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/* $OpenBSD: xbox.c,v 1.4 2006/03/04 12:38:58 miod Exp $ */
/*
* Copyright (c) 1999 Jason L. Wright (jason@thought.net)
* 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.
*/
/*
* Driver for the Sun SBus Expansion Subsystem
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/autoconf.h>
#include <sparc/cpu.h>
#include <sparc/sparc/cpuvar.h>
#include <sparc/dev/sbusvar.h>
#include <sparc/dev/dmareg.h> /* for SBUS_BURST_* */
#include <sparc/dev/xboxreg.h>
#include <sparc/dev/xboxvar.h>
int xboxmatch(struct device *, void *, void *);
void xboxattach(struct device *, struct device *, void *);
int xboxprint(void *, const char *);
void xbox_fix_range(struct xbox_softc *sc, struct sbus_softc *sbp);
struct cfattach xbox_ca = {
sizeof (struct xbox_softc), xboxmatch, xboxattach
};
struct cfdriver xbox_cd = {
NULL, "xbox", DV_DULL
};
int
xboxmatch(parent, vcf, aux)
struct device *parent;
void *vcf, *aux;
{
struct confargs *ca = aux;
register struct romaux *ra = &ca->ca_ra;
if (strcmp("SUNW,xbox", ra->ra_name))
return (0);
if (!sbus_testdma((struct sbus_softc *)parent, ca))
return(0);
return (1);
}
void
xboxattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct xbox_softc *sc = (struct xbox_softc *)self;
struct confargs *ca = aux;
struct romaux *ra = &ca->ca_ra;
int node = ca->ca_ra.ra_node;
struct confargs oca;
char *s;
s = getpropstring(node, "model");
printf(": model %s", s);
s = getpropstring(node, "child-present");
if (strcmp(s, "false") == 0) {
printf(": no devices\n");
return;
}
sc->sc_regs.xa_write0 = mapiodev(&ca->ca_ra.ra_reg[0], 0,
sizeof(*sc->sc_regs.xa_write0));
sc->sc_regs.xa_errs = mapiodev(&ca->ca_ra.ra_reg[1], 0,
sizeof(*sc->sc_regs.xa_errs));
sc->sc_regs.xa_ctl0 = mapiodev(&ca->ca_ra.ra_reg[2], 0,
sizeof(*sc->sc_regs.xa_ctl0));
sc->sc_regs.xa_ctl1 = mapiodev(&ca->ca_ra.ra_reg[3], 0,
sizeof(*sc->sc_regs.xa_ctl1));
sc->sc_regs.xa_elua = mapiodev(&ca->ca_ra.ra_reg[4], 0,
sizeof(*sc->sc_regs.xa_elua));
sc->sc_regs.xa_ella = mapiodev(&ca->ca_ra.ra_reg[5], 0,
sizeof(*sc->sc_regs.xa_ella));
sc->sc_regs.xa_rsrv = mapiodev(&ca->ca_ra.ra_reg[6], 0,
sizeof(*sc->sc_regs.xa_rsrv));
sc->sc_regs.xb_errs = mapiodev(&ca->ca_ra.ra_reg[7], 0,
sizeof(*sc->sc_regs.xb_errs));
sc->sc_regs.xb_ctl0 = mapiodev(&ca->ca_ra.ra_reg[8], 0,
sizeof(*sc->sc_regs.xb_ctl0));
sc->sc_regs.xb_ctl1 = mapiodev(&ca->ca_ra.ra_reg[9], 0,
sizeof(*sc->sc_regs.xb_ctl1));
sc->sc_regs.xb_elua = mapiodev(&ca->ca_ra.ra_reg[10], 0,
sizeof(*sc->sc_regs.xb_elua));
sc->sc_regs.xb_ella = mapiodev(&ca->ca_ra.ra_reg[11], 0,
sizeof(*sc->sc_regs.xb_ella));
sc->sc_regs.xb_rsrv = mapiodev(&ca->ca_ra.ra_reg[12], 0,
sizeof(*sc->sc_regs.xb_rsrv));
if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "SUNW,xbox") == 0)
oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
else
oca.ca_ra.ra_bp = NULL;
sc->sc_key = getpropint(node, "write0-key", -1);
sc->sc_node = node;
*sc->sc_regs.xa_write0 = (sc->sc_key << 24) | XAC_CTL1_OFFSET |
XBOX_CTL1_CSIE | XBOX_CTL1_TRANSPARENT;
*sc->sc_regs.xa_write0 = (sc->sc_key << 24) | XBC_CTL1_OFFSET |
XBOX_CTL1_XSIE | XBOX_CTL1_XSBRE | XBOX_CTL1_XSSE;
DELAY(100);
xbox_fix_range(sc, (struct sbus_softc *)parent);
sbus_establish(&sc->sc_sd, &sc->sc_dv);
printf("\n");
oca = (*ca);
oca.ca_bustype = BUS_XBOX;
if (ca->ca_ra.ra_bp != NULL)
oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
else
oca.ca_ra.ra_bp = NULL;
(void)config_found(&sc->sc_dv, (void *)&oca, xboxprint);
}
/*
* Fix up our address ranges based on parent address spaces.
*/
void
xbox_fix_range(sc, sbp)
struct xbox_softc *sc;
struct sbus_softc *sbp;
{
int rlen, i, j;
rlen = getproplen(sc->sc_node, "ranges");
sc->sc_range =
(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
if (sc->sc_range == NULL) {
printf("%s: PROM ranges too large: %d\n",
sc->sc_dv.dv_xname, rlen);
return;
}
sc->sc_nrange = rlen / sizeof(struct rom_range);
(void)getprop(sc->sc_node, "ranges", sc->sc_range, rlen);
for (i = 0; i < sc->sc_nrange; i++) {
for (j = 0; j < sbp->sc_nrange; j++) {
if (sc->sc_range[i].pspace == sbp->sc_range[j].cspace) {
sc->sc_range[i].poffset +=
sbp->sc_range[j].poffset;
sc->sc_range[i].pspace =
sbp->sc_range[j].pspace;
break;
}
}
}
}
int
xboxprint(args, sbus)
void *args;
const char *sbus;
{
struct confargs *ca = args;
if (sbus)
printf("%s at %s", ca->ca_ra.ra_name, sbus);
return (UNCONF);
}
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