C++ (Cpp) DMA_GetRemainingBytes Examples

Example #1

File: fsl_usart_dma.c Project: Archcady/mbed-os

status_t USART_TransferGetReceiveCountDMA(USART_Type *base, usart_dma_handle_t *handle, uint32_t *count)
{
    assert(handle);
    assert(handle->rxDmaHandle);
    assert(count);

    if (kUSART_RxIdle == handle->rxState)
    {
        return kStatus_NoTransferInProgress;
    }

    *count = handle->rxDataSizeAll - DMA_GetRemainingBytes(handle->rxDmaHandle->base, handle->rxDmaHandle->channel);

    return kStatus_Success;
}

Example #2

File: fsl_spi_dma.c Project: francisconroy/affenspinner

status_t SPI_MasterTransferGetCountDMA(SPI_Type *base, spi_dma_handle_t *handle, size_t *count)
{
    assert(handle);

    status_t status = kStatus_Success;

    if (handle->state != kSPI_Busy)
    {
        status = kStatus_NoTransferInProgress;
    }
    else
    {
        if (handle->rxInProgress)
        {
            *count = handle->transferSize - DMA_GetRemainingBytes(handle->rxHandle->base, handle->rxHandle->channel);
        }
        else
        {
            *count = handle->transferSize - DMA_GetRemainingBytes(handle->txHandle->base, handle->txHandle->channel);
        }
    }

    return status;
}

Example #3

File: fsl_spifi_dma.c Project: mbedNoobNinja/mbed

status_t SPIFI_TransferGetReceiveCountDMA(SPIFI_Type *base, spifi_dma_handle_t *handle, size_t *count)
{
    assert(handle);

    status_t status = kStatus_Success;

    if (handle->state != kSPIFI_BusBusy)
    {
        status = kStatus_NoTransferInProgress;
    }
    else
    {
        *count = handle->transferSize - DMA_GetRemainingBytes(handle->dmaHandle->base, handle->dmaHandle->channel);
    }

    return status;
}

Example #4

File: fsl_i2c_dma.c Project: 01org/zephyr

status_t I2C_MasterTransferGetCountDMA(I2C_Type *base, i2c_master_dma_handle_t *handle, size_t *count)
{
    assert(handle);

    if (!count)
    {
        return kStatus_InvalidArgument;
    }

    if (kIdleState != handle->state)
    {
        *count = (handle->transferSize - DMA_GetRemainingBytes(handle->dmaHandle->base, handle->dmaHandle->channel));
    }
    else
    {
        *count = handle->transferSize;
    }

    return kStatus_Success;
}