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/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-09-04 Alex First version for MCXC444
*/
#include <rtthread.h>
#include "drv_wdt.h"
#include "fsl_cop.h"
#include "fsl_clock.h"
struct mcx_cop
{
rt_watchdog_t watchdog;
SIM_Type *cop_base;
};
static struct mcx_cop cop_dev;
static rt_err_t cop_init(rt_watchdog_t *wdt)
{
cop_config_t config;
COP_GetDefaultConfig(&config);
config.timeoutMode = kCOP_ShortTimeoutMode;
config.clockSource = kCOP_LpoClock;
config.timeoutCycles = kCOP_2Power10CyclesOr2Power18Cycles;
config.enableStop = true;
config.enableDebug = true;
COP_Init(cop_dev.cop_base, &config);
return RT_EOK;
}
static rt_err_t cop_control(rt_watchdog_t *wdt, int cmd, void *arg)
{
switch (cmd)
{
case RT_DEVICE_CTRL_WDT_START:
{
return RT_EOK;
}
case RT_DEVICE_CTRL_WDT_STOP:
{
COP_Disable(cop_dev.cop_base);
return RT_EOK;
}
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
{
COP_Refresh(cop_dev.cop_base);
return RT_EOK;
}
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
return -RT_ERROR;
default:
return -RT_ERROR;
}
}
static struct rt_watchdog_ops cop_ops =
{
cop_init,
cop_control,
};
int rt_hw_cop_init(void)
{
cop_dev.cop_base = SIM;
cop_dev.watchdog.ops = &cop_ops;
if (rt_hw_watchdog_register(&cop_dev.watchdog, "cop", RT_DEVICE_FLAG_DEACTIVATE, RT_NULL) != RT_EOK)
{
rt_kprintf("cop register failed\n");
return -RT_ERROR;
}
return RT_EOK;
}
INIT_BOARD_EXPORT(rt_hw_cop_init);
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