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/*
* Copyright (c) 2014, 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_I2C_HAL_H__
#define __FSL_FLEXIO_I2C_HAL_H__
#include <stdint.h>
#include <stdbool.h>
#include "fsl_flexio_hal.h"
#if FSL_FEATURE_SOC_FLEXIO_COUNT
/*!
* @addtogroup flexio_i2c_hal
* @{
*/
/*!
* @brief Define structure of configuring the flexio i2c device.
*/
typedef struct FlexioI2cDev
{
FLEXIO_Type * flexioBase; /*!< FlexIO module base pointer. */
uint32_t sdaPinIdx; /*!< Pin index for I2C SDA in FlexIO. */
uint32_t sckPinIdx; /*!< Pin index for I2C SCK in FlexIO. */
uint32_t shifterIdx[2]; /*!< Shifter index used for I2C in FlexIO. */
uint32_t timerIdx[2]; /*!< Timer index used for I2C in FlexIO. */
} flexio_i2c_dev_t;
/*!
* @brief Define structure of configuring the flexio i2c bus for master.
*/
typedef struct FlexioI2cMasterConfig
{
uint32_t flexioBusClk; /*!< FlexIO bus clock frequency in Hz. */
uint32_t baudrate; /*!< I2C xfer bandrate in bps. */
uint32_t xferWordCount; /*!< Word count for one transfer frame. */
} flexio_i2c_master_config_t;
#if defined(__cplusplus)
extern "C" {
#endif
/*---------------------------------------------------------------------------
* Configure.
*-------------------------------------------------------------------------*/
/*!
* @brief Configure the flexio working as i2c master device.
*
* @param devPtr Pointer to the device.
* @param configPtr Pointer to configuration structure.
* @return Execution status.
*/
flexio_status_t FLEXIO_I2C_HAL_ConfigMaster(flexio_i2c_dev_t *devPtr, const flexio_i2c_master_config_t *configPtr);
/*!
* @brief Configure the count of words for each frame.
*
* When using flexio_i2c_master, each frame's length should be configured
* before sending any word. Of course, when calling the FLEXIO_I2C_HAL_ConfigMaster(),
* user can set the "configPtr->xferWrodCount" to set word count. However, this
* API could provide the light-weight setting without changing any other settings.
*
* @param devPtr Pointer to the device.
* @param count Word count for each frame.
* @return Execution status.
*/
flexio_status_t FLEXIO_I2C_HAL_ConfigXferWordCountOnce(flexio_i2c_dev_t *devPtr, uint32_t count);
/*---------------------------------------------------------------------------
* Tx.
*-------------------------------------------------------------------------*/
/*!
* @brief Get the flag if the rx buffer is empty.
*
* @param devPtr Pointer to the device.
* @return Assertion of the event.
*/
bool FLEXIO_I2C_HAL_GetTxBufferEmptyFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Clear the flag of tx buffer empty manually.
*
* @param devPtr Pointer to the device.
*/
void FLEXIO_I2C_HAL_ClearTxBufferEmptyFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Switch on/off the interrupt for tx buffer is empty.
*
* @param devPtr Pointer to the device.
* @param enable Switcher to the event.
*/
void FLEXIO_I2C_HAL_SetTxBufferEmptyIntCmd(flexio_i2c_dev_t *devPtr, bool enable);
/*!
* @brief Get the tx error flag.
*
* @param devPtr Pointer to the device.
* @return Assertion of the event.
*/
bool FLEXIO_I2C_HAL_GetTxErrFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Clear the tx error flag manually.
*
* @param devPtr Pointer to the device.
*/
void FLEXIO_I2C_HAL_ClearTxErrFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Switch on/off the interrupt for tx error.
*
* @param devPtr Pointer to the device.
* @param enable Switcher to the event.
*/
void FLEXIO_I2C_HAL_SetTxErrIntCmd(flexio_i2c_dev_t *devPtr, bool enable);
/*!
* @brief Put data into tx buffer.
*
* @param devPtr Pointer to the device.
* @param dat Sending data.
