/**
* \brief SPI xDMA Rx callback
* Invoked on SPi DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to Spid instance.
*/
static void SPID_Rx_Cb(uint32_t channel, Spid* pArg)
{
SpidCmd *pSpidCmd = pArg->pCurrentCommand;
Spi *pSpiHw = pArg->pSpiHw;
if (channel != spiDmaRxChannel)
return;
/* Disable the SPI TX & RX */
SPI_Disable ( pSpiHw );
/* Configure and enable interrupt on RC compare */
NVIC_ClearPendingIRQ(XDMAC_IRQn);
NVIC_DisableIRQ(XDMAC_IRQn);
/* Disable the SPI Peripheral */
PMC_DisablePeripheral ( pArg->spiId );
/* Release CS */
SPI_ReleaseCS(pSpiHw);
/* Release the DMA channels */
XDMAD_FreeChannel(pArg->pXdmad, spiDmaRxChannel);
XDMAD_FreeChannel(pArg->pXdmad, spiDmaTxChannel);
/* Release the dataflash semaphore */
pArg->semaphore++;
printf("\n\r%s\n\r",pArg->pCurrentCommand->pRxBuff);
/* Invoke the callback associated with the current command */
if (pSpidCmd && pSpidCmd->callback) {
//printf("p %d", pArg->semaphore);
pSpidCmd->callback(0, pSpidCmd->pArgument);
}
}
/**
* \brief This function initialize the appropriate DMA channel for Rx/Tx channel of SPI or SMC
* \returns 0 if the transfer has been started successfully; otherwise returns
* ILI9488_ERROR_XX is the driver is in use, or ILI9488_ERROR_XX if the command is not
* valid.
*/
static uint8_t _ILI9488DmaConfigChannels(void)
{
uint32_t srcType,dstType;
/* Driver initialize */
XDMAD_Initialize( ili9488Dma.xdmaD, 0 );
XDMAD_FreeChannel( ili9488Dma.xdmaD, ili9488Dma.ili9488DmaTxChannel);
XDMAD_FreeChannel( ili9488Dma.xdmaD, ili9488Dma.ili9488DmaRxChannel);
#if !defined(BOARD_LCD_SMC)
srcType = XDMAD_TRANSFER_MEMORY;
dstType = ili9488Dma.spiId;
#else
srcType = XDMAD_TRANSFER_MEMORY;
dstType = XDMAD_TRANSFER_MEMORY;
#endif
/* Allocate a DMA channel for ILI9488_SPI TX. */
ili9488Dma.ili9488DmaTxChannel = XDMAD_AllocateChannel( ili9488Dma.xdmaD, srcType, dstType);
{
if ( ili9488Dma.ili9488DmaTxChannel == XDMAD_ALLOC_FAILED )
{
return ILI9488_ERROR_DMA_ALLOCATE_CHANNEL;
}
}
/* Allocate a DMA channel for ILI9488_SPI RX. */
ili9488Dma.ili9488DmaRxChannel = XDMAD_AllocateChannel( ili9488Dma.xdmaD, dstType, srcType);
{
if ( ili9488Dma.ili9488DmaRxChannel == XDMAD_ALLOC_FAILED )
{
return ILI9488_ERROR_DMA_ALLOCATE_CHANNEL;
}
}
/* Setup callbacks for ILI9488_SPI RX */
XDMAD_SetCallback(ili9488Dma.xdmaD, ili9488Dma.ili9488DmaRxChannel, (XdmadTransferCallback)_ILI9488_Rx_CB, &ili9488Dma);
if (XDMAD_PrepareChannel( ili9488Dma.xdmaD, ili9488Dma.ili9488DmaRxChannel ))
return ILI9488_ERROR_DMA_ALLOCATE_CHANNEL;
/* Setup callbacks for ILI9488_SPI TX (ignored) */
XDMAD_SetCallback(ili9488Dma.xdmaD, ili9488Dma.ili9488DmaTxChannel, (XdmadTransferCallback)_ILI9488_Tx_CB, &ili9488Dma);
