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/* $OpenBSD: pckbc_isa.c,v 1.7 2010/07/22 14:27:46 deraadt Exp $ */
/* $NetBSD: pckbc_isa.c,v 1.2 2000/03/23 07:01:35 thorpej Exp $ */
/*
* Copyright (c) 1998
* Matthias Drochner. 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.
* 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 AUTHOR ``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 AUTHOR 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/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <sys/lock.h>
#include <machine/bus.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/ic/i8042reg.h>
#include <dev/ic/pckbcvar.h>
int pckbc_isa_match(struct device *, void *, void *);
void pckbc_isa_attach(struct device *, struct device *, void *);
int pckbc_isa_activate(struct device *, int);
struct pckbc_isa_softc {
struct pckbc_softc sc_pckbc;
isa_chipset_tag_t sc_ic;
int sc_irq[PCKBC_NSLOTS];
};
struct cfattach pckbc_isa_ca = {
sizeof(struct pckbc_isa_softc), pckbc_isa_match, pckbc_isa_attach,
NULL, pckbc_isa_activate
};
void pckbc_isa_intr_establish(struct pckbc_softc *, pckbc_slot_t);
int
pckbc_isa_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh_d, ioh_c;
int res, ok = 1;
/* If values are hardwired to something that they can't be, punt. */
if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != IO_KBD) ||
ia->ia_maddr != MADDRUNK ||
(ia->ia_irq != IRQUNK && ia->ia_irq != 1 /* XXX */) ||
ia->ia_drq != DRQUNK)
return (0);
if (pckbc_is_console(iot, IO_KBD) == 0) {
if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d))
return (0);
if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) {
bus_space_unmap(iot, ioh_d, 1);
return (0);
}
/* flush KBC */
(void) pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0);
/* KBC selftest */
if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) {
ok = 0;
goto out;
}
res = pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0);
if (res != 0x55) {
printf("kbc selftest: %x\n", res);
ok = 0;
}
out:
bus_space_unmap(iot, ioh_d, 1);
bus_space_unmap(iot, ioh_c, 1);
}
if (ok) {
ia->ia_iobase = IO_KBD;
ia->ia_iosize = 5;
ia->ia_msize = 0x0;
}
return (ok);
}
int
pckbc_isa_activate(struct device *self, int act)
{
struct pckbc_isa_softc *isc = (struct pckbc_isa_softc *)self;
switch (act) {
case DVACT_SUSPEND:
config_activate_children(self, act);
break;
case DVACT_RESUME:
pckbc_reset(&isc->sc_pckbc);
config_activate_children(self, act);
break;
}
return (0);
}
void
pckbc_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pckbc_isa_softc *isc = (void *)self;
struct pckbc_softc *sc = &isc->sc_pckbc;
struct cfdata *cf = self->dv_cfdata;
struct isa_attach_args *ia = aux;
struct pckbc_internal *t;
bus_space_tag_t iot;
bus_space_handle_t ioh_d, ioh_c;
isc->sc_ic = ia->ia_ic;
iot = ia->ia_iot;
/*
* Set up IRQs for "normal" ISA.
*
* XXX The "aux" slot is different (9) on the Alpha AXP150 Jensen.
*/
isc->sc_irq[PCKBC_KBD_SLOT] = 1;
isc->sc_irq[PCKBC_AUX_SLOT] = 12;
sc->intr_establish = pckbc_isa_intr_establish;
if (pckbc_is_console(iot, IO_KBD)) {
t = &pckbc_consdata;
ioh_d = t->t_ioh_d;
ioh_c = t->t_ioh_c;
pckbc_console_attached = 1;
/* t->t_cmdbyte was initialized by cnattach */
} else {
if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) ||
bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
panic("pckbc_attach: couldn't map");
t = malloc(sizeof(*t), M_DEVBUF, M_WAITOK | M_ZERO);
t->t_iot = iot;
t->t_ioh_d = ioh_d;
t->t_ioh_c = ioh_c;
t->t_addr = IO_KBD;
t->t_cmdbyte = KC8_CPU; /* Enable ports */
}
t->t_sc = sc;
sc->id = t;
printf("\n");
/* Finish off the attach. */
pckbc_attach(sc, cf->cf_flags);
}
void
pckbc_isa_intr_establish(sc, slot)
struct pckbc_softc *sc;
pckbc_slot_t slot;
{
struct pckbc_isa_softc *isc = (void *) sc;
void *rv;
rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE,
IPL_TTY, pckbcintr, sc, sc->sc_dv.dv_xname);
if (rv == NULL) {
printf("%s: unable to establish interrupt for %s slot\n",
sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
} else {
printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname,
isc->sc_irq[slot], pckbc_slot_names[slot]);
}
}
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