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c906108c SS |
1 | /* This file is part of the program psim. |
2 | ||
3 | Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au> | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | ||
19 | */ | |
20 | ||
21 | #include "hw-main.h" | |
22 | #include "hw-base.h" | |
23 | #include "hw-tree.h" | |
24 | ||
25 | #include "sim-assert.h" | |
26 | ||
27 | #ifdef HAVE_STDLIB_H | |
28 | #include <stdlib.h> | |
29 | #endif | |
30 | ||
31 | #ifdef HAVE_STRING_H | |
32 | #include <string.h> | |
33 | #else | |
34 | #ifdef HAVE_STRINGS_H | |
35 | #include <strings.h> | |
36 | #endif | |
37 | #endif | |
38 | ||
39 | #include <ctype.h> | |
40 | ||
41 | /* manipulate/lookup device names */ | |
42 | ||
43 | typedef struct _name_specifier { | |
44 | ||
45 | /* components in the full length name */ | |
46 | char *path; | |
47 | char *property; | |
48 | char *value; | |
49 | ||
50 | /* current device */ | |
51 | char *family; | |
52 | char *name; | |
53 | char *unit; | |
54 | char *args; | |
55 | ||
56 | /* previous device */ | |
57 | char *last_name; | |
58 | char *last_family; | |
59 | char *last_unit; | |
60 | char *last_args; | |
61 | ||
62 | /* work area */ | |
63 | char buf[1024]; | |
64 | ||
65 | } name_specifier; | |
66 | ||
67 | ||
68 | ||
69 | /* Given a device specifier, break it up into its main components: | |
70 | path (and if present) property name and property value. */ | |
71 | ||
72 | static int | |
73 | split_device_specifier (struct hw *current, | |
74 | const char *device_specifier, | |
75 | name_specifier *spec) | |
76 | { | |
77 | char *chp = NULL; | |
78 | ||
79 | /* expand any leading alias if present */ | |
80 | if (current != NULL | |
81 | && *device_specifier != '\0' | |
82 | && *device_specifier != '.' | |
83 | && *device_specifier != '/') | |
84 | { | |
85 | struct hw *aliases = hw_tree_find_device (current, "/aliases"); | |
86 | char alias[32]; | |
87 | int len = 0; | |
88 | while (device_specifier[len] != '\0' | |
89 | && device_specifier[len] != '/' | |
90 | && device_specifier[len] != ':' | |
91 | && !isspace (device_specifier[len])) | |
92 | { | |
93 | alias[len] = device_specifier[len]; | |
94 | len++; | |
95 | if (len >= sizeof(alias)) | |
96 | hw_abort (NULL, "split_device_specifier: buffer overflow"); | |
97 | } | |
98 | alias[len] = '\0'; | |
99 | if (aliases != NULL | |
100 | && hw_find_property (aliases, alias)) | |
101 | { | |
102 | strcpy (spec->buf, hw_find_string_property(aliases, alias)); | |
103 | strcat (spec->buf, device_specifier + len); | |
104 | } | |
105 | else | |
106 | { | |
107 | strcpy (spec->buf, device_specifier); | |
108 | } | |
109 | } | |
110 | else | |
111 | { | |
112 | strcpy(spec->buf, device_specifier); | |
113 | } | |
114 | ||
115 | /* check no overflow */ | |
116 | if (strlen(spec->buf) >= sizeof(spec->buf)) | |
117 | hw_abort (NULL, "split_device_specifier: buffer overflow\n"); | |
118 | ||
119 | /* strip leading spaces */ | |
120 | chp = spec->buf; | |
121 | while (*chp != '\0' && isspace(*chp)) | |
122 | chp++; | |
123 | if (*chp == '\0') | |
124 | return 0; | |
125 | ||
126 | /* find the path and terminate it with null */ | |
127 | spec->path = chp; | |
128 | while (*chp != '\0' && !isspace(*chp)) | |
129 | chp++; | |
130 | if (*chp != '\0') | |
131 | { | |
132 | *chp = '\0'; | |
133 | chp++; | |
134 | } | |
135 | ||
136 | /* and any value */ | |
137 | while (*chp != '\0' && isspace(*chp)) | |
138 | chp++; | |
139 | spec->value = chp; | |
140 | ||
141 | /* now go back and chop the property off of the path */ | |
142 | if (spec->value[0] == '\0') | |
143 | { | |
144 | spec->property = NULL; /*not a property*/ | |
145 | spec->value = NULL; | |
146 | } | |
147 | else if (spec->value[0] == '>' | |
148 | || spec->value[0] == '<') | |
149 | { | |
150 | /* an interrupt spec */ | |
151 | spec->property = NULL; | |
152 | } | |
153 | else { | |
154 | chp = strrchr(spec->path, '/'); | |
155 | if (chp == NULL) | |
156 | { | |
157 | spec->property = spec->path; | |
158 | spec->path = strchr(spec->property, '\0'); | |
159 | } | |
160 | else { | |
161 | *chp = '\0'; | |
162 | spec->property = chp+1; | |
163 | } | |
164 | } | |
165 | ||
166 | /* and mark the rest as invalid */ | |
167 | spec->name = NULL; | |
168 | spec->family = NULL; | |
169 | spec->unit = NULL; | |
170 | spec->args = NULL; | |
171 | spec->last_name = NULL; | |
172 | spec->last_family = NULL; | |
173 | spec->last_unit = NULL; | |
174 | spec->last_args = NULL; | |
175 | ||
176 | return 1; | |
177 | } | |
178 | ||
179 | ||
180 | /* given a device specifier break it up into its main components - | |
181 | path and property name - assuming that the last `device' is a | |
182 | property name. */ | |
183 | ||
184 | static int | |
185 | split_property_specifier (struct hw *current, | |
