| 1 | /* The common simulator framework for GDB, the GNU Debugger. |
| 2 | |
| 3 | Copyright 2002-2020 Free Software Foundation, Inc. |
| 4 | |
| 5 | Contributed by Andrew Cagney and Red Hat. |
| 6 | |
| 7 | This file is part of GDB. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 21 | |
| 22 | |
| 23 | #include "hw-main.h" |
| 24 | #include "hw-base.h" |
| 25 | #include "hw-tree.h" |
| 26 | |
| 27 | #include "sim-io.h" |
| 28 | #include "sim-assert.h" |
| 29 | |
| 30 | #ifdef HAVE_STDLIB_H |
| 31 | #include <stdlib.h> |
| 32 | #endif |
| 33 | |
| 34 | #ifdef HAVE_STRING_H |
| 35 | #include <string.h> |
| 36 | #else |
| 37 | #ifdef HAVE_STRINGS_H |
| 38 | #include <strings.h> |
| 39 | #endif |
| 40 | #endif |
| 41 | |
| 42 | #include <ctype.h> |
| 43 | |
| 44 | /* manipulate/lookup device names */ |
| 45 | |
| 46 | typedef struct _name_specifier |
| 47 | { |
| 48 | |
| 49 | /* components in the full length name */ |
| 50 | char *path; |
| 51 | char *property; |
| 52 | char *value; |
| 53 | |
| 54 | /* current device */ |
| 55 | char *family; |
| 56 | char *name; |
| 57 | char *unit; |
| 58 | char *args; |
| 59 | |
| 60 | /* previous device */ |
| 61 | char *last_name; |
| 62 | char *last_family; |
| 63 | char *last_unit; |
| 64 | char *last_args; |
| 65 | |
| 66 | /* work area */ |
| 67 | char buf[1024]; |
| 68 | |
| 69 | } name_specifier; |
| 70 | |
| 71 | |
| 72 | |
| 73 | /* Given a device specifier, break it up into its main components: |
| 74 | path (and if present) property name and property value. */ |
| 75 | |
| 76 | static int |
| 77 | split_device_specifier (struct hw *current, |
| 78 | const char *device_specifier, |
| 79 | name_specifier *spec) |
| 80 | { |
| 81 | char *chp = NULL; |
| 82 | |
| 83 | /* expand any leading alias if present */ |
| 84 | if (current != NULL |
| 85 | && *device_specifier != '\0' |
| 86 | && *device_specifier != '.' |
| 87 | && *device_specifier != '/') |
| 88 | { |
| 89 | struct hw *aliases = hw_tree_find_device (current, "/aliases"); |
| 90 | char alias[32]; |
| 91 | int len = 0; |
| 92 | while (device_specifier[len] != '\0' |
| 93 | && device_specifier[len] != '/' |
| 94 | && device_specifier[len] != ':' |
| 95 | && !isspace (device_specifier[len])) |
| 96 | { |
| 97 | alias[len] = device_specifier[len]; |
| 98 | len++; |
| 99 | if (len >= sizeof (alias)) |
| 100 | hw_abort (NULL, "split_device_specifier: buffer overflow"); |
| 101 | } |
| 102 | alias[len] = '\0'; |
| 103 | if (aliases != NULL |
| 104 | && hw_find_property (aliases, alias)) |
| 105 | { |
| 106 | strcpy (spec->buf, hw_find_string_property (aliases, alias)); |
| 107 | strcat (spec->buf, device_specifier + len); |
| 108 | } |
| 109 | else |
| 110 | { |
| 111 | strcpy (spec->buf, device_specifier); |
| 112 | } |
| 113 | } |
| 114 | else |
| 115 | { |
| 116 | strcpy (spec->buf, device_specifier); |
| 117 | } |
| 118 | |
| 119 | /* check no overflow */ |
| 120 | if (strlen (spec->buf) >= sizeof (spec->buf)) |
| 121 | hw_abort (NULL, "split_device_specifier: buffer overflow\n"); |
| 122 | |
| 123 | /* strip leading spaces */ |
| 124 | chp = spec->buf; |
| 125 | while (*chp != '\0' && isspace (*chp)) |
| 126 | chp++; |
| 127 | if (*chp == '\0') |
| 128 | return 0; |
| 129 | |
| 130 | /* find the path and terminate it with null */ |
| 131 | spec->path = chp; |
| 132 | while (*chp != '\0' && !isspace (*chp)) |
| 133 | chp++; |
| 134 | if (*chp != '\0') |
| 135 | { |
| 136 | *chp = '\0'; |
| 137 | chp++; |
| 138 | } |
| 139 | |
| 140 | /* and any value */ |
| 141 | while (*chp != '\0' && isspace (*chp)) |
| 142 | chp++; |
| 143 | spec->value = chp; |
| 144 | |
| 145 | /* now go back and chop the property off of the path */ |
| 146 | if (spec->value[0] == '\0') |
| 147 | { |
| 148 | spec->property = NULL; /*not a property*/ |
| 149 | spec->value = NULL; |
| 150 | } |
| 151 | else if (spec->value[0] == '>' |
| 152 | || spec->value[0] == '<') |
| 153 | { |
| 154 | /* an interrupt spec */ |
| 155 | spec->property = NULL; |
| 156 | } |
| 157 | else |
| 158 | { |
| 159 | chp = strrchr (spec->path, '/'); |
| 160 | if (chp == NULL) |
| 161 | { |
| 162 | spec->property = spec->path; |
| 163 | spec->path = strchr (spec->property, '\0'); |
| 164 | } |
| 165 | else |
| 166 | { |
| 167 | *chp = '\0'; |
| 168 | spec->property = chp+1; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | /* and mark the rest as invalid */ |
| 173 | spec->name = NULL; |
| 174 | spec->family = NULL; |
| 175 | spec->unit = NULL; |
| 176 | spec->args = NULL; |
| 177 | spec->last_name = NULL; |
| 178 | spec->last_family = NULL; |
| 179 | spec->last_unit = NULL; |
| 180 | spec->last_args = NULL; |
| 181 | |
| 182 | return 1; |
| 183 | } |
| 184 | |
| 185 | |
| 186 | /* given a device specifier break it up into its main components - |
| 187 | path and property name - assuming that the last `device' is a |
| 188 | property name. */ |
| 189 | |
| 190 | static int |
| 191 | split_property_specifier (struct hw *current, |
| 192 | const char *property_specifier, |
