1 /* $OpenBSD: autoconf.h,v 1.12 2003/06/02 23:27:54 millert Exp $ */ 2 /* $NetBSD: autoconf.h,v 1.20 1997/05/24 20:03:03 pk 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.h 8.2 (Berkeley) 9/30/93 42 */ 43 44 /* 45 * Autoconfiguration information. 46 */ 47 48 /* 49 * Most devices are configured according to information kept in 50 * the FORTH PROMs. In particular, we extract the `name', `reg', 51 * and `address' properties of each device attached to the mainbus; 52 * other drives may also use this information. The mainbus itself 53 * (which `is' the CPU, in some sense) gets just the node, with a 54 * fake name ("mainbus"). 55 */ 56 57 #define RA_MAXVADDR 8 /* max (virtual) addresses per device */ 58 #define RA_MAXREG 16 /* max # of register banks per device */ 59 #define RA_MAXINTR 8 /* max interrupts per device */ 60 61 struct romaux { 62 const char *ra_name; /* name from FORTH PROM */ 63 int ra_node; /* FORTH PROM node ID */ 64 void *ra_vaddrs[RA_MAXVADDR];/* ROM mapped virtual addresses */ 65 int ra_nvaddrs; /* # of ra_vaddrs[]s, may be 0 */ 66 #define ra_vaddr ra_vaddrs[0] /* compatibility */ 67 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 78 struct rom_intr { /* interrupt information: */ 79 int int_pri; /* priority (IPL) */ 80 int int_vec; /* vector (always 0?) */ 81 } ra_intr[RA_MAXINTR]; 82 int ra_nintr; /* number of interrupt info elements */ 83 84 struct bootpath *ra_bp; /* used for locating boot device */ 85 }; 86 87 struct rom_range { /* Only used on v3 PROMs */ 88 u_int32_t cspace; /* Client space */ 89 u_int32_t coffset; /* Client offset */ 90 u_int32_t pspace; /* Parent space */ 91 u_int32_t poffset; /* Parent offset */ 92 u_int32_t size; /* Size in bytes of this range */ 93 }; 94 95 96 struct confargs { 97 int ca_bustype; 98 struct romaux ca_ra; 99 int ca_slot; 100 int ca_offset; 101 }; 102 #define BUS_MAIN 0 103 #define BUS_OBIO 1 104 #define BUS_VME16 2 105 #define BUS_VME32 3 106 #define BUS_SBUS 4 107 #define BUS_XBOX 5 108 #define BUS_FGA 6 109 #define BUS_FGA_A16D8 7 110 #define BUS_FGA_A16D16 8 111 #define BUS_FGA_A16D32 9 112 #define BUS_FGA_A24D8 10 113 #define BUS_FGA_A24D16 11 114 #define BUS_FGA_A24D32 12 115 #define BUS_FGA_A32D8 13 116 #define BUS_FGA_A32D16 14 117 #define BUS_FGA_A32D32 15 118 119 /* 120 * mapiodev maps an I/O device to a virtual address, returning the address. 121 * mapdev does the real work: you can supply a special virtual address and 122 * it will use that instead of creating one, but you must only do this if 123 * you get it from ../sparc/vaddrs.h. 124 */ 125 void *mapdev(struct rom_reg *pa, int va, int offset, int size); 126 #define mapiodev(pa, offset, size) \ 127 mapdev(pa, 0, offset, size) 128 /* 129 * REG2PHYS is provided for drivers with a `d_mmap' function. 130 */ 131 #define REG2PHYS(rr, offset) \ 132 (((u_int)(rr)->rr_paddr + (offset)) | PMAP_IOENC((rr)->rr_iospace) ) 133 134 /* For VME and sun4/obio busses */ 135 void *bus_map(struct rom_reg *, int); 136 void bus_untmp(void); 137 138 /* 139 * The various getprop* functions obtain `properties' from the ROMs. 140 * getprop() obtains a property as a byte-sequence, and returns its 141 * length; the others convert or make some other guarantee. 142 */ 143 int getproplen(int node, char *name); 144 int getprop(int node, char *name, void *buf, int bufsiz); 145 char *getpropstring(int node, char *name); 146 int getpropint(int node, char *name, int deflt); 147 148 /* Frequently used options node */ 149 extern int optionsnode; 150 /* Machine type */ 151 extern char mainbus_model[30]; 152 153 /* 154 * The romprop function gets physical and virtual addresses from the PROM 155 * and fills in a romaux. It returns 1 on success, 0 if the physical 156 * address is not available as a "reg" property. 157 */ 158 int romprop(struct romaux *ra, const char *name, int node); 159 160 /* 161 * The matchbyname function is useful in drivers that are matched 162 * by romaux name, i.e., all `mainbus attached' devices. It expects 163 * its aux pointer to point to a pointer to the name (the address of 164 * a romaux structure suffices, for instance). 165 */ 166 struct device; 167 struct cfdata; 168 int matchbyname(struct device *, void *cf, void *aux); 169 170 /* 171 * `clockfreq' produces a printable representation of a clock frequency 172 * (this is just a frill). 173 */ 174 char *clockfreq(int freq); 175 176 /* 177 * Memory description arrays. Shared between pmap.c and autoconf.c; no 178 * one else should use this (except maybe mem.c, e.g., if we fix the VM to 179 * handle discontiguous physical memory). 180 */ 181 struct memarr { 182 u_int addr; 183 u_int len; 184 }; 185 int makememarr(struct memarr *, int max, int which); 186 #define MEMARR_AVAILPHYS 0 187 #define MEMARR_TOTALPHYS 1 188 189 /* Pass a string to the FORTH interpreter. May fail silently. */ 190 void rominterpret(char *); 191 192 /* Openprom V2 style boot path */ 193 struct bootpath { 194 char name[16]; /* name of this node */ 195 int val[3]; /* up to three optional values */ 196 struct device *dev; /* device that recognised this component */ 197 }; 198 199 struct bootpath *bootpath_store(int, struct bootpath *); 200 int sd_crazymap(int); 201 202 /* Parse a disk string into a dev_t, return device struct pointer */ 203 struct device *parsedisk(char *, int, int, dev_t *); 204 205 /* Establish a mountroot_hook, for benefit of floppy drive, mostly. */ 206 void mountroot_hook_establish(void (*)(struct device *), struct device *); 207 208 void bootstrap(void); 209 int firstchild(int); 210 int nextsibling(int); 211 void callrom(void); 212 struct device *getdevunit(char *, int); 213 void *findzs(int); 214 int romgetcursoraddr(int **, int **); 215 int findroot(void); 216 int findnode(int, const char *); 217 int opennode(char *); 218 int node_has_property(int, const char *); 219