diff options
Diffstat (limited to 'drivers/fsl_uart_edma.c')
| -rw-r--r-- | drivers/fsl_uart_edma.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/fsl_uart_edma.c b/drivers/fsl_uart_edma.c index a4faa94..c51e493 100644 --- a/drivers/fsl_uart_edma.c +++ b/drivers/fsl_uart_edma.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2015, Freescale Semiconductor, Inc. - * All rights reserved. + * Copyright 2016-2017 NXP * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: @@ -12,7 +12,7 @@ * list of conditions and the following disclaimer in the documentation and/or * other materials provided with the distribution. * - * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * o Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * @@ -246,6 +246,9 @@ status_t UART_SendEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfe EDMA_PrepareTransfer(&xferConfig, xfer->data, sizeof(uint8_t), (void *)UART_GetDataRegisterAddress(base), sizeof(uint8_t), sizeof(uint8_t), xfer->dataSize, kEDMA_MemoryToPeripheral); + /* Store the initially configured eDMA minor byte transfer count into the UART handle */ + handle->nbytes = sizeof(uint8_t); + /* Submit transfer. */ EDMA_SubmitTransfer(handle->txEdmaHandle, &xferConfig); EDMA_StartTransfer(handle->txEdmaHandle); @@ -284,6 +287,9 @@ status_t UART_ReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_tran EDMA_PrepareTransfer(&xferConfig, (void *)UART_GetDataRegisterAddress(base), sizeof(uint8_t), xfer->data, sizeof(uint8_t), sizeof(uint8_t), xfer->dataSize, kEDMA_PeripheralToMemory); + /* Store the initially configured eDMA minor byte transfer count into the UART handle */ + handle->nbytes = sizeof(uint8_t); + /* Submit transfer. */ EDMA_SubmitTransfer(handle->rxEdmaHandle, &xferConfig); EDMA_StartTransfer(handle->rxEdmaHandle); @@ -336,7 +342,9 @@ status_t UART_TransferGetReceiveCountEDMA(UART_Type *base, uart_edma_handle_t *h return kStatus_NoTransferInProgress; } - *count = handle->rxDataSizeAll - EDMA_GetRemainingBytes(handle->rxEdmaHandle->base, handle->rxEdmaHandle->channel); + *count = handle->rxDataSizeAll - + (uint32_t)handle->nbytes * + EDMA_GetRemainingMajorLoopCount(handle->rxEdmaHandle->base, handle->rxEdmaHandle->channel); return kStatus_Success; } @@ -352,7 +360,9 @@ status_t UART_TransferGetSendCountEDMA(UART_Type *base, uart_edma_handle_t *hand return kStatus_NoTransferInProgress; } - *count = handle->txDataSizeAll - EDMA_GetRemainingBytes(handle->txEdmaHandle->base, handle->txEdmaHandle->channel); + *count = handle->txDataSizeAll - + (uint32_t)handle->nbytes * + EDMA_GetRemainingMajorLoopCount(handle->txEdmaHandle->base, handle->txEdmaHandle->channel); return kStatus_Success; } |