| 193 | name_specifier *spec) |
| 194 | { |
| 195 | if (split_device_specifier (current, property_specifier, spec)) |
| 196 | { |
| 197 | if (spec->property == NULL) |
| 198 | { |
| 199 | /* force the last name to be a property name */ |
| 200 | char *chp = strrchr (spec->path, '/'); |
| 201 | if (chp == NULL) |
| 202 | { |
| 203 | spec->property = spec->path; |
| 204 | spec->path = strrchr (spec->property, '\0');; |
| 205 | } |
| 206 | else |
| 207 | { |
| 208 | *chp = '\0'; |
| 209 | spec->property = chp + 1; |
| 210 | } |
| 211 | } |
| 212 | return 1; |
| 213 | } |
| 214 | else |
| 215 | return 0; |
| 216 | } |
| 217 | |
| 218 | |
| 219 | /* device the next device name and split it up, return 0 when no more |
| 220 | names to struct hw */ |
| 221 | |
| 222 | static int |
| 223 | split_device_name (name_specifier *spec) |
| 224 | { |
| 225 | char *chp; |
| 226 | /* remember what came before */ |
| 227 | spec->last_name = spec->name; |
| 228 | spec->last_family = spec->family; |
| 229 | spec->last_unit = spec->unit; |
| 230 | spec->last_args = spec->args; |
| 231 | /* finished? */ |
| 232 | if (spec->path[0] == '\0') |
| 233 | { |
| 234 | spec->name = NULL; |
| 235 | spec->family = NULL; |
| 236 | spec->unit = NULL; |
| 237 | spec->args = NULL; |
| 238 | return 0; |
| 239 | } |
| 240 | /* break the current device spec from the path */ |
| 241 | spec->name = spec->path; |
| 242 | chp = strchr (spec->name, '/'); |
| 243 | if (chp == NULL) |
| 244 | spec->path = strchr (spec->name, '\0'); |
| 245 | else |
| 246 | { |
| 247 | spec->path = chp+1; |
| 248 | *chp = '\0'; |
| 249 | } |
| 250 | /* break out the base */ |
| 251 | if (spec->name[0] == '(') |
| 252 | { |
| 253 | chp = strchr (spec->name, ')'); |
| 254 | if (chp == NULL) |
| 255 | { |
| 256 | spec->family = spec->name; |
| 257 | } |
| 258 | else |
| 259 | { |
| 260 | *chp = '\0'; |
| 261 | spec->family = spec->name + 1; |
| 262 | spec->name = chp + 1; |
| 263 | } |
| 264 | } |
| 265 | else |
| 266 | { |
| 267 | spec->family = spec->name; |
| 268 | } |
| 269 | /* now break out the unit */ |
| 270 | chp = strchr (spec->name, '@'); |
| 271 | if (chp == NULL) |
| 272 | { |
| 273 | spec->unit = NULL; |
| 274 | chp = spec->name; |
| 275 | } |
| 276 | else |
| 277 | { |
| 278 | *chp = '\0'; |
| 279 | chp += 1; |
| 280 | spec->unit = chp; |
| 281 | } |
| 282 | /* finally any args */ |
| 283 | chp = strchr (chp, ':'); |
| 284 | if (chp == NULL) |
| 285 | spec->args = NULL; |
| 286 | else |
| 287 | { |
| 288 | *chp = '\0'; |
| 289 | spec->args = chp+1; |
| 290 | } |
| 291 | return 1; |
| 292 | } |
| 293 | |
| 294 | |
| 295 | /* device the value, returning the next non-space token */ |
| 296 | |
| 297 | static char * |
| 298 | split_value (name_specifier *spec) |
| 299 | { |
| 300 | char *token; |
| 301 | if (spec->value == NULL) |
| 302 | return NULL; |
| 303 | /* skip leading white space */ |
| 304 | while (isspace (spec->value[0])) |
| 305 | spec->value++; |
| 306 | if (spec->value[0] == '\0') |
| 307 | { |
| 308 | spec->value = NULL; |
| 309 | return NULL; |
| 310 | } |
| 311 | token = spec->value; |
| 312 | /* find trailing space */ |
| 313 | while (spec->value[0] != '\0' && !isspace (spec->value[0])) |
| 314 | spec->value++; |
| 315 | /* chop this value out */ |
| 316 | if (spec->value[0] != '\0') |
| 317 | { |
| 318 | spec->value[0] = '\0'; |
| 319 | spec->value++; |
| 320 | } |
| 321 | return token; |
| 322 | } |
| 323 | |
| 324 | |
| 325 | |
| 326 | /* traverse the path specified by spec starting at current */ |
| 327 | |
| 328 | static struct hw * |
| 329 | split_find_device (struct hw *current, |
| 330 | name_specifier *spec) |
| 331 | { |
| 332 | /* strip off (and process) any leading ., .., ./ and / */ |
| 333 | while (1) |
| 334 | { |
| 335 | if (strncmp (spec->path, "/", strlen ("/")) == 0) |
| 336 | { |
| 337 | /* cd /... */ |
| 338 | while (current != NULL && hw_parent (current) != NULL) |
| 339 | current = hw_parent (current); |
| 340 | spec->path += strlen ("/"); |
| 341 | } |
| 342 | else if (strncmp (spec->path, "./", strlen ("./")) == 0) |
| 343 | { |
| 344 | /* cd ./... */ |
| 345 | current = current; |
| 346 | spec->path += strlen ("./"); |
| 347 | } |
| 348 | else if (strncmp (spec->path, "../", strlen ("../")) == 0) |
| 349 | { |
| 350 | /* cd ../... */ |
| 351 | if (current != NULL && hw_parent (current) != NULL) |
| 352 | current = hw_parent (current); |
| 353 | spec->path += strlen ("../"); |
| 354 | } |
| 355 | else if (strcmp (spec->path, ".") == 0) |
| 356 | { |
| 357 | /* cd . */ |
| 358 | current = current; |
| 359 | spec->path += strlen ("."); |
| 360 | } |
| 361 | else if (strcmp (spec->path, "..") == 0) |
| 362 | { |
| 363 | /* cd .. */ |
| 364 | if (current != NULL && hw_parent (current) != NULL) |
| 365 | current = hw_parent (current); |
| 366 | spec->path += strlen (".."); |
| 367 | } |
| 368 | else |
| 369 | break; |
| 370 | } |
| 371 | |
| 372 | /* now go through the path proper */ |
| 373 | |
| 374 | if (current == NULL) |
