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 1.9 2006/11/07 06:43:21 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 <machine_base/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
/hertz
;
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);