static void I2C_MasterTransferDMAConfig(I2C_Type *base, i2c_master_dma_handle_t *handle)
{
dma_transfer_config_t transfer_config;
dma_transfer_options_t transfer_options = kDMA_EnableInterrupt;
if (handle->transfer.direction == kI2C_Read)
{
transfer_config.srcAddr = (uint32_t)I2C_GetDataRegAddr(base);
transfer_config.destAddr = (uint32_t)(handle->transfer.data);
transfer_config.transferSize = (handle->transfer.dataSize - 1);
transfer_config.srcSize = kDMA_Transfersize8bits;
transfer_config.enableSrcIncrement = false;
transfer_config.destSize = kDMA_Transfersize8bits;
transfer_config.enableDestIncrement = true;
}
else
{
transfer_config.srcAddr = (uint32_t)(handle->transfer.data + 1);
transfer_config.destAddr = (uint32_t)I2C_GetDataRegAddr(base);
transfer_config.transferSize = (handle->transfer.dataSize - 1);
transfer_config.srcSize = kDMA_Transfersize8bits;
transfer_config.enableSrcIncrement = true;
transfer_config.destSize = kDMA_Transfersize8bits;
transfer_config.enableDestIncrement = false;
}
DMA_SubmitTransfer(handle->dmaHandle, &transfer_config, transfer_options);
DMA_StartTransfer(handle->dmaHandle);
}
status_t SPIFI_TransferReceiveDMA(SPIFI_Type *base, spifi_dma_handle_t *handle, spifi_transfer_t *xfer)
{
assert(handle && (handle->dmaHandle));
dma_transfer_config_t xferConfig;
status_t status;
/* If previous TX not finished. */
if (kSPIFI_BusBusy == handle->state)
{
status = kStatus_SPIFI_Busy;
}
else
{
handle->state = kSPIFI_BusBusy;
/* Prepare transfer. */
DMA_PrepareTransfer(&xferConfig, (void *)SPIFI_GetDataRegisterAddress(base), xfer->data, sizeof(uint32_t),
xfer->dataSize, kDMA_PeripheralToMemory, NULL);
/* Submit transfer. */
DMA_SubmitTransfer(handle->dmaHandle, &xferConfig);
DMA_StartTransfer(handle->dmaHandle);
/* Enable SPIFI TX DMA. */
SPIFI_EnableDMA(base, true);
status = kStatus_Success;
}
return status;
}
/* AsyncMemCopy
*
* Block size 0 = 64k. Enable the DMA channel to use first.
* Then setup channel for copying data, increasing addresses,
* no address pointer reload, with 8-byte bursts.
*
* \note This function is asynchronous and DOES NOT wait for
* completion.This must be handled by the program
* calling this function.
* In this example, an interrupt.
*
*/
void AsyncMemCopy( const void * src,
void * dest,
uint16_t blockSize,
DMA_CH_t * dmaChannel )
{
DMA_EnableChannel( dmaChannel );
DMA_SetupBlock( dmaChannel,
src,
DMA_CH_SRCRELOAD_NONE_gc,
DMA_CH_SRCDIR_INC_gc,
dest,
DMA_CH_DESTRELOAD_NONE_gc,
DMA_CH_DESTDIR_INC_gc,
blockSize,
DMA_CH_BURSTLEN_8BYTE_gc,
0,
false );
DMA_StartTransfer( dmaChannel );
}
bool MemCopy( const void * src, void * dest, uint16_t blockSize,
DMA_CH_t * dmaChannel )
{
uint8_t flags = 0;
DMA_EnableChannel( dmaChannel );
DMA_SetupBlock( dmaChannel,
src,
DMA_CH_SRCRELOAD_NONE_gc,
DMA_CH_SRCDIR_INC_gc,
dest,
DMA_CH_DESTRELOAD_NONE_gc,
DMA_CH_DESTDIR_INC_gc,
blockSize,
DMA_CH_BURSTLEN_8BYTE_gc,
0,
false ); // no repeat
DMA_StartTransfer( dmaChannel );
// Wait until the completion or error flag is set. The flags
// must be cleared manually.
