PLUM2-ISA bridge
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/* $NetBSD: plumisa_machdep.c,v 1.1 1999/11/21 06:46:02 uch Exp $ */
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/*
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* Copyright (c) 1999, by UCHIYAMA Yasushi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the developer may NOT be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isareg.h>
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#include <machine/platid.h>
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#include <machine/platid_mask.h>
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#include <hpcmips/tx/tx39var.h>
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#include <hpcmips/dev/plumvar.h>
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#include <hpcmips/dev/plumicuvar.h>
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#include <hpcmips/dev/plumiobusvar.h>
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#include "locators.h"
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int plumisabprint __P((void*, const char*));
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int plumisabmatch __P((struct device*, struct cfdata*, void*));
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void plumisabattach __P((struct device*, struct device*, void*));
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struct plumisab_softc {
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struct device sc_dev;
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plum_chipset_tag_t sc_pc;
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bus_space_tag_t sc_iot;
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int sc_irq;
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void *sc_ih;
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};
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struct cfattach plumisab_ca = {
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sizeof(struct plumisab_softc), plumisabmatch, plumisabattach
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};
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int
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plumisabmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct plumiobus_attach_args *pba = aux;
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platid_mask_t mask;
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if (strcmp(pba->pba_busname, match->cf_driver->cd_name)) {
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return 0;
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}
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if (match->cf_loc[PLUMIOBUSIFCF_PLATFORM] ==
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PLUMIOBUSIFCF_PLATFORM_DEFAULT) {
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return 1;
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}
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mask = PLATID_DEREF(match->cf_loc[PLUMIOBUSIFCF_PLATFORM]);
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if (platid_match(&platid, &mask)) {
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return 2;
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}
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return 0;
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}
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void
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plumisabattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct plumiobus_attach_args *pba = aux;
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struct plumisab_softc *sc = (void*)self;
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struct isabus_attach_args iba;
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printf("\n");
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sc->sc_pc = pba->pba_pc;
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sc->sc_iot = pba->pba_iot;
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sc->sc_irq = pba->pba_irq;
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printf(" base=%#x irq=%d\n", sc->sc_iot->t_base, sc->sc_irq);
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#if 0
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/* Reset I/O bus */
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plum_power_ioreset(sc->sc_pc);
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#endif
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/* Dump I/O port */
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if (0) {
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bus_space_handle_t ioh;
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int i;
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bus_space_map(sc->sc_iot, 0, 0x400, 0, &ioh);
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for(i = 0; i < 0x400; i += 4) {
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printf("[%03x]%02x", i, bus_space_read_1(sc->sc_iot, ioh, i + 3));
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printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 2));
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printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 1));
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printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 0));
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}
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bus_space_unmap(sc->sc_iot, ioh, 0x400);
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}
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iba.iba_busname = "isa";
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iba.iba_ic = sc;
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/* Plum ISA-bus don't have memory space! */
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/* Plum ISA port space */
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iba.iba_iot = sc->sc_iot;
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config_found(self, &iba, plumisabprint);
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}
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int
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plumisabprint(aux, pnp)
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void *aux;
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const char *pnp;
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{
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return pnp ? QUIET : UNCONF;
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}
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void
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isa_attach_hook(parent, self, iba)
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struct device *parent, *self;
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struct isabus_attach_args *iba;
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{
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}
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void *
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isa_intr_establish(ic, irq, type, level, ih_fun, ih_arg)
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isa_chipset_tag_t ic;
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int irq;
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int type;
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int level;
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int (*ih_fun) __P((void*));
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void *ih_arg;
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{
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struct plumisab_softc *sc = (void*)ic;
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sc->sc_ih = plum_intr_establish(sc->sc_pc, sc->sc_irq, type, level,
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ih_fun, ih_arg);
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return sc->sc_ih;
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}
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void
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isa_intr_disestablish(ic, arg)
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isa_chipset_tag_t ic;
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void *arg;
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{
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struct plumisab_softc *sc = (void*)ic;
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plum_intr_disestablish(sc->sc_pc, arg);
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}
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int
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isa_intr_alloc(ic, mask, type, irq)
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isa_chipset_tag_t ic;
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int mask;
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int type;
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int *irq;
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{
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struct plumisab_softc *sc = (void*)ic;
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*irq = sc->sc_irq;
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return 0;
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}
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