1587 lines
55 KiB
C
1587 lines
55 KiB
C
/*
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* Copyright (c) 2015, Freescale Semiconductor, Inc.
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* Copyright 2016-2020 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _FSL_SAI_H_
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#define _FSL_SAI_H_
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#include "fsl_common.h"
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/*!
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* @addtogroup sai_driver SAI Driver
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* @{
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*/
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*! @name Driver version */
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/*@{*/
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#define FSL_SAI_DRIVER_VERSION (MAKE_VERSION(2, 3, 4)) /*!< Version 2.3.4 */
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/*@}*/
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/*! @brief _sai_status_t, SAI return status.*/
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enum
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{
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kStatus_SAI_TxBusy = MAKE_STATUS(kStatusGroup_SAI, 0), /*!< SAI Tx is busy. */
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kStatus_SAI_RxBusy = MAKE_STATUS(kStatusGroup_SAI, 1), /*!< SAI Rx is busy. */
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kStatus_SAI_TxError = MAKE_STATUS(kStatusGroup_SAI, 2), /*!< SAI Tx FIFO error. */
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kStatus_SAI_RxError = MAKE_STATUS(kStatusGroup_SAI, 3), /*!< SAI Rx FIFO error. */
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kStatus_SAI_QueueFull = MAKE_STATUS(kStatusGroup_SAI, 4), /*!< SAI transfer queue is full. */
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kStatus_SAI_TxIdle = MAKE_STATUS(kStatusGroup_SAI, 5), /*!< SAI Tx is idle */
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kStatus_SAI_RxIdle = MAKE_STATUS(kStatusGroup_SAI, 6) /*!< SAI Rx is idle */
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};
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/*! @brief _sai_channel_mask,.sai channel mask value, actual channel numbers is depend soc specific */
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enum
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{
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kSAI_Channel0Mask = 1 << 0U, /*!< channel 0 mask value */
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kSAI_Channel1Mask = 1 << 1U, /*!< channel 1 mask value */
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kSAI_Channel2Mask = 1 << 2U, /*!< channel 2 mask value */
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kSAI_Channel3Mask = 1 << 3U, /*!< channel 3 mask value */
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kSAI_Channel4Mask = 1 << 4U, /*!< channel 4 mask value */
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kSAI_Channel5Mask = 1 << 5U, /*!< channel 5 mask value */
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kSAI_Channel6Mask = 1 << 6U, /*!< channel 6 mask value */
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kSAI_Channel7Mask = 1 << 7U, /*!< channel 7 mask value */
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};
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/*! @brief Define the SAI bus type */
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typedef enum _sai_protocol
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{
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kSAI_BusLeftJustified = 0x0U, /*!< Uses left justified format.*/
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kSAI_BusRightJustified, /*!< Uses right justified format. */
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kSAI_BusI2S, /*!< Uses I2S format. */
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kSAI_BusPCMA, /*!< Uses I2S PCM A format.*/
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kSAI_BusPCMB /*!< Uses I2S PCM B format. */
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} sai_protocol_t;
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/*! @brief Master or slave mode */
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typedef enum _sai_master_slave
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{
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kSAI_Master = 0x0U, /*!< Master mode include bclk and frame sync */
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kSAI_Slave = 0x1U, /*!< Slave mode include bclk and frame sync */
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kSAI_Bclk_Master_FrameSync_Slave = 0x2U, /*!< bclk in master mode, frame sync in slave mode */
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kSAI_Bclk_Slave_FrameSync_Master = 0x3U, /*!< bclk in slave mode, frame sync in master mode */
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} sai_master_slave_t;
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/*! @brief Mono or stereo audio format */
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typedef enum _sai_mono_stereo
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{
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kSAI_Stereo = 0x0U, /*!< Stereo sound. */
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kSAI_MonoRight, /*!< Only Right channel have sound. */
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kSAI_MonoLeft /*!< Only left channel have sound. */
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} sai_mono_stereo_t;
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/*! @brief SAI data order, MSB or LSB */
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typedef enum _sai_data_order
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{
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kSAI_DataLSB = 0x0U, /*!< LSB bit transferred first */
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kSAI_DataMSB /*!< MSB bit transferred first */
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} sai_data_order_t;
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/*! @brief SAI clock polarity, active high or low */
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typedef enum _sai_clock_polarity
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{
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kSAI_PolarityActiveHigh = 0x0U, /*!< Drive outputs on rising edge */
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kSAI_PolarityActiveLow = 0x1U, /*!< Drive outputs on falling edge */
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kSAI_SampleOnFallingEdge = 0x0U, /*!< Sample inputs on falling edge */
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kSAI_SampleOnRisingEdge = 0x1U, /*!< Sample inputs on rising edge */
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} sai_clock_polarity_t;
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/*! @brief Synchronous or asynchronous mode */
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typedef enum _sai_sync_mode
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{
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kSAI_ModeAsync = 0x0U, /*!< Asynchronous mode */
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kSAI_ModeSync, /*!< Synchronous mode (with receiver or transmit) */
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#if defined(FSL_FEATURE_SAI_HAS_SYNC_WITH_ANOTHER_SAI) && (FSL_FEATURE_SAI_HAS_SYNC_WITH_ANOTHER_SAI)
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kSAI_ModeSyncWithOtherTx, /*!< Synchronous with another SAI transmit */
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kSAI_ModeSyncWithOtherRx /*!< Synchronous with another SAI receiver */
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#endif /* FSL_FEATURE_SAI_HAS_SYNC_WITH_ANOTHER_SAI */
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} sai_sync_mode_t;
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#if !(defined(FSL_FEATURE_SAI_HAS_NO_MCR_MICS) && (FSL_FEATURE_SAI_HAS_NO_MCR_MICS))
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/*! @brief Mater clock source */
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typedef enum _sai_mclk_source
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{
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kSAI_MclkSourceSysclk = 0x0U, /*!< Master clock from the system clock */
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kSAI_MclkSourceSelect1, /*!< Master clock from source 1 */
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kSAI_MclkSourceSelect2, /*!< Master clock from source 2 */
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kSAI_MclkSourceSelect3 /*!< Master clock from source 3 */
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} sai_mclk_source_t;
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#endif
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/*! @brief Bit clock source */
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typedef enum _sai_bclk_source
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{
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kSAI_BclkSourceBusclk = 0x0U, /*!< Bit clock using bus clock */
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/* General device bit source definition */
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kSAI_BclkSourceMclkOption1 = 0x1U, /*!< Bit clock MCLK option 1 */
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kSAI_BclkSourceMclkOption2 = 0x2U, /*!< Bit clock MCLK option2 */
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kSAI_BclkSourceMclkOption3 = 0x3U, /*!< Bit clock MCLK option3 */
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/* Kinetis device bit clock source definition */
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kSAI_BclkSourceMclkDiv = 0x1U, /*!< Bit clock using master clock divider */
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kSAI_BclkSourceOtherSai0 = 0x2U, /*!< Bit clock from other SAI device */
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kSAI_BclkSourceOtherSai1 = 0x3U /*!< Bit clock from other SAI device */
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} sai_bclk_source_t;
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/*! @brief _sai_interrupt_enable_t, The SAI interrupt enable flag */
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enum
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{
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kSAI_WordStartInterruptEnable =
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I2S_TCSR_WSIE_MASK, /*!< Word start flag, means the first word in a frame detected */
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kSAI_SyncErrorInterruptEnable = I2S_TCSR_SEIE_MASK, /*!< Sync error flag, means the sync error is detected */
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kSAI_FIFOWarningInterruptEnable = I2S_TCSR_FWIE_MASK, /*!< FIFO warning flag, means the FIFO is empty */
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kSAI_FIFOErrorInterruptEnable = I2S_TCSR_FEIE_MASK, /*!< FIFO error flag */
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#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1)
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kSAI_FIFORequestInterruptEnable = I2S_TCSR_FRIE_MASK, /*!< FIFO request, means reached watermark */
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#endif /* FSL_FEATURE_SAI_FIFO_COUNT */
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};
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/*! @brief _sai_dma_enable_t, The DMA request sources */
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enum
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{
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kSAI_FIFOWarningDMAEnable = I2S_TCSR_FWDE_MASK, /*!< FIFO warning caused by the DMA request */
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#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1)
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kSAI_FIFORequestDMAEnable = I2S_TCSR_FRDE_MASK, /*!< FIFO request caused by the DMA request */
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#endif /* FSL_FEATURE_SAI_FIFO_COUNT */
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};
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/*! @brief _sai_flags, The SAI status flag */
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enum
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{
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kSAI_WordStartFlag = I2S_TCSR_WSF_MASK, /*!< Word start flag, means the first word in a frame detected */
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kSAI_SyncErrorFlag = I2S_TCSR_SEF_MASK, /*!< Sync error flag, means the sync error is detected */
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kSAI_FIFOErrorFlag = I2S_TCSR_FEF_MASK, /*!< FIFO error flag */
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#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1)
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kSAI_FIFORequestFlag = I2S_TCSR_FRF_MASK, /*!< FIFO request flag. */
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#endif /* FSL_FEATURE_SAI_FIFO_COUNT */
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kSAI_FIFOWarningFlag = I2S_TCSR_FWF_MASK, /*!< FIFO warning flag */
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};
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/*! @brief The reset type */
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typedef enum _sai_reset_type
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{
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kSAI_ResetTypeSoftware = I2S_TCSR_SR_MASK, /*!< Software reset, reset the logic state */
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kSAI_ResetTypeFIFO = I2S_TCSR_FR_MASK, /*!< FIFO reset, reset the FIFO read and write pointer */
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kSAI_ResetAll = I2S_TCSR_SR_MASK | I2S_TCSR_FR_MASK /*!< All reset. */
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} sai_reset_type_t;
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#if defined(FSL_FEATURE_SAI_HAS_FIFO_PACKING) && FSL_FEATURE_SAI_HAS_FIFO_PACKING
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/*!
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* @brief The SAI packing mode
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* The mode includes 8 bit and 16 bit packing.
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*/
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typedef enum _sai_fifo_packing
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{
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kSAI_FifoPackingDisabled = 0x0U, /*!< Packing disabled */
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kSAI_FifoPacking8bit = 0x2U, /*!< 8 bit packing enabled */
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kSAI_FifoPacking16bit = 0x3U /*!< 16bit packing enabled */
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} sai_fifo_packing_t;
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#endif /* FSL_FEATURE_SAI_HAS_FIFO_PACKING */
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/*! @brief SAI user configuration structure */
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typedef struct _sai_config
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{
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sai_protocol_t protocol; /*!< Audio bus protocol in SAI */
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sai_sync_mode_t syncMode; /*!< SAI sync mode, control Tx/Rx clock sync */
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#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR)
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bool mclkOutputEnable; /*!< Master clock output enable, true means master clock divider enabled */
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#if !(defined(FSL_FEATURE_SAI_HAS_NO_MCR_MICS) && (FSL_FEATURE_SAI_HAS_NO_MCR_MICS))
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sai_mclk_source_t mclkSource; /*!< Master Clock source */
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#endif /* FSL_FEATURE_SAI_HAS_MCR */
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#endif
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sai_bclk_source_t bclkSource; /*!< Bit Clock source */
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sai_master_slave_t masterSlave; /*!< Master or slave */
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} sai_config_t;
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#ifndef SAI_XFER_QUEUE_SIZE
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/*!@brief SAI transfer queue size, user can refine it according to use case. */
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#define SAI_XFER_QUEUE_SIZE (4U)
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#endif
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/*! @brief Audio sample rate */
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typedef enum _sai_sample_rate
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{
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kSAI_SampleRate8KHz = 8000U, /*!< Sample rate 8000 Hz */
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kSAI_SampleRate11025Hz = 11025U, /*!< Sample rate 11025 Hz */
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kSAI_SampleRate12KHz = 12000U, /*!< Sample rate 12000 Hz */
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kSAI_SampleRate16KHz = 16000U, /*!< Sample rate 16000 Hz */
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kSAI_SampleRate22050Hz = 22050U, /*!< Sample rate 22050 Hz */
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kSAI_SampleRate24KHz = 24000U, /*!< Sample rate 24000 Hz */
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kSAI_SampleRate32KHz = 32000U, /*!< Sample rate 32000 Hz */
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kSAI_SampleRate44100Hz = 44100U, /*!< Sample rate 44100 Hz */
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kSAI_SampleRate48KHz = 48000U, /*!< Sample rate 48000 Hz */
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kSAI_SampleRate96KHz = 96000U, /*!< Sample rate 96000 Hz */
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kSAI_SampleRate192KHz = 192000U, /*!< Sample rate 192000 Hz */
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kSAI_SampleRate384KHz = 384000U, /*!< Sample rate 384000 Hz */
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} sai_sample_rate_t;
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/*! @brief Audio word width */
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typedef enum _sai_word_width
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{
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kSAI_WordWidth8bits = 8U, /*!< Audio data width 8 bits */
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kSAI_WordWidth16bits = 16U, /*!< Audio data width 16 bits */
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kSAI_WordWidth24bits = 24U, /*!< Audio data width 24 bits */
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kSAI_WordWidth32bits = 32U /*!< Audio data width 32 bits */
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} sai_word_width_t;
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#if defined(FSL_FEATURE_SAI_HAS_CHANNEL_MODE) && FSL_FEATURE_SAI_HAS_CHANNEL_MODE
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/*! @brief sai data pin state definition */
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typedef enum _sai_data_pin_state
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{
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kSAI_DataPinStateTriState =
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0U, /*!< transmit data pins are tri-stated when slots are masked or channels are disabled */
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kSAI_DataPinStateOutputZero = 1U, /*!< transmit data pins are never tri-stated and will output zero when slots
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are masked or channel disabled */
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} sai_data_pin_state_t;
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#endif
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#if defined(FSL_FEATURE_SAI_HAS_FIFO_COMBINE_MODE) && FSL_FEATURE_SAI_HAS_FIFO_COMBINE_MODE
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/*! @brief sai fifo combine mode definition */
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typedef enum _sai_fifo_combine
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{
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kSAI_FifoCombineDisabled = 0U, /*!< sai fifo combine mode disabled */
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kSAI_FifoCombineModeEnabledOnRead, /*!< sai fifo combine mode enabled on FIFO reads */
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kSAI_FifoCombineModeEnabledOnWrite, /*!< sai fifo combine mode enabled on FIFO write */
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kSAI_FifoCombineModeEnabledOnReadWrite, /*!< sai fifo combined mode enabled on FIFO read/writes */
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} sai_fifo_combine_t;
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#endif
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/*! @brief sai transceiver type */
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typedef enum _sai_transceiver_type
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{
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kSAI_Transmitter = 0U, /*!< sai transmitter */
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kSAI_Receiver = 1U, /*!< sai receiver */
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} sai_transceiver_type_t;
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/*! @brief sai frame sync len */
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typedef enum _sai_frame_sync_len
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{
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kSAI_FrameSyncLenOneBitClk = 0U, /*!< 1 bit clock frame sync len for DSP mode */
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kSAI_FrameSyncLenPerWordWidth = 1U, /*!< Frame sync length decided by word width */
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} sai_frame_sync_len_t;
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/*! @brief sai transfer format */
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typedef struct _sai_transfer_format
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{
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uint32_t sampleRate_Hz; /*!< Sample rate of audio data */
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uint32_t bitWidth; /*!< Data length of audio data, usually 8/16/24/32 bits */
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sai_mono_stereo_t stereo; /*!< Mono or stereo */
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#if defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER)
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uint32_t masterClockHz; /*!< Master clock frequency in Hz */
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#endif /* FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER */
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#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1)
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uint8_t watermark; /*!< Watermark value */
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#endif /* FSL_FEATURE_SAI_FIFO_COUNT */
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/* for the multi channel usage, user can provide channelMask Oonly, then sai driver will handle
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* other parameter carefully, such as
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* channelMask = kSAI_Channel0Mask | kSAI_Channel1Mask | kSAI_Channel4Mask
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* then in SAI_RxSetFormat/SAI_TxSetFormat function, channel/endChannel/channelNums will be calculated.
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* for the single channel usage, user can provide channel or channel mask only, such as,
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* channel = 0 or channelMask = kSAI_Channel0Mask.
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*/
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uint8_t channel; /*!< Transfer start channel */
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uint8_t channelMask; /*!< enabled channel mask value, reference _sai_channel_mask */
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uint8_t endChannel; /*!< end channel number */
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uint8_t channelNums; /*!< Total enabled channel numbers */
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sai_protocol_t protocol; /*!< Which audio protocol used */
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bool isFrameSyncCompact; /*!< True means Frame sync length is configurable according to bitWidth, false means frame
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sync length is 64 times of bit clock. */
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} sai_transfer_format_t;
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#if (defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR)) || \
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(defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER))
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/*! @brief master clock configurations */
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typedef struct _sai_master_clock
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{
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#if defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR)
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bool mclkOutputEnable; /*!< master clock output enable */
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#if !(defined(FSL_FEATURE_SAI_HAS_NO_MCR_MICS) && (FSL_FEATURE_SAI_HAS_NO_MCR_MICS))
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sai_mclk_source_t mclkSource; /*!< Master Clock source */
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#endif
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#endif
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#if (defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR)) || \
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(defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER))
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uint32_t mclkHz; /*!< target mclk frequency */
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uint32_t mclkSourceClkHz; /*!< mclk source frequency*/
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#endif
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} sai_master_clock_t;
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#endif
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/*! @brief sai fifo feature*/
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#if (defined(FSL_FEATURE_SAI_HAS_FIFO_FUNCTION_AFTER_ERROR) && FSL_FEATURE_SAI_HAS_FIFO_FUNCTION_AFTER_ERROR) || \
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(defined(FSL_FEATURE_SAI_HAS_FIFO_COMBINE_MODE) && FSL_FEATURE_SAI_HAS_FIFO_COMBINE_MODE) || \
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(defined(FSL_FEATURE_SAI_HAS_FIFO_PACKING) && FSL_FEATURE_SAI_HAS_FIFO_PACKING) || \
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(defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1))
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#define FSL_SAI_HAS_FIFO_EXTEND_FEATURE 1
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#else
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#define FSL_SAI_HAS_FIFO_EXTEND_FEATURE 0
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#endif
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#if FSL_SAI_HAS_FIFO_EXTEND_FEATURE
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/*! @brief sai fifo configurations */
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typedef struct _sai_fifo
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{
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#if defined(FSL_FEATURE_SAI_HAS_FIFO_FUNCTION_AFTER_ERROR) && FSL_FEATURE_SAI_HAS_FIFO_FUNCTION_AFTER_ERROR
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bool fifoContinueOneError; /*!< fifo continues when error occur */
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#endif
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#if defined(FSL_FEATURE_SAI_HAS_FIFO_COMBINE_MODE) && FSL_FEATURE_SAI_HAS_FIFO_COMBINE_MODE
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sai_fifo_combine_t fifoCombine; /*!< fifo combine mode */
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#endif
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#if defined(FSL_FEATURE_SAI_HAS_FIFO_PACKING) && FSL_FEATURE_SAI_HAS_FIFO_PACKING
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sai_fifo_packing_t fifoPacking; /*!< fifo packing mode */
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#endif
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#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1)
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uint8_t fifoWatermark; /*!< fifo watermark */
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#endif
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} sai_fifo_t;
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#endif
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/*! @brief sai bit clock configurations */
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typedef struct _sai_bit_clock
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{
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bool bclkSrcSwap; /*!< bit clock source swap */
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bool bclkInputDelay; /*!< bit clock actually used by the transmitter is delayed by the pad output delay,
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this has effect of decreasing the data input setup time, but increasing the data output valid
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time .*/
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sai_clock_polarity_t bclkPolarity; /*!< bit clock polarity */
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sai_bclk_source_t bclkSource; /*!< bit Clock source */
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} sai_bit_clock_t;
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/*! @brief sai frame sync configurations */
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typedef struct _sai_frame_sync
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{
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uint8_t frameSyncWidth; /*!< frame sync width in number of bit clocks */
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bool frameSyncEarly; /*!< TRUE is frame sync assert one bit before the first bit of frame
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FALSE is frame sync assert with the first bit of the frame */
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#if defined(FSL_FEATURE_SAI_HAS_FRAME_SYNC_ON_DEMAND) && FSL_FEATURE_SAI_HAS_FRAME_SYNC_ON_DEMAND
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bool frameSyncGenerateOnDemand; /*!< internal frame sync is generated when FIFO waring flag is clear */
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#endif
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sai_clock_polarity_t frameSyncPolarity; /*!< frame sync polarity */
|
|
|
|
} sai_frame_sync_t;
|
|
|
|
/*! @brief sai serial data configurations */
|
|
typedef struct _sai_serial_data
|
|
{
|
|
#if defined(FSL_FEATURE_SAI_HAS_CHANNEL_MODE) && FSL_FEATURE_SAI_HAS_CHANNEL_MODE
|
|
sai_data_pin_state_t dataMode; /*!< sai data pin state when slots masked or channel disabled */
|
|
#endif
|
|
|
|
sai_data_order_t dataOrder; /*!< configure whether the LSB or MSB is transmitted first */
|
|
uint8_t dataWord0Length; /*!< configure the number of bits in the first word in each frame */
|
|
uint8_t dataWordNLength; /*!< configure the number of bits in the each word in each frame, except the first word */
|
|
uint8_t dataWordLength; /*!< used to record the data length for dma transfer */
|
|
uint8_t
|
|
dataFirstBitShifted; /*!< Configure the bit index for the first bit transmitted for each word in the frame */
|
|
uint8_t dataWordNum; /*!< configure the number of words in each frame */
|
|
uint32_t dataMaskedWord; /*!< configure whether the transmit word is masked */
|
|
} sai_serial_data_t;
|
|
|
|
/*! @brief sai transceiver configurations */
|
|
typedef struct _sai_transceiver
|
|
{
|
|
sai_serial_data_t serialData; /*!< serial data configurations */
|
|
sai_frame_sync_t frameSync; /*!< ws configurations */
|
|
sai_bit_clock_t bitClock; /*!< bit clock configurations */
|
|
#if FSL_SAI_HAS_FIFO_EXTEND_FEATURE
|
|
sai_fifo_t fifo; /*!< fifo configurations */
|
|
#endif
|
|
sai_master_slave_t masterSlave; /*!< transceiver is master or slave */
|
|
|
|
sai_sync_mode_t syncMode; /*!< transceiver sync mode */
|
|
|
|
uint8_t startChannel; /*!< Transfer start channel */
|
|
uint8_t channelMask; /*!< enabled channel mask value, reference _sai_channel_mask */
|
|
uint8_t endChannel; /*!< end channel number */
|
|
uint8_t channelNums; /*!< Total enabled channel numbers */
|
|
|
|
} sai_transceiver_t;
|
|
|
|
/*! @brief SAI transfer structure */
|
|
typedef struct _sai_transfer
|
|
{
|
|
uint8_t *data; /*!< Data start address to transfer. */
|
|
size_t dataSize; /*!< Transfer size. */
|
|
} sai_transfer_t;
|
|
|
|
typedef struct _sai_handle sai_handle_t;
|
|
|
|
/*! @brief SAI transfer callback prototype */
|
|
typedef void (*sai_transfer_callback_t)(I2S_Type *base, sai_handle_t *handle, status_t status, void *userData);
|
|
|
|
/*! @brief SAI handle structure */
|
|
struct _sai_handle
|
|
{
|
|
I2S_Type *base; /*!< base address */
|
|
|
|
uint32_t state; /*!< Transfer status */
|
|
sai_transfer_callback_t callback; /*!< Callback function called at transfer event*/
|
|
void *userData; /*!< Callback parameter passed to callback function*/
|
|
uint8_t bitWidth; /*!< Bit width for transfer, 8/16/24/32 bits */
|
|
|
|
/* for the multi channel usage, user can provide channelMask Oonly, then sai driver will handle
|
|
* other parameter carefully, such as
|
|
* channelMask = kSAI_Channel0Mask | kSAI_Channel1Mask | kSAI_Channel4Mask
|
|
* then in SAI_RxSetFormat/SAI_TxSetFormat function, channel/endChannel/channelNums will be calculated.
|
|
* for the single channel usage, user can provide channel or channel mask only, such as,
|
|
* channel = 0 or channelMask = kSAI_Channel0Mask.
|
|
*/
|
|
uint8_t channel; /*!< Transfer start channel */
|
|
uint8_t channelMask; /*!< enabled channel mask value, refernece _sai_channel_mask */
|
|
uint8_t endChannel; /*!< end channel number */
|
|
uint8_t channelNums; /*!< Total enabled channel numbers */
|
|
|
|
sai_transfer_t saiQueue[SAI_XFER_QUEUE_SIZE]; /*!< Transfer queue storing queued transfer */
|
|
size_t transferSize[SAI_XFER_QUEUE_SIZE]; /*!< Data bytes need to transfer */
|
|
volatile uint8_t queueUser; /*!< Index for user to queue transfer */
|
|
volatile uint8_t queueDriver; /*!< Index for driver to get the transfer data and size */
|
|
#if defined(FSL_FEATURE_SAI_FIFO_COUNT) && (FSL_FEATURE_SAI_FIFO_COUNT > 1)
|
|
uint8_t watermark; /*!< Watermark value */
|
|
#endif
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* API
|
|
******************************************************************************/
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif /*_cplusplus*/
|
|
|
|
/*!
|
|
* @name Initialization and deinitialization
|
|
* @{
|
|
*/
|
|
|
|
/*!
|
|
* @brief Initializes the SAI Tx peripheral.
|
|
* @deprecated Do not use this function. It has been superceded by @ref SAI_Init
|
|
*
|
|
* Ungates the SAI clock, resets the module, and configures SAI Tx with a configuration structure.
|
|
* The configuration structure can be custom filled or set with default values by
|
|
* SAI_TxGetDefaultConfig().
|
|
*
|
|
* @note This API should be called at the beginning of the application to use
|
|
* the SAI driver. Otherwise, accessing the SAIM module can cause a hard fault
|
|
* because the clock is not enabled.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param config SAI configuration structure.
|
|
*/
|
|
void SAI_TxInit(I2S_Type *base, const sai_config_t *config);
|
|
|
|
/*!
|
|
* @brief Initializes the SAI Rx peripheral.
|
|
* @deprecated Do not use this function. It has been superceded by @ref SAI_Init
|
|
*
|
|
* Ungates the SAI clock, resets the module, and configures the SAI Rx with a configuration structure.
|
|
* The configuration structure can be custom filled or set with default values by
|
|
* SAI_RxGetDefaultConfig().
|
|
*
|
|
* @note This API should be called at the beginning of the application to use
|
|
* the SAI driver. Otherwise, accessing the SAI module can cause a hard fault
|
|
* because the clock is not enabled.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param config SAI configuration structure.
|
|
*/
|
|
void SAI_RxInit(I2S_Type *base, const sai_config_t *config);
|
|
|
|
/*!
|
|
* @brief Sets the SAI Tx configuration structure to default values.
|
|
* @deprecated Do not use this function. It has been superceded by
|
|
* @ref SAI_GetClassicI2SConfig, @ref SAI_GetLeftJustifiedConfig , @ref SAI_GetRightJustifiedConfig, @ref
|
|
SAI_GetDSPConfig, @ref SAI_GetTDMConfig
|
|
*
|
|
* This API initializes the configuration structure for use in SAI_TxConfig().
|
|
* The initialized structure can remain unchanged in SAI_TxConfig(), or it can be modified
|
|
* before calling SAI_TxConfig().
|
|
* This is an example.
|
|
@code
|
|
sai_config_t config;
|
|
SAI_TxGetDefaultConfig(&config);
|
|
@endcode
|
|
*
|
|
* @param config pointer to master configuration structure
|
|
*/
|
|
void SAI_TxGetDefaultConfig(sai_config_t *config);
|
|
|
|
/*!
|
|
* @brief Sets the SAI Rx configuration structure to default values.
|
|
* @deprecated Do not use this function. It has been superceded by
|
|
* @ref SAI_GetClassicI2SConfig, @ref SAI_GetLeftJustifiedConfig , @ref SAI_GetRightJustifiedConfig, @ref
|
|
SAI_GetDSPConfig, @ref SAI_GetTDMConfig
|
|
*
|
|
* This API initializes the configuration structure for use in SAI_RxConfig().
|
|
* The initialized structure can remain unchanged in SAI_RxConfig() or it can be modified
|
|
* before calling SAI_RxConfig().
|
|
* This is an example.
|
|
@code
|
|
sai_config_t config;
|
|
SAI_RxGetDefaultConfig(&config);
|
|
@endcode
|
|
*
|
|
* @param config pointer to master configuration structure
|
|
*/
|
|
void SAI_RxGetDefaultConfig(sai_config_t *config);
|
|
|
|
/*!
|
|
* @brief Initializes the SAI peripheral.
|
|
*
|
|
* This API gates the SAI clock. The SAI module can't operate unless SAI_Init is called to enable the clock.
|
|
*
|
|
* @param base SAI base pointer.
|
|
*/
|
|
void SAI_Init(I2S_Type *base);
|
|
|
|
/*!
|
|
* @brief De-initializes the SAI peripheral.
|
|
*
|
|
* This API gates the SAI clock. The SAI module can't operate unless SAI_TxInit
|
|
* or SAI_RxInit is called to enable the clock.
|
|
*
|
|
* @param base SAI base pointer.
|
|
*/
|
|
void SAI_Deinit(I2S_Type *base);
|
|
|
|
/*!
|
|
* @brief Resets the SAI Tx.
|
|
*
|
|
* This function enables the software reset and FIFO reset of SAI Tx. After reset, clear the reset bit.
|
|
*
|
|
* @param base SAI base pointer
|
|
*/
|
|
void SAI_TxReset(I2S_Type *base);
|
|
|
|
/*!
|
|
* @brief Resets the SAI Rx.
|
|
*
|
|
* This function enables the software reset and FIFO reset of SAI Rx. After reset, clear the reset bit.
|
|
*
|
|
* @param base SAI base pointer
|
|
*/
|
|
void SAI_RxReset(I2S_Type *base);
|
|
|
|
/*!
|
|
* @brief Enables/disables the SAI Tx.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param enable True means enable SAI Tx, false means disable.
|
|
*/
|
|
void SAI_TxEnable(I2S_Type *base, bool enable);
|
|
|
|
/*!
|
|
* @brief Enables/disables the SAI Rx.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param enable True means enable SAI Rx, false means disable.
|
|
*/
|
|
void SAI_RxEnable(I2S_Type *base, bool enable);
|
|
|
|
/*!
|
|
* @brief Set Rx bit clock direction.
|
|
*
|
|
* Select bit clock direction, master or slave.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave reference sai_master_slave_t.
|
|
*/
|
|
static inline void SAI_TxSetBitClockDirection(I2S_Type *base, sai_master_slave_t masterSlave)
|
|
{
|
|
if (masterSlave == kSAI_Master)
|
|
{
|
|
base->TCR2 |= I2S_TCR2_BCD_MASK;
|
|
}
|
|
else
|
|
{
|
|
base->TCR2 &= ~I2S_TCR2_BCD_MASK;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Set Rx bit clock direction.
|
|
*
|
|
* Select bit clock direction, master or slave.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave reference sai_master_slave_t.
|
|
*/
|
|
static inline void SAI_RxSetBitClockDirection(I2S_Type *base, sai_master_slave_t masterSlave)
|
|
{
|
|
if (masterSlave == kSAI_Master)
|
|
{
|
|
base->RCR2 |= I2S_RCR2_BCD_MASK;
|
|
}
|
|
else
|
|
{
|
|
base->RCR2 &= ~I2S_RCR2_BCD_MASK;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Set Rx frame sync direction.
|
|
*
|
|
* Select frame sync direction, master or slave.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave reference sai_master_slave_t.
|
|
*/
|
|
static inline void SAI_RxSetFrameSyncDirection(I2S_Type *base, sai_master_slave_t masterSlave)
|
|
{
|
|
if (masterSlave == kSAI_Master)
|
|
{
|
|
base->RCR4 |= I2S_RCR4_FSD_MASK;
|
|
}
|
|
else
|
|
{
|
|
base->RCR4 &= ~I2S_RCR4_FSD_MASK;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Set Tx frame sync direction.
|
|
*
|
|
* Select frame sync direction, master or slave.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave reference sai_master_slave_t.
|
|
*/
|
|
static inline void SAI_TxSetFrameSyncDirection(I2S_Type *base, sai_master_slave_t masterSlave)
|
|
{
|
|
if (masterSlave == kSAI_Master)
|
|
{
|
|
base->TCR4 |= I2S_TCR4_FSD_MASK;
|
|
}
|
|
else
|
|
{
|
|
base->TCR4 &= ~I2S_TCR4_FSD_MASK;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Transmitter bit clock rate configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param sourceClockHz Bit clock source frequency.
|
|
* @param sampleRate Audio data sample rate.
|
|
* @param bitWidth Audio data bitWidth.
|
|
* @param channelNumbers Audio channel numbers.
|
|
*/
|
|
void SAI_TxSetBitClockRate(
|
|
I2S_Type *base, uint32_t sourceClockHz, uint32_t sampleRate, uint32_t bitWidth, uint32_t channelNumbers);
|
|
|
|
/*!
|
|
* @brief Receiver bit clock rate configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param sourceClockHz Bit clock source frequency.
|
|
* @param sampleRate Audio data sample rate.
|
|
* @param bitWidth Audio data bitWidth.
|
|
* @param channelNumbers Audio channel numbers.
|
|
*/
|
|
void SAI_RxSetBitClockRate(
|
|
I2S_Type *base, uint32_t sourceClockHz, uint32_t sampleRate, uint32_t bitWidth, uint32_t channelNumbers);
|
|
|
|
/*!
|
|
* @brief Transmitter Bit clock configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave master or slave.
|
|
* @param config bit clock other configurations, can be NULL in slave mode.
|
|
*/
|
|
void SAI_TxSetBitclockConfig(I2S_Type *base, sai_master_slave_t masterSlave, sai_bit_clock_t *config);
|
|
|
|
/*!
|
|
* @brief Receiver Bit clock configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave master or slave.
|
|
* @param config bit clock other configurations, can be NULL in slave mode.
|
|
*/
|
|
void SAI_RxSetBitclockConfig(I2S_Type *base, sai_master_slave_t masterSlave, sai_bit_clock_t *config);
|
|
|
|
#if (defined(FSL_FEATURE_SAI_HAS_MCR) && (FSL_FEATURE_SAI_HAS_MCR)) || \
|
|
(defined(FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER) && (FSL_FEATURE_SAI_HAS_MCLKDIV_REGISTER))
|
|
/*!
|
|
* @brief Master clock configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config master clock configurations.
|
|
*/
|
|
void SAI_SetMasterClockConfig(I2S_Type *base, sai_master_clock_t *config);
|
|
#endif
|
|
|
|
#if FSL_SAI_HAS_FIFO_EXTEND_FEATURE
|
|
/*!
|
|
* @brief SAI transmitter fifo configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config fifo configurations.
|
|
*/
|
|
void SAI_TxSetFifoConfig(I2S_Type *base, sai_fifo_t *config);
|
|
|
|
/*!
|
|
* @brief SAI receiver fifo configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config fifo configurations.
|
|
*/
|
|
void SAI_RxSetFifoConfig(I2S_Type *base, sai_fifo_t *config);
|
|
#endif
|
|
|
|
/*!
|
|
* @brief SAI transmitter Frame sync configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave master or slave.
|
|
* @param config frame sync configurations, can be NULL in slave mode.
|
|
*/
|
|
void SAI_TxSetFrameSyncConfig(I2S_Type *base, sai_master_slave_t masterSlave, sai_frame_sync_t *config);
|
|
|
|
/*!
|
|
* @brief SAI receiver Frame sync configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param masterSlave master or slave.
|
|
* @param config frame sync configurations, can be NULL in slave mode.
|
|
*/
|
|
void SAI_RxSetFrameSyncConfig(I2S_Type *base, sai_master_slave_t masterSlave, sai_frame_sync_t *config);
|
|
|
|
/*!
|
|
* @brief SAI transmitter Serial data configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config serial data configurations.
|
|
*/
|
|
void SAI_TxSetSerialDataConfig(I2S_Type *base, sai_serial_data_t *config);
|
|
|
|
/*!
|
|
* @brief SAI receiver Serial data configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config serial data configurations.
|
|
*/
|
|
void SAI_RxSetSerialDataConfig(I2S_Type *base, sai_serial_data_t *config);
|
|
|
|
/*!
|
|
* @brief SAI transmitter configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config transmitter configurations.
|
|
*/
|
|
void SAI_TxSetConfig(I2S_Type *base, sai_transceiver_t *config);
|
|
|
|
/*!
|
|
* @brief SAI receiver configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param config receiver configurations.
|
|
*/
|
|
void SAI_RxSetConfig(I2S_Type *base, sai_transceiver_t *config);
|
|
|
|
/*!
|
|
* @brief Get classic I2S mode configurations.
|
|
*
|
|
* @param config transceiver configurations.
|
|
* @param bitWidth audio data bitWidth.
|
|
* @param mode audio data channel.
|
|
* @param saiChannelMask mask value of the channel to be enable.
|
|
*/
|
|
void SAI_GetClassicI2SConfig(sai_transceiver_t *config,
|
|
sai_word_width_t bitWidth,
|
|
sai_mono_stereo_t mode,
|
|
uint32_t saiChannelMask);
|
|
|
|
/*!
|
|
* @brief Get left justified mode configurations.
|
|
*
|
|
* @param config transceiver configurations.
|
|
* @param bitWidth audio data bitWidth.
|
|
* @param mode audio data channel.
|
|
* @param saiChannelMask mask value of the channel to be enable.
|
|
*/
|
|
void SAI_GetLeftJustifiedConfig(sai_transceiver_t *config,
|
|
sai_word_width_t bitWidth,
|
|
sai_mono_stereo_t mode,
|
|
uint32_t saiChannelMask);
|
|
|
|
/*!
|
|
* @brief Get right justified mode configurations.
|
|
*
|
|
* @param config transceiver configurations.
|
|
* @param bitWidth audio data bitWidth.
|
|
* @param mode audio data channel.
|
|
* @param saiChannelMask mask value of the channel to be enable.
|
|
*/
|
|
void SAI_GetRightJustifiedConfig(sai_transceiver_t *config,
|
|
sai_word_width_t bitWidth,
|
|
sai_mono_stereo_t mode,
|
|
uint32_t saiChannelMask);
|
|
|
|
/*!
|
|
* @brief Get TDM mode configurations.
|
|
*
|
|
* @param config transceiver configurations.
|
|
* @param frameSyncWidth length of frame sync.
|
|
* @param bitWidth audio data word width.
|
|
* @param dataWordNum word number in one frame.
|
|
* @param saiChannelMask mask value of the channel to be enable.
|
|
*/
|
|
void SAI_GetTDMConfig(sai_transceiver_t *config,
|
|
sai_frame_sync_len_t frameSyncWidth,
|
|
sai_word_width_t bitWidth,
|
|
uint32_t dataWordNum,
|
|
uint32_t saiChannelMask);
|
|
|
|
/*!
|
|
* @brief Get DSP mode configurations.
|
|
*
|
|
* @note DSP mode is also called PCM mode which support MODE A and MODE B,
|
|
* DSP/PCM MODE A configuration flow. RX is similiar but uses SAI_RxSetConfig instead of SAI_TxSetConfig:
|
|
* @code
|
|
* SAI_GetDSPConfig(config, kSAI_FrameSyncLenOneBitClk, bitWidth, kSAI_Stereo, channelMask)
|
|
* config->frameSync.frameSyncEarly = true;
|
|
* SAI_TxSetConfig(base, config)
|
|
* @endcode
|
|
*
|
|
* DSP/PCM MODE B configuration flow for TX. RX is similiar but uses SAI_RxSetConfig instead of SAI_TxSetConfig:
|
|
* @code
|
|
* SAI_GetDSPConfig(config, kSAI_FrameSyncLenOneBitClk, bitWidth, kSAI_Stereo, channelMask)
|
|
* SAI_TxSetConfig(base, config)
|
|
* @endcode
|
|
*
|
|
* @param config transceiver configurations.
|
|
* @param frameSyncWidth length of frame sync.
|
|
* @param bitWidth audio data bitWidth.
|
|
* @param mode audio data channel.
|
|
* @param saiChannelMask mask value of the channel to enable.
|
|
*/
|
|
void SAI_GetDSPConfig(sai_transceiver_t *config,
|
|
sai_frame_sync_len_t frameSyncWidth,
|
|
sai_word_width_t bitWidth,
|
|
sai_mono_stereo_t mode,
|
|
uint32_t saiChannelMask);
|
|
/*! @} */
|
|
|
|
/*!
|
|
* @name Status
|
|
* @{
|
|
*/
|
|
|
|
/*!
|
|
* @brief Gets the SAI Tx status flag state.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @return SAI Tx status flag value. Use the Status Mask to get the status value needed.
|
|
*/
|
|
static inline uint32_t SAI_TxGetStatusFlag(I2S_Type *base)
|
|
{
|
|
return base->TCSR;
|
|
}
|
|
|
|
/*!
|
|
* @brief Clears the SAI Tx status flag state.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask State mask. It can be a combination of the following source if defined:
|
|
* @arg kSAI_WordStartFlag
|
|
* @arg kSAI_SyncErrorFlag
|
|
* @arg kSAI_FIFOErrorFlag
|
|
*/
|
|
static inline void SAI_TxClearStatusFlags(I2S_Type *base, uint32_t mask)
|
|
{
|
|
base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | mask);
|
|
}
|
|
|
|
/*!
|
|
* @brief Gets the SAI Tx status flag state.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @return SAI Rx status flag value. Use the Status Mask to get the status value needed.
|
|
*/
|
|
static inline uint32_t SAI_RxGetStatusFlag(I2S_Type *base)
|
|
{
|
|
return base->RCSR;
|
|
}
|
|
|
|
/*!
|
|
* @brief Clears the SAI Rx status flag state.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask State mask. It can be a combination of the following sources if defined.
|
|
* @arg kSAI_WordStartFlag
|
|
* @arg kSAI_SyncErrorFlag
|
|
* @arg kSAI_FIFOErrorFlag
|
|
*/
|
|
static inline void SAI_RxClearStatusFlags(I2S_Type *base, uint32_t mask)
|
|
{
|
|
base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | mask);
|
|
}
|
|
|
|
/*!
|
|
* @brief Do software reset or FIFO reset .
|
|
*
|
|
* FIFO reset means clear all the data in the FIFO, and make the FIFO pointer both to 0.
|
|
* Software reset means clear the Tx internal logic, including the bit clock, frame count etc. But software
|
|
* reset will not clear any configuration registers like TCR1~TCR5.
|
|
* This function will also clear all the error flags such as FIFO error, sync error etc.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param type Reset type, FIFO reset or software reset
|
|
*/
|
|
void SAI_TxSoftwareReset(I2S_Type *base, sai_reset_type_t type);
|
|
|
|
/*!
|
|
* @brief Do software reset or FIFO reset .
|
|
*
|
|
* FIFO reset means clear all the data in the FIFO, and make the FIFO pointer both to 0.
|
|
* Software reset means clear the Rx internal logic, including the bit clock, frame count etc. But software
|
|
* reset will not clear any configuration registers like RCR1~RCR5.
|
|
* This function will also clear all the error flags such as FIFO error, sync error etc.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param type Reset type, FIFO reset or software reset
|
|
*/
|
|
void SAI_RxSoftwareReset(I2S_Type *base, sai_reset_type_t type);
|
|
|
|
/*!
|
|
* @brief Set the Tx channel FIFO enable mask.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask Channel enable mask, 0 means all channel FIFO disabled, 1 means channel 0 enabled,
|
|
* 3 means both channel 0 and channel 1 enabled.
|
|
*/
|
|
void SAI_TxSetChannelFIFOMask(I2S_Type *base, uint8_t mask);
|
|
|
|
/*!
|
|
* @brief Set the Rx channel FIFO enable mask.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask Channel enable mask, 0 means all channel FIFO disabled, 1 means channel 0 enabled,
|
|
* 3 means both channel 0 and channel 1 enabled.
|
|
*/
|
|
void SAI_RxSetChannelFIFOMask(I2S_Type *base, uint8_t mask);
|
|
|
|
/*!
|
|
* @brief Set the Tx data order.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param order Data order MSB or LSB
|
|
*/
|
|
void SAI_TxSetDataOrder(I2S_Type *base, sai_data_order_t order);
|
|
|
|
/*!
|
|
* @brief Set the Rx data order.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param order Data order MSB or LSB
|
|
*/
|
|
void SAI_RxSetDataOrder(I2S_Type *base, sai_data_order_t order);
|
|
|
|
/*!
|
|
* @brief Set the Tx data order.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param polarity
|
|
*/
|
|
void SAI_TxSetBitClockPolarity(I2S_Type *base, sai_clock_polarity_t polarity);
|
|
|
|
/*!
|
|
* @brief Set the Rx data order.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param polarity
|
|
*/
|
|
void SAI_RxSetBitClockPolarity(I2S_Type *base, sai_clock_polarity_t polarity);
|
|
|
|
/*!
|
|
* @brief Set the Tx data order.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param polarity
|
|
*/
|
|
void SAI_TxSetFrameSyncPolarity(I2S_Type *base, sai_clock_polarity_t polarity);
|
|
|
|
/*!
|
|
* @brief Set the Rx data order.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param polarity
|
|
*/
|
|
void SAI_RxSetFrameSyncPolarity(I2S_Type *base, sai_clock_polarity_t polarity);
|
|
|
|
#if defined(FSL_FEATURE_SAI_HAS_FIFO_PACKING) && FSL_FEATURE_SAI_HAS_FIFO_PACKING
|
|
/*!
|
|
* @brief Set Tx FIFO packing feature.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param pack FIFO pack type. It is element of sai_fifo_packing_t.
|
|
*/
|
|
void SAI_TxSetFIFOPacking(I2S_Type *base, sai_fifo_packing_t pack);
|
|
|
|
/*!
|
|
* @brief Set Rx FIFO packing feature.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param pack FIFO pack type. It is element of sai_fifo_packing_t.
|
|
*/
|
|
void SAI_RxSetFIFOPacking(I2S_Type *base, sai_fifo_packing_t pack);
|
|
#endif /* FSL_FEATURE_SAI_HAS_FIFO_PACKING */
|
|
|
|
#if defined(FSL_FEATURE_SAI_HAS_FIFO_FUNCTION_AFTER_ERROR) && FSL_FEATURE_SAI_HAS_FIFO_FUNCTION_AFTER_ERROR
|
|
/*!
|
|
* @brief Set Tx FIFO error continue.
|
|
*
|
|
* FIFO error continue mode means SAI will keep running while FIFO error occurred. If this feature
|
|
* not enabled, SAI will hang and users need to clear FEF flag in TCSR register.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param isEnabled Is FIFO error continue enabled, true means enable, false means disable.
|
|
*/
|
|
static inline void SAI_TxSetFIFOErrorContinue(I2S_Type *base, bool isEnabled)
|
|
{
|
|
if (isEnabled)
|
|
{
|
|
base->TCR4 |= I2S_TCR4_FCONT_MASK;
|
|
}
|
|
else
|
|
{
|
|
base->TCR4 &= ~I2S_TCR4_FCONT_MASK;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Set Rx FIFO error continue.
|
|
*
|
|
* FIFO error continue mode means SAI will keep running while FIFO error occurred. If this feature
|
|
* not enabled, SAI will hang and users need to clear FEF flag in RCSR register.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param isEnabled Is FIFO error continue enabled, true means enable, false means disable.
|
|
*/
|
|
static inline void SAI_RxSetFIFOErrorContinue(I2S_Type *base, bool isEnabled)
|
|
{
|
|
if (isEnabled)
|
|
{
|
|
base->RCR4 |= I2S_RCR4_FCONT_MASK;
|
|
}
|
|
else
|
|
{
|
|
base->RCR4 &= ~I2S_RCR4_FCONT_MASK;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*! @} */
|
|
|
|
/*!
|
|
* @name Interrupts
|
|
* @{
|
|
*/
|
|
|
|
/*!
|
|
* @brief Enables the SAI Tx interrupt requests.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask interrupt source
|
|
* The parameter can be a combination of the following sources if defined.
|
|
* @arg kSAI_WordStartInterruptEnable
|
|
* @arg kSAI_SyncErrorInterruptEnable
|
|
* @arg kSAI_FIFOWarningInterruptEnable
|
|
* @arg kSAI_FIFORequestInterruptEnable
|
|
* @arg kSAI_FIFOErrorInterruptEnable
|
|
*/
|
|
static inline void SAI_TxEnableInterrupts(I2S_Type *base, uint32_t mask)
|
|
{
|
|
base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | mask);
|
|
}
|
|
|
|
/*!
|
|
* @brief Enables the SAI Rx interrupt requests.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask interrupt source
|
|
* The parameter can be a combination of the following sources if defined.
|
|
* @arg kSAI_WordStartInterruptEnable
|
|
* @arg kSAI_SyncErrorInterruptEnable
|
|
* @arg kSAI_FIFOWarningInterruptEnable
|
|
* @arg kSAI_FIFORequestInterruptEnable
|
|
* @arg kSAI_FIFOErrorInterruptEnable
|
|
*/
|
|
static inline void SAI_RxEnableInterrupts(I2S_Type *base, uint32_t mask)
|
|
{
|
|
base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | mask);
|
|
}
|
|
|
|
/*!
|
|
* @brief Disables the SAI Tx interrupt requests.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask interrupt source
|
|
* The parameter can be a combination of the following sources if defined.
|
|
* @arg kSAI_WordStartInterruptEnable
|
|
* @arg kSAI_SyncErrorInterruptEnable
|
|
* @arg kSAI_FIFOWarningInterruptEnable
|
|
* @arg kSAI_FIFORequestInterruptEnable
|
|
* @arg kSAI_FIFOErrorInterruptEnable
|
|
*/
|
|
static inline void SAI_TxDisableInterrupts(I2S_Type *base, uint32_t mask)
|
|
{
|
|
base->TCSR = ((base->TCSR & 0xFFE3FFFFU) & (~mask));
|
|
}
|
|
|
|
/*!
|
|
* @brief Disables the SAI Rx interrupt requests.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param mask interrupt source
|
|
* The parameter can be a combination of the following sources if defined.
|
|
* @arg kSAI_WordStartInterruptEnable
|
|
* @arg kSAI_SyncErrorInterruptEnable
|
|
* @arg kSAI_FIFOWarningInterruptEnable
|
|
* @arg kSAI_FIFORequestInterruptEnable
|
|
* @arg kSAI_FIFOErrorInterruptEnable
|
|
*/
|
|
static inline void SAI_RxDisableInterrupts(I2S_Type *base, uint32_t mask)
|
|
{
|
|
base->RCSR = ((base->RCSR & 0xFFE3FFFFU) & (~mask));
|
|
}
|
|
|
|
/*! @} */
|
|
|
|
/*!
|
|
* @name DMA Control
|
|
* @{
|
|
*/
|
|
|
|
/*!
|
|
* @brief Enables/disables the SAI Tx DMA requests.
|
|
* @param base SAI base pointer
|
|
* @param mask DMA source
|
|
* The parameter can be combination of the following sources if defined.
|
|
* @arg kSAI_FIFOWarningDMAEnable
|
|
* @arg kSAI_FIFORequestDMAEnable
|
|
* @param enable True means enable DMA, false means disable DMA.
|
|
*/
|
|
static inline void SAI_TxEnableDMA(I2S_Type *base, uint32_t mask, bool enable)
|
|
{
|
|
if (enable)
|
|
{
|
|
base->TCSR = ((base->TCSR & 0xFFE3FFFFU) | mask);
|
|
}
|
|
else
|
|
{
|
|
base->TCSR = ((base->TCSR & 0xFFE3FFFFU) & (~mask));
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Enables/disables the SAI Rx DMA requests.
|
|
* @param base SAI base pointer
|
|
* @param mask DMA source
|
|
* The parameter can be a combination of the following sources if defined.
|
|
* @arg kSAI_FIFOWarningDMAEnable
|
|
* @arg kSAI_FIFORequestDMAEnable
|
|
* @param enable True means enable DMA, false means disable DMA.
|
|
*/
|
|
static inline void SAI_RxEnableDMA(I2S_Type *base, uint32_t mask, bool enable)
|
|
{
|
|
if (enable)
|
|
{
|
|
base->RCSR = ((base->RCSR & 0xFFE3FFFFU) | mask);
|
|
}
|
|
else
|
|
{
|
|
base->RCSR = ((base->RCSR & 0xFFE3FFFFU) & (~mask));
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* @brief Gets the SAI Tx data register address.
|
|
*
|
|
* This API is used to provide a transfer address for the SAI DMA transfer configuration.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Which data channel used.
|
|
* @return data register address.
|
|
*/
|
|
static inline uint32_t SAI_TxGetDataRegisterAddress(I2S_Type *base, uint32_t channel)
|
|
{
|
|
return (uint32_t)(&(base->TDR)[channel]);
|
|
}
|
|
|
|
/*!
|
|
* @brief Gets the SAI Rx data register address.
|
|
*
|
|
* This API is used to provide a transfer address for the SAI DMA transfer configuration.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Which data channel used.
|
|
* @return data register address.
|
|
*/
|
|
static inline uint32_t SAI_RxGetDataRegisterAddress(I2S_Type *base, uint32_t channel)
|
|
{
|
|
return (uint32_t)(&(base->RDR)[channel]);
|
|
}
|
|
|
|
/*! @} */
|
|
|
|
/*!
|
|
* @name Bus Operations
|
|
* @{
|
|
*/
|
|
|
|
/*!
|
|
* @brief Configures the SAI Tx audio format.
|
|
* @deprecated Do not use this function. It has been superceded by @ref SAI_TxSetConfig
|
|
*
|
|
* The audio format can be changed at run-time. This function configures the sample rate and audio data
|
|
* format to be transferred.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param format Pointer to the SAI audio data format structure.
|
|
* @param mclkSourceClockHz SAI master clock source frequency in Hz.
|
|
* @param bclkSourceClockHz SAI bit clock source frequency in Hz. If the bit clock source is a master
|
|
* clock, this value should equal the masterClockHz.
|
|
*/
|
|
void SAI_TxSetFormat(I2S_Type *base,
|
|
sai_transfer_format_t *format,
|
|
uint32_t mclkSourceClockHz,
|
|
uint32_t bclkSourceClockHz);
|
|
|
|
/*!
|
|
* @brief Configures the SAI Rx audio format.
|
|
* @deprecated Do not use this function. It has been superceded by @ref SAI_RxSetConfig
|
|
*
|
|
* The audio format can be changed at run-time. This function configures the sample rate and audio data
|
|
* format to be transferred.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param format Pointer to the SAI audio data format structure.
|
|
* @param mclkSourceClockHz SAI master clock source frequency in Hz.
|
|
* @param bclkSourceClockHz SAI bit clock source frequency in Hz. If the bit clock source is a master
|
|
* clock, this value should equal the masterClockHz.
|
|
*/
|
|
void SAI_RxSetFormat(I2S_Type *base,
|
|
sai_transfer_format_t *format,
|
|
uint32_t mclkSourceClockHz,
|
|
uint32_t bclkSourceClockHz);
|
|
|
|
/*!
|
|
* @brief Sends data using a blocking method.
|
|
*
|
|
* @note This function blocks by polling until data is ready to be sent.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Data channel used.
|
|
* @param bitWidth How many bits in an audio word; usually 8/16/24/32 bits.
|
|
* @param buffer Pointer to the data to be written.
|
|
* @param size Bytes to be written.
|
|
*/
|
|
void SAI_WriteBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size);
|
|
|
|
/*!
|
|
* @brief Sends data to multi channel using a blocking method.
|
|
*
|
|
* @note This function blocks by polling until data is ready to be sent.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Data channel used.
|
|
* @param channelMask channel mask.
|
|
* @param bitWidth How many bits in an audio word; usually 8/16/24/32 bits.
|
|
* @param buffer Pointer to the data to be written.
|
|
* @param size Bytes to be written.
|
|
*/
|
|
void SAI_WriteMultiChannelBlocking(
|
|
I2S_Type *base, uint32_t channel, uint32_t channelMask, uint32_t bitWidth, uint8_t *buffer, uint32_t size);
|
|
|
|
/*!
|
|
* @brief Writes data into SAI FIFO.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Data channel used.
|
|
* @param data Data needs to be written.
|
|
*/
|
|
static inline void SAI_WriteData(I2S_Type *base, uint32_t channel, uint32_t data)
|
|
{
|
|
base->TDR[channel] = data;
|
|
}
|
|
|
|
/*!
|
|
* @brief Receives data using a blocking method.
|
|
*
|
|
* @note This function blocks by polling until data is ready to be sent.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Data channel used.
|
|
* @param bitWidth How many bits in an audio word; usually 8/16/24/32 bits.
|
|
* @param buffer Pointer to the data to be read.
|
|
* @param size Bytes to be read.
|
|
*/
|
|
void SAI_ReadBlocking(I2S_Type *base, uint32_t channel, uint32_t bitWidth, uint8_t *buffer, uint32_t size);
|
|
|
|
/*!
|
|
* @brief Receives multi channel data using a blocking method.
|
|
*
|
|
* @note This function blocks by polling until data is ready to be sent.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Data channel used.
|
|
* @param channelMask channel mask.
|
|
* @param bitWidth How many bits in an audio word; usually 8/16/24/32 bits.
|
|
* @param buffer Pointer to the data to be read.
|
|
* @param size Bytes to be read.
|
|
*/
|
|
void SAI_ReadMultiChannelBlocking(
|
|
I2S_Type *base, uint32_t channel, uint32_t channelMask, uint32_t bitWidth, uint8_t *buffer, uint32_t size);
|
|
|
|
/*!
|
|
* @brief Reads data from the SAI FIFO.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param channel Data channel used.
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* @return Data in SAI FIFO.
