54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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/*
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* Copyright (c) 2006-2022, 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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* 2022-02-22 airm2m first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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static char device_name[] = "wdt";
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static rt_device_t wdg_dev;
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static struct rt_work wdt_feed;
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static void wdt_feed_func(struct rt_work *work, void *work_data)
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{
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rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_KEEPALIVE, RT_NULL);
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rt_work_submit(&wdt_feed, 1200);
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}
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static int wdt_feed_init(void)
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{
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rt_err_t ret = RT_EOK;
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rt_uint32_t timeout = 2;
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wdg_dev = rt_device_find(device_name);
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if (!wdg_dev)
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{
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rt_kprintf("find %s failed!\n", device_name);
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return RT_ERROR;
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}
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ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout);
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if (ret != RT_EOK)
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{
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rt_kprintf("set %s timeout failed!\n", device_name);
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return RT_ERROR;
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}
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ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_START, RT_NULL);
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if (ret != RT_EOK)
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{
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rt_kprintf("start %s failed!\n", device_name);
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return -RT_ERROR;
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}
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rt_work_init(&wdt_feed, wdt_feed_func, RT_NULL);
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rt_work_submit(&wdt_feed, 1200);
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return RT_EOK;
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}
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INIT_COMPONENT_EXPORT(wdt_feed_init);
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