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b85e4829 AC |
1 | /* The common simulator framework for GDB, the GNU Debugger. |
2 | ||
3666a048 | 3 | Copyright 2002-2021 Free Software Foundation, Inc. |
b85e4829 AC |
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 | |
4744ac1b | 11 | the Free Software Foundation; either version 3 of the License, or |
b85e4829 AC |
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 | |
4744ac1b | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b85e4829 | 21 | |
c906108c SS |
22 | |
23 | #include "hw-main.h" | |
24 | #include "hw-base.h" | |
25 | #include "hw-tree.h" | |
26 | ||
c2c6d25f | 27 | #include "sim-io.h" |
c906108c SS |
28 | #include "sim-assert.h" |
29 | ||
c906108c | 30 | #include <stdlib.h> |
c906108c | 31 | #include <string.h> |
c906108c SS |
32 | #include <ctype.h> |
33 | ||
34 | /* manipulate/lookup device names */ | |
35 | ||
12c4cbd5 MF |
36 | typedef struct _name_specifier |
37 | { | |
028f6515 | 38 | |
c906108c SS |
39 | /* components in the full length name */ |
40 | char *path; | |
41 | char *property; | |
42 | char *value; | |
028f6515 | 43 | |
c906108c SS |
44 | /* current device */ |
45 | char *family; | |
46 | char *name; | |
47 | char *unit; | |
48 | char *args; | |
028f6515 | 49 | |
c906108c SS |
50 | /* previous device */ |
51 | char *last_name; | |
52 | char *last_family; | |
53 | char *last_unit; | |
54 | char *last_args; | |
028f6515 | 55 | |
c906108c SS |
56 | /* work area */ |
57 | char buf[1024]; | |
028f6515 | 58 | |
c906108c SS |
59 | } name_specifier; |
60 | ||
61 | ||
62 | ||
63 | /* Given a device specifier, break it up into its main components: | |
64 | path (and if present) property name and property value. */ | |
65 | ||
66 | static int | |
67 | split_device_specifier (struct hw *current, | |
68 | const char *device_specifier, | |
69 | name_specifier *spec) | |
70 | { | |
71 | char *chp = NULL; | |
028f6515 | 72 | |
c906108c SS |
73 | /* expand any leading alias if present */ |
74 | if (current != NULL | |
75 | && *device_specifier != '\0' | |
76 | && *device_specifier != '.' | |
77 | && *device_specifier != '/') | |
78 | { | |
79 | struct hw *aliases = hw_tree_find_device (current, "/aliases"); | |
80 | char alias[32]; | |
81 | int len = 0; | |
82 | while (device_specifier[len] != '\0' | |
83 | && device_specifier[len] != '/' | |
84 | && device_specifier[len] != ':' | |
85 | && !isspace (device_specifier[len])) | |
86 | { | |
87 | alias[len] = device_specifier[len]; | |
88 | len++; | |
34b47c38 | 89 | if (len >= sizeof (alias)) |
c906108c SS |
90 | hw_abort (NULL, "split_device_specifier: buffer overflow"); |
91 | } | |
92 | alias[len] = '\0'; | |
93 | if (aliases != NULL | |
94 | && hw_find_property (aliases, alias)) | |
95 | { | |
34b47c38 | 96 | strcpy (spec->buf, hw_find_string_property (aliases, alias)); |
c906108c SS |
97 | strcat (spec->buf, device_specifier + len); |
98 | } | |
99 | else | |
100 | { | |
101 | strcpy (spec->buf, device_specifier); | |
102 | } | |
103 | } | |
104 | else | |
105 | { | |
34b47c38 | 106 | strcpy (spec->buf, device_specifier); |
c906108c | 107 | } |
028f6515 | 108 | |
c906108c | 109 | /* check no overflow */ |
34b47c38 | 110 | if (strlen (spec->buf) >= sizeof (spec->buf)) |
c906108c | 111 | hw_abort (NULL, "split_device_specifier: buffer overflow\n"); |
028f6515 | 112 | |
c906108c SS |
113 | /* strip leading spaces */ |
114 | chp = spec->buf; | |
34b47c38 | 115 | while (*chp != '\0' && isspace (*chp)) |
c906108c SS |
116 | chp++; |
117 | if (*chp == '\0') | |
118 | return 0; | |
028f6515 | 119 | |
c906108c SS |
120 | /* find the path and terminate it with null */ |
121 | spec->path = chp; | |
34b47c38 | 122 | while (*chp != '\0' && !isspace (*chp)) |
c906108c SS |
123 | chp++; |
124 | if (*chp != '\0') | |
125 | { | |
126 | *chp = '\0'; | |
127 | chp++; | |
128 | } | |
028f6515 | 129 | |
c906108c | 130 | /* and any value */ |
34b47c38 | 131 | while (*chp != '\0' && isspace (*chp)) |
c906108c SS |
132 | chp++; |
133 | spec->value = chp; | |
028f6515 | 134 | |
c906108c SS |
135 | /* now go back and chop the property off of the path */ |
136 | if (spec->value[0] == '\0') | |
137 | { | |
138 | spec->property = NULL; /*not a property*/ | |
139 | spec->value = NULL; | |
140 | } | |
141 | else if (spec->value[0] == '>' | |
142 | || spec->value[0] == '<') | |
143 | { | |
144 | /* an interrupt spec */ | |
145 | spec->property = NULL; | |
146 | } | |
12c4cbd5 MF |
147 | else |
148 | { | |
34b47c38 | 149 | chp = strrchr (spec->path, '/'); |
12c4cbd5 MF |
150 | if (chp == NULL) |
151 | { | |
152 | spec->property = spec->path; | |
34b47c38 | 153 | spec->path = strchr (spec->property, '\0'); |
12c4cbd5 MF |
154 | } |
155 | else | |
156 | { | |
157 | *chp = '\0'; | |
158 | spec->property = chp+1; | |
159 | } | |
c906108c | 160 | } |
028f6515 | 161 | |
c906108c SS |
162 | /* and mark the rest as invalid */ |
163 | spec->name = NULL; | |
164 | spec->family = NULL; | |
165 | spec->unit = NULL; | |
166 | spec->args = NULL; | |
167 | spec->last_name = NULL; | |
168 | spec->last_family = NULL; | |
169 | spec->last_unit = NULL; | |
170 | spec->last_args = NULL; | |
028f6515 | 171 | |
c906108c SS |
172 | return 1; |