186 | const char *property_specifier, | |
187 | name_specifier *spec) | |
188 | { | |
189 | if (split_device_specifier (current, property_specifier, spec)) | |
190 | { | |
191 | if (spec->property == NULL) | |
192 | { | |
193 | /* force the last name to be a property name */ | |
194 | char *chp = strrchr (spec->path, '/'); | |
195 | if (chp == NULL) | |
196 | { | |
197 | spec->property = spec->path; | |
198 | spec->path = strrchr (spec->property, '\0');; | |
199 | } | |
200 | else | |
201 | { | |
202 | *chp = '\0'; | |
203 | spec->property = chp + 1; | |
204 | } | |
205 | } | |
206 | return 1; | |
207 | } | |
208 | else | |
209 | return 0; | |
210 | } | |
211 | ||
212 | ||
213 | /* device the next device name and split it up, return 0 when no more | |
214 | names to struct hw */ | |
215 | ||
216 | static int | |
217 | split_device_name (name_specifier *spec) | |
218 | { | |
219 | char *chp; | |
220 | /* remember what came before */ | |
221 | spec->last_name = spec->name; | |
222 | spec->last_family = spec->family; | |
223 | spec->last_unit = spec->unit; | |
224 | spec->last_args = spec->args; | |
225 | /* finished? */ | |
226 | if (spec->path[0] == '\0') | |
227 | { | |
228 | spec->name = NULL; | |
229 | spec->family = NULL; | |
230 | spec->unit = NULL; | |
231 | spec->args = NULL; | |
232 | return 0; | |
233 | } | |
234 | /* break the current device spec from the path */ | |
235 | spec->name = spec->path; | |
236 | chp = strchr (spec->name, '/'); | |
237 | if (chp == NULL) | |
238 | spec->path = strchr (spec->name, '\0'); | |
239 | else | |
240 | { | |
241 | spec->path = chp+1; | |
242 | *chp = '\0'; | |
243 | } | |
244 | /* break out the base */ | |
245 | if (spec->name[0] == '(') | |
246 | { | |
247 | chp = strchr(spec->name, ')'); | |
248 | if (chp == NULL) | |
249 | { | |
250 | spec->family = spec->name; | |
251 | } | |
252 | else | |
253 | { | |
254 | *chp = '\0'; | |
255 | spec->family = spec->name + 1; | |
256 | spec->name = chp + 1; | |
257 | } | |
258 | } | |
259 | else | |
260 | { | |
261 | spec->family = spec->name; | |
262 | } | |
263 | /* now break out the unit */ | |
264 | chp = strchr(spec->name, '@'); | |
265 | if (chp == NULL) | |
266 | { | |
267 | spec->unit = NULL; | |
268 | chp = spec->name; | |
269 | } | |
270 | else | |
271 | { | |
272 | *chp = '\0'; | |
273 | chp += 1; | |
274 | spec->unit = chp; | |
275 | } | |
276 | /* finally any args */ | |
277 | chp = strchr(chp, ':'); | |
278 | if (chp == NULL) | |
279 | spec->args = NULL; | |
280 | else | |
281 | { | |
282 | *chp = '\0'; | |
283 | spec->args = chp+1; | |
284 | } | |
285 | return 1; | |
286 | } | |
287 | ||
288 | ||
289 | /* device the value, returning the next non-space token */ | |
290 | ||
291 | static char * | |
292 | split_value (name_specifier *spec) | |
293 | { | |
294 | char *token; | |
295 | if (spec->value == NULL) | |
296 | return NULL; | |
297 | /* skip leading white space */ | |
298 | while (isspace (spec->value[0])) | |
299 | spec->value++; | |
300 | if (spec->value[0] == '\0') | |
301 | { | |
302 | spec->value = NULL; | |
303 | return NULL; | |
304 | } | |
305 | token = spec->value; | |
306 | /* find trailing space */ | |
307 | while (spec->value[0] != '\0' && !isspace (spec->value[0])) | |
308 | spec->value++; | |
309 | /* chop this value out */ | |
310 | if (spec->value[0] != '\0') | |
311 | { | |
312 | spec->value[0] = '\0'; | |
313 | spec->value++; | |
314 | } | |
315 | return token; | |
316 | } | |
317 | ||
318 | ||
319 | ||
320 | /* traverse the path specified by spec starting at current */ | |
321 | ||
322 | static struct hw * | |
323 | split_find_device (struct hw *current, | |
324 | name_specifier *spec) | |
325 | { | |
326 | /* strip off (and process) any leading ., .., ./ and / */ | |
327 | while (1) | |
328 | { | |
329 | if (strncmp (spec->path, "/", strlen ("/")) == 0) | |
330 | { | |
331 | /* cd /... */ | |
332 | while (current != NULL && hw_parent (current) != NULL) | |
333 | current = hw_parent (current); | |
334 | spec->path += strlen ("/"); | |
335 | } | |
336 | else if (strncmp (spec->path, "./", strlen ("./")) == 0) | |
337 | { | |
338 | /* cd ./... */ | |
339 | current = current; | |
340 | spec->path += strlen ("./"); | |
341 | } | |
342 | else if (strncmp (spec->path, "../", strlen ("../")) == 0) | |
343 | { | |
344 | /* cd ../... */ | |
345 | if (current != NULL && hw_parent (current) != NULL) | |
346 | current = hw_parent (current); | |
347 | spec->path += strlen ("../"); | |
348 | } | |
349 | else if (strcmp (spec->path, ".") == 0) | |
350 | { | |
351 | /* cd . */ | |
352 | current = current; | |
353 | spec->path += strlen ("."); | |
354 | } | |
355 | else if (strcmp (spec->path, "..") == 0) | |
356 | { | |
357 | /* cd .. */ | |
358 | if (current != NULL && hw_parent (current) != NULL) | |
