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b85e4829 AC |
1 | /* The common simulator framework for GDB, the GNU Debugger. |
2 | ||
3 | Copyright 2002 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 2 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, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
23 | ||
c906108c SS |
24 | |
25 | #include "hw-main.h" | |
26 | #include "hw-base.h" | |
27 | #include "hw-tree.h" | |
28 | ||
c2c6d25f | 29 | #include "sim-io.h" |
c906108c SS |
30 | #include "sim-assert.h" |
31 | ||
32 | #ifdef HAVE_STDLIB_H | |
33 | #include <stdlib.h> | |
34 | #endif | |
35 | ||
36 | #ifdef HAVE_STRING_H | |
37 | #include <string.h> | |
38 | #else | |
39 | #ifdef HAVE_STRINGS_H | |
40 | #include <strings.h> | |
41 | #endif | |
42 | #endif | |
43 | ||
44 | #include <ctype.h> | |
45 | ||
46 | /* manipulate/lookup device names */ | |
47 | ||
48 | typedef struct _name_specifier { | |
49 | ||
50 | /* components in the full length name */ | |
51 | char *path; | |
52 | char *property; | |
53 | char *value; | |
54 | ||
55 | /* current device */ | |
56 | char *family; | |
57 | char *name; | |
58 | char *unit; | |
59 | char *args; | |
60 | ||
61 | /* previous device */ | |
62 | char *last_name; | |
63 | char *last_family; | |
64 | char *last_unit; | |
65 | char *last_args; | |
66 | ||
67 | /* work area */ | |
68 | char buf[1024]; | |
69 | ||
70 | } name_specifier; | |
71 | ||
72 | ||
73 | ||
74 | /* Given a device specifier, break it up into its main components: | |
75 | path (and if present) property name and property value. */ | |
76 | ||
77 | static int | |
78 | split_device_specifier (struct hw *current, | |
79 | const char *device_specifier, | |
80 | name_specifier *spec) | |
81 | { | |
82 | char *chp = NULL; | |
83 | ||
84 | /* expand any leading alias if present */ | |
85 | if (current != NULL | |
86 | && *device_specifier != '\0' | |
87 | && *device_specifier != '.' | |
88 | && *device_specifier != '/') | |
89 | { | |
90 | struct hw *aliases = hw_tree_find_device (current, "/aliases"); | |
91 | char alias[32]; | |
92 | int len = 0; | |
93 | while (device_specifier[len] != '\0' | |
94 | && device_specifier[len] != '/' | |
95 | && device_specifier[len] != ':' | |
96 | && !isspace (device_specifier[len])) | |
97 | { | |
98 | alias[len] = device_specifier[len]; | |
99 | len++; | |
100 | if (len >= sizeof(alias)) | |
101 | hw_abort (NULL, "split_device_specifier: buffer overflow"); | |
102 | } | |
103 | alias[len] = '\0'; | |
104 | if (aliases != NULL | |
105 | && hw_find_property (aliases, alias)) | |
106 | { | |
107 | strcpy (spec->buf, hw_find_string_property(aliases, alias)); | |
108 | strcat (spec->buf, device_specifier + len); | |
109 | } | |
110 | else | |
111 | { | |
112 | strcpy (spec->buf, device_specifier); | |
113 | } | |
114 | } | |
115 | else | |
116 | { | |
117 | strcpy(spec->buf, device_specifier); | |
118 | } | |
119 | ||
120 | /* check no overflow */ | |
121 | if (strlen(spec->buf) >= sizeof(spec->buf)) | |
122 | hw_abort (NULL, "split_device_specifier: buffer overflow\n"); | |
123 | ||
124 | /* strip leading spaces */ | |
125 | chp = spec->buf; | |
126 | while (*chp != '\0' && isspace(*chp)) | |
127 | chp++; | |
128 | if (*chp == '\0') | |
129 | return 0; | |
130 | ||
131 | /* find the path and terminate it with null */ | |
132 | spec->path = chp; | |
133 | while (*chp != '\0' && !isspace(*chp)) | |
134 | chp++; | |
135 | if (*chp != '\0') | |
136 | { | |
137 | *chp = '\0'; | |
138 | chp++; | |
139 | } | |
140 | ||
141 | /* and any value */ | |
142 | while (*chp != '\0' && isspace(*chp)) | |
143 | chp++; | |
144 | spec->value = chp; | |
145 | ||
146 | /* now go back and chop the property off of the path */ | |
147 | if (spec->value[0] == '\0') | |
148 | { | |
149 | spec->property = NULL; /*not a property*/ | |
150 | spec->value = NULL; | |
151 | } | |
152 | else if (spec->value[0] == '>' | |
153 | || spec->value[0] == '<') | |
154 | { | |
155 | /* an interrupt spec */ | |
156 | spec->property = NULL; | |
157 | } | |
158 | else { | |
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 | *chp = '\0'; | |
167 | spec->property = chp+1; | |
168 | } | |
169 | } | |
170 | ||
171 | /* and mark the rest as invalid */ | |
172 | spec->name = NULL; | |
173 | spec->family = NULL; | |
174 | spec->unit = NULL; | |
175 | spec->args = NULL; | |
176 | spec->last_name = NULL; | |
177 | spec->last_family = NULL; | |
178 | spec->last_unit = NULL; | |
179 | spec->last_args = NULL; | |
180 | ||
181 | return 1; | |
182 | } | |
183 | ||
184 | ||
185 | /* given a device specifier break it up into its main components - | |
186 | path and property name - assuming that the last `device' is a | |
187 | property name. */ | |
188 | ||
189 | static int | |
190 | split_property_specifier (struct hw *current, | |
191 | const char *property_specifier, | |
192 | name_specifier *spec) | |
193 | { | |
