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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/* $OpenBSD: sti_sgc.c,v 1.8 2006/04/20 20:26:52 deraadt Exp $ */
/*
* Copyright (c) 2005, Miodrag Vallat
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <hp300/dev/sgcreg.h>
#include <hp300/dev/sgcvar.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/ic/stireg.h>
#include <dev/ic/stivar.h>
#include <uvm/uvm_extern.h>
void sti_sgc_attach(struct device *, struct device *, void *);
int sti_sgc_match(struct device *, void *, void *);
int sti_sgc_probe(bus_space_tag_t, int);
struct cfattach sti_sgc_ca = {
sizeof(struct sti_softc), sti_sgc_match, sti_sgc_attach
};
int
sti_sgc_match(struct device *parent, void *match, void *aux)
{
struct sgc_attach_args *saa = aux;
bus_space_tag_t iot;
/*
* If we already probed it succesfully as a console device, go ahead,
* since we will not be able to bus_space_map() again.
*/
if (SGC_SLOT_TO_CONSCODE(saa->saa_slot) == conscode)
return (1);
iot = HP300_BUS_TAG(HP300_BUS_SGC, saa->saa_slot);
return (sti_sgc_probe(iot, saa->saa_slot));
}
void
sti_sgc_attach(struct device *parent, struct device *self, void *aux)
{
struct sti_softc *sc = (void *)self;
struct sgc_attach_args *saa = aux;
bus_space_tag_t iot;
bus_space_handle_t ioh;
u_int romend;
/*
* If we already probed it succesfully as a console device, go ahead,
* since we will not be able to bus_space_map() again.
*/
if (SGC_SLOT_TO_CONSCODE(saa->saa_slot) == conscode) {
extern struct sti_screen stifb_cn;
sc->sc_flags |= STI_CONSOLE | STI_ATTACHED;
sc->sc_scr = &stifb_cn;
sti_describe(sc);
} else {
iot = HP300_BUS_TAG(HP300_BUS_SGC, saa->saa_slot);
sc->base = (bus_addr_t)sgc_slottopa(saa->saa_slot);
if (bus_space_map(iot, sc->base, PAGE_SIZE, 0, &ioh)) {
printf(": can't map frame buffer");
return;
}
/*
* Compute real PROM size
*/
romend = sti_rom_size(iot, ioh);
bus_space_unmap(iot, ioh, PAGE_SIZE);
if (bus_space_map(iot, sc->base, romend, 0, &ioh)) {
printf(": can't map frame buffer");
return;
}
sc->memt = sc->iot = iot;
sc->romh = ioh;
sti_attach_common(sc, STI_CODEBASE_M68K);
}
sti_end_attach(sc);
}
int
sti_sgc_probe(bus_space_tag_t iot, int slot)
{
bus_space_handle_t ioh;
int devtype;
if (bus_space_map(iot, (bus_addr_t)sgc_slottopa(slot),
PAGE_SIZE, 0, &ioh))
return (0);
devtype = bus_space_read_1(iot, ioh, 3);
bus_space_unmap(iot, ioh, PAGE_SIZE);
/*
* This might not be reliable enough. On the other hand, non-STI
* SGC cards will apparently not initialize in an hp300, to the
* point of not even answering bus probes (checked with an
* Harmony/FDDI SGC card).
*/
if (devtype != STI_DEVTYPE1 && devtype != STI_DEVTYPE4)
return (0);
return (1);
}
/*
* Console code
*/
int sti_console_scan(int);
void sticninit(void);
int
sti_console_scan(int slot)
{
bus_space_tag_t iot;
iot = HP300_BUS_TAG(HP300_BUS_SGC, slot);
return (sti_sgc_probe(iot, slot));
}
void
sticninit()
{
extern struct sti_screen stifb_cn;
bus_space_tag_t iot;
bus_addr_t base;
/*
* We are not interested by the *first* console pass.
*/
if (consolepass == 0)
return;
iot = HP300_BUS_TAG(HP300_BUS_SGC, CONSCODE_TO_SGC_SLOT(conscode));
base = (bus_addr_t)sgc_slottopa(CONSCODE_TO_SGC_SLOT(conscode));
sti_cnattach(&stifb_cn, iot, base, STI_CODEBASE_M68K);
/*
* Since the copyright notice could not be displayed before,
* display it again now.
*/
printf("%s\n", copyright);
}
|
