Diff: TARGET_K82F/TOOLCHAIN_ARM_STD/fsl_flexio_i2s.h

Revision:

171:3a7713b1edbc

Parent:

145:64910690c574

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_K82F/TOOLCHAIN_ARM_STD/fsl_flexio_i2s.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,569 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_FLEXIO_I2S_H_
+#define _FSL_FLEXIO_I2S_H_
+
+#include "fsl_common.h"
+#include "fsl_flexio.h"
+
+/*!
+ * @addtogroup flexio_i2s
+ * @{
+ */
+
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief FlexIO I2S driver version 2.1.0. */
+#define FSL_FLEXIO_I2S_DRIVER_VERSION (MAKE_VERSION(2, 1, 1))
+/*@}*/
+
+/*! @brief FlexIO I2S transfer status */
+enum _flexio_i2s_status
+{
+    kStatus_FLEXIO_I2S_Idle = MAKE_STATUS(kStatusGroup_FLEXIO_I2S, 0),      /*!< FlexIO I2S is in idle state */
+    kStatus_FLEXIO_I2S_TxBusy = MAKE_STATUS(kStatusGroup_FLEXIO_I2S, 1),    /*!< FlexIO I2S Tx is busy */
+    kStatus_FLEXIO_I2S_RxBusy = MAKE_STATUS(kStatusGroup_FLEXIO_I2S, 2),    /*!< FlexIO I2S Tx is busy */
+    kStatus_FLEXIO_I2S_Error = MAKE_STATUS(kStatusGroup_FLEXIO_I2S, 3),     /*!< FlexIO I2S error occurred */
+    kStatus_FLEXIO_I2S_QueueFull = MAKE_STATUS(kStatusGroup_FLEXIO_I2S, 4), /*!< FlexIO I2S transfer queue is full. */
+};
+
+/*! @brief Define FlexIO I2S access structure typedef */
+typedef struct _flexio_i2s_type
+{
+    FLEXIO_Type *flexioBase; /*!< FlexIO base pointer */
+    uint8_t txPinIndex;      /*!< Tx data pin index in FlexIO pins */
+    uint8_t rxPinIndex;      /*!< Rx data pin index */
+    uint8_t bclkPinIndex;    /*!< Bit clock pin index */
+    uint8_t fsPinIndex;      /*!< Frame sync pin index */
+    uint8_t txShifterIndex;  /*!< Tx data shifter index */
+    uint8_t rxShifterIndex;  /*!< Rx data shifter index */
+    uint8_t bclkTimerIndex;  /*!< Bit clock timer index */
+    uint8_t fsTimerIndex;    /*!< Frame sync timer index */
+} FLEXIO_I2S_Type;
+
+/*! @brief Master or slave mode */
+typedef enum _flexio_i2s_master_slave
+{
+    kFLEXIO_I2S_Master = 0x0U, /*!< Master mode */
+    kFLEXIO_I2S_Slave = 0x1U   /*!< Slave mode */
+} flexio_i2s_master_slave_t;
+
+/*! @brief Define FlexIO FlexIO I2S interrupt mask. */
+enum _flexio_i2s_interrupt_enable
+{
+    kFLEXIO_I2S_TxDataRegEmptyInterruptEnable = 0x1U, /*!< Transmit buffer empty interrupt enable. */
+    kFLEXIO_I2S_RxDataRegFullInterruptEnable = 0x2U,  /*!< Receive buffer full interrupt enable. */
+};
+
+/*! @brief Define FlexIO FlexIO I2S status mask. */
+enum _flexio_i2s_status_flags
+{
+    kFLEXIO_I2S_TxDataRegEmptyFlag = 0x1U, /*!< Transmit buffer empty flag. */
+    kFLEXIO_I2S_RxDataRegFullFlag = 0x2U,  /*!< Receive buffer full flag. */
+};
+
+/*! @brief FlexIO I2S configure structure */
+typedef struct _flexio_i2s_config
+{
+    bool enableI2S;                        /*!< Enable FlexIO I2S */
+    flexio_i2s_master_slave_t masterSlave; /*!< Master or slave */
+} flexio_i2s_config_t;
+
+/*! @brief FlexIO I2S audio format, FlexIO I2S only support the same format in Tx and Rx */
+typedef struct _flexio_i2s_format
+{
+    uint8_t bitWidth;       /*!< Bit width of audio data, always 8/16/24/32 bits */
+    uint32_t sampleRate_Hz; /*!< Sample rate of the audio data */
+} flexio_i2s_format_t;
+
+/*!@brief FlexIO I2S transfer queue size, user can refine it according to use case. */
+#define FLEXIO_I2S_XFER_QUEUE_SIZE (4)
+
+/*! @brief Audio sample rate */
+typedef enum _flexio_i2s_sample_rate
+{
+    kFLEXIO_I2S_SampleRate8KHz = 8000U,     /*!< Sample rate 8000Hz */
