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path: root/drivers/pcmcia
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Diffstat (limited to 'drivers/pcmcia')
-rw-r--r--drivers/pcmcia/at91_cf.c75
-rw-r--r--drivers/pcmcia/au1000_db1x00.c2
-rw-r--r--drivers/pcmcia/cs.c29
-rw-r--r--drivers/pcmcia/pcmcia_resource.c27
-rw-r--r--drivers/pcmcia/ti113x.h1
-rw-r--r--drivers/pcmcia/yenta_socket.c83
6 files changed, 177 insertions, 40 deletions
diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index a4d50940ebe..5256342e853 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -214,11 +214,10 @@ static struct pccard_operations at91_cf_ops = {
/*--------------------------------------------------------------------------*/
-static int __init at91_cf_probe(struct device *dev)
+static int __init at91_cf_probe(struct platform_device *pdev)
{
struct at91_cf_socket *cf;
- struct at91_cf_data *board = dev->platform_data;
- struct platform_device *pdev = to_platform_device(dev);
+ struct at91_cf_data *board = pdev->dev.platform_data;
struct resource *io;
unsigned int csa;
int status;
@@ -236,7 +235,7 @@ static int __init at91_cf_probe(struct device *dev)
cf->board = board;
cf->pdev = pdev;
- dev_set_drvdata(dev, cf);
+ platform_set_drvdata(pdev, cf);
/* CF takes over CS4, CS5, CS6 */
csa = at91_sys_read(AT91_EBI_CSA);
@@ -271,6 +270,7 @@ static int __init at91_cf_probe(struct device *dev)
SA_SAMPLE_RANDOM, driver_name, cf);
if (status < 0)
goto fail0;
+ device_init_wakeup(&pdev->dev, 1);
/*
* The card driver will request this irq later as needed.
@@ -301,7 +301,7 @@ static int __init at91_cf_probe(struct device *dev)
board->det_pin, board->irq_pin);
cf->socket.owner = THIS_MODULE;
- cf->socket.dev.dev = dev;
+ cf->socket.dev.dev = &pdev->dev;
cf->socket.ops = &at91_cf_ops;
cf->socket.resource_ops = &pccard_static_ops;
cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
@@ -323,21 +323,25 @@ fail1:
free_irq(board->irq_pin, cf);
fail0a:
free_irq(board->det_pin, cf);
+ device_init_wakeup(&pdev->dev, 0);
fail0:
at91_sys_write(AT91_EBI_CSA, csa);
kfree(cf);
return status;
}
-static int __exit at91_cf_remove(struct device *dev)
+static int __exit at91_cf_remove(struct platform_device *pdev)
{
- struct at91_cf_socket *cf = dev_get_drvdata(dev);
+ struct at91_cf_socket *cf = platform_get_drvdata(pdev);
+ struct at91_cf_data *board = cf->board;
struct resource *io = cf->socket.io[0].res;
unsigned int csa;
pcmcia_unregister_socket(&cf->socket);
- free_irq(cf->board->irq_pin, cf);
- free_irq(cf->board->det_pin, cf);
+ if (board->irq_pin)
+ free_irq(board->irq_pin, cf);
+ free_irq(board->det_pin, cf);
+ device_init_wakeup(&pdev->dev, 0);
iounmap((void __iomem *) cf->socket.io_offset);
release_mem_region(io->start, io->end + 1 - io->start);
@@ -348,26 +352,65 @@ static int __exit at91_cf_remove(struct device *dev)
return 0;
}
-static struct device_driver at91_cf_driver = {
- .name = (char *) driver_name,
- .bus = &platform_bus_type,
+#ifdef CONFIG_PM
+
+static int at91_cf_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ struct at91_cf_socket *cf = platform_get_drvdata(pdev);
+ struct at91_cf_data *board = cf->board;
+
+ pcmcia_socket_dev_suspend(&pdev->dev, mesg);
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(board->det_pin);
+ else {
+ disable_irq_wake(board->det_pin);
+ disable_irq(board->det_pin);
+ }
+ if (board->irq_pin)
+ disable_irq(board->irq_pin);
+ return 0;
+}
+
+static int at91_cf_resume(struct platform_device *pdev)
+{
+ struct at91_cf_socket *cf = platform_get_drvdata(pdev);
+ struct at91_cf_data *board = cf->board;
+
+ if (board->irq_pin)
+ enable_irq(board->irq_pin);
+ if (!device_may_wakeup(&pdev->dev))
+ enable_irq(board->det_pin);
+ pcmcia_socket_dev_resume(&pdev->dev);
+ return 0;
+}
+
+#else
+#define at91_cf_suspend NULL
+#define at91_cf_resume NULL
+#endif
+
+static struct platform_driver at91_cf_driver = {
