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 $
27 * $DragonFly: src/sys/bus/isa/syscons_isa.c,v 1.5 2004/08/02 23:20:28 dillon Exp $
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>
36 #include <sys/systimer.h>
40 #include <machine/console.h>
44 #include <machine/clock.h>
45 #include <machine/md_var.h>
46 #include <machine/pc/bios.h>
51 #include <i386/isa/timerreg.h>
53 #define BIOS_CLKED (1 << 6)
54 #define BIOS_NLKED (1 << 5)
55 #define BIOS_SLKED (1 << 4)
60 #include <dev/misc/syscons/syscons.h>
65 static devclass_t sc_devclass;
67 static int scprobe(device_t dev);
68 static int scattach(device_t dev);
70 static device_method_t sc_methods[] = {
71 DEVMETHOD(device_probe, scprobe),
72 DEVMETHOD(device_attach, scattach),
76 static driver_t sc_driver = {
82 static sc_softc_t main_softc;
88 if (isa_get_vendorid(dev))
91 device_set_desc(dev, "System console");
92 return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
96 scattach(device_t dev)
98 return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
104 return devclass_get_maxunit(sc_devclass);
108 *sc_get_softc(int unit, int flags)
114 if (flags & SC_KERNEL_CONSOLE) {
115 /* FIXME: clear if it is wired to another unit! */
118 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
123 if (!(sc->flags & SC_INIT_DONE)) {
126 sc->cursor_char = SC_CURSOR_CHAR;
127 sc->mouse_char = SC_MOUSE_CHAR;
133 *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
140 if (((adp == NULL) || (adp == sc->adp))
141 && ((kbd == NULL) || (kbd == sc->kbd)))
143 units = devclass_get_maxunit(sc_devclass);
144 for (i = 0; i < units; ++i) {
145 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
148 if (((adp == NULL) || (adp == sc->adp))
149 && ((kbd == NULL) || (kbd == sc->kbd)))
156 sc_get_cons_priority(int *unit, int *flags)
163 for (i = -1; (i = resource_locate(i, SC_DRIVER_NAME)) >= 0;) {
164 u = resource_query_unit(i);
165 if ((resource_int_value(SC_DRIVER_NAME, u, "disabled",
166 &disabled) == 0) && disabled)
168 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
170 if (f & SC_KERNEL_CONSOLE) {
171 /* the user designates this unit to be the console */
177 /* ...otherwise remember the first found unit */
182 if ((i < 0) && (*unit < 0))
185 return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL);
191 sc_get_bios_values(bios_values_t *values)
196 values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461);
197 values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460);
198 shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417);
199 values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0)
200 | ((shift & BIOS_NLKED) ? NLKED : 0)
201 | ((shift & BIOS_SLKED) ? SLKED : 0)
202 | ((shift & BIOS_ALKED) ? ALKED : 0);
203 values->bell_pitch = BELL_PITCH;
204 #else /* !__i386__ */
205 values->cursor_start = 0;
206 values->cursor_end = 32;
207 values->shift_state = 0;
208 values->bell_pitch = BELL_PITCH;
209 #endif /* __i386__ */
217 /* XXX use sound device if available */
222 /* set command for counter 2, 2 byte write */
223 if (acquire_timer2(TIMER_16BIT | TIMER_SQWAVE))
226 pitch = cputimer_freq/herz;
227 outb(TIMER_CNTR2, pitch);
228 outb(TIMER_CNTR2, pitch >> 8);
229 /* enable counter 2 output to speaker */
230 outb(IO_PPI, inb(IO_PPI) | 3);
232 /* disable counter 2 output to speaker */
233 if (release_timer2() == 0)
234 outb(IO_PPI, inb(IO_PPI) & 0xFC);
236 #endif /* __i386__ */
242 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);