173 | } | |
174 | ||
175 | ||
176 | /* given a device specifier break it up into its main components - | |
177 | path and property name - assuming that the last `device' is a | |
178 | property name. */ | |
179 | ||
180 | static int | |
181 | split_property_specifier (struct hw *current, | |
182 | const char *property_specifier, | |
183 | name_specifier *spec) | |
184 | { | |
185 | if (split_device_specifier (current, property_specifier, spec)) | |
186 | { | |
187 | if (spec->property == NULL) | |
188 | { | |
189 | /* force the last name to be a property name */ | |
190 | char *chp = strrchr (spec->path, '/'); | |
191 | if (chp == NULL) | |
192 | { | |
193 | spec->property = spec->path; | |
194 | spec->path = strrchr (spec->property, '\0');; | |
195 | } | |
196 | else | |
197 | { | |
198 | *chp = '\0'; | |
199 | spec->property = chp + 1; | |
200 | } | |
201 | } | |
202 | return 1; | |
203 | } | |
204 | else | |
205 | return 0; | |
206 | } | |
207 | ||
208 | ||
209 | /* device the next device name and split it up, return 0 when no more | |
210 | names to struct hw */ | |
211 | ||
212 | static int | |
213 | split_device_name (name_specifier *spec) | |
214 | { | |
215 | char *chp; | |
216 | /* remember what came before */ | |
217 | spec->last_name = spec->name; | |
218 | spec->last_family = spec->family; | |
219 | spec->last_unit = spec->unit; | |
220 | spec->last_args = spec->args; | |
221 | /* finished? */ | |
222 | if (spec->path[0] == '\0') | |
223 | { | |
224 | spec->name = NULL; | |
225 | spec->family = NULL; | |
226 | spec->unit = NULL; | |
227 | spec->args = NULL; | |
228 | return 0; | |
229 | } | |
230 | /* break the current device spec from the path */ | |
231 | spec->name = spec->path; | |
232 | chp = strchr (spec->name, '/'); | |
233 | if (chp == NULL) | |
234 | spec->path = strchr (spec->name, '\0'); | |
028f6515 | 235 | else |
c906108c SS |
236 | { |
237 | spec->path = chp+1; | |
238 | *chp = '\0'; | |
239 | } | |
240 | /* break out the base */ | |
241 | if (spec->name[0] == '(') | |
242 | { | |
34b47c38 | 243 | chp = strchr (spec->name, ')'); |
c906108c SS |
244 | if (chp == NULL) |
245 | { | |
246 | spec->family = spec->name; | |
247 | } | |
248 | else | |
249 | { | |
250 | *chp = '\0'; | |
251 | spec->family = spec->name + 1; | |
252 | spec->name = chp + 1; | |
253 | } | |
254 | } | |
255 | else | |
256 | { | |
257 | spec->family = spec->name; | |
258 | } | |
259 | /* now break out the unit */ | |
34b47c38 | 260 | chp = strchr (spec->name, '@'); |
c906108c SS |
261 | if (chp == NULL) |
262 | { | |
263 | spec->unit = NULL; | |
264 | chp = spec->name; | |
265 | } | |
266 | else | |
267 | { | |
268 | *chp = '\0'; | |
269 | chp += 1; | |
270 | spec->unit = chp; | |
271 | } | |
272 | /* finally any args */ | |
34b47c38 | 273 | chp = strchr (chp, ':'); |
c906108c SS |
274 | if (chp == NULL) |
275 | spec->args = NULL; | |
276 | else | |
277 | { | |
278 | *chp = '\0'; | |
279 | spec->args = chp+1; | |
280 | } | |
281 | return 1; | |
282 | } | |
283 | ||
284 | ||
285 | /* device the value, returning the next non-space token */ | |
286 | ||
287 | static char * | |
288 | split_value (name_specifier *spec) | |
289 | { | |
290 | char *token; | |
291 | if (spec->value == NULL) | |
292 | return NULL; | |
293 | /* skip leading white space */ | |
294 | while (isspace (spec->value[0])) | |
295 | spec->value++; | |
296 | if (spec->value[0] == '\0') | |
297 | { | |
298 | spec->value = NULL; | |
299 | return NULL; | |
300 | } | |
301 | token = spec->value; | |
302 | /* find trailing space */ | |
303 | while (spec->value[0] != '\0' && !isspace (spec->value[0])) | |
304 | spec->value++; | |
305 | /* chop this value out */ | |
306 | if (spec->value[0] != '\0') | |
307 | { | |
308 | spec->value[0] = '\0'; | |
309 | spec->value++; | |
310 | } | |
311 | return token; | |
312 | } | |
313 | ||
314 | ||
315 | ||
316 | /* traverse the path specified by spec starting at current */ | |
317 | ||
318 | static struct hw * | |
319 | split_find_device (struct hw *current, | |
320 | name_specifier *spec) | |
321 | { | |
322 | /* strip off (and process) any leading ., .., ./ and / */ | |
323 | while (1) | |
324 | { | |
325 | if (strncmp (spec->path, "/", strlen ("/")) == 0) | |
326 | { | |
327 | /* cd /... */ | |
328 | while (current != NULL && hw_parent (current) != NULL) | |
329 | current = hw_parent (current); | |
330 | spec->path += strlen ("/"); | |
331 | } | |
332 | else if (strncmp (spec->path, "./", strlen ("./")) == 0) | |
333 | { | |
334 | /* cd ./... */ | |
335 | current = current; | |
336 | spec->path += strlen ("./"); | |
337 | } | |
338 | else if (strncmp (spec->path, "../", strlen ("../")) == 0) | |
339 | { | |
340 | /* cd ../... */ | |
341 | if (current != NULL && hw_parent (current) != NULL) | |
342 | current = hw_parent (current); | |
343 | spec->path += strlen ("../"); | |
344 | } | |
345 | else if (strcmp (spec->path, ".") == 0) | |
346 | { | |
347 | /* cd . */ | |
348 | current = current; | |
349 | spec->path += strlen ("."); | |
350 | } | |
351 | else if (strcmp (spec->path, "..") == 0) | |
352 | { | |
353 | /* cd .. */ | |
354 | if (current != NULL && hw_parent (current) != NULL) | |
355 | current = hw_parent (current); | |