| 375 | { |
| 376 | split_device_name (spec); |
| 377 | return NULL; |
| 378 | } |
| 379 | |
| 380 | while (split_device_name (spec)) |
| 381 | { |
| 382 | struct hw *child; |
| 383 | for (child = hw_child (current); |
| 384 | child != NULL; child = hw_sibling (child)) |
| 385 | { |
| 386 | if (strcmp (spec->name, hw_name (child)) == 0) |
| 387 | { |
| 388 | if (spec->unit == NULL) |
| 389 | break; |
| 390 | else |
| 391 | { |
| 392 | hw_unit phys; |
| 393 | hw_unit_decode (current, spec->unit, &phys); |
| 394 | if (memcmp (&phys, hw_unit_address (child), |
| 395 | sizeof (hw_unit)) == 0) |
| 396 | break; |
| 397 | } |
| 398 | } |
| 399 | } |
| 400 | if (child == NULL) |
| 401 | return current; /* search failed */ |
| 402 | current = child; |
| 403 | } |
| 404 | |
| 405 | return current; |
| 406 | } |
| 407 | |
| 408 | |
| 409 | static struct hw * |
| 410 | split_fill_path (struct hw *current, |
| 411 | const char *device_specifier, |
| 412 | name_specifier *spec) |
| 413 | { |
| 414 | /* break it up */ |
| 415 | if (!split_device_specifier (current, device_specifier, spec)) |
| 416 | hw_abort (current, "error parsing %s\n", device_specifier); |
| 417 | |
| 418 | /* fill our tree with its contents */ |
| 419 | current = split_find_device (current, spec); |
| 420 | |
| 421 | /* add any additional devices as needed */ |
| 422 | if (spec->name != NULL) |
| 423 | { |
| 424 | do |
| 425 | { |
| 426 | if (current != NULL && !hw_finished_p (current)) |
| 427 | hw_finish (current); |
| 428 | current = hw_create (NULL, |
| 429 | current, |
| 430 | spec->family, |
| 431 | spec->name, |
| 432 | spec->unit, |
| 433 | spec->args); |
| 434 | } |
| 435 | while (split_device_name (spec)); |
| 436 | } |
| 437 | |
| 438 | return current; |
| 439 | } |
| 440 | |
| 441 | \f |
| 442 | /* <non-white-space> */ |
| 443 | |
| 444 | static const char * |
| 445 | skip_token (const char *chp) |
| 446 | { |
| 447 | while (!isspace (*chp) && *chp != '\0') |
| 448 | chp++; |
| 449 | while (isspace (*chp) && *chp != '\0') |
| 450 | chp++; |
| 451 | return chp; |
| 452 | } |
| 453 | |
| 454 | |
| 455 | /* count the number of entries */ |
| 456 | |
| 457 | static int |
| 458 | count_entries (struct hw *current, |
| 459 | const char *property_name, |
| 460 | const char *property_value, |
| 461 | int modulo) |
| 462 | { |
| 463 | const char *chp = property_value; |
| 464 | int nr_entries = 0; |
| 465 | while (*chp != '\0') |
| 466 | { |
| 467 | nr_entries += 1; |
| 468 | chp = skip_token (chp); |
| 469 | } |
| 470 | if ((nr_entries % modulo) != 0) |
| 471 | { |
| 472 | hw_abort (current, "incorrect number of entries for %s property %s, should be multiple of %d", |
| 473 | property_name, property_value, modulo); |
| 474 | } |
| 475 | return nr_entries / modulo; |
| 476 | } |
| 477 | |
| 478 | |
| 479 | |
| 480 | /* parse: <address> ::= <token> ; device dependant */ |
| 481 | |
| 482 | static const char * |
| 483 | parse_address (struct hw *current, |
| 484 | struct hw *bus, |
| 485 | const char *chp, |
| 486 | hw_unit *address) |
| 487 | { |
| 488 | if (hw_unit_decode (bus, chp, address) < 0) |
| 489 | hw_abort (current, "invalid unit address in %s", chp); |
| 490 | return skip_token (chp); |
| 491 | } |
| 492 | |
| 493 | |
| 494 | /* parse: <size> ::= <number> { "," <number> } ; */ |
| 495 | |
| 496 | static const char * |
| 497 | parse_size (struct hw *current, |
| 498 | struct hw *bus, |
| 499 | const char *chp, |
| 500 | hw_unit *size) |
| 501 | { |
| 502 | int i; |
| 503 | int nr; |
| 504 | const char *curr = chp; |
| 505 | memset (size, 0, sizeof (*size)); |
| 506 | /* parse the numeric list */ |
| 507 | size->nr_cells = hw_unit_nr_size_cells (bus); |
| 508 | nr = 0; |
| 509 | while (1) |
| 510 | { |
| 511 | char *next; |
| 512 | size->cells[nr] = strtoul (curr, &next, 0); |
| 513 | if (curr == next) |
| 514 | hw_abort (current, "Problem parsing <size> %s", chp); |
| 515 | nr += 1; |
| 516 | if (next[0] != ',') |
| 517 | break; |
| 518 | if (nr == size->nr_cells) |
| 519 | hw_abort (current, "Too many values in <size> %s", chp); |
| 520 | curr = next + 1; |
| 521 | } |
| 522 | ASSERT (nr > 0 && nr <= size->nr_cells); |
| 523 | /* right align the numbers */ |
| 524 | for (i = 1; i <= size->nr_cells; i++) |
| 525 | { |
| 526 | if (i <= nr) |
| 527 | size->cells[size->nr_cells - i] = size->cells[nr - i]; |
| 528 | else |
| 529 | size->cells[size->nr_cells - i] = 0; |
| 530 | } |
| 531 | return skip_token (chp); |
| 532 | } |
| 533 | |
| 534 | |
| 535 | /* parse: <reg> ::= { <address> <size> } ; */ |
| 536 | |
| 537 | static void |
| 538 | parse_reg_property (struct hw *current, |
| 539 | const char *property_name, |
| 540 | const char *property_value) |
| 541 | { |
| 542 | int nr_regs; |
| 543 | int reg_nr; |
| 544 | reg_property_spec *regs; |
| 545 | const char *chp; |
| 546 | |
| 547 | /* determine the number of reg entries by counting tokens */ |
| 548 | nr_regs = count_entries (current, property_name, property_value, 2); |
| 549 | |
