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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-07-28 songchao first version
*/
#include <rtconfig.h>
#ifdef RT_USING_WDT
#include <rtthread.h>
#include <rtdbg.h>
#include "drv_wdt.h"
#include "fsl_wdog.h"
#include "imx6ull.h"
enum
{
#ifdef RT_USING_WDT1
DEV_WDT1,
#endif
#ifdef RT_USING_WDT2
DEV_WDT2,
#endif
#ifdef RT_USING_WDT3
DEV_WDT3,
#endif
DEV_MAX,
};
#ifdef RT_USING_WDT1
static wdog_config_t WDOG_1_config =
{
.timeoutValue = 0xffu,
.enablePowerDown = false,
.softwareResetExtension = false,
.softwareAssertion = true,
.softwareResetSignal = true,
.enableWdog = true,
.workMode =
{
.enableWait = false,
.enableStop = false,
.enableDebug = false,
},
.enableInterrupt = false,
.interruptTimeValue = 0x04u,
};
#endif
#ifdef RT_USING_WDT2
static wdog_config_t WDOG_2_config =
{
.timeoutValue = 0xffu,
.enablePowerDown = false,
.softwareResetExtension = false,
.softwareAssertion = true,
.softwareResetSignal = true,
.enableWdog = true,
.workMode =
{
.enableWait = false,
.enableStop = false,
.enableDebug = false,
},
.enableInterrupt = false,
.interruptTimeValue = 0x04u,
};
#endif
#ifdef RT_USING_WDT3
static wdog_config_t WDOG_3_config =
{
.timeoutValue = 0xffu,
.enablePowerDown = false,
.softwareResetExtension = false,
.softwareAssertion = true,
.softwareResetSignal = true,
.enableWdog = true,
.workMode =
{
.enableWait = false,
.enableStop = false,
.enableDebug = false,
},
.enableInterrupt = false,
.interruptTimeValue = 0x04u,
};
#endif
static rt_watchdog_t imx6ull_watchdog[DEV_MAX] =
{
#ifdef RT_USING_WDT1
{
.name = "wdt1",
.paddr = IMX6ULL_WATCHDOG1_BASE,
.config = &WDOG_1_config,
},
#endif
#ifdef RT_USING_WDT2
{
.name = "wdt2",
.paddr = IMX6ULL_WATCHDOG2_BASE,
.config = &WDOG_2_config,
},
#endif
#ifdef RT_USING_WDT3
{
.name = "wdt3",
.paddr = IMX6ULL_WATCHDOG3_BASE,
.config = &WDOG_3_config,
},
#endif
};
static rt_err_t imx6ull_wdog_init(rt_watchdog_t *wdt)
{
WDOG_Type *base = RT_NULL;
base = (WDOG_Type *)wdt->vaddr;
WDOG_Init(base, wdt->config);
WDOG_Disable(base);
return RT_EOK;
}
static rt_err_t imx6ull_wdog_control(rt_watchdog_t *wdt, int cmd, void *args)
{
RT_ASSERT(wdt != NULL);
WDOG_Type *base = RT_NULL;
base = (WDOG_Type *)wdt->vaddr;
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);
WDOG_Disable(base);
}
break;
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
{
WDOG_Refresh(base);
}
break;
case RT_DEVICE_CTRL_WDT_START:
{
WDOG_Enable(base);
}
break;
case RT_DEVICE_CTRL_WDT_STOP:
{
WDOG_Disable(base);
}
break;
default:
return RT_EINVAL;
}
return RT_EOK;
}
static struct rt_watchdog_ops imx6ull_wdog_ops =
{
.init = imx6ull_wdog_init,
.control = imx6ull_wdog_control,
};
int rt_hw_wdt_init(void)
{
rt_err_t ret = RT_EOK;
for(int idx = 0; idx < GET_ARRAY_NUM(imx6ull_watchdog); idx++)
{
imx6ull_watchdog[idx].ops = &imx6ull_wdog_ops;
imx6ull_watchdog[idx].vaddr = platform_get_periph_vaddr(imx6ull_watchdog[idx].paddr);
ret = rt_hw_watchdog_register(&imx6ull_watchdog[idx], imx6ull_watchdog[idx].name,
RT_DEVICE_FLAG_DEACTIVATE, RT_NULL);
if (ret != RT_EOK)
{
LOG_E("rt device register failed %d\n", ret);
}
}
return ret;
}
INIT_DEVICE_EXPORT(rt_hw_wdt_init);
#endif
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