
+ tmp_idle_ticks = total_idle_ticks -
+ this_dbs_info->prev_cpu_idle_up;
+ this_dbs_info->prev_cpu_idle_up = total_idle_ticks;
+
+ if (tmp_idle_ticks < idle_ticks)
+ idle_ticks = tmp_idle_ticks;
/* Scale idle ticks by 100 and compare with up and down ticks */
idle_ticks *= 100;
up_idle_ticks = (100 - dbs_tuners_ins.up_threshold) *
- usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
+ usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
if (idle_ticks < up_idle_ticks) {
- down_skip[cpu] = 0;
- for_each_cpu_mask(j, policy->cpus) {
- struct cpu_dbs_info_s *j_dbs_info;
+ this_dbs_info->down_skip = 0;
+ this_dbs_info->prev_cpu_idle_down =
+ this_dbs_info->prev_cpu_idle_up;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
- j_dbs_info->prev_cpu_idle_down =
- j_dbs_info->prev_cpu_idle_up;
- }
/* if we are already at full speed then break out early */
- if (requested_freq[cpu] == policy->max)
+ if (this_dbs_info->requested_freq == policy->max)
return;
freq_step = (dbs_tuners_ins.freq_step * policy->max) / 100;
@@ -378,49 +355,45 @@ static void dbs_check_cpu(int cpu)
if (unlikely(freq_step == 0))
freq_step = 5;
- requested_freq[cpu] += freq_step;
- if (requested_freq[cpu] > policy->max)
- requested_freq[cpu] = policy->max;
+ this_dbs_info->requested_freq += freq_step;
+ if (this_dbs_info->requested_freq > policy->max)
+ this_dbs_info->requested_freq = policy->max;
- __cpufreq_driver_target(policy, requested_freq[cpu],
+ __cpufreq_driver_target(policy, this_dbs_info->requested_freq,
CPUFREQ_RELATION_H);
return;
}
/* Check for frequency decrease */
- down_skip[cpu]++;
- if (down_skip[cpu] < dbs_tuners_ins.sampling_down_factor)
+ this_dbs_info->down_skip++;
+ if (this_dbs_info->down_skip < dbs_tuners_ins.sampling_down_factor)
return;
- idle_ticks = UINT_MAX;
- for_each_cpu_mask(j, policy->cpus) {
- unsigned int tmp_idle_ticks, total_idle_ticks;
- struct cpu_dbs_info_s *j_dbs_info;
+ /* Check for frequency decrease */
+ total_idle_ticks = this_dbs_info->prev_cpu_idle_up;
+ tmp_idle_ticks = total_idle_ticks -
+ this_dbs_info->prev_cpu_idle_down;
+ this_dbs_info->prev_cpu_idle_down = total_idle_ticks;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
- total_idle_ticks = j_dbs_info->prev_cpu_idle_up;
- tmp_idle_ticks = total_idle_ticks -
- j_dbs_info->prev_cpu_idle_down;
- j_dbs_info->prev_cpu_idle_down = total_idle_ticks;
-
- if (tmp_idle_ticks < idle_ticks)
- idle_ticks = tmp_idle_ticks;
- }
+ if (tmp_idle_ticks < idle_ticks)
+ idle_ticks = tmp_idle_ticks;
/* Scale idle ticks by 100 and compare with up and down ticks */
idle_ticks *= 100;
- down_skip[cpu] = 0;
+ this_dbs_info->down_skip = 0;
freq_down_sampling_rate = dbs_tuners_ins.sampling_rate *
dbs_tuners_ins.sampling_down_factor;
down_idle_ticks = (100 - dbs_tuners_ins.down_threshold) *
- usecs_to_jiffies(freq_down_sampling_rate);
+ usecs_to_jiffies(freq_down_sampling_rate);
if (idle_ticks > down_idle_ticks) {
- /* if we are already at the lowest speed then break out early
+ /*
+ * if we are already at the lowest speed then break out early
* or if we 'cannot' reduce the speed as the user might want
- * freq_step to be zero */
- if (requested_freq[cpu] == policy->min
+ * freq_step to be zero
+ */
+ if (this_dbs_info->requested_freq == policy->min
|| dbs_tuners_ins.freq_step == 0)
return;
@@ -430,13 +403,12 @@ static void dbs_check_cpu(int cpu)
if (unlikely(freq_step == 0))
freq_step = 5;
- requested_freq[cpu] -= freq_step;
- if (requested_freq[cpu] < policy->min)
- requested_freq[cpu] = policy->min;
+ this_dbs_info->requested_freq -= freq_step;
+ if (this_dbs_info->requested_freq < policy->min)
+ this_dbs_info->requested_freq = policy->min;
- __cpufreq_driver_target(policy,
- requested_freq[cpu],
- CPUFREQ_RELATION_H);
+ __cpufreq_driver_target(policy, this_dbs_info->requested_freq,
+ CPUFREQ_RELATION_H);
return;
}
}
@@ -493,11 +465,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
j_dbs_info = &per_cpu(cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;
- j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(j);
+ j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(cpu);
j_dbs_info->prev_cpu_idle_down
= j_dbs_info->prev_cpu_idle_up;
}
this_dbs_info->enable = 1;
+ this_dbs_info->down_skip = 0;
+ this_dbs_info->requested_freq = policy->cur;
sysfs_create_group(&policy->kobj, &dbs_attr_group);
dbs_enable++;
/*
@@ -507,16 +481,17 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
if (dbs_enable == 1) {
unsigned int latency;
/* policy latency is in nS. Convert it to uS first */
+ latency = policy->cpuinfo.transition_latency / 1000;
+ if (latency == 0)
+ latency = 1;
- latency = policy->cpuinfo.transition_latency;
- if (latency < 1000)
- latency = 1000;
-
- def_sampling_rate = (latency / 1000) *
+ def_sampling_rate = 10 * latency *
DEF_SAMPLING_RATE_LATENCY_MULTIPLIER;
+
+ if (def_sampling_rate < MIN_STAT_SAMPLING_RATE)
+ def_sampling_rate = MIN_STAT_SAMPLING_RATE;
+
dbs_tuners_ins.sampling_rate = def_sampling_rate;
- dbs_tuners_ins.ignore_nice = 0;
- dbs_tuners_ins.freq_step = 5;
dbs_timer_init();
}
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 69aa1db8336..956d121cb16 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -84,6 +84,7 @@ struct dbs_tuners {
static struct dbs_tuners dbs_tuners_ins = {
.up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
.sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
+ .ignore_nice = 0,
};
static inline unsigned int get_cpu_idle_time(unsigned int cpu)
@@ -350,6 +351,9 @@ static void dbs_check_cpu(int cpu)
freq_next = (freq_next * policy->cur) /
(dbs_tuners_ins.up_threshold - 10);
+ if (freq_next < policy->min)
+ freq_next = policy->min;
+
if (freq_next <= ((policy->cur * 95) / 100))
__cpufreq_driver_target(policy, freq_next, CPUFREQ_RELATION_L);
}
@@ -395,8 +399,11 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
return -EINVAL;
if (policy->cpuinfo.transition_latency >
- (TRANSITION_LATENCY_LIMIT * 1000))
+ (TRANSITION_LATENCY_LIMIT * 1000)) {
+ printk(KERN_WARNING "ondemand governor failed to load "
+ "due to too long transition latency\n");
return -EINVAL;
+ }
if (this_dbs_info->enable) /* Already enabled */
break;
@@ -431,8 +438,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
def_sampling_rate = MIN_STAT_SAMPLING_RATE;
dbs_tuners_ins.sampling_rate = def_sampling_rate;
- dbs_tuners_ins.ignore_nice = 0;
-
dbs_timer_init();
}
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 905f58ba8e1..ea06e3a4dc3 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -2044,7 +2044,7 @@ static int __init edac_mc_init(void)
*/
clear_pci_parity_errors();
- /* Create the MC sysfs entires */
+ /* Create the MC sysfs entries */
if (edac_sysfs_memctrl_setup()) {
edac_printk(KERN_ERR, EDAC_MC,
"Error initializing sysfs code\n");
diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c
index d6543fc4a92..339f405ff70 100644
--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -484,26 +484,15 @@ static void dcdbas_host_control(void)
static int dcdbas_reboot_notify(struct notifier_block *nb, unsigned long code,
void *unused)
{
- static unsigned int notify_cnt = 0;
-
switch (code) {
case SYS_DOWN:
case SYS_HALT:
case SYS_POWER_OFF:
if (host_control_on_shutdown) {
/* firmware is going to perform host control action */
- if (++notify_cnt == 2) {
- printk(KERN_WARNING
- "Please wait for shutdown "
- "action to complete...\n");
- dcdbas_host_control();
- }
- /*
- * register again and initiate the host control
- * action on the second notification to allow
- * everyone that registered to be notified
- */
- register_reboot_notifier(nb);
+ printk(KERN_WARNING "Please wait for shutdown "
+ "action to complete...\n");
+ dcdbas_host_control();
}
break;
}
@@ -514,7 +503,7 @@ static int dcdbas_reboot_notify(struct notifier_block *nb, unsigned long code,
static struct notifier_block dcdbas_reboot_nb = {
.notifier_call = dcdbas_reboot_notify,
.next = NULL,
- .priority = 0
+ .priority = INT_MIN
};
static DCDBAS_BIN_ATTR_RW(smi_data);
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index f9fae28f561..7aa5c38f085 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -65,15 +65,6 @@ config SENSORS_PCF8591
This driver can also be built as a module. If so, the module
will be called pcf8591.
-config SENSORS_RTC8564
- tristate "Epson 8564 RTC chip"
- depends on I2C && EXPERIMENTAL
- help
- If you say yes here you get support for the Epson 8564 RTC chip.
-
- This driver can also be built as a module. If so, the module
- will be called i2c-rtc8564.
-
config ISP1301_OMAP
tristate "Philips ISP1301 with OMAP OTG"
depends on I2C && ARCH_OMAP_OTG
@@ -126,13 +117,4 @@ config SENSORS_MAX6875
This driver can also be built as a module. If so, the module
will be called max6875.
-config RTC_X1205_I2C
- tristate "Xicor X1205 RTC chip"
- depends on I2C && EXPERIMENTAL
- help
- If you say yes here you get support for the Xicor X1205 RTC chip.
-
- This driver can also be built as a module. If so, the module
- will be called x1205.
-
endmenu
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 46178b57b1f..779868ef2e2 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -10,10 +10,8 @@ obj-$(CONFIG_SENSORS_M41T00) += m41t00.o
obj-$(CONFIG_SENSORS_PCA9539) += pca9539.o
obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o
obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
-obj-$(CONFIG_SENSORS_RTC8564) += rtc8564.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TPS65010) += tps65010.o
-obj-$(CONFIG_RTC_X1205_I2C) += x1205.o
ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
EXTRA_CFLAGS += -DDEBUG
diff --git a/drivers/i2c/chips/rtc8564.c b/drivers/i2c/chips/rtc8564.c
deleted file mode 100644
index 0d8699b3f48..00000000000
--- a/drivers/i2c/chips/rtc8564.c
+++ /dev/null
@@ -1,385 +0,0 @@
-/*
- * linux/drivers/i2c/chips/rtc8564.c
- *
- * Copyright (C) 2002-2004 Stefan Eletzhofer
- *
- * based on linux/drivers/acron/char/pcf8583.c
- * Copyright (C) 2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Driver for system3's EPSON RTC 8564 chip
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/bcd.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/rtc.h> /* get the user-level API */
-#include <linux/init.h>
-
-#include "rtc8564.h"
-
-#ifdef DEBUG
-# define _DBG(x, fmt, args...) do{ if (debug>=x) printk(KERN_DEBUG"%s: " fmt "\n", __FUNCTION__, ##args); } while(0);
-#else
-# define _DBG(x, fmt, args...) do { } while(0);
-#endif
-
-#define _DBGRTCTM(x, rtctm) if (debug>=x) printk("%s: secs=%d, mins=%d, hours=%d, mday=%d, " \
- "mon=%d, year=%d, wday=%d VL=%d\n", __FUNCTION__, \
- (rtctm).secs, (rtctm).mins, (rtctm).hours, (rtctm).mday, \
- (rtctm).mon, (rtctm).year, (rtctm).wday, (rtctm).vl);
-
-struct rtc8564_data {
- struct i2c_client client;
- u16 ctrl;
-};
-
-static inline u8 _rtc8564_ctrl1(struct i2c_client *client)
-{
- struct rtc8564_data *data = i2c_get_clientdata(client);
- return data->ctrl & 0xff;
-}
-static inline u8 _rtc8564_ctrl2(struct i2c_client *client)
-{
- struct rtc8564_data *data = i2c_get_clientdata(client);
- return (data->ctrl & 0xff00) >> 8;
-}
-
-#define CTRL1(c) _rtc8564_ctrl1(c)
-#define CTRL2(c) _rtc8564_ctrl2(c)
-
-static int debug;
-module_param(debug, int, S_IRUGO | S_IWUSR);
-
-static struct i2c_driver rtc8564_driver;
-
-static unsigned short ignore[] = { I2C_CLIENT_END };
-static unsigned short normal_addr[] = { 0x51, I2C_CLIENT_END };
-
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_addr,
- .probe = ignore,
- .ignore = ignore,
-};
-
-static int rtc8564_read_mem(struct i2c_client *client, struct mem *mem);
-static int rtc8564_write_mem(struct i2c_client *client, struct mem *mem);
-
-static int rtc8564_read(struct i2c_client *client, unsigned char adr,
- unsigned char *buf, unsigned char len)
-{
- int ret = -EIO;
- unsigned char addr[1] = { adr };
- struct i2c_msg msgs[2] = {
- {client->addr, 0, 1, addr},
- {client->addr, I2C_M_RD, len, buf}
- };
-
- _DBG(1, "client=%p, adr=%d, buf=%p, len=%d", client, adr, buf, len);
-
- if (!buf) {
- ret = -EINVAL;
- goto done;
- }
-
- ret = i2c_transfer(client->adapter, msgs, 2);
- if (ret == 2) {
- ret = 0;
- }
-
-done:
- return ret;
-}
-
-static int rtc8564_write(struct i2c_client *client, unsigned char adr,
- unsigned char *data, unsigned char len)
-{
- int ret = 0;
- unsigned char _data[16];
- struct i2c_msg wr;
- int i;
-
- if (!data || len > 15) {
- ret = -EINVAL;
- goto done;
- }
-
- _DBG(1, "client=%p, adr=%d, buf=%p, len=%d", client, adr, data, len);
-
- _data[0] = adr;
- for (i = 0; i < len; i++) {
- _data[i + 1] = data[i];
- _DBG(5, "data[%d] = 0x%02x (%d)", i, data[i], data[i]);
- }
-
- wr.addr = client->addr;
- wr.flags = 0;
- wr.len = len + 1;
- wr.buf = _data;
-
- ret = i2c_transfer(client->adapter, &wr, 1);
- if (ret == 1) {
- ret = 0;
- }
-
-done:
- return ret;
-}
-
-static int rtc8564_attach(struct i2c_adapter *adap, int addr, int kind)
-{
- int ret;
- struct i2c_client *new_client;
- struct rtc8564_data *d;
- unsigned char data[10];
- unsigned char ad[1] = { 0 };
- struct i2c_msg ctrl_wr[1] = {
- {addr, 0, 2, data}
- };
- struct i2c_msg ctrl_rd[2] = {
- {addr, 0, 1, ad},
- {addr, I2C_M_RD, 2, data}
- };
-
- d = kzalloc(sizeof(struct rtc8564_data), GFP_KERNEL);
- if (!d) {
- ret = -ENOMEM;
- goto done;
- }
- new_client = &d->client;
-
- strlcpy(new_client->name, "RTC8564", I2C_NAME_SIZE);
- i2c_set_clientdata(new_client, d);
- new_client->addr = addr;
- new_client->adapter = adap;
- new_client->driver = &rtc8564_driver;
-
- _DBG(1, "client=%p", new_client);
-
- /* init ctrl1 reg */
- data[0] = 0;
- data[1] = 0;
- ret = i2c_transfer(new_client->adapter, ctrl_wr, 1);
- if (ret != 1) {
- printk(KERN_INFO "rtc8564: cant init ctrl1\n");
- ret = -ENODEV;
- goto done;
- }
-
- /* read back ctrl1 and ctrl2 */
- ret = i2c_transfer(new_client->adapter, ctrl_rd, 2);
- if (ret != 2) {
- printk(KERN_INFO "rtc8564: cant read ctrl\n");
- ret = -ENODEV;
- goto done;
- }
-
- d->ctrl = data[0] | (data[1] << 8);
-
- _DBG(1, "RTC8564_REG_CTRL1=%02x, RTC8564_REG_CTRL2=%02x",
- data[0], data[1]);
-
- ret = i2c_attach_client(new_client);
-done:
- if (ret) {
- kfree(d);
- }
- return ret;
-}
-
-static int rtc8564_probe(struct i2c_adapter *adap)
-{
- return i2c_probe(adap, &addr_data, rtc8564_attach);
-}
-
-static int rtc8564_detach(struct i2c_client *client)
-{
- i2c_detach_client(client);
- kfree(i2c_get_clientdata(client));
- return 0;
-}
-
-static int rtc8564_get_datetime(struct i2c_client *client, struct rtc_tm *dt)
-{
- int ret = -EIO;
- unsigned char buf[15];
-
- _DBG(1, "client=%p, dt=%p", client, dt);
-
- if (!dt)
- return -EINVAL;
-
- memset(buf, 0, sizeof(buf));
-
- ret = rtc8564_read(client, 0, buf, 15);
- if (ret)
- return ret;
-
- /* century stored in minute alarm reg */
- dt->year = BCD2BIN(buf[RTC8564_REG_YEAR]);
- dt->year += 100 * BCD2BIN(buf[RTC8564_REG_AL_MIN] & 0x3f);
- dt->mday = BCD2BIN(buf[RTC8564_REG_DAY] & 0x3f);
- dt->wday = BCD2BIN(buf[RTC8564_REG_WDAY] & 7);
- dt->mon = BCD2BIN(buf[RTC8564_REG_MON_CENT] & 0x1f);
-
- dt->secs = BCD2BIN(buf[RTC8564_REG_SEC] & 0x7f);
- dt->vl = (buf[RTC8564_REG_SEC] & 0x80) == 0x80;
- dt->mins = BCD2BIN(buf[RTC8564_REG_MIN] & 0x7f);
- dt->hours = BCD2BIN(buf[RTC8564_REG_HR] & 0x3f);
-
- _DBGRTCTM(2, *dt);
-
- return 0;
-}
-
-static int
-rtc8564_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
-{
- int ret, len = 5;
- unsigned char buf[15];
-
- _DBG(1, "client=%p, dt=%p", client, dt);
-
- if (!dt)
- return -EINVAL;
-
- _DBGRTCTM(2, *dt);
-
- buf[RTC8564_REG_CTRL1] = CTRL1(client) | RTC8564_CTRL1_STOP;
- buf[RTC8564_REG_CTRL2] = CTRL2(client);
- buf[RTC8564_REG_SEC] = BIN2BCD(dt->secs);
- buf[RTC8564_REG_MIN] = BIN2BCD(dt->mins);
- buf[RTC8564_REG_HR] = BIN2BCD(dt->hours);
-
- if (datetoo) {
- len += 5;
- buf[RTC8564_REG_DAY] = BIN2BCD(dt->mday);
- buf[RTC8564_REG_WDAY] = BIN2BCD(dt->wday);
- buf[RTC8564_REG_MON_CENT] = BIN2BCD(dt->mon) & 0x1f;
- /* century stored in minute alarm reg */
- buf[RTC8564_REG_YEAR] = BIN2BCD(dt->year % 100);
- buf[RTC8564_REG_AL_MIN] = BIN2BCD(dt->year / 100);
- }
-
- ret = rtc8564_write(client, 0, buf, len);
- if (ret) {
- _DBG(1, "error writing data! %d", ret);
- }
-
- buf[RTC8564_REG_CTRL1] = CTRL1(client);
- ret = rtc8564_write(client, 0, buf, 1);
- if (ret) {
- _DBG(1, "error writing data! %d", ret);
- }
-
- return ret;
-}
-
-static int rtc8564_get_ctrl(struct i2c_client *client, unsigned int *ctrl)
-{
- struct rtc8564_data *data = i2c_get_clientdata(client);
-
- if (!ctrl)
- return -1;
-
- *ctrl = data->ctrl;
- return 0;
-}
-
-static int rtc8564_set_ctrl(struct i2c_client *client, unsigned int *ctrl)
-{
- struct rtc8564_data *data = i2c_get_clientdata(client);
- unsigned char buf[2];
-
- if (!ctrl)
- return -1;
-
- buf[0] = *ctrl & 0xff;
- buf[1] = (*ctrl & 0xff00) >> 8;
- data->ctrl = *ctrl;
-
- return rtc8564_write(client, 0, buf, 2);
-}
-
-static int rtc8564_read_mem(struct i2c_client *client, struct mem *mem)
-{
-
- if (!mem)
- return -EINVAL;
-
- return rtc8564_read(client, mem->loc, mem->data, mem->nr);
-}
-
-static int rtc8564_write_mem(struct i2c_client *client, struct mem *mem)
-{
-
- if (!mem)
- return -EINVAL;
-
- return rtc8564_write(client, mem->loc, mem->data, mem->nr);
-}
-
-static int
-rtc8564_command(struct i2c_client *client, unsigned int cmd, void *arg)
-{
-
- _DBG(1, "cmd=%d", cmd);
-
- switch (cmd) {
- case RTC_GETDATETIME:
- return rtc8564_get_datetime(client, arg);
-
- case RTC_SETTIME:
- return rtc8564_set_datetime(client, arg, 0);
-
- case RTC_SETDATETIME:
- return rtc8564_set_datetime(client, arg, 1);
-
- case RTC_GETCTRL:
- return rtc8564_get_ctrl(client, arg);
-
- case RTC_SETCTRL:
- return rtc8564_set_ctrl(client, arg);
-
- case MEM_READ:
- return rtc8564_read_mem(client, arg);
-
- case MEM_WRITE:
- return rtc8564_write_mem(client, arg);
-
- default:
- return -EINVAL;
- }
-}
-
-static struct i2c_driver rtc8564_driver = {
- .driver = {
- .name = "RTC8564",
- },
- .id = I2C_DRIVERID_RTC8564,
- .attach_adapter = rtc8564_probe,
- .detach_client = rtc8564_detach,
- .command = rtc8564_command
-};
-
-static __init int rtc8564_init(void)
-{
- return i2c_add_driver(&rtc8564_driver);
-}
-
-static __exit void rtc8564_exit(void)
-{
- i2c_del_driver(&rtc8564_driver);
-}
-
-MODULE_AUTHOR("Stefan Eletzhofer <Stefan.Eletzhofer@eletztrick.de>");
-MODULE_DESCRIPTION("EPSON RTC8564 Driver");
-MODULE_LICENSE("GPL");
-
-module_init(rtc8564_init);
-module_exit(rtc8564_exit);
diff --git a/drivers/i2c/chips/rtc8564.h b/drivers/i2c/chips/rtc8564.h
deleted file mode 100644
index e5342d10b8f..00000000000
--- a/drivers/i2c/chips/rtc8564.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * linux/drivers/i2c/chips/rtc8564.h
- *
- * Copyright (C) 2002-2004 Stefan Eletzhofer
- *
- * based on linux/drivers/acron/char/pcf8583.h
- * Copyright (C) 2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-struct rtc_tm {
- unsigned char secs;
- unsigned char mins;
- unsigned char hours;
- unsigned char mday;
- unsigned char mon;
- unsigned short year; /* xxxx 4 digits :) */
- unsigned char wday;
- unsigned char vl;
-};
-
-struct mem {
- unsigned int loc;
- unsigned int nr;
- unsigned char *data;
-};
-
-#define RTC_GETDATETIME 0
-#define RTC_SETTIME 1
-#define RTC_SETDATETIME 2
-#define RTC_GETCTRL 3
-#define RTC_SETCTRL 4
-#define MEM_READ 5
-#define MEM_WRITE 6
-
-#define RTC8564_REG_CTRL1 0x0 /* T 0 S 0 | T 0 0 0 */
-#define RTC8564_REG_CTRL2 0x1 /* 0 0 0 TI/TP | AF TF AIE TIE */
-#define RTC8564_REG_SEC 0x2 /* VL 4 2 1 | 8 4 2 1 */
-#define RTC8564_REG_MIN 0x3 /* x 4 2 1 | 8 4 2 1 */
-#define RTC8564_REG_HR 0x4 /* x x 2 1 | 8 4 2 1 */
-#define RTC8564_REG_DAY 0x5 /* x x 2 1 | 8 4 2 1 */
-#define RTC8564_REG_WDAY 0x6 /* x x x x | x 4 2 1 */
-#define RTC8564_REG_MON_CENT 0x7 /* C x x 1 | 8 4 2 1 */
-#define RTC8564_REG_YEAR 0x8 /* 8 4 2 1 | 8 4 2 1 */
-#define RTC8564_REG_AL_MIN 0x9 /* AE 4 2 1 | 8 4 2 1 */
-#define RTC8564_REG_AL_HR 0xa /* AE 4 2 1 | 8 4 2 1 */
-#define RTC8564_REG_AL_DAY 0xb /* AE x 2 1 | 8 4 2 1 */
-#define RTC8564_REG_AL_WDAY 0xc /* AE x x x | x 4 2 1 */
-#define RTC8564_REG_CLKOUT 0xd /* FE x x x | x x FD1 FD0 */
-#define RTC8564_REG_TCTL 0xe /* TE x x x | x x FD1 FD0 */
-#define RTC8564_REG_TIMER 0xf /* 8 bit binary */
-
-/* Control reg */
-#define RTC8564_CTRL1_TEST1 (1<<3)
-#define RTC8564_CTRL1_STOP (1<<5)
-#define RTC8564_CTRL1_TEST2 (1<<7)
-
-#define RTC8564_CTRL2_TIE (1<<0)
-#define RTC8564_CTRL2_AIE (1<<1)
-#define RTC8564_CTRL2_TF (1<<2)
-#define RTC8564_CTRL2_AF (1<<3)
-#define RTC8564_CTRL2_TI_TP (1<<4)
-
-/* CLKOUT frequencies */
-#define RTC8564_FD_32768HZ (0x0)
-#define RTC8564_FD_1024HZ (0x1)
-#define RTC8564_FD_32 (0x2)
-#define RTC8564_FD_1HZ (0x3)
-
-/* Timer CTRL */
-#define RTC8564_TD_4096HZ (0x0)
-#define RTC8564_TD_64HZ (0x1)
-#define RTC8564_TD_1HZ (0x2)
-#define RTC8564_TD_1_60HZ (0x3)
-
-#define I2C_DRIVERID_RTC8564 0xf000
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index c7671e18801..b4a41d6d071 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2143,6 +2143,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
req.cmd[0] = GPCMD_READ_CDVD_CAPACITY;
req.data = (char *)&capbuf;
req.data_len = sizeof(capbuf);
+ req.flags |= REQ_QUIET;
stat = cdrom_queue_packet_command(drive, &req);
if (stat == 0) {
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index ebc59064b47..f04791a58df 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -433,6 +433,7 @@
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
+#include <linux/jiffies.h>
#include <linux/major.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/errno.h>
@@ -2336,7 +2337,7 @@ static ide_startstop_t idetape_rw_callback (ide_drive_t *drive)
}
if (time_after(jiffies, tape->insert_time))
tape->insert_speed = tape->insert_size / 1024 * HZ / (jiffies - tape->insert_time);
- if (jiffies - tape->avg_time >= HZ) {
+ if (time_after_eq(jiffies, tape->avg_time + HZ)) {
tape->avg_speed = tape->avg_size * HZ / (jiffies - tape->avg_time) / 1024;
tape->avg_size = 0;
tape->avg_time = jiffies;
@@ -2497,7 +2498,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
} else {
return ide_do_reset(drive);
}
- } else if (jiffies - tape->dsc_polling_start > IDETAPE_DSC_MA_THRESHOLD)
+ } else if (time_after(jiffies, tape->dsc_polling_start + IDETAPE_DSC_MA_THRESHOLD))
tape->dsc_polling_frequency = IDETAPE_DSC_MA_SLOW;
idetape_postpone_request(drive);
return ide_stopped;
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index 21965e5ef25..b22ee546231 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -347,10 +347,8 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
break;
case AMD_UDMA_66:
- pci_read_config_dword(dev, AMD_UDMA_TIMING, &u);
- for (i = 24; i >= 0; i -= 8)
- if ((u >> i) & 4)
- amd_80w |= (1 << (1 - (i >> 4)));
+ /* no host side cable detection */
+ amd_80w = 0x03;
break;
}
@@ -386,8 +384,6 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
if (amd_clock < 20000 || amd_clock > 50000) {
printk(KERN_WARNING "%s: User given PCI clock speed impossible (%d), using 33 MHz instead.\n",
amd_chipset->name, amd_clock);
- printk(KERN_WARNING "%s: Use ide0=ata66 if you want to assume 80-wire cable\n",
- amd_chipset->name);
amd_clock = 33333;
}
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
index 6e3ab0c38c4..f82e8210972 100644
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -41,14 +41,15 @@
static int ide_generic_all; /* Set to claim all devices */
+#ifndef MODULE
static int __init ide_generic_all_on(char *unused)
{
ide_generic_all = 1;
printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
return 1;
}
-
__setup("all-generic-ide", ide_generic_all_on);
+#endif
static void __devinit init_hwif_generic (ide_hwif_t *hwif)
{
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 75a2253a3e6..8e9d87701ce 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -112,6 +112,7 @@ static const struct {
{ "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 },
{ "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 },
+ { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 },
{ "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 },
};
@@ -524,6 +525,7 @@ static void config_art_rwp_pio (ide_drive_t *drive, u8 pio)
case 3: test1 = 0x30|0x03; break;
case 2: test1 = 0x40|0x04; break;
case 1: test1 = 0x60|0x07; break;
+ case 0: test1 = 0x00; break;
default: break;
}
pci_write_config_byte(dev, drive_pci, test1);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 4fe3da3c667..f8af0945964 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -923,7 +923,7 @@ void input_unregister_handler(struct input_handler *handler)
static int input_open_file(struct inode *inode, struct file *file)
{
struct input_handler *handler = input_table[iminor(inode) >> 5];
- struct file_operations *old_fops, *new_fops = NULL;
+ const struct file_operations *old_fops, *new_fops = NULL;
int err;
/* No load-on-demand here? */
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 623adbb0d13..9b493f0becc 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -1485,6 +1485,7 @@ static int __init capi_init(void)
{
char *p;
char *compileinfo;
+ int major_ret;
if ((p = strchr(revision, ':')) != 0 && p[1]) {
strlcpy(rev, p + 2, sizeof(rev));
@@ -1493,11 +1494,12 @@ static int __init capi_init(void)
} else
strcpy(rev, "1.0");
- if (register_chrdev(capi_major, "capi20", &capi_fops)) {
+ major_ret = register_chrdev(capi_major, "capi20", &capi_fops);
+ if (major_ret < 0) {
printk(KERN_ERR "capi20: unable to get major %d\n", capi_major);
- return -EIO;
+ return major_ret;
}
-
+ capi_major = major_ret;
capi_class = class_create(THIS_MODULE, "capi");
if (IS_ERR(capi_class)) {
unregister_chrdev(capi_major, "capi20");
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c
index 2cc8b27e4c3..ca9dc00a45c 100644
--- a/drivers/isdn/capi/kcapi_proc.c
+++ b/drivers/isdn/capi/kcapi_proc.c
@@ -233,7 +233,7 @@ static struct file_operations proc_applstats_ops = {
};
static void
-create_seq_entry(char *name, mode_t mode, struct file_operations *f)
+create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
{
struct proc_dir_entry *entry;
entry = create_proc_entry(name, mode, NULL);
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index d2ead1776c1..34fcabac5fd 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -80,7 +80,7 @@ static struct adb_driver *adb_driver_list[] = {
static struct class *adb_dev_class;
struct adb_driver *adb_controller;
-struct notifier_block *adb_client_list = NULL;
+BLOCKING_NOTIFIER_HEAD(adb_client_list);
static int adb_got_sleep;
static int adb_inited;
static pid_t adb_probe_task_pid;
@@ -354,7 +354,8 @@ adb_notify_sleep(struct pmu_sleep_notifier *self, int when)
/* Stop autopoll */
if (adb_controller->autopoll)
adb_controller->autopoll(0);
- ret = notifier_call_chain(&adb_client_list, ADB_MSG_POWERDOWN, NULL);
+ ret = blocking_notifier_call_chain(&adb_client_list,
+ ADB_MSG_POWERDOWN, NULL);
if (ret & NOTIFY_STOP_MASK) {
up(&adb_probe_mutex);
return PBOOK_SLEEP_REFUSE;
@@ -391,7 +392,8 @@ do_adb_reset_bus(void)
if (adb_controller->autopoll)
adb_controller->autopoll(0);
- nret = notifier_call_chain(&adb_client_list, ADB_MSG_PRE_RESET, NULL);
+ nret = blocking_notifier_call_chain(&adb_client_list,
+ ADB_MSG_PRE_RESET, NULL);
if (nret & NOTIFY_STOP_MASK) {
if (adb_controller->autopoll)
adb_controller->autopoll(autopoll_devs);
@@ -426,7 +428,8 @@ do_adb_reset_bus(void)
}
up(&adb_handler_sem);
- nret = notifier_call_chain(&adb_client_list, ADB_MSG_POST_RESET, NULL);
+ nret = blocking_notifier_call_chain(&adb_client_list,
+ ADB_MSG_POST_RESET, NULL);
if (nret & NOTIFY_STOP_MASK)
return -EBUSY;
diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c
index c0b46bceb5d..f5779a73184 100644
--- a/drivers/macintosh/adbhid.c
+++ b/drivers/macintosh/adbhid.c
@@ -1214,7 +1214,8 @@ static int __init adbhid_init(void)
adbhid_probe();
- notifier_chain_register(&adb_client_list, &adbhid_adb_notifier);
+ blocking_notifier_chain_register(&adb_client_list,
+ &adbhid_adb_notifier);
return 0;
}
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 4f5f3abc9cb..0b5ff553e39 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -187,7 +187,7 @@ extern int disable_kernel_backlight;
int __fake_sleep;
int asleep;
-struct notifier_block *sleep_notifier_list;
+BLOCKING_NOTIFIER_HEAD(sleep_notifier_list);
#ifdef CONFIG_ADB
static int adb_dev_map = 0;
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index f08e52f2107..35b70323e7e 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -102,7 +102,7 @@ static int pmu_kind = PMU_UNKNOWN;
static int pmu_fully_inited = 0;
int asleep;
-struct notifier_block *sleep_notifier_list;
+BLOCKING_NOTIFIER_HEAD(sleep_notifier_list);
static int pmu_probe(void);
static int pmu_init(void);
@@ -913,7 +913,8 @@ int powerbook_sleep(void)
struct adb_request sleep_req;
/* Notify device drivers */
- ret = notifier_call_chain(&sleep_notifier_list, PBOOK_SLEEP, NULL);
+ ret = blocking_notifier_call_chain(&sleep_notifier_list,
+ PBOOK_SLEEP, NULL);
if (ret & NOTIFY_STOP_MASK)
return -EBUSY;
@@ -984,7 +985,7 @@ int powerbook_sleep(void)
enable_irq(i);
/* Notify drivers */
- notifier_call_chain(&sleep_notifier_list, PBOOK_WAKE, NULL);
+ blocking_notifier_call_chain(&sleep_notifier_list, PBOOK_WAKE, NULL);
/* reenable ADB autopoll */
pmu_adb_autopoll(adb_dev_map);
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 6c0ba04bc57..ab3faa702d5 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -52,7 +52,7 @@
static LIST_HEAD(wf_controls);
static LIST_HEAD(wf_sensors);
static DEFINE_MUTEX(wf_lock);
-static struct notifier_block *wf_client_list;
+static BLOCKING_NOTIFIER_HEAD(wf_client_list);
static int wf_client_count;
static unsigned int wf_overtemp;
static unsigned int wf_overtemp_counter;
@@ -68,7 +68,7 @@ static struct platform_device wf_platform_device = {
static inline void wf_notify(int event, void *param)
{
- notifier_call_chain(&wf_client_list, event, param);
+ blocking_notifier_call_chain(&wf_client_list, event, param);
}
int wf_critical_overtemp(void)
@@ -398,7 +398,7 @@ int wf_register_client(struct notifier_block *nb)
struct wf_sensor *sr;
mutex_lock(&wf_lock);
- rc = notifier_chain_register(&wf_client_list, nb);
+ rc = blocking_notifier_chain_register(&wf_client_list, nb);
if (rc != 0)
goto bail;
wf_client_count++;
@@ -417,7 +417,7 @@ EXPORT_SYMBOL_GPL(wf_register_client);
int wf_unregister_client(struct notifier_block *nb)
{
mutex_lock(&wf_lock);
- notifier_chain_unregister(&wf_client_list, nb);
+ blocking_notifier_chain_unregister(&wf_client_list, nb);
wf_client_count++;
if (wf_client_count == 0)
wf_stop_thread();
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index ac43f98062f..fd2aae150cc 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -127,6 +127,32 @@ config MD_RAID5
If unsure, say Y.
+config MD_RAID5_RESHAPE
+ bool "Support adding drives to a raid-5 array (experimental)"
+ depends on MD_RAID5 && EXPERIMENTAL
+ ---help---
+ A RAID-5 set can be expanded by adding extra drives. This
+ requires "restriping" the array which means (almost) every
+ block must be written to a different place.
+
+ This option allows such restriping to be done while the array
+ is online. However it is still EXPERIMENTAL code. It should
+ work, but please be sure that you have backups.
+
+ You will need a version of mdadm newer than 2.3.1. During the
+ early stage of reshape there is a critical section where live data
+ is being over-written. A crash during this time needs extra care
+ for recovery. The newer mdadm takes a copy of the data in the
+ critical section and will restore it, if necessary, after a crash.
+
+ The mdadm usage is e.g.
+ mdadm --grow /dev/md1 --raid-disks=6
+ to grow '/dev/md1' to having 6 disks.
+
+ Note: The array can only be expanded, not contracted.
+ There should be enough spares already present to make the new
+ array workable.
+
config MD_RAID6
tristate "RAID-6 mode"
depends on BLK_DEV_MD
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 259e86f2654..61a590bb624 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -518,6 +518,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
char *ivopts;
unsigned int crypto_flags;
unsigned int key_size;
+ unsigned long long tmpll;
if (argc != 5) {
ti->error = PFX "Not enough arguments";
@@ -633,15 +634,17 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad5;
}
- if (sscanf(argv[2], SECTOR_FORMAT, &cc->iv_offset) != 1) {
+ if (sscanf(argv[2], "%llu", &tmpll) != 1) {
ti->error = PFX "Invalid iv_offset sector";
goto bad5;
}
+ cc->iv_offset = tmpll;
- if (sscanf(argv[4], SECTOR_FORMAT, &cc->start) != 1) {
+ if (sscanf(argv[4], "%llu", &tmpll) != 1) {
ti->error = PFX "Invalid device sector";
goto bad5;
}
+ cc->start = tmpll;
if (dm_get_device(ti, argv[3], cc->start, ti->len,
dm_table_get_mode(ti->table), &cc->dev)) {
@@ -885,8 +888,8 @@ static int crypt_status(struct dm_target *ti, status_type_t type,
result[sz++] = '-';
}
- DMEMIT(" " SECTOR_FORMAT " %s " SECTOR_FORMAT,
- cc->iv_offset, cc->dev->name, cc->start);
+ DMEMIT(" %llu %s %llu", (unsigned long long)cc->iv_offset,
+ cc->dev->name, (unsigned long long)cc->start);
break;
}
return 0;
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 442e2be6052..8edd6435414 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/dm-ioctl.h>
+#include <linux/hdreg.h>
#include <asm/uaccess.h>
@@ -244,9 +245,9 @@ static void __hash_remove(struct hash_cell *hc)
dm_table_put(table);
}
- dm_put(hc->md);
if (hc->new_map)
dm_table_put(hc->new_map);
+ dm_put(hc->md);
free_cell(hc);
}
@@ -600,12 +601,22 @@ static int dev_create(struct dm_ioctl *param, size_t param_size)
*/
static struct hash_cell *__find_device_hash_cell(struct dm_ioctl *param)
{
+ struct mapped_device *md;
+ void *mdptr = NULL;
+
if (*param->uuid)
return __get_uuid_cell(param->uuid);
- else if (*param->name)
+
+ if (*param->name)
return __get_name_cell(param->name);
- else
- return dm_get_mdptr(huge_decode_dev(param->dev));
+
+ md = dm_get_md(huge_decode_dev(param->dev));
+ if (md) {
+ mdptr = dm_get_mdptr(md);
+ dm_put(md);
+ }
+
+ return mdptr;
}
static struct mapped_device *find_device(struct dm_ioctl *param)
@@ -690,6 +701,54 @@ static int dev_rename(struct dm_ioctl *param, size_t param_size)
return dm_hash_rename(param->name, new_name);
}
+static int dev_set_geometry(struct dm_ioctl *param, size_t param_size)
+{
+ int r = -EINVAL, x;
+ struct mapped_device *md;
+ struct hd_geometry geometry;
+ unsigned long indata[4];
+ char *geostr = (char *) param + param->data_start;
+
+ md = find_device(param);
+ if (!md)
+ return -ENXIO;
+
+ if (geostr < (char *) (param + 1) ||
+ invalid_str(geostr, (void *) param + param_size)) {
+ DMWARN("Invalid geometry supplied.");
+ goto out;
+ }
+
+ x = sscanf(geostr, "%lu %lu %lu %lu", indata,
+ indata + 1, indata + 2, indata + 3);
+
+ if (x != 4) {
+ DMWARN("Unable to interpret geometry settings.");
+ goto out;
+ }
+
+ if (indata[0] > 65535 || indata[1] > 255 ||
+ indata[2] > 255 || indata[3] > ULONG_MAX) {
+ DMWARN("Geometry exceeds range limits.");
+ goto out;
+ }
+
+ geometry.cylinders = indata[0];
+ geometry.heads = indata[1];
+ geometry.sectors = indata[2];
+ geometry.start = indata[3];
+
+ r = dm_set_geometry(md, &geometry);
+ if (!r)
+ r = __dev_status(md, param);
+
+ param->data_size = 0;
+
+out:
+ dm_put(md);
+ return r;
+}
+
static int do_suspend(struct dm_ioctl *param)
{
int r = 0;
@@ -975,33 +1034,43 @@ static int table_load(struct dm_ioctl *param, size_t param_size)
int r;
struct hash_cell *hc;
struct dm_table *t;
+ struct mapped_device *md;
- r = dm_table_create(&t, get_mode(param), param->target_count);
+ md = find_device(param);
+ if (!md)
+ return -ENXIO;
+
+ r = dm_table_create(&t, get_mode(param), param->target_count, md);
if (r)
- return r;
+ goto out;
r = populate_table(t, param, param_size);
if (r) {
dm_table_put(t);
- return r;
+ goto out;
}
down_write(&_hash_lock);
- hc = __find_device_hash_cell(param);
- if (!hc) {
- DMWARN("device doesn't appear to be in the dev hash table.");
- up_write(&_hash_lock);
+ hc = dm_get_mdptr(md);
+ if (!hc || hc->md != md) {
+ DMWARN("device has been removed from the dev hash table.");
dm_table_put(t);
- return -ENXIO;
+ up_write(&_hash_lock);
+ r = -ENXIO;
+ goto out;
}
if (hc->new_map)
dm_table_put(hc->new_map);
hc->new_map = t;
+ up_write(&_hash_lock);
+
param->flags |= DM_INACTIVE_PRESENT_FLAG;
+ r = __dev_status(md, param);
+
+out:
+ dm_put(md);
- r = __dev_status(hc->md, param);
- up_write(&_hash_lock);
return r;
}
@@ -1214,7 +1283,8 @@ static ioctl_fn lookup_ioctl(unsigned int cmd)
{DM_LIST_VERSIONS_CMD, list_versions},
- {DM_TARGET_MSG_CMD, target_message}
+ {DM_TARGET_MSG_CMD, target_message},
+ {DM_DEV_SET_GEOMETRY_CMD, dev_set_geometry}
};
return (cmd >= ARRAY_SIZE(_ioctls)) ? NULL : _ioctls[cmd].fn;
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 6a2cd5dc8a6..daf586c0898 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -26,6 +26,7 @@ struct linear_c {
static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
{
struct linear_c *lc;
+ unsigned long long tmp;
if (argc != 2) {
ti->error = "dm-linear: Invalid argument count";
@@ -38,10 +39,11 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
return -ENOMEM;
}
- if (sscanf(argv[1], SECTOR_FORMAT, &lc->start) != 1) {
+ if (sscanf(argv[1], "%llu", &tmp) != 1) {
ti->error = "dm-linear: Invalid device sector";
goto bad;
}
+ lc->start = tmp;
if (dm_get_device(ti, argv[0], lc->start, ti->len,
dm_table_get_mode(ti->table), &lc->dev)) {
@@ -87,8 +89,8 @@ static int linear_status(struct dm_target *ti, status_type_t type,
break;
case STATUSTYPE_TABLE:
- snprintf(result, maxlen, "%s " SECTOR_FORMAT, lc->dev->name,
- lc->start);
+ snprintf(result, maxlen, "%s %llu", lc->dev->name,
+ (unsigned long long)lc->start);
break;
}
return 0;
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 4e90f231fbf..d12cf3e5e07 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -402,9 +402,21 @@ static void rh_dec(struct region_hash *rh, region_t region)
spin_lock_irqsave(&rh->region_lock, flags);
if (atomic_dec_and_test(&reg->pending)) {
+ /*
+ * There is no pending I/O for this region.
+ * We can move the region to corresponding list for next action.
+ * At this point, the region is not yet connected to any list.
+ *
+ * If the state is RH_NOSYNC, the region should be kept off
+ * from clean list.
+ * The hash entry for RH_NOSYNC will remain in memory
+ * until the region is recovered or the map is reloaded.
+ */
+
+ /* do nothing for RH_NOSYNC */
if (reg->state == RH_RECOVERING) {
list_add_tail(&reg->list, &rh->quiesced_regions);
- } else {
+ } else if (reg->state == RH_DIRTY) {
reg->state = RH_CLEAN;
list_add(&reg->list, &rh->clean_regions);
}
@@ -922,9 +934,9 @@ static inline int _check_region_size(struct dm_target *ti, uint32_t size)
static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
unsigned int mirror, char **argv)
{
- sector_t offset;
+ unsigned long long offset;
- if (sscanf(argv[1], SECTOR_FORMAT, &offset) != 1) {
+ if (sscanf(argv[1], "%llu", &offset) != 1) {
ti->error = "dm-mirror: Invalid offset";
return -EINVAL;
}
@@ -1191,16 +1203,17 @@ static int mirror_status(struct dm_target *ti, status_type_t type,
for (m = 0; m < ms->nr_mirrors; m++)
DMEMIT("%s ", ms->mirror[m].dev->name);
- DMEMIT(SECTOR_FORMAT "/" SECTOR_FORMAT,
- ms->rh.log->type->get_sync_count(ms->rh.log),
- ms->nr_regions);
+ DMEMIT("%llu/%llu",
+ (unsigned long long)ms->rh.log->type->
+ get_sync_count(ms->rh.log),
+ (unsigned long long)ms->nr_regions);
break;
case STATUSTYPE_TABLE:
DMEMIT("%d ", ms->nr_mirrors);
for (m = 0; m < ms->nr_mirrors; m++)
- DMEMIT("%s " SECTOR_FORMAT " ",
- ms->mirror[m].dev->name, ms->mirror[m].offset);
+ DMEMIT("%s %llu ", ms->mirror[m].dev->name,
+ (unsigned long long)ms->mirror[m].offset);
}
return 0;
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 7401540086d..08312b46463 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -49,11 +49,26 @@ struct pending_exception {
struct bio_list snapshot_bios;
/*
- * Other pending_exceptions that are processing this
- * chunk. When this list is empty, we know we can
- * complete the origins.
+ * Short-term queue of pending exceptions prior to submission.
*/
- struct list_head siblings;
+ struct list_head list;
+
+ /*
+ * The primary pending_exception is the one that holds
+ * the sibling_count and the list of origin_bios for a
+ * group of pending_exceptions. It is always last to get freed.
+ * These fields get set up when writing to the origin.
+ */
+ struct pending_exception *primary_pe;
+
+ /*
+ * Number of pending_exceptions processing this chunk.
+ * When this drops to zero we must complete the origin bios.
+ * If incrementing or decrementing this, hold pe->snap->lock for
+ * the sibling concerned and not pe->primary_pe->snap->lock unless
+ * they are the same.
+ */
+ atomic_t sibling_count;
/* Pointer back to snapshot context */
struct dm_snapshot *snap;
@@ -377,6 +392,8 @@ static void read_snapshot_metadata(struct dm_snapshot *s)
down_write(&s->lock);
s->valid = 0;
up_write(&s->lock);
+
+ dm_table_event(s->table);
}
}
@@ -542,8 +559,12 @@ static void snapshot_dtr(struct dm_target *ti)
{
struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
+ /* Prevent further origin writes from using this snapshot. */
+ /* After this returns there can be no new kcopyd jobs. */
unregister_snapshot(s);
+ kcopyd_client_destroy(s->kcopyd_client);
+
exit_exception_table(&s->pending, pending_cache);
exit_exception_table(&s->complete, exception_cache);
@@ -552,7 +573,7 @@ static void snapshot_dtr(struct dm_target *ti)
dm_put_device(ti, s->origin);
dm_put_device(ti, s->cow);
- kcopyd_client_destroy(s->kcopyd_client);
+
kfree(s);
}
@@ -586,78 +607,117 @@ static void error_bios(struct bio *bio)
}
}
+static inline void error_snapshot_bios(struct pending_exception *pe)
+{
+ error_bios(bio_list_get(&pe->snapshot_bios));
+}
+
static struct bio *__flush_bios(struct pending_exception *pe)
{
- struct pending_exception *sibling;
+ /*
+ * If this pe is involved in a write to the origin and
+ * it is the last sibling to complete then release
+ * the bios for the original write to the origin.
+ */
+
+ if (pe->primary_pe &&
+ atomic_dec_and_test(&pe->primary_pe->sibling_count))
+ return bio_list_get(&pe->primary_pe->origin_bios);
+
+ return NULL;
+}
+
+static void __invalidate_snapshot(struct dm_snapshot *s,
+ struct pending_exception *pe, int err)
+{
+ if (!s->valid)
+ return;
- if (list_empty(&pe->siblings))
- return bio_list_get(&pe->origin_bios);
+ if (err == -EIO)
+ DMERR("Invalidating snapshot: Error reading/writing.");
+ else if (err == -ENOMEM)
+ DMERR("Invalidating snapshot: Unable to allocate exception.");
- sibling = list_entry(pe->siblings.next,
- struct pending_exception, siblings);
+ if (pe)
+ remove_exception(&pe->e);
- list_del(&pe->siblings);
+ if (s->store.drop_snapshot)
+ s->store.drop_snapshot(&s->store);
- /* This is fine as long as kcopyd is single-threaded. If kcopyd
- * becomes multi-threaded, we'll need some locking here.
- */
- bio_list_merge(&sibling->origin_bios, &pe->origin_bios);
+ s->valid = 0;
- return NULL;
+ dm_table_event(s->table);
}
static void pending_complete(struct pending_exception *pe, int success)
{
struct exception *e;
+ struct pending_exception *primary_pe;
struct dm_snapshot *s = pe->snap;
struct bio *flush = NULL;
- if (success) {
- e = alloc_exception();
- if (!e) {
- DMWARN("Unable to allocate exception.");
- down_write(&s->lock);
- s->store.drop_snapshot(&s->store);
- s->valid = 0;
- flush = __flush_bios(pe);
- up_write(&s->lock);
-
- error_bios(bio_list_get(&pe->snapshot_bios));
- goto out;
- }
- *e = pe->e;
-
- /*
- * Add a proper exception, and remove the
- * in-flight exception from the list.
- */
+ if (!success) {
+ /* Read/write error - snapshot is unusable */
down_write(&s->lock);
- insert_exception(&s->complete, e);
- remove_exception(&pe->e);
+ __invalidate_snapshot(s, pe, -EIO);
flush = __flush_bios(pe);
-
- /* Submit any pending write bios */
up_write(&s->lock);
- flush_bios(bio_list_get(&pe->snapshot_bios));
- } else {
- /* Read/write error - snapshot is unusable */
+ error_snapshot_bios(pe);
+ goto out;
+ }
+
+ e = alloc_exception();
+ if (!e) {
down_write(&s->lock);
- if (s->valid)
- DMERR("Error reading/writing snapshot");
- s->store.drop_snapshot(&s->store);
- s->valid = 0;
- remove_exception(&pe->e);
+ __invalidate_snapshot(s, pe, -ENOMEM);
flush = __flush_bios(pe);
up_write(&s->lock);
- error_bios(bio_list_get(&pe->snapshot_bios));
+ error_snapshot_bios(pe);
+ goto out;
+ }
+ *e = pe->e;
- dm_table_event(s->table);
+ /*
+ * Add a proper exception, and remove the
+ * in-flight exception from the list.
+ */
+ down_write(&s->lock);
+ if (!s->valid) {
+ flush = __flush_bios(pe);
+ up_write(&s->lock);
+
+ free_exception(e);
+
+ error_snapshot_bios(pe);
+ goto out;
}
+ insert_exception(&s->complete, e);
+ remove_exception(&pe->e);
+ flush = __flush_bios(pe);
+
+ up_write(&s->lock);
+
+ /* Submit any pending write bios */
+ flush_bios(bio_list_get(&pe->snapshot_bios));
+
out:
- free_pending_exception(pe);
+ primary_pe = pe->primary_pe;
+
+ /*
+ * Free the pe if it's not linked to an origin write or if
+ * it's not itself a primary pe.
+ */
+ if (!primary_pe || primary_pe != pe)
+ free_pending_exception(pe);
+
+ /*
+ * Free the primary pe if nothing references it.
+ */
+ if (primary_pe && !atomic_read(&primary_pe->sibling_count))
+ free_pending_exception(primary_pe);
if (flush)
flush_bios(flush);
@@ -734,38 +794,45 @@ __find_pending_exception(struct dm_snapshot *s, struct bio *bio)
if (e) {
/* cast the exception to a pending exception */
pe = container_of(e, struct pending_exception, e);
+ goto out;
+ }
- } else {
- /*
- * Create a new pending exception, we don't want
- * to hold the lock while we do this.
- */
- up_write(&s->lock);
- pe = alloc_pending_exception();
- down_write(&s->lock);
+ /*
+ * Create a new pending exception, we don't want
+ * to hold the lock while we do this.
+ */
+ up_write(&s->lock);
+ pe = alloc_pending_exception();
+ down_write(&s->lock);
- e = lookup_exception(&s->pending, chunk);
- if (e) {
- free_pending_exception(pe);
- pe = container_of(e, struct pending_exception, e);
- } else {
- pe->e.old_chunk = chunk;
- bio_list_init(&pe->origin_bios);
- bio_list_init(&pe->snapshot_bios);
- INIT_LIST_HEAD(&pe->siblings);
- pe->snap = s;
- pe->started = 0;
-
- if (s->store.prepare_exception(&s->store, &pe->e)) {
- free_pending_exception(pe);
- s->valid = 0;
- return NULL;
- }
+ if (!s->valid) {
+ free_pending_exception(pe);
+ return NULL;
+ }
- insert_exception(&s->pending, &pe->e);
- }
+ e = lookup_exception(&s->pending, chunk);
+ if (e) {
+ free_pending_exception(pe);
+ pe = container_of(e, struct pending_exception, e);
+ goto out;
+ }
+
+ pe->e.old_chunk = chunk;
+ bio_list_init(&pe->origin_bios);
+ bio_list_init(&pe->snapshot_bios);
+ pe->primary_pe = NULL;
+ atomic_set(&pe->sibling_count, 1);
+ pe->snap = s;
+ pe->started = 0;
+
+ if (s->store.prepare_exception(&s->store, &pe->e)) {
+ free_pending_exception(pe);
+ return NULL;
}
+ insert_exception(&s->pending, &pe->e);
+
+ out:
return pe;
}
@@ -782,13 +849,15 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio,
{
struct exception *e;
struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
+ int copy_needed = 0;
int r = 1;
chunk_t chunk;
- struct pending_exception *pe;
+ struct pending_exception *pe = NULL;
chunk = sector_to_chunk(s, bio->bi_sector);
/* Full snapshots are not usable */
+ /* To get here the table must be live so s->active is always set. */
if (!s->valid)
return -EIO;
@@ -806,36 +875,41 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio,
* to copy an exception */
down_write(&s->lock);
+ if (!s->valid) {
+ r = -EIO;
+ goto out_unlock;
+ }
+
/* If the block is already remapped - use that, else remap it */
e = lookup_exception(&s->complete, chunk);
if (e) {
remap_exception(s, e, bio);
- up_write(&s->lock);
-
- } else {
- pe = __find_pending_exception(s, bio);
-
- if (!pe) {
- if (s->store.drop_snapshot)
- s->store.drop_snapshot(&s->store);
- s->valid = 0;
- r = -EIO;
- up_write(&s->lock);
- } else {
- remap_exception(s, &pe->e, bio);
- bio_list_add(&pe->snapshot_bios, bio);
-
- if (!pe->started) {
- /* this is protected by snap->lock */
- pe->started = 1;
- up_write(&s->lock);
- start_copy(pe);
- } else
- up_write(&s->lock);
- r = 0;
- }
+ goto out_unlock;
+ }
+
+ pe = __find_pending_exception(s, bio);
+ if (!pe) {
+ __invalidate_snapshot(s, pe, -ENOMEM);
+ r = -EIO;
+ goto out_unlock;
+ }
+
+ remap_exception(s, &pe->e, bio);
+ bio_list_add(&pe->snapshot_bios, bio);
+
+ if (!pe->started) {
+ /* this is protected by snap->lock */
+ pe->started = 1;
+ copy_needed = 1;
}
+ r = 0;
+
+ out_unlock:
+ up_write(&s->lock);
+
+ if (copy_needed)
+ start_copy(pe);
} else {
/*
* FIXME: this read path scares me because we
@@ -847,6 +921,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio,
/* Do reads */
down_read(&s->lock);
+ if (!s->valid) {
+ up_read(&s->lock);
+ return -EIO;
+ }
+
/* See if it it has been remapped */
e = lookup_exception(&s->complete, chunk);
if (e)
@@ -884,9 +963,9 @@ static int snapshot_status(struct dm_target *ti, status_type_t type,
snap->store.fraction_full(&snap->store,
&numerator,
&denominator);
- snprintf(result, maxlen,
- SECTOR_FORMAT "/" SECTOR_FORMAT,
- numerator, denominator);
+ snprintf(result, maxlen, "%llu/%llu",
+ (unsigned long long)numerator,
+ (unsigned long long)denominator);
}
else
snprintf(result, maxlen, "Unknown");
@@ -899,9 +978,10 @@ static int snapshot_status(struct dm_target *ti, status_type_t type,
* to make private copies if the output is to
* make sense.
*/
- snprintf(result, maxlen, "%s %s %c " SECTOR_FORMAT,
+ snprintf(result, maxlen, "%s %s %c %llu",
snap->origin->name, snap->cow->name,
- snap->type, snap->chunk_size);
+ snap->type,
+ (unsigned long long)snap->chunk_size);
break;
}
@@ -911,40 +991,27 @@ static int snapshot_status(struct dm_target *ti, status_type_t type,
/*-----------------------------------------------------------------
* Origin methods
*---------------------------------------------------------------*/
-static void list_merge(struct list_head *l1, struct list_head *l2)
-{
- struct list_head *l1_n, *l2_p;
-
- l1_n = l1->next;
- l2_p = l2->prev;
-
- l1->next = l2;
- l2->prev = l1;
-
- l2_p->next = l1_n;
- l1_n->prev = l2_p;
-}
-
static int __origin_write(struct list_head *snapshots, struct bio *bio)
{
- int r = 1, first = 1;
+ int r = 1, first = 0;
struct dm_snapshot *snap;
struct exception *e;
- struct pending_exception *pe, *last = NULL;
+ struct pending_exception *pe, *next_pe, *primary_pe = NULL;
chunk_t chunk;
+ LIST_HEAD(pe_queue);
/* Do all the snapshots on this origin */
list_for_each_entry (snap, snapshots, list) {
+ down_write(&snap->lock);
+
/* Only deal with valid and active snapshots */
if (!snap->valid || !snap->active)
- continue;
+ goto next_snapshot;
/* Nothing to do if writing beyond end of snapshot */
if (bio->bi_sector >= dm_table_get_size(snap->table))
- continue;
-
- down_write(&snap->lock);
+ goto next_snapshot;
/*
* Remember, different snapshots can have
@@ -956,49 +1023,75 @@ static int __origin_write(struct list_head *snapshots, struct bio *bio)
* Check exception table to see if block
* is already remapped in this snapshot
* and trigger an exception if not.
+ *
+ * sibling_count is initialised to 1 so pending_complete()
+ * won't destroy the primary_pe while we're inside this loop.
*/
e = lookup_exception(&snap->complete, chunk);
- if (!e) {
- pe = __find_pending_exception(snap, bio);
- if (!pe) {
- snap->store.drop_snapshot(&snap->store);
- snap->valid = 0;
-
- } else {
- if (last)
- list_merge(&pe->siblings,
- &last->siblings);
-
- last = pe;
- r = 0;
+ if (e)
+ goto next_snapshot;
+
+ pe = __find_pending_exception(snap, bio);
+ if (!pe) {
+ __invalidate_snapshot(snap, pe, ENOMEM);
+ goto next_snapshot;
+ }
+
+ if (!primary_pe) {
+ /*
+ * Either every pe here has same
+ * primary_pe or none has one yet.
+ */
+ if (pe->primary_pe)
+ primary_pe = pe->primary_pe;
+ else {
+ primary_pe = pe;
+ first = 1;
}
+
+ bio_list_add(&primary_pe->origin_bios, bio);
+
+ r = 0;
+ }
+
+ if (!pe->primary_pe) {
+ atomic_inc(&primary_pe->sibling_count);
+ pe->primary_pe = primary_pe;
+ }
+
+ if (!pe->started) {
+ pe->started = 1;
+ list_add_tail(&pe->list, &pe_queue);
}
+ next_snapshot:
up_write(&snap->lock);
}
+ if (!primary_pe)
+ goto out;
+
/*
- * Now that we have a complete pe list we can start the copying.
+ * If this is the first time we're processing this chunk and
+ * sibling_count is now 1 it means all the pending exceptions
+ * got completed while we were in the loop above, so it falls to
+ * us here to remove the primary_pe and submit any origin_bios.
*/
- if (last) {
- pe = last;
- do {
- down_write(&pe->snap->lock);
- if (first)
- bio_list_add(&pe->origin_bios, bio);
- if (!pe->started) {
- pe->started = 1;
- up_write(&pe->snap->lock);
- start_copy(pe);
- } else
- up_write(&pe->snap->lock);
- first = 0;
- pe = list_entry(pe->siblings.next,
- struct pending_exception, siblings);
-
- } while (pe != last);
+
+ if (first && atomic_dec_and_test(&primary_pe->sibling_count)) {
+ flush_bios(bio_list_get(&primary_pe->origin_bios));
+ free_pending_exception(primary_pe);
+ /* If we got here, pe_queue is necessarily empty. */
+ goto out;
}
+ /*
+ * Now that we have a complete pe list we can start the copying.
+ */
+ list_for_each_entry_safe(pe, next_pe, &pe_queue, list)
+ start_copy(pe);
+
+ out:
return r;
}
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 697aacafb02..08328a8f5a3 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -49,9 +49,9 @@ static inline struct stripe_c *alloc_context(unsigned int stripes)
static int get_stripe(struct dm_target *ti, struct stripe_c *sc,
unsigned int stripe, char **argv)
{
- sector_t start;
+ unsigned long long start;
- if (sscanf(argv[1], SECTOR_FORMAT, &start) != 1)
+ if (sscanf(argv[1], "%llu", &start) != 1)
return -EINVAL;
if (dm_get_device(ti, argv[0], start, sc->stripe_width,
@@ -103,7 +103,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
return -EINVAL;
}
- if (((uint32_t)ti->len) & (chunk_size - 1)) {
+ if (ti->len & (chunk_size - 1)) {
ti->error = "dm-stripe: Target length not divisible by "
"chunk size";
return -EINVAL;
@@ -201,10 +201,11 @@ static int stripe_status(struct dm_target *ti,
break;
case STATUSTYPE_TABLE:
- DMEMIT("%d " SECTOR_FORMAT, sc->stripes, sc->chunk_mask + 1);
+ DMEMIT("%d %llu", sc->stripes,
+ (unsigned long long)sc->chunk_mask + 1);
for (i = 0; i < sc->stripes; i++)
- DMEMIT(" %s " SECTOR_FORMAT, sc->stripe[i].dev->name,
- sc->stripe[i].physical_start);
+ DMEMIT(" %s %llu", sc->stripe[i].dev->name,
+ (unsigned long long)sc->stripe[i].physical_start);
break;
}
return 0;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 907b08ddb78..8f56a54cf0c 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -14,6 +14,7 @@
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/mutex.h>
#include <asm/atomic.h>
#define MAX_DEPTH 16
@@ -22,6 +23,7 @@
#define CHILDREN_PER_NODE (KEYS_PER_NODE + 1)
struct dm_table {
+ struct mapped_device *md;
atomic_t holders;
/* btree table */
@@ -97,6 +99,8 @@ static void combine_restrictions_low(struct io_restrictions *lhs,
lhs->seg_boundary_mask =
min_not_zero(lhs->seg_boundary_mask, rhs->seg_boundary_mask);
+
+ lhs->no_cluster |= rhs->no_cluster;
}
/*
@@ -204,7 +208,8 @@ static int alloc_targets(struct dm_table *t, unsigned int num)
return 0;
}
-int dm_table_create(struct dm_table **result, int mode, unsigned num_targets)
+int dm_table_create(struct dm_table **result, int mode,
+ unsigned num_targets, struct mapped_device *md)
{
struct dm_table *t = kmalloc(sizeof(*t), GFP_KERNEL);
@@ -227,6 +232,7 @@ int dm_table_create(struct dm_table **result, int mode, unsigned num_targets)
}
t->mode = mode;
+ t->md = md;
*result = t;
return 0;
}
@@ -345,7 +351,7 @@ static struct dm_dev *find_device(struct list_head *l, dev_t dev)
/*
* Open a device so we can use it as a map destination.
*/
-static int open_dev(struct dm_dev *d, dev_t dev)
+static int open_dev(struct dm_dev *d, dev_t dev, struct mapped_device *md)
{
static char *_claim_ptr = "I belong to device-mapper";
struct block_device *bdev;
@@ -357,7 +363,7 @@ static int open_dev(struct dm_dev *d, dev_t dev)
bdev = open_by_devnum(dev, d->mode);
if (IS_ERR(bdev))
return PTR_ERR(bdev);
- r = bd_claim(bdev, _claim_ptr);
+ r = bd_claim_by_disk(bdev, _claim_ptr, dm_disk(md));
if (r)
blkdev_put(bdev);
else
@@ -368,12 +374,12 @@ static int open_dev(struct dm_dev *d, dev_t dev)
/*
* Close a device that we've been using.
*/
-static void close_dev(struct dm_dev *d)
+static void close_dev(struct dm_dev *d, struct mapped_device *md)
{
if (!d->bdev)
return;
- bd_release(d->bdev);
+ bd_release_from_disk(d->bdev, dm_disk(md));
blkdev_put(d->bdev);
d->bdev = NULL;
}
@@ -394,7 +400,7 @@ static int check_device_area(struct dm_dev *dd, sector_t start, sector_t len)
* careful to leave things as they were if we fail to reopen the
* device.
*/
-static int upgrade_mode(struct dm_dev *dd, int new_mode)
+static int upgrade_mode(struct dm_dev *dd, int new_mode, struct mapped_device *md)
{
int r;
struct dm_dev dd_copy;
@@ -404,9 +410,9 @@ static int upgrade_mode(struct dm_dev *dd, int new_mode)
dd->mode |= new_mode;
dd->bdev = NULL;
- r = open_dev(dd, dev);
+ r = open_dev(dd, dev, md);
if (!r)
- close_dev(&dd_copy);
+ close_dev(&dd_copy, md);
else
*dd = dd_copy;
@@ -448,7 +454,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti,
dd->mode = mode;
dd->bdev = NULL;
- if ((r = open_dev(dd, dev))) {
+ if ((r = open_dev(dd, dev, t->md))) {
kfree(dd);
return r;
}
@@ -459,7 +465,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti,
list_add(&dd->list, &t->devices);
} else if (dd->mode != (mode | dd->mode)) {
- r = upgrade_mode(dd, mode);
+ r = upgrade_mode(dd, mode, t->md);
if (r)
return r;
}
@@ -523,6 +529,8 @@ int dm_get_device(struct dm_target *ti, const char *path, sector_t start,
rs->seg_boundary_mask =
min_not_zero(rs->seg_boundary_mask,
q->seg_boundary_mask);
+
+ rs->no_cluster |= !test_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags);
}
return r;
@@ -534,7 +542,7 @@ int dm_get_device(struct dm_target *ti, const char *path, sector_t start,
void dm_put_device(struct dm_target *ti, struct dm_dev *dd)
{
if (atomic_dec_and_test(&dd->count)) {
- close_dev(dd);
+ close_dev(dd, ti->table->md);
list_del(&dd->list);
kfree(dd);
}
@@ -763,14 +771,14 @@ int dm_table_complete(struct dm_table *t)
return r;
}
-static DECLARE_MUTEX(_event_lock);
+static DEFINE_MUTEX(_event_lock);
void dm_table_event_callback(struct dm_table *t,
void (*fn)(void *), void *context)
{
- down(&_event_lock);
+ mutex_lock(&_event_lock);
t->event_fn = fn;
t->event_context = context;
- up(&_event_lock);
+ mutex_unlock(&_event_lock);
}
void dm_table_event(struct dm_table *t)
@@ -781,10 +789,10 @@ void dm_table_event(struct dm_table *t)
*/
BUG_ON(in_interrupt());
- down(&_event_lock);
+ mutex_lock(&_event_lock);
if (t->event_fn)
t->event_fn(t->event_context);
- up(&_event_lock);
+ mutex_unlock(&_event_lock);
}
sector_t dm_table_get_size(struct dm_table *t)
@@ -832,6 +840,11 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q)
q->hardsect_size = t->limits.hardsect_size;
q->max_segment_size = t->limits.max_segment_size;
q->seg_boundary_mask = t->limits.seg_boundary_mask;
+ if (t->limits.no_cluster)
+ q->queue_flags &= ~(1 << QUEUE_FLAG_CLUSTER);
+ else
+ q->queue_flags |= (1 << QUEUE_FLAG_CLUSTER);
+
}
unsigned int dm_table_get_num_targets(struct dm_table *t)
@@ -943,12 +956,20 @@ int dm_table_flush_all(struct dm_table *t)
return ret;
}
+struct mapped_device *dm_table_get_md(struct dm_table *t)
+{
+ dm_get(t->md);
+
+ return t->md;
+}
+
EXPORT_SYMBOL(dm_vcalloc);
EXPORT_SYMBOL(dm_get_device);
EXPORT_SYMBOL(dm_put_device);
EXPORT_SYMBOL(dm_table_event);
EXPORT_SYMBOL(dm_table_get_size);
EXPORT_SYMBOL(dm_table_get_mode);
+EXPORT_SYMBOL(dm_table_get_md);
EXPORT_SYMBOL(dm_table_put);
EXPORT_SYMBOL(dm_table_get);
EXPORT_SYMBOL(dm_table_unplug_all);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index a64798ef481..4d710b7a133 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <linux/moduleparam.h>
#include <linux/blkpg.h>
#include <linux/bio.h>
@@ -17,6 +18,7 @@
#include <linux/mempool.h>
#include <linux/slab.h>
#include <linux/idr.h>
+#include <linux/hdreg.h>
#include <linux/blktrace_api.h>
static const char *_name = DM_NAME;
@@ -69,6 +71,7 @@ struct mapped_device {
request_queue_t *queue;
struct gendisk *disk;
+ char name[16];
void *interface_ptr;
@@ -101,6 +104,9 @@ struct mapped_device {
*/
struct super_block *frozen_sb;
struct block_device *suspended_bdev;
+
+ /* forced geometry settings */
+ struct hd_geometry geometry;
};
#define MIN_IOS 256
@@ -226,6 +232,13 @@ static int dm_blk_close(struct inode *inode, struct file *file)
return 0;
}
+static int dm_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+ struct mapped_device *md = bdev->bd_disk->private_data;
+
+ return dm_get_geometry(md, geo);
+}
+
static inline struct dm_io *alloc_io(struct mapped_device *md)
{
return mempool_alloc(md->io_pool, GFP_NOIO);
@@ -312,6 +325,33 @@ struct dm_table *dm_get_table(struct mapped_device *md)
return t;
}
+/*
+ * Get the geometry associated with a dm device
+ */
+int dm_get_geometry(struct mapped_device *md, struct hd_geometry *geo)
+{
+ *geo = md->geometry;
+
+ return 0;
+}
+
+/*
+ * Set the geometry of a device.
