2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer as
12 * the first lines of this file unmodified.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include "opt_syscons.h"
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
41 #include <sys/consio.h>
42 #include <sys/sysctl.h>
44 #if defined(__i386__) || defined(__amd64__)
46 #include <machine/clock.h>
47 #include <machine/md_var.h>
48 #include <machine/pc/bios.h>
52 #include <vm/vm_param.h>
54 #define BIOS_CLKED (1 << 6)
55 #define BIOS_NLKED (1 << 5)
56 #define BIOS_SLKED (1 << 4)
61 #include <dev/syscons/syscons.h>
63 #include <isa/isavar.h>
65 static devclass_t sc_devclass;
67 static sc_softc_t main_softc;
70 scidentify(driver_t *driver, device_t parent)
73 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
81 if (isa_get_vendorid(dev))
84 device_set_desc(dev, "System console");
85 return (sc_probe_unit(device_get_unit(dev), device_get_flags(dev)));
89 scattach(device_t dev)
92 return (sc_attach_unit(device_get_unit(dev), device_get_flags(dev) |
100 return (devclass_get_maxunit(sc_devclass));
104 *sc_get_softc(int unit, int flags)
110 if ((flags & SC_KERNEL_CONSOLE) != 0) {
111 /* FIXME: clear if it is wired to another unit! */
114 sc = device_get_softc(devclass_get_device(sc_devclass, unit));
119 if ((sc->flags & SC_INIT_DONE) == 0) {
122 sc->cursor_char = SC_CURSOR_CHAR;
123 sc->mouse_char = SC_MOUSE_CHAR;
129 *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
136 if ((adp == NULL || adp == sc->adp) &&
137 (kbd == NULL || kbd == sc->kbd))
139 units = devclass_get_maxunit(sc_devclass);
140 for (i = 0; i < units; ++i) {
141 sc = device_get_softc(devclass_get_device(sc_devclass, i));
144 if ((adp == NULL || adp == sc->adp) &&
145 (kbd == NULL || kbd == sc->kbd))
152 sc_get_cons_priority(int *unit, int *flags)
158 for (u = 0; u < 16; u++) {
159 if (resource_disabled(SC_DRIVER_NAME, u))
161 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
163 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
165 if (f & SC_KERNEL_CONSOLE) {
166 /* the user designates this unit to be the console */
172 /* ...otherwise remember the first found unit */
182 return ((*flags & SC_KERNEL_CONSOLE) != 0 ? CN_INTERNAL : CN_NORMAL);
184 return (CN_INTERNAL);
188 sc_get_bios_values(bios_values_t *values)
190 #if defined(__i386__) || defined(__amd64__)
193 shift = *(uint8_t *)BIOS_PADDRTOVADDR(0x417);
194 values->shift_state = ((shift & BIOS_CLKED) != 0 ? CLKED : 0) |
195 ((shift & BIOS_NLKED) != 0 ? NLKED : 0) |
196 ((shift & BIOS_SLKED) != 0 ? SLKED : 0) |
197 ((shift & BIOS_ALKED) != 0 ? ALKED : 0);
199 values->bell_pitch = BELL_PITCH;
206 #if defined(HAS_TIMER_SPKR)
208 if (timer_spkr_acquire())
210 timer_spkr_setfreq(herz);
212 timer_spkr_release();
218 static device_method_t sc_methods[] = {
219 DEVMETHOD(device_identify, scidentify),
220 DEVMETHOD(device_probe, scprobe),
221 DEVMETHOD(device_attach, scattach),
225 static driver_t sc_driver = {
231 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);