if ( XDMAD_PrepareChannel( ili9488Dma.xdmaD, ili9488Dma.ili9488DmaTxChannel ))
return ILI9488_ERROR_DMA_ALLOCATE_CHANNEL;
/* Check if DMA IRQ is enable; if not Enable it */
if(!(NVIC_GetActive(XDMAC_IRQn)))
{
/* Enable interrupt */
NVIC_EnableIRQ(XDMAC_IRQn);
}
return 0;
}
uint32_t UARTD_DisableTxChannels( UartDma *pUartd, UartChannel *pTxCh)
{
assert(pTxCh);
/* Enables the USART to transfer data. */
UART_SetTransmitterEnabled ( pUartd->pUartHw , DISABLE);
XDMAD_StopTransfer(pUartd->pXdmad, pTxCh->ChNum);
XDMAD_SetCallback(pUartd->pXdmad, pTxCh->ChNum, NULL, NULL);
/* Free allocated DMA channel for USART TX. */
if(XDMAD_FreeChannel( pUartd->pXdmad, pTxCh->ChNum) != XDMAD_OK) {
return USARTD_ERROR;
}
if (pTxCh->dmaProgrammingMode == XDMAD_LLI) {
free(pTxCh->pLLIview);
pTxCh->pLLIview = NULL;
}
pTxCh->sempaphore = 1;
memory_barrier();
return 0;
}
uint32_t USARTD_EnableTxChannels( UsartDma *pUsartd, UsartChannel *pTxCh)
{
Usart *pUsartHw = pUsartd->pUsartHw;
// Initialize the callback
pUsartd->pTxChannel = pTxCh;
/* Enables the USART to transfer data. */
USART_SetTransmitterEnabled ( pUsartHw , 1);
XDMAD_FreeChannel( pUsartd->pXdmad, pTxCh->ChNum);
/* Allocate a DMA channel for USART0/1 TX. */
pTxCh->ChNum = XDMAD_AllocateChannel( pUsartd->pXdmad, XDMAD_TRANSFER_MEMORY, pUsartd->usartId);
if ( pTxCh->ChNum == XDMAD_ALLOC_FAILED ) {
return USARTD_ERROR;
}
/* Setup callbacks for USART0/1 TX */
XDMAD_SetCallback(pUsartd->pXdmad, pTxCh->ChNum, (XdmadTransferCallback)USARTD_Tx_Cb, pUsartd);
if ( XDMAD_PrepareChannel( pUsartd->pXdmad, pTxCh->ChNum ))
return USARTD_ERROR;
/* Enable interrupt */
NVIC_EnableIRQ(XDMAC_IRQn);
if (_configureTxLinkList(pUsartHw, pUsartd->pXdmad, pTxCh))
return USARTD_ERROR_LOCK;
return 0;
}
/**
* \brief USART xDMA Rx callback
* Invoked on USART DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to USARTDma instance.
*/
static void UARTD_Tx_Cb(uint32_t channel, UartDma* pArg)
{
UartChannel *pUartdCh = pArg->pTxChannel;
if (channel != pUartdCh->ChNum)
return;
/* Release the DMA channels */
XDMAD_FreeChannel(pArg->pXdmad, pUartdCh->ChNum);
pUartdCh->sempaphore = 1;
memory_barrier();
}
/**
* \brief USART xDMA Rx callback
* Invoked on USART DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to USARTDma instance.
*/
static void USARTD_Tx_Cb(uint32_t channel, UsartDma *pArg)
{
UsartChannel *pUsartdCh = pArg->pTxChannel;
if (channel != pUsartdCh->ChNum)
return;
/* Release the DMA channels */
XDMAD_FreeChannel(pArg->pXdmad, pUsartdCh->ChNum);
pUsartdCh->dmaProgress = 1;
}
/**
* \brief Configure the DMA Channels: 0 RX, 1 TX.
* Channels are disabled after configure.
* \returns 0 if the dma channel configuration successfully; otherwise returns
* SPID_ERROR_XXX.
