summaryrefslogtreecommitdiffstats
path: root/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_lpuart_edma.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_lpuart_edma.c444
1 files changed, 0 insertions, 444 deletions
diff --git a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_lpuart_edma.c b/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_lpuart_edma.c
deleted file mode 100644
index c165539ada..0000000000
--- a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_lpuart_edma.c
+++ /dev/null
@@ -1,444 +0,0 @@
-/*
- * Copyright (c) 2015, Freescale Semiconductor, Inc.
- * Copyright 2016-2019 NXP
- * All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include "fsl_lpuart_edma.h"
-
-/*******************************************************************************
- * Definitions
- ******************************************************************************/
-
-/* Component ID definition, used by tools. */
-#ifndef FSL_COMPONENT_ID
-#define FSL_COMPONENT_ID "platform.drivers.lpuart_edma"
-#endif
-
-/*<! Structure definition for lpuart_edma_private_handle_t. The structure is private. */
-typedef struct _lpuart_edma_private_handle
-{
- LPUART_Type *base;
- lpuart_edma_handle_t *handle;
-} lpuart_edma_private_handle_t;
-
-/* LPUART EDMA transfer handle. */
-enum
-{
- kLPUART_TxIdle, /* TX idle. */
- kLPUART_TxBusy, /* TX busy. */
- kLPUART_RxIdle, /* RX idle. */
- kLPUART_RxBusy /* RX busy. */
-};
-
-/*******************************************************************************
- * Variables
- ******************************************************************************/
-
-/* Array of LPUART handle. */
-#if (defined(LPUART8))
-#define LPUART_HANDLE_ARRAY_SIZE 9
-#else /* LPUART8 */
-#if (defined(LPUART7))
-#define LPUART_HANDLE_ARRAY_SIZE 8
-#else /* LPUART7 */
-#if (defined(LPUART6))
-#define LPUART_HANDLE_ARRAY_SIZE 7
-#else /* LPUART6 */
-#if (defined(LPUART5))
-#define LPUART_HANDLE_ARRAY_SIZE 6
-#else /* LPUART5 */
-#if (defined(LPUART4))
-#define LPUART_HANDLE_ARRAY_SIZE 5
-#else /* LPUART4 */
-#if (defined(LPUART3))
-#define LPUART_HANDLE_ARRAY_SIZE 4
-#else /* LPUART3 */
-#if (defined(LPUART2))
-#define LPUART_HANDLE_ARRAY_SIZE 3
-#else /* LPUART2 */
-#if (defined(LPUART1))
-#define LPUART_HANDLE_ARRAY_SIZE 2
-#else /* LPUART1 */
-#if (defined(LPUART0))
-#define LPUART_HANDLE_ARRAY_SIZE 1
-#else /* LPUART0 */
-#define LPUART_HANDLE_ARRAY_SIZE FSL_FEATURE_SOC_LPUART_COUNT
-#endif /* LPUART 0 */
-#endif /* LPUART 1 */
-#endif /* LPUART 2 */
-#endif /* LPUART 3 */
-#endif /* LPUART 4 */
-#endif /* LPUART 5 */
-#endif /* LPUART 6 */
-#endif /* LPUART 7 */
-#endif /* LPUART 8 */
-
-/*<! Private handle only used for internally. */
-static lpuart_edma_private_handle_t s_lpuartEdmaPrivateHandle[LPUART_HANDLE_ARRAY_SIZE];
-
-/*******************************************************************************
- * Prototypes
- ******************************************************************************/
-
-/*!
- * @brief LPUART EDMA send finished callback function.
- *
- * This function is called when LPUART EDMA send finished. It disables the LPUART
- * TX EDMA request and sends @ref kStatus_LPUART_TxIdle to LPUART callback.
- *
- * @param handle The EDMA handle.
- * @param param Callback function parameter.
- */
-static void LPUART_SendEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds);
-
-/*!
- * @brief LPUART EDMA receive finished callback function.
- *
- * This function is called when LPUART EDMA receive finished. It disables the LPUART
- * RX EDMA request and sends @ref kStatus_LPUART_RxIdle to LPUART callback.
