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
|
/*
ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file ext.h
* @brief EXT Driver macros and structures.
*
* @addtogroup EXT
* @{
*/
#ifndef _EXT_H_
#define _EXT_H_
#if (HAL_USE_EXT == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name EXT channel modes
* @{
*/
#define EXT_CH_MODE_EDGES_MASK 3U /**< @brief Mask of edges field. */
#define EXT_CH_MODE_DISABLED 0U /**< @brief Channel disabled. */
#define EXT_CH_MODE_RISING_EDGE 1U /**< @brief Rising edge callback. */
#define EXT_CH_MODE_FALLING_EDGE 2U /**< @brief Falling edge callback. */
#define EXT_CH_MODE_BOTH_EDGES 3U /**< @brief Both edges callback. */
#define EXT_CH_MODE_AUTOSTART 4U /**< @brief Channel started
automatically on driver start. */
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Driver state machine possible states.
*/
typedef enum {
EXT_UNINIT = 0, /**< Not initialized. */
EXT_STOP = 1, /**< Stopped. */
EXT_ACTIVE = 2 /**< Active. */
} extstate_t;
/**
* @brief Type of a structure representing a EXT driver.
*/
typedef struct EXTDriver EXTDriver;
#include "ext_lld.h"
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @name Macro Functions
* @{
*/
/**
* @brief Enables an EXT channel.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be enabled
*
* @iclass
*/
#define extChannelEnableI(extp, channel) ext_lld_channel_enable(extp, channel)
/**
* @brief Disables an EXT channel.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be disabled
*
* @iclass
*/
#define extChannelDisableI(extp, channel) ext_lld_channel_disable(extp, channel)
/**
* @brief Changes the operation mode of a channel.
* @note This function attempts to write over the current configuration
* structure that must have been not declared constant. This
* violates the @p const qualifier in @p extStart() but it is
* intentional. This function cannot be used if the configuration
* structure is declared @p const.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be changed
* @param[in] extcp new configuration for the channel
*
* @api
*/
#define extSetChannelMode(extp, channel, extcp) { \
osalSysLock(); \
extSetChannelModeI(extp, channel, extcp); \
osalSysUnlock(); \
}
/** @} */
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void extInit(void);
void extObjectInit(EXTDriver *extp);
void extStart(EXTDriver *extp, const EXTConfig *config);
void extStop(EXTDriver *extp);
void extChannelEnable(EXTDriver *extp, expchannel_t channel);
void extChannelDisable(EXTDriver *extp, expchannel_t channel);
void extSetChannelModeI(EXTDriver *extp,
expchannel_t channel,
const EXTChannelConfig *extcp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_EXT == TRUE */
#endif /* _EXT_H_ */
/** @} */
|
