101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
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#include <rthw.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "typedef.h"
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#include "drv_wdt.h"
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#include "wdt.h"
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#ifdef BEKEN_USING_WDT
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struct _wdt_dev
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{
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struct rt_device parent;
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};
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static struct _wdt_dev wdt_dev;
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static rt_err_t rt_wdt_control(rt_device_t dev, int cmd, void *args)
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{
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switch (cmd)
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{
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case WCMD_POWER_UP:
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case WCMD_SET_PERIOD:
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case WCMD_RELOAD_PERIOD:
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case WCMD_POWER_DOWN:
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wdt_ctrl(cmd, args);
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break;
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#ifdef RT_USING_WDT
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case RT_DEVICE_CTRL_WDT_START:
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wdt_ctrl(WCMD_POWER_UP, RT_NULL);
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break;
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case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
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wdt_ctrl(WCMD_SET_PERIOD, args);
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break;
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case RT_DEVICE_CTRL_WDT_KEEPALIVE:
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wdt_ctrl(WCMD_RELOAD_PERIOD, RT_NULL);
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break;
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case RT_DEVICE_CTRL_WDT_STOP:
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wdt_ctrl(WCMD_POWER_DOWN, RT_NULL);
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
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case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
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#endif
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default:
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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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#ifdef RT_USING_DEVICE_OPS
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const static struct rt_device_ops wdt_ops =
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{
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RT_NULL,
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RT_NULL,
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RT_NULL,
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RT_NULL,
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RT_NULL,
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rt_wdt_control
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};
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#endif /* RT_USING_DEVICE_OPS */
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int rt_hw_wdt_init(void)
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{
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struct rt_device *device;
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rt_memset(&wdt_dev, 0, sizeof(wdt_dev));
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device = &(wdt_dev.parent);
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/* Setting the drive type */
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device->type = RT_Device_Class_Miscellaneous;
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device->rx_indicate = RT_NULL;
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device->tx_complete = RT_NULL;
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/* Setting the driver interface */
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#ifdef RT_USING_DEVICE_OPS
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device->ops = &wdt_ops;
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#else
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device->init = RT_NULL;
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device->open = RT_NULL;
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device->close = RT_NULL;
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device->read = RT_NULL;
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device->write = RT_NULL;
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device->control = rt_wdt_control;
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#endif /* RT_USING_DEVICE_OPS */
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/* Setting the user data */
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device->user_data = RT_NULL;
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/* register device */
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return rt_device_register(device, WDT_DEV_NAME, RT_DEVICE_FLAG_DEACTIVATE);
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}
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INIT_DEVICE_EXPORT(rt_hw_wdt_init);
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int rt_hw_wdt_exit(void)
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{
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/* unregister device */
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return rt_device_unregister(&(wdt_dev.parent));
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}
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#endif
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