eisa.c revision 1.1
1 /* $NetBSD: eisa.c,v 1.1 1996/02/27 00:21:00 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996 Christopher G. Demetriou 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christopher G. Demetriou 18 * for the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * EISA Bus device 36 * 37 * Makes sure an EISA bus is present, and finds and attaches devices 38 * living on it. 39 */ 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 45 #include <dev/eisa/eisareg.h> 46 #include <dev/eisa/eisavar.h> 47 #include <dev/eisa/eisadevs.h> 48 49 #include <machine/pio.h> /* XXX shouldn't use inb directly */ 50 51 struct eisa_softc { 52 struct device sc_dev; /* this is it, for now */ 53 }; 54 55 int eisamatch __P((struct device *, void *, void *)); 56 void eisaattach __P((struct device *, struct device *, void *)); 57 58 struct cfdriver eisacd = { 59 NULL, "eisa", eisamatch, eisaattach, DV_DULL, sizeof(struct eisa_softc) 60 }; 61 62 int eisasubmatch __P((struct device *, void *, void *)); 63 int eisaprint __P((void *, char *)); 64 void eisa_devinfo __P((const char *, char *)); 65 66 int 67 eisamatch(parent, match, aux) 68 struct device *parent; 69 void *match, *aux; 70 { 71 struct cfdata *cf = match; 72 struct eisabus_attach_args *eba = aux; 73 74 if (strcmp(eba->eba_busname, cf->cf_driver->cd_name)) 75 return (0); 76 77 /* XXX check other indicators */ 78 79 return (1); 80 } 81 82 int 83 eisaprint(aux, eisa) 84 void *aux; 85 char *eisa; 86 { 87 register struct eisa_attach_args *ea = aux; 88 89 printf(" slot %d", ea->ea_slot); 90 return (UNCONF); 91 } 92 93 int 94 eisasubmatch(parent, match, aux) 95 struct device *parent; 96 void *match, *aux; 97 { 98 struct cfdata *cf = match; 99 struct eisa_attach_args *ea = aux; 100 101 if (cf->eisacf_slot != EISA_UNKNOWN_SLOT && 102 cf->eisacf_slot != ea->ea_slot) 103 return 0; 104 return ((*cf->cf_driver->cd_match)(parent, match, aux)); 105 } 106 107 void 108 eisaattach(parent, self, aux) 109 struct device *parent, *self; 110 void *aux; 111 { 112 struct eisa_softc *sc = (struct eisa_softc *)self; 113 int slot; 114 115 printf("\n"); 116 117 /* 118 * Search for and attach subdevices. 119 * 120 * Slot 0 is the "motherboard" slot, and the code attaching 121 * the EISA bus should have already attached an ISA bus there. 122 */ 123 for (slot = 1; slot < EISA_MAX_SLOT; slot++) { 124 struct eisa_attach_args ea; 125 struct cfdata *cf; 126 u_int slotaddr; 127 int i; 128 129 ea.ea_slot = slot; 130 slotaddr = EISA_SLOT_ADDR(slot); 131 #if 0 132 printf("%s slot %d: at 0x%x\n", sc->sc_dev.dv_xname, slot, 133 slotaddr); 134 #endif 135 136 /* Get the vendor ID bytes */ 137 for (i = 0; i < EISA_NVIDREGS; i++) 138 ea.ea_vid[i] = inb(slotaddr + EISA_SLOTOFF_VID + i); 139 140 /* Check for device existence */ 141 if (EISA_VENDID_NODEV(ea.ea_vid)) { 142 #if 0 143 printf("%s slot %d: no device\n", sc->sc_dev.dv_xname, 144 slot); 145 printf("\t(0x%x, 0x%x)\n", ea.ea_vid[0], 146 ea.ea_vid[1]); 147 #endif 148 continue; 149 } 150 151 /* And check that the firmware didn't biff something badly */ 152 if (EISA_VENDID_IDDELAY(ea.ea_vid)) { 153 printf("%s slot %d: slot not configured by BIOS?\n", 154 self->dv_xname, slot); 155 continue; 156 } 157 158 /* Get the product ID bytes */ 159 for (i = 0; i < EISA_NPIDREGS; i++) 160 ea.ea_pid[i] = inb(slotaddr + EISA_SLOTOFF_PID + i); 161 162 /* Create the ID string from the vendor and product IDs */ 163 ea.ea_idstring[0] = EISA_VENDID_0(ea.ea_vid); 164 ea.ea_idstring[1] = EISA_VENDID_1(ea.ea_vid); 165 ea.ea_idstring[2] = EISA_VENDID_2(ea.ea_vid); 166 ea.ea_idstring[3] = EISA_PRODID_0(ea.ea_pid); 167 ea.ea_idstring[4] = EISA_PRODID_1(ea.ea_pid); 168 ea.ea_idstring[5] = EISA_PRODID_2(ea.ea_pid); 169 ea.ea_idstring[6] = EISA_PRODID_3(ea.ea_pid); 170 ea.ea_idstring[7] = '\0'; /* sanity */ 171 172 /* Go hunt for devices that match. */ 173 if ((cf = config_search(eisasubmatch, self, &ea)) != NULL) 174 config_attach(self, cf, &ea, eisaprint); 175 else { 176 char devinfo[256]; 177 178 eisa_devinfo(ea.ea_idstring, devinfo); 179 printf("%s slot %d: %s not configured\n", 180 self->dv_xname, slot, devinfo); 181 } 182 } 183 } 184 185 #ifdef EISAVERBOSE 186 /* 187 * Descriptions of of known vendors and devices ("products"). 188 */ 189 struct eisa_knowndev { 190 int flags; 191 const char *id, *name; 192 }; 193 #define EISA_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ 194 195 #include <dev/eisa/eisadevs_data.h> 196 #endif /* EISAVERBOSE */ 197 198 void 199 eisa_devinfo(id, cp) 200 const char *id; 201 char *cp; 202 { 203 const char *name; 204 int onlyvendor; 205 #ifdef EISAVERBOSE 206 struct eisa_knowndev *edp; 207 int match; 208 #endif 209 210 onlyvendor = 0; 211 name = NULL; 212 213 #ifdef EISAVERBOSE 214 /* find the device in the table, if possible. */ 215 edp = eisa_knowndevs; 216 while (edp->id != NULL) { 217 /* check this entry for a match */ 218 if ((edp->flags & EISA_KNOWNDEV_NOPROD) != 0) 219 match = !strncmp(edp->id, id, 3); 220 else 221 match = !strcmp(edp->id, id); 222 if (match) { 223 name = edp->name; 224 onlyvendor = (edp->flags & EISA_KNOWNDEV_NOPROD) != 0; 225 break; 226 } 227 edp++; 228 } 229 #endif 230 231 if (name == NULL) 232 cp += sprintf(cp, "unknown device %s", id); 233 else if (onlyvendor) 234 cp += sprintf(cp, "unknown %s device %s", name, id); 235 else 236 cp += sprintf(cp, "%s", name); 237 } 238
Indexes created Sun Sep 28 16:09:52 GMT 2025