//***************************************************************************** // // am_hal_i2c_bit_bang.h //! @file //! //! @brief I2C bit bang module. //! //! These functions implement the I2C bit bang utility // //***************************************************************************** //***************************************************************************** // // Copyright (c) 2020, 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. // // Third party software included in this distribution is subject to the // additional license terms as defined in the /docs/licenses directory. // // 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 2.4.2 of the AmbiqSuite Development Package. // //***************************************************************************** #ifndef AM_HAL_I2C_BIT_BANG_H #define AM_HAL_I2C_BIT_BANG_H //***************************************************************************** // // 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_STATUS_MAX, }am_hal_i2c_bit_bang_enum_e; #ifdef __cplusplus extern "C" { #endif //***************************************************************************** // // External function definitions // //***************************************************************************** extern am_hal_i2c_bit_bang_enum_e am_hal_i2c_bit_bang_init(uint32_t sck_gpio_number, uint32_t sda_gpio_number); extern am_hal_i2c_bit_bang_enum_e 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_e 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. //! @} // //*****************************************************************************