1 /* $NetBSD: autoconf.h,v 1.7 1994/11/23 07:02:30 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)autoconf.h 8.2 (Berkeley) 9/30/93 45 */ 46 47 /* 48 * Autoconfiguration information. 49 */ 50 51 /* 52 * Most devices are configured according to information kept in 53 * the FORTH PROMs. In particular, we extract the `name', `reg', 54 * and `address' properties of each device attached to the mainbus; 55 * other drives may also use this information. The mainbus itself 56 * (which `is' the CPU, in some sense) gets just the node, with a 57 * fake name ("mainbus"). 58 */ 59 #define RA_MAXINTR 8 /* max interrupts per device */ 60 struct romaux { 61 const char *ra_name; /* name from FORTH PROM */ 62 int ra_node; /* FORTH PROM node ID */ 63 int ra_iospace; /* register space (obio, etc) */ 64 void *ra_paddr; /* register physical address */ 65 int ra_len; /* register length */ 66 void *ra_vaddr; /* ROM mapped virtual address, or 0 */ 67 struct rom_intr { /* interrupt information: */ 68 int int_pri; /* priority (IPL) */ 69 int int_vec; /* vector (always 0?) */ 70 } ra_intr[RA_MAXINTR]; 71 int ra_nintr; /* number of interrupt info elements */ 72 struct bootpath *ra_bp; /* used for locating boot device */ 73 }; 74 75 76 struct confargs { 77 int ca_bustype; 78 struct romaux ca_ra; 79 int ca_slot; 80 int ca_offset; 81 }; 82 #define BUS_MAIN 0 83 #define BUS_OBIO 1 84 #define BUS_VME16 2 85 #define BUS_VME32 3 86 #define BUS_SBUS 4 87 88 extern int bt2pmt[]; 89 90 /* 91 * The various getprop* functions obtain `properties' from the ROMs. 92 * getprop() obtains a property as a byte-sequence, and returns its 93 * length; the others convert or make some other guarantee. 94 */ 95 int getprop __P((int node, char *name, void *buf, int bufsiz)); 96 char *getpropstring __P((int node, char *name)); 97 int getpropint __P((int node, char *name, int deflt)); 98 99 /* Frequently used options node */ 100 extern int optionsnode; 101 102 /* 103 * The romprop function gets physical and virtual addresses from the PROM 104 * and fills in a romaux. It returns 1 on success, 0 if the physical 105 * address is not available as a "reg" property. 106 */ 107 int romprop __P((struct romaux *ra, const char *name, int node)); 108 109 /* 110 * The matchbyname function is useful in drivers that are matched 111 * by romaux name, i.e., all `mainbus attached' devices. It expects 112 * its aux pointer to point to a pointer to the name (the address of 113 * a romaux structure suffices, for instance). 114 */ 115 int matchbyname __P((struct device *, void *cf, void *aux)); 116 117 /* 118 * `clockfreq' produces a printable representation of a clock frequency 119 * (this is just a frill). 120 */ 121 char *clockfreq __P((int freq)); 122 123 /* 124 * mapiodev maps an I/O device to a virtual address, returning the address. 125 * mapdev does the real work: you can supply a special virtual address and 126 * it will use that instead of creating one, but you must only do this if 127 * you get it from ../sparc/vaddrs.h. 128 */ 129 void *mapdev __P((void *pa, int va, int size, int bustype)); 130 #define mapiodev(pa, size, bustype) mapdev(pa, 0, size, bustype) 131 132 /* 133 * Memory description arrays. Shared between pmap.c and autoconf.c; no 134 * one else should use this (except maybe mem.c, e.g., if we fix the VM to 135 * handle discontiguous physical memory). 136 */ 137 struct memarr { 138 u_int addr; 139 u_int len; 140 }; 141 int makememarr(struct memarr *, int max, int which); 142 #define MEMARR_AVAILPHYS 0 143 #define MEMARR_TOTALPHYS 1 144 145 /* Pass a string to the FORTH interpreter. May fail silently. */ 146 void rominterpret __P((char *)); 147 148 /* Openprom V2 style boot path */ 149 struct bootpath { 150 char name[8]; /* name of this node */ 151 int val[2]; /* up to two optional values */ 152 }; 153 154 struct device *bootdv; /* found during autoconfiguration */ 155 156 /* Parse a disk string into a dev_t, return device struct pointer */ 157 struct device *parsedisk __P((char *, int, int, dev_t *)); 158