45 строки
1.2 KiB
C
45 строки
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* (c) Copyright 2021 Hewlett Packard Enterprise Development LP.
|
|
*/
|
|
|
|
#include <linux/hrtimer.h>
|
|
#include <linux/watchdog.h>
|
|
|
|
#include "watchdog_core.h"
|
|
#include "watchdog_pretimeout.h"
|
|
|
|
static enum hrtimer_restart watchdog_hrtimer_pretimeout(struct hrtimer *timer)
|
|
{
|
|
struct watchdog_core_data *wd_data;
|
|
|
|
wd_data = container_of(timer, struct watchdog_core_data, pretimeout_timer);
|
|
|
|
watchdog_notify_pretimeout(wd_data->wdd);
|
|
return HRTIMER_NORESTART;
|
|
}
|
|
|
|
void watchdog_hrtimer_pretimeout_init(struct watchdog_device *wdd)
|
|
{
|
|
struct watchdog_core_data *wd_data = wdd->wd_data;
|
|
|
|
hrtimer_init(&wd_data->pretimeout_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
|
wd_data->pretimeout_timer.function = watchdog_hrtimer_pretimeout;
|
|
}
|
|
|
|
void watchdog_hrtimer_pretimeout_start(struct watchdog_device *wdd)
|
|
{
|
|
if (!(wdd->info->options & WDIOF_PRETIMEOUT) &&
|
|
!watchdog_pretimeout_invalid(wdd, wdd->pretimeout))
|
|
hrtimer_start(&wdd->wd_data->pretimeout_timer,
|
|
ktime_set(wdd->timeout - wdd->pretimeout, 0),
|
|
HRTIMER_MODE_REL);
|
|
else
|
|
hrtimer_cancel(&wdd->wd_data->pretimeout_timer);
|
|
}
|
|
|
|
void watchdog_hrtimer_pretimeout_stop(struct watchdog_device *wdd)
|
|
{
|
|
hrtimer_cancel(&wdd->wd_data->pretimeout_timer);
|
|
}
|