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