194 | if (split_device_specifier (current, property_specifier, spec)) | |
195 | { | |
196 | if (spec->property == NULL) | |
197 | { | |
198 | /* force the last name to be a property name */ | |
199 | char *chp = strrchr (spec->path, '/'); | |
200 | if (chp == NULL) | |
201 | { | |
202 | spec->property = spec->path; | |
203 | spec->path = strrchr (spec->property, '\0');; | |
204 | } | |
205 | else | |
206 | { | |
207 | *chp = '\0'; | |
208 | spec->property = chp + 1; | |
209 | } | |
210 | } | |
211 | return 1; | |
212 | } | |
213 | else | |
214 | return 0; | |
215 | } | |
216 | ||
217 | ||
218 | /* device the next device name and split it up, return 0 when no more | |
219 | names to struct hw */ | |
220 | ||
221 | static int | |
222 | split_device_name (name_specifier *spec) | |
223 | { | |
224 | char *chp; | |
225 | /* remember what came before */ | |
226 | spec->last_name = spec->name; | |
227 | spec->last_family = spec->family; | |
228 | spec->last_unit = spec->unit; | |
229 | spec->last_args = spec->args; | |
230 | /* finished? */ | |
231 | if (spec->path[0] == '\0') | |
232 | { | |
233 | spec->name = NULL; | |
234 | spec->family = NULL; | |
235 | spec->unit = NULL; | |
236 | spec->args = NULL; | |
237 | return 0; | |
238 | } | |
239 | /* break the current device spec from the path */ | |
240 | spec->name = spec->path; | |
241 | chp = strchr (spec->name, '/'); | |
242 | if (chp == NULL) | |
243 | spec->path = strchr (spec->name, '\0'); | |
244 | else | |
245 | { | |
246 | spec->path = chp+1; | |
247 | *chp = '\0'; | |
248 | } | |
249 | /* break out the base */ | |
250 | if (spec->name[0] == '(') | |
251 | { | |
252 | chp = strchr(spec->name, ')'); | |
253 | if (chp == NULL) | |
254 | { | |
255 | spec->family = spec->name; | |
256 | } | |
257 | else | |
258 | { | |
259 | *chp = '\0'; | |
260 | spec->family = spec->name + 1; | |
261 | spec->name = chp + 1; | |
262 | } | |
263 | } | |
264 | else | |
265 | { | |
266 | spec->family = spec->name; | |
267 | } | |
268 | /* now break out the unit */ | |
269 | chp = strchr(spec->name, '@'); | |
270 | if (chp == NULL) | |
271 | { | |
272 | spec->unit = NULL; | |
273 | chp = spec->name; | |
274 | } | |
275 | else | |
276 | { | |
277 | *chp = '\0'; | |
278 | chp += 1; | |
279 | spec->unit = chp; | |
280 | } | |
281 | /* finally any args */ | |
282 | chp = strchr(chp, ':'); | |
283 | if (chp == NULL) | |
284 | spec->args = NULL; | |
285 | else | |
286 | { | |
287 | *chp = '\0'; | |
288 | spec->args = chp+1; | |
289 | } | |
290 | return 1; | |
291 | } | |
292 | ||
293 | ||
294 | /* device the value, returning the next non-space token */ | |
295 | ||
296 | static char * | |
297 | split_value (name_specifier *spec) | |
298 | { | |
299 | char *token; | |
300 | if (spec->value == NULL) | |
301 | return NULL; | |
302 | /* skip leading white space */ | |
303 | while (isspace (spec->value[0])) | |
304 | spec->value++; | |
305 | if (spec->value[0] == '\0') | |
306 | { | |
307 | spec->value = NULL; | |
308 | return NULL; | |
309 | } | |
310 | token = spec->value; | |
311 | /* find trailing space */ | |
312 | while (spec->value[0] != '\0' && !isspace (spec->value[0])) | |
313 | spec->value++; | |
314 | /* chop this value out */ | |
315 | if (spec->value[0] != '\0') | |
316 | { | |
317 | spec->value[0] = '\0'; | |
318 | spec->value++; | |
319 | } | |
320 | return token; | |
321 | } | |
322 | ||
323 | ||
324 | ||
325 | /* traverse the path specified by spec starting at current */ | |
326 | ||
327 | static struct hw * | |
328 | split_find_device (struct hw *current, | |
329 | name_specifier *spec) | |
330 | { | |
331 | /* strip off (and process) any leading ., .., ./ and / */ | |
332 | while (1) | |
333 | { | |
334 | if (strncmp (spec->path, "/", strlen ("/")) == 0) | |
335 | { | |
336 | /* cd /... */ | |
337 | while (current != NULL && hw_parent (current) != NULL) | |
338 | current = hw_parent (current); | |
339 | spec->path += strlen ("/"); | |
340 | } | |
341 | else if (strncmp (spec->path, "./", strlen ("./")) == 0) | |
342 | { | |
343 | /* cd ./... */ | |
344 | current = current; | |
345 | spec->path += strlen ("./"); | |
346 | } | |
347 | else if (strncmp (spec->path, "../", strlen ("../")) == 0) | |
348 | { | |
349 | /* cd ../... */ | |
350 | if (current != NULL && hw_parent (current) != NULL) | |
351 | current = hw_parent (current); | |
352 | spec->path += strlen ("../"); | |
353 | } | |
354 | else if (strcmp (spec->path, ".") == 0) | |
355 | { | |
356 | /* cd . */ | |
357 | current = current; | |
358 | spec->path += strlen ("."); | |
359 | } | |
360 | else if (strcmp (spec->path, "..") == 0) | |
361 | { | |
362 | /* cd .. */ | |
363 | if (current != NULL && hw_parent (current) != NULL) | |
364 | current = hw_parent (current); | |
365 | spec->path += strlen (".."); | |
366 | } | |
367 | else | |
368 | break; | |
369 | } | |
370 | ||
371 | /* now go through the path proper */ | |
372 | ||
373 | if (current == NULL) | |
374 | { | |