| 550 | /* create working space */ |
| 551 | regs = zalloc (nr_regs * sizeof (*regs)); |
| 552 | |
| 553 | /* fill it in */ |
| 554 | chp = property_value; |
| 555 | for (reg_nr = 0; reg_nr < nr_regs; reg_nr++) |
| 556 | { |
| 557 | chp = parse_address (current, hw_parent (current), |
| 558 | chp, ®s[reg_nr].address); |
| 559 | chp = parse_size (current, hw_parent (current), |
| 560 | chp, ®s[reg_nr].size); |
| 561 | } |
| 562 | |
| 563 | /* create it */ |
| 564 | hw_add_reg_array_property (current, property_name, |
| 565 | regs, nr_regs); |
| 566 | |
| 567 | free (regs); |
| 568 | } |
| 569 | |
| 570 | |
| 571 | /* { <child-address> <parent-address> <child-size> }* */ |
| 572 | |
| 573 | static void |
| 574 | parse_ranges_property (struct hw *current, |
| 575 | const char *property_name, |
| 576 | const char *property_value) |
| 577 | { |
| 578 | int nr_ranges; |
| 579 | int range_nr; |
| 580 | range_property_spec *ranges; |
| 581 | const char *chp; |
| 582 | |
| 583 | /* determine the number of ranges specified */ |
| 584 | nr_ranges = count_entries (current, property_name, property_value, 3); |
| 585 | |
| 586 | /* create a property of that size */ |
| 587 | ranges = zalloc (nr_ranges * sizeof (*ranges)); |
| 588 | |
| 589 | /* fill it in */ |
| 590 | chp = property_value; |
| 591 | for (range_nr = 0; range_nr < nr_ranges; range_nr++) |
| 592 | { |
| 593 | chp = parse_address (current, current, |
| 594 | chp, &ranges[range_nr].child_address); |
| 595 | chp = parse_address (current, hw_parent (current), |
| 596 | chp, &ranges[range_nr].parent_address); |
| 597 | chp = parse_size (current, current, |
| 598 | chp, &ranges[range_nr].size); |
| 599 | } |
| 600 | |
| 601 | /* create it */ |
| 602 | hw_add_range_array_property (current, property_name, ranges, nr_ranges); |
| 603 | |
| 604 | free (ranges); |
| 605 | } |
| 606 | |
| 607 | |
| 608 | /* <integer> ... */ |
| 609 | |
| 610 | static void |
| 611 | parse_integer_property (struct hw *current, |
| 612 | const char *property_name, |
| 613 | const char *property_value) |
| 614 | { |
| 615 | int nr_entries; |
| 616 | unsigned_cell words[1024]; |
| 617 | /* integer or integer array? */ |
| 618 | nr_entries = 0; |
| 619 | while (1) |
| 620 | { |
| 621 | char *end; |
| 622 | words[nr_entries] = strtoul (property_value, &end, 0); |
| 623 | if (property_value == end) |
| 624 | break; |
| 625 | nr_entries += 1; |
| 626 | if (nr_entries * sizeof (words[0]) >= sizeof (words)) |
| 627 | hw_abort (current, "buffer overflow"); |
| 628 | property_value = end; |
| 629 | } |
| 630 | if (nr_entries == 0) |
| 631 | hw_abort (current, "error parsing integer property %s (%s)", |
| 632 | property_name, property_value); |
| 633 | else if (nr_entries == 1) |
| 634 | hw_add_integer_property (current, property_name, words[0]); |
| 635 | else |
| 636 | { |
| 637 | int i; |
| 638 | for (i = 0; i < nr_entries; i++) |
| 639 | { |
| 640 | H2BE (words[i]); |
| 641 | } |
| 642 | /* perhaps integer array property is better */ |
| 643 | hw_add_array_property (current, property_name, words, |
| 644 | sizeof (words[0]) * nr_entries); |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | |
| 649 | /* <string> ... */ |
| 650 | |
| 651 | static void |
| 652 | parse_string_property (struct hw *current, |
| 653 | const char *property_name, |
| 654 | const char *property_value) |
| 655 | { |
| 656 | char **strings; |
| 657 | const char *chp; |
| 658 | int nr_strings; |
| 659 | int approx_nr_strings; |
| 660 | |
| 661 | /* get an estimate as to the number of strings by counting double |
| 662 | quotes */ |
| 663 | approx_nr_strings = 2; |
| 664 | for (chp = property_value; *chp; chp++) |
| 665 | { |
| 666 | if (*chp == '"') |
| 667 | approx_nr_strings++; |
| 668 | } |
| 669 | approx_nr_strings = (approx_nr_strings) / 2; |
| 670 | |
| 671 | /* create a string buffer for that many (plus a null) */ |
| 672 | strings = (char**) zalloc ((approx_nr_strings + 1) * sizeof (char*)); |
| 673 | |
| 674 | /* now find all the strings */ |
| 675 | chp = property_value; |
| 676 | nr_strings = 0; |
| 677 | while (1) |
| 678 | { |
| 679 | |
| 680 | /* skip leading space */ |
| 681 | while (*chp != '\0' && isspace (*chp)) |
| 682 | chp += 1; |
| 683 | if (*chp == '\0') |
| 684 | break; |
| 685 | |
| 686 | /* copy it in */ |
| 687 | if (*chp == '"') |
| 688 | { |
| 689 | /* a quoted string - watch for '\' et al. */ |
| 690 | /* estimate the size and allocate space for it */ |
| 691 | int pos; |
| 692 | chp++; |
| 693 | pos = 0; |
| 694 | while (chp[pos] != '\0' && chp[pos] != '"') |
| 695 | { |
| 696 | if (chp[pos] == '\\' && chp[pos+1] != '\0') |
| 697 | pos += 2; |
| 698 | else |
| 699 | pos += 1; |
| 700 | } |
| 701 | strings[nr_strings] = zalloc (pos + 1); |
| 702 | /* copy the string over */ |
| 703 | pos = 0; |
| 704 | while (*chp != '\0' && *chp != '"') |
| 705 | { |
| 706 | if (*chp == '\\' && *(chp+1) != '\0') |
| 707 | { |
| 708 | strings[nr_strings][pos] = *(chp+1); |
| 709 | chp += 2; |
| 710 | pos++; |