+ */
+int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo)
+{
+ sector_t sz = (sector_t)geo->cylinders * geo->heads * geo->sectors;
+
+ if (geo->start > sz) {
+ DMWARN("Start sector is beyond the geometry limits.");
+ return -EINVAL;
+ }
+
+ md->geometry = *geo;
+
+ return 0;
+}
+
/*-----------------------------------------------------------------
* CRUD START:
* A more elegant soln is in the works that uses the queue
@@ -704,14 +744,14 @@ static int dm_any_congested(void *congested_data, int bdi_bits)
/*-----------------------------------------------------------------
* An IDR is used to keep track of allocated minor numbers.
*---------------------------------------------------------------*/
-static DECLARE_MUTEX(_minor_lock);
+static DEFINE_MUTEX(_minor_lock);
static DEFINE_IDR(_minor_idr);
static void free_minor(unsigned int minor)
{
- down(&_minor_lock);
+ mutex_lock(&_minor_lock);
idr_remove(&_minor_idr, minor);
- up(&_minor_lock);
+ mutex_unlock(&_minor_lock);
}
/*
@@ -724,7 +764,7 @@ static int specific_minor(struct mapped_device *md, unsigned int minor)
if (minor >= (1 << MINORBITS))
return -EINVAL;
- down(&_minor_lock);
+ mutex_lock(&_minor_lock);
if (idr_find(&_minor_idr, minor)) {
r = -EBUSY;
@@ -749,7 +789,7 @@ static int specific_minor(struct mapped_device *md, unsigned int minor)
}
out:
- up(&_minor_lock);
+ mutex_unlock(&_minor_lock);
return r;
}
@@ -758,7 +798,7 @@ static int next_free_minor(struct mapped_device *md, unsigned int *minor)
int r;
unsigned int m;
- down(&_minor_lock);
+ mutex_lock(&_minor_lock);
r = idr_pre_get(&_minor_idr, GFP_KERNEL);
if (!r) {
@@ -780,7 +820,7 @@ static int next_free_minor(struct mapped_device *md, unsigned int *minor)
*minor = m;
out:
- up(&_minor_lock);
+ mutex_unlock(&_minor_lock);
return r;
}
@@ -842,6 +882,7 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
md->disk->private_data = md;
sprintf(md->disk->disk_name, "dm-%d", minor);
add_disk(md->disk);
+ format_dev_t(md->name, MKDEV(_major, minor));
atomic_set(&md->pending, 0);
init_waitqueue_head(&md->wait);
@@ -904,6 +945,13 @@ static int __bind(struct mapped_device *md, struct dm_table *t)
sector_t size;
size = dm_table_get_size(t);
+
+ /*
+ * Wipe any geometry if the size of the table changed.
+ */
+ if (size != get_capacity(md->disk))
+ memset(&md->geometry, 0, sizeof(md->geometry));
+
__set_size(md, size);
if (size == 0)
return 0;
@@ -967,13 +1015,13 @@ static struct mapped_device *dm_find_md(dev_t dev)
if (MAJOR(dev) != _major || minor >= (1 << MINORBITS))
return NULL;
- down(&_minor_lock);
+ mutex_lock(&_minor_lock);
md = idr_find(&_minor_idr, minor);
if (!md || (dm_disk(md)->first_minor != minor))
md = NULL;
- up(&_minor_lock);
+ mutex_unlock(&_minor_lock);
return md;
}
@@ -988,15 +1036,9 @@ struct mapped_device *dm_get_md(dev_t dev)
return md;
}
-void *dm_get_mdptr(dev_t dev)
+void *dm_get_mdptr(struct mapped_device *md)
{
- struct mapped_device *md;
- void *mdptr = NULL;
-
- md = dm_find_md(dev);
- if (md)
- mdptr = md->interface_ptr;
- return mdptr;
+ return md->interface_ptr;
}
void dm_set_mdptr(struct mapped_device *md, void *ptr)
@@ -1011,18 +1053,18 @@ void dm_get(struct mapped_device *md)
void dm_put(struct mapped_device *md)
{
- struct dm_table *map = dm_get_table(md);
+ struct dm_table *map;
if (atomic_dec_and_test(&md->holders)) {
+ map = dm_get_table(md);
if (!dm_suspended(md)) {
dm_table_presuspend_targets(map);
dm_table_postsuspend_targets(map);
}
__unbind(md);
+ dm_table_put(map);
free_dev(md);
}
-
- dm_table_put(map);
}
/*
@@ -1107,6 +1149,7 @@ int dm_suspend(struct mapped_device *md, int do_lockfs)
{
struct dm_table *map = NULL;
DECLARE_WAITQUEUE(wait, current);
+ struct bio *def;
int r = -EINVAL;
down(&md->suspend_lock);
@@ -1166,9 +1209,11 @@ int dm_suspend(struct mapped_device *md, int do_lockfs)
/* were we interrupted ? */
r = -EINTR;
if (atomic_read(&md->pending)) {
+ clear_bit(DMF_BLOCK_IO, &md->flags);
+ def = bio_list_get(&md->deferred);
+ __flush_deferred_io(md, def);
up_write(&md->io_lock);
unlock_fs(md);
- clear_bit(DMF_BLOCK_IO, &md->flags);
goto out;
}
up_write(&md->io_lock);
@@ -1262,6 +1307,7 @@ int dm_suspended(struct mapped_device *md)
static struct block_device_operations dm_blk_dops = {
.open = dm_blk_open,
.release = dm_blk_close,
+ .getgeo = dm_blk_getgeo,
.owner = THIS_MODULE
};
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 4eaf075da21..fd90bc8f9e4 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -14,6 +14,7 @@
#include <linux/device-mapper.h>
#include <linux/list.h>
#include <linux/blkdev.h>
+#include <linux/hdreg.h>
#define DM_NAME "device-mapper"
#define DMWARN(f, x...) printk(KERN_WARNING DM_NAME ": " f "\n" , ## x)
@@ -23,16 +24,6 @@
#define DMEMIT(x...) sz += ((sz >= maxlen) ? \
0 : scnprintf(result + sz, maxlen - sz, x))
-/*
- * FIXME: I think this should be with the definition of sector_t
- * in types.h.
- */
-#ifdef CONFIG_LBD
-#define SECTOR_FORMAT "%llu"
-#else
-#define SECTOR_FORMAT "%lu"
-#endif
-
#define SECTOR_SHIFT 9
/*
@@ -57,7 +48,7 @@ struct mapped_device;
int dm_create(struct mapped_device **md);
int dm_create_with_minor(unsigned int minor, struct mapped_device **md);
void dm_set_mdptr(struct mapped_device *md, void *ptr);
-void *dm_get_mdptr(dev_t dev);
+void *dm_get_mdptr(struct mapped_device *md);
struct mapped_device *dm_get_md(dev_t dev);
/*
@@ -95,11 +86,18 @@ int dm_wait_event(struct mapped_device *md, int event_nr);
struct gendisk *dm_disk(struct mapped_device *md);
int dm_suspended(struct mapped_device *md);
+/*
+ * Geometry functions.
+ */
+int dm_get_geometry(struct mapped_device *md, struct hd_geometry *geo);
+int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo);
+
/*-----------------------------------------------------------------
* Functions for manipulating a table. Tables are also reference
* counted.
*---------------------------------------------------------------*/
-int dm_table_create(struct dm_table **result, int mode, unsigned num_targets);
+int dm_table_create(struct dm_table **result, int mode,
+ unsigned num_targets, struct mapped_device *md);
void dm_table_get(struct dm_table *t);
void dm_table_put(struct dm_table *t);
@@ -117,6 +115,7 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q);
unsigned int dm_table_get_num_targets(struct dm_table *t);
struct list_head *dm_table_get_devices(struct dm_table *t);
int dm_table_get_mode(struct dm_table *t);
+struct mapped_device *dm_table_get_md(struct dm_table *t);
void dm_table_presuspend_targets(struct dm_table *t);
void dm_table_postsuspend_targets(struct dm_table *t);
void dm_table_resume_targets(struct dm_table *t);
diff --git a/drivers/md/kcopyd.c b/drivers/md/kcopyd.c
index 9dcb2c8a385..72480a48d88 100644
--- a/drivers/md/kcopyd.c
+++ b/drivers/md/kcopyd.c
@@ -22,6 +22,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
+#include <linux/mutex.h>
#include "kcopyd.h"
@@ -44,6 +45,9 @@ struct kcopyd_client {
struct page_list *pages;
unsigned int nr_pages;
unsigned int nr_free_pages;
+
+ wait_queue_head_t destroyq;
+ atomic_t nr_jobs;
};
static struct page_list *alloc_pl(void)
@@ -292,10 +296,15 @@ static int run_complete_job(struct kcopyd_job *job)
int read_err = job->read_err;
unsigned int write_err = job->write_err;
kcopyd_notify_fn fn = job->fn;
+ struct kcopyd_client *kc = job->kc;
- kcopyd_put_pages(job->kc, job->pages);
+ kcopyd_put_pages(kc, job->pages);
mempool_free(job, _job_pool);
fn(read_err, write_err, context);
+
+ if (atomic_dec_and_test(&kc->nr_jobs))
+ wake_up(&kc->destroyq);
+
return 0;
}
@@ -430,6 +439,7 @@ static void do_work(void *ignored)
*/
static void dispatch_job(struct kcopyd_job *job)
{
+ atomic_inc(&job->kc->nr_jobs);
push(&_pages_jobs, job);
wake();
}
@@ -572,21 +582,21 @@ int kcopyd_cancel(struct kcopyd_job *job, int block)
/*-----------------------------------------------------------------
* Unit setup
*---------------------------------------------------------------*/
-static DECLARE_MUTEX(_client_lock);
+static DEFINE_MUTEX(_client_lock);
static LIST_HEAD(_clients);
static void client_add(struct kcopyd_client *kc)
{
- down(&_client_lock);
+ mutex_lock(&_client_lock);
list_add(&kc->list, &_clients);
- up(&_client_lock);
+ mutex_unlock(&_client_lock);
}
static void client_del(struct kcopyd_client *kc)
{
- down(&_client_lock);
+ mutex_lock(&_client_lock);
list_del(&kc->list);
- up(&_client_lock);
+ mutex_unlock(&_client_lock);
}
static DEFINE_MUTEX(kcopyd_init_lock);
@@ -669,6 +679,9 @@ int kcopyd_client_create(unsigned int nr_pages, struct kcopyd_client **result)
return r;
}
+ init_waitqueue_head(&kc->destroyq);
+ atomic_set(&kc->nr_jobs, 0);
+
client_add(kc);
*result = kc;
return 0;
@@ -676,6 +689,9 @@ int kcopyd_client_create(unsigned int nr_pages, struct kcopyd_client **result)
void kcopyd_client_destroy(struct kcopyd_client *kc)
{
+ /* Wait for completion of all jobs submitted by this client. */
+ wait_event(kc->destroyq, !atomic_read(&kc->nr_jobs));
+
dm_io_put(kc->nr_pages);
client_free_pages(kc);
client_del(kc);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 5ed2228745c..039e071c100 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -43,6 +43,7 @@
#include <linux/buffer_head.h> /* for invalidate_bdev */
#include <linux/suspend.h>
#include <linux/poll.h>
+#include <linux/mutex.h>
#include <linux/init.h>
@@ -158,11 +159,12 @@ static int start_readonly;
*/
static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
static atomic_t md_event_count;
-static void md_new_event(mddev_t *mddev)
+void md_new_event(mddev_t *mddev)
{
atomic_inc(&md_event_count);
wake_up(&md_event_waiters);
}
+EXPORT_SYMBOL_GPL(md_new_event);
/*
* Enables to iterate over all existing md arrays
@@ -253,7 +255,7 @@ static mddev_t * mddev_find(dev_t unit)
else
new->md_minor = MINOR(unit) >> MdpMinorShift;
- init_MUTEX(&new->reconfig_sem);
+ mutex_init(&new->reconfig_mutex);
INIT_LIST_HEAD(&new->disks);
INIT_LIST_HEAD(&new->all_mddevs);
init_timer(&new->safemode_timer);
@@ -266,6 +268,7 @@ static mddev_t * mddev_find(dev_t unit)
kfree(new);
return NULL;
}
+ set_bit(QUEUE_FLAG_CLUSTER, &new->queue->queue_flags);
blk_queue_make_request(new->queue, md_fail_request);
@@ -274,22 +277,22 @@ static mddev_t * mddev_find(dev_t unit)
static inline int mddev_lock(mddev_t * mddev)
{
- return down_interruptible(&mddev->reconfig_sem);
+ return mutex_lock_interruptible(&mddev->reconfig_mutex);
}
static inline void mddev_lock_uninterruptible(mddev_t * mddev)
{
- down(&mddev->reconfig_sem);
+ mutex_lock(&mddev->reconfig_mutex);
}
static inline int mddev_trylock(mddev_t * mddev)
{
- return down_trylock(&mddev->reconfig_sem);
+ return mutex_trylock(&mddev->reconfig_mutex);
}
static inline void mddev_unlock(mddev_t * mddev)
{
- up(&mddev->reconfig_sem);
+ mutex_unlock(&mddev->reconfig_mutex);
md_wakeup_thread(mddev->thread);
}
@@ -660,7 +663,8 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
}
if (sb->major_version != 0 ||
- sb->minor_version != 90) {
+ sb->minor_version < 90 ||
+ sb->minor_version > 91) {
printk(KERN_WARNING "Bad version number %d.%d on %s\n",
sb->major_version, sb->minor_version,
b);
@@ -745,6 +749,20 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
mddev->bitmap_offset = 0;
mddev->default_bitmap_offset = MD_SB_BYTES >> 9;
+ if (mddev->minor_version >= 91) {
+ mddev->reshape_position = sb->reshape_position;
+ mddev->delta_disks = sb->delta_disks;
+ mddev->new_level = sb->new_level;
+ mddev->new_layout = sb->new_layout;
+ mddev->new_chunk = sb->new_chunk;
+ } else {
+ mddev->reshape_position = MaxSector;
+ mddev->delta_disks = 0;
+ mddev->new_level = mddev->level;
+ mddev->new_layout = mddev->layout;
+ mddev->new_chunk = mddev->chunk_size;
+ }
+
if (sb->state & (1<<MD_SB_CLEAN))
mddev->recovery_cp = MaxSector;
else {
@@ -764,7 +782,8 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
if (sb->state & (1<<MD_SB_BITMAP_PRESENT) &&
mddev->bitmap_file == NULL) {
- if (mddev->level != 1 && mddev->level != 5 && mddev->level != 6
+ if (mddev->level != 1 && mddev->level != 4
+ && mddev->level != 5 && mddev->level != 6
&& mddev->level != 10) {
/* FIXME use a better test */
printk(KERN_WARNING "md: bitmaps not supported for this level.\n");
@@ -838,7 +857,6 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->md_magic = MD_SB_MAGIC;
sb->major_version = mddev->major_version;
- sb->minor_version = mddev->minor_version;
sb->patch_version = mddev->patch_version;
sb->gvalid_words = 0; /* ignored */
memcpy(&sb->set_uuid0, mddev->uuid+0, 4);
@@ -857,6 +875,17 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->events_hi = (mddev->events>>32);
sb->events_lo = (u32)mddev->events;
+ if (mddev->reshape_position == MaxSector)
+ sb->minor_version = 90;
+ else {
+ sb->minor_version = 91;
+ sb->reshape_position = mddev->reshape_position;
+ sb->new_level = mddev->new_level;
+ sb->delta_disks = mddev->delta_disks;
+ sb->new_layout = mddev->new_layout;
+ sb->new_chunk = mddev->new_chunk;
+ }
+ mddev->minor_version = sb->minor_version;
if (mddev->in_sync)
{
sb->recovery_cp = mddev->recovery_cp;
@@ -893,10 +922,9 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev)
d->raid_disk = rdev2->raid_disk;
else
d->raid_disk = rdev2->desc_nr; /* compatibility */
- if (test_bit(Faulty, &rdev2->flags)) {
+ if (test_bit(Faulty, &rdev2->flags))
d->state = (1<<MD_DISK_FAULTY);
- failed++;
- } else if (test_bit(In_sync, &rdev2->flags)) {
+ else if (test_bit(In_sync, &rdev2->flags)) {
d->state = (1<<MD_DISK_ACTIVE);
d->state |= (1<<MD_DISK_SYNC);
active++;
@@ -1102,6 +1130,20 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
}
mddev->bitmap_offset = (__s32)le32_to_cpu(sb->bitmap_offset);
}
+ if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE)) {
+ mddev->reshape_position = le64_to_cpu(sb->reshape_position);
+ mddev->delta_disks = le32_to_cpu(sb->delta_disks);
+ mddev->new_level = le32_to_cpu(sb->new_level);
+ mddev->new_layout = le32_to_cpu(sb->new_layout);
+ mddev->new_chunk = le32_to_cpu(sb->new_chunk)<<9;
+ } else {
+ mddev->reshape_position = MaxSector;
+ mddev->delta_disks = 0;
+ mddev->new_level = mddev->level;
+ mddev->new_layout = mddev->layout;
+ mddev->new_chunk = mddev->chunk_size;
+ }
+
} else if (mddev->pers == NULL) {
/* Insist of good event counter while assembling */
__u64 ev1 = le64_to_cpu(sb->events);
@@ -1173,6 +1215,14 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_offset);
sb->feature_map = cpu_to_le32(MD_FEATURE_BITMAP_OFFSET);
}
+ if (mddev->reshape_position != MaxSector) {
+ sb->feature_map |= cpu_to_le32(MD_FEATURE_RESHAPE_ACTIVE);
+ sb->reshape_position = cpu_to_le64(mddev->reshape_position);
+ sb->new_layout = cpu_to_le32(mddev->new_layout);
+ sb->delta_disks = cpu_to_le32(mddev->delta_disks);
+ sb->new_level = cpu_to_le32(mddev->new_level);
+ sb->new_chunk = cpu_to_le32(mddev->new_chunk>>9);
+ }
max_dev = 0;
ITERATE_RDEV(mddev,rdev2,tmp)
@@ -1301,6 +1351,7 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
else
ko = &rdev->bdev->bd_disk->kobj;
sysfs_create_link(&rdev->kobj, ko, "block");
+ bd_claim_by_disk(rdev->bdev, rdev, mddev->gendisk);
return 0;
}
@@ -1311,6 +1362,7 @@ static void unbind_rdev_from_array(mdk_rdev_t * rdev)
MD_BUG();
return;
}
+ bd_release_from_disk(rdev->bdev, rdev->mddev->gendisk);
list_del_init(&rdev->same_set);
printk(KERN_INFO "md: unbind<%s>\n", bdevname(rdev->bdev,b));
rdev->mddev = NULL;
@@ -1493,7 +1545,7 @@ static void sync_sbs(mddev_t * mddev)
}
}
-static void md_update_sb(mddev_t * mddev)
+void md_update_sb(mddev_t * mddev)
{
int err;
struct list_head *tmp;
@@ -1570,6 +1622,7 @@ repeat:
wake_up(&mddev->sb_wait);
}
+EXPORT_SYMBOL_GPL(md_update_sb);
/* words written to sysfs files may, or my not, be \n terminated.
* We want to accept with case. For this we use cmd_match.
@@ -2162,7 +2215,9 @@ action_show(mddev_t *mddev, char *page)
char *type = "idle";
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) ||
test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) {
- if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
+ if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
+ type = "reshape";
+ else if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
if (!test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
type = "resync";
else if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery))
@@ -2193,7 +2248,14 @@ action_store(mddev_t *mddev, const char *page, size_t len)
return -EBUSY;
else if (cmd_match(page, "resync") || cmd_match(page, "recover"))
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- else {
+ else if (cmd_match(page, "reshape")) {
+ int err;
+ if (mddev->pers->start_reshape == NULL)
+ return -EINVAL;
+ err = mddev->pers->start_reshape(mddev);
+ if (err)
+ return err;
+ } else {
if (cmd_match(page, "check"))
set_bit(MD_RECOVERY_CHECK, &mddev->recovery);
else if (cmd_match(page, "repair"))
@@ -2304,6 +2366,63 @@ sync_completed_show(mddev_t *mddev, char *page)
static struct md_sysfs_entry
md_sync_completed = __ATTR_RO(sync_completed);
+static ssize_t
+suspend_lo_show(mddev_t *mddev, char *page)
+{
+ return sprintf(page, "%llu\n", (unsigned long long)mddev->suspend_lo);
+}
+
+static ssize_t
+suspend_lo_store(mddev_t *mddev, const char *buf, size_t len)
+{
+ char *e;
+ unsigned long long new = simple_strtoull(buf, &e, 10);
+
+ if (mddev->pers->quiesce == NULL)
+ return -EINVAL;
+ if (buf == e || (*e && *e != '\n'))
+ return -EINVAL;
+ if (new >= mddev->suspend_hi ||
+ (new > mddev->suspend_lo && new < mddev->suspend_hi)) {
+ mddev->suspend_lo = new;
+ mddev->pers->quiesce(mddev, 2);
+ return len;
+ } else
+ return -EINVAL;
+}
+static struct md_sysfs_entry md_suspend_lo =
+__ATTR(suspend_lo, S_IRUGO|S_IWUSR, suspend_lo_show, suspend_lo_store);
+
+
+static ssize_t
+suspend_hi_show(mddev_t *mddev, char *page)
+{
+ return sprintf(page, "%llu\n", (unsigned long long)mddev->suspend_hi);
+}
+
+static ssize_t
+suspend_hi_store(mddev_t *mddev, const char *buf, size_t len)
+{
+ char *e;
+ unsigned long long new = simple_strtoull(buf, &e, 10);
+
+ if (mddev->pers->quiesce == NULL)
+ return -EINVAL;
+ if (buf == e || (*e && *e != '\n'))
+ return -EINVAL;
+ if ((new <= mddev->suspend_lo && mddev->suspend_lo >= mddev->suspend_hi) ||
+ (new > mddev->suspend_lo && new > mddev->suspend_hi)) {
+ mddev->suspend_hi = new;
+ mddev->pers->quiesce(mddev, 1);
+ mddev->pers->quiesce(mddev, 0);
+ return len;
+ } else
+ return -EINVAL;
+}
+static struct md_sysfs_entry md_suspend_hi =
+__ATTR(suspend_hi, S_IRUGO|S_IWUSR, suspend_hi_show, suspend_hi_store);
+
+
static struct attribute *md_default_attrs[] = {
&md_level.attr,
&md_raid_disks.attr,
@@ -2321,6 +2440,8 @@ static struct attribute *md_redundancy_attrs[] = {
&md_sync_max.attr,
&md_sync_speed.attr,
&md_sync_completed.attr,
+ &md_suspend_lo.attr,
+ &md_suspend_hi.attr,
NULL,
};
static struct attribute_group md_redundancy_group = {
@@ -2380,7 +2501,7 @@ int mdp_major = 0;
static struct kobject *md_probe(dev_t dev, int *part, void *data)
{
- static DECLARE_MUTEX(disks_sem);
+ static DEFINE_MUTEX(disks_mutex);
mddev_t *mddev = mddev_find(dev);
struct gendisk *disk;
int partitioned = (MAJOR(dev) != MD_MAJOR);
@@ -2390,15 +2511,15 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
if (!mddev)
return NULL;
- down(&disks_sem);
+ mutex_lock(&disks_mutex);
if (mddev->gendisk) {
- up(&disks_sem);
+ mutex_unlock(&disks_mutex);
mddev_put(mddev);
return NULL;
}
disk = alloc_disk(1 << shift);
if (!disk) {
- up(&disks_sem);
+ mutex_unlock(&disks_mutex);
mddev_put(mddev);
return NULL;
}
@@ -2416,7 +2537,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
disk->queue = mddev->queue;
add_disk(disk);
mddev->gendisk = disk;
- up(&disks_sem);
+ mutex_unlock(&disks_mutex);
mddev->kobj.parent = &disk->kobj;
mddev->kobj.k_name = NULL;
snprintf(mddev->kobj.name, KOBJ_NAME_LEN, "%s", "md");
@@ -2539,6 +2660,14 @@ static int do_md_run(mddev_t * mddev)
mddev->level = pers->level;
strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel));
+ if (mddev->reshape_position != MaxSector &&
+ pers->start_reshape == NULL) {
+ /* This personality cannot handle reshaping... */
+ mddev->pers = NULL;
+ module_put(pers->owner);
+ return -EINVAL;
+ }
+
mddev->recovery = 0;
mddev->resync_max_sectors = mddev->size << 1; /* may be over-ridden by personality */
mddev->barriers_work = 1;
@@ -2772,7 +2901,6 @@ static void autorun_array(mddev_t *mddev)
*/
static void autorun_devices(int part)
{
- struct list_head candidates;
struct list_head *tmp;
mdk_rdev_t *rdev0, *rdev;
mddev_t *mddev;
@@ -2781,6 +2909,7 @@ static void autorun_devices(int part)
printk(KERN_INFO "md: autorun ...\n");
while (!list_empty(&pending_raid_disks)) {
dev_t dev;
+ LIST_HEAD(candidates);
rdev0 = list_entry(pending_raid_disks.next,
mdk_rdev_t, same_set);
@@ -3427,11 +3556,18 @@ static int set_array_info(mddev_t * mddev, mdu_array_info_t *info)
mddev->default_bitmap_offset = MD_SB_BYTES >> 9;
mddev->bitmap_offset = 0;
+ mddev->reshape_position = MaxSector;
+
/*
* Generate a 128 bit UUID
*/
get_random_bytes(mddev->uuid, 16);
+ mddev->new_level = mddev->level;
+ mddev->new_chunk = mddev->chunk_size;
+ mddev->new_layout = mddev->layout;
+ mddev->delta_disks = 0;
+
return 0;
}
@@ -3440,6 +3576,7 @@ static int update_size(mddev_t *mddev, unsigned long size)
mdk_rdev_t * rdev;
int rv;
struct list_head *tmp;
+ int fit = (size == 0);
if (mddev->pers->resize == NULL)
return -EINVAL;
@@ -3457,7 +3594,6 @@ static int update_size(mddev_t *mddev, unsigned long size)
return -EBUSY;
ITERATE_RDEV(mddev,rdev,tmp) {
sector_t avail;
- int fit = (size == 0);
if (rdev->sb_offset > rdev->data_offset)
avail = (rdev->sb_offset*2) - rdev->data_offset;
else
@@ -3487,14 +3623,16 @@ static int update_raid_disks(mddev_t *mddev, int raid_disks)
{
int rv;
/* change the number of raid disks */
- if (mddev->pers->reshape == NULL)
+ if (mddev->pers->check_reshape == NULL)
return -EINVAL;
if (raid_disks <= 0 ||
raid_disks >= mddev->max_disks)
return -EINVAL;
- if (mddev->sync_thread)
+ if (mddev->sync_thread || mddev->reshape_position != MaxSector)
return -EBUSY;
- rv = mddev->pers->reshape(mddev, raid_disks);
+ mddev->delta_disks = raid_disks - mddev->raid_disks;
+
+ rv = mddev->pers->check_reshape(mddev);
return rv;
}
@@ -4041,7 +4179,10 @@ static void status_unused(struct seq_file *seq)
static void status_resync(struct seq_file *seq, mddev_t * mddev)
{
- unsigned long max_blocks, resync, res, dt, db, rt;
+ sector_t max_blocks, resync, res;
+ unsigned long dt, db, rt;
+ int scale;
+ unsigned int per_milli;
resync = (mddev->curr_resync - atomic_read(&mddev->recovery_active))/2;
@@ -4057,9 +4198,22 @@ static void status_resync(struct seq_file *seq, mddev_t * mddev)
MD_BUG();
return;
}
- res = (resync/1024)*1000/(max_blocks/1024 + 1);
+ /* Pick 'scale' such that (resync>>scale)*1000 will fit
+ * in a sector_t, and (max_blocks>>scale) will fit in a
+ * u32, as those are the requirements for sector_div.
+ * Thus 'scale' must be at least 10
+ */
+ scale = 10;
+ if (sizeof(sector_t) > sizeof(unsigned long)) {
+ while ( max_blocks/2 > (1ULL<<(scale+32)))
+ scale++;
+ }
+ res = (resync>>scale)*1000;
+ sector_div(res, (u32)((max_blocks>>scale)+1));
+
+ per_milli = res;
{
- int i, x = res/50, y = 20-x;
+ int i, x = per_milli/50, y = 20-x;
seq_printf(seq, "[");
for (i = 0; i < x; i++)
seq_printf(seq, "=");
@@ -4068,10 +4222,14 @@ static void status_resync(struct seq_file *seq, mddev_t * mddev)
seq_printf(seq, ".");
seq_printf(seq, "] ");
}
- seq_printf(seq, " %s =%3lu.%lu%% (%lu/%lu)",
+ seq_printf(seq, " %s =%3u.%u%% (%llu/%llu)",
+ (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)?
+ "reshape" :
(test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ?
- "resync" : "recovery"),
- res/10, res % 10, resync, max_blocks);
+ "resync" : "recovery")),
+ per_milli/10, per_milli % 10,
+ (unsigned long long) resync,
+ (unsigned long long) max_blocks);
/*
* We do not want to overflow, so the order of operands and
@@ -4085,7 +4243,7 @@ static void status_resync(struct seq_file *seq, mddev_t * mddev)
dt = ((jiffies - mddev->resync_mark) / HZ);
if (!dt) dt++;
db = resync - (mddev->resync_mark_cnt/2);
- rt = (dt * ((max_blocks-resync) / (db/100+1)))/100;
+ rt = (dt * ((unsigned long)(max_blocks-resync) / (db/100+1)))/100;
seq_printf(seq, " finish=%lu.%lumin", rt / 60, (rt % 60)/6);
@@ -4442,7 +4600,7 @@ static DECLARE_WAIT_QUEUE_HEAD(resync_wait);
#define SYNC_MARKS 10
#define SYNC_MARK_STEP (3*HZ)
-static void md_do_sync(mddev_t *mddev)
+void md_do_sync(mddev_t *mddev)
{
mddev_t *mddev2;
unsigned int currspeed = 0,
@@ -4522,7 +4680,9 @@ static void md_do_sync(mddev_t *mddev)
*/
max_sectors = mddev->resync_max_sectors;
mddev->resync_mismatches = 0;
- } else
+ } else if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
+ max_sectors = mddev->size << 1;
+ else
/* recovery follows the physical size of devices */
max_sectors = mddev->size << 1;
@@ -4658,6 +4818,8 @@ static void md_do_sync(mddev_t *mddev)
mddev->pers->sync_request(mddev, max_sectors, &skipped, 1);
if (!test_bit(MD_RECOVERY_ERR, &mddev->recovery) &&
+ test_bit(MD_RECOVERY_SYNC, &mddev->recovery) &&
+ !test_bit(MD_RECOVERY_CHECK, &mddev->recovery) &&
mddev->curr_resync > 2 &&
mddev->curr_resync >= mddev->recovery_cp) {
if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
@@ -4675,6 +4837,7 @@ static void md_do_sync(mddev_t *mddev)
set_bit(MD_RECOVERY_DONE, &mddev->recovery);
md_wakeup_thread(mddev->thread);
}
+EXPORT_SYMBOL_GPL(md_do_sync);
/*
@@ -4730,7 +4893,7 @@ void md_check_recovery(mddev_t *mddev)
))
return;
- if (mddev_trylock(mddev)==0) {
+ if (mddev_trylock(mddev)) {
int spares =0;
spin_lock_irq(&mddev->write_lock);
@@ -4866,7 +5029,7 @@ static int md_notify_reboot(struct notifier_block *this,
printk(KERN_INFO "md: stopping all md devices.\n");
ITERATE_MDDEV(mddev,tmp)
- if (mddev_trylock(mddev)==0)
+ if (mddev_trylock(mddev))
do_md_stop (mddev, 1);
/*
* certain more exotic SCSI devices are known to be
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 5d88329e3c7..3cb0872a845 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1402,6 +1402,9 @@ static void raid1d(mddev_t *mddev)
clear_bit(R1BIO_BarrierRetry, &r1_bio->state);
clear_bit(R1BIO_Barrier, &r1_bio->state);
for (i=0; i < conf->raid_disks; i++)
+ if (r1_bio->bios[i])
+ atomic_inc(&r1_bio->remaining);
+ for (i=0; i < conf->raid_disks; i++)
if (r1_bio->bios[i]) {
struct bio_vec *bvec;
int j;
@@ -1789,6 +1792,11 @@ static int run(mddev_t *mddev)
mdname(mddev), mddev->level);
goto out;
}
+ if (mddev->reshape_position != MaxSector) {
+ printk("raid1: %s: reshape_position set but not supported\n",
+ mdname(mddev));
+ goto out;
+ }
/*
* copy the already verified devices into our private RAID1
* bookkeeping area. [whatever we allocate in run(),
@@ -1971,7 +1979,7 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors)
return 0;
}
-static int raid1_reshape(mddev_t *mddev, int raid_disks)
+static int raid1_reshape(mddev_t *mddev)
{
/* We need to:
* 1/ resize the r1bio_pool
@@ -1988,10 +1996,22 @@ static int raid1_reshape(mddev_t *mddev, int raid_disks)
struct pool_info *newpoolinfo;
mirror_info_t *newmirrors;
conf_t *conf = mddev_to_conf(mddev);
- int cnt;
+ int cnt, raid_disks;
int d, d2;
+ /* Cannot change chunk_size, layout, or level */
+ if (mddev->chunk_size != mddev->new_chunk ||
+ mddev->layout != mddev->new_layout ||
+ mddev->level != mddev->new_level) {
+ mddev->new_chunk = mddev->chunk_size;
+ mddev->new_layout = mddev->layout;
+ mddev->new_level = mddev->level;
+ return -EINVAL;
+ }
+
+ raid_disks = mddev->raid_disks + mddev->delta_disks;
+
if (raid_disks < conf->raid_disks) {
cnt=0;
for (d= 0; d < conf->raid_disks; d++)
@@ -2038,6 +2058,7 @@ static int raid1_reshape(mddev_t *mddev, int raid_disks)
mddev->degraded += (raid_disks - conf->raid_disks);
conf->raid_disks = mddev->raid_disks = raid_disks;
+ mddev->delta_disks = 0;
conf->last_used = 0; /* just make sure it is in-range */
lower_barrier(conf);
@@ -2079,7 +2100,7 @@ static struct mdk_personality raid1_personality =
.spare_active = raid1_spare_active,
.sync_request = sync_request,
.resize = raid1_resize,
- .reshape = raid1_reshape,
+ .check_reshape = raid1_reshape,
.quiesce = raid1_quiesce,
};
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 2dba305daf3..dae740adaf6 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -22,6 +22,7 @@
#include <linux/raid/raid5.h>
#include <linux/highmem.h>
#include <linux/bitops.h>
+#include <linux/kthread.h>
#include <asm/atomic.h>
#include <linux/raid/bitmap.h>
@@ -93,11 +94,11 @@ static void __release_stripe(raid5_conf_t *conf, struct stripe_head *sh)
if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD)
md_wakeup_thread(conf->mddev->thread);
}
- list_add_tail(&sh->lru, &conf->inactive_list);
atomic_dec(&conf->active_stripes);
- if (!conf->inactive_blocked ||
- atomic_read(&conf->active_stripes) < (conf->max_nr_stripes*3/4))
+ if (!test_bit(STRIPE_EXPANDING, &sh->state)) {
+ list_add_tail(&sh->lru, &conf->inactive_list);
wake_up(&conf->wait_for_stripe);
+ }
}
}
}
@@ -178,10 +179,10 @@ static int grow_buffers(struct stripe_head *sh, int num)
static void raid5_build_block (struct stripe_head *sh, int i);
-static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
+static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx, int disks)
{
raid5_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks, i;
+ int i;
if (atomic_read(&sh->count) != 0)
BUG();
@@ -198,7 +199,9 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
sh->pd_idx = pd_idx;
sh->state = 0;
- for (i=disks; i--; ) {
+ sh->disks = disks;
+
+ for (i = sh->disks; i--; ) {
struct r5dev *dev = &sh->dev[i];
if (dev->toread || dev->towrite || dev->written ||
@@ -215,7 +218,7 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
insert_hash(conf, sh);
}
-static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector)
+static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector, int disks)
{
struct stripe_head *sh;
struct hlist_node *hn;
@@ -223,7 +226,7 @@ static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector)
CHECK_DEVLOCK();
PRINTK("__find_stripe, sector %llu\n", (unsigned long long)sector);
hlist_for_each_entry(sh, hn, stripe_hash(conf, sector), hash)
- if (sh->sector == sector)
+ if (sh->sector == sector && sh->disks == disks)
return sh;
PRINTK("__stripe %llu not in cache\n", (unsigned long long)sector);
return NULL;
@@ -232,8 +235,8 @@ static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector)
static void unplug_slaves(mddev_t *mddev);
static void raid5_unplug_device(request_queue_t *q);
-static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector,
- int pd_idx, int noblock)
+static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector, int disks,
+ int pd_idx, int noblock)
{
struct stripe_head *sh;
@@ -245,7 +248,7 @@ static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector
wait_event_lock_irq(conf->wait_for_stripe,
conf->quiesce == 0,
conf->device_lock, /* nothing */);
- sh = __find_stripe(conf, sector);
+ sh = __find_stripe(conf, sector, disks);
if (!sh) {
if (!conf->inactive_blocked)
sh = get_free_stripe(conf);
@@ -259,11 +262,11 @@ static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector
< (conf->max_nr_stripes *3/4)
|| !conf->inactive_blocked),
conf->device_lock,
- unplug_slaves(conf->mddev);
+ unplug_slaves(conf->mddev)
);
conf->inactive_blocked = 0;
} else
- init_stripe(sh, sector, pd_idx);
+ init_stripe(sh, sector, pd_idx, disks);
} else {
if (atomic_read(&sh->count)) {
if (!list_empty(&sh->lru))
@@ -271,9 +274,8 @@ static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector
} else {
if (!test_bit(STRIPE_HANDLE, &sh->state))
atomic_inc(&conf->active_stripes);
- if (list_empty(&sh->lru))
- BUG();
- list_del_init(&sh->lru);
+ if (!list_empty(&sh->lru))
+ list_del_init(&sh->lru);
}
}
} while (sh == NULL);
@@ -300,6 +302,7 @@ static int grow_one_stripe(raid5_conf_t *conf)
kmem_cache_free(conf->slab_cache, sh);
return 0;
}
+ sh->disks = conf->raid_disks;
/* we just created an active stripe so... */
atomic_set(&sh->count, 1);
atomic_inc(&conf->active_stripes);
@@ -313,14 +316,16 @@ static int grow_stripes(raid5_conf_t *conf, int num)
kmem_cache_t *sc;
int devs = conf->raid_disks;
- sprintf(conf->cache_name, "raid5/%s", mdname(conf->mddev));
-
- sc = kmem_cache_create(conf->cache_name,
+ sprintf(conf->cache_name[0], "raid5/%s", mdname(conf->mddev));
+ sprintf(conf->cache_name[1], "raid5/%s-alt", mdname(conf->mddev));
+ conf->active_name = 0;
+ sc = kmem_cache_create(conf->cache_name[conf->active_name],
sizeof(struct stripe_head)+(devs-1)*sizeof(struct r5dev),
0, 0, NULL, NULL);
if (!sc)
return 1;
conf->slab_cache = sc;
+ conf->pool_size = devs;
while (num--) {
if (!grow_one_stripe(conf))
return 1;
@@ -328,6 +333,129 @@ static int grow_stripes(raid5_conf_t *conf, int num)
return 0;
}
+#ifdef CONFIG_MD_RAID5_RESHAPE
+static int resize_stripes(raid5_conf_t *conf, int newsize)
+{
+ /* Make all the stripes able to hold 'newsize' devices.
+ * New slots in each stripe get 'page' set to a new page.
+ *
+ * This happens in stages:
+ * 1/ create a new kmem_cache and allocate the required number of
+ * stripe_heads.
+ * 2/ gather all the old stripe_heads and tranfer the pages across
+ * to the new stripe_heads. This will have the side effect of
+ * freezing the array as once all stripe_heads have been collected,
+ * no IO will be possible. Old stripe heads are freed once their
+ * pages have been transferred over, and the old kmem_cache is
+ * freed when all stripes are done.
+ * 3/ reallocate conf->disks to be suitable bigger. If this fails,
+ * we simple return a failre status - no need to clean anything up.
+ * 4/ allocate new pages for the new slots in the new stripe_heads.
+ * If this fails, we don't bother trying the shrink the
+ * stripe_heads down again, we just leave them as they are.
+ * As each stripe_head is processed the new one is released into
+ * active service.
+ *
+ * Once step2 is started, we cannot afford to wait for a write,
+ * so we use GFP_NOIO allocations.
+ */
+ struct stripe_head *osh, *nsh;
+ LIST_HEAD(newstripes);
+ struct disk_info *ndisks;
+ int err = 0;
+ kmem_cache_t *sc;
+ int i;
+
+ if (newsize <= conf->pool_size)
+ return 0; /* never bother to shrink */
+
+ /* Step 1 */
+ sc = kmem_cache_create(conf->cache_name[1-conf->active_name],
+ sizeof(struct stripe_head)+(newsize-1)*sizeof(struct r5dev),
+ 0, 0, NULL, NULL);
+ if (!sc)
+ return -ENOMEM;
+
+ for (i = conf->max_nr_stripes; i; i--) {
+ nsh = kmem_cache_alloc(sc, GFP_KERNEL);
+ if (!nsh)
+ break;
+
+ memset(nsh, 0, sizeof(*nsh) + (newsize-1)*sizeof(struct r5dev));
+
+ nsh->raid_conf = conf;
+ spin_lock_init(&nsh->lock);
+
+ list_add(&nsh->lru, &newstripes);
+ }
+ if (i) {
+ /* didn't get enough, give up */
+ while (!list_empty(&newstripes)) {
+ nsh = list_entry(newstripes.next, struct stripe_head, lru);
+ list_del(&nsh->lru);
+ kmem_cache_free(sc, nsh);
+ }
+ kmem_cache_destroy(sc);
+ return -ENOMEM;
+ }
+ /* Step 2 - Must use GFP_NOIO now.
+ * OK, we have enough stripes, start collecting inactive
+ * stripes and copying them over
+ */
+ list_for_each_entry(nsh, &newstripes, lru) {
+ spin_lock_irq(&conf->device_lock);
+ wait_event_lock_irq(conf->wait_for_stripe,
+ !list_empty(&conf->inactive_list),
+ conf->device_lock,
+ unplug_slaves(conf->mddev)
+ );
+ osh = get_free_stripe(conf);
+ spin_unlock_irq(&conf->device_lock);
+ atomic_set(&nsh->count, 1);
+ for(i=0; i<conf->pool_size; i++)
+ nsh->dev[i].page = osh->dev[i].page;
+ for( ; i<newsize; i++)
+ nsh->dev[i].page = NULL;
+ kmem_cache_free(conf->slab_cache, osh);
+ }
+ kmem_cache_destroy(conf->slab_cache);
+
+ /* Step 3.
+ * At this point, we are holding all the stripes so the array
+ * is completely stalled, so now is a good time to resize
+ * conf->disks.
+ */
+ ndisks = kzalloc(newsize * sizeof(struct disk_info), GFP_NOIO);
+ if (ndisks) {
+ for (i=0; i<conf->raid_disks; i++)
+ ndisks[i] = conf->disks[i];
+ kfree(conf->disks);
+ conf->disks = ndisks;
+ } else
+ err = -ENOMEM;
+
+ /* Step 4, return new stripes to service */
+ while(!list_empty(&newstripes)) {
+ nsh = list_entry(newstripes.next, struct stripe_head, lru);
+ list_del_init(&nsh->lru);
+ for (i=conf->raid_disks; i < newsize; i++)
+ if (nsh->dev[i].page == NULL) {
+ struct page *p = alloc_page(GFP_NOIO);
+ nsh->dev[i].page = p;
+ if (!p)
+ err = -ENOMEM;
+ }
+ release_stripe(nsh);
+ }
+ /* critical section pass, GFP_NOIO no longer needed */
+
+ conf->slab_cache = sc;
+ conf->active_name = 1-conf->active_name;
+ conf->pool_size = newsize;
+ return err;
+}
+#endif
+
static int drop_one_stripe(raid5_conf_t *conf)
{
struct stripe_head *sh;
@@ -339,7 +467,7 @@ static int drop_one_stripe(raid5_conf_t *conf)
return 0;
if (atomic_read(&sh->count))
BUG();
- shrink_buffers(sh, conf->raid_disks);
+ shrink_buffers(sh, conf->pool_size);
kmem_cache_free(conf->slab_cache, sh);
atomic_dec(&conf->active_stripes);
return 1;
@@ -360,7 +488,7 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done,
{
struct stripe_head *sh = bi->bi_private;
raid5_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks, i;
+ int disks = sh->disks, i;
int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags);
if (bi->bi_size)
@@ -458,7 +586,7 @@ static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done,
{
struct stripe_head *sh = bi->bi_private;
raid5_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks, i;
+ int disks = sh->disks, i;
unsigned long flags;
int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -612,7 +740,7 @@ static sector_t raid5_compute_sector(sector_t r_sector, unsigned int raid_disks,
static sector_t compute_blocknr(struct stripe_head *sh, int i)
{
raid5_conf_t *conf = sh->raid_conf;
- int raid_disks = conf->raid_disks, data_disks = raid_disks - 1;
+ int raid_disks = sh->disks, data_disks = raid_disks - 1;
sector_t new_sector = sh->sector, check;
int sectors_per_chunk = conf->chunk_size >> 9;
sector_t stripe;
@@ -713,8 +841,7 @@ static void copy_data(int frombio, struct bio *bio,
static void compute_block(struct stripe_head *sh, int dd_idx)
{
- raid5_conf_t *conf = sh->raid_conf;
- int i, count, disks = conf->raid_disks;
+ int i, count, disks = sh->disks;
void *ptr[MAX_XOR_BLOCKS], *p;
PRINTK("compute_block, stripe %llu, idx %d\n",
@@ -744,7 +871,7 @@ static void compute_block(struct stripe_head *sh, int dd_idx)
static void compute_parity(struct stripe_head *sh, int method)
{
raid5_conf_t *conf = sh->raid_conf;
- int i, pd_idx = sh->pd_idx, disks = conf->raid_disks, count;
+ int i, pd_idx = sh->pd_idx, disks = sh->disks, count;
void *ptr[MAX_XOR_BLOCKS];
struct bio *chosen;
@@ -910,6 +1037,20 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
return 0;
}
+static void end_reshape(raid5_conf_t *conf);
+
+static int stripe_to_pdidx(sector_t stripe, raid5_conf_t *conf, int disks)
+{
+ int sectors_per_chunk = conf->chunk_size >> 9;
+ sector_t x = stripe;
+ int pd_idx, dd_idx;
+ int chunk_offset = sector_div(x, sectors_per_chunk);
+ stripe = x;
+ raid5_compute_sector(stripe*(disks-1)*sectors_per_chunk
+ + chunk_offset, disks, disks-1, &dd_idx, &pd_idx, conf);
+ return pd_idx;
+}
+
/*
* handle_stripe - do things to a stripe.
@@ -932,11 +1073,11 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
static void handle_stripe(struct stripe_head *sh)
{
raid5_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks;
+ int disks = sh->disks;
struct bio *return_bi= NULL;
struct bio *bi;
int i;
- int syncing;
+ int syncing, expanding, expanded;
int locked=0, uptodate=0, to_read=0, to_write=0, failed=0, written=0;
int non_overwrite = 0;
int failed_num=0;
@@ -951,6 +1092,8 @@ static void handle_stripe(struct stripe_head *sh)
clear_bit(STRIPE_DELAYED, &sh->state);
syncing = test_bit(STRIPE_SYNCING, &sh->state);
+ expanding = test_bit(STRIPE_EXPAND_SOURCE, &sh->state);
+ expanded = test_bit(STRIPE_EXPAND_READY, &sh->state);
/* Now to look around and see what can be done */
rcu_read_lock();
@@ -1143,13 +1286,14 @@ static void handle_stripe(struct stripe_head *sh)
* parity, or to satisfy requests
* or to load a block that is being partially written.
*/
- if (to_read || non_overwrite || (syncing && (uptodate < disks))) {
+ if (to_read || non_overwrite || (syncing && (uptodate < disks)) || expanding) {
for (i=disks; i--;) {
dev = &sh->dev[i];
if (!test_bit(R5_LOCKED, &dev->flags) && !test_bit(R5_UPTODATE, &dev->flags) &&
(dev->toread ||
(dev->towrite && !test_bit(R5_OVERWRITE, &dev->flags)) ||
syncing ||
+ expanding ||
(failed && (sh->dev[failed_num].toread ||
(sh->dev[failed_num].towrite && !test_bit(R5_OVERWRITE, &sh->dev[failed_num].flags))))
)
@@ -1339,13 +1483,77 @@ static void handle_stripe(struct stripe_head *sh)
set_bit(R5_Wantwrite, &dev->flags);
set_bit(R5_ReWrite, &dev->flags);
set_bit(R5_LOCKED, &dev->flags);
+ locked++;
} else {
/* let's read it back */
set_bit(R5_Wantread, &dev->flags);
set_bit(R5_LOCKED, &dev->flags);
+ locked++;
}
}
+ if (expanded && test_bit(STRIPE_EXPANDING, &sh->state)) {
+ /* Need to write out all blocks after computing parity */
+ sh->disks = conf->raid_disks;
+ sh->pd_idx = stripe_to_pdidx(sh->sector, conf, conf->raid_disks);
+ compute_parity(sh, RECONSTRUCT_WRITE);
+ for (i= conf->raid_disks; i--;) {
+ set_bit(R5_LOCKED, &sh->dev[i].flags);
+ locked++;
+ set_bit(R5_Wantwrite, &sh->dev[i].flags);
+ }
+ clear_bit(STRIPE_EXPANDING, &sh->state);
+ } else if (expanded) {
+ clear_bit(STRIPE_EXPAND_READY, &sh->state);
+ atomic_dec(&conf->reshape_stripes);
+ wake_up(&conf->wait_for_overlap);
+ md_done_sync(conf->mddev, STRIPE_SECTORS, 1);
+ }
+
+ if (expanding && locked == 0) {
+ /* We have read all the blocks in this stripe and now we need to
+ * copy some of them into a target stripe for expand.
+ */
+ clear_bit(STRIPE_EXPAND_SOURCE, &sh->state);
+ for (i=0; i< sh->disks; i++)
+ if (i != sh->pd_idx) {
+ int dd_idx, pd_idx, j;
+ struct stripe_head *sh2;
+
+ sector_t bn = compute_blocknr(sh, i);
+ sector_t s = raid5_compute_sector(bn, conf->raid_disks,
+ conf->raid_disks-1,
+ &dd_idx, &pd_idx, conf);
+ sh2 = get_active_stripe(conf, s, conf->raid_disks, pd_idx, 1);
+ if (sh2 == NULL)
+ /* so far only the early blocks of this stripe
+ * have been requested. When later blocks
+ * get requested, we will try again
+ */
+ continue;
+ if(!test_bit(STRIPE_EXPANDING, &sh2->state) ||
+ test_bit(R5_Expanded, &sh2->dev[dd_idx].flags)) {
+ /* must have already done this block */
+ release_stripe(sh2);
+ continue;
+ }
+ memcpy(page_address(sh2->dev[dd_idx].page),
+ page_address(sh->dev[i].page),
+ STRIPE_SIZE);
+ set_bit(R5_Expanded, &sh2->dev[dd_idx].flags);
+ set_bit(R5_UPTODATE, &sh2->dev[dd_idx].flags);
+ for (j=0; j<conf->raid_disks; j++)
+ if (j != sh2->pd_idx &&
+ !test_bit(R5_Expanded, &sh2->dev[j].flags))
+ break;
+ if (j == conf->raid_disks) {
+ set_bit(STRIPE_EXPAND_READY, &sh2->state);
+ set_bit(STRIPE_HANDLE, &sh2->state);
+ }
+ release_stripe(sh2);
+ }
+ }
+
spin_unlock(&sh->lock);
while ((bi=return_bi)) {
@@ -1384,7 +1592,7 @@ static void handle_stripe(struct stripe_head *sh)
rcu_read_unlock();
if (rdev) {
- if (syncing)
+ if (syncing || expanding || expanded)
md_sync_acct(rdev->bdev, STRIPE_SECTORS);
bi->bi_bdev = rdev->bdev;
@@ -1526,17 +1734,16 @@ static inline void raid5_plug_device(raid5_conf_t *conf)
spin_unlock_irq(&conf->device_lock);
}
-static int make_request (request_queue_t *q, struct bio * bi)
+static int make_request(request_queue_t *q, struct bio * bi)
{
mddev_t *mddev = q->queuedata;
raid5_conf_t *conf = mddev_to_conf(mddev);
- const unsigned int raid_disks = conf->raid_disks;
- const unsigned int data_disks = raid_disks - 1;
unsigned int dd_idx, pd_idx;
sector_t new_sector;
sector_t logical_sector, last_sector;
struct stripe_head *sh;
const int rw = bio_data_dir(bi);
+ int remaining;
if (unlikely(bio_barrier(bi))) {
bio_endio(bi, bi->bi_size, -EOPNOTSUPP);
@@ -1555,20 +1762,77 @@ static int make_request (request_queue_t *q, struct bio * bi)
for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
DEFINE_WAIT(w);
-
- new_sector = raid5_compute_sector(logical_sector,
- raid_disks, data_disks, &dd_idx, &pd_idx, conf);
+ int disks;
+ retry:
+ prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
+ if (likely(conf->expand_progress == MaxSector))
+ disks = conf->raid_disks;
+ else {
+ /* spinlock is needed as expand_progress may be
+ * 64bit on a 32bit platform, and so it might be
+ * possible to see a half-updated value
+ * Ofcourse expand_progress could change after
+ * the lock is dropped, so once we get a reference
+ * to the stripe that we think it is, we will have
+ * to check again.
+ */
+ spin_lock_irq(&conf->device_lock);
+ disks = conf->raid_disks;
+ if (logical_sector >= conf->expand_progress)
+ disks = conf->previous_raid_disks;
+ else {
+ if (logical_sector >= conf->expand_lo) {
+ spin_unlock_irq(&conf->device_lock);
+ schedule();
+ goto retry;
+ }
+ }
+ spin_unlock_irq(&conf->device_lock);
+ }
+ new_sector = raid5_compute_sector(logical_sector, disks, disks - 1,
+ &dd_idx, &pd_idx, conf);
PRINTK("raid5: make_request, sector %llu logical %llu\n",
(unsigned long long)new_sector,
(unsigned long long)logical_sector);
- retry:
- prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
- sh = get_active_stripe(conf, new_sector, pd_idx, (bi->bi_rw&RWA_MASK));
+ sh = get_active_stripe(conf, new_sector, disks, pd_idx, (bi->bi_rw&RWA_MASK));
if (sh) {
- if (!add_stripe_bio(sh, bi, dd_idx, (bi->bi_rw&RW_MASK))) {
- /* Add failed due to overlap. Flush everything
+ if (unlikely(conf->expand_progress != MaxSector)) {
+ /* expansion might have moved on while waiting for a
+ * stripe, so we must do the range check again.
+ * Expansion could still move past after this
+ * test, but as we are holding a reference to
+ * 'sh', we know that if that happens,
+ * STRIPE_EXPANDING will get set and the expansion
+ * won't proceed until we finish with the stripe.
+ */
+ int must_retry = 0;
+ spin_lock_irq(&conf->device_lock);
+ if (logical_sector < conf->expand_progress &&
+ disks == conf->previous_raid_disks)
+ /* mismatch, need to try again */
+ must_retry = 1;
+ spin_unlock_irq(&conf->device_lock);
+ if (must_retry) {
+ release_stripe(sh);
+ goto retry;
+ }
+ }
+ /* FIXME what if we get a false positive because these
+ * are being updated.
+ */
+ if (logical_sector >= mddev->suspend_lo &&
+ logical_sector < mddev->suspend_hi) {
+ release_stripe(sh);
+ schedule();
+ goto retry;
+ }
+
+ if (test_bit(STRIPE_EXPANDING, &sh->state) ||
+ !add_stripe_bio(sh, bi, dd_idx, (bi->bi_rw&RW_MASK))) {
+ /* Stripe is busy expanding or
+ * add failed due to overlap. Flush everything
* and wait a while
*/
raid5_unplug_device(mddev->queue);
@@ -1580,7 +1844,6 @@ static int make_request (request_queue_t *q, struct bio * bi)
raid5_plug_device(conf);
handle_stripe(sh);
release_stripe(sh);
-
} else {
/* cannot get stripe for read-ahead, just give-up */
clear_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -1590,7 +1853,9 @@ static int make_request (request_queue_t *q, struct bio * bi)
}
spin_lock_irq(&conf->device_lock);
- if (--bi->bi_phys_segments == 0) {
+ remaining = --bi->bi_phys_segments;
+ spin_unlock_irq(&conf->device_lock);
+ if (remaining == 0) {
int bytes = bi->bi_size;
if ( bio_data_dir(bi) == WRITE )
@@ -1598,7 +1863,6 @@ static int make_request (request_queue_t *q, struct bio * bi)
bi->bi_size = 0;
bi->bi_end_io(bi, bytes, 0);
}
- spin_unlock_irq(&conf->device_lock);
return 0;
}
@@ -1607,12 +1871,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
{
raid5_conf_t *conf = (raid5_conf_t *) mddev->private;
struct stripe_head *sh;
- int sectors_per_chunk = conf->chunk_size >> 9;
- sector_t x;
- unsigned long stripe;
- int chunk_offset;
- int dd_idx, pd_idx;
- sector_t first_sector;
+ int pd_idx;
+ sector_t first_sector, last_sector;
int raid_disks = conf->raid_disks;
int data_disks = raid_disks-1;
sector_t max_sector = mddev->size << 1;
@@ -1621,6 +1881,10 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
if (sector_nr >= max_sector) {
/* just being told to finish up .. nothing much to do */
unplug_slaves(mddev);
+ if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) {
+ end_reshape(conf);
+ return 0;
+ }
if (mddev->curr_resync < max_sector) /* aborted */
bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
@@ -1631,6 +1895,123 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
return 0;
}
+
+ if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) {
+ /* reshaping is quite different to recovery/resync so it is
+ * handled quite separately ... here.
+ *
+ * On each call to sync_request, we gather one chunk worth of
+ * destination stripes and flag them as expanding.
+ * Then we find all the source stripes and request reads.
+ * As the reads complete, handle_stripe will copy the data
+ * into the destination stripe and release that stripe.
+ */
+ int i;
+ int dd_idx;
+ sector_t writepos, safepos, gap;
+
+ if (sector_nr == 0 &&
+ conf->expand_progress != 0) {
+ /* restarting in the middle, skip the initial sectors */
+ sector_nr = conf->expand_progress;
+ sector_div(sector_nr, conf->raid_disks-1);
+ *skipped = 1;
+ return sector_nr;
+ }
+
+ /* we update the metadata when there is more than 3Meg
+ * in the block range (that is rather arbitrary, should
+ * probably be time based) or when the data about to be
+ * copied would over-write the source of the data at
+ * the front of the range.
+ * i.e. one new_stripe forward from expand_progress new_maps
+ * to after where expand_lo old_maps to
+ */
+ writepos = conf->expand_progress +
+ conf->chunk_size/512*(conf->raid_disks-1);
+ sector_div(writepos, conf->raid_disks-1);
+ safepos = conf->expand_lo;
+ sector_div(safepos, conf->previous_raid_disks-1);
+ gap = conf->expand_progress - conf->expand_lo;
+
+ if (writepos >= safepos ||
+ gap > (conf->raid_disks-1)*3000*2 /*3Meg*/) {
+ /* Cannot proceed until we've updated the superblock... */
+ wait_event(conf->wait_for_overlap,
+ atomic_read(&conf->reshape_stripes)==0);
+ mddev->reshape_position = conf->expand_progress;
+ mddev->sb_dirty = 1;
+ md_wakeup_thread(mddev->thread);
+ wait_event(mddev->sb_wait, mddev->sb_dirty == 0 ||
+ kthread_should_stop());
+ spin_lock_irq(&conf->device_lock);
+ conf->expand_lo = mddev->reshape_position;
+ spin_unlock_irq(&conf->device_lock);
+ wake_up(&conf->wait_for_overlap);
+ }
+
+ for (i=0; i < conf->chunk_size/512; i+= STRIPE_SECTORS) {
+ int j;
+ int skipped = 0;
+ pd_idx = stripe_to_pdidx(sector_nr+i, conf, conf->raid_disks);
+ sh = get_active_stripe(conf, sector_nr+i,
+ conf->raid_disks, pd_idx, 0);
+ set_bit(STRIPE_EXPANDING, &sh->state);
+ atomic_inc(&conf->reshape_stripes);
+ /* If any of this stripe is beyond the end of the old
+ * array, then we need to zero those blocks
+ */
+ for (j=sh->disks; j--;) {
+ sector_t s;
+ if (j == sh->pd_idx)
+ continue;
+ s = compute_blocknr(sh, j);
+ if (s < (mddev->array_size<<1)) {
+ skipped = 1;
+ continue;
+ }
+ memset(page_address(sh->dev[j].page), 0, STRIPE_SIZE);
+ set_bit(R5_Expanded, &sh->dev[j].flags);
+ set_bit(R5_UPTODATE, &sh->dev[j].flags);
+ }
+ if (!skipped) {
+ set_bit(STRIPE_EXPAND_READY, &sh->state);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ }
+ release_stripe(sh);
+ }
+ spin_lock_irq(&conf->device_lock);
+ conf->expand_progress = (sector_nr + i)*(conf->raid_disks-1);
+ spin_unlock_irq(&conf->device_lock);
+ /* Ok, those stripe are ready. We can start scheduling
+ * reads on the source stripes.
+ * The source stripes are determined by mapping the first and last
+ * block on the destination stripes.
+ */
+ raid_disks = conf->previous_raid_disks;
+ data_disks = raid_disks - 1;
+ first_sector =
+ raid5_compute_sector(sector_nr*(conf->raid_disks-1),
+ raid_disks, data_disks,
+ &dd_idx, &pd_idx, conf);
+ last_sector =
+ raid5_compute_sector((sector_nr+conf->chunk_size/512)
+ *(conf->raid_disks-1) -1,
+ raid_disks, data_disks,
+ &dd_idx, &pd_idx, conf);
+ if (last_sector >= (mddev->size<<1))
+ last_sector = (mddev->size<<1)-1;
+ while (first_sector <= last_sector) {
+ pd_idx = stripe_to_pdidx(first_sector, conf, conf->previous_raid_disks);
+ sh = get_active_stripe(conf, first_sector,
+ conf->previous_raid_disks, pd_idx, 0);
+ set_bit(STRIPE_EXPAND_SOURCE, &sh->state);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ release_stripe(sh);
+ first_sector += STRIPE_SECTORS;
+ }
+ return conf->chunk_size>>9;
+ }
/* if there is 1 or more failed drives and we are trying
* to resync, then assert that we are finished, because there is
* nothing we can do.
@@ -1649,16 +2030,10 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
return sync_blocks * STRIPE_SECTORS; /* keep things rounded to whole stripes */
}
- x = sector_nr;
- chunk_offset = sector_div(x, sectors_per_chunk);
- stripe = x;
- BUG_ON(x != stripe);
-
- first_sector = raid5_compute_sector((sector_t)stripe*data_disks*sectors_per_chunk
- + chunk_offset, raid_disks, data_disks, &dd_idx, &pd_idx, conf);
- sh = get_active_stripe(conf, sector_nr, pd_idx, 1);
+ pd_idx = stripe_to_pdidx(sector_nr, conf, raid_disks);
+ sh = get_active_stripe(conf, sector_nr, raid_disks, pd_idx, 1);
if (sh == NULL) {
- sh = get_active_stripe(conf, sector_nr, pd_idx, 0);
+ sh = get_active_stripe(conf, sector_nr, raid_disks, pd_idx, 0);
/* make sure we don't swamp the stripe cache if someone else
* is trying to get access
*/
@@ -1822,11 +2197,64 @@ static int run(mddev_t *mddev)
return -EIO;
}
- mddev->private = kzalloc(sizeof (raid5_conf_t)
- + mddev->raid_disks * sizeof(struct disk_info),
- GFP_KERNEL);
+ if (mddev->reshape_position != MaxSector) {
+ /* Check that we can continue the reshape.
+ * Currently only disks can change, it must
+ * increase, and we must be past the point where
+ * a stripe over-writes itself
+ */
+ sector_t here_new, here_old;
+ int old_disks;
+
+ if (mddev->new_level != mddev->level ||
+ mddev->new_layout != mddev->layout ||
+ mddev->new_chunk != mddev->chunk_size) {
+ printk(KERN_ERR "raid5: %s: unsupported reshape required - aborting.\n",
+ mdname(mddev));
+ return -EINVAL;
+ }
+ if (mddev->delta_disks <= 0) {
+ printk(KERN_ERR "raid5: %s: unsupported reshape (reduce disks) required - aborting.\n",
+ mdname(mddev));
+ return -EINVAL;
+ }
+ old_disks = mddev->raid_disks - mddev->delta_disks;
+ /* reshape_position must be on a new-stripe boundary, and one
+ * further up in new geometry must map after here in old geometry.
+ */
+ here_new = mddev->reshape_position;
+ if (sector_div(here_new, (mddev->chunk_size>>9)*(mddev->raid_disks-1))) {
+ printk(KERN_ERR "raid5: reshape_position not on a stripe boundary\n");
+ return -EINVAL;
+ }
+ /* here_new is the stripe we will write to */
+ here_old = mddev->reshape_position;
+ sector_div(here_old, (mddev->chunk_size>>9)*(old_disks-1));
+ /* here_old is the first stripe that we might need to read from */
+ if (here_new >= here_old) {
+ /* Reading from the same stripe as writing to - bad */
+ printk(KERN_ERR "raid5: reshape_position too early for auto-recovery - aborting.\n");
+ return -EINVAL;
+ }
+ printk(KERN_INFO "raid5: reshape will continue\n");
+ /* OK, we should be able to continue; */
+ }
+
+
+ mddev->private = kzalloc(sizeof (raid5_conf_t), GFP_KERNEL);
if ((conf = mddev->private) == NULL)
goto abort;
+ if (mddev->reshape_position == MaxSector) {
+ conf->previous_raid_disks = conf->raid_disks = mddev->raid_disks;
+ } else {
+ conf->raid_disks = mddev->raid_disks;
+ conf->previous_raid_disks = mddev->raid_disks - mddev->delta_disks;
+ }
+
+ conf->disks = kzalloc(conf->raid_disks * sizeof(struct disk_info),
+ GFP_KERNEL);
+ if (!conf->disks)
+ goto abort;
conf->mddev = mddev;
@@ -1847,7 +2275,7 @@ static int run(mddev_t *mddev)
ITERATE_RDEV(mddev,rdev,tmp) {
raid_disk = rdev->raid_disk;
- if (raid_disk >= mddev->raid_disks
+ if (raid_disk >= conf->raid_disks
|| raid_disk < 0)
continue;
disk = conf->disks + raid_disk;
@@ -1863,7 +2291,6 @@ static int run(mddev_t *mddev)
}
}
- conf->raid_disks = mddev->raid_disks;
/*
* 0 for a fully functional array, 1 for a degraded array.
*/
@@ -1873,6 +2300,7 @@ static int run(mddev_t *mddev)
conf->level = mddev->level;
conf->algorithm = mddev->layout;
conf->max_nr_stripes = NR_STRIPES;
+ conf->expand_progress = mddev->reshape_position;
/* device size must be a multiple of chunk size */
mddev->size &= ~(mddev->chunk_size/1024 -1);
@@ -1945,6 +2373,21 @@ static int run(mddev_t *mddev)
print_raid5_conf(conf);
+ if (conf->expand_progress != MaxSector) {
+ printk("...ok start reshape thread\n");
+ conf->expand_lo = conf->expand_progress;
+ atomic_set(&conf->reshape_stripes, 0);
+ clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
+ clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
+ set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
+ set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
+ mddev->sync_thread = md_register_thread(md_do_sync, mddev,
+ "%s_reshape");
+ /* FIXME if md_register_thread fails?? */
+ md_wakeup_thread(mddev->sync_thread);
+
+ }
+
/* read-ahead size must cover two whole stripes, which is
* 2 * (n-1) * chunksize where 'n' is the number of raid devices
*/
@@ -1960,12 +2403,13 @@ static int run(mddev_t *mddev)
mddev->queue->unplug_fn = raid5_unplug_device;
mddev->queue->issue_flush_fn = raid5_issue_flush;
+ mddev->array_size = mddev->size * (conf->previous_raid_disks - 1);
- mddev->array_size = mddev->size * (mddev->raid_disks - 1);
return 0;
abort:
if (conf) {
print_raid5_conf(conf);
+ kfree(conf->disks);
kfree(conf->stripe_hashtbl);
kfree(conf);
}
@@ -1986,6 +2430,7 @@ static int stop(mddev_t *mddev)
kfree(conf->stripe_hashtbl);
blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
sysfs_remove_group(&mddev->kobj, &raid5_attrs_group);
+ kfree(conf->disks);
kfree(conf);
mddev->private = NULL;
return 0;
@@ -2001,7 +2446,7 @@ static void print_sh (struct stripe_head *sh)
printk("sh %llu, count %d.\n",
(unsigned long long)sh->sector, atomic_read(&sh->count));
printk("sh %llu, ", (unsigned long long)sh->sector);
- for (i = 0; i < sh->raid_conf->raid_disks; i++) {
+ for (i = 0; i < sh->disks; i++) {
printk("(cache%d: %p %ld) ",
i, sh->dev[i].page, sh->dev[i].flags);
}
@@ -2132,7 +2577,7 @@ static int raid5_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
/*
* find the disk ...
*/
- for (disk=0; disk < mddev->raid_disks; disk++)
+ for (disk=0; disk < conf->raid_disks; disk++)
if ((p=conf->disks + disk)->rdev == NULL) {
clear_bit(In_sync, &rdev->flags);
rdev->raid_disk = disk;
@@ -2168,11 +2613,146 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors)
return 0;
}
+#ifdef CONFIG_MD_RAID5_RESHAPE
+static int raid5_check_reshape(mddev_t *mddev)
+{
+ raid5_conf_t *conf = mddev_to_conf(mddev);
+ int err;
+
+ if (mddev->delta_disks < 0 ||
+ mddev->new_level != mddev->level)
+ return -EINVAL; /* Cannot shrink array or change level yet */
+ if (mddev->delta_disks == 0)
+ return 0; /* nothing to do */
+
+ /* Can only proceed if there are plenty of stripe_heads.