375 | split_device_name (spec); | |
376 | return NULL; | |
377 | } | |
378 | ||
379 | while (split_device_name (spec)) | |
380 | { | |
381 | struct hw *child; | |
382 | for (child = hw_child (current); | |
383 | child != NULL; child = hw_sibling (child)) | |
384 | { | |
385 | if (strcmp (spec->name, hw_name (child)) == 0) | |
386 | { | |
387 | if (spec->unit == NULL) | |
388 | break; | |
389 | else | |
390 | { | |
391 | hw_unit phys; | |
392 | hw_unit_decode (current, spec->unit, &phys); | |
393 | if (memcmp (&phys, hw_unit_address (child), | |
394 | sizeof (hw_unit)) == 0) | |
395 | break; | |
396 | } | |
397 | } | |
398 | } | |
399 | if (child == NULL) | |
400 | return current; /* search failed */ | |
401 | current = child; | |
402 | } | |
403 | ||
404 | return current; | |
405 | } | |
406 | ||
407 | ||
408 | static struct hw * | |
409 | split_fill_path (struct hw *current, | |
410 | const char *device_specifier, | |
411 | name_specifier *spec) | |
412 | { | |
413 | /* break it up */ | |
414 | if (!split_device_specifier (current, device_specifier, spec)) | |
415 | hw_abort (current, "error parsing %s\n", device_specifier); | |
416 | ||
417 | /* fill our tree with its contents */ | |
418 | current = split_find_device (current, spec); | |
419 | ||
420 | /* add any additional devices as needed */ | |
421 | if (spec->name != NULL) | |
422 | { | |
423 | do | |
424 | { | |
425 | if (current != NULL && !hw_finished_p (current)) | |
426 | hw_finish (current); | |
427 | current = hw_create (NULL, | |
428 | current, | |
429 | spec->family, | |
430 | spec->name, | |
431 | spec->unit, | |
432 | spec->args); | |
433 | } | |
434 | while (split_device_name (spec)); | |
435 | } | |
436 | ||
437 | return current; | |
438 | } | |
439 | ||
440 | \f | |
441 | /* <non-white-space> */ | |
442 | ||
443 | static const char * | |
444 | skip_token(const char *chp) | |
445 | { | |
446 | while (!isspace(*chp) && *chp != '\0') | |
447 | chp++; | |
448 | while (isspace(*chp) && *chp != '\0') | |
449 | chp++; | |
450 | return chp; | |
451 | } | |
452 | ||
453 | ||
454 | /* count the number of entries */ | |
455 | ||
456 | static int | |
457 | count_entries (struct hw *current, | |
458 | const char *property_name, | |
459 | const char *property_value, | |
460 | int modulo) | |
461 | { | |
462 | const char *chp = property_value; | |
463 | int nr_entries = 0; | |
464 | while (*chp != '\0') | |
465 | { | |
466 | nr_entries += 1; | |
467 | chp = skip_token (chp); | |
468 | } | |
469 | if ((nr_entries % modulo) != 0) | |
470 | { | |
471 | hw_abort (current, "incorrect number of entries for %s property %s, should be multiple of %d", | |
472 | property_name, property_value, modulo); | |
473 | } | |
474 | return nr_entries / modulo; | |
475 | } | |
476 | ||
477 | ||
478 | ||
479 | /* parse: <address> ::= <token> ; device dependant */ | |
480 | ||
481 | static const char * | |
482 | parse_address (struct hw *current, | |
483 | struct hw *bus, | |
484 | const char *chp, | |
485 | hw_unit *address) | |
486 | { | |
487 | if (hw_unit_decode (bus, chp, address) < 0) | |
488 | hw_abort (current, "invalid unit address in %s", chp); | |
489 | return skip_token (chp); | |
490 | } | |
491 | ||
492 | ||
493 | /* parse: <size> ::= <number> { "," <number> } ; */ | |
494 | ||
495 | static const char * | |
496 | parse_size (struct hw *current, | |
497 | struct hw *bus, | |
498 | const char *chp, | |
499 | hw_unit *size) | |
500 | { | |
501 | int i; | |
502 | int nr; | |
503 | const char *curr = chp; | |
504 | memset(size, 0, sizeof(*size)); | |
505 | /* parse the numeric list */ | |
506 | size->nr_cells = hw_unit_nr_size_cells (bus); | |
507 | nr = 0; | |
508 | while (1) | |
509 | { | |
510 | char *next; | |
511 | size->cells[nr] = strtoul (curr, &next, 0); | |
512 | if (curr == next) | |
513 | hw_abort (current, "Problem parsing <size> %s", chp); | |
514 | nr += 1; | |
515 | if (next[0] != ',') | |
516 | break; | |
517 | if (nr == size->nr_cells) | |
518 | hw_abort (current, "Too many values in <size> %s", chp); | |
519 | curr = next + 1; | |
520 | } | |
521 | ASSERT (nr > 0 && nr <= size->nr_cells); | |
522 | /* right align the numbers */ | |
523 | for (i = 1; i <= size->nr_cells; i++) | |
524 | { | |
525 | if (i <= nr) | |
526 | size->cells[size->nr_cells - i] = size->cells[nr - i]; | |
527 | else | |
528 | size->cells[size->nr_cells - i] = 0; | |
529 | } | |
530 | return skip_token (chp); | |
531 | } | |
532 | ||
533 | ||
534 | /* parse: <reg> ::= { <address> <size> } ; */ | |
535 | ||
536 | static void | |
537 | parse_reg_property (struct hw *current, | |
538 | const char *property_name, | |
539 | const char *property_value) | |
540 | { | |
541 | int nr_regs; | |
542 | int reg_nr; | |
543 | reg_property_spec *regs; | |
544 | const char *chp; | |
545 | ||
546 | /* determine the number of reg entries by counting tokens */ | |
547 | nr_regs = count_entries (current, property_name, property_value, 2); | |
