diff options
Diffstat (limited to 'bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_sai_edma.c')
| -rw-r--r-- | bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_sai_edma.c | 707 |
1 files changed, 0 insertions, 707 deletions
diff --git a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_sai_edma.c b/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_sai_edma.c deleted file mode 100644 index edaff64ef0..0000000000 --- a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_sai_edma.c +++ /dev/null @@ -1,707 +0,0 @@ -/* - * Copyright (c) 2015, Freescale Semiconductor, Inc. - * Copyright 2016-2017 NXP - * All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include "fsl_sai_edma.h" - -/* Component ID definition, used by tools. */ -#ifndef FSL_COMPONENT_ID -#define FSL_COMPONENT_ID "platform.drivers.sai_edma" -#endif - -/******************************************************************************* - * Definitions - ******************************************************************************/ -/* Used for 32byte aligned */ -#define STCD_ADDR(address) (edma_tcd_t *)(((uint32_t)(address) + 32UL) & ~0x1FU) - -static I2S_Type *const s_saiBases[] = I2S_BASE_PTRS; - -/*<! Structure definition for uart_edma_private_handle_t. The structure is private. */ -typedef struct sai_edma_private_handle -{ - I2S_Type *base; - sai_edma_handle_t *handle; -} sai_edma_private_handle_t; - -/*! @brief sai_edma_transfer_state, sai edma transfer state.*/ -enum -{ - kSAI_Busy = 0x0U, /*!< SAI is busy */ - kSAI_Idle, /*!< Transfer is done. */ -}; - -/*<! Private handle only used for internally. */ -static sai_edma_private_handle_t s_edmaPrivateHandle[ARRAY_SIZE(s_saiBases)][2]; - -/******************************************************************************* - * Prototypes - ******************************************************************************/ -/*! - * @brief Get the instance number for SAI. - * - * @param base SAI base pointer. - */ -static uint32_t SAI_GetInstance(I2S_Type *base); - -/*! - * @brief SAI EDMA callback for send. - * - * @param handle pointer to sai_edma_handle_t structure which stores the transfer state. - * @param userData Parameter for user callback. - * @param done If the DMA transfer finished. - * @param tcds The TCD index. - */ -static void SAI_TxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds); - -/*! - * @brief SAI EDMA callback for receive. - * - * @param handle pointer to sai_edma_handle_t structure which stores the transfer state. - * @param userData Parameter for user callback. - * @param done If the DMA transfer finished. - * @param tcds The TCD index. - */ -static void SAI_RxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds); - -/******************************************************************************* - * Code - ******************************************************************************/ -static uint32_t SAI_GetInstance(I2S_Type *base) -{ - uint32_t instance; - - /* Find the instance index from base address mappings. */ - for (instance = 0; instance < ARRAY_SIZE(s_saiBases); instance++) - { - if (s_saiBases[instance] == base) - { - break; - } - } - - assert(instance < ARRAY_SIZE(s_saiBases)); - - return instance; -} - -static void SAI_TxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds) -{ - sai_edma_private_handle_t *privHandle = (sai_edma_private_handle_t *)userData; - sai_edma_handle_t *saiHandle = privHandle->handle; - - /* If finished a block, call the callback function */ - (void)memset(&saiHandle->saiQueue[saiHandle->queueDriver], 0, sizeof(sai_transfer_t)); - saiHandle->queueDriver = (saiHandle->queueDriver + 1U) % SAI_XFER_QUEUE_SIZE; - if (saiHandle->callback != NULL) - { - (saiHandle->callback)(privHandle->base, saiHandle, kStatus_SAI_TxIdle, saiHandle->userData); - } - - /* If all data finished, just stop the transfer */ - if (saiHandle->saiQueue[saiHandle->queueDriver].data == NULL) - { - /* Disable DMA enable bit */ - SAI_TxEnableDMA(privHandle->base, kSAI_FIFORequestDMAEnable, false); - EDMA_AbortTransfer(handle); - } -} - -static void SAI_RxEDMACallback(edma_handle_t *handle, void *userData, bool done, uint32_t tcds) -{ - sai_edma_private_handle_t *privHandle = (sai_edma_private_handle_t *)userData; - sai_edma_handle_t *saiHandle = privHandle->handle; - - /* If finished a block, call the callback function */ - (void)memset(&saiHandle->saiQueue[saiHandle->queueDriver], 0, sizeof(sai_transfer_t)); - saiHandle->queueDriver = (saiHandle->queueDriver + 1U) % SAI_XFER_QUEUE_SIZE; - if (saiHandle->callback != NULL) - { - (saiHandle->callback)(privHandle->base, saiHandle, kStatus_SAI_RxIdle, saiHandle->userData); - } - - /* If all data finished, just stop the transfer */ - if (saiHandle->saiQueue[saiHandle->queueDriver].data == NULL) - { - /* Disable DMA enable bit */ - SAI_RxEnableDMA(privHandle->base, kSAI_FIFORequestDMAEnable, false); - EDMA_AbortTransfer(handle); - } -} - -/*! - * brief Initializes the SAI eDMA handle. - * - * This function initializes the SAI master DMA handle, which can be used for other SAI master transactional APIs. - * Usually, for a specified SAI instance, call this API once to get the initialized handle. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - * param base SAI peripheral base address. - * param callback Pointer to user callback function. - * param userData User parameter passed to the callback function. - * param dmaHandle eDMA handle pointer, this handle shall be static allocated by users. - */ -void SAI_TransferTxCreateHandleEDMA( - I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *txDmaHandle) -{ - assert((handle != NULL) && (txDmaHandle != NULL)); - - uint32_t instance = SAI_GetInstance(base); - - /* Zero the handle */ - (void)memset(handle, 0, sizeof(*handle)); - - /* Set sai base to handle */ - handle->dmaHandle = txDmaHandle; - handle->callback = callback; - handle->userData = userData; - - /* Set SAI state to idle */ - handle->state = (uint32_t)kSAI_Idle; - - s_edmaPrivateHandle[instance][0].base = base; - s_edmaPrivateHandle[instance][0].handle = handle; - - /* Need to use scatter gather */ - EDMA_InstallTCDMemory(txDmaHandle, (edma_tcd_t *)(STCD_ADDR(handle->tcd)), SAI_XFER_QUEUE_SIZE); - - /* Install callback for Tx dma channel */ - EDMA_SetCallback(txDmaHandle, SAI_TxEDMACallback, &s_edmaPrivateHandle[instance][0]); -} - -/*! - * brief Initializes the SAI Rx eDMA handle. - * - * This function initializes the SAI slave DMA handle, which can be used for other SAI master transactional APIs. - * Usually, for a specified SAI instance, call this API once to get the initialized handle. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - * param base SAI peripheral base address. - * param callback Pointer to user callback function. - * param userData User parameter passed to the callback function. - * param dmaHandle eDMA handle pointer, this handle shall be static allocated by users. - */ -void SAI_TransferRxCreateHandleEDMA( - I2S_Type *base, sai_edma_handle_t *handle, sai_edma_callback_t callback, void *userData, edma_handle_t *rxDmaHandle) -{ - assert((handle != NULL) && (rxDmaHandle != NULL)); - - uint32_t instance = SAI_GetInstance(base); - - /* Zero the handle */ - (void)memset(handle, 0, sizeof(*handle)); - - /* Set sai base to handle */ - handle->dmaHandle = rxDmaHandle; - handle->callback = callback; - handle->userData = userData; - - /* Set SAI state to idle */ - handle->state = (uint32_t)kSAI_Idle; - - s_edmaPrivateHandle[instance][1].base = base; - s_edmaPrivateHandle[instance][1].handle = handle; - - /* Need to use scatter gather */ - EDMA_InstallTCDMemory(rxDmaHandle, STCD_ADDR(handle->tcd), SAI_XFER_QUEUE_SIZE); - - /* Install callback for Tx dma channel */ - EDMA_SetCallback(rxDmaHandle, SAI_RxEDMACallback, &s_edmaPrivateHandle[instance][1]); -} - -/*! - * brief Configures the SAI Tx audio format. - * - * The audio format can be changed at run-time. This function configures the sample rate and audio data - * format to be transferred. This function also sets the eDMA parameter according to formatting requirements. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - * param format Pointer to SAI audio data format structure. - * param mclkSourceClockHz SAI master clock source frequency in Hz. - * param bclkSourceClockHz SAI bit clock source frequency in Hz. If bit clock source is master - * clock, this value should equals to masterClockHz in format. - * retval kStatus_Success Audio format set successfully. - * retval kStatus_InvalidArgument The input argument is invalid. - */ -void SAI_TransferTxSetFormatEDMA(I2S_Type *base, - sai_edma_handle_t *handle, - sai_transfer_format_t *format, - uint32_t mclkSourceClockHz, - uint32_t bclkSourceClockHz) -{ - assert((handle != NULL) && (format != NULL)); - - /* Configure the audio format to SAI registers */ - SAI_TxSetFormat(base, format, mclkSourceClockHz, bclkSourceClockHz); - - /* Get the transfer size from format, this should be used in EDMA configuration */ - if (format->bitWidth == 24U) - { - handle->bytesPerFrame = 4U; - } - else - { - handle->bytesPerFrame = (uint8_t)(format->bitWidth / 8U); - } - - /* Update the data channel SAI used */ - handle->channel = format->channel; - - /* Clear the channel enable bits until do a send/receive */ - base->TCR3 &= ~I2S_TCR3_TCE_MASK; -#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) - handle->count = (uint8_t)((uint32_t)FSL_FEATURE_SAI_FIFO_COUNT - format->watermark); -#else - handle->count = 1U; -#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ -} - -/*! - * @brief Configures the SAI Tx. - * - * - * @param base SAI base pointer. - * @param handle SAI eDMA handle pointer. - * @param saiConfig sai configurations. - */ -void SAI_TransferTxSetConfigEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transceiver_t *saiConfig) -{ - assert((handle != NULL) && (saiConfig != NULL)); - - /* Configure the audio format to SAI registers */ - SAI_TxSetConfig(base, saiConfig); - - /* Get the transfer size from format, this should be used in EDMA configuration */ - if (saiConfig->serialData.dataWordLength == 24U) - { - handle->bytesPerFrame = 4U; - } - else - { - handle->bytesPerFrame = saiConfig->serialData.dataWordLength / 8U; - } - /* Update the data channel SAI used */ - handle->channel = saiConfig->startChannel; - - /* Clear the channel enable bits until do a send/receive */ - base->TCR3 &= ~I2S_TCR3_TCE_MASK; -#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) - handle->count = (uint8_t)((uint32_t)FSL_FEATURE_SAI_FIFO_COUNT - saiConfig->fifo.fifoWatermark); -#else - handle->count = 1U; -#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ -} - -/*! - * brief Configures the SAI Rx audio format. - * - * The audio format can be changed at run-time. This function configures the sample rate and audio data - * format to be transferred. This function also sets the eDMA parameter according to formatting requirements. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - * param format Pointer to SAI audio data format structure. - * param mclkSourceClockHz SAI master clock source frequency in Hz. - * param bclkSourceClockHz SAI bit clock source frequency in Hz. If a bit clock source is the master - * clock, this value should equal to masterClockHz in format. - * retval kStatus_Success Audio format set successfully. - * retval kStatus_InvalidArgument The input argument is invalid. - */ -void SAI_TransferRxSetFormatEDMA(I2S_Type *base, - sai_edma_handle_t *handle, - sai_transfer_format_t *format, - uint32_t mclkSourceClockHz, - uint32_t bclkSourceClockHz) -{ - assert((handle != NULL) && (format != NULL)); - - /* Configure the audio format to SAI registers */ - SAI_RxSetFormat(base, format, mclkSourceClockHz, bclkSourceClockHz); - - /* Get the transfer size from format, this should be used in EDMA configuration */ - if (format->bitWidth == 24U) - { - handle->bytesPerFrame = 4U; - } - else - { - handle->bytesPerFrame = (uint8_t)(format->bitWidth / 8U); - } - - /* Update the data channel SAI used */ - handle->channel = format->channel; - - /* Clear the channel enable bits until do a send/receive */ - base->RCR3 &= ~I2S_RCR3_RCE_MASK; -#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) - handle->count = format->watermark; -#else - handle->count = 1U; -#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ -} - -/*! - * @brief Configures the SAI Rx. - * - * - * @param base SAI base pointer. - * @param handle SAI eDMA handle pointer. - * @param saiConfig sai configurations. - */ -void SAI_TransferRxSetConfigEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transceiver_t *saiConfig) -{ - assert((handle != NULL) && (saiConfig != NULL)); - - /* Configure the audio format to SAI registers */ - SAI_RxSetConfig(base, saiConfig); - - /* Get the transfer size from format, this should be used in EDMA configuration */ - if (saiConfig->serialData.dataWordLength == 24U) - { - handle->bytesPerFrame = 4U; - } - else - { - handle->bytesPerFrame = saiConfig->serialData.dataWordLength / 8U; - } - - /* Update the data channel SAI used */ - handle->channel = saiConfig->startChannel; - - /* Clear the channel enable bits until do a send/receive */ - base->RCR3 &= ~I2S_RCR3_RCE_MASK; -#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1) - handle->count = saiConfig->fifo.fifoWatermark; -#else - handle->count = 1U; -#endif /* FSL_FEATURE_SAI_FIFO_COUNT */ -} - -/*! - * brief Performs a non-blocking SAI transfer using DMA. - * - * note This interface returns immediately after the transfer initiates. Call - * SAI_GetTransferStatus to poll the transfer status and check whether the SAI transfer is finished. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - * param xfer Pointer to the DMA transfer structure. - * retval kStatus_Success Start a SAI eDMA send successfully. - * retval kStatus_InvalidArgument The input argument is invalid. - * retval kStatus_TxBusy SAI is busy sending data. - */ -status_t SAI_TransferSendEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer) -{ - assert((handle != NULL) && (xfer != NULL)); - - edma_transfer_config_t config = {0}; - uint32_t destAddr = SAI_TxGetDataRegisterAddress(base, handle->channel); - - /* Check if input parameter invalid */ - if ((xfer->data == NULL) || (xfer->dataSize == 0U)) - { - return kStatus_InvalidArgument; - } - - if (handle->saiQueue[handle->queueUser].data != NULL) - { - return kStatus_SAI_QueueFull; - } - - /* Change the state of handle */ - handle->state = (uint32_t)kSAI_Busy; - - /* Update the queue state */ - handle->transferSize[handle->queueUser] = xfer->dataSize; - handle->saiQueue[handle->queueUser].data = xfer->data; - handle->saiQueue[handle->queueUser].dataSize = xfer->dataSize; - handle->queueUser = (handle->queueUser + 1U) % SAI_XFER_QUEUE_SIZE; - - /* Prepare edma configure */ - EDMA_PrepareTransfer(&config, xfer->data, handle->bytesPerFrame, (uint32_t *)destAddr, handle->bytesPerFrame, - (uint32_t)handle->count * handle->bytesPerFrame, xfer->dataSize, kEDMA_MemoryToPeripheral); - - /* Store the initially configured eDMA minor byte transfer count into the SAI handle */ - handle->nbytes = handle->count * handle->bytesPerFrame; - - if (EDMA_SubmitTransfer(handle->dmaHandle, &config) != kStatus_Success) - { - return kStatus_SAI_QueueFull; - } - - /* Start DMA transfer */ - EDMA_StartTransfer(handle->dmaHandle); - - /* Enable DMA enable bit */ - SAI_TxEnableDMA(base, kSAI_FIFORequestDMAEnable, true); - - /* Enable SAI Tx clock */ - SAI_TxEnable(base, true); - - /* Enable the channel FIFO */ - base->TCR3 |= I2S_TCR3_TCE(1UL << handle->channel); - - return