forked from forks/qmk_firmware
48 lines
2 KiB
C
48 lines
2 KiB
C
/* Copyright (C) 2019 Elia Ritterbusch
|
|
+
|
|
* 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 3 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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
/* Library made by: g4lvanix
|
|
* GitHub repository: https://github.com/g4lvanix/I2C-master-lib
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
#define I2C_READ 0x01
|
|
#define I2C_WRITE 0x00
|
|
|
|
typedef int16_t i2c_status_t;
|
|
|
|
#define I2C_STATUS_SUCCESS (0)
|
|
#define I2C_STATUS_ERROR (-1)
|
|
#define I2C_STATUS_TIMEOUT (-2)
|
|
|
|
#define I2C_TIMEOUT_IMMEDIATE (0)
|
|
#define I2C_TIMEOUT_INFINITE (0xFFFF)
|
|
|
|
void i2c_init(void);
|
|
i2c_status_t i2c_start(uint8_t address, uint16_t timeout);
|
|
i2c_status_t i2c_write(uint8_t data, uint16_t timeout);
|
|
int16_t i2c_read_ack(uint16_t timeout);
|
|
int16_t i2c_read_nack(uint16_t timeout);
|
|
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_writeReg(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
|
|
i2c_status_t i2c_writeReg16(uint8_t devaddr, uint16_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
|
|
i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
|
|
i2c_status_t i2c_readReg16(uint8_t devaddr, uint16_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
|
|
void i2c_stop(void);
|