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freebsd/sys/isa/atkbd_isa.c
Kazutaka YOKOTA 764952572b Return consistent key action codes at key press and release
events. Otherwise you would see unexpected results if shift or
locking keys are defined to give different actions depending
on other shift/locking keys' state.

Please keep the ukbd module and the kernel in sync, otherwise
the USB keyboard won't work after this change.
MFC after:	10 days
2001-07-20 13:05:57 +00:00

144 lines
3.8 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.
*
* $FreeBSD$
*/
#include "opt_kbd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/kbio.h>
#include <dev/kbd/kbdreg.h>
#include <dev/kbd/atkbdreg.h>
#include <dev/kbd/atkbdcreg.h>
#include <isa/isareg.h>
#include <isa/isavar.h>
typedef struct {
struct resource *intr;
void *ih;
} atkbd_softc_t;
devclass_t atkbd_devclass;
static int atkbdprobe(device_t dev);
static int atkbdattach(device_t dev);
static int atkbdresume(device_t dev);
static void atkbd_isa_intr(void *arg);
static device_method_t atkbd_methods[] = {
DEVMETHOD(device_probe, atkbdprobe),
DEVMETHOD(device_attach, atkbdattach),
DEVMETHOD(device_resume, atkbdresume),
{ 0, 0 }
};
static driver_t atkbd_driver = {
ATKBD_DRIVER_NAME,
atkbd_methods,
sizeof(atkbd_softc_t),
};
static int
atkbdprobe(device_t dev)
{
uintptr_t irq;
uintptr_t flags;
device_set_desc(dev, "AT Keyboard");
/* obtain parameters */
BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq);
BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags);
/* probe the device */
return atkbd_probe_unit(device_get_unit(dev),
device_get_unit(device_get_parent(dev)),
irq, flags);
}
static int
atkbdattach(device_t dev)
{
atkbd_softc_t *sc;
keyboard_t *kbd;
uintptr_t irq;
uintptr_t flags;
int rid;
int error;
sc = device_get_softc(dev);
BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq);
BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags);
error = atkbd_attach_unit(device_get_unit(dev), &kbd,
device_get_unit(device_get_parent(dev)),
irq, flags);
if (error)
return error;
/* declare our interrupt handler */
rid = 0;
sc->intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq, irq, 1,
RF_SHAREABLE | RF_ACTIVE);
BUS_SETUP_INTR(device_get_parent(dev), dev, sc->intr, INTR_TYPE_TTY,
atkbd_isa_intr, kbd, &sc->ih);
return 0;
}
static int
atkbdresume(device_t dev)
{
keyboard_t *kbd;
kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME,
device_get_unit(dev)));
if (kbd)
(*kbdsw[kbd->kb_index]->clear_state)(kbd);
return 0;
}
static void
atkbd_isa_intr(void *arg)
{
keyboard_t *kbd;
kbd = (keyboard_t *)arg;
(*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
}
DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0);