diff options
| author | dann frazier <dannf@hp.com> | 2010-06-03 02:23:41 +0400 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2010-08-14 00:54:46 +0400 |
| commit | aae67f3602d8869c8ab1b34b6ba9206e9fff4b16 (patch) | |
| tree | e85f5ff3c9620ecb0501c403551b11254ad8ba6f /drivers/watchdog/hpwdt.c | |
| parent | 6f681c2eabbd8df062963c52abaa0c7c3b2c5a7d (diff) | |
| download | linux-aae67f3602d8869c8ab1b34b6ba9206e9fff4b16.tar.xz | |
watchdog: hpwdt (8/12): implement WDIOC_GETTIMELEFT
Let applications check the amount of time left before the watchdog will fire.
Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/hpwdt.c')
| -rw-r--r-- | drivers/watchdog/hpwdt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 00299919df39..554526cf3233 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -450,6 +450,11 @@ static int hpwdt_change_timer(int new_margin) return 0; } +static int hpwdt_time_left(void) +{ + return TICKS_TO_SECS(ioread16(hpwdt_timer_reg)); +} + /* * NMI Handler */ @@ -591,6 +596,10 @@ static long hpwdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_GETTIMEOUT: ret = put_user(soft_margin, p); break; + + case WDIOC_GETTIMELEFT: + ret = put_user(hpwdt_time_left(), p); + break; } return ret; } |