322 lines
9.7 KiB
C
322 lines
9.7 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_kbd.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/malloc.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/atkbdc/atkbdc_subr.h>
|
|
#include <dev/atkbdc/atkbdcreg.h>
|
|
|
|
#include <isa/isareg.h>
|
|
#include <isa/isavar.h>
|
|
|
|
static int atkbdc_isa_probe(device_t dev);
|
|
static int atkbdc_isa_attach(device_t dev);
|
|
static device_t atkbdc_isa_add_child(device_t bus, u_int order, const char *name,
|
|
int unit);
|
|
static struct resource *atkbdc_isa_alloc_resource(device_t dev, device_t child,
|
|
int type, int *rid, u_long start, u_long end,
|
|
u_long count, u_int flags);
|
|
static int atkbdc_isa_release_resource(device_t dev, device_t child,
|
|
int type, int rid, struct resource *r);
|
|
|
|
static device_method_t atkbdc_isa_methods[] = {
|
|
DEVMETHOD(device_probe, atkbdc_isa_probe),
|
|
DEVMETHOD(device_attach, atkbdc_isa_attach),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
|
|
DEVMETHOD(bus_add_child, atkbdc_isa_add_child),
|
|
DEVMETHOD(bus_print_child, atkbdc_print_child),
|
|
DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
|
|
DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
|
|
DEVMETHOD(bus_get_resource_list,atkbdc_get_resource_list),
|
|
DEVMETHOD(bus_alloc_resource, atkbdc_isa_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, atkbdc_isa_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
|
|
DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
|
|
DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource),
|
|
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t atkbdc_isa_driver = {
|
|
ATKBDC_DRIVER_NAME,
|
|
atkbdc_isa_methods,
|
|
sizeof(atkbdc_softc_t *),
|
|
};
|
|
|
|
static struct isa_pnp_id atkbdc_ids[] = {
|
|
{ 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */
|
|
{ 0x2003d041, "Keyboard controller (i8042)" }, /* PNP0320 */
|
|
{ 0 }
|
|
};
|
|
|
|
static int
|
|
atkbdc_isa_probe(device_t dev)
|
|
{
|
|
struct resource *port0;
|
|
struct resource *port1;
|
|
u_long start;
|
|
u_long count;
|
|
int error;
|
|
int rid;
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
bus_space_tag_t tag;
|
|
bus_space_handle_t ioh1;
|
|
volatile int i;
|
|
register_t flags;
|
|
#endif
|
|
|
|
/* check PnP IDs */
|
|
if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO)
|
|
return ENXIO;
|
|
|
|
device_set_desc(dev, "Keyboard controller (i8042)");
|
|
|
|
/*
|
|
* Adjust I/O port resources.
|
|
* The AT keyboard controller uses two ports (a command/data port
|
|
* 0x60 and a status port 0x64), which may be given to us in
|
|
* one resource (0x60 through 0x64) or as two separate resources
|
|
* (0x60 and 0x64). Some brain-damaged ACPI BIOS has reversed
|
|
* command/data port and status port. Furthermore, /boot/device.hints
|
|
* may contain just one port, 0x60. We shall adjust resource settings
|
|
* so that these two ports are available as two separate resources
|
|
* in correct order.
|
|
*/
|
|
device_quiet(dev);
|
|
rid = 0;
|
|
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0)
|
|
return ENXIO;
|
|
if (start == IO_KBD + KBD_STATUS_PORT) {
|
|
start = IO_KBD;
|
|
count++;
|
|
}
|
|
if (count > 1) /* adjust the count and/or start port */
|
|
bus_set_resource(dev, SYS_RES_IOPORT, rid, start, 1);
|
|
port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
|
|
if (port0 == NULL)
|
|
return ENXIO;
|
|
rid = 1;
|
|
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, NULL, NULL) != 0)
|
|
bus_set_resource(dev, SYS_RES_IOPORT, 1,
|
|
start + KBD_STATUS_PORT, 1);
|
|
port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
|
|
if (port1 == NULL) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
|
|
return ENXIO;
|
|
}
|
|
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
/*
|
|
* Check if we really have AT keyboard controller. Poll status
|
|
* register until we get "all clear" indication. If no such
|
|
* indication comes, it probably means that there is no AT
|
|
* keyboard controller present. Give up in such case. Check relies
|
|
* on the fact that reading from non-existing in/out port returns
|
|
* 0xff on i386. May or may not be true on other platforms.
