90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2006-2023, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2023-04-12 ErikChan the first version
|
|
*/
|
|
|
|
#ifndef __DEVICE_H__
|
|
#define __DEVICE_H__
|
|
|
|
#include <rtdef.h>
|
|
|
|
typedef struct rt_driver *rt_driver_t;
|
|
typedef struct rt_device *rt_device_t;
|
|
|
|
/**
|
|
* Notify structure
|
|
*/
|
|
struct rt_device_notify
|
|
{
|
|
void (*notify)(rt_device_t dev);
|
|
struct rt_device *dev;
|
|
};
|
|
|
|
/**
|
|
* Device structure
|
|
*/
|
|
struct rt_device
|
|
{
|
|
struct rt_object parent; /**< inherit from rt_object */
|
|
rt_list_t node;
|
|
struct rt_bus *bus;
|
|
void *priv;
|
|
|
|
#ifdef RT_USING_DM
|
|
rt_driver_t drv;
|
|
void *ofw_node;
|
|
#endif
|
|
enum rt_device_class_type type; /**< device type */
|
|
rt_uint16_t flag; /**< device flag */
|
|
rt_uint16_t open_flag; /**< device open flag */
|
|
|
|
rt_uint8_t ref_count; /**< reference count */
|
|
rt_uint8_t device_id; /**< 0 - 255 */
|
|
|
|
/* device call back */
|
|
rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size);
|
|
rt_err_t (*tx_complete)(rt_device_t dev, void *buffer);
|
|
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
const struct rt_device_ops *ops;
|
|
#else
|
|
/* common device interface */
|
|
rt_err_t (*init) (rt_device_t dev);
|
|
rt_err_t (*open) (rt_device_t dev, rt_uint16_t oflag);
|
|
rt_err_t (*close) (rt_device_t dev);
|
|
rt_ssize_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
|
|
rt_ssize_t (*write) (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size);
|
|
rt_err_t (*control)(rt_device_t dev, int cmd, void *args);
|
|
#endif /* RT_USING_DEVICE_OPS */
|
|
|
|
#ifdef RT_USING_POSIX_DEVIO
|
|
const struct dfs_file_ops *fops;
|
|
struct rt_wqueue wait_queue;
|
|
#endif /* RT_USING_POSIX_DEVIO */
|
|
|
|
void *user_data; /**< device private data */
|
|
};
|
|
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
/**
|
|
* operations set for device object
|
|
*/
|
|
struct rt_device_ops
|
|
{
|
|
/* common device interface */
|
|
rt_err_t (*init) (rt_device_t dev);
|
|
rt_err_t (*open) (rt_device_t dev, rt_uint16_t oflag);
|
|
rt_err_t (*close) (rt_device_t dev);
|
|
rt_ssize_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
|
|
rt_ssize_t (*write) (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size);
|
|
rt_err_t (*control)(rt_device_t dev, int cmd, void *args);
|
|
};
|
|
#endif /* RT_USING_DEVICE_OPS */
|
|
|
|
#endif /* __DEVICE_H__ */
|