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
|
/*
* Copyright (c) 2015 Intel Corporation.
*
* 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.
*/
#ifndef _AIO_COMPARATOR_H_
#define _AIO_COMPARATOR_H_
#ifdef __cplusplus
extern "C" {
#endif
enum aio_cmp_ref {
AIO_CMP_REF_A, /**< Use reference A. */
AIO_CMP_REF_B, /**< Use reference B. */
};
enum aio_cmp_polarity {
AIO_CMP_POL_RISE, /**< Match on rising edge. */
AIO_CMP_POL_FALL, /**< Match on falling edge. */
};
typedef void (*aio_cmp_cb)(void *);
typedef int (*aio_cmp_api_disable)(struct device *dev, uint8_t index);
typedef int (*aio_cmp_api_configure)(struct device *dev, uint8_t index,
enum aio_cmp_polarity polarity, enum aio_cmp_ref refsel,
aio_cmp_cb cb, void *param);
struct aio_cmp_driver_api {
aio_cmp_api_disable disable;
aio_cmp_api_configure configure;
};
/**
* @brief Disable a particular comparator.
*
* This disables a comparator so that it no longer triggers interrupts.
*
* @param dev Device struct
* @param index The index of the comparator to disable
*
* @return 0 if successful, otherwise failed.
*/
static inline int aio_cmp_disable(struct device *dev, uint8_t index)
{
const struct aio_cmp_driver_api *api = dev->driver_api;
return api->disable(dev, index);
}
/**
* @brief Configure and enable a particular comparator.
*
* This performs configuration and enable a comparator, so that it will
* generate interrupts when conditions are met.
*
* @param dev Device struct
* @param index The index of the comparator to disable
* @param polarity Match polarity (e.g. rising or falling)
* @param refsel Reference for trigger
* @param cb Function callback (aio_cmp_cb)
* @param param Parameters to be passed to callback
*
* @return 0 if successful, otherwise failed.
*/
static inline int aio_cmp_configure(struct device *dev, uint8_t index,
enum aio_cmp_polarity polarity,
enum aio_cmp_ref refsel,
aio_cmp_cb cb, void *param)
{
const struct aio_cmp_driver_api *api = dev->driver_api;
return api->configure(dev, index, polarity, refsel, cb, param);
}
#ifdef __cplusplus
}
#endif
#endif /* _AIO_COMPARATOR_H_ */
|