do {
flags = DMA_ReturnStatus_non_blocking( dmaChannel );
} while ( flags == 0 );
// Clear flags
DMA.CH0.CTRLB |= ( flags );
// Check if error flag is set
if ( ( flags & DMA_CH_ERRIF_bm ) != 0x00 )
{
return true;
} else
{
return false;
}
}
status_t USART_TransferReceiveDMA(USART_Type *base, usart_dma_handle_t *handle, usart_transfer_t *xfer)
{
assert(handle);
assert(handle->rxDmaHandle);
assert(xfer);
assert(xfer->data);
assert(xfer->dataSize);
dma_transfer_config_t xferConfig;
status_t status;
/* If previous RX not finished. */
if (kUSART_RxBusy == handle->rxState)
{
status = kStatus_USART_RxBusy;
}
else
{
handle->rxState = kUSART_RxBusy;
handle->rxDataSizeAll = xfer->dataSize;
/* Enable DMA request from rxFIFO */
USART_EnableRxDMA(base, true);
/* Prepare transfer. */
DMA_PrepareTransfer(&xferConfig, (void *)&base->FIFORD, xfer->data, sizeof(uint8_t), xfer->dataSize,
kDMA_PeripheralToMemory, NULL);
/* Submit transfer. */
DMA_SubmitTransfer(handle->rxDmaHandle, &xferConfig);
DMA_StartTransfer(handle->rxDmaHandle);
status = kStatus_Success;
}
return status;
}
status_t UART_TransferReceiveDMA(UART_Type *base, uart_dma_handle_t *handle, uart_transfer_t *xfer)
{
assert(handle);
assert(handle->rxDmaHandle);
assert(xfer);
assert(xfer->data);
assert(xfer->dataSize);
dma_transfer_config_t xferConfig;
status_t status;
/* If previous RX not finished. */
if (kUART_RxBusy == handle->rxState)
{
status = kStatus_UART_RxBusy;
}
else
{
handle->rxState = kUART_RxBusy;
handle->rxDataSizeAll = xfer->dataSize;
/* Prepare transfer. */
DMA_PrepareTransfer(&xferConfig, (void *)UART_GetDataRegisterAddress(base), sizeof(uint8_t), xfer->data,
sizeof(uint8_t), xfer->dataSize, kDMA_PeripheralToMemory);
/* Submit transfer. */
DMA_SubmitTransfer(handle->rxDmaHandle, &xferConfig, kDMA_EnableInterrupt);
DMA_StartTransfer(handle->rxDmaHandle);
/* Enable UART RX DMA. */
UART_EnableRxDMA(base, true);
status = kStatus_Success;
}
return status;
}
/*! \brief Example of a repeated block memory copy operation.
*
* Block size 0 = 64k. Enable the DMA channel to use first and the channel
* will be disabled automatically. A parameter check to avoid illegal values.
* Setup channel for copying data, increasing addresses, no address pointer
* reload, with 8-byte bursts.
*
* \note This function wait until the transfer is complete and use a blocking
* function which also makes this function blocking, hence the function
* will dead-lock if the completion or error flag never get set.
*
* \retval true if success.
* \retval false if failure.
*/
bool MultiBlockMemCopy( const void * src, void * dest, uint16_t blockSize,
uint8_t repeatCount, volatile DMA_CH_t * dmaChannel )
{
uint8_t flags;
DMA_EnableChannel( dmaChannel );
DMA_SetupBlock( dmaChannel,
src,
DMA_CH_SRCRELOAD_NONE_gc,
DMA_CH_SRCDIR_INC_gc,
dest,
DMA_CH_DESTRELOAD_NONE_gc,
DMA_CH_DESTDIR_INC_gc,
blockSize,
DMA_CH_BURSTLEN_8BYTE_gc,
repeatCount,
true );
DMA_StartTransfer( dmaChannel );
/* Wait until the completion or error flag is set. The flags
* must be cleared manually.
*/
do {
flags = DMA_ReturnStatus_non_blocking( dmaChannel );
} while ( flags == 0);
dmaChannel->CTRLB |= ( flags );
/* Check if error flag is set. */
if ( ( flags & DMA_CH_ERRIF_bm ) != 0x00 ) {
return false;
} else {
return true;
}
}
/**
* \brief Call back function for DMA transmit complete
*
* This function will be called when DMA transmit completes.
* This function changes the source address of the DMA channel and
* restarts the DMA transfer.
