Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 | /* $Id: sgiarcs.h,v 1.2 1998/07/08 16:01:57 ralf Exp $ * * SGI ARCS firmware interface defines. * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) */ #ifndef _MIPS_SGIARCS_H #define _MIPS_SGIARCS_H /* Various ARCS error codes. */ #define PROM_ESUCCESS 0x00 #define PROM_E2BIG 0x01 #define PROM_EACCESS 0x02 #define PROM_EAGAIN 0x03 #define PROM_EBADF 0x04 #define PROM_EBUSY 0x05 #define PROM_EFAULT 0x06 #define PROM_EINVAL 0x07 #define PROM_EIO 0x08 #define PROM_EISDIR 0x09 #define PROM_EMFILE 0x0a #define PROM_EMLINK 0x0b #define PROM_ENAMETOOLONG 0x0c #define PROM_ENODEV 0x0d #define PROM_ENOENT 0x0e #define PROM_ENOEXEC 0x0f #define PROM_ENOMEM 0x10 #define PROM_ENOSPC 0x11 #define PROM_ENOTDIR 0x12 #define PROM_ENOTTY 0x13 #define PROM_ENXIO 0x14 #define PROM_EROFS 0x15 /* SGI ARCS specific errno's. */ #define PROM_EADDRNOTAVAIL 0x1f #define PROM_ETIMEDOUT 0x20 #define PROM_ECONNABORTED 0x21 #define PROM_ENOCONNECT 0x22 /* Device classes, types, and identifiers for prom * device inventory queries. */ enum linux_devclass { system, processor, cache, adapter, controller, peripheral, memory }; enum linux_devtypes { /* Generic stuff. */ Arc, Cpu, Fpu, /* Primary insn and data caches. */ picache, pdcache, /* Secondary insn, data, and combined caches. */ sicache, sdcache, sccache, memdev, eisa_adapter, tc_adapter, scsi_adapter, dti_adapter, multifunc_adapter, dsk_controller, tp_controller, cdrom_controller, worm_controller, serial_controller, net_controller, disp_controller, parallel_controller, ptr_controller, kbd_controller, audio_controller, misc_controller, disk_peripheral, flpy_peripheral, tp_peripheral, modem_peripheral, monitor_peripheral, printer_peripheral, ptr_peripheral, kbd_peripheral, term_peripheral, line_peripheral, net_peripheral, misc_peripheral, anon }; enum linux_identifier { bogus, ronly, removable, consin, consout, input, output }; /* A prom device tree component. */ struct linux_component { enum linux_devclass class; /* node class */ enum linux_devtypes type; /* node type */ enum linux_identifier iflags; /* node flags */ unsigned short vers; /* node version */ unsigned short rev; /* node revision */ unsigned long key; /* completely magic */ unsigned long amask; /* XXX affinity mask??? */ unsigned long cdsize; /* size of configuration data */ unsigned long ilen; /* length of string identifier */ char *iname; /* string identifier */ }; typedef struct linux_component pcomponent; struct linux_sysid { char vend[8], prod[8]; }; /* ARCS prom memory descriptors. */ enum linux_memtypes { eblock, /* exception block */ rvpage, /* ARCS romvec page */ fcontig, /* Contiguous and free */ free, /* Generic free memory */ bmem, /* Borken memory, don't use */ prog, /* A loaded program resides here */ atmp, /* ARCS temporary storage area, wish Sparc OpenBoot told this */ aperm, /* ARCS permanent storage... */ }; struct linux_mdesc { enum linux_memtypes type; unsigned long base; unsigned long pages; }; /* Time of day descriptor. */ struct linux_tinfo { unsigned short yr; unsigned short mnth; unsigned short day; unsigned short hr; unsigned short min; unsigned short sec; unsigned short msec; }; /* ARCS virtual dirents. */ struct linux_vdirent { unsigned long namelen; unsigned char attr; char fname[32]; /* XXX imperical, should be a define */ }; /* Other stuff for files. */ enum linux_omode { rdonly, wronly, rdwr, wronly_creat, rdwr_creat, wronly_ssede, rdwr_ssede, dirent, dirent_creat }; enum linux_seekmode { absolute, relative }; enum linux_mountops { media_load, media_unload }; /* This prom has a bolixed design. */ struct linux_bigint { #ifdef __MIPSEL__ unsigned long lo; long hi; #else /* !