/* $NetBSD: eisa.c,v 1.3 1996/03/02 01:09:37 cgd Exp $ */ /* * Copyright (c) 1995, 1996 Christopher G. Demetriou * 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 by Christopher G. Demetriou * for the NetBSD Project. * 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. */ /* * EISA Bus device * * Makes sure an EISA bus is present, and finds and attaches devices * living on it. */ #include #include #include #include #include #include #include /* XXX shouldn't use inb directly */ struct eisa_softc { struct device sc_dev; /* this is it, for now */ }; int eisamatch __P((struct device *, void *, void *)); void eisaattach __P((struct device *, struct device *, void *)); struct cfdriver eisacd = { NULL, "eisa", eisamatch, eisaattach, DV_DULL, sizeof(struct eisa_softc) }; int eisasubmatch __P((struct device *, void *, void *)); int eisaprint __P((void *, char *)); void eisa_devinfo __P((const char *, char *)); int eisamatch(parent, match, aux) struct device *parent; void *match, *aux; { struct cfdata *cf = match; struct eisabus_attach_args *eba = aux; if (strcmp(eba->eba_busname, cf->cf_driver->cd_name)) return (0); /* XXX check other indicators */ return (1); } int eisaprint(aux, pnp) void *aux; char *pnp; { register struct eisa_attach_args *ea = aux; char devinfo[256]; if (pnp) { eisa_devinfo(ea->ea_idstring, devinfo); printf("%s at %s", devinfo, pnp); } printf(" slot %d", ea->ea_slot); return (UNCONF); } int eisasubmatch(parent, match, aux) struct device *parent; void *match, *aux; { struct cfdata *cf = match; struct eisa_attach_args *ea = aux; if (cf->eisacf_slot != EISA_UNKNOWN_SLOT && cf->eisacf_slot != ea->ea_slot) return 0; return ((*cf->cf_driver->cd_match)(parent, match, aux)); } void eisaattach(parent, self, aux) struct device *parent, *self; void *aux; { struct eisa_softc *sc = (struct eisa_softc *)self; int slot; printf("\n"); /* * Search for and attach subdevices. * * Slot 0 is the "motherboard" slot, and the code attaching * the EISA bus should have already attached an ISA bus there. */ for (slot = 1; slot < EISA_MAX_SLOT; slot++) { struct eisa_attach_args ea; struct cfdata *cf; u_int slotaddr; int i; ea.ea_slot = slot; slotaddr = EISA_SLOT_ADDR(slot); #if 0 printf("%s slot %d: at 0x%x\n", sc->sc_dev.dv_xname, slot, slotaddr); #endif /* Get the vendor ID bytes */ for (i = 0; i < EISA_NVIDREGS; i++) ea.ea_vid[i] = inb(slotaddr + EISA_SLOTOFF_VID + i); /* Check for device existence */ if (EISA_VENDID_NODEV(ea.ea_vid)) { #if 0 printf("%s slot %d: no device\n", sc->sc_dev.dv_xname, slot); printf("\t(0x%x, 0x%x)\n", ea.ea_vid[0], ea.ea_vid[1]); #endif continue; } /* And check that the firmware didn't biff something badly */ if (EISA_VENDID_IDDELAY(ea.ea_vid)) { printf("%s slot %d: slot not configured by BIOS?\n", self->dv_xname, slot); continue; } /* Get the product ID bytes */ for (i = 0; i < EISA_NPIDREGS; i++) ea.ea_pid[i] = inb(slotaddr + EISA_SLOTOFF_PID + i); /* Create the ID string from the vendor and product IDs */ ea.ea_idstring[0] = EISA_VENDID_0(ea.ea_vid); ea.ea_idstring[1] = EISA_VENDID_1(ea.ea_vid); ea.ea_idstring[2] = EISA_VENDID_2(ea.ea_vid); ea.ea_idstring[3] = EISA_PRODID_0(ea.ea_pid); ea.ea_idstring[4] = EISA_PRODID_1(ea.ea_pid); ea.ea_idstring[5] = EISA_PRODID_2(ea.ea_pid); ea.ea_idstring[6] = EISA_PRODID_3(ea.ea_pid); ea.ea_idstring[7] = '\0'; /* sanity */ /* Attach matching device. */ config_found_sm(self, &ea, eisaprint, eisasubmatch); } } #ifdef EISAVERBOSE /* * Descriptions of of known vendors and devices ("products"). */ struct eisa_knowndev { int flags; const char *id, *name; }; #define EISA_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ #include #endif /* EISAVERBOSE */ void eisa_devinfo(id, cp) const char *id; char *cp; { const char *name; int onlyvendor; #ifdef EISAVERBOSE struct eisa_knowndev *edp; int match; const char *unmatched = "unknown device "; #else const char *unmatched = ""; #endif onlyvendor = 0; name = NULL; #ifdef EISAVERBOSE /* find the device in the table, if possible. */ edp = eisa_knowndevs; while (edp->id != NULL) { /* check this entry for a match */ if ((edp->flags & EISA_KNOWNDEV_NOPROD) != 0) match = !strncmp(edp->id, id, 3); else match = !strcmp(edp->id, id); if (match) { name = edp->name; onlyvendor = (edp->flags & EISA_KNOWNDEV_NOPROD) != 0; break; } edp++; } #endif if (name == NULL) cp += sprintf(cp, "%s%s", unmatched, id); else if (onlyvendor) /* never if not EISAVERBOSE */ cp += sprintf(cp, "unknown %s device %s", name, id); else cp += sprintf(cp, "%s", name); }