548 | ||
549 | /* create working space */ | |
550 | regs = zalloc (nr_regs * sizeof (*regs)); | |
551 | ||
552 | /* fill it in */ | |
553 | chp = property_value; | |
554 | for (reg_nr = 0; reg_nr < nr_regs; reg_nr++) | |
555 | { | |
556 | chp = parse_address (current, hw_parent(current), | |
557 | chp, ®s[reg_nr].address); | |
558 | chp = parse_size (current, hw_parent(current), | |
559 | chp, ®s[reg_nr].size); | |
560 | } | |
561 | ||
562 | /* create it */ | |
563 | hw_add_reg_array_property (current, property_name, | |
564 | regs, nr_regs); | |
565 | ||
566 | zfree (regs); | |
567 | } | |
568 | ||
569 | ||
570 | /* { <child-address> <parent-address> <child-size> }* */ | |
571 | ||
572 | static void | |
573 | parse_ranges_property (struct hw *current, | |
574 | const char *property_name, | |
575 | const char *property_value) | |
576 | { | |
577 | int nr_ranges; | |
578 | int range_nr; | |
579 | range_property_spec *ranges; | |
580 | const char *chp; | |
581 | ||
582 | /* determine the number of ranges specified */ | |
583 | nr_ranges = count_entries (current, property_name, property_value, 3); | |
584 | ||
585 | /* create a property of that size */ | |
586 | ranges = zalloc (nr_ranges * sizeof(*ranges)); | |
587 | ||
588 | /* fill it in */ | |
589 | chp = property_value; | |
590 | for (range_nr = 0; range_nr < nr_ranges; range_nr++) | |
591 | { | |
592 | chp = parse_address (current, current, | |
593 | chp, &ranges[range_nr].child_address); | |
594 | chp = parse_address (current, hw_parent(current), | |
595 | chp, &ranges[range_nr].parent_address); | |
596 | chp = parse_size (current, current, | |
597 | chp, &ranges[range_nr].size); | |
598 | } | |
599 | ||
600 | /* create it */ | |
601 | hw_add_range_array_property (current, property_name, ranges, nr_ranges); | |
602 | ||
603 | zfree (ranges); | |
604 | } | |
605 | ||
606 | ||
607 | /* <integer> ... */ | |
608 | ||
609 | static void | |
610 | parse_integer_property (struct hw *current, | |
611 | const char *property_name, | |
612 | const char *property_value) | |
613 | { | |
614 | int nr_entries; | |
615 | unsigned_cell words[1024]; | |
616 | /* integer or integer array? */ | |
617 | nr_entries = 0; | |
618 | while (1) | |
619 | { | |
620 | char *end; | |
621 | words[nr_entries] = strtoul (property_value, &end, 0); | |
622 | if (property_value == end) | |
623 | break; | |
624 | nr_entries += 1; | |
625 | if (nr_entries * sizeof (words[0]) >= sizeof (words)) | |
626 | hw_abort (current, "buffer overflow"); | |
627 | property_value = end; | |
628 | } | |
629 | if (nr_entries == 0) | |
630 | hw_abort (current, "error parsing integer property %s (%s)", | |
631 | property_name, property_value); | |
632 | else if (nr_entries == 1) | |
633 | hw_add_integer_property (current, property_name, words[0]); | |
634 | else | |
635 | { | |
636 | int i; | |
637 | for (i = 0; i < nr_entries; i++) | |
638 | { | |
639 | H2BE (words[i]); | |
640 | } | |
641 | /* perhaphs integer array property is better */ | |
642 | hw_add_array_property (current, property_name, words, | |
643 | sizeof(words[0]) * nr_entries); | |
644 | } | |
645 | } | |
646 | ||
647 | ||
648 | /* <string> ... */ | |
649 | ||
650 | static void | |
651 | parse_string_property (struct hw *current, | |
652 | const char *property_name, | |
653 | const char *property_value) | |
654 | { | |
655 | char **strings; | |
656 | const char *chp; | |
657 | int nr_strings; | |
658 | int approx_nr_strings; | |
659 | ||
660 | /* get an estimate as to the number of strings by counting double | |
661 | quotes */ | |
662 | approx_nr_strings = 2; | |
663 | for (chp = property_value; *chp; chp++) | |
664 | { | |
665 | if (*chp == '"') | |
666 | approx_nr_strings++; | |
667 | } | |
668 | approx_nr_strings = (approx_nr_strings) / 2; | |
669 | ||
670 | /* create a string buffer for that many (plus a null) */ | |
671 | strings = (char**) zalloc ((approx_nr_strings + 1) * sizeof(char*)); | |
672 | ||
673 | /* now find all the strings */ | |
674 | chp = property_value; | |
675 | nr_strings = 0; | |
676 | while (1) | |
677 | { | |
678 | ||
679 | /* skip leading space */ | |
680 | while (*chp != '\0' && isspace (*chp)) | |
681 | chp += 1; | |
682 | if (*chp == '\0') | |
683 | break; | |
684 | ||
685 | /* copy it in */ | |
686 | if (*chp == '"') | |
687 | { | |
6439295f | 688 | /* a quoted string - watch for '\' et al. */ |
c906108c SS |
689 | /* estimate the size and allocate space for it */ |
690 | int pos; | |
691 | chp++; | |
692 | pos = 0; | |
693 | while (chp[pos] != '\0' && chp[pos] != '"') | |
694 | { | |
695 | if (chp[pos] == '\\' && chp[pos+1] != '\0') | |
696 | pos += 2; | |
697 | else | |
698 | pos += 1; | |
699 | } | |
700 | strings[nr_strings] = zalloc (pos + 1); | |
701 | /* copy the string over */ | |
702 | pos = 0; | |
703 | while (*chp != '\0' && *chp != '"') | |
704 | { | |
705 | if (*chp == '\\' && *(chp+1) != '\0') { | |
706 | strings[nr_strings][pos] = *(chp+1); | |