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|
*/
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static inline uint32_t SAI_ReadData(I2S_Type *base, uint32_t channel)
|
|
{
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return base->RDR[channel];
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|
}
|
|
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|
/*! @} */
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|
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|
/*!
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|
* @name Transactional
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|
* @{
|
|
*/
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|
|
|
/*!
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|
* @brief Initializes the SAI Tx handle.
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|
*
|
|
* This function initializes the Tx handle for the SAI Tx transactional APIs. Call
|
|
* this function once to get the handle initialized.
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|
*
|
|
* @param base SAI base pointer
|
|
* @param handle SAI handle pointer.
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|
* @param callback Pointer to the user callback function.
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|
* @param userData User parameter passed to the callback function
|
|
*/
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|
void SAI_TransferTxCreateHandle(I2S_Type *base, sai_handle_t *handle, sai_transfer_callback_t callback, void *userData);
|
|
|
|
/*!
|
|
* @brief Initializes the SAI Rx handle.
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|
*
|
|
* This function initializes the Rx handle for the SAI Rx transactional APIs. Call
|
|
* this function once to get the handle initialized.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI handle pointer.
|
|
* @param callback Pointer to the user callback function.
|
|
* @param userData User parameter passed to the callback function.
|
|
*/
|
|
void SAI_TransferRxCreateHandle(I2S_Type *base, sai_handle_t *handle, sai_transfer_callback_t callback, void *userData);
|
|
|
|
/*!
|
|
* @brief SAI transmitter transfer configurations.
|
|
*
|
|
* This function initializes the Tx, include bit clock, frame sync, master clock, serial data and fifo
|
|
* configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI handle pointer.
|
|
* @param config tranmitter configurations.
|
|
*/
|
|
void SAI_TransferTxSetConfig(I2S_Type *base, sai_handle_t *handle, sai_transceiver_t *config);
|
|
|
|
/*!
|
|
* @brief SAI receiver transfer configurations.
|
|
*
|
|
* This function initializes the Rx, include bit clock, frame sync, master clock, serial data and fifo
|
|
* configurations.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI handle pointer.
|
|
* @param config receiver configurations.
|
|
*/
|
|
void SAI_TransferRxSetConfig(I2S_Type *base, sai_handle_t *handle, sai_transceiver_t *config);
|
|
|
|
/*!
|
|
* @brief Configures the SAI Tx audio format.
|
|
* @deprecated Do not use this function. It has been superceded by @ref SAI_TransferTxSetConfig
|
|
*
|
|
* The audio format can be changed at run-time. This function configures the sample rate and audio data
|
|
* format to be transferred.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI handle pointer.
|
|
* @param format Pointer to the 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 a master
|
|
* clock, this value should equal the masterClockHz in format.
|
|
* @return Status of this function. Return value is the status_t.
|
|
*/
|
|
status_t SAI_TransferTxSetFormat(I2S_Type *base,
|
|
sai_handle_t *handle,
|
|
sai_transfer_format_t *format,
|
|
uint32_t mclkSourceClockHz,
|
|
uint32_t bclkSourceClockHz);
|
|
|
|
/*!
|
|
* @brief Configures the SAI Rx audio format.
|
|
* @deprecated Do not use this function. It has been superceded by @ref SAI_TransferRxSetConfig
|
|
*
|
|
* The audio format can be changed at run-time. This function configures the sample rate and audio data
|
|
* format to be transferred.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI handle pointer.
|
|
* @param format Pointer to the 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 a master
|
|
* clock, this value should equal the masterClockHz in format.
|
|
* @return Status of this function. Return value is one of status_t.
|
|
*/
|
|
status_t SAI_TransferRxSetFormat(I2S_Type *base,
|
|
sai_handle_t *handle,
|
|
sai_transfer_format_t *format,
|
|
uint32_t mclkSourceClockHz,
|
|
uint32_t bclkSourceClockHz);
|
|
|
|
/*!
|
|
* @brief Performs an interrupt non-blocking send transfer on SAI.
|
|
*
|
|
* @note This API returns immediately after the transfer initiates.
|
|
* Call the SAI_TxGetTransferStatusIRQ to poll the transfer status and check whether
|
|
* the transfer is finished. If the return status is not kStatus_SAI_Busy, the transfer
|
|
* is finished.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle Pointer to the sai_handle_t structure which stores the transfer state.
|
|
* @param xfer Pointer to the sai_transfer_t structure.
|
|
* @retval kStatus_Success Successfully started the data receive.
|
|
* @retval kStatus_SAI_TxBusy Previous receive still not finished.
|
|
* @retval kStatus_InvalidArgument The input parameter is invalid.
|
|
*/
|
|
status_t SAI_TransferSendNonBlocking(I2S_Type *base, sai_handle_t *handle, sai_transfer_t *xfer);
|
|
|
|
/*!
|
|
* @brief Performs an interrupt non-blocking receive transfer on SAI.
|
|
*
|
|
* @note This API returns immediately after the transfer initiates.
|
|
* Call the SAI_RxGetTransferStatusIRQ to poll the transfer status and check whether
|
|
* the transfer is finished. If the return status is not kStatus_SAI_Busy, the transfer
|
|
* is finished.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param handle Pointer to the sai_handle_t structure which stores the transfer state.
|
|
* @param xfer Pointer to the sai_transfer_t structure.
|
|
* @retval kStatus_Success Successfully started the data receive.
|
|
* @retval kStatus_SAI_RxBusy Previous receive still not finished.
|
|
* @retval kStatus_InvalidArgument The input parameter is invalid.
|
|
*/
|
|
status_t SAI_TransferReceiveNonBlocking(I2S_Type *base, sai_handle_t *handle, sai_transfer_t *xfer);
|
|
|
|
/*!
|
|
* @brief Gets a set byte count.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle Pointer to the sai_handle_t structure which stores the transfer state.
|
|
* @param count Bytes count sent.
|
|
* @retval kStatus_Success Succeed get the transfer count.
|
|
* @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress.
|
|
*/
|
|
status_t SAI_TransferGetSendCount(I2S_Type *base, sai_handle_t *handle, size_t *count);
|
|
|
|
/*!
|
|
* @brief Gets a received byte count.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle Pointer to the sai_handle_t structure which stores the transfer state.
|
|
* @param count Bytes count received.
|
|
* @retval kStatus_Success Succeed get the transfer count.
|
|
* @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress.
|
|
*/
|
|
status_t SAI_TransferGetReceiveCount(I2S_Type *base, sai_handle_t *handle, size_t *count);
|
|
|
|
/*!
|
|
* @brief Aborts the current send.
|
|
*
|
|
* @note This API can be called any time when an interrupt non-blocking transfer initiates
|
|
* to abort the transfer early.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle Pointer to the sai_handle_t structure which stores the transfer state.
|
|
*/
|
|
void SAI_TransferAbortSend(I2S_Type *base, sai_handle_t *handle);
|
|
|
|
/*!
|
|
* @brief Aborts the current IRQ receive.
|
|
*
|
|
* @note This API can be called when an interrupt non-blocking transfer initiates
|
|
* to abort the transfer early.
|
|
*
|
|
* @param base SAI base pointer
|
|
* @param handle Pointer to the sai_handle_t structure which stores the transfer state.
|
|
*/
|
|
void SAI_TransferAbortReceive(I2S_Type *base, sai_handle_t *handle);
|
|
|
|
/*!
|
|
* @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_TransferAbortSend.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI eDMA handle pointer.
|
|
*/
|
|
void SAI_TransferTerminateSend(I2S_Type *base, sai_handle_t *handle);
|
|
|
|
/*!
|
|
* @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_TransferAbortReceive.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle SAI eDMA handle pointer.
|
|
*/
|
|
void SAI_TransferTerminateReceive(I2S_Type *base, sai_handle_t *handle);
|
|
|
|
/*!
|
|
* @brief Tx interrupt handler.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle Pointer to the sai_handle_t structure.
|
|
*/
|
|
void SAI_TransferTxHandleIRQ(I2S_Type *base, sai_handle_t *handle);
|
|
|
|
/*!
|
|
* @brief Tx interrupt handler.
|
|
*
|
|
* @param base SAI base pointer.
|
|
* @param handle Pointer to the sai_handle_t structure.
|
|
*/
|
|
void SAI_TransferRxHandleIRQ(I2S_Type *base, sai_handle_t *handle);
|
|
|
|
/*! @} */
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif /*_cplusplus*/
|
|
|
|
/*! @} */
|
|
|
|
#endif /* _FSL_SAI_H_ */
|