356 | spec->path += strlen (".."); | |
357 | } | |
358 | else | |
359 | break; | |
360 | } | |
028f6515 | 361 | |
c906108c | 362 | /* now go through the path proper */ |
028f6515 | 363 | |
c906108c SS |
364 | if (current == NULL) |
365 | { | |
366 | split_device_name (spec); | |
367 | return NULL; | |
368 | } | |
028f6515 | 369 | |
c906108c SS |
370 | while (split_device_name (spec)) |
371 | { | |
372 | struct hw *child; | |
373 | for (child = hw_child (current); | |
374 | child != NULL; child = hw_sibling (child)) | |
375 | { | |
376 | if (strcmp (spec->name, hw_name (child)) == 0) | |
377 | { | |
378 | if (spec->unit == NULL) | |
379 | break; | |
380 | else | |
381 | { | |
382 | hw_unit phys; | |
383 | hw_unit_decode (current, spec->unit, &phys); | |
384 | if (memcmp (&phys, hw_unit_address (child), | |
385 | sizeof (hw_unit)) == 0) | |
386 | break; | |
387 | } | |
388 | } | |
389 | } | |
390 | if (child == NULL) | |
391 | return current; /* search failed */ | |
392 | current = child; | |
393 | } | |
028f6515 | 394 | |
c906108c SS |
395 | return current; |
396 | } | |
397 | ||
398 | ||
399 | static struct hw * | |
400 | split_fill_path (struct hw *current, | |
401 | const char *device_specifier, | |
402 | name_specifier *spec) | |
403 | { | |
404 | /* break it up */ | |
405 | if (!split_device_specifier (current, device_specifier, spec)) | |
406 | hw_abort (current, "error parsing %s\n", device_specifier); | |
028f6515 | 407 | |
c906108c SS |
408 | /* fill our tree with its contents */ |
409 | current = split_find_device (current, spec); | |
028f6515 | 410 | |
c906108c SS |
411 | /* add any additional devices as needed */ |
412 | if (spec->name != NULL) | |
413 | { | |
414 | do | |
415 | { | |
416 | if (current != NULL && !hw_finished_p (current)) | |
417 | hw_finish (current); | |
418 | current = hw_create (NULL, | |
419 | current, | |
420 | spec->family, | |
421 | spec->name, | |
422 | spec->unit, | |
423 | spec->args); | |
424 | } | |
425 | while (split_device_name (spec)); | |
426 | } | |
028f6515 | 427 | |
c906108c SS |
428 | return current; |
429 | } | |
430 | ||
431 | \f | |
432 | /* <non-white-space> */ | |
433 | ||
434 | static const char * | |
34b47c38 | 435 | skip_token (const char *chp) |
c906108c | 436 | { |
34b47c38 | 437 | while (!isspace (*chp) && *chp != '\0') |
c906108c | 438 | chp++; |
34b47c38 | 439 | while (isspace (*chp) && *chp != '\0') |
c906108c SS |
440 | chp++; |
441 | return chp; | |
442 | } | |
443 | ||
444 | ||
445 | /* count the number of entries */ | |
446 | ||
447 | static int | |
448 | count_entries (struct hw *current, | |
449 | const char *property_name, | |
450 | const char *property_value, | |
451 | int modulo) | |
452 | { | |
453 | const char *chp = property_value; | |
454 | int nr_entries = 0; | |
455 | while (*chp != '\0') | |
456 | { | |
457 | nr_entries += 1; | |
458 | chp = skip_token (chp); | |
459 | } | |
460 | if ((nr_entries % modulo) != 0) | |
461 | { | |
462 | hw_abort (current, "incorrect number of entries for %s property %s, should be multiple of %d", | |
463 | property_name, property_value, modulo); | |
464 | } | |
465 | return nr_entries / modulo; | |
466 | } | |
467 | ||
468 | ||
469 | ||
470 | /* parse: <address> ::= <token> ; device dependant */ | |
471 | ||
472 | static const char * | |
473 | parse_address (struct hw *current, | |
474 | struct hw *bus, | |
475 | const char *chp, | |
476 | hw_unit *address) | |
477 | { | |
478 | if (hw_unit_decode (bus, chp, address) < 0) | |
479 | hw_abort (current, "invalid unit address in %s", chp); | |
480 | return skip_token (chp); | |
481 | } | |
482 | ||
483 | ||
484 | /* parse: <size> ::= <number> { "," <number> } ; */ | |
485 | ||
486 | static const char * | |
487 | parse_size (struct hw *current, | |
488 | struct hw *bus, | |
489 | const char *chp, | |
490 | hw_unit *size) | |
491 | { | |
492 | int i; | |
493 | int nr; | |
494 | const char *curr = chp; | |
34b47c38 | 495 | memset (size, 0, sizeof (*size)); |
c906108c SS |
496 | /* parse the numeric list */ |
497 | size->nr_cells = hw_unit_nr_size_cells (bus); | |
498 | nr = 0; | |
499 | while (1) | |
500 | { | |
501 | char *next; | |
502 | size->cells[nr] = strtoul (curr, &next, 0); | |
503 | if (curr == next) | |
504 | hw_abort (current, "Problem parsing <size> %s", chp); | |
505 | nr += 1; | |
506 | if (next[0] != ',') | |
507 | break; | |
508 | if (nr == size->nr_cells) | |
509 | hw_abort (current, "Too many values in <size> %s", chp); | |
510 | curr = next + 1; | |
511 | } | |
512 | ASSERT (nr > 0 && nr <= size->nr_cells); | |
513 | /* right align the numbers */ | |
514 | for (i = 1; i <= size->nr_cells; i++) | |
515 | { | |
516 | if (i <= nr) | |
517 | size->cells[size->nr_cells - i] = size->cells[nr - i]; | |
518 | else | |
519 | size->cells[size->nr_cells - i] = 0; | |
520 | } | |
521 | return skip_token (chp); | |
522 | } | |
523 | ||
524 | ||
525 | /* parse: <reg> ::= { <address> <size> } ; */ | |
526 | ||
527 | static void | |
528 | parse_reg_property (struct hw *current, | |
529 | const char *property_name, | |
530 | const char *property_value) | |
531 | { | |
532 | int nr_regs; | |
533 | int reg_nr; | |
534 | reg_property_spec *regs; | |
535 | const char *chp; | |
028f6515 | 536 | |
