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/pc/bios.h>
50 #include <vm/vm_param.h>
52 #define BIOS_CLKED (1 << 6)
53 #define BIOS_NLKED (1 << 5)
54 #define BIOS_SLKED (1 << 4)
59 #include <dev/syscons/syscons.h>
61 #include <isa/isavar.h>
66 #include <machine/xbox.h>
69 static devclass_t sc_devclass;
71 static sc_softc_t main_softc;
72 #ifdef SC_NO_SUSPEND_VTYSWITCH
73 static int sc_no_suspend_vtswitch = 1;
75 static int sc_no_suspend_vtswitch = 0;
77 static int sc_cur_scr;
79 TUNABLE_INT("hw.syscons.sc_no_suspend_vtswitch", &sc_no_suspend_vtswitch);
80 SYSCTL_DECL(_hw_syscons);
81 SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RW,
82 &sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
85 scidentify(driver_t *driver, device_t parent)
88 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)
107 return (sc_attach_unit(device_get_unit(dev), device_get_flags(dev) |
112 scsuspend(device_t dev)
119 if (sc->cur_scp == NULL)
122 if (sc->suspend_in_progress == 0) {
123 sc_cur_scr = sc->cur_scp->index;
124 if (!sc_no_suspend_vtswitch && sc_cur_scr != 0)
126 sc_switch_scr(sc, 0);
127 if (!sc->switch_in_progress)
129 pause("scsuspend", hz);
132 sc->suspend_in_progress++;
138 scresume(device_t dev)
144 if (sc->cur_scp == NULL)
147 sc->suspend_in_progress--;
148 if (sc->suspend_in_progress == 0) {
149 if (!sc_no_suspend_vtswitch && sc_cur_scr != 0)
150 sc_switch_scr(sc, sc_cur_scr);
152 mark_all(sc->cur_scp);
162 return (devclass_get_maxunit(sc_devclass));
166 *sc_get_softc(int unit, int flags)
172 if ((flags & SC_KERNEL_CONSOLE) != 0) {
173 /* FIXME: clear if it is wired to another unit! */
176 sc = device_get_softc(devclass_get_device(sc_devclass, unit));
181 if ((sc->flags & SC_INIT_DONE) == 0) {
184 sc->cursor_char = SC_CURSOR_CHAR;
185 sc->mouse_char = SC_MOUSE_CHAR;
191 *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
198 if ((adp == NULL || adp == sc->adp) &&
199 (kbd == NULL || kbd == sc->kbd))
201 units = devclass_get_maxunit(sc_devclass);
202 for (i = 0; i < units; ++i) {
203 sc = device_get_softc(devclass_get_device(sc_devclass, i));
206 if ((adp == NULL || adp == sc->adp) &&
207 (kbd == NULL || kbd == sc->kbd))
214 sc_get_cons_priority(int *unit, int *flags)
221 * The XBox Loader does not support hints, which makes our initial
222 * console probe fail. Therefore, if an XBox is found, we hardcode the
223 * existence of the console, as it is always there anyway.
225 if (arch_i386_is_xbox) {
227 *flags = SC_KERNEL_CONSOLE;
228 return (CN_INTERNAL);
233 for (u = 0; u < 16; u++) {
234 if (resource_disabled(SC_DRIVER_NAME, u))
236 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
238 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
240 if (f & SC_KERNEL_CONSOLE) {
241 /* the user designates this unit to be the console */
247 /* ...otherwise remember the first found unit */
257 return ((*flags & SC_KERNEL_CONSOLE) != 0 ? CN_INTERNAL : CN_NORMAL);
259 return (CN_INTERNAL);
263 sc_get_bios_values(bios_values_t *values)
265 #if defined(__i386__) || defined(__amd64__)
268 values->cursor_start = *(uint8_t *)BIOS_PADDRTOVADDR(0x461);
269 values->cursor_end = *(uint8_t *)BIOS_PADDRTOVADDR(0x460);
270 shift = *(uint8_t *)BIOS_PADDRTOVADDR(0x417);
271 values->shift_state = ((shift & BIOS_CLKED) != 0 ? CLKED : 0) |
272 ((shift & BIOS_NLKED) != 0 ? NLKED : 0) |
273 ((shift & BIOS_SLKED) != 0 ? SLKED : 0) |
274 ((shift & BIOS_ALKED) != 0 ? ALKED : 0);
276 values->cursor_start = 0;
277 values->cursor_end = 32;
278 values->shift_state = 0;
280 values->bell_pitch = BELL_PITCH;
287 #if defined(HAS_TIMER_SPKR)
289 if (timer_spkr_acquire())
291 timer_spkr_setfreq(herz);
293 timer_spkr_release();
299 static device_method_t sc_methods[] = {
300 DEVMETHOD(device_identify, scidentify),
301 DEVMETHOD(device_probe, scprobe),
302 DEVMETHOD(device_attach, scattach),
303 DEVMETHOD(device_suspend, scsuspend),
304 DEVMETHOD(device_resume, scresume),
308 static driver_t sc_driver = {
314 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);
316 static devclass_t scpm_devclass;
319 scpm_identify(driver_t *driver, device_t parent)
322 device_add_child(parent, "scpm", 0);
326 scpm_probe(device_t dev)
329 device_set_desc(dev, SC_DRIVER_NAME " suspend/resume");
332 return (BUS_PROBE_DEFAULT);
336 scpm_attach(device_t dev)
339 bus_generic_probe(dev);
340 bus_generic_attach(dev);
346 scpm_suspend(device_t dev)
350 error = bus_generic_suspend(dev);
354 return (scsuspend(dev));
358 scpm_resume(device_t dev)
363 return (bus_generic_resume(dev));
366 static device_method_t scpm_methods[] = {
367 DEVMETHOD(device_identify, scpm_identify),
368 DEVMETHOD(device_probe, scpm_probe),
369 DEVMETHOD(device_attach, scpm_attach),
370 DEVMETHOD(device_suspend, scpm_suspend),
371 DEVMETHOD(device_resume, scpm_resume),
375 static driver_t scpm_driver = {
381 DRIVER_MODULE(scpm, vgapm, scpm_driver, scpm_devclass, 0, 0);