359 | current = hw_parent (current); | |
360 | spec->path += strlen (".."); | |
361 | } | |
362 | else | |
363 | break; | |
364 | } | |
365 | ||
366 | /* now go through the path proper */ | |
367 | ||
368 | if (current == NULL) | |
369 | { | |
370 | split_device_name (spec); | |
371 | return NULL; | |
372 | } | |
373 | ||
374 | while (split_device_name (spec)) | |
375 | { | |
376 | struct hw *child; | |
377 | for (child = hw_child (current); | |
378 | child != NULL; child = hw_sibling (child)) | |
379 | { | |
380 | if (strcmp (spec->name, hw_name (child)) == 0) | |
381 | { | |
382 | if (spec->unit == NULL) | |
383 | break; | |
384 | else | |
385 | { | |
386 | hw_unit phys; | |
387 | hw_unit_decode (current, spec->unit, &phys); | |
388 | if (memcmp (&phys, hw_unit_address (child), | |
389 | sizeof (hw_unit)) == 0) | |
390 | break; | |
391 | } | |
392 | } | |
393 | } | |
394 | if (child == NULL) | |
395 | return current; /* search failed */ | |
396 | current = child; | |
397 | } | |
398 | ||
399 | return current; | |
400 | } | |
401 | ||
402 | ||
403 | static struct hw * | |
404 | split_fill_path (struct hw *current, | |
405 | const char *device_specifier, | |
406 | name_specifier *spec) | |
407 | { | |
408 | /* break it up */ | |
409 | if (!split_device_specifier (current, device_specifier, spec)) | |
410 | hw_abort (current, "error parsing %s\n", device_specifier); | |
411 | ||
412 | /* fill our tree with its contents */ | |
413 | current = split_find_device (current, spec); | |
414 | ||
415 | /* add any additional devices as needed */ | |
416 | if (spec->name != NULL) | |
417 | { | |
418 | do | |
419 | { | |
420 | if (current != NULL && !hw_finished_p (current)) | |
421 | hw_finish (current); | |
422 | current = hw_create (NULL, | |
423 | current, | |
424 | spec->family, | |
425 | spec->name, | |
426 | spec->unit, | |
427 | spec->args); | |
428 | } | |
429 | while (split_device_name (spec)); | |
430 | } | |
431 | ||
432 | return current; | |
433 | } | |
434 | ||
435 | \f | |
436 | /* <non-white-space> */ | |
437 | ||
438 | static const char * | |
439 | skip_token(const char *chp) | |
440 | { | |
441 | while (!isspace(*chp) && *chp != '\0') | |
442 | chp++; | |
443 | while (isspace(*chp) && *chp != '\0') | |
444 | chp++; | |
445 | return chp; | |
446 | } | |
447 | ||
448 | ||
449 | /* count the number of entries */ | |
450 | ||
451 | static int | |
452 | count_entries (struct hw *current, | |
453 | const char *property_name, | |
454 | const char *property_value, | |
455 | int modulo) | |
456 | { | |
457 | const char *chp = property_value; | |
458 | int nr_entries = 0; | |
459 | while (*chp != '\0') | |
460 | { | |
461 | nr_entries += 1; | |
462 | chp = skip_token (chp); | |
463 | } | |
464 | if ((nr_entries % modulo) != 0) | |
465 | { | |
466 | hw_abort (current, "incorrect number of entries for %s property %s, should be multiple of %d", | |
467 | property_name, property_value, modulo); | |
468 | } | |
469 | return nr_entries / modulo; | |
470 | } | |
471 | ||
472 | ||
473 | ||
474 | /* parse: <address> ::= <token> ; device dependant */ | |
475 | ||
476 | static const char * | |
477 | parse_address (struct hw *current, | |
478 | struct hw *bus, | |
479 | const char *chp, | |
480 | hw_unit *address) | |
481 | { | |
482 | if (hw_unit_decode (bus, chp, address) < 0) | |
483 | hw_abort (current, "invalid unit address in %s", chp); | |
484 | return skip_token (chp); | |
485 | } | |
486 | ||
487 | ||
488 | /* parse: <size> ::= <number> { "," <number> } ; */ | |
489 | ||
490 | static const char * | |
491 | parse_size (struct hw *current, | |
492 | struct hw *bus, | |
493 | const char *chp, | |
494 | hw_unit *size) | |
495 | { | |
496 | int i; | |
497 | int nr; | |
498 | const char *curr = chp; | |
499 | memset(size, 0, sizeof(*size)); | |
500 | /* parse the numeric list */ | |
501 | size->nr_cells = hw_unit_nr_size_cells (bus); | |
502 | nr = 0; | |
503 | while (1) | |
504 | { | |
505 | char *next; | |
506 | size->cells[nr] = strtoul (curr, &next, 0); | |
507 | if (curr == next) | |
508 | hw_abort (current, "Problem parsing <size> %s", chp); | |
509 | nr += 1; | |
510 | if (next[0] != ',') | |
511 | break; | |
512 | if (nr == size->nr_cells) | |
513 | hw_abort (current, "Too many values in <size> %s", chp); | |
514 | curr = next + 1; | |
515 | } | |
516 | ASSERT (nr > 0 && nr <= size->nr_cells); | |
517 | /* right align the numbers */ | |
518 | for (i = 1; i <= size->nr_cells; i++) | |
519 | { | |
520 | if (i <= nr) | |
521 | size->cells[size->nr_cells - i] = size->cells[nr - i]; | |
522 | else | |
523 | size->cells[size->nr_cells - i] = 0; | |
524 | } | |
525 | return skip_token (chp); | |
526 | } | |
527 | ||
528 | ||
529 | /* parse: <reg> ::= { <address> <size> } ; */ | |
530 | ||
531 | static void | |
532 | parse_reg_property (struct hw *current, | |
