297 lines
6.8 KiB
C
297 lines
6.8 KiB
C
/*-
|
|
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer as
|
|
* the first lines of this file unmodified.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_syscons.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/cons.h>
|
|
#include <sys/kbio.h>
|
|
#include <sys/consio.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#ifdef __i386__
|
|
|
|
#include <machine/clock.h>
|
|
#include <machine/md_var.h>
|
|
#include <machine/pc/bios.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <i386/isa/timerreg.h>
|
|
|
|
#define BIOS_CLKED (1 << 6)
|
|
#define BIOS_NLKED (1 << 5)
|
|
#define BIOS_SLKED (1 << 4)
|
|
#define BIOS_ALKED 0
|
|
|
|
#endif /* __i386__ */
|
|
|
|
#include <dev/syscons/syscons.h>
|
|
|
|
#include <isa/isareg.h>
|
|
#include <isa/isavar.h>
|
|
|
|
static devclass_t sc_devclass;
|
|
|
|
static sc_softc_t main_softc;
|
|
#ifdef SC_NO_SUSPEND_VTYSWITCH
|
|
static int sc_no_suspend_vtswitch = 1;
|
|
#else
|
|
static int sc_no_suspend_vtswitch = 0;
|
|
#endif
|
|
static int sc_cur_scr;
|
|
|
|
TUNABLE_INT("hw.syscons.sc_no_suspend_vtswitch", (int *)&sc_no_suspend_vtswitch);
|
|
SYSCTL_DECL(_hw_syscons);
|
|
SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RW,
|
|
&sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
|
|
|
|
static void
|
|
scidentify (driver_t *driver, device_t parent)
|
|
{
|
|
BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
|
|
}
|
|
|
|
static int
|
|
scprobe(device_t dev)
|
|
{
|
|
/* No pnp support */
|
|
if (isa_get_vendorid(dev))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "System console");
|
|
return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
|
|
}
|
|
|
|
static int
|
|
scattach(device_t dev)
|
|
{
|
|
return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
|
|
}
|
|
|
|
static int
|
|
scsuspend(device_t dev)
|
|
{
|
|
int retry = 10;
|
|
static int dummy;
|
|
sc_softc_t *sc;
|
|
|
|
sc = &main_softc;
|
|
|
|
if (sc->cur_scp == NULL)
|
|
return (0);
|
|
|
|
sc_cur_scr = sc->cur_scp->index;
|
|
|
|
if (sc_no_suspend_vtswitch)
|
|
return (0);
|
|
|
|
do {
|
|
sc_switch_scr(sc, 0);
|
|
if (!sc->switch_in_progress) {
|
|
break;
|
|
}
|
|
tsleep(&dummy, 0, "scsuspend", 100);
|
|
} while (retry--);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
scresume(device_t dev)
|
|
{
|
|
sc_softc_t *sc;
|
|
|
|
if (sc_no_suspend_vtswitch)
|
|
return (0);
|
|
|
|
sc = &main_softc;
|
|
sc_switch_scr(sc, sc_cur_scr);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
sc_max_unit(void)
|
|
{
|
|
return devclass_get_maxunit(sc_devclass);
|
|
}
|
|
|
|
sc_softc_t
|
|
*sc_get_softc(int unit, int flags)
|
|
{
|
|
sc_softc_t *sc;
|
|
|
|
if (unit < 0)
|
|
return NULL;
|
|
if (flags & SC_KERNEL_CONSOLE) {
|
|
/* FIXME: clear if it is wired to another unit! */
|
|
sc = &main_softc;
|
|
} else {
|
|
sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
|
|
if (sc == NULL)
|
|
return NULL;
|
|
}
|
|
sc->unit = unit;
|
|
if (!(sc->flags & SC_INIT_DONE)) {
|
|
sc->keyboard = -1;
|
|
sc->adapter = -1;
|
|
sc->cursor_char = SC_CURSOR_CHAR;
|
|
sc->mouse_char = SC_MOUSE_CHAR;
|
|