c906108c SS |
537 | /* determine the number of reg entries by counting tokens */ |
538 | nr_regs = count_entries (current, property_name, property_value, 2); | |
028f6515 | 539 | |
c906108c SS |
540 | /* create working space */ |
541 | regs = zalloc (nr_regs * sizeof (*regs)); | |
028f6515 | 542 | |
c906108c SS |
543 | /* fill it in */ |
544 | chp = property_value; | |
545 | for (reg_nr = 0; reg_nr < nr_regs; reg_nr++) | |
546 | { | |
34b47c38 | 547 | chp = parse_address (current, hw_parent (current), |
c906108c | 548 | chp, ®s[reg_nr].address); |
34b47c38 | 549 | chp = parse_size (current, hw_parent (current), |
c906108c SS |
550 | chp, ®s[reg_nr].size); |
551 | } | |
028f6515 | 552 | |
c906108c SS |
553 | /* create it */ |
554 | hw_add_reg_array_property (current, property_name, | |
555 | regs, nr_regs); | |
028f6515 | 556 | |
d79fe0d6 | 557 | free (regs); |
c906108c SS |
558 | } |
559 | ||
560 | ||
561 | /* { <child-address> <parent-address> <child-size> }* */ | |
562 | ||
563 | static void | |
564 | parse_ranges_property (struct hw *current, | |
565 | const char *property_name, | |
566 | const char *property_value) | |
567 | { | |
568 | int nr_ranges; | |
569 | int range_nr; | |
570 | range_property_spec *ranges; | |
571 | const char *chp; | |
028f6515 | 572 | |
c906108c SS |
573 | /* determine the number of ranges specified */ |
574 | nr_ranges = count_entries (current, property_name, property_value, 3); | |
028f6515 | 575 | |
c906108c | 576 | /* create a property of that size */ |
34b47c38 | 577 | ranges = zalloc (nr_ranges * sizeof (*ranges)); |
028f6515 | 578 | |
c906108c SS |
579 | /* fill it in */ |
580 | chp = property_value; | |
581 | for (range_nr = 0; range_nr < nr_ranges; range_nr++) | |
582 | { | |
583 | chp = parse_address (current, current, | |
584 | chp, &ranges[range_nr].child_address); | |
34b47c38 | 585 | chp = parse_address (current, hw_parent (current), |
c906108c SS |
586 | chp, &ranges[range_nr].parent_address); |
587 | chp = parse_size (current, current, | |
588 | chp, &ranges[range_nr].size); | |
589 | } | |
028f6515 | 590 | |
c906108c SS |
591 | /* create it */ |
592 | hw_add_range_array_property (current, property_name, ranges, nr_ranges); | |
028f6515 | 593 | |
d79fe0d6 | 594 | free (ranges); |
c906108c SS |
595 | } |
596 | ||
597 | ||
598 | /* <integer> ... */ | |
599 | ||
600 | static void | |
601 | parse_integer_property (struct hw *current, | |
602 | const char *property_name, | |
603 | const char *property_value) | |
604 | { | |
605 | int nr_entries; | |
606 | unsigned_cell words[1024]; | |
607 | /* integer or integer array? */ | |
608 | nr_entries = 0; | |
609 | while (1) | |
610 | { | |
611 | char *end; | |
612 | words[nr_entries] = strtoul (property_value, &end, 0); | |
613 | if (property_value == end) | |
614 | break; | |
615 | nr_entries += 1; | |
616 | if (nr_entries * sizeof (words[0]) >= sizeof (words)) | |
617 | hw_abort (current, "buffer overflow"); | |
618 | property_value = end; | |
619 | } | |
620 | if (nr_entries == 0) | |
621 | hw_abort (current, "error parsing integer property %s (%s)", | |
622 | property_name, property_value); | |
623 | else if (nr_entries == 1) | |
624 | hw_add_integer_property (current, property_name, words[0]); | |
625 | else | |
626 | { | |
627 | int i; | |
628 | for (i = 0; i < nr_entries; i++) | |
629 | { | |
630 | H2BE (words[i]); | |
631 | } | |
109d3db3 | 632 | /* perhaps integer array property is better */ |
c906108c | 633 | hw_add_array_property (current, property_name, words, |
34b47c38 | 634 | sizeof (words[0]) * nr_entries); |
c906108c SS |
635 | } |
636 | } | |
637 | ||
638 | ||
639 | /* <string> ... */ | |
640 | ||
641 | static void | |
642 | parse_string_property (struct hw *current, | |
643 | const char *property_name, | |
644 | const char *property_value) | |
645 | { | |
646 | char **strings; | |
647 | const char *chp; | |
648 | int nr_strings; | |
649 | int approx_nr_strings; | |
028f6515 | 650 | |
c906108c SS |
651 | /* get an estimate as to the number of strings by counting double |
652 | quotes */ | |
653 | approx_nr_strings = 2; | |
654 | for (chp = property_value; *chp; chp++) | |
655 | { | |
656 | if (*chp == '"') | |
657 | approx_nr_strings++; | |
658 | } | |
659 | approx_nr_strings = (approx_nr_strings) / 2; | |
028f6515 | 660 | |
c906108c | 661 | /* create a string buffer for that many (plus a null) */ |
34b47c38 | 662 | strings = (char**) zalloc ((approx_nr_strings + 1) * sizeof (char*)); |
028f6515 | 663 | |
c906108c SS |
664 | /* now find all the strings */ |
665 | chp = property_value; | |
666 | nr_strings = 0; | |
667 | while (1) | |
668 | { | |
028f6515 | 669 | |
c906108c SS |
670 | /* skip leading space */ |
671 | while (*chp != '\0' && isspace (*chp)) | |
672 | chp += 1; | |
673 | if (*chp == '\0') | |
674 | break; | |
028f6515 | 675 | |
c906108c SS |
676 | /* copy it in */ |
677 | if (*chp == '"') | |
678 | { | |
6439295f | 679 | /* a quoted string - watch for '\' et al. */ |
c906108c SS |
680 | /* estimate the size and allocate space for it */ |
681 | int pos; | |
682 | chp++; | |
683 | pos = 0; | |
684 | while (chp[pos] != '\0' && chp[pos] != '"') | |
685 | { | |
686 | if (chp[pos] == '\\' && chp[pos+1] != '\0') | |
