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/* $NetBSD: pckbc_js.c,v 1.9 2003/12/12 14:31:39 martin Exp $ */
/*
* Copyright (c) 2002 Valeriy E. Ushakov
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pckbc_js.c,v 1.9 2003/12/12 14:31:39 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/i8042reg.h>
#include <dev/ic/pckbcvar.h>
#include <dev/pckbc/pckbdvar.h>
#include <dev/ebus/ebusreg.h>
#include <dev/ebus/ebusvar.h>
#ifdef __GENERIC_SOFT_INTERRUPTS_ALL_LEVELS
#define IPL_JSCKBD IPL_TTY
#else
#define IPL_JSCKBD IPL_SOFTSERIAL
#endif
struct pckbc_js_softc {
struct pckbc_softc jsc_pckbc; /* real "pckbc" softc */
/* kbd and mouse share interrupt in both mr.coffee and krups */
u_int32_t jsc_intr;
int jsc_establised;
void *jsc_int_cookie;
};
static int pckbc_obio_match(struct device *, struct cfdata *, void *);
static void pckbc_obio_attach(struct device *, struct device *, void *);
static int pckbc_ebus_match(struct device *, struct cfdata *, void *);
static void pckbc_ebus_attach(struct device *, struct device *, void *);
static void pckbc_js_attach_common( struct pckbc_js_softc *,
bus_space_tag_t, bus_addr_t, int, int);
static void pckbc_js_intr_establish(struct pckbc_softc *, pckbc_slot_t);
static int jsc_pckbdintr(void *vsc);
/* Mr.Coffee */
CFATTACH_DECL(pckbc_obio, sizeof(struct pckbc_js_softc),
pckbc_obio_match, pckbc_obio_attach, NULL, NULL);
/* ms-IIep */
CFATTACH_DECL(pckbc_ebus, sizeof(struct pckbc_js_softc),
pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL);
#define PCKBC_PROM_DEVICE_NAME "8042"
static int
pckbc_obio_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
union obio_attach_args *uoba = aux;
struct sbus_attach_args *sa = &uoba->uoba_sbus;
return (strcmp(sa->sa_name, PCKBC_PROM_DEVICE_NAME) == 0);
}
static int
pckbc_ebus_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct ebus_attach_args *ea = aux;
return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0);
}
static void
pckbc_obio_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self;
union obio_attach_args *uoba = aux;
struct sbus_attach_args *sa = &uoba->uoba_sbus;
bus_space_tag_t iot;
bus_addr_t ioaddr;
int intr, isconsole;
iot = sa->sa_bustag;
ioaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset);
intr = sa->sa_nintr ? sa->sa_pri : /* level */ 13;
/*
* TODO:
* . on OFW machines stdin is keyboard node, not 8042 node
* . on OBP machines 8042 node is faked by boot's prompatch
* and PROM's stdin points to zs keyboard (add prom patch?)
* . we probably want the stdout node to control whether
* console goes to serial
*/
isconsole = 1;
pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole);
}
static void
pckbc_ebus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self;
struct ebus_attach_args *ea = aux;
bus_space_tag_t iot;
bus_addr_t ioaddr;
int intr;
int stdin_node, node;
int isconsole;
iot = ea->ea_bustag;
ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]);
intr = ea->ea_nintr ? ea->ea_intr[0] : /* line */ 0;
/* search children of "8042" node for stdin (keyboard) */
stdin_node = prom_instance_to_package(prom_stdin());
isconsole = 0;
for (node = prom_firstchild(ea->ea_node);
node != 0; node = prom_nextsibling(node))
if (node == stdin_node) {
isconsole = 1;
break;
}
pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole);
}
static void
pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole)
struct pckbc_js_softc *jsc;
bus_space_tag_t iot;
bus_addr_t ioaddr;
int intr;
int isconsole;
{
struct pckbc_softc *sc = (struct pckbc_softc *)jsc;
struct pckbc_internal *t;
jsc->jsc_pckbc.intr_establish = pckbc_js_intr_establish;
jsc->jsc_intr = intr;
jsc->jsc_establised = 0;
if (isconsole) {
int status;
status = pckbc_cnattach(iot, ioaddr, KBCMDP, PCKBC_KBD_SLOT);
if (status == 0)
printf(": cnattach ok");
else
printf(": cnattach %d", status);
}
if (pckbc_is_console(iot, ioaddr)) {
t = &pckbc_consdata;
pckbc_console_attached = 1;
} else {
bus_space_handle_t ioh_d, ioh_c;
if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) {
printf(": unable to map data register\n");
return;
}
if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) {
bus_space_unmap(iot, ioh_d, 1);
printf(": unable to map cmd register\n");
return;
}
t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
memset(t, 0, sizeof(struct pckbc_internal));
t->t_iot = iot;
t->t_ioh_d = ioh_d;
t->t_ioh_c = ioh_c;
t->t_addr = ioaddr;
t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */
callout_init(&t->t_cleanup);
(void) pckbc_poll_data1(t, PCKBC_KBD_SLOT, 0); /* flush */
if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0)
printf(": unable to request self test");
else {
int response;
response = pckbc_poll_data1(t, PCKBC_KBD_SLOT, 0);
if (response == 0x55)
printf(": selftest ok");
else
printf(": selftest failed (0x%02x)", response);
}
}
/* crosslink */
t->t_sc = sc;
sc->id = t;
/* finish off the attach */
printf("\n");
pckbc_attach(sc);
}
/*
* Keyboard and mouse share the interrupt
* so don't install interrupt handler twice.
*/
static void
pckbc_js_intr_establish(sc, slot)
struct pckbc_softc *sc;
pckbc_slot_t slot;
{
struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)sc;
void *res;
if (jsc->jsc_establised) {
#ifdef DEBUG
printf("%s: %s slot shares interrupt (already established)\n",
sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
#endif
return;
}
/*
* We can not choose the devic class interruptlevel freely,
* so we debounce via a softinterrupt.
*/
jsc->jsc_int_cookie = softintr_establish(IPL_JSCKBD,
pckbcintr_soft, &jsc->jsc_pckbc);
if (jsc->jsc_int_cookie == NULL) {
printf("%s: unable to establish %s soft interrupt\n",
sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
return;
}
res = bus_intr_establish(sc->id->t_iot, jsc->jsc_intr,
IPL_SERIAL, jsc_pckbdintr, jsc);
if (res == NULL)
printf("%s: unable to establish %s slot interrupt\n",
sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
else
jsc->jsc_establised = 1;
}
static int
jsc_pckbdintr(void *vsc)
{
struct pckbc_js_softc *jsc = vsc;
softintr_schedule(jsc->jsc_int_cookie);
pckbcintr_hard(&jsc->jsc_pckbc);
/*
* This interrupt is not shared on javastations, avoid "stray"
* warnings. XXX - why do "stray interrupt" warnings happen if
* we don't claim the interrupt always?
*/
return 1;
}
/*
* MD hook for use without MI wscons.
* Called by pckbc_cnattach().
*/
int
pckbc_machdep_cnattach(constag, slot)
pckbc_tag_t constag;
pckbc_slot_t slot;
{
#if !defined(__HAVE_NWSCONS) && defined(MSIIEP)
/* we do use wscons on krups! */
return (pckbd_cnattach(constag, slot));
#else
return (0);
#endif
}
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