afe_dma.c File Reference

#include "chip.h"
#include "afe_dma.h"
#include "xdmad.h"
#include <stdint.h>
#include <assert.h>

Functions
uint32_t	Afe_ConfigureDma (AfeDma *pAfed, Afec *pAfeHw, uint8_t AfeId, sXdmad *pXdmad)
	Initializes the AfeDma structure and the corresponding AFE & DMA . hardware select value. The driver will uses DMA channel 0 for RX . The DMA channels are freed automatically when no DMA command processing.
uint32_t	Afe_SendData (AfeDma *pAfed, AfeCmd *pCommand)
	Starts a AFE transfer. This is a non blocking function. It will return as soon as the transfer is started.

Function Documentation

Afe_ConfigureDma()

uint32_t Afe_ConfigureDma	(	AfeDma *	pAfed,
		Afec *	pAfeHw,
		uint8_t	AfeId,
		sXdmad *	pXdmad
	)

Initializes the AfeDma structure and the corresponding AFE & DMA . hardware select value. The driver will uses DMA channel 0 for RX . The DMA channels are freed automatically when no DMA command processing.

Parameters

pAfed	Pointer to a AfeDma instance.
pAfeHw	Associated Afe peripheral.
AfeId	Afe peripheral identifier.
pDmad	Pointer to a Dmad instance.

Afe_SendData()

uint32_t Afe_SendData	(	AfeDma *	pAfed,
		AfeCmd *	pCommand
	)

Starts a AFE transfer. This is a non blocking function. It will return as soon as the transfer is started.

Parameters

pAfed	Pointer to a AfeDma instance.
pCommand	Pointer to the Afe command to execute.

Returns

0 if the transfer has been started successfully; otherwise returns AFE_ERROR_LOCK is the driver is in use, or AFE_ERROR if the command is not valid.