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;
}
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;
}