707 | chp += 2; | |
708 | pos++; | |
709 | } | |
710 | else | |
711 | { | |
712 | strings[nr_strings][pos] = *chp; | |
713 | chp += 1; | |
714 | pos++; | |
715 | } | |
716 | } | |
717 | if (*chp != '\0') | |
718 | chp++; | |
719 | strings[nr_strings][pos] = '\0'; | |
720 | } | |
721 | else | |
722 | { | |
723 | /* copy over a single unquoted token */ | |
724 | int len = 0; | |
725 | while (chp[len] != '\0' && !isspace(chp[len])) | |
726 | len++; | |
727 | strings[nr_strings] = zalloc(len + 1); | |
728 | strncpy(strings[nr_strings], chp, len); | |
729 | strings[nr_strings][len] = '\0'; | |
730 | chp += len; | |
731 | } | |
732 | nr_strings++; | |
733 | if (nr_strings > approx_nr_strings) | |
734 | hw_abort (current, "String property %s badly formatted", | |
735 | property_name); | |
736 | } | |
737 | ASSERT (strings[nr_strings] == NULL); /* from zalloc */ | |
738 | ||
739 | /* install it */ | |
740 | if (nr_strings == 0) | |
741 | hw_add_string_property (current, property_name, ""); | |
742 | else if (nr_strings == 1) | |
743 | hw_add_string_property (current, property_name, strings[0]); | |
744 | else | |
745 | { | |
746 | const char **specs = (const char**) strings; /* stop a bogus error */ | |
747 | hw_add_string_array_property (current, property_name, | |
748 | specs, nr_strings); | |
749 | } | |
750 | ||
751 | /* flush the created string */ | |
752 | while (nr_strings > 0) | |
753 | { | |
754 | nr_strings--; | |
755 | zfree (strings[nr_strings]); | |
756 | } | |
757 | zfree(strings); | |
758 | } | |
759 | ||
760 | ||
761 | /* <path-to-ihandle-device> */ | |
762 | ||
763 | #if NOT_YET | |
764 | static void | |
765 | parse_ihandle_property (struct hw *current, | |
766 | const char *property, | |
767 | const char *value) | |
768 | { | |
769 | ihandle_runtime_property_spec ihandle; | |
770 | ||
771 | /* pass the full path */ | |
772 | ihandle.full_path = value; | |
773 | ||
774 | /* save this ready for the ihandle create */ | |
775 | hw_add_ihandle_runtime_property (current, property, | |
776 | &ihandle); | |
777 | } | |
778 | #endif | |
779 | ||
780 | ||
781 | struct hw * | |
782 | hw_tree_create (SIM_DESC sd, | |
783 | const char *family) | |
784 | { | |
785 | return hw_create (sd, NULL, family, family, NULL, NULL); | |
786 | } | |
787 | ||
788 | void | |
789 | hw_tree_delete (struct hw *me) | |
790 | { | |
791 | /* Need to allow devices to disapear under our feet */ | |
792 | while (hw_child (me) != NULL) | |
793 | { | |
794 | hw_tree_delete (hw_child (me)); | |
795 | } | |
796 | hw_delete (me); | |
797 | } | |
798 | ||
799 | ||
800 | struct hw * | |
801 | hw_tree_parse (struct hw *current, | |
802 | const char *fmt, | |
803 | ...) | |
804 | { | |
805 | va_list ap; | |
806 | va_start (ap, fmt); | |
807 | current = hw_tree_vparse (current, fmt, ap); | |
808 | va_end (ap); | |
809 | return current; | |
810 | } | |
811 | ||
812 | struct hw * | |
813 | hw_tree_vparse (struct hw *current, | |
814 | const char *fmt, | |
815 | va_list ap) | |
816 | { | |
817 | char device_specifier[1024]; | |
818 | name_specifier spec; | |
819 | ||
820 | /* format the path */ | |
821 | vsprintf (device_specifier, fmt, ap); | |
822 | if (strlen (device_specifier) >= sizeof (device_specifier)) | |
823 | hw_abort (NULL, "device_tree_add_deviced: buffer overflow\n"); | |
824 | ||
825 | /* construct the tree down to the final struct hw */ | |
826 | current = split_fill_path (current, device_specifier, &spec); | |
827 | ||
828 | /* is there an interrupt spec */ | |
829 | if (spec.property == NULL | |
830 | && spec.value != NULL) | |
831 | { | |
832 | char *op = split_value (&spec); | |
833 | switch (op[0]) | |
834 | { | |
835 | case '>': | |
836 | { | |
837 | char *my_port_name = split_value (&spec); | |
838 | int my_port; | |
839 | char *dest_port_name = split_value (&spec); | |
840 | int dest_port; | |
841 | name_specifier dest_spec; | |
842 | char *dest_hw_name = split_value (&spec); | |
843 | struct hw *dest; | |
844 | /* find my name */ | |
845 | if (!hw_finished_p (current)) | |
846 | hw_finish (current); | |
847 | my_port = hw_port_decode (current, my_port_name, output_port); | |
848 | /* find the dest device and port */ | |
849 | dest = split_fill_path (current, dest_hw_name, &dest_spec); | |
850 | if (!hw_finished_p (dest)) | |
851 | hw_finish (dest); | |
852 | dest_port = hw_port_decode (dest, dest_port_name, | |
853 | input_port); | |
854 | /* connect the two */ | |
855 | hw_port_attach (current, | |
856 | my_port, | |
857 | dest, | |
858 | dest_port, | |
859 | permenant_object); | |
860 | break; | |
861 | } | |
862 | default: | |
863 | hw_abort (current, "unreconised interrupt spec %s\n", spec.value); | |
864 | break; | |
865 | } | |
866 | } | |
867 | ||
868 | /* is there a property */ | |
869 | if (spec.property != NULL) | |
870 | { | |
871 | if (strcmp (spec.value, "true") == 0) | |
872 | hw_add_boolean_property (current, spec.property, 1); | |
