e465985885
these days, so de-generalize the acquire_timer/release_timer api to just deal with speakers. The new (optional) MD functions are: timer_spkr_acquire() timer_spkr_release() and timer_spkr_setfreq() the last of which configures the timer to generate a tone of a given frequency, in Hz instead of 1/1193182th of seconds. Drop entirely timer2 on pc98, it is not used anywhere at all. Move sysbeep() to kern/tty_cons.c and use the timer_spkr*() if they exist, and do nothing otherwise. Remove prototypes and empty acquire-/release-timer() and sysbeep() functions from the non-beeping archs. This eliminate the need for the speaker driver to know about i8254frequency at all. In theory this makes the speaker driver MI, contingent on the timer_spkr_*() functions existing but the driver does not know this yet and still attaches to the ISA bus. Syscons is more tricky, in one function, sc_tone(), it knows the hz and things are just fine. In the other function, sc_bell() it seems to get the period from the KDMKTONE ioctl in terms if 1/1193182th second, so we hardcode the 1193182 and leave it at that. It's probably not important. Change a few other sysbeep() uses which obviously knew that the argument was in terms of i8254 frequency, and leave alone those that look like people thought sysbeep() took frequency in hertz. This eliminates the knowledge of i8254_freq from all but the actual clock.c code and the prof_machdep.c on amd64 and i386, where I think it would be smart to ask for help from the timecounters anyway [TBD].
310 lines
7.0 KiB
C
310 lines
7.0 KiB
C
/*-
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* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer as
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* the first lines of this file unmodified.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_syscons.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/cons.h>
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#include <sys/kbio.h>
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#include <sys/consio.h>
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#include <sys/sysctl.h>
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#if defined(__i386__) || defined(__amd64__)
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#include <machine/clock.h>
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#include <machine/md_var.h>
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#include <machine/ppireg.h>
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#include <machine/timerreg.h>
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#include <machine/pc/bios.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_param.h>
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#define BIOS_CLKED (1 << 6)
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#define BIOS_NLKED (1 << 5)
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#define BIOS_SLKED (1 << 4)
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#define BIOS_ALKED 0
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#endif
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#include <dev/syscons/syscons.h>
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#include <isa/isavar.h>
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#include "opt_xbox.h"
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#ifdef XBOX
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#include <machine/xbox.h>
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#endif
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static devclass_t sc_devclass;
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static sc_softc_t main_softc;
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#ifdef SC_NO_SUSPEND_VTYSWITCH
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static int sc_no_suspend_vtswitch = 1;
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#else
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static int sc_no_suspend_vtswitch = 0;
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#endif
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static int sc_cur_scr;
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TUNABLE_INT("hw.syscons.sc_no_suspend_vtswitch", (int *)&sc_no_suspend_vtswitch);
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SYSCTL_DECL(_hw_syscons);
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SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RW,
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&sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
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static void
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scidentify (driver_t *driver, device_t parent)
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{
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BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
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}
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static int
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scprobe(device_t dev)
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{
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/* No pnp support */
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if (isa_get_vendorid(dev))
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return (ENXIO);
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device_set_desc(dev, "System console");
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return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
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}
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static int
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scattach(device_t dev)
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{
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return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
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}
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static int
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scsuspend(device_t dev)
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{
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int retry = 10;
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sc_softc_t *sc;
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sc = &main_softc;
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if (sc->cur_scp == NULL)
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return (0);
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sc_cur_scr = sc->cur_scp->index;
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if (sc_no_suspend_vtswitch)
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return (0);
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do {
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sc_switch_scr(sc, 0);
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if (!sc->switch_in_progress) {
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break;
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}
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pause("scsuspend", hz);
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} while (retry--);
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return (0);
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}
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static int
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scresume(device_t dev)
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{
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sc_softc_t *sc;
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if (sc_no_suspend_vtswitch)
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return (0);
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sc = &main_softc;
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sc_switch_scr(sc, sc_cur_scr);
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return (0);
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}
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int
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sc_max_unit(void)
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{
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return devclass_get_maxunit(sc_devclass);
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}
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sc_softc_t
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*sc_get_softc(int unit, int flags)
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{
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sc_softc_t *sc;
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if (unit < 0)
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return NULL;
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if (flags & SC_KERNEL_CONSOLE) {
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/* FIXME: clear if it is wired to another unit! */
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sc = &main_softc;
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} else {
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sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
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if (sc == NULL)
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return NULL;
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}
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sc->unit = unit;
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if (!(sc->flags & SC_INIT_DONE)) {