| 711 | } |
| 712 | else |
| 713 | { |
| 714 | strings[nr_strings][pos] = *chp; |
| 715 | chp += 1; |
| 716 | pos++; |
| 717 | } |
| 718 | } |
| 719 | if (*chp != '\0') |
| 720 | chp++; |
| 721 | strings[nr_strings][pos] = '\0'; |
| 722 | } |
| 723 | else |
| 724 | { |
| 725 | /* copy over a single unquoted token */ |
| 726 | int len = 0; |
| 727 | while (chp[len] != '\0' && !isspace (chp[len])) |
| 728 | len++; |
| 729 | strings[nr_strings] = zalloc (len + 1); |
| 730 | strncpy (strings[nr_strings], chp, len); |
| 731 | strings[nr_strings][len] = '\0'; |
| 732 | chp += len; |
| 733 | } |
| 734 | nr_strings++; |
| 735 | if (nr_strings > approx_nr_strings) |
| 736 | hw_abort (current, "String property %s badly formatted", |
| 737 | property_name); |
| 738 | } |
| 739 | ASSERT (strings[nr_strings] == NULL); /* from zalloc */ |
| 740 | |
| 741 | /* install it */ |
| 742 | if (nr_strings == 0) |
| 743 | hw_add_string_property (current, property_name, ""); |
| 744 | else if (nr_strings == 1) |
| 745 | hw_add_string_property (current, property_name, strings[0]); |
| 746 | else |
| 747 | { |
| 748 | const char **specs = (const char**) strings; /* stop a bogus error */ |
| 749 | hw_add_string_array_property (current, property_name, |
| 750 | specs, nr_strings); |
| 751 | } |
| 752 | |
| 753 | /* flush the created string */ |
| 754 | while (nr_strings > 0) |
| 755 | { |
| 756 | nr_strings--; |
| 757 | free (strings[nr_strings]); |
| 758 | } |
| 759 | free (strings); |
| 760 | } |
| 761 | |
| 762 | |
| 763 | /* <path-to-ihandle-device> */ |
| 764 | |
| 765 | #if NOT_YET |
| 766 | static void |
| 767 | parse_ihandle_property (struct hw *current, |
| 768 | const char *property, |
| 769 | const char *value) |
| 770 | { |
| 771 | ihandle_runtime_property_spec ihandle; |
| 772 | |
| 773 | /* pass the full path */ |
| 774 | ihandle.full_path = value; |
| 775 | |
| 776 | /* save this ready for the ihandle create */ |
| 777 | hw_add_ihandle_runtime_property (current, property, |
| 778 | &ihandle); |
| 779 | } |
| 780 | #endif |
| 781 | |
| 782 | |
| 783 | struct hw * |
| 784 | hw_tree_create (SIM_DESC sd, |
| 785 | const char *family) |
| 786 | { |
| 787 | return hw_create (sd, NULL, family, family, NULL, NULL); |
| 788 | } |
| 789 | |
| 790 | void |
| 791 | hw_tree_delete (struct hw *me) |
| 792 | { |
| 793 | /* Need to allow devices to disapear under our feet */ |
| 794 | while (hw_child (me) != NULL) |
| 795 | { |
| 796 | hw_tree_delete (hw_child (me)); |
| 797 | } |
| 798 | hw_delete (me); |
| 799 | } |
| 800 | |
| 801 | |
| 802 | struct hw * |
| 803 | hw_tree_parse (struct hw *current, |
| 804 | const char *fmt, |
| 805 | ...) |
| 806 | { |
| 807 | va_list ap; |
| 808 | va_start (ap, fmt); |
| 809 | current = hw_tree_vparse (current, fmt, ap); |
| 810 | va_end (ap); |
| 811 | return current; |
| 812 | } |
| 813 | |
| 814 | struct hw * |
| 815 | hw_tree_vparse (struct hw *current, |
| 816 | const char *fmt, |
| 817 | va_list ap) |
| 818 | { |
| 819 | char device_specifier[1024]; |
| 820 | name_specifier spec; |
| 821 | |
| 822 | /* format the path */ |
| 823 | vsprintf (device_specifier, fmt, ap); |
| 824 | if (strlen (device_specifier) >= sizeof (device_specifier)) |
| 825 | hw_abort (NULL, "device_tree_add_deviced: buffer overflow\n"); |
| 826 | |
| 827 | /* construct the tree down to the final struct hw */ |
| 828 | current = split_fill_path (current, device_specifier, &spec); |
| 829 | |
| 830 | /* is there an interrupt spec */ |
| 831 | if (spec.property == NULL |
| 832 | && spec.value != NULL) |
| 833 | { |
| 834 | char *op = split_value (&spec); |
| 835 | switch (op[0]) |
| 836 | { |
| 837 | case '>': |
| 838 | { |
| 839 | char *my_port_name = split_value (&spec); |
| 840 | int my_port; |
| 841 | char *dest_port_name = split_value (&spec); |
| 842 | int dest_port; |
| 843 | name_specifier dest_spec; |
| 844 | char *dest_hw_name = split_value (&spec); |
| 845 | struct hw *dest; |
| 846 | /* find my name */ |
| 847 | if (!hw_finished_p (current)) |
| 848 | hw_finish (current); |
| 849 | my_port = hw_port_decode (current, my_port_name, output_port); |
| 850 | /* find the dest device and port */ |
| 851 | dest = split_fill_path (current, dest_hw_name, &dest_spec); |
| 852 | if (!hw_finished_p (dest)) |
| 853 | hw_finish (dest); |
| 854 | dest_port = hw_port_decode (dest, dest_port_name, |
| 855 | input_port); |
| 856 | /* connect the two */ |
| 857 | hw_port_attach (current, |
| 858 | my_port, |
| 859 | dest, |
| 860 | dest_port, |
| 861 | permenant_object); |
| 862 | break; |
| 863 | } |
| 864 | default: |
| 865 | hw_abort (current, "unreconised interrupt spec %s\n", spec.value); |
| 866 | break; |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | /* is there a property */ |
| 871 | if (spec.property != NULL) |
| 872 | { |
| 873 | if (strcmp (spec.value, "true") == 0) |
| 874 | hw_add_boolean_property (current, spec.property, 1); |
| 875 | else if (strcmp (spec.value, "false") == 0) |
| 876 | hw_add_boolean_property (current, spec.property, 0); |
