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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-04-20 tyustli the first version.
*
*/
#include <rtthread.h>
#ifdef BSP_USING_WDT
#if !defined(BSP_USING_WDT1) && !defined(BSP_USING_WDT3)
#error "Please define at least one BSP_USING_WDOGx"
#endif
#define LOG_TAG "drv.wdt"
#include <drv_log.h>
#include "drv_wdt.h"
#include <rthw.h>
#include "rtdevice.h"
#if defined(BSP_USING_WDT3)
#include "fsl_rtwdog.h"
static rt_watchdog_t imxrt_watchdog3;
static rtwdog_config_t rtwdog_config_t_value;
static rt_err_t imxrt_hp_wdog3_close(rt_watchdog_t *wdt)
{
rt_uint32_t level;
RTWDOG_Type *base;
base = (RTWDOG_Type *)wdt->parent.user_data;
level = rt_hw_interrupt_disable();
RTWDOG_Unlock(base);
RTWDOG_Disable(base);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t imxrt_hp_wdog3_open(rt_watchdog_t *wdt, rt_uint16_t oflag)
{
RTWDOG_Type *base;
base = (RTWDOG_Type *)wdt->parent.user_data;
rt_uint32_t level;
level = rt_hw_interrupt_disable();
RTWDOG_Unlock(base);
RTWDOG_Enable(base);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t imxrt_hp_wdog3_init(rt_watchdog_t *wdt)
{
RTWDOG_Type *base;
base = (RTWDOG_Type *)wdt->parent.user_data;
RTWDOG_GetDefaultConfig(&rtwdog_config_t_value);
RTWDOG_Init(base, &rtwdog_config_t_value);
imxrt_hp_wdog3_close(wdt);
return RT_EOK;
}
static rt_err_t imxrt_hp_wdog3_refresh(rt_watchdog_t *wdt)
{
RTWDOG_Type *base;
base = (RTWDOG_Type *)wdt->parent.user_data;
rt_uint32_t level;
level = rt_hw_interrupt_disable();
RTWDOG_Refresh(base);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
/**
* @function control rtwdog
*
* @param
* wdt whick wdog used
* cmd control wdog options
* args argument of conrtol
* @retval rt_err_t the status of control result
*
* @attention rtwdog unit is not seconds because seconds for system is to inaccurate
*
*/
static rt_err_t imxrt_hp_wdog3_control(rt_watchdog_t *wdt, int cmd, void *args)
{
RT_ASSERT(wdt != NULL);
RTWDOG_Type *base;
base = (RTWDOG_Type *)wdt->parent.user_data;
switch(cmd)
{
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
{
*(uint16_t *)args = base->TOVAL;
}
break;
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
{
RT_ASSERT(*(uint16_t *)args != 0);
RTWDOG_Unlock(base);
RTWDOG_SetTimeoutValue(base, *(uint16_t *)args);
imxrt_hp_wdog3_close(wdt);
}
break;
case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
{
*(uint16_t *)args = base->TOVAL - base->CNT;
}
break;
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
{
imxrt_hp_wdog3_refresh(wdt);
}
break;
case RT_DEVICE_CTRL_WDT_START:
{
imxrt_hp_wdog3_open(wdt, *(rt_uint32_t *)args);
}
break;
case RT_DEVICE_CTRL_WDT_STOP:
{
imxrt_hp_wdog3_close(wdt);
}
break;
default:
return -RT_EINVAL;
}
return RT_EOK;
}
static struct rt_watchdog_ops imxrt_wdog3_ops =
{
.init = imxrt_hp_wdog3_init,
.control = imxrt_hp_wdog3_control,
};
#endif /* BSP_USING_WDT3 */
#if defined(BSP_USING_WDT1)
#include "fsl_wdog.h"
static rt_watchdog_t imxrt_watchdog;
static wdog_config_t WDOG_1_config =
{
.timeoutValue = 10,