533 | const char *property_name, | |
534 | const char *property_value) | |
535 | { | |
536 | int nr_regs; | |
537 | int reg_nr; | |
538 | reg_property_spec *regs; | |
539 | const char *chp; | |
540 | ||
541 | /* determine the number of reg entries by counting tokens */ | |
542 | nr_regs = count_entries (current, property_name, property_value, 2); | |
543 | ||
544 | /* create working space */ | |
545 | regs = zalloc (nr_regs * sizeof (*regs)); | |
546 | ||
547 | /* fill it in */ | |
548 | chp = property_value; | |
549 | for (reg_nr = 0; reg_nr < nr_regs; reg_nr++) | |
550 | { | |
551 | chp = parse_address (current, hw_parent(current), | |
552 | chp, ®s[reg_nr].address); | |
553 | chp = parse_size (current, hw_parent(current), | |
554 | chp, ®s[reg_nr].size); | |
555 | } | |
556 | ||
557 | /* create it */ | |
558 | hw_add_reg_array_property (current, property_name, | |
559 | regs, nr_regs); | |
560 | ||
561 | zfree (regs); | |
562 | } | |
563 | ||
564 | ||
565 | /* { <child-address> <parent-address> <child-size> }* */ | |
566 | ||
567 | static void | |
568 | parse_ranges_property (struct hw *current, | |
569 | const char *property_name, | |
570 | const char *property_value) | |
571 | { | |
572 | int nr_ranges; | |
573 | int range_nr; | |
574 | range_property_spec *ranges; | |
575 | const char *chp; | |
576 | ||
577 | /* determine the number of ranges specified */ | |
578 | nr_ranges = count_entries (current, property_name, property_value, 3); | |
579 | ||
580 | /* create a property of that size */ | |
581 | ranges = zalloc (nr_ranges * sizeof(*ranges)); | |
582 | ||
583 | /* fill it in */ | |
584 | chp = property_value; | |
585 | for (range_nr = 0; range_nr < nr_ranges; range_nr++) | |
586 | { | |
587 | chp = parse_address (current, current, | |
588 | chp, &ranges[range_nr].child_address); | |
589 | chp = parse_address (current, hw_parent(current), | |
590 | chp, &ranges[range_nr].parent_address); | |
591 | chp = parse_size (current, current, | |
592 | chp, &ranges[range_nr].size); | |
593 | } | |
594 | ||
595 | /* create it */ | |
596 | hw_add_range_array_property (current, property_name, ranges, nr_ranges); | |
597 | ||
598 | zfree (ranges); | |
599 | } | |
600 | ||
601 | ||
602 | /* <integer> ... */ | |
603 | ||
604 | static void | |
605 | parse_integer_property (struct hw *current, | |
606 | const char *property_name, | |
607 | const char *property_value) | |
608 | { | |
609 | int nr_entries; | |
610 | unsigned_cell words[1024]; | |
611 | /* integer or integer array? */ | |
612 | nr_entries = 0; | |
613 | while (1) | |
614 | { | |
615 | char *end; | |
616 | words[nr_entries] = strtoul (property_value, &end, 0); | |
617 | if (property_value == end) | |
618 | break; | |
619 | nr_entries += 1; | |
620 | if (nr_entries * sizeof (words[0]) >= sizeof (words)) | |
621 | hw_abort (current, "buffer overflow"); | |
622 | property_value = end; | |
623 | } | |
624 | if (nr_entries == 0) | |
625 | hw_abort (current, "error parsing integer property %s (%s)", | |
626 | property_name, property_value); | |
627 | else if (nr_entries == 1) | |
628 | hw_add_integer_property (current, property_name, words[0]); | |
629 | else | |
630 | { | |
631 | int i; | |
632 | for (i = 0; i < nr_entries; i++) | |
633 | { | |
634 | H2BE (words[i]); | |
635 | } | |
636 | /* perhaphs integer array property is better */ | |
637 | hw_add_array_property (current, property_name, words, | |
638 | sizeof(words[0]) * nr_entries); | |
639 | } | |
640 | } | |
641 | ||
642 | ||
643 | /* <string> ... */ | |
644 | ||
645 | static void | |
646 | parse_string_property (struct hw *current, | |
647 | const char *property_name, | |
648 | const char *property_value) | |
649 | { | |
650 | char **strings; | |
651 | const char *chp; | |
652 | int nr_strings; | |
653 | int approx_nr_strings; | |
654 | ||
655 | /* get an estimate as to the number of strings by counting double | |
656 | quotes */ | |
657 | approx_nr_strings = 2; | |
658 | for (chp = property_value; *chp; chp++) | |
659 | { | |
660 | if (*chp == '"') | |
661 | approx_nr_strings++; | |
662 | } | |
663 | approx_nr_strings = (approx_nr_strings) / 2; | |
664 | ||
665 | /* create a string buffer for that many (plus a null) */ | |
666 | strings = (char**) zalloc ((approx_nr_strings + 1) * sizeof(char*)); | |
667 | ||
668 | /* now find all the strings */ | |
669 | chp = property_value; | |
670 | nr_strings = 0; | |
671 | while (1) | |
672 | { | |
673 | ||
674 | /* skip leading space */ | |
675 | while (*chp != '\0' && isspace (*chp)) | |
676 | chp += 1; | |
677 | if (*chp == '\0') | |
678 | break; | |
679 | ||
680 | /* copy it in */ | |
681 | if (*chp == '"') | |
682 | { | |
683 | /* a quoted string - watch for '\' et.al. */ | |
684 | /* estimate the size and allocate space for it */ | |
685 | int pos; | |
