fsl_soundcard.h File Reference

#include "fsl_os_abstraction.h"
#include "fsl_edma_driver.h"
#include "fsl_sai_driver.h"
#include "fsl_sgtl5000_driver.h"

Data Structures
struct	snd_state_t
	Soundcard status includes the information which the application can see. More...
struct	audio_ctrl_operation_t
	The operations of an audio controller, for example SAI, SSI and so on. More...
struct	audio_codec_operation_t
	Audio codec operation structure. More...
struct	audio_controller_t
	The definition of the audio device which may be a controller. More...
struct	audio_codec_t
	The Codec structure. More...
struct	audio_buffer_t
	Audio buffer structure. More...
struct	sound_card_t
	A sound card includes the audio controller and a Codec. More...

Macros
#define	AUDIO_CONTROLLER   AUDIO_CONTROLLER_SAI
	Define audio controller sai.
#define	AUDIO_CONTROLLER_SAI   1
#define	AUDIO_CODEC   AUDIO_CODEC_SGTL5000
	Define audio codec sgtl5000.
#define	AUDIO_CODEC_SGTL5000   1
#define	AUDIO_BUFFER_BLOCK_SIZE   128
	Buffer block size setting.
#define	AUDIO_BUFFER_BLOCK   2
	Buffer block number setting.
#define	AUDIO_BUFFER_SIZE   (AUDIO_BUFFER_BLOCK * AUDIO_BUFFER_BLOCK_SIZE)
#define	AUDIO_TX   1
	Audio transfer direction Tx.
#define	AUDIO_RX   0
	Audio transfer direction Rx.

Typedefs
typedef sai_handler_t	ctrl_handler_t
typedef sai_user_config_t	ctrl_config_t
typedef sai_data_format_t	ctrl_data_format_t
typedef sai_callback_t	ctrl_callback_t
typedef sai_status_t	ctrl_status_t
typedef sgtl_handler_t	codec_handler_t
typedef sgtl_status_t	codec_status_t

Enumerations
enum	snd_status_t {   kStatus_SND_Success = 0U,   kStatus_SND_Fail = 1U,   kStatus_SND_DmaFail = 2U,   kStatus_SND_CtrlFail = 3U,   kStatus_SND_CodecFail = 4U,   kStatus_SND_BufferAllocateFail = 5U }
	Soundcard return status. More...

Functions
snd_status_t	snd_init (sound_card_t *card, void *ctrl_config, void *codec_config)
	Initializes the Soundcard. More...
snd_status_t	snd_deinit (sound_card_t *card)
	Deinitializes the sound card instance. More...
snd_status_t	snd_data_format_configure (sound_card_t *card, ctrl_data_format_t *format)
	Configures the audio data format running in the Soundcard. More...
uint32_t	snd_update_tx_status (sound_card_t *card, uint32_t len)
	Updates the status of the TX. More...
uint32_t	snd_update_rx_status (sound_card_t *card, uint32_t len)
	Updates status of the RX. More...
void	snd_get_status (snd_state_t *status, sound_card_t *card)
	Gets the status of the Soundcard. More...
void	snd_start_tx (sound_card_t *card)
	Starts the Soundcard TX process. More...
void	snd_start_rx (sound_card_t *card)
	Starts the Soundcard RX process. More...
static void	snd_stop_tx (sound_card_t *card)
	Stops Soundcard TX process. More...
static void	snd_stop_rx (sound_card_t *card)
	Stops the Soundcard RX process. More...
void	snd_wait_event (sound_card_t *card)
	Waits for the semaphore of the write/read data from the internal buffer. More...

Variables
audio_ctrl_operation_t	g_sai_ops
audio_codec_operation_t	g_sgtl_ops