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-rw-r--r--drivers/fsl_uart_edma.c368
1 files changed, 0 insertions, 368 deletions
diff --git a/drivers/fsl_uart_edma.c b/drivers/fsl_uart_edma.c
deleted file mode 100644
index c51e493..0000000
--- a/drivers/fsl_uart_edma.c
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * Copyright (c) 2015, Freescale Semiconductor, Inc.
- * 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:
- *
- * o Redistributions of source code must retain the above copyright notice, this list
- * of conditions and the following disclaimer.
- *
- * o Redistributions in binary form must reproduce the above copyright notice, this
- * list of conditions and the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "fsl_uart_edma.h"
-#include "fsl_dmamux.h"
-
-/*******************************************************************************
- * Definitions
- ******************************************************************************/
-
-/* Array of UART handle. */
-#if (defined(UART5))
-#define UART_HANDLE_ARRAY_SIZE 6
-#else /* UART5 */
-#if (defined(UART4))
-#define UART_HANDLE_ARRAY_SIZE 5
-#else /* UART4 */
-#if (defined(UART3))
-#define UART_HANDLE_ARRAY_SIZE 4
-#else /* UART3 */
-#if (defined(UART2))
-#define UART_HANDLE_ARRAY_SIZE 3
-#else /* UART2 */
-#if (defined(UART1))
-#define UART_HANDLE_ARRAY_SIZE 2
-#else /* UART1 */
-#if (defined(UART0))
-#define UART_HANDLE_ARRAY_SIZE 1
-#else /* UART0 */
-#error No UART instance.
-#endif /* UART 0 */
-#endif /* UART 1 */
-#endif /* UART 2 */
-#endif /* UART 3 */
-#endif /* UART 4 */
-#endif /* UART 5 */
-
-/*<! Structure definition for uart_edma_private_handle_t. The structure is private. */
-typedef struct _uart_edma_private_handle
-{
- UART_Type *base;
- uart_edma_handle_t *handle;
-} uart_edma_private_handle_t;
-
-/* UART EDMA transfer handle. */
-enum _uart_edma_tansfer_states
-{
- kUART_TxIdle, /* TX idle. */
- kUART_TxBusy, /* TX busy. */
- kUART_RxIdle, /* RX idle. */
- kUART_RxBusy /* RX busy. */
-};
-
-/*******************************************************************************
- * Definitions
- ******************************************************************************/
-
-/*<! Private handle only used for internally. */
-static uart_edma_private_handle_t s_edmaPrivateHandle[UART_HANDLE_ARRAY_SIZE];
-
-/*******************************************************************************
- * Prototypes
- ******************************************************************************/
-
-/*!
- * @brief UART EDMA send finished callback function.
- *
- * This function is called when UART EDMA send finished. It disables the UART
- * TX EDMA request and sends @ref kStatus_UART_TxIdle to UART callback.
- *
- * @param handle The EDMA handle.
- * @param param Callback function parameter.
- */
-static void UART_SendEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds);
-
-/*!
- * @brief UART EDMA receive finished callback function.
- *
- * This function is called when UART EDMA receive finished. It disables the UART
- * RX EDMA request and sends @ref kStatus_UART_RxIdle to UART callback.
- *
- * @param handle The EDMA handle.
- * @param param Callback function parameter.
- */
-static void UART_ReceiveEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds);
-
-/*!
- * @brief Get the UART instance from peripheral base address.
- *
- * @param base UART peripheral base address.
- * @return UART instance.
- */
-extern uint32_t UART_GetInstance(UART_Type *base);
-
-/*******************************************************************************
- * Code
- ******************************************************************************/
-
-static void UART_SendEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds)
-{
- assert(param);
-
- uart_edma_private_handle_t *uartPrivateHandle = (uart_edma_private_handle_t *)param;
-
- /* Avoid the warning for unused variables. */
- handle = handle;
- tcds = tcds;
-
- if (transferDone)
- {
- UART_TransferAbortSendEDMA(uartPrivateHandle->base, uartPrivateHandle->handle);
-
- if (uartPrivateHandle->handle->callback)
- {
- uartPrivateHandle->handle->callback(uartPrivateHandle->base, uartPrivateHandle->handle, kStatus_UART_TxIdle,
- uartPrivateHandle->handle->userData);
- }
- }
-}
-
-static void UART_ReceiveEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds)
-{
- assert(param);
-
- uart_edma_private_handle_t *uartPrivateHandle = (uart_edma_private_handle_t *)param;
-
- /* Avoid warning for unused parameters. */
- handle = handle;
- tcds = tcds;
-
- if (transferDone)
- {
- /* Disable transfer. */
- UART_TransferAbortReceiveEDMA(uartPrivateHandle->base, uartPrivateHandle->handle);
-
- if (uartPrivateHandle->handle->callback)
- {
- uartPrivateHandle->handle->callback(uartPrivateHandle->base, uartPrivateHandle->handle, kStatus_UART_RxIdle,
- uartPrivateHandle->handle->userData);
- }
- }
-}
-
-void UART_TransferCreateHandleEDMA(UART_Type *base,
- uart_edma_handle_t *handle,
- uart_edma_transfer_callback_t callback,
- void *userData,
- edma_handle_t *txEdmaHandle,
- edma_handle_t *rxEdmaHandle)
-{
- assert(handle);
-
- uint32_t instance = UART_GetInstance(base);
-
- s_edmaPrivateHandle[instance].base = base;
- s_edmaPrivateHandle[instance].handle = handle;
-
- memset(handle, 0, sizeof(*handle));
-
- handle->rxState = kUART_RxIdle;
- handle->txState = kUART_TxIdle;
-
- handle->rxEdmaHandle = rxEdmaHandle;
- handle->txEdmaHandle = txEdmaHandle;
-
- handle->callback = callback;
- handle->userData = userData;
-
-#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO
- /* Note:
- Take care of the RX FIFO, EDMA request only assert when received bytes
- equal or more than RX water mark, there is potential issue if RX water
- mark larger than 1.