+    kFLEXIO_I2S_SampleRate11025Hz = 11025U, /*!< Sample rate 11025Hz */
+    kFLEXIO_I2S_SampleRate12KHz = 12000U,   /*!< Sample rate 12000Hz */
+    kFLEXIO_I2S_SampleRate16KHz = 16000U,   /*!< Sample rate 16000Hz */
+    kFLEXIO_I2S_SampleRate22050Hz = 22050U, /*!< Sample rate 22050Hz */
+    kFLEXIO_I2S_SampleRate24KHz = 24000U,   /*!< Sample rate 24000Hz */
+    kFLEXIO_I2S_SampleRate32KHz = 32000U,   /*!< Sample rate 32000Hz */
+    kFLEXIO_I2S_SampleRate44100Hz = 44100U, /*!< Sample rate 44100Hz */
+    kFLEXIO_I2S_SampleRate48KHz = 48000U,   /*!< Sample rate 48000Hz */
+    kFLEXIO_I2S_SampleRate96KHz = 96000U    /*!< Sample rate 96000Hz */
+} flexio_i2s_sample_rate_t;
+
+/*! @brief Audio word width */
+typedef enum _flexio_i2s_word_width
+{
+    kFLEXIO_I2S_WordWidth8bits = 8U,   /*!< Audio data width 8 bits */
+    kFLEXIO_I2S_WordWidth16bits = 16U, /*!< Audio data width 16 bits */
+    kFLEXIO_I2S_WordWidth24bits = 24U, /*!< Audio data width 24 bits */
+    kFLEXIO_I2S_WordWidth32bits = 32U  /*!< Audio data width 32 bits */
+} flexio_i2s_word_width_t;
+
+/*! @brief Define FlexIO I2S transfer structure. */
+typedef struct _flexio_i2s_transfer
+{
+    uint8_t *data;   /*!< Data buffer start pointer */
+    size_t dataSize; /*!< Bytes to be transferred. */
+} flexio_i2s_transfer_t;
+
+typedef struct _flexio_i2s_handle flexio_i2s_handle_t;
+
+/*! @brief FlexIO I2S xfer callback prototype */
+typedef void (*flexio_i2s_callback_t)(FLEXIO_I2S_Type *base,
+                                      flexio_i2s_handle_t *handle,
+                                      status_t status,
+                                      void *userData);
+
+/*! @brief Define FlexIO I2S handle structure. */
+struct _flexio_i2s_handle
+{
+    uint32_t state;                                          /*!< Internal state */
+    flexio_i2s_callback_t callback;                          /*!< Callback function called at transfer event*/
+    void *userData;                                          /*!< Callback parameter passed to callback function*/
+    uint8_t bitWidth;                                        /*!< Bit width for transfer, 8/16/24/32bits */
+    flexio_i2s_transfer_t queue[FLEXIO_I2S_XFER_QUEUE_SIZE]; /*!< Transfer queue storing queued transfer */
+    size_t transferSize[FLEXIO_I2S_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 */
+};
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /*_cplusplus*/
+
+/*!
+ * @name Initialization and deinitialization
+ * @{
+ */
+
+/*!
+ * @brief Initializes the FlexIO I2S.
+ *
+ * This API configures FlexIO pins and shifter to I2S and configures the FlexIO I2S with a configuration structure.
+ * The configuration structure can be filled by the user, or be set with default values by
+ * FLEXIO_I2S_GetDefaultConfig().
+ *
+ * @note  This API should be called at the beginning of the application to use
+ * the FlexIO I2S driver. Otherwise, any access to the FlexIO I2S module can cause hard fault
+ * because the clock is not enabled.
+ *
+ * @param base FlexIO I2S base pointer
+ * @param config FlexIO I2S configure structure.
+*/
+void FLEXIO_I2S_Init(FLEXIO_I2S_Type *base, const flexio_i2s_config_t *config);
+
+/*!
+ * @brief  Sets the FlexIO I2S configuration structure to default values.
+ *
+ * The purpose of this API is to get the configuration structure initialized for use in FLEXIO_I2S_Init().
+ * Users may use the initialized structure unchanged in FLEXIO_I2S_Init() or modify
+ * some fields of the structure before calling FLEXIO_I2S_Init().
