util/sconfig/main.c

   1 /* sconfig, coreboot device tree compiler */
   2 /* SPDX-License-Identifier: GPL-2.0-only */
   3
   4 #include <assert.h>
   5 #include <ctype.h>
   6 #include <getopt.h>
   7 #include <inttypes.h>
   8 #include <libgen.h>
   9 /* stat.h needs to be included before commonlib/helpers.h to avoid errors.*/
  10 #include <sys/stat.h>
  11 #include <commonlib/helpers.h>
  12 #include <stdint.h>
  13 #include "sconfig.h"
  14 #include "sconfig.tab.h"
  15
  16 extern int linenum;
  17
  18 /*
  19  * Maintains list of all the unique chip structures for the board.
  20  * This is shared across base and override device trees since we need to
  21  * