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Added device driver's IPC.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2098 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com
2012-04-23 06:02:28 +00:00
parent 5e1494dd32
commit da44d15132
4 changed files with 307 additions and 0 deletions
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components/drivers/include/rtdevice.h
+38
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@@ -5,6 +5,44 @@
#define RT_DEVICE(device) ((rt_device_t)device)
/* completion flag */
struct rt_completion
{
rt_uint32_t flag;
/* suspended list */
rt_list_t suspended_list;
};
/* ring buffer */
struct rt_ringbuffer
{
rt_uint16_t read_index, write_index;
rt_uint8_t *buffer_ptr;
rt_uint16_t buffer_size;
};
/**
* Completion
*/
void rt_completion_init(struct rt_completion* completion);
rt_err_t rt_completion_wait(struct rt_completion* completion, rt_int32_t timeout);
void rt_completion_done(struct rt_completion* completion);
/**
* DataLink for DeviceDriver
*/
/**
* RingBuffer for DeviceDriver
*/
void rt_ringbuffer_init(struct rt_ringbuffer* rb, rt_uint8_t *pool, rt_uint16_t size);
rt_size_t rt_ringbuffer_put(struct rt_ringbuffer* rb, const rt_uint8_t *ptr, rt_uint16_t length);
rt_size_t rt_ringbuffer_putchar(struct rt_ringbuffer* rb, const rt_uint8_t ch);
rt_size_t rt_ringbuffer_get(struct rt_ringbuffer* rb, rt_uint8_t *ptr, rt_uint16_t length);
rt_size_t rt_ringbuffer_available_size(struct rt_ringbuffer* rb);
rt_size_t rt_ringbuffer_emptry_size(struct rt_ringbuffer* rb);
#ifdef RT_USING_SPI
#include "drivers/spi.h"
#endif