+ *
+ * @param config pointer to master configuration structure
+ */
+void FLEXIO_I2S_GetDefaultConfig(flexio_i2s_config_t *config);
+
+/*!
+ * @brief De-initializes the FlexIO I2S.
+ *
+ * Calling this API gates the FlexIO i2s clock. After calling this API, call the FLEXO_I2S_Init to use the
+ * FlexIO I2S module.
+ *
+ * @param base FlexIO I2S base pointer
+*/
+void FLEXIO_I2S_Deinit(FLEXIO_I2S_Type *base);
+
+/*!
+ * @brief Enables/disables the FlexIO I2S module operation.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type
+ * @param enable True to enable, false to disable.
+*/
+static inline void FLEXIO_I2S_Enable(FLEXIO_I2S_Type *base, bool enable)
+{
+    if (enable)
+    {
+        base->flexioBase->CTRL |= FLEXIO_CTRL_FLEXEN_MASK;
+    }
+    else
+    {
+        base->flexioBase->CTRL &= ~FLEXIO_CTRL_FLEXEN_MASK;
+    }
+}
+
+/*! @} */
+
+/*!
+ * @name Status
+ * @{
+ */
+
+/*!
+ * @brief Gets the FlexIO I2S status flags.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @return Status flag, which are ORed by the enumerators in the _flexio_i2s_status_flags.
+*/
+uint32_t FLEXIO_I2S_GetStatusFlags(FLEXIO_I2S_Type *base);
+
+/*! @} */
+
+/*!
+ * @name Interrupts
+ * @{
+ */
+
+/*!
+ * @brief Enables the FlexIO I2S interrupt.
+ *
+ * This function enables the FlexIO UART interrupt.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @param mask interrupt source
+ */
+void FLEXIO_I2S_EnableInterrupts(FLEXIO_I2S_Type *base, uint32_t mask);
+
+/*!
+ * @brief Disables the FlexIO I2S interrupt.
+ *
+ * This function enables the FlexIO UART interrupt.
+ *
+ * @param base pointer to FLEXIO_I2S_Type structure
+ * @param mask interrupt source
+ */
+void FLEXIO_I2S_DisableInterrupts(FLEXIO_I2S_Type *base, uint32_t mask);
+
+/*! @} */
+
+/*!
+ * @name DMA Control
+ * @{
+ */
+
+/*!
+ * @brief Enables/disables the FlexIO I2S Tx DMA requests.
+ *
+ * @param base FlexIO I2S base pointer
+ * @param enable True means enable DMA, false means disable DMA.
+ */
+static inline void FLEXIO_I2S_TxEnableDMA(FLEXIO_I2S_Type *base, bool enable)
+{
+    FLEXIO_EnableShifterStatusDMA(base->flexioBase, 1 << base->txShifterIndex, enable);
+}
+
+/*!
+ * @brief Enables/disables the FlexIO I2S Rx DMA requests.
+ *
+ * @param base FlexIO I2S base pointer
+ * @param enable True means enable DMA, false means disable DMA.
+ */
+static inline void FLEXIO_I2S_RxEnableDMA(FLEXIO_I2S_Type *base, bool enable)
+{
+    FLEXIO_EnableShifterStatusDMA(base->flexioBase, 1 << base->rxShifterIndex, enable);
+}
+
+/*!
+ * @brief Gets the FlexIO I2S send data register address.
+ *
+ * This function returns the I2S data register address, mainly used by DMA/eDMA.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @return FlexIO i2s send data register address.
+ */
+static inline uint32_t FLEXIO_I2S_TxGetDataRegisterAddress(FLEXIO_I2S_Type *base)
+{
+    return FLEXIO_GetShifterBufferAddress(base->flexioBase, kFLEXIO_ShifterBufferBitSwapped, base->txShifterIndex);
+}
+
+/*!
+ * @brief Gets the FlexIO I2S receive data register address.
+ *
+ * This function returns the I2S data register address, mainly used by DMA/eDMA.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @return FlexIO i2s receive data register address.
+ */
+static inline uint32_t FLEXIO_I2S_RxGetDataRegisterAddress(FLEXIO_I2S_Type *base)
+{
+    return FLEXIO_GetShifterBufferAddress(base->flexioBase, kFLEXIO_ShifterBufferBitSwapped, base->rxShifterIndex);
+}
+
+/*! @} */
+
+/*!
+ * @name Bus Operations
+ * @{
+ */
+
+/*!
