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