*
* \param dmaStatus [IN] Status of the DMA transfer
* \param dataCallback [IN] I2S handle
*
* \return void
*
*/
void I2S_DmaTxCallBack(PSP_DMATransferStatus dmaStatus,
void *dataCallback)
{
#if 0 // currently unused
Uint16 i;
Int16 status;
Uint16 * ptr_tx_left;
Uint16 * ptr_tx_right;
Uint16 * ptr_tx_codec_buf;
Uint16 next_position;
Uint16 wrap;
prevDmaTxferComplete = TRUE;
if((dataCallback != NULL) && (dmaStatus == PSP_DMA_TRANSFER_COMPLETE))
{
if(usb_play_mode == FALSE)
{
//playback not active- use zero buffer
DMA_ChangeI2SSrcAddr(hDmaTxLeft,gZeroBuf);
DMA_ChangeI2SSrcAddr(hDmaTxRight,gZeroBuf);
/* Start dma transfer */
DMA_StartTransfer(hDmaTxLeft);
DMA_StartTransfer(hDmaTxRight);
return;
}
// playback is active - get the next output buffer
if(nextBuffer == TRUE)
{
nextBuffer = FALSE;
//if(gEp2Buff2Full == TRUE)
if(1)
{
// output pong buffer
gEp2Buff2Full = FALSE;
DMA_ChangeI2SSrcAddr(hDmaTxLeft,gi2sNextTxLeftBuf);
DMA_ChangeI2SSrcAddr(hDmaTxRight,gi2sNextTxRightBuf);
}
else
{
// buffer is not ready
// dma_error++;
// DMA_ChangeI2SSrcAddr(hDmaTxLeft,gZeroBuf);
// DMA_ChangeI2SSrcAddr(hDmaTxRight,gZeroBuf);
}
/* Start dma transfer */
DMA_StartTransfer(hDmaTxLeft);
DMA_StartTransfer(hDmaTxRight);
// fill the next buffer
if(enable_asrc == TRUE)
{
// fill output buffer with ASRC output
for(i = 0; i < I2S_TXBUFF_SIZE; i++)
{
/* Generate output samples L and R */
status = ASRC_genOutAdaptCoefs16b(hAsrc, (Int16 *)&ping_i2sTxLeftBuf[i]);
if (status != ASRC_SOK)
{
dma_error++;
}
else
{
// save the right sample to the right output buffer
ping_i2sTxRightBuf[i] = ping_i2sTxLeftBuf[i + 1];
}
status = ASRC_accPhaseAdapt(hAsrc);
if (status != ASRC_SOK)
{
dma_error++;
}
}
}
else // - fill output buffer with data from circular buffer
{
// this buffer needs to be filled with data to output
ptr_tx_left = &ping_i2sTxLeftBuf[0];
ptr_tx_right = &ping_i2sTxRightBuf[0];
ptr_tx_codec_buf = &codec_output_buffer[codec_output_buffer_output_index];
next_position = codec_output_buffer_output_index + (2*I2S_TXBUFF_SIZE);
//prepare the next buffer
if(next_position < CODEC_OUTPUT_BUFFER_SIZE)
{
// copy without wrap
for(i = 0; i < I2S_TXBUFF_SIZE; i++)
{
*ptr_tx_left++ = *ptr_tx_codec_buf++;
*ptr_tx_right++ = *ptr_tx_codec_buf++;
}
// update index into circular buffer - 'x2' due to 2 writes
codec_output_buffer_output_index += (2*I2S_TXBUFF_SIZE);
}
else
{
// copy with wrap
outwrap++;
wrap = (CODEC_OUTPUT_BUFFER_SIZE - codec_output_buffer_output_index)>>1;
// copy prior to wrap
for(i = 0; i < wrap; i++)
{
*ptr_tx_left++ = *ptr_tx_codec_buf++;
*ptr_tx_right++ = *ptr_tx_codec_buf++;
}
// now wrap
ptr_tx_codec_buf = &codec_output_buffer[0];
wrap = I2S_TXBUFF_SIZE - wrap;
// copy after wrap
for(i = 0; i < wrap; i++)
{
*ptr_tx_left++ = *ptr_tx_codec_buf++;
*ptr_tx_right++ = *ptr_tx_codec_buf++;
}
// update index into circular buffer - 'x2' due to 2 writes
codec_output_buffer_output_index = 2*wrap;
}
}
}
else
{
/**
* \brief DMA data read.
