/* Copyright 2018 Jack Humbert
* Copyright 2018 Yiancar
* Copyright 2024 Nick Brassel (@tzarc)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
/* This library follows the convention of the AVR i2c_master library.
* As a result addresses are expected to be already shifted (addr << 1).
* I2CD1 is the default driver which corresponds to pins B6 and B7. This
* can be changed.
* Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that
* STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file.
*/
#pragma once
#include
#include
// ### DEPRECATED - DO NOT USE ###
#define i2c_writeReg(devaddr, regaddr, data, length, timeout) i2c_write_register(devaddr, regaddr, data, length, timeout)
#define i2c_writeReg16(devaddr, regaddr, data, length, timeout) i2c_write_register16(devaddr, regaddr, data, length, timeout)
#define i2c_readReg(devaddr, regaddr, data, length, timeout) i2c_read_register(devaddr, regaddr, data, length, timeout)
#define i2c_readReg16(devaddr, regaddr, data, length, timeout) i2c_read_register16(devaddr, regaddr, data, length, timeout)
// ###############################
typedef int16_t i2c_status_t;
#define I2C_STATUS_SUCCESS (0)
#define I2C_STATUS_ERROR (-1)
#define I2C_STATUS_TIMEOUT (-2)
#ifndef I2C_MULTI_BUS
void i2c_init(void);
i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c_write_register(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c_write_register16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c_read_register(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c_read_register16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c_ping_address(uint8_t address, uint16_t timeout);
#else
# if defined(RP_I2C_USE_I2C0) && RP_I2C_USE_I2C0 == TRUE
# define HAS_I2C0
# endif
# if (defined(STM32_I2C_USE_I2C1) && STM32_I2C_USE_I2C1 == TRUE) || (defined(RP_I2C_USE_I2C1) && RP_I2C_USE_I2C1 == TRUE)
# define HAS_I2C1
# endif
# if defined(STM32_I2C_USE_I2C2) && STM32_I2C_USE_I2C2 == TRUE
# define HAS_I2C2
# endif
# ifdef HAS_I2C0
void i2c0_init(void);
i2c_status_t i2c0_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c0_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c0_write_register(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c0_write_register16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c0_read_register(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c0_read_register16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c0_ping_address(uint8_t address, uint16_t timeout);
# endif // HAS_I2C0
# ifdef HAS_I2C1
void i2c1_init(void);
i2c_status_t i2c1_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c1_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c1_write_register(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c1_write_register16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c1_read_register(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c1_read_register16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c1_ping_address(uint8_t address, uint16_t timeout);
# endif // HAS_I2C1
# ifdef HAS_I2C2
void i2c2_init(void);
i2c_status_t i2c2_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c2_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c2_write_register(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c2_write_register16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c2_read_register(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c2_read_register16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
i2c_status_t i2c2_ping_address(uint8_t address, uint16_t timeout);
# endif // HAS_I2C2
# ifdef I2C_DEFAULT_BUS
# if I2C_DEFAULT_BUS == 0
# define i2c_init i2c0_init
# define i2c_transmit i2c0_transmit
# define i2c_receive i2c0_receive
# define i2c_write_register i2c0_write_register
# define i2c_write_register16 i2c0_write_register16
# define i2c_read_register i2c0_read_register
# define i2c_read_register16 i2c0_read_register16
# define i2c_ping_address i2c0_ping_address
# elif I2C_DEFAULT_BUS == 1
# define i2c_init i2c1_init
# define i2c_transmit i2c1_transmit
# define i2c_receive i2c1_receive
# define i2c_write_register i2c1_write_register
# define i2c_write_register16 i2c1_write_register16
# define i2c_read_register i2c1_read_register
# define i2c_read_register16 i2c1_read_register16
# define i2c_ping_address i2c1_ping_address
# elif I2C_DEFAULT_BUS == 2
# define i2c_init i2c2_init
# define i2c_transmit i2c2_transmit
# define i2c_receive i2c2_receive
# define i2c_write_register i2c2_write_register
# define i2c_write_register16 i2c2_write_register16
# define i2c_read_register i2c2_read_register
# define i2c_read_register16 i2c2_read_register16
# define i2c_ping_address i2c2_ping_address
# endif // I2C_DEFAULT_BUS == ?
# endif // I2C_DEFAULT_BUS
#endif // I2C_MULTI_BUS