2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "opt_syscons.h"
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
39 #include <sys/consio.h>
40 #include <sys/sysctl.h>
42 #if defined(__i386__) || defined(__amd64__)
44 #include <machine/clock.h>
45 #include <machine/md_var.h>
46 #include <machine/ppireg.h>
47 #include <machine/timerreg.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>
68 #include <machine/xbox.h>
71 static devclass_t sc_devclass;
73 static sc_softc_t main_softc;
74 #ifdef SC_NO_SUSPEND_VTYSWITCH
75 static int sc_no_suspend_vtswitch = 1;
77 static int sc_no_suspend_vtswitch = 0;
79 static int sc_cur_scr;
81 TUNABLE_INT("hw.syscons.sc_no_suspend_vtswitch", (int *)&sc_no_suspend_vtswitch);
82 SYSCTL_DECL(_hw_syscons);
83 SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RW,
84 &sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
87 scidentify (driver_t *driver, device_t parent)
89 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
96 if (isa_get_vendorid(dev))
99 device_set_desc(dev, "System console");
100 return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
104 scattach(device_t dev)
106 return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
110 scsuspend(device_t dev)
118 if (sc->cur_scp == NULL)
121 sc_cur_scr = sc->cur_scp->index;
123 if (sc_no_suspend_vtswitch)
127 sc_switch_scr(sc, 0);
128 if (!sc->switch_in_progress) {
131 tsleep(&dummy, 0, "scsuspend", 100);
138 scresume(device_t dev)
142 if (sc_no_suspend_vtswitch)
146 sc_switch_scr(sc, sc_cur_scr);
154 return devclass_get_maxunit(sc_devclass);
158 *sc_get_softc(int unit, int flags)
164 if (flags & SC_KERNEL_CONSOLE) {
165 /* FIXME: clear if it is wired to another unit! */
168 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
173 if (!(sc->flags & SC_INIT_DONE)) {
176 sc->cursor_char = SC_CURSOR_CHAR;
177 sc->mouse_char = SC_MOUSE_CHAR;
183 *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
190 if (((adp == NULL) || (adp == sc->adp))
191 && ((kbd == NULL) || (kbd == sc->kbd)))
193 units = devclass_get_maxunit(sc_devclass);
194 for (i = 0; i < units; ++i) {
195 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
198 if (((adp == NULL) || (adp == sc->adp))
199 && ((kbd == NULL) || (kbd == sc->kbd)))
206 sc_get_cons_priority(int *unit, int *flags)
213 * The XBox Loader does not support hints, which makes our initial
214 * console probe fail. Therefore, if an XBox is found, we hardcode the
215 * existence of the console, as it is always there anyway.
217 if (arch_i386_is_xbox) {
219 *flags = SC_KERNEL_CONSOLE;
225 for (u = 0; u < 16; u++) {
226 if (resource_disabled(SC_DRIVER_NAME, u))
228 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
230 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
232 if (f & SC_KERNEL_CONSOLE) {
233 /* the user designates this unit to be the console */
239 /* ...otherwise remember the first found unit */
247 return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL);
253 sc_get_bios_values(bios_values_t *values)
255 #if defined(__i386__) || defined(__amd64__)
258 values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461);
259 values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460);
260 shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417);
261 values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0)
262 | ((shift & BIOS_NLKED) ? NLKED : 0)
263 | ((shift & BIOS_SLKED) ? SLKED : 0)
264 | ((shift & BIOS_ALKED) ? ALKED : 0);
266 values->cursor_start = 0;
267 values->cursor_end = 32;
268 values->shift_state = 0;
270 values->bell_pitch = BELL_PITCH;
276 #if defined(__i386__) || defined(__amd64__)
278 /* set command for counter 2, 2 byte write */
279 if (timer_spkr_acquire())
282 spkr_set_pitch(timer_freq / herz);
283 /* enable counter 2 output to speaker */
286 /* disable counter 2 output to speaker */
288 timer_spkr_release();
295 static device_method_t sc_methods[] = {
296 DEVMETHOD(device_identify, scidentify),
297 DEVMETHOD(device_probe, scprobe),
298 DEVMETHOD(device_attach, scattach),
299 DEVMETHOD(device_suspend, scsuspend),
300 DEVMETHOD(device_resume, scresume),
304 static driver_t sc_driver = {
310 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);