kStatus_Success; -} - -/*! - * brief Performs a non-blocking SAI receive using eDMA. - * - * note This interface returns immediately after the transfer initiates. Call - * the SAI_GetReceiveRemainingBytes to poll the transfer status and check whether the SAI transfer is finished. - * - * param base SAI base pointer - * param handle SAI eDMA handle pointer. - * param xfer Pointer to DMA transfer structure. - * retval kStatus_Success Start a SAI eDMA receive successfully. - * retval kStatus_InvalidArgument The input argument is invalid. - * retval kStatus_RxBusy SAI is busy receiving data. - */ -status_t SAI_TransferReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle, sai_transfer_t *xfer) -{ - assert((handle != NULL) && (xfer != NULL)); - - edma_transfer_config_t config = {0}; - uint32_t srcAddr = SAI_RxGetDataRegisterAddress(base, handle->channel); - - /* Check if input parameter invalid */ - if ((xfer->data == NULL) || (xfer->dataSize == 0U)) - { - return kStatus_InvalidArgument; - } - - if (handle->saiQueue[handle->queueUser].data != NULL) - { - return kStatus_SAI_QueueFull; - } - - /* Change the state of handle */ - handle->state = (uint32_t)kSAI_Busy; - - /* Update queue state */ - handle->transferSize[handle->queueUser] = xfer->dataSize; - handle->saiQueue[handle->queueUser].data = xfer->data; - handle->saiQueue[handle->queueUser].dataSize = xfer->dataSize; - handle->queueUser = (handle->queueUser + 1U) % SAI_XFER_QUEUE_SIZE; - - /* Prepare edma configure */ - EDMA_PrepareTransfer(&config, (uint32_t *)srcAddr, handle->bytesPerFrame, xfer->data, handle->bytesPerFrame, - (uint32_t)handle->count * handle->bytesPerFrame, xfer->dataSize, kEDMA_PeripheralToMemory); - - /* Store the initially configured eDMA minor byte transfer count into the SAI handle */ - handle->nbytes = handle->count * handle->bytesPerFrame; - - if (EDMA_SubmitTransfer(handle->dmaHandle, &config) != kStatus_Success) - { - return kStatus_SAI_QueueFull; - } - - /* Start DMA transfer */ - EDMA_StartTransfer(handle->dmaHandle); - - /* Enable DMA enable bit */ - SAI_RxEnableDMA(base, kSAI_FIFORequestDMAEnable, true); - - /* Enable the channel FIFO */ - base->RCR3 |= I2S_RCR3_RCE(1UL << handle->channel); - - /* Enable SAI Rx clock */ - SAI_RxEnable(base, true); - - return kStatus_Success; -} - -/*! - * brief Aborts a SAI transfer using eDMA. - * - * This function only aborts the current transfer slots, the other transfer slots' information still kept - * in the handler. If users want to terminate all transfer slots, just call SAI_TransferTerminateSendEDMA. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - */ -void SAI_TransferAbortSendEDMA(I2S_Type *base, sai_edma_handle_t *handle) -{ - assert(handle != NULL); - - /* Disable dma */ - EDMA_AbortTransfer(handle->dmaHandle); - - /* Disable the channel FIFO */ - base->TCR3 &= ~I2S_TCR3_TCE_MASK; - - /* Disable DMA enable bit */ - SAI_TxEnableDMA(base, kSAI_FIFORequestDMAEnable, false); - - /* Disable Tx */ - SAI_TxEnable(base, false); - - /* If Tx is disabled, reset the FIFO pointer and clear error flags */ - if ((base->TCSR & I2S_TCSR_TE_MASK) == 0UL) - { - base->TCSR |= (I2S_TCSR_FR_MASK | I2S_TCSR_SR_MASK); - base->TCSR &= ~I2S_TCSR_SR_MASK; - } - - /* Handle the queue index */ - (void)memset(&handle->saiQueue[handle->queueDriver], 0, sizeof(sai_transfer_t)); - handle->queueDriver = (handle->queueDriver + 1U) % SAI_XFER_QUEUE_SIZE; - - /* Set the handle state */ - handle->state = (uint32_t)kSAI_Idle; -} - -/*! - * brief Aborts a SAI receive using eDMA. - * - * This function only aborts the current transfer slots, the other transfer slots' information still kept - * in the handler. If users want to terminate all transfer slots, just call SAI_TransferTerminateReceiveEDMA. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - */ -void SAI_TransferAbortReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle) -{ - assert(handle != NULL); - - /* Disable dma */ - EDMA_AbortTransfer(handle->dmaHandle); - - /* Disable the channel FIFO */ - base->RCR3 &= ~I2S_RCR3_RCE_MASK; - - /* Disable DMA enable bit */ - SAI_RxEnableDMA(base, kSAI_FIFORequestDMAEnable, false); - - /* Disable Rx */ - SAI_RxEnable(base, false); - - /* If Rx is disabled, reset the FIFO pointer and clear error flags */ - if ((base->RCSR & I2S_RCSR_RE_MASK) == 0UL) - { - base->RCSR |= (I2S_RCSR_FR_MASK | I2S_RCSR_SR_MASK); - base->RCSR &= ~I2S_RCSR_SR_MASK; - } - - /* Handle the queue index */ - (void)memset(&handle->saiQueue[handle->queueDriver], 0, sizeof(sai_transfer_t)); - handle->queueDriver = (handle->queueDriver + 1U) % SAI_XFER_QUEUE_SIZE; - - /* Set the handle state */ - handle->state = (uint32_t)kSAI_Idle; -} - -/*! - * brief Terminate all SAI send. - * - * This function will clear all transfer slots buffered in the sai queue. If users only want to abort the - * current transfer slot, please call SAI_TransferAbortSendEDMA. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - */ -void SAI_TransferTerminateSendEDMA(I2S_Type *base, sai_edma_handle_t *handle) -{ - assert(handle != NULL); - - /* Abort the current transfer */ - SAI_TransferAbortSendEDMA(base, handle); - - /* Clear all the internal information */ - (void)memset(handle->tcd, 0, sizeof(handle->tcd)); - (void)memset(handle->saiQueue, 0, sizeof(handle->saiQueue)); - (void)memset(handle->transferSize, 0, sizeof(handle->transferSize)); - - handle->queueUser = 0U; - handle->queueDriver = 0U; -} - -/*! - * brief Terminate all SAI receive. - * - * This function will clear all transfer slots buffered in the sai queue. If users only want to abort the - * current transfer slot, please call SAI_TransferAbortReceiveEDMA. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - */ -void SAI_TransferTerminateReceiveEDMA(I2S_Type *base, sai_edma_handle_t *handle) -{ - assert(handle != NULL); - - /* Abort the current transfer */ - SAI_TransferAbortReceiveEDMA(base, handle); - - /* Clear all the internal information */ - (void)memset(handle->tcd, 0, sizeof(handle->tcd)); - (void)memset(handle->saiQueue, 0, sizeof(handle->saiQueue)); - (void)memset(handle->transferSize, 0, sizeof(handle->transferSize)); - - handle->queueUser = 0U; - handle->queueDriver = 0U; -} - -/*! - * brief Gets byte count sent by SAI. - * - * param base SAI base pointer. - * param handle SAI eDMA handle pointer. - * param count Bytes count sent by SAI. - * retval kStatus_Success Succeed get the transfer count. - * retval kStatus_NoTransferInProgress There is no non-blocking transaction in progress. - */ -status_t SAI_TransferGetSendCountEDMA(I2S_Type *base, sai_edma_handle_t *handle, size_t *count) -{ - assert(handle != NULL); - - status_t status = kStatus_Success; - - if (handle->state != (uint32_t)kSAI_Busy) - { - status = kStatus_NoTransferInProgress; - } - else - { - *count = (handle->transferSize[handle->queueDriver] - - (uint32_t)handle->nbytes * - EDMA_GetRemainingMajorLoopCount(handle->dmaHandle->base, handle->dmaHandle->channel)); - } - - return status; -} - -/*! - * brief Gets byte count received by SAI. - * - * param base SAI base pointer - * param handle SAI eDMA handle pointer. - * param count Bytes count received by SAI. - * retval kStatus_Success Succeed get the transfer count. - * retval kStatus_NoTransferInProgress There is no non-blocking transaction in progress. - */ -status_t SAI_TransferGetReceiveCountEDMA(I2S_Type *base, sai_edma_handle_t *handle, size_t *count) -{ - assert(handle != NULL); - - status_t status = kStatus_Success; - - if (handle->state != (uint32_t)kSAI_Busy) - { - status = kStatus_NoTransferInProgress; - } - else - { - *count = (handle->transferSize[handle->queueDriver] - - (uint32_t)handle->nbytes * - EDMA_GetRemainingMajorLoopCount(handle->dmaHandle->base, handle->dmaHandle->channel)); - } - - return status; -} |