+ * We need a minimum of one full stripe,, and for sensible progress
+ * it is best to have about 4 times that.
+ * If we require 4 times, then the default 256 4K stripe_heads will
+ * allow for chunk sizes up to 256K, which is probably OK.
+ * If the chunk size is greater, user-space should request more
+ * stripe_heads first.
+ */
+ if ((mddev->chunk_size / STRIPE_SIZE) * 4 > conf->max_nr_stripes ||
+ (mddev->new_chunk / STRIPE_SIZE) * 4 > conf->max_nr_stripes) {
+ printk(KERN_WARNING "raid5: reshape: not enough stripes. Needed %lu\n",
+ (mddev->chunk_size / STRIPE_SIZE)*4);
+ return -ENOSPC;
+ }
+
+ err = resize_stripes(conf, conf->raid_disks + mddev->delta_disks);
+ if (err)
+ return err;
+
+ /* looks like we might be able to manage this */
+ return 0;
+}
+
+static int raid5_start_reshape(mddev_t *mddev)
+{
+ raid5_conf_t *conf = mddev_to_conf(mddev);
+ mdk_rdev_t *rdev;
+ struct list_head *rtmp;
+ int spares = 0;
+ int added_devices = 0;
+
+ if (mddev->degraded ||
+ test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
+ return -EBUSY;
+
+ ITERATE_RDEV(mddev, rdev, rtmp)
+ if (rdev->raid_disk < 0 &&
+ !test_bit(Faulty, &rdev->flags))
+ spares++;
+
+ if (spares < mddev->delta_disks-1)
+ /* Not enough devices even to make a degraded array
+ * of that size
+ */
+ return -EINVAL;
+
+ atomic_set(&conf->reshape_stripes, 0);
+ spin_lock_irq(&conf->device_lock);
+ conf->previous_raid_disks = conf->raid_disks;
+ conf->raid_disks += mddev->delta_disks;
+ conf->expand_progress = 0;
+ conf->expand_lo = 0;
+ spin_unlock_irq(&conf->device_lock);
+
+ /* Add some new drives, as many as will fit.
+ * We know there are enough to make the newly sized array work.
+ */
+ ITERATE_RDEV(mddev, rdev, rtmp)
+ if (rdev->raid_disk < 0 &&
+ !test_bit(Faulty, &rdev->flags)) {
+ if (raid5_add_disk(mddev, rdev)) {
+ char nm[20];
+ set_bit(In_sync, &rdev->flags);
+ conf->working_disks++;
+ added_devices++;
+ sprintf(nm, "rd%d", rdev->raid_disk);
+ sysfs_create_link(&mddev->kobj, &rdev->kobj, nm);
+ } else
+ break;
+ }
+
+ mddev->degraded = (conf->raid_disks - conf->previous_raid_disks) - added_devices;
+ mddev->raid_disks = conf->raid_disks;
+ mddev->reshape_position = 0;
+ mddev->sb_dirty = 1;
+
+ clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
+ clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
+ set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
+ set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
+ mddev->sync_thread = md_register_thread(md_do_sync, mddev,
+ "%s_reshape");
+ if (!mddev->sync_thread) {
+ mddev->recovery = 0;
+ spin_lock_irq(&conf->device_lock);
+ mddev->raid_disks = conf->raid_disks = conf->previous_raid_disks;
+ conf->expand_progress = MaxSector;
+ spin_unlock_irq(&conf->device_lock);
+ return -EAGAIN;
+ }
+ md_wakeup_thread(mddev->sync_thread);
+ md_new_event(mddev);
+ return 0;
+}
+#endif
+
+static void end_reshape(raid5_conf_t *conf)
+{
+ struct block_device *bdev;
+
+ if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
+ conf->mddev->array_size = conf->mddev->size * (conf->raid_disks-1);
+ set_capacity(conf->mddev->gendisk, conf->mddev->array_size << 1);
+ conf->mddev->changed = 1;
+
+ bdev = bdget_disk(conf->mddev->gendisk, 0);
+ if (bdev) {
+ mutex_lock(&bdev->bd_inode->i_mutex);
+ i_size_write(bdev->bd_inode, conf->mddev->array_size << 10);
+ mutex_unlock(&bdev->bd_inode->i_mutex);
+ bdput(bdev);
+ }
+ spin_lock_irq(&conf->device_lock);
+ conf->expand_progress = MaxSector;
+ spin_unlock_irq(&conf->device_lock);
+ conf->mddev->reshape_position = MaxSector;
+ }
+}
+
static void raid5_quiesce(mddev_t *mddev, int state)
{
raid5_conf_t *conf = mddev_to_conf(mddev);
switch(state) {
+ case 2: /* resume for a suspend */
+ wake_up(&conf->wait_for_overlap);
+ break;
+
case 1: /* stop all writes */
spin_lock_irq(&conf->device_lock);
conf->quiesce = 1;
@@ -2186,6 +2766,7 @@ static void raid5_quiesce(mddev_t *mddev, int state)
spin_lock_irq(&conf->device_lock);
conf->quiesce = 0;
wake_up(&conf->wait_for_stripe);
+ wake_up(&conf->wait_for_overlap);
spin_unlock_irq(&conf->device_lock);
break;
}
@@ -2206,6 +2787,10 @@ static struct mdk_personality raid5_personality =
.spare_active = raid5_spare_active,
.sync_request = sync_request,
.resize = raid5_resize,
+#ifdef CONFIG_MD_RAID5_RESHAPE
+ .check_reshape = raid5_check_reshape,
+ .start_reshape = raid5_start_reshape,
+#endif
.quiesce = raid5_quiesce,
};
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
index cd477ebf2ee..6df4930fdde 100644
--- a/drivers/md/raid6main.c
+++ b/drivers/md/raid6main.c
@@ -331,9 +331,9 @@ static int grow_stripes(raid6_conf_t *conf, int num)
kmem_cache_t *sc;
int devs = conf->raid_disks;
- sprintf(conf->cache_name, "raid6/%s", mdname(conf->mddev));
+ sprintf(conf->cache_name[0], "raid6/%s", mdname(conf->mddev));
- sc = kmem_cache_create(conf->cache_name,
+ sc = kmem_cache_create(conf->cache_name[0],
sizeof(struct stripe_head)+(devs-1)*sizeof(struct r5dev),
0, 0, NULL, NULL);
if (!sc)
@@ -2006,11 +2006,14 @@ static int run(mddev_t *mddev)
return -EIO;
}
- mddev->private = kzalloc(sizeof (raid6_conf_t)
- + mddev->raid_disks * sizeof(struct disk_info),
- GFP_KERNEL);
+ mddev->private = kzalloc(sizeof (raid6_conf_t), GFP_KERNEL);
if ((conf = mddev->private) == NULL)
goto abort;
+ conf->disks = kzalloc(mddev->raid_disks * sizeof(struct disk_info),
+ GFP_KERNEL);
+ if (!conf->disks)
+ goto abort;
+
conf->mddev = mddev;
if ((conf->stripe_hashtbl = kzalloc(PAGE_SIZE, GFP_KERNEL)) == NULL)
@@ -2158,6 +2161,7 @@ abort:
print_raid6_conf(conf);
safe_put_page(conf->spare_page);
kfree(conf->stripe_hashtbl);
+ kfree(conf->disks);
kfree(conf);
}
mddev->private = NULL;
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index 54f8b95717b..96fe0ecae25 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -86,7 +86,7 @@ static int dvb_device_open(struct inode *inode, struct file *file)
if (dvbdev && dvbdev->fops) {
int err = 0;
- struct file_operations *old_fops;
+ const struct file_operations *old_fops;
file->private_data = dvbdev;
old_fops = file->f_op;
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 75e3d41382f..5f87dd5f1d0 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -97,7 +97,7 @@ static int video_open(struct inode *inode, struct file *file)
unsigned int minor = iminor(inode);
int err = 0;
struct video_device *vfl;
- struct file_operations *old_fops;
+ const struct file_operations *old_fops;
if(minor>=VIDEO_NUM_DEVICES)
return -ENODEV;
diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
index 2a0c42b8cda..3d2e76eea93 100644
--- a/drivers/message/i2o/i2o_proc.c
+++ b/drivers/message/i2o/i2o_proc.c
@@ -56,7 +56,7 @@
typedef struct _i2o_proc_entry_t {
char *name; /* entry name */
mode_t mode; /* mode */
- struct file_operations *fops; /* open function */
+ const struct file_operations *fops; /* open function */
} i2o_proc_entry;
/* global I2O /proc/i2o entry */
diff --git a/drivers/misc/ibmasm/heartbeat.c b/drivers/misc/ibmasm/heartbeat.c
index f295401fac2..7fd7a43e38d 100644
--- a/drivers/misc/ibmasm/heartbeat.c
+++ b/drivers/misc/ibmasm/heartbeat.c
@@ -52,12 +52,13 @@ static struct notifier_block panic_notifier = { panic_happened, NULL, 1 };
void ibmasm_register_panic_notifier(void)
{
- notifier_chain_register(&panic_notifier_list, &panic_notifier);
+ atomic_notifier_chain_register(&panic_notifier_list, &panic_notifier);
}
void ibmasm_unregister_panic_notifier(void)
{
- notifier_chain_unregister(&panic_notifier_list, &panic_notifier);
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &panic_notifier);
}
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index 5c550fcac2c..26a230b6ff8 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -101,7 +101,7 @@ static struct super_operations ibmasmfs_s_ops = {
.drop_inode = generic_delete_inode,
};
-static struct file_operations *ibmasmfs_dir_ops = &simple_dir_operations;
+static const struct file_operations *ibmasmfs_dir_ops = &simple_dir_operations;
static struct file_system_type ibmasmfs_type = {
.owner = THIS_MODULE,
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2d0ac169a86..f13a539dc16 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3159,7 +3159,7 @@ static int bond_slave_netdev_event(unsigned long event, struct net_device *slave
* bond_netdev_event: handle netdev notifier chain events.
*
* This function receives events for the netdev chain. The caller (an
- * ioctl handler calling notifier_call_chain) holds the necessary
+ * ioctl handler calling blocking_notifier_call_chain) holds the necessary
* locks for us to safely manipulate the slave devices (RTNL lock,
* dev_probe_lock).
*/
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index e7fc28b07e5..7627a75f4f7 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -134,6 +134,7 @@
#include <linux/random.h>
#include <linux/init.h>
#include <linux/if_vlan.h>
+#include <linux/dma-mapping.h>
#include <asm/irq.h>
#include <asm/io.h>
@@ -2932,7 +2933,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
if (id->driver_data & DEV_HAS_HIGH_DMA) {
/* packet format 3: supports 40-bit addressing */
np->desc_ver = DESC_VER_3;
- if (pci_set_dma_mask(pci_dev, 0x0000007fffffffffULL)) {
+ if (pci_set_dma_mask(pci_dev, DMA_39BIT_MASK)) {
printk(KERN_INFO "forcedeth: 64-bit DMA failed, using 32-bit addressing for device %s.\n",
pci_name(pci_dev));
} else {
diff --git a/drivers/net/ioc3-eth.c b/drivers/net/ioc3-eth.c
index 9b8295ee06e..ae71ed57c12 100644
--- a/drivers/net/ioc3-eth.c
+++ b/drivers/net/ioc3-eth.c
@@ -44,6 +44,7 @@
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
+#include <linux/dma-mapping.h>
#ifdef CONFIG_SERIAL_8250
#include <linux/serial_core.h>
@@ -1195,17 +1196,17 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
int err, pci_using_dac;
/* Configure DMA attributes. */
- err = pci_set_dma_mask(pdev, 0xffffffffffffffffULL);
+ err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
if (!err) {
pci_using_dac = 1;
- err = pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL);
+ err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
if (err < 0) {
printk(KERN_ERR "%s: Unable to obtain 64 bit DMA "
"for consistent allocations\n", pci_name(pdev));
goto out;
}
} else {
- err = pci_set_dma_mask(pdev, 0xffffffffULL);
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (err) {
printk(KERN_ERR "%s: No usable DMA configuration, "
"aborting.\n", pci_name(pdev));
diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c
index 83141a3ff54..cc7ff8f00e4 100644
--- a/drivers/net/irda/nsc-ircc.c
+++ b/drivers/net/irda/nsc-ircc.c
@@ -207,7 +207,7 @@ static int __init nsc_ircc_init(void)
/* Register with PnP subsystem to detect disable ports */
ret = pnp_register_driver(&nsc_ircc_pnp_driver);
- if (ret >= 0)
+ if (!ret)
pnp_registered = 1;
ret = -ENODEV;
@@ -812,7 +812,7 @@ static int nsc_ircc_init_39x(nsc_chip_t *chip, chipio_t *info)
int cfg_base = info->cfg_base;
int enabled;
- /* User is shure about his config... accept it. */
+ /* User is sure about his config... accept it. */
IRDA_DEBUG(2, "%s(): nsc_ircc_init_39x (user settings): "
"io=0x%04x, irq=%d, dma=%d\n",
__FUNCTION__, info->fir_base, info->irq, info->dma);
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 0c13795dca3..b79d6e8d304 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -172,7 +172,7 @@ static struct net_device_stats *get_stats(struct net_device *dev)
memset(stats, 0, sizeof(struct net_device_stats));
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
struct net_device_stats *lb_stats;
lb_stats = &per_cpu(loopback_stats, i);
diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c
index 0fede50abd3..8e9b1a537de 100644
--- a/drivers/net/ns83820.c
+++ b/drivers/net/ns83820.c
@@ -1828,10 +1828,10 @@ static int __devinit ns83820_init_one(struct pci_dev *pci_dev, const struct pci_
int using_dac = 0;
/* See if we can set the dma mask early on; failure is fatal. */
- if (sizeof(dma_addr_t) == 8 &&
- !pci_set_dma_mask(pci_dev, 0xffffffffffffffffULL)) {
+ if (sizeof(dma_addr_t) == 8 &&
+ !pci_set_dma_mask(pci_dev, DMA_64BIT_MASK)) {
using_dac = 1;
- } else if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+ } else if (!pci_set_dma_mask(pci_dev, DMA_32BIT_MASK)) {
using_dac = 0;
} else {
printk(KERN_WARNING "ns83820.c: pci_set_dma_mask failed!\n");
diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index 8429ceb0138..b82191d2bee 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -2283,7 +2283,7 @@ static void set_rx_mode(struct net_device *net_dev)
int i, table_entries;
u32 rx_mode;
- /* 635 Hash Table entires = 256(2^16) */
+ /* 635 Hash Table entries = 256(2^16) */
if((sis_priv->chipset_rev >= SIS635A_900_REV) ||
(sis_priv->chipset_rev == SIS900B_900_REV))
table_entries = 16;
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index ee48bfd6734..d1a86a080a6 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -513,7 +513,7 @@ struct mii_phy {
u_char *rst; /* Start of reset sequence in SROM */
u_int mc; /* Media Capabilities */
u_int ana; /* NWay Advertisement */
- u_int fdx; /* Full DupleX capabilites for each media */
+ u_int fdx; /* Full DupleX capabilities for each media */
u_int ttm; /* Transmit Threshold Mode for each media */
u_int mci; /* 21142 MII Connector Interrupt info */
};
diff --git a/drivers/net/tulip/pnic2.c b/drivers/net/tulip/pnic2.c
index 55f4a9a631b..ab985023fcc 100644
--- a/drivers/net/tulip/pnic2.c
+++ b/drivers/net/tulip/pnic2.c
@@ -199,7 +199,7 @@ void pnic2_lnk_change(struct net_device *dev, int csr5)
/* negotiation ended successfully */
/* get the link partners reply and mask out all but
- * bits 24-21 which show the partners capabilites
+ * bits 24-21 which show the partners capabilities
* and match those to what we advertised
*
* then begin to interpret the results of the negotiation.
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index cde35dd8790..c1ce87a5f8d 100644
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -208,7 +208,7 @@ static const struct typhoon_card_info typhoon_card_info[] __devinitdata = {
};
/* Notes on the new subsystem numbering scheme:
- * bits 0-1 indicate crypto capabilites: (0) variable, (1) DES, or (2) 3DES
+ * bits 0-1 indicate crypto capabilities: (0) variable, (1) DES, or (2) 3DES
* bit 4 indicates if this card has secured firmware (we don't support it)
* bit 8 indicates if this is a (0) copper or (1) fiber card
* bits 12-16 indicate card type: (0) client and (1) server
@@ -788,7 +788,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
/* we have two rings to choose from, but we only use txLo for now
* If we start using the Hi ring as well, we'll need to update
* typhoon_stop_runtime(), typhoon_interrupt(), typhoon_num_free_tx(),
- * and TXHI_ENTIRES to match, as well as update the TSO code below
+ * and TXHI_ENTRIES to match, as well as update the TSO code below
* to get the right DMA address
*/
txRing = &tp->txLoRing;
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index 9d3b51c3ef5..29a756dd979 100644
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -577,8 +577,8 @@ static int __devinit wanxl_pci_init_one(struct pci_dev *pdev,
We set both dma_mask and consistent_dma_mask to 28 bits
and pray pci_alloc_consistent() will use this info. It should
work on most platforms */
- if (pci_set_consistent_dma_mask(pdev, 0x0FFFFFFF) ||
- pci_set_dma_mask(pdev, 0x0FFFFFFF)) {
+ if (pci_set_consistent_dma_mask(pdev, DMA_28BIT_MASK) ||
+ pci_set_dma_mask(pdev, DMA_28BIT_MASK)) {
printk(KERN_ERR "wanXL: No usable DMA configuration\n");
return -EIO;
}
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index 6fd0bf73683..8dfdfbd5966 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -3858,7 +3858,7 @@ static int orinoco_ioctl_setscan(struct net_device *dev,
unsigned long flags;
/* Note : you may have realised that, as this is a SET operation,
- * this is priviledged and therefore a normal user can't
+ * this is privileged and therefore a normal user can't
* perform scanning.
* This is not an error, while the device perform scanning,
* traffic doesn't flow, so it's a perfect DoS...
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index e5bb9f5ae42..989599ad33e 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -747,7 +747,7 @@ prism54_get_essid(struct net_device *ndev, struct iw_request_info *info,
if (essid->length) {
dwrq->flags = 1; /* set ESSID to ON for Wireless Extensions */
- /* if it is to big, trunk it */
+ /* if it is too big, trunk it */
dwrq->length = min((u8)IW_ESSID_MAX_SIZE, essid->length);
} else {
dwrq->flags = 0;
diff --git a/drivers/net/wireless/prism54/islpci_hotplug.c b/drivers/net/wireless/prism54/islpci_hotplug.c
index b41d666fea3..bfa0cc319a0 100644
--- a/drivers/net/wireless/prism54/islpci_hotplug.c
+++ b/drivers/net/wireless/prism54/islpci_hotplug.c
@@ -22,6 +22,7 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/init.h> /* For __init, __exit */
+#include <linux/dma-mapping.h>
#include "prismcompat.h"
#include "islpci_dev.h"
@@ -124,7 +125,7 @@ prism54_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
/* enable PCI DMA */
- if (pci_set_dma_mask(pdev, 0xffffffff)) {
+ if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
printk(KERN_ERR "%s: 32-bit PCI DMA not supported", DRV_NAME);
goto do_pci_disable_device;
}
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 330d3869b41..fc4bc9b94c7 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -217,11 +217,10 @@ static void oprofile_end_trace(struct oprofile_cpu_buffer * cpu_buf)
cpu_buf->tracing = 0;
}
-void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel)
{
struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
- unsigned long pc = profile_pc(regs);
- int is_kernel = !user_mode(regs);
if (!backtrace_depth) {
log_sample(cpu_buf, pc, is_kernel, event);
@@ -238,6 +237,14 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
oprofile_end_trace(cpu_buf);
}
+void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+{
+ int is_kernel = !user_mode(regs);
+ unsigned long pc = profile_pc(regs);
+
+ oprofile_add_ext_sample(pc, regs, event, is_kernel);
+}
+
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
{
struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index e94b1e4a2a8..f0acb661c25 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -22,7 +22,7 @@ void oprofile_reset_stats(void)
struct oprofile_cpu_buffer * cpu_buf;
int i;
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
cpu_buf = &cpu_buffer[i];
cpu_buf->sample_received = 0;
cpu_buf->sample_lost_overflow = 0;
@@ -46,7 +46,7 @@ void oprofile_create_stats_files(struct super_block * sb, struct dentry * root)
if (!dir)
return;
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
cpu_buf = &cpu_buffer[i];
snprintf(buf, 10, "cpu%d", i);
cpudir = oprofilefs_mkdir(sb, dir, buf);
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index d6bae699749..b62da9b0cbf 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -130,7 +130,7 @@ static struct file_operations ulong_ro_fops = {
static struct dentry * __oprofilefs_create_file(struct super_block * sb,
- struct dentry * root, char const * name, struct file_operations * fops,
+ struct dentry * root, char const * name, const struct file_operations * fops,
int perm)
{
struct dentry * dentry;
@@ -203,7 +203,7 @@ int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root,
int oprofilefs_create_file(struct super_block * sb, struct dentry * root,
- char const * name, struct file_operations * fops)
+ char const * name, const struct file_operations * fops)
{
if (!__oprofilefs_create_file(sb, root, name, fops, 0644))
return -EFAULT;
@@ -212,7 +212,7 @@ int oprofilefs_create_file(struct super_block * sb, struct dentry * root,
int oprofilefs_create_file_perm(struct super_block * sb, struct dentry * root,
- char const * name, struct file_operations * fops, int perm)
+ char const * name, const struct file_operations * fops, int perm)
{
if (!__oprofilefs_create_file(sb, root, name, fops, perm))
return -EFAULT;
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 3627a2d7f79..298f2ddb2c1 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -499,11 +499,16 @@ static int led_halt(struct notifier_block *, unsigned long, void *);
static struct notifier_block led_notifier = {
.notifier_call = led_halt,
};
+static int notifier_disabled = 0;
static int led_halt(struct notifier_block *nb, unsigned long event, void *buf)
{
char *txt;
-
+
+ if (notifier_disabled)
+ return NOTIFY_OK;
+
+ notifier_disabled = 1;
switch (event) {
case SYS_RESTART: txt = "SYSTEM RESTART";
break;
@@ -527,7 +532,6 @@ static int led_halt(struct notifier_block *nb, unsigned long event, void *buf)
if (led_func_ptr)
led_func_ptr(0xff); /* turn all LEDs ON */
- unregister_reboot_notifier(&led_notifier);
return NOTIFY_OK;
}
@@ -758,6 +762,12 @@ not_found:
return 1;
}
+static void __exit led_exit(void)
+{
+ unregister_reboot_notifier(&led_notifier);
+ return;
+}
+
#ifdef CONFIG_PROC_FS
module_init(led_create_procfs)
#endif
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 54b2b7f20b9..0bcab83b408 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -251,7 +251,8 @@ static int __init power_init(void)
}
/* Register a call for panic conditions. */
- notifier_chain_register(&panic_notifier_list, &parisc_panic_block);
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &parisc_panic_block);
tasklet_enable(&power_tasklet);
@@ -264,7 +265,8 @@ static void __exit power_exit(void)
return;
tasklet_disable(&power_tasklet);
- notifier_chain_unregister(&panic_notifier_list, &parisc_panic_block);
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &parisc_panic_block);
power_tasklet.func = NULL;
pdc_soft_power_button(0);
}
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 9302b8fd746..d5890027f8a 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -3126,9 +3126,9 @@ parport_pc_find_isa_ports (int autoirq, int autodma)
* autoirq is PARPORT_IRQ_NONE, PARPORT_IRQ_AUTO, or PARPORT_IRQ_PROBEONLY
* autodma is PARPORT_DMA_NONE or PARPORT_DMA_AUTO
*/
-static int __init parport_pc_find_ports (int autoirq, int autodma)
+static void __init parport_pc_find_ports (int autoirq, int autodma)
{
- int count = 0, r;
+ int count = 0, err;
#ifdef CONFIG_PARPORT_PC_SUPERIO
detect_and_report_winbond ();
@@ -3140,23 +3140,17 @@ static int __init parport_pc_find_ports (int autoirq, int autodma)
/* PnP ports, skip detection if SuperIO already found them */
if (!count) {
- r = pnp_register_driver (&parport_pc_pnp_driver);
- if (r >= 0) {
+ err = pnp_register_driver (&parport_pc_pnp_driver);
+ if (!err)
pnp_registered_parport = 1;
- count += r;
- }
}
/* ISA ports and whatever (see asm/parport.h). */
- count += parport_pc_find_nonpci_ports (autoirq, autodma);
-
- r = pci_register_driver (&parport_pc_pci_driver);
- if (r)
- return r;
- pci_registered_parport = 1;
- count += 1;
+ parport_pc_find_nonpci_ports (autoirq, autodma);
- return count;
+ err = pci_register_driver (&parport_pc_pci_driver);
+ if (!err)
+ pci_registered_parport = 1;
}
/*
@@ -3381,8 +3375,6 @@ __setup("parport_init_mode=",parport_init_mode_setup);
static int __init parport_pc_init(void)
{
- int count = 0;
-
if (parse_parport_params())
return -EINVAL;
@@ -3395,12 +3387,11 @@ static int __init parport_pc_init(void)
break;
if ((io_hi[i]) == PARPORT_IOHI_AUTO)
io_hi[i] = 0x400 + io[i];
- if (parport_pc_probe_port(io[i], io_hi[i],
- irqval[i], dmaval[i], NULL))
- count++;
+ parport_pc_probe_port(io[i], io_hi[i],
+ irqval[i], dmaval[i], NULL);
}
} else
- count += parport_pc_find_ports (irqval[0], dmaval[0]);
+ parport_pc_find_ports (irqval[0], dmaval[0]);
return 0;
}
diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
index b68eef25161..bb19c64073c 100644
--- a/drivers/pnp/card.c
+++ b/drivers/pnp/card.c
@@ -47,7 +47,7 @@ static void card_remove(struct pnp_dev * dev)
{
dev->card_link = NULL;
}
-
+
static void card_remove_first(struct pnp_dev * dev)
{
struct pnp_card_driver * drv = to_pnp_card_driver(dev->driver);
@@ -361,7 +361,7 @@ static int card_resume(struct pnp_dev *dev)
int pnp_register_card_driver(struct pnp_card_driver * drv)
{
- int count;
+ int error;
struct list_head *pos, *temp;
drv->link.name = drv->name;
@@ -372,21 +372,19 @@ int pnp_register_card_driver(struct pnp_card_driver * drv)
drv->link.suspend = drv->suspend ? card_suspend : NULL;
drv->link.resume = drv->resume ? card_resume : NULL;
- count = pnp_register_driver(&drv->link);
- if (count < 0)
- return count;
+ error = pnp_register_driver(&drv->link);
+ if (error < 0)
+ return error;
spin_lock(&pnp_lock);
list_add_tail(&drv->global_list, &pnp_card_drivers);
spin_unlock(&pnp_lock);
- count = 0;
-
list_for_each_safe(pos,temp,&pnp_cards){
struct pnp_card *card = list_entry(pos, struct pnp_card, global_list);
- count += card_probe(card,drv);
+ card_probe(card,drv);
}
- return count;
+ return 0;
}
/**
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 7cafacdd12b..e54c1538319 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -201,31 +201,14 @@ struct bus_type pnp_bus_type = {
.resume = pnp_bus_resume,
};
-
-static int count_devices(struct device * dev, void * c)
-{
- int * count = c;
- (*count)++;
- return 0;
-}
-
int pnp_register_driver(struct pnp_driver *drv)
{
- int count;
-
pnp_dbg("the driver '%s' has been registered", drv->name);
drv->driver.name = drv->name;
drv->driver.bus = &pnp_bus_type;
- count = driver_register(&drv->driver);
-
- /* get the number of initial matches */
- if (count >= 0){
- count = 0;
- driver_for_each_device(&drv->driver, NULL, &count, count_devices);
- }
- return count;
+ return driver_register(&drv->driver);
}
void pnp_unregister_driver(struct pnp_driver *drv)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
new file mode 100644
index 00000000000..929dd809057
--- /dev/null
+++ b/drivers/rtc/Kconfig
@@ -0,0 +1,165 @@
+\#
+# RTC class/drivers configuration
+#
+
+menu "Real Time Clock"
+
+config RTC_LIB
+ tristate
+
+config RTC_CLASS
+ tristate "RTC class"
+ depends on EXPERIMENTAL
+ default n
+ select RTC_LIB
+ help
+ Generic RTC class support. If you say yes here, you will
+ be allowed to plug one or more RTCs to your system. You will
+ probably want to enable one of more of the interfaces below.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-class.
+
+config RTC_HCTOSYS
+ bool "Set system time from RTC on startup"
+ depends on RTC_CLASS = y
+ default y
+ help
+ If you say yes here, the system time will be set using
+ the value read from the specified RTC device. This is useful
+ in order to avoid unnecessary fschk runs.
+
+config RTC_HCTOSYS_DEVICE
+ string "The RTC to read the time from"
+ depends on RTC_HCTOSYS = y
+ default "rtc0"
+ help
+ The RTC device that will be used as the source for
+ the system time, usually rtc0.
+
+comment "RTC interfaces"
+ depends on RTC_CLASS
+
+config RTC_INTF_SYSFS
+ tristate "sysfs"
+ depends on RTC_CLASS && SYSFS
+ default RTC_CLASS
+ help
+ Say yes here if you want to use your RTC using the sysfs
+ interface, /sys/class/rtc/rtcX .
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-sysfs.
+
+config RTC_INTF_PROC
+ tristate "proc"
+ depends on RTC_CLASS && PROC_FS
+ default RTC_CLASS
+ help
+ Say yes here if you want to use your RTC using the proc
+ interface, /proc/driver/rtc .
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-proc.
+
+config RTC_INTF_DEV
+ tristate "dev"
+ depends on RTC_CLASS
+ default RTC_CLASS
+ help
+ Say yes here if you want to use your RTC using the dev
+ interface, /dev/rtc .
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-dev.
+
+comment "RTC drivers"
+ depends on RTC_CLASS
+
+config RTC_DRV_X1205
+ tristate "Xicor/Intersil X1205"
+ depends on RTC_CLASS && I2C
+ help
+ If you say yes here you get support for the
+ Xicor/Intersil X1205 RTC chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-x1205.
+
+config RTC_DRV_DS1672
+ tristate "Dallas/Maxim DS1672"
+ depends on RTC_CLASS && I2C
+ help
+ If you say yes here you get support for the
+ Dallas/Maxim DS1672 timekeeping chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ds1672.
+
+config RTC_DRV_PCF8563
+ tristate "Philips PCF8563/Epson RTC8564"
+ depends on RTC_CLASS && I2C
+ help
+ If you say yes here you get support for the
+ Philips PCF8563 RTC chip. The Epson RTC8564
+ should work as well.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-pcf8563.
+
+config RTC_DRV_RS5C372
+ tristate "Ricoh RS5C372A/B"
+ depends on RTC_CLASS && I2C
+ help
+ If you say yes here you get support for the
+ Ricoh RS5C372A and RS5C372B RTC chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-rs5c372.
+
+config RTC_DRV_M48T86
+ tristate "ST M48T86/Dallas DS12887"
+ depends on RTC_CLASS
+ help
+ If you say Y here you will get support for the
+ ST M48T86 and Dallas DS12887 RTC chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-m48t86.
+
+config RTC_DRV_EP93XX
+ tristate "Cirrus Logic EP93XX"
+ depends on RTC_CLASS && ARCH_EP93XX
+ help
+ If you say yes here you get support for the
+ RTC embedded in the Cirrus Logic EP93XX processors.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ep93xx.
+
+config RTC_DRV_SA1100
+ tristate "SA11x0/PXA2xx"
+ depends on RTC_CLASS && (ARCH_SA1100 || ARCH_PXA)
+ help
+ If you say Y here you will get access to the real time clock
+ built into your SA11x0 or PXA2xx CPU.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rtc-sa1100.
+
+config RTC_DRV_TEST
+ tristate "Test driver/device"
+ depends on RTC_CLASS
+ help
+ If you say yes here you get support for the
+ RTC test driver. It's a software RTC which can be
+ used to test the RTC subsystem APIs. It gets
+ the time from the system clock.
+ You want this driver only if you are doing development
+ on the RTC subsystem. Please read the source code
+ for further details.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-test.
+
+endmenu
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
new file mode 100644
index 00000000000..8d4c7fe88d5
--- /dev/null
+++ b/drivers/rtc/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for RTC class/drivers.
+#
+
+obj-$(CONFIG_RTC_LIB) += rtc-lib.o
+obj-$(CONFIG_RTC_HCTOSYS) += hctosys.o
+obj-$(CONFIG_RTC_CLASS) += rtc-core.o
+rtc-core-y := class.o interface.o
+
+obj-$(CONFIG_RTC_INTF_SYSFS) += rtc-sysfs.o
+obj-$(CONFIG_RTC_INTF_PROC) += rtc-proc.o
+obj-$(CONFIG_RTC_INTF_DEV) += rtc-dev.o
+
+obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o
+obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o
+obj-$(CONFIG_RTC_DRV_DS1672) += rtc-ds1672.o
+obj-$(CONFIG_RTC_DRV_PCF8563) += rtc-pcf8563.o
+obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o
+obj-$(CONFIG_RTC_DRV_M48T86) += rtc-m48t86.o
+obj-$(CONFIG_RTC_DRV_EP93XX) += rtc-ep93xx.o
+obj-$(CONFIG_RTC_DRV_SA1100) += rtc-sa1100.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
new file mode 100644
index 00000000000..8533936d50d
--- /dev/null
+++ b/drivers/rtc/class.c
@@ -0,0 +1,145 @@
+/*
+ * RTC subsystem, base class
+ *
+ * Copyright (C) 2005 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * class skeleton from drivers/hwmon/hwmon.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/kdev_t.h>
+#include <linux/idr.h>
+
+static DEFINE_IDR(rtc_idr);
+static DEFINE_MUTEX(idr_lock);
+struct class *rtc_class;
+
+static void rtc_device_release(struct class_device *class_dev)
+{
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+ mutex_lock(&idr_lock);
+ idr_remove(&rtc_idr, rtc->id);
+ mutex_unlock(&idr_lock);
+ kfree(rtc);
+}
+
+/**
+ * rtc_device_register - register w/ RTC class
+ * @dev: the device to register
+ *
+ * rtc_device_unregister() must be called when the class device is no
+ * longer needed.
+ *
+ * Returns the pointer to the new struct class device.
+ */
+struct rtc_device *rtc_device_register(const char *name, struct device *dev,
+ struct rtc_class_ops *ops,
+ struct module *owner)
+{
+ struct rtc_device *rtc;
+ int id, err;
+
+ if (idr_pre_get(&rtc_idr, GFP_KERNEL) == 0) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+
+ mutex_lock(&idr_lock);
+ err = idr_get_new(&rtc_idr, NULL, &id);
+ mutex_unlock(&idr_lock);
+
+ if (err < 0)
+ goto exit;
+
+ id = id & MAX_ID_MASK;
+
+ rtc = kzalloc(sizeof(struct rtc_device), GFP_KERNEL);
+ if (rtc == NULL) {
+ err = -ENOMEM;
+ goto exit_idr;
+ }
+
+ rtc->id = id;
+ rtc->ops = ops;
+ rtc->owner = owner;
+ rtc->class_dev.dev = dev;
+ rtc->class_dev.class = rtc_class;
+ rtc->class_dev.release = rtc_device_release;
+
+ mutex_init(&rtc->ops_lock);
+ spin_lock_init(&rtc->irq_lock);
+ spin_lock_init(&rtc->irq_task_lock);
+
+ strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE);
+ snprintf(rtc->class_dev.class_id, BUS_ID_SIZE, "rtc%d", id);
+
+ err = class_device_register(&rtc->class_dev);
+ if (err)
+ goto exit_kfree;
+
+ dev_info(dev, "rtc core: registered %s as %s\n",
+ rtc->name, rtc->class_dev.class_id);
+
+ return rtc;
+
+exit_kfree:
+ kfree(rtc);
+
+exit_idr:
+ idr_remove(&rtc_idr, id);
+
+exit:
+ return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(rtc_device_register);
+
+
+/**
+ * rtc_device_unregister - removes the previously registered RTC class device
+ *
+ * @rtc: the RTC class device to destroy
+ */
+void rtc_device_unregister(struct rtc_device *rtc)
+{
+ mutex_lock(&rtc->ops_lock);
+ rtc->ops = NULL;
+ mutex_unlock(&rtc->ops_lock);
+ class_device_unregister(&rtc->class_dev);
+}
+EXPORT_SYMBOL_GPL(rtc_device_unregister);
+
+int rtc_interface_register(struct class_interface *intf)
+{
+ intf->class = rtc_class;
+ return class_interface_register(intf);
+}
+EXPORT_SYMBOL_GPL(rtc_interface_register);
+
+static int __init rtc_init(void)
+{
+ rtc_class = class_create(THIS_MODULE, "rtc");
+ if (IS_ERR(rtc_class)) {
+ printk(KERN_ERR "%s: couldn't create class\n", __FILE__);
+ return PTR_ERR(rtc_class);
+ }
+ return 0;
+}
+
+static void __exit rtc_exit(void)
+{
+ class_destroy(rtc_class);
+}
+
+module_init(rtc_init);
+module_exit(rtc_exit);
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towerteh.it>");
+MODULE_DESCRIPTION("RTC class support");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
new file mode 100644
index 00000000000..d02fe9a0001
--- /dev/null
+++ b/drivers/rtc/hctosys.c
@@ -0,0 +1,69 @@
+/*
+ * RTC subsystem, initialize system time on startup
+ *
+ * Copyright (C) 2005 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/rtc.h>
+
+/* IMPORTANT: the RTC only stores whole seconds. It is arbitrary
+ * whether it stores the most close value or the value with partial
+ * seconds truncated. However, it is important that we use it to store
+ * the truncated value. This is because otherwise it is necessary,
+ * in an rtc sync function, to read both xtime.tv_sec and
+ * xtime.tv_nsec. On some processors (i.e. ARM), an atomic read
+ * of >32bits is not possible. So storing the most close value would
+ * slow down the sync API. So here we have the truncated value and
+ * the best guess is to add 0.5s.
+ */
+
+static int __init rtc_hctosys(void)
+{
+ int err;
+ struct rtc_time tm;
+ struct class_device *class_dev = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
+
+ if (class_dev == NULL) {
+ printk("%s: unable to open rtc device (%s)\n",
+ __FILE__, CONFIG_RTC_HCTOSYS_DEVICE);
+ return -ENODEV;
+ }
+
+ err = rtc_read_time(class_dev, &tm);
+ if (err == 0) {
+ err = rtc_valid_tm(&tm);
+ if (err == 0) {
+ struct timespec tv;
+
+ tv.tv_nsec = NSEC_PER_SEC >> 1;
+
+ rtc_tm_to_time(&tm, &tv.tv_sec);
+
+ do_settimeofday(&tv);
+
+ dev_info(class_dev->dev,
+ "setting the system clock to "
+ "%d-%02d-%02d %02d:%02d:%02d (%u)\n",
+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+ tm.tm_hour, tm.tm_min, tm.tm_sec,
+ (unsigned int) tv.tv_sec);
+ }
+ else
+ dev_err(class_dev->dev,
+ "hctosys: invalid date/time\n");
+ }
+ else
+ dev_err(class_dev->dev,
+ "hctosys: unable to read the hardware clock\n");
+
+ rtc_class_close(class_dev);
+
+ return 0;
+}
+
+late_initcall(rtc_hctosys);
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
new file mode 100644
index 00000000000..56e490709b8
--- /dev/null
+++ b/drivers/rtc/interface.c
@@ -0,0 +1,277 @@
+/*
+ * RTC subsystem, interface functions
+ *
+ * Copyright (C) 2005 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on arch/arm/common/rtctime.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/rtc.h>
+
+int rtc_read_time(struct class_device *class_dev, struct rtc_time *tm)
+{
+ int err;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return -EBUSY;
+
+ if (!rtc->ops)
+ err = -ENODEV;
+ else if (!rtc->ops->read_time)
+ err = -EINVAL;
+ else {
+ memset(tm, 0, sizeof(struct rtc_time));
+ err = rtc->ops->read_time(class_dev->dev, tm);
+ }
+
+ mutex_unlock(&rtc->ops_lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_read_time);
+
+int rtc_set_time(struct class_device *class_dev, struct rtc_time *tm)
+{
+ int err;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ err = rtc_valid_tm(tm);
+ if (err != 0)
+ return err;
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return -EBUSY;
+
+ if (!rtc->ops)
+ err = -ENODEV;
+ else if (!rtc->ops->set_time)
+ err = -EINVAL;
+ else
+ err = rtc->ops->set_time(class_dev->dev, tm);
+
+ mutex_unlock(&rtc->ops_lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_set_time);
+
+int rtc_set_mmss(struct class_device *class_dev, unsigned long secs)
+{
+ int err;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return -EBUSY;
+
+ if (!rtc->ops)
+ err = -ENODEV;
+ else if (rtc->ops->set_mmss)
+ err = rtc->ops->set_mmss(class_dev->dev, secs);
+ else if (rtc->ops->read_time && rtc->ops->set_time) {
+ struct rtc_time new, old;
+
+ err = rtc->ops->read_time(class_dev->dev, &old);
+ if (err == 0) {
+ rtc_time_to_tm(secs, &new);
+
+ /*
+ * avoid writing when we're going to change the day of
+ * the month. We will retry in the next minute. This
+ * basically means that if the RTC must not drift
+ * by more than 1 minute in 11 minutes.
+ */
+ if (!((old.tm_hour == 23 && old.tm_min == 59) ||
+ (new.tm_hour == 23 && new.tm_min == 59)))
+ err = rtc->ops->set_time(class_dev->dev, &new);
+ }
+ }
+ else
+ err = -EINVAL;
+
+ mutex_unlock(&rtc->ops_lock);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_set_mmss);
+
+int rtc_read_alarm(struct class_device *class_dev, struct rtc_wkalrm *alarm)
+{
+ int err;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return -EBUSY;
+
+ if (rtc->ops == NULL)
+ err = -ENODEV;
+ else if (!rtc->ops->read_alarm)
+ err = -EINVAL;
+ else {
+ memset(alarm, 0, sizeof(struct rtc_wkalrm));
+ err = rtc->ops->read_alarm(class_dev->dev, alarm);
+ }
+
+ mutex_unlock(&rtc->ops_lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_read_alarm);
+
+int rtc_set_alarm(struct class_device *class_dev, struct rtc_wkalrm *alarm)
+{
+ int err;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return -EBUSY;
+
+ if (!rtc->ops)
+ err = -ENODEV;
+ else if (!rtc->ops->set_alarm)
+ err = -EINVAL;
+ else
+ err = rtc->ops->set_alarm(class_dev->dev, alarm);
+
+ mutex_unlock(&rtc->ops_lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_set_alarm);
+
+void rtc_update_irq(struct class_device *class_dev,
+ unsigned long num, unsigned long events)
+{
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ spin_lock(&rtc->irq_lock);
+ rtc->irq_data = (rtc->irq_data + (num << 8)) | events;
+ spin_unlock(&rtc->irq_lock);
+
+ spin_lock(&rtc->irq_task_lock);
+ if (rtc->irq_task)
+ rtc->irq_task->func(rtc->irq_task->private_data);
+ spin_unlock(&rtc->irq_task_lock);
+
+ wake_up_interruptible(&rtc->irq_queue);
+ kill_fasync(&rtc->async_queue, SIGIO, POLL_IN);
+}
+EXPORT_SYMBOL_GPL(rtc_update_irq);
+
+struct class_device *rtc_class_open(char *name)
+{
+ struct class_device *class_dev = NULL,
+ *class_dev_tmp;
+
+ down(&rtc_class->sem);
+ list_for_each_entry(class_dev_tmp, &rtc_class->children, node) {
+ if (strncmp(class_dev_tmp->class_id, name, BUS_ID_SIZE) == 0) {
+ class_dev = class_dev_tmp;
+ break;
+ }
+ }
+
+ if (class_dev) {
+ if (!try_module_get(to_rtc_device(class_dev)->owner))
+ class_dev = NULL;
+ }
+ up(&rtc_class->sem);
+
+ return class_dev;
+}
+EXPORT_SYMBOL_GPL(rtc_class_open);
+
+void rtc_class_close(struct class_device *class_dev)
+{
+ module_put(to_rtc_device(class_dev)->owner);
+}
+EXPORT_SYMBOL_GPL(rtc_class_close);
+
+int rtc_irq_register(struct class_device *class_dev, struct rtc_task *task)
+{
+ int retval = -EBUSY;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ if (task == NULL || task->func == NULL)
+ return -EINVAL;
+
+ spin_lock(&rtc->irq_task_lock);
+ if (rtc->irq_task == NULL) {
+ rtc->irq_task = task;
+ retval = 0;
+ }
+ spin_unlock(&rtc->irq_task_lock);
+
+ return retval;
+}
+EXPORT_SYMBOL_GPL(rtc_irq_register);
+
+void rtc_irq_unregister(struct class_device *class_dev, struct rtc_task *task)
+{
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ spin_lock(&rtc->irq_task_lock);
+ if (rtc->irq_task == task)
+ rtc->irq_task = NULL;
+ spin_unlock(&rtc->irq_task_lock);
+}
+EXPORT_SYMBOL_GPL(rtc_irq_unregister);
+
+int rtc_irq_set_state(struct class_device *class_dev, struct rtc_task *task, int enabled)
+{
+ int err = 0;
+ unsigned long flags;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ spin_lock_irqsave(&rtc->irq_task_lock, flags);
+ if (rtc->irq_task != task)
+ err = -ENXIO;
+ spin_unlock_irqrestore(&rtc->irq_task_lock, flags);
+
+ if (err == 0)
+ err = rtc->ops->irq_set_state(class_dev->dev, enabled);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_irq_set_state);
+
+int rtc_irq_set_freq(struct class_device *class_dev, struct rtc_task *task, int freq)
+{
+ int err = 0, tmp = 0;
+ unsigned long flags;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ /* allowed range is 2-8192 */
+ if (freq < 2 || freq > 8192)
+ return -EINVAL;
+/*
+ FIXME: this does not belong here, will move where appropriate
+ at a later stage. It cannot hurt right now, trust me :)
+ if ((freq > rtc_max_user_freq) && (!capable(CAP_SYS_RESOURCE)))
+ return -EACCES;
+*/
+ /* check if freq is a power of 2 */
+ while (freq > (1 << tmp))
+ tmp++;
+
+ if (freq != (1 << tmp))
+ return -EINVAL;
+
+ spin_lock_irqsave(&rtc->irq_task_lock, flags);
+ if (rtc->irq_task != task)
+ err = -ENXIO;
+ spin_unlock_irqrestore(&rtc->irq_task_lock, flags);
+
+ if (err == 0) {
+ err = rtc->ops->irq_set_freq(class_dev->dev, freq);
+ if (err == 0)
+ rtc->irq_freq = freq;
+ }
+ return err;
+}
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
new file mode 100644
index 00000000000..b1e3e6179e5
--- /dev/null
+++ b/drivers/rtc/rtc-dev.c
@@ -0,0 +1,382 @@
+/*
+ * RTC subsystem, dev interface
+ *
+ * Copyright (C) 2005 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on arch/arm/common/rtctime.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+
+static struct class *rtc_dev_class;
+static dev_t rtc_devt;
+
+#define RTC_DEV_MAX 16 /* 16 RTCs should be enough for everyone... */
+
+static int rtc_dev_open(struct inode *inode, struct file *file)
+{
+ int err;
+ struct rtc_device *rtc = container_of(inode->i_cdev,
+ struct rtc_device, char_dev);
+ struct rtc_class_ops *ops = rtc->ops;
+
+ /* We keep the lock as long as the device is in use
+ * and return immediately if busy
+ */
+ if (!(mutex_trylock(&rtc->char_lock)))
+ return -EBUSY;
+
+ file->private_data = &rtc->class_dev;
+
+ err = ops->open ? ops->open(rtc->class_dev.dev) : 0;
+ if (err == 0) {
+ spin_lock_irq(&rtc->irq_lock);
+ rtc->irq_data = 0;
+ spin_unlock_irq(&rtc->irq_lock);
+
+ return 0;
+ }
+
+ /* something has gone wrong, release the lock */
+ mutex_unlock(&rtc->char_lock);
+ return err;
+}
+
+
+static ssize_t
+rtc_dev_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
+{
+ struct rtc_device *rtc = to_rtc_device(file->private_data);
+
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long data;
+ ssize_t ret;
+
+ if (count < sizeof(unsigned long))
+ return -EINVAL;
+
+ add_wait_queue(&rtc->irq_queue, &wait);
+ do {
+ __set_current_state(TASK_INTERRUPTIBLE);
+
+ spin_lock_irq(&rtc->irq_lock);
+ data = rtc->irq_data;
+ rtc->irq_data = 0;
+ spin_unlock_irq(&rtc->irq_lock);
+
+ if (data != 0) {
+ ret = 0;
+ break;
+ }
+ if (file->f_flags & O_NONBLOCK) {
+ ret = -EAGAIN;
+ break;
+ }
+ if (signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+ schedule();
+ } while (1);
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&rtc->irq_queue, &wait);
+
+ if (ret == 0) {
+ /* Check for any data updates */
+ if (rtc->ops->read_callback)
+ data = rtc->ops->read_callback(rtc->class_dev.dev, data);
+
+ ret = put_user(data, (unsigned long __user *)buf);
+ if (ret == 0)
+ ret = sizeof(unsigned long);
+ }
+ return ret;
+}
+
+static unsigned int rtc_dev_poll(struct file *file, poll_table *wait)
+{
+ struct rtc_device *rtc = to_rtc_device(file->private_data);
+ unsigned long data;
+
+ poll_wait(file, &rtc->irq_queue, wait);
+
+ data = rtc->irq_data;
+
+ return (data != 0) ? (POLLIN | POLLRDNORM) : 0;
+}
+
+static int rtc_dev_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int err = 0;
+ struct class_device *class_dev = file->private_data;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+ struct rtc_class_ops *ops = rtc->ops;
+ struct rtc_time tm;
+ struct rtc_wkalrm alarm;
+ void __user *uarg = (void __user *) arg;
+
+ /* avoid conflicting IRQ users */
+ if (cmd == RTC_PIE_ON || cmd == RTC_PIE_OFF || cmd == RTC_IRQP_SET) {
+ spin_lock(&rtc->irq_task_lock);
+ if (rtc->irq_task)
+ err = -EBUSY;
+ spin_unlock(&rtc->irq_task_lock);
+
+ if (err < 0)
+ return err;
+ }
+
+ /* try the driver's ioctl interface */
+ if (ops->ioctl) {
+ err = ops->ioctl(class_dev->dev, cmd, arg);
+ if (err != -EINVAL)
+ return err;
+ }
+
+ /* if the driver does not provide the ioctl interface
+ * or if that particular ioctl was not implemented
+ * (-EINVAL), we will try to emulate here.
+ */
+
+ switch (cmd) {
+ case RTC_ALM_READ:
+ err = rtc_read_alarm(class_dev, &alarm);
+ if (err < 0)
+ return err;
+
+ if (copy_to_user(uarg, &alarm.time, sizeof(tm)))
+ return -EFAULT;
+ break;
+
+ case RTC_ALM_SET:
+ if (copy_from_user(&alarm.time, uarg, sizeof(tm)))
+ return -EFAULT;
+
+ alarm.enabled = 0;
+ alarm.pending = 0;
+ alarm.time.tm_mday = -1;
+ alarm.time.tm_mon = -1;
+ alarm.time.tm_year = -1;
+ alarm.time.tm_wday = -1;
+ alarm.time.tm_yday = -1;
+ alarm.time.tm_isdst = -1;
+ err = rtc_set_alarm(class_dev, &alarm);
+ break;
+
+ case RTC_RD_TIME:
+ err = rtc_read_time(class_dev, &tm);
+ if (err < 0)
+ return err;
+
+ if (copy_to_user(uarg, &tm, sizeof(tm)))
+ return -EFAULT;
+ break;
+
+ case RTC_SET_TIME:
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+
+ if (copy_from_user(&tm, uarg, sizeof(tm)))
+ return -EFAULT;
+
+ err = rtc_set_time(class_dev, &tm);
+ break;
+#if 0
+ case RTC_EPOCH_SET:
+#ifndef rtc_epoch
+ /*
+ * There were no RTC clocks before 1900.
+ */
+ if (arg < 1900) {
+ err = -EINVAL;
+ break;
+ }
+ if (!capable(CAP_SYS_TIME)) {
+ err = -EACCES;
+ break;
+ }
+ rtc_epoch = arg;
+ err = 0;
+#endif
+ break;
+
+ case RTC_EPOCH_READ:
+ err = put_user(rtc_epoch, (unsigned long __user *)uarg);
+ break;
+#endif
+ case RTC_WKALM_SET:
+ if (copy_from_user(&alarm, uarg, sizeof(alarm)))
+ return -EFAULT;
+
+ err = rtc_set_alarm(class_dev, &alarm);
+ break;
+
+ case RTC_WKALM_RD:
+ err = rtc_read_alarm(class_dev, &alarm);
+ if (err < 0)
+ return err;
+
+ if (copy_to_user(uarg, &alarm, sizeof(alarm)))
+ return -EFAULT;
+ break;
+
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ return err;
+}
+
+static int rtc_dev_release(struct inode *inode, struct file *file)
+{
+ struct rtc_device *rtc = to_rtc_device(file->private_data);
+
+ if (rtc->ops->release)
+ rtc->ops->release(rtc->class_dev.dev);
+
+ mutex_unlock(&rtc->char_lock);
+ return 0;
+}
+
+static int rtc_dev_fasync(int fd, struct file *file, int on)
+{
+ struct rtc_device *rtc = to_rtc_device(file->private_data);
+ return fasync_helper(fd, file, on, &rtc->async_queue);
+}
+
+static struct file_operations rtc_dev_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = rtc_dev_read,
+ .poll = rtc_dev_poll,
+ .ioctl = rtc_dev_ioctl,
+ .open = rtc_dev_open,
+ .release = rtc_dev_release,
+ .fasync = rtc_dev_fasync,
+};
+
+/* insertion/removal hooks */
+
+static int rtc_dev_add_device(struct class_device *class_dev,
+ struct class_interface *class_intf)
+{
+ int err = 0;
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ if (rtc->id >= RTC_DEV_MAX) {
+ dev_err(class_dev->dev, "too many RTCs\n");
+ return -EINVAL;
+ }
+
+ mutex_init(&rtc->char_lock);
+ spin_lock_init(&rtc->irq_lock);
+ init_waitqueue_head(&rtc->irq_queue);
+
+ cdev_init(&rtc->char_dev, &rtc_dev_fops);
+ rtc->char_dev.owner = rtc->owner;
+
+ if (cdev_add(&rtc->char_dev, MKDEV(MAJOR(rtc_devt), rtc->id), 1)) {
+ cdev_del(&rtc->char_dev);
+ dev_err(class_dev->dev,
+ "failed to add char device %d:%d\n",
+ MAJOR(rtc_devt), rtc->id);
+ return -ENODEV;
+ }
+
+ rtc->rtc_dev = class_device_create(rtc_dev_class, NULL,
+ MKDEV(MAJOR(rtc_devt), rtc->id),
+ class_dev->dev, "rtc%d", rtc->id);
+ if (IS_ERR(rtc->rtc_dev)) {
+ dev_err(class_dev->dev, "cannot create rtc_dev device\n");
+ err = PTR_ERR(rtc->rtc_dev);
+ goto err_cdev_del;
+ }
+
+ dev_info(class_dev->dev, "rtc intf: dev (%d:%d)\n",
+ MAJOR(rtc->rtc_dev->devt),
+ MINOR(rtc->rtc_dev->devt));
+
+ return 0;
+
+err_cdev_del:
+
+ cdev_del(&rtc->char_dev);
+ return err;
+}
+
+static void rtc_dev_remove_device(struct class_device *class_dev,
+ struct class_interface *class_intf)
+{
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ if (rtc->rtc_dev) {
+ dev_dbg(class_dev->dev, "removing char %d:%d\n",
+ MAJOR(rtc->rtc_dev->devt),
+ MINOR(rtc->rtc_dev->devt));
+
+ class_device_unregister(rtc->rtc_dev);
+ cdev_del(&rtc->char_dev);
+ }
+}
+
+/* interface registration */
+
+static struct class_interface rtc_dev_interface = {
+ .add = &rtc_dev_add_device,
+ .remove = &rtc_dev_remove_device,
+};
+
+static int __init rtc_dev_init(void)
+{
+ int err;
+
+ rtc_dev_class = class_create(THIS_MODULE, "rtc-dev");
+ if (IS_ERR(rtc_dev_class))
+ return PTR_ERR(rtc_dev_class);
+
+ err = alloc_chrdev_region(&rtc_devt, 0, RTC_DEV_MAX, "rtc");
+ if (err < 0) {
+ printk(KERN_ERR "%s: failed to allocate char dev region\n",
+ __FILE__);
+ goto err_destroy_class;
+ }
+
+ err = rtc_interface_register(&rtc_dev_interface);
+ if (err < 0) {
+ printk(KERN_ERR "%s: failed to register the interface\n",
+ __FILE__);
+ goto err_unregister_chrdev;
+ }
+
+ return 0;
+
+err_unregister_chrdev:
+ unregister_chrdev_region(rtc_devt, RTC_DEV_MAX);
+
+err_destroy_class:
+ class_destroy(rtc_dev_class);
+
+ return err;
+}
+
+static void __exit rtc_dev_exit(void)
+{
+ class_interface_unregister(&rtc_dev_interface);
+ class_destroy(rtc_dev_class);
+ unregister_chrdev_region(rtc_devt, RTC_DEV_MAX);
+}
+
+module_init(rtc_dev_init);
+module_exit(rtc_dev_exit);
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("RTC class dev interface");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
new file mode 100644
index 00000000000..358695a416f
--- /dev/null
+++ b/drivers/rtc/rtc-ds1672.c
@@ -0,0 +1,233 @@
+/*
+ * An rtc/i2c driver for the Dallas DS1672
+ * Copyright 2005 Alessandro Zummo
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/rtc.h>
+
+#define DRV_VERSION "0.2"
+
+/* Addresses to scan: none. This chip cannot be detected. */
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD;
+
+/* Registers */
+
+#define DS1672_REG_CNT_BASE 0
+#define DS1672_REG_CONTROL 4
+#define DS1672_REG_TRICKLE 5
+
+
+/* Prototypes */
+static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind);
+
+/*
+ * In the routines that deal directly with the ds1672 hardware, we use
+ * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch
+ * Epoch is initialized as 2000. Time is set to UTC.
+ */
+static int ds1672_get_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ unsigned long time;
+ unsigned char addr = DS1672_REG_CNT_BASE;
+ unsigned char buf[4];
+
+ struct i2c_msg msgs[] = {
+ { client->addr, 0, 1, &addr }, /* setup read ptr */
+ { client->addr, I2C_M_RD, 4, buf }, /* read date */
+ };
+
+ /* read date registers */
+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ dev_dbg(&client->dev,
+ "%s: raw read data - counters=%02x,%02x,%02x,%02x\n"
+ __FUNCTION__,
+ buf[0], buf[1], buf[2], buf[3]);
+
+ time = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
+
+ rtc_time_to_tm(time, tm);
+
+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
+ "mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__,
+ tm->tm_sec, tm->tm_min, tm->tm_hour,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ return 0;
+}
+
+static int ds1672_set_mmss(struct i2c_client *client, unsigned long secs)
+{
+ int xfer;
+ unsigned char buf[5];
+
+ buf[0] = DS1672_REG_CNT_BASE;
+ buf[1] = secs & 0x000000FF;
+ buf[2] = (secs & 0x0000FF00) >> 8;
+ buf[3] = (secs & 0x00FF0000) >> 16;
+ buf[4] = (secs & 0xFF000000) >> 24;
+
+ xfer = i2c_master_send(client, buf, 5);
+ if (xfer != 5) {
+ dev_err(&client->dev, "%s: send: %d\n", __FUNCTION__, xfer);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int ds1672_set_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ unsigned long secs;
+
+ dev_dbg(&client->dev,
+ "%s: secs=%d, mins=%d, hours=%d, ",
+ "mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__,
+ tm->tm_sec, tm->tm_min, tm->tm_hour,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ rtc_tm_to_time(tm, &secs);
+
+ return ds1672_set_mmss(client, secs);
+}
+
+static int ds1672_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ return ds1672_get_datetime(to_i2c_client(dev), tm);
+}
+
+static int ds1672_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ return ds1672_set_datetime(to_i2c_client(dev), tm);
+}
+
+static int ds1672_rtc_set_mmss(struct device *dev, unsigned long secs)
+{
+ return ds1672_set_mmss(to_i2c_client(dev), secs);
+}
+
+static struct rtc_class_ops ds1672_rtc_ops = {
+ .read_time = ds1672_rtc_read_time,
+ .set_time = ds1672_rtc_set_time,
+ .set_mmss = ds1672_rtc_set_mmss,
+};
+
+static int ds1672_attach(struct i2c_adapter *adapter)
+{
+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+ return i2c_probe(adapter, &addr_data, ds1672_probe);
+}
+
+static int ds1672_detach(struct i2c_client *client)
+{
+ int err;
+ struct rtc_device *rtc = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "%s\n", __FUNCTION__);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ if ((err = i2c_detach_client(client)))
+ return err;
+
+ kfree(client);
+
+ return 0;
+}
+
+static struct i2c_driver ds1672_driver = {
+ .driver = {
+ .name = "ds1672",
+ },
+ .id = I2C_DRIVERID_DS1672,
+ .attach_adapter = &ds1672_attach,
+ .detach_client = &ds1672_detach,
+};
+
+static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind)
+{
+ int err = 0;
+ struct i2c_client *client;
+ struct rtc_device *rtc;
+
+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
+ err = -ENODEV;
+ goto exit;
+ }
+
+ if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ /* I2C client */
+ client->addr = address;
+ client->driver = &ds1672_driver;
+ client->adapter = adapter;
+
+ strlcpy(client->name, ds1672_driver.driver.name, I2C_NAME_SIZE);
+
+ /* Inform the i2c layer */
+ if ((err = i2c_attach_client(client)))
+ goto exit_kfree;
+
+ dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
+
+ rtc = rtc_device_register(ds1672_driver.driver.name, &client->dev,
+ &ds1672_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ err = PTR_ERR(rtc);
+ dev_err(&client->dev,
+ "unable to register the class device\n");
+ goto exit_detach;
+ }
+
+ i2c_set_clientdata(client, rtc);
+
+ return 0;
+
+exit_detach:
+ i2c_detach_client(client);
+
+exit_kfree:
+ kfree(client);
+
+exit:
+ return err;
+}
+
+static int __init ds1672_init(void)
+{
+ return i2c_add_driver(&ds1672_driver);
+}
+
+static void __exit ds1672_exit(void)
+{
+ i2c_del_driver(&ds1672_driver);
+}
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("Dallas/Maxim DS1672 timekeeper driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ds1672_init);
+module_exit(ds1672_exit);
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
new file mode 100644
index 00000000000..0dd80ea686a
--- /dev/null
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -0,0 +1,162 @@
+/*
+ * A driver for the RTC embedded in the Cirrus Logic EP93XX processors
+ * Copyright (c) 2006 Tower Technologies
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+#include <asm/hardware.h>
+
+#define EP93XX_RTC_REG(x) (EP93XX_RTC_BASE + (x))
+#define EP93XX_RTC_DATA EP93XX_RTC_REG(0x0000)
+#define EP93XX_RTC_LOAD EP93XX_RTC_REG(0x000C)
+#define EP93XX_RTC_SWCOMP EP93XX_RTC_REG(0x0108)
+
+#define DRV_VERSION "0.2"
+
+static int ep93xx_get_swcomp(struct device *dev, unsigned short *preload,
+ unsigned short *delete)
+{
+ unsigned short comp = __raw_readl(EP93XX_RTC_SWCOMP);
+
+ if (preload)
+ *preload = comp & 0xffff;
+
+ if (delete)
+ *delete = (comp >> 16) & 0x1f;
+
+ return 0;
+}
+
+static int ep93xx_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ unsigned long time = __raw_readl(EP93XX_RTC_DATA);
+
+ rtc_time_to_tm(time, tm);
+ return 0;
+}
+
+static int ep93xx_rtc_set_mmss(struct device *dev, unsigned long secs)
+{
+ __raw_writel(secs + 1, EP93XX_RTC_LOAD);
+ return 0;
+}
+
+static int ep93xx_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ int err;
+ unsigned long secs;
+
+ err = rtc_tm_to_time(tm, &secs);
+ if (err != 0)
+ return err;
+
+ return ep93xx_rtc_set_mmss(dev, secs);
+}
+
+static int ep93xx_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ unsigned short preload, delete;
+
+ ep93xx_get_swcomp(dev, &preload, &delete);
+
+ seq_printf(seq, "24hr\t\t: yes\n");
+ seq_printf(seq, "preload\t\t: %d\n", preload);
+ seq_printf(seq, "delete\t\t: %d\n", delete);
+
+ return 0;
+}
+
+static struct rtc_class_ops ep93xx_rtc_ops = {
+ .read_time = ep93xx_rtc_read_time,
+ .set_time = ep93xx_rtc_set_time,
+ .set_mmss = ep93xx_rtc_set_mmss,
+ .proc = ep93xx_rtc_proc,
+};
+
+static ssize_t ep93xx_sysfs_show_comp_preload(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned short preload;
+
+ ep93xx_get_swcomp(dev, &preload, NULL);
+
+ return sprintf(buf, "%d\n", preload);
+}
+static DEVICE_ATTR(comp_preload, S_IRUGO, ep93xx_sysfs_show_comp_preload, NULL);
+
+static ssize_t ep93xx_sysfs_show_comp_delete(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned short delete;
+
+ ep93xx_get_swcomp(dev, NULL, &delete);
+
+ return sprintf(buf, "%d\n", delete);
+}
+static DEVICE_ATTR(comp_delete, S_IRUGO, ep93xx_sysfs_show_comp_delete, NULL);
+
+
+static int __devinit ep93xx_rtc_probe(struct platform_device *dev)
+{
+ struct rtc_device *rtc = rtc_device_register("ep93xx",
+ &dev->dev, &ep93xx_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ dev_err(&dev->dev, "unable to register\n");
+ return PTR_ERR(rtc);
+ }
+
+ platform_set_drvdata(dev, rtc);
+
+ device_create_file(&dev->dev, &dev_attr_comp_preload);
+ device_create_file(&dev->dev, &dev_attr_comp_delete);
+
+ return 0;
+}
+
+static int __devexit ep93xx_rtc_remove(struct platform_device *dev)
+{
+ struct rtc_device *rtc = platform_get_drvdata(dev);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ platform_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver ep93xx_rtc_platform_driver = {
+ .driver = {
+ .name = "ep93xx-rtc",
+ .owner = THIS_MODULE,
+ },
+ .probe = ep93xx_rtc_probe,
+ .remove = __devexit_p(ep93xx_rtc_remove),
+};
+
+static int __init ep93xx_rtc_init(void)
+{
+ return platform_driver_register(&ep93xx_rtc_platform_driver);
+}
+
+static void __exit ep93xx_rtc_exit(void)
+{
+ platform_driver_unregister(&ep93xx_rtc_platform_driver);
+}
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("EP93XX RTC driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ep93xx_rtc_init);
+module_exit(ep93xx_rtc_exit);
diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c
new file mode 100644
index 00000000000..cfedc1d28ee
--- /dev/null
+++ b/drivers/rtc/rtc-lib.c
@@ -0,0 +1,101 @@
+/*
+ * rtc and date/time utility functions
+ *
+ * Copyright (C) 2005-06 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on arch/arm/common/rtctime.c and other bits
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+
+static const unsigned char rtc_days_in_month[] = {
+ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+};
+
+#define LEAPS_THRU_END_OF(y) ((y)/4 - (y)/100 + (y)/400)
+#define LEAP_YEAR(year) ((!(year % 4) && (year % 100)) || !(year % 400))
+
+int rtc_month_days(unsigned int month, unsigned int year)
+{
+ return rtc_days_in_month[month] + (LEAP_YEAR(year) && month == 1);
+}
+EXPORT_SYMBOL(rtc_month_days);
+
+/*
+ * Convert seconds since 01-01-1970 00:00:00 to Gregorian date.
+ */
+void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
+{
+ register int days, month, year;
+
+ days = time / 86400;
+ time -= days * 86400;
+
+ /* day of the week, 1970-01-01 was a Thursday */
+ tm->tm_wday = (days + 4) % 7;
+
+ year = 1970 + days / 365;
+ days -= (year - 1970) * 365
+ + LEAPS_THRU_END_OF(year - 1)
+ - LEAPS_THRU_END_OF(1970 - 1);
+ if (days < 0) {
+ year -= 1;
+ days += 365 + LEAP_YEAR(year);
+ }
+ tm->tm_year = year - 1900;
+ tm->tm_yday = days + 1;
+
+ for (month = 0; month < 11; month++) {
+ int newdays;
+
+ newdays = days - rtc_month_days(month, year);
+ if (newdays < 0)
+ break;
+ days = newdays;
+ }
+ tm->tm_mon = month;
+ tm->tm_mday = days + 1;
+
+ tm->tm_hour = time / 3600;
+ time -= tm->tm_hour * 3600;
+ tm->tm_min = time / 60;
+ tm->tm_sec = time - tm->tm_min * 60;
+}
+EXPORT_SYMBOL(rtc_time_to_tm);
+
+/*
+ * Does the rtc_time represent a valid date/time?
+ */
+int rtc_valid_tm(struct rtc_time *tm)
+{
+ if (tm->tm_year < 70
+ || tm->tm_mon >= 12
+ || tm->tm_mday < 1
+ || tm->tm_mday > rtc_month_days(tm->tm_mon, tm->tm_year + 1900)
+ || tm->tm_hour >= 24
+ || tm->tm_min >= 60
+ || tm->tm_sec >= 60)
+ return -EINVAL;
+
+ return 0;
+}
+EXPORT_SYMBOL(rtc_valid_tm);
+
+/*
+ * Convert Gregorian date to seconds since 01-01-1970 00:00:00.
+ */
+int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
+{
+ *time = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ return 0;
+}
+EXPORT_SYMBOL(rtc_tm_to_time);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c
new file mode 100644
index 00000000000..db445c872b1
--- /dev/null
+++ b/drivers/rtc/rtc-m48t86.c
@@ -0,0 +1,209 @@
+/*
+ * ST M48T86 / Dallas DS12887 RTC driver
+ * Copyright (c) 2006 Tower Technologies
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This drivers only supports the clock running in BCD and 24H mode.
+ * If it will be ever adapted to binary and 12H mode, care must be taken
+ * to not introduce bugs.