+ * @brief Configures the FlexIO I2S audio format in master mode.
+ *
+ * Audio format can be changed in run-time of FlexIO I2S. This function configures the sample rate and audio data
+ * format to be transferred.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @param format Pointer to FlexIO I2S audio data format structure.
+ * @param srcClock_Hz I2S master clock source frequency in Hz.
+*/
+void FLEXIO_I2S_MasterSetFormat(FLEXIO_I2S_Type *base, flexio_i2s_format_t *format, uint32_t srcClock_Hz);
+
+/*!
+ * @brief Configures the FlexIO I2S audio format in slave mode.
+ *
+ * Audio format can be changed in run-time of FlexIO I2S. This function configures the sample rate and audio data
+ * format to be transferred.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @param format Pointer to FlexIO I2S audio data format structure.
+*/
+void FLEXIO_I2S_SlaveSetFormat(FLEXIO_I2S_Type *base, flexio_i2s_format_t *format);
+
+/*!
+ * @brief Sends data using a blocking method.
+ *
+ * @note This function blocks via polling until data is ready to be sent.
+ *
+ * @param base FlexIO I2S base pointer.
+ * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits.
+ * @param txData Pointer to the data to be written.
+ * @param size Bytes to be written.
+ */
+void FLEXIO_I2S_WriteBlocking(FLEXIO_I2S_Type *base, uint8_t bitWidth, uint8_t *txData, size_t size);
+
+/*!
+ * @brief Writes data into a data register.
+ *
+ * @param base FlexIO I2S base pointer.
+ * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits.
+ * @param data Data to be written.
+ */
+static inline void FLEXIO_I2S_WriteData(FLEXIO_I2S_Type *base, uint8_t bitWidth, uint32_t data)
+{
+    base->flexioBase->SHIFTBUFBIS[base->txShifterIndex] = (data << (32U - bitWidth));
+}
+
+/*!
+ * @brief Receives a piece of data using a blocking method.
+ *
+ * @note This function blocks via polling until data is ready to be sent.
+ *
+ * @param base FlexIO I2S base pointer
+ * @param bitWidth How many bits in a audio word, usually 8/16/24/32 bits.
+ * @param rxData Pointer to the data to be read.
+ * @param size Bytes to be read.
+ */
+void FLEXIO_I2S_ReadBlocking(FLEXIO_I2S_Type *base, uint8_t bitWidth, uint8_t *rxData, size_t size);
+
+/*!
+ * @brief Reads a data from the data register.
+ *
+ * @param base FlexIO I2S base pointer
+ * @return Data read from data register.
+ */
+static inline uint32_t FLEXIO_I2S_ReadData(FLEXIO_I2S_Type *base)
+{
+    return base->flexioBase->SHIFTBUFBIS[base->rxShifterIndex];
+}
+
+/*! @} */
+
+/*!
+ * @name Transactional
+ * @{
+ */
+
+/*!
+ * @brief Initializes the FlexIO I2S handle.
+ *
+ * This function initializes the FlexIO I2S handle which can be used for other
+ * FlexIO I2S transactional APIs. Call this API once to get the
+ * initialized handle.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure
+ * @param handle Pointer to flexio_i2s_handle_t structure to store the transfer state.
+ * @param callback FlexIO I2S callback function, which is called while finished a block.
+ * @param userData User parameter for the FlexIO I2S callback.
+ */
+void FLEXIO_I2S_TransferTxCreateHandle(FLEXIO_I2S_Type *base,
+                                       flexio_i2s_handle_t *handle,
+                                       flexio_i2s_callback_t callback,
+                                       void *userData);
+
+/*!
+ * @brief Configures the FlexIO I2S audio format.
+ *
+ * Audio format can be changed at run-time of FlexIO I2S. This function configures the sample rate and audio data
+ * format to be transferred.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle FlexIO I2S handle pointer.
+ * @param format Pointer to audio data format structure.
+ * @param srcClock_Hz FlexIO I2S bit clock source frequency in Hz. This parameter should be 0 while in slave mode.
+*/
+void FLEXIO_I2S_TransferSetFormat(FLEXIO_I2S_Type *base,
+                                  flexio_i2s_handle_t *handle,
+                                  flexio_i2s_format_t *format,
+                                  uint32_t srcClock_Hz);
+
+/*!
+ * @brief Initializes the FlexIO I2S receive handle.
+ *
+ * This function initializes the FlexIO I2S handle which can be used for other
+ * FlexIO I2S transactional APIs. Call this API once to get the
+ * initialized handle.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure to store the transfer state.
