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/*
* Copyright (c) 2006-2018, Synwit Technology Co.,Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-12-10 Zohar_Lee first version
* 2020-07-10 lik format file
*/
#include "drv_wdt.h"
#ifdef RT_USING_WDT
#ifdef BSP_USING_WDT
//#define DRV_DEBUG
#define LOG_TAG "drv.wdt"
#include <drv_log.h>
static struct swm_wdt_cfg wdt_cfg =
{
.name = "wdt",
.WDTx = WDT,
};
static struct swm_wdt wdt_drv;
static rt_err_t swm_wdt_init(rt_watchdog_t *wdt_device)
{
return RT_EOK;
}
static rt_err_t swm_wdt_control(rt_watchdog_t *wdt_device, int cmd, void *arg)
{
struct swm_wdt_cfg *cfg;
RT_ASSERT(wdt_device != RT_NULL);
cfg = wdt_device->parent.user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
WDT_Feed(cfg->WDTx);
break;
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
WDT_Init(cfg->WDTx, (SystemCoreClock * (*(rt_uint32_t *)arg)), WDT_MODE_RESET);
break;
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
*(rt_uint32_t *)arg = (cfg->WDTx->LOAD) / SystemCoreClock;
break;
case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
*(rt_uint32_t *)arg = WDT_GetValue(cfg->WDTx) / SystemCoreClock;
break;
case RT_DEVICE_CTRL_WDT_START:
WDT_Start(cfg->WDTx);
break;
case RT_DEVICE_CTRL_WDT_STOP:
WDT_Stop(cfg->WDTx);
break;
default:
LOG_W("This command is not supported.");
return -RT_ERROR;
}
return RT_EOK;
}
const static struct rt_watchdog_ops swm_wdt_ops =
{
swm_wdt_init,
swm_wdt_control};
int rt_hw_wdt_init(void)
{
wdt_drv.cfg = &wdt_cfg;
wdt_drv.wdt_device.ops = &swm_wdt_ops;
if (rt_hw_watchdog_register(&wdt_drv.wdt_device, wdt_drv.cfg->name, RT_DEVICE_FLAG_RDWR, wdt_drv.cfg) != RT_EOK)
{
LOG_E("wdt device register failed.");
return -RT_ERROR;
}
LOG_D("wdt device register success.");
return RT_EOK;
}
INIT_BOARD_EXPORT(rt_hw_wdt_init);
#endif /* BSP_USING_WDT */
#endif /* RT_USING_WDT */
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