+ */
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+#include <linux/m48t86.h>
+#include <linux/bcd.h>
+
+#define M48T86_REG_SEC 0x00
+#define M48T86_REG_SECALRM 0x01
+#define M48T86_REG_MIN 0x02
+#define M48T86_REG_MINALRM 0x03
+#define M48T86_REG_HOUR 0x04
+#define M48T86_REG_HOURALRM 0x05
+#define M48T86_REG_DOW 0x06 /* 1 = sunday */
+#define M48T86_REG_DOM 0x07
+#define M48T86_REG_MONTH 0x08 /* 1 - 12 */
+#define M48T86_REG_YEAR 0x09 /* 0 - 99 */
+#define M48T86_REG_A 0x0A
+#define M48T86_REG_B 0x0B
+#define M48T86_REG_C 0x0C
+#define M48T86_REG_D 0x0D
+
+#define M48T86_REG_B_H24 (1 << 1)
+#define M48T86_REG_B_DM (1 << 2)
+#define M48T86_REG_B_SET (1 << 7)
+#define M48T86_REG_D_VRT (1 << 7)
+
+#define DRV_VERSION "0.1"
+
+
+static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ unsigned char reg;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct m48t86_ops *ops = pdev->dev.platform_data;
+
+ reg = ops->readb(M48T86_REG_B);
+
+ if (reg & M48T86_REG_B_DM) {
+ /* data (binary) mode */
+ tm->tm_sec = ops->readb(M48T86_REG_SEC);
+ tm->tm_min = ops->readb(M48T86_REG_MIN);
+ tm->tm_hour = ops->readb(M48T86_REG_HOUR) & 0x3F;
+ tm->tm_mday = ops->readb(M48T86_REG_DOM);
+ /* tm_mon is 0-11 */
+ tm->tm_mon = ops->readb(M48T86_REG_MONTH) - 1;
+ tm->tm_year = ops->readb(M48T86_REG_YEAR) + 100;
+ tm->tm_wday = ops->readb(M48T86_REG_DOW);
+ } else {
+ /* bcd mode */
+ tm->tm_sec = BCD2BIN(ops->readb(M48T86_REG_SEC));
+ tm->tm_min = BCD2BIN(ops->readb(M48T86_REG_MIN));
+ tm->tm_hour = BCD2BIN(ops->readb(M48T86_REG_HOUR) & 0x3F);
+ tm->tm_mday = BCD2BIN(ops->readb(M48T86_REG_DOM));
+ /* tm_mon is 0-11 */
+ tm->tm_mon = BCD2BIN(ops->readb(M48T86_REG_MONTH)) - 1;
+ tm->tm_year = BCD2BIN(ops->readb(M48T86_REG_YEAR)) + 100;
+ tm->tm_wday = BCD2BIN(ops->readb(M48T86_REG_DOW));
+ }
+
+ /* correct the hour if the clock is in 12h mode */
+ if (!(reg & M48T86_REG_B_H24))
+ if (ops->readb(M48T86_REG_HOUR) & 0x80)
+ tm->tm_hour += 12;
+
+ return 0;
+}
+
+static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ unsigned char reg;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct m48t86_ops *ops = pdev->dev.platform_data;
+
+ reg = ops->readb(M48T86_REG_B);
+
+ /* update flag and 24h mode */
+ reg |= M48T86_REG_B_SET | M48T86_REG_B_H24;
+ ops->writeb(reg, M48T86_REG_B);
+
+ if (reg & M48T86_REG_B_DM) {
+ /* data (binary) mode */
+ ops->writeb(tm->tm_sec, M48T86_REG_SEC);
+ ops->writeb(tm->tm_min, M48T86_REG_MIN);
+ ops->writeb(tm->tm_hour, M48T86_REG_HOUR);
+ ops->writeb(tm->tm_mday, M48T86_REG_DOM);
+ ops->writeb(tm->tm_mon + 1, M48T86_REG_MONTH);
+ ops->writeb(tm->tm_year % 100, M48T86_REG_YEAR);
+ ops->writeb(tm->tm_wday, M48T86_REG_DOW);
+ } else {
+ /* bcd mode */
+ ops->writeb(BIN2BCD(tm->tm_sec), M48T86_REG_SEC);
+ ops->writeb(BIN2BCD(tm->tm_min), M48T86_REG_MIN);
+ ops->writeb(BIN2BCD(tm->tm_hour), M48T86_REG_HOUR);
+ ops->writeb(BIN2BCD(tm->tm_mday), M48T86_REG_DOM);
+ ops->writeb(BIN2BCD(tm->tm_mon + 1), M48T86_REG_MONTH);
+ ops->writeb(BIN2BCD(tm->tm_year % 100), M48T86_REG_YEAR);
+ ops->writeb(BIN2BCD(tm->tm_wday), M48T86_REG_DOW);
+ }
+
+ /* update ended */
+ reg &= ~M48T86_REG_B_SET;
+ ops->writeb(reg, M48T86_REG_B);
+
+ return 0;
+}
+
+static int m48t86_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ unsigned char reg;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct m48t86_ops *ops = pdev->dev.platform_data;
+
+ reg = ops->readb(M48T86_REG_B);
+
+ seq_printf(seq, "24hr\t\t: %s\n",
+ (reg & M48T86_REG_B_H24) ? "yes" : "no");
+
+ seq_printf(seq, "mode\t\t: %s\n",
+ (reg & M48T86_REG_B_DM) ? "binary" : "bcd");
+
+ reg = ops->readb(M48T86_REG_D);
+
+ seq_printf(seq, "battery\t\t: %s\n",
+ (reg & M48T86_REG_D_VRT) ? "ok" : "exhausted");
+
+ return 0;
+}
+
+static struct rtc_class_ops m48t86_rtc_ops = {
+ .read_time = m48t86_rtc_read_time,
+ .set_time = m48t86_rtc_set_time,
+ .proc = m48t86_rtc_proc,
+};
+
+static int __devinit m48t86_rtc_probe(struct platform_device *dev)
+{
+ unsigned char reg;
+ struct m48t86_ops *ops = dev->dev.platform_data;
+ struct rtc_device *rtc = rtc_device_register("m48t86",
+ &dev->dev, &m48t86_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ dev_err(&dev->dev, "unable to register\n");
+ return PTR_ERR(rtc);
+ }
+
+ platform_set_drvdata(dev, rtc);
+
+ /* read battery status */
+ reg = ops->readb(M48T86_REG_D);
+ dev_info(&dev->dev, "battery %s\n",
+ (reg & M48T86_REG_D_VRT) ? "ok" : "exhausted");
+
+ return 0;
+}
+
+static int __devexit m48t86_rtc_remove(struct platform_device *dev)
+{
+ struct rtc_device *rtc = platform_get_drvdata(dev);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ platform_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver m48t86_rtc_platform_driver = {
+ .driver = {
+ .name = "rtc-m48t86",
+ .owner = THIS_MODULE,
+ },
+ .probe = m48t86_rtc_probe,
+ .remove = __devexit_p(m48t86_rtc_remove),
+};
+
+static int __init m48t86_rtc_init(void)
+{
+ return platform_driver_register(&m48t86_rtc_platform_driver);
+}
+
+static void __exit m48t86_rtc_exit(void)
+{
+ platform_driver_unregister(&m48t86_rtc_platform_driver);
+}
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("M48T86 RTC driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(m48t86_rtc_init);
+module_exit(m48t86_rtc_exit);
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
new file mode 100644
index 00000000000..d857d45bdbe
--- /dev/null
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -0,0 +1,353 @@
+/*
+ * An I2C driver for the Philips PCF8563 RTC
+ * Copyright 2005-06 Tower Technologies
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ * based on the other drivers in this same directory.
+ *
+ * http://www.semiconductors.philips.com/acrobat/datasheets/PCF8563-04.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/bcd.h>
+#include <linux/rtc.h>
+
+#define DRV_VERSION "0.4.2"
+
+/* Addresses to scan: none
+ * This chip cannot be reliably autodetected. An empty eeprom
+ * located at 0x51 will pass the validation routine due to
+ * the way the registers are implemented.
+ */
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+
+/* Module parameters */
+I2C_CLIENT_INSMOD;
+
+#define PCF8563_REG_ST1 0x00 /* status */
+#define PCF8563_REG_ST2 0x01
+
+#define PCF8563_REG_SC 0x02 /* datetime */
+#define PCF8563_REG_MN 0x03
+#define PCF8563_REG_HR 0x04
+#define PCF8563_REG_DM 0x05
+#define PCF8563_REG_DW 0x06
+#define PCF8563_REG_MO 0x07
+#define PCF8563_REG_YR 0x08
+
+#define PCF8563_REG_AMN 0x09 /* alarm */
+#define PCF8563_REG_AHR 0x0A
+#define PCF8563_REG_ADM 0x0B
+#define PCF8563_REG_ADW 0x0C
+
+#define PCF8563_REG_CLKO 0x0D /* clock out */
+#define PCF8563_REG_TMRC 0x0E /* timer control */
+#define PCF8563_REG_TMR 0x0F /* timer */
+
+#define PCF8563_SC_LV 0x80 /* low voltage */
+#define PCF8563_MO_C 0x80 /* century */
+
+static int pcf8563_probe(struct i2c_adapter *adapter, int address, int kind);
+static int pcf8563_detach(struct i2c_client *client);
+
+/*
+ * In the routines that deal directly with the pcf8563 hardware, we use
+ * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch.
+ */
+static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ unsigned char buf[13] = { PCF8563_REG_ST1 };
+
+ struct i2c_msg msgs[] = {
+ { client->addr, 0, 1, buf }, /* setup read ptr */
+ { client->addr, I2C_M_RD, 13, buf }, /* read status + date */
+ };
+
+ /* read registers */
+ if ((i2c_transfer(client->adapter, msgs, 2)) != 2) {
+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ if (buf[PCF8563_REG_SC] & PCF8563_SC_LV)
+ dev_info(&client->dev,
+ "low voltage detected, date/time is not reliable.\n");
+
+ dev_dbg(&client->dev,
+ "%s: raw data is st1=%02x, st2=%02x, sec=%02x, min=%02x, hr=%02x, "
+ "mday=%02x, wday=%02x, mon=%02x, year=%02x\n",
+ __FUNCTION__,
+ buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6], buf[7],
+ buf[8]);
+
+
+ tm->tm_sec = BCD2BIN(buf[PCF8563_REG_SC] & 0x7F);
+ tm->tm_min = BCD2BIN(buf[PCF8563_REG_MN] & 0x7F);
+ tm->tm_hour = BCD2BIN(buf[PCF8563_REG_HR] & 0x3F); /* rtc hr 0-23 */
+ tm->tm_mday = BCD2BIN(buf[PCF8563_REG_DM] & 0x3F);
+ tm->tm_wday = buf[PCF8563_REG_DW] & 0x07;
+ tm->tm_mon = BCD2BIN(buf[PCF8563_REG_MO] & 0x1F) - 1; /* rtc mn 1-12 */
+ tm->tm_year = BCD2BIN(buf[PCF8563_REG_YR])
+ + (buf[PCF8563_REG_MO] & PCF8563_MO_C ? 100 : 0);
+
+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
+ "mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__,
+ tm->tm_sec, tm->tm_min, tm->tm_hour,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ /* the clock can give out invalid datetime, but we cannot return
+ * -EINVAL otherwise hwclock will refuse to set the time on bootup.
+ */
+ if (rtc_valid_tm(tm) < 0)
+ dev_err(&client->dev, "retrieved date/time is not valid.\n");
+
+ return 0;
+}
+
+static int pcf8563_set_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ int i, err;
+ unsigned char buf[9];
+
+ dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
+ "mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__,
+ tm->tm_sec, tm->tm_min, tm->tm_hour,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ /* hours, minutes and seconds */
+ buf[PCF8563_REG_SC] = BIN2BCD(tm->tm_sec);
+ buf[PCF8563_REG_MN] = BIN2BCD(tm->tm_min);
+ buf[PCF8563_REG_HR] = BIN2BCD(tm->tm_hour);
+
+ buf[PCF8563_REG_DM] = BIN2BCD(tm->tm_mday);
+
+ /* month, 1 - 12 */
+ buf[PCF8563_REG_MO] = BIN2BCD(tm->tm_mon + 1);
+
+ /* year and century */
+ buf[PCF8563_REG_YR] = BIN2BCD(tm->tm_year % 100);
+ if (tm->tm_year / 100)
+ buf[PCF8563_REG_MO] |= PCF8563_MO_C;
+
+ buf[PCF8563_REG_DW] = tm->tm_wday & 0x07;
+
+ /* write register's data */
+ for (i = 0; i < 7; i++) {
+ unsigned char data[2] = { PCF8563_REG_SC + i,
+ buf[PCF8563_REG_SC + i] };
+
+ err = i2c_master_send(client, data, sizeof(data));
+ if (err != sizeof(data)) {
+ dev_err(&client->dev,
+ "%s: err=%d addr=%02x, data=%02x\n",
+ __FUNCTION__, err, data[0], data[1]);
+ return -EIO;
+ }
+ };
+
+ return 0;
+}
+
+struct pcf8563_limit
+{
+ unsigned char reg;
+ unsigned char mask;
+ unsigned char min;
+ unsigned char max;
+};
+
+static int pcf8563_validate_client(struct i2c_client *client)
+{
+ int i;
+
+ static const struct pcf8563_limit pattern[] = {
+ /* register, mask, min, max */
+ { PCF8563_REG_SC, 0x7F, 0, 59 },
+ { PCF8563_REG_MN, 0x7F, 0, 59 },
+ { PCF8563_REG_HR, 0x3F, 0, 23 },
+ { PCF8563_REG_DM, 0x3F, 0, 31 },
+ { PCF8563_REG_MO, 0x1F, 0, 12 },
+ };
+
+ /* check limits (only registers with bcd values) */
+ for (i = 0; i < ARRAY_SIZE(pattern); i++) {
+ int xfer;
+ unsigned char value;
+ unsigned char buf = pattern[i].reg;
+
+ struct i2c_msg msgs[] = {
+ { client->addr, 0, 1, &buf },
+ { client->addr, I2C_M_RD, 1, &buf },
+ };
+
+ xfer = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+
+ if (xfer != ARRAY_SIZE(msgs)) {
+ dev_err(&client->adapter->dev,
+ "%s: could not read register 0x%02X\n",
+ __FUNCTION__, pattern[i].reg);
+
+ return -EIO;
+ }
+
+ value = BCD2BIN(buf & pattern[i].mask);
+
+ if (value > pattern[i].max ||
+ value < pattern[i].min) {
+ dev_dbg(&client->adapter->dev,
+ "%s: pattern=%d, reg=%x, mask=0x%02x, min=%d, "
+ "max=%d, value=%d, raw=0x%02X\n",
+ __FUNCTION__, i, pattern[i].reg, pattern[i].mask,
+ pattern[i].min, pattern[i].max,
+ value, buf);
+
+ return -ENODEV;
+ }
+ }
+
+ return 0;
+}
+
+static int pcf8563_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ return pcf8563_get_datetime(to_i2c_client(dev), tm);
+}
+
+static int pcf8563_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ return pcf8563_set_datetime(to_i2c_client(dev), tm);
+}
+
+static int pcf8563_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ seq_printf(seq, "24hr\t\t: yes\n");
+ return 0;
+}
+
+static struct rtc_class_ops pcf8563_rtc_ops = {
+ .proc = pcf8563_rtc_proc,
+ .read_time = pcf8563_rtc_read_time,
+ .set_time = pcf8563_rtc_set_time,
+};
+
+static int pcf8563_attach(struct i2c_adapter *adapter)
+{
+ return i2c_probe(adapter, &addr_data, pcf8563_probe);
+}
+
+static struct i2c_driver pcf8563_driver = {
+ .driver = {
+ .name = "pcf8563",
+ },
+ .id = I2C_DRIVERID_PCF8563,
+ .attach_adapter = &pcf8563_attach,
+ .detach_client = &pcf8563_detach,
+};
+
+static int pcf8563_probe(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *client;
+ struct rtc_device *rtc;
+
+ int err = 0;
+
+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
+ err = -ENODEV;
+ goto exit;
+ }
+
+ if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ client->addr = address;
+ client->driver = &pcf8563_driver;
+ client->adapter = adapter;
+
+ strlcpy(client->name, pcf8563_driver.driver.name, I2C_NAME_SIZE);
+
+ /* Verify the chip is really an PCF8563 */
+ if (kind < 0) {
+ if (pcf8563_validate_client(client) < 0) {
+ err = -ENODEV;
+ goto exit_kfree;
+ }
+ }
+
+ /* Inform the i2c layer */
+ if ((err = i2c_attach_client(client)))
+ goto exit_kfree;
+
+ dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
+
+ rtc = rtc_device_register(pcf8563_driver.driver.name, &client->dev,
+ &pcf8563_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ err = PTR_ERR(rtc);
+ dev_err(&client->dev,
+ "unable to register the class device\n");
+ goto exit_detach;
+ }
+
+ i2c_set_clientdata(client, rtc);
+
+ return 0;
+
+exit_detach:
+ i2c_detach_client(client);
+
+exit_kfree:
+ kfree(client);
+
+exit:
+ return err;
+}
+
+static int pcf8563_detach(struct i2c_client *client)
+{
+ int err;
+ struct rtc_device *rtc = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "%s\n", __FUNCTION__);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ if ((err = i2c_detach_client(client)))
+ return err;
+
+ kfree(client);
+
+ return 0;
+}
+
+static int __init pcf8563_init(void)
+{
+ return i2c_add_driver(&pcf8563_driver);
+}
+
+static void __exit pcf8563_exit(void)
+{
+ i2c_del_driver(&pcf8563_driver);
+}
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("Philips PCF8563/Epson RTC8564 RTC driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(pcf8563_init);
+module_exit(pcf8563_exit);
diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c
new file mode 100644
index 00000000000..90b8a97a091
--- /dev/null
+++ b/drivers/rtc/rtc-proc.c
@@ -0,0 +1,162 @@
+/*
+ * RTC subsystem, proc interface
+ *
+ * Copyright (C) 2005-06 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on arch/arm/common/rtctime.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+static struct class_device *rtc_dev = NULL;
+static DEFINE_MUTEX(rtc_lock);
+
+static int rtc_proc_show(struct seq_file *seq, void *offset)
+{
+ int err;
+ struct class_device *class_dev = seq->private;
+ struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
+ struct rtc_wkalrm alrm;
+ struct rtc_time tm;
+
+ err = rtc_read_time(class_dev, &tm);
+ if (err == 0) {
+ seq_printf(seq,
+ "rtc_time\t: %02d:%02d:%02d\n"
+ "rtc_date\t: %04d-%02d-%02d\n",
+ tm.tm_hour, tm.tm_min, tm.tm_sec,
+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
+ }
+
+ err = rtc_read_alarm(class_dev, &alrm);
+ if (err == 0) {
+ seq_printf(seq, "alrm_time\t: ");
+ if ((unsigned int)alrm.time.tm_hour <= 24)
+ seq_printf(seq, "%02d:", alrm.time.tm_hour);
+ else
+ seq_printf(seq, "**:");
+ if ((unsigned int)alrm.time.tm_min <= 59)
+ seq_printf(seq, "%02d:", alrm.time.tm_min);
+ else
+ seq_printf(seq, "**:");
+ if ((unsigned int)alrm.time.tm_sec <= 59)
+ seq_printf(seq, "%02d\n", alrm.time.tm_sec);
+ else
+ seq_printf(seq, "**\n");
+
+ seq_printf(seq, "alrm_date\t: ");
+ if ((unsigned int)alrm.time.tm_year <= 200)
+ seq_printf(seq, "%04d-", alrm.time.tm_year + 1900);
+ else
+ seq_printf(seq, "****-");
+ if ((unsigned int)alrm.time.tm_mon <= 11)
+ seq_printf(seq, "%02d-", alrm.time.tm_mon + 1);
+ else
+ seq_printf(seq, "**-");
+ if ((unsigned int)alrm.time.tm_mday <= 31)
+ seq_printf(seq, "%02d\n", alrm.time.tm_mday);
+ else
+ seq_printf(seq, "**\n");
+ seq_printf(seq, "alrm_wakeup\t: %s\n",
+ alrm.enabled ? "yes" : "no");
+ seq_printf(seq, "alrm_pending\t: %s\n",
+ alrm.pending ? "yes" : "no");
+ }
+
+ if (ops->proc)
+ ops->proc(class_dev->dev, seq);
+
+ return 0;
+}
+
+static int rtc_proc_open(struct inode *inode, struct file *file)
+{
+ struct class_device *class_dev = PDE(inode)->data;
+
+ if (!try_module_get(THIS_MODULE))
+ return -ENODEV;
+
+ return single_open(file, rtc_proc_show, class_dev);
+}
+
+static int rtc_proc_release(struct inode *inode, struct file *file)
+{
+ int res = single_release(inode, file);
+ module_put(THIS_MODULE);
+ return res;
+}
+
+static struct file_operations rtc_proc_fops = {
+ .open = rtc_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = rtc_proc_release,
+};
+
+static int rtc_proc_add_device(struct class_device *class_dev,
+ struct class_interface *class_intf)
+{
+ mutex_lock(&rtc_lock);
+ if (rtc_dev == NULL) {
+ struct proc_dir_entry *ent;
+
+ rtc_dev = class_dev;
+
+ ent = create_proc_entry("driver/rtc", 0, NULL);
+ if (ent) {
+ struct rtc_device *rtc = to_rtc_device(class_dev);
+
+ ent->proc_fops = &rtc_proc_fops;
+ ent->owner = rtc->owner;
+ ent->data = class_dev;
+
+ dev_info(class_dev->dev, "rtc intf: proc\n");
+ }
+ else
+ rtc_dev = NULL;
+ }
+ mutex_unlock(&rtc_lock);
+
+ return 0;
+}
+
+static void rtc_proc_remove_device(struct class_device *class_dev,
+ struct class_interface *class_intf)
+{
+ mutex_lock(&rtc_lock);
+ if (rtc_dev == class_dev) {
+ remove_proc_entry("driver/rtc", NULL);
+ rtc_dev = NULL;
+ }
+ mutex_unlock(&rtc_lock);
+}
+
+static struct class_interface rtc_proc_interface = {
+ .add = &rtc_proc_add_device,
+ .remove = &rtc_proc_remove_device,
+};
+
+static int __init rtc_proc_init(void)
+{
+ return rtc_interface_register(&rtc_proc_interface);
+}
+
+static void __exit rtc_proc_exit(void)
+{
+ class_interface_unregister(&rtc_proc_interface);
+}
+
+module_init(rtc_proc_init);
+module_exit(rtc_proc_exit);
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("RTC class proc interface");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c
new file mode 100644
index 00000000000..396c8681f66
--- /dev/null
+++ b/drivers/rtc/rtc-rs5c372.c
@@ -0,0 +1,294 @@
+/*
+ * An I2C driver for the Ricoh RS5C372 RTC
+ *
+ * Copyright (C) 2005 Pavel Mironchik <pmironchik@optifacio.net>
+ * Copyright (C) 2006 Tower Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+
+#define DRV_VERSION "0.2"
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { /* 0x32,*/ I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD;
+
+#define RS5C372_REG_SECS 0
+#define RS5C372_REG_MINS 1
+#define RS5C372_REG_HOURS 2
+#define RS5C372_REG_WDAY 3
+#define RS5C372_REG_DAY 4
+#define RS5C372_REG_MONTH 5
+#define RS5C372_REG_YEAR 6
+#define RS5C372_REG_TRIM 7
+
+#define RS5C372_TRIM_XSL 0x80
+#define RS5C372_TRIM_MASK 0x7F
+
+#define RS5C372_REG_BASE 0
+
+static int rs5c372_attach(struct i2c_adapter *adapter);
+static int rs5c372_detach(struct i2c_client *client);
+static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind);
+
+static struct i2c_driver rs5c372_driver = {
+ .driver = {
+ .name = "rs5c372",
+ },
+ .attach_adapter = &rs5c372_attach,
+ .detach_client = &rs5c372_detach,
+};
+
+static int rs5c372_get_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ unsigned char buf[7] = { RS5C372_REG_BASE };
+
+ /* this implements the 1st reading method, according
+ * to the datasheet. buf[0] is initialized with
+ * address ptr and transmission format register.
+ */
+ struct i2c_msg msgs[] = {
+ { client->addr, 0, 1, buf },
+ { client->addr, I2C_M_RD, 7, buf },
+ };
+
+ if ((i2c_transfer(client->adapter, msgs, 2)) != 2) {
+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ tm->tm_sec = BCD2BIN(buf[RS5C372_REG_SECS] & 0x7f);
+ tm->tm_min = BCD2BIN(buf[RS5C372_REG_MINS] & 0x7f);
+ tm->tm_hour = BCD2BIN(buf[RS5C372_REG_HOURS] & 0x3f);
+ tm->tm_wday = BCD2BIN(buf[RS5C372_REG_WDAY] & 0x07);
+ tm->tm_mday = BCD2BIN(buf[RS5C372_REG_DAY] & 0x3f);
+
+ /* tm->tm_mon is zero-based */
+ tm->tm_mon = BCD2BIN(buf[RS5C372_REG_MONTH] & 0x1f) - 1;
+
+ /* year is 1900 + tm->tm_year */
+ tm->tm_year = BCD2BIN(buf[RS5C372_REG_YEAR]) + 100;
+
+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
+ "mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__,
+ tm->tm_sec, tm->tm_min, tm->tm_hour,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ return 0;
+}
+
+static int rs5c372_set_datetime(struct i2c_client *client, struct rtc_time *tm)
+{
+ unsigned char buf[8] = { RS5C372_REG_BASE };
+
+ dev_dbg(&client->dev,
+ "%s: secs=%d, mins=%d, hours=%d ",
+ "mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__, tm->tm_sec, tm->tm_min, tm->tm_hour,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ buf[1] = BIN2BCD(tm->tm_sec);
+ buf[2] = BIN2BCD(tm->tm_min);
+ buf[3] = BIN2BCD(tm->tm_hour);
+ buf[4] = BIN2BCD(tm->tm_wday);
+ buf[5] = BIN2BCD(tm->tm_mday);
+ buf[6] = BIN2BCD(tm->tm_mon + 1);
+ buf[7] = BIN2BCD(tm->tm_year - 100);
+
+ if ((i2c_master_send(client, buf, 8)) != 8) {
+ dev_err(&client->dev, "%s: write error\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int rs5c372_get_trim(struct i2c_client *client, int *osc, int *trim)
+{
+ unsigned char buf = RS5C372_REG_TRIM;
+
+ struct i2c_msg msgs[] = {
+ { client->addr, 0, 1, &buf },
+ { client->addr, I2C_M_RD, 1, &buf },
+ };
+
+ if ((i2c_transfer(client->adapter, msgs, 2)) != 2) {
+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ dev_dbg(&client->dev, "%s: raw trim=%x\n", __FUNCTION__, trim);
+
+ if (osc)
+ *osc = (buf & RS5C372_TRIM_XSL) ? 32000 : 32768;
+
+ if (trim)
+ *trim = buf & RS5C372_TRIM_MASK;
+
+ return 0;
+}
+
+static int rs5c372_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ return rs5c372_get_datetime(to_i2c_client(dev), tm);
+}
+
+static int rs5c372_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ return rs5c372_set_datetime(to_i2c_client(dev), tm);
+}
+
+static int rs5c372_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ int err, osc, trim;
+
+ seq_printf(seq, "24hr\t\t: yes\n");
+
+ if ((err = rs5c372_get_trim(to_i2c_client(dev), &osc, &trim)) == 0) {
+ seq_printf(seq, "%d.%03d KHz\n", osc / 1000, osc % 1000);
+ seq_printf(seq, "trim\t: %d\n", trim);
+ }
+
+ return 0;
+}
+
+static struct rtc_class_ops rs5c372_rtc_ops = {
+ .proc = rs5c372_rtc_proc,
+ .read_time = rs5c372_rtc_read_time,
+ .set_time = rs5c372_rtc_set_time,
+};
+
+static ssize_t rs5c372_sysfs_show_trim(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int trim;
+
+ if (rs5c372_get_trim(to_i2c_client(dev), NULL, &trim) == 0)
+ return sprintf(buf, "0x%2x\n", trim);
+
+ return 0;
+}
+static DEVICE_ATTR(trim, S_IRUGO, rs5c372_sysfs_show_trim, NULL);
+
+static ssize_t rs5c372_sysfs_show_osc(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int osc;
+
+ if (rs5c372_get_trim(to_i2c_client(dev), &osc, NULL) == 0)
+ return sprintf(buf, "%d.%03d KHz\n", osc / 1000, osc % 1000);
+
+ return 0;
+}
+static DEVICE_ATTR(osc, S_IRUGO, rs5c372_sysfs_show_osc, NULL);
+
+static int rs5c372_attach(struct i2c_adapter *adapter)
+{
+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+ return i2c_probe(adapter, &addr_data, rs5c372_probe);
+}
+
+static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind)
+{
+ int err = 0;
+ struct i2c_client *client;
+ struct rtc_device *rtc;
+
+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
+ err = -ENODEV;
+ goto exit;
+ }
+
+ if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ /* I2C client */
+ client->addr = address;
+ client->driver = &rs5c372_driver;
+ client->adapter = adapter;
+
+ strlcpy(client->name, rs5c372_driver.driver.name, I2C_NAME_SIZE);
+
+ /* Inform the i2c layer */
+ if ((err = i2c_attach_client(client)))
+ goto exit_kfree;
+
+ dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
+
+ rtc = rtc_device_register(rs5c372_driver.driver.name, &client->dev,
+ &rs5c372_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ err = PTR_ERR(rtc);
+ dev_err(&client->dev,
+ "unable to register the class device\n");
+ goto exit_detach;
+ }
+
+ i2c_set_clientdata(client, rtc);
+
+ device_create_file(&client->dev, &dev_attr_trim);
+ device_create_file(&client->dev, &dev_attr_osc);
+
+ return 0;
+
+exit_detach:
+ i2c_detach_client(client);
+
+exit_kfree:
+ kfree(client);
+
+exit:
+ return err;
+}
+
+static int rs5c372_detach(struct i2c_client *client)
+{
+ int err;
+ struct rtc_device *rtc = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "%s\n", __FUNCTION__);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ if ((err = i2c_detach_client(client)))
+ return err;
+
+ kfree(client);
+
+ return 0;
+}
+
+static __init int rs5c372_init(void)
+{
+ return i2c_add_driver(&rs5c372_driver);
+}
+
+static __exit void rs5c372_exit(void)
+{
+ i2c_del_driver(&rs5c372_driver);
+}
+
+module_init(rs5c372_init);
+module_exit(rs5c372_exit);
+
+MODULE_AUTHOR(
+ "Pavel Mironchik <pmironchik@optifacio.net>, "
+ "Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("Ricoh RS5C372 RTC driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
new file mode 100644
index 00000000000..83b2bb480a1
--- /dev/null
+++ b/drivers/rtc/rtc-sa1100.c
@@ -0,0 +1,388 @@
+/*
+ * Real Time Clock interface for StrongARM SA1x00 and XScale PXA2xx
+ *
+ * Copyright (c) 2000 Nils Faerber
+ *
+ * Based on rtc.c by Paul Gortmaker
+ *
+ * Original Driver by Nils Faerber <nils@kernelconcepts.de>
+ *
+ * Modifications from:
+ * CIH <cih@coventive.com>
+ * Nicolas Pitre <nico@cam.org>
+ * Andrew Christian <andrew.christian@hp.com>
+ *
+ * Converted to the RTC subsystem and Driver Model
+ * by Richard Purdie <rpurdie@rpsys.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/pm.h>
+
+#include <asm/bitops.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/rtc.h>
+
+#ifdef CONFIG_ARCH_PXA
+#include <asm/arch/pxa-regs.h>
+#endif
+
+#define TIMER_FREQ CLOCK_TICK_RATE
+#define RTC_DEF_DIVIDER 32768 - 1
+#define RTC_DEF_TRIM 0
+
+static unsigned long rtc_freq = 1024;
+static struct rtc_time rtc_alarm;
+static spinlock_t sa1100_rtc_lock = SPIN_LOCK_UNLOCKED;
+
+static int rtc_update_alarm(struct rtc_time *alrm)
+{
+ struct rtc_time alarm_tm, now_tm;
+ unsigned long now, time;
+ int ret;
+
+ do {
+ now = RCNR;
+ rtc_time_to_tm(now, &now_tm);
+ rtc_next_alarm_time(&alarm_tm, &now_tm, alrm);
+ ret = rtc_tm_to_time(&alarm_tm, &time);
+ if (ret != 0)
+ break;
+
+ RTSR = RTSR & (RTSR_HZE|RTSR_ALE|RTSR_AL);
+ RTAR = time;
+ } while (now != RCNR);
+
+ return ret;
+}
+
+static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ struct platform_device *pdev = to_platform_device(dev_id);
+ struct rtc_device *rtc = platform_get_drvdata(pdev);
+ unsigned int rtsr;
+ unsigned long events = 0;
+
+ spin_lock(&sa1100_rtc_lock);
+
+ rtsr = RTSR;
+ /* clear interrupt sources */
+ RTSR = 0;
+ RTSR = (RTSR_AL | RTSR_HZ) & (rtsr >> 2);
+
+ /* clear alarm interrupt if it has occurred */
+ if (rtsr & RTSR_AL)
+ rtsr &= ~RTSR_ALE;
+ RTSR = rtsr & (RTSR_ALE | RTSR_HZE);
+
+ /* update irq data & counter */
+ if (rtsr & RTSR_AL)
+ events |= RTC_AF | RTC_IRQF;
+ if (rtsr & RTSR_HZ)
+ events |= RTC_UF | RTC_IRQF;
+
+ rtc_update_irq(&rtc->class_dev, 1, events);
+
+ if (rtsr & RTSR_AL && rtc_periodic_alarm(&rtc_alarm))
+ rtc_update_alarm(&rtc_alarm);
+
+ spin_unlock(&sa1100_rtc_lock);
+
+ return IRQ_HANDLED;
+}
+
+static int rtc_timer1_count;
+
+static irqreturn_t timer1_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ struct platform_device *pdev = to_platform_device(dev_id);
+ struct rtc_device *rtc = platform_get_drvdata(pdev);
+
+ /*
+ * If we match for the first time, rtc_timer1_count will be 1.
+ * Otherwise, we wrapped around (very unlikely but
+ * still possible) so compute the amount of missed periods.
+ * The match reg is updated only when the data is actually retrieved
+ * to avoid unnecessary interrupts.
+ */
+ OSSR = OSSR_M1; /* clear match on timer1 */
+
+ rtc_update_irq(&rtc->class_dev, rtc_timer1_count, RTC_PF | RTC_IRQF);
+
+ if (rtc_timer1_count == 1)
+ rtc_timer1_count = (rtc_freq * ((1<<30)/(TIMER_FREQ>>2)));
+
+ return IRQ_HANDLED;
+}
+
+static int sa1100_rtc_read_callback(struct device *dev, int data)
+{
+ if (data & RTC_PF) {
+ /* interpolate missed periods and set match for the next */
+ unsigned long period = TIMER_FREQ/rtc_freq;
+ unsigned long oscr = OSCR;
+ unsigned long osmr1 = OSMR1;
+ unsigned long missed = (oscr - osmr1)/period;
+ data += missed << 8;
+ OSSR = OSSR_M1; /* clear match on timer 1 */
+ OSMR1 = osmr1 + (missed + 1)*period;
+ /* Ensure we didn't miss another match in the mean time.
+ * Here we compare (match - OSCR) 8 instead of 0 --
+ * see comment in pxa_timer_interrupt() for explanation.
+ */
+ while( (signed long)((osmr1 = OSMR1) - OSCR) <= 8 ) {
+ data += 0x100;
+ OSSR = OSSR_M1; /* clear match on timer 1 */
+ OSMR1 = osmr1 + period;
+ }
+ }
+ return data;
+}
+
+static int sa1100_rtc_open(struct device *dev)
+{
+ int ret;
+
+ ret = request_irq(IRQ_RTC1Hz, sa1100_rtc_interrupt, SA_INTERRUPT,
+ "rtc 1Hz", dev);
+ if (ret) {
+ printk(KERN_ERR "rtc: IRQ%d already in use.\n", IRQ_RTC1Hz);
+ goto fail_ui;
+ }
+ ret = request_irq(IRQ_RTCAlrm, sa1100_rtc_interrupt, SA_INTERRUPT,
+ "rtc Alrm", dev);
+ if (ret) {
+ printk(KERN_ERR "rtc: IRQ%d already in use.\n", IRQ_RTCAlrm);
+ goto fail_ai;
+ }
+ ret = request_irq(IRQ_OST1, timer1_interrupt, SA_INTERRUPT,
+ "rtc timer", dev);
+ if (ret) {
+ printk(KERN_ERR "rtc: IRQ%d already in use.\n", IRQ_OST1);
+ goto fail_pi;
+ }
+ return 0;
+
+ fail_pi:
+ free_irq(IRQ_RTCAlrm, NULL);
+ fail_ai:
+ free_irq(IRQ_RTC1Hz, NULL);
+ fail_ui:
+ return ret;
+}
+
+static void sa1100_rtc_release(struct device *dev)
+{
+ spin_lock_irq(&sa1100_rtc_lock);
+ RTSR = 0;
+ OIER &= ~OIER_E1;
+ OSSR = OSSR_M1;
+ spin_unlock_irq(&sa1100_rtc_lock);
+
+ free_irq(IRQ_OST1, dev);
+ free_irq(IRQ_RTCAlrm, dev);
+ free_irq(IRQ_RTC1Hz, dev);
+}
+
+
+static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd,
+ unsigned long arg)
+{
+ switch(cmd) {
+ case RTC_AIE_OFF:
+ spin_lock_irq(&sa1100_rtc_lock);
+ RTSR &= ~RTSR_ALE;
+ spin_unlock_irq(&sa1100_rtc_lock);
+ return 0;
+ case RTC_AIE_ON:
+ spin_lock_irq(&sa1100_rtc_lock);
+ RTSR |= RTSR_ALE;
+ spin_unlock_irq(&sa1100_rtc_lock);
+ return 0;
+ case RTC_UIE_OFF:
+ spin_lock_irq(&sa1100_rtc_lock);
+ RTSR &= ~RTSR_HZE;
+ spin_unlock_irq(&sa1100_rtc_lock);
+ return 0;
+ case RTC_UIE_ON:
+ spin_lock_irq(&sa1100_rtc_lock);
+ RTSR |= RTSR_HZE;
+ spin_unlock_irq(&sa1100_rtc_lock);
+ return 0;
+ case RTC_PIE_OFF:
+ spin_lock_irq(&sa1100_rtc_lock);
+ OIER &= ~OIER_E1;
+ spin_unlock_irq(&sa1100_rtc_lock);
+ return 0;
+ case RTC_PIE_ON:
+ if ((rtc_freq > 64) && !capable(CAP_SYS_RESOURCE))
+ return -EACCES;
+ spin_lock_irq(&sa1100_rtc_lock);
+ OSMR1 = TIMER_FREQ/rtc_freq + OSCR;
+ OIER |= OIER_E1;
+ rtc_timer1_count = 1;
+ spin_unlock_irq(&sa1100_rtc_lock);
+ return 0;
+ case RTC_IRQP_READ:
+ return put_user(rtc_freq, (unsigned long *)arg);
+ case RTC_IRQP_SET:
+ if (arg < 1 || arg > TIMER_FREQ)
+ return -EINVAL;
+ if ((arg > 64) && (!capable(CAP_SYS_RESOURCE)))
+ return -EACCES;
+ rtc_freq = arg;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int sa1100_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ rtc_time_to_tm(RCNR, tm);
+ return 0;
+}
+
+static int sa1100_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ unsigned long time;
+ int ret;
+
+ ret = rtc_tm_to_time(tm, &time);
+ if (ret == 0)
+ RCNR = time;
+ return ret;
+}
+
+static int sa1100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ memcpy(&alrm->time, &rtc_alarm, sizeof(struct rtc_time));
+ alrm->pending = RTSR & RTSR_AL ? 1 : 0;
+ return 0;
+}
+
+static int sa1100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ int ret;
+
+ spin_lock_irq(&sa1100_rtc_lock);
+ ret = rtc_update_alarm(&alrm->time);
+ if (ret == 0) {
+ memcpy(&rtc_alarm, &alrm->time, sizeof(struct rtc_time));
+
+ if (alrm->enabled)
+ enable_irq_wake(IRQ_RTCAlrm);
+ else
+ disable_irq_wake(IRQ_RTCAlrm);
+ }
+ spin_unlock_irq(&sa1100_rtc_lock);
+
+ return ret;
+}
+
+static int sa1100_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ seq_printf(seq, "trim/divider\t: 0x%08x\n", RTTR);
+ seq_printf(seq, "alarm_IRQ\t: %s\n",
+ (RTSR & RTSR_ALE) ? "yes" : "no" );
+ seq_printf(seq, "update_IRQ\t: %s\n",
+ (RTSR & RTSR_HZE) ? "yes" : "no");
+ seq_printf(seq, "periodic_IRQ\t: %s\n",
+ (OIER & OIER_E1) ? "yes" : "no");
+ seq_printf(seq, "periodic_freq\t: %ld\n", rtc_freq);
+
+ return 0;
+}
+
+static struct rtc_class_ops sa1100_rtc_ops = {
+ .open = sa1100_rtc_open,
+ .read_callback = sa1100_rtc_read_callback,
+ .release = sa1100_rtc_release,
+ .ioctl = sa1100_rtc_ioctl,
+ .read_time = sa1100_rtc_read_time,
+ .set_time = sa1100_rtc_set_time,
+ .read_alarm = sa1100_rtc_read_alarm,
+ .set_alarm = sa1100_rtc_set_alarm,
+ .proc = sa1100_rtc_proc,
+};
+
+static int sa1100_rtc_probe(struct platform_device *pdev)
+{
+ struct rtc_device *rtc;
+
+ /*
+ * According to the manual we should be able to let RTTR be zero
+ * and then a default diviser for a 32.768KHz clock is used.
+ * Apparently this doesn't work, at least for my SA1110 rev 5.
+ * If the clock divider is uninitialized then reset it to the
+ * default value to get the 1Hz clock.
+ */
+ if (RTTR == 0) {
+ RTTR = RTC_DEF_DIVIDER + (RTC_DEF_TRIM << 16);
+ printk(KERN_WARNING "rtc: warning: initializing default clock divider/trim value\n");
+ /* The current RTC value probably doesn't make sense either */
+ RCNR = 0;
+ }
+
+ rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops,
+ THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ dev_err(&pdev->dev, "Unable to register the RTC device\n");
+ return PTR_ERR(rtc);
+ }
+
+ platform_set_drvdata(pdev, rtc);
+
+ dev_info(&pdev->dev, "SA11xx/PXA2xx RTC Registered\n");
+
+ return 0;
+}
+
+static int sa1100_rtc_remove(struct platform_device *pdev)
+{
+ struct rtc_device *rtc = platform_get_drvdata(pdev);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ return 0;
+}
+
+static struct platform_driver sa1100_rtc_driver = {
+ .probe = sa1100_rtc_probe,
+ .remove = sa1100_rtc_remove,
+ .driver = {
+ .name = "sa1100-rtc",
+ },
+};
+
+static int __init sa1100_rtc_init(void)
+{
+ return platform_driver_register(&sa1100_rtc_driver);
+}
+
+static void __exit sa1100_rtc_exit(void)
+{
+ platform_driver_unregister(&sa1100_rtc_driver);
+}
+
+module_init(sa1100_rtc_init);
+module_exit(sa1100_rtc_exit);
+
+MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
+MODULE_DESCRIPTION("SA11x0/PXA2xx Realtime Clock Driver (RTC)");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
new file mode 100644
index 00000000000..7c1f3d2e53c
--- /dev/null
+++ b/drivers/rtc/rtc-sysfs.c
@@ -0,0 +1,124 @@
+/*
+ * RTC subsystem, sysfs interface
+ *
+ * Copyright (C) 2005 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+
+/* device attributes */
+
+static ssize_t rtc_sysfs_show_name(struct class_device *dev, char *buf)
+{
+ return sprintf(buf, "%s\n", to_rtc_device(dev)->name);
+}
+static CLASS_DEVICE_ATTR(name, S_IRUGO, rtc_sysfs_show_name, NULL);
+
+static ssize_t rtc_sysfs_show_date(struct class_device *dev, char *buf)
+{
+ ssize_t retval;
+ struct rtc_time tm;
+
+ retval = rtc_read_time(dev, &tm);
+ if (retval == 0) {
+ retval = sprintf(buf, "%04d-%02d-%02d\n",
+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
+ }
+
+ return retval;
+}
+static CLASS_DEVICE_ATTR(date, S_IRUGO, rtc_sysfs_show_date, NULL);
+
+static ssize_t rtc_sysfs_show_time(struct class_device *dev, char *buf)
+{
+ ssize_t retval;
+ struct rtc_time tm;
+
+ retval = rtc_read_time(dev, &tm);
+ if (retval == 0) {
+ retval = sprintf(buf, "%02d:%02d:%02d\n",
+ tm.tm_hour, tm.tm_min, tm.tm_sec);
+ }
+
+ return retval;
+}
+static CLASS_DEVICE_ATTR(time, S_IRUGO, rtc_sysfs_show_time, NULL);
+
+static ssize_t rtc_sysfs_show_since_epoch(struct class_device *dev, char *buf)
+{
+ ssize_t retval;
+ struct rtc_time tm;
+
+ retval = rtc_read_time(dev, &tm);
+ if (retval == 0) {
+ unsigned long time;
+ rtc_tm_to_time(&tm, &time);
+ retval = sprintf(buf, "%lu\n", time);
+ }
+
+ return retval;
+}
+static CLASS_DEVICE_ATTR(since_epoch, S_IRUGO, rtc_sysfs_show_since_epoch, NULL);
+
+static struct attribute *rtc_attrs[] = {
+ &class_device_attr_name.attr,
+ &class_device_attr_date.attr,
+ &class_device_attr_time.attr,
+ &class_device_attr_since_epoch.attr,
+ NULL,
+};
+
+static struct attribute_group rtc_attr_group = {
+ .attrs = rtc_attrs,
+};
+
+static int __devinit rtc_sysfs_add_device(struct class_device *class_dev,
+ struct class_interface *class_intf)
+{
+ int err;
+
+ dev_info(class_dev->dev, "rtc intf: sysfs\n");
+
+ err = sysfs_create_group(&class_dev->kobj, &rtc_attr_group);
+ if (err)
+ dev_err(class_dev->dev,
+ "failed to create sysfs attributes\n");
+
+ return err;
+}
+
+static void rtc_sysfs_remove_device(struct class_device *class_dev,
+ struct class_interface *class_intf)
+{
+ sysfs_remove_group(&class_dev->kobj, &rtc_attr_group);
+}
+
+/* interface registration */
+
+static struct class_interface rtc_sysfs_interface = {
+ .add = &rtc_sysfs_add_device,
+ .remove = &rtc_sysfs_remove_device,
+};
+
+static int __init rtc_sysfs_init(void)
+{
+ return rtc_interface_register(&rtc_sysfs_interface);
+}
+
+static void __exit rtc_sysfs_exit(void)
+{
+ class_interface_unregister(&rtc_sysfs_interface);
+}
+
+module_init(rtc_sysfs_init);
+module_exit(rtc_sysfs_exit);
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("RTC class sysfs interface");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c
new file mode 100644
index 00000000000..43d10748782
--- /dev/null
+++ b/drivers/rtc/rtc-test.c
@@ -0,0 +1,204 @@
+/*
+ * An RTC test device/driver
+ * Copyright (C) 2005 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+
+static struct platform_device *test0 = NULL, *test1 = NULL;
+
+static int test_rtc_read_alarm(struct device *dev,
+ struct rtc_wkalrm *alrm)
+{
+ return 0;
+}
+
+static int test_rtc_set_alarm(struct device *dev,
+ struct rtc_wkalrm *alrm)
+{
+ return 0;
+}
+
+static int test_rtc_read_time(struct device *dev,
+ struct rtc_time *tm)
+{
+ rtc_time_to_tm(get_seconds(), tm);
+ return 0;
+}
+
+static int test_rtc_set_time(struct device *dev,
+ struct rtc_time *tm)
+{
+ return 0;
+}
+
+static int test_rtc_set_mmss(struct device *dev, unsigned long secs)
+{
+ return 0;
+}
+
+static int test_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ struct platform_device *plat_dev = to_platform_device(dev);
+
+ seq_printf(seq, "24hr\t\t: yes\n");
+ seq_printf(seq, "test\t\t: yes\n");
+ seq_printf(seq, "id\t\t: %d\n", plat_dev->id);
+
+ return 0;
+}
+
+static int test_rtc_ioctl(struct device *dev, unsigned int cmd,
+ unsigned long arg)
+{
+ /* We do support interrupts, they're generated
+ * using the sysfs interface.
+ */
+ switch (cmd) {
+ case RTC_PIE_ON:
+ case RTC_PIE_OFF:
+ case RTC_UIE_ON:
+ case RTC_UIE_OFF:
+ case RTC_AIE_ON:
+ case RTC_AIE_OFF:
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static struct rtc_class_ops test_rtc_ops = {
+ .proc = test_rtc_proc,
+ .read_time = test_rtc_read_time,
+ .set_time = test_rtc_set_time,
+ .read_alarm = test_rtc_read_alarm,
+ .set_alarm = test_rtc_set_alarm,
+ .set_mmss = test_rtc_set_mmss,
+ .ioctl = test_rtc_ioctl,
+};
+
+static ssize_t test_irq_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%d\n", 42);
+}
+static ssize_t test_irq_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int retval;
+ struct platform_device *plat_dev = to_platform_device(dev);
+ struct rtc_device *rtc = platform_get_drvdata(plat_dev);
+
+ retval = count;
+ if (strncmp(buf, "tick", 4) == 0)
+ rtc_update_irq(&rtc->class_dev, 1, RTC_PF | RTC_IRQF);
+ else if (strncmp(buf, "alarm", 5) == 0)
+ rtc_update_irq(&rtc->class_dev, 1, RTC_AF | RTC_IRQF);
+ else if (strncmp(buf, "update", 6) == 0)
+ rtc_update_irq(&rtc->class_dev, 1, RTC_UF | RTC_IRQF);
+ else
+ retval = -EINVAL;
+
+ return retval;
+}
+static DEVICE_ATTR(irq, S_IRUGO | S_IWUSR, test_irq_show, test_irq_store);
+
+static int test_probe(struct platform_device *plat_dev)
+{
+ int err;
+ struct rtc_device *rtc = rtc_device_register("test", &plat_dev->dev,
+ &test_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc)) {
+ err = PTR_ERR(rtc);
+ dev_err(&plat_dev->dev,
+ "unable to register the class device\n");
+ return err;
+ }
+ device_create_file(&plat_dev->dev, &dev_attr_irq);
+
+ platform_set_drvdata(plat_dev, rtc);
+
+ return 0;
+}
+
+static int __devexit test_remove(struct platform_device *plat_dev)
+{
+ struct rtc_device *rtc = platform_get_drvdata(plat_dev);
+
+ rtc_device_unregister(rtc);
+ device_remove_file(&plat_dev->dev, &dev_attr_irq);
+
+ return 0;
+}
+
+static struct platform_driver test_drv = {
+ .probe = test_probe,
+ .remove = __devexit_p(test_remove),
+ .driver = {
+ .name = "rtc-test",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init test_init(void)
+{
+ int err;
+
+ if ((err = platform_driver_register(&test_drv)))
+ return err;
+
+ if ((test0 = platform_device_alloc("rtc-test", 0)) == NULL) {
+ err = -ENOMEM;
+ goto exit_driver_unregister;
+ }
+
+ if ((test1 = platform_device_alloc("rtc-test", 1)) == NULL) {
+ err = -ENOMEM;
+ goto exit_free_test0;
+ }
+
+ if ((err = platform_device_add(test0)))
+ goto exit_free_test1;
+
+ if ((err = platform_device_add(test1)))
+ goto exit_device_unregister;
+
+ return 0;
+
+exit_device_unregister:
+ platform_device_unregister(test0);
+
+exit_free_test1:
+ platform_device_put(test1);
+
+exit_free_test0:
+ platform_device_put(test0);
+
+exit_driver_unregister:
+ platform_driver_unregister(&test_drv);
+ return err;
+}
+
+static void __exit test_exit(void)
+{
+ platform_device_unregister(test0);
+ platform_device_unregister(test1);
+ platform_driver_unregister(&test_drv);
+}
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("RTC test driver/device");
+MODULE_LICENSE("GPL");
+
+module_init(test_init);
+module_exit(test_exit);
diff --git a/drivers/i2c/chips/x1205.c b/drivers/rtc/rtc-x1205.c
index 245fffa92db..621d17afc0d 100644
--- a/drivers/i2c/chips/x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -1,32 +1,25 @@
/*
- * x1205.c - An i2c driver for the Xicor X1205 RTC
- * Copyright 2004 Karen Spearel
- * Copyright 2005 Alessandro Zummo
+ * An i2c driver for the Xicor/Intersil X1205 RTC
+ * Copyright 2004 Karen Spearel
+ * Copyright 2005 Alessandro Zummo
*
- * please send all reports to:
- * kas11 at tampabay dot rr dot com
- * a dot zummo at towertech dot it
+ * please send all reports to:
+ * Karen Spearel <kas111 at gmail dot com>
+ * Alessandro Zummo <a.zummo@towertech.it>
*
- * based on the other drivers in this same directory.
+ * based on a lot of other RTC drivers.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
*/
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/i2c.h>
-#include <linux/string.h>
#include <linux/bcd.h>
#include <linux/rtc.h>
-#include <linux/list.h>
+#include <linux/delay.h>
-#include <linux/x1205.h>
-
-#define DRV_VERSION "0.9.9"
+#define DRV_VERSION "1.0.6"
/* Addresses to scan: none. This chip is located at
* 0x6f and uses a two bytes register addressing.
@@ -40,8 +33,6 @@ static unsigned short normal_i2c[] = { I2C_CLIENT_END };
/* Insmod parameters */
I2C_CLIENT_INSMOD;
-I2C_CLIENT_MODULE_PARM(hctosys,
- "Set the system time from the hardware clock upon initialization");
/* offsets into CCR area */
@@ -101,107 +92,35 @@ I2C_CLIENT_MODULE_PARM(hctosys,
static int x1205_attach(struct i2c_adapter *adapter);
static int x1205_detach(struct i2c_client *client);
static int x1205_probe(struct i2c_adapter *adapter, int address, int kind);
-static int x1205_command(struct i2c_client *client, unsigned int cmd,
- void *arg);
static struct i2c_driver x1205_driver = {
- .driver = {
+ .driver = {
.name = "x1205",
},
+ .id = I2C_DRIVERID_X1205,
.attach_adapter = &x1205_attach,
.detach_client = &x1205_detach,
};
-struct x1205_data {
- struct i2c_client client;
- struct list_head list;
- unsigned int epoch;
-};
-
-static const unsigned char days_in_mo[] =
- { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-
-static LIST_HEAD(x1205_clients);
-
-/* Workaround until the I2C subsytem will allow to send
- * commands to a specific client. This function will send the command
- * to the first client.
- */
-int x1205_do_command(unsigned int cmd, void *arg)
-{
- struct list_head *walk;
- struct list_head *tmp;
- struct x1205_data *data;
-
- list_for_each_safe(walk, tmp, &x1205_clients) {
- data = list_entry(walk, struct x1205_data, list);
- return x1205_command(&data->client, cmd, arg);
- }
-
- return -ENODEV;
-}
-
-#define is_leap(year) \
- ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-
-/* make sure the rtc_time values are in bounds */
-static int x1205_validate_tm(struct rtc_time *tm)
-{
- int year = tm->tm_year + 1900;
-
- if ((tm->tm_year < 70) || (tm->tm_year > 255))
- return -EINVAL;
-
- if ((tm->tm_mon > 11) || (tm->tm_mday == 0))
- return -EINVAL;
-
- if (tm->tm_mday > days_in_mo[tm->tm_mon]
- + ((tm->tm_mon == 1) && is_leap(year)))
- return -EINVAL;
-
- if ((tm->tm_hour >= 24) || (tm->tm_min >= 60) || (tm->tm_sec >= 60))
- return -EINVAL;
-
- return 0;
-}
-
/*
* In the routines that deal directly with the x1205 hardware, we use
* rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch
* Epoch is initialized as 2000. Time is set to UTC.
*/
static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
- u8 reg_base)
+ unsigned char reg_base)
{
unsigned char dt_addr[2] = { 0, reg_base };
- static unsigned char sr_addr[2] = { 0, X1205_REG_SR };
- unsigned char buf[8], sr;
+ unsigned char buf[8];
struct i2c_msg msgs[] = {
- { client->addr, 0, 2, sr_addr }, /* setup read ptr */
- { client->addr, I2C_M_RD, 1, &sr }, /* read status */
{ client->addr, 0, 2, dt_addr }, /* setup read ptr */
{ client->addr, I2C_M_RD, 8, buf }, /* read date */
};
- struct x1205_data *data = i2c_get_clientdata(client);
-
- /* read status register */
- if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
- dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
- return -EIO;
- }
-
- /* check for battery failure */
- if (sr & X1205_SR_RTCF) {
- dev_warn(&client->dev,
- "Clock had a power failure, you must set the date.\n");
- return -EINVAL;
- }
-
/* read date registers */
- if ((i2c_transfer(client->adapter, &msgs[2], 2)) != 2) {
+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
return -EIO;
}
@@ -217,9 +136,9 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
tm->tm_min = BCD2BIN(buf[CCR_MIN]);
tm->tm_hour = BCD2BIN(buf[CCR_HOUR] & 0x3F); /* hr is 0-23 */
tm->tm_mday = BCD2BIN(buf[CCR_MDAY]);
- tm->tm_mon = BCD2BIN(buf[CCR_MONTH]);
- data->epoch = BCD2BIN(buf[CCR_Y2K]) * 100;
- tm->tm_year = BCD2BIN(buf[CCR_YEAR]) + data->epoch - 1900;
+ tm->tm_mon = BCD2BIN(buf[CCR_MONTH]) - 1; /* mon is 0-11 */
+ tm->tm_year = BCD2BIN(buf[CCR_YEAR])
+ + (BCD2BIN(buf[CCR_Y2K]) * 100) - 1900;
tm->tm_wday = buf[CCR_WDAY];
dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
@@ -231,11 +150,28 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
return 0;
}
+static int x1205_get_status(struct i2c_client *client, unsigned char *sr)
+{
+ static unsigned char sr_addr[2] = { 0, X1205_REG_SR };
+
+ struct i2c_msg msgs[] = {
+ { client->addr, 0, 2, sr_addr }, /* setup read ptr */
+ { client->addr, I2C_M_RD, 1, sr }, /* read status */
+ };
+
+ /* read status register */
+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
int datetoo, u8 reg_base)
{
- int i, err, xfer;
-
+ int i, xfer;
unsigned char buf[8];
static const unsigned char wel[3] = { 0, X1205_REG_SR,
@@ -246,17 +182,10 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
static const unsigned char diswe[3] = { 0, X1205_REG_SR, 0 };
- struct x1205_data *data = i2c_get_clientdata(client);
-
- /* check if all values in the tm struct are correct */
- if ((err = x1205_validate_tm(tm)) < 0)
- return err;
-
- dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
- "mday=%d, mon=%d, year=%d, wday=%d\n",
+ dev_dbg(&client->dev,
+ "%s: secs=%d, mins=%d, hours=%d\n",
__FUNCTION__,
- tm->tm_sec, tm->tm_min, tm->tm_hour,
- tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+ tm->tm_sec, tm->tm_min, tm->tm_hour);
buf[CCR_SEC] = BIN2BCD(tm->tm_sec);
buf[CCR_MIN] = BIN2BCD(tm->tm_min);
@@ -266,26 +195,29 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
/* should we also set the date? */
if (datetoo) {
+ dev_dbg(&client->dev,
+ "%s: mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__,
+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+
buf[CCR_MDAY] = BIN2BCD(tm->tm_mday);
- /* month, 0 - 11 */
- buf[CCR_MONTH] = BIN2BCD(tm->tm_mon);
+ /* month, 1 - 12 */
+ buf[CCR_MONTH] = BIN2BCD(tm->tm_mon + 1);
- /* year, since 1900 */
- buf[CCR_YEAR] = BIN2BCD(tm->tm_year + 1900 - data->epoch);
+ /* year, since the rtc epoch*/
+ buf[CCR_YEAR] = BIN2BCD(tm->tm_year % 100);
buf[CCR_WDAY] = tm->tm_wday & 0x07;
- buf[CCR_Y2K] = BIN2BCD(data->epoch / 100);
+ buf[CCR_Y2K] = BIN2BCD(tm->tm_year / 100);
}
/* this sequence is required to unlock the chip */
- xfer = i2c_master_send(client, wel, 3);
- if (xfer != 3) {
+ if ((xfer = i2c_master_send(client, wel, 3)) != 3) {
dev_err(&client->dev, "%s: wel - %d\n", __FUNCTION__, xfer);
return -EIO;
}
- xfer = i2c_master_send(client, rwel, 3);
- if (xfer != 3) {
+ if ((xfer = i2c_master_send(client, rwel, 3)) != 3) {
dev_err(&client->dev, "%s: rwel - %d\n", __FUNCTION__, xfer);
return -EIO;
}
@@ -305,8 +237,7 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
};
/* disable further writes */
- xfer = i2c_master_send(client, diswe, 3);
- if (xfer != 3) {
+ if ((xfer = i2c_master_send(client, diswe, 3)) != 3) {
dev_err(&client->dev, "%s: diswe - %d\n", __FUNCTION__, xfer);
return -EIO;
}
@@ -314,6 +245,20 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
return 0;
}
+static int x1205_fix_osc(struct i2c_client *client)
+{
+ int err;
+ struct rtc_time tm;
+
+ tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+
+ if ((err = x1205_set_datetime(client, &tm, 0, X1205_CCR_BASE)) < 0)
+ dev_err(&client->dev,
+ "unable to restart the oscillator\n");
+
+ return err;
+}
+
static int x1205_get_dtrim(struct i2c_client *client, int *trim)
{
unsigned char dtr;
@@ -380,60 +325,9 @@ static int x1205_get_atrim(struct i2c_client *client, int *trim)
return 0;
}
-static int x1205_hctosys(struct i2c_client *client)
-{
- int err;
-
- struct rtc_time tm;
- struct timespec tv;
-
- err = x1205_command(client, X1205_CMD_GETDATETIME, &tm);
-
- if (err) {
- dev_err(&client->dev,
- "Unable to set the system clock\n");
- return err;
- }
-
- /* IMPORTANT: the RTC only stores whole seconds. It is arbitrary
- * whether it stores the most close value or the value with partial
- * seconds truncated. However, it is important that we use it to store
- * the truncated value. This is because otherwise it is necessary,
- * in an rtc sync function, to read both xtime.tv_sec and
- * xtime.tv_nsec. On some processors (i.e. ARM), an atomic read
- * of >32bits is not possible. So storing the most close value would
- * slow down the sync API. So here we have the truncated value and
- * the best guess is to add 0.5s.
- */
-
- tv.tv_nsec = NSEC_PER_SEC >> 1;
-
- /* WARNING: this is not the C library 'mktime' call, it is a built in
- * inline function from include/linux/time.h. It expects (requires)
- * the month to be in the range 1-12
- */
-
- tv.tv_sec = mktime(tm.tm_year + 1900, tm.tm_mon + 1,
- tm.tm_mday, tm.tm_hour,
- tm.tm_min, tm.tm_sec);
-
- do_settimeofday(&tv);
-
- dev_info(&client->dev,
- "setting the system clock to %d-%d-%d %d:%d:%d\n",
- tm.tm_year + 1900, tm.tm_mon + 1,
- tm.tm_mday, tm.tm_hour, tm.tm_min,
- tm.tm_sec);
-
- return 0;
-}
-
struct x1205_limit
{
- unsigned char reg;
- unsigned char mask;
- unsigned char min;
- unsigned char max;
+ unsigned char reg, mask, min, max;
};
static int x1205_validate_client(struct i2c_client *client)
@@ -477,11 +371,10 @@ static int x1205_validate_client(struct i2c_client *client)
{ client->addr, I2C_M_RD, 1, &buf },
};
- xfer = i2c_transfer(client->adapter, msgs, 2);
- if (xfer != 2) {
+ if ((xfer = i2c_transfer(client->adapter, msgs, 2)) != 2) {
dev_err(&client->adapter->dev,
"%s: could not read register %x\n",
- __FUNCTION__, addr[1]);
+ __FUNCTION__, probe_zero_pattern[i]);
return -EIO;
}
@@ -489,7 +382,7 @@ static int x1205_validate_client(struct i2c_client *client)
if ((buf & probe_zero_pattern[i+1]) != 0) {
dev_err(&client->adapter->dev,
"%s: register=%02x, zero pattern=%d, value=%x\n",
- __FUNCTION__, addr[1], i, buf);
+ __FUNCTION__, probe_zero_pattern[i], i, buf);
return -ENODEV;
}
@@ -506,12 +399,10 @@ static int x1205_validate_client(struct i2c_client *client)
{ client->addr, I2C_M_RD, 1, &reg },
};
- xfer = i2c_transfer(client->adapter, msgs, 2);
-
- if (xfer != 2) {
+ if ((xfer = i2c_transfer(client->adapter, msgs, 2)) != 2) {
dev_err(&client->adapter->dev,
"%s: could not read register %x\n",
- __FUNCTION__, addr[1]);
+ __FUNCTION__, probe_limits_pattern[i].reg);
return -EIO;
}
@@ -522,7 +413,8 @@ static int x1205_validate_client(struct i2c_client *client)
value < probe_limits_pattern[i].min) {
dev_dbg(&client->adapter->dev,
"%s: register=%x, lim pattern=%d, value=%d\n",
- __FUNCTION__, addr[1], i, value);
+ __FUNCTION__, probe_limits_pattern[i].reg,
+ i, value);
return -ENODEV;
}
@@ -531,37 +423,89 @@ static int x1205_validate_client(struct i2c_client *client)
return 0;
}
-static int x1205_attach(struct i2c_adapter *adapter)
+static int x1205_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{
- dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+ return x1205_get_datetime(to_i2c_client(dev),
+ &alrm->time, X1205_ALM0_BASE);
+}
- return i2c_probe(adapter, &addr_data, x1205_probe);
+static int x1205_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ return x1205_set_datetime(to_i2c_client(dev),
+ &alrm->time, 1, X1205_ALM0_BASE);
}
-int x1205_direct_attach(int adapter_id,
- struct i2c_client_address_data *address_data)
+static int x1205_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
- int err;
- struct i2c_adapter *adapter = i2c_get_adapter(adapter_id);
+ return x1205_get_datetime(to_i2c_client(dev),
+ tm, X1205_CCR_BASE);
+}
- if (adapter) {
- err = i2c_probe(adapter,
- address_data, x1205_probe);
+static int x1205_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ return x1205_set_datetime(to_i2c_client(dev),
+ tm, 1, X1205_CCR_BASE);
+}
- i2c_put_adapter(adapter);
+static int x1205_rtc_proc(struct device *dev, struct seq_file *seq)
+{
+ int err, dtrim, atrim;
- return err;
- }
+ seq_printf(seq, "24hr\t\t: yes\n");
- return -ENODEV;
+ if ((err = x1205_get_dtrim(to_i2c_client(dev), &dtrim)) == 0)
+ seq_printf(seq, "digital_trim\t: %d ppm\n", dtrim);
+
+ if ((err = x1205_get_atrim(to_i2c_client(dev), &atrim)) == 0)
+ seq_printf(seq, "analog_trim\t: %d.%02d pF\n",
+ atrim / 1000, atrim % 1000);
+ return 0;
}
-static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
+static struct rtc_class_ops x1205_rtc_ops = {
+ .proc = x1205_rtc_proc,
+ .read_time = x1205_rtc_read_time,
+ .set_time = x1205_rtc_set_time,
+ .read_alarm = x1205_rtc_read_alarm,
+ .set_alarm = x1205_rtc_set_alarm,
+};
+
+static ssize_t x1205_sysfs_show_atrim(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct i2c_client *client;
- struct x1205_data *data;
+ int atrim;
+
+ if (x1205_get_atrim(to_i2c_client(dev), &atrim) == 0)
+ return sprintf(buf, "%d.%02d pF\n",
+ atrim / 1000, atrim % 1000);
+ return 0;
+}
+static DEVICE_ATTR(atrim, S_IRUGO, x1205_sysfs_show_atrim, NULL);
+
+static ssize_t x1205_sysfs_show_dtrim(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int dtrim;
+
+ if (x1205_get_dtrim(to_i2c_client(dev), &dtrim) == 0)
+ return sprintf(buf, "%d ppm\n", dtrim);
+
+ return 0;
+}
+static DEVICE_ATTR(dtrim, S_IRUGO, x1205_sysfs_show_dtrim, NULL);
+static int x1205_attach(struct i2c_adapter *adapter)
+{
+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+ return i2c_probe(adapter, &addr_data, x1205_probe);
+}
+
+static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
+{
int err = 0;
+ unsigned char sr;
+ struct i2c_client *client;
+ struct rtc_device *rtc;
dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
@@ -570,22 +514,17 @@ static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
goto exit;
}
- if (!(data = kzalloc(sizeof(struct x1205_data), GFP_KERNEL))) {
+ if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
- /* Initialize our structures */
- data->epoch = 2000;
-
- client = &data->client;
+ /* I2C client */
client->addr = address;
client->driver = &x1205_driver;
client->adapter = adapter;
- strlcpy(client->name, "x1205", I2C_NAME_SIZE);
-
- i2c_set_clientdata(client, data);
+ strlcpy(client->name, x1205_driver.driver.name, I2C_NAME_SIZE);
/* Verify the chip is really an X1205 */
if (kind < 0) {
@@ -599,18 +538,43 @@ static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
if ((err = i2c_attach_client(client)))
goto exit_kfree;
- list_add(&data->list, &x1205_clients);
-
dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
- /* If requested, set the system time */
- if (hctosys)
- x1205_hctosys(client);
+ rtc = rtc_device_register(x1205_driver.driver.name, &client->dev,
+ &x1205_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc)) {
+ err = PTR_ERR(rtc);
+ dev_err(&client->dev,
+ "unable to register the class device\n");
+ goto exit_detach;
+ }
+
+ i2c_set_clientdata(client, rtc);
+
+ /* Check for power failures and eventualy enable the osc */
+ if ((err = x1205_get_status(client, &sr)) == 0) {
+ if (sr & X1205_SR_RTCF) {
+ dev_err(&client->dev,
+ "power failure detected, "
+ "please set the clock\n");
+ udelay(50);
+ x1205_fix_osc(client);
+ }
+ }
+ else
+ dev_err(&client->dev, "couldn't read status\n");
+
+ device_create_file(&client->dev, &dev_attr_atrim);
+ device_create_file(&client->dev, &dev_attr_dtrim);
return 0;
+exit_detach:
+ i2c_detach_client(client);
+
exit_kfree:
- kfree(data);
+ kfree(client);
exit:
return err;
@@ -619,61 +583,21 @@ exit:
static int x1205_detach(struct i2c_client *client)
{
int err;
- struct x1205_data *data = i2c_get_clientdata(client);
+ struct rtc_device *rtc = i2c_get_clientdata(client);
dev_dbg(&client->dev, "%s\n", __FUNCTION__);
+ if (rtc)
+ rtc_device_unregister(rtc);
+
if ((err = i2c_detach_client(client)))
return err;
- list_del(&data->list);
-
- kfree(data);
+ kfree(client);
return 0;
}
-static int x1205_command(struct i2c_client *client, unsigned int cmd,
- void *param)
-{
- if (param == NULL)
- return -EINVAL;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- dev_dbg(&client->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);
-
- switch (cmd) {
- case X1205_CMD_GETDATETIME:
- return x1205_get_datetime(client, param, X1205_CCR_BASE);
-
- case X1205_CMD_SETTIME:
- return x1205_set_datetime(client, param, 0,
- X1205_CCR_BASE);
-
- case X1205_CMD_SETDATETIME:
- return x1205_set_datetime(client, param, 1,
- X1205_CCR_BASE);
-
- case X1205_CMD_GETALARM:
- return x1205_get_datetime(client, param, X1205_ALM0_BASE);
-
- case X1205_CMD_SETALARM:
- return x1205_set_datetime(client, param, 1,
- X1205_ALM0_BASE);
-
- case X1205_CMD_GETDTRIM:
- return x1205_get_dtrim(client, param);
-
- case X1205_CMD_GETATRIM:
- return x1205_get_atrim(client, param);
-
- default:
- return -EINVAL;
- }
-}
-
static int __init x1205_init(void)
{
return i2c_add_driver(&x1205_driver);
@@ -685,14 +609,11 @@ static void __exit x1205_exit(void)
}
MODULE_AUTHOR(
- "Karen Spearel <kas11@tampabay.rr.com>, "
+ "Karen Spearel <kas111 at gmail dot com>, "
"Alessandro Zummo <a.zummo@towertech.it>");
-MODULE_DESCRIPTION("Xicor X1205 RTC driver");
+MODULE_DESCRIPTION("Xicor/Intersil X1205 RTC driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-EXPORT_SYMBOL_GPL(x1205_do_command);
-EXPORT_SYMBOL_GPL(x1205_direct_attach);
-
module_init(x1205_init);
module_exit(x1205_exit);
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 0ab26d01877..0d2b447c50e 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1026,7 +1026,7 @@ static void twa_free_request_id(TW_Device_Extension *tw_dev, int request_id)
tw_dev->free_tail = (tw_dev->free_tail + 1) % TW_Q_LENGTH;
} /* End twa_free_request_id() */
-/* This function will get parameter table entires from the firmware */
+/* This function will get parameter table entries from the firmware */
static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int table_id, int parameter_id, int parameter_size_bytes)
{
TW_Command_Full *full_command_packet;
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index 1c459343292..bde3d5834ad 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -41,6 +41,8 @@
#include <linux/stat.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+#include <linux/dma-mapping.h>
#include <scsi/scsicam.h>
#include <asm/dma.h>
@@ -676,7 +678,7 @@ static int __init BusLogic_InitializeMultiMasterProbeInfo(struct BusLogic_HostAd
if (pci_enable_device(PCI_Device))
continue;
- if (pci_set_dma_mask(PCI_Device, (u64) 0xffffffff))
+ if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK ))
continue;
Bus = PCI_Device->bus->number;
@@ -831,7 +833,7 @@ static int __init BusLogic_InitializeMultiMasterProbeInfo(struct BusLogic_HostAd
if (pci_enable_device(PCI_Device))
continue;
- if (pci_set_dma_mask(PCI_Device, (u64) 0xffffffff))
+ if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK))
continue;
Bus = PCI_Device->bus->number;
@@ -885,7 +887,7 @@ static int __init BusLogic_InitializeFlashPointProbeInfo(struct BusLogic_HostAda
if (pci_enable_device(PCI_Device))
continue;
- if (pci_set_dma_mask(PCI_Device, (u64) 0xffffffff))
+ if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK))
continue;
Bus = PCI_Device->bus->number;
@@ -2896,7 +2898,7 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou
*/
if (HostAdapter->ActiveCommands[TargetID] == 0)
HostAdapter->LastSequencePoint[TargetID] = jiffies;
- else if (jiffies - HostAdapter->LastSequencePoint[TargetID] > 4 * HZ) {
+ else if (time_after(jiffies, HostAdapter->LastSequencePoint[TargetID] + 4 * HZ)) {
HostAdapter->LastSequencePoint[TargetID] = jiffies;
QueueTag = BusLogic_OrderedQueueTag;
}
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index 9f45ae1745d..3dce21c7873 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -89,6 +89,7 @@
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/slab.h>
+#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -1052,7 +1053,7 @@ static int __devinit inia100_probe_one(struct pci_dev *pdev,
if (pci_enable_device(pdev))
goto out;
- if (pci_set_dma_mask(pdev, 0xffffffffULL)) {
+ if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "Unable to set 32bit DMA "
"on inia100 adapter, ignoring.\n");
goto out_disable_device;
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index a16f8ded8f1..8df4a0ea376 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -32,6 +32,7 @@
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
+#include <linux/dma-mapping.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index c2596335549..72033077864 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -45,6 +45,7 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/dma-mapping.h>
#include <linux/syscalls.h>
#include <linux/delay.h>
#include <linux/smp_lock.h>
@@ -806,8 +807,8 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
* to driver communication memory to be allocated below 2gig
*/
if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
- if (pci_set_dma_mask(pdev, 0x7FFFFFFFULL) ||
- pci_set_consistent_dma_mask(pdev, 0x7FFFFFFFULL))
+ if (pci_set_dma_mask(pdev, DMA_31BIT_MASK) ||
+ pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK))
goto out;
pci_set_master(pdev);
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 5227a779c05..a198d86667e 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -28,6 +28,7 @@
#include <linux/spinlock.h>
#include <linux/pci.h>
#include <linux/blkdev.h>
+#include <linux/dma-mapping.h>
#include <asm/system.h>
#include <asm/io.h>
@@ -2631,7 +2632,7 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (pci_enable_device(pdev))
return -EIO;
- if (!pci_set_dma_mask(pdev, 0xFFFFFFFFUL)) {
+ if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
printk(KERN_INFO "atp870u: use 32bit DMA mask.\n");
} else {
printk(KERN_ERR "atp870u: DMA mask required but not available.\n");
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 6e6b293dcb2..b1b704a42ef 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -57,6 +57,7 @@ MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
#include <linux/reboot.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
+#include <linux/dma-mapping.h>
#include <linux/timer.h>
#include <linux/string.h>
@@ -906,8 +907,8 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
}
pci_set_master(pDev);
- if (pci_set_dma_mask(pDev, 0xffffffffffffffffULL) &&
- pci_set_dma_mask(pDev, 0xffffffffULL))
+ if (pci_set_dma_mask(pDev, DMA_64BIT_MASK) &&
+ pci_set_dma_mask(pDev, DMA_32BIT_MASK))
return -EINVAL;
base_addr0_phys = pci_resource_start(pDev,0);
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index b3f9de8f759..059eeee4b55 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -490,6 +490,7 @@
#include <linux/init.h>
#include <linux/ctype.h>
#include <linux/spinlock.h>
+#include <linux/dma-mapping.h>
#include <asm/byteorder.h>
#include <asm/dma.h>
#include <asm/io.h>
@@ -1426,7 +1427,7 @@ static int port_detect(unsigned long port_base, unsigned int j,
if (ha->pdev) {
pci_set_master(ha->pdev);
- if (pci_set_dma_mask(ha->pdev, 0xffffffff))
+ if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK))
printk("%s: warning, pci_set_dma_mask failed.\n",
ha->board_name);
}
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 62e3cda859a..d5740bbdef3 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -388,6 +388,7 @@
#include <linux/proc_fs.h>
#include <linux/time.h>
#include <linux/timer.h>
+#include <linux/dma-mapping.h>
#ifdef GDTH_RTC
#include <linux/mc146818rtc.h>
#endif
@@ -671,7 +672,7 @@ static struct file_operations gdth_fops = {
static struct notifier_block gdth_notifier = {
gdth_halt, NULL, 0
};
-
+static int notifier_disabled = 0;
static void gdth_delay(int milliseconds)
{
@@ -4527,15 +4528,15 @@ static int __init gdth_detect(struct scsi_host_template *shtp)
if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
/* 64-bit DMA only supported from FW >= x.43 */
(!ha->dma64_support)) {
- if (pci_set_dma_mask(pcistr[ctr].pdev, 0xffffffff)) {
+ if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
err = TRUE;
}
} else {
shp->max_cmd_len = 16;
- if (!pci_set_dma_mask(pcistr[ctr].pdev, 0xffffffffffffffffULL)) {
+ if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
- } else if (pci_set_dma_mask(pcistr[ctr].pdev, 0xffffffff)) {
+ } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
err = TRUE;
}
@@ -4595,13 +4596,13 @@ static int __init gdth_detect(struct scsi_host_template *shtp)
add_timer(&gdth_timer);
#endif
major = register_chrdev(0,"gdth",&gdth_fops);
+ notifier_disabled = 0;
register_reboot_notifier(&gdth_notifier);
}
gdth_polling = FALSE;
return gdth_ctr_vcount;
}
-
static int gdth_release(struct Scsi_Host *shp)
{
int hanum;
@@ -5632,10 +5633,14 @@ static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
char cmnd[MAX_COMMAND_SIZE];
#endif
+ if (notifier_disabled)
+ return NOTIFY_OK;
+
TRACE2(("gdth_halt() event %d\n",(int)event));
if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
return NOTIFY_DONE;
+ notifier_disabled = 1;
printk("GDT-HA: Flushing all host drives .. ");
for (hanum = 0; hanum < gdth_ctr_count; ++hanum) {
gdth_flush(hanum);
@@ -5679,7 +5684,6 @@ static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
#ifdef GDTH_STATISTICS
del_timer(&gdth_timer);
#endif
- unregister_reboot_notifier(&gdth_notifier);
return NOTIFY_OK;
}
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index ea6f3c0e05d..0cc7f65b584 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -127,6 +127,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
+#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <scsi/scsi.h>
@@ -2780,7 +2781,7 @@ static int tul_NewReturnNumberOfAdapters(void)
if (((dRegValue & 0xFF00) >> 8) == 0xFF)
dRegValue = 0;
wBIOS = (wBIOS << 8) + ((UWORD) ((dRegValue & 0xFF00) >> 8));
- if (pci_set_dma_mask(pDev, 0xffffffff)) {
+ if (pci_set_dma_mask(pDev, DMA_32BIT_MASK)) {
printk(KERN_WARNING
"i91u: Could not set 32 bit DMA mask\n");
continue;
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 481708d527a..a4c0b04cfdb 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -179,6 +179,7 @@
#include <linux/blkdev.h>
#include <linux/types.h>
+#include <linux/dma-mapping.h>
#include <scsi/sg.h>
@@ -7284,10 +7285,10 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
* are guaranteed to be < 4G.
