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[WATCHDOG] i6300esb.c: Fix the GETSTATUS and GETBOOTSTATUS ioctls.
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The WDIOC_GETSTATUS and WDIOC_GETBOOTSTATUS should return WDIOF_* flags
(and not counter values, ...)

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Wim Van Sebroeck committed Apr 8, 2009
1 parent bd4e6c1 commit 31838d9
Showing 1 changed file with 5 additions and 16 deletions.
21 changes: 5 additions & 16 deletions drivers/watchdog/i6300esb.c
Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,7 @@
#define ESB_WDT_INTTYPE (0x11 << 0) /* Interrupt type on timer1 timeout */

/* Reload register bits */
#define ESB_WDT_TIMEOUT (0x01 << 9) /* Watchdog timed out */
#define ESB_WDT_RELOAD (0x01 << 8) /* prevent timeout */

/* Magic constants */
Expand All @@ -87,7 +88,6 @@ static struct platform_device *esb_platform_device;
/* 30 sec default heartbeat (1 < heartbeat < 2*1023) */
#define WATCHDOG_HEARTBEAT 30
static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */

module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat,
"Watchdog heartbeat in seconds. (1<heartbeat<2046, default="
Expand Down Expand Up @@ -190,18 +190,6 @@ static int esb_timer_set_heartbeat(int time)
return 0;
}

static int esb_timer_read(void)
{
u32 count;

/* This isn't documented, and doesn't take into
* acount which stage is running, but it looks
* like a 20 bit count down, so we might as well report it.
*/
pci_read_config_dword(esb_pci, 0x64, &count);
return (int)count;
}

/*
* /dev/watchdog handling
*/
Expand Down Expand Up @@ -282,7 +270,7 @@ static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
sizeof(ident)) ? -EFAULT : 0;

case WDIOC_GETSTATUS:
return put_user(esb_timer_read(), p);
return put_user(0, p);

case WDIOC_GETBOOTSTATUS:
return put_user(triggered, p);
Expand Down Expand Up @@ -412,11 +400,12 @@ static unsigned char __devinit esb_getdevice(void)
/* Check if the watchdog was previously triggered */
esb_unlock_registers();
val2 = readw(ESB_RELOAD_REG);
triggered = (val2 & (0x01 << 9) >> 9);
if (val2 & ESB_WDT_TIMEOUT)
triggered = WDIOF_CARDRESET;

/* Reset trigger flag and timers */
esb_unlock_registers();
writew((0x11 << 8), ESB_RELOAD_REG);
writew((ESB_WDT_TIMEOUT | ESB_WDT_RELOAD), ESB_RELOAD_REG);

/* Done */
return 1;
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