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[Kernel] Add device ops feature.

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This commit is contained in:
Bernard Xiong
2018-06-10 17:59:17 +08:00
parent bca65f30a9
commit 884fb70fe9
37 changed files with 795 additions and 200 deletions
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include/rtdef.h
+17 -2
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@@ -848,6 +848,17 @@ enum rt_device_class_type
#define RT_DEVICE_CTRL_RTC_SET_ALARM 0x13 /**< set alarm */
typedef struct rt_device *rt_device_t;
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_size_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
rt_size_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);
};
/**
* Device structure
*/
@@ -866,6 +877,9 @@ struct rt_device
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);
@@ -873,6 +887,7 @@ struct rt_device
rt_size_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
rt_size_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
#if defined(RT_USING_POSIX)
const struct dfs_file_ops *fops;
@@ -1030,8 +1045,8 @@ struct rt_module
rt_uint32_t user_data; /**< arch data in the module */
/* object in this module, module object is the last basic object type */
struct rt_object_information module_object[RT_Object_Class_Unknown];
void (*module_init)(void);
void (*module_cleanup)(void);
};
typedef struct rt_module *rt_module_t;