| 877 | else |
| 878 | { |
| 879 | const struct hw_property *property; |
| 880 | switch (spec.value[0]) |
| 881 | { |
| 882 | #if NOT_YET |
| 883 | case '*': |
| 884 | { |
| 885 | parse_ihandle_property (current, spec.property, spec.value + 1); |
| 886 | break; |
| 887 | } |
| 888 | #endif |
| 889 | case '[': |
| 890 | { |
| 891 | unsigned8 words[1024]; |
| 892 | char *curr = spec.value + 1; |
| 893 | int nr_words = 0; |
| 894 | while (1) |
| 895 | { |
| 896 | char *next; |
| 897 | words[nr_words] = H2BE_1 (strtoul (curr, &next, 0)); |
| 898 | if (curr == next) |
| 899 | break; |
| 900 | curr = next; |
| 901 | nr_words += 1; |
| 902 | } |
| 903 | hw_add_array_property (current, spec.property, |
| 904 | words, sizeof (words[0]) * nr_words); |
| 905 | break; |
| 906 | } |
| 907 | case '"': |
| 908 | { |
| 909 | parse_string_property (current, spec.property, spec.value); |
| 910 | break; |
| 911 | } |
| 912 | case '!': |
| 913 | { |
| 914 | spec.value++; |
| 915 | property = hw_tree_find_property (current, spec.value); |
| 916 | if (property == NULL) |
| 917 | hw_abort (current, "property %s not found\n", spec.value); |
| 918 | hw_add_duplicate_property (current, |
| 919 | spec.property, |
| 920 | property); |
| 921 | break; |
| 922 | } |
| 923 | default: |
| 924 | { |
| 925 | if (strcmp (spec.property, "reg") == 0 |
| 926 | || strcmp (spec.property, "assigned-addresses") == 0 |
| 927 | || strcmp (spec.property, "alternate-reg") == 0) |
| 928 | { |
| 929 | parse_reg_property (current, spec.property, spec.value); |
| 930 | } |
| 931 | else if (strcmp (spec.property, "ranges") == 0) |
| 932 | { |
| 933 | parse_ranges_property (current, spec.property, spec.value); |
| 934 | } |
| 935 | else if (isdigit (spec.value[0]) |
| 936 | || (spec.value[0] == '-' && isdigit (spec.value[1])) |
| 937 | || (spec.value[0] == '+' && isdigit (spec.value[1]))) |
| 938 | { |
| 939 | parse_integer_property (current, spec.property, spec.value); |
| 940 | } |
| 941 | else |
| 942 | parse_string_property (current, spec.property, spec.value); |
| 943 | break; |
| 944 | } |
| 945 | } |
| 946 | } |
| 947 | } |
| 948 | return current; |
| 949 | } |
| 950 | |
| 951 | |
| 952 | static void |
| 953 | finish_hw_tree (struct hw *me, |
| 954 | void *data) |
| 955 | { |
| 956 | if (!hw_finished_p (me)) |
| 957 | hw_finish (me); |
| 958 | } |
| 959 | |
| 960 | void |
| 961 | hw_tree_finish (struct hw *root) |
| 962 | { |
| 963 | hw_tree_traverse (root, finish_hw_tree, NULL, NULL); |
| 964 | } |
| 965 | |
| 966 | |
| 967 | |
| 968 | void |
| 969 | hw_tree_traverse (struct hw *root, |
| 970 | hw_tree_traverse_function *prefix, |
| 971 | hw_tree_traverse_function *postfix, |
| 972 | void *data) |
| 973 | { |
| 974 | struct hw *child; |
| 975 | if (prefix != NULL) |
| 976 | prefix (root, data); |
| 977 | for (child = hw_child (root); |
| 978 | child != NULL; |
| 979 | child = hw_sibling (child)) |
| 980 | { |
| 981 | hw_tree_traverse (child, prefix, postfix, data); |
| 982 | } |
| 983 | if (postfix != NULL) |
| 984 | postfix (root, data); |
| 985 | } |
| 986 | |
| 987 | |
| 988 | \f |
| 989 | struct printer |
| 990 | { |
| 991 | hw_tree_print_callback *print; |
| 992 | void *file; |
| 993 | }; |
| 994 | |
| 995 | static void |
| 996 | print_address (struct hw *bus, |
| 997 | const hw_unit *phys, |
| 998 | struct printer *p) |
| 999 | { |
| 1000 | char unit[32]; |
| 1001 | hw_unit_encode (bus, phys, unit, sizeof (unit)); |
| 1002 | p->print (p->file, " %s", unit); |
| 1003 | } |
| 1004 | |
| 1005 | static void |
| 1006 | print_size (struct hw *bus, |
| 1007 | const hw_unit *size, |
| 1008 | struct printer *p) |
| 1009 | { |
| 1010 | int i; |
| 1011 | for (i = 0; i < size->nr_cells; i++) |
| 1012 | if (size->cells[i] != 0) |
| 1013 | break; |
| 1014 | if (i < size->nr_cells) |
| 1015 | { |
| 1016 | p->print (p->file, " 0x%lx", (unsigned long) size->cells[i]); |
| 1017 | i++; |
| 1018 | for (; i < size->nr_cells; i++) |
| 1019 | p->print (p->file, ",0x%lx", (unsigned long) size->cells[i]); |
| 1020 | } |
| 1021 | else |
| 1022 | p->print (p->file, " 0"); |
| 1023 | } |
| 1024 | |
| 1025 | static void |
| 1026 | print_reg_property (struct hw *me, |
| 1027 | const struct hw_property *property, |
| 1028 | struct printer *p) |
| 1029 | { |
| 1030 | int reg_nr; |
| 1031 | reg_property_spec reg; |
| 1032 | for (reg_nr = 0; |
| 1033 | hw_find_reg_array_property (me, property->name, reg_nr, ®); |
| 1034 | reg_nr++) |
| 1035 | { |
| 1036 | print_address (hw_parent (me), ®.address, p); |
| 1037 | print_size (me, ®.size, p); |
| 1038 | } |
| 1039 | } |
| 1040 | |
| 1041 | static void |
| 1042 | print_ranges_property (struct hw *me, |
| 1043 | const struct hw_property *property, |
| 1044 | struct printer *p) |
| 1045 | { |
| 1046 | int range_nr; |
| 1047 | range_property_spec range; |
| 1048 | for (range_nr = 0; |
| 1049 | hw_find_range_array_property (me, property->name, range_nr, &range); |
| 1050 | range_nr++) |
| 1051 | { |
