]> CyberLeo.Net >> Repos - FreeBSD/releng/10.0.git/blob - sys/pc98/cbus/syscons_cbus.c
- Copy stable/10 (r259064) to releng/10.0 as part of the
[FreeBSD/releng/10.0.git] / sys / pc98 / cbus / syscons_cbus.c
1 /*-
2  * Copyright (c) 1999 FreeBSD(98) Porting Team.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer as
10  *    the first lines of this file unmodified.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include "opt_syscons.h"
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/bus.h>
37 #include <sys/cons.h>
38 #include <sys/consio.h>
39 #include <sys/sysctl.h>
40
41 #include <machine/clock.h>
42
43 #include <pc98/pc98/pc98_machdep.h>
44
45 #include <dev/syscons/syscons.h>
46
47 #include <isa/isavar.h>
48
49 static devclass_t       sc_devclass;
50
51 static sc_softc_t       main_softc;
52
53 static void
54 scidentify(driver_t *driver, device_t parent)
55 {
56
57         BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
58 }
59
60 static int
61 scprobe(device_t dev)
62 {
63
64         /* No pnp support */
65         if (isa_get_vendorid(dev))
66                 return (ENXIO);
67
68         device_set_desc(dev, "System console");
69         return (sc_probe_unit(device_get_unit(dev), device_get_flags(dev)));
70 }
71
72 static int
73 scattach(device_t dev)
74 {
75
76         return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
77 }
78
79 int
80 sc_max_unit(void)
81 {
82
83         return (devclass_get_maxunit(sc_devclass));
84 }
85
86 sc_softc_t
87 *sc_get_softc(int unit, int flags)
88 {
89         sc_softc_t *sc;
90
91         if (unit < 0)
92                 return (NULL);
93         if ((flags & SC_KERNEL_CONSOLE) != 0) {
94                 /* FIXME: clear if it is wired to another unit! */
95                 sc = &main_softc;
96         } else {
97                 sc = device_get_softc(devclass_get_device(sc_devclass, unit));
98                 if (sc == NULL)
99                         return (NULL);
100         }
101         sc->unit = unit;
102         if ((sc->flags & SC_INIT_DONE) == 0) {
103                 sc->keyboard = -1;
104                 sc->adapter = -1;
105                 sc->mouse_char = SC_MOUSE_CHAR;
106         }
107         return (sc);
108 }
109
110 sc_softc_t
111 *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
112 {
113         sc_softc_t *sc;
114         int i;
115         int units;
116
117         sc = &main_softc;
118         if ((adp == NULL || adp == sc->adp) &&
119             (kbd == NULL || kbd == sc->kbd))
120                 return (sc);
121         units = devclass_get_maxunit(sc_devclass);
122         for (i = 0; i < units; ++i) {
123                 sc = device_get_softc(devclass_get_device(sc_devclass, i));
124                 if (sc == NULL)
125                         continue;
126                 if ((adp == NULL || adp == sc->adp) &&
127                     (kbd == NULL || kbd == sc->kbd))
128                         return (sc);
129         }
130         return (NULL);
131 }
132
133 int
134 sc_get_cons_priority(int *unit, int *flags)
135 {
136         const char *at;
137         int f, u;
138
139         *unit = -1;
140         for (u = 0; u < 16; u++) {
141                 if (resource_disabled(SC_DRIVER_NAME, u))
142                         continue;
143                 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
144                         continue;
145                 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
146                         f = 0;
147                 if (f & SC_KERNEL_CONSOLE) {
148                         /* the user designates this unit to be the console */
149                         *unit = u;
150                         *flags = f;
151                         break;
152                 }
153                 if (*unit < 0) {
154                         /* ...otherwise remember the first found unit */
155                         *unit = u;
156                         *flags = f;
157                 }
158         }
159         if (*unit < 0) {
160                 *unit = 0;
161                 *flags = 0;
162         }
163         return (CN_INTERNAL);
164 }
165
166 void
167 sc_get_bios_values(bios_values_t *values)
168 {
169         values->cursor_start = 15;
170         values->cursor_end = 16;
171         values->shift_state = 0;
172         values->bell_pitch = BELL_PITCH;
173 }
174
175 int
176 sc_tone(int herz)
177 {
178
179         if (herz) {
180                 if (timer_spkr_acquire())
181                         return (EBUSY);
182                 timer_spkr_setfreq(herz);
183         } else
184                 timer_spkr_release();
185
186         return (0);
187 }
188
189 static device_method_t sc_methods[] = {
190         DEVMETHOD(device_identify,      scidentify),
191         DEVMETHOD(device_probe,         scprobe),
192         DEVMETHOD(device_attach,        scattach),
193         { 0, 0 }
194 };
195
196 static driver_t sc_driver = {
197         SC_DRIVER_NAME,
198         sc_methods,
199         sizeof(sc_softc_t),
200 };
201
202 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);