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[ringbuffer] ringbuffer size boost to 32bit (#6915)

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* ringbuffer size boost to 32bit
* 添加ringbuffer测试demo
related: #682
----
Co-authored-by: Zxy <1308465141@qq.com>
Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>
This commit is contained in:
螺丝松掉的人
2023-02-08 22:55:52 -05:00
committed by GitHub
co-authored by Zxy Man, Jianting (Meco) <920369182@qq.com>
parent f58d3c5200
commit 20459ec4d3
3 changed files with 130 additions and 27 deletions
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components/drivers/include/ipc/ringbuffer.h
+14 -17
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@@ -37,18 +37,15 @@ struct rt_ringbuffer
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 ||| 0 | 1 | 2 | 3 | 4 | 5 | 6 | Empty
* +---+---+---+---+---+---+---+|+~~~+~~~+~~~+~~~+~~~+~~~+~~~+
* read_idx-^ ^-write_idx
*
* The tradeoff is we could only use 32KiB of buffer for 16 bit of index.
* But it should be enough for most of the cases.
*
* Ref: http://en.wikipedia.org/wiki/Circular_buffer#Mirroring */
rt_uint16_t read_mirror : 1;
rt_uint16_t read_index : 15;
rt_uint16_t write_mirror : 1;
rt_uint16_t write_index : 15;
*/
rt_uint32_t read_mirror : 1;
rt_uint32_t read_index : 31;
rt_uint32_t write_mirror : 1;
rt_uint32_t write_index : 31;
/* as we use msb of index as mirror bit, the size should be signed and
* could only be positive. */
rt_int16_t buffer_size;
rt_int32_t buffer_size;
};
enum rt_ringbuffer_state
@@ -65,19 +62,19 @@ enum rt_ringbuffer_state
* Please note that the ring buffer implementation of RT-Thread
* has no thread wait or resume feature.
*/
void rt_ringbuffer_init(struct rt_ringbuffer *rb, rt_uint8_t *pool, rt_int16_t size);
void rt_ringbuffer_init(struct rt_ringbuffer *rb, rt_uint8_t *pool, rt_int32_t size);
void rt_ringbuffer_reset(struct rt_ringbuffer *rb);
rt_size_t rt_ringbuffer_put(struct rt_ringbuffer *rb, const rt_uint8_t *ptr, rt_uint16_t length);
rt_size_t rt_ringbuffer_put_force(struct rt_ringbuffer *rb, const rt_uint8_t *ptr, rt_uint16_t length);
rt_size_t rt_ringbuffer_put(struct rt_ringbuffer *rb, const rt_uint8_t *ptr, rt_uint32_t length);
rt_size_t rt_ringbuffer_put_force(struct rt_ringbuffer *rb, const rt_uint8_t *ptr, rt_uint32_t length);
rt_size_t rt_ringbuffer_putchar(struct rt_ringbuffer *rb, const rt_uint8_t ch);
rt_size_t rt_ringbuffer_putchar_force(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_get(struct rt_ringbuffer *rb, rt_uint8_t *ptr, rt_uint32_t length);
rt_size_t rt_ringbuffer_peek(struct rt_ringbuffer *rb, rt_uint8_t **ptr);
rt_size_t rt_ringbuffer_getchar(struct rt_ringbuffer *rb, rt_uint8_t *ch);
rt_size_t rt_ringbuffer_data_len(struct rt_ringbuffer *rb);
#ifdef RT_USING_HEAP
struct rt_ringbuffer* rt_ringbuffer_create(rt_uint16_t length);
struct rt_ringbuffer* rt_ringbuffer_create(rt_uint32_t length);
void rt_ringbuffer_destroy(struct rt_ringbuffer *rb);
#endif
@@ -88,14 +85,14 @@ void rt_ringbuffer_destroy(struct rt_ringbuffer *rb);
*
* @return Buffer size.
*/
rt_inline rt_uint16_t rt_ringbuffer_get_size(struct rt_ringbuffer *rb)
rt_inline rt_uint32_t rt_ringbuffer_get_size(struct rt_ringbuffer *rb)
{
RT_ASSERT(rb != RT_NULL);
return rb->buffer_size;
}
/** return the size of empty space in rb */
#define rt_ringbuffer_space_len(rb) ((rb)->buffer_size - (rt_int16_t)rt_ringbuffer_data_len(rb))
#define rt_ringbuffer_space_len(rb) ((rb)->buffer_size - rt_ringbuffer_data_len(rb))
#ifdef __cplusplus