686 | chp++; | |
687 | pos = 0; | |
688 | while (chp[pos] != '\0' && chp[pos] != '"') | |
689 | { | |
690 | if (chp[pos] == '\\' && chp[pos+1] != '\0') | |
691 | pos += 2; | |
692 | else | |
693 | pos += 1; | |
694 | } | |
695 | strings[nr_strings] = zalloc (pos + 1); | |
696 | /* copy the string over */ | |
697 | pos = 0; | |
698 | while (*chp != '\0' && *chp != '"') | |
699 | { | |
700 | if (*chp == '\\' && *(chp+1) != '\0') { | |
701 | strings[nr_strings][pos] = *(chp+1); | |
702 | chp += 2; | |
703 | pos++; | |
704 | } | |
705 | else | |
706 | { | |
707 | strings[nr_strings][pos] = *chp; | |
708 | chp += 1; | |
709 | pos++; | |
710 | } | |
711 | } | |
712 | if (*chp != '\0') | |
713 | chp++; | |
714 | strings[nr_strings][pos] = '\0'; | |
715 | } | |
716 | else | |
717 | { | |
718 | /* copy over a single unquoted token */ | |
719 | int len = 0; | |
720 | while (chp[len] != '\0' && !isspace(chp[len])) | |
721 | len++; | |
722 | strings[nr_strings] = zalloc(len + 1); | |
723 | strncpy(strings[nr_strings], chp, len); | |
724 | strings[nr_strings][len] = '\0'; | |
725 | chp += len; | |
726 | } | |
727 | nr_strings++; | |
728 | if (nr_strings > approx_nr_strings) | |
729 | hw_abort (current, "String property %s badly formatted", | |
730 | property_name); | |
731 | } | |
732 | ASSERT (strings[nr_strings] == NULL); /* from zalloc */ | |
733 | ||
734 | /* install it */ | |
735 | if (nr_strings == 0) | |
736 | hw_add_string_property (current, property_name, ""); | |
737 | else if (nr_strings == 1) | |
738 | hw_add_string_property (current, property_name, strings[0]); | |
739 | else | |
740 | { | |
741 | const char **specs = (const char**) strings; /* stop a bogus error */ | |
742 | hw_add_string_array_property (current, property_name, | |
743 | specs, nr_strings); | |
744 | } | |
745 | ||
746 | /* flush the created string */ | |
747 | while (nr_strings > 0) | |
748 | { | |
749 | nr_strings--; | |
750 | zfree (strings[nr_strings]); | |
751 | } | |
752 | zfree(strings); | |
753 | } | |
754 | ||
755 | ||
756 | /* <path-to-ihandle-device> */ | |
757 | ||
758 | #if NOT_YET | |
759 | static void | |
760 | parse_ihandle_property (struct hw *current, | |
761 | const char *property, | |
762 | const char *value) | |
763 | { | |
764 | ihandle_runtime_property_spec ihandle; | |
765 | ||
766 | /* pass the full path */ | |
767 | ihandle.full_path = value; | |
768 | ||
769 | /* save this ready for the ihandle create */ | |
770 | hw_add_ihandle_runtime_property (current, property, | |
771 | &ihandle); | |
772 | } | |
773 | #endif | |
774 | ||
775 | ||
776 | struct hw * | |
777 | hw_tree_create (SIM_DESC sd, | |
778 | const char *family) | |
779 | { | |
780 | return hw_create (sd, NULL, family, family, NULL, NULL); | |
781 | } | |
782 | ||
783 | void | |
784 | hw_tree_delete (struct hw *me) | |
785 | { | |
786 | /* Need to allow devices to disapear under our feet */ | |
787 | while (hw_child (me) != NULL) | |
788 | { | |
789 | hw_tree_delete (hw_child (me)); | |
790 | } | |
791 | hw_delete (me); | |
792 | } | |
793 | ||
794 | ||
795 | struct hw * | |
796 | hw_tree_parse (struct hw *current, | |
797 | const char *fmt, | |
798 | ...) | |
799 | { | |
800 | va_list ap; | |
801 | va_start (ap, fmt); | |
802 | current = hw_tree_vparse (current, fmt, ap); | |
803 | va_end (ap); | |
804 | return current; | |
805 | } | |
806 | ||
807 | struct hw * | |
808 | hw_tree_vparse (struct hw *current, | |
809 | const char *fmt, | |
810 | va_list ap) | |
811 | { | |
812 | char device_specifier[1024]; | |
813 | name_specifier spec; | |
814 | ||
815 | /* format the path */ | |
816 | vsprintf (device_specifier, fmt, ap); | |
817 | if (strlen (device_specifier) >= sizeof (device_specifier)) | |
818 | hw_abort (NULL, "device_tree_add_deviced: buffer overflow\n"); | |
819 | ||
820 | /* construct the tree down to the final struct hw */ | |
821 | current = split_fill_path (current, device_specifier, &spec); | |
822 | ||
823 | /* is there an interrupt spec */ | |
824 | if (spec.property == NULL | |
825 | && spec.value != NULL) | |
826 | { | |
827 | char *op = split_value (&spec); | |
828 | switch (op[0]) | |
829 | { | |
830 | case '>': | |
831 | { | |
832 | char *my_port_name = split_value (&spec); | |
833 | int my_port; | |
834 | char *dest_port_name = split_value (&spec); | |
835 | int dest_port; | |
836 | name_specifier dest_spec; | |
837 | char *dest_hw_name = split_value (&spec); | |
838 | struct hw *dest; | |
839 | /* find my name */ | |
840 | if (!hw_finished_p (current)) | |
841 | hw_finish (current); | |
842 | my_port = hw_port_decode (current, my_port_name, output_port); | |
843 | /* find the dest device and port */ | |
844 | dest = split_fill_path (current, dest_hw_name, &dest_spec); | |
845 | if (!hw_finished_p (dest)) | |
846 | hw_finish (dest); | |