+ .driver = {
+ .name = (char *) driver_name,
+ .owner = THIS_MODULE,
+ },
.probe = at91_cf_probe,
.remove = __exit_p(at91_cf_remove),
- .suspend = pcmcia_socket_dev_suspend,
- .resume = pcmcia_socket_dev_resume,
+ .suspend = at91_cf_suspend,
+ .resume = at91_cf_resume,
};
/*--------------------------------------------------------------------------*/
static int __init at91_cf_init(void)
{
- return driver_register(&at91_cf_driver);
+ return platform_driver_register(&at91_cf_driver);
}
module_init(at91_cf_init);
static void __exit at91_cf_exit(void)
{
- driver_unregister(&at91_cf_driver);
+ platform_driver_unregister(&at91_cf_driver);
}
module_exit(at91_cf_exit);
diff --git a/drivers/pcmcia/au1000_db1x00.c b/drivers/pcmcia/au1000_db1x00.c
index 24cfee1a412..74e051535d6 100644
--- a/drivers/pcmcia/au1000_db1x00.c
+++ b/drivers/pcmcia/au1000_db1x00.c
@@ -295,7 +295,7 @@ struct pcmcia_low_level db1x00_pcmcia_ops = {
.socket_suspend = db1x00_socket_suspend
};
-int __init au1x_board_init(struct device *dev)
+int au1x_board_init(struct device *dev)
{
int ret = -ENODEV;
bcsr->pcmcia = 0; /* turn off power, if it's not already off */
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 3162998579c..f9cd831a3f3 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -28,6 +28,7 @@
#include <linux/pm.h>
#include <linux/pci.h>
#include <linux/device.h>
+#include <linux/kthread.h>
#include <asm/system.h>
#include <asm/irq.h>
@@ -176,6 +177,7 @@ static int pccardd(void *__skt);
*/
int pcmcia_register_socket(struct pcmcia_socket *socket)
{
+ struct task_struct *tsk;
int ret;
if (!socket || !socket->ops || !socket->dev.dev || !socket->resource_ops)
@@ -239,15 +241,18 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
mutex_init(&socket->skt_mutex);
spin_lock_init(&socket->thread_lock);
- ret = kernel_thread(pccardd, socket, CLONE_KERNEL);
- if (ret < 0)
+ tsk = kthread_run(pccardd, socket, "pccardd");
+ if (IS_ERR(tsk)) {
+ ret = PTR_ERR(tsk);
goto err;
+ }
wait_for_completion(&socket->thread_done);
- if(!socket->thread) {
+ if (!socket->thread) {
printk(KERN_WARNING "PCMCIA: warning: socket thread for socket %p did not start\n", socket);
return -EIO;
}
+
pcmcia_parse_events(socket, SS_DETECT);
return 0;
@@ -272,10 +277,8 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket)
cs_dbg(socket, 0, "pcmcia_unregister_socket(0x%p)\n", socket->ops);
if (socket->thread) {
- init_completion(&socket->thread_done);
- socket->thread = NULL;
wake_up(&socket->thread_wait);
- wait_for_completion(&socket->thread_done);
+ kthread_stop(socket->thread);
}
release_cis_mem(socket);
@@ -630,8 +633,6 @@ static int pccardd(void *__skt)
DECLARE_WAITQUEUE(wait, current);
int ret;
- daemonize("pccardd");
-
skt->thread = current;
skt->socket = dead_socket;
skt->ops->init(skt);
@@ -643,7 +644,8 @@ static int pccardd(void *__skt)
printk(KERN_WARNING "PCMCIA: unable to register socket 0x%p\n",
skt);
skt->thread = NULL;
- complete_and_exit(&skt->thread_done, 0);
+ complete(&skt->thread_done);
+ return 0;
}
add_wait_queue(&skt->thread_wait, &wait);
@@ -674,7 +676,7 @@ static int pccardd(void *__skt)
continue;
}
- if (!skt->thread)
+ if (kthread_should_stop())
break;
schedule();
@@ -688,7 +690,7 @@ static int pccardd(void *__skt)
/* remove from the device core */
class_device_unregister(&skt->dev);
- complete_and_exit(&skt->thread_done, 0);
+ return 0;
}
/*
@@ -697,11 +699,12 @@ static int pccardd(void *__skt)
*/
void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
{
+ unsigned long flags;
cs_dbg(s, 4, "parse_events: events %08x\n", events);
if (s->thread) {
- spin_lock(&s->thread_lock);
+ spin_lock_irqsave(&s->thread_lock, flags);
s->thread_events |= events;
- spin_unlock(&s->thread_lock);
+ spin_unlock_irqrestore(&s->thread_lock, flags);
wake_up(&s->thread_wait);
}