*
* Function to receive the data from I2S using DMA.
* This API is called by the driver code from DDA to receive
* I2S data using DMA.
*
* \param i2sHandle [IN] Handle to the I2S instance
* \param nextRxLeftBuf [IN] Pointer to next left receive buffer
* \param nextRxRightBuf [IN] Pointer to next right receive buffer
* \param hDmaRxLeft [IN] Dma handle for left receive channel
* \param hDmaRxRight [IN] Dma handle for right receive channel
*
* \return PSP_SOK - if successful, else suitable error code
*/
Int16 DDC_I2SDMARead(PSP_Handle i2sHandle,
Uint32 *nextRxLeftBuf,
Uint32 *nextRxRightBuf,
DMA_ChanHandle hDmaRxLeft,
DMA_ChanHandle hDmaRxRight)
{
DDC_I2SHandle hI2S;
Uint16 leftDmaChanNum;
Uint16 dmaChanCount;
Uint16 dmaNum;
Int16 status;
PSP_Result status0;
PSP_Result status1;
status = PSP_E_INVAL_PARAM;
status0 = PSP_E_INVAL_PARAM;
status1 = PSP_E_INVAL_PARAM;
if(i2sHandle != NULL)
{
hI2S = (DDC_I2SHandle)i2sHandle;
leftDmaChanNum = hDmaRxLeft->chanNum;
dmaChanCount = 4;
dmaNum = 0;
//gNextRxLeftBuf = (Uint32)nextRxLeftBuf;
//gNextRxRightBuf = (Uint32)nextRxRightBuf;
if(hDmaRxLeft != NULL)
{
/* Find out the DMA engine number and channel number for
* left Rx DMA channel */
while(leftDmaChanNum >= dmaChanCount)
{
leftDmaChanNum -= dmaChanCount;
dmaNum += 1;
}
/* Disable the DMA interrupts on left receive channel */
CSL_DMAEVTINT_REGS->DMAINTEN &= ~(0x0001 <<
(dmaNum*dmaChanCount + leftDmaChanNum));
}
/* Enable I2S reception */
LLC_I2SEnable(hI2S->regs);
switch(hI2S->chanType)
{
case PSP_I2S_CHAN_STEREO: /* Stereo data */
if((hDmaRxLeft != NULL) && (hDmaRxRight != NULL) &&
(nextRxLeftBuf != NULL) && (nextRxRightBuf != NULL))
{
/* Enable transfer on two dma channels */
status0 = DMA_StartTransfer(hDmaRxLeft);
status1 = DMA_StartTransfer(hDmaRxRight);
}
break;
case PSP_I2S_CHAN_MONO: /* Mono data */
if((hDmaRxLeft != NULL) && (nextRxLeftBuf != NULL))
{
/* Enable transfer on one dma channel */
status0 = DMA_StartTransfer(hDmaRxLeft);
status1 = PSP_SOK;
}
break;
default:
break;
}
if((status0 == PSP_SOK) && (status1 == PSP_SOK))
{
status = PSP_SOK;
}
}
return status;
}
/**
* \brief Audio Class intialization function
*
* \param None
*
* \return None
*/
void CSL_acTest(void)
{
I2sInitPrms i2sInitPrms;
CSL_UsbConfig usbConfig;
PSP_Result result;
Int16 status;
HWI_Attrs attrs;
LOG_printf(&trace, "USB ISO FULL SPEED MODE\n");
/* Initialize audio module */
result = AIC3254_init();
if(result != 0)
{
LOG_printf(&trace, "ERROR: Unable to configure audio codec");
}
else
{
#if !defined(SAMPLE_BY_SAMPLE_PB) || !defined(SAMPLE_BY_SAMPLE_REC)
DMA_HwInit();
DMA_DrvInit();
#endif
/* Initialize I2S and associated DMA channels for Playback and Record */
i2sInitPrms.enablePlayback = TRUE;
i2sInitPrms.enableStereoPb = TRUE;
#ifdef SAMPLE_BY_SAMPLE_PB
i2sInitPrms.sampleBySamplePb = TRUE;
#else /* Configuration untested since ASRC only works with I2S in sample-by-sample mode */
i2sInitPrms.sampleBySamplePb = FALSE;
i2sInitPrms.enableDmaPingPongPb = FALSE;
i2sInitPrms.pingI2sTxLeftBuf = ping_i2sTxLeftBuf;
i2sInitPrms.pongI2sTxLeftBuf = pong_i2sTxLeftBuf;
i2sInitPrms.pingI2sTxRightBuf = ping_i2sTxRightBuf;
