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
|
/**
*
* \file
*
* \brief SAM Frequency Meter driver.
*
* This file defines a useful set of functions for the FREQM on SAM devices.
*
* Copyright (c) 2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
*/
#ifndef FREQM_CALLBACK_H_INCLUDED
#define FREQM_CALLBACK_H_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
#include <compiler.h>
#include <system_interrupt.h>
/**
* \addtogroup asfdoc_sam0_freqm_group
*
* @{
*/
/** FREQM callback type. */
enum freqm_callback_type {
/** Measurement done callback.*/
FREQM_CALLBACK_MEASURE_DONE = 0,
};
/** \name Callback Configuration and Initialization
* @{
*/
enum status_code freqm_register_callback(
struct freqm_module *const module,
freqm_callback_t callback_func,
enum freqm_callback callback_type);
enum status_code freqm_unregister_callback(
struct freqm_module *module,
enum freqm_callback callback_type);
/** @} */
/** \name Callback Enabling and Disabling
* @{
*/
/**
* \brief Enable an FREQM callback.
*
* \param[in,out] module Pointer to the software instance struct
* \param[in] type Callback source type
*
* \return Status of the callback enable operation.
* \retval STATUS_OK The callback was enabled successfully
* \retval STATUS_ERR_INVALID_ARG If an invalid callback type was supplied
*/
static inline enum status_code freqm_enable_callback(struct freqm_module *const module,
const enum freqm_callback_type type)
{
/* Sanity check arguments */
Assert(module);
if (type == FREQM_CALLBACK_MEASURE_DONE){
module->hw->INTENSET.reg = FREQM_INTENSET_DONE;
} else {
Assert(false);
return STATUS_ERR_INVALID_ARG;
}
system_interrupt_enable(SYSTEM_INTERRUPT_MODULE_FREQM);
return STATUS_OK;
}
/**
* \brief Disable an FREQM callback.
*
* \param[in,out] module Pointer to the software instance struct
* \param[in] type Callback source type
*
* \return Status of the callback enable operation.
* \retval STATUS_OK The callback was enabled successfully
* \retval STATUS_ERR_INVALID_ARG If an invalid callback type was supplied
*/
static inline enum status_code freqm_disable_callback(struct freqm_module *const module,
const enum freqm_callback_type type)
{
/* Sanity check arguments */
Assert(module);
if (type == FREQM_CALLBACK_MEASURE_DONE){
module->hw->INTENCLR.reg = FREQM_INTENCLR_DONE;
} else {
Assert(false);
return STATUS_ERR_INVALID_ARG;
}
system_interrupt_disable(SYSTEM_INTERRUPT_MODULE_FREQM);
return STATUS_OK;
}
/** @} */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* FREQM_CALLBACK_H_INCLUDED */
|
