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
|
/* $OpenBSD: intr.h,v 1.4 2007/06/21 04:37:54 miod Exp $ */
/* $NetBSD: intr.h,v 1.22 2006/01/24 23:51:42 uwe Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _SH_INTR_H_
#define _SH_INTR_H_
#ifdef _KERNEL
#include <sys/device.h>
#include <sys/evcount.h>
#include <sys/lock.h>
#include <sys/queue.h>
#include <sh/psl.h>
/* Interrupt sharing types. */
#define IST_NONE 0 /* none */
#define IST_PULSE 1 /* pulsed */
#define IST_EDGE 2 /* edge-triggered */
#define IST_LEVEL 3 /* level-triggered */
/* Interrupt priority levels */
#define _IPL_N 15
#define _IPL_NSOFT 4
#define IPL_NONE 0 /* nothing */
#define IPL_SOFT 1
#define IPL_SOFTCLOCK 2 /* timeouts */
#define IPL_SOFTNET 3 /* protocol stacks */
#define IPL_SOFTSERIAL 4 /* serial */
#define IPL_SOFTNAMES { \
"misc", \
"clock", \
"net", \
"serial", \
}
struct intc_intrhand {
int (*ih_func)(void *);
void *ih_arg;
int ih_level; /* SR.I[0:3] value */
int ih_evtcode; /* INTEVT or INTEVT2(SH7709/SH7709A) */
int ih_idx; /* evtcode -> intrhand mapping */
int ih_irq;
struct evcount ih_count;
const char *ih_name;
};
/* from 0x200 by 0x20 -> from 0 by 1 */
#define EVTCODE_TO_MAP_INDEX(x) (((x) >> 5) - 0x10)
#define EVTCODE_TO_IH_INDEX(x) \
__intc_evtcode_to_ih[EVTCODE_TO_MAP_INDEX(x)]
#define EVTCODE_IH(x) (&__intc_intrhand[EVTCODE_TO_IH_INDEX(x)])
extern int8_t __intc_evtcode_to_ih[];
extern struct intc_intrhand __intc_intrhand[];
void intc_init(void);
void *intc_intr_establish(int, int, int, int (*)(void *), void *, const char *);
void intc_intr_disestablish(void *);
void intc_intr_enable(int);
void intc_intr_disable(int);
void intc_intr(int, int, int);
void intpri_intr_priority(int evtcode, int level);
/*
* software simulated interrupt
*/
struct sh_soft_intrhand {
TAILQ_ENTRY(sh_soft_intrhand) sih_q;
struct sh_soft_intr *sih_intrhead;
void (*sih_fn)(void *);
void *sih_arg;
int sih_pending;
};
struct sh_soft_intr {
TAILQ_HEAD(, sh_soft_intrhand) softintr_q;
struct simplelock softintr_slock;
unsigned long softintr_ipl;
};
#define softintr_schedule(arg) \
do { \
struct sh_soft_intrhand *__sih = (arg); \
struct sh_soft_intr *__si = __sih->sih_intrhead; \
int __s; \
\
__s = _cpu_intr_suspend(); \
simple_lock(&__si->softintr_slock); \
if (__sih->sih_pending == 0) { \
TAILQ_INSERT_TAIL(&__si->softintr_q, __sih, sih_q); \
__sih->sih_pending = 1; \
setsoft(__si->softintr_ipl); \
} \
simple_unlock(&__si->softintr_slock); \
_cpu_intr_resume(__s); \
} while (/*CONSTCOND*/0)
void softintr_init(void);
void *softintr_establish(int, void (*)(void *), void *);
void softintr_disestablish(void *);
void softintr_dispatch(int);
void setsoft(int);
/* XXX For legacy software interrupts. */
extern struct sh_soft_intrhand *softnet_intrhand;
#define setsoftnet() softintr_schedule(softnet_intrhand)
#endif /* _KERNEL */
#endif /* !_SH_INTR_H_ */
|
