forked from forks/qmk_firmware
e9bd7d7ad3
* remove i2c_start and i2c_stop from i2c drivers * remove static i2c_address variable from chibios i2c driver
50 lines
2.5 KiB
C
50 lines
2.5 KiB
C
/* Copyright 2018 Jack Humbert
|
|
* Copyright 2018 Yiancar
|
|
*
|
|
* 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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* 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 <stdint.h>
|
|
|
|
// ### 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)
|
|
|
|
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);
|