1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-02-22 airm2m first version
*/
#include <rtthread.h>
#include <rtdevice.h>
static char device_name[] = "wdt";
static rt_device_t wdg_dev;
static struct rt_work wdt_feed;
static void wdt_feed_func(struct rt_work *work, void *work_data)
{
rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_KEEPALIVE, RT_NULL);
rt_work_submit(&wdt_feed, 1200);
}
static int wdt_feed_init(void)
{
rt_err_t ret = RT_EOK;
rt_uint32_t timeout = 2;
wdg_dev = rt_device_find(device_name);
if (!wdg_dev)
{
rt_kprintf("find %s failed!\n", device_name);
return -RT_ERROR;
}
ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout);
if (ret != RT_EOK)
{
rt_kprintf("set %s timeout failed!\n", device_name);
return -RT_ERROR;
}
ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_START, RT_NULL);
if (ret != RT_EOK)
{
rt_kprintf("start %s failed!\n", device_name);
return -RT_ERROR;
}
rt_work_init(&wdt_feed, wdt_feed_func, RT_NULL);
rt_work_submit(&wdt_feed, 1200);
return RT_EOK;
}
INIT_COMPONENT_EXPORT(wdt_feed_init);
|