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 3131bb0a009..3281e519e71 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -788,6 +788,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
int ret = CS_IN_USE, irq = 0;
+ int type;
if (!(s->state & SOCKET_PRESENT))
return CS_NO_CARD;
@@ -797,6 +798,13 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
if (c->state & CONFIG_IRQ_REQ)
return CS_IN_USE;
+ /* Decide what type of interrupt we are registering */
+ type = 0;
+ if (s->functions > 1) /* All of this ought to be handled higher up */
+ type = SA_SHIRQ;
+ if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
+ type = SA_SHIRQ;
+
#ifdef CONFIG_PCMCIA_PROBE
if (s->irq.AssignedIRQ != 0) {
/* If the interrupt is already assigned, it must be the same */
@@ -822,9 +830,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
* marked as used by the kernel resource management core */
ret = request_irq(irq,
(req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action,
- ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) ||
- (s->functions > 1) ||
- (irq == s->pci_irq)) ? SA_SHIRQ : 0,
+ type,
p_dev->devname,
(req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
if (!ret) {
@@ -839,18 +845,21 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
if (ret && !s->irq.AssignedIRQ) {
if (!s->pci_irq)
return ret;
+ type = SA_SHIRQ;
irq = s->pci_irq;
}
- if (ret && req->Attributes & IRQ_HANDLE_PRESENT) {
- if (request_irq(irq, req->Handler,
- ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) ||
- (s->functions > 1) ||
- (irq == s->pci_irq)) ? SA_SHIRQ : 0,
- p_dev->devname, req->Instance))
+ if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) {
+ if (request_irq(irq, req->Handler, type, p_dev->devname, req->Instance))
return CS_IN_USE;
}
+ /* Make sure the fact the request type was overridden is passed back */
+ if (type == SA_SHIRQ && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) {
+ req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
+ printk(KERN_WARNING "pcmcia: request for exclusive IRQ could not be fulfilled.\n");
+ printk(KERN_WARNING "pcmcia: the driver needs updating to supported shared IRQ lines.\n");
+ }
c->irq.Attributes = req->Attributes;
s->irq.AssignedIRQ = req->AssignedIRQ = irq;
s->irq.Config++;
diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h
index 7a3d1b8e16b..62e9ebf967f 100644
--- a/drivers/pcmcia/ti113x.h
+++ b/drivers/pcmcia/ti113x.h
@@ -647,6 +647,7 @@ static int ti12xx_2nd_slot_empty(struct yenta_socket *socket)
*/
break;
+ case PCI_DEVICE_ID_TI_XX12:
case PCI_DEVICE_ID_TI_X515:
case PCI_DEVICE_ID_TI_X420:
case PCI_DEVICE_ID_TI_X620:
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 4145eb83b9b..47e57602d5e 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -287,7 +287,10 @@ static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
u16 bridge;
- yenta_set_power(socket, state);
+ /* if powering down: do it immediately */
+ if (state->Vcc == 0)
+ yenta_set_power(socket, state);
+
socket->io_irq = state->io_irq;
bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
@@ -339,6 +342,10 @@ static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
/* Socket event mask: get card insert/remove events.. */
cb_writel(socket, CB_SOCKET_EVENT, -1);
cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
+
+ /* if powering up: do it as the last step when the socket is configured */
+ if (state->Vcc != 0)
+ yenta_set_power(socket, state);
return 0;
}
@@ -998,6 +1005,77 @@ static void yenta_config_init(struct yenta_socket *socket)
config_writew(socket, CB_BRIDGE_CONTROL, bridge);
}
+/**
+ * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
+ * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
+ *
+ * Checks if devices on the bus which the CardBus bridge bridges to would be
+ * invisible during PCI scans because of a misconfigured subordinate number
+ * of the parent brige - some BIOSes seem to be too lazy to set it right.
