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authorTejun Heo <htejun@gmail.com>2006-06-17 15:49:55 +0900
committerJeff Garzik <jeff@garzik.org>2006-06-20 04:59:21 -0400
commit638ebcc81f40b160f5e8b161e690e9b1b9503c1e (patch)
treefc902a4de9705818efb2f93b286fed31d076e6f0 /drivers/scsi/sata_nv.c
parentea6e1e94f2cb9ae54bd1428e1ef3e84a749ceed8 (diff)
[PATCH] sata_nv: kill not-working hotplug code
sata_nv contained hotplug code which is mainly for demonstrating how hotplug event is handled. This patch kills the demo code in prepration for real hotplug implementation. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/scsi/sata_nv.c')
-rw-r--r--drivers/scsi/sata_nv.c169
1 files changed, 0 insertions, 169 deletions
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index 90551246aa4..70f81941f76 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -64,12 +64,6 @@ enum {
NV_INT_STATUS_SDEV_PM = 0x20,
NV_INT_STATUS_SDEV_ADDED = 0x40,
NV_INT_STATUS_SDEV_REMOVED = 0x80,
- NV_INT_STATUS_PDEV_HOTPLUG = (NV_INT_STATUS_PDEV_ADDED |
- NV_INT_STATUS_PDEV_REMOVED),
- NV_INT_STATUS_SDEV_HOTPLUG = (NV_INT_STATUS_SDEV_ADDED |
- NV_INT_STATUS_SDEV_REMOVED),
- NV_INT_STATUS_HOTPLUG = (NV_INT_STATUS_PDEV_HOTPLUG |
- NV_INT_STATUS_SDEV_HOTPLUG),
NV_INT_ENABLE = 0x11,
NV_INT_ENABLE_CK804 = 0x441,
@@ -81,12 +75,6 @@ enum {
NV_INT_ENABLE_SDEV_PM = 0x20,
NV_INT_ENABLE_SDEV_ADDED = 0x40,
NV_INT_ENABLE_SDEV_REMOVED = 0x80,
- NV_INT_ENABLE_PDEV_HOTPLUG = (NV_INT_ENABLE_PDEV_ADDED |
- NV_INT_ENABLE_PDEV_REMOVED),
- NV_INT_ENABLE_SDEV_HOTPLUG = (NV_INT_ENABLE_SDEV_ADDED |
- NV_INT_ENABLE_SDEV_REMOVED),
- NV_INT_ENABLE_HOTPLUG = (NV_INT_ENABLE_PDEV_HOTPLUG |
- NV_INT_ENABLE_SDEV_HOTPLUG),
NV_INT_CONFIG = 0x12,
NV_INT_CONFIG_METHD = 0x01, // 0 = INT, 1 = SMI
@@ -102,12 +90,6 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance,
static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static void nv_host_stop (struct ata_host_set *host_set);
-static void nv_enable_hotplug(struct ata_probe_ent *probe_ent);
-static void nv_disable_hotplug(struct ata_host_set *host_set);
-static int nv_check_hotplug(struct ata_host_set *host_set);
-static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent);
-static void nv_disable_hotplug_ck804(struct ata_host_set *host_set);
-static int nv_check_hotplug_ck804(struct ata_host_set *host_set);
enum nv_host_type
{
@@ -158,34 +140,18 @@ static const struct pci_device_id nv_pci_tbl[] = {
struct nv_host_desc
{
enum nv_host_type host_type;
- void (*enable_hotplug)(struct ata_probe_ent *probe_ent);
- void (*disable_hotplug)(struct ata_host_set *host_set);
- int (*check_hotplug)(struct ata_host_set *host_set);
-
};
static struct nv_host_desc nv_device_tbl[] = {
{
.host_type = GENERIC,
- .enable_hotplug = NULL,
- .disable_hotplug= NULL,
- .check_hotplug = NULL,
},
{
.host_type = NFORCE2,
- .enable_hotplug = nv_enable_hotplug,
- .disable_hotplug= nv_disable_hotplug,
- .check_hotplug = nv_check_hotplug,
},
{
.host_type = NFORCE3,
- .enable_hotplug = nv_enable_hotplug,
- .disable_hotplug= nv_disable_hotplug,
- .check_hotplug = nv_check_hotplug,
},
{ .host_type = CK804,
- .enable_hotplug = nv_enable_hotplug_ck804,
- .disable_hotplug= nv_disable_hotplug_ck804,
- .check_hotplug = nv_check_hotplug_ck804,
},
};
@@ -275,7 +241,6 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance,
struct pt_regs *regs)
{
struct ata_host_set *host_set = dev_instance;
- struct nv_host *host = host_set->private_data;
unsigned int i;
unsigned int handled = 0;
unsigned long flags;
@@ -301,9 +266,6 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance,
}
- if (host->host_desc->check_hotplug)
- handled += host->host_desc->check_hotplug(host_set);
-
spin_unlock_irqrestore(&host_set->lock, flags);
return IRQ_RETVAL(handled);
@@ -329,10 +291,6 @@ static void nv_host_stop (struct ata_host_set *host_set)
{
struct nv_host *host = host_set->private_data;
- // Disable hotplug event interrupts.