- *
- * @param handle The EDMA handle.
- * @param param Callback function parameter.
- */
-static void LPUART_ReceiveEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds);
-
-/*******************************************************************************
- * Code
- ******************************************************************************/
-
-static void LPUART_SendEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds)
-{
- assert(NULL != param);
-
- lpuart_edma_private_handle_t *lpuartPrivateHandle = (lpuart_edma_private_handle_t *)param;
-
- /* Avoid the warning for unused variables. */
- handle = handle;
- tcds = tcds;
-
- if (transferDone)
- {
- LPUART_TransferAbortSendEDMA(lpuartPrivateHandle->base, lpuartPrivateHandle->handle);
-
- /* Ensure all the data in the transmit buffer are sent out to bus. */
- while (0U == (lpuartPrivateHandle->base->STAT & LPUART_STAT_TC_MASK))
- {
- }
-
- if (NULL != lpuartPrivateHandle->handle->callback)
- {
- lpuartPrivateHandle->handle->callback(lpuartPrivateHandle->base, lpuartPrivateHandle->handle,
- kStatus_LPUART_TxIdle, lpuartPrivateHandle->handle->userData);
- }
- }
-}
-
-static void LPUART_ReceiveEDMACallback(edma_handle_t *handle, void *param, bool transferDone, uint32_t tcds)
-{
- assert(NULL != param);
-
- lpuart_edma_private_handle_t *lpuartPrivateHandle = (lpuart_edma_private_handle_t *)param;
-
- /* Avoid warning for unused parameters. */
- handle = handle;
- tcds = tcds;
-
- if (transferDone)
- {
- /* Disable transfer. */
- LPUART_TransferAbortReceiveEDMA(lpuartPrivateHandle->base, lpuartPrivateHandle->handle);
-
- if (NULL != lpuartPrivateHandle->handle->callback)
- {
- lpuartPrivateHandle->handle->callback(lpuartPrivateHandle->base, lpuartPrivateHandle->handle,
- kStatus_LPUART_RxIdle, lpuartPrivateHandle->handle->userData);
- }
- }
-}
-
-/*!
- * brief Initializes the LPUART handle which is used in transactional functions.
- * param base LPUART peripheral base address.
- * param handle Pointer to lpuart_edma_handle_t structure.
- * param callback Callback function.
- * param userData User data.
- * param txEdmaHandle User requested DMA handle for TX DMA transfer.
- * param rxEdmaHandle User requested DMA handle for RX DMA transfer.
- */
-void LPUART_TransferCreateHandleEDMA(LPUART_Type *base,
- lpuart_edma_handle_t *handle,
- lpuart_edma_transfer_callback_t callback,
- void *userData,
- edma_handle_t *txEdmaHandle,
- edma_handle_t *rxEdmaHandle)
-{
- assert(NULL != handle);
-
- uint32_t instance = LPUART_GetInstance(base);
-
- s_lpuartEdmaPrivateHandle[instance].base = base;
- s_lpuartEdmaPrivateHandle[instance].handle = handle;
-
- (void)memset(handle, 0, sizeof(*handle));
-
- handle->rxState = (uint8_t)kLPUART_RxIdle;
- handle->txState = (uint8_t)kLPUART_TxIdle;
-
- handle->rxEdmaHandle = rxEdmaHandle;
- handle->txEdmaHandle = txEdmaHandle;
-
- handle->callback = callback;
- handle->userData = userData;
-
-#if defined(FSL_FEATURE_LPUART_HAS_FIFO) && FSL_FEATURE_LPUART_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 (NULL != rxEdmaHandle)
- {
- base->WATER &= (~LPUART_WATER_RXWATER_MASK);
- }
-#endif
-
- /* Configure TX. */
- if (NULL != txEdmaHandle)
- {
- EDMA_SetCallback(handle->txEdmaHandle, LPUART_SendEDMACallback, &s_lpuartEdmaPrivateHandle[instance]);
- }
-
- /* Configure RX. */
- if (NULL != rxEdmaHandle)
- {
- EDMA_SetCallback(handle->rxEdmaHandle, LPUART_ReceiveEDMACallback, &s_lpuartEdmaPrivateHandle[instance]);
- }
-}
-
-/*!
