blob: ca14577f003cff40e63ab2dfcd54dc6ac5aee584 (
plain)
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
|
/*
ChibiOS/RT - Copyright (C) 2006-2007 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/adc_lld.h
* @brief ADC Driver subsystem low level driver header template
* @addtogroup ADC_LLD
* @{
*/
#ifndef _ADC_LLD_H_
#define _ADC_LLD_H_
#if CH_HAL_USE_ADC
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief ADC sample data type.
*/
typedef uint16_t adcsample_t;
/**
* @brief Channels number in a conversion group.
*/
typedef uint16_t adc_channels_num_t;
/**
* @brief ADC notification callback type.
* @param[in] buffer pointer to the most recent samples data
* @param[in] n number of buffer rows available starting from @p buffer
*/
typedef void (*adccallback_t)(adcsample_t *buffer, size_t n);
/**
* @brief Conversion group configuration structure.
* @details This implementation-dependent structure describes a conversion
* operation.
*/
typedef struct {
/**
* @brief Enables the circular buffer mode for the group.
*/
bool_t acg_circular;
/**
* @brief Number of the analog channels belonging to the conversion group.
*/
adc_channels_num_t acg_num_channels;
/* End of the mandatory fields.*/
} ADCConversionGroup;
/**
* @brief Driver configuration structure.
* @note It could be empty on some architectures.
*/
typedef struct {
} ADCConfig;
/**
* @brief Structure representing an ADC driver.
*/
typedef struct {
/**
* @brief Driver state.
*/
adcstate_t ad_state;
/**
* @brief Current configuration data.
*/
const ADCConfig *ad_config;
/**
* @brief Synchronization semaphore.
*/
Semaphore ad_sem;
/**
* @brief Current callback function or @p NULL.
*/
adccallback_t ad_callback;
/**
* @brief Current samples buffer pointer or @p NULL.
*/
adcsample_t *ad_samples;
/**
* @brief Current samples buffer depth or @p 0.
*/
size_t ad_depth;
/**
* @brief Current conversion group pointer or @p NULL.
*/
const ADCConversionGroup *ad_grpp;
/* End of the mandatory fields.*/
} ADCDriver;
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void adc_lld_init(void);
void adc_lld_start(ADCDriver *adcp);
void adc_lld_stop(ADCDriver *adcp);
void adc_lld_start_conversion(ADCDriver *adcp);
void adc_lld_stop_conversion(ADCDriver *adcp);
#ifdef __cplusplus
}
#endif
#endif /* CH_HAL_USE_ADC */
#endif /* _ADC_LLD_H_ */
/** @} */
|
