2a73ef60b7
a char *, because that's what was really intended, and because if the print function modifies the string, various things could become unhappy (so the string should _not_ be modified).
177 lines
4.3 KiB
C
177 lines
4.3 KiB
C
/* $NetBSD: apecs.c,v 1.10 1996/08/27 21:53:53 cgd Exp $ */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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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/kernel.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <vm/vm.h>
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#include <machine/autoconf.h>
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#include <machine/rpb.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <alpha/pci/apecsreg.h>
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#include <alpha/pci/apecsvar.h>
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#if defined(DEC_2100_A50)
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#include <alpha/pci/pci_2100_a50.h>
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#endif
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int apecsmatch __P((struct device *, void *, void *));
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void apecsattach __P((struct device *, struct device *, void *));
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struct cfattach apecs_ca = {
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sizeof(struct apecs_softc), apecsmatch, apecsattach,
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};
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struct cfdriver apecs_cd = {
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NULL, "apecs", DV_DULL,
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};
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static int apecsprint __P((void *, const char *pnp));
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/* There can be only one. */
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int apecsfound;
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struct apecs_config apecs_configuration;
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int
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apecsmatch(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct confargs *ca = aux;
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/* Make sure that we're looking for an APECS. */
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if (strcmp(ca->ca_name, apecs_cd.cd_name) != 0)
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return (0);
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if (apecsfound)
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return (0);
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return (1);
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}
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/*
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* Set up the chipset's function pointers.
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*/
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void
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apecs_init(acp)
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struct apecs_config *acp;
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{
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acp->ac_comanche_pass2 =
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(REGVAL(COMANCHE_ED) & COMANCHE_ED_PASS2) != 0;
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acp->ac_memwidth =
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(REGVAL(COMANCHE_GCR) & COMANCHE_GCR_WIDEMEM) != 0 ? 128 : 64;
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acp->ac_epic_pass2 =
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(REGVAL(EPIC_DCSR) & EPIC_DCSR_PASS2) != 0;
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/*
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* Can't set up SGMAP data here; can be called before malloc().
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*/
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apecs_lca_bus_io_init(&acp->ac_bc, acp);
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apecs_lca_bus_mem_init(&acp->ac_bc, acp);
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apecs_pci_init(&acp->ac_pc, acp);
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/* Turn off DMA window enables in PCI Base Reg 1. */
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REGVAL(EPIC_PCI_BASE_1) = 0;
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alpha_mb();
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/* XXX SGMAP? */
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}
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void
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apecsattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct apecs_softc *sc = (struct apecs_softc *)self;
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struct apecs_config *acp;
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struct pcibus_attach_args pba;
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/* note that we've attached the chipset; can't have 2 APECSes. */
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apecsfound = 1;
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/*
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* set up the chipset's info; done once at console init time
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* (maybe), but doesn't hurt to do twice.
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*/
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acp = sc->sc_acp = &apecs_configuration;
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apecs_init(acp);
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/* XXX SGMAP FOO */
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printf(": DECchip %s Core Logic chipset\n",
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acp->ac_memwidth == 128 ? "21072" : "21071");
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printf("%s: DC21071-CA pass %d, %d-bit memory bus\n",
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self->dv_xname, acp->ac_comanche_pass2 ? 2 : 1, acp->ac_memwidth);
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printf("%s: DC21071-DA pass %d\n", self->dv_xname,
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acp->ac_epic_pass2 ? 2 : 1);
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/* XXX print bcache size */
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if (!acp->ac_epic_pass2)
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printf("WARNING: 21071-DA NOT PASS2... NO BETS...\n");
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switch (hwrpb->rpb_type) {
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#if defined(DEC_2100_A50)
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case ST_DEC_2100_A50:
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pci_2100_a50_pickintr(acp);
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break;
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#endif
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default:
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panic("apecsattach: shouldn't be here, really...");
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}
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pba.pba_busname = "pci";
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pba.pba_bc = &acp->ac_bc;
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pba.pba_pc = &acp->ac_pc;
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pba.pba_bus = 0;
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config_found(self, &pba, apecsprint);
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}
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static int
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apecsprint(aux, pnp)
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void *aux;
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const char *pnp;
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{
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register struct pcibus_attach_args *pba = aux;
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/* only PCIs can attach to APECSes; easy. */
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if (pnp)
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printf("%s at %s", pba->pba_busname, pnp);
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printf(" bus %d", pba->pba_bus);
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return (UNCONF);
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}
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