i2sInitPrms.pongI2sTxRightBuf = pong_i2sTxRightBuf;
i2sInitPrms.zeroBuf = ZeroBuf;
#endif
i2sInitPrms.i2sPb = PSP_I2S_TX_INST_ID;
i2sInitPrms.enableRecord = TRUE;
i2sInitPrms.enableStereoRec = FALSE;
#ifdef SAMPLE_BY_SAMPLE_REC
i2sInitPrms.sampleBySampleRec = TRUE;
#else
i2sInitPrms.sampleBySampleRec = FALSE;
i2sInitPrms.enableDmaPingPongRec = TRUE;
i2sInitPrms.pingI2sRxLeftBuf = (Int16 *)ping_pong_i2sRxLeftBuf;
i2sInitPrms.pongI2sRxLeftBuf = NULL;
i2sInitPrms.pingI2sRxRightBuf = (Int16 *)ping_pong_i2sRxRightBuf;
i2sInitPrms.pongI2sRxRightBuf = NULL;
#endif
i2sInitPrms.i2sRec = PSP_I2S_RX_INST_ID;
status = i2sInit(&i2sInitPrms);
if (status != I2SSAMPLE_SOK)
{
LOG_printf(&trace, "ERROR: Unable to initialize I2S");
}
#ifdef C5535_EZDSP_DEMO
// initialize the OLED display
oled_init();
#endif
/* Initialising the Pointer to the Audio Class Handle to the Buffer Allocated */
AC_AppHandle.pAcObj = &ACAppBuffer[0];
usbConfig.devNum = CSL_USB0;
usbConfig.opMode = CSL_USB_OPMODE_POLLED;
#ifdef APP_USB_SELF_POWERED
usbConfig.selfPowered = TRUE;
#else
usbConfig.selfPowered = FALSE;
#endif
usbConfig.maxCurrent = APP_USB_MAX_CURRENT;
usbConfig.appSuspendCallBack = (CSL_USB_APP_CALLBACK)CSL_suspendCallBack;
usbConfig.appWakeupCallBack = (CSL_USB_APP_CALLBACK)CSL_selfWakeupCallBack;
usbConfig.startTransferCallback = StartTransfer;
usbConfig.completeTransferCallback = CompleteTransfer;
USB_init(&usbConfig);
USB_setFullSpeedMode(0x40); /* parameter is EP0 data size in bytes */
USB_resetDev(CSL_USB0);
/* Calling init routine */
/* Giving all the table hanldes and the buffers to the Audio Class module */
AC_AppHandle.strDescrApp = (char **)&string_descriptor[0];
AC_AppHandle.lbaBufferPbApp = &lbaBufferPbApp[0];
AC_AppHandle.lbaBufferRecApp = &lbaBufferRecApp[0];
AC_AppHandle.lbaBufferHidReportApp = &lbaBufferHidReportApp[0];
AC_AppHandle.acReqTableApp = USB_ReqTable;
AC_AppHandle.pId = pId;
AC_AppHandle.vId = vId;
#ifndef ENABLE_PLAYBACK_TWO_SAMPLE_RATES
#ifdef SAMPLE_RATE_TX_48kHz
LOG_printf(&trace, "PLAYBACK: 48KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = EP_PB_MAXP; // max packet size for 48K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x60; // max packet size for 48K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_48kHz
#ifdef SAMPLE_RATE_TX_44_1kHz
LOG_printf(&trace, "PLAYBACK: 44.1KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = 0xB0; // max packet size for 44.1 stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x58; // max packet size for 44.1 mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_44_1kHz
#ifdef SAMPLE_RATE_TX_32kHz
LOG_printf(&trace, "PLAYBACK: 32KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = 0x80; // max packet size for 32K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x40; // max packet size for 32K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_32kHz
#ifdef SAMPLE_RATE_TX_16kHz
LOG_printf(&trace, "PLAYBACK: 16KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_16kHz
#else /* ENABLE_PLAYBACK_TWO_SAMPLE_RATES */
LOG_printf(&trace, "PLAYBACK: 48KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = EP_PB_MAXP; // max packet size for 48K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x60; // max packet size for 48K mono
