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freebsd/sys/isa/atkbd_isa.c
Kazutaka YOKOTA db3e34cb71 - Properly keep track of I/O port resources.
- Use bus_space_read/write() to access the ports.
2000-03-19 03:25:13 +00:00

129 lines
3.5 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 <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 void atkbd_isa_intr(void *arg);
static device_method_t atkbd_methods[] = {
DEVMETHOD(device_probe, atkbdprobe),
DEVMETHOD(device_attach, atkbdattach),
{ 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 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);