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/*
* Copyright (c) 2019 Winner Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-11-9 fanwenl 1st version
*/
#include <rtdevice.h>
#include "wm_watchdog.h"
#ifdef BSP_USING_WDT
static rt_err_t wm_wdg_init(rt_watchdog_t *wdt)
{
/*init for 10S*/
tls_watchdog_init(1000000);
tls_watchdog_stop();
return RT_EOK;
}
static rt_err_t wm_wdg_control(rt_watchdog_t *wdt, int cmd, void *arg)
{
uint64_t timeout_us = 0;
switch (cmd)
{
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
timeout_us = *((rt_uint32_t *)arg) * 1000000;
if (timeout_us >= 0xFFFFFFFF)
timeout_us = 0xFFFFFFFF;
tls_watchdog_set_timeout((rt_uint32_t)timeout_us);
break;
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
timeout_us = tls_watchdog_get_timeout();
*((rt_uint32_t *)arg) = timeout_us / 1000000;
break;
case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
timeout_us = tls_watchdog_get_timeleft();
*((rt_uint32_t *)arg) = timeout_us / 1000000;
break;
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
tls_watchdog_clr();
break;
case RT_DEVICE_CTRL_WDT_START:
tls_watchdog_start();
break;
case RT_DEVICE_CTRL_WDT_STOP:
tls_watchdog_stop();
break;
default:
return -RT_EIO;
}
return RT_EOK;
}
static const struct rt_watchdog_ops wm_wdg_pos =
{
wm_wdg_init,
wm_wdg_control,
};
static rt_watchdog_t wm_wdg;
int wm_hw_wdg_init(void)
{
wm_wdg.ops = &wm_wdg_pos;
rt_hw_watchdog_register(&wm_wdg, "wdg", 0, RT_NULL);
return RT_EOK;
}
INIT_DEVICE_EXPORT(wm_hw_wdg_init);
#endif /*BSP_USING_WDT */
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