/* * 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 #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);