|
|
*/
|
|
tag = rman_get_bustag(port0);
|
|
ioh1 = rman_get_bushandle(port1);
|
|
flags = intr_disable();
|
|
for (i = 0; i != 65535; i++) {
|
|
if ((bus_space_read_1(tag, ioh1, 0) & 0x2) == 0)
|
|
break;
|
|
}
|
|
intr_restore(flags);
|
|
if (i == 65535) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
|
|
if (bootverbose)
|
|
device_printf(dev, "AT keyboard controller not found\n");
|
|
return ENXIO;
|
|
}
|
|
#endif
|
|
|
|
device_verbose(dev);
|
|
|
|
error = atkbdc_probe_unit(device_get_unit(dev), port0, port1);
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
|
|
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
atkbdc_isa_attach(device_t dev)
|
|
{
|
|
atkbdc_softc_t *sc;
|
|
int unit;
|
|
int error;
|
|
int rid;
|
|
|
|
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;
|
|
}
|
|
|
|
rid = 0;
|
|
sc->retry = 5000;
|
|
sc->port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
|
|
RF_ACTIVE);
|
|
if (sc->port0 == NULL)
|
|
return ENXIO;
|
|
rid = 1;
|
|
sc->port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
|
|
RF_ACTIVE);
|
|
if (sc->port1 == NULL) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
|
|
return ENXIO;
|
|
}
|
|
|
|
/*
|
|
* If the device is not created by the PnP BIOS or ACPI, then
|
|
* the hint for the IRQ is on the child atkbd device, not the
|
|
* keyboard controller, so this can fail.
|
|
*/
|
|
rid = 0;
|
|
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
|
|
|
|
error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
|
|
if (error) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1);
|
|
if (sc->irq != NULL)
|
|
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
|
|
return error;
|
|
}
|
|
*(atkbdc_softc_t **)device_get_softc(dev) = sc;
|
|
|
|
bus_generic_probe(dev);
|
|
bus_generic_attach(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static device_t
|
|
atkbdc_isa_add_child(device_t bus, u_int order, const char *name, int unit)
|
|
{
|
|
atkbdc_device_t *ivar;
|
|
atkbdc_softc_t *sc;
|
|
device_t child;
|
|
int t;
|
|
|
|
sc = *(atkbdc_softc_t **)device_get_softc(bus);
|
|
ivar = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
|
|
M_NOWAIT | M_ZERO);
|
|
if (!ivar)
|
|
return NULL;
|
|
|
|
child = device_add_child_ordered(bus, order, name, unit);
|
|
if (child == NULL) {
|
|
free(ivar, M_ATKBDDEV);
|
|
return child;
|
|
}
|
|
|
|
resource_list_init(&ivar->resources);
|
|
ivar->rid = order;
|
|
|
|
/*
|
|
* If the device is not created by the PnP BIOS or ACPI, refer
|
|
* to device hints for IRQ. We always populate the resource
|
|
* list entry so we can use a standard bus_get_resource()
|
|
* method.
|
|
*/
|
|
if (order == KBDC_RID_KBD) {
|
|
if (sc->irq == NULL) {
|
|
if (resource_int_value(name, unit, "irq", &t) != 0)
|
|
t = -1;
|
|
} else
|
|
t = rman_get_start(sc->irq);
|
|
if (t > 0)
|
|
resource_list_add(&ivar->resources, SYS_RES_IRQ,
|
|
ivar->rid, t, t, 1);
|
|
}
|
|
|
|
if (resource_disabled(name, unit))
|
|
device_disable(child);
|
|
|
|
device_set_ivars(child, ivar);
|
|
|
|
return child;
|
|
}
|
|
|
|
struct resource *
|
|
atkbdc_isa_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
atkbdc_softc_t *sc;
|
|
|
|
sc = *(atkbdc_softc_t **)device_get_softc(dev);
|
|
if (type == SYS_RES_IRQ && *rid == KBDC_RID_KBD && sc->irq != NULL)
|
|
return (sc->irq);
|
|
return (bus_generic_rl_alloc_resource(dev, child, type, rid, start,
|
|
end, count, flags));
|
|
}
|
|
|
|
static int
|
|
atkbdc_isa_release_resource(device_t dev, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
atkbdc_softc_t *sc;
|
|
|
|
sc = *(atkbdc_softc_t **)device_get_softc(dev);
|
|
if (type == SYS_RES_IRQ && rid == KBDC_RID_KBD && r == sc->irq)
|
|
return (0);
|
|
return (bus_generic_rl_release_resource(dev, child, type, rid, r));
|
|
}
|
|
|
|
DRIVER_MODULE(atkbdc, isa, atkbdc_isa_driver, atkbdc_devclass, 0, 0);
|
|
DRIVER_MODULE(atkbdc, acpi, atkbdc_isa_driver, atkbdc_devclass, 0, 0);
|