*/
if (IPS_ENABLE_DMA64 && IPS_HAS_ENH_SGLIST(ha) &&
- !pci_set_dma_mask(ha->pcidev, 0xffffffffffffffffULL)) {
+ !pci_set_dma_mask(ha->pcidev, DMA_64BIT_MASK)) {
(ha)->flags |= IPS_HA_ENH_SG;
} else {
- if (pci_set_dma_mask(ha->pcidev, 0xffffffffULL) != 0) {
+ if (pci_set_dma_mask(ha->pcidev, DMA_32BIT_MASK) != 0) {
printk(KERN_WARNING "Unable to set DMA Mask\n");
return ips_abort_init(ha, index);
}
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 7144674bc8e..80b68a2481b 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -45,6 +45,7 @@
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/dma-mapping.h>
#include <scsi/scsicam.h>
#include "scsi.h"
@@ -2094,7 +2095,7 @@ make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));
- if( pci_set_dma_mask(*pdev, 0xffffffff) != 0 ) {
+ if( pci_set_dma_mask(*pdev, DMA_32BIT_MASK) != 0 ) {
kfree(*pdev);
return -1;
}
@@ -4859,10 +4860,10 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
/* Set the Mode of addressing to 64 bit if we can */
if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) {
- pci_set_dma_mask(pdev, 0xffffffffffffffffULL);
+ pci_set_dma_mask(pdev, DMA_64BIT_MASK);
adapter->has_64bit_addr = 1;
} else {
- pci_set_dma_mask(pdev, 0xffffffff);
+ pci_set_dma_mask(pdev, DMA_32BIT_MASK);
adapter->has_64bit_addr = 0;
}
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index a279ebb6144..30ee0ef4b45 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -38,6 +38,7 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/ctype.h>
+#include <linux/dma-mapping.h>
#include <asm/dma.h>
#include <asm/system.h>
@@ -2776,7 +2777,7 @@ static int nsp32_detect(struct scsi_host_template *sht)
/*
* setup DMA
*/
- if (pci_set_dma_mask(PCIDEV, 0xffffffffUL) != 0) {
+ if (pci_set_dma_mask(PCIDEV, DMA_32BIT_MASK) != 0) {
nsp32_msg (KERN_ERR, "failed to set PCI DMA mask");
goto scsi_unregister;
}
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 66ea47a9c53..e3bd4bc339f 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -49,6 +49,7 @@ static const char * osst_version = "0.99.4";
#include <linux/blkdev.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
+#include <linux/jiffies.h>
#include <asm/uaccess.h>
#include <asm/dma.h>
#include <asm/system.h>
@@ -856,7 +857,7 @@ static int osst_wait_frame(struct osst_tape * STp, struct osst_request ** aSRpnt
) && result >= 0)
{
#if DEBUG
- if (debugging || jiffies - startwait >= 2*HZ/OSST_POLL_PER_SEC)
+ if (debugging || time_after_eq(jiffies, startwait + 2*HZ/OSST_POLL_PER_SEC))
printk (OSST_DEB_MSG
"%s:D: Succ wait f fr %i (>%i): %i-%i %i (%i): %3li.%li s\n",
name, curr, curr+minlast, STp->first_frame_position,
@@ -867,7 +868,7 @@ static int osst_wait_frame(struct osst_tape * STp, struct osst_request ** aSRpnt
return 0;
}
#if DEBUG
- if (jiffies - startwait >= 2*HZ/OSST_POLL_PER_SEC && notyetprinted)
+ if (time_after_eq(jiffies, startwait + 2*HZ/OSST_POLL_PER_SEC) && notyetprinted)
{
printk (OSST_DEB_MSG "%s:D: Wait for frame %i (>%i): %i-%i %i (%i)\n",
name, curr, curr+minlast, STp->first_frame_position,
diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 05347eed9dd..fee843fab1c 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -18,6 +18,7 @@
#include <linux/parport.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
+#include <linux/jiffies.h>
#include <asm/io.h>
#include <scsi/scsi.h>
@@ -726,7 +727,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
retv--;
if (retv) {
- if ((jiffies - dev->jstart) > (1 * HZ)) {
+ if (time_after(jiffies, dev->jstart + (1 * HZ))) {
printk
("ppa: Parallel port cable is unplugged!!\n");
ppa_fail(dev, DID_BUS_BUSY);
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index e0230249fa0..5a48e55f941 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -350,6 +350,7 @@
#include <linux/pci_ids.h>
#include <linux/interrupt.h>
#include <linux/init.h>
+#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -4321,7 +4322,7 @@ qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
#ifdef QLA_64BIT_PTR
if (pci_set_dma_mask(ha->pdev, (dma_addr_t) ~ 0ULL)) {
- if (pci_set_dma_mask(ha->pdev, 0xffffffff)) {
+ if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "scsi(%li): Unable to set a "
"suitable DMA mask - aborting\n", ha->host_no);
error = -ENODEV;
@@ -4331,7 +4332,7 @@ qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
ha->host_no);
#else
- if (pci_set_dma_mask(ha->pdev, 0xffffffff)) {
+ if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "scsi(%li): Unable to set a "
"suitable DMA mask - aborting\n", ha->host_no);
error = -ENODEV;
diff --git a/drivers/scsi/qlogicfc.c b/drivers/scsi/qlogicfc.c
index 94ef3f08d37..52b224a5d6f 100644
--- a/drivers/scsi/qlogicfc.c
+++ b/drivers/scsi/qlogicfc.c
@@ -61,6 +61,8 @@
#include <linux/unistd.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/jiffies.h>
#include <asm/io.h>
#include <asm/irq.h>
#include "scsi.h"
@@ -737,8 +739,8 @@ static int isp2x00_detect(struct scsi_host_template * tmpt)
continue;
/* Try to configure DMA attributes. */
- if (pci_set_dma_mask(pdev, 0xffffffffffffffffULL) &&
- pci_set_dma_mask(pdev, 0xffffffffULL))
+ if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
+ pci_set_dma_mask(pdev, DMA_32BIT_MASK))
continue;
host = scsi_register(tmpt, sizeof(struct isp2x00_hostdata));
@@ -1325,7 +1327,7 @@ static int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
cmd->control_flags = cpu_to_le16(CFLAG_READ);
if (Cmnd->device->tagged_supported) {
- if ((jiffies - hostdata->tag_ages[Cmnd->device->id]) > (2 * ISP_TIMEOUT)) {
+ if (time_after(jiffies, hostdata->tag_ages[Cmnd->device->id] + (2 * ISP_TIMEOUT))) {
cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
hostdata->tag_ages[Cmnd->device->id] = jiffies;
} else
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 1fd5fc6d0fe..c7e78dcf09d 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -24,6 +24,7 @@
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/module.h>
+#include <linux/jiffies.h>
#include <asm/byteorder.h>
@@ -1017,7 +1018,7 @@ static inline void cmd_frob(struct Command_Entry *cmd, struct scsi_cmnd *Cmnd,
if (Cmnd->device->tagged_supported) {
if (qpti->cmd_count[Cmnd->device->id] == 0)
qpti->tag_ages[Cmnd->device->id] = jiffies;
- if ((jiffies - qpti->tag_ages[Cmnd->device->id]) > (5*HZ)) {
+ if (time_after(jiffies, qpti->tag_ages[Cmnd->device->id] + (5*HZ))) {
cmd->control_flags = CFLAG_ORDERED_TAG;
qpti->tag_ages[Cmnd->device->id] = jiffies;
} else
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 5996d3cd0ed..674b15c78f6 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1528,7 +1528,7 @@ static int serial8250_startup(struct uart_port *port)
/*
* Clear the FIFO buffers and disable them.
- * (they will be reeanbled in set_termios())
+ * (they will be reenabled in set_termios())
*/
serial8250_clear_fifos(up);
diff --git a/drivers/serial/8250_au1x00.c b/drivers/serial/8250_au1x00.c
index 8d8d7a70d03..3d1bfd07208 100644
--- a/drivers/serial/8250_au1x00.c
+++ b/drivers/serial/8250_au1x00.c
@@ -51,7 +51,7 @@ static struct plat_serial8250_port au1x00_data[] = {
#elif defined(CONFIG_SOC_AU1100)
PORT(UART0_ADDR, AU1100_UART0_INT),
PORT(UART1_ADDR, AU1100_UART1_INT),
- PORT(UART2_ADDR, AU1100_UART2_INT),
+ /* The internal UART2 does not exist on the AU1100 processor. */
PORT(UART3_ADDR, AU1100_UART3_INT),
#elif defined(CONFIG_SOC_AU1550)
PORT(UART0_ADDR, AU1550_UART0_INT),
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index ceb3697bf84..fe0d8b8e91c 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -620,22 +620,6 @@ config SERIAL_SH_SCI_CONSOLE
depends on SERIAL_SH_SCI=y
select SERIAL_CORE_CONSOLE
-config SERIAL_AU1X00
- bool "Enable Au1x00 UART Support"
- depends on MIPS && SOC_AU1X00
- select SERIAL_CORE
- help
- If you have an Alchemy AU1X00 processor (MIPS based) and you want
- to use serial ports, say Y. Otherwise, say N.
-
-config SERIAL_AU1X00_CONSOLE
- bool "Enable Au1x00 serial console"
- depends on SERIAL_AU1X00
- select SERIAL_CORE_CONSOLE
- help
- If you have an Alchemy AU1X00 processor (MIPS based) and you want
- to use a console on a serial port, say Y. Otherwise, say N.
-
config SERIAL_CORE
tristate
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index a3a4323d9c8..d2b4c214876 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -41,7 +41,6 @@ obj-$(CONFIG_SERIAL_COLDFIRE) += mcfserial.o
obj-$(CONFIG_V850E_UART) += v850e_uart.o
obj-$(CONFIG_SERIAL_PMACZILOG) += pmac_zilog.o
obj-$(CONFIG_SERIAL_LH7A40X) += serial_lh7a40x.o
-obj-$(CONFIG_SERIAL_AU1X00) += au1x00_uart.o
obj-$(CONFIG_SERIAL_DZ) += dz.o
obj-$(CONFIG_SERIAL_SH_SCI) += sh-sci.o
obj-$(CONFIG_SERIAL_SGI_L1_CONSOLE) += sn_console.o
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 127d6cd5de7..1631414000a 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -51,8 +51,6 @@
#include <linux/amba/serial.h>
#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/hardware.h>
#define UART_NR 2
@@ -65,26 +63,16 @@
#define UART_RX_DATA(s) (((s) & UART01x_FR_RXFE) == 0)
#define UART_TX_READY(s) (((s) & UART01x_FR_TXFF) == 0)
-#define UART_DUMMY_RSR_RX /*256*/0
+#define UART_DUMMY_RSR_RX 256
#define UART_PORT_SIZE 64
/*
- * On the Integrator platform, the port RTS and DTR are provided by
- * bits in the following SC_CTRLS register bits:
- * RTS DTR
- * UART0 7 6
- * UART1 5 4
- */
-#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET)
-#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET)
-
-/*
* We wrap our port structure around the generic uart_port.
*/
struct uart_amba_port {
struct uart_port port;
- unsigned int dtr_mask;
- unsigned int rts_mask;
+ struct amba_device *dev;
+ struct amba_pl010_data *data;
unsigned int old_status;
};
@@ -300,20 +288,9 @@ static unsigned int pl010_get_mctrl(struct uart_port *port)
static void pl010_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct uart_amba_port *uap = (struct uart_amba_port *)port;
- unsigned int ctrls = 0, ctrlc = 0;
-
- if (mctrl & TIOCM_RTS)
- ctrlc |= uap->rts_mask;
- else
- ctrls |= uap->rts_mask;
- if (mctrl & TIOCM_DTR)
- ctrlc |= uap->dtr_mask;
- else
- ctrls |= uap->dtr_mask;
-
- __raw_writel(ctrls, SC_CTRLS);
- __raw_writel(ctrlc, SC_CTRLC);
+ if (uap->data)
+ uap->data->set_mctrl(uap->dev, uap->port.membase, mctrl);
}
static void pl010_break_ctl(struct uart_port *port, int break_state)
@@ -539,38 +516,7 @@ static struct uart_ops amba_pl010_pops = {
.verify_port = pl010_verify_port,
};
-static struct uart_amba_port amba_ports[UART_NR] = {
- {
- .port = {
- .membase = (void *)IO_ADDRESS(INTEGRATOR_UART0_BASE),
- .mapbase = INTEGRATOR_UART0_BASE,
- .iotype = UPIO_MEM,
- .irq = IRQ_UARTINT0,
- .uartclk = 14745600,
- .fifosize = 16,
- .ops = &amba_pl010_pops,
- .flags = UPF_BOOT_AUTOCONF,
- .line = 0,
- },
- .dtr_mask = 1 << 5,
- .rts_mask = 1 << 4,
- },
- {
- .port = {
- .membase = (void *)IO_ADDRESS(INTEGRATOR_UART1_BASE),
- .mapbase = INTEGRATOR_UART1_BASE,
- .iotype = UPIO_MEM,
- .irq = IRQ_UARTINT1,
- .uartclk = 14745600,
- .fifosize = 16,
- .ops = &amba_pl010_pops,
- .flags = UPF_BOOT_AUTOCONF,
- .line = 1,
- },
- .dtr_mask = 1 << 7,
- .rts_mask = 1 << 6,
- }
-};
+static struct uart_amba_port *amba_ports[UART_NR];
#ifdef CONFIG_SERIAL_AMBA_PL010_CONSOLE
@@ -588,7 +534,7 @@ static void pl010_console_putchar(struct uart_port *port, int ch)
static void
pl010_console_write(struct console *co, const char *s, unsigned int count)
{
- struct uart_port *port = &amba_ports[co->index].port;
+ struct uart_port *port = &amba_ports[co->index]->port;
unsigned int status, old_cr;
/*
@@ -651,7 +597,7 @@ static int __init pl010_console_setup(struct console *co, char *options)
*/
if (co->index >= UART_NR)
co->index = 0;
- port = &amba_ports[co->index].port;
+ port = &amba_ports[co->index]->port;
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -672,24 +618,6 @@ static struct console amba_console = {
.data = &amba_reg,
};
-static int __init amba_console_init(void)
-{
- /*
- * All port initializations are done statically
- */
- register_console(&amba_console);
- return 0;
-}
-console_initcall(amba_console_init);
-
-static int __init amba_late_console_init(void)
-{
- if (!(amba_console.flags & CON_ENABLED))
- register_console(&amba_console);
- return 0;
-}
-late_initcall(amba_late_console_init);
-
#define AMBA_CONSOLE &amba_console
#else
#define AMBA_CONSOLE NULL
@@ -707,30 +635,76 @@ static struct uart_driver amba_reg = {
static int pl010_probe(struct amba_device *dev, void *id)
{
- int i;
+ struct uart_amba_port *port;
+ void __iomem *base;
+ int i, ret;
- for (i = 0; i < UART_NR; i++) {
- if (amba_ports[i].port.mapbase != dev->res.start)
- continue;
+ for (i = 0; i < ARRAY_SIZE(amba_ports); i++)
+ if (amba_ports[i] == NULL)
+ break;
- amba_ports[i].port.dev = &dev->dev;
- uart_add_one_port(&amba_reg, &amba_ports[i].port);
- amba_set_drvdata(dev, &amba_ports[i]);
- break;
+ if (i == ARRAY_SIZE(amba_ports)) {
+ ret = -EBUSY;
+ goto out;
}
- return 0;
+ port = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
+ if (!port) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ base = ioremap(dev->res.start, PAGE_SIZE);
+ if (!base) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ port->port.dev = &dev->dev;
+ port->port.mapbase = dev->res.start;
+ port->port.membase = base;
+ port->port.iotype = UPIO_MEM;
+ port->port.irq = dev->irq[0];
+ port->port.uartclk = 14745600;
+ port->port.fifosize = 16;
+ port->port.ops = &amba_pl010_pops;
+ port->port.flags = UPF_BOOT_AUTOCONF;
+ port->port.line = i;
+ port->dev = dev;
+ port->data = dev->dev.platform_data;
+
+ amba_ports[i] = port;
+
+ amba_set_drvdata(dev, port);
+ ret = uart_add_one_port(&amba_reg, &port->port);
+ if (ret) {
+ amba_set_drvdata(dev, NULL);
+ amba_ports[i] = NULL;
+ iounmap(base);
+ free:
+ kfree(port);
+ }
+
+ out:
+ return ret;
}
static int pl010_remove(struct amba_device *dev)
{
- struct uart_amba_port *uap = amba_get_drvdata(dev);
-
- if (uap)
- uart_remove_one_port(&amba_reg, &uap->port);
+ struct uart_amba_port *port = amba_get_drvdata(dev);
+ int i;
amba_set_drvdata(dev, NULL);
+ uart_remove_one_port(&amba_reg, &port->port);
+
+ for (i = 0; i < ARRAY_SIZE(amba_ports); i++)
+ if (amba_ports[i] == port)
+ amba_ports[i] = NULL;
+
+ iounmap(port->port.membase);
+ kfree(port);
+
return 0;
}
diff --git a/drivers/serial/au1x00_uart.c b/drivers/serial/au1x00_uart.c
deleted file mode 100644
index 948880ac587..00000000000
--- a/drivers/serial/au1x00_uart.c
+++ /dev/null
@@ -1,1287 +0,0 @@
-/*
- * Driver for 8250/16550-type serial ports
- *
- * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
- *
- * Copyright (C) 2001 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * A note about mapbase / membase
- *
- * mapbase is the physical address of the IO port. Currently, we don't
- * support this very well, and it may well be dropped from this driver
- * in future. As such, mapbase should be NULL.
- *
- * membase is an 'ioremapped' cookie. This is compatible with the old
- * serial.c driver, and is currently the preferred form.
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <linux/delay.h>
-
-#include <asm/serial.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach-au1x00/au1000.h>
-
-#if defined(CONFIG_SERIAL_AU1X00_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
-#include <linux/serial_core.h>
-#include "8250.h"
-
-/*
- * Debugging.
- */
-#if 0
-#define DEBUG_AUTOCONF(fmt...) printk(fmt)
-#else
-#define DEBUG_AUTOCONF(fmt...) do { } while (0)
-#endif
-
-#if 0
-#define DEBUG_INTR(fmt...) printk(fmt)
-#else
-#define DEBUG_INTR(fmt...) do { } while (0)
-#endif
-
-#define PASS_LIMIT 256
-
-/*
- * We default to IRQ0 for the "no irq" hack. Some
- * machine types want others as well - they're free
- * to redefine this in their header file.
- */
-#define is_real_interrupt(irq) ((irq) != 0)
-
-static struct old_serial_port old_serial_port[] = {
- { .baud_base = 0,
- .iomem_base = (u8 *)UART0_ADDR,
- .irq = AU1000_UART0_INT,
- .flags = STD_COM_FLAGS,
- .iomem_reg_shift = 2,
- }, {
- .baud_base = 0,
- .iomem_base = (u8 *)UART1_ADDR,
- .irq = AU1000_UART1_INT,
- .flags = STD_COM_FLAGS,
- .iomem_reg_shift = 2
- }, {
- .baud_base = 0,
- .iomem_base = (u8 *)UART2_ADDR,
- .irq = AU1000_UART2_INT,
- .flags = STD_COM_FLAGS,
- .iomem_reg_shift = 2
- }, {
- .baud_base = 0,
- .iomem_base = (u8 *)UART3_ADDR,
- .irq = AU1000_UART3_INT,
- .flags = STD_COM_FLAGS,
- .iomem_reg_shift = 2
- }
-};
-
-#define UART_NR ARRAY_SIZE(old_serial_port)
-
-struct uart_8250_port {
- struct uart_port port;
- struct timer_list timer; /* "no irq" timer */
- struct list_head list; /* ports on this IRQ */
- unsigned short rev;
- unsigned char acr;
- unsigned char ier;
- unsigned char lcr;
- unsigned char mcr_mask; /* mask of user bits */
- unsigned char mcr_force; /* mask of forced bits */
- unsigned char lsr_break_flag;
-
- /*
- * We provide a per-port pm hook.
- */
- void (*pm)(struct uart_port *port,
- unsigned int state, unsigned int old);
-};
-
-struct irq_info {
- spinlock_t lock;
- struct list_head *head;
-};
-
-static struct irq_info irq_lists[NR_IRQS];
-
-/*
- * Here we define the default xmit fifo size used for each type of UART.
- */
-static const struct serial_uart_config uart_config[PORT_MAX_8250+1] = {
- { "unknown", 1, 0 },
- { "8250", 1, 0 },
- { "16450", 1, 0 },
- { "16550", 1, 0 },
- /* PORT_16550A */
- { "AU1X00_UART",16, UART_CLEAR_FIFO | UART_USE_FIFO },
-};
-
-static unsigned int serial_in(struct uart_8250_port *up, int offset)
-{
- return au_readl((unsigned long)up->port.membase + offset);
-}
-
-static void serial_out(struct uart_8250_port *up, int offset, int value)
-{
- au_writel(value, (unsigned long)up->port.membase + offset);
-}
-
-#define serial_inp(up, offset) serial_in(up, offset)
-#define serial_outp(up, offset, value) serial_out(up, offset, value)
-
-/*
- * This routine is called by rs_init() to initialize a specific serial
- * port. It determines what type of UART chip this serial port is
- * using: 8250, 16450, 16550, 16550A. The important question is
- * whether or not this UART is a 16550A or not, since this will
- * determine whether or not we can use its FIFO features or not.
- */
-static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
-{
- unsigned char save_lcr, save_mcr;
- unsigned long flags;
-
- if (!up->port.iobase && !up->port.mapbase && !up->port.membase)
- return;
-
- DEBUG_AUTOCONF("ttyS%d: autoconf (0x%04x, 0x%08lx): ",
- up->port.line, up->port.iobase, up->port.membase);
-
- /*
- * We really do need global IRQs disabled here - we're going to
- * be frobbing the chips IRQ enable register to see if it exists.
- */
- spin_lock_irqsave(&up->port.lock, flags);
-// save_flags(flags); cli();
-
- save_mcr = serial_in(up, UART_MCR);
- save_lcr = serial_in(up, UART_LCR);
-
- up->port.type = PORT_16550A;
- serial_outp(up, UART_LCR, save_lcr);
-
- up->port.fifosize = uart_config[up->port.type].dfl_xmit_fifo_size;
-
- if (up->port.type == PORT_UNKNOWN)
- goto out;
-
- /*
- * Reset the UART.
- */
- serial_outp(up, UART_MCR, save_mcr);
- serial_outp(up, UART_FCR, (UART_FCR_ENABLE_FIFO |
- UART_FCR_CLEAR_RCVR |
- UART_FCR_CLEAR_XMIT));
- serial_outp(up, UART_FCR, 0);
- (void)serial_in(up, UART_RX);
- serial_outp(up, UART_IER, 0);
-
- out:
- spin_unlock_irqrestore(&up->port.lock, flags);
-// restore_flags(flags);
- DEBUG_AUTOCONF("type=%s\n", uart_config[up->port.type].name);
-}
-
-static void serial8250_stop_tx(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
-
- if (up->ier & UART_IER_THRI) {
- up->ier &= ~UART_IER_THRI;
- serial_out(up, UART_IER, up->ier);
- }
-}
-
-static void serial8250_start_tx(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
-
- if (!(up->ier & UART_IER_THRI)) {
- up->ier |= UART_IER_THRI;
- serial_out(up, UART_IER, up->ier);
- }
-}
-
-static void serial8250_stop_rx(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
-
- up->ier &= ~UART_IER_RLSI;
- up->port.read_status_mask &= ~UART_LSR_DR;
- serial_out(up, UART_IER, up->ier);
-}
-
-static void serial8250_enable_ms(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
-
- up->ier |= UART_IER_MSI;
- serial_out(up, UART_IER, up->ier);
-}
-
-static void
-receive_chars(struct uart_8250_port *up, int *status, struct pt_regs *regs)
-{
- struct tty_struct *tty = up->port.info->tty;
- unsigned char ch, flag;
- int max_count = 256;
-
- do {
- ch = serial_inp(up, UART_RX);
- flag = TTY_NORMAL;
- up->port.icount.rx++;
-
- if (unlikely(*status & (UART_LSR_BI | UART_LSR_PE |
- UART_LSR_FE | UART_LSR_OE))) {
- /*
- * For statistics only
- */
- if (*status & UART_LSR_BI) {
- *status &= ~(UART_LSR_FE | UART_LSR_PE);
- up->port.icount.brk++;
- /*
- * We do the SysRQ and SAK checking
- * here because otherwise the break
- * may get masked by ignore_status_mask
- * or read_status_mask.
- */
- if (uart_handle_break(&up->port))
- goto ignore_char;
- } else if (*status & UART_LSR_PE)
- up->port.icount.parity++;
- else if (*status & UART_LSR_FE)
- up->port.icount.frame++;
- if (*status & UART_LSR_OE)
- up->port.icount.overrun++;
-
- /*
- * Mask off conditions which should be ingored.
- */
- *status &= up->port.read_status_mask;
-
-#ifdef CONFIG_SERIAL_AU1X00_CONSOLE
- if (up->port.line == up->port.cons->index) {
- /* Recover the break flag from console xmit */
- *status |= up->lsr_break_flag;
- up->lsr_break_flag = 0;
- }
-#endif
- if (*status & UART_LSR_BI) {
- DEBUG_INTR("handling break....");
- flag = TTY_BREAK;
- } else if (*status & UART_LSR_PE)
- flag = TTY_PARITY;
- else if (*status & UART_LSR_FE)
- flag = TTY_FRAME;
- }
- if (uart_handle_sysrq_char(&up->port, ch, regs))
- goto ignore_char;
- if ((*status & up->port.ignore_status_mask) == 0)
- tty_insert_flip_char(tty, ch, flag);
- if (*status & UART_LSR_OE)
- /*
- * Overrun is special, since it's reported
- * immediately, and doesn't affect the current
- * character.
- */
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- }
- ignore_char:
- *status = serial_inp(up, UART_LSR);
- } while ((*status & UART_LSR_DR) && (max_count-- > 0));
- spin_unlock(&up->port.lock);
- tty_flip_buffer_push(tty);
- spin_lock(&up->port.lock);
-}
-
-static void transmit_chars(struct uart_8250_port *up)
-{
- struct circ_buf *xmit = &up->port.info->xmit;
- int count;
-
- if (up->port.x_char) {
- serial_outp(up, UART_TX, up->port.x_char);
- up->port.icount.tx++;
- up->port.x_char = 0;
- return;
- }
- if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
- serial8250_stop_tx(&up->port);
- return;
- }
-
- count = up->port.fifosize;
- do {
- serial_out(up, UART_TX, xmit->buf[xmit->tail]);
- xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
- up->port.icount.tx++;
- if (uart_circ_empty(xmit))
- break;
- } while (--count > 0);
-
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
- uart_write_wakeup(&up->port);
-
- DEBUG_INTR("THRE...");
-
- if (uart_circ_empty(xmit))
- serial8250_stop_tx(&up->port);
-}
-
-static void check_modem_status(struct uart_8250_port *up)
-{
- int status;
-
- status = serial_in(up, UART_MSR);
-
- if ((status & UART_MSR_ANY_DELTA) == 0)
- return;
-
- if (status & UART_MSR_TERI)
- up->port.icount.rng++;
- if (status & UART_MSR_DDSR)
- up->port.icount.dsr++;
- if (status & UART_MSR_DDCD)
- uart_handle_dcd_change(&up->port, status & UART_MSR_DCD);
- if (status & UART_MSR_DCTS)
- uart_handle_cts_change(&up->port, status & UART_MSR_CTS);
-
- wake_up_interruptible(&up->port.info->delta_msr_wait);
-}
-
-/*
- * This handles the interrupt from one port.
- */
-static inline void
-serial8250_handle_port(struct uart_8250_port *up, struct pt_regs *regs)
-{
- unsigned int status = serial_inp(up, UART_LSR);
-
- DEBUG_INTR("status = %x...", status);
-
- if (status & UART_LSR_DR)
- receive_chars(up, &status, regs);
- check_modem_status(up);
- if (status & UART_LSR_THRE)
- transmit_chars(up);
-}
-
-/*
- * This is the serial driver's interrupt routine.
- *
- * Arjan thinks the old way was overly complex, so it got simplified.
- * Alan disagrees, saying that need the complexity to handle the weird
- * nature of ISA shared interrupts. (This is a special exception.)
- *
- * In order to handle ISA shared interrupts properly, we need to check
- * that all ports have been serviced, and therefore the ISA interrupt
- * line has been de-asserted.
- *
- * This means we need to loop through all ports. checking that they
- * don't have an interrupt pending.
- */
-static irqreturn_t serial8250_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct irq_info *i = dev_id;
- struct list_head *l, *end = NULL;
- int pass_counter = 0;
-
- DEBUG_INTR("serial8250_interrupt(%d)...", irq);
-
- spin_lock(&i->lock);
-
- l = i->head;
- do {
- struct uart_8250_port *up;
- unsigned int iir;
-
- up = list_entry(l, struct uart_8250_port, list);
-
- iir = serial_in(up, UART_IIR);
- if (!(iir & UART_IIR_NO_INT)) {
- spin_lock(&up->port.lock);
- serial8250_handle_port(up, regs);
- spin_unlock(&up->port.lock);
-
- end = NULL;
- } else if (end == NULL)
- end = l;
-
- l = l->next;
-
- if (l == i->head && pass_counter++ > PASS_LIMIT) {
- /* If we hit this, we're dead. */
- printk(KERN_ERR "serial8250: too much work for "
- "irq%d\n", irq);
- break;
- }
- } while (l != end);
-
- spin_unlock(&i->lock);
-
- DEBUG_INTR("end.\n");
- /* FIXME! Was it really ours? */
- return IRQ_HANDLED;
-}
-
-/*
- * To support ISA shared interrupts, we need to have one interrupt
- * handler that ensures that the IRQ line has been deasserted
- * before returning. Failing to do this will result in the IRQ
- * line being stuck active, and, since ISA irqs are edge triggered,
- * no more IRQs will be seen.
- */
-static void serial_do_unlink(struct irq_info *i, struct uart_8250_port *up)
-{
- spin_lock_irq(&i->lock);
-
- if (!list_empty(i->head)) {
- if (i->head == &up->list)
- i->head = i->head->next;
- list_del(&up->list);
- } else {
- BUG_ON(i->head != &up->list);
- i->head = NULL;
- }
-
- spin_unlock_irq(&i->lock);
-}
-
-static int serial_link_irq_chain(struct uart_8250_port *up)
-{
- struct irq_info *i = irq_lists + up->port.irq;
- int ret, irq_flags = up->port.flags & UPF_SHARE_IRQ ? SA_SHIRQ : 0;
-
- spin_lock_irq(&i->lock);
-
- if (i->head) {
- list_add(&up->list, i->head);
- spin_unlock_irq(&i->lock);
-
- ret = 0;
- } else {
- INIT_LIST_HEAD(&up->list);
- i->head = &up->list;
- spin_unlock_irq(&i->lock);
-
- ret = request_irq(up->port.irq, serial8250_interrupt,
- irq_flags, "serial", i);
- if (ret < 0)
- serial_do_unlink(i, up);
- }
-
- return ret;
-}
-
-static void serial_unlink_irq_chain(struct uart_8250_port *up)
-{
- struct irq_info *i = irq_lists + up->port.irq;
-
- BUG_ON(i->head == NULL);
-
- if (list_empty(i->head))
- free_irq(up->port.irq, i);
-
- serial_do_unlink(i, up);
-}
-
-/*
- * This function is used to handle ports that do not have an
- * interrupt. This doesn't work very well for 16450's, but gives
- * barely passable results for a 16550A. (Although at the expense
- * of much CPU overhead).
- */
-static void serial8250_timeout(unsigned long data)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)data;
- unsigned int timeout;
- unsigned int iir;
-
- iir = serial_in(up, UART_IIR);
- if (!(iir & UART_IIR_NO_INT)) {
- spin_lock(&up->port.lock);
- serial8250_handle_port(up, NULL);
- spin_unlock(&up->port.lock);
- }
-
- timeout = up->port.timeout;
- timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
- mod_timer(&up->timer, jiffies + timeout);
-}
-
-static unsigned int serial8250_tx_empty(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned long flags;
- unsigned int ret;
-
- spin_lock_irqsave(&up->port.lock, flags);
- ret = serial_in(up, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
- spin_unlock_irqrestore(&up->port.lock, flags);
-
- return ret;
-}
-
-static unsigned int serial8250_get_mctrl(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned char status;
- unsigned int ret;
-
- status = serial_in(up, UART_MSR);
-
- ret = 0;
- if (status & UART_MSR_DCD)
- ret |= TIOCM_CAR;
- if (status & UART_MSR_RI)
- ret |= TIOCM_RNG;
- if (status & UART_MSR_DSR)
- ret |= TIOCM_DSR;
- if (status & UART_MSR_CTS)
- ret |= TIOCM_CTS;
- return ret;
-}
-
-static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned char mcr = 0;
-
- if (mctrl & TIOCM_RTS)
- mcr |= UART_MCR_RTS;
- if (mctrl & TIOCM_DTR)
- mcr |= UART_MCR_DTR;
- if (mctrl & TIOCM_OUT1)
- mcr |= UART_MCR_OUT1;
- if (mctrl & TIOCM_OUT2)
- mcr |= UART_MCR_OUT2;
- if (mctrl & TIOCM_LOOP)
- mcr |= UART_MCR_LOOP;
-
- mcr = (mcr & up->mcr_mask) | up->mcr_force;
-
- serial_out(up, UART_MCR, mcr);
-}
-
-static void serial8250_break_ctl(struct uart_port *port, int break_state)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned long flags;
-
- spin_lock_irqsave(&up->port.lock, flags);
- if (break_state == -1)
- up->lcr |= UART_LCR_SBC;
- else
- up->lcr &= ~UART_LCR_SBC;
- serial_out(up, UART_LCR, up->lcr);
- spin_unlock_irqrestore(&up->port.lock, flags);
-}
-
-static int serial8250_startup(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned long flags;
- int retval;
-
- /*
- * Clear the FIFO buffers and disable them.
- * (they will be reeanbled in set_termios())
- */
- if (uart_config[up->port.type].flags & UART_CLEAR_FIFO) {
- serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO);
- serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO |
- UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
- serial_outp(up, UART_FCR, 0);
- }
-
- /*
- * Clear the interrupt registers.
- */
- (void) serial_inp(up, UART_LSR);
- (void) serial_inp(up, UART_RX);
- (void) serial_inp(up, UART_IIR);
- (void) serial_inp(up, UART_MSR);
-
- /*
- * At this point, there's no way the LSR could still be 0xff;
- * if it is, then bail out, because there's likely no UART
- * here.
- */
- if (!(up->port.flags & UPF_BUGGY_UART) &&
- (serial_inp(up, UART_LSR) == 0xff)) {
- printk("ttyS%d: LSR safety check engaged!\n", up->port.line);
- return -ENODEV;
- }
-
- retval = serial_link_irq_chain(up);
- if (retval)
- return retval;
-
- /*
- * Now, initialize the UART
- */
- serial_outp(up, UART_LCR, UART_LCR_WLEN8);
-
- spin_lock_irqsave(&up->port.lock, flags);
- if (up->port.flags & UPF_FOURPORT) {
- if (!is_real_interrupt(up->port.irq))
- up->port.mctrl |= TIOCM_OUT1;
- } else
- /*
- * Most PC uarts need OUT2 raised to enable interrupts.
- */
- if (is_real_interrupt(up->port.irq))
- up->port.mctrl |= TIOCM_OUT2;
-
- serial8250_set_mctrl(&up->port, up->port.mctrl);
- spin_unlock_irqrestore(&up->port.lock, flags);
-
- /*
- * Finally, enable interrupts. Note: Modem status interrupts
- * are set via set_termios(), which will be occurring imminently
- * anyway, so we don't enable them here.
- */
- up->ier = UART_IER_RLSI | UART_IER_RDI;
- serial_outp(up, UART_IER, up->ier);
-
- if (up->port.flags & UPF_FOURPORT) {
- unsigned int icp;
- /*
- * Enable interrupts on the AST Fourport board
- */
- icp = (up->port.iobase & 0xfe0) | 0x01f;
- outb_p(0x80, icp);
- (void) inb_p(icp);
- }
-
- /*
- * And clear the interrupt registers again for luck.
- */
- (void) serial_inp(up, UART_LSR);
- (void) serial_inp(up, UART_RX);
- (void) serial_inp(up, UART_IIR);
- (void) serial_inp(up, UART_MSR);
-
- return 0;
-}
-
-static void serial8250_shutdown(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned long flags;
-
- /*
- * Disable interrupts from this port
- */
- up->ier = 0;
- serial_outp(up, UART_IER, 0);
-
- spin_lock_irqsave(&up->port.lock, flags);
- if (up->port.flags & UPF_FOURPORT) {
- /* reset interrupts on the AST Fourport board */
- inb((up->port.iobase & 0xfe0) | 0x1f);
- up->port.mctrl |= TIOCM_OUT1;
- } else
- up->port.mctrl &= ~TIOCM_OUT2;
-
- serial8250_set_mctrl(&up->port, up->port.mctrl);
- spin_unlock_irqrestore(&up->port.lock, flags);
-
- /*
- * Disable break condition and FIFOs
- */
- serial_out(up, UART_LCR, serial_inp(up, UART_LCR) & ~UART_LCR_SBC);
- serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO |
- UART_FCR_CLEAR_RCVR |
- UART_FCR_CLEAR_XMIT);
- serial_outp(up, UART_FCR, 0);
-
- /*
- * Read data port to reset things, and then unlink from
- * the IRQ chain.
- */
- (void) serial_in(up, UART_RX);
-
- if (!is_real_interrupt(up->port.irq))
- del_timer_sync(&up->timer);
- else
- serial_unlink_irq_chain(up);
-}
-
-static unsigned int serial8250_get_divisor(struct uart_port *port, unsigned int baud)
-{
- unsigned int quot;
-
- /*
- * Handle magic divisors for baud rates above baud_base on
- * SMSC SuperIO chips.
- */
- if ((port->flags & UPF_MAGIC_MULTIPLIER) &&
- baud == (port->uartclk/4))
- quot = 0x8001;
- else if ((port->flags & UPF_MAGIC_MULTIPLIER) &&
- baud == (port->uartclk/8))
- quot = 0x8002;
- else
- quot = uart_get_divisor(port, baud);
-
- return quot;
-}
-
-static void
-serial8250_set_termios(struct uart_port *port, struct termios *termios,
- struct termios *old)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned char cval, fcr = 0;
- unsigned long flags;
- unsigned int baud, quot;
-
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- cval = UART_LCR_WLEN5;
- break;
- case CS6:
- cval = UART_LCR_WLEN6;
- break;
- case CS7:
- cval = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- cval = UART_LCR_WLEN8;
- break;
- }
-
- if (termios->c_cflag & CSTOPB)
- cval |= UART_LCR_STOP;
- if (termios->c_cflag & PARENB)
- cval |= UART_LCR_PARITY;
- if (!(termios->c_cflag & PARODD))
- cval |= UART_LCR_EPAR;
-#ifdef CMSPAR
- if (termios->c_cflag & CMSPAR)
- cval |= UART_LCR_SPAR;
-#endif
-
- /*
- * Ask the core to calculate the divisor for us.
- */
- baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
- quot = serial8250_get_divisor(port, baud);
- quot = 0x35; /* FIXME */
-
- /*
- * Work around a bug in the Oxford Semiconductor 952 rev B
- * chip which causes it to seriously miscalculate baud rates
- * when DLL is 0.
- */
- if ((quot & 0xff) == 0 && up->port.type == PORT_16C950 &&
- up->rev == 0x5201)
- quot ++;
-
- if (uart_config[up->port.type].flags & UART_USE_FIFO) {
- if (baud < 2400)
- fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIGGER_1;
- else
- fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIGGER_8;
- }
-
- /*
- * Ok, we're now changing the port state. Do it with
- * interrupts disabled.
- */
- spin_lock_irqsave(&up->port.lock, flags);
-
- /*
- * Update the per-port timeout.
- */
- uart_update_timeout(port, termios->c_cflag, baud);
-
- up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
- if (termios->c_iflag & INPCK)
- up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
- if (termios->c_iflag & (BRKINT | PARMRK))
- up->port.read_status_mask |= UART_LSR_BI;
-
- /*
- * Characteres to ignore
- */
- up->port.ignore_status_mask = 0;
- if (termios->c_iflag & IGNPAR)
- up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
- if (termios->c_iflag & IGNBRK) {
- up->port.ignore_status_mask |= UART_LSR_BI;
- /*
- * If we're ignoring parity and break indicators,
- * ignore overruns too (for real raw support).
- */
- if (termios->c_iflag & IGNPAR)
- up->port.ignore_status_mask |= UART_LSR_OE;
- }
-
- /*
- * ignore all characters if CREAD is not set
- */
- if ((termios->c_cflag & CREAD) == 0)
- up->port.ignore_status_mask |= UART_LSR_DR;
-
- /*
- * CTS flow control flag and modem status interrupts
- */
- up->ier &= ~UART_IER_MSI;
- if (UART_ENABLE_MS(&up->port, termios->c_cflag))
- up->ier |= UART_IER_MSI;
-
- serial_out(up, UART_IER, up->ier);
- serial_outp(up, 0x28, quot & 0xffff);
- up->lcr = cval; /* Save LCR */
- if (up->port.type != PORT_16750) {
- if (fcr & UART_FCR_ENABLE_FIFO) {
- /* emulated UARTs (Lucent Venus 167x) need two steps */
- serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO);
- }
- serial_outp(up, UART_FCR, fcr); /* set fcr */
- }
- spin_unlock_irqrestore(&up->port.lock, flags);
-}
-
-static void
-serial8250_pm(struct uart_port *port, unsigned int state,
- unsigned int oldstate)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- if (state) {
- /* sleep */
- if (up->pm)
- up->pm(port, state, oldstate);
- } else {
- /* wake */
- if (up->pm)
- up->pm(port, state, oldstate);
- }
-}
-
-/*
- * Resource handling. This is complicated by the fact that resources
- * depend on the port type. Maybe we should be claiming the standard
- * 8250 ports, and then trying to get other resources as necessary?
- */
-static int
-serial8250_request_std_resource(struct uart_8250_port *up, struct resource **res)
-{
- unsigned int size = 8 << up->port.regshift;
- int ret = 0;
-
- switch (up->port.iotype) {
- case UPIO_MEM:
- if (up->port.mapbase) {
- *res = request_mem_region(up->port.mapbase, size, "serial");
- if (!*res)
- ret = -EBUSY;
- }
- break;
-
- case UPIO_HUB6:
- case UPIO_PORT:
- *res = request_region(up->port.iobase, size, "serial");
- if (!*res)
- ret = -EBUSY;
- break;
- }
- return ret;
-}
-
-
-static void serial8250_release_port(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- unsigned long start, offset = 0, size = 0;
-
- size <<= up->port.regshift;
-
- switch (up->port.iotype) {
- case UPIO_MEM:
- if (up->port.mapbase) {
- /*
- * Unmap the area.
- */
- iounmap(up->port.membase);
- up->port.membase = NULL;
-
- start = up->port.mapbase;
-
- if (size)
- release_mem_region(start + offset, size);
- release_mem_region(start, 8 << up->port.regshift);
- }
- break;
-
- case UPIO_HUB6:
- case UPIO_PORT:
- start = up->port.iobase;
-
- if (size)
- release_region(start + offset, size);
- release_region(start + offset, 8 << up->port.regshift);
- break;
-
- default:
- break;
- }
-}
-
-static int serial8250_request_port(struct uart_port *port)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- struct resource *res = NULL, *res_rsa = NULL;
- int ret = 0;
-
- ret = serial8250_request_std_resource(up, &res);
-
- /*
- * If we have a mapbase, then request that as well.
- */
- if (ret == 0 && up->port.flags & UPF_IOREMAP) {
- int size = res->end - res->start + 1;
-
- up->port.membase = ioremap(up->port.mapbase, size);
- if (!up->port.membase)
- ret = -ENOMEM;
- }
-
- if (ret < 0) {
- if (res_rsa)
- release_resource(res_rsa);
- if (res)
- release_resource(res);
- }
- return ret;
-}
-
-static void serial8250_config_port(struct uart_port *port, int flags)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
- struct resource *res_std = NULL, *res_rsa = NULL;
- int probeflags = PROBE_ANY;
-
- probeflags &= ~PROBE_RSA;
-
- if (flags & UART_CONFIG_TYPE)
- autoconfig(up, probeflags);
-
- /*
- * If the port wasn't an RSA port, release the resource.
- */
- if (up->port.type != PORT_RSA && res_rsa)
- release_resource(res_rsa);
-
- if (up->port.type == PORT_UNKNOWN && res_std)
- release_resource(res_std);
-}
-
-static int
-serial8250_verify_port(struct uart_port *port, struct serial_struct *ser)
-{
- if (ser->irq >= NR_IRQS || ser->irq < 0 ||
- ser->baud_base < 9600 || ser->type < PORT_UNKNOWN ||
- ser->type > PORT_MAX_8250 || ser->type == PORT_CIRRUS ||
- ser->type == PORT_STARTECH)
- return -EINVAL;
- return 0;
-}
-
-static const char *
-serial8250_type(struct uart_port *port)
-{
- int type = port->type;
-
- if (type >= ARRAY_SIZE(uart_config))
- type = 0;
- return uart_config[type].name;
-}
-
-static struct uart_ops serial8250_pops = {
- .tx_empty = serial8250_tx_empty,
- .set_mctrl = serial8250_set_mctrl,
- .get_mctrl = serial8250_get_mctrl,
- .stop_tx = serial8250_stop_tx,
- .start_tx = serial8250_start_tx,
- .stop_rx = serial8250_stop_rx,
- .enable_ms = serial8250_enable_ms,
- .break_ctl = serial8250_break_ctl,
- .startup = serial8250_startup,
- .shutdown = serial8250_shutdown,
- .set_termios = serial8250_set_termios,
- .pm = serial8250_pm,
- .type = serial8250_type,
- .release_port = serial8250_release_port,
- .request_port = serial8250_request_port,
- .config_port = serial8250_config_port,
- .verify_port = serial8250_verify_port,
-};
-
-static struct uart_8250_port serial8250_ports[UART_NR];
-
-static void __init serial8250_isa_init_ports(void)
-{
- struct uart_8250_port *up;
- static int first = 1;
- int i;
-
- if (!first)
- return;
- first = 0;
-
- for (i = 0, up = serial8250_ports; i < ARRAY_SIZE(old_serial_port);
- i++, up++) {
- up->port.iobase = old_serial_port[i].port;
- up->port.irq = old_serial_port[i].irq;
- up->port.uartclk = get_au1x00_uart_baud_base();
- up->port.flags = old_serial_port[i].flags;
- up->port.hub6 = old_serial_port[i].hub6;
- up->port.membase = old_serial_port[i].iomem_base;
- up->port.iotype = old_serial_port[i].io_type;
- up->port.regshift = old_serial_port[i].iomem_reg_shift;
- up->port.ops = &serial8250_pops;
- }
-}
-
-static void __init serial8250_register_ports(struct uart_driver *drv)
-{
- int i;
-
- serial8250_isa_init_ports();
-
- for (i = 0; i < UART_NR; i++) {
- struct uart_8250_port *up = &serial8250_ports[i];
-
- up->port.line = i;
- up->port.ops = &serial8250_pops;
- init_timer(&up->timer);
- up->timer.function = serial8250_timeout;
-
- /*
- * ALPHA_KLUDGE_MCR needs to be killed.
- */
- up->mcr_mask = ~ALPHA_KLUDGE_MCR;
- up->mcr_force = ALPHA_KLUDGE_MCR;
-
- uart_add_one_port(drv, &up->port);
- }
-}
-
-#ifdef CONFIG_SERIAL_AU1X00_CONSOLE
-
-#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
-
-/*
- * Wait for transmitter & holding register to empty
- */
-static inline void wait_for_xmitr(struct uart_8250_port *up)
-{
- unsigned int status, tmout = 10000;
-
- /* Wait up to 10ms for the character(s) to be sent. */
- do {
- status = serial_in(up, UART_LSR);
-
- if (status & UART_LSR_BI)
- up->lsr_break_flag = UART_LSR_BI;
-
- if (--tmout == 0)
- break;
- udelay(1);
- } while ((status & BOTH_EMPTY) != BOTH_EMPTY);
-
- /* Wait up to 1s for flow control if necessary */
- if (up->port.flags & UPF_CONS_FLOW) {
- tmout = 1000000;
- while (--tmout &&
- ((serial_in(up, UART_MSR) & UART_MSR_CTS) == 0))
- udelay(1);
- }
-}
-
-static void au1x00_console_putchar(struct uart_port *port, int ch)
-{
- struct uart_8250_port *up = (struct uart_8250_port *)port;
-
- wait_for_xmitr(up);
- serial_out(up, UART_TX, ch);
-}
-
-/*
- * Print a string to the serial port trying not to disturb
- * any possible real use of the port...
- *
- * The console_lock must be held when we get here.
- */
-static void
-serial8250_console_write(struct console *co, const char *s, unsigned int count)
-{
- struct uart_8250_port *up = &serial8250_ports[co->index];
- unsigned int ier;
-
- /*
- * First save the UER then disable the interrupts
- */
- ier = serial_in(up, UART_IER);
- serial_out(up, UART_IER, 0);
-
- uart_console_write(&up->port, s, count, au1x00_console_putchar);
-
- /*
- * Finally, wait for transmitter to become empty
- * and restore the IER
- */
- wait_for_xmitr(up);
- serial_out(up, UART_IER, ier);
-}
-
-static int __init serial8250_console_setup(struct console *co, char *options)
-{
- struct uart_port *port;
- int baud = 9600;
- int bits = 8;
- int parity = 'n';
- int flow = 'n';
-
- /*
- * Check whether an invalid uart number has been specified, and
- * if so, search for the first available port that does have
- * console support.
- */
- if (co->index >= UART_NR)
- co->index = 0;
- port = &serial8250_ports[co->index].port;
-
- /*
- * Temporary fix.
- */
- spin_lock_init(&port->lock);
-
- if (options)
- uart_parse_options(options, &baud, &parity, &bits, &flow);
-
- return uart_set_options(port, co, baud, parity, bits, flow);
-}
-
-extern struct uart_driver serial8250_reg;
-static struct console serial8250_console = {
- .name = "ttyS",
- .write = serial8250_console_write,
- .device = uart_console_device,
- .setup = serial8250_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
- .data = &serial8250_reg,
-};
-
-static int __init serial8250_console_init(void)
-{
- serial8250_isa_init_ports();
- register_console(&serial8250_console);
- return 0;
-}
-console_initcall(serial8250_console_init);
-
-#define SERIAL8250_CONSOLE &serial8250_console
-#else
-#define SERIAL8250_CONSOLE NULL
-#endif
-
-static struct uart_driver serial8250_reg = {
- .owner = THIS_MODULE,
- .driver_name = "serial",
- .devfs_name = "tts/",
- .dev_name = "ttyS",
- .major = TTY_MAJOR,
- .minor = 64,
- .nr = UART_NR,
- .cons = SERIAL8250_CONSOLE,
-};
-
-int __init early_serial_setup(struct uart_port *port)
-{
- serial8250_isa_init_ports();
- serial8250_ports[port->line].port = *port;
- serial8250_ports[port->line].port.ops = &serial8250_pops;
- return 0;
-}
-
-/**
- * serial8250_suspend_port - suspend one serial port
- * @line: serial line number
- * @level: the level of port suspension, as per uart_suspend_port
- *
- * Suspend one serial port.
- */
-void serial8250_suspend_port(int line)
-{
- uart_suspend_port(&serial8250_reg, &serial8250_ports[line].port);
-}
-
-/**
- * serial8250_resume_port - resume one serial port
- * @line: serial line number
- * @level: the level of port resumption, as per uart_resume_port
- *
- * Resume one serial port.
- */
-void serial8250_resume_port(int line)
-{
- uart_resume_port(&serial8250_reg, &serial8250_ports[line].port);
-}
-
-static int __init serial8250_init(void)
-{
- int ret, i;
-
- printk(KERN_INFO "Serial: Au1x00 driver\n");
-
- for (i = 0; i < NR_IRQS; i++)
- spin_lock_init(&irq_lists[i].lock);
-
- ret = uart_register_driver(&serial8250_reg);
- if (ret >= 0)
- serial8250_register_ports(&serial8250_reg);
-
- return ret;
-}
-
-static void __exit serial8250_exit(void)
-{
- int i;
-
- for (i = 0; i < UART_NR; i++)
- uart_remove_one_port(&serial8250_reg, &serial8250_ports[i].port);
-
- uart_unregister_driver(&serial8250_reg);
-}
-
-module_init(serial8250_init);
-module_exit(serial8250_exit);
-
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Au1x00 serial driver\n");
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c
index b848b7d9441..3bdee64d1a9 100644
--- a/drivers/serial/serial_txx9.c
+++ b/drivers/serial/serial_txx9.c
@@ -483,7 +483,7 @@ static int serial_txx9_startup(struct uart_port *port)
/*
* Clear the FIFO buffers and disable them.
- * (they will be reeanbled in set_termios())
+ * (they will be reenabled in set_termios())
*/
sio_set(up, TXX9_SIFCR,
TXX9_SIFCR_TFRST | TXX9_SIFCR_RFRST | TXX9_SIFCR_FRSTE);
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 9fe2283d91e..1c4396c2962 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -641,7 +641,7 @@ static int sunsu_startup(struct uart_port *port)
/*
* Clear the FIFO buffers and disable them.
- * (they will be reeanbled in set_termios())
+ * (they will be reenabled in set_termios())
*/
if (uart_config[up->port.type].flags & UART_CLEAR_FIFO) {
serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO);
diff --git a/drivers/telephony/phonedev.c b/drivers/telephony/phonedev.c
index 7a6db1c5c8c..e166fffea86 100644
--- a/drivers/telephony/phonedev.c
+++ b/drivers/telephony/phonedev.c
@@ -49,7 +49,7 @@ static int phone_open(struct inode *inode, struct file *file)
unsigned int minor = iminor(inode);
int err = 0;
struct phone_device *p;
- struct file_operations *old_fops, *new_fops = NULL;
+ const struct file_operations *old_fops, *new_fops = NULL;
if (minor >= PHONE_NUM_DEVICES)
return -ENODEV;
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 37b13368c81..b263a54a13c 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -24,15 +24,15 @@
#include "usb.h"
#define MAX_USB_MINORS 256
-static struct file_operations *usb_minors[MAX_USB_MINORS];
+static const struct file_operations *usb_minors[MAX_USB_MINORS];
static DEFINE_SPINLOCK(minor_lock);
static int usb_open(struct inode * inode, struct file * file)
{
int minor = iminor(inode);
- struct file_operations *c;
+ const struct file_operations *c;
int err = -ENODEV;
- struct file_operations *old_fops, *new_fops = NULL;
+ const struct file_operations *old_fops, *new_fops = NULL;
spin_lock (&minor_lock);
c = usb_minors[minor];
diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index 4b55285de9a..fe0ed54fa0a 100644
--- a/drivers/usb/core/notify.c
+++ b/drivers/usb/core/notify.c
@@ -16,57 +16,7 @@
#include <linux/mutex.h>
#include "usb.h"
-
-static struct notifier_block *usb_notifier_list;
-static DEFINE_MUTEX(usb_notifier_lock);
-
-static void usb_notifier_chain_register(struct notifier_block **list,
- struct notifier_block *n)
-{
- mutex_lock(&usb_notifier_lock);
- while (*list) {
- if (n->priority > (*list)->priority)
- break;
- list = &((*list)->next);
- }
- n->next = *list;
- *list = n;
- mutex_unlock(&usb_notifier_lock);
-}
-
-static void usb_notifier_chain_unregister(struct notifier_block **nl,
- struct notifier_block *n)
-{
- mutex_lock(&usb_notifier_lock);
- while ((*nl)!=NULL) {
- if ((*nl)==n) {
- *nl = n->next;
- goto exit;
- }
- nl=&((*nl)->next);
- }
-exit:
- mutex_unlock(&usb_notifier_lock);
-}
-
-static int usb_notifier_call_chain(struct notifier_block **n,
- unsigned long val, void *v)
-{
- int ret=NOTIFY_DONE;
- struct notifier_block *nb = *n;
-
- mutex_lock(&usb_notifier_lock);
- while (nb) {
- ret = nb->notifier_call(nb,val,v);
- if (ret&NOTIFY_STOP_MASK) {
- goto exit;
- }
- nb = nb->next;
- }
-exit:
- mutex_unlock(&usb_notifier_lock);
- return ret;
-}
+static BLOCKING_NOTIFIER_HEAD(usb_notifier_list);
/**
* usb_register_notify - register a notifier callback whenever a usb change happens
@@ -76,7 +26,7 @@ exit:
*/
void usb_register_notify(struct notifier_block *nb)
{
- usb_notifier_chain_register(&usb_notifier_list, nb);
+ blocking_notifier_chain_register(&usb_notifier_list, nb);
}
EXPORT_SYMBOL_GPL(usb_register_notify);
@@ -89,27 +39,28 @@ EXPORT_SYMBOL_GPL(usb_register_notify);
*/
void usb_unregister_notify(struct notifier_block *nb)
{
- usb_notifier_chain_unregister(&usb_notifier_list, nb);
+ blocking_notifier_chain_unregister(&usb_notifier_list, nb);
}
EXPORT_SYMBOL_GPL(usb_unregister_notify);
void usb_notify_add_device(struct usb_device *udev)
{
- usb_notifier_call_chain(&usb_notifier_list, USB_DEVICE_ADD, udev);
+ blocking_notifier_call_chain(&usb_notifier_list, USB_DEVICE_ADD, udev);
}
void usb_notify_remove_device(struct usb_device *udev)
{
- usb_notifier_call_chain(&usb_notifier_list, USB_DEVICE_REMOVE, udev);
+ blocking_notifier_call_chain(&usb_notifier_list,
+ USB_DEVICE_REMOVE, udev);
}
void usb_notify_add_bus(struct usb_bus *ubus)
{
- usb_notifier_call_chain(&usb_notifier_list, USB_BUS_ADD, ubus);
+ blocking_notifier_call_chain(&usb_notifier_list, USB_BUS_ADD, ubus);
}
void usb_notify_remove_bus(struct usb_bus *ubus)
{
- usb_notifier_call_chain(&usb_notifier_list, USB_BUS_REMOVE, ubus);
+ blocking_notifier_call_chain(&usb_notifier_list, USB_BUS_REMOVE, ubus);
}
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index b44cfda76b6..3f618ce6998 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1581,7 +1581,7 @@ restart:
static struct inode *
gadgetfs_create_file (struct super_block *sb, char const *name,
- void *data, struct file_operations *fops,
+ void *data, const struct file_operations *fops,
struct dentry **dentry_p);
static int activate_ep_files (struct dev_data *dev)
@@ -1955,7 +1955,7 @@ module_param (default_perm, uint, 0644);
static struct inode *
gadgetfs_make_inode (struct super_block *sb,
- void *data, struct file_operations *fops,
+ void *data, const struct file_operations *fops,
int mode)
{
struct inode *inode = new_inode (sb);
@@ -1979,7 +1979,7 @@ gadgetfs_make_inode (struct super_block *sb,
*/
static struct inode *
gadgetfs_create_file (struct super_block *sb, char const *name,
- void *data, struct file_operations *fops,
+ void *data, const struct file_operations *fops,
struct dentry **dentry_p)
{
struct dentry *dentry;
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 372527a8359..682bf221566 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -158,7 +158,7 @@ static int ohci_s3c2410_hub_control (
"s3c2410_hub_control(%p,0x%04x,0x%04x,0x%04x,%p,%04x)\n",
hcd, typeReq, wValue, wIndex, buf, wLength);
- /* if we are only an humble host without any special capabilites
+ /* if we are only an humble host without any special capabilities
* process the request straight away and exit */
if (info == NULL) {
diff --git a/drivers/usb/net/zaurus.c b/drivers/usb/net/zaurus.c
index 9c5ab251370..f7ac9d6b985 100644
--- a/drivers/usb/net/zaurus.c
+++ b/drivers/usb/net/zaurus.c
@@ -217,7 +217,7 @@ static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf)
* with devices that use it and those that don't.
*/
if ((detail->bDetailData[1] & ~0x02) != 0x01) {
- /* bmDataCapabilites == 0 would be fine too,
+ /* bmDataCapabilities == 0 would be fine too,
* but framing is minidriver-coupled for now.
*/
bad_detail:
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index fdebd60a325..22e9d696fdd 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -70,6 +70,22 @@ config FB_MACMODES
depends on FB
default n
+config FB_FIRMWARE_EDID
+ bool "Enable firmware EDID"
+ depends on FB
+ default y
+ ---help---
+ This enables access to the EDID transferred from the firmware.
+ On the i386, this is from the Video BIOS. Enable this if DDC/I2C
+ transfers do not work for your driver and if you are using
+ nvidiafb, i810fb or savagefb.
+
+ In general, choosing Y for this option is safe. If you
+ experience extremely long delays while booting before you get
+ something on your display, try setting this to N. Matrox cards in
+ combination with certain motherboards and monitors are known to
+ suffer from this problem.
+
config FB_MODE_HELPERS
bool "Enable Video Mode Handling Helpers"
depends on FB
@@ -1202,6 +1218,17 @@ config FB_AU1100
bool "Au1100 LCD Driver"
depends on (FB = y) && EXPERIMENTAL && PCI && MIPS && MIPS_PB1100=y
+config FB_AU1200
+ bool "Au1200 LCD Driver"
+ depends on FB && MIPS && SOC_AU1200
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ This is the framebuffer driver for the AMD Au1200 SOC. It can drive
+ various panels and CRTs by passing in kernel cmd line option
+ au1200fb:panel=<name>.
+
source "drivers/video/geode/Kconfig"
config FB_FFB
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index aa434e725c0..cb90218515a 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -86,6 +86,7 @@ obj-$(CONFIG_FB_ASILIANT) += asiliantfb.o
obj-$(CONFIG_FB_PXA) += pxafb.o
obj-$(CONFIG_FB_W100) += w100fb.o
obj-$(CONFIG_FB_AU1100) += au1100fb.o
+obj-$(CONFIG_FB_AU1200) += au1200fb.o
obj-$(CONFIG_FB_PMAG_AA) += pmag-aa-fb.o
obj-$(CONFIG_FB_PMAG_BA) += pmag-ba-fb.o
obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o
diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 76448d6ae89..98baecccb3f 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -1308,7 +1308,7 @@ static int __init acornfb_probe(struct platform_device *dev)
/*
* Try to select a suitable default mode
*/
- for (i = 0; i < sizeof(modedb) / sizeof(*modedb); i++) {
+ for (i = 0; i < ARRAY_SIZE(modedb); i++) {
unsigned long hs;
hs = modedb[i].refresh *
@@ -1380,7 +1380,7 @@ static int __init acornfb_probe(struct platform_device *dev)
*/
free_unused_pages(PAGE_OFFSET + size, PAGE_OFFSET + MAX_SIZE);
#endif
-
+
fb_info.fix.smem_len = size;
current_par.palette_size = VIDC_PALETTE_SIZE;
@@ -1391,7 +1391,7 @@ static int __init acornfb_probe(struct platform_device *dev)
*/
do {
rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb,
- sizeof(modedb) / sizeof(*modedb),
+ ARRAY_SIZE(modedb),
&acornfb_default_mode, DEFAULT_BPP);
/*
* If we found an exact match, all ok.