847 | dest_port = hw_port_decode (dest, dest_port_name, | |
848 | input_port); | |
849 | /* connect the two */ | |
850 | hw_port_attach (current, | |
851 | my_port, | |
852 | dest, | |
853 | dest_port, | |
854 | permenant_object); | |
855 | break; | |
856 | } | |
857 | default: | |
858 | hw_abort (current, "unreconised interrupt spec %s\n", spec.value); | |
859 | break; | |
860 | } | |
861 | } | |
862 | ||
863 | /* is there a property */ | |
864 | if (spec.property != NULL) | |
865 | { | |
866 | if (strcmp (spec.value, "true") == 0) | |
867 | hw_add_boolean_property (current, spec.property, 1); | |
868 | else if (strcmp (spec.value, "false") == 0) | |
869 | hw_add_boolean_property (current, spec.property, 0); | |
870 | else | |
871 | { | |
872 | const struct hw_property *property; | |
873 | switch (spec.value[0]) | |
874 | { | |
875 | #if NOT_YET | |
876 | case '*': | |
877 | { | |
878 | parse_ihandle_property (current, spec.property, spec.value + 1); | |
879 | break; | |
880 | } | |
881 | #endif | |
882 | case '[': | |
883 | { | |
884 | unsigned8 words[1024]; | |
885 | char *curr = spec.value + 1; | |
886 | int nr_words = 0; | |
887 | while (1) | |
888 | { | |
889 | char *next; | |
890 | words[nr_words] = H2BE_1 (strtoul (curr, &next, 0)); | |
891 | if (curr == next) | |
892 | break; | |
893 | curr = next; | |
894 | nr_words += 1; | |
895 | } | |
896 | hw_add_array_property (current, spec.property, | |
897 | words, sizeof(words[0]) * nr_words); | |
898 | break; | |
899 | } | |
900 | case '"': | |
901 | { | |
902 | parse_string_property (current, spec.property, spec.value); | |
903 | break; | |
904 | } | |
905 | case '!': | |
906 | { | |
907 | spec.value++; | |
908 | property = hw_tree_find_property (current, spec.value); | |
909 | if (property == NULL) | |
910 | hw_abort (current, "property %s not found\n", spec.value); | |
911 | hw_add_duplicate_property (current, | |
912 | spec.property, | |
913 | property); | |
914 | break; | |
915 | } | |
916 | default: | |
917 | { | |
918 | if (strcmp (spec.property, "reg") == 0 | |
919 | || strcmp (spec.property, "assigned-addresses") == 0 | |
920 | || strcmp (spec.property, "alternate-reg") == 0) | |
921 | { | |
922 | parse_reg_property (current, spec.property, spec.value); | |
923 | } | |
924 | else if (strcmp (spec.property, "ranges") == 0) | |
925 | { | |
926 | parse_ranges_property (current, spec.property, spec.value); | |
927 | } | |
928 | else if (isdigit(spec.value[0]) | |
929 | || (spec.value[0] == '-' && isdigit(spec.value[1])) | |
930 | || (spec.value[0] == '+' && isdigit(spec.value[1]))) | |
931 | { | |
932 | parse_integer_property(current, spec.property, spec.value); | |
933 | } | |
934 | else | |
935 | parse_string_property(current, spec.property, spec.value); | |
936 | break; | |
937 | } | |
938 | } | |
939 | } | |
940 | } | |
941 | return current; | |
942 | } | |
943 | ||
944 | ||
945 | static void | |
946 | finish_hw_tree (struct hw *me, | |
947 | void *data) | |
948 | { | |
949 | if (!hw_finished_p (me)) | |
950 | hw_finish (me); | |
951 | } | |
952 | ||
953 | void | |
954 | hw_tree_finish (struct hw *root) | |
955 | { | |
956 | hw_tree_traverse (root, finish_hw_tree, NULL, NULL); | |
957 | } | |
958 | ||
959 | ||
960 | ||
961 | void | |
962 | hw_tree_traverse (struct hw *root, | |
963 | hw_tree_traverse_function *prefix, | |
964 | hw_tree_traverse_function *postfix, | |
965 | void *data) | |
966 | { | |
967 | struct hw *child; | |
968 | if (prefix != NULL) | |
969 | prefix (root, data); | |
970 | for (child = hw_child (root); | |
971 | child != NULL; | |
972 | child = hw_sibling (child)) | |
973 | { | |
974 | hw_tree_traverse (child, prefix, postfix, data); | |
975 | } | |
976 | if (postfix != NULL) | |
977 | postfix (root, data); | |
978 | } | |
979 | ||
980 | ||
981 | \f | |
982 | struct printer { | |
983 | hw_tree_print_callback *print; | |
984 | void *file; | |
985 | }; | |
986 | ||
987 | static void | |
988 | print_address (struct hw *bus, | |
989 | const hw_unit *phys, | |
990 | struct printer *p) | |
991 | { | |
992 | char unit[32]; | |
993 | hw_unit_encode (bus, phys, unit, sizeof(unit)); | |
994 | p->print (p->file, " %s", unit); | |
995 | } | |
996 | ||
997 | static void | |
998 | print_size (struct hw *bus, | |
999 | const hw_unit *size, | |
1000 | struct printer *p) | |
1001 | { | |
1002 | int i; | |
1003 | for (i = 0; i < size->nr_cells; i++) | |
1004 | if (size->cells[i] != 0) | |
1005 | break; | |
1006 | if (i < size->nr_cells) { | |
1007 | p->print (p->file, " 0x%lx", (unsigned long) size->cells[i]); | |
1008 | i++; | |
1009 | for (; i < size->nr_cells; i++) | |
1010 | p->print (p->file, ",0x%lx", (unsigned long) size->cells[i]); | |
1011 | } | |
1012 | else | |
1013 | p->print (p->file, " 0"); | |
1014 | } | |
1015 | ||
1016 | static void | |
1017 | print_reg_property (struct hw *me, | |
