111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
/*
|
|
* Copyright (c) 2006-2022, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2022-07-21 Rbb666 first version
|
|
*/
|
|
|
|
#include "drv_wdt.h"
|
|
|
|
#ifdef RT_USING_WDT
|
|
|
|
//#define DRV_DEBUG
|
|
#define LOG_TAG "drv.wdt"
|
|
#include <drv_log.h>
|
|
|
|
cyhal_wdt_t WDT;
|
|
|
|
static struct ifx_wdt_cfg wdt_cfg =
|
|
{
|
|
.name = "wdt",
|
|
.WDTx = &WDT,
|
|
};
|
|
|
|
static struct ifx_wdt wdt_drv;
|
|
|
|
static rt_err_t wdt_init(rt_watchdog_t *wdt)
|
|
{
|
|
return RT_EOK;
|
|
}
|
|
|
|
static rt_err_t wdt_control(rt_watchdog_t *wdt_device, int cmd, void *arg)
|
|
{
|
|
RT_ASSERT(wdt_device != RT_NULL);
|
|
|
|
struct ifx_wdt_cfg *cfg;
|
|
cfg = wdt_device->parent.user_data;
|
|
|
|
rt_uint32_t timeout_ms = 0;
|
|
|
|
switch (cmd)
|
|
{
|
|
/* feed the watchdog */
|
|
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
|
|
cyhal_wdt_kick(cfg->WDTx);
|
|
break;
|
|
|
|
/* set watchdog timeout */
|
|
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
|
|
{
|
|
timeout_ms = *((rt_uint32_t *)arg) * 1000;
|
|
|
|
rt_uint32_t max_timeout_ms = cyhal_wdt_get_max_timeout_ms();
|
|
|
|
if (timeout_ms >= max_timeout_ms)
|
|
timeout_ms = max_timeout_ms;
|
|
|
|
/* Initialize the WDT */
|
|
int result = cyhal_wdt_init(cfg->WDTx, (rt_uint32_t)timeout_ms);
|
|
/* WDT initialization failed. Stop program execution */
|
|
RT_ASSERT(result != RT_ERROR);
|
|
}
|
|
break;
|
|
|
|
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
|
|
timeout_ms = cyhal_wdt_get_timeout_ms(cfg->WDTx);
|
|
*(rt_uint32_t *)arg = timeout_ms / 1000;
|
|
break;
|
|
|
|
case RT_DEVICE_CTRL_WDT_START:
|
|
cyhal_wdt_start(cfg->WDTx);
|
|
break;
|
|
|
|
case RT_DEVICE_CTRL_WDT_STOP:
|
|
cyhal_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 ifx_wdt_ops =
|
|
{
|
|
wdt_init,
|
|
wdt_control
|
|
};
|
|
|
|
int rt_hw_wdt_init(void)
|
|
{
|
|
wdt_drv.cfg = &wdt_cfg;
|
|
wdt_drv.wdt_device.ops = &ifx_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 /* RT_USING_WDT */
|