rt-thread/bsp/apollo2/libraries/drivers/hal/am_hal_i2c_bit_bang.h

//*****************************************************************************
//
//  am_hal_i2c_bit_bang.h
//! @file
//!
//! @brief I2C bit bang module.
//!
//! These functions implement the I2C bit bang utility
//
//*****************************************************************************

//*****************************************************************************
//
// Copyright (c) 2017, Ambiq Micro
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 
// 2. 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.
// 
// 3. 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.
//
// This is part of revision 1.2.9 of the AmbiqSuite Development Package.
//
//*****************************************************************************
#ifndef AM_HAL_I2C_BIT_BANG_H
#define AM_HAL_I2C_BIT_BANG_H

#ifdef __cplusplus
extern "C"
{
#endif

//*****************************************************************************
//
// Enumerated return constants
//
//*****************************************************************************
typedef enum
{
    AM_HAL_I2C_BIT_BANG_SUCCESS = 0,
    AM_HAL_I2C_BIT_BANG_ADDRESS_NAKED,
    AM_HAL_I2C_BIT_BANG_DATA_NAKED,
    AM_HAL_I2C_BIT_BANG_CLOCK_TIMEOUT,
    AM_HAL_I2C_BIT_BANG_DATA_TIMEOUT,
}am_hal_i2c_bit_bang_enum_t;

//*****************************************************************************
//
// External function definitions
//
//*****************************************************************************
extern am_hal_i2c_bit_bang_enum_t am_hal_i2c_bit_bang_init(uint32_t sck_gpio_number,
                                     uint32_t sda_gpio_number);

extern am_hal_i2c_bit_bang_enum_t am_hal_i2c_bit_bang_send(uint8_t address,
                                                    uint32_t number_of_bytes,
                                                    uint8_t *pData,
                                                    uint8_t ui8Offset,
                                                    bool bUseOffset,
                                                    bool bNoStop);

extern am_hal_i2c_bit_bang_enum_t am_hal_i2c_bit_bang_receive(uint8_t address,
                                                    uint32_t number_of_bytes,
                                                    uint8_t *pData,
                                                    uint8_t ui8Offset,
                                                    bool bUseOffset,
                                                    bool bNoStop);
#ifdef __cplusplus
}
#endif

#endif //AM_HAL_I2C_BIT_BANG_H

//*****************************************************************************
//
// End Doxygen group.
//! @}
//
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