#endif // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "PLAYBACK: 16KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
LOG_printf(&trace, "STEREO\n");
#else // ENABLE_STEREO_PLAYBACK
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
LOG_printf(&trace, "MONO\n");
#endif // ENABLE_STEREO_PLAYBACK
#endif /* ENABLE_PLAYBACK_TWO_SAMPLE_RATES */
AC_AppHandle.txPktSize = EP_REC_MAXP; // max packet size for 16K mono
AC_AppHandle.hidTxPktSize = EP_HID_MAXP; // max packet size for HID output report
/* All Function Handlers need to be Initialised */
AC_AppHandle.playAudioApp = appPlayAudio;
AC_AppHandle.recordAudioApp = appRecordAudio;
AC_AppHandle.initPlayAudioApp = appInitPlayAudio;
AC_AppHandle.initRecordAudioApp = appInitRecordAudio;
AC_AppHandle.stopPlayAudioApp = appStopPlayAudio;
AC_AppHandle.stopRecordAudioApp = appStopRecordAudio;
AC_AppHandle.mediaGetPresentStateApp = AppGetMediaStatus;
AC_AppHandle.mediaInitApp = AppMediaInit;
AC_AppHandle.mediaEjectApp = AppMediaEject;
AC_AppHandle.mediaLockUnitApp = AppLockMedia;
AC_AppHandle.getMediaSizeApp = AppGetMediaSize;
AC_AppHandle.getHidReportApp = appGetHidReport;
AC_AppHandle.ctrlHandler = appCtrlFxn;
AC_AppHandle.isoHandler = appIsoFxn;
AC_AppHandle.hidHandler = appHidFxn;
AC_AppHandle.numLun = 2;
/* Initialize End point descriptors */
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)deviceDescriptorB,
CSL_AC_DEVICE_DESCR, sizeof(deviceDescriptorB));
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)deviceQualifierDescr,
CSL_AC_DEVICE_QUAL_DESCR, 10);
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)configDescriptor,
CSL_AC_CONFIG_DESCR, sizeof(configDescriptor));
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)stringLanId,
CSL_AC_STRING_LANGID_DESC, 6);
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)acHidReportDescriptor,
CSL_AC_HID_REPORT_DESC, sizeof(acHidReportDescriptor));
/* Initialize HID */
AC_AppHandle.acHidIfNum = IF_NUM_HID; // HID interface number
AC_AppHandle.acHidReportId = HID_REPORT_ID; // HID report ID
AC_AppHandle.acHidReportLen = HID_REPORT_SIZE_BYTES; // HID report length (bytes)
genHidReport(UI_PUSH_BUTTON_NONE, gHidReport); // init. HID report for Get Report
/* Call Init API */
AC_Open(&AC_AppHandle);
/* Enable CPU USB interrupts */
CSL_FINST(CSL_CPU_REGS->IER1, CPU_IER1_USB, ENABLE);
/* Initialize active sample rate */
initSampleRate(RATE_48_KHZ, &active_sample_rate,
&i2sTxBuffSz);
/* Initialize ASRC */
Init_Sample_Rate_Converter(active_sample_rate);
/* Reset codec output buffer */
reset_codec_output_buffer();
#ifdef ENABLE_RECORD
#ifdef SAMPLE_RATE_RX_48kHz
LOG_printf(&trace, "RECORD: 48KHZ ");
#else
LOG_printf(&trace, "RECORD: 16KHZ ");
#endif // SAMPLE_RATE_RX_48kHz
// start the rx DMAs
DMA_StartTransfer(hDmaRxLeft);
#ifdef ENABLE_STEREO_RECORD
LOG_printf(&trace, "STEREO NOT SUPPORTED - RECORD WILL BE MONO\n");
DMA_StartTransfer(hDmaRxRight);
#else
LOG_printf(&trace, "MONO\n");
#endif
#endif // ENABLE_RECORD
#ifdef STORE_PARAMETERS_TO_SDRAM
initSdram(FALSE, 0x0000);
