1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright (C) 2020, Huada Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-10-30 CDT first version
*/
#ifndef __DRV_I2C_H__
#define __DRV_I2C_H__
/*******************************************************************************
* Include files
******************************************************************************/
#include <rtdevice.h>
#include "hc32_ddl.h"
/* C binding of definitions if building with C++ compiler */
#ifdef __cplusplus
extern "C"
{
#endif
/*******************************************************************************
* Global type definitions ('typedef')
******************************************************************************/
struct hc32_soft_i2c_config
{
rt_uint16_t scl_pin;
rt_uint16_t sda_pin;
const char *bus_name;
};
#ifdef BSP_USING_I2C1
#define I2C1_BUS_CONFIG \
{ \
.scl_pin = BSP_I2C1_SCL_PIN, \
.sda_pin = BSP_I2C1_SDA_PIN, \
.bus_name = "i2c1", \
}
#endif
#ifdef BSP_USING_I2C2
#define I2C2_BUS_CONFIG \
{ \
.scl = BSP_I2C2_SCL_PIN, \
.sda = BSP_I2C2_SDA_PIN, \
.bus_name = "i2c2", \
}
#endif
#ifdef BSP_USING_I2C3
#define I2C3_BUS_CONFIG \
{ \
.scl = BSP_I2C3_SCL_PIN, \
.sda = BSP_I2C3_SDA_PIN, \
.bus_name = "i2c3", \
}
#endif
#ifdef BSP_USING_I2C4
#define I2C4_BUS_CONFIG \
{ \
.scl = BSP_I2C4_SCL_PIN, \
.sda = BSP_I2C4_SDA_PIN, \
.bus_name = "i2c4", \
}
#endif
#ifdef BSP_USING_I2C5
#define I2C5_BUS_CONFIG \
{ \
.scl = BSP_I2C5_SCL_PIN, \
.sda = BSP_I2C5_SDA_PIN, \
.bus_name = "i2c5", \
}
#endif
#ifdef BSP_USING_I2C6
#define I2C6_BUS_CONFIG \
{ \
.scl = BSP_I2C6_SCL_PIN, \
.sda = BSP_I2C6_SDA_PIN, \
.bus_name = "i2c6", \
}
#endif
/**
*******************************************************************************
** \brief Open parameters.
*******************************************************************************
*/
struct hc32_i2c_config
{
rt_uint8_t scl;
rt_uint8_t sda;
const char *bus_name;
};
struct hc32_i2c
{
struct rt_i2c_bit_ops ops;
struct rt_i2c_bus_device i2c1_bus;
};
typedef struct hc32_i2c_instance
{
rt_uint32_t id;
void *handle;
stc_i2c_init_t init;
} hc32_i2c_instance_t;
int hc32_hw_i2c_init(void);
#ifdef __cplusplus
}
#endif
#endif /* __DRV_I2C_H__ */
/*******************************************************************************
* EOF (not truncated)
******************************************************************************/
|