873 | else if (strcmp (spec.value, "false") == 0) | |
874 | hw_add_boolean_property (current, spec.property, 0); | |
875 | else | |
876 | { | |
877 | const struct hw_property *property; | |
878 | switch (spec.value[0]) | |
879 | { | |
880 | #if NOT_YET | |
881 | case '*': | |
882 | { | |
883 | parse_ihandle_property (current, spec.property, spec.value + 1); | |
884 | break; | |
885 | } | |
886 | #endif | |
887 | case '[': | |
888 | { | |
889 | unsigned8 words[1024]; | |
890 | char *curr = spec.value + 1; | |
891 | int nr_words = 0; | |
892 | while (1) | |
893 | { | |
894 | char *next; | |
895 | words[nr_words] = H2BE_1 (strtoul (curr, &next, 0)); | |
896 | if (curr == next) | |
897 | break; | |
898 | curr = next; | |
899 | nr_words += 1; | |
900 | } | |
901 | hw_add_array_property (current, spec.property, | |
902 | words, sizeof(words[0]) * nr_words); | |
903 | break; | |
904 | } | |
905 | case '"': | |
906 | { | |
907 | parse_string_property (current, spec.property, spec.value); | |
908 | break; | |
909 | } | |
910 | case '!': | |
911 | { | |
912 | spec.value++; | |
913 | property = hw_tree_find_property (current, spec.value); | |
914 | if (property == NULL) | |
915 | hw_abort (current, "property %s not found\n", spec.value); | |
916 | hw_add_duplicate_property (current, | |
917 | spec.property, | |
918 | property); | |
919 | break; | |
920 | } | |
921 | default: | |
922 | { | |
923 | if (strcmp (spec.property, "reg") == 0 | |
924 | || strcmp (spec.property, "assigned-addresses") == 0 | |
925 | || strcmp (spec.property, "alternate-reg") == 0) | |
926 | { | |
927 | parse_reg_property (current, spec.property, spec.value); | |
928 | } | |
929 | else if (strcmp (spec.property, "ranges") == 0) | |
930 | { | |
931 | parse_ranges_property (current, spec.property, spec.value); | |
932 | } | |
933 | else if (isdigit(spec.value[0]) | |
934 | || (spec.value[0] == '-' && isdigit(spec.value[1])) | |
935 | || (spec.value[0] == '+' && isdigit(spec.value[1]))) | |
936 | { | |
937 | parse_integer_property(current, spec.property, spec.value); | |
938 | } | |
939 | else | |
940 | parse_string_property(current, spec.property, spec.value); | |
941 | break; | |
942 | } | |
943 | } | |
944 | } | |
945 | } | |
946 | return current; | |
947 | } | |
948 | ||
949 | ||
950 | static void | |
951 | finish_hw_tree (struct hw *me, | |
952 | void *data) | |
953 | { | |
954 | if (!hw_finished_p (me)) | |
955 | hw_finish (me); | |
956 | } | |
957 | ||
958 | void | |
959 | hw_tree_finish (struct hw *root) | |
960 | { | |
961 | hw_tree_traverse (root, finish_hw_tree, NULL, NULL); | |
962 | } | |
963 | ||
964 | ||
965 | ||
966 | void | |
967 | hw_tree_traverse (struct hw *root, | |
968 | hw_tree_traverse_function *prefix, | |
969 | hw_tree_traverse_function *postfix, | |
970 | void *data) | |
971 | { | |
972 | struct hw *child; | |
973 | if (prefix != NULL) | |
974 | prefix (root, data); | |
975 | for (child = hw_child (root); | |
976 | child != NULL; | |
977 | child = hw_sibling (child)) | |
978 | { | |
979 | hw_tree_traverse (child, prefix, postfix, data); | |
980 | } | |
981 | if (postfix != NULL) | |
982 | postfix (root, data); | |
983 | } | |
984 | ||
985 | ||
986 | \f | |
987 | struct printer { | |
988 | hw_tree_print_callback *print; | |
989 | void *file; | |
990 | }; | |
991 | ||
992 | static void | |
993 | print_address (struct hw *bus, | |
994 | const hw_unit *phys, | |
995 | struct printer *p) | |
996 | { | |
997 | char unit[32]; | |
998 | hw_unit_encode (bus, phys, unit, sizeof(unit)); | |
999 | p->print (p->file, " %s", unit); | |
1000 | } | |
1001 | ||
1002 | static void | |
1003 | print_size (struct hw *bus, | |
1004 | const hw_unit *size, | |
1005 | struct printer *p) | |
1006 | { | |
1007 | int i; | |
1008 | for (i = 0; i < size->nr_cells; i++) | |
1009 | if (size->cells[i] != 0) | |
1010 | break; | |
1011 | if (i < size->nr_cells) { | |
1012 | p->print (p->file, " 0x%lx", (unsigned long) size->cells[i]); | |
1013 | i++; | |
1014 | for (; i < size->nr_cells; i++) | |
1015 | p->print (p->file, ",0x%lx", (unsigned long) size->cells[i]); | |
1016 | } | |
1017 | else | |
1018 | p->print (p->file, " 0"); | |
1019 | } | |
1020 | ||
1021 | static void | |
1022 | print_reg_property (struct hw *me, | |
1023 | const struct hw_property *property, | |
1024 | struct printer *p) | |
1025 | { | |
1026 | int reg_nr; | |
1027 | reg_property_spec reg; | |
1028 | for (reg_nr = 0; | |
1029 | hw_find_reg_array_property (me, property->name, reg_nr, ®); | |
1030 | reg_nr++) { | |
1031 | print_address (hw_parent (me), ®.address, p); | |
1032 | print_size (me, ®.size, p); | |
1033 | } | |
1034 | } | |
1035 | ||
1036 | static void | |
1037 | print_ranges_property (struct hw *me, | |
1038 | const struct hw_property *property, | |
1039 | struct printer *p) | |
1040 | { | |
1041 | int range_nr; | |
1042 | range_property_spec range; | |
1043 | for (range_nr = 0; | |