- * brief Sends data using eDMA.
- *
- * This function sends data using eDMA. This is a non-blocking function, which returns
- * right away. When all data is sent, the send callback function is called.
- *
- * param base LPUART peripheral base address.
- * param handle LPUART handle pointer.
- * param xfer LPUART eDMA transfer structure. See #lpuart_transfer_t.
- * retval kStatus_Success if succeed, others failed.
- * retval kStatus_LPUART_TxBusy Previous transfer on going.
- * retval kStatus_InvalidArgument Invalid argument.
- */
-status_t LPUART_SendEDMA(LPUART_Type *base, lpuart_edma_handle_t *handle, lpuart_transfer_t *xfer)
-{
- assert(NULL != handle);
- assert(NULL != handle->txEdmaHandle);
- assert(NULL != xfer);
- assert(NULL != xfer->data);
- assert(0U != xfer->dataSize);
-
- edma_transfer_config_t xferConfig;
- status_t status;
-
- /* If previous TX not finished. */
- if ((uint8_t)kLPUART_TxBusy == handle->txState)
- {
- status = kStatus_LPUART_TxBusy;
- }
- else
- {
- handle->txState = (uint8_t)kLPUART_TxBusy;
- handle->txDataSizeAll = xfer->dataSize;
-
- /* Prepare transfer. */
- EDMA_PrepareTransfer(&xferConfig, xfer->data, sizeof(uint8_t),
- (void *)(uint32_t *)LPUART_GetDataRegisterAddress(base), sizeof(uint8_t), sizeof(uint8_t),
- xfer->dataSize, kEDMA_MemoryToPeripheral);
-
- /* Store the initially configured eDMA minor byte transfer count into the LPUART handle */
- handle->nbytes = (uint8_t)sizeof(uint8_t);
-
- /* Submit transfer. */
- if (kStatus_Success !=
- EDMA_SubmitTransfer(handle->txEdmaHandle, (const edma_transfer_config_t *)(uint32_t)&xferConfig))
- {
- return kStatus_Fail;
- }
- EDMA_StartTransfer(handle->txEdmaHandle);
-
- /* Enable LPUART TX EDMA. */
- LPUART_EnableTxDMA(base, true);
-
- status = kStatus_Success;
- }
-
- return status;
-}
-
-/*!
- * brief Receives data using eDMA.
- *
- * This function receives data using eDMA. This is non-blocking function, which returns
- * right away. When all data is received, the receive callback function is called.
- *
- * param base LPUART peripheral base address.
- * param handle Pointer to lpuart_edma_handle_t structure.
- * param xfer LPUART eDMA transfer structure, see #lpuart_transfer_t.
- * retval kStatus_Success if succeed, others fail.
- * retval kStatus_LPUART_RxBusy Previous transfer ongoing.
- * retval kStatus_InvalidArgument Invalid argument.
- */
-status_t LPUART_ReceiveEDMA(LPUART_Type *base, lpuart_edma_handle_t *handle, lpuart_transfer_t *xfer)
-{
- assert(NULL != handle);
- assert(NULL != handle->rxEdmaHandle);
- assert(NULL != xfer);
- assert(NULL != xfer->data);
- assert(0U != xfer->dataSize);
-
- edma_transfer_config_t xferConfig;
- status_t status;
-
- /* If previous RX not finished. */
- if ((uint8_t)kLPUART_RxBusy == handle->rxState)
- {
- status = kStatus_LPUART_RxBusy;
- }
- else
- {
- handle->rxState = (uint8_t)kLPUART_RxBusy;
- handle->rxDataSizeAll = xfer->dataSize;
-
- /* Prepare transfer. */
- EDMA_PrepareTransfer(&xferConfig, (void *)(uint32_t *)LPUART_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 LPUART handle */
- handle->nbytes = (uint8_t)sizeof(uint8_t);
-
- /* Submit transfer. */
- if (kStatus_Success !=
- EDMA_SubmitTransfer(handle->rxEdmaHandle, (const edma_transfer_config_t *)(uint32_t)&xferConfig))
- {
- return kStatus_Fail;
- }
- EDMA_StartTransfer(handle->rxEdmaHandle);
-
- /* Enable LPUART RX EDMA. */
- LPUART_EnableRxDMA(base, true);
-
- status = kStatus_Success;
- }
-
- return status;
-}
-
-/*!
