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/* $OpenBSD: pcctwo.c,v 1.29 2006/05/08 14:36:10 miod Exp $ */
/*
* Copyright (c) 1995 Theo de Raadt
* 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.
*/
/*
* VME1x7 PCC2 chip
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/tty.h>
#include <sys/uio.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/fcntl.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <dev/cons.h>
#include <mvme88k/dev/pcctworeg.h>
#include <mvme88k/dev/pcctwovar.h>
#include "bussw.h"
void pcctwoattach(struct device *, struct device *, void *);
int pcctwomatch(struct device *, void *, void *);
struct cfattach pcctwo_ca = {
sizeof(struct pcctwosoftc), pcctwomatch, pcctwoattach
};
struct cfdriver pcctwo_cd = {
NULL, "pcctwo", DV_DULL
};
int pcctwo_print(void *args, const char *bus);
int pcctwo_scan(struct device *parent, void *child, void *args);
int
pcctwomatch(parent, vcf, args)
struct device *parent;
void *vcf, *args;
{
struct confargs *ca = args;
bus_space_handle_t ioh;
int rc;
u_int8_t chipid;
/* Bomb if wrong cpu */
switch (brdtyp) {
case BRD_187:
case BRD_8120:
case BRD_197:
break;
default:
return 0;
}
if (bus_space_map(ca->ca_iot, PCC2_BASE, PCC2_SIZE,
0, &ioh) != 0)
return 0;
rc = badaddr((vaddr_t)bus_space_vaddr(ca->ca_iot, ioh), 4);
if (rc == 0) {
chipid = bus_space_read_1(ca->ca_iot, ioh, PCCTWO_CHIPID);
if (chipid != PCC2_ID) {
#ifdef DEBUG
printf("==> pcctwo: wrong chip id %x.\n", chipid);
rc = -1;
#endif
}
}
bus_space_unmap(ca->ca_iot, ioh, PCC2_SIZE);
return rc == 0;
}
void
pcctwoattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct confargs *ca = args;
struct pcctwosoftc *sc = (struct pcctwosoftc *)self;
bus_space_handle_t ioh;
u_int8_t genctl;
sc->sc_base = PCC2_BASE;
if (bus_space_map(ca->ca_iot, sc->sc_base, PCC2_SIZE, 0, &ioh) != 0) {
printf(": can't map registers!\n");
return;
}
sc->sc_iot = ca->ca_iot;
sc->sc_ioh = ioh;
bus_space_write_1(sc->sc_iot, ioh, PCCTWO_VECBASE, PCC2_VECBASE);
genctl = bus_space_read_1(sc->sc_iot, ioh, PCCTWO_GENCTL);
#if NBUSSW > 0
if (ca->ca_bustype == BUS_BUSSWITCH) {
/* Make sure the bus is mc68040 compatible */
genctl |= PCC2_GENCTL_C040;
}
#endif
genctl |= PCC2_GENCTL_IEN; /* global irq enable */
bus_space_write_1(sc->sc_iot, ioh, PCCTWO_GENCTL, genctl);
printf(": rev %d\n",
bus_space_read_1(sc->sc_iot, ioh, PCCTWO_CHIPREV));
config_search(pcctwo_scan, self, args);
}
int
pcctwo_print(args, bus)
void *args;
const char *bus;
{
struct confargs *ca = args;
if (ca->ca_offset != -1)
printf(" offset 0x%x", ca->ca_offset);
if (ca->ca_ipl > 0)
printf(" ipl %d", ca->ca_ipl);
return (UNCONF);
}
int
pcctwo_scan(parent, child, args)
struct device *parent;
void *child, *args;
{
struct cfdata *cf = child;
struct confargs oca, *ca = args;
bzero(&oca, sizeof oca);
oca.ca_iot = ca->ca_iot;
oca.ca_dmat = ca->ca_dmat;
oca.ca_offset = cf->cf_loc[0];
oca.ca_ipl = cf->cf_loc[1];
if (oca.ca_offset != -1) {
/* offset locator for pcctwo children is relative to segment */
oca.ca_paddr = ca->ca_paddr + oca.ca_offset;
} else {
oca.ca_paddr = -1;
}
oca.ca_bustype = BUS_PCCTWO;
oca.ca_name = cf->cf_driver->cd_name;
if ((*cf->cf_attach->ca_match)(parent, cf, &oca) == 0)
return (0);
config_attach(parent, cf, &oca, pcctwo_print);
return (1);
}
/*
* PCC2 interrupts land in a PCC2_NVEC sized hole starting at PCC2_VECBASE
*/
int
pcctwointr_establish(int vec, struct intrhand *ih, const char *name)
{
#ifdef DIAGNOSTIC
if (vec < 0 || vec >= PCC2_NVEC)
panic("pcctwo_establish: illegal vector 0x%x", vec);
#endif
return intr_establish(PCC2_VECBASE + vec, ih, name);
}
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