1 /* Copyright (C) 2019 Elia Ritterbusch
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 3 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <https://www.gnu.org/licenses/>.
16 /* Library made by: g4lvanix
17 * Github repository: https://github.com/g4lvanix/I2C-master-lib
24 #define I2C_WRITE 0x00
26 typedef int16_t i2c_status_t;
28 #define I2C_STATUS_SUCCESS (0)
29 #define I2C_STATUS_ERROR (-1)
30 #define I2C_STATUS_TIMEOUT (-2)
32 #define I2C_TIMEOUT_IMMEDIATE (0)
33 #define I2C_TIMEOUT_INFINITE (0xFFFF)
36 i2c_status_t i2c_start(uint8_t address, uint16_t timeout);
37 i2c_status_t i2c_write(uint8_t data, uint16_t timeout);
38 int16_t i2c_read_ack(uint16_t timeout);
39 int16_t i2c_read_nack(uint16_t timeout);
40 i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout);
41 i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
42 i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, const uint8_t* data, uint16_t length, uint16_t timeout);
43 i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
46 #endif // I2C_MASTER_H