687 | pos += 2; | |
688 | else | |
689 | pos += 1; | |
690 | } | |
691 | strings[nr_strings] = zalloc (pos + 1); | |
692 | /* copy the string over */ | |
693 | pos = 0; | |
694 | while (*chp != '\0' && *chp != '"') | |
695 | { | |
12c4cbd5 MF |
696 | if (*chp == '\\' && *(chp+1) != '\0') |
697 | { | |
698 | strings[nr_strings][pos] = *(chp+1); | |
699 | chp += 2; | |
700 | pos++; | |
701 | } | |
c906108c SS |
702 | else |
703 | { | |
704 | strings[nr_strings][pos] = *chp; | |
705 | chp += 1; | |
706 | pos++; | |
707 | } | |
708 | } | |
709 | if (*chp != '\0') | |
710 | chp++; | |
711 | strings[nr_strings][pos] = '\0'; | |
712 | } | |
713 | else | |
714 | { | |
715 | /* copy over a single unquoted token */ | |
716 | int len = 0; | |
34b47c38 | 717 | while (chp[len] != '\0' && !isspace (chp[len])) |
c906108c | 718 | len++; |
34b47c38 MF |
719 | strings[nr_strings] = zalloc (len + 1); |
720 | strncpy (strings[nr_strings], chp, len); | |
c906108c SS |
721 | strings[nr_strings][len] = '\0'; |
722 | chp += len; | |
723 | } | |
724 | nr_strings++; | |
725 | if (nr_strings > approx_nr_strings) | |
726 | hw_abort (current, "String property %s badly formatted", | |
727 | property_name); | |
728 | } | |
729 | ASSERT (strings[nr_strings] == NULL); /* from zalloc */ | |
028f6515 | 730 | |
c906108c SS |
731 | /* install it */ |
732 | if (nr_strings == 0) | |
733 | hw_add_string_property (current, property_name, ""); | |
734 | else if (nr_strings == 1) | |
735 | hw_add_string_property (current, property_name, strings[0]); | |
736 | else | |
737 | { | |
738 | const char **specs = (const char**) strings; /* stop a bogus error */ | |
739 | hw_add_string_array_property (current, property_name, | |
740 | specs, nr_strings); | |
741 | } | |
028f6515 | 742 | |
c906108c SS |
743 | /* flush the created string */ |
744 | while (nr_strings > 0) | |
745 | { | |
746 | nr_strings--; | |
d79fe0d6 | 747 | free (strings[nr_strings]); |
c906108c | 748 | } |
34b47c38 | 749 | free (strings); |
c906108c SS |
750 | } |
751 | ||
752 | ||
753 | /* <path-to-ihandle-device> */ | |
754 | ||
755 | #if NOT_YET | |
756 | static void | |
757 | parse_ihandle_property (struct hw *current, | |
758 | const char *property, | |
759 | const char *value) | |
760 | { | |
761 | ihandle_runtime_property_spec ihandle; | |
028f6515 | 762 | |
c906108c SS |
763 | /* pass the full path */ |
764 | ihandle.full_path = value; | |
028f6515 | 765 | |
c906108c SS |
766 | /* save this ready for the ihandle create */ |
767 | hw_add_ihandle_runtime_property (current, property, | |
768 | &ihandle); | |
769 | } | |
770 | #endif | |
771 | ||
772 | ||
773 | struct hw * | |
774 | hw_tree_create (SIM_DESC sd, | |
775 | const char *family) | |
776 | { | |
777 | return hw_create (sd, NULL, family, family, NULL, NULL); | |
778 | } | |
779 | ||
780 | void | |
781 | hw_tree_delete (struct hw *me) | |
782 | { | |
783 | /* Need to allow devices to disapear under our feet */ | |
784 | while (hw_child (me) != NULL) | |
785 | { | |
786 | hw_tree_delete (hw_child (me)); | |
787 | } | |
788 | hw_delete (me); | |
789 | } | |
790 | ||
791 | ||
792 | struct hw * | |
793 | hw_tree_parse (struct hw *current, | |
794 | const char *fmt, | |
795 | ...) | |
796 | { | |
797 | va_list ap; | |
798 | va_start (ap, fmt); | |
799 | current = hw_tree_vparse (current, fmt, ap); | |
800 | va_end (ap); | |
801 | return current; | |
802 | } | |
028f6515 | 803 | |
c906108c SS |
804 | struct hw * |
805 | hw_tree_vparse (struct hw *current, | |
806 | const char *fmt, | |
807 | va_list ap) | |
808 | { | |
809 | char device_specifier[1024]; | |
810 | name_specifier spec; | |
028f6515 | 811 | |
c906108c SS |
812 | /* format the path */ |
813 | vsprintf (device_specifier, fmt, ap); | |
814 | if (strlen (device_specifier) >= sizeof (device_specifier)) | |
815 | hw_abort (NULL, "device_tree_add_deviced: buffer overflow\n"); | |
028f6515 | 816 | |
c906108c SS |
817 | /* construct the tree down to the final struct hw */ |
818 | current = split_fill_path (current, device_specifier, &spec); | |
028f6515 | 819 | |
c906108c SS |
820 | /* is there an interrupt spec */ |
821 | if (spec.property == NULL | |
822 | && spec.value != NULL) | |
823 | { | |
824 | char *op = split_value (&spec); | |
825 | switch (op[0]) | |
826 | { | |
827 | case '>': | |
828 | { | |
829 | char *my_port_name = split_value (&spec); | |
830 | int my_port; | |
831 | char *dest_port_name = split_value (&spec); | |
832 | int dest_port; | |
833 | name_specifier dest_spec; | |
834 | char *dest_hw_name = split_value (&spec); | |
835 | struct hw *dest; | |
836 | /* find my name */ | |
837 | if (!hw_finished_p (current)) | |
838 | hw_finish (current); | |
839 | my_port = hw_port_decode (current, my_port_name, output_port); | |
840 | /* find the dest device and port */ | |
841 | dest = split_fill_path (current, dest_hw_name, &dest_spec); | |
842 | if (!hw_finished_p (dest)) | |
843 | hw_finish (dest); | |
844 | dest_port = hw_port_decode (dest, dest_port_name, | |
845 | input_port); | |
846 | /* connect the two */ | |
847 | hw_port_attach (current, | |
848 | my_port, | |
849 | dest, | |
850 | dest_port, | |
851 | permenant_object); | |
852 | break; | |
853 | } | |
854 | default: | |
