1 /*
2  * Copyright (c) 2006-2023, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2022-09-19     hg0720       the first version which add from wch
9  */
10 
11 #ifndef __DRV_I2C__
12 #define __DRV_I2C__
13 
14 #include <rtthread.h>
15 #include <rthw.h>
16 #include <rtdevice.h>
17 
18 /* ch32 config class */
19 struct ch32_soft_i2c_config
20 {
21     rt_uint8_t scl;
22     rt_uint8_t sda;
23     const char *bus_name;
24 };
25 
26 /* ch32 i2c dirver class */
27 struct ch32_i2c
28 {
29     struct rt_i2c_bit_ops ops;
30     struct rt_i2c_bus_device i2c_bus;
31 };
32 
33 #ifdef BSP_USING_I2C1
34 #define I2C1_BUS_CONFIG                                  \
35     {                                                    \
36         .scl = BSP_I2C1_SCL_PIN,                         \
37         .sda = BSP_I2C1_SDA_PIN,                         \
38         .bus_name = "i2c1",                              \
39     }
40 #endif
41 
42 #ifdef BSP_USING_I2C2
43 #define I2C2_BUS_CONFIG                                  \
44     {                                                    \
45         .scl = BSP_I2C2_SCL_PIN,                         \
46         .sda = BSP_I2C2_SDA_PIN,                         \
47         .bus_name = "i2c2",                              \
48     }
49 #endif
50 
51 int rt_hw_i2c_init(void);
52 
53 #endif
54