(__MIPSEL__) */ long hi; unsigned long lo; #endif }; struct linux_finfo { struct linux_bigint begin; struct linux_bigint end; struct linux_bigint cur; enum linux_devtypes dtype; unsigned long namelen; unsigned char attr; char name[32]; /* XXX imperical, should be define */ }; struct linux_romvec { /* Load an executable image. */ long (*load)(char *file, unsigned long end, unsigned long *start_pc, unsigned long *end_addr); /* Invoke a standalong image. */ long (*invoke)(unsigned long startpc, unsigned long sp, long argc, char **argv, char **envp); /* Load and begin execution of a standalong image. */ long (*exec)(char *file, long argc, char **argv, char **envp); void (*halt)(void) __attribute__((noreturn)); /* Halt the machine. */ void (*pdown)(void) __attribute__((noreturn)); /* Power down the machine. */ void (*restart)(void) __attribute__((noreturn)); /* XXX soft reset??? */ void (*reboot)(void) __attribute__((noreturn)); /* Reboot the machine. */ void (*imode)(void) __attribute__((noreturn)); /* Enter PROM interactive mode. */ int _unused1; /* padding */ /* PROM device tree interface. */ pcomponent *(*next_component)(pcomponent *this); pcomponent *(*child_component)(pcomponent *this); pcomponent *(*parent_component)(pcomponent *this); long (*component_data)(void *opaque_data, pcomponent *this); pcomponent *(*child_add)(pcomponent *this, pcomponent *tmp, void *opaque_data); long (*comp_del)(pcomponent *this); pcomponent *(*component_by_path)(char *file); /* Misc. stuff. */ long (*cfg_save)(void); struct linux_sysid *(*get_sysid)(void); /* Probing for memory. */ struct linux_mdesc *(*get_mdesc)(struct linux_mdesc *curr); long _unused2; /* padding */ struct linux_tinfo *(*get_tinfo)(void); unsigned long (*get_rtime)(void); /* File type operations. */ long (*get_vdirent)(unsigned long fd, struct linux_vdirent *entry, unsigned long num, unsigned long *count); long (*open)(char *file, enum linux_omode mode, unsigned long *fd); long (*close)(unsigned long fd); long (*read)(unsigned long fd, void *buffer, unsigned long num, unsigned long *count); long (*get_rstatus)(unsigned long fd); long (*write)(unsigned long fd, void *buffer, unsigned long num, unsigned long *count); long (*seek)(unsigned long fd, struct linux_bigint *offset, enum linux_seekmode smode); long (*mount)(char *file, enum linux_mountops op); /* Dealing with firmware environment variables. */ char *(*get_evar)(char *name); long (*set_evar)(char *name, char *value); long (*get_finfo)(unsigned long fd, struct linux_finfo *buf); long (*set_finfo)(unsigned long fd, unsigned long flags, unsigned long mask); /* Miscellaneous. */ void (*cache_flush)(void); }; /* The SGI ARCS parameter block is in a fixed location for standalone * programs to access PROM facilities easily. */ struct linux_promblock { long magic; /* magic cookie */ #define PROMBLOCK_MAGIC 0x53435241 unsigned long len; /* length of parm block */ unsigned short ver; /* ARCS firmware version */ unsigned short rev; /* ARCS firmware revision */ long *rs_block; /* Restart block. */ long *dbg_block; /* Debug