1018 | const struct hw_property *property, | |
1019 | struct printer *p) | |
1020 | { | |
1021 | int reg_nr; | |
1022 | reg_property_spec reg; | |
1023 | for (reg_nr = 0; | |
1024 | hw_find_reg_array_property (me, property->name, reg_nr, ®); | |
1025 | reg_nr++) { | |
1026 | print_address (hw_parent (me), ®.address, p); | |
1027 | print_size (me, ®.size, p); | |
1028 | } | |
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, " \""); | |
1054 | while (*string != '\0') { | |
1055 | switch (*string) { | |
1056 | case '"': | |
1057 | p->print (p->file, "\\\""); | |
1058 | break; | |
1059 | case '\\': | |
1060 | p->print (p->file, "\\\\"); | |
1061 | break; | |
1062 | default: | |
1063 | p->print (p->file, "%c", *string); | |
1064 | break; | |
1065 | } | |
1066 | string++; | |
1067 | } | |
1068 | p->print (p->file, "\""); | |
1069 | } | |
1070 | ||
1071 | static void | |
1072 | print_string_array_property (struct hw *me, | |
1073 | const struct hw_property *property, | |
1074 | struct printer *p) | |
1075 | { | |
1076 | int nr; | |
1077 | string_property_spec string; | |
1078 | for (nr = 0; | |
1079 | hw_find_string_array_property (me, property->name, nr, &string); | |
1080 | nr++) | |
1081 | { | |
1082 | print_string (me, string, p); | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | static void | |
1087 | print_properties (struct hw *me, | |
1088 | struct printer *p) | |
1089 | { | |
1090 | const struct hw_property *property; | |
1091 | for (property = hw_find_property (me, NULL); | |
1092 | property != NULL; | |
1093 | property = hw_next_property (property)) | |
1094 | { | |
1095 | if (hw_parent (me) == NULL) | |
1096 | p->print (p->file, "/%s", property->name); | |
1097 | else | |
1098 | p->print (p->file, "%s/%s", hw_path (me), property->name); | |
1099 | if (property->original != NULL) | |
1100 | { | |
1101 | p->print (p->file, " !"); | |
1102 | p->print (p->file, "%s/%s", | |
1103 | hw_path (property->original->owner), | |
1104 | property->original->name); | |
1105 | } | |
1106 | else | |
1107 | { | |
1108 | switch (property->type) | |
1109 | { | |
1110 | case array_property: | |
1111 | { | |
1112 | if ((property->sizeof_array % sizeof (signed_cell)) == 0) | |
1113 | { | |
1114 | unsigned_cell *w = (unsigned_cell*) property->array; | |
1115 | int cell_nr; | |
1116 | for (cell_nr = 0; | |
1117 | cell_nr < (property->sizeof_array / sizeof (unsigned_cell)); | |
1118 | cell_nr++) | |
1119 | { | |
1120 | p->print (p->file, " 0x%lx", (unsigned long) BE2H_cell (w[cell_nr])); | |
1121 | } | |
1122 | } | |
1123 | else | |
1124 | { | |
1125 | unsigned8 *w = (unsigned8*)property->array; | |
1126 | p->print (p->file, " ["); | |
1127 | while ((char*)w - (char*)property->array < property->sizeof_array) { | |
1128 | p->print (p->file, " 0x%2x", BE2H_1 (*w)); | |
1129 | w++; | |
1130 | } | |
1131 | } | |
1132 | break; | |
1133 | } | |
1134 | case boolean_property: | |
1135 | { | |
1136 | int b = hw_find_boolean_property(me, property->name); | |
1137 | p->print (p->file, " %s", b ? "true" : "false"); | |
1138 | break; | |
1139 | } | |
1140 | #if NOT_YET | |
1141 | case ihandle_property: | |
1142 | { | |
1143 | if (property->array != NULL) | |
1144 | { | |
1145 | device_instance *instance = hw_find_ihandle_property (me, property->name); | |
1146 | p->print (p->file, " *%s", device_instance_path(instance)); | |
1147 | } | |
1148 | else | |
1149 | { | |
1150 | /* not yet initialized, ask the device for the path */ | |
1151 | ihandle_runtime_property_spec spec; | |
1152 | hw_find_ihandle_runtime_property (me, property->name, &spec); | |
1153 | p->print (p->file, " *%s", spec.full_path); | |
1154 | } | |
1155 | break; | |
1156 | } | |
1157 | #endif | |
1158 | case integer_property: | |
1159 | { | |
1160 | unsigned_word w = hw_find_integer_property (me, property->name); | |
1161 | p->print (p->file, " 0x%lx", (unsigned long)w); | |
1162 | break; | |
1163 | } | |
1164 | case range_array_property: | |
1165 | { | |
1166 | print_ranges_property (me, property, p); | |
1167 | break; | |
1168 | } | |
1169 | case reg_array_property: | |
1170 | { | |
1171 | print_reg_property (me, property, p); | |
1172 | break; | |
1173 | } | |
1174 | case string_property: | |
1175 | { | |
1176 | const char *s = hw_find_string_property (me, property->name); | |
1177 | print_string (me, s, p); | |
1178 | break; | |
1179 | } | |
1180 | case string_array_property: | |
1181 | { | |
1182 | print_string_array_property (me, property, p); | |
1183 | break; | |
1184 | } | |
1185 | } | |
1186 | } | |
1187 | p->print (p->file, "\n"); | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | static void | |
1192 | print_interrupts (struct hw *me, | |
1193 | int my_port, | |
1194 | struct hw *dest, | |
1195 | int dest_port, | |
1196 | void *data) | |
1197 | { | |
