rt-thread/bsp/airm2m/air105/libraries/rt_drivers/drv_wdt.c

/*
 * Copyright (c) 2006-2022, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2022-02-22     airm2m       first version
 */

#include "board.h"
#include <drivers/watchdog.h>

#ifdef RT_USING_WDT

#define LOG_TAG             "drv.wdt"
#include <drv_log.h>


static rt_watchdog_t watchdog;
static struct rt_watchdog_ops ops;

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)
{
    switch (cmd)
    {
        /* feed the watchdog */
    case RT_DEVICE_CTRL_WDT_KEEPALIVE:
        WDT_Feed();
        break;
        /* set watchdog timeout */
    case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
        WDT_SetTimeout((*((rt_uint32_t*)arg))*1000);
        break;
    case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
        break;
    case RT_DEVICE_CTRL_WDT_START:

        break;
    default:
        LOG_W("This command is not supported.");
        return -RT_ERROR;
    }
    return RT_EOK;
}

int rt_wdt_init(void)
{
    ops.init = &wdt_init;
    ops.control = &wdt_control;
    watchdog.ops = &ops;
    /* register watchdog device */
    if (rt_hw_watchdog_register(&watchdog, "wdt", RT_DEVICE_FLAG_DEACTIVATE, RT_NULL) != RT_EOK)
    {
        LOG_E("wdt device register failed.");
        return -RT_ERROR;
    }
    LOG_D("wdt device register success.");
    return RT_EOK;
}
INIT_BOARD_EXPORT(rt_wdt_init);

#endif /* RT_USING_WDT */