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
|
/**
* \file
*
* \brief Global interrupt management for 8-bit AVR
*
* Copyright (C) 2010-2016 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 UTILS_INTERRUPT_INTERRUPT_H
#define UTILS_INTERRUPT_INTERRUPT_H
#include <compiler.h>
#include <parts.h>
/**
* \weakgroup interrupt_group
*
* @{
*/
#ifdef ISR_CUSTOM_H
# include ISR_CUSTOM_H
#else
/**
* \def ISR
* \brief Define service routine for specified interrupt vector
*
* Usage:
* \code
ISR(FOO_vect)
{
...
}
\endcode
*
* \param vect Interrupt vector name as found in the device header files.
*/
#if defined(__DOXYGEN__)
# define ISR(vect)
#elif defined(__GNUC__)
# include <avr/interrupt.h>
#elif defined(__ICCAVR__)
# define __ISR(x) _Pragma(#x)
# define ISR(vect) __ISR(vector=vect) __interrupt void handler_##vect(void)
#endif
#endif // ISR_CUSTOM_H
#if XMEGA
/**
* \brief Initialize interrupt vectors
* Enables all interrupt levels, with vectors located in the application section
* and fixed priority scheduling.
*/
#define irq_initialize_vectors() \
PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
#elif MEGA_RF
#define irq_initialize_vectors()
#endif
#ifdef __GNUC__
# define cpu_irq_enable() sei()
# define cpu_irq_disable() cli()
#else
# define cpu_irq_enable() __enable_interrupt()
# define cpu_irq_disable() __disable_interrupt()
#endif
typedef uint8_t irqflags_t;
static inline irqflags_t cpu_irq_save(void)
{
volatile irqflags_t flags = SREG;
cpu_irq_disable();
return flags;
}
static inline void cpu_irq_restore(irqflags_t flags)
{
barrier();
SREG = flags;
}
static inline bool cpu_irq_is_enabled_flags(irqflags_t flags)
{
#if XMEGA
# ifdef __GNUC__
return flags & CPU_I_bm;
# else
return flags & I_bm;
# endif
#elif MEGA || TINY
return flags & (1 << SREG_I);
#endif
}
#define cpu_irq_is_enabled() cpu_irq_is_enabled_flags(SREG)
//! @}
/**
* \weakgroup interrupt_deprecated_group
* @{
*/
// Deprecated definitions.
#define Enable_global_interrupt() cpu_irq_enable()
#define Disable_global_interrupt() cpu_irq_disable()
#define Is_global_interrupt_enabled() cpu_irq_is_enabled()
//! @}
#endif /* UTILS_INTERRUPT_INTERRUPT_H */
|