1198 | struct printer *p = data; | |
1199 | char src[32]; | |
1200 | char dst[32]; | |
1201 | hw_port_encode (me, my_port, src, sizeof(src), output_port); | |
1202 | hw_port_encode (dest, dest_port, dst, sizeof(dst), input_port); | |
1203 | p->print (p->file, | |
1204 | "%s > %s %s %s\n", | |
1205 | hw_path (me), | |
1206 | src, dst, | |
1207 | hw_path (dest)); | |
1208 | } | |
1209 | ||
1210 | static void | |
1211 | print_device (struct hw *me, | |
1212 | void *data) | |
1213 | { | |
1214 | struct printer *p = data; | |
1215 | p->print (p->file, "%s\n", hw_path (me)); | |
1216 | print_properties (me, p); | |
1217 | hw_port_traverse (me, print_interrupts, data); | |
1218 | } | |
1219 | ||
1220 | void | |
1221 | hw_tree_print (struct hw *root, | |
1222 | hw_tree_print_callback *print, | |
1223 | void *file) | |
1224 | { | |
1225 | struct printer p; | |
1226 | p.print = print; | |
1227 | p.file = file; | |
1228 | hw_tree_traverse (root, | |
1229 | print_device, NULL, | |
1230 | &p); | |
1231 | } | |
1232 | ||
1233 | ||
1234 | \f | |
1235 | #if NOT_YET | |
1236 | device_instance * | |
1237 | tree_instance(struct hw *root, | |
1238 | const char *device_specifier) | |
1239 | { | |
1240 | /* find the device node */ | |
1241 | struct hw *me; | |
1242 | name_specifier spec; | |
1243 | if (!split_device_specifier(root, device_specifier, &spec)) | |
1244 | return NULL; | |
1245 | me = split_find_device(root, &spec); | |
1246 | if (spec.name != NULL) | |
1247 | return NULL; | |
1248 | /* create the instance */ | |
1249 | return device_create_instance(me, device_specifier, spec.last_args); | |
1250 | } | |
1251 | #endif | |
1252 | ||
1253 | struct hw * | |
1254 | hw_tree_find_device (struct hw *root, | |
1255 | const char *path_to_device) | |
1256 | { | |
1257 | struct hw *node; | |
1258 | name_specifier spec; | |
1259 | ||
1260 | /* parse the path */ | |
1261 | split_device_specifier (root, path_to_device, &spec); | |
1262 | if (spec.value != NULL) | |
1263 | return NULL; /* something wierd */ | |
1264 | ||
1265 | /* now find it */ | |
1266 | node = split_find_device (root, &spec); | |
1267 | if (spec.name != NULL) | |
1268 | return NULL; /* not a leaf */ | |
1269 | ||
1270 | return node; | |
1271 | } | |
1272 | ||
1273 | ||
1274 | const struct hw_property * | |
1275 | hw_tree_find_property (struct hw *root, | |
1276 | const char *path_to_property) | |
1277 | { | |
1278 | name_specifier spec; | |
1279 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1280 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1281 | root = split_find_device (root, &spec); | |
1282 | if (spec.name != NULL) | |
1283 | return NULL; /* not a leaf */ | |
1284 | return hw_find_property (root, spec.property); | |
1285 | } | |
1286 | ||
1287 | int | |
1288 | hw_tree_find_boolean_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 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1297 | spec.name, path_to_property); | |
1298 | return hw_find_boolean_property (root, spec.property); | |
1299 | } | |
1300 | ||
1301 | signed_cell | |
1302 | hw_tree_find_integer_property (struct hw *root, | |
1303 | const char *path_to_property) | |
1304 | { | |
1305 | name_specifier spec; | |
1306 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1307 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1308 | root = split_find_device (root, &spec); | |
1309 | if (spec.name != NULL) | |
1310 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1311 | spec.name, path_to_property); | |
1312 | return hw_find_integer_property (root, spec.property); | |
1313 | } | |
1314 | ||
1315 | #if NOT_YET | |
1316 | device_instance * | |
1317 | hw_tree_find_ihandle_property (struct hw *root, | |
1318 | const char *path_to_property) | |
1319 | { | |
1320 | struct hw *root; | |
1321 | name_specifier spec; | |
1322 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1323 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1324 | root = split_find_device (root, &spec); | |
1325 | if (spec.name != NULL) | |
1326 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1327 | spec.name, path_to_property); | |
1328 | return hw_find_ihandle_property (root, spec.property); | |
1329 | } | |
1330 | #endif | |
1331 | ||
1332 | const char * | |
1333 | hw_tree_find_string_property (struct hw *root, | |
1334 | const char *path_to_property) | |
1335 | { | |
1336 | name_specifier spec; | |
1337 | if (!split_property_specifier (root, path_to_property, &spec)) | |
1338 | hw_abort (root, "Invalid property path %s", path_to_property); | |
1339 | root = split_find_device (root, &spec); | |
1340 | if (spec.name != NULL) | |
1341 | hw_abort (root, "device \"%s\" not found (property \"%s\")", | |
1342 | spec.name, path_to_property); | |
1343 | return hw_find_string_property (root, spec.property); | |
1344 | } |