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
|
/* $OpenBSD: sbusvar.h,v 1.3 2001/08/20 19:34:10 jason Exp $ */
/* $NetBSD: sbusvar.h,v 1.11 2000/11/01 06:18:45 eeh Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 _SBUS_VAR_H
#define _SBUS_VAR_H
struct sbus_softc;
/*
* S-bus variables.
*/
struct sbusdev {
struct device *sd_dev; /* backpointer to generic */
struct sbusdev *sd_bchain; /* forward link in bus chain */
void (*sd_reset) __P((struct device *));
};
/* Device register space description */
struct sbus_reg {
u_int32_t sbr_slot;
u_int32_t sbr_offset;
u_int32_t sbr_size;
};
/* Interrupt information */
struct sbus_intr {
u_int32_t sbi_pri; /* priority (IPL) */
u_int32_t sbi_vec; /* vector (always 0?) */
};
/* Address translation accross busses */
struct sbus_range {
u_int32_t cspace; /* Client space */
u_int32_t coffset; /* Client offset */
u_int32_t pspace; /* Parent space */
u_int32_t poffset; /* Parent offset */
u_int32_t size; /* Size in bytes of this range */
};
/*
* Sbus driver attach arguments.
*/
struct sbus_attach_args {
int sa_placeholder; /* for obio attach args sharing */
bus_space_tag_t sa_bustag;
bus_dma_tag_t sa_dmatag;
char *sa_name; /* PROM node name */
int sa_node; /* PROM handle */
struct sbus_reg *sa_reg; /* Sbus register space for device */
int sa_nreg; /* Number of Sbus register spaces */
#define sa_slot sa_reg[0].sbr_slot
#define sa_offset sa_reg[0].sbr_offset
#define sa_size sa_reg[0].sbr_size
struct sbus_intr *sa_intr; /* Sbus interrupts for device */
int sa_nintr; /* Number of interrupts */
#define sa_pri sa_intr[0].sbi_pri
u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */
int sa_npromvaddrs; /* Number of PROM VAs */
#define sa_promvaddr sa_promvaddrs[0]
int sa_frequency; /* SBus clockrate */
struct bootpath *sa_bp; /* boot path */
};
/* sbus_attach_internal() is also used from obio.c */
void sbus_attach_common __P((struct sbus_softc *, char *, int,
const char * const *));
int sbus_print __P((void *, const char *));
void sbus_establish __P((struct sbusdev *, struct device *));
int sbus_setup_attach_args __P((
struct sbus_softc *,
bus_space_tag_t,
bus_dma_tag_t,
int, /*node*/
struct sbus_attach_args *));
void sbus_destroy_attach_args __P((struct sbus_attach_args *));
#define sbus_bus_map(t, bt, a, s, f, v, hp) \
bus_space_map2(t, bt, a, s, f, v, hp)
#if notyet
/* variables per Sbus */
struct sbus_softc {
struct device sc_dev; /* base device */
bus_space_tag_t sc_bustag;
bus_dma_tag_t sc_dmatag;
int sc_clockfreq; /* clock frequency (in Hz) */
struct sbusdev *sc_sbdev; /* list of all children */
struct sbus_range *sc_range;
int sc_nrange;
int sc_burst; /* burst transfer sizes supported */
/* machdep stuff follows here */
int *sc_intr2ipl; /* Interrupt level translation */
int *sc_intr_compat; /* `intr' property to sbus compat */
};
#endif
/*
* PROM-reported DMA burst sizes for the SBus
*/
#define SBUS_BURST_1 0x1
#define SBUS_BURST_2 0x2
#define SBUS_BURST_4 0x4
#define SBUS_BURST_8 0x8
#define SBUS_BURST_16 0x10
#define SBUS_BURST_32 0x20
#define SBUS_BURST_64 0x40
/* We use #defined(SUN4*) here while the ports are in flux */
#if defined(SUN4) || defined(SUN4C) || defined(SUN4M)
#include <sparc/dev/sbusvar.h>
#elif defined(SUN4U)
#include <sparc64/dev/sbusvar.h>
#endif
#endif /* _SBUS_VAR_H */
|
