/*-
* 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: $
*/
#include "atkbdc.h"
#include "opt_kbd.h"
#if NATKBDC > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <dev/kbd/atkbdcreg.h>
#include <isa/isareg.h>
#include <isa/isavar.h>
MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device");
/* children */
typedef struct atkbdc_device {
int flags; /* configuration flags */
int port; /* port number (same as the controller's) */
int irq; /* ISA IRQ mask */
} atkbdc_device_t;
/* kbdc */
devclass_t atkbdc_devclass;
static int atkbdc_probe(device_t dev);
static int atkbdc_attach(device_t dev);
static void atkbdc_print_child(device_t bus, device_t dev);
static int atkbdc_read_ivar(device_t bus, device_t dev, int index,
u_long *val);
static int atkbdc_write_ivar(device_t bus, device_t dev, int index,
u_long val);
static device_method_t atkbdc_methods[] = {
DEVMETHOD(device_probe, atkbdc_probe),
DEVMETHOD(device_attach, atkbdc_attach),
DEVMETHOD(bus_print_child, atkbdc_print_child),
DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
{ 0, 0 }
};
static driver_t atkbdc_driver = {
ATKBDC_DRIVER_NAME,
atkbdc_methods,
DRIVER_TYPE_MISC,
sizeof(atkbdc_softc_t *),
};
static int
atkbdc_probe(device_t dev)
{
atkbdc_softc_t *sc;
int unit;
int error;
unit = device_get_unit(dev);
sc = *(atkbdc_softc_t **)device_get_softc(dev);
if (sc == NULL) {
/*
* We have to maintain two copies of the kbdc_softc struct,
* as the low-level console needs to have access to the
* keyboard controller before kbdc is probed and attached.
* kbdc_soft[] contains the default entry for that purpose.
* See atkbdc.c. XXX
*/
sc = atkbdc_get_softc(unit);
if (sc == NULL)
return ENOMEM;
}
device_set_desc(dev, "keyboard controller (i8042)");
error = atkbdc_probe_unit(sc, unit, isa_get_port(dev));
if (error == 0)
*(atkbdc_softc_t **)device_get_softc(dev) = sc;
return error;
}
static void
atkbdc_add_device(device_t dev, const char *name, int unit)
{
atkbdc_softc_t *sc = *(atkbdc_softc_t **)device_get_softc(dev);
atkbdc_device_t *kdev;
device_t child;
int t;
kdev = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT);
if (!kdev)
return;
bzero(kdev, sizeof *kdev);
kdev->port = sc->port;
if (resource_int_value(name, unit, "irq", &t) == 0)
kdev->irq = t;
else
kdev->irq = -1;
if (resource_int_value(name, unit, "flags", &t) == 0)
kdev->flags = t;
else
kdev->flags = 0;
child = device_add_child(dev, name, unit, kdev);
}
static int
atkbdc_attach(device_t dev)
{
atkbdc_softc_t *sc;
int i;
sc = *(atkbdc_softc_t **)device_get_softc(dev);
if ((sc == NULL) || (sc->port <= 0))
return ENXIO;
/*
* Add all devices configured to be attached to atkbdc0.
*/
for (i = resource_query_string(-1, "at", "atkbdc0");
i != -1;
i = resource_query_string(i, "at", "atkbdc0")) {
atkbdc_add_device(dev, resource_query_name(i),
resource_query_unit(i));
}
/*
* and atkbdc?
*/
for (i = resource_query_string(-1, "at", "atkbdc");
i != -1;
i = resource_query_string(i, "at", "atkbdc")) {
atkbdc_add_device(dev, resource_query_name(i),
resource_query_unit(i));
}
bus_generic_attach(dev);
return 0;
}
static void
atkbdc_print_child(device_t bus, device_t dev)
{
atkbdc_device_t *kbdcdev;
kbdcdev = (atkbdc_device_t *)device_get_ivars(dev);
if (kbdcdev->flags != 0)
printf(" flags 0x%x", kbdcdev->flags);
printf(" on %s%d", device_get_name(bus), device_get_unit(bus));
}
static int
atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
switch (index) {
case KBDC_IVAR_PORT:
*val = (u_long)ivar->port;
break;
case KBDC_IVAR_IRQ:
*val = (u_long)ivar->irq;
break;
case KBDC_IVAR_FLAGS:
*val = (u_long)ivar->flags;
break;
default:
return ENOENT;
}
return 0;
}
static int
atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
switch (index) {
case KBDC_IVAR_PORT:
ivar->port = (int)val;
break;
case KBDC_IVAR_IRQ:
ivar->irq = (int)val;
break;
case KBDC_IVAR_FLAGS:
ivar->flags = (int)val;
break;
default:
return ENOENT;
}
return 0;
}
DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0);
#endif /* NATKBDC > 0 */