1044 | hw_find_range_array_property (me, property->name, range_nr, &range); | |
1045 | range_nr++) | |
1046 | { | |
1047 | print_address (me, &range.child_address, p); | |
1048 | print_address (hw_parent (me), &range.parent_address, p); | |
1049 | print_size (me, &range.size, p); | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | static void | |
1054 | print_string (struct hw *me, | |
1055 | const char *string, | |
1056 | struct printer *p) | |
1057 | { | |
1058 | p->print (p->file, " \""); | |
1059 | while (*string != '\0') { | |
1060 | switch (*string) { | |
1061 | case '"': | |
1062 | p->print (p->file, "\\\""); | |
1063 | break; | |
1064 | case '\\': | |
1065 | p->print (p->file, "\\\\"); | |
1066 | break; | |
1067 | default: | |
1068 | p->print (p->file, "%c", *string); | |
1069 | break; | |
1070 | } | |
1071 | string++; | |
1072 | } | |
1073 | p->print (p->file, "\""); | |
1074 | } | |
1075 | ||
1076 | static void | |
1077 | print_string_array_property (struct hw *me, | |
1078 | const struct hw_property *property, | |
1079 | struct printer *p) | |
1080 | { | |
1081 | int nr; | |
1082 | string_property_spec string; | |
1083 | for (nr = 0; | |
1084 | hw_find_string_array_property (me, property->name, nr, &string); | |
1085 | nr++) | |
1086 | { | |
1087 | print_string (me, string, p); | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | static void | |
1092 | print_properties (struct hw *me, | |
1093 | struct printer *p) | |
1094 | { | |
1095 | const struct hw_property *property; | |
1096 | for (property = hw_find_property (me, NULL); | |
1097 | property != NULL; | |
1098 | property = hw_next_property (property)) | |
1099 | { | |
1100 | if (hw_parent (me) == NULL) | |
1101 | p->print (p->file, "/%s", property->name); | |
1102 | else | |
1103 | p->print (p->file, "%s/%s", hw_path (me), property->name); | |
1104 | if (property->original != NULL) | |
1105 | { | |
1106 | p->print (p->file, " !"); | |
1107 | p->print (p->file, "%s/%s", | |
1108 | hw_path (property->original->owner), | |
1109 | property->original->name); | |
1110 | } | |
1111 | else | |
1112 | { | |
1113 | switch (property->type) | |
1114 | { | |
1115 | case array_property: | |
1116 | { | |
1117 | if ((property->sizeof_array % sizeof (signed_cell)) == 0) | |
1118 | { | |
1119 | unsigned_cell *w = (unsigned_cell*) property->array; | |
1120 | int cell_nr; | |
1121 | for (cell_nr = 0; | |
1122 | cell_nr < (property->sizeof_array / sizeof (unsigned_cell)); | |
1123 | cell_nr++) | |
1124 | { | |
1125 | p->print (p->file, " 0x%lx", (unsigned long) BE2H_cell (w[cell_nr])); | |
1126 | } | |
1127 | } | |
1128 | else | |
1129 | { | |
1130 | unsigned8 *w = (unsigned8*)property->array; | |
1131 | p->print (p->file, " ["); | |
1132 | while ((char*)w - (char*)property->array < property->sizeof_array) { | |
1133 | p->print (p->file, " 0x%2x", BE2H_1 (*w)); | |
1134 | w++; | |
1135 | } | |
1136 | } | |
1137 | break; | |
1138 | } | |
1139 | case boolean_property: | |
1140 | { | |
1141 | int b = hw_find_boolean_property(me, property->name); | |
1142 | p->print (p->file, " %s", b ? "true" : "false"); | |
1143 | break; | |
1144 | } | |
1145 | #if NOT_YET | |
1146 | case ihandle_property: | |
1147 | { | |
1148 | if (property->array != NULL) | |
1149 | { | |
1150 | device_instance *instance = hw_find_ihandle_property (me, property->name); | |
1151 | p->print (p->file, " *%s", device_instance_path(instance)); | |
1152 | } | |
1153 | else | |
1154 | { | |
1155 | /* not yet initialized, ask the device for the path */ | |
1156 | ihandle_runtime_property_spec spec; | |
1157 | hw_find_ihandle_runtime_property (me, property->name, &spec); | |
1158 | p->print (p->file, " *%s", spec.full_path); | |
1159 | } | |
1160 | break; | |
1161 | } | |
1162 | #endif | |
1163 | case integer_property: | |
1164 | { | |
1165 | unsigned_word w = hw_find_integer_property (me, property->name); | |
1166 | p->print (p->file, " 0x%lx", (unsigned long)w); | |
1167 | break; | |
1168 | } | |
1169 | case range_array_property: | |
1170 | { | |
1171 | print_ranges_property (me, property, p); | |
1172 | break; | |
1173 | } | |
1174 | case reg_array_property: | |
1175 | { | |
1176 | print_reg_property (me, property, p); | |
1177 | break; | |
1178 | } | |
1179 | case string_property: | |
1180 | { | |
1181 | const char *s = hw_find_string_property (me, property->name); | |
1182 | print_string (me, s, p); | |
1183 | break; | |
1184 | } | |
1185 | case string_array_property: | |
1186 | { | |
1187 | print_string_array_property (me, property, p); | |
1188 | break; | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | p->print (p->file, "\n"); | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | static void | |
1197 | print_interrupts (struct hw *me, | |
1198 | int my_port, | |
1199 | struct hw *dest, | |
1200 | int dest_port, | |
1201 | void *data) | |
1202 | { | |
1203 | struct printer *p = data; | |
1204 | char src[32]; | |
1205 | char dst[32]; | |