| 1052 | print_address (me, &range.child_address, p); |
| 1053 | print_address (hw_parent (me), &range.parent_address, p); |
| 1054 | print_size (me, &range.size, p); |
| 1055 | } |
| 1056 | } |
| 1057 | |
| 1058 | static void |
| 1059 | print_string (struct hw *me, |
| 1060 | const char *string, |
| 1061 | struct printer *p) |
| 1062 | { |
| 1063 | p->print (p->file, " \""); |
| 1064 | while (*string != '\0') |
| 1065 | { |
| 1066 | switch (*string) |
| 1067 | { |
| 1068 | case '"': |
| 1069 | p->print (p->file, "\\\""); |
| 1070 | break; |
| 1071 | case '\\': |
| 1072 | p->print (p->file, "\\\\"); |
| 1073 | break; |
| 1074 | default: |
| 1075 | p->print (p->file, "%c", *string); |
| 1076 | break; |
| 1077 | } |
| 1078 | string++; |
| 1079 | } |
| 1080 | p->print (p->file, "\""); |
| 1081 | } |
| 1082 | |
| 1083 | static void |
| 1084 | print_string_array_property (struct hw *me, |
| 1085 | const struct hw_property *property, |
| 1086 | struct printer *p) |
| 1087 | { |
| 1088 | int nr; |
| 1089 | string_property_spec string; |
| 1090 | for (nr = 0; |
| 1091 | hw_find_string_array_property (me, property->name, nr, &string); |
| 1092 | nr++) |
| 1093 | { |
| 1094 | print_string (me, string, p); |
| 1095 | } |
| 1096 | } |
| 1097 | |
| 1098 | static void |
| 1099 | print_properties (struct hw *me, |
| 1100 | struct printer *p) |
| 1101 | { |
| 1102 | const struct hw_property *property; |
| 1103 | for (property = hw_find_property (me, NULL); |
| 1104 | property != NULL; |
| 1105 | property = hw_next_property (property)) |
| 1106 | { |
| 1107 | if (hw_parent (me) == NULL) |
| 1108 | p->print (p->file, "/%s", property->name); |
| 1109 | else |
| 1110 | p->print (p->file, "%s/%s", hw_path (me), property->name); |
| 1111 | if (property->original != NULL) |
| 1112 | { |
| 1113 | p->print (p->file, " !"); |
| 1114 | p->print (p->file, "%s/%s", |
| 1115 | hw_path (property->original->owner), |
| 1116 | property->original->name); |
| 1117 | } |
| 1118 | else |
| 1119 | { |
| 1120 | switch (property->type) |
| 1121 | { |
| 1122 | case array_property: |
| 1123 | { |
| 1124 | if ((property->sizeof_array % sizeof (signed_cell)) == 0) |
| 1125 | { |
| 1126 | unsigned_cell *w = (unsigned_cell*) property->array; |
| 1127 | int cell_nr; |
| 1128 | for (cell_nr = 0; |
| 1129 | cell_nr < (property->sizeof_array / sizeof (unsigned_cell)); |
| 1130 | cell_nr++) |
| 1131 | { |
| 1132 | p->print (p->file, " 0x%lx", (unsigned long) BE2H_cell (w[cell_nr])); |
| 1133 | } |
| 1134 | } |
| 1135 | else |
| 1136 | { |
| 1137 | unsigned8 *w = (unsigned8*)property->array; |
| 1138 | p->print (p->file, " ["); |
| 1139 | while ((char*)w - (char*)property->array < property->sizeof_array) |
| 1140 | { |
| 1141 | p->print (p->file, " 0x%2x", BE2H_1 (*w)); |
| 1142 | w++; |
| 1143 | } |
| 1144 | } |
| 1145 | break; |
| 1146 | } |
| 1147 | case boolean_property: |
| 1148 | { |
| 1149 | int b = hw_find_boolean_property (me, property->name); |
| 1150 | p->print (p->file, " %s", b ? "true" : "false"); |
| 1151 | break; |
| 1152 | } |
| 1153 | #if NOT_YET |
| 1154 | case ihandle_property: |
| 1155 | { |
| 1156 | if (property->array != NULL) |
| 1157 | { |
| 1158 | device_instance *instance = hw_find_ihandle_property (me, property->name); |
| 1159 | p->print (p->file, " *%s", device_instance_path (instance)); |
| 1160 | } |
| 1161 | else |
| 1162 | { |
| 1163 | /* not yet initialized, ask the device for the path */ |
| 1164 | ihandle_runtime_property_spec spec; |
| 1165 | hw_find_ihandle_runtime_property (me, property->name, &spec); |
| 1166 | p->print (p->file, " *%s", spec.full_path); |
| 1167 | } |
| 1168 | break; |
| 1169 | } |
| 1170 | #endif |
| 1171 | case integer_property: |
| 1172 | { |
| 1173 | unsigned_word w = hw_find_integer_property (me, property->name); |
| 1174 | p->print (p->file, " 0x%lx", (unsigned long)w); |
| 1175 | break; |
| 1176 | } |
| 1177 | case range_array_property: |
| 1178 | { |
| 1179 | print_ranges_property (me, property, p); |
| 1180 | break; |
| 1181 | } |
| 1182 | case reg_array_property: |
| 1183 | { |
| 1184 | print_reg_property (me, property, p); |
| 1185 | break; |
| 1186 | } |
| 1187 | case string_property: |
| 1188 | { |
| 1189 | const char *s = hw_find_string_property (me, property->name); |
| 1190 | print_string (me, s, p); |
| 1191 | break; |
| 1192 | } |
| 1193 | case string_array_property: |
| 1194 | { |
| 1195 | print_string_array_property (me, property, p); |
| 1196 | break; |
| 1197 | } |
| 1198 | } |
| 1199 | } |
| 1200 | p->print (p->file, "\n"); |
| 1201 | } |
| 1202 | } |
| 1203 | |
| 1204 | static void |
| 1205 | print_interrupts (struct hw *me, |
| 1206 | int my_port, |
| 1207 | struct hw *dest, |
| 1208 | int dest_port, |
| 1209 | void *data) |
| 1210 | { |
| 1211 | struct printer *p = data; |
| 1212 | char src[32]; |
| 1213 | char dst[32]; |
| 1214 | hw_port_encode (me, my_port, src, sizeof (src), output_port); |
| 1215 | hw_port_encode (dest, dest_port, dst, sizeof (dst), input_port); |
| 1216 | p->print (p->file, |
