78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-06-05 Chushicheng the first version
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*/
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#include "drv_wdt.h"
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#include <hardware/watchdog.h>
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#define DBG_TAG "drv.wdt"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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static struct pico_wdt pico_wdt_obj;
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static rt_err_t wdt_init(rt_watchdog_t *wdt)
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{
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return RT_EOK;
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}
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static rt_err_t wdt_control(rt_watchdog_t *wdt, int cmd, void *arg)
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{
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static rt_uint32_t delay_ms;
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switch (cmd)
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{
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/* feed the watchdog */
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case RT_DEVICE_CTRL_WDT_KEEPALIVE:
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watchdog_update();
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break;
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/* set watchdog timeout */
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case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
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delay_ms = *((rt_uint32_t*)arg) * 1000;
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watchdog_reboot(0, RT_NULL, delay_ms);
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
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(*((rt_uint32_t*)arg)) = watchdog_get_count();
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break;
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case RT_DEVICE_CTRL_WDT_START:
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watchdog_enable(delay_ms, 1);
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pico_wdt_obj.is_start = 1;
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break;
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default:
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LOG_W("This command is not supported.");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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static const struct rt_watchdog_ops ops =
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{
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.init = wdt_init,
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.control = wdt_control,
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};
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int rt_hw_wdt_init(void)
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{
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int result = RT_EOK;
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pico_wdt_obj.watchdog.ops = &ops;
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/* register wdt device */
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if (rt_hw_watchdog_register(&pico_wdt_obj.watchdog, "wdt", RT_DEVICE_FLAG_DEACTIVATE, RT_NULL) == RT_EOK)
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{
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LOG_D("wdt init success");
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}
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else
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{
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LOG_E("wdt register failed");
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result = -RT_ERROR;
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}
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return result;
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}
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INIT_BOARD_EXPORT(rt_hw_wdt_init);
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