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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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.
ChibiOS/RT 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file templates/i2c_lld.c
* @brief I2C Driver subsystem low level driver source template.
*
* @addtogroup I2C
* @{
*/
#include "ch.h"
#include "hal.h"
#if HAL_USE_I2C || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level I2C driver initialization.
*
* @notapi
*/
void i2c_lld_init(void) {
}
/**
* @brief Configures and activates the I2C peripheral.
*
* @param[in] i2cp pointer to the @p I2CDriver object
*
* @notapi
*/
void i2c_lld_start(I2CDriver *i2cp) {
if (i2cp->i2c_state == I2C_STOP) {
/* Clock activation.*/
}
/* Configuration.*/
}
/**
* @brief Deactivates the I2C peripheral.
*
* @param[in] i2cp pointer to the @p I2CDriver object
*
* @notapi
*/
void i2c_lld_stop(I2CDriver *i2cp) {
}
/**
* @brief Initiates a master bus transaction.
* @details This function sends a start bit followed by an one or two bytes
* header.
*
* @param[in] i2cp pointer to the @p I2CDriver object
* @param[in] header transaction header
*
* @notapi
*/
void i2c_lld_master_start(I2CDriver *i2cp, uint16_t header) {
}
/**
* @brief Terminates a master bus transaction.
*
* @param[in] i2cp pointer to the @p I2CDriver object
*
* @notapi
*/
void i2c_lld_master_stop(I2CDriver *i2cp) {
}
/**
* @brief Sends a restart bit.
* @details Restart bits are required by some types of I2C transactions.
*
* @param[in] i2cp pointer to the @p I2CDriver object
*
* @notapi
*/
void i2c_lld_master_restart(I2CDriver *i2cp) {
}
/**
* @brief Master transmission.
*
* @param[in] i2cp pointer to the @p I2CDriver object
* @param[in] n number of bytes to be transmitted
* @param[in] txbuf transmit data buffer pointer
*
* @notapi
*/
void i2c_lld_master_transmit(I2CDriver *i2cp, size_t n,
const uint8_t *txbuf) {
}
/**
* @brief Master receive.
*
* @param[in] i2cp pointer to the @p I2CDriver object
* @param[in] n number of bytes to be transmitted
* @param[in] rxbuf receive data buffer pointer
*
* @notapi
*/
void i2c_lld_master_receive(I2CDriver *i2cp, size_t n, uint8_t *rxbuf) {
}
#endif /* HAL_USE_I2C */
/** @} */
|