| 1217 | "%s > %s %s %s\n", |
| 1218 | hw_path (me), |
| 1219 | src, dst, |
| 1220 | hw_path (dest)); |
| 1221 | } |
| 1222 | |
| 1223 | static void |
| 1224 | print_device (struct hw *me, |
| 1225 | void *data) |
| 1226 | { |
| 1227 | struct printer *p = data; |
| 1228 | p->print (p->file, "%s\n", hw_path (me)); |
| 1229 | print_properties (me, p); |
| 1230 | hw_port_traverse (me, print_interrupts, data); |
| 1231 | } |
| 1232 | |
| 1233 | void |
| 1234 | hw_tree_print (struct hw *root, |
| 1235 | hw_tree_print_callback *print, |
| 1236 | void *file) |
| 1237 | { |
| 1238 | struct printer p; |
| 1239 | p.print = print; |
| 1240 | p.file = file; |
| 1241 | hw_tree_traverse (root, |
| 1242 | print_device, NULL, |
| 1243 | &p); |
| 1244 | } |
| 1245 | |
| 1246 | |
| 1247 | \f |
| 1248 | #if NOT_YET |
| 1249 | device_instance * |
| 1250 | tree_instance (struct hw *root, |
| 1251 | const char *device_specifier) |
| 1252 | { |
| 1253 | /* find the device node */ |
| 1254 | struct hw *me; |
| 1255 | name_specifier spec; |
| 1256 | if (!split_device_specifier (root, device_specifier, &spec)) |
| 1257 | return NULL; |
| 1258 | me = split_find_device (root, &spec); |
| 1259 | if (spec.name != NULL) |
| 1260 | return NULL; |
| 1261 | /* create the instance */ |
| 1262 | return device_create_instance (me, device_specifier, spec.last_args); |
| 1263 | } |
| 1264 | #endif |
| 1265 | |
| 1266 | struct hw * |
| 1267 | hw_tree_find_device (struct hw *root, |
| 1268 | const char *path_to_device) |
| 1269 | { |
| 1270 | struct hw *node; |
| 1271 | name_specifier spec; |
| 1272 | |
| 1273 | /* parse the path */ |
| 1274 | split_device_specifier (root, path_to_device, &spec); |
| 1275 | if (spec.value != NULL) |
| 1276 | return NULL; /* something wierd */ |
| 1277 | |
| 1278 | /* now find it */ |
| 1279 | node = split_find_device (root, &spec); |
| 1280 | if (spec.name != NULL) |
| 1281 | return NULL; /* not a leaf */ |
| 1282 | |
| 1283 | return node; |
| 1284 | } |
| 1285 | |
| 1286 | |
| 1287 | const struct hw_property * |
| 1288 | hw_tree_find_property (struct hw *root, |
| 1289 | const char *path_to_property) |
| 1290 | { |
| 1291 | name_specifier spec; |
| 1292 | if (!split_property_specifier (root, path_to_property, &spec)) |
| 1293 | hw_abort (root, "Invalid property path %s", path_to_property); |
| 1294 | root = split_find_device (root, &spec); |
| 1295 | if (spec.name != NULL) |
| 1296 | return NULL; /* not a leaf */ |
| 1297 | return hw_find_property (root, spec.property); |
| 1298 | } |
| 1299 | |
| 1300 | int |
| 1301 | hw_tree_find_boolean_property (struct hw *root, |
| 1302 | const char *path_to_property) |
| 1303 | { |
| 1304 | name_specifier spec; |
| 1305 | if (!split_property_specifier (root, path_to_property, &spec)) |
| 1306 | hw_abort (root, "Invalid property path %s", path_to_property); |
| 1307 | root = split_find_device (root, &spec); |
| 1308 | if (spec.name != NULL) |
| 1309 | hw_abort (root, "device \"%s\" not found (property \"%s\")", |
| 1310 | spec.name, path_to_property); |
| 1311 | return hw_find_boolean_property (root, spec.property); |
| 1312 | } |
| 1313 | |
| 1314 | signed_cell |
| 1315 | hw_tree_find_integer_property (struct hw *root, |
| 1316 | const char *path_to_property) |
| 1317 | { |
| 1318 | name_specifier spec; |
| 1319 | if (!split_property_specifier (root, path_to_property, &spec)) |
| 1320 | hw_abort (root, "Invalid property path %s", path_to_property); |
| 1321 | root = split_find_device (root, &spec); |
| 1322 | if (spec.name != NULL) |
| 1323 | hw_abort (root, "device \"%s\" not found (property \"%s\")", |
| 1324 | spec.name, path_to_property); |
| 1325 | return hw_find_integer_property (root, spec.property); |
| 1326 | } |
| 1327 | |
| 1328 | #if NOT_YET |
| 1329 | device_instance * |
| 1330 | hw_tree_find_ihandle_property (struct hw *root, |
| 1331 | const char *path_to_property) |
| 1332 | { |
| 1333 | struct hw *root; |
| 1334 | name_specifier spec; |
| 1335 | if (!split_property_specifier (root, path_to_property, &spec)) |
| 1336 | hw_abort (root, "Invalid property path %s", path_to_property); |
| 1337 | root = split_find_device (root, &spec); |
| 1338 | if (spec.name != NULL) |
| 1339 | hw_abort (root, "device \"%s\" not found (property \"%s\")", |
| 1340 | spec.name, path_to_property); |
| 1341 | return hw_find_ihandle_property (root, spec.property); |
| 1342 | } |
| 1343 | #endif |
| 1344 | |
| 1345 | const char * |
| 1346 | hw_tree_find_string_property (struct hw *root, |
| 1347 | const char *path_to_property) |
| 1348 | { |
| 1349 | name_specifier spec; |
| 1350 | if (!split_property_specifier (root, path_to_property, &spec)) |
| 1351 | hw_abort (root, "Invalid property path %s", path_to_property); |
| 1352 | root = split_find_device (root, &spec); |
| 1353 | if (spec.name != NULL) |
| 1354 | hw_abort (root, "device \"%s\" not found (property \"%s\")", |
| 1355 | spec.name, path_to_property); |
| 1356 | return hw_find_string_property (root, spec.property); |
| 1357 | } |