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