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/*
* Copyright (c) 2006-2022, Synwit Technology Co.,Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-03-14 wcx1024979076 first version
*/
#include "drv_wdt.h"
#ifdef BSP_USING_WDT
#define DBG_LEVEL DBG_LOG
#include <rtdbg.h>
#define LOG_TAG "DRV.WDT"
struct rt_watchdog_device wdt_device;
static rt_err_t _wdt_configure(rt_watchdog_t *wdt_device)
{
struct bflb_device_s* wdt = bflb_device_get_by_name("watchdog");
struct bflb_wdg_config_s wdg_cfg;
wdg_cfg.clock_source = BFLB_SYSTEM_XCLK;
wdg_cfg.clock_div = 40;
wdg_cfg.comp_val = 10000000;
wdg_cfg.mode = WDG_MODE_RESET;
bflb_wdg_init(wdt, &wdg_cfg);
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 bflb_device_s* wdt = bflb_device_get_by_name("watchdog");
struct bflb_wdg_config_s wdg_cfg;
switch (cmd)
{
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
bflb_wdg_reset_countervalue(wdt);
break;
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
wdg_cfg.clock_source = BFLB_SYSTEM_XCLK;
wdg_cfg.clock_div = 40;
wdg_cfg.comp_val = 10000000 * (*(rt_uint32_t *)arg);
wdg_cfg.mode = WDG_MODE_RESET;
bflb_wdg_init(wdt, &wdg_cfg);
bflb_wdg_start(wdt);
wdt_device->parent.user_data = (rt_uint32_t)(*(rt_uint32_t *)arg);
break;
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
*(rt_uint32_t *)arg = (rt_uint32_t)wdt_device->parent.user_data;
break;
case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
*(rt_uint32_t *)arg = bflb_wdg_get_countervalue(wdt) / 10000000;
break;
case RT_DEVICE_CTRL_WDT_START:
bflb_wdg_start(wdt);
break;
case RT_DEVICE_CTRL_WDT_STOP:
bflb_wdg_stop(wdt);
break;
default:
LOG_W("This command is not supported.");
return -RT_EINVAL;
}
return RT_EOK;
}
static const struct rt_watchdog_ops _wdt_ops =
{
.init = _wdt_configure,
.control = _wdt_control
};
int rt_hw_wdt_init(void)
{
int result = RT_EOK;
wdt_device.ops = &_wdt_ops;
result = rt_hw_watchdog_register(&wdt_device, "wdt", RT_DEVICE_FLAG_RDWR, RT_NULL);
if(result != RT_EOK)
{
LOG_E("wdt device register fail.");
}
return result;
}
INIT_BOARD_EXPORT(rt_hw_wdt_init);
#endif /* BSP_USING_WDT */
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