1206 | hw_port_encode (me, my_port, src, sizeof(src), output_port); | |
1207 | hw_port_encode (dest, dest_port, dst, sizeof(dst), input_port); | |
1208 | p->print (p->file, | |
1209 | "%s > %s %s %s\n", | |
1210 | hw_path (me), | |
1211 | src, dst, | |
1212 | hw_path (dest)); | |
1213 | } | |
1214 | ||
1215 | static void | |
1216 | print_device (struct hw *me, | |
1217 | void *data) | |
1218 | { | |
1219 | struct printer *p = data; | |
1220 | p->print (p->file, "%s\n", hw_path (me)); | |
1221 | print_properties (me, p); | |
1222 | hw_port_traverse (me, print_interrupts, data); | |
1223 | } | |
1224 | ||
1225 | void | |
1226 | hw_tree_print (struct hw *root, | |
1227 | hw_tree_print_callback *print, | |
1228 | void *file) | |
1229 | { | |
1230 | struct printer p; | |
1231 | p.print = print; | |
1232 | p.file = file; | |
1233 | hw_tree_traverse (root, | |
1234 | print_device, NULL, | |
1235 | &p); | |
1236 | } | |
1237 | ||
1238 | ||
1239 | \f | |
1240 | #if NOT_YET | |
1241 | device_instance * | |
1242 | tree_instance(struct hw *root, | |
1243 | const char *device_specifier) | |
1244 | { | |
1245 | /* find the device node */ | |
1246 | struct hw *me; | |
1247 | name_specifier spec; | |
1248 | if (!split_device_specifier(root, device_specifier, &spec)) | |
1249 | return NULL; | |
1250 | me = split_find_device(root, &spec); | |
1251 | if (spec.name != NULL) | |
1252 | return NULL; | |
1253 | /* create the instance */ | |
1254 | return device_create_instance(me, device_specifier, spec.last_args); | |
1255 | } | |
1256 | #endif | |
1257 | ||
1258 | struct hw * | |
1259 | hw_tree_find_device (struct hw *root, | |
1260 | const char *path_to_device) | |
1261 | { | |
1262 | struct hw *node; | |
1263 | name_specifier spec; | |
1264 | ||
1265 | /* parse the path */ | |
1266 | split_device_specifier (root, path_to_device, &spec); | |
1267 | if (spec.value != NULL) | |
1268 | return NULL; /* something wierd */ | |
1269 | ||
1270 | /* now find it */ | |
1271 | node = split_find_device (root, &spec); | |
1272 | if (spec.name != NULL) | |
1273 | return NULL; /* not a leaf */ | |
1274 | ||
1275 | return node; | |
1276 | } | |
1277 | ||
1278 | ||
1279 | const struct hw_property * | |
1280 | hw_tree_find_property (struct hw *root, | |
1281 | const char *path_to_property) | |
1282 | { | |
1283 | name_specifier spec; | |
1284 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1285 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1286 | root = split_find_device (root, &spec); | |
1287 | if (spec.name != NULL) | |
1288 | return NULL; /* not a leaf */ | |
1289 | return hw_find_property (root, spec.property); | |
1290 | } | |
1291 | ||
1292 | int | |
1293 | hw_tree_find_boolean_property (struct hw *root, | |
1294 | const char *path_to_property) | |
1295 | { | |
1296 | name_specifier spec; | |
1297 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1298 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1299 | root = split_find_device (root, &spec); | |
1300 | if (spec.name != NULL) | |
1301 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1302 | spec.name, path_to_property); | |
1303 | return hw_find_boolean_property (root, spec.property); | |
1304 | } | |
1305 | ||
1306 | signed_cell | |
1307 | hw_tree_find_integer_property (struct hw *root, | |
1308 | const char *path_to_property) | |
1309 | { | |
1310 | name_specifier spec; | |
1311 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1312 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1313 | root = split_find_device (root, &spec); | |
1314 | if (spec.name != NULL) | |
1315 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1316 | spec.name, path_to_property); | |
1317 | return hw_find_integer_property (root, spec.property); | |
1318 | } | |
1319 | ||
1320 | #if NOT_YET | |
1321 | device_instance * | |
1322 | hw_tree_find_ihandle_property (struct hw *root, | |
1323 | const char *path_to_property) | |
1324 | { | |
1325 | struct hw *root; | |
1326 | name_specifier spec; | |
1327 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1328 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1329 | root = split_find_device (root, &spec); | |
1330 | if (spec.name != NULL) | |
1331 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1332 | spec.name, path_to_property); | |
1333 | return hw_find_ihandle_property (root, spec.property); | |
1334 | } | |
1335 | #endif | |
1336 | ||
1337 | const char * | |
1338 | hw_tree_find_string_property (struct hw *root, | |
1339 | const char *path_to_property) | |
1340 | { | |
1341 | name_specifier spec; | |
1342 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1343 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1344 | root = split_find_device (root, &spec); | |
1345 | if (spec.name != NULL) | |
1346 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1347 | spec.name, path_to_property); | |
1348 | return hw_find_string_property (root, spec.property); | |
1349 | } |