@@ -1408,7 +1408,7 @@ static int __init acornfb_probe(struct platform_device *dev)
break;
rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb,
- sizeof(modedb) / sizeof(*modedb),
+ ARRAY_SIZE(modedb),
&acornfb_default_mode, DEFAULT_BPP);
if (rc)
break;
diff --git a/drivers/video/asiliantfb.c b/drivers/video/asiliantfb.c
index c924d81f797..29f9f0dfe3b 100644
--- a/drivers/video/asiliantfb.c
+++ b/drivers/video/asiliantfb.c
@@ -353,8 +353,6 @@ struct chips_init_reg {
unsigned char data;
};
-#define N_ELTS(x) (sizeof(x) / sizeof(x[0]))
-
static struct chips_init_reg chips_init_sr[] =
{
{0x00, 0x03}, /* Reset register */
@@ -460,22 +458,22 @@ static void __devinit chips_hw_init(struct fb_info *p)
{
int i;
- for (i = 0; i < N_ELTS(chips_init_xr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_xr); ++i)
write_xr(chips_init_xr[i].addr, chips_init_xr[i].data);
write_xr(0x81, 0x12);
write_xr(0x82, 0x08);
write_xr(0x20, 0x00);
- for (i = 0; i < N_ELTS(chips_init_sr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_sr); ++i)
write_sr(chips_init_sr[i].addr, chips_init_sr[i].data);
- for (i = 0; i < N_ELTS(chips_init_gr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_gr); ++i)
write_gr(chips_init_gr[i].addr, chips_init_gr[i].data);
- for (i = 0; i < N_ELTS(chips_init_ar); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_ar); ++i)
write_ar(chips_init_ar[i].addr, chips_init_ar[i].data);
/* Enable video output in attribute index register */
writeb(0x20, mmio_base + 0x780);
- for (i = 0; i < N_ELTS(chips_init_cr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_cr); ++i)
write_cr(chips_init_cr[i].addr, chips_init_cr[i].data);
- for (i = 0; i < N_ELTS(chips_init_fr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_fr); ++i)
write_fr(chips_init_fr[i].addr, chips_init_fr[i].data);
}
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 620c9a934e0..821c6da8e42 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1725,9 +1725,9 @@ static int __init aty128_init(struct pci_dev *pdev, const struct pci_device_id *
strcpy(video_card, "Rage128 XX ");
video_card[8] = ent->device >> 8;
video_card[9] = ent->device & 0xFF;
-
+
/* range check to make sure */
- if (ent->driver_data < (sizeof(r128_family)/sizeof(char *)))
+ if (ent->driver_data < ARRAY_SIZE(r128_family))
strncat(video_card, r128_family[ent->driver_data], sizeof(video_card));
printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev);
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 485be386a8f..e799fcca365 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -434,7 +434,7 @@ static int __devinit correct_chipset(struct atyfb_par *par)
const char *name;
int i;
- for (i = sizeof(aty_chips) / sizeof(*aty_chips) - 1; i >= 0; i--)
+ for (i = ARRAY_SIZE(aty_chips) - 1; i >= 0; i--)
if (par->pci_id == aty_chips[i].pci_id)
break;
@@ -2168,10 +2168,10 @@ static void __init aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
if (IS_XL(par->pci_id) || IS_MOBILITY(par->pci_id)) {
refresh_tbl = ragexl_tbl;
- size = sizeof(ragexl_tbl)/sizeof(int);
+ size = ARRAY_SIZE(ragexl_tbl);
} else {
refresh_tbl = ragepro_tbl;
- size = sizeof(ragepro_tbl)/sizeof(int);
+ size = ARRAY_SIZE(ragepro_tbl);
}
for (i=0; i < size; i++) {
@@ -2298,6 +2298,10 @@ static int __init aty_init(struct fb_info *info, const char *name)
case CLK_ATI18818_1:
par->pll_ops = &aty_pll_ati18818_1;
break;
+ case CLK_IBMRGB514:
+ par->pll_ops = &aty_pll_ibm514;
+ break;
+#if 0 /* dead code */
case CLK_STG1703:
par->pll_ops = &aty_pll_stg1703;
break;
@@ -2307,9 +2311,7 @@ static int __init aty_init(struct fb_info *info, const char *name)
case CLK_ATT20C408:
par->pll_ops = &aty_pll_att20c408;
break;
- case CLK_IBMRGB514:
- par->pll_ops = &aty_pll_ibm514;
- break;
+#endif
default:
PRINTKI("aty_init: CLK type not implemented yet!");
par->pll_ops = &aty_pll_unsupported;
@@ -3397,7 +3399,7 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi
struct atyfb_par *par;
int i, rc = -ENOMEM;
- for (i = sizeof(aty_chips) / sizeof(*aty_chips) - 1; i >= 0; i--)
+ for (i = ARRAY_SIZE(aty_chips); i >= 0; i--)
if (pdev->device == aty_chips[i].pci_id)
break;
diff --git a/drivers/video/aty/mach64_gx.c b/drivers/video/aty/mach64_gx.c
index 01fdff79483..2045639cb67 100644
--- a/drivers/video/aty/mach64_gx.c
+++ b/drivers/video/aty/mach64_gx.c
@@ -149,8 +149,7 @@ static int aty_var_to_pll_514(const struct fb_info *info, u32 vclk_per,
};
int i;
- for (i = 0; i < sizeof(RGB514_clocks) / sizeof(*RGB514_clocks);
- i++)
+ for (i = 0; i < ARRAY_SIZE(RGB514_clocks); i++)
if (vclk_per <= RGB514_clocks[i].limit) {
pll->ibm514.m = RGB514_clocks[i].m;
pll->ibm514.n = RGB514_clocks[i].n;
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index c9f0c5a07e6..9a6b5b39b88 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -1067,7 +1067,7 @@ static int radeon_setcolreg (unsigned regno, unsigned red, unsigned green,
if (regno > 255)
- return 1;
+ return -EINVAL;
red >>= 8;
green >>= 8;
@@ -1086,9 +1086,9 @@ static int radeon_setcolreg (unsigned regno, unsigned red, unsigned green,
pindex = regno * 8;
if (rinfo->depth == 16 && regno > 63)
- return 1;
+ return -EINVAL;
if (rinfo->depth == 15 && regno > 31)
- return 1;
+ return -EINVAL;
/* For 565, the green component is mixed one order
* below
diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c
new file mode 100644
index 00000000000..b367de30b98
--- /dev/null
+++ b/drivers/video/au1200fb.c
@@ -0,0 +1,3844 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Au1200 LCD Driver.
+ *
+ * Copyright 2004-2005 AMD
+ * Author: AMD
+ *
+ * Based on:
+ * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device
+ * Created 28 Dec 1997 by Geert Uytterhoeven
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ctype.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include "au1200fb.h"
+
+#ifdef CONFIG_PM
+#include <asm/mach-au1x00/au1xxx_pm.h>
+#endif
+
+#ifndef CONFIG_FB_AU1200_DEVS
+#define CONFIG_FB_AU1200_DEVS 4
+#endif
+
+#define DRIVER_NAME "au1200fb"
+#define DRIVER_DESC "LCD controller driver for AU1200 processors"
+
+#define DEBUG 1
+
+#define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
+#define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
+#define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
+
+#if DEBUG
+#define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
+#else
+#define print_dbg(f, arg...) do {} while (0)
+#endif
+
+
+#define AU1200_LCD_FB_IOCTL 0x46FF
+
+#define AU1200_LCD_SET_SCREEN 1
+#define AU1200_LCD_GET_SCREEN 2
+#define AU1200_LCD_SET_WINDOW 3
+#define AU1200_LCD_GET_WINDOW 4
+#define AU1200_LCD_SET_PANEL 5
+#define AU1200_LCD_GET_PANEL 6
+
+#define SCREEN_SIZE (1<< 1)
+#define SCREEN_BACKCOLOR (1<< 2)
+#define SCREEN_BRIGHTNESS (1<< 3)
+#define SCREEN_COLORKEY (1<< 4)
+#define SCREEN_MASK (1<< 5)
+
+struct au1200_lcd_global_regs_t {
+ unsigned int flags;
+ unsigned int xsize;
+ unsigned int ysize;
+ unsigned int backcolor;
+ unsigned int brightness;
+ unsigned int colorkey;
+ unsigned int mask;
+ unsigned int panel_choice;
+ char panel_desc[80];
+
+};
+
+#define WIN_POSITION (1<< 0)
+#define WIN_ALPHA_COLOR (1<< 1)
+#define WIN_ALPHA_MODE (1<< 2)
+#define WIN_PRIORITY (1<< 3)
+#define WIN_CHANNEL (1<< 4)
+#define WIN_BUFFER_FORMAT (1<< 5)
+#define WIN_COLOR_ORDER (1<< 6)
+#define WIN_PIXEL_ORDER (1<< 7)
+#define WIN_SIZE (1<< 8)
+#define WIN_COLORKEY_MODE (1<< 9)
+#define WIN_DOUBLE_BUFFER_MODE (1<< 10)
+#define WIN_RAM_ARRAY_MODE (1<< 11)
+#define WIN_BUFFER_SCALE (1<< 12)
+#define WIN_ENABLE (1<< 13)
+
+struct au1200_lcd_window_regs_t {
+ unsigned int flags;
+ unsigned int xpos;
+ unsigned int ypos;
+ unsigned int alpha_color;
+ unsigned int alpha_mode;
+ unsigned int priority;
+ unsigned int channel;
+ unsigned int buffer_format;
+ unsigned int color_order;
+ unsigned int pixel_order;
+ unsigned int xsize;
+ unsigned int ysize;
+ unsigned int colorkey_mode;
+ unsigned int double_buffer_mode;
+ unsigned int ram_array_mode;
+ unsigned int xscale;
+ unsigned int yscale;
+ unsigned int enable;
+};
+
+
+struct au1200_lcd_iodata_t {
+ unsigned int subcmd;
+ struct au1200_lcd_global_regs_t global;
+ struct au1200_lcd_window_regs_t window;
+};
+
+#if defined(__BIG_ENDIAN)
+#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
+#else
+#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
+#endif
+#define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
+
+/* Private, per-framebuffer management information (independent of the panel itself) */
+struct au1200fb_device {
+ struct fb_info fb_info; /* FB driver info record */
+
+ int plane;
+ unsigned char* fb_mem; /* FrameBuffer memory map */
+ unsigned int fb_len;
+ dma_addr_t fb_phys;
+};
+
+static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS];
+/********************************************************************/
+
+/* LCD controller restrictions */
+#define AU1200_LCD_MAX_XRES 1280
+#define AU1200_LCD_MAX_YRES 1024
+#define AU1200_LCD_MAX_BPP 32
+#define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */
+#define AU1200_LCD_NBR_PALETTE_ENTRIES 256
+
+/* Default number of visible screen buffer to allocate */
+#define AU1200FB_NBR_VIDEO_BUFFERS 1
+
+/********************************************************************/
+
+static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
+static int window_index = 2; /* default is zero */
+static int panel_index = 2; /* default is zero */
+static struct window_settings *win;
+static struct panel_settings *panel;
+static int noblanking = 1;
+static int nohwcursor = 0;
+
+struct window_settings {
+ unsigned char name[64];
+ uint32 mode_backcolor;
+ uint32 mode_colorkey;
+ uint32 mode_colorkeymsk;
+ struct {
+ int xres;
+ int yres;
+ int xpos;
+ int ypos;
+ uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
+ uint32 mode_winenable;
+ } w[4];
+};
+
+#if defined(__BIG_ENDIAN)
+#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
+#else
+#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
+#endif
+
+extern int board_au1200fb_panel_init (void);
+extern int board_au1200fb_panel_shutdown (void);
+
+#ifdef CONFIG_PM
+int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
+ au1xxx_request_t request, void *data);
+au1xxx_power_dev_t *LCD_pm_dev;
+#endif
+
+/*
+ * Default window configurations
+ */
+static struct window_settings windows[] = {
+ { /* Index 0 */
+ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
+ /* mode_backcolor */ 0x006600ff,
+ /* mode_colorkey,msk*/ 0, 0,
+ {
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ LCD_WINENABLE_WEN0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ LCD_WINENABLE_WEN1,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ 0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0,
+ },
+ },
+ },
+
+ { /* Index 1 */
+ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
+ /* mode_backcolor */ 0x006600ff,
+ /* mode_colorkey,msk*/ 0, 0,
+ {
+ {
+ /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
+ LCD_WINCTRL1_PO_00,
+ /* mode_winenable*/ LCD_WINENABLE_WEN0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
+ | LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ 0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0,
+ },
+ },
+ },
+ { /* Index 2 */
+ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
+ /* mode_backcolor */ 0x006600ff,
+ /* mode_colorkey,msk*/ 0, 0,
+ {
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ LCD_WINENABLE_WEN0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ 0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
+ LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0,
+ },
+ },
+ },
+ /* Need VGA 640 @ 24bpp, @ 32bpp */
+ /* Need VGA 800 @ 24bpp, @ 32bpp */
+ /* Need VGA 1024 @ 24bpp, @ 32bpp */
+};
+
+/*
+ * Controller configurations for various panels.
+ */
+
+struct panel_settings
+{
+ const char name[25]; /* Full name <vendor>_<model> */
+
+ struct fb_monspecs monspecs; /* FB monitor specs */
+
+ /* panel timings */
+ uint32 mode_screen;
+ uint32 mode_horztiming;
+ uint32 mode_verttiming;
+ uint32 mode_clkcontrol;
+ uint32 mode_pwmdiv;
+ uint32 mode_pwmhi;
+ uint32 mode_outmask;
+ uint32 mode_fifoctrl;
+ uint32 mode_toyclksrc;
+ uint32 mode_backlight;
+ uint32 mode_auxpll;
+ int (*device_init)(void);
+ int (*device_shutdown)(void);
+#define Xres min_xres
+#define Yres min_yres
+ u32 min_xres; /* Minimum horizontal resolution */
+ u32 max_xres; /* Maximum horizontal resolution */
+ u32 min_yres; /* Minimum vertical resolution */
+ u32 max_yres; /* Maximum vertical resolution */
+};
+
+/********************************************************************/
+/* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
+
+/* List of panels known to work with the AU1200 LCD controller.
+ * To add a new panel, enter the same specifications as the
+ * Generic_TFT one, and MAKE SURE that it doesn't conflicts
+ * with the controller restrictions. Restrictions are:
+ *
+ * STN color panels: max_bpp <= 12
+ * STN mono panels: max_bpp <= 4
+ * TFT panels: max_bpp <= 16
+ * max_xres <= 800
+ * max_yres <= 600
+ */
+static struct panel_settings known_lcd_panels[] =
+{
+ [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
+ .name = "QVGA_320x240",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(320) |
+ LCD_SCREEN_SY_N(240),
+ .mode_horztiming = 0x00c4623b,
+ .mode_verttiming = 0x00502814,
+ .mode_clkcontrol = 0x00020002, /* /4=24Mhz */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 320, 320,
+ 240, 240,
+ },
+
+ [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
+ .name = "VGA_640x480",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x13f9df80,
+ .mode_horztiming = 0x003c5859,
+ .mode_verttiming = 0x00741201,
+ .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 640, 480,
+ 640, 480,
+ },
+
+ [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
+ .name = "SVGA_800x600",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x18fa5780,
+ .mode_horztiming = 0x00dc7e77,
+ .mode_verttiming = 0x00584805,
+ .mode_clkcontrol = 0x00020000, /* /2=48Mhz */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 800, 800,
+ 600, 600,
+ },
+
+ [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
+ .name = "XVGA_1024x768",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x1ffaff80,
+ .mode_horztiming = 0x007d0e57,
+ .mode_verttiming = 0x00740a01,
+ .mode_clkcontrol = 0x000A0000, /* /1 */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 6, /* 72MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 1024, 1024,
+ 768, 768,
+ },
+
+ [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
+ .name = "XVGA_1280x1024",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x27fbff80,
+ .mode_horztiming = 0x00cdb2c7,
+ .mode_verttiming = 0x00600002,
+ .mode_clkcontrol = 0x000A0000, /* /1 */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 10, /* 120MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 1280, 1280,
+ 1024, 1024,
+ },
+
+ [5] = { /* Samsung 1024x768 TFT */
+ .name = "Samsung_1024x768_TFT",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x1ffaff80,
+ .mode_horztiming = 0x018cc677,
+ .mode_verttiming = 0x00241217,
+ .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */
+ .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */
+ .mode_pwmhi = 0x03400000, /* SCB 0x0 */
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 1024, 1024,
+ 768, 768,
+ },
+
+ [6] = { /* Toshiba 640x480 TFT */
+ .name = "Toshiba_640x480_TFT",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(640) |
+ LCD_SCREEN_SY_N(480),
+ .mode_horztiming = LCD_HORZTIMING_HPW_N(96) |
+ LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
+ .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
+ LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
+ .mode_clkcontrol = 0x00000000, /* /4=24Mhz */
+ .mode_pwmdiv = 0x8000063f,
+ .mode_pwmhi = 0x03400000,
+ .mode_outmask = 0x00fcfcfc,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 640, 480,
+ 640, 480,
+ },
+
+ [7] = { /* Sharp 320x240 TFT */
+ .name = "Sharp_320x240_TFT",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 12500,
+ .hfmax = 20000,
+ .vfmin = 38,
+ .vfmax = 81,
+ .dclkmin = 4500000,
+ .dclkmax = 6800000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(320) |
+ LCD_SCREEN_SY_N(240),
+ .mode_horztiming = LCD_HORZTIMING_HPW_N(60) |
+ LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
+ .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
+ LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
+ .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
+ .mode_pwmdiv = 0x8000063f,
+ .mode_pwmhi = 0x03400000,
+ .mode_outmask = 0x00fcfcfc,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 320, 320,
+ 240, 240,
+ },
+
+ [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
+ .name = "Toppoly_TD070WGCB2",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(856) |
+ LCD_SCREEN_SY_N(480),
+ .mode_horztiming = LCD_HORZTIMING_HND2_N(43) |
+ LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
+ .mode_verttiming = LCD_VERTTIMING_VND2_N(20) |
+ LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
+ .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
+ .mode_pwmdiv = 0x8000063f,
+ .mode_pwmhi = 0x03400000,
+ .mode_outmask = 0x00fcfcfc,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 856, 856,
+ 480, 480,
+ },
+};
+
+#define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
+
+/********************************************************************/
+
+#ifdef CONFIG_PM
+static int set_brightness(unsigned int brightness)
+{
+ unsigned int hi1, divider;
+
+ /* limit brightness pwm duty to >= 30/1600 */
+ if (brightness < 30) {
+ brightness = 30;
+ }
+ divider = (lcd->pwmdiv & 0x3FFFF) + 1;
+ hi1 = (lcd->pwmhi >> 16) + 1;
+ hi1 = (((brightness & 0xFF) + 1) * divider >> 8);
+ lcd->pwmhi &= 0xFFFF;
+ lcd->pwmhi |= (hi1 << 16);
+
+ return brightness;
+}
+#endif /* CONFIG_PM */
+
+static int winbpp (unsigned int winctrl1)
+{
+ int bits = 0;
+
+ /* how many bits are needed for each pixel format */
+ switch (winctrl1 & LCD_WINCTRL1_FRM) {
+ case LCD_WINCTRL1_FRM_1BPP:
+ bits = 1;
+ break;
+ case LCD_WINCTRL1_FRM_2BPP:
+ bits = 2;
+ break;
+ case LCD_WINCTRL1_FRM_4BPP:
+ bits = 4;
+ break;
+ case LCD_WINCTRL1_FRM_8BPP:
+ bits = 8;
+ break;
+ case LCD_WINCTRL1_FRM_12BPP:
+ case LCD_WINCTRL1_FRM_16BPP655:
+ case LCD_WINCTRL1_FRM_16BPP565:
+ case LCD_WINCTRL1_FRM_16BPP556:
+ case LCD_WINCTRL1_FRM_16BPPI1555:
+ case LCD_WINCTRL1_FRM_16BPPI5551:
+ case LCD_WINCTRL1_FRM_16BPPA1555:
+ case LCD_WINCTRL1_FRM_16BPPA5551:
+ bits = 16;
+ break;
+ case LCD_WINCTRL1_FRM_24BPP:
+ case LCD_WINCTRL1_FRM_32BPP:
+ bits = 32;
+ break;
+ }
+
+ return bits;
+}
+
+static int fbinfo2index (struct fb_info *fb_info)
+{
+ int i;
+
+ for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) {
+ if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info))
+ return i;
+ }
+ printk("au1200fb: ERROR: fbinfo2index failed!\n");
+ return -1;
+}
+
+static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
+ int xpos, int ypos)
+{
+ uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
+ int xsz, ysz;
+
+ /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
+
+ winctrl0 = lcd->window[plane].winctrl0;
+ winctrl1 = lcd->window[plane].winctrl1;
+ winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
+ winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
+
+ /* Check for off-screen adjustments */
+ xsz = win->w[plane].xres;
+ ysz = win->w[plane].yres;
+ if ((xpos + win->w[plane].xres) > panel->Xres) {
+ /* Off-screen to the right */
+ xsz = panel->Xres - xpos; /* off by 1 ??? */
+ /*printk("off screen right\n");*/
+ }
+
+ if ((ypos + win->w[plane].yres) > panel->Yres) {
+ /* Off-screen to the bottom */
+ ysz = panel->Yres - ypos; /* off by 1 ??? */
+ /*printk("off screen bottom\n");*/
+ }
+
+ if (xpos < 0) {
+ /* Off-screen to the left */
+ xsz = win->w[plane].xres + xpos;
+ fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
+ xpos = 0;
+ /*printk("off screen left\n");*/
+ }
+
+ if (ypos < 0) {
+ /* Off-screen to the top */
+ ysz = win->w[plane].yres + ypos;
+ /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
+ ypos = 0;
+ /*printk("off screen top\n");*/
+ }
+
+ /* record settings */
+ win->w[plane].xpos = xpos;
+ win->w[plane].ypos = ypos;
+
+ xsz -= 1;
+ ysz -= 1;
+ winctrl0 |= (xpos << 21);
+ winctrl0 |= (ypos << 10);
+ winctrl1 |= (xsz << 11);
+ winctrl1 |= (ysz << 0);
+
+ /* Disable the window while making changes, then restore WINEN */
+ winenable = lcd->winenable & (1 << plane);
+ au_sync();
+ lcd->winenable &= ~(1 << plane);
+ lcd->window[plane].winctrl0 = winctrl0;
+ lcd->window[plane].winctrl1 = winctrl1;
+ lcd->window[plane].winbuf0 =
+ lcd->window[plane].winbuf1 = fbdev->fb_phys;
+ lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
+ lcd->winenable |= winenable;
+ au_sync();
+
+ return 0;
+}
+
+static void au1200_setpanel (struct panel_settings *newpanel)
+{
+ /*
+ * Perform global setup/init of LCD controller
+ */
+ uint32 winenable;
+
+ /* Make sure all windows disabled */
+ winenable = lcd->winenable;
+ lcd->winenable = 0;
+ au_sync();
+ /*
+ * Ensure everything is disabled before reconfiguring
+ */
+ if (lcd->screen & LCD_SCREEN_SEN) {
+ /* Wait for vertical sync period */
+ lcd->intstatus = LCD_INT_SS;
+ while ((lcd->intstatus & LCD_INT_SS) == 0) {
+ au_sync();
+ }
+
+ lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
+
+ do {
+ lcd->intstatus = lcd->intstatus; /*clear interrupts*/
+ au_sync();
+ /*wait for controller to shut down*/
+ } while ((lcd->intstatus & LCD_INT_SD) == 0);
+
+ /* Call shutdown of current panel (if up) */
+ /* this must occur last, because if an external clock is driving
+ the controller, the clock cannot be turned off before first
+ shutting down the controller.
+ */
+ if (panel->device_shutdown != NULL)
+ panel->device_shutdown();
+ }
+
+ /* Newpanel == NULL indicates a shutdown operation only */
+ if (newpanel == NULL)
+ return;
+
+ panel = newpanel;
+
+ printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
+
+ /*
+ * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
+ */
+ if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
+ {
+ uint32 sys_clksrc;
+ au_writel(panel->mode_auxpll, SYS_AUXPLL);
+ sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
+ sys_clksrc |= panel->mode_toyclksrc;
+ au_writel(sys_clksrc, SYS_CLKSRC);
+ }
+
+ /*
+ * Configure panel timings
+ */
+ lcd->screen = panel->mode_screen;
+ lcd->horztiming = panel->mode_horztiming;
+ lcd->verttiming = panel->mode_verttiming;
+ lcd->clkcontrol = panel->mode_clkcontrol;
+ lcd->pwmdiv = panel->mode_pwmdiv;
+ lcd->pwmhi = panel->mode_pwmhi;
+ lcd->outmask = panel->mode_outmask;
+ lcd->fifoctrl = panel->mode_fifoctrl;
+ au_sync();
+
+ /* fixme: Check window settings to make sure still valid
+ * for new geometry */
+#if 0
+ au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
+ au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
+ au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
+ au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
+#endif
+ lcd->winenable = winenable;
+
+ /*
+ * Re-enable screen now that it is configured
+ */
+ lcd->screen |= LCD_SCREEN_SEN;
+ au_sync();
+
+ /* Call init of panel */
+ if (panel->device_init != NULL) panel->device_init();
+
+ /* FIX!!!! not appropriate on panel change!!! Global setup/init */
+ lcd->intenable = 0;
+ lcd->intstatus = ~0;
+ lcd->backcolor = win->mode_backcolor;
+
+ /* Setup Color Key - FIX!!! */
+ lcd->colorkey = win->mode_colorkey;
+ lcd->colorkeymsk = win->mode_colorkeymsk;
+
+ /* Setup HWCursor - FIX!!! Need to support this eventually */
+ lcd->hwc.cursorctrl = 0;
+ lcd->hwc.cursorpos = 0;
+ lcd->hwc.cursorcolor0 = 0;
+ lcd->hwc.cursorcolor1 = 0;
+ lcd->hwc.cursorcolor2 = 0;
+ lcd->hwc.cursorcolor3 = 0;
+
+
+#if 0
+#define D(X) printk("%25s: %08X\n", #X, X)
+ D(lcd->screen);
+ D(lcd->horztiming);
+ D(lcd->verttiming);
+ D(lcd->clkcontrol);
+ D(lcd->pwmdiv);
+ D(lcd->pwmhi);
+ D(lcd->outmask);
+ D(lcd->fifoctrl);
+ D(lcd->window[0].winctrl0);
+ D(lcd->window[0].winctrl1);
+ D(lcd->window[0].winctrl2);
+ D(lcd->window[0].winbuf0);
+ D(lcd->window[0].winbuf1);
+ D(lcd->window[0].winbufctrl);
+ D(lcd->window[1].winctrl0);
+ D(lcd->window[1].winctrl1);
+ D(lcd->window[1].winctrl2);
+ D(lcd->window[1].winbuf0);
+ D(lcd->window[1].winbuf1);
+ D(lcd->window[1].winbufctrl);
+ D(lcd->window[2].winctrl0);
+ D(lcd->window[2].winctrl1);
+ D(lcd->window[2].winctrl2);
+ D(lcd->window[2].winbuf0);
+ D(lcd->window[2].winbuf1);
+ D(lcd->window[2].winbufctrl);
+ D(lcd->window[3].winctrl0);
+ D(lcd->window[3].winctrl1);
+ D(lcd->window[3].winctrl2);
+ D(lcd->window[3].winbuf0);
+ D(lcd->window[3].winbuf1);
+ D(lcd->window[3].winbufctrl);
+ D(lcd->winenable);
+ D(lcd->intenable);
+ D(lcd->intstatus);
+ D(lcd->backcolor);
+ D(lcd->winenable);
+ D(lcd->colorkey);
+ D(lcd->colorkeymsk);
+ D(lcd->hwc.cursorctrl);
+ D(lcd->hwc.cursorpos);
+ D(lcd->hwc.cursorcolor0);
+ D(lcd->hwc.cursorcolor1);
+ D(lcd->hwc.cursorcolor2);
+ D(lcd->hwc.cursorcolor3);
+#endif
+}
+
+static void au1200_setmode(struct au1200fb_device *fbdev)
+{
+ int plane = fbdev->plane;
+ /* Window/plane setup */
+ lcd->window[plane].winctrl1 = ( 0
+ | LCD_WINCTRL1_PRI_N(plane)
+ | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
+ ) ;
+
+ au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
+
+ lcd->window[plane].winctrl2 = ( 0
+ | LCD_WINCTRL2_CKMODE_00
+ | LCD_WINCTRL2_DBM
+ | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length)
+ | LCD_WINCTRL2_SCX_1
+ | LCD_WINCTRL2_SCY_1
+ ) ;
+ lcd->winenable |= win->w[plane].mode_winenable;
+ au_sync();
+}
+
+
+/* Inline helpers */
+
+/*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
+/*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
+
+#define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
+
+/* Bitfields format supported by the controller. */
+static struct fb_bitfield rgb_bitfields[][4] = {
+ /* Red, Green, Blue, Transp */
+ [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
+ { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
+ { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
+ { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
+ { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
+ { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
+ { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
+ { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
+
+ [LCD_WINCTRL1_FRM_24BPP >> 25] =
+ { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_32BPP >> 25] =
+ { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* Helpers */
+
+static void au1200fb_update_fbinfo(struct fb_info *fbi)
+{
+ /* FIX!!!! This also needs to take the window pixel format into account!!! */
+
+ /* Update var-dependent FB info */
+ if (panel_is_color(panel)) {
+ if (fbi->var.bits_per_pixel <= 8) {
+ /* palettized */
+ fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ fbi->fix.line_length = fbi->var.xres_virtual /
+ (8/fbi->var.bits_per_pixel);
+ } else {
+ /* non-palettized */
+ fbi->fix.visual = FB_VISUAL_TRUECOLOR;
+ fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
+ }
+ } else {
+ /* mono FIX!!! mono 8 and 4 bits */
+ fbi->fix.visual = FB_VISUAL_MONO10;
+ fbi->fix.line_length = fbi->var.xres_virtual / 8;
+ }
+
+ fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
+ print_dbg("line length: %d\n", fbi->fix.line_length);
+ print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* AU1200 framebuffer driver */
+
+/* fb_check_var
+ * Validate var settings with hardware restrictions and modify it if necessary
+ */
+static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *fbi)
+{
+ struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
+ u32 pixclock;
+ int screen_size, plane;
+
+ plane = fbdev->plane;
+
+ /* Make sure that the mode respect all LCD controller and
+ * panel restrictions. */
+ var->xres = win->w[plane].xres;
+ var->yres = win->w[plane].yres;
+
+ /* No need for virtual resolution support */
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+
+ var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
+
+ screen_size = var->xres_virtual * var->yres_virtual;
+ if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
+ else screen_size /= (8/var->bits_per_pixel);
+
+ if (fbdev->fb_len < screen_size)
+ return -EINVAL; /* Virtual screen is to big, abort */
+
+ /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
+ /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
+ * clock can only be obtain by dividing this value by an even integer.
+ * Fallback to a slower pixel clock if necessary. */
+ pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
+ pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2));
+
+ if (AU1200_LCD_MAX_CLK % pixclock) {
+ int diff = AU1200_LCD_MAX_CLK % pixclock;
+ pixclock -= diff;
+ }
+
+ var->pixclock = KHZ2PICOS(pixclock/1000);
+#if 0
+ if (!panel_is_active(panel)) {
+ int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
+
+ if (!panel_is_color(panel)
+ && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
+ /* STN 8bit mono panel support is up to 6MHz pixclock */
+ var->pixclock = KHZ2PICOS(6000);
+ } else if (!pcd) {
+ /* Other STN panel support is up to 12MHz */
+ var->pixclock = KHZ2PICOS(12000);
+ }
+ }
+#endif
+ /* Set bitfield accordingly */
+ switch (var->bits_per_pixel) {
+ case 16:
+ {
+ /* 16bpp True color.
+ * These must be set to MATCH WINCTRL[FORM] */
+ int idx;
+ idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
+ var->red = rgb_bitfields[idx][0];
+ var->green = rgb_bitfields[idx][1];
+ var->blue = rgb_bitfields[idx][2];
+ var->transp = rgb_bitfields[idx][3];
+ break;
+ }
+
+ case 32:
+ {
+ /* 32bpp True color.
+ * These must be set to MATCH WINCTRL[FORM] */
+ int idx;
+ idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
+ var->red = rgb_bitfields[idx][0];
+ var->green = rgb_bitfields[idx][1];
+ var->blue = rgb_bitfields[idx][2];
+ var->transp = rgb_bitfields[idx][3];
+ break;
+ }
+ default:
+ print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* fb_set_par
+ * Set hardware with var settings. This will enable the controller with a
+ * specific mode, normally validated with the fb_check_var method
+ */
+static int au1200fb_fb_set_par(struct fb_info *fbi)
+{
+ struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
+
+ au1200fb_update_fbinfo(fbi);
+ au1200_setmode(fbdev);
+
+ return 0;
+}
+
+/* fb_setcolreg
+ * Set color in LCD palette.
+ */
+static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *fbi)
+{
+ volatile u32 *palette = lcd->palette;
+ u32 value;
+
+ if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
+ return -EINVAL;
+
+ if (fbi->var.grayscale) {
+ /* Convert color to grayscale */
+ red = green = blue =
+ (19595 * red + 38470 * green + 7471 * blue) >> 16;
+ }
+
+ if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
+ /* Place color in the pseudopalette */
+ if (regno > 16)
+ return -EINVAL;
+
+ palette = (u32*) fbi->pseudo_palette;
+
+ red >>= (16 - fbi->var.red.length);
+ green >>= (16 - fbi->var.green.length);
+ blue >>= (16 - fbi->var.blue.length);
+
+ value = (red << fbi->var.red.offset) |
+ (green << fbi->var.green.offset)|
+ (blue << fbi->var.blue.offset);
+ value &= 0xFFFF;
+
+ } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
+ /* COLOR TFT PALLETTIZED (use RGB 565) */
+ value = (red & 0xF800)|((green >> 5) &
+ 0x07E0)|((blue >> 11) & 0x001F);
+ value &= 0xFFFF;
+
+ } else if (0 /*panel_is_color(fbdev->panel)*/) {
+ /* COLOR STN MODE */
+ value = 0x1234;
+ value &= 0xFFF;
+ } else {
+ /* MONOCHROME MODE */
+ value = (green >> 12) & 0x000F;
+ value &= 0xF;
+ }
+
+ palette[regno] = value;
+
+ return 0;
+}
+
+/* fb_blank
+ * Blank the screen. Depending on the mode, the screen will be
+ * activated with the backlight color, or desactivated
+ */
+static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
+{
+ /* Short-circuit screen blanking */
+ if (noblanking)
+ return 0;
+
+ switch (blank_mode) {
+
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ /* printk("turn on panel\n"); */
+ au1200_setpanel(panel);
+ break;
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_POWERDOWN:
+ /* printk("turn off panel\n"); */
+ au1200_setpanel(NULL);
+ break;
+ default:
+ break;
+
+ }
+
+ /* FB_BLANK_NORMAL is a soft blank */
+ return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
+}
+
+/* fb_mmap
+ * Map video memory in user space. We don't use the generic fb_mmap
+ * method mainly to allow the use of the TLB streaming flag (CCA=6)
+ */
+static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+
+{
+ unsigned int len;
+ unsigned long start=0, off;
+ struct au1200fb_device *fbdev = (struct au1200fb_device *) info;
+
+#ifdef CONFIG_PM
+ au1xxx_pm_access(LCD_pm_dev);
+#endif
+
+ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
+ return -EINVAL;
+ }
+
+ start = fbdev->fb_phys & PAGE_MASK;
+ len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
+
+ off = vma->vm_pgoff << PAGE_SHIFT;
+
+ if ((vma->vm_end - vma->vm_start + off) > len) {
+ return -EINVAL;
+ }
+
+ off += start;
+ vma->vm_pgoff = off >> PAGE_SHIFT;
+
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
+
+ vma->vm_flags |= VM_IO;
+
+ return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot);
+
+ return 0;
+}
+
+static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
+{
+
+ unsigned int hi1, divider;
+
+ /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
+
+ if (pdata->flags & SCREEN_BACKCOLOR)
+ lcd->backcolor = pdata->backcolor;
+
+ if (pdata->flags & SCREEN_BRIGHTNESS) {
+
+ // limit brightness pwm duty to >= 30/1600
+ if (pdata->brightness < 30) {
+ pdata->brightness = 30;
+ }
+ divider = (lcd->pwmdiv & 0x3FFFF) + 1;
+ hi1 = (lcd->pwmhi >> 16) + 1;
+ hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
+ lcd->pwmhi &= 0xFFFF;
+ lcd->pwmhi |= (hi1 << 16);
+ }
+
+ if (pdata->flags & SCREEN_COLORKEY)
+ lcd->colorkey = pdata->colorkey;
+
+ if (pdata->flags & SCREEN_MASK)
+ lcd->colorkeymsk = pdata->mask;
+ au_sync();
+}
+
+static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
+{
+ unsigned int hi1, divider;
+
+ pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
+ pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
+
+ pdata->backcolor = lcd->backcolor;
+ pdata->colorkey = lcd->colorkey;
+ pdata->mask = lcd->colorkeymsk;
+
+ // brightness
+ hi1 = (lcd->pwmhi >> 16) + 1;
+ divider = (lcd->pwmdiv & 0x3FFFF) + 1;
+ pdata->brightness = ((hi1 << 8) / divider) - 1;
+ au_sync();
+}
+
+static void set_window(unsigned int plane,
+ struct au1200_lcd_window_regs_t *pdata)
+{
+ unsigned int val, bpp;
+
+ /* Window control register 0 */
+ if (pdata->flags & WIN_POSITION) {
+ val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
+ LCD_WINCTRL0_OY);
+ val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
+ val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
+ lcd->window[plane].winctrl0 = val;
+ }
+ if (pdata->flags & WIN_ALPHA_COLOR) {
+ val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
+ val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
+ lcd->window[plane].winctrl0 = val;
+ }
+ if (pdata->flags & WIN_ALPHA_MODE) {
+ val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
+ val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
+ lcd->window[plane].winctrl0 = val;
+ }
+
+ /* Window control register 1 */
+ if (pdata->flags & WIN_PRIORITY) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
+ val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_CHANNEL) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
+ val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_BUFFER_FORMAT) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
+ val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_COLOR_ORDER) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
+ val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_PIXEL_ORDER) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
+ val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_SIZE) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
+ LCD_WINCTRL1_SZY);
+ val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
+ val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
+ lcd->window[plane].winctrl1 = val;
+ /* program buffer line width */
+ bpp = winbpp(val) / 8;
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
+ val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
+ lcd->window[plane].winctrl2 = val;
+ }
+
+ /* Window control register 2 */
+ if (pdata->flags & WIN_COLORKEY_MODE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
+ val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
+ lcd->window[plane].winctrl2 = val;
+ }
+ if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
+ val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
+ lcd->window[plane].winctrl2 = val;
+ }
+ if (pdata->flags & WIN_RAM_ARRAY_MODE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
+ val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
+ lcd->window[plane].winctrl2 = val;
+ }
+
+ /* Buffer line width programmed with WIN_SIZE */
+
+ if (pdata->flags & WIN_BUFFER_SCALE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
+ LCD_WINCTRL2_SCY);
+ val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
+ val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
+ lcd->window[plane].winctrl2 = val;
+ }
+
+ if (pdata->flags & WIN_ENABLE) {
+ val = lcd->winenable;
+ val &= ~(1<<plane);
+ val |= (pdata->enable & 1) << plane;
+ lcd->winenable = val;
+ }
+ au_sync();
+}
+
+static void get_window(unsigned int plane,
+ struct au1200_lcd_window_regs_t *pdata)
+{
+ /* Window control register 0 */
+ pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
+ pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
+ pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
+ pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
+
+ /* Window control register 1 */
+ pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
+ pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
+ pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
+ pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
+ pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
+ pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
+ pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
+
+ /* Window control register 2 */
+ pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
+ pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
+ pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
+
+ pdata->enable = (lcd->winenable >> plane) & 1;
+ au_sync();
+}
+
+static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ int plane;
+ int val;
+
+#ifdef CONFIG_PM
+ au1xxx_pm_access(LCD_pm_dev);
+#endif
+
+ plane = fbinfo2index(info);
+ print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
+
+ if (cmd == AU1200_LCD_FB_IOCTL) {
+ struct au1200_lcd_iodata_t iodata;
+
+ if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
+ return -EFAULT;
+
+ print_dbg("FB IOCTL called\n");
+
+ switch (iodata.subcmd) {
+ case AU1200_LCD_SET_SCREEN:
+ print_dbg("AU1200_LCD_SET_SCREEN\n");
+ set_global(cmd, &iodata.global);
+ break;
+
+ case AU1200_LCD_GET_SCREEN:
+ print_dbg("AU1200_LCD_GET_SCREEN\n");
+ get_global(cmd, &iodata.global);
+ break;
+
+ case AU1200_LCD_SET_WINDOW:
+ print_dbg("AU1200_LCD_SET_WINDOW\n");
+ set_window(plane, &iodata.window);
+ break;
+
+ case AU1200_LCD_GET_WINDOW:
+ print_dbg("AU1200_LCD_GET_WINDOW\n");
+ get_window(plane, &iodata.window);
+ break;
+
+ case AU1200_LCD_SET_PANEL:
+ print_dbg("AU1200_LCD_SET_PANEL\n");
+ if ((iodata.global.panel_choice >= 0) &&
+ (iodata.global.panel_choice <
+ NUM_PANELS))
+ {
+ struct panel_settings *newpanel;
+ panel_index = iodata.global.panel_choice;
+ newpanel = &known_lcd_panels[panel_index];
+ au1200_setpanel(newpanel);
+ }
+ break;
+
+ case AU1200_LCD_GET_PANEL:
+ print_dbg("AU1200_LCD_GET_PANEL\n");
+ iodata.global.panel_choice = panel_index;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
+ if (val) {
+ print_dbg("error: could not copy %d bytes\n", val);
+ return -EFAULT;
+ }
+ }
+
+ return 0;
+}
+
+
+static struct fb_ops au1200fb_fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = au1200fb_fb_check_var,
+ .fb_set_par = au1200fb_fb_set_par,
+ .fb_setcolreg = au1200fb_fb_setcolreg,
+ .fb_blank = au1200fb_fb_blank,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_sync = NULL,
+ .fb_ioctl = au1200fb_ioctl,
+ .fb_mmap = au1200fb_fb_mmap,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id, struct pt_regs *regs)
+{
+ /* Nothing to do for now, just clear any pending interrupt */
+ lcd->intstatus = lcd->intstatus;
+ au_sync();
+
+ return IRQ_HANDLED;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* AU1200 LCD device probe helpers */
+
+static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
+{
+ struct fb_info *fbi = &fbdev->fb_info;
+ int bpp;
+
+ memset(fbi, 0, sizeof(struct fb_info));
+ fbi->fbops = &au1200fb_fb_ops;
+
+ bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
+
+ /* Copy monitor specs from panel data */
+ /* fixme: we're setting up LCD controller windows, so these dont give a
+ damn as to what the monitor specs are (the panel itself does, but that
+ isnt done here...so maybe need a generic catchall monitor setting??? */
+ memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
+
+ /* We first try the user mode passed in argument. If that failed,
+ * or if no one has been specified, we default to the first mode of the
+ * panel list. Note that after this call, var data will be set */
+ if (!fb_find_mode(&fbi->var,
+ fbi,
+ NULL, /* drv_info.opt_mode, */
+ fbi->monspecs.modedb,
+ fbi->monspecs.modedb_len,
+ fbi->monspecs.modedb,
+ bpp)) {
+
+ print_err("Cannot find valid mode for panel %s", panel->name);
+ return -EFAULT;
+ }
+
+ fbi->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
+ if (!fbi->pseudo_palette) {
+ return -ENOMEM;
+ }
+ memset(fbi->pseudo_palette, 0, sizeof(u32) * 16);
+
+ if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
+ print_err("Fail to allocate colormap (%d entries)",
+ AU1200_LCD_NBR_PALETTE_ENTRIES);
+ kfree(fbi->pseudo_palette);
+ return -EFAULT;
+ }
+
+ strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
+ fbi->fix.smem_start = fbdev->fb_phys;
+ fbi->fix.smem_len = fbdev->fb_len;
+ fbi->fix.type = FB_TYPE_PACKED_PIXELS;
+ fbi->fix.xpanstep = 0;
+ fbi->fix.ypanstep = 0;
+ fbi->fix.mmio_start = 0;
+ fbi->fix.mmio_len = 0;
+ fbi->fix.accel = FB_ACCEL_NONE;
+
+ fbi->screen_base = (char __iomem *) fbdev->fb_mem;
+
+ au1200fb_update_fbinfo(fbi);
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* AU1200 LCD controller device driver */
+
+static int au1200fb_drv_probe(struct device *dev)
+{
+ struct au1200fb_device *fbdev;
+ unsigned long page;
+ int bpp, plane, ret;
+
+ if (!dev)
+ return -EINVAL;
+
+ for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
+ bpp = winbpp(win->w[plane].mode_winctrl1);
+ if (win->w[plane].xres == 0)
+ win->w[plane].xres = panel->Xres;
+ if (win->w[plane].yres == 0)
+ win->w[plane].yres = panel->Yres;
+
+ fbdev = &_au1200fb_devices[plane];
+ memset(fbdev, 0, sizeof(struct au1200fb_device));
+ fbdev->plane = plane;
+
+ /* Allocate the framebuffer to the maximum screen size */
+ fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
+
+ fbdev->fb_mem = dma_alloc_noncoherent(dev,
+ PAGE_ALIGN(fbdev->fb_len),
+ &fbdev->fb_phys, GFP_KERNEL);
+ if (!fbdev->fb_mem) {
+ print_err("fail to allocate frambuffer (size: %dK))",
+ fbdev->fb_len / 1024);
+ return -ENOMEM;
+ }
+
+ /*
+ * Set page reserved so that mmap will work. This is necessary
+ * since we'll be remapping normal memory.
+ */
+ for (page = (unsigned long)fbdev->fb_phys;
+ page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
+ fbdev->fb_len);
+ page += PAGE_SIZE) {
+ SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
+ }
+ print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
+ print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
+
+ /* Init FB data */
+ if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
+ goto failed;
+
+ /* Register new framebuffer */
+ if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {
+ print_err("cannot register new framebuffer");
+ goto failed;
+ }
+
+ au1200fb_fb_set_par(&fbdev->fb_info);
+
+#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
+ if (plane == 0)
+ if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {
+ /* Start display and show logo on boot */
+ fb_set_cmap(&fbdev->fb_info.cmap,
+ &fbdev->fb_info);
+
+ fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);
+ }
+#endif
+ }
+
+ /* Now hook interrupt too */
+ if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq,
+ SA_INTERRUPT | SA_SHIRQ, "lcd", (void *)dev)) < 0) {
+ print_err("fail to request interrupt line %d (err: %d)",
+ AU1200_LCD_INT, ret);
+ goto failed;
+ }
+
+ return 0;
+
+failed:
+ /* NOTE: This only does the current plane/window that failed; others are still active */
+ if (fbdev->fb_mem)
+ dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
+ fbdev->fb_mem, fbdev->fb_phys);
+ if (fbdev->fb_info.cmap.len != 0)
+ fb_dealloc_cmap(&fbdev->fb_info.cmap);
+ if (fbdev->fb_info.pseudo_palette)
+ kfree(fbdev->fb_info.pseudo_palette);
+ if (plane == 0)
+ free_irq(AU1200_LCD_INT, (void*)dev);
+ return ret;
+}
+
+static int au1200fb_drv_remove(struct device *dev)
+{
+ struct au1200fb_device *fbdev;
+ int plane;
+
+ if (!dev)
+ return -ENODEV;
+
+ /* Turn off the panel */
+ au1200_setpanel(NULL);
+
+ for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)
+ {
+ fbdev = &_au1200fb_devices[plane];
+
+ /* Clean up all probe data */
+ unregister_framebuffer(&fbdev->fb_info);
+ if (fbdev->fb_mem)
+ dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
+ fbdev->fb_mem, fbdev->fb_phys);
+ if (fbdev->fb_info.cmap.len != 0)
+ fb_dealloc_cmap(&fbdev->fb_info.cmap);
+ if (fbdev->fb_info.pseudo_palette)
+ kfree(fbdev->fb_info.pseudo_palette);
+ }
+
+ free_irq(AU1200_LCD_INT, (void *)dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int au1200fb_drv_suspend(struct device *dev, u32 state, u32 level)
+{
+ /* TODO */
+ return 0;
+}
+
+static int au1200fb_drv_resume(struct device *dev, u32 level)
+{
+ /* TODO */
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static struct device_driver au1200fb_driver = {
+ .name = "au1200-lcd",
+ .bus = &platform_bus_type,
+ .probe = au1200fb_drv_probe,
+ .remove = au1200fb_drv_remove,
+#ifdef CONFIG_PM
+ .suspend = au1200fb_drv_suspend,
+ .resume = au1200fb_drv_resume,
+#endif
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* Kernel driver */
+
+static void au1200fb_setup(void)
+{
+ char* options = NULL;
+ char* this_opt;
+ int num_panels = ARRAY_SIZE(known_lcd_panels);
+ int panel_idx = -1;
+
+ fb_get_options(DRIVER_NAME, &options);
+
+ if (options) {
+ while ((this_opt = strsep(&options,",")) != NULL) {
+ /* Panel option - can be panel name,
+ * "bs" for board-switch, or number/index */
+ if (!strncmp(this_opt, "panel:", 6)) {
+ int i;
+ long int li;
+ char *endptr;
+ this_opt += 6;
+ /* First check for index, which allows
+ * to short circuit this mess */
+ li = simple_strtol(this_opt, &endptr, 0);
+ if (*endptr == '\0') {
+ panel_idx = (int)li;
+ }
+ else if (strcmp(this_opt, "bs") == 0) {
+ extern int board_au1200fb_panel(void);
+ panel_idx = board_au1200fb_panel();
+ }
+
+ else
+ for (i = 0; i < num_panels; i++) {
+ if (!strcmp(this_opt, known_lcd_panels[i].name)) {
+ panel_idx = i;
+ break;
+ }
+ }
+
+ if ((panel_idx < 0) || (panel_idx >= num_panels)) {
+ print_warn("Panel %s not supported!", this_opt);
+ }
+ else
+ panel_index = panel_idx;
+ }
+
+ else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
+ nohwcursor = 1;
+ }
+
+ /* Unsupported option */
+ else {
+ print_warn("Unsupported option \"%s\"", this_opt);
+ }
+ }
+ }
+}
+
+#ifdef CONFIG_PM
+static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
+ au1xxx_request_t request, void *data) {
+ int retval = -1;
+ unsigned int d = 0;
+ unsigned int brightness = 0;
+
+ if (request == AU1XXX_PM_SLEEP) {
+ board_au1200fb_panel_shutdown();
+ }
+ else if (request == AU1XXX_PM_WAKEUP) {
+ if(dev->prev_state == SLEEP_STATE)
+ {
+ int plane;
+ au1200_setpanel(panel);
+ for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
+ struct au1200fb_device *fbdev;
+ fbdev = &_au1200fb_devices[plane];
+ au1200fb_fb_set_par(&fbdev->fb_info);
+ }
+ }
+
+ d = *((unsigned int*)data);
+ if(d <=10) brightness = 26;
+ else if(d<=20) brightness = 51;
+ else if(d<=30) brightness = 77;
+ else if(d<=40) brightness = 102;
+ else if(d<=50) brightness = 128;
+ else if(d<=60) brightness = 153;
+ else if(d<=70) brightness = 179;
+ else if(d<=80) brightness = 204;
+ else if(d<=90) brightness = 230;
+ else brightness = 255;
+ set_brightness(brightness);
+ } else if (request == AU1XXX_PM_GETSTATUS) {
+ return dev->cur_state;
+ } else if (request == AU1XXX_PM_ACCESS) {
+ if (dev->cur_state != SLEEP_STATE)
+ return retval;
+ else {
+ au1200_setpanel(panel);
+ }
+ } else if (request == AU1XXX_PM_IDLE) {
+ } else if (request == AU1XXX_PM_CLEANUP) {
+ }
+
+ return retval;
+}
+#endif
+
+static int __init au1200fb_init(void)
+{
+ print_info("" DRIVER_DESC "");
+
+ /* Setup driver with options */
+ au1200fb_setup();
+
+ /* Point to the panel selected */
+ panel = &known_lcd_panels[panel_index];
+ win = &windows[window_index];
+
+ printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
+ printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
+
+ /* Kickstart the panel, the framebuffers/windows come soon enough */
+ au1200_setpanel(panel);
+
+ #ifdef CONFIG_PM
+ LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);
+ if ( LCD_pm_dev == NULL)
+ printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");
+ else
+ printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");
+ #endif
+
+ return driver_register(&au1200fb_driver);
+}
+
+static void __exit au1200fb_cleanup(void)
+{
+ driver_unregister(&au1200fb_driver);
+}
+
+module_init(au1200fb_init);
+module_exit(au1200fb_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Au1200 LCD Driver.
+ *
+ * Copyright 2004-2005 AMD
+ * Author: AMD
+ *
+ * Based on:
+ * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device
+ * Created 28 Dec 1997 by Geert Uytterhoeven
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ctype.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include "au1200fb.h"
+
+#ifdef CONFIG_PM
+#include <asm/mach-au1x00/au1xxx_pm.h>
+#endif
+
+#ifndef CONFIG_FB_AU1200_DEVS
+#define CONFIG_FB_AU1200_DEVS 4
+#endif
+
+#define DRIVER_NAME "au1200fb"
+#define DRIVER_DESC "LCD controller driver for AU1200 processors"
+
+#define DEBUG 1
+
+#define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
+#define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
+#define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
+
+#if DEBUG
+#define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
+#else
+#define print_dbg(f, arg...) do {} while (0)
+#endif
+
+
+#define AU1200_LCD_FB_IOCTL 0x46FF
+
+#define AU1200_LCD_SET_SCREEN 1
+#define AU1200_LCD_GET_SCREEN 2
+#define AU1200_LCD_SET_WINDOW 3
+#define AU1200_LCD_GET_WINDOW 4
+#define AU1200_LCD_SET_PANEL 5
+#define AU1200_LCD_GET_PANEL 6
+
+#define SCREEN_SIZE (1<< 1)
+#define SCREEN_BACKCOLOR (1<< 2)
+#define SCREEN_BRIGHTNESS (1<< 3)
+#define SCREEN_COLORKEY (1<< 4)
+#define SCREEN_MASK (1<< 5)
+
+struct au1200_lcd_global_regs_t {
+ unsigned int flags;
+ unsigned int xsize;
+ unsigned int ysize;
+ unsigned int backcolor;
+ unsigned int brightness;
+ unsigned int colorkey;
+ unsigned int mask;
+ unsigned int panel_choice;
+ char panel_desc[80];
+
+};
+
+#define WIN_POSITION (1<< 0)
+#define WIN_ALPHA_COLOR (1<< 1)
+#define WIN_ALPHA_MODE (1<< 2)
+#define WIN_PRIORITY (1<< 3)
+#define WIN_CHANNEL (1<< 4)
+#define WIN_BUFFER_FORMAT (1<< 5)
+#define WIN_COLOR_ORDER (1<< 6)
+#define WIN_PIXEL_ORDER (1<< 7)
+#define WIN_SIZE (1<< 8)
+#define WIN_COLORKEY_MODE (1<< 9)
+#define WIN_DOUBLE_BUFFER_MODE (1<< 10)
+#define WIN_RAM_ARRAY_MODE (1<< 11)
+#define WIN_BUFFER_SCALE (1<< 12)
+#define WIN_ENABLE (1<< 13)
+
+struct au1200_lcd_window_regs_t {
+ unsigned int flags;
+ unsigned int xpos;
+ unsigned int ypos;
+ unsigned int alpha_color;
+ unsigned int alpha_mode;
+ unsigned int priority;
+ unsigned int channel;
+ unsigned int buffer_format;
+ unsigned int color_order;
+ unsigned int pixel_order;
+ unsigned int xsize;
+ unsigned int ysize;
+ unsigned int colorkey_mode;
+ unsigned int double_buffer_mode;
+ unsigned int ram_array_mode;
+ unsigned int xscale;
+ unsigned int yscale;
+ unsigned int enable;
+};
+
+
+struct au1200_lcd_iodata_t {
+ unsigned int subcmd;
+ struct au1200_lcd_global_regs_t global;
+ struct au1200_lcd_window_regs_t window;
+};
+
+#if defined(__BIG_ENDIAN)
+#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
+#else
+#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
+#endif
+#define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
+
+/* Private, per-framebuffer management information (independent of the panel itself) */
+struct au1200fb_device {
+ struct fb_info fb_info; /* FB driver info record */
+
+ int plane;
+ unsigned char* fb_mem; /* FrameBuffer memory map */
+ unsigned int fb_len;
+ dma_addr_t fb_phys;
+};
+
+static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS];
+/********************************************************************/
+
+/* LCD controller restrictions */
+#define AU1200_LCD_MAX_XRES 1280
+#define AU1200_LCD_MAX_YRES 1024
+#define AU1200_LCD_MAX_BPP 32
+#define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */
+#define AU1200_LCD_NBR_PALETTE_ENTRIES 256
+
+/* Default number of visible screen buffer to allocate */
+#define AU1200FB_NBR_VIDEO_BUFFERS 1
+
+/********************************************************************/
+
+static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
+static int window_index = 2; /* default is zero */
+static int panel_index = 2; /* default is zero */
+static struct window_settings *win;
+static struct panel_settings *panel;
+static int noblanking = 1;
+static int nohwcursor = 0;
+
+struct window_settings {
+ unsigned char name[64];
+ uint32 mode_backcolor;
+ uint32 mode_colorkey;
+ uint32 mode_colorkeymsk;
+ struct {
+ int xres;
+ int yres;
+ int xpos;
+ int ypos;
+ uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
+ uint32 mode_winenable;
+ } w[4];
+};
+
+#if defined(__BIG_ENDIAN)
+#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
+#else
+#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
+#endif
+
+extern int board_au1200fb_panel_init (void);
+extern int board_au1200fb_panel_shutdown (void);
+
+#ifdef CONFIG_PM
+int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
+ au1xxx_request_t request, void *data);
+au1xxx_power_dev_t *LCD_pm_dev;
+#endif
+
+/*
+ * Default window configurations
+ */
+static struct window_settings windows[] = {
+ { /* Index 0 */
+ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
+ /* mode_backcolor */ 0x006600ff,
+ /* mode_colorkey,msk*/ 0, 0,
+ {
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ LCD_WINENABLE_WEN0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ LCD_WINENABLE_WEN1,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ 0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0,
+ },
+ },
+ },
+
+ { /* Index 1 */
+ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
+ /* mode_backcolor */ 0x006600ff,
+ /* mode_colorkey,msk*/ 0, 0,
+ {
+ {
+ /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
+ LCD_WINCTRL1_PO_00,
+ /* mode_winenable*/ LCD_WINENABLE_WEN0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
+ | LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ 0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0,
+ },
+ },
+ },
+ { /* Index 2 */
+ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
+ /* mode_backcolor */ 0x006600ff,
+ /* mode_colorkey,msk*/ 0, 0,
+ {
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ LCD_WINENABLE_WEN0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP,
+ /* mode_winenable*/ 0,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
+ LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
+ },
+ {
+ /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
+ /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
+ LCD_WINCTRL1_PO_16BPP |
+ LCD_WINCTRL1_PIPE,
+ /* mode_winenable*/ 0,
+ },
+ },
+ },
+ /* Need VGA 640 @ 24bpp, @ 32bpp */
+ /* Need VGA 800 @ 24bpp, @ 32bpp */
+ /* Need VGA 1024 @ 24bpp, @ 32bpp */
+};
+
+/*
+ * Controller configurations for various panels.
+ */
+
+struct panel_settings
+{
+ const char name[25]; /* Full name <vendor>_<model> */
+
+ struct fb_monspecs monspecs; /* FB monitor specs */
+
+ /* panel timings */
+ uint32 mode_screen;
+ uint32 mode_horztiming;
+ uint32 mode_verttiming;
+ uint32 mode_clkcontrol;
+ uint32 mode_pwmdiv;
+ uint32 mode_pwmhi;
+ uint32 mode_outmask;
+ uint32 mode_fifoctrl;
+ uint32 mode_toyclksrc;
+ uint32 mode_backlight;
+ uint32 mode_auxpll;
+ int (*device_init)(void);
+ int (*device_shutdown)(void);
+#define Xres min_xres
+#define Yres min_yres
+ u32 min_xres; /* Minimum horizontal resolution */
+ u32 max_xres; /* Maximum horizontal resolution */
+ u32 min_yres; /* Minimum vertical resolution */
+ u32 max_yres; /* Maximum vertical resolution */
+};
+
+/********************************************************************/
+/* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
+
+/* List of panels known to work with the AU1200 LCD controller.
+ * To add a new panel, enter the same specifications as the
+ * Generic_TFT one, and MAKE SURE that it doesn't conflicts
+ * with the controller restrictions. Restrictions are:
+ *
+ * STN color panels: max_bpp <= 12
+ * STN mono panels: max_bpp <= 4
+ * TFT panels: max_bpp <= 16
+ * max_xres <= 800
+ * max_yres <= 600
+ */
+static struct panel_settings known_lcd_panels[] =
+{
+ [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
+ .name = "QVGA_320x240",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(320) |
+ LCD_SCREEN_SY_N(240),
+ .mode_horztiming = 0x00c4623b,
+ .mode_verttiming = 0x00502814,
+ .mode_clkcontrol = 0x00020002, /* /4=24Mhz */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 320, 320,
+ 240, 240,
+ },
+
+ [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
+ .name = "VGA_640x480",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x13f9df80,
+ .mode_horztiming = 0x003c5859,
+ .mode_verttiming = 0x00741201,
+ .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 640, 480,
+ 640, 480,
+ },
+
+ [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
+ .name = "SVGA_800x600",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x18fa5780,
+ .mode_horztiming = 0x00dc7e77,
+ .mode_verttiming = 0x00584805,
+ .mode_clkcontrol = 0x00020000, /* /2=48Mhz */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 800, 800,
+ 600, 600,
+ },
+
+ [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
+ .name = "XVGA_1024x768",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x1ffaff80,
+ .mode_horztiming = 0x007d0e57,
+ .mode_verttiming = 0x00740a01,
+ .mode_clkcontrol = 0x000A0000, /* /1 */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 6, /* 72MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 1024, 1024,
+ 768, 768,
+ },
+
+ [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
+ .name = "XVGA_1280x1024",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x27fbff80,
+ .mode_horztiming = 0x00cdb2c7,
+ .mode_verttiming = 0x00600002,
+ .mode_clkcontrol = 0x000A0000, /* /1 */
+ .mode_pwmdiv = 0x00000000,
+ .mode_pwmhi = 0x00000000,
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 10, /* 120MHz AUXPLL */
+ .device_init = NULL,
+ .device_shutdown = NULL,
+ 1280, 1280,
+ 1024, 1024,
+ },
+
+ [5] = { /* Samsung 1024x768 TFT */
+ .name = "Samsung_1024x768_TFT",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = 0x1ffaff80,
+ .mode_horztiming = 0x018cc677,
+ .mode_verttiming = 0x00241217,
+ .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */
+ .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */
+ .mode_pwmhi = 0x03400000, /* SCB 0x0 */
+ .mode_outmask = 0x00FFFFFF,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 1024, 1024,
+ 768, 768,
+ },
+
+ [6] = { /* Toshiba 640x480 TFT */
+ .name = "Toshiba_640x480_TFT",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(640) |
+ LCD_SCREEN_SY_N(480),
+ .mode_horztiming = LCD_HORZTIMING_HPW_N(96) |
+ LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
+ .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
+ LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
+ .mode_clkcontrol = 0x00000000, /* /4=24Mhz */
+ .mode_pwmdiv = 0x8000063f,
+ .mode_pwmhi = 0x03400000,
+ .mode_outmask = 0x00fcfcfc,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 640, 480,
+ 640, 480,
+ },
+
+ [7] = { /* Sharp 320x240 TFT */
+ .name = "Sharp_320x240_TFT",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 12500,
+ .hfmax = 20000,
+ .vfmin = 38,
+ .vfmax = 81,
+ .dclkmin = 4500000,
+ .dclkmax = 6800000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(320) |
+ LCD_SCREEN_SY_N(240),
+ .mode_horztiming = LCD_HORZTIMING_HPW_N(60) |
+ LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
+ .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
+ LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
+ .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
+ .mode_pwmdiv = 0x8000063f,
+ .mode_pwmhi = 0x03400000,
+ .mode_outmask = 0x00fcfcfc,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 320, 320,
+ 240, 240,
+ },
+
+ [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
+ .name = "Toppoly_TD070WGCB2",
+ .monspecs = {
+ .modedb = NULL,
+ .modedb_len = 0,
+ .hfmin = 30000,
+ .hfmax = 70000,
+ .vfmin = 60,
+ .vfmax = 60,
+ .dclkmin = 6000000,
+ .dclkmax = 28000000,
+ .input = FB_DISP_RGB,
+ },
+ .mode_screen = LCD_SCREEN_SX_N(856) |
+ LCD_SCREEN_SY_N(480),
+ .mode_horztiming = LCD_HORZTIMING_HND2_N(43) |
+ LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
+ .mode_verttiming = LCD_VERTTIMING_VND2_N(20) |
+ LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
+ .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
+ .mode_pwmdiv = 0x8000063f,
+ .mode_pwmhi = 0x03400000,
+ .mode_outmask = 0x00fcfcfc,
+ .mode_fifoctrl = 0x2f2f2f2f,
+ .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
+ .mode_backlight = 0x00000000,
+ .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .device_init = board_au1200fb_panel_init,
+ .device_shutdown = board_au1200fb_panel_shutdown,
+ 856, 856,
+ 480, 480,
+ },
+};
+
+#define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
+
+/********************************************************************/
+
+#ifdef CONFIG_PM
+static int set_brightness(unsigned int brightness)
+{
+ unsigned int hi1, divider;
+
+ /* limit brightness pwm duty to >= 30/1600 */
+ if (brightness < 30) {
+ brightness = 30;
+ }
+ divider = (lcd->pwmdiv & 0x3FFFF) + 1;
+ hi1 = (lcd->pwmhi >> 16) + 1;
+ hi1 = (((brightness & 0xFF) + 1) * divider >> 8);
+ lcd->pwmhi &= 0xFFFF;
+ lcd->pwmhi |= (hi1 << 16);
+
+ return brightness;
+}
+#endif /* CONFIG_PM */
+
+static int winbpp (unsigned int winctrl1)
+{
+ int bits = 0;
+
+ /* how many bits are needed for each pixel format */
+ switch (winctrl1 & LCD_WINCTRL1_FRM) {
+ case LCD_WINCTRL1_FRM_1BPP:
+ bits = 1;
+ break;
+ case LCD_WINCTRL1_FRM_2BPP:
+ bits = 2;
+ break;
+ case LCD_WINCTRL1_FRM_4BPP:
+ bits = 4;
+ break;
+ case LCD_WINCTRL1_FRM_8BPP:
+ bits = 8;
+ break;
+ case LCD_WINCTRL1_FRM_12BPP:
+ case LCD_WINCTRL1_FRM_16BPP655:
+ case LCD_WINCTRL1_FRM_16BPP565:
+ case LCD_WINCTRL1_FRM_16BPP556:
+ case LCD_WINCTRL1_FRM_16BPPI1555:
+ case LCD_WINCTRL1_FRM_16BPPI5551:
+ case LCD_WINCTRL1_FRM_16BPPA1555:
+ case LCD_WINCTRL1_FRM_16BPPA5551:
+ bits = 16;
+ break;
+ case LCD_WINCTRL1_FRM_24BPP:
+ case LCD_WINCTRL1_FRM_32BPP:
+ bits = 32;
+ break;
+ }
+
+ return bits;
+}
+
+static int fbinfo2index (struct fb_info *fb_info)
+{
+ int i;
+
+ for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) {
+ if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info))
+ return i;
+ }
+ printk("au1200fb: ERROR: fbinfo2index failed!\n");
+ return -1;
+}
+
+static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
+ int xpos, int ypos)
+{
+ uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
+ int xsz, ysz;
+
+ /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
+
+ winctrl0 = lcd->window[plane].winctrl0;
+ winctrl1 = lcd->window[plane].winctrl1;
+ winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
+ winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
+
+ /* Check for off-screen adjustments */
+ xsz = win->w[plane].xres;
+ ysz = win->w[plane].yres;
+ if ((xpos + win->w[plane].xres) > panel->Xres) {
+ /* Off-screen to the right */
+ xsz = panel->Xres - xpos; /* off by 1 ??? */
+ /*printk("off screen right\n");*/
+ }
+
+ if ((ypos + win->w[plane].yres) > panel->Yres) {
+ /* Off-screen to the bottom */
+ ysz = panel->Yres - ypos; /* off by 1 ??? */
+ /*printk("off screen bottom\n");*/
+ }
+
+ if (xpos < 0) {
+ /* Off-screen to the left */
+ xsz = win->w[plane].xres + xpos;
+ fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
+ xpos = 0;
+ /*printk("off screen left\n");*/
+ }
+
+ if (ypos < 0) {
+ /* Off-screen to the top */
+ ysz = win->w[plane].yres + ypos;
+ /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
+ ypos = 0;
+ /*printk("off screen top\n");*/
+ }
+
+ /* record settings */
+ win->w[plane].xpos = xpos;
+ win->w[plane].ypos = ypos;
+
+ xsz -= 1;
+ ysz -= 1;
+ winctrl0 |= (xpos << 21);
+ winctrl0 |= (ypos << 10);
+ winctrl1 |= (xsz << 11);
+ winctrl1 |= (ysz << 0);
+
+ /* Disable the window while making changes, then restore WINEN */
+ winenable = lcd->winenable & (1 << plane);
+ au_sync();
+ lcd->winenable &= ~(1 << plane);
+ lcd->window[plane].winctrl0 = winctrl0;
+ lcd->window[plane].winctrl1 = winctrl1;
+ lcd->window[plane].winbuf0 =
+ lcd->window[plane].winbuf1 = fbdev->fb_phys;
+ lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
+ lcd->winenable |= winenable;
+ au_sync();
+
+ return 0;
+}
+
+static void au1200_setpanel (struct panel_settings *newpanel)
+{
+ /*
+ * Perform global setup/init of LCD controller
+ */
+ uint32 winenable;
+
+ /* Make sure all windows disabled */
+ winenable = lcd->winenable;
+ lcd->winenable = 0;
+ au_sync();
+ /*
+ * Ensure everything is disabled before reconfiguring
+ */
+ if (lcd->screen & LCD_SCREEN_SEN) {
+ /* Wait for vertical sync period */
+ lcd->intstatus = LCD_INT_SS;
+ while ((lcd->intstatus & LCD_INT_SS) == 0) {
+ au_sync();
+ }
+
+ lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
+
+ do {
+ lcd->intstatus = lcd->intstatus; /*clear interrupts*/
+ au_sync();
+ /*wait for controller to shut down*/
+ } while ((lcd->intstatus & LCD_INT_SD) == 0);
+
+ /* Call shutdown of current panel (if up) */
+ /* this must occur last, because if an external clock is driving
+ the controller, the clock cannot be turned off before first
+ shutting down the controller.