- if (host->host_desc->disable_hotplug)
- host->host_desc->disable_hotplug(host_set);
-
kfree(host);
ata_pci_host_stop(host_set);
@@ -409,10 +367,6 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc != NV_PORTS)
goto err_out_iounmap;
- // Enable hotplug event interrupts.
- if (host->host_desc->enable_hotplug)
- host->host_desc->enable_hotplug(probe_ent);
-
kfree(probe_ent);
return 0;
@@ -432,129 +386,6 @@ err_out:
return rc;
}
-static void nv_enable_hotplug(struct ata_probe_ent *probe_ent)
-{
- u8 intr_mask;
-
- outb(NV_INT_STATUS_HOTPLUG,
- probe_ent->port[0].scr_addr + NV_INT_STATUS);
-
- intr_mask = inb(probe_ent->port[0].scr_addr + NV_INT_ENABLE);
- intr_mask |= NV_INT_ENABLE_HOTPLUG;
-
- outb(intr_mask, probe_ent->port[0].scr_addr + NV_INT_ENABLE);
-}
-
-static void nv_disable_hotplug(struct ata_host_set *host_set)
-{
- u8 intr_mask;
-
- intr_mask = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE);
-
- intr_mask &= ~(NV_INT_ENABLE_HOTPLUG);
-
- outb(intr_mask, host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE);
-}
-
-static int nv_check_hotplug(struct ata_host_set *host_set)
-{
- u8 intr_status;
-
- intr_status = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS);
-
- // Clear interrupt status.
- outb(0xff, host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS);
-
- if (intr_status & NV_INT_STATUS_HOTPLUG) {
- if (intr_status & NV_INT_STATUS_PDEV_ADDED)
- printk(KERN_WARNING "nv_sata: "
- "Primary device added\n");
-
- if (intr_status & NV_INT_STATUS_PDEV_REMOVED)
- printk(KERN_WARNING "nv_sata: "
- "Primary device removed\n");
-
- if (intr_status & NV_INT_STATUS_SDEV_ADDED)
- printk(KERN_WARNING "nv_sata: "
- "Secondary device added\n");
-
- if (intr_status & NV_INT_STATUS_SDEV_REMOVED)
- printk(KERN_WARNING "nv_sata: "
- "Secondary device removed\n");
-
- return 1;
- }
-
- return 0;
-}
-
-static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent)
-{
- struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
- u8 intr_mask;
- u8 regval;
-
- pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, &regval);
- regval |= NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
- pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
-
- writeb(NV_INT_STATUS_HOTPLUG, probe_ent->mmio_base + NV_INT_STATUS_CK804);
-
- intr_mask = readb(probe_ent->mmio_base + NV_INT_ENABLE_CK804);
- intr_mask |= NV_INT_ENABLE_HOTPLUG;
-
- writeb(intr_mask, probe_ent->mmio_base + NV_INT_ENABLE_CK804);
-}
-
-static void nv_disable_hotplug_ck804(struct ata_host_set *host_set)
-{
- struct pci_dev *pdev = to_pci_dev(host_set->dev);
- u8 intr_mask;
- u8 regval;
-
- intr_mask = readb(host_set->mmio_base + NV_INT_ENABLE_CK804);
-
- intr_mask &= ~(NV_INT_ENABLE_HOTPLUG);
-
- writeb(intr_mask, host_set->mmio_base + NV_INT_ENABLE_CK804);
-
- pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, &regval);
- regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
- pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
-}
-
-static int nv_check_hotplug_ck804(struct ata_host_set *host_set)
-{
- u8 intr_status;
-
- intr_status = readb(host_set->mmio_base + NV_INT_STATUS_CK804);
-
- // Clear interrupt status.
- writeb(0xff, host_set->mmio_base + NV_INT_STATUS_CK804);
-
- if (intr_status & NV_INT_STATUS_HOTPLUG) {
- if (intr_status & NV_INT_STATUS_PDEV_ADDED)
- printk(KERN_WARNING "nv_sata: "
- "Primary device added\n");
-
- if (intr_status & NV_INT_STATUS_PDEV_REMOVED)
- printk(KERN_WARNING "nv_sata: "
- "Primary device removed\n");
-
- if (intr_status & NV_INT_STATUS_SDEV_ADDED)
- printk(KERN_WARNING "nv_sata: "
- "Secondary device added\n");
-
- if (intr_status & NV_INT_STATUS_SDEV_REMOVED)
- printk(KERN_WARNING "nv_sata: "
- "Secondary device removed\n");
-
- return 1;
- }
-
- return 0;
-}
-
static int __init nv_init(void)
{
return pci_module_init(&nv_pci_driver);