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/* $OpenBSD: syscon.c,v 1.20 2004/05/07 18:10:28 miod Exp $ */
/*
* Copyright (c) 1999 Steve Murphree, Jr.
* 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.
*/
/*
* VME188 SYSCON
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/board.h>
#include <machine/frame.h>
#include <mvme88k/dev/sysconreg.h>
struct sysconsoftc {
struct device sc_dev;
struct intrhand sc_abih; /* `abort' switch */
struct intrhand sc_acih; /* `ac fail' */
struct intrhand sc_sfih; /* `sys fail' */
struct intrhand sc_m188ih; /* `m188 interrupt' */
};
void sysconattach(struct device *, struct device *, void *);
int sysconmatch(struct device *, void *, void *);
int syscon_print(void *, const char *);
int syscon_scan(struct device *, void *, void *);
int sysconabort(void *);
int sysconacfail(void *);
int sysconsysfail(void *);
int sysconm188(void *);
struct cfattach syscon_ca = {
sizeof(struct sysconsoftc), sysconmatch, sysconattach
};
struct cfdriver syscon_cd = {
NULL, "syscon", DV_DULL
};
int
sysconmatch(parent, vcf, args)
struct device *parent;
void *vcf, *args;
{
/* Don't match if wrong cpu */
if (brdtyp != BRD_188)
return (0);
return (1);
}
int
syscon_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
syscon_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) {
oca.ca_paddr = ca->ca_paddr + oca.ca_offset;
} else {
oca.ca_paddr = -1;
}
oca.ca_bustype = BUS_SYSCON;
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, syscon_print);
return (1);
}
void
sysconattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct sysconsoftc *sc = (struct sysconsoftc *)self;
printf("\n");
/*
* pseudo driver, abort interrupt handler
*/
sc->sc_abih.ih_fn = sysconabort;
sc->sc_abih.ih_arg = 0;
sc->sc_abih.ih_wantframe = 1;
sc->sc_abih.ih_ipl = IPL_ABORT;
sc->sc_acih.ih_fn = sysconacfail;
sc->sc_acih.ih_arg = 0;
sc->sc_acih.ih_wantframe = 1;
sc->sc_acih.ih_ipl = IPL_ABORT;
sc->sc_sfih.ih_fn = sysconsysfail;
sc->sc_sfih.ih_arg = 0;
sc->sc_sfih.ih_wantframe = 1;
sc->sc_sfih.ih_ipl = IPL_ABORT;
sc->sc_m188ih.ih_fn = sysconm188;
sc->sc_m188ih.ih_arg = 0;
sc->sc_m188ih.ih_wantframe = 1;
sc->sc_m188ih.ih_ipl = IPL_ABORT;
sysconintr_establish(SYSCV_ABRT, &sc->sc_abih);
sysconintr_establish(SYSCV_ACF, &sc->sc_acih);
sysconintr_establish(SYSCV_SYSF, &sc->sc_sfih);
intr_establish(M188_IVEC, &sc->sc_m188ih);
config_search(syscon_scan, self, args);
}
int
sysconintr_establish(vec, ih)
int vec;
struct intrhand *ih;
{
#ifdef DIAGNOSTIC
if (vec < 0 || vec >= SYSCON_NVEC)
panic("sysconintr_establish: illegal vector 0x%x\n", vec);
#endif
return (intr_establish(SYSCON_VECT + vec, ih));
}
int
sysconabort(eframe)
void *eframe;
{
ISR_RESET_NMI;
nmihand((struct frame *)eframe);
return (1);
}
int
sysconsysfail(eframe)
void *eframe;
{
ISR_RESET_SYSFAIL;
nmihand((struct frame *)eframe);
return (1);
}
int
sysconacfail(eframe)
void *eframe;
{
ISR_RESET_ACFAIL;
nmihand((struct frame *)eframe);
return (1);
}
int
sysconm188(eframe)
void *eframe;
{
printf("MVME188 interrupting?\n");
return (1);
}
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