diff options
author | Drashna Jael're <drashna@live.com> | 2021-10-11 20:36:47 -0700 |
---|---|---|
committer | Drashna Jael're <drashna@live.com> | 2021-10-11 20:36:47 -0700 |
commit | b34675555cbd9a71a797a7ebc2148cbf2e8f0efc (patch) | |
tree | 2d701310ccd3fc2c603d63536ab4a3c1d9b9381b /platforms/avr/drivers/i2c_master.h | |
parent | bcddde8738dbba48c548f1e3f12a10bbf60a65d8 (diff) | |
parent | d9e077468ab3446cbd7306a453a73dad2c1403e8 (diff) |
Merge commit 'd9e077468ab3446cbd7306a453a73dad2c1403e8' into firmware_21
Diffstat (limited to 'platforms/avr/drivers/i2c_master.h')
-rw-r--r-- | platforms/avr/drivers/i2c_master.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/platforms/avr/drivers/i2c_master.h b/platforms/avr/drivers/i2c_master.h new file mode 100644 index 0000000000..e5af73364b --- /dev/null +++ b/platforms/avr/drivers/i2c_master.h @@ -0,0 +1,43 @@ +/* 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 + +#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_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); +void i2c_stop(void); |