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path: root/drivers/char/watchdog/iTCO_wdt.c
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Diffstat (limited to 'drivers/char/watchdog/iTCO_wdt.c')
-rw-r--r--drivers/char/watchdog/iTCO_wdt.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/char/watchdog/iTCO_wdt.c b/drivers/char/watchdog/iTCO_wdt.c
index b6f29cb8bd3..7eac922df86 100644
--- a/drivers/char/watchdog/iTCO_wdt.c
+++ b/drivers/char/watchdog/iTCO_wdt.c
@@ -48,8 +48,8 @@
/* Module and version information */
#define DRV_NAME "iTCO_wdt"
-#define DRV_VERSION "1.00"
-#define DRV_RELDATE "08-Oct-2006"
+#define DRV_VERSION "1.01"
+#define DRV_RELDATE "11-Nov-2006"
#define PFX DRV_NAME ": "
/* Includes */
@@ -189,6 +189,21 @@ static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)");
+/* iTCO Vendor Specific Support hooks */
+#ifdef CONFIG_ITCO_VENDOR_SUPPORT
+extern void iTCO_vendor_pre_start(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_stop(unsigned long);
+extern void iTCO_vendor_pre_keepalive(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_set_heartbeat(unsigned int);
+extern int iTCO_vendor_check_noreboot_on(void);
+#else
+#define iTCO_vendor_pre_start(acpibase, heartbeat) {}
+#define iTCO_vendor_pre_stop(acpibase) {}
+#define iTCO_vendor_pre_keepalive(acpibase,heartbeat) {}
+#define iTCO_vendor_pre_set_heartbeat(heartbeat) {}
+#define iTCO_vendor_check_noreboot_on() 1 /* 1=check noreboot; 0=don't check */
+#endif
+
/*
* Some TCO specific functions
*/
@@ -249,6 +264,8 @@ static int iTCO_wdt_start(void)
spin_lock(&iTCO_wdt_private.io_lock);
+ iTCO_vendor_pre_start(iTCO_wdt_private.ACPIBASE, heartbeat);
+
/* disable chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit()) {
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
@@ -273,6 +290,8 @@ static int iTCO_wdt_stop(void)
spin_lock(&iTCO_wdt_private.io_lock);
+ iTCO_vendor_pre_stop(iTCO_wdt_private.ACPIBASE);
+
/* Bit 11: TCO Timer Halt -> 1 = The TCO timer is disabled */
val = inw(TCO1_CNT);
val |= 0x0800;
@@ -293,6 +312,8 @@ static int iTCO_wdt_keepalive(void)
{
spin_lock(&iTCO_wdt_private.io_lock);
+ iTCO_vendor_pre_keepalive(iTCO_wdt_private.ACPIBASE, heartbeat);
+
/* Reload the timer by writing to the TCO Timer Counter register */
if (iTCO_wdt_private.iTCO_version == 2) {
outw(0x01, TCO_RLD);
@@ -319,6 +340,8 @@ static int iTCO_wdt_set_heartbeat(int t)
((iTCO_wdt_private.iTCO_version == 1) && (tmrval > 0x03f)))
return -EINVAL;
+ iTCO_vendor_pre_set_heartbeat(tmrval);
+
/* Write new heartbeat to watchdog */
if (iTCO_wdt_private.iTCO_version == 2) {
spin_lock(&iTCO_wdt_private.io_lock);
@@ -569,7 +592,7 @@ static int iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent,
}
/* Check chipset's NO_REBOOT bit */
- if (iTCO_wdt_unset_NO_REBOOT_bit()) {
+ if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
goto out;