- For example, if RX FIFO water mark is 2, upper layer needs 5 bytes and
- 5 bytes are received. the last byte will be saved in FIFO but not trigger
- EDMA transfer because the water mark is 2.
- */
- if (rxEdmaHandle)
- {
- base->RWFIFO = 1U;
- }
-#endif
-
- /* Configure TX. */
- if (txEdmaHandle)
- {
- EDMA_SetCallback(handle->txEdmaHandle, UART_SendEDMACallback, &s_edmaPrivateHandle[instance]);
- }
-
- /* Configure RX. */
- if (rxEdmaHandle)
- {
- EDMA_SetCallback(handle->rxEdmaHandle, UART_ReceiveEDMACallback, &s_edmaPrivateHandle[instance]);
- }
-}
-
-status_t UART_SendEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfer_t *xfer)
-{
- assert(handle);
- assert(handle->txEdmaHandle);
- assert(xfer);
- assert(xfer->data);
- assert(xfer->dataSize);
-
- edma_transfer_config_t xferConfig;
- status_t status;
-
- /* If previous TX not finished. */
- if (kUART_TxBusy == handle->txState)
- {
- status = kStatus_UART_TxBusy;
- }
- else
- {
- handle->txState = kUART_TxBusy;
- handle->txDataSizeAll = xfer->dataSize;
-
- /* Prepare transfer. */
- 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);
-
- /* Enable UART TX EDMA. */
- UART_EnableTxDMA(base, true);
-
- status = kStatus_Success;
- }
-
- return status;
-}
-
-status_t UART_ReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle, uart_transfer_t *xfer)
-{
- assert(handle);
- assert(handle->rxEdmaHandle);
- assert(xfer);
- assert(xfer->data);
- assert(xfer->dataSize);
-
- edma_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. */
- 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);
-
- /* Enable UART RX EDMA. */
- UART_EnableRxDMA(base, true);
-
- status = kStatus_Success;
- }
-
- return status;
-}
-
-void UART_TransferAbortSendEDMA(UART_Type *base, uart_edma_handle_t *handle)
-{
- assert(handle);
- assert(handle->txEdmaHandle);
-
- /* Disable UART TX EDMA. */
- UART_EnableTxDMA(base, false);
-
- /* Stop transfer. */
- EDMA_AbortTransfer(handle->txEdmaHandle);
-
- handle->txState = kUART_TxIdle;
-}
-
-void UART_TransferAbortReceiveEDMA(UART_Type *base, uart_edma_handle_t *handle)
-{
- assert(handle);
- assert(handle->rxEdmaHandle);
-
- /* Disable UART RX EDMA. */
- UART_EnableRxDMA(base, false);
-
- /* Stop transfer. */
- EDMA_AbortTransfer(handle->rxEdmaHandle);
-
- handle->rxState = kUART_RxIdle;
-}
-
-status_t UART_TransferGetReceiveCountEDMA(UART_Type *base, uart_edma_handle_t *handle, uint32_t *count)
-{
- assert(handle);
- assert(handle->rxEdmaHandle);
- assert(count);
-
- if (kUART_RxIdle == handle->rxState)
- {
- return kStatus_NoTransferInProgress;
- }
-
- *count = handle->rxDataSizeAll -
- (uint32_t)handle->nbytes *
- EDMA_GetRemainingMajorLoopCount(handle->rxEdmaHandle->base, handle->rxEdmaHandle->channel);
-
- return kStatus_Success;
-}
-
-status_t UART_TransferGetSendCountEDMA(UART_Type *base, uart_edma_handle_t *handle, uint32_t *count)
-{
- assert(handle);
- assert(handle->txEdmaHandle);
- assert(count);
-
- if (kUART_TxIdle == handle->txState)
- {
- return kStatus_NoTransferInProgress;
- }
-
- *count = handle->txDataSizeAll -
- (uint32_t)handle->nbytes *
- EDMA_GetRemainingMajorLoopCount(handle->txEdmaHandle->base, handle->txEdmaHandle->channel);
-
- return kStatus_Success;
-}
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