Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-05-24 07:46:16 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

I2S simplifed audio buffer queuing

Browse Source
This commit is contained in:
Gregory Nutt
2013-11-10 14:51:33 -06:00
parent 9f10539750
commit 64a7e96f1f
4 changed files with 116 additions and 163 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/nuttx/audio/i2s.h
+15 -20
View File
@@ -46,6 +46,8 @@
#include <stdint.h>
#include <stdbool.h>
#include <nuttx/audio/audio.h>
#ifdef CONFIG_I2S
/****************************************************************************
@@ -99,9 +101,7 @@
*
* Input Parameters:
* dev - Device-specific state data
* buffer - A pointer to the buffer in which to recieve data
* nbytes - The length of data that can be received in the buffer in number
* of bytes.
* apb - A pointer to the audio buffer in which to recieve data
* callback - A user provided callback function that will be called at
* the completion of the transfer. The callback will be
* performed in the context of the worker thread.
@@ -123,7 +123,7 @@
*
****************************************************************************/
#define I2S_RECEIVE(d,b,n,c,a,t) ((d)->ops->i2s_receive(d,b,n,c,a,t))
#define I2S_RECEIVE(d,b,c,a,t) ((d)->ops->i2s_receive(d,b,c,a,t))
/****************************************************************************
* Name: I2S_TXSAMPLERATE
@@ -170,9 +170,8 @@
* Send a block of data on I2S.
*
* Input Parameters:
* dev - Device-specific state data
* buffer - A pointer to the buffer of data to be sent
* nbytes - the length of data to send from the buffer in number of bytes.
* dev - Device-specific state data
* apb - A pointer to the audio buffer from which to send data
* callback - A user provided callback function that will be called at
* the completion of the transfer. The callback will be
* performed in the context of the worker thread.
@@ -194,7 +193,7 @@
*
****************************************************************************/
#define I2S_SEND(d,b,n,c,a,t) ((d)->ops->i2s_send(d,b,n,c,a,t))
#define I2S_SEND(d,b,c,a,t) ((d)->ops->i2s_send(d,b,c,a,t))
/****************************************************************************
* Public Types
@@ -202,12 +201,8 @@
/* Transfer complete callbacks */
struct i2s_dev_s;
typedef CODE void (*i2s_rxcallback_t)(FAR struct i2s_dev_s *dev,
FAR void *buffer, size_t nbytes, FAR void *arg,
int result);
typedef CODE void (*i2s_txcallback_t)(FAR struct i2s_dev_s *dev,
FAR const void *buffer, size_t nbytes, FAR void *arg,
int result);
typedef CODE void (*i2s_callback_t)(FAR struct i2s_dev_s *dev,
FAR struct ap_buffer_s *apb, FAR void *arg, int result);
/* The I2S vtable */
@@ -217,17 +212,17 @@ struct i2s_ops_s
CODE uint32_t (*i2s_rxsamplerate)(FAR struct i2s_dev_s *dev, uint32_t rate);
CODE uint32_t (*i2s_rxdatawidth)(FAR struct i2s_dev_s *dev, int bits);
CODE int (*i2s_receive)(FAR struct i2s_dev_s *dev, FAR void *buffer,
size_t nbytes, i2s_rxcallback_t callback, FAR void *arg,
uint32_t timeout);
CODE int (*i2s_receive)(FAR struct i2s_dev_s *dev,
FAR struct ap_buffer_s *apb, i2s_callback_t callback,
FAR void *arg, uint32_t timeout);
/* Transmitter methods */
CODE uint32_t (*i2s_txsamplerate)(FAR struct i2s_dev_s *dev, uint32_t rate);
CODE uint32_t (*i2s_txdatawidth)(FAR struct i2s_dev_s *dev, int bits);
CODE int (*i2s_send)(FAR struct i2s_dev_s *dev, FAR const void *buffer,
size_t nbytes, i2s_txcallback_t callback, FAR void *arg,
uint32_t timeout);
CODE int (*i2s_send)(FAR struct i2s_dev_s *dev,
FAR struct ap_buffer_s *apb, i2s_callback_t callback,
FAR void *arg, uint32_t timeout);
};
/* I2S private data. This structure only defines the initial fields of the