*/
static uint8_t _spid_configureDmaChannels( Spid* pSpid )
{
/* Driver initialize */
XDMAD_Initialize( pSpid->pXdmad, 0 );
XDMAD_FreeChannel( pSpid->pXdmad, spiDmaTxChannel);
XDMAD_FreeChannel( pSpid->pXdmad, spiDmaRxChannel);
/* Allocate a DMA channel for SPI0/1 TX. */
spiDmaTxChannel = XDMAD_AllocateChannel( pSpid->pXdmad, XDMAD_TRANSFER_MEMORY, pSpid->spiId);
{
if ( spiDmaTxChannel == XDMAD_ALLOC_FAILED )
{
return SPID_ERROR;
}
}
/* Allocate a DMA channel for SPI0/1 RX. */
spiDmaRxChannel = XDMAD_AllocateChannel( pSpid->pXdmad, pSpid->spiId, XDMAD_TRANSFER_MEMORY);
{
if ( spiDmaRxChannel == XDMAD_ALLOC_FAILED )
{
return SPID_ERROR;
}
}
/* Setup callbacks for SPI0/1 RX */
XDMAD_SetCallback(pSpid->pXdmad, spiDmaRxChannel, (XdmadTransferCallback)SPID_Rx_Cb, pSpid);
if (XDMAD_PrepareChannel( pSpid->pXdmad, spiDmaRxChannel ))
return SPID_ERROR;
/* Setup callbacks for SPI0/1 TX (ignored) */
XDMAD_SetCallback(pSpid->pXdmad, spiDmaTxChannel, NULL, NULL);
if ( XDMAD_PrepareChannel( pSpid->pXdmad, spiDmaTxChannel ))
return SPID_ERROR;
return 0;
}
/**
* \brief USART xDMA Rx callback
* Invoked on USART DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to USARTDma instance.
*/
static void USARTD_Rx_Cb(uint32_t channel, UsartDma *pArg)
{
UsartChannel *pUsartdCh = pArg->pRxChannel;
if (channel != pUsartdCh->ChNum)
return;
/* Release the DMA channels */
XDMAD_FreeChannel(pArg->pXdmad, pUsartdCh->ChNum);
pUsartdCh->dmaProgress = 1;
SCB_InvalidateDCache_by_Addr((uint32_t *)pUsartdCh->pBuff, pUsartdCh->BuffSize);
}
/**
* \brief USART xDMA Rx callback
* Invoked on USART DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to USARTDma instance.
*/
static void USARTD_Tx_Cb(uint32_t channel, UsartDma* pArg)
{
UsartChannel *pUsartdCh = pArg->pTxChannel;
if (channel != pUsartdCh->ChNum)
return;
// NVIC_ClearPendingIRQ(XDMAC_IRQn);
/* Release the DMA channels */
XDMAD_FreeChannel(pArg->pXdmad, pUsartdCh->ChNum);
/* Invoke the callback associated with the current command */
if (pUsartdCh && pUsartdCh->callback) {
pUsartdCh->callback(0, pUsartdCh->pArgument);
}
pUsartdCh->Done = 1;
memory_barrier();
}
static void _FinishCmd( sMcid* pMcid, uint8_t bStatus )
{
sSdmmcCommand *pCmd = pMcid->pCmd;
sXdmad *pXdmad = pMcid->pXdmad;
//uint32_t memAddress;
/* Release DMA channel (if used) */
if (pMcid->dwDmaCh != XDMAD_ALLOC_FAILED) {
if (XDMAD_FreeChannel(pXdmad, pMcid->dwDmaCh)) printf("-E- Can't free channel \n\r");
pMcid->dwDmaCh = XDMAD_ALLOC_FAILED;
}
/* Release command */
pMcid->pCmd = NULL;
pMcid->bState = MCID_LOCKED;
pCmd->bStatus = bStatus;
/* Invoke callback */
if (pCmd->fCallback) {
(pCmd->fCallback)(pCmd->bStatus, pCmd->pArg);
}
}
/**
* \brief Configure the DMA Channels: 0 RX.
* Channels are disabled after configure.
* \returns 0 if the dma channel configuration successfully; otherwise returns
* DAC_ERROR_XXX.