- * brief Aborts the sent data using eDMA.
- *
- * This function aborts the sent data using eDMA.
- *
- * param base LPUART peripheral base address.
- * param handle Pointer to lpuart_edma_handle_t structure.
- */
-void LPUART_TransferAbortSendEDMA(LPUART_Type *base, lpuart_edma_handle_t *handle)
-{
- assert(NULL != handle);
- assert(NULL != handle->txEdmaHandle);
-
- /* Disable LPUART TX EDMA. */
- LPUART_EnableTxDMA(base, false);
-
- /* Stop transfer. */
- EDMA_AbortTransfer(handle->txEdmaHandle);
-
- handle->txState = (uint8_t)kLPUART_TxIdle;
-}
-
-/*!
- * brief Aborts the received data using eDMA.
- *
- * This function aborts the received data using eDMA.
- *
- * param base LPUART peripheral base address.
- * param handle Pointer to lpuart_edma_handle_t structure.
- */
-void LPUART_TransferAbortReceiveEDMA(LPUART_Type *base, lpuart_edma_handle_t *handle)
-{
- assert(NULL != handle);
- assert(NULL != handle->rxEdmaHandle);
-
- /* Disable LPUART RX EDMA. */
- LPUART_EnableRxDMA(base, false);
-
- /* Stop transfer. */
- EDMA_AbortTransfer(handle->rxEdmaHandle);
-
- handle->rxState = (uint8_t)kLPUART_RxIdle;
-}
-
-/*!
- * brief Gets the number of received bytes.
- *
- * This function gets the number of received bytes.
- *
- * param base LPUART peripheral base address.
- * param handle LPUART handle pointer.
- * param count Receive bytes count.
- * retval kStatus_NoTransferInProgress No receive in progress.
- * retval kStatus_InvalidArgument Parameter is invalid.
- * retval kStatus_Success Get successfully through the parameter \p count;
- */
-status_t LPUART_TransferGetReceiveCountEDMA(LPUART_Type *base, lpuart_edma_handle_t *handle, uint32_t *count)
-{
- assert(NULL != handle);
- assert(NULL != handle->rxEdmaHandle);
- assert(NULL != count);
-
- if ((uint8_t)kLPUART_RxIdle == handle->rxState)
- {
- return kStatus_NoTransferInProgress;
- }
-
- *count = handle->rxDataSizeAll -
- ((uint32_t)handle->nbytes *
- EDMA_GetRemainingMajorLoopCount(handle->rxEdmaHandle->base, handle->rxEdmaHandle->channel));
-
- return kStatus_Success;
-}
-
-/*!
- * brief Gets the number of bytes written to the LPUART TX register.
- *
- * This function gets the number of bytes written to the LPUART TX
- * register by DMA.
- *
- * param base LPUART peripheral base address.
- * param handle LPUART handle pointer.
- * param count Send bytes count.
- * retval kStatus_NoTransferInProgress No send in progress.
- * retval kStatus_InvalidArgument Parameter is invalid.
- * retval kStatus_Success Get successfully through the parameter \p count;
- */
-status_t LPUART_TransferGetSendCountEDMA(LPUART_Type *base, lpuart_edma_handle_t *handle, uint32_t *count)
-{
- assert(NULL != handle);
- assert(NULL != handle->txEdmaHandle);
- assert(NULL != count);
-
- if ((uint8_t)kLPUART_TxIdle == handle->txState)
- {
- return kStatus_NoTransferInProgress;
- }
-
- *count = handle->txDataSizeAll -
- ((uint32_t)handle->nbytes *
- EDMA_GetRemainingMajorLoopCount(handle->txEdmaHandle->base, handle->txEdmaHandle->channel));
-
- return kStatus_Success;
-}