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add osal queue service & its test code

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- create, send
This commit is contained in:
hathach
2013-01-30 17:53:37 +07:00
parent 9c9fa182d4
commit c1bf187dad
3 changed files with 84 additions and 19 deletions
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53
tinyusb/osal/osal_none.h
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@@ -91,11 +91,11 @@ typedef uint32_t osal_timeout_t;
typedef uint8_t osal_semaphore_t;
typedef osal_semaphore_t * osal_semaphore_handle_t;
static inline osal_semaphore_handle_t osal_semaphore_create(osal_semaphore_t * const sem) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline osal_semaphore_handle_t osal_semaphore_create(osal_semaphore_t * const sem)
static inline osal_semaphore_handle_t osal_semaphore_create(osal_semaphore_t * const p_sem) ATTR_ALWAYS_INLINE;
static inline osal_semaphore_handle_t osal_semaphore_create(osal_semaphore_t * const p_sem)
{
(*sem) = 0;
return (osal_semaphore_handle_t) sem;
(*p_sem) = 0;
return (osal_semaphore_handle_t) p_sem;
}
static inline tusb_error_t osal_semaphore_post(osal_semaphore_handle_t const sem_hdl) ATTR_ALWAYS_INLINE;
@@ -119,19 +119,48 @@ static inline tusb_error_t osal_semaphore_post(osal_semaphore_handle_t const se
// QUEUE API
//--------------------------------------------------------------------+
typedef struct{
uint8_t *buf ; ///< buffer pointer
uint16_t size ; ///< buffer size
volatile uint16_t len ; ///< bytes in fifo
volatile uint16_t wr_ptr ; ///< write pointer
volatile uint16_t rd_ptr ; ///< read pointer
uint32_t * const buffer ; ///< buffer pointer
uint16_t const depth ; ///< buffer size
volatile uint16_t count ; ///< bytes in fifo
volatile uint16_t wr_idx ; ///< write pointer
volatile uint16_t rd_idx ; ///< read pointer
} osal_queue_t;
typedef osal_queue_t * osal_queue_handle_t;
// use to declare a queue, within the scope of tinyusb, should only use primitive type only
#define OSAL_DEF_QUEUE(name, queue_depth, type)\
uint32_t name##_buffer[queue_depth];\
osal_queue_t name = {\
.buffer = name##_buffer,\
.depth = queue_depth\
}
static inline osal_queue_handle_t osal_queue_create(osal_queue_t * const p_queue) ATTR_ALWAYS_INLINE;
static inline osal_queue_handle_t osal_queue_create(osal_queue_t * const p_queue)
{
p_queue->count = p_queue->wr_idx = p_queue->rd_idx = 0;
return (osal_queue_handle_t) p_queue;
}
static inline tusb_error_t osal_queue_send(osal_queue_handle_t const queue_hdl, uint32_t data) ATTR_ALWAYS_INLINE;
static inline tusb_error_t osal_queue_send(osal_queue_handle_t const queue_hdl, uint32_t data)
{
queue_hdl->buffer[queue_hdl->wr_idx] = data;
queue_hdl->wr_idx = (queue_hdl->wr_idx + 1) % queue_hdl->depth;
if (queue_hdl->depth == queue_hdl->count) // queue is full, 1st rd is overwritten
{
queue_hdl->rd_idx = queue_hdl->wr_idx; // keep full state
}else
{
queue_hdl->count++;
}
return TUSB_ERROR_NONE;
}
// queue_send, queue_receive
#define OSAL_DEF_QUEUE(name, size)\
osal_queue_t name;\
uint8_t buffer_##name[size]
#ifdef __cplusplus
}