freebsd-dev/sys/dev/atkbdc/atkbd_atkbdc.c
Peter Wemm 6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00

132 lines
3.6 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.
*
* $Id: atkbd_isa.c,v 1.2 1999/03/10 10:36:49 yokota Exp $
*/
#include "atkbd.h"
#include "opt_kbd.h"
#if NATKBD > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/tty.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/kbd/kbdreg.h>
#include <dev/kbd/atkbdreg.h>
#include <dev/kbd/atkbdcreg.h>
#include <isa/isareg.h>
#include <isa/isavar.h>
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,
DRIVER_TYPE_TTY,
sizeof(atkbd_softc_t),
};
static int
atkbdprobe(device_t dev)
{
uintptr_t port;
uintptr_t irq;
uintptr_t flags;
device_set_desc(dev, "AT Keyboard");
/* obtain parameters */
BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_PORT, &port);
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), port, irq, flags);
}
static int
atkbdattach(device_t dev)
{
atkbd_softc_t *sc;
uintptr_t port;
uintptr_t irq;
uintptr_t flags;
struct resource *res;
void *ih;
int zero = 0;
int error;
sc = (atkbd_softc_t *)device_get_softc(dev);
BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_PORT, &port);
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), sc, port, irq, flags);
if (error)
return error;
/* declare our interrupt handler */
res = bus_alloc_resource(dev, SYS_RES_IRQ, &zero, irq, irq, 1,
RF_SHAREABLE | RF_ACTIVE);
BUS_SETUP_INTR(device_get_parent(dev), dev, res, atkbd_isa_intr, sc,
&ih);
return 0;
}
static void
atkbd_isa_intr(void *arg)
{
atkbd_softc_t *sc;
sc = (atkbd_softc_t *)arg;
(*kbdsw[sc->kbd->kb_index]->intr)(sc->kbd, NULL);
}
DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0);
#endif /* NATKBD > 0 */