block. */ long *gevect; /* XXX General vector??? */ long *utlbvect; /* XXX UTLB vector??? */ unsigned long rveclen; /* Size of romvec struct. */ struct linux_romvec *romvec; /* Function interface. */ unsigned long pveclen; /* Length of private vector. */ long *pvector; /* Private vector. */ long adap_cnt; /* Adapter count. */ long adap_typ0; /* First adapter type. */ long adap_vcnt0; /* Adapter 0 vector count. */ long *adap_vector; /* Adapter 0 vector ptr. */ long adap_typ1; /* Second adapter type. */ long adap_vcnt1; /* Adapter 1 vector count. */ long *adap_vector1; /* Adapter 1 vector ptr. */ /* More adapter vectors go here... */ }; #define PROMBLOCK ((struct linux_promblock *)0xA0001000UL) #define ROMVECTOR ((PROMBLOCK)->romvec) /* Cache layout parameter block. */ union linux_cache_key { struct param { #ifdef __MIPSEL__ unsigned short size; unsigned char lsize; unsigned char bsize; #else /* !(__MIPSEL__) */ unsigned char bsize; unsigned char lsize; unsigned short size; #endif } info; unsigned long allinfo; }; /* Configuration data. */ struct linux_cdata { char *name; int mlen; enum linux_devtypes type; }; /* Common SGI ARCS firmware file descriptors. */ #define SGIPROM_STDIN 0 #define SGIPROM_STDOUT 1 /* Common SGI ARCS firmware file types. */ #define SGIPROM_ROFILE 0x01 /* read-only file */ #define SGIPROM_HFILE 0x02 /* hidden file */ #define SGIPROM_SFILE 0x04 /* System file */ #define SGIPROM_AFILE 0x08 /* Archive file */ #define SGIPROM_DFILE 0x10 /* Directory file */ #define SGIPROM_DELFILE 0x20 /* Deleted file */ /* SGI ARCS boot record information. */ struct sgi_partition { unsigned char flag; #define SGIPART_UNUSED 0x00 #define SGIPART_ACTIVE 0x80 unsigned char shead, ssect, scyl; /* unused */ unsigned char systype; /* OS type, Irix or NT */ unsigned char ehead, esect, ecyl; /* unused */ unsigned char rsect0, rsect1, rsect2, rsect3; unsigned char tsect0, tsect1, tsect2, tsect3; }; #define SGIBBLOCK_MAGIC 0xaa55 #define SGIBBLOCK_MAXPART 0x0004 struct sgi_bootblock { unsigned char _unused[446]; struct sgi_partition partitions[SGIBBLOCK_MAXPART]; unsigned short magic; }; /* BIOS parameter block. */ struct sgi_bparm_block { unsigned short bytes_sect; /* bytes per sector */ unsigned char sect_clust; /* sectors per cluster */ unsigned short sect_resv; /* reserved sectors */ unsigned char nfats; /* # of allocation tables */ unsigned short nroot_dirents; /* # of root directory entries */ unsigned short sect_volume; /* sectors in volume */ unsigned char media_type; /* media descriptor */ unsigned short sect_fat; /* sectors per allocation table */ unsigned short sect_track; /* sectors per track */ unsigned short nheads; /* # of heads */ unsigned short nhsects; /* # of hidden sectors */ }; struct sgi_bsector { unsigned char jmpinfo[3]; unsigned char manuf_name[8]; struct sgi_bparm_block info; }; /* Debugging block used with SGI symmon symbolic debugger. */ #define SMB_DEBUG_MAGIC 0xfeeddead struct linux_smonblock { unsigned long magic; void (*handler)(void); /* Breakpoint routine. */ unsigned long dtable_base; /* Base addr of dbg table. */ int (*printf)(const char *fmt, ...); unsigned long btable_base; /* Breakpoint table. */ unsigned long mpflushreqs; /* SMP cache flush request list. */ unsigned long ntab; /* Name table. */ unsigned long stab; /* Symbol table. */ int smax; /* Max # of symbols. */ }; #endif /* !(_MIPS_SGIARCS_H) */ |