+ * @param callback FlexIO I2S callback function, which is called while finished a block.
+ * @param userData User parameter for the FlexIO I2S callback.
+ */
+void FLEXIO_I2S_TransferRxCreateHandle(FLEXIO_I2S_Type *base,
+                                       flexio_i2s_handle_t *handle,
+                                       flexio_i2s_callback_t callback,
+                                       void *userData);
+
+/*!
+ * @brief Performs an interrupt non-blocking send transfer on FlexIO I2S.
+ *
+ * @note The API returns immediately after transfer initiates.
+ * Call FLEXIO_I2S_GetRemainingBytes to poll the transfer status and check whether
+ * the transfer is finished. If the return status is 0, the transfer is finished.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure which stores the transfer state
+ * @param xfer Pointer to flexio_i2s_transfer_t structure
+ * @retval kStatus_Success Successfully start the data transmission.
+ * @retval kStatus_FLEXIO_I2S_TxBusy Previous transmission still not finished, data not all written to TX register yet.
+ * @retval kStatus_InvalidArgument The input parameter is invalid.
+ */
+status_t FLEXIO_I2S_TransferSendNonBlocking(FLEXIO_I2S_Type *base,
+                                            flexio_i2s_handle_t *handle,
+                                            flexio_i2s_transfer_t *xfer);
+
+/*!
+ * @brief Performs an interrupt non-blocking receive transfer on FlexIO I2S.
+ *
+ * @note The API returns immediately after transfer initiates.
+ * Call FLEXIO_I2S_GetRemainingBytes to poll the transfer status to check whether
+ * the transfer is finished. If the return status is 0, the transfer is finished.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure which stores the transfer state
+ * @param xfer Pointer to flexio_i2s_transfer_t structure
+ * @retval kStatus_Success Successfully start the data receive.
+ * @retval kStatus_FLEXIO_I2S_RxBusy Previous receive still not finished.
+ * @retval kStatus_InvalidArgument The input parameter is invalid.
+ */
+status_t FLEXIO_I2S_TransferReceiveNonBlocking(FLEXIO_I2S_Type *base,
+                                               flexio_i2s_handle_t *handle,
+                                               flexio_i2s_transfer_t *xfer);
+
+/*!
+ * @brief Aborts the current send.
+ *
+ * @note This API can be called at any time when interrupt non-blocking transfer initiates
+ * to abort the transfer in a early time.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure which stores the transfer state
+ */
+void FLEXIO_I2S_TransferAbortSend(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle);
+
+/*!
+ * @brief Aborts the current receive.
+ *
+ * @note This API can be called at any time when interrupt non-blocking transfer initiates
+ * to abort the transfer in a early time.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure which stores the transfer state
+ */
+void FLEXIO_I2S_TransferAbortReceive(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle);
+
+/*!
+ * @brief Gets the remaining bytes to be sent.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure which stores the transfer state
+ * @param count Bytes sent.
+ * @retval kStatus_Success Succeed get the transfer count.
+ * @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress.
+ */
+status_t FLEXIO_I2S_TransferGetSendCount(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, size_t *count);
+
+/*!
+ * @brief Gets the remaining bytes to be received.
+ *
+ * @param base Pointer to FLEXIO_I2S_Type structure.
+ * @param handle Pointer to flexio_i2s_handle_t structure which stores the transfer state
+ * @return count Bytes received.
+ * @retval kStatus_Success Succeed get the transfer count.
+ * @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress.
+ */
+status_t FLEXIO_I2S_TransferGetReceiveCount(FLEXIO_I2S_Type *base, flexio_i2s_handle_t *handle, size_t *count);
+
+/*!
+ * @brief Tx interrupt handler.
+ *
+ * @param i2sBase Pointer to FLEXIO_I2S_Type structure.
+ * @param i2sHandle Pointer to flexio_i2s_handle_t structure
+ */
+void FLEXIO_I2S_TransferTxHandleIRQ(void *i2sBase, void *i2sHandle);
+
+/*!
+ * @brief Rx interrupt handler.
+ *
+ * @param i2sBase Pointer to FLEXIO_I2S_Type structure.
+ * @param i2sHandle Pointer to flexio_i2s_handle_t structure.
+ */
+void FLEXIO_I2S_TransferRxHandleIRQ(void *i2sBase, void *i2sHandle);
+
+/*! @} */
+
+#if defined(__cplusplus)
+}
+#endif /*_cplusplus*/
+
+/*! @} */
+
+#endif /* _FSL_FLEXIO_I2S_H_ */