1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _I2C_H_ 18 #define _I2C_H_ 19 20 #include "stm32_bl.h" 21 22 typedef struct i2c_handle 23 { 24 handle_t handle; 25 int fd; 26 uint8_t addr; 27 } i2c_handle_t; 28 29 uint8_t i2c_write_data(handle_t *handle, uint8_t *buffer, int length); 30 uint8_t i2c_write_cmd(handle_t *handle, uint8_t cmd); 31 uint8_t i2c_read_data(handle_t *handle, uint8_t *data, int length); 32 uint8_t i2c_read_ack(handle_t *handle); 33 int i2c_init(handle_t *handle); 34 35 #endif /* _I2C_H_ */ 36