571 lines
21 KiB
C
571 lines
21 KiB
C
/*
|
|
* Copyright (c) 2015, Freescale Semiconductor, Inc.
|
|
* Copyright 2016-2017 NXP
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* o Redistributions of source code must retain the above copyright notice, this list
|
|
* of conditions and the following disclaimer.
|
|
*
|
|
* o Redistributions in binary form must reproduce the above copyright notice, this
|
|
* list of conditions and the following disclaimer in the documentation and/or
|
|
* other materials provided with the distribution.
|
|
*
|
|
* o Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived from this
|
|
* software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#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 2.1.1. */
|
|
#define FSL_FLEXIO_I2S_DRIVER_VERSION (MAKE_VERSION(2, 1, 2))
|
|
/*@}*/
|
|
|
|
/*! @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_pin_polarity_t txPinPolarity; /*!< Tx data pin polarity, active high or low */
|
|
flexio_pin_polarity_t rxPinPolarity; /*!< Rx data pin polarity */
|
|
flexio_pin_polarity_t bclkPinPolarity; /*!< Bit clock pin polarity */
|
|
flexio_pin_polarity_t fsPinPolarity; /*!< Frame sync pin polarity */
|
|
flexio_shifter_timer_polarity_t txTimerPolarity; /*!< Tx data valid on bclk rising or falling edge */
|
|
flexio_shifter_timer_polarity_t rxTimerPolarity; /*!< Rx data valid on bclk rising or falling edge */
|
|
} 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 resets the FlexIO I2S shifter and timer config. 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 dose not have any effect.
|
|
*/
|
|
static inline void FLEXIO_I2S_Enable(FLEXIO_I2S_Type *base, bool enable)
|
|
{
|
|
if (enable)
|
|
{
|
|
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_ */
|