1 /* $NetBSD: autoconf.h,v 1.9 1995/03/08 15:51:03 pk 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_MAXVADDR 4 /* max (virtual) addresses per device */ 60 #define RA_MAXREG 2 /* max # of register banks per device */ 61 #define RA_MAXINTR 8 /* max interrupts per device */ 62 struct romaux { 63 const char *ra_name; /* name from FORTH PROM */ 64 int ra_node; /* FORTH PROM node ID */ 65 void *ra_vaddrs[RA_MAXVADDR];/* ROM mapped virtual addresses */ 66 int ra_nvaddrs; /* # of ra_vaddrs[]s, may be 0 */ 67 #define ra_vaddr ra_vaddrs[0] /* compatibility */ 68 struct rom_reg { 69 int rr_iospace; /* register space (obio, etc) */ 70 void *rr_paddr; /* register physical address */ 71 int rr_len; /* register length */ 72 } ra_reg[RA_MAXREG]; 73 int ra_nreg; /* # of ra_reg[]s */ 74 #define ra_iospace ra_reg[0].rr_iospace 75 #define ra_paddr ra_reg[0].rr_paddr 76 #define ra_len ra_reg[0].rr_len 77 struct rom_intr { /* interrupt information: */ 78 int int_pri; /* priority (IPL) */ 79 int int_vec; /* vector (always 0?) */ 80 } ra_intr[RA_MAXINTR]; 81 int ra_nintr; /* number of interrupt info elements */ 82 struct bootpath *ra_bp; /* used for locating boot device */ 83 }; 84 85 86 struct confargs { 87 int ca_bustype; 88 struct romaux ca_ra; 89 int ca_slot; 90 int ca_offset; 91 }; 92 #define BUS_MAIN 0 93 #define BUS_OBIO 1 94 #define BUS_VME16 2 95 #define BUS_VME32 3 96 #define BUS_SBUS 4 97 98 extern int bt2pmt[]; 99 100 /* 101 * The various getprop* functions obtain `properties' from the ROMs. 102 * getprop() obtains a property as a byte-sequence, and returns its 103 * length; the others convert or make some other guarantee. 104 */ 105 int getprop __P((int node, char *name, void *buf, int bufsiz)); 106 char *getpropstring __P((int node, char *name)); 107 int getpropint __P((int node, char *name, int deflt)); 108 109 /* Frequently used options node */ 110 extern int optionsnode; 111 112 /* 113 * The romprop function gets physical and virtual addresses from the PROM 114 * and fills in a romaux. It returns 1 on success, 0 if the physical 115 * address is not available as a "reg" property. 116 */ 117 int romprop __P((struct romaux *ra, const char *name, int node)); 118 119 /* 120 * The matchbyname function is useful in drivers that are matched 121 * by romaux name, i.e., all `mainbus attached' devices. It expects 122 * its aux pointer to point to a pointer to the name (the address of 123 * a romaux structure suffices, for instance). 124 */ 125 int matchbyname __P((struct device *, void *cf, void *aux)); 126 127 /* 128 * `clockfreq' produces a printable representation of a clock frequency 129 * (this is just a frill). 130 */ 131 char *clockfreq __P((int freq)); 132 133 /* 134 * mapiodev maps an I/O device to a virtual address, returning the address. 135 * mapdev does the real work: you can supply a special virtual address and 136 * it will use that instead of creating one, but you must only do this if 137 * you get it from ../sparc/vaddrs.h. 138 */ 139 void *mapdev __P((void *pa, int va, int size, int bustype)); 140 #define mapiodev(pa, size, bustype) mapdev(pa, 0, size, bustype) 141 142 /* 143 * Memory description arrays. Shared between pmap.c and autoconf.c; no 144 * one else should use this (except maybe mem.c, e.g., if we fix the VM to 145 * handle discontiguous physical memory). 146 */ 147 struct memarr { 148 u_int addr; 149 u_int len; 150 }; 151 int makememarr(struct memarr *, int max, int which); 152 #define MEMARR_AVAILPHYS 0 153 #define MEMARR_TOTALPHYS 1 154 155 /* Pass a string to the FORTH interpreter. May fail silently. */ 156 void rominterpret __P((char *)); 157 158 /* Openprom V2 style boot path */ 159 struct bootpath { 160 char name[8]; /* name of this node */ 161 int val[2]; /* up to two optional values */ 162 }; 163 164 struct device *bootdv; /* found during autoconfiguration */ 165 166 /* Parse a disk string into a dev_t, return device struct pointer */ 167 struct device *parsedisk __P((char *, int, int, dev_t *)); 168