}
|
|
return sc;
|
|
}
|
|
|
|
sc_softc_t
|
|
*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
|
|
{
|
|
sc_softc_t *sc;
|
|
int units;
|
|
int i;
|
|
|
|
sc = &main_softc;
|
|
if (((adp == NULL) || (adp == sc->adp))
|
|
&& ((kbd == NULL) || (kbd == sc->kbd)))
|
|
return sc;
|
|
units = devclass_get_maxunit(sc_devclass);
|
|
for (i = 0; i < units; ++i) {
|
|
sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
|
|
if (sc == NULL)
|
|
continue;
|
|
if (((adp == NULL) || (adp == sc->adp))
|
|
&& ((kbd == NULL) || (kbd == sc->kbd)))
|
|
return sc;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
sc_get_cons_priority(int *unit, int *flags)
|
|
{
|
|
const char *at;
|
|
int u, f;
|
|
|
|
*unit = -1;
|
|
for (u = 0; u < 16; u++) {
|
|
if (resource_disabled(SC_DRIVER_NAME, u))
|
|
continue;
|
|
if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
|
|
continue;
|
|
if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
|
|
f = 0;
|
|
if (f & SC_KERNEL_CONSOLE) {
|
|
/* the user designates this unit to be the console */
|
|
*unit = u;
|
|
*flags = f;
|
|
break;
|
|
}
|
|
if (*unit < 0) {
|
|
/* ...otherwise remember the first found unit */
|
|
*unit = u;
|
|
*flags = f;
|
|
}
|
|
}
|
|
if (*unit < 0)
|
|
return CN_DEAD;
|
|
#if 0
|
|
return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL);
|
|
#endif
|
|
return CN_INTERNAL;
|
|
}
|
|
|
|
void
|
|
sc_get_bios_values(bios_values_t *values)
|
|
{
|
|
#ifdef __i386__
|
|
u_int8_t shift;
|
|
|
|
values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461);
|
|
values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460);
|
|
shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417);
|
|
values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0)
|
|
| ((shift & BIOS_NLKED) ? NLKED : 0)
|
|
| ((shift & BIOS_SLKED) ? SLKED : 0)
|
|
| ((shift & BIOS_ALKED) ? ALKED : 0);
|
|
values->bell_pitch = BELL_PITCH;
|
|
#else /* !__i386__ */
|
|
values->cursor_start = 0;
|
|
values->cursor_end = 32;
|
|
values->shift_state = 0;
|
|
values->bell_pitch = BELL_PITCH;
|
|
#endif /* __i386__ */
|
|
}
|
|
|
|
int
|
|
sc_tone(int herz)
|
|
{
|
|
#ifdef __i386__
|
|
int pitch;
|
|
|
|
if (herz) {
|
|
/* set command for counter 2, 2 byte write */
|
|
if (acquire_timer2(TIMER_16BIT | TIMER_SQWAVE))
|
|
return EBUSY;
|
|
/* set pitch */
|
|
pitch = timer_freq/herz;
|
|
outb(TIMER_CNTR2, pitch);
|
|
outb(TIMER_CNTR2, pitch >> 8);
|
|
/* enable counter 2 output to speaker */
|
|
outb(IO_PPI, inb(IO_PPI) | 3);
|
|
} else {
|
|
/* disable counter 2 output to speaker */
|
|
outb(IO_PPI, inb(IO_PPI) & 0xFC);
|
|
release_timer2();
|
|
}
|
|
#endif /* __i386__ */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static device_method_t sc_methods[] = {
|
|
DEVMETHOD(device_identify, scidentify),
|
|
DEVMETHOD(device_probe, scprobe),
|
|
DEVMETHOD(device_attach, scattach),
|
|
DEVMETHOD(device_suspend, scsuspend),
|
|
DEVMETHOD(device_resume, scresume),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t sc_driver = {
|
|
SC_DRIVER_NAME,
|
|
sc_methods,
|
|
sizeof(sc_softc_t),
|
|
};
|
|
|
|
DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);
|