/** * \file * \brief ATCA Hardware abstraction layer for I2C bit banging. * * \copyright (c) 2015-2020 Microchip Technology Inc. and its subsidiaries. * * \page License * * Subject to your compliance with these terms, you may use Microchip software * and any derivatives exclusively with Microchip products. It is your * responsibility to comply with third party license terms applicable to your * use of third party software (including open source software) that may * accompany Microchip software. * * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, WHETHER * EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A * PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, * SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE * OF ANY KIND WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF * MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE * FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL * LIABILITY ON ALL CLAIMS IN ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED * THE AMOUNT OF FEES, IF ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR * THIS SOFTWARE. */ #ifndef HAL_I2C_BITBANG_H_ #define HAL_I2C_BITBANG_H_ #if BOARD == AT88CK9000 # include "i2c_bitbang_at88ck9000.h" #endif #if (SAMD21 == 1) #include "i2c_bitbang_samd21.h" #endif /** * \defgroup hal_ Hardware abstraction layer (hal_) * * \brief These methods define the hardware abstraction layer for * communicating with a CryptoAuth device using I2C bit banging. @{ */ /** * \brief This enumeration lists flags for I2C read or write addressing. */ enum i2c_read_write_flag { I2C_WRITE = (uint8_t)0x00, //!< write command flag I2C_READ = (uint8_t)0x01 //!< read command flag }; /** * \brief This is the hal_data for ATCA HAL. */ typedef struct atcaI2Cmaster { uint32_t pin_sda; uint32_t pin_scl; int ref_ct; //! for conveniences during interface release phase int bus_index; } ATCAI2CMaster_t; /** @} */ #endif /* HAL_AT88CK900X_I2C_H_ */