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.
26 * $FreeBSD: src/sys/isa/syscons_isa.c,v 1.11.2.2 2001/08/01 10:42:28 yokota Exp $
29 #include "opt_syscons.h"
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/systimer.h>
39 #include <machine/console.h>
43 #include <machine/clock.h>
44 #include <machine/md_var.h>
45 #include <machine/pc/bios.h>
50 #include <machine_base/isa/timerreg.h>
52 #define BIOS_CLKED (1 << 6)
53 #define BIOS_NLKED (1 << 5)
54 #define BIOS_SLKED (1 << 4)
59 #include <dev/misc/syscons/syscons.h>
64 static devclass_t sc_devclass;
66 static int scprobe(device_t dev);
67 static int scattach(device_t dev);
69 static device_method_t sc_methods[] = {
70 DEVMETHOD(device_probe, scprobe),
71 DEVMETHOD(device_attach, scattach),
75 static driver_t sc_driver = {
81 static sc_softc_t main_softc;
87 if (isa_get_vendorid(dev))
90 device_set_desc(dev, "System console");
91 return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
95 scattach(device_t dev)
97 return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
103 return devclass_get_maxunit(sc_devclass);
107 sc_get_softc(int unit, int flags)
113 if (flags & SC_KERNEL_CONSOLE) {
114 /* FIXME: clear if it is wired to another unit! */
117 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
122 if (!(sc->flags & SC_INIT_DONE)) {
125 sc->cursor_char = SC_CURSOR_CHAR;
126 sc->mouse_char = SC_MOUSE_CHAR;
132 sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
139 if (((adp == NULL) || (adp == sc->adp))
140 && ((kbd == NULL) || (kbd == sc->kbd)))
142 units = devclass_get_maxunit(sc_devclass);
143 for (i = 0; i < units; ++i) {
144 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
147 if (((adp == NULL) || (adp == sc->adp))
148 && ((kbd == NULL) || (kbd == sc->kbd)))
155 sc_get_cons_priority(int *unit, int *flags)
162 for (i = -1; (i = resource_locate(i, SC_DRIVER_NAME)) >= 0;) {
163 u = resource_query_unit(i);
164 if ((resource_int_value(SC_DRIVER_NAME, u, "disabled",
165 &disabled) == 0) && disabled)
167 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
169 if (f & SC_KERNEL_CONSOLE) {
170 /* the user designates this unit to be the console */
176 /* ...otherwise remember the first found unit */
181 if ((i < 0) && (*unit < 0))
184 return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL);
190 sc_get_bios_values(bios_values_t *values)
195 values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461);
196 values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460);
197 shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417);
198 values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0)
199 | ((shift & BIOS_NLKED) ? NLKED : 0)
200 | ((shift & BIOS_SLKED) ? SLKED : 0)
201 | ((shift & BIOS_ALKED) ? ALKED : 0);
202 values->bell_pitch = BELL_PITCH;
203 #else /* !__i386__ */
204 values->cursor_start = 0;
205 values->cursor_end = 32;
206 values->shift_state = 0;
207 values->bell_pitch = BELL_PITCH;
208 #endif /* __i386__ */
216 /* XXX use sound device if available */
221 /* set command for counter 2, 2 byte write */
222 if (acquire_timer2(TIMER_16BIT | TIMER_SQWAVE))
225 pitch = cputimer_freq/hertz;
226 outb(TIMER_CNTR2, pitch);
227 outb(TIMER_CNTR2, pitch >> 8);
228 /* enable counter 2 output to speaker */
229 outb(IO_PPI, inb(IO_PPI) | 3);
231 /* disable counter 2 output to speaker */
232 if (release_timer2() == 0)
233 outb(IO_PPI, inb(IO_PPI) & 0xFC);
235 #endif /* __i386__ */
241 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, NULL, NULL);