855 | hw_abort (current, "unreconised interrupt spec %s\n", spec.value); | |
856 | break; | |
857 | } | |
858 | } | |
028f6515 | 859 | |
c906108c SS |
860 | /* is there a property */ |
861 | if (spec.property != NULL) | |
862 | { | |
863 | if (strcmp (spec.value, "true") == 0) | |
864 | hw_add_boolean_property (current, spec.property, 1); | |
865 | else if (strcmp (spec.value, "false") == 0) | |
866 | hw_add_boolean_property (current, spec.property, 0); | |
867 | else | |
868 | { | |
869 | const struct hw_property *property; | |
870 | switch (spec.value[0]) | |
871 | { | |
872 | #if NOT_YET | |
873 | case '*': | |
874 | { | |
875 | parse_ihandle_property (current, spec.property, spec.value + 1); | |
876 | break; | |
877 | } | |
878 | #endif | |
879 | case '[': | |
880 | { | |
881 | unsigned8 words[1024]; | |
882 | char *curr = spec.value + 1; | |
883 | int nr_words = 0; | |
884 | while (1) | |
885 | { | |
886 | char *next; | |
887 | words[nr_words] = H2BE_1 (strtoul (curr, &next, 0)); | |
888 | if (curr == next) | |
889 | break; | |
890 | curr = next; | |
891 | nr_words += 1; | |
892 | } | |
893 | hw_add_array_property (current, spec.property, | |
34b47c38 | 894 | words, sizeof (words[0]) * nr_words); |
c906108c SS |
895 | break; |
896 | } | |
897 | case '"': | |
898 | { | |
899 | parse_string_property (current, spec.property, spec.value); | |
900 | break; | |
901 | } | |
902 | case '!': | |
903 | { | |
904 | spec.value++; | |
905 | property = hw_tree_find_property (current, spec.value); | |
906 | if (property == NULL) | |
907 | hw_abort (current, "property %s not found\n", spec.value); | |
908 | hw_add_duplicate_property (current, | |
909 | spec.property, | |
910 | property); | |
911 | break; | |
912 | } | |
913 | default: | |
914 | { | |
915 | if (strcmp (spec.property, "reg") == 0 | |
916 | || strcmp (spec.property, "assigned-addresses") == 0 | |
917 | || strcmp (spec.property, "alternate-reg") == 0) | |
918 | { | |
919 | parse_reg_property (current, spec.property, spec.value); | |
920 | } | |
921 | else if (strcmp (spec.property, "ranges") == 0) | |
922 | { | |
923 | parse_ranges_property (current, spec.property, spec.value); | |
924 | } | |
34b47c38 MF |
925 | else if (isdigit (spec.value[0]) |
926 | || (spec.value[0] == '-' && isdigit (spec.value[1])) | |
927 | || (spec.value[0] == '+' && isdigit (spec.value[1]))) | |
c906108c | 928 | { |
34b47c38 | 929 | parse_integer_property (current, spec.property, spec.value); |
c906108c SS |
930 | } |
931 | else | |
34b47c38 | 932 | parse_string_property (current, spec.property, spec.value); |
c906108c SS |
933 | break; |
934 | } | |
935 | } | |
936 | } | |
937 | } | |
938 | return current; | |
939 | } | |
940 | ||
941 | ||
942 | static void | |
943 | finish_hw_tree (struct hw *me, | |
944 | void *data) | |
945 | { | |
946 | if (!hw_finished_p (me)) | |
947 | hw_finish (me); | |
948 | } | |
949 | ||
950 | void | |
951 | hw_tree_finish (struct hw *root) | |
952 | { | |
953 | hw_tree_traverse (root, finish_hw_tree, NULL, NULL); | |
954 | } | |
955 | ||
956 | ||
957 | ||
958 | void | |
959 | hw_tree_traverse (struct hw *root, | |
960 | hw_tree_traverse_function *prefix, | |
961 | hw_tree_traverse_function *postfix, | |
962 | void *data) | |
963 | { | |
964 | struct hw *child; | |
965 | if (prefix != NULL) | |
966 | prefix (root, data); | |
967 | for (child = hw_child (root); | |
968 | child != NULL; | |
969 | child = hw_sibling (child)) | |
970 | { | |
971 | hw_tree_traverse (child, prefix, postfix, data); | |
972 | } | |
973 | if (postfix != NULL) | |
974 | postfix (root, data); | |
975 | } | |
976 | ||
977 | ||
978 | \f | |
12c4cbd5 MF |
979 | struct printer |
980 | { | |
c906108c SS |
981 | hw_tree_print_callback *print; |
982 | void *file; | |
983 | }; | |
984 | ||
985 | static void | |
986 | print_address (struct hw *bus, | |
987 | const hw_unit *phys, | |
988 | struct printer *p) | |
989 | { | |
990 | char unit[32]; | |
34b47c38 | 991 | hw_unit_encode (bus, phys, unit, sizeof (unit)); |
c906108c SS |
992 | p->print (p->file, " %s", unit); |
993 | } | |
994 | ||
995 | static void | |
996 | print_size (struct hw *bus, | |
997 | const hw_unit *size, | |
998 | struct printer *p) | |
999 | { | |
1000 | int i; | |
1001 | for (i = 0; i < size->nr_cells; i++) | |
1002 | if (size->cells[i] != 0) | |
1003 | break; | |
12c4cbd5 MF |
1004 | if (i < size->nr_cells) |
1005 | { | |
1006 | p->print (p->file, " 0x%lx", (unsigned long) size->cells[i]); | |
1007 | i++; | |
1008 | for (; i < size->nr_cells; i++) | |
1009 | p->print (p->file, ",0x%lx", (unsigned long) size->cells[i]); | |
1010 | } | |
c906108c SS |
1011 | else |
1012 | p->print (p->file, " 0"); | |
1013 | } | |
1014 | ||
1015 | static void | |
1016 | print_reg_property (struct hw *me, | |
1017 | const struct hw_property *property, | |
1018 | struct printer *p) | |
1019 | { | |
1020 | int reg_nr; | |
1021 | reg_property_spec reg; | |
1022 | for (reg_nr = 0; | |
1023 | hw_find_reg_array_property (me, property->name, reg_nr, ®); | |
12c4cbd5 MF |
1024 | reg_nr++) |
1025 | { | |
1026 | print_address (hw_parent (me), ®.address, p); | |
1027 | print_size (me, ®.size, p); | |
1028 | } | |
c906108c SS |
1029 | } |
1030 | ||
1031 | static void | |
