blob: f1085d537d82fa7e122451ba566671e2bdf72866 (
plain) (
blame)
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
|
/**
* @file rtems/rtems/intr.h
*
* @brief Header file for the Interrupt Manager.
*
* This include file contains all the constants and structures associated with
* the Interrupt Manager.
*/
/* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_RTEMS_INTR_H
#define _RTEMS_RTEMS_INTR_H
#ifdef __cplusplus
extern "C" {
#endif
#include <rtems/score/isr.h>
/**
* @defgroup ClassicINTR Interrupts
*
* @ingroup ClassicRTEMS
*
* This encapsulates functionality which XXX
*/
/**@{*/
/**
* @brief Interrupt level type.
*/
typedef ISR_Level rtems_interrupt_level;
/**
* @brief Control block type used to manage the vectors.
*/
typedef ISR_Vector_number rtems_vector_number;
/**
* @brief Return type for interrupt handler.
*/
typedef ISR_Handler rtems_isr;
#if (CPU_SIMPLE_VECTORED_INTERRUPTS == FALSE)
typedef ISR_Handler_entry rtems_isr_entry;
#else
/**
* @brief Interrupt handler type.
*
* @see rtems_interrupt_catch()
*/
typedef rtems_isr ( *rtems_isr_entry )(
rtems_vector_number
);
/**
* @brief Implementation of the rtems_interrupt_catch directive.
*
* This directive installs @a new_isr_handler as the RTEMS interrupt service
* routine for the interrupt vector with number @a vector. The previous RTEMS
* interrupt service routine is returned in @a old_isr_handler.
*/
rtems_status_code rtems_interrupt_catch(
rtems_isr_entry new_isr_handler,
rtems_vector_number vector,
rtems_isr_entry *old_isr_handler
);
#endif
/**
* @brief Disables all maskable interrupts and returns the previous level in
* @a _isr_cookie.
*
* @note The interrupt level shall be of type @ref rtems_interrupt_level.
*/
#define rtems_interrupt_disable( _isr_cookie ) \
_ISR_Disable(_isr_cookie)
/**
* @brief Enables maskable interrupts to the level indicated by @a
* _isr_cookie.
*
* @note The interrupt level shall be of type @ref rtems_interrupt_level.
*/
#define rtems_interrupt_enable( _isr_cookie ) \
_ISR_Enable(_isr_cookie)
/**
* @brief Temporarily enables maskable interrupts to the level in @a
* _isr_cookie before redisabling them.
*
* @note The interrupt level shall be of type @ref rtems_interrupt_level.
*/
#define rtems_interrupt_flash( _isr_cookie ) \
_ISR_Flash(_isr_cookie)
/**
* @brief Returns true if the processor is currently servicing an interrupt
* and false otherwise.
*
* A return value of true indicates that the caller is an interrupt service
* routine and @b not a thread. The directives available to an interrupt
* service routine are restricted.
*/
#define rtems_interrupt_is_in_progress() \
_ISR_Is_in_progress()
/**
* @brief This routine generates an interrupt.
*
* @note No implementation.
*/
#define rtems_interrupt_cause( _interrupt_to_cause )
/**
* @brief This routine clears the specified interrupt.
*
* @note No implementation.
*/
#define rtems_interrupt_clear( _interrupt_to_clear )
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of include file */
|