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sc->keyboard = -1;
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sc->adapter = -1;
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sc->cursor_char = SC_CURSOR_CHAR;
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sc->mouse_char = SC_MOUSE_CHAR;
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}
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return sc;
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}
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sc_softc_t
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*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
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{
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sc_softc_t *sc;
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int units;
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int i;
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sc = &main_softc;
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if (((adp == NULL) || (adp == sc->adp))
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&& ((kbd == NULL) || (kbd == sc->kbd)))
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return sc;
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units = devclass_get_maxunit(sc_devclass);
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for (i = 0; i < units; ++i) {
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sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
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if (sc == NULL)
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continue;
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if (((adp == NULL) || (adp == sc->adp))
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&& ((kbd == NULL) || (kbd == sc->kbd)))
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return sc;
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}
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return NULL;
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}
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int
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sc_get_cons_priority(int *unit, int *flags)
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{
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const char *at;
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int u, f;
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#ifdef XBOX
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/*
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* The XBox Loader does not support hints, which makes our initial
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* console probe fail. Therefore, if an XBox is found, we hardcode the
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* existence of the console, as it is always there anyway.
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*/
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if (arch_i386_is_xbox) {
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*unit = 0;
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*flags = SC_KERNEL_CONSOLE;
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return CN_INTERNAL;
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}
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#endif
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*unit = -1;
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for (u = 0; u < 16; u++) {
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if (resource_disabled(SC_DRIVER_NAME, u))
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continue;
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if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
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continue;
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if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
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f = 0;
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if (f & SC_KERNEL_CONSOLE) {
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/* the user designates this unit to be the console */
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*unit = u;
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*flags = f;
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break;
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}
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if (*unit < 0) {
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/* ...otherwise remember the first found unit */
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*unit = u;
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*flags = f;
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}
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}
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if (*unit < 0)
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return CN_DEAD;
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#if 0
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return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL);
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#endif
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return CN_INTERNAL;
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}
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void
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sc_get_bios_values(bios_values_t *values)
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{
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#if defined(__i386__) || defined(__amd64__)
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u_int8_t shift;
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values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461);
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values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460);
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shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417);
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values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0)
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| ((shift & BIOS_NLKED) ? NLKED : 0)
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| ((shift & BIOS_SLKED) ? SLKED : 0)
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| ((shift & BIOS_ALKED) ? ALKED : 0);
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#else
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values->cursor_start = 0;
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values->cursor_end = 32;
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values->shift_state = 0;
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#endif
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values->bell_pitch = BELL_PITCH;
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}
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int
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sc_tone(int herz)
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{
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#if defined(__i386__) || defined(__amd64__)
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if (herz) {
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/* set command for counter 2, 2 byte write */
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if (timer_spkr_acquire())
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return EBUSY;
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/* set pitch */
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timer_spkr_setfreq(herz);
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/* enable counter 2 output to speaker */
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ppi_spkr_on();
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} else {
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/* disable counter 2 output to speaker */
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ppi_spkr_off();
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timer_spkr_release();
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}
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#endif
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return 0;
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}
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static device_method_t sc_methods[] = {
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DEVMETHOD(device_identify, scidentify),
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DEVMETHOD(device_probe, scprobe),
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DEVMETHOD(device_attach, scattach),
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DEVMETHOD(device_suspend, scsuspend),
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DEVMETHOD(device_resume, scresume),
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{ 0, 0 }
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};
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static driver_t sc_driver = {
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SC_DRIVER_NAME,
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sc_methods,
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sizeof(sc_softc_t),
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};
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DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);
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