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File: [cvs.NetBSD.org] / src / sys / arch / hpcmips / isa / plumisa_machdep.c (download)

Revision 1.1, Sun Nov 21 06:46:02 1999 UTC (21 years, 2 months ago) by uch
Branch: MAIN
CVS Tags: wrstuden-devbsize-base, wrstuden-devbsize-19991221, thorpej_scsipi_nbase, thorpej_scsipi_beforemerge, thorpej_scsipi_base, thorpej-devvp-base, pre-chs-ubcperf, post-chs-ubcperf, netbsd-1-5-base, netbsd-1-5-RELEASE, netbsd-1-5-PATCH003, netbsd-1-5-PATCH002, netbsd-1-5-PATCH001, netbsd-1-5-BETA2, netbsd-1-5-BETA, netbsd-1-5-ALPHA2, netbsd-1-5, minoura-xpg4dl-base, minoura-xpg4dl, chs-ubc2-newbase
Branch point for: wrstuden-devbsize, thorpej_scsipi, thorpej-devvp, kqueue

PLUM2-ISA bridge

/*	$NetBSD: plumisa_machdep.c,v 1.1 1999/11/21 06:46:02 uch Exp $ */

/*
 * Copyright (c) 1999, by UCHIYAMA Yasushi
 * 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. The name of the developer 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/device.h>

#include <machine/bus.h>

#include <dev/isa/isavar.h>
#include <dev/isa/isareg.h>

#include <machine/platid.h>
#include <machine/platid_mask.h>

#include <hpcmips/tx/tx39var.h>
#include <hpcmips/dev/plumvar.h>
#include <hpcmips/dev/plumicuvar.h>
#include <hpcmips/dev/plumiobusvar.h>

#include "locators.h"

int	plumisabprint __P((void*, const char*));
int	plumisabmatch __P((struct device*, struct cfdata*, void*));
void	plumisabattach __P((struct device*, struct device*, void*));

struct plumisab_softc {
	struct device sc_dev;
	plum_chipset_tag_t sc_pc;
	bus_space_tag_t sc_iot;
	int sc_irq;
	void *sc_ih;
};

struct cfattach plumisab_ca = {
	sizeof(struct plumisab_softc), plumisabmatch, plumisabattach
};

int
plumisabmatch(parent, match, aux)
	struct device *parent;
	struct cfdata *match;
	void *aux;
{
	struct plumiobus_attach_args *pba = aux;
	platid_mask_t mask;
    

	if (strcmp(pba->pba_busname, match->cf_driver->cd_name)) {
		return 0;
	}

	if (match->cf_loc[PLUMIOBUSIFCF_PLATFORM] == 
	    PLUMIOBUSIFCF_PLATFORM_DEFAULT) {
		return 1;
	}

	mask = PLATID_DEREF(match->cf_loc[PLUMIOBUSIFCF_PLATFORM]);
	if (platid_match(&platid, &mask)) {
		return 2;
	}

	return 0;
}

void
plumisabattach(parent, self, aux)
	struct device *parent;
	struct device *self;
	void *aux;
{
	struct plumiobus_attach_args *pba = aux;
	struct plumisab_softc *sc = (void*)self;
	struct isabus_attach_args iba;
    
	printf("\n");
	sc->sc_pc = pba->pba_pc;
	sc->sc_iot = pba->pba_iot;
	sc->sc_irq = pba->pba_irq;
	printf(" base=%#x irq=%d\n", sc->sc_iot->t_base, sc->sc_irq);
#if 0
	/* Reset I/O bus */
	plum_power_ioreset(sc->sc_pc);
#endif
	/* Dump I/O port */
	if (0) {
		bus_space_handle_t ioh;
		int i;
		bus_space_map(sc->sc_iot, 0, 0x400, 0, &ioh);
		for(i = 0; i < 0x400; i += 4) {
			printf("[%03x]%02x", i, bus_space_read_1(sc->sc_iot, ioh, i + 3));
			printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 2));
			printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 1));
			printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 0));
		}
		bus_space_unmap(sc->sc_iot, ioh, 0x400);
	}

	iba.iba_busname = "isa";
	iba.iba_ic	= sc;
	/* Plum ISA-bus don't have memory space! */
	/* Plum ISA port space */
	iba.iba_iot     = sc->sc_iot;
	config_found(self, &iba, plumisabprint);
}

int
plumisabprint(aux, pnp)
	void *aux;
	const char *pnp;
{
	return pnp ? QUIET : UNCONF;
}

void
isa_attach_hook(parent, self, iba)
	struct device *parent, *self;
	struct isabus_attach_args *iba;
{
}

void *
isa_intr_establish(ic, irq, type, level, ih_fun, ih_arg)
	isa_chipset_tag_t ic;
	int irq;
	int type;
	int level;
	int (*ih_fun) __P((void*));
	void *ih_arg;
{
	struct plumisab_softc *sc = (void*)ic;
	
	sc->sc_ih = plum_intr_establish(sc->sc_pc, sc->sc_irq, type, level,
					ih_fun, ih_arg);
	return sc->sc_ih;
}

void
isa_intr_disestablish(ic, arg)
	isa_chipset_tag_t ic;
	void *arg;
{
	struct plumisab_softc *sc = (void*)ic;

	plum_intr_disestablish(sc->sc_pc, arg);
}

int
isa_intr_alloc(ic, mask, type, irq)
	isa_chipset_tag_t ic;
	int mask;
	int type;
	int *irq;
{
	struct plumisab_softc *sc = (void*)ic;
	
	*irq = sc->sc_irq;
	
	return 0;
}