.enablePowerDown = false,
.softwareResetExtension = false,
.enableTimeOutAssert = false,
.enableWdog = true,
.workMode =
{
.enableWait = false,
.enableStop = false,
.enableDebug = false,
},
.enableInterrupt = false,
.interruptTimeValue = 0,
};
static rt_err_t imxrt_hp_wdog_close(rt_watchdog_t *wdt)
{
rt_uint32_t level;
WDOG_Type *base;
base = (WDOG_Type *)wdt->parent.user_data;
level = rt_hw_interrupt_disable();
WDOG_Disable(base);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t imxrt_hp_wdog_open(rt_watchdog_t *wdt, rt_uint16_t oflag)
{
WDOG_Type *base;
base = (WDOG_Type *)wdt->parent.user_data;
rt_uint32_t level;
level = rt_hw_interrupt_disable();
WDOG_Enable(base);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
static rt_err_t imxrt_hp_wdog_init(rt_watchdog_t *wdt)
{
WDOG_Type *base;
base = (WDOG_Type *)wdt->parent.user_data;
WDOG_Init(base, &WDOG_1_config);
imxrt_hp_wdog_close(wdt);
return RT_EOK;
}
static rt_err_t imxrt_hp_wdog_refresh(rt_watchdog_t *wdt)
{
WDOG_Type *base;
base = (WDOG_Type *)wdt->parent.user_data;
rt_uint32_t level;
level = rt_hw_interrupt_disable();
WDOG_Refresh(base);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
/**
* @function control wdog
*
* @param
* wdt whick wdog used
* cmd control wdog options
* args argument of conrtol
* @retval rt_err_t the status of control result
*
* @attention wdog1/wdog2 is can not get left time(register not exist) and wdogs unit is seconds
*
*/
static rt_err_t imxrt_hp_wdog_control(rt_watchdog_t *wdt, int cmd, void *args)
{
RT_ASSERT(wdt != NULL);
WDOG_Type *base;
base = (WDOG_Type *)wdt->parent.user_data;
switch(cmd)
{
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
{
*(uint16_t *)args = (base->WCR >> 8) / 2;
}
break;
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
{
RT_ASSERT(*(uint16_t *)args != 0);
WDOG_SetTimeoutValue(base, (*(uint16_t *)args) * 2);
imxrt_hp_wdog_close(wdt);
}
break;
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
{
imxrt_hp_wdog_refresh(wdt);
}
break;
case RT_DEVICE_CTRL_WDT_START:
{
imxrt_hp_wdog_open(wdt, *(rt_uint32_t *)args);
}
break;
case RT_DEVICE_CTRL_WDT_STOP:
{
imxrt_hp_wdog_close(wdt);
}
break;
default:
return -RT_EINVAL;
}
return RT_EOK;
}
static struct rt_watchdog_ops imxrt_wdog_ops =
{
.init = imxrt_hp_wdog_init,
.control = imxrt_hp_wdog_control,
};
#endif /* BSP_USING_WDT1 */
int rt_hw_wdt_init(void)
{
rt_err_t ret = RT_EOK;
#if defined (BSP_USING_WDT1)
imxrt_watchdog.ops = &imxrt_wdog_ops;
ret = rt_hw_watchdog_register(&imxrt_watchdog, "wdog1", RT_DEVICE_FLAG_RDWR, WDOG1);
if (ret != RT_EOK)
{
LOG_E("rt device register failed %d\n", ret);
}
#endif /* BSP_USING_WDT1 */
#if defined(BSP_USING_WDT3)
imxrt_watchdog3.ops = &imxrt_wdog3_ops;
ret = rt_hw_watchdog_register(&imxrt_watchdog3, "wdog3", RT_DEVICE_FLAG_RDWR, RTWDOG);
if (ret != RT_EOK)
{
LOG_E("rt device register failed %d\n", ret);
}
#endif /* BSP_USING_WDT3 */
return ret;
}
INIT_DEVICE_EXPORT(rt_hw_wdt_init);
#endif /* BSP_USING_WDT */
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