+ * Does the fixup carefully by checking how far it can go without conflicts.
+ * See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
+ */
+static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
+{
+ struct list_head *tmp;
+ unsigned char upper_limit;
+ /*
+ * We only check and fix the parent bridge: All systems which need
+ * this fixup that have been reviewed are laptops and the only bridge
+ * which needed fixing was the parent bridge of the CardBus bridge:
+ */
+ struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
+
+ /* Check bus numbers are already set up correctly: */
+ if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate)
+ return; /* The subordinate number is ok, nothing to do */
+
+ if (!bridge_to_fix->parent)
+ return; /* Root bridges are ok */
+
+ /* stay within the limits of the bus range of the parent: */
+ upper_limit = bridge_to_fix->parent->subordinate;
+
+ /* check the bus ranges of all silbling bridges to prevent overlap */
+ list_for_each(tmp, &bridge_to_fix->parent->children) {
+ struct pci_bus * silbling = pci_bus_b(tmp);
+ /*
+ * If the silbling has a higher secondary bus number
+ * and it's secondary is equal or smaller than our
+ * current upper limit, set the new upper limit to
+ * the bus number below the silbling's range:
+ */
+ if (silbling->secondary > bridge_to_fix->subordinate
+ && silbling->secondary <= upper_limit)
+ upper_limit = silbling->secondary - 1;
+ }
+
+ /* Show that the wanted subordinate number is not possible: */
+ if (cardbus_bridge->subordinate > upper_limit)
+ printk(KERN_WARNING "Yenta: Upper limit for fixing this "
+ "bridge's parent bridge: #%02x\n", upper_limit);
+
+ /* If we have room to increase the bridge's subordinate number, */
+ if (bridge_to_fix->subordinate < upper_limit) {
+
+ /* use the highest number of the hidden bus, within limits */
+ unsigned char subordinate_to_assign =
+ min(cardbus_bridge->subordinate, upper_limit);
+
+ printk(KERN_INFO "Yenta: Raising subordinate bus# of parent "
+ "bus (#%02x) from #%02x to #%02x\n",
+ bridge_to_fix->number,
+ bridge_to_fix->subordinate, subordinate_to_assign);
+
+ /* Save the new subordinate in the bus struct of the bridge */
+ bridge_to_fix->subordinate = subordinate_to_assign;
+
+ /* and update the PCI config space with the new subordinate */
+ pci_write_config_byte(bridge_to_fix->self,
+ PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate);
+ }
+}
+
/*
* Initialize a cardbus controller. Make sure we have a usable
* interrupt, and that we can map the cardbus area. Fill in the
@@ -1113,6 +1191,8 @@ static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_i
yenta_get_socket_capabilities(socket, isa_interrupts);
printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
+ yenta_fixup_parent_bridge(dev->subordinate);
+
/* Register it with the pcmcia layer.. */
ret = pcmcia_register_socket(&socket->socket);
if (ret == 0) {
@@ -1232,6 +1312,7 @@ static struct pci_device_id yenta_table [] = {
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
+ CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 10:08:15 +0000