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Commit 4206f0c4 authored by Wim Van Sebroeck's avatar Wim Van Sebroeck
Browse files

[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: default avatarWim Van Sebroeck <wim@iguana.be>
parent 683aa401

drivers/char/watchdog/pcwd.c

+29 −18
Original line number Diff line number Diff line
@@ -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 ": "
@@ -105,6 +105,10 @@ 
#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;