Annotation of sys/arch/alpha/alpha/autoconf.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: autoconf.c,v 1.31 2007/06/01 19:25:09 deraadt Exp $ */
! 2: /* $NetBSD: autoconf.c,v 1.16 1996/11/13 21:13:04 cgd Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1992, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * This software was developed by the Computer Systems Engineering group
! 9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
! 10: * contributed to Berkeley.
! 11: *
! 12: * All advertising materials mentioning features or use of this software
! 13: * must display the following acknowledgement:
! 14: * This product includes software developed by the University of
! 15: * California, Lawrence Berkeley Laboratory.
! 16: *
! 17: * Redistribution and use in source and binary forms, with or without
! 18: * modification, are permitted provided that the following conditions
! 19: * are met:
! 20: * 1. Redistributions of source code must retain the above copyright
! 21: * notice, this list of conditions and the following disclaimer.
! 22: * 2. Redistributions in binary form must reproduce the above copyright
! 23: * notice, this list of conditions and the following disclaimer in the
! 24: * documentation and/or other materials provided with the distribution.
! 25: * 3. Neither the name of the University nor the names of its contributors
! 26: * may be used to endorse or promote products derived from this software
! 27: * without specific prior written permission.
! 28: *
! 29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 39: * SUCH DAMAGE.
! 40: *
! 41: * @(#)autoconf.c 8.4 (Berkeley) 10/1/93
! 42: */
! 43:
! 44: #include <sys/param.h>
! 45: #include <sys/systm.h>
! 46: #include <sys/buf.h>
! 47: #include <sys/disklabel.h>
! 48: #include <sys/conf.h>
! 49: #include <sys/reboot.h>
! 50: #include <sys/device.h>
! 51:
! 52: #include <uvm/uvm_extern.h>
! 53:
! 54: #include <machine/autoconf.h>
! 55: #include <machine/rpb.h>
! 56: #include <machine/prom.h>
! 57: #include <machine/cpuconf.h>
! 58: #include <machine/intr.h>
! 59:
! 60: #include <dev/cons.h>
! 61:
! 62: extern char root_device[17]; /* XXX */
! 63:
! 64: struct device *booted_device;
! 65: int booted_partition;
! 66: struct bootdev_data *bootdev_data;
! 67: char boot_dev[128];
! 68:
! 69: void parse_prom_bootdev(void);
! 70: int atoi(char *);
! 71:
! 72: /*
! 73: * cpu_configure:
! 74: * called at boot time, configure all devices on system
! 75: */
! 76: void
! 77: cpu_configure()
! 78: {
! 79: parse_prom_bootdev();
! 80: softintr_init();
! 81:
! 82: /*
! 83: * Disable interrupts during autoconfiguration. splhigh() won't
! 84: * work, because it simply _raises_ the IPL, so if machine checks
! 85: * are disabled, they'll stay disabled. Machine checks are needed
! 86: * during autoconfig.
! 87: */
! 88: (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH);
! 89: if (config_rootfound("mainbus", "mainbus") == NULL)
! 90: panic("no mainbus found");
! 91: (void)spl0();
! 92:
! 93: hwrpb_restart_setup();
! 94: cold = 0;
! 95: }
! 96:
! 97: void
! 98: diskconf(void)
! 99: {
! 100: struct device *bootdv;
! 101: int bootpartition;
! 102:
! 103: if (booted_device == NULL)
! 104: printf("WARNING: can't figure what device matches \"%s\"\n",
! 105: boot_dev);
! 106: bootdv = booted_device;
! 107: bootpartition = booted_partition;
! 108:
! 109: setroot(bootdv, bootpartition, RB_USERREQ);
! 110: dumpconf();
! 111: }
! 112:
! 113: void
! 114: parse_prom_bootdev()
! 115: {
! 116: static char hacked_boot_dev[128];
! 117: static struct bootdev_data bd;
! 118: char *cp, *scp, *boot_fields[8];
! 119: int i, done;
! 120:
! 121: booted_device = NULL;
! 122: booted_partition = 0;
! 123: bootdev_data = NULL;
! 124:
! 125: bcopy(bootinfo.booted_dev, hacked_boot_dev, sizeof hacked_boot_dev);
! 126: #if 0
! 127: printf("parse_prom_bootdev: boot dev = \"%s\"\n", boot_dev);
! 128: #endif
! 129:
! 130: i = 0;
! 131: scp = cp = hacked_boot_dev;
! 132: for (done = 0; !done; cp++) {
! 133: if (*cp != ' ' && *cp != '\0')
! 134: continue;
! 135: if (*cp == '\0')
! 136: done = 1;
! 137:
! 138: *cp = '\0';
! 139: boot_fields[i++] = scp;
! 140: scp = cp + 1;
! 141: if (i == 8)
! 142: done = 1;
! 143: }
! 144: if (i != 8)
! 145: return; /* doesn't look like anything we know! */
! 146:
! 147: #if 0
! 148: printf("i = %d, done = %d\n", i, done);
! 149: for (i--; i >= 0; i--)
! 150: printf("%d = %s\n", i, boot_fields[i]);
! 151: #endif
! 152:
! 153: bd.protocol = boot_fields[0];
! 154: bd.bus = atoi(boot_fields[1]);
! 155: bd.slot = atoi(boot_fields[2]);
! 156: bd.channel = atoi(boot_fields[3]);
! 157: bd.remote_address = boot_fields[4];
! 158: bd.unit = atoi(boot_fields[5]);
! 159: bd.boot_dev_type = atoi(boot_fields[6]);
! 160: bd.ctrl_dev_type = boot_fields[7];
! 161:
! 162: #if 0
! 163: printf("parsed: proto = %s, bus = %d, slot = %d, channel = %d,\n",
! 164: bd.protocol, bd.bus, bd.slot, bd.channel);
! 165: printf("\tremote = %s, unit = %d, dev_type = %d, ctrl_type = %s\n",
! 166: bd.remote_address, bd.unit, bd.boot_dev_type, bd.ctrl_dev_type);
! 167: #endif
! 168:
! 169: bootdev_data = &bd;
! 170: }
! 171:
! 172: int
! 173: atoi(s)
! 174: char *s;
! 175: {
! 176: int n, neg;
! 177:
! 178: n = 0;
! 179: neg = 0;
! 180:
! 181: while (*s == '-') {
! 182: s++;
! 183: neg = !neg;
! 184: }
! 185:
! 186: while (*s != '\0') {
! 187: if (*s < '0' || *s > '9')
! 188: break;
! 189:
! 190: n = (10 * n) + (*s - '0');
! 191: s++;
! 192: }
! 193:
! 194: return (neg ? -n : n);
! 195: }
! 196:
! 197: void
! 198: device_register(dev, aux)
! 199: struct device *dev;
! 200: void *aux;
! 201: {
! 202: if (bootdev_data == NULL) {
! 203: /*
! 204: * There is no hope.
! 205: */
! 206: return;
! 207: }
! 208:
! 209: if (platform.device_register)
! 210: (*platform.device_register)(dev, aux);
! 211: }
! 212:
! 213: struct nam2blk nam2blk[] = {
! 214: { "st", 2 },
! 215: { "cd", 3 },
! 216: { "fd", 4 },
! 217: { "rd", 6 },
! 218: { "sd", 8 },
! 219: { "wd", 0 },
! 220: { "raid", 16 },
! 221: { NULL, -1 }
! 222: };
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