1032 | print_ranges_property (struct hw *me, | |
1033 | const struct hw_property *property, | |
1034 | struct printer *p) | |
1035 | { | |
1036 | int range_nr; | |
1037 | range_property_spec range; | |
1038 | for (range_nr = 0; | |
1039 | hw_find_range_array_property (me, property->name, range_nr, &range); | |
1040 | range_nr++) | |
1041 | { | |
1042 | print_address (me, &range.child_address, p); | |
1043 | print_address (hw_parent (me), &range.parent_address, p); | |
1044 | print_size (me, &range.size, p); | |
1045 | } | |
1046 | } | |
1047 | ||
1048 | static void | |
1049 | print_string (struct hw *me, | |
1050 | const char *string, | |
1051 | struct printer *p) | |
1052 | { | |
1053 | p->print (p->file, " \""); | |
12c4cbd5 MF |
1054 | while (*string != '\0') |
1055 | { | |
1056 | switch (*string) | |
1057 | { | |
1058 | case '"': | |
1059 | p->print (p->file, "\\\""); | |
1060 | break; | |
1061 | case '\\': | |
1062 | p->print (p->file, "\\\\"); | |
1063 | break; | |
1064 | default: | |
1065 | p->print (p->file, "%c", *string); | |
1066 | break; | |
1067 | } | |
1068 | string++; | |
c906108c | 1069 | } |
c906108c SS |
1070 | p->print (p->file, "\""); |
1071 | } | |
1072 | ||
1073 | static void | |
1074 | print_string_array_property (struct hw *me, | |
1075 | const struct hw_property *property, | |
1076 | struct printer *p) | |
1077 | { | |
1078 | int nr; | |
1079 | string_property_spec string; | |
1080 | for (nr = 0; | |
1081 | hw_find_string_array_property (me, property->name, nr, &string); | |
1082 | nr++) | |
1083 | { | |
1084 | print_string (me, string, p); | |
1085 | } | |
1086 | } | |
1087 | ||
1088 | static void | |
1089 | print_properties (struct hw *me, | |
1090 | struct printer *p) | |
1091 | { | |
1092 | const struct hw_property *property; | |
1093 | for (property = hw_find_property (me, NULL); | |
1094 | property != NULL; | |
1095 | property = hw_next_property (property)) | |
1096 | { | |
1097 | if (hw_parent (me) == NULL) | |
1098 | p->print (p->file, "/%s", property->name); | |
1099 | else | |
1100 | p->print (p->file, "%s/%s", hw_path (me), property->name); | |
1101 | if (property->original != NULL) | |
1102 | { | |
1103 | p->print (p->file, " !"); | |
028f6515 | 1104 | p->print (p->file, "%s/%s", |
c906108c SS |
1105 | hw_path (property->original->owner), |
1106 | property->original->name); | |
1107 | } | |
1108 | else | |
1109 | { | |
1110 | switch (property->type) | |
1111 | { | |
1112 | case array_property: | |
1113 | { | |
1114 | if ((property->sizeof_array % sizeof (signed_cell)) == 0) | |
1115 | { | |
1116 | unsigned_cell *w = (unsigned_cell*) property->array; | |
1117 | int cell_nr; | |
1118 | for (cell_nr = 0; | |
1119 | cell_nr < (property->sizeof_array / sizeof (unsigned_cell)); | |
1120 | cell_nr++) | |
1121 | { | |
1122 | p->print (p->file, " 0x%lx", (unsigned long) BE2H_cell (w[cell_nr])); | |
1123 | } | |
1124 | } | |
1125 | else | |
1126 | { | |
1127 | unsigned8 *w = (unsigned8*)property->array; | |
1128 | p->print (p->file, " ["); | |
12c4cbd5 MF |
1129 | while ((char*)w - (char*)property->array < property->sizeof_array) |
1130 | { | |
1131 | p->print (p->file, " 0x%2x", BE2H_1 (*w)); | |
1132 | w++; | |
1133 | } | |
c906108c SS |
1134 | } |
1135 | break; | |
1136 | } | |
1137 | case boolean_property: | |
1138 | { | |
34b47c38 | 1139 | int b = hw_find_boolean_property (me, property->name); |
c906108c SS |
1140 | p->print (p->file, " %s", b ? "true" : "false"); |
1141 | break; | |
1142 | } | |
1143 | #if NOT_YET | |
1144 | case ihandle_property: | |
1145 | { | |
1146 | if (property->array != NULL) | |
1147 | { | |
1148 | device_instance *instance = hw_find_ihandle_property (me, property->name); | |
34b47c38 | 1149 | p->print (p->file, " *%s", device_instance_path (instance)); |
c906108c SS |
1150 | } |
1151 | else | |
1152 | { | |
1153 | /* not yet initialized, ask the device for the path */ | |
1154 | ihandle_runtime_property_spec spec; | |
1155 | hw_find_ihandle_runtime_property (me, property->name, &spec); | |
1156 | p->print (p->file, " *%s", spec.full_path); | |
1157 | } | |
1158 | break; | |
1159 | } | |
1160 | #endif | |
1161 | case integer_property: | |
1162 | { | |
1163 | unsigned_word w = hw_find_integer_property (me, property->name); | |
1164 | p->print (p->file, " 0x%lx", (unsigned long)w); | |
1165 | break; | |
1166 | } | |
1167 | case range_array_property: | |
1168 | { | |
1169 | print_ranges_property (me, property, p); | |
1170 | break; | |
1171 | } | |
1172 | case reg_array_property: | |
1173 | { | |
1174 | print_reg_property (me, property, p); | |
1175 | break; | |
1176 | } | |
1177 | case string_property: | |
1178 | { | |
1179 | const char *s = hw_find_string_property (me, property->name); | |
1180 | print_string (me, s, p); | |
1181 | break; | |
1182 | } | |
1183 | case string_array_property: | |
1184 | { | |
1185 | print_string_array_property (me, property, p); | |
1186 | break; | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | p->print (p->file, "\n"); | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | static void | |
1195 | print_interrupts (struct hw *me, | |
1196 | int my_port, | |
1197 | struct hw *dest, | |
1198 | int dest_port, | |
1199 | void *data) | |