+ */
+ if (panel->device_shutdown != NULL)
+ panel->device_shutdown();
+ }
+
+ /* Newpanel == NULL indicates a shutdown operation only */
+ if (newpanel == NULL)
+ return;
+
+ panel = newpanel;
+
+ printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
+
+ /*
+ * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
+ */
+ if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
+ {
+ uint32 sys_clksrc;
+ au_writel(panel->mode_auxpll, SYS_AUXPLL);
+ sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
+ sys_clksrc |= panel->mode_toyclksrc;
+ au_writel(sys_clksrc, SYS_CLKSRC);
+ }
+
+ /*
+ * Configure panel timings
+ */
+ lcd->screen = panel->mode_screen;
+ lcd->horztiming = panel->mode_horztiming;
+ lcd->verttiming = panel->mode_verttiming;
+ lcd->clkcontrol = panel->mode_clkcontrol;
+ lcd->pwmdiv = panel->mode_pwmdiv;
+ lcd->pwmhi = panel->mode_pwmhi;
+ lcd->outmask = panel->mode_outmask;
+ lcd->fifoctrl = panel->mode_fifoctrl;
+ au_sync();
+
+ /* fixme: Check window settings to make sure still valid
+ * for new geometry */
+#if 0
+ au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
+ au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
+ au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
+ au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
+#endif
+ lcd->winenable = winenable;
+
+ /*
+ * Re-enable screen now that it is configured
+ */
+ lcd->screen |= LCD_SCREEN_SEN;
+ au_sync();
+
+ /* Call init of panel */
+ if (panel->device_init != NULL) panel->device_init();
+
+ /* FIX!!!! not appropriate on panel change!!! Global setup/init */
+ lcd->intenable = 0;
+ lcd->intstatus = ~0;
+ lcd->backcolor = win->mode_backcolor;
+
+ /* Setup Color Key - FIX!!! */
+ lcd->colorkey = win->mode_colorkey;
+ lcd->colorkeymsk = win->mode_colorkeymsk;
+
+ /* Setup HWCursor - FIX!!! Need to support this eventually */
+ lcd->hwc.cursorctrl = 0;
+ lcd->hwc.cursorpos = 0;
+ lcd->hwc.cursorcolor0 = 0;
+ lcd->hwc.cursorcolor1 = 0;
+ lcd->hwc.cursorcolor2 = 0;
+ lcd->hwc.cursorcolor3 = 0;
+
+
+#if 0
+#define D(X) printk("%25s: %08X\n", #X, X)
+ D(lcd->screen);
+ D(lcd->horztiming);
+ D(lcd->verttiming);
+ D(lcd->clkcontrol);
+ D(lcd->pwmdiv);
+ D(lcd->pwmhi);
+ D(lcd->outmask);
+ D(lcd->fifoctrl);
+ D(lcd->window[0].winctrl0);
+ D(lcd->window[0].winctrl1);
+ D(lcd->window[0].winctrl2);
+ D(lcd->window[0].winbuf0);
+ D(lcd->window[0].winbuf1);
+ D(lcd->window[0].winbufctrl);
+ D(lcd->window[1].winctrl0);
+ D(lcd->window[1].winctrl1);
+ D(lcd->window[1].winctrl2);
+ D(lcd->window[1].winbuf0);
+ D(lcd->window[1].winbuf1);
+ D(lcd->window[1].winbufctrl);
+ D(lcd->window[2].winctrl0);
+ D(lcd->window[2].winctrl1);
+ D(lcd->window[2].winctrl2);
+ D(lcd->window[2].winbuf0);
+ D(lcd->window[2].winbuf1);
+ D(lcd->window[2].winbufctrl);
+ D(lcd->window[3].winctrl0);
+ D(lcd->window[3].winctrl1);
+ D(lcd->window[3].winctrl2);
+ D(lcd->window[3].winbuf0);
+ D(lcd->window[3].winbuf1);
+ D(lcd->window[3].winbufctrl);
+ D(lcd->winenable);
+ D(lcd->intenable);
+ D(lcd->intstatus);
+ D(lcd->backcolor);
+ D(lcd->winenable);
+ D(lcd->colorkey);
+ D(lcd->colorkeymsk);
+ D(lcd->hwc.cursorctrl);
+ D(lcd->hwc.cursorpos);
+ D(lcd->hwc.cursorcolor0);
+ D(lcd->hwc.cursorcolor1);
+ D(lcd->hwc.cursorcolor2);
+ D(lcd->hwc.cursorcolor3);
+#endif
+}
+
+static void au1200_setmode(struct au1200fb_device *fbdev)
+{
+ int plane = fbdev->plane;
+ /* Window/plane setup */
+ lcd->window[plane].winctrl1 = ( 0
+ | LCD_WINCTRL1_PRI_N(plane)
+ | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
+ ) ;
+
+ au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
+
+ lcd->window[plane].winctrl2 = ( 0
+ | LCD_WINCTRL2_CKMODE_00
+ | LCD_WINCTRL2_DBM
+ | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length)
+ | LCD_WINCTRL2_SCX_1
+ | LCD_WINCTRL2_SCY_1
+ ) ;
+ lcd->winenable |= win->w[plane].mode_winenable;
+ au_sync();
+}
+
+
+/* Inline helpers */
+
+/*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
+/*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
+
+#define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
+
+/* Bitfields format supported by the controller. */
+static struct fb_bitfield rgb_bitfields[][4] = {
+ /* Red, Green, Blue, Transp */
+ [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
+ { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
+ { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
+ { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
+ { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
+ { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
+ { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
+
+ [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
+ { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
+
+ [LCD_WINCTRL1_FRM_24BPP >> 25] =
+ { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
+
+ [LCD_WINCTRL1_FRM_32BPP >> 25] =
+ { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* Helpers */
+
+static void au1200fb_update_fbinfo(struct fb_info *fbi)
+{
+ /* FIX!!!! This also needs to take the window pixel format into account!!! */
+
+ /* Update var-dependent FB info */
+ if (panel_is_color(panel)) {
+ if (fbi->var.bits_per_pixel <= 8) {
+ /* palettized */
+ fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ fbi->fix.line_length = fbi->var.xres_virtual /
+ (8/fbi->var.bits_per_pixel);
+ } else {
+ /* non-palettized */
+ fbi->fix.visual = FB_VISUAL_TRUECOLOR;
+ fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
+ }
+ } else {
+ /* mono FIX!!! mono 8 and 4 bits */
+ fbi->fix.visual = FB_VISUAL_MONO10;
+ fbi->fix.line_length = fbi->var.xres_virtual / 8;
+ }
+
+ fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
+ print_dbg("line length: %d\n", fbi->fix.line_length);
+ print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* AU1200 framebuffer driver */
+
+/* fb_check_var
+ * Validate var settings with hardware restrictions and modify it if necessary
+ */
+static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *fbi)
+{
+ struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
+ u32 pixclock;
+ int screen_size, plane;
+
+ plane = fbdev->plane;
+
+ /* Make sure that the mode respect all LCD controller and
+ * panel restrictions. */
+ var->xres = win->w[plane].xres;
+ var->yres = win->w[plane].yres;
+
+ /* No need for virtual resolution support */
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+
+ var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
+
+ screen_size = var->xres_virtual * var->yres_virtual;
+ if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
+ else screen_size /= (8/var->bits_per_pixel);
+
+ if (fbdev->fb_len < screen_size)
+ return -EINVAL; /* Virtual screen is to big, abort */
+
+ /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
+ /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
+ * clock can only be obtain by dividing this value by an even integer.
+ * Fallback to a slower pixel clock if necessary. */
+ pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
+ pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2));
+
+ if (AU1200_LCD_MAX_CLK % pixclock) {
+ int diff = AU1200_LCD_MAX_CLK % pixclock;
+ pixclock -= diff;
+ }
+
+ var->pixclock = KHZ2PICOS(pixclock/1000);
+#if 0
+ if (!panel_is_active(panel)) {
+ int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
+
+ if (!panel_is_color(panel)
+ && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
+ /* STN 8bit mono panel support is up to 6MHz pixclock */
+ var->pixclock = KHZ2PICOS(6000);
+ } else if (!pcd) {
+ /* Other STN panel support is up to 12MHz */
+ var->pixclock = KHZ2PICOS(12000);
+ }
+ }
+#endif
+ /* Set bitfield accordingly */
+ switch (var->bits_per_pixel) {
+ case 16:
+ {
+ /* 16bpp True color.
+ * These must be set to MATCH WINCTRL[FORM] */
+ int idx;
+ idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
+ var->red = rgb_bitfields[idx][0];
+ var->green = rgb_bitfields[idx][1];
+ var->blue = rgb_bitfields[idx][2];
+ var->transp = rgb_bitfields[idx][3];
+ break;
+ }
+
+ case 32:
+ {
+ /* 32bpp True color.
+ * These must be set to MATCH WINCTRL[FORM] */
+ int idx;
+ idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
+ var->red = rgb_bitfields[idx][0];
+ var->green = rgb_bitfields[idx][1];
+ var->blue = rgb_bitfields[idx][2];
+ var->transp = rgb_bitfields[idx][3];
+ break;
+ }
+ default:
+ print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* fb_set_par
+ * Set hardware with var settings. This will enable the controller with a
+ * specific mode, normally validated with the fb_check_var method
+ */
+static int au1200fb_fb_set_par(struct fb_info *fbi)
+{
+ struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
+
+ au1200fb_update_fbinfo(fbi);
+ au1200_setmode(fbdev);
+
+ return 0;
+}
+
+/* fb_setcolreg
+ * Set color in LCD palette.
+ */
+static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *fbi)
+{
+ volatile u32 *palette = lcd->palette;
+ u32 value;
+
+ if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
+ return -EINVAL;
+
+ if (fbi->var.grayscale) {
+ /* Convert color to grayscale */
+ red = green = blue =
+ (19595 * red + 38470 * green + 7471 * blue) >> 16;
+ }
+
+ if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
+ /* Place color in the pseudopalette */
+ if (regno > 16)
+ return -EINVAL;
+
+ palette = (u32*) fbi->pseudo_palette;
+
+ red >>= (16 - fbi->var.red.length);
+ green >>= (16 - fbi->var.green.length);
+ blue >>= (16 - fbi->var.blue.length);
+
+ value = (red << fbi->var.red.offset) |
+ (green << fbi->var.green.offset)|
+ (blue << fbi->var.blue.offset);
+ value &= 0xFFFF;
+
+ } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
+ /* COLOR TFT PALLETTIZED (use RGB 565) */
+ value = (red & 0xF800)|((green >> 5) &
+ 0x07E0)|((blue >> 11) & 0x001F);
+ value &= 0xFFFF;
+
+ } else if (0 /*panel_is_color(fbdev->panel)*/) {
+ /* COLOR STN MODE */
+ value = 0x1234;
+ value &= 0xFFF;
+ } else {
+ /* MONOCHROME MODE */
+ value = (green >> 12) & 0x000F;
+ value &= 0xF;
+ }
+
+ palette[regno] = value;
+
+ return 0;
+}
+
+/* fb_blank
+ * Blank the screen. Depending on the mode, the screen will be
+ * activated with the backlight color, or desactivated
+ */
+static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
+{
+ /* Short-circuit screen blanking */
+ if (noblanking)
+ return 0;
+
+ switch (blank_mode) {
+
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ /* printk("turn on panel\n"); */
+ au1200_setpanel(panel);
+ break;
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_POWERDOWN:
+ /* printk("turn off panel\n"); */
+ au1200_setpanel(NULL);
+ break;
+ default:
+ break;
+
+ }
+
+ /* FB_BLANK_NORMAL is a soft blank */
+ return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
+}
+
+/* fb_mmap
+ * Map video memory in user space. We don't use the generic fb_mmap
+ * method mainly to allow the use of the TLB streaming flag (CCA=6)
+ */
+static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+
+{
+ unsigned int len;
+ unsigned long start=0, off;
+ struct au1200fb_device *fbdev = (struct au1200fb_device *) info;
+
+#ifdef CONFIG_PM
+ au1xxx_pm_access(LCD_pm_dev);
+#endif
+
+ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
+ return -EINVAL;
+ }
+
+ start = fbdev->fb_phys & PAGE_MASK;
+ len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
+
+ off = vma->vm_pgoff << PAGE_SHIFT;
+
+ if ((vma->vm_end - vma->vm_start + off) > len) {
+ return -EINVAL;
+ }
+
+ off += start;
+ vma->vm_pgoff = off >> PAGE_SHIFT;
+
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
+
+ vma->vm_flags |= VM_IO;
+
+ return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot);
+
+ return 0;
+}
+
+static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
+{
+
+ unsigned int hi1, divider;
+
+ /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
+
+ if (pdata->flags & SCREEN_BACKCOLOR)
+ lcd->backcolor = pdata->backcolor;
+
+ if (pdata->flags & SCREEN_BRIGHTNESS) {
+
+ // limit brightness pwm duty to >= 30/1600
+ if (pdata->brightness < 30) {
+ pdata->brightness = 30;
+ }
+ divider = (lcd->pwmdiv & 0x3FFFF) + 1;
+ hi1 = (lcd->pwmhi >> 16) + 1;
+ hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
+ lcd->pwmhi &= 0xFFFF;
+ lcd->pwmhi |= (hi1 << 16);
+ }
+
+ if (pdata->flags & SCREEN_COLORKEY)
+ lcd->colorkey = pdata->colorkey;
+
+ if (pdata->flags & SCREEN_MASK)
+ lcd->colorkeymsk = pdata->mask;
+ au_sync();
+}
+
+static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
+{
+ unsigned int hi1, divider;
+
+ pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
+ pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
+
+ pdata->backcolor = lcd->backcolor;
+ pdata->colorkey = lcd->colorkey;
+ pdata->mask = lcd->colorkeymsk;
+
+ // brightness
+ hi1 = (lcd->pwmhi >> 16) + 1;
+ divider = (lcd->pwmdiv & 0x3FFFF) + 1;
+ pdata->brightness = ((hi1 << 8) / divider) - 1;
+ au_sync();
+}
+
+static void set_window(unsigned int plane,
+ struct au1200_lcd_window_regs_t *pdata)
+{
+ unsigned int val, bpp;
+
+ /* Window control register 0 */
+ if (pdata->flags & WIN_POSITION) {
+ val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
+ LCD_WINCTRL0_OY);
+ val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
+ val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
+ lcd->window[plane].winctrl0 = val;
+ }
+ if (pdata->flags & WIN_ALPHA_COLOR) {
+ val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
+ val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
+ lcd->window[plane].winctrl0 = val;
+ }
+ if (pdata->flags & WIN_ALPHA_MODE) {
+ val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
+ val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
+ lcd->window[plane].winctrl0 = val;
+ }
+
+ /* Window control register 1 */
+ if (pdata->flags & WIN_PRIORITY) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
+ val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_CHANNEL) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
+ val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_BUFFER_FORMAT) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
+ val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_COLOR_ORDER) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
+ val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_PIXEL_ORDER) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
+ val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
+ lcd->window[plane].winctrl1 = val;
+ }
+ if (pdata->flags & WIN_SIZE) {
+ val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
+ LCD_WINCTRL1_SZY);
+ val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
+ val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
+ lcd->window[plane].winctrl1 = val;
+ /* program buffer line width */
+ bpp = winbpp(val) / 8;
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
+ val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
+ lcd->window[plane].winctrl2 = val;
+ }
+
+ /* Window control register 2 */
+ if (pdata->flags & WIN_COLORKEY_MODE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
+ val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
+ lcd->window[plane].winctrl2 = val;
+ }
+ if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
+ val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
+ lcd->window[plane].winctrl2 = val;
+ }
+ if (pdata->flags & WIN_RAM_ARRAY_MODE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
+ val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
+ lcd->window[plane].winctrl2 = val;
+ }
+
+ /* Buffer line width programmed with WIN_SIZE */
+
+ if (pdata->flags & WIN_BUFFER_SCALE) {
+ val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
+ LCD_WINCTRL2_SCY);
+ val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
+ val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
+ lcd->window[plane].winctrl2 = val;
+ }
+
+ if (pdata->flags & WIN_ENABLE) {
+ val = lcd->winenable;
+ val &= ~(1<<plane);
+ val |= (pdata->enable & 1) << plane;
+ lcd->winenable = val;
+ }
+ au_sync();
+}
+
+static void get_window(unsigned int plane,
+ struct au1200_lcd_window_regs_t *pdata)
+{
+ /* Window control register 0 */
+ pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
+ pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
+ pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
+ pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
+
+ /* Window control register 1 */
+ pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
+ pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
+ pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
+ pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
+ pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
+ pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
+ pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
+
+ /* Window control register 2 */
+ pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
+ pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
+ pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
+
+ pdata->enable = (lcd->winenable >> plane) & 1;
+ au_sync();
+}
+
+static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ int plane;
+ int val;
+
+#ifdef CONFIG_PM
+ au1xxx_pm_access(LCD_pm_dev);
+#endif
+
+ plane = fbinfo2index(info);
+ print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
+
+ if (cmd == AU1200_LCD_FB_IOCTL) {
+ struct au1200_lcd_iodata_t iodata;
+
+ if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
+ return -EFAULT;
+
+ print_dbg("FB IOCTL called\n");
+
+ switch (iodata.subcmd) {
+ case AU1200_LCD_SET_SCREEN:
+ print_dbg("AU1200_LCD_SET_SCREEN\n");
+ set_global(cmd, &iodata.global);
+ break;
+
+ case AU1200_LCD_GET_SCREEN:
+ print_dbg("AU1200_LCD_GET_SCREEN\n");
+ get_global(cmd, &iodata.global);
+ break;
+
+ case AU1200_LCD_SET_WINDOW:
+ print_dbg("AU1200_LCD_SET_WINDOW\n");
+ set_window(plane, &iodata.window);
+ break;
+
+ case AU1200_LCD_GET_WINDOW:
+ print_dbg("AU1200_LCD_GET_WINDOW\n");
+ get_window(plane, &iodata.window);
+ break;
+
+ case AU1200_LCD_SET_PANEL:
+ print_dbg("AU1200_LCD_SET_PANEL\n");
+ if ((iodata.global.panel_choice >= 0) &&
+ (iodata.global.panel_choice <
+ NUM_PANELS))
+ {
+ struct panel_settings *newpanel;
+ panel_index = iodata.global.panel_choice;
+ newpanel = &known_lcd_panels[panel_index];
+ au1200_setpanel(newpanel);
+ }
+ break;
+
+ case AU1200_LCD_GET_PANEL:
+ print_dbg("AU1200_LCD_GET_PANEL\n");
+ iodata.global.panel_choice = panel_index;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
+ if (val) {
+ print_dbg("error: could not copy %d bytes\n", val);
+ return -EFAULT;
+ }
+ }
+
+ return 0;
+}
+
+
+static struct fb_ops au1200fb_fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = au1200fb_fb_check_var,
+ .fb_set_par = au1200fb_fb_set_par,
+ .fb_setcolreg = au1200fb_fb_setcolreg,
+ .fb_blank = au1200fb_fb_blank,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_sync = NULL,
+ .fb_ioctl = au1200fb_ioctl,
+ .fb_mmap = au1200fb_fb_mmap,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id, struct pt_regs *regs)
+{
+ /* Nothing to do for now, just clear any pending interrupt */
+ lcd->intstatus = lcd->intstatus;
+ au_sync();
+
+ return IRQ_HANDLED;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* AU1200 LCD device probe helpers */
+
+static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
+{
+ struct fb_info *fbi = &fbdev->fb_info;
+ int bpp;
+
+ memset(fbi, 0, sizeof(struct fb_info));
+ fbi->fbops = &au1200fb_fb_ops;
+
+ bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
+
+ /* Copy monitor specs from panel data */
+ /* fixme: we're setting up LCD controller windows, so these dont give a
+ damn as to what the monitor specs are (the panel itself does, but that
+ isnt done here...so maybe need a generic catchall monitor setting??? */
+ memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
+
+ /* We first try the user mode passed in argument. If that failed,
+ * or if no one has been specified, we default to the first mode of the
+ * panel list. Note that after this call, var data will be set */
+ if (!fb_find_mode(&fbi->var,
+ fbi,
+ NULL, /* drv_info.opt_mode, */
+ fbi->monspecs.modedb,
+ fbi->monspecs.modedb_len,
+ fbi->monspecs.modedb,
+ bpp)) {
+
+ print_err("Cannot find valid mode for panel %s", panel->name);
+ return -EFAULT;
+ }
+
+ fbi->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
+ if (!fbi->pseudo_palette) {
+ return -ENOMEM;
+ }
+ memset(fbi->pseudo_palette, 0, sizeof(u32) * 16);
+
+ if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
+ print_err("Fail to allocate colormap (%d entries)",
+ AU1200_LCD_NBR_PALETTE_ENTRIES);
+ kfree(fbi->pseudo_palette);
+ return -EFAULT;
+ }
+
+ strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
+ fbi->fix.smem_start = fbdev->fb_phys;
+ fbi->fix.smem_len = fbdev->fb_len;
+ fbi->fix.type = FB_TYPE_PACKED_PIXELS;
+ fbi->fix.xpanstep = 0;
+ fbi->fix.ypanstep = 0;
+ fbi->fix.mmio_start = 0;
+ fbi->fix.mmio_len = 0;
+ fbi->fix.accel = FB_ACCEL_NONE;
+
+ fbi->screen_base = (char __iomem *) fbdev->fb_mem;
+
+ au1200fb_update_fbinfo(fbi);
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* AU1200 LCD controller device driver */
+
+static int au1200fb_drv_probe(struct device *dev)
+{
+ struct au1200fb_device *fbdev;
+ unsigned long page;
+ int bpp, plane, ret;
+
+ if (!dev)
+ return -EINVAL;
+
+ for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
+ bpp = winbpp(win->w[plane].mode_winctrl1);
+ if (win->w[plane].xres == 0)
+ win->w[plane].xres = panel->Xres;
+ if (win->w[plane].yres == 0)
+ win->w[plane].yres = panel->Yres;
+
+ fbdev = &_au1200fb_devices[plane];
+ memset(fbdev, 0, sizeof(struct au1200fb_device));
+ fbdev->plane = plane;
+
+ /* Allocate the framebuffer to the maximum screen size */
+ fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
+
+ fbdev->fb_mem = dma_alloc_noncoherent(dev,
+ PAGE_ALIGN(fbdev->fb_len),
+ &fbdev->fb_phys, GFP_KERNEL);
+ if (!fbdev->fb_mem) {
+ print_err("fail to allocate frambuffer (size: %dK))",
+ fbdev->fb_len / 1024);
+ return -ENOMEM;
+ }
+
+ /*
+ * Set page reserved so that mmap will work. This is necessary
+ * since we'll be remapping normal memory.
+ */
+ for (page = (unsigned long)fbdev->fb_phys;
+ page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
+ fbdev->fb_len);
+ page += PAGE_SIZE) {
+ SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
+ }
+ print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
+ print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
+
+ /* Init FB data */
+ if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
+ goto failed;
+
+ /* Register new framebuffer */
+ if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {
+ print_err("cannot register new framebuffer");
+ goto failed;
+ }
+
+ au1200fb_fb_set_par(&fbdev->fb_info);
+
+#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
+ if (plane == 0)
+ if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {
+ /* Start display and show logo on boot */
+ fb_set_cmap(&fbdev->fb_info.cmap,
+ &fbdev->fb_info);
+
+ fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);
+ }
+#endif
+ }
+
+ /* Now hook interrupt too */
+ if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq,
+ SA_INTERRUPT | SA_SHIRQ, "lcd", (void *)dev)) < 0) {
+ print_err("fail to request interrupt line %d (err: %d)",
+ AU1200_LCD_INT, ret);
+ goto failed;
+ }
+
+ return 0;
+
+failed:
+ /* NOTE: This only does the current plane/window that failed; others are still active */
+ if (fbdev->fb_mem)
+ dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
+ fbdev->fb_mem, fbdev->fb_phys);
+ if (fbdev->fb_info.cmap.len != 0)
+ fb_dealloc_cmap(&fbdev->fb_info.cmap);
+ if (fbdev->fb_info.pseudo_palette)
+ kfree(fbdev->fb_info.pseudo_palette);
+ if (plane == 0)
+ free_irq(AU1200_LCD_INT, (void*)dev);
+ return ret;
+}
+
+static int au1200fb_drv_remove(struct device *dev)
+{
+ struct au1200fb_device *fbdev;
+ int plane;
+
+ if (!dev)
+ return -ENODEV;
+
+ /* Turn off the panel */
+ au1200_setpanel(NULL);
+
+ for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)
+ {
+ fbdev = &_au1200fb_devices[plane];
+
+ /* Clean up all probe data */
+ unregister_framebuffer(&fbdev->fb_info);
+ if (fbdev->fb_mem)
+ dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
+ fbdev->fb_mem, fbdev->fb_phys);
+ if (fbdev->fb_info.cmap.len != 0)
+ fb_dealloc_cmap(&fbdev->fb_info.cmap);
+ if (fbdev->fb_info.pseudo_palette)
+ kfree(fbdev->fb_info.pseudo_palette);
+ }
+
+ free_irq(AU1200_LCD_INT, (void *)dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int au1200fb_drv_suspend(struct device *dev, u32 state, u32 level)
+{
+ /* TODO */
+ return 0;
+}
+
+static int au1200fb_drv_resume(struct device *dev, u32 level)
+{
+ /* TODO */
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static struct device_driver au1200fb_driver = {
+ .name = "au1200-lcd",
+ .bus = &platform_bus_type,
+ .probe = au1200fb_drv_probe,
+ .remove = au1200fb_drv_remove,
+#ifdef CONFIG_PM
+ .suspend = au1200fb_drv_suspend,
+ .resume = au1200fb_drv_resume,
+#endif
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* Kernel driver */
+
+static void au1200fb_setup(void)
+{
+ char* options = NULL;
+ char* this_opt;
+ int num_panels = ARRAY_SIZE(known_lcd_panels);
+ int panel_idx = -1;
+
+ fb_get_options(DRIVER_NAME, &options);
+
+ if (options) {
+ while ((this_opt = strsep(&options,",")) != NULL) {
+ /* Panel option - can be panel name,
+ * "bs" for board-switch, or number/index */
+ if (!strncmp(this_opt, "panel:", 6)) {
+ int i;
+ long int li;
+ char *endptr;
+ this_opt += 6;
+ /* First check for index, which allows
+ * to short circuit this mess */
+ li = simple_strtol(this_opt, &endptr, 0);
+ if (*endptr == '\0') {
+ panel_idx = (int)li;
+ }
+ else if (strcmp(this_opt, "bs") == 0) {
+ extern int board_au1200fb_panel(void);
+ panel_idx = board_au1200fb_panel();
+ }
+
+ else
+ for (i = 0; i < num_panels; i++) {
+ if (!strcmp(this_opt, known_lcd_panels[i].name)) {
+ panel_idx = i;
+ break;
+ }
+ }
+
+ if ((panel_idx < 0) || (panel_idx >= num_panels)) {
+ print_warn("Panel %s not supported!", this_opt);
+ }
+ else
+ panel_index = panel_idx;
+ }
+
+ else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
+ nohwcursor = 1;
+ }
+
+ /* Unsupported option */
+ else {
+ print_warn("Unsupported option \"%s\"", this_opt);
+ }
+ }
+ }
+}
+
+#ifdef CONFIG_PM
+static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
+ au1xxx_request_t request, void *data) {
+ int retval = -1;
+ unsigned int d = 0;
+ unsigned int brightness = 0;
+
+ if (request == AU1XXX_PM_SLEEP) {
+ board_au1200fb_panel_shutdown();
+ }
+ else if (request == AU1XXX_PM_WAKEUP) {
+ if(dev->prev_state == SLEEP_STATE)
+ {
+ int plane;
+ au1200_setpanel(panel);
+ for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
+ struct au1200fb_device *fbdev;
+ fbdev = &_au1200fb_devices[plane];
+ au1200fb_fb_set_par(&fbdev->fb_info);
+ }
+ }
+
+ d = *((unsigned int*)data);
+ if(d <=10) brightness = 26;
+ else if(d<=20) brightness = 51;
+ else if(d<=30) brightness = 77;
+ else if(d<=40) brightness = 102;
+ else if(d<=50) brightness = 128;
+ else if(d<=60) brightness = 153;
+ else if(d<=70) brightness = 179;
+ else if(d<=80) brightness = 204;
+ else if(d<=90) brightness = 230;
+ else brightness = 255;
+ set_brightness(brightness);
+ } else if (request == AU1XXX_PM_GETSTATUS) {
+ return dev->cur_state;
+ } else if (request == AU1XXX_PM_ACCESS) {
+ if (dev->cur_state != SLEEP_STATE)
+ return retval;
+ else {
+ au1200_setpanel(panel);
+ }
+ } else if (request == AU1XXX_PM_IDLE) {
+ } else if (request == AU1XXX_PM_CLEANUP) {
+ }
+
+ return retval;
+}
+#endif
+
+static int __init au1200fb_init(void)
+{
+ print_info("" DRIVER_DESC "");
+
+ /* Setup driver with options */
+ au1200fb_setup();
+
+ /* Point to the panel selected */
+ panel = &known_lcd_panels[panel_index];
+ win = &windows[window_index];
+
+ printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
+ printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
+
+ /* Kickstart the panel, the framebuffers/windows come soon enough */
+ au1200_setpanel(panel);
+
+ #ifdef CONFIG_PM
+ LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);
+ if ( LCD_pm_dev == NULL)
+ printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");
+ else
+ printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");
+ #endif
+
+ return driver_register(&au1200fb_driver);
+}
+
+static void __exit au1200fb_cleanup(void)
+{
+ driver_unregister(&au1200fb_driver);
+}
+
+module_init(au1200fb_init);
+module_exit(au1200fb_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/au1200fb.h b/drivers/video/au1200fb.h
new file mode 100644
index 00000000000..e2672714d8d
--- /dev/null
+++ b/drivers/video/au1200fb.h
@@ -0,0 +1,572 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Hardware definitions for the Au1200 LCD controller
+ *
+ * Copyright 2004 AMD
+ * Author: AMD
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _AU1200LCD_H
+#define _AU1200LCD_H
+
+/********************************************************************/
+#define AU1200_LCD_ADDR 0xB5000000
+
+#define uint8 unsigned char
+#define uint32 unsigned int
+
+struct au1200_lcd {
+ volatile uint32 reserved0;
+ volatile uint32 screen;
+ volatile uint32 backcolor;
+ volatile uint32 horztiming;
+ volatile uint32 verttiming;
+ volatile uint32 clkcontrol;
+ volatile uint32 pwmdiv;
+ volatile uint32 pwmhi;
+ volatile uint32 reserved1;
+ volatile uint32 winenable;
+ volatile uint32 colorkey;
+ volatile uint32 colorkeymsk;
+ struct
+ {
+ volatile uint32 cursorctrl;
+ volatile uint32 cursorpos;
+ volatile uint32 cursorcolor0;
+ volatile uint32 cursorcolor1;
+ volatile uint32 cursorcolor2;
+ uint32 cursorcolor3;
+ } hwc;
+ volatile uint32 intstatus;
+ volatile uint32 intenable;
+ volatile uint32 outmask;
+ volatile uint32 fifoctrl;
+ uint32 reserved2[(0x0100-0x0058)/4];
+ struct
+ {
+ volatile uint32 winctrl0;
+ volatile uint32 winctrl1;
+ volatile uint32 winctrl2;
+ volatile uint32 winbuf0;
+ volatile uint32 winbuf1;
+ volatile uint32 winbufctrl;
+ uint32 winreserved0;
+ uint32 winreserved1;
+ } window[4];
+
+ uint32 reserved3[(0x0400-0x0180)/4];
+
+ volatile uint32 palette[(0x0800-0x0400)/4];
+
+ volatile uint8 cursorpattern[256];
+};
+
+/* lcd_screen */
+#define LCD_SCREEN_SEN (1<<31)
+#define LCD_SCREEN_SX (0x07FF<<19)
+#define LCD_SCREEN_SY (0x07FF<< 8)
+#define LCD_SCREEN_SWP (1<<7)
+#define LCD_SCREEN_SWD (1<<6)
+#define LCD_SCREEN_PT (7<<0)
+#define LCD_SCREEN_PT_TFT (0<<0)
+#define LCD_SCREEN_SX_N(WIDTH) ((WIDTH-1)<<19)
+#define LCD_SCREEN_SY_N(HEIGHT) ((HEIGHT-1)<<8)
+#define LCD_SCREEN_PT_CSTN (1<<0)
+#define LCD_SCREEN_PT_CDSTN (2<<0)
+#define LCD_SCREEN_PT_M8STN (3<<0)
+#define LCD_SCREEN_PT_M4STN (4<<0)
+
+/* lcd_backcolor */
+#define LCD_BACKCOLOR_SBGR (0xFF<<16)
+#define LCD_BACKCOLOR_SBGG (0xFF<<8)
+#define LCD_BACKCOLOR_SBGB (0xFF<<0)
+#define LCD_BACKCOLOR_SBGR_N(N) ((N)<<16)
+#define LCD_BACKCOLOR_SBGG_N(N) ((N)<<8)
+#define LCD_BACKCOLOR_SBGB_N(N) ((N)<<0)
+
+/* lcd_winenable */
+#define LCD_WINENABLE_WEN3 (1<<3)
+#define LCD_WINENABLE_WEN2 (1<<2)
+#define LCD_WINENABLE_WEN1 (1<<1)
+#define LCD_WINENABLE_WEN0 (1<<0)
+
+/* lcd_colorkey */
+#define LCD_COLORKEY_CKR (0xFF<<16)
+#define LCD_COLORKEY_CKG (0xFF<<8)
+#define LCD_COLORKEY_CKB (0xFF<<0)
+#define LCD_COLORKEY_CKR_N(N) ((N)<<16)
+#define LCD_COLORKEY_CKG_N(N) ((N)<<8)
+#define LCD_COLORKEY_CKB_N(N) ((N)<<0)
+
+/* lcd_colorkeymsk */
+#define LCD_COLORKEYMSK_CKMR (0xFF<<16)
+#define LCD_COLORKEYMSK_CKMG (0xFF<<8)
+#define LCD_COLORKEYMSK_CKMB (0xFF<<0)
+#define LCD_COLORKEYMSK_CKMR_N(N) ((N)<<16)
+#define LCD_COLORKEYMSK_CKMG_N(N) ((N)<<8)
+#define LCD_COLORKEYMSK_CKMB_N(N) ((N)<<0)
+
+/* lcd windows control 0 */
+#define LCD_WINCTRL0_OX (0x07FF<<21)
+#define LCD_WINCTRL0_OY (0x07FF<<10)
+#define LCD_WINCTRL0_A (0x00FF<<2)
+#define LCD_WINCTRL0_AEN (1<<1)
+#define LCD_WINCTRL0_OX_N(N) ((N)<<21)
+#define LCD_WINCTRL0_OY_N(N) ((N)<<10)
+#define LCD_WINCTRL0_A_N(N) ((N)<<2)
+
+/* lcd windows control 1 */
+#define LCD_WINCTRL1_PRI (3<<30)
+#define LCD_WINCTRL1_PIPE (1<<29)
+#define LCD_WINCTRL1_FRM (0xF<<25)
+#define LCD_WINCTRL1_CCO (1<<24)
+#define LCD_WINCTRL1_PO (3<<22)
+#define LCD_WINCTRL1_SZX (0x07FF<<11)
+#define LCD_WINCTRL1_SZY (0x07FF<<0)
+#define LCD_WINCTRL1_FRM_1BPP (0<<25)
+#define LCD_WINCTRL1_FRM_2BPP (1<<25)
+#define LCD_WINCTRL1_FRM_4BPP (2<<25)
+#define LCD_WINCTRL1_FRM_8BPP (3<<25)
+#define LCD_WINCTRL1_FRM_12BPP (4<<25)
+#define LCD_WINCTRL1_FRM_16BPP655 (5<<25)
+#define LCD_WINCTRL1_FRM_16BPP565 (6<<25)
+#define LCD_WINCTRL1_FRM_16BPP556 (7<<25)
+#define LCD_WINCTRL1_FRM_16BPPI1555 (8<<25)
+#define LCD_WINCTRL1_FRM_16BPPI5551 (9<<25)
+#define LCD_WINCTRL1_FRM_16BPPA1555 (10<<25)
+#define LCD_WINCTRL1_FRM_16BPPA5551 (11<<25)
+#define LCD_WINCTRL1_FRM_24BPP (12<<25)
+#define LCD_WINCTRL1_FRM_32BPP (13<<25)
+#define LCD_WINCTRL1_PRI_N(N) ((N)<<30)
+#define LCD_WINCTRL1_PO_00 (0<<22)
+#define LCD_WINCTRL1_PO_01 (1<<22)
+#define LCD_WINCTRL1_PO_10 (2<<22)
+#define LCD_WINCTRL1_PO_11 (3<<22)
+#define LCD_WINCTRL1_SZX_N(N) ((N-1)<<11)
+#define LCD_WINCTRL1_SZY_N(N) ((N-1)<<0)
+
+/* lcd windows control 2 */
+#define LCD_WINCTRL2_CKMODE (3<<24)
+#define LCD_WINCTRL2_DBM (1<<23)
+#define LCD_WINCTRL2_RAM (3<<21)
+#define LCD_WINCTRL2_BX (0x1FFF<<8)
+#define LCD_WINCTRL2_SCX (0xF<<4)
+#define LCD_WINCTRL2_SCY (0xF<<0)
+#define LCD_WINCTRL2_CKMODE_00 (0<<24)
+#define LCD_WINCTRL2_CKMODE_01 (1<<24)
+#define LCD_WINCTRL2_CKMODE_10 (2<<24)
+#define LCD_WINCTRL2_CKMODE_11 (3<<24)
+#define LCD_WINCTRL2_RAM_NONE (0<<21)
+#define LCD_WINCTRL2_RAM_PALETTE (1<<21)
+#define LCD_WINCTRL2_RAM_GAMMA (2<<21)
+#define LCD_WINCTRL2_RAM_BUFFER (3<<21)
+#define LCD_WINCTRL2_BX_N(N) ((N)<<8)
+#define LCD_WINCTRL2_SCX_1 (0<<4)
+#define LCD_WINCTRL2_SCX_2 (1<<4)
+#define LCD_WINCTRL2_SCX_4 (2<<4)
+#define LCD_WINCTRL2_SCY_1 (0<<0)
+#define LCD_WINCTRL2_SCY_2 (1<<0)
+#define LCD_WINCTRL2_SCY_4 (2<<0)
+
+/* lcd windows buffer control */
+#define LCD_WINBUFCTRL_DB (1<<1)
+#define LCD_WINBUFCTRL_DBN (1<<0)
+
+/* lcd_intstatus, lcd_intenable */
+#define LCD_INT_IFO (0xF<<14)
+#define LCD_INT_IFU (0xF<<10)
+#define LCD_INT_OFO (1<<9)
+#define LCD_INT_OFU (1<<8)
+#define LCD_INT_WAIT (1<<3)
+#define LCD_INT_SD (1<<2)
+#define LCD_INT_SA (1<<1)
+#define LCD_INT_SS (1<<0)
+
+/* lcd_horztiming */
+#define LCD_HORZTIMING_HND2 (0x1FF<<18)
+#define LCD_HORZTIMING_HND1 (0x1FF<<9)
+#define LCD_HORZTIMING_HPW (0x1FF<<0)
+#define LCD_HORZTIMING_HND2_N(N)(((N)-1)<<18)
+#define LCD_HORZTIMING_HND1_N(N)(((N)-1)<<9)
+#define LCD_HORZTIMING_HPW_N(N) (((N)-1)<<0)
+
+/* lcd_verttiming */
+#define LCD_VERTTIMING_VND2 (0x1FF<<18)
+#define LCD_VERTTIMING_VND1 (0x1FF<<9)
+#define LCD_VERTTIMING_VPW (0x1FF<<0)
+#define LCD_VERTTIMING_VND2_N(N)(((N)-1)<<18)
+#define LCD_VERTTIMING_VND1_N(N)(((N)-1)<<9)
+#define LCD_VERTTIMING_VPW_N(N) (((N)-1)<<0)
+
+/* lcd_clkcontrol */
+#define LCD_CLKCONTROL_EXT (1<<22)
+#define LCD_CLKCONTROL_DELAY (3<<20)
+#define LCD_CLKCONTROL_CDD (1<<19)
+#define LCD_CLKCONTROL_IB (1<<18)
+#define LCD_CLKCONTROL_IC (1<<17)
+#define LCD_CLKCONTROL_IH (1<<16)
+#define LCD_CLKCONTROL_IV (1<<15)
+#define LCD_CLKCONTROL_BF (0x1F<<10)
+#define LCD_CLKCONTROL_PCD (0x3FF<<0)
+#define LCD_CLKCONTROL_BF_N(N) (((N)-1)<<10)
+#define LCD_CLKCONTROL_PCD_N(N) ((N)<<0)
+
+/* lcd_pwmdiv */
+#define LCD_PWMDIV_EN (1<<31)
+#define LCD_PWMDIV_PWMDIV (0x1FFFF<<0)
+#define LCD_PWMDIV_PWMDIV_N(N) ((N)<<0)
+
+/* lcd_pwmhi */
+#define LCD_PWMHI_PWMHI1 (0xFFFF<<16)
+#define LCD_PWMHI_PWMHI0 (0xFFFF<<0)
+#define LCD_PWMHI_PWMHI1_N(N) ((N)<<16)
+#define LCD_PWMHI_PWMHI0_N(N) ((N)<<0)
+
+/* lcd_hwccon */
+#define LCD_HWCCON_EN (1<<0)
+
+/* lcd_cursorpos */
+#define LCD_CURSORPOS_HWCXOFF (0x1F<<27)
+#define LCD_CURSORPOS_HWCXPOS (0x07FF<<16)
+#define LCD_CURSORPOS_HWCYOFF (0x1F<<11)
+#define LCD_CURSORPOS_HWCYPOS (0x07FF<<0)
+#define LCD_CURSORPOS_HWCXOFF_N(N) ((N)<<27)
+#define LCD_CURSORPOS_HWCXPOS_N(N) ((N)<<16)
+#define LCD_CURSORPOS_HWCYOFF_N(N) ((N)<<11)
+#define LCD_CURSORPOS_HWCYPOS_N(N) ((N)<<0)
+
+/* lcd_cursorcolor */
+#define LCD_CURSORCOLOR_HWCA (0xFF<<24)
+#define LCD_CURSORCOLOR_HWCR (0xFF<<16)
+#define LCD_CURSORCOLOR_HWCG (0xFF<<8)
+#define LCD_CURSORCOLOR_HWCB (0xFF<<0)
+#define LCD_CURSORCOLOR_HWCA_N(N) ((N)<<24)
+#define LCD_CURSORCOLOR_HWCR_N(N) ((N)<<16)
+#define LCD_CURSORCOLOR_HWCG_N(N) ((N)<<8)
+#define LCD_CURSORCOLOR_HWCB_N(N) ((N)<<0)
+
+/* lcd_fifoctrl */
+#define LCD_FIFOCTRL_F3IF (1<<29)
+#define LCD_FIFOCTRL_F3REQ (0x1F<<24)
+#define LCD_FIFOCTRL_F2IF (1<<29)
+#define LCD_FIFOCTRL_F2REQ (0x1F<<16)
+#define LCD_FIFOCTRL_F1IF (1<<29)
+#define LCD_FIFOCTRL_F1REQ (0x1F<<8)
+#define LCD_FIFOCTRL_F0IF (1<<29)
+#define LCD_FIFOCTRL_F0REQ (0x1F<<0)
+#define LCD_FIFOCTRL_F3REQ_N(N) ((N-1)<<24)
+#define LCD_FIFOCTRL_F2REQ_N(N) ((N-1)<<16)
+#define LCD_FIFOCTRL_F1REQ_N(N) ((N-1)<<8)
+#define LCD_FIFOCTRL_F0REQ_N(N) ((N-1)<<0)
+
+/* lcd_outmask */
+#define LCD_OUTMASK_MASK (0x00FFFFFF)
+
+/********************************************************************/
+#endif /* _AU1200LCD_H */
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Hardware definitions for the Au1200 LCD controller
+ *
+ * Copyright 2004 AMD
+ * Author: AMD
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _AU1200LCD_H
+#define _AU1200LCD_H
+
+/********************************************************************/
+#define AU1200_LCD_ADDR 0xB5000000
+
+#define uint8 unsigned char
+#define uint32 unsigned int
+
+struct au1200_lcd {
+ volatile uint32 reserved0;
+ volatile uint32 screen;
+ volatile uint32 backcolor;
+ volatile uint32 horztiming;
+ volatile uint32 verttiming;
+ volatile uint32 clkcontrol;
+ volatile uint32 pwmdiv;
+ volatile uint32 pwmhi;
+ volatile uint32 reserved1;
+ volatile uint32 winenable;
+ volatile uint32 colorkey;
+ volatile uint32 colorkeymsk;
+ struct
+ {
+ volatile uint32 cursorctrl;
+ volatile uint32 cursorpos;
+ volatile uint32 cursorcolor0;
+ volatile uint32 cursorcolor1;
+ volatile uint32 cursorcolor2;
+ uint32 cursorcolor3;
+ } hwc;
+ volatile uint32 intstatus;
+ volatile uint32 intenable;
+ volatile uint32 outmask;
+ volatile uint32 fifoctrl;
+ uint32 reserved2[(0x0100-0x0058)/4];
+ struct
+ {
+ volatile uint32 winctrl0;
+ volatile uint32 winctrl1;
+ volatile uint32 winctrl2;
+ volatile uint32 winbuf0;
+ volatile uint32 winbuf1;
+ volatile uint32 winbufctrl;
+ uint32 winreserved0;
+ uint32 winreserved1;
+ } window[4];
+
+ uint32 reserved3[(0x0400-0x0180)/4];
+
+ volatile uint32 palette[(0x0800-0x0400)/4];
+
+ volatile uint8 cursorpattern[256];
+};
+
+/* lcd_screen */
+#define LCD_SCREEN_SEN (1<<31)
+#define LCD_SCREEN_SX (0x07FF<<19)
+#define LCD_SCREEN_SY (0x07FF<< 8)
+#define LCD_SCREEN_SWP (1<<7)
+#define LCD_SCREEN_SWD (1<<6)
+#define LCD_SCREEN_PT (7<<0)
+#define LCD_SCREEN_PT_TFT (0<<0)
+#define LCD_SCREEN_SX_N(WIDTH) ((WIDTH-1)<<19)
+#define LCD_SCREEN_SY_N(HEIGHT) ((HEIGHT-1)<<8)
+#define LCD_SCREEN_PT_CSTN (1<<0)
+#define LCD_SCREEN_PT_CDSTN (2<<0)
+#define LCD_SCREEN_PT_M8STN (3<<0)
+#define LCD_SCREEN_PT_M4STN (4<<0)
+
+/* lcd_backcolor */
+#define LCD_BACKCOLOR_SBGR (0xFF<<16)
+#define LCD_BACKCOLOR_SBGG (0xFF<<8)
+#define LCD_BACKCOLOR_SBGB (0xFF<<0)
+#define LCD_BACKCOLOR_SBGR_N(N) ((N)<<16)
+#define LCD_BACKCOLOR_SBGG_N(N) ((N)<<8)
+#define LCD_BACKCOLOR_SBGB_N(N) ((N)<<0)
+
+/* lcd_winenable */
+#define LCD_WINENABLE_WEN3 (1<<3)
+#define LCD_WINENABLE_WEN2 (1<<2)
+#define LCD_WINENABLE_WEN1 (1<<1)
+#define LCD_WINENABLE_WEN0 (1<<0)
+
+/* lcd_colorkey */
+#define LCD_COLORKEY_CKR (0xFF<<16)
+#define LCD_COLORKEY_CKG (0xFF<<8)
+#define LCD_COLORKEY_CKB (0xFF<<0)
+#define LCD_COLORKEY_CKR_N(N) ((N)<<16)
+#define LCD_COLORKEY_CKG_N(N) ((N)<<8)
+#define LCD_COLORKEY_CKB_N(N) ((N)<<0)
+
+/* lcd_colorkeymsk */
+#define LCD_COLORKEYMSK_CKMR (0xFF<<16)
+#define LCD_COLORKEYMSK_CKMG (0xFF<<8)
+#define LCD_COLORKEYMSK_CKMB (0xFF<<0)
+#define LCD_COLORKEYMSK_CKMR_N(N) ((N)<<16)
+#define LCD_COLORKEYMSK_CKMG_N(N) ((N)<<8)
+#define LCD_COLORKEYMSK_CKMB_N(N) ((N)<<0)
+
+/* lcd windows control 0 */
+#define LCD_WINCTRL0_OX (0x07FF<<21)
+#define LCD_WINCTRL0_OY (0x07FF<<10)
+#define LCD_WINCTRL0_A (0x00FF<<2)
+#define LCD_WINCTRL0_AEN (1<<1)
+#define LCD_WINCTRL0_OX_N(N) ((N)<<21)
+#define LCD_WINCTRL0_OY_N(N) ((N)<<10)
+#define LCD_WINCTRL0_A_N(N) ((N)<<2)
+
+/* lcd windows control 1 */
+#define LCD_WINCTRL1_PRI (3<<30)
+#define LCD_WINCTRL1_PIPE (1<<29)
+#define LCD_WINCTRL1_FRM (0xF<<25)
+#define LCD_WINCTRL1_CCO (1<<24)
+#define LCD_WINCTRL1_PO (3<<22)
+#define LCD_WINCTRL1_SZX (0x07FF<<11)
+#define LCD_WINCTRL1_SZY (0x07FF<<0)
+#define LCD_WINCTRL1_FRM_1BPP (0<<25)
+#define LCD_WINCTRL1_FRM_2BPP (1<<25)
+#define LCD_WINCTRL1_FRM_4BPP (2<<25)
+#define LCD_WINCTRL1_FRM_8BPP (3<<25)
+#define LCD_WINCTRL1_FRM_12BPP (4<<25)
+#define LCD_WINCTRL1_FRM_16BPP655 (5<<25)
+#define LCD_WINCTRL1_FRM_16BPP565 (6<<25)
+#define LCD_WINCTRL1_FRM_16BPP556 (7<<25)
+#define LCD_WINCTRL1_FRM_16BPPI1555 (8<<25)
+#define LCD_WINCTRL1_FRM_16BPPI5551 (9<<25)
+#define LCD_WINCTRL1_FRM_16BPPA1555 (10<<25)
+#define LCD_WINCTRL1_FRM_16BPPA5551 (11<<25)
+#define LCD_WINCTRL1_FRM_24BPP (12<<25)
+#define LCD_WINCTRL1_FRM_32BPP (13<<25)
+#define LCD_WINCTRL1_PRI_N(N) ((N)<<30)
+#define LCD_WINCTRL1_PO_00 (0<<22)
+#define LCD_WINCTRL1_PO_01 (1<<22)
+#define LCD_WINCTRL1_PO_10 (2<<22)
+#define LCD_WINCTRL1_PO_11 (3<<22)
+#define LCD_WINCTRL1_SZX_N(N) ((N-1)<<11)
+#define LCD_WINCTRL1_SZY_N(N) ((N-1)<<0)
+
+/* lcd windows control 2 */
+#define LCD_WINCTRL2_CKMODE (3<<24)
+#define LCD_WINCTRL2_DBM (1<<23)
+#define LCD_WINCTRL2_RAM (3<<21)
+#define LCD_WINCTRL2_BX (0x1FFF<<8)
+#define LCD_WINCTRL2_SCX (0xF<<4)
+#define LCD_WINCTRL2_SCY (0xF<<0)
+#define LCD_WINCTRL2_CKMODE_00 (0<<24)
+#define LCD_WINCTRL2_CKMODE_01 (1<<24)
+#define LCD_WINCTRL2_CKMODE_10 (2<<24)
+#define LCD_WINCTRL2_CKMODE_11 (3<<24)
+#define LCD_WINCTRL2_RAM_NONE (0<<21)
+#define LCD_WINCTRL2_RAM_PALETTE (1<<21)
+#define LCD_WINCTRL2_RAM_GAMMA (2<<21)
+#define LCD_WINCTRL2_RAM_BUFFER (3<<21)
+#define LCD_WINCTRL2_BX_N(N) ((N)<<8)
+#define LCD_WINCTRL2_SCX_1 (0<<4)
+#define LCD_WINCTRL2_SCX_2 (1<<4)
+#define LCD_WINCTRL2_SCX_4 (2<<4)
+#define LCD_WINCTRL2_SCY_1 (0<<0)
+#define LCD_WINCTRL2_SCY_2 (1<<0)
+#define LCD_WINCTRL2_SCY_4 (2<<0)
+
+/* lcd windows buffer control */
+#define LCD_WINBUFCTRL_DB (1<<1)
+#define LCD_WINBUFCTRL_DBN (1<<0)
+
+/* lcd_intstatus, lcd_intenable */
+#define LCD_INT_IFO (0xF<<14)
+#define LCD_INT_IFU (0xF<<10)
+#define LCD_INT_OFO (1<<9)
+#define LCD_INT_OFU (1<<8)
+#define LCD_INT_WAIT (1<<3)
+#define LCD_INT_SD (1<<2)
+#define LCD_INT_SA (1<<1)
+#define LCD_INT_SS (1<<0)
+
+/* lcd_horztiming */
+#define LCD_HORZTIMING_HND2 (0x1FF<<18)
+#define LCD_HORZTIMING_HND1 (0x1FF<<9)
+#define LCD_HORZTIMING_HPW (0x1FF<<0)
+#define LCD_HORZTIMING_HND2_N(N)(((N)-1)<<18)
+#define LCD_HORZTIMING_HND1_N(N)(((N)-1)<<9)
+#define LCD_HORZTIMING_HPW_N(N) (((N)-1)<<0)
+
+/* lcd_verttiming */
+#define LCD_VERTTIMING_VND2 (0x1FF<<18)
+#define LCD_VERTTIMING_VND1 (0x1FF<<9)
+#define LCD_VERTTIMING_VPW (0x1FF<<0)
+#define LCD_VERTTIMING_VND2_N(N)(((N)-1)<<18)
+#define LCD_VERTTIMING_VND1_N(N)(((N)-1)<<9)
+#define LCD_VERTTIMING_VPW_N(N) (((N)-1)<<0)
+
+/* lcd_clkcontrol */
+#define LCD_CLKCONTROL_EXT (1<<22)
+#define LCD_CLKCONTROL_DELAY (3<<20)
+#define LCD_CLKCONTROL_CDD (1<<19)
+#define LCD_CLKCONTROL_IB (1<<18)
+#define LCD_CLKCONTROL_IC (1<<17)
+#define LCD_CLKCONTROL_IH (1<<16)
+#define LCD_CLKCONTROL_IV (1<<15)
+#define LCD_CLKCONTROL_BF (0x1F<<10)
+#define LCD_CLKCONTROL_PCD (0x3FF<<0)
+#define LCD_CLKCONTROL_BF_N(N) (((N)-1)<<10)
+#define LCD_CLKCONTROL_PCD_N(N) ((N)<<0)
+
+/* lcd_pwmdiv */
+#define LCD_PWMDIV_EN (1<<31)
+#define LCD_PWMDIV_PWMDIV (0x1FFFF<<0)
+#define LCD_PWMDIV_PWMDIV_N(N) ((N)<<0)
+
+/* lcd_pwmhi */
+#define LCD_PWMHI_PWMHI1 (0xFFFF<<16)
+#define LCD_PWMHI_PWMHI0 (0xFFFF<<0)
+#define LCD_PWMHI_PWMHI1_N(N) ((N)<<16)
+#define LCD_PWMHI_PWMHI0_N(N) ((N)<<0)
+
+/* lcd_hwccon */
+#define LCD_HWCCON_EN (1<<0)
+
+/* lcd_cursorpos */
+#define LCD_CURSORPOS_HWCXOFF (0x1F<<27)
+#define LCD_CURSORPOS_HWCXPOS (0x07FF<<16)
+#define LCD_CURSORPOS_HWCYOFF (0x1F<<11)
+#define LCD_CURSORPOS_HWCYPOS (0x07FF<<0)
+#define LCD_CURSORPOS_HWCXOFF_N(N) ((N)<<27)
+#define LCD_CURSORPOS_HWCXPOS_N(N) ((N)<<16)
+#define LCD_CURSORPOS_HWCYOFF_N(N) ((N)<<11)
+#define LCD_CURSORPOS_HWCYPOS_N(N) ((N)<<0)
+
+/* lcd_cursorcolor */
+#define LCD_CURSORCOLOR_HWCA (0xFF<<24)
+#define LCD_CURSORCOLOR_HWCR (0xFF<<16)
+#define LCD_CURSORCOLOR_HWCG (0xFF<<8)
+#define LCD_CURSORCOLOR_HWCB (0xFF<<0)
+#define LCD_CURSORCOLOR_HWCA_N(N) ((N)<<24)
+#define LCD_CURSORCOLOR_HWCR_N(N) ((N)<<16)
+#define LCD_CURSORCOLOR_HWCG_N(N) ((N)<<8)
+#define LCD_CURSORCOLOR_HWCB_N(N) ((N)<<0)
+
+/* lcd_fifoctrl */
+#define LCD_FIFOCTRL_F3IF (1<<29)
+#define LCD_FIFOCTRL_F3REQ (0x1F<<24)
+#define LCD_FIFOCTRL_F2IF (1<<29)
+#define LCD_FIFOCTRL_F2REQ (0x1F<<16)
+#define LCD_FIFOCTRL_F1IF (1<<29)
+#define LCD_FIFOCTRL_F1REQ (0x1F<<8)
+#define LCD_FIFOCTRL_F0IF (1<<29)
+#define LCD_FIFOCTRL_F0REQ (0x1F<<0)
+#define LCD_FIFOCTRL_F3REQ_N(N) ((N-1)<<24)
+#define LCD_FIFOCTRL_F2REQ_N(N) ((N-1)<<16)
+#define LCD_FIFOCTRL_F1REQ_N(N) ((N-1)<<8)
+#define LCD_FIFOCTRL_F0REQ_N(N) ((N-1)<<0)
+
+/* lcd_outmask */
+#define LCD_OUTMASK_MASK (0x00FFFFFF)
+
+/********************************************************************/
+#endif /* _AU1200LCD_H */
diff --git a/drivers/video/chipsfb.c b/drivers/video/chipsfb.c
index bc061d4ec78..72ff6bf75e5 100644
--- a/drivers/video/chipsfb.c
+++ b/drivers/video/chipsfb.c
@@ -178,8 +178,6 @@ struct chips_init_reg {
unsigned char data;
};
-#define N_ELTS(x) (sizeof(x) / sizeof(x[0]))
-
static struct chips_init_reg chips_init_sr[] = {
{ 0x00, 0x03 },
{ 0x01, 0x01 },
@@ -287,18 +285,18 @@ static void __init chips_hw_init(void)
{
int i;
- for (i = 0; i < N_ELTS(chips_init_xr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_xr); ++i)
write_xr(chips_init_xr[i].addr, chips_init_xr[i].data);
outb(0x29, 0x3c2); /* set misc output reg */
- for (i = 0; i < N_ELTS(chips_init_sr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_sr); ++i)
write_sr(chips_init_sr[i].addr, chips_init_sr[i].data);
- for (i = 0; i < N_ELTS(chips_init_gr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_gr); ++i)
write_gr(chips_init_gr[i].addr, chips_init_gr[i].data);
- for (i = 0; i < N_ELTS(chips_init_ar); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_ar); ++i)
write_ar(chips_init_ar[i].addr, chips_init_ar[i].data);
- for (i = 0; i < N_ELTS(chips_init_cr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_cr); ++i)
write_cr(chips_init_cr[i].addr, chips_init_cr[i].data);
- for (i = 0; i < N_ELTS(chips_init_fr); ++i)
+ for (i = 0; i < ARRAY_SIZE(chips_init_fr); ++i)
write_fr(chips_init_fr[i].addr, chips_init_fr[i].data);
}
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 6ee449858a5..4444bef68fb 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -26,6 +26,30 @@ config VGA_CONSOLE
# fi
# fi
+config VGACON_SOFT_SCROLLBACK
+ bool "Enable Scrollback Buffer in System RAM"
+ depends on VGA_CONSOLE
+ default n
+ help
+ The scrollback buffer of the standard VGA console is located in
+ the VGA RAM. The size of this RAM is fixed and is quite small.
+ If you require a larger scrollback buffer, this can be placed in
+ System RAM which is dynamically allocated during intialization.
+ Placing the scrollback buffer in System RAM will slightly slow
+ down the console.
+
+ If you want this feature, say 'Y' here and enter the amount of
+ RAM to allocate for this buffer. If unsure, say 'N'.
+
+config VGACON_SOFT_SCROLLBACK_SIZE
+ int "Scrollback Buffer Size (in KB)"
+ depends on VGACON_SOFT_SCROLLBACK
+ default "64"
+ help
+ Enter the amount of System RAM to allocate for the scrollback
+ buffer. Each 64KB will give you approximately 16 80x25
+ screenfuls of scrollback buffer
+
config VIDEO_SELECT
bool "Video mode selection support"
depends on X86 && VGA_CONSOLE
diff --git a/drivers/video/console/fonts.c b/drivers/video/console/fonts.c
index 4fd07d9eca0..0cc1bfda76a 100644
--- a/drivers/video/console/fonts.c
+++ b/drivers/video/console/fonts.c
@@ -66,7 +66,7 @@ static const struct font_desc *fonts[] = {
#endif
};
-#define num_fonts (sizeof(fonts)/sizeof(*fonts))
+#define num_fonts ARRAY_SIZE(fonts)
#ifdef NO_FONTS
#error No fonts configured.
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 762c7a59314..e99fe30e568 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -149,7 +149,7 @@ static inline void newport_clear_lines(int ystart, int yend, int ci)
newport_clear_screen(0, ystart, 1280 + 63, yend, ci);
}
-void newport_reset(void)
+static void newport_reset(void)
{
unsigned short treg;
int i;
@@ -193,7 +193,7 @@ void newport_reset(void)
* calculate the actual screen size by reading
* the video timing out of the VC2
*/
-void newport_get_screensize(void)
+static void newport_get_screensize(void)
{
int i, cols;
unsigned short ventry, treg;
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 5a86978537d..d5a04b68c4d 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -93,7 +93,6 @@ static u8 vgacon_build_attr(struct vc_data *c, u8 color, u8 intensity,
static void vgacon_invert_region(struct vc_data *c, u16 * p, int count);
static unsigned long vgacon_uni_pagedir[2];
-
/* Description of the hardware situation */
static unsigned long vga_vram_base; /* Base of video memory */
static unsigned long vga_vram_end; /* End of video memory */
@@ -161,6 +160,201 @@ static inline void write_vga(unsigned char reg, unsigned int val)
spin_unlock_irqrestore(&vga_lock, flags);
}
+static inline void vga_set_mem_top(struct vc_data *c)
+{
+ write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2);
+}
+
+#ifdef CONFIG_VGACON_SOFT_SCROLLBACK
+#include <linux/bootmem.h>
+/* software scrollback */
+static void *vgacon_scrollback;
+static int vgacon_scrollback_tail;
+static int vgacon_scrollback_size;
+static int vgacon_scrollback_rows;
+static int vgacon_scrollback_cnt;
+static int vgacon_scrollback_cur;
+static int vgacon_scrollback_save;
+static int vgacon_scrollback_restore;
+
+static void vgacon_scrollback_init(int pitch)
+{
+ int rows = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024/pitch;
+
+ if (vgacon_scrollback) {
+ vgacon_scrollback_cnt = 0;
+ vgacon_scrollback_tail = 0;
+ vgacon_scrollback_cur = 0;
+ vgacon_scrollback_rows = rows - 1;
+ vgacon_scrollback_size = rows * pitch;
+ }
+}
+
+static void __init vgacon_scrollback_startup(void)
+{
+ vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE
+ * 1024);
+ vgacon_scrollback_init(vga_video_num_columns * 2);
+}
+
+static void vgacon_scrollback_update(struct vc_data *c, int t, int count)
+{
+ void *p;
+
+ if (!vgacon_scrollback_size || c->vc_num != fg_console)
+ return;
+
+ p = (void *) (c->vc_origin + t * c->vc_size_row);
+
+ while (count--) {
+ scr_memcpyw(vgacon_scrollback + vgacon_scrollback_tail,
+ p, c->vc_size_row);
+ vgacon_scrollback_cnt++;
+ p += c->vc_size_row;
+ vgacon_scrollback_tail += c->vc_size_row;
+
+ if (vgacon_scrollback_tail >= vgacon_scrollback_size)
+ vgacon_scrollback_tail = 0;
+
+ if (vgacon_scrollback_cnt > vgacon_scrollback_rows)
+ vgacon_scrollback_cnt = vgacon_scrollback_rows;
+
+ vgacon_scrollback_cur = vgacon_scrollback_cnt;
+ }
+}
+
+static void vgacon_restore_screen(struct vc_data *c)
+{
+ vgacon_scrollback_save = 0;
+
+ if (!vga_is_gfx && !vgacon_scrollback_restore) {
+ scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
+ c->vc_screenbuf_size > vga_vram_size ?
+ vga_vram_size : c->vc_screenbuf_size);
+ vgacon_scrollback_restore = 1;
+ vgacon_scrollback_cur = vgacon_scrollback_cnt;
+ }
+}
+
+static int vgacon_scrolldelta(struct vc_data *c, int lines)
+{
+ int start, end, count, soff, diff;
+ void *d, *s;
+
+ if (!lines) {
+ c->vc_visible_origin = c->vc_origin;
+ vga_set_mem_top(c);
+ return 1;
+ }
+
+ if (!vgacon_scrollback)
+ return 1;
+
+ if (!vgacon_scrollback_save) {
+ vgacon_cursor(c, CM_ERASE);
+ vgacon_save_screen(c);
+ vgacon_scrollback_save = 1;
+ }
+
+ vgacon_scrollback_restore = 0;
+ start = vgacon_scrollback_cur + lines;
+ end = start + abs(lines);
+
+ if (start < 0)
+ start = 0;
+
+ if (start > vgacon_scrollback_cnt)
+ start = vgacon_scrollback_cnt;
+
+ if (end < 0)
+ end = 0;
+
+ if (end > vgacon_scrollback_cnt)
+ end = vgacon_scrollback_cnt;
+
+ vgacon_scrollback_cur = start;
+ count = end - start;
+ soff = vgacon_scrollback_tail - ((vgacon_scrollback_cnt - end) *
+ c->vc_size_row);
+ soff -= count * c->vc_size_row;
+
+ if (soff < 0)
+ soff += vgacon_scrollback_size;
+
+ count = vgacon_scrollback_cnt - start;
+
+ if (count > c->vc_rows)
+ count = c->vc_rows;
+
+ diff = c->vc_rows - count;
+
+ d = (void *) c->vc_origin;
+ s = (void *) c->vc_screenbuf;
+
+ while (count--) {
+ scr_memcpyw(d, vgacon_scrollback + soff, c->vc_size_row);
+ d += c->vc_size_row;
+ soff += c->vc_size_row;
+
+ if (soff >= vgacon_scrollback_size)
+ soff = 0;
+ }
+
+ if (diff == c->vc_rows) {
+ vgacon_cursor(c, CM_MOVE);
+ } else {
+ while (diff--) {
+ scr_memcpyw(d, s, c->vc_size_row);
+ d += c->vc_size_row;
+ s += c->vc_size_row;
+ }
+ }
+
+ return 1;
+}
+#else
+#define vgacon_scrollback_startup(...) do { } while (0)
+#define vgacon_scrollback_init(...) do { } while (0)
+#define vgacon_scrollback_update(...) do { } while (0)
+
+static void vgacon_restore_screen(struct vc_data *c)
+{
+ if (c->vc_origin != c->vc_visible_origin)
+ vgacon_scrolldelta(c, 0);
+}
+
+static int vgacon_scrolldelta(struct vc_data *c, int lines)
+{
+ if (!lines) /* Turn scrollback off */
+ c->vc_visible_origin = c->vc_origin;
+ else {
+ int margin = c->vc_size_row * 4;
+ int ul, we, p, st;
+
+ if (vga_rolled_over >
+ (c->vc_scr_end - vga_vram_base) + margin) {
+ ul = c->vc_scr_end - vga_vram_base;
+ we = vga_rolled_over + c->vc_size_row;
+ } else {
+ ul = 0;
+ we = vga_vram_size;
+ }
+ p = (c->vc_visible_origin - vga_vram_base - ul + we) % we +
+ lines * c->vc_size_row;
+ st = (c->vc_origin - vga_vram_base - ul + we) % we;
+ if (st < 2 * margin)
+ margin = 0;
+ if (p < margin)
+ p = 0;
+ if (p > st - margin)
+ p = st;
+ c->vc_visible_origin = vga_vram_base + (p + ul) % we;
+ }
+ vga_set_mem_top(c);
+ return 1;
+}
+#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
+
static const char __init *vgacon_startup(void)
{
const char *display_desc = NULL;
@@ -330,7 +524,7 @@ static const char __init *vgacon_startup(void)
vgacon_xres = ORIG_VIDEO_COLS * VGA_FONTWIDTH;
vgacon_yres = vga_scan_lines;
-
+ vgacon_scrollback_startup();
return display_desc;
}
@@ -357,11 +551,6 @@ static void vgacon_init(struct vc_data *c, int init)
con_set_default_unimap(c);
}
-static inline void vga_set_mem_top(struct vc_data *c)
-{
- write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2);
-}
-
static void vgacon_deinit(struct vc_data *c)
{
/* When closing the last console, reset video origin */
@@ -433,29 +622,37 @@ static void vgacon_set_cursor_size(int xpos, int from, int to)
cursor_size_lastto = to;
spin_lock_irqsave(&vga_lock, flags);
- outb_p(0x0a, vga_video_port_reg); /* Cursor start */
- curs = inb_p(vga_video_port_val);
- outb_p(0x0b, vga_video_port_reg); /* Cursor end */
- cure = inb_p(vga_video_port_val);
+ if (vga_video_type >= VIDEO_TYPE_VGAC) {
+ outb_p(VGA_CRTC_CURSOR_START, vga_video_port_reg);
+ curs = inb_p(vga_video_port_val);
+ outb_p(VGA_CRTC_CURSOR_END, vga_video_port_reg);
+ cure = inb_p(vga_video_port_val);
+ } else {
+ curs = 0;
+ cure = 0;
+ }
curs = (curs & 0xc0) | from;
cure = (cure & 0xe0) | to;
- outb_p(0x0a, vga_video_port_reg); /* Cursor start */
+ outb_p(VGA_CRTC_CURSOR_START, vga_video_port_reg);
outb_p(curs, vga_video_port_val);
- outb_p(0x0b, vga_video_port_reg); /* Cursor end */
+ outb_p(VGA_CRTC_CURSOR_END, vga_video_port_reg);
outb_p(cure, vga_video_port_val);
spin_unlock_irqrestore(&vga_lock, flags);
}
static void vgacon_cursor(struct vc_data *c, int mode)
{
- if (c->vc_origin != c->vc_visible_origin)
- vgacon_scrolldelta(c, 0);
+ vgacon_restore_screen(c);
+
switch (mode) {
case CM_ERASE:
write_vga(14, (c->vc_pos - vga_vram_base) / 2);
- vgacon_set_cursor_size(c->vc_x, 31, 30);
+ if (vga_video_type >= VIDEO_TYPE_VGAC)
+ vgacon_set_cursor_size(c->vc_x, 31, 30);
+ else
+ vgacon_set_cursor_size(c->vc_x, 31, 31);
break;
case CM_MOVE:
@@ -493,7 +690,10 @@ static void vgacon_cursor(struct vc_data *c, int mode)
10 ? 1 : 2));
break;
case CUR_NONE:
- vgacon_set_cursor_size(c->vc_x, 31, 30);
+ if (vga_video_type >= VIDEO_TYPE_VGAC)
+ vgacon_set_cursor_size(c->vc_x, 31, 30);
+ else
+ vgacon_set_cursor_size(c->vc_x, 31, 31);
break;
default:
vgacon_set_cursor_size(c->vc_x, 1,
@@ -595,6 +795,7 @@ static int vgacon_switch(struct vc_data *c)
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
+ vgacon_scrollback_init(c->vc_size_row);
return 0; /* Redrawing not needed */
}
@@ -1062,37 +1263,6 @@ static int vgacon_resize(struct vc_data *c, unsigned int width,
return 0;
}
-static int vgacon_scrolldelta(struct vc_data *c, int lines)
-{
- if (!lines) /* Turn scrollback off */
- c->vc_visible_origin = c->vc_origin;
- else {
- int margin = c->vc_size_row * 4;
- int ul, we, p, st;
-
- if (vga_rolled_over >
- (c->vc_scr_end - vga_vram_base) + margin) {
- ul = c->vc_scr_end - vga_vram_base;
- we = vga_rolled_over + c->vc_size_row;
- } else {
- ul = 0;
- we = vga_vram_size;
- }
- p = (c->vc_visible_origin - vga_vram_base - ul + we) % we +
- lines * c->vc_size_row;
- st = (c->vc_origin - vga_vram_base - ul + we) % we;
- if (st < 2 * margin)
- margin = 0;
- if (p < margin)
- p = 0;
- if (p > st - margin)
- p = st;
- c->vc_visible_origin = vga_vram_base + (p + ul) % we;
- }
- vga_set_mem_top(c);
- return 1;
-}
-
static int vgacon_set_origin(struct vc_data *c)
{
if (vga_is_gfx || /* We don't play origin tricks in graphic modes */
@@ -1135,15 +1305,14 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
if (t || b != c->vc_rows || vga_is_gfx)
return 0;
- if (c->vc_origin != c->vc_visible_origin)
- vgacon_scrolldelta(c, 0);
-
if (!vga_hardscroll_enabled || lines >= c->vc_rows / 2)
return 0;
+ vgacon_restore_screen(c);
oldo = c->vc_origin;
delta = lines * c->vc_size_row;
if (dir == SM_UP) {
+ vgacon_scrollback_update(c, t, lines);
if (c->vc_scr_end + delta >= vga_vram_end) {
scr_memcpyw((u16 *) vga_vram_base,
(u16 *) (oldo + delta),
diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c
index c32a2a50bfa..1f98392a43b 100644
--- a/drivers/video/fbcmap.c
+++ b/drivers/video/fbcmap.c
@@ -85,7 +85,7 @@ static struct fb_cmap default_16_colors = {
* Allocates memory for a colormap @cmap. @len is the
* number of entries in the palette.
