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
49static devclass_t	sc_devclass;
50
51static sc_softc_t	main_softc;
52
53static void
54scidentify(driver_t *driver, device_t parent)
55{
56
57	BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
58}
59
60static int
61scprobe(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
72static int
73scattach(device_t dev)
74{
75
76	return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
77}
78
79int
80sc_max_unit(void)
81{
82
83	return (devclass_get_maxunit(sc_devclass));
84}
85
86sc_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
110sc_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
133int
134sc_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
166void
167sc_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
175int
176sc_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
189static 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
196static driver_t sc_driver = {
197	SC_DRIVER_NAME,
198	sc_methods,
199	sizeof(sc_softc_t),
200};
201
202DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);
203