*/
static uint8_t _DacConfigureDmaChannels(DacDma *pDacd)
{
/* Driver initialize */
XDMAD_Initialize(pDacd->pXdmad, 0);
XDMAD_FreeChannel(pDacd->pXdmad, dacDmaTxChannel);
/* Allocate a DMA channel for DAC0/1 TX. */
dacDmaTxChannel =
XDMAD_AllocateChannel(pDacd->pXdmad, XDMAD_TRANSFER_MEMORY, ID_DACC);
if (dacDmaTxChannel == XDMAD_ALLOC_FAILED)
return DAC_ERROR;
if (XDMAD_PrepareChannel(pDacd->pXdmad, dacDmaTxChannel))
return DAC_ERROR;
return DAC_OK;
}
/**
* \brief AFE xDMA Rx callback
* Invoked on AFE DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to AfeDma instance.
*/
static void Afe_Rx_Cb(uint32_t channel, AfeDma *pArg)
{
AfeCmd *pAfedCmd = pArg->pCurrentCommand;
if (channel != afeDmaRxChannel)
return;
/* Configure and enable interrupt on RC compare */
NVIC_ClearPendingIRQ(XDMAC_IRQn);
NVIC_DisableIRQ(XDMAC_IRQn);
/* Release the DMA channels */
XDMAD_FreeChannel(pArg->pXdmad, afeDmaRxChannel);
SCB_InvalidateDCache_by_Addr(pAfedCmd->pRxBuff, pAfedCmd->RxSize);
/* Release the dataflash semaphore */
pArg->semaphore++;
/* Invoke the callback associated with the current command */
if (pAfedCmd && pAfedCmd->callback)
pAfedCmd->callback(0, pAfedCmd->pArgument);
}
/**
* \brief Configure the DMA Channels: 0 RX.
* Channels are disabled after configure.
* \param pXdmad Pointer to a AfeDma instance
* \returns 0 if the dma channel configuration successfully; otherwise returns
* AFE_ERROR_XXX.
*/
static uint8_t _AfeConfigureDmaChannels(AfeDma *pAfed)
{
/* Driver initialize */
XDMAD_FreeChannel(pAfed->pXdmad, afeDmaRxChannel);
/* Allocate a DMA channel for AFE0/1 RX. */
afeDmaRxChannel =
XDMAD_AllocateChannel(pAfed->pXdmad, pAfed->afeId, XDMAD_TRANSFER_MEMORY);
if (afeDmaRxChannel == XDMAD_ALLOC_FAILED)
return AFE_ERROR;
/* Setup callbacks for AFE0/1 RX */
XDMAD_SetCallback(pAfed->pXdmad, afeDmaRxChannel,
(XdmadTransferCallback)Afe_Rx_Cb, pAfed);
if (XDMAD_PrepareChannel(pAfed->pXdmad, afeDmaRxChannel))
return AFE_ERROR;
return AFE_OK;
}
/**
* \brief This function disables the appropriate DMA channel for Rx channel of
* USART
* \param pUsartd Pointer to a UsartDma instance.
* \param pRxCh Pointer to TxChannel configuration
* \returns 0 if the transfer has been started successfully;
* otherwise returns USARTD_ERROR_LOCK is the driver is in use, or
* USARTD_ERROR if the command is not valid.
*/
uint32_t USARTD_DisableRxChannels(UsartDma *pUsartd, UsartChannel *pRxCh)
{
assert(pRxCh);
/* Enables the USART to transfer data. */
USART_SetReceiverEnabled (pUsartd->pUsartHw , DISABLE);
XDMAD_StopTransfer(pUsartd->pXdmad, pRxCh->ChNum);
XDMAD_SetCallback(pUsartd->pXdmad, pRxCh->ChNum, NULL, NULL);
/* Free allocated DMA channel for USART TX. */
if (XDMAD_FreeChannel(pUsartd->pXdmad, pRxCh->ChNum) != XDMAD_OK)
return USARTD_ERROR;
if (pRxCh->dmaProgrammingMode == XDMAD_LLI) {
free(pRxCh->pLLIview);
pRxCh->pLLIview = NULL;
}
pRxCh->dmaProgress = 1;
return 0;
}