*
- * Returns -1 errno on error, or zero on success.
+ * Returns negative errno on error, or zero on success.
*
*/
@@ -116,7 +116,7 @@ int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp)
fail:
fb_dealloc_cmap(cmap);
- return -1;
+ return -ENOMEM;
}
/**
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 07d882b1439..b1a8dca7643 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -55,7 +55,7 @@
#define FBPIXMAPSIZE (1024 * 8)
-static struct notifier_block *fb_notifier_list;
+static BLOCKING_NOTIFIER_HEAD(fb_notifier_list);
struct fb_info *registered_fb[FB_MAX];
int num_registered_fb;
@@ -784,7 +784,7 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
event.info = info;
event.data = &mode1;
- ret = notifier_call_chain(&fb_notifier_list,
+ ret = blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_MODE_DELETE, &event);
}
@@ -830,8 +830,8 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
info->flags &= ~FBINFO_MISC_USEREVENT;
event.info = info;
- notifier_call_chain(&fb_notifier_list, evnt,
- &event);
+ blocking_notifier_call_chain(&fb_notifier_list,
+ evnt, &event);
}
}
}
@@ -854,7 +854,8 @@ fb_blank(struct fb_info *info, int blank)
event.info = info;
event.data = &blank;
- notifier_call_chain(&fb_notifier_list, FB_EVENT_BLANK, &event);
+ blocking_notifier_call_chain(&fb_notifier_list,
+ FB_EVENT_BLANK, &event);
}
return ret;
@@ -925,7 +926,7 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
con2fb.framebuffer = -1;
event.info = info;
event.data = &con2fb;
- notifier_call_chain(&fb_notifier_list,
+ blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_GET_CONSOLE_MAP, &event);
return copy_to_user(argp, &con2fb,
sizeof(con2fb)) ? -EFAULT : 0;
@@ -944,7 +945,7 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
return -EINVAL;
event.info = info;
event.data = &con2fb;
- return notifier_call_chain(&fb_notifier_list,
+ return blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_SET_CONSOLE_MAP,
&event);
case FBIOBLANK:
@@ -1324,7 +1325,7 @@ register_framebuffer(struct fb_info *fb_info)
devfs_mk_cdev(MKDEV(FB_MAJOR, i),
S_IFCHR | S_IRUGO | S_IWUGO, "fb/%d", i);
event.info = fb_info;
- notifier_call_chain(&fb_notifier_list,
+ blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_FB_REGISTERED, &event);
return 0;
}
@@ -1366,7 +1367,7 @@ unregister_framebuffer(struct fb_info *fb_info)
*/
int fb_register_client(struct notifier_block *nb)
{
- return notifier_chain_register(&fb_notifier_list, nb);
+ return blocking_notifier_chain_register(&fb_notifier_list, nb);
}
/**
@@ -1375,7 +1376,7 @@ int fb_register_client(struct notifier_block *nb)
*/
int fb_unregister_client(struct notifier_block *nb)
{
- return notifier_chain_unregister(&fb_notifier_list, nb);
+ return blocking_notifier_chain_unregister(&fb_notifier_list, nb);
}
/**
@@ -1393,11 +1394,13 @@ void fb_set_suspend(struct fb_info *info, int state)
event.info = info;
if (state) {
- notifier_call_chain(&fb_notifier_list, FB_EVENT_SUSPEND, &event);
+ blocking_notifier_call_chain(&fb_notifier_list,
+ FB_EVENT_SUSPEND, &event);
info->state = FBINFO_STATE_SUSPENDED;
} else {
info->state = FBINFO_STATE_RUNNING;
- notifier_call_chain(&fb_notifier_list, FB_EVENT_RESUME, &event);
+ blocking_notifier_call_chain(&fb_notifier_list,
+ FB_EVENT_RESUME, &event);
}
}
@@ -1469,7 +1472,7 @@ int fb_new_modelist(struct fb_info *info)
if (!list_empty(&info->modelist)) {
event.info = info;
- err = notifier_call_chain(&fb_notifier_list,
+ err = blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_NEW_MODELIST,
&event);
}
@@ -1495,7 +1498,7 @@ int fb_con_duit(struct fb_info *info, int event, void *data)
evnt.info = info;
evnt.data = data;
- return notifier_call_chain(&fb_notifier_list, event, &evnt);
+ return blocking_notifier_call_chain(&fb_notifier_list, event, &evnt);
}
EXPORT_SYMBOL(fb_con_duit);
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 7c74e7325d9..53beeb4a999 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -1281,7 +1281,7 @@ int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info)
-EINVAL : 0;
}
-#if defined(__i386__)
+#if defined(CONFIG_FB_FIRMWARE_EDID) && defined(__i386__)
#include <linux/pci.h>
/*
@@ -1311,11 +1311,11 @@ const unsigned char *fb_firmware_edid(struct device *device)
{
return NULL;
}
-#endif /* _i386_ */
+#endif
+EXPORT_SYMBOL(fb_firmware_edid);
EXPORT_SYMBOL(fb_parse_edid);
EXPORT_SYMBOL(fb_edid_to_monspecs);
-EXPORT_SYMBOL(fb_firmware_edid);
EXPORT_SYMBOL(fb_get_mode);
EXPORT_SYMBOL(fb_validate_mode);
EXPORT_SYMBOL(fb_destroy_modedb);
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index 6d26057337e..b72b05250a9 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -348,7 +348,7 @@ static ssize_t store_cmap(struct class_device *class_device, const char *buf,
fb_copy_cmap(&umap, &fb_info->cmap);
fb_dealloc_cmap(&umap);
- return rc;
+ return rc ?: count;
}
for (i = 0; i < length; i++) {
u16 red, blue, green, tsp;
@@ -367,7 +367,7 @@ static ssize_t store_cmap(struct class_device *class_device, const char *buf,
if (transp)
fb_info->cmap.transp[i] = tsp;
}
- return 0;
+ return count;
}
static ssize_t show_cmap(struct class_device *class_device, char *buf)
diff --git a/drivers/video/geode/Kconfig b/drivers/video/geode/Kconfig
index 42fb9a89a79..4e173ef20a7 100644
--- a/drivers/video/geode/Kconfig
+++ b/drivers/video/geode/Kconfig
@@ -8,9 +8,24 @@ config FB_GEODE
Say 'Y' here to allow you to select framebuffer drivers for
the AMD Geode family of processors.
+config FB_GEODE_GX
+ tristate "AMD Geode GX framebuffer support (EXPERIMENTAL)"
+ depends on FB && FB_GEODE && EXPERIMENTAL
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ ---help---
+ Framebuffer driver for the display controller integrated into the
+ AMD Geode GX processors.
+
+ To compile this driver as a module, choose M here: the module will be
+ called gxfb.
+
+ If unsure, say N.
+
config FB_GEODE_GX1
tristate "AMD Geode GX1 framebuffer support (EXPERIMENTAL)"
- depends on FB_GEODE && EXPERIMENTAL
+ depends on FB && FB_GEODE && EXPERIMENTAL
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/geode/Makefile b/drivers/video/geode/Makefile
index 13ad501ea99..f896565bc31 100644
--- a/drivers/video/geode/Makefile
+++ b/drivers/video/geode/Makefile
@@ -1,5 +1,7 @@
# Makefile for the Geode family framebuffer drivers
obj-$(CONFIG_FB_GEODE_GX1) += gx1fb.o
+obj-$(CONFIG_FB_GEODE_GX) += gxfb.o
-gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o
+gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o
+gxfb-objs := gxfb_core.o display_gx.o video_gx.o
diff --git a/drivers/video/geode/display_gx.c b/drivers/video/geode/display_gx.c
new file mode 100644
index 00000000000..825c3405f5c
--- /dev/null
+++ b/drivers/video/geode/display_gx.c
@@ -0,0 +1,156 @@
+/*
+ * Geode GX display controller.
+ *
+ * Copyright (C) 2005 Arcom Control Systems Ltd.
+ *
+ * Portions from AMD's original 2.4 driver:
+ * Copyright (C) 2004 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by * the
+ * Free Software Foundation; either version 2 of the License, or * (at your
+ * option) any later version.
+ */
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/div64.h>
+#include <asm/delay.h>
+
+#include "geodefb.h"
+#include "display_gx.h"
+
+int gx_frame_buffer_size(void)
+{
+ /* Assuming 16 MiB. */
+ return 16*1024*1024;
+}
+
+int gx_line_delta(int xres, int bpp)
+{
+ /* Must be a multiple of 8 bytes. */
+ return (xres * (bpp >> 3) + 7) & ~0x7;
+}
+
+static void gx_set_mode(struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+ u32 gcfg, dcfg;
+ int hactive, hblankstart, hsyncstart, hsyncend, hblankend, htotal;
+ int vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal;
+
+ /* Unlock the display controller registers. */
+ readl(par->dc_regs + DC_UNLOCK);
+ writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK);
+
+ gcfg = readl(par->dc_regs + DC_GENERAL_CFG);
+ dcfg = readl(par->dc_regs + DC_DISPLAY_CFG);
+
+ /* Disable the timing generator. */
+ dcfg &= ~(DC_DCFG_TGEN);
+ writel(dcfg, par->dc_regs + DC_DISPLAY_CFG);
+
+ /* Wait for pending memory requests before disabling the FIFO load. */
+ udelay(100);
+
+ /* Disable FIFO load and compression. */
+ gcfg &= ~(DC_GCFG_DFLE | DC_GCFG_CMPE | DC_GCFG_DECE);
+ writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
+
+ /* Setup DCLK and its divisor. */
+ par->vid_ops->set_dclk(info);
+
+ /*
+ * Setup new mode.
+ */
+
+ /* Clear all unused feature bits. */
+ gcfg &= DC_GCFG_YUVM | DC_GCFG_VDSE;
+ dcfg = 0;
+
+ /* Set FIFO priority (default 6/5) and enable. */
+ /* FIXME: increase fifo priority for 1280x1024 and higher modes? */
+ gcfg |= (6 << DC_GCFG_DFHPEL_POS) | (5 << DC_GCFG_DFHPSL_POS) | DC_GCFG_DFLE;
+
+ /* Framebuffer start offset. */
+ writel(0, par->dc_regs + DC_FB_ST_OFFSET);
+
+ /* Line delta and line buffer length. */
+ writel(info->fix.line_length >> 3, par->dc_regs + DC_GFX_PITCH);
+ writel(((info->var.xres * info->var.bits_per_pixel/8) >> 3) + 2,
+ par->dc_regs + DC_LINE_SIZE);
+
+ /* Enable graphics and video data and unmask address lines. */
+ dcfg |= DC_DCFG_GDEN | DC_DCFG_VDEN | DC_DCFG_A20M | DC_DCFG_A18M;
+
+ /* Set pixel format. */
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ dcfg |= DC_DCFG_DISP_MODE_8BPP;
+ break;
+ case 16:
+ dcfg |= DC_DCFG_DISP_MODE_16BPP;
+ dcfg |= DC_DCFG_16BPP_MODE_565;
+ break;
+ case 32:
+ dcfg |= DC_DCFG_DISP_MODE_24BPP;
+ dcfg |= DC_DCFG_PALB;
+ break;
+ }
+
+ /* Enable timing generator. */
+ dcfg |= DC_DCFG_TGEN;
+
+ /* Horizontal and vertical timings. */
+ hactive = info->var.xres;
+ hblankstart = hactive;
+ hsyncstart = hblankstart + info->var.right_margin;
+ hsyncend = hsyncstart + info->var.hsync_len;
+ hblankend = hsyncend + info->var.left_margin;
+ htotal = hblankend;
+
+ vactive = info->var.yres;
+ vblankstart = vactive;
+ vsyncstart = vblankstart + info->var.lower_margin;
+ vsyncend = vsyncstart + info->var.vsync_len;
+ vblankend = vsyncend + info->var.upper_margin;
+ vtotal = vblankend;
+
+ writel((hactive - 1) | ((htotal - 1) << 16), par->dc_regs + DC_H_ACTIVE_TIMING);
+ writel((hblankstart - 1) | ((hblankend - 1) << 16), par->dc_regs + DC_H_BLANK_TIMING);
+ writel((hsyncstart - 1) | ((hsyncend - 1) << 16), par->dc_regs + DC_H_SYNC_TIMING);
+
+ writel((vactive - 1) | ((vtotal - 1) << 16), par->dc_regs + DC_V_ACTIVE_TIMING);
+ writel((vblankstart - 1) | ((vblankend - 1) << 16), par->dc_regs + DC_V_BLANK_TIMING);
+ writel((vsyncstart - 1) | ((vsyncend - 1) << 16), par->dc_regs + DC_V_SYNC_TIMING);
+
+ /* Write final register values. */
+ writel(dcfg, par->dc_regs + DC_DISPLAY_CFG);
+ writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
+
+ par->vid_ops->configure_display(info);
+
+ /* Relock display controller registers */
+ writel(0, par->dc_regs + DC_UNLOCK);
+}
+
+static void gx_set_hw_palette_reg(struct fb_info *info, unsigned regno,
+ unsigned red, unsigned green, unsigned blue)
+{
+ struct geodefb_par *par = info->par;
+ int val;
+
+ /* Hardware palette is in RGB 8-8-8 format. */
+ val = (red << 8) & 0xff0000;
+ val |= (green) & 0x00ff00;
+ val |= (blue >> 8) & 0x0000ff;
+
+ writel(regno, par->dc_regs + DC_PAL_ADDRESS);
+ writel(val, par->dc_regs + DC_PAL_DATA);
+}
+
+struct geode_dc_ops gx_dc_ops = {
+ .set_mode = gx_set_mode,
+ .set_palette_reg = gx_set_hw_palette_reg,
+};
diff --git a/drivers/video/geode/display_gx.h b/drivers/video/geode/display_gx.h
new file mode 100644
index 00000000000..86c62336130
--- /dev/null
+++ b/drivers/video/geode/display_gx.h
@@ -0,0 +1,96 @@
+/*
+ * Geode GX display controller
+ *
+ * Copyright (C) 2006 Arcom Control Systems Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __DISPLAY_GX_H__
+#define __DISPLAY_GX_H__
+
+int gx_frame_buffer_size(void);
+int gx_line_delta(int xres, int bpp);
+
+extern struct geode_dc_ops gx_dc_ops;
+
+/* Display controller registers */
+
+#define DC_UNLOCK 0x00
+# define DC_UNLOCK_CODE 0x00004758
+
+#define DC_GENERAL_CFG 0x04
+# define DC_GCFG_DFLE 0x00000001
+# define DC_GCFG_CURE 0x00000002
+# define DC_GCFG_ICNE 0x00000004
+# define DC_GCFG_VIDE 0x00000008
+# define DC_GCFG_CMPE 0x00000020
+# define DC_GCFG_DECE 0x00000040
+# define DC_GCFG_VGAE 0x00000080
+# define DC_GCFG_DFHPSL_MASK 0x00000F00
+# define DC_GCFG_DFHPSL_POS 8
+# define DC_GCFG_DFHPEL_MASK 0x0000F000
+# define DC_GCFG_DFHPEL_POS 12
+# define DC_GCFG_STFM 0x00010000
+# define DC_GCFG_FDTY 0x00020000
+# define DC_GCFG_VGAFT 0x00040000
+# define DC_GCFG_VDSE 0x00080000
+# define DC_GCFG_YUVM 0x00100000
+# define DC_GCFG_VFSL 0x00800000
+# define DC_GCFG_SIGE 0x01000000
+# define DC_GCFG_SGRE 0x02000000
+# define DC_GCFG_SGFR 0x04000000
+# define DC_GCFG_CRC_MODE 0x08000000
+# define DC_GCFG_DIAG 0x10000000
+# define DC_GCFG_CFRW 0x20000000
+
+#define DC_DISPLAY_CFG 0x08
+# define DC_DCFG_TGEN 0x00000001
+# define DC_DCFG_GDEN 0x00000008
+# define DC_DCFG_VDEN 0x00000010
+# define DC_DCFG_TRUP 0x00000040
+# define DC_DCFG_DISP_MODE_MASK 0x00000300
+# define DC_DCFG_DISP_MODE_8BPP 0x00000000
+# define DC_DCFG_DISP_MODE_16BPP 0x00000100
+# define DC_DCFG_DISP_MODE_24BPP 0x00000200
+# define DC_DCFG_16BPP_MODE_MASK 0x00000c00
+# define DC_DCFG_16BPP_MODE_565 0x00000000
+# define DC_DCFG_16BPP_MODE_555 0x00000100
+# define DC_DCFG_16BPP_MODE_444 0x00000200
+# define DC_DCFG_DCEN 0x00080000
+# define DC_DCFG_PALB 0x02000000
+# define DC_DCFG_FRLK 0x04000000
+# define DC_DCFG_VISL 0x08000000
+# define DC_DCFG_FRSL 0x20000000
+# define DC_DCFG_A18M 0x40000000
+# define DC_DCFG_A20M 0x80000000
+
+#define DC_FB_ST_OFFSET 0x10
+
+#define DC_LINE_SIZE 0x30
+# define DC_LINE_SIZE_FB_LINE_SIZE_MASK 0x000007ff
+# define DC_LINE_SIZE_FB_LINE_SIZE_POS 0
+# define DC_LINE_SIZE_CB_LINE_SIZE_MASK 0x007f0000
+# define DC_LINE_SIZE_CB_LINE_SIZE_POS 16
+# define DC_LINE_SIZE_VID_LINE_SIZE_MASK 0xff000000
+# define DC_LINE_SIZE_VID_LINE_SIZE_POS 24
+
+#define DC_GFX_PITCH 0x34
+# define DC_GFX_PITCH_FB_PITCH_MASK 0x0000ffff
+# define DC_GFX_PITCH_FB_PITCH_POS 0
+# define DC_GFX_PITCH_CB_PITCH_MASK 0xffff0000
+# define DC_GFX_PITCH_CB_PITCH_POS 16
+
+#define DC_H_ACTIVE_TIMING 0x40
+#define DC_H_BLANK_TIMING 0x44
+#define DC_H_SYNC_TIMING 0x48
+#define DC_V_ACTIVE_TIMING 0x50
+#define DC_V_BLANK_TIMING 0x54
+#define DC_V_SYNC_TIMING 0x58
+
+#define DC_PAL_ADDRESS 0x70
+#define DC_PAL_DATA 0x74
+
+#endif /* !__DISPLAY_GX1_H__ */
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
new file mode 100644
index 00000000000..89c34b15f5d
--- /dev/null
+++ b/drivers/video/geode/gxfb_core.c
@@ -0,0 +1,423 @@
+/*
+ * Geode GX framebuffer driver.
+ *
+ * Copyright (C) 2006 Arcom Control Systems Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ *
+ * This driver assumes that the BIOS has created a virtual PCI device header
+ * for the video device. The PCI header is assumed to contain the following
+ * BARs:
+ *
+ * BAR0 - framebuffer memory
+ * BAR1 - graphics processor registers
+ * BAR2 - display controller registers
+ * BAR3 - video processor and flat panel control registers.
+ *
+ * 16 MiB of framebuffer memory is assumed to be available.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include "geodefb.h"
+#include "display_gx.h"
+#include "video_gx.h"
+
+static char mode_option[32] = "640x480-16@60";
+
+/* Modes relevant to the GX (taken from modedb.c) */
+static const struct fb_videomode __initdata gx_modedb[] = {
+ /* 640x480-60 VESA */
+ { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 640x480-75 VESA */
+ { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 640x480-85 VESA */
+ { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 800x600-60 VESA */
+ { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 800x600-75 VESA */
+ { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 800x600-85 VESA */
+ { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1024x768-60 VESA */
+ { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1024x768-75 VESA */
+ { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1024x768-85 VESA */
+ { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x960-60 VESA */
+ { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x960-85 VESA */
+ { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x1024-60 VESA */
+ { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x1024-75 VESA */
+ { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x1024-85 VESA */
+ { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1600x1200-60 VESA */
+ { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1600x1200-75 VESA */
+ { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1600x1200-85 VESA */
+ { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+};
+
+static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ if (var->xres > 1600 || var->yres > 1200)
+ return -EINVAL;
+ if ((var->xres > 1280 || var->yres > 1024) && var->bits_per_pixel > 16)
+ return -EINVAL;
+
+ if (var->bits_per_pixel == 32) {
+ var->red.offset = 16; var->red.length = 8;
+ var->green.offset = 8; var->green.length = 8;
+ var->blue.offset = 0; var->blue.length = 8;
+ } else if (var->bits_per_pixel == 16) {
+ var->red.offset = 11; var->red.length = 5;
+ var->green.offset = 5; var->green.length = 6;
+ var->blue.offset = 0; var->blue.length = 5;
+ } else if (var->bits_per_pixel == 8) {
+ var->red.offset = 0; var->red.length = 8;
+ var->green.offset = 0; var->green.length = 8;
+ var->blue.offset = 0; var->blue.length = 8;
+ } else
+ return -EINVAL;
+ var->transp.offset = 0; var->transp.length = 0;
+
+ /* Enough video memory? */
+ if (gx_line_delta(var->xres, var->bits_per_pixel) * var->yres > info->fix.smem_len)
+ return -EINVAL;
+
+ /* FIXME: Check timing parameters here? */
+
+ return 0;
+}
+
+static int gxfb_set_par(struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+
+ if (info->var.bits_per_pixel > 8) {
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+ fb_dealloc_cmap(&info->cmap);
+ } else {
+ info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ fb_alloc_cmap(&info->cmap, 1<<info->var.bits_per_pixel, 0);
+ }
+
+ info->fix.line_length = gx_line_delta(info->var.xres, info->var.bits_per_pixel);
+
+ par->dc_ops->set_mode(info);
+
+ return 0;
+}
+
+static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int gxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+
+ if (info->var.grayscale) {
+ /* grayscale = 0.30*R + 0.59*G + 0.11*B */
+ red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
+ }
+
+ /* Truecolor has hardware independent palette */
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
+ u32 *pal = info->pseudo_palette;
+ u32 v;
+
+ if (regno >= 16)
+ return -EINVAL;
+
+ v = chan_to_field(red, &info->var.red);
+ v |= chan_to_field(green, &info->var.green);
+ v |= chan_to_field(blue, &info->var.blue);
+
+ pal[regno] = v;
+ } else {
+ if (regno >= 256)
+ return -EINVAL;
+
+ par->dc_ops->set_palette_reg(info, regno, red, green, blue);
+ }
+
+ return 0;
+}
+
+static int gxfb_blank(int blank_mode, struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+
+ return par->vid_ops->blank_display(info, blank_mode);
+}
+
+static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev)
+{
+ struct geodefb_par *par = info->par;
+ int fb_len;
+ int ret;
+
+ ret = pci_enable_device(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = pci_request_region(dev, 3, "gxfb (video processor)");
+ if (ret < 0)
+ return ret;
+ par->vid_regs = ioremap(pci_resource_start(dev, 3),
+ pci_resource_len(dev, 3));
+ if (!par->vid_regs)
+ return -ENOMEM;
+
+ ret = pci_request_region(dev, 2, "gxfb (display controller)");
+ if (ret < 0)
+ return ret;
+ par->dc_regs = ioremap(pci_resource_start(dev, 2), pci_resource_len(dev, 2));
+ if (!par->dc_regs)
+ return -ENOMEM;
+
+ ret = pci_request_region(dev, 0, "gxfb (framebuffer)");
+ if (ret < 0)
+ return ret;
+ if ((fb_len = gx_frame_buffer_size()) < 0)
+ return -ENOMEM;
+ info->fix.smem_start = pci_resource_start(dev, 0);
+ info->fix.smem_len = fb_len;
+ info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
+ if (!info->screen_base)
+ return -ENOMEM;
+
+ dev_info(&dev->dev, "%d Kibyte of video memory at 0x%lx\n",
+ info->fix.smem_len / 1024, info->fix.smem_start);
+
+ return 0;
+}
+
+static struct fb_ops gxfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = gxfb_check_var,
+ .fb_set_par = gxfb_set_par,
+ .fb_setcolreg = gxfb_setcolreg,
+ .fb_blank = gxfb_blank,
+ /* No HW acceleration for now. */
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+static struct fb_info * __init gxfb_init_fbinfo(struct device *dev)
+{
+ struct geodefb_par *par;
+ struct fb_info *info;
+
+ /* Alloc enough space for the pseudo palette. */
+ info = framebuffer_alloc(sizeof(struct geodefb_par) + sizeof(u32) * 16, dev);
+ if (!info)
+ return NULL;
+
+ par = info->par;
+
+ strcpy(info->fix.id, "Geode GX");
+
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.type_aux = 0;
+ info->fix.xpanstep = 0;
+ info->fix.ypanstep = 0;
+ info->fix.ywrapstep = 0;
+ info->fix.accel = FB_ACCEL_NONE;
+
+ info->var.nonstd = 0;
+ info->var.activate = FB_ACTIVATE_NOW;
+ info->var.height = -1;
+ info->var.width = -1;
+ info->var.accel_flags = 0;
+ info->var.vmode = FB_VMODE_NONINTERLACED;
+
+ info->fbops = &gxfb_ops;
+ info->flags = FBINFO_DEFAULT;
+ info->node = -1;
+
+ info->pseudo_palette = (void *)par + sizeof(struct geodefb_par);
+
+ info->var.grayscale = 0;
+
+ return info;
+}
+
+static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct geodefb_par *par;
+ struct fb_info *info;
+ int ret;
+
+ info = gxfb_init_fbinfo(&pdev->dev);
+ if (!info)
+ return -ENOMEM;
+ par = info->par;
+
+ /* GX display controller and GX video device. */
+ par->dc_ops = &gx_dc_ops;
+ par->vid_ops = &gx_vid_ops;
+
+ if ((ret = gxfb_map_video_memory(info, pdev)) < 0) {
+ dev_err(&pdev->dev, "failed to map frame buffer or controller registers\n");
+ goto err;
+ }
+
+ ret = fb_find_mode(&info->var, info, mode_option,
+ gx_modedb, ARRAY_SIZE(gx_modedb), NULL, 16);
+ if (ret == 0 || ret == 4) {
+ dev_err(&pdev->dev, "could not find valid video mode\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* Clear the frame buffer of garbage. */
+ memset_io(info->screen_base, 0, info->fix.smem_len);
+
+ gxfb_check_var(&info->var, info);
+ gxfb_set_par(info);
+
+ if (register_framebuffer(info) < 0) {
+ ret = -EINVAL;
+ goto err;
+ }
+ pci_set_drvdata(pdev, info);
+ printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id);
+ return 0;
+
+ err:
+ if (info->screen_base) {
+ iounmap(info->screen_base);
+ pci_release_region(pdev, 0);
+ }
+ if (par->vid_regs) {
+ iounmap(par->vid_regs);
+ pci_release_region(pdev, 3);
+ }
+ if (par->dc_regs) {
+ iounmap(par->dc_regs);
+ pci_release_region(pdev, 2);
+ }
+
+ pci_disable_device(pdev);
+
+ if (info)
+ framebuffer_release(info);
+ return ret;
+}
+
+static void gxfb_remove(struct pci_dev *pdev)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+ struct geodefb_par *par = info->par;
+
+ unregister_framebuffer(info);
+
+ iounmap((void __iomem *)info->screen_base);
+ pci_release_region(pdev, 0);
+
+ iounmap(par->vid_regs);
+ pci_release_region(pdev, 3);
+
+ iounmap(par->dc_regs);
+ pci_release_region(pdev, 2);
+
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ framebuffer_release(info);
+}
+
+static struct pci_device_id gxfb_id_table[] = {
+ { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_VIDEO,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
+ 0xff0000, 0 },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, gxfb_id_table);
+
+static struct pci_driver gxfb_driver = {
+ .name = "gxfb",
+ .id_table = gxfb_id_table,
+ .probe = gxfb_probe,
+ .remove = gxfb_remove,
+};
+
+static int __init gxfb_init(void)
+{
+#ifndef MODULE
+ if (fb_get_options("gxfb", NULL))
+ return -ENODEV;
+#endif
+ return pci_register_driver(&gxfb_driver);
+}
+
+static void __exit gxfb_cleanup(void)
+{
+ pci_unregister_driver(&gxfb_driver);
+}
+
+module_init(gxfb_init);
+module_exit(gxfb_cleanup);
+
+module_param_string(mode, mode_option, sizeof(mode_option), 0444);
+MODULE_PARM_DESC(mode, "video mode (<x>x<y>[-<bpp>][@<refr>])");
+
+MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode GX");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/geode/video_gx.c b/drivers/video/geode/video_gx.c
new file mode 100644
index 00000000000..2b2a7880ea7
--- /dev/null
+++ b/drivers/video/geode/video_gx.c
@@ -0,0 +1,262 @@
+/*
+ * Geode GX video processor device.
+ *
+ * Copyright (C) 2006 Arcom Control Systems Ltd.
+ *
+ * Portions from AMD's original 2.4 driver:
+ * Copyright (C) 2004 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/delay.h>
+#include <asm/msr.h>
+
+#include "geodefb.h"
+#include "video_gx.h"
+
+
+/*
+ * Tables of register settings for various DOTCLKs.
+ */
+struct gx_pll_entry {
+ long pixclock; /* ps */
+ u32 sys_rstpll_bits;
+ u32 dotpll_value;
+};
+
+#define POSTDIV3 ((u32)MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3)
+#define PREMULT2 ((u32)MSR_GLCP_SYS_RSTPLL_DOTPREMULT2)
+#define PREDIV2 ((u32)MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3)
+
+static const struct gx_pll_entry gx_pll_table_48MHz[] = {
+ { 40123, POSTDIV3, 0x00000BF2 }, /* 24.9230 */
+ { 39721, 0, 0x00000037 }, /* 25.1750 */
+ { 35308, POSTDIV3|PREMULT2, 0x00000B1A }, /* 28.3220 */
+ { 31746, POSTDIV3, 0x000002D2 }, /* 31.5000 */
+ { 27777, POSTDIV3|PREMULT2, 0x00000FE2 }, /* 36.0000 */
+ { 26666, POSTDIV3, 0x0000057A }, /* 37.5000 */
+ { 25000, POSTDIV3, 0x0000030A }, /* 40.0000 */
+ { 22271, 0, 0x00000063 }, /* 44.9000 */
+ { 20202, 0, 0x0000054B }, /* 49.5000 */
+ { 20000, 0, 0x0000026E }, /* 50.0000 */
+ { 19860, PREMULT2, 0x00000037 }, /* 50.3500 */
+ { 18518, POSTDIV3|PREMULT2, 0x00000B0D }, /* 54.0000 */
+ { 17777, 0, 0x00000577 }, /* 56.2500 */
+ { 17733, 0, 0x000007F7 }, /* 56.3916 */
+ { 17653, 0, 0x0000057B }, /* 56.6444 */
+ { 16949, PREMULT2, 0x00000707 }, /* 59.0000 */
+ { 15873, POSTDIV3|PREMULT2, 0x00000B39 }, /* 63.0000 */
+ { 15384, POSTDIV3|PREMULT2, 0x00000B45 }, /* 65.0000 */
+ { 14814, POSTDIV3|PREMULT2, 0x00000FC1 }, /* 67.5000 */
+ { 14124, POSTDIV3, 0x00000561 }, /* 70.8000 */
+ { 13888, POSTDIV3, 0x000007E1 }, /* 72.0000 */
+ { 13426, PREMULT2, 0x00000F4A }, /* 74.4810 */
+ { 13333, 0, 0x00000052 }, /* 75.0000 */
+ { 12698, 0, 0x00000056 }, /* 78.7500 */
+ { 12500, POSTDIV3|PREMULT2, 0x00000709 }, /* 80.0000 */
+ { 11135, PREMULT2, 0x00000262 }, /* 89.8000 */
+ { 10582, 0, 0x000002D2 }, /* 94.5000 */
+ { 10101, PREMULT2, 0x00000B4A }, /* 99.0000 */
+ { 10000, PREMULT2, 0x00000036 }, /* 100.0000 */
+ { 9259, 0, 0x000007E2 }, /* 108.0000 */
+ { 8888, 0, 0x000007F6 }, /* 112.5000 */
+ { 7692, POSTDIV3|PREMULT2, 0x00000FB0 }, /* 130.0000 */
+ { 7407, POSTDIV3|PREMULT2, 0x00000B50 }, /* 135.0000 */
+ { 6349, 0, 0x00000055 }, /* 157.5000 */
+ { 6172, 0, 0x000009C1 }, /* 162.0000 */
+ { 5787, PREMULT2, 0x0000002D }, /* 172.798 */
+ { 5698, 0, 0x000002C1 }, /* 175.5000 */
+ { 5291, 0, 0x000002D1 }, /* 189.0000 */
+ { 4938, 0, 0x00000551 }, /* 202.5000 */
+ { 4357, 0, 0x0000057D }, /* 229.5000 */
+};
+
+static const struct gx_pll_entry gx_pll_table_14MHz[] = {
+ { 39721, 0, 0x00000037 }, /* 25.1750 */
+ { 35308, 0, 0x00000B7B }, /* 28.3220 */
+ { 31746, 0, 0x000004D3 }, /* 31.5000 */
+ { 27777, 0, 0x00000BE3 }, /* 36.0000 */
+ { 26666, 0, 0x0000074F }, /* 37.5000 */
+ { 25000, 0, 0x0000050B }, /* 40.0000 */
+ { 22271, 0, 0x00000063 }, /* 44.9000 */
+ { 20202, 0, 0x0000054B }, /* 49.5000 */
+ { 20000, 0, 0x0000026E }, /* 50.0000 */
+ { 19860, 0, 0x000007C3 }, /* 50.3500 */
+ { 18518, 0, 0x000007E3 }, /* 54.0000 */
+ { 17777, 0, 0x00000577 }, /* 56.2500 */
+ { 17733, 0, 0x000002FB }, /* 56.3916 */
+ { 17653, 0, 0x0000057B }, /* 56.6444 */
+ { 16949, 0, 0x0000058B }, /* 59.0000 */
+ { 15873, 0, 0x0000095E }, /* 63.0000 */
+ { 15384, 0, 0x0000096A }, /* 65.0000 */
+ { 14814, 0, 0x00000BC2 }, /* 67.5000 */
+ { 14124, 0, 0x0000098A }, /* 70.8000 */
+ { 13888, 0, 0x00000BE2 }, /* 72.0000 */
+ { 13333, 0, 0x00000052 }, /* 75.0000 */
+ { 12698, 0, 0x00000056 }, /* 78.7500 */
+ { 12500, 0, 0x0000050A }, /* 80.0000 */
+ { 11135, 0, 0x0000078E }, /* 89.8000 */
+ { 10582, 0, 0x000002D2 }, /* 94.5000 */
+ { 10101, 0, 0x000011F6 }, /* 99.0000 */
+ { 10000, 0, 0x0000054E }, /* 100.0000 */
+ { 9259, 0, 0x000007E2 }, /* 108.0000 */
+ { 8888, 0, 0x000002FA }, /* 112.5000 */
+ { 7692, 0, 0x00000BB1 }, /* 130.0000 */
+ { 7407, 0, 0x00000975 }, /* 135.0000 */
+ { 6349, 0, 0x00000055 }, /* 157.5000 */
+ { 6172, 0, 0x000009C1 }, /* 162.0000 */
+ { 5698, 0, 0x000002C1 }, /* 175.5000 */
+ { 5291, 0, 0x00000539 }, /* 189.0000 */
+ { 4938, 0, 0x00000551 }, /* 202.5000 */
+ { 4357, 0, 0x0000057D }, /* 229.5000 */
+};
+
+static void gx_set_dclk_frequency(struct fb_info *info)
+{
+ const struct gx_pll_entry *pll_table;
+ int pll_table_len;
+ int i, best_i;
+ long min, diff;
+ u64 dotpll, sys_rstpll;
+ int timeout = 1000;
+
+ /* Rev. 1 Geode GXs use a 14 MHz reference clock instead of 48 MHz. */
+ if (cpu_data->x86_mask == 1) {
+ pll_table = gx_pll_table_14MHz;
+ pll_table_len = ARRAY_SIZE(gx_pll_table_14MHz);
+ } else {
+ pll_table = gx_pll_table_48MHz;
+ pll_table_len = ARRAY_SIZE(gx_pll_table_48MHz);
+ }
+
+ /* Search the table for the closest pixclock. */
+ best_i = 0;
+ min = abs(pll_table[0].pixclock - info->var.pixclock);
+ for (i = 1; i < pll_table_len; i++) {
+ diff = abs(pll_table[i].pixclock - info->var.pixclock);
+ if (diff < min) {
+ min = diff;
+ best_i = i;
+ }
+ }
+
+ rdmsrl(MSR_GLCP_SYS_RSTPLL, sys_rstpll);
+ rdmsrl(MSR_GLCP_DOTPLL, dotpll);
+
+ /* Program new M, N and P. */
+ dotpll &= 0x00000000ffffffffull;
+ dotpll |= (u64)pll_table[best_i].dotpll_value << 32;
+ dotpll |= MSR_GLCP_DOTPLL_DOTRESET;
+ dotpll &= ~MSR_GLCP_DOTPLL_BYPASS;
+
+ wrmsrl(MSR_GLCP_DOTPLL, dotpll);
+
+ /* Program dividers. */
+ sys_rstpll &= ~( MSR_GLCP_SYS_RSTPLL_DOTPREDIV2
+ | MSR_GLCP_SYS_RSTPLL_DOTPREMULT2
+ | MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3 );
+ sys_rstpll |= pll_table[best_i].sys_rstpll_bits;
+
+ wrmsrl(MSR_GLCP_SYS_RSTPLL, sys_rstpll);
+
+ /* Clear reset bit to start PLL. */
+ dotpll &= ~(MSR_GLCP_DOTPLL_DOTRESET);
+ wrmsrl(MSR_GLCP_DOTPLL, dotpll);
+
+ /* Wait for LOCK bit. */
+ do {
+ rdmsrl(MSR_GLCP_DOTPLL, dotpll);
+ } while (timeout-- && !(dotpll & MSR_GLCP_DOTPLL_LOCK));
+}
+
+static void gx_configure_display(struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+ u32 dcfg, fp_pm;
+
+ dcfg = readl(par->vid_regs + GX_DCFG);
+
+ /* Clear bits from existing mode. */
+ dcfg &= ~(GX_DCFG_CRT_SYNC_SKW_MASK
+ | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL
+ | GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN);
+
+ /* Set default sync skew. */
+ dcfg |= GX_DCFG_CRT_SYNC_SKW_DFLT;
+
+ /* Enable hsync and vsync. */
+ dcfg |= GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN;
+
+ /* Sync polarities. */
+ if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
+ dcfg |= GX_DCFG_CRT_HSYNC_POL;
+ if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
+ dcfg |= GX_DCFG_CRT_VSYNC_POL;
+
+ writel(dcfg, par->vid_regs + GX_DCFG);
+
+ /* Power on flat panel. */
+ fp_pm = readl(par->vid_regs + GX_FP_PM);
+ fp_pm |= GX_FP_PM_P;
+ writel(fp_pm, par->vid_regs + GX_FP_PM);
+}
+
+static int gx_blank_display(struct fb_info *info, int blank_mode)
+{
+ struct geodefb_par *par = info->par;
+ u32 dcfg, fp_pm;
+ int blank, hsync, vsync;
+
+ /* CRT power saving modes. */
+ switch (blank_mode) {
+ case FB_BLANK_UNBLANK:
+ blank = 0; hsync = 1; vsync = 1;
+ break;
+ case FB_BLANK_NORMAL:
+ blank = 1; hsync = 1; vsync = 1;
+ break;
+ case FB_BLANK_VSYNC_SUSPEND:
+ blank = 1; hsync = 1; vsync = 0;
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ blank = 1; hsync = 0; vsync = 1;
+ break;
+ case FB_BLANK_POWERDOWN:
+ blank = 1; hsync = 0; vsync = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ dcfg = readl(par->vid_regs + GX_DCFG);
+ dcfg &= ~(GX_DCFG_DAC_BL_EN
+ | GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN);
+ if (!blank)
+ dcfg |= GX_DCFG_DAC_BL_EN;
+ if (hsync)
+ dcfg |= GX_DCFG_HSYNC_EN;
+ if (vsync)
+ dcfg |= GX_DCFG_VSYNC_EN;
+ writel(dcfg, par->vid_regs + GX_DCFG);
+
+ /* Power on/off flat panel. */
+ fp_pm = readl(par->vid_regs + GX_FP_PM);
+ if (blank_mode == FB_BLANK_POWERDOWN)
+ fp_pm &= ~GX_FP_PM_P;
+ else
+ fp_pm |= GX_FP_PM_P;
+ writel(fp_pm, par->vid_regs + GX_FP_PM);
+
+ return 0;
+}
+
+struct geode_vid_ops gx_vid_ops = {
+ .set_dclk = gx_set_dclk_frequency,
+ .configure_display = gx_configure_display,
+ .blank_display = gx_blank_display,
+};
diff --git a/drivers/video/geode/video_gx.h b/drivers/video/geode/video_gx.h
new file mode 100644
index 00000000000..2d9211f3ed8
--- /dev/null
+++ b/drivers/video/geode/video_gx.h
@@ -0,0 +1,47 @@
+/*
+ * Geode GX video device
+ *
+ * Copyright (C) 2006 Arcom Control Systems Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __VIDEO_GX_H__
+#define __VIDEO_GX_H__
+
+extern struct geode_vid_ops gx_vid_ops;
+
+/* Geode GX video processor registers */
+
+#define GX_DCFG 0x0008
+# define GX_DCFG_CRT_EN 0x00000001
+# define GX_DCFG_HSYNC_EN 0x00000002
+# define GX_DCFG_VSYNC_EN 0x00000004
+# define GX_DCFG_DAC_BL_EN 0x00000008
+# define GX_DCFG_CRT_HSYNC_POL 0x00000100
+# define GX_DCFG_CRT_VSYNC_POL 0x00000200
+# define GX_DCFG_CRT_SYNC_SKW_MASK 0x0001C000
+# define GX_DCFG_CRT_SYNC_SKW_DFLT 0x00010000
+# define GX_DCFG_VG_CK 0x00100000
+# define GX_DCFG_GV_GAM 0x00200000
+# define GX_DCFG_DAC_VREF 0x04000000
+
+/* Geode GX flat panel display control registers */
+#define GX_FP_PM 0x410
+# define GX_FP_PM_P 0x01000000
+
+/* Geode GX clock control MSRs */
+
+#define MSR_GLCP_SYS_RSTPLL 0x4c000014
+# define MSR_GLCP_SYS_RSTPLL_DOTPREDIV2 (0x0000000000000002ull)
+# define MSR_GLCP_SYS_RSTPLL_DOTPREMULT2 (0x0000000000000004ull)
+# define MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3 (0x0000000000000008ull)
+
+#define MSR_GLCP_DOTPLL 0x4c000015
+# define MSR_GLCP_DOTPLL_DOTRESET (0x0000000000000001ull)
+# define MSR_GLCP_DOTPLL_BYPASS (0x0000000000008000ull)
+# define MSR_GLCP_DOTPLL_LOCK (0x0000000002000000ull)
+
+#endif /* !__VIDEO_GX_H__ */
diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c
index e3c8b5f1ca7..3fe3ae1aff1 100644
--- a/drivers/video/i810/i810-i2c.c
+++ b/drivers/video/i810/i810-i2c.c
@@ -210,8 +210,7 @@ int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, int conn)
}
}
- if (out_edid)
- *out_edid = edid;
+ *out_edid = edid;
return (edid) ? 0 : 1;
}
diff --git a/drivers/video/imsttfb.c b/drivers/video/imsttfb.c
index 7db42542eb1..f73c642b50c 100644
--- a/drivers/video/imsttfb.c
+++ b/drivers/video/imsttfb.c
@@ -440,9 +440,9 @@ getclkMHz(struct imstt_par *par)
static void
setclkMHz(struct imstt_par *par, __u32 MHz)
{
- __u32 clk_m, clk_n, clk_p, x, stage, spilled;
+ __u32 clk_m, clk_n, x, stage, spilled;
- clk_m = clk_n = clk_p = 0;
+ clk_m = clk_n = 0;
stage = spilled = 0;
for (;;) {
switch (stage) {
@@ -453,7 +453,7 @@ setclkMHz(struct imstt_par *par, __u32 MHz)
clk_n++;
break;
}
- x = 20 * (clk_m + 1) / ((clk_n + 1) * (clk_p ? 2 * clk_p : 1));
+ x = 20 * (clk_m + 1) / (clk_n + 1);
if (x == MHz)
break;
if (x > MHz) {
@@ -466,7 +466,7 @@ setclkMHz(struct imstt_par *par, __u32 MHz)
par->init.pclk_m = clk_m;
par->init.pclk_n = clk_n;
- par->init.pclk_p = clk_p;
+ par->init.pclk_p = 0;
}
static struct imstt_regvals *
@@ -1372,18 +1372,24 @@ init_imstt(struct fb_info *info)
write_reg_le32(par->dc_regs, STGCTL, tmp & ~0x1);
write_reg_le32(par->dc_regs, SSR, 0);
- /* set default values for DAC registers */
+ /* set default values for DAC registers */
if (par->ramdac == IBM) {
- par->cmap_regs[PPMASK] = 0xff; eieio();
- par->cmap_regs[PIDXHI] = 0; eieio();
- for (i = 0; i < sizeof(ibm_initregs) / sizeof(*ibm_initregs); i++) {
- par->cmap_regs[PIDXLO] = ibm_initregs[i].addr; eieio();
- par->cmap_regs[PIDXDATA] = ibm_initregs[i].value; eieio();
+ par->cmap_regs[PPMASK] = 0xff;
+ eieio();
+ par->cmap_regs[PIDXHI] = 0;
+ eieio();
+ for (i = 0; i < ARRAY_SIZE(ibm_initregs); i++) {
+ par->cmap_regs[PIDXLO] = ibm_initregs[i].addr;
+ eieio();
+ par->cmap_regs[PIDXDATA] = ibm_initregs[i].value;
+ eieio();
}
} else {
- for (i = 0; i < sizeof(tvp_initregs) / sizeof(*tvp_initregs); i++) {
- par->cmap_regs[TVPADDRW] = tvp_initregs[i].addr; eieio();
- par->cmap_regs[TVPIDATA] = tvp_initregs[i].value; eieio();
+ for (i = 0; i < ARRAY_SIZE(tvp_initregs); i++) {
+ par->cmap_regs[TVPADDRW] = tvp_initregs[i].addr;
+ eieio();
+ par->cmap_regs[TVPIDATA] = tvp_initregs[i].value;
+ eieio();
}
}
diff --git a/drivers/video/macmodes.c b/drivers/video/macmodes.c
index 2fc71081f7e..c0385c6f7db 100644
--- a/drivers/video/macmodes.c
+++ b/drivers/video/macmodes.c
@@ -380,7 +380,7 @@ int __init mac_find_mode(struct fb_var_screeninfo *var, struct fb_info *info,
if (mode_option && !strncmp(mode_option, "mac", 3)) {
mode_option += 3;
db = mac_modedb;
- dbsize = sizeof(mac_modedb)/sizeof(*mac_modedb);
+ dbsize = ARRAY_SIZE(mac_modedb);
}
return fb_find_mode(var, info, mode_option, db, dbsize,
&mac_modedb[DEFAULT_MODEDB_INDEX], default_bpp);
diff --git a/drivers/video/matrox/matroxfb_g450.c b/drivers/video/matrox/matroxfb_g450.c
index c122d8743dd..4d610b405d4 100644
--- a/drivers/video/matrox/matroxfb_g450.c
+++ b/drivers/video/matrox/matroxfb_g450.c
@@ -59,7 +59,7 @@ static const struct mctl g450_controls[] =
}, offsetof(struct matrox_fb_info, altout.tvo_params.testout) },
};
-#define G450CTRLS (sizeof(g450_controls)/sizeof(g450_controls[0]))
+#define G450CTRLS ARRAY_SIZE(g450_controls)
/* Return: positive number: id found
-EINVAL: id not found, return failure
diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c
index 6019710dc29..5d29a26b8cd 100644
--- a/drivers/video/matrox/matroxfb_maven.c
+++ b/drivers/video/matrox/matroxfb_maven.c
@@ -89,12 +89,12 @@ static const struct mctl maven_controls[] =
}, offsetof(struct matrox_fb_info, altout.tvo_params.hue) },
{ { V4L2_CID_GAMMA, V4L2_CTRL_TYPE_INTEGER,
"gamma",
- 0, sizeof(maven_gamma)/sizeof(maven_gamma[0])-1, 1, 3,
+ 0, ARRAY_SIZE(maven_gamma) - 1, 1, 3,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.gamma) },
{ { MATROXFB_CID_TESTOUT, V4L2_CTRL_TYPE_BOOLEAN,
"test output",
- 0, 1, 1, 0,
+ 0, 1, 1, 0,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.testout) },
{ { MATROXFB_CID_DEFLICKER, V4L2_CTRL_TYPE_INTEGER,
@@ -105,7 +105,7 @@ static const struct mctl maven_controls[] =
};
-#define MAVCTRLS (sizeof(maven_controls)/sizeof(maven_controls[0]))
+#define MAVCTRLS ARRAY_SIZE(maven_controls)
/* Return: positive number: id found
-EINVAL: id not found, return failure
@@ -129,7 +129,7 @@ static int get_ctrl_id(__u32 v4l2_id) {
struct maven_data {
struct matrox_fb_info* primary_head;
- struct i2c_client* client;
+ struct i2c_client client;
int version;
};
@@ -970,7 +970,7 @@ static inline int maven_compute_timming(struct maven_data* md,
static int maven_program_timming(struct maven_data* md,
const struct mavenregs* m) {
- struct i2c_client* c = md->client;
+ struct i2c_client* c = &md->client;
if (m->mode == MATROXFB_OUTPUT_MODE_MONITOR) {
LR(0x80);
@@ -1007,7 +1007,7 @@ static int maven_program_timming(struct maven_data* md,
}
static inline int maven_resync(struct maven_data* md) {
- struct i2c_client* c = md->client;
+ struct i2c_client* c = &md->client;
maven_set_reg(c, 0x95, 0x20); /* start whole thing */
return 0;
}
@@ -1065,48 +1065,48 @@ static int maven_set_control (struct maven_data* md,
maven_compute_bwlevel(md, &blacklevel, &whitelevel);
blacklevel = (blacklevel >> 2) | ((blacklevel & 3) << 8);
whitelevel = (whitelevel >> 2) | ((whitelevel & 3) << 8);
- maven_set_reg_pair(md->client, 0x0e, blacklevel);
- maven_set_reg_pair(md->client, 0x1e, whitelevel);
+ maven_set_reg_pair(&md->client, 0x0e, blacklevel);
+ maven_set_reg_pair(&md->client, 0x1e, whitelevel);
}
break;
case V4L2_CID_SATURATION:
{
- maven_set_reg(md->client, 0x20, p->value);
- maven_set_reg(md->client, 0x22, p->value);
+ maven_set_reg(&md->client, 0x20, p->value);
+ maven_set_reg(&md->client, 0x22, p->value);
}
break;
case V4L2_CID_HUE:
{
- maven_set_reg(md->client, 0x25, p->value);
+ maven_set_reg(&md->client, 0x25, p->value);
}
break;
case V4L2_CID_GAMMA:
{
const struct maven_gamma* g;
g = maven_compute_gamma(md);
- maven_set_reg(md->client, 0x83, g->reg83);
- maven_set_reg(md->client, 0x84, g->reg84);
- maven_set_reg(md->client, 0x85, g->reg85);
- maven_set_reg(md->client, 0x86, g->reg86);
- maven_set_reg(md->client, 0x87, g->reg87);
- maven_set_reg(md->client, 0x88, g->reg88);
- maven_set_reg(md->client, 0x89, g->reg89);
- maven_set_reg(md->client, 0x8a, g->reg8a);
- maven_set_reg(md->client, 0x8b, g->reg8b);
+ maven_set_reg(&md->client, 0x83, g->reg83);
+ maven_set_reg(&md->client, 0x84, g->reg84);
+ maven_set_reg(&md->client, 0x85, g->reg85);
+ maven_set_reg(&md->client, 0x86, g->reg86);
+ maven_set_reg(&md->client, 0x87, g->reg87);
+ maven_set_reg(&md->client, 0x88, g->reg88);
+ maven_set_reg(&md->client, 0x89, g->reg89);
+ maven_set_reg(&md->client, 0x8a, g->reg8a);
+ maven_set_reg(&md->client, 0x8b, g->reg8b);
}
break;
case MATROXFB_CID_TESTOUT:
{
unsigned char val
- = maven_get_reg (md->client,0x8d);
+ = maven_get_reg(&md->client,0x8d);
if (p->value) val |= 0x10;
else val &= ~0x10;
- maven_set_reg (md->client, 0x8d, val);
+ maven_set_reg(&md->client, 0x8d, val);
}
break;
case MATROXFB_CID_DEFLICKER:
{
- maven_set_reg(md->client, 0x93, maven_compute_deflicker(md));
+ maven_set_reg(&md->client, 0x93, maven_compute_deflicker(md));
}
break;
}
@@ -1185,7 +1185,6 @@ static int maven_init_client(struct i2c_client* clnt) {
MINFO_FROM(container_of(clnt->adapter, struct i2c_bit_adapter, adapter)->minfo);
md->primary_head = MINFO;
- md->client = clnt;
down_write(&ACCESS_FBINFO(altout.lock));
ACCESS_FBINFO(outputs[1]).output = &maven_altout;
ACCESS_FBINFO(outputs[1]).src = ACCESS_FBINFO(outputs[1]).default_src;
@@ -1243,19 +1242,17 @@ static int maven_detect_client(struct i2c_adapter* adapter, int address, int kin
I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_PROTOCOL_MANGLING))
goto ERROR0;
- if (!(new_client = (struct i2c_client*)kmalloc(sizeof(*new_client) + sizeof(*data),
- GFP_KERNEL))) {
+ if (!(data = kzalloc(sizeof(*data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
- memset(new_client, 0, sizeof(*new_client) + sizeof(*data));
- data = (struct maven_data*)(new_client + 1);
+ new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
new_client->driver = &maven_driver;
new_client->flags = 0;
- strcpy(new_client->name, "maven client");
+ strlcpy(new_client->name, "maven", I2C_NAME_SIZE);
if ((err = i2c_attach_client(new_client)))
goto ERROR3;
err = maven_init_client(new_client);
@@ -1279,12 +1276,10 @@ static int maven_attach_adapter(struct i2c_adapter* adapter) {
static int maven_detach_client(struct i2c_client* client) {
int err;
- if ((err = i2c_detach_client(client))) {
- printk(KERN_ERR "maven: Cannot deregister client\n");
+ if ((err = i2c_detach_client(client)))
return err;
- }
maven_shutdown_client(client);
- kfree(client);
+ kfree(i2c_get_clientdata(client));
return 0;
}
@@ -1297,20 +1292,13 @@ static struct i2c_driver maven_driver={
.detach_client = maven_detach_client,
};
-/* ************************** */
-
-static int matroxfb_maven_init(void) {
- int err;
-
- err = i2c_add_driver(&maven_driver);
- if (err) {
- printk(KERN_ERR "maven: Maven driver failed to register (%d).\n", err);
- return err;
- }
- return 0;
+static int __init matroxfb_maven_init(void)
+{
+ return i2c_add_driver(&maven_driver);
}
-static void matroxfb_maven_exit(void) {
+static void __exit matroxfb_maven_exit(void)
+{
i2c_del_driver(&maven_driver);
}
diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 1da2f84bdc2..26a1c618a20 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -183,6 +183,10 @@ static const struct fb_videomode modedb[] = {
NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
+ /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
+ NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }, {
/* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
@@ -496,7 +500,7 @@ int fb_find_mode(struct fb_var_screeninfo *var,
/* Set up defaults */
if (!db) {
db = modedb;
- dbsize = sizeof(modedb)/sizeof(*modedb);
+ dbsize = ARRAY_SIZE(modedb);
}
if (!default_mode)
default_mode = &modedb[DEFAULT_MODEDB_INDEX];
diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index b961d5601bd..24b12f71d5a 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -165,20 +165,20 @@ static int neoFindMode(int xres, int yres, int depth)
switch (depth) {
case 8:
- size = sizeof(bios8) / sizeof(biosMode);
+ size = ARRAY_SIZE(bios8);
mode = bios8;
break;
case 16:
- size = sizeof(bios16) / sizeof(biosMode);
+ size = ARRAY_SIZE(bios16);
mode = bios16;
break;
case 24:
- size = sizeof(bios24) / sizeof(biosMode);
+ size = ARRAY_SIZE(bios24);
mode = bios24;
break;
#ifdef NO_32BIT_SUPPORT_YET
case 32:
- size = sizeof(bios32) / sizeof(biosMode);
+ size = ARRAY_SIZE(bios32);
mode = bios32;
break;
#endif
diff --git a/drivers/video/nvidia/nv_accel.c b/drivers/video/nvidia/nv_accel.c
index f377a29ec97..4aefb8f4163 100644
--- a/drivers/video/nvidia/nv_accel.c
+++ b/drivers/video/nvidia/nv_accel.c
@@ -300,6 +300,9 @@ int nvidiafb_sync(struct fb_info *info)
{
struct nvidia_par *par = info->par;
+ if (info->state != FBINFO_STATE_RUNNING)
+ return 0;
+
if (!par->lockup)
NVFlush(par);
@@ -313,6 +316,9 @@ void nvidiafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
{
struct nvidia_par *par = info->par;
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
if (par->lockup)
return cfb_copyarea(info, region);
@@ -329,6 +335,9 @@ void nvidiafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
struct nvidia_par *par = info->par;
u32 color;
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
if (par->lockup)
return cfb_fillrect(info, rect);
@@ -412,6 +421,9 @@ void nvidiafb_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct nvidia_par *par = info->par;
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
if (image->depth == 1 && !par->lockup)
nvidiafb_mono_color_expand(info, image);
else
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c
index bd9eca05e14..1edb1c432b7 100644
--- a/drivers/video/nvidia/nv_i2c.c
+++ b/drivers/video/nvidia/nv_i2c.c
@@ -218,8 +218,7 @@ int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
}
}
- if (out_edid)
- *out_edid = edid;
+ *out_edid = edid;
return (edid) ? 0 : 1;
}
diff --git a/drivers/video/nvidia/nv_type.h b/drivers/video/nvidia/nv_type.h
index e4a5b1da71c..acdc2669340 100644
--- a/drivers/video/nvidia/nv_type.h
+++ b/drivers/video/nvidia/nv_type.h
@@ -129,6 +129,7 @@ struct nvidia_par {
int fpHeight;
int PanelTweak;
int paneltweak;
+ int pm_state;
u32 crtcSync_read;
u32 fpSyncs;
u32 dmaPut;
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index a7c4e5e8ead..6d3e4890cb4 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -21,6 +21,7 @@
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/console.h>
#ifdef CONFIG_MTRR
#include <asm/mtrr.h>
#endif
@@ -296,6 +297,8 @@ static struct pci_device_id nvidiafb_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_GEFORCE_6800_GT,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_QUADRO_NVS280,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_NVIDIA, 0x0252,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_NVIDIA, 0x0313,
@@ -615,6 +618,30 @@ static int nvidia_panel_tweak(struct nvidia_par *par,
return tweak;
}
+static void nvidia_vga_protect(struct nvidia_par *par, int on)
+{
+ unsigned char tmp;
+
+ if (on) {
+ /*
+ * Turn off screen and disable sequencer.
+ */
+ tmp = NVReadSeq(par, 0x01);
+
+ NVWriteSeq(par, 0x00, 0x01); /* Synchronous Reset */
+ NVWriteSeq(par, 0x01, tmp | 0x20); /* disable the display */
+ } else {
+ /*
+ * Reenable sequencer, then turn on screen.
+ */
+
+ tmp = NVReadSeq(par, 0x01);
+
+ NVWriteSeq(par, 0x01, tmp & ~0x20); /* reenable display */
+ NVWriteSeq(par, 0x00, 0x03); /* End Reset */
+ }
+}
+
static void nvidia_save_vga(struct nvidia_par *par,
struct _riva_hw_state *state)
{
@@ -643,9 +670,9 @@ static void nvidia_save_vga(struct nvidia_par *par,
#undef DUMP_REG
-static void nvidia_write_regs(struct nvidia_par *par)
+static void nvidia_write_regs(struct nvidia_par *par,
+ struct _riva_hw_state *state)
{
- struct _riva_hw_state *state = &par->ModeReg;
int i;
NVTRACE_ENTER();
@@ -694,32 +721,6 @@ static void nvidia_write_regs(struct nvidia_par *par)
NVTRACE_LEAVE();
}
-static void nvidia_vga_protect(struct nvidia_par *par, int on)
-{
- unsigned char tmp;
-
- if (on) {
- /*
- * Turn off screen and disable sequencer.
- */
- tmp = NVReadSeq(par, 0x01);
-
- NVWriteSeq(par, 0x00, 0x01); /* Synchronous Reset */
- NVWriteSeq(par, 0x01, tmp | 0x20); /* disable the display */
- } else {
- /*
- * Reenable sequencer, then turn on screen.
- */
-
- tmp = NVReadSeq(par, 0x01);
-
- NVWriteSeq(par, 0x01, tmp & ~0x20); /* reenable display */
- NVWriteSeq(par, 0x00, 0x03); /* End Reset */
- }
-}
-
-
-
static int nvidia_calc_regs(struct fb_info *info)
{
struct nvidia_par *par = info->par;
@@ -1068,7 +1069,8 @@ static int nvidiafb_set_par(struct fb_info *info)
nvidia_vga_protect(par, 1);
- nvidia_write_regs(par);
+ nvidia_write_regs(par, &par->ModeReg);
+ NVSetStartAddress(par, 0);
#if defined (__BIG_ENDIAN)
/* turn on LFB swapping */
@@ -1377,6 +1379,57 @@ static struct fb_ops nvidia_fb_ops = {
.fb_sync = nvidiafb_sync,
};
+#ifdef CONFIG_PM
+static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t state)
+{
+ struct fb_info *info = pci_get_drvdata(dev);
+ struct nvidia_par *par = info->par;
+
+ acquire_console_sem();
+ par->pm_state = state.event;
+
+ if (state.event == PM_EVENT_FREEZE) {
+ dev->dev.power.power_state = state;
+ } else {
+ fb_set_suspend(info, 1);
+ nvidiafb_blank(FB_BLANK_POWERDOWN, info);
+ nvidia_write_regs(par, &par->SavedReg);
+ pci_save_state(dev);
+ pci_disable_device(dev);
+ pci_set_power_state(dev, pci_choose_state(dev, state));
+ }
+
+ release_console_sem();
+ return 0;
+}
+
+static int nvidiafb_resume(struct pci_dev *dev)
+{
+ struct fb_info *info = pci_get_drvdata(dev);
+ struct nvidia_par *par = info->par;
+
+ acquire_console_sem();
+ pci_set_power_state(dev, PCI_D0);
+
+ if (par->pm_state != PM_EVENT_FREEZE) {
+ pci_restore_state(dev);
+ pci_enable_device(dev);
+ pci_set_master(dev);
+ }
+
+ par->pm_state = PM_EVENT_ON;
+ nvidiafb_set_par(info);
+ fb_set_suspend (info, 0);
+ nvidiafb_blank(FB_BLANK_UNBLANK, info);
+
+ release_console_sem();
+ return 0;
+}
+#else
+#define nvidiafb_suspend NULL
+#define nvidiafb_resume NULL
+#endif
+
static int __devinit nvidia_set_fbinfo(struct fb_info *info)
{
struct fb_monspecs *specs = &info->monspecs;
@@ -1720,8 +1773,6 @@ static void __exit nvidiafb_remove(struct pci_dev *pd)
struct nvidia_par *par = info->par;
NVTRACE_ENTER();
- if (!info)
- return;
unregister_framebuffer(info);
#ifdef CONFIG_MTRR
@@ -1798,8 +1849,10 @@ static int __devinit nvidiafb_setup(char *options)
static struct pci_driver nvidiafb_driver = {
.name = "nvidiafb",
.id_table = nvidiafb_pci_tbl,
- .probe = nvidiafb_probe,
- .remove = __exit_p(nvidiafb_remove),
+ .probe = nvidiafb_probe,
+ .suspend = nvidiafb_suspend,
+ .resume = nvidiafb_resume,
+ .remove = __exit_p(nvidiafb_remove),
};
/* ------------------------------------------------------------------------- *
diff --git a/drivers/video/pmagb-b-fb.c b/drivers/video/pmagb-b-fb.c
index eeeac924b50..73e2d7d1660 100644
--- a/drivers/video/pmagb-b-fb.c
+++ b/drivers/video/pmagb-b-fb.c
@@ -228,7 +228,7 @@ static void __init pmagbbfb_osc_setup(struct fb_info *info)
freq1 = (par->osc0 * count1 + count0 / 2) / count0;
par->osc1 = freq1;
- for (i = 0; i < sizeof(pmagbbfb_freqs) / sizeof(*pmagbbfb_freqs); i++)
+ for (i = 0; i < ARRAY_SIZE(pmagbbfb_freqs); i++)
if (freq1 >= pmagbbfb_freqs[i] -
(pmagbbfb_freqs[i] + 128) / 256 &&
freq1 <= pmagbbfb_freqs[i] +
diff --git a/drivers/video/radeonfb.c b/drivers/video/radeonfb.c
index db9fb9074db..24982adb3aa 100644
--- a/drivers/video/radeonfb.c
+++ b/drivers/video/radeonfb.c
@@ -759,7 +759,7 @@ static void __iomem *radeon_find_rom(struct radeonfb_info *rinfo)
rom = rom_base;
for (i = 0; (i < 512) && (stage != 4); i++) {
- for(j = 0;j < sizeof(radeon_sig)/sizeof(char *);j++) {
+ for (j = 0; j < ARRAY_SIZE(radeon_sig); j++) {
if (radeon_sig[j][0] == *rom)
if (strncmp(radeon_sig[j], rom,
strlen(radeon_sig[j])) == 0) {
diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index 6c19ab6afb0..f841f013b96 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -2072,8 +2072,6 @@ static void __exit rivafb_remove(struct pci_dev *pd)
struct riva_par *par = info->par;
NVTRACE_ENTER();
- if (!info)
- return;
#ifdef CONFIG_FB_RIVA_I2C
riva_delete_i2c_busses(par);
diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c
index 00719a91479..21debed863a 100644
--- a/drivers/video/savage/savagefb-i2c.c
+++ b/drivers/video/savage/savagefb-i2c.c
@@ -273,8 +273,7 @@ int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid)
}
}
- if (out_edid)
- *out_edid = edid;
+ *out_edid = edid;
return (edid) ? 0 : 1;
}
diff --git a/drivers/video/sis/init301.c b/drivers/video/sis/init301.c
index 2d88f908170..c3e070a6eff 100644
--- a/drivers/video/sis/init301.c
+++ b/drivers/video/sis/init301.c
@@ -8564,11 +8564,9 @@ SiS_ChrontelDoSomething3(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
static void
SiS_ChrontelDoSomething2(struct SiS_Private *SiS_Pr)
{
- unsigned short temp,tempcl,tempch;
+ unsigned short temp;
SiS_LongDelay(SiS_Pr, 1);
- tempcl = 3;
- tempch = 0;
do {
temp = SiS_GetCH701x(SiS_Pr,0x66);
@@ -8582,13 +8580,6 @@ SiS_ChrontelDoSomething2(struct SiS_Private *SiS_Pr)
SiS_SetCH701xForLCD(SiS_Pr);
- if(tempcl == 0) {
- if(tempch == 3) break;
- SiS_ChrontelResetDB(SiS_Pr);
- tempcl = 3;
- tempch++;
- }
- tempcl--;
temp = SiS_GetCH701x(SiS_Pr,0x76);
temp &= 0xfb; /* Reset PLL */
SiS_SetCH701x(SiS_Pr,0x76,temp);
diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index 8c1a8b5135c..c44de90ca12 100644
--- a/drivers/video/sstfb.c
+++ b/drivers/video/sstfb.c
@@ -1194,10 +1194,11 @@ static struct dac_switch dacs[] __devinitdata = {
static int __devinit sst_detect_dactype(struct fb_info *info, struct sstfb_par *par)
{
int i, ret = 0;
-
- for (i=0; i<sizeof(dacs)/sizeof(dacs[0]); i++) {
+
+ for (i = 0; i < ARRAY_SIZE(dacs); i++) {
ret = dacs[i].detect(info);
- if (ret) break;
+ if (ret)
+ break;
}
if (!ret)
return 0;
@@ -1604,8 +1605,8 @@ static int sstfb_dump_regs(struct fb_info *info)
{FBZMODE,"fbzmode"},
};
- const int pci_s = sizeof(pci_regs)/sizeof(pci_regs[0]);
- const int sst_s = sizeof(sst_regs)/sizeof(sst_regs[0]);
+ const int pci_s = ARRAY_SIZE(pci_regs);
+ const int sst_s = ARRAY_SIZE(sst_regs);
struct sstfb_par *par = info->par;
struct pci_dev *dev = par->dev;
u32 pci_res[pci_s];
diff --git a/drivers/video/virgefb.c b/drivers/video/virgefb.c
index ed78747487e..5ea2345dab9 100644
--- a/drivers/video/virgefb.c
+++ b/drivers/video/virgefb.c
@@ -616,8 +616,7 @@ static struct {
#endif
};
-#define arraysize(x) (sizeof(x)/sizeof(*(x)))
-#define NUM_TOTAL_MODES arraysize(virgefb_predefined)
+#define NUM_TOTAL_MODES ARRAY_SIZE(virgefb_predefined)
/*
* Default to 800x600 for video=virge8:, virge16: or virge32: