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authorWim Van Sebroeck <wim@iguana.be>2006-02-12 16:37:36 +0100
committerWim Van Sebroeck <wim@iguana.be>2006-04-02 18:36:43 +0200
commit4206f0c4de9f9683676a8507ef56941535761579 (patch)
tree730291d3ee46e2bfe2751794f9133b1727d98e73
parent683aa4012f53b2ada0f430487e05d37b0d94e90a (diff)
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[WATCHDOG] pcwd.c control status patch
Clean-up the control status code (insert tabs where relevant), Add new Control Status defines, Make sure that the R2DS bit stays the same. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
-rw-r--r--drivers/char/watchdog/pcwd.c47
1 files changed, 29 insertions, 18 deletions
diff --git a/drivers/char/watchdog/pcwd.c b/drivers/char/watchdog/pcwd.c
index 8d6b249ad66..c6e27e2f039 100644
--- a/drivers/char/watchdog/pcwd.c
+++ b/drivers/char/watchdog/pcwd.c
@@ -73,8 +73,8 @@
#include <asm/io.h> /* For inb/outb/... */
/* Module and version information */
-#define WATCHDOG_VERSION "1.16"
-#define WATCHDOG_DATE "03 Jan 2006"
+#define WATCHDOG_VERSION "1.17"
+#define WATCHDOG_DATE "12 Feb 2006"
#define WATCHDOG_DRIVER_NAME "ISA-PC Watchdog"
#define WATCHDOG_NAME "pcwd"
#define PFX WATCHDOG_NAME ": "
@@ -96,15 +96,19 @@
* PCI-PC Watchdog card.
*/
/* Port 1 : Control Status #1 for the PC Watchdog card, revision A. */
-#define WD_WDRST 0x01 /* Previously reset state */
-#define WD_T110 0x02 /* Temperature overheat sense */
-#define WD_HRTBT 0x04 /* Heartbeat sense */
-#define WD_RLY2 0x08 /* External relay triggered */
-#define WD_SRLY2 0x80 /* Software external relay triggered */
+#define WD_WDRST 0x01 /* Previously reset state */
+#define WD_T110 0x02 /* Temperature overheat sense */
+#define WD_HRTBT 0x04 /* Heartbeat sense */
+#define WD_RLY2 0x08 /* External relay triggered */
+#define WD_SRLY2 0x80 /* Software external relay triggered */
/* Port 1 : Control Status #1 for the PC Watchdog card, revision C. */
-#define WD_REVC_WTRP 0x01 /* Watchdog Trip status */
-#define WD_REVC_HRBT 0x02 /* Watchdog Heartbeat */
-#define WD_REVC_TTRP 0x04 /* Temperature Trip status */
+#define WD_REVC_WTRP 0x01 /* Watchdog Trip status */
+#define WD_REVC_HRBT 0x02 /* Watchdog Heartbeat */
+#define WD_REVC_TTRP 0x04 /* Temperature Trip status */
+#define WD_REVC_RL2A 0x08 /* Relay 2 activated by on-board processor */
+#define WD_REVC_RL1A 0x10 /* Relay 1 active */
+#define WD_REVC_R2DS 0x40 /* Relay 2 disable */
+#define WD_REVC_RLY2 0x80 /* Relay 2 activated? */
/* Port 2 : Control Status #2 */
#define WD_WDIS 0x10 /* Watchdog Disabled */
#define WD_ENTP 0x20 /* Watchdog Enable Temperature Trip */
@@ -407,7 +411,7 @@ static int pcwd_set_heartbeat(int t)
static int pcwd_get_status(int *status)
{
- int card_status;
+ int control_status;
*status=0;
spin_lock(&pcwd_private.io_lock);
@@ -415,22 +419,22 @@ static int pcwd_get_status(int *status)
/* Rev A cards return status information from
* the base register, which is used for the
* temperature in other cards. */
- card_status = inb(pcwd_private.io_addr);
+ control_status = inb(pcwd_private.io_addr);
else {
/* Rev C cards return card status in the base
* address + 1 register. And use different bits
* to indicate a card initiated reset, and an
* over-temperature condition. And the reboot
* status can be reset. */
- card_status = inb(pcwd_private.io_addr + 1);
+ control_status = inb(pcwd_private.io_addr + 1);
}
spin_unlock(&pcwd_private.io_lock);
if (pcwd_private.revision == PCWD_REVISION_A) {
- if (card_status & WD_WDRST)
+ if (control_status & WD_WDRST)
*status |= WDIOF_CARDRESET;
- if (card_status & WD_T110) {
+ if (control_status & WD_T110) {
*status |= WDIOF_OVERHEAT;
if (temp_panic) {
printk (KERN_INFO PFX "Temperature overheat trip!\n");
@@ -438,10 +442,10 @@ static int pcwd_get_status(int *status)
}
}
} else {
- if (card_status & WD_REVC_WTRP)
+ if (control_status & WD_REVC_WTRP)
*status |= WDIOF_CARDRESET;
- if (card_status & WD_REVC_TTRP) {
+ if (control_status & WD_REVC_TTRP) {
*status |= WDIOF_OVERHEAT;
if (temp_panic) {
printk (KERN_INFO PFX "Temperature overheat trip!\n");
@@ -455,9 +459,16 @@ static int pcwd_get_status(int *status)
static int pcwd_clear_status(void)
{
+ int control_status;
+
if (pcwd_private.revision == PCWD_REVISION_C) {
spin_lock(&pcwd_private.io_lock);
- outb_p(0x00, pcwd_private.io_addr + 1); /* clear reset status */
+
+ control_status = inb_p(pcwd_private.io_addr + 1);
+
+ /* clear reset status & Keep Relay 2 disable state as it is */
+ outb_p((control_status & WD_REVC_R2DS), pcwd_private.io_addr + 1);
+
spin_unlock(&pcwd_private.io_lock);
}
return 0;