/* $OpenBSD: pcctwo.c,v 1.5 1996/11/23 21:46:00 kstailey 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed under OpenBSD by * Theo de Raadt for Willowglen Singapore. * 4. The name of the author 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 ``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. */ /* * VME16x 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/callout.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/syslog.h> #include <sys/fcntl.h> #include <sys/device.h> #include <machine/cpu.h> #include <machine/autoconf.h> #include <dev/cons.h> #include <mvme68k/dev/pcctworeg.h> struct pcctwosoftc { struct device sc_dev; void *sc_vaddr; /* PCC2 space */ void *sc_paddr; struct pcctworeg *sc_pcc2; /* the actual registers */ }; void pcctwoattach __P((struct device *, struct device *, void *)); int pcctwomatch __P((struct device *, void *, void *)); struct cfattach pcctwo_ca = { sizeof(struct pcctwosoftc), pcctwomatch, pcctwoattach }; struct cfdriver pcctwo_cd = { NULL, "pcctwo", DV_DULL, 0 }; struct pcctworeg *sys_pcc2 = NULL; int pcctwomatch(parent, vcf, args) struct device *parent; void *vcf, *args; { struct cfdata *cf = vcf; struct confargs *ca = args; struct pcctworeg *pcc2; /* the PCC2 only exists on MVME16x's except the 162, right? */ if (cputyp == CPU_162 || cputyp == CPU_147) return (0); pcc2 = (struct pcctworeg *)(IIOV(ca->ca_paddr) + PCC2_PCC2CHIP_OFF); if (badvaddr(pcc2, 1) || pcc2->pcc2_chipid != PCC2_CHIPID) return (0); return (1); } 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 pcctwosoftc *sc = (struct pcctwosoftc *)parent; struct confargs *ca = args; struct confargs oca; if (parent->dv_cfdata->cf_driver->cd_indirect) { printf(" indirect devices not supported\n"); return 0; } bzero(&oca, sizeof oca); oca.ca_offset = cf->cf_loc[0]; oca.ca_ipl = cf->cf_loc[1]; if (oca.ca_offset != -1 && ISIIOVA(sc->sc_vaddr + oca.ca_offset)) { oca.ca_vaddr = sc->sc_vaddr + oca.ca_offset; oca.ca_paddr = sc->sc_paddr + oca.ca_offset; } else { oca.ca_vaddr = (void *)-1; oca.ca_paddr = (void *)-1; } oca.ca_bustype = BUS_PCCTWO; oca.ca_master = (void *)sc->sc_pcc2; 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); } void pcctwoattach(parent, self, args) struct device *parent, *self; void *args; { struct confargs *ca = args; struct pcctwosoftc *sc = (struct pcctwosoftc *)self; int i; if (sys_pcc2) panic("pcc2 already attached!"); /* * since we know ourself to land in intiobase land, * we must adjust our address */ sc->sc_paddr = ca->ca_paddr; sc->sc_vaddr = (void *)IIOV(sc->sc_paddr); sc->sc_pcc2 = (struct pcctworeg *)(sc->sc_vaddr + PCC2_PCC2CHIP_OFF); sys_pcc2 = sc->sc_pcc2; printf(": rev %d\n", sc->sc_pcc2->pcc2_chiprev); sc->sc_pcc2->pcc2_vecbase = PCC2_VECBASE; sc->sc_pcc2->pcc2_genctl |= PCC2_GENCTL_IEN; /* global irq enable */ config_search(pcctwo_scan, self, args); } /* * PCC2 interrupts land in a PCC2_NVEC sized hole starting at PCC2_VECBASE */ int pcctwointr_establish(vec, ih) int vec; struct intrhand *ih; { if (vec >= PCC2_NVEC) { printf("pcctwo: illegal vector: 0x%x\n", vec); panic("pcctwointr_establish"); } return (intr_establish(PCC2_VECBASE+vec, ih)); }