MCASP_TransferObj Struct Reference

Detailed Description

McASP Transfer Data structure stored in driver object.

Data Fields
uint32_t	inProgress
uint32_t	state
int32_t	status
uint32_t	count
uint8_t	slotCount
uint8_t	slotIndex
uint8_t	frameCount
uint8_t	frameIndex
uint8_t	serCount
uint8_t *	serArray
uint8_t	bufferFormat
MCASP_Transaction *	transaction
MCASP_TxCallbackFxn	cbFxn
MCASP_Transaction	txnLoopjob
uint32_t	loopjobEnable

Field Documentation

inProgress

uint32_t MCASP_TransferObj::inProgress

Flag to indicate if the transfer is ongoing

state

uint32_t MCASP_TransferObj::state

MCASP Transfer State

status

int32_t MCASP_TransferObj::status

MCASP_Transfer Status

count

uint32_t MCASP_TransferObj::count

MCASP Transfer count

slotCount

uint8_t MCASP_TransferObj::slotCount

number of slots in transaction

slotIndex

uint8_t MCASP_TransferObj::slotIndex

current slot index in ongoing transfer

frameCount

uint8_t MCASP_TransferObj::frameCount

number of frames in transaction

frameIndex

uint8_t MCASP_TransferObj::frameIndex

current frame index in ongoing transfer

serCount

uint8_t MCASP_TransferObj::serCount

Number of allocated serializers

serArray

uint8_t* MCASP_TransferObj::serArray

Pointer to the array of allocated serializer indices

bufferFormat

uint8_t MCASP_TransferObj::bufferFormat

Audio buffer format for app buffer

transaction

MCASP_Transaction* MCASP_TransferObj::transaction

Pointer to current transaction struct

cbFxn

MCASP_TxCallbackFxn MCASP_TransferObj::cbFxn

callback function provided by the app to be called by DMA or Host Audio buffer format for app buffer

txnLoopjob

MCASP_Transaction MCASP_TransferObj::txnLoopjob

transaction struct object for loopjob buffer

loopjobEnable

uint32_t MCASP_TransferObj::loopjobEnable

Flag to enable loopjob. when enabled loopjob buffer is transmitted if application fails to load buffers. If disabled minimum of 2 buffers need to be submitted before start and atleast one buffer should be queued before each ISR call.