fsl_sai_edma.c File Reference

#include "fsl_sai_edma.h"

Include dependency graph for fsl_sai_edma.c:

Go to the source code of this file.

Classes
struct	sai_edma_private_handle

Macros
#define	FSL_COMPONENT_ID   "platform.drivers.sai_edma"
#define	STCD_ADDR(address)   (edma_tcd_t *)(((uint32_t)(address) + 32UL) & ~0x1FU)

Typedefs
typedef struct sai_edma_private_handle	sai_edma_private_handle_t

Enumerations
enum	{ kSAI_Busy = 0x0U, kSAI_Idle }
	sai_edma_transfer_state, sai edma transfer state. More...

Functions
static uint32_t	SAI_GetInstance (I2S_Type *base)
	Get the instance number for SAI. More...
static void	SAI_RxEDMACallback (edma_handle_t *handle, void *userData, bool done, uint32_t tcds)
	SAI EDMA callback for receive. More...
void	SAI_TransferAbortReceiveEDMA (I2S_Type *base, sai_edma_handle_t *handle)
	Aborts a SAI receive using eDMA. More...
void	SAI_TransferAbortSendEDMA (I2S_Type *base, sai_edma_handle_t *handle)
	Aborts a SAI transfer using eDMA. More...
status_t	SAI_TransferGetReceiveCountEDMA (I2S_Type *base, sai_edma_handle_t *handle, size_t *count)
	Gets byte count received by SAI. More...
status_t	SAI_TransferGetSendCountEDMA (I2S_Type *base, sai_edma_handle_t *handle, size_t *count)
	Gets byte count sent by SAI. More...
status_t	SAI_TransferReceiveEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer)
	Performs a non-blocking SAI receive using eDMA. More...
void	SAI_TransferRxCreateHandleEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *rxDmaHandle)
	Initializes the SAI Rx eDMA handle. More...
void	SAI_TransferRxSetConfigEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_transceiver_t *saiConfig)
	Configures the SAI Rx. More...
void	SAI_TransferRxSetFormatEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_format_t *format, uint32_t mclkSourceClockHz, uint32_t bclkSourceClockHz)
	Configures the SAI Rx audio format. More...
status_t	SAI_TransferSendEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer)
	Performs a non-blocking SAI transfer using DMA. More...
void	SAI_TransferTerminateReceiveEDMA (I2S_Type *base, sai_edma_handle_t *handle)
	Terminate all SAI receive. More...
void	SAI_TransferTerminateSendEDMA (I2S_Type *base, sai_edma_handle_t *handle)
	Terminate all SAI send. More...
void	SAI_TransferTxCreateHandleEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *txDmaHandle)
	Initializes the SAI eDMA handle. More...
void	SAI_TransferTxSetConfigEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_transceiver_t *saiConfig)
	Configures the SAI Tx. More...
void	SAI_TransferTxSetFormatEDMA (I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_format_t *format, uint32_t mclkSourceClockHz, uint32_t bclkSourceClockHz)
	Configures the SAI Tx audio format. More...
static void	SAI_TxEDMACallback (edma_handle_t *handle, void *userData, bool done, uint32_t tcds)
	SAI EDMA callback for send. More...

Variables
static sai_edma_private_handle_t	s_edmaPrivateHandle [ARRAY_SIZE(s_saiBases)][2]
static I2S_Type *const	s_saiBases [] = I2S_BASE_PTRS

Macro Definition Documentation

FSL_COMPONENT_ID

#define FSL_COMPONENT_ID   "platform.drivers.sai_edma"

Definition at line 13 of file fsl_sai_edma.c.

STCD_ADDR

#define STCD_ADDR

(

address

)

(edma_tcd_t *)(((uint32_t)(address) + 32UL) & ~0x1FU)

Definition at line 20 of file fsl_sai_edma.c.

Typedef Documentation

sai_edma_private_handle_t

typedef struct sai_edma_private_handle sai_edma_private_handle_t

Enumeration Type Documentation

anonymous enum

anonymous enum

sai_edma_transfer_state, sai edma transfer state.

Enumerator
kSAI_Busy	SAI is busy
kSAI_Idle	Transfer is done.

Definition at line 32 of file fsl_sai_edma.c.

Function Documentation

SAI_GetInstance()

static uint32_t SAI_GetInstance ( I2S_Type *  base )

static

Get the instance number for SAI.

Parameters

base	SAI base pointer.

Definition at line 74 of file fsl_sai_edma.c.

SAI_RxEDMACallback()

static void SAI_RxEDMACallback ( edma_handle_t *  handle, void *  userData, bool  done, uint32_t  tcds  )

static

SAI EDMA callback for receive.

Parameters

handle	pointer to sai_edma_handle_t structure which stores the transfer state.
userData	Parameter for user callback.
done	If the DMA transfer finished.
tcds	The TCD index.

Definition at line 114 of file fsl_sai_edma.c.

SAI_TxEDMACallback()

static void SAI_TxEDMACallback ( edma_handle_t *  handle, void *  userData, bool  done, uint32_t  tcds  )

static

SAI EDMA callback for send.

Parameters

handle	pointer to sai_edma_handle_t structure which stores the transfer state.
userData	Parameter for user callback.
done	If the DMA transfer finished.
tcds	The TCD index.

Definition at line 92 of file fsl_sai_edma.c.

Variable Documentation

s_edmaPrivateHandle

sai_edma_private_handle_t s_edmaPrivateHandle[ARRAY_SIZE(s_saiBases)][2]

static

Definition at line 39 of file fsl_sai_edma.c.

s_saiBases

I2S_Type* const s_saiBases[] = I2S_BASE_PTRS

static

Definition at line 22 of file fsl_sai_edma.c.