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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/* $OpenBSD: isavar.h,v 1.13 1996/06/22 23:18:43 pefo Exp $ */
/* $NetBSD: isavar.h,v 1.23 1996/05/08 23:32:31 thorpej Exp $ */
/*
* Copyright (c) 1995 Chris G. Demetriou
* Copyright (c) 1992 Berkeley Software Design, 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 Berkeley Software
* Design, Inc.
* 4. The name of Berkeley Software Design must not be used to endorse
* or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``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 BERKELEY SOFTWARE DESIGN, INC. 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.
*
* BSDI Id: isavar.h,v 1.5 1992/12/01 18:06:00 karels Exp
*/
#ifndef _DEV_ISA_ISAVAR_H_
#define _DEV_ISA_ISAVAR_H_
/*
* Definitions for ISA autoconfiguration.
*/
#include <sys/queue.h>
#include <machine/bus.h>
/*
* Structures and definitions needed by the machine-dependent header.
*/
struct isabus_attach_args;
#if (alpha + amiga + i386 + arc + riscpc != 1)
ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE.
#endif
#if alpha
#include <alpha/isa/isa_machdep.h>
#endif
#if amiga
#include <amiga/isa/isa_machdep.h>
#endif
#if i386
#include <i386/isa/isa_machdep.h>
#endif
#if arc
#include <arc/isa/isa_machdep.h>
#endif
#if riscpc
#include <riscpc/isa/isa_machdep.h>
#endif
/*
* ISA bus attach arguments
*/
struct isabus_attach_args {
char *iba_busname; /* XXX should be common */
bus_chipset_tag_t iba_bc; /* XXX should be common */
isa_chipset_tag_t iba_ic;
};
/*
* ISA driver attach arguments
*/
struct isa_attach_args {
bus_chipset_tag_t ia_bc;
isa_chipset_tag_t ia_ic;
int ia_iobase; /* base i/o address */
int ia_iosize; /* span of ports used */
int ia_irq; /* interrupt request */
int ia_drq; /* DMA request */
int ia_maddr; /* physical i/o mem addr */
u_int ia_msize; /* size of i/o memory */
void *ia_aux; /* driver specific */
bus_io_handle_t ia_delayioh; /* i/o handle for `delay port' */
};
#define IOBASEUNK -1 /* i/o address is unknown */
#define IRQUNK -1 /* interrupt request line is unknown */
#define DRQUNK -1 /* DMA request line is unknown */
#define MADDRUNK -1 /* shared memory address is unknown */
/*
* Per-device ISA variables
*/
struct isadev {
struct device *id_dev; /* back pointer to generic */
TAILQ_ENTRY(isadev)
id_bchain; /* bus chain */
};
/*
* ISA master bus
*/
struct isa_softc {
struct device sc_dev; /* base device */
TAILQ_HEAD(, isadev)
sc_subdevs; /* list of all children */
bus_chipset_tag_t sc_bc;
isa_chipset_tag_t sc_ic;
/*
* This i/o handle is used to map port 0x84, which is
* read to provide a 1.25us delay. This i/o handle
* is mapped in isaattach(), and exported to drivers
* via isa_attach_args.
*/
bus_io_handle_t sc_delayioh;
};
#define cf_iobase cf_loc[0]
#define cf_iosize cf_loc[1]
#define cf_maddr cf_loc[2]
#define cf_msize cf_loc[3]
#define cf_irq cf_loc[4]
#define cf_drq cf_loc[5]
/*
* ISA interrupt handler manipulation.
*
* To establish an ISA interrupt handler, a driver calls isa_intr_establish()
* with the interrupt number, type, level, function, and function argument of
* the interrupt it wants to handle. Isa_intr_establish() returns an opaque
* handle to an event descriptor if it succeeds, and invokes panic() if it
* fails. (XXX It should return NULL, then drivers should handle that, but
* what should they do?) Interrupt handlers should return 0 for "interrupt
* not for me", 1 for "I took care of it", or -1 for "I guess it was mine,
* but I wasn't expecting it."
*
* To remove an interrupt handler, the driver calls isa_intr_disestablish()
* with the handle returned by isa_intr_establish() for that handler.
*/
/* ISA interrupt sharing types */
void isascan __P((struct device *parent, void *match));
char *isa_intr_typename __P((int type));
#ifdef NEWCONFIG
/*
* Establish a device as being on the ISA bus (XXX NOT IMPLEMENTED).
*/
void isa_establish __P((struct isadev *, struct device *));
#endif
#endif /* _DEV_ISA_ISAVAR_H_ */
|