#endif // STORE_PARAMETERS_TO_SDRAM
#ifdef SAMPLE_BY_SAMPLE_PB
/* SampleBySample, init interrupt */
/* Use with compiler "interrupt" keyword */
//IRQ_plug(I2S_TX_EVENT, i2s_txIsr);
/* Use with dispatcher, no "interrupt" keyword */
attrs.ier0mask = 0xFFFF;
attrs.ier1mask = 0xFFFF;
HWI_dispatchPlug(I2S_TX_EVENT, (Fxn)i2s_txIsr, &attrs);
IRQ_enable(I2S_TX_EVENT); /* SampleBySample, enable IRQ for I2S Tx */
#endif
#if defined(SAMPLE_BY_SAMPLE_REC) && !defined(COMBINE_I2S_TX_RX_ISR)
/* SampleBySample, init interrupt */
/* Use with compiler "interrupt" keyword */
IRQ_plug(I2S_RX_EVENT, i2s_rxIsr);
/* Use with dispatcher, no "interrupt" keyword */
//attrs.ier0mask = 0xFFFF;
//attrs.ier1mask = 0xFFFF;
//HWI_dispatchPlug(I2S_RX_EVENT, (Fxn)i2s_rxIsr, &attrs);
IRQ_enable(I2S_RX_EVENT); /* SampleBySample, enable IRQ for I2S Rx */
#endif
#if defined(SAMPLE_BY_SAMPLE_PB) || defined(SAMPLE_BY_SAMLE_REC)
DDC_I2S_transEnable((DDC_I2SHandle)i2sHandleTx, TRUE); /* SampleBySample, enable I2S transmit and receive */
#endif
#ifndef SAMPLE_BY_SAMPLE_PB
i2sTxStart(); // - moved from appPlayAudio()
#endif
#ifdef C5535_EZDSP_DEMO
// clock gating usused peripherals
ClockGating();
#endif
}
}
status_t SPI_MasterTransferDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_transfer_t *xfer)
{
assert(handle && xfer);
dma_transfer_config_t config = {0};
/* Check if the device is busy */
if (handle->state == kSPI_Busy)
{
return kStatus_SPI_Busy;
}
/* Check if input parameter invalid */
if (((xfer->txData == NULL) && (xfer->rxData == NULL)) || (xfer->dataSize == 0U))
{
return kStatus_InvalidArgument;
}
/* Disable SPI and then enable it, this is used to clear S register*/
SPI_Enable(base, false);
SPI_Enable(base, true);
/* Configure tx transfer DMA */
config.destAddr = SPI_GetDataRegisterAddress(base);
config.enableDestIncrement = false;
if (handle->bytesPerFrame == 1U)
{
config.srcSize = kDMA_Transfersize8bits;
config.destSize = kDMA_Transfersize8bits;
}
else
{
config.srcSize = kDMA_Transfersize16bits;
config.destSize = kDMA_Transfersize16bits;
}
config.transferSize = xfer->dataSize;
/* Configure DMA channel */
if (xfer->txData)
{
config.enableSrcIncrement = true;
config.srcAddr = (uint32_t)(xfer->txData);
}
else
{
/* Disable the source increasement and source set to dummyData */
config.enableSrcIncrement = false;
config.srcAddr = (uint32_t)(&s_dummyData);
}
DMA_SubmitTransfer(handle->txHandle, &config, true);
/* Handle rx transfer */
if (xfer->rxData)
{
/* Set the source address */
DMA_SetDestinationAddress(handle->rxHandle->base, handle->rxHandle->channel, (uint32_t)(xfer->rxData));
/* Set the transfer size */
DMA_SetTransferSize(handle->rxHandle->base, handle->rxHandle->channel, xfer->dataSize);
}
/* Change the state of handle */
handle->transferSize = xfer->dataSize;
handle->state = kSPI_Busy;
/* Start Rx transfer if needed */
if (xfer->rxData)
{
handle->rxInProgress = true;
SPI_EnableDMA(base, kSPI_RxDmaEnable, true);
DMA_StartTransfer(handle->rxHandle);
}
/* Always start Tx transfer */
handle->txInProgress = true;
SPI_EnableDMA(base, kSPI_TxDmaEnable, true);
DMA_StartTransfer(handle->txHandle);
return kStatus_Success;
}