1200 | { | |
1201 | struct printer *p = data; | |
1202 | char src[32]; | |
1203 | char dst[32]; | |
34b47c38 MF |
1204 | hw_port_encode (me, my_port, src, sizeof (src), output_port); |
1205 | hw_port_encode (dest, dest_port, dst, sizeof (dst), input_port); | |
c906108c SS |
1206 | p->print (p->file, |
1207 | "%s > %s %s %s\n", | |
1208 | hw_path (me), | |
1209 | src, dst, | |
1210 | hw_path (dest)); | |
1211 | } | |
1212 | ||
1213 | static void | |
1214 | print_device (struct hw *me, | |
1215 | void *data) | |
1216 | { | |
1217 | struct printer *p = data; | |
1218 | p->print (p->file, "%s\n", hw_path (me)); | |
1219 | print_properties (me, p); | |
1220 | hw_port_traverse (me, print_interrupts, data); | |
1221 | } | |
1222 | ||
1223 | void | |
1224 | hw_tree_print (struct hw *root, | |
1225 | hw_tree_print_callback *print, | |
1226 | void *file) | |
1227 | { | |
1228 | struct printer p; | |
1229 | p.print = print; | |
1230 | p.file = file; | |
1231 | hw_tree_traverse (root, | |
1232 | print_device, NULL, | |
1233 | &p); | |
1234 | } | |
1235 | ||
1236 | ||
1237 | \f | |
1238 | #if NOT_YET | |
1239 | device_instance * | |
34b47c38 MF |
1240 | tree_instance (struct hw *root, |
1241 | const char *device_specifier) | |
c906108c SS |
1242 | { |
1243 | /* find the device node */ | |
1244 | struct hw *me; | |
1245 | name_specifier spec; | |
34b47c38 | 1246 | if (!split_device_specifier (root, device_specifier, &spec)) |
c906108c | 1247 | return NULL; |
34b47c38 | 1248 | me = split_find_device (root, &spec); |
c906108c SS |
1249 | if (spec.name != NULL) |
1250 | return NULL; | |
1251 | /* create the instance */ | |
34b47c38 | 1252 | return device_create_instance (me, device_specifier, spec.last_args); |
c906108c SS |
1253 | } |
1254 | #endif | |
1255 | ||
1256 | struct hw * | |
1257 | hw_tree_find_device (struct hw *root, | |
1258 | const char *path_to_device) | |
1259 | { | |
1260 | struct hw *node; | |
1261 | name_specifier spec; | |
028f6515 | 1262 | |
c906108c SS |
1263 | /* parse the path */ |
1264 | split_device_specifier (root, path_to_device, &spec); | |
1265 | if (spec.value != NULL) | |
1266 | return NULL; /* something wierd */ | |
028f6515 | 1267 | |
c906108c SS |
1268 | /* now find it */ |
1269 | node = split_find_device (root, &spec); | |
1270 | if (spec.name != NULL) | |
1271 | return NULL; /* not a leaf */ | |
028f6515 | 1272 | |
c906108c SS |
1273 | return node; |
1274 | } | |
1275 | ||
1276 | ||
1277 | const struct hw_property * | |
1278 | hw_tree_find_property (struct hw *root, | |
1279 | const char *path_to_property) | |
1280 | { | |
1281 | name_specifier spec; | |
1282 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1283 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1284 | root = split_find_device (root, &spec); | |
1285 | if (spec.name != NULL) | |
1286 | return NULL; /* not a leaf */ | |
1287 | return hw_find_property (root, spec.property); | |
1288 | } | |
1289 | ||
1290 | int | |
1291 | hw_tree_find_boolean_property (struct hw *root, | |
1292 | const char *path_to_property) | |
1293 | { | |
1294 | name_specifier spec; | |
1295 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1296 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1297 | root = split_find_device (root, &spec); | |
1298 | if (spec.name != NULL) | |
1299 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1300 | spec.name, path_to_property); | |
1301 | return hw_find_boolean_property (root, spec.property); | |
1302 | } | |
1303 | ||
1304 | signed_cell | |
1305 | hw_tree_find_integer_property (struct hw *root, | |
1306 | const char *path_to_property) | |
1307 | { | |
1308 | name_specifier spec; | |
1309 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1310 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1311 | root = split_find_device (root, &spec); | |
1312 | if (spec.name != NULL) | |
1313 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1314 | spec.name, path_to_property); | |
1315 | return hw_find_integer_property (root, spec.property); | |
1316 | } | |
1317 | ||
1318 | #if NOT_YET | |
1319 | device_instance * | |
1320 | hw_tree_find_ihandle_property (struct hw *root, | |
1321 | const char *path_to_property) | |
1322 | { | |
1323 | struct hw *root; | |
1324 | name_specifier spec; | |
1325 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1326 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1327 | root = split_find_device (root, &spec); | |
1328 | if (spec.name != NULL) | |
1329 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1330 | spec.name, path_to_property); | |
1331 | return hw_find_ihandle_property (root, spec.property); | |
1332 | } | |
1333 | #endif | |
1334 | ||
1335 | const char * | |
1336 | hw_tree_find_string_property (struct hw *root, | |
1337 | const char *path_to_property) | |
1338 | { | |
1339 | name_specifier spec; | |
1340 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1341 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1342 | root = split_find_device (root, &spec); | |
1343 | if (spec.name != NULL) | |
1344 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1345 | spec.name, path_to_property); | |
1346 | return hw_find_string_property (root, spec.property); | |
1347 | } |