*/
void FLEXIO_I2C_HAL_PutData(flexio_i2c_dev_t *devPtr, uint32_t dat);
/*!
* @brief Put data into tx buffer when empty.
*
* @param devPtr Pointer to the device.
* @param dat Sending data.
*/
void FLEXIO_I2C_HAL_PutDataPolling(flexio_i2c_dev_t *devPtr, uint32_t dat);
/*!
* @brief Switch on/off the tx DMA support.
*
* @param devPtr Pointer to the device.
* @param enable Switcher to the event.
*/
void FLEXIO_I2C_HAL_SetTxDmaCmd(flexio_i2c_dev_t *devPtr, bool enable);
/*!
* @brief Get address of tx buffer when using DMA.
*
* @param devPtr Pointer to the device.
* @return Address of tx buffer.
*/
uint32_t FLEXIO_I2C_HAL_GetTxBufferAddr(flexio_i2c_dev_t *devPtr);
/*---------------------------------------------------------------------------
* Rx.
*-------------------------------------------------------------------------*/
/*!
* @brief Get the flag that rx buffer is full.
*
* @param devPtr Pointer to the device.
* @return Assertion of the event.
*/
bool FLEXIO_I2C_HAL_GetRxBufferFullFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Clear the rx buffer empty flag manually.
*
* @param devPtr Pointer to the device.
*/
void FLEXIO_I2C_HAL_ClearRxBufferFullFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Switch on/off the interrupt for rx buffer is full.
*
* @param devPtr Pointer to the device.
* @param enable Switcher to the event.
*/
void FLEXIO_I2C_HAL_SetRxBufferFullIntCmd(flexio_i2c_dev_t *devPtr, bool enable);
/*!
* @brief Get the rx error flag.
*
* @param devPtr Pointer to the device.
* @return Assertion of the event.
*/
bool FLEXIO_I2C_HAL_GetRxErrFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Clear the rx error flag manually.
*
* @param devPtr Pointer to the device.
*/
void FLEXIO_I2C_HAL_ClearRxErrFlag(flexio_i2c_dev_t *devPtr);
/*!
* @brief Switch on/off the interrupt for rx error.
*
* @param devPtr Pointer to the device.
* @param enable Switcher to the event.
*/
void FLEXIO_I2C_HAL_SetRxErrIntCmd(flexio_i2c_dev_t *devPtr, bool enable);
/*!
* @brief Get the data from tx buffer.
*
* @param devPtr Pointer to the device.
* @return Data from rx buffer.
*/
uint32_t FLEXIO_I2C_HAL_GetData(flexio_i2c_dev_t *devPtr);
/*!
* @brief Get the data from tx buffer when full.
*
* @param devPtr Pointer to the device.
* @return Data from rx buffer.
*/
uint32_t FLEXIO_I2C_HAL_GetDataPolling(flexio_i2c_dev_t *devPtr);
/*!
* @brief Switch on/off the rx DMA support.
*
* @param devPtr Pointer to the device.
* @param enable Switcher to the event.
*/
void FLEXIO_I2C_HAL_SetRxDmaCmd(flexio_i2c_dev_t *devPtr, bool enable);
/*!
* @brief Get the address the of rx buffer.
*
* @param devPtr Pointer to the device.
* @return Address of rx buffer.
*/
uint32_t FLEXIO_I2C_HAL_GetRxBufferAddr(flexio_i2c_dev_t *devPtr);
/*!
* @brief Configure the next sending would generate NACK condition.
*
* @param devPtr Pointer to the device.
*/
void FLEXIO_I2C_HAL_ConfigSendNAck(flexio_i2c_dev_t *devPtr);
/*!
* @brief Configure the next sending would generate ACK condition.
*
* @param devPtr Pointer to the device.
*/
void FLEXIO_I2C_HAL_ConfigSendAck(flexio_i2c_dev_t *devPtr);
#if defined(__cplusplus)
}
#endif
/*! @} */
#endif
#endif /* __FSL_FLEXIO_I2C_HAL_H__ */
/*******************************************************************************
* EOF
******************************************************************************/
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