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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-06-05 Chushicheng the first version
*/
#include "drv_wdt.h"
#include <hardware/watchdog.h>
#define DBG_TAG "drv.wdt"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
static struct pico_wdt pico_wdt_obj;
static rt_err_t wdt_init(rt_watchdog_t *wdt)
{
return RT_EOK;
}
static rt_err_t wdt_control(rt_watchdog_t *wdt, int cmd, void *arg)
{
static rt_uint32_t delay_ms;
switch (cmd)
{
/* feed the watchdog */
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
watchdog_update();
break;
/* set watchdog timeout */
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
delay_ms = *((rt_uint32_t*)arg) * 1000;
watchdog_reboot(0, RT_NULL, delay_ms);
break;
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
(*((rt_uint32_t*)arg)) = watchdog_get_count();
break;
case RT_DEVICE_CTRL_WDT_START:
watchdog_enable(delay_ms, 1);
pico_wdt_obj.is_start = 1;
break;
default:
LOG_W("This command is not supported.");
return -RT_ERROR;
}
return RT_EOK;
}
static const struct rt_watchdog_ops ops =
{
.init = wdt_init,
.control = wdt_control,
};
int rt_hw_wdt_init(void)
{
int result = RT_EOK;
pico_wdt_obj.watchdog.ops = &ops;
/* register wdt device */
if (rt_hw_watchdog_register(&pico_wdt_obj.watchdog, "wdt", RT_DEVICE_FLAG_DEACTIVATE, RT_NULL) == RT_EOK)
{
LOG_D("wdt init success");
}
else
{
LOG_E("wdt register failed");
result = -RT_ERROR;
}
return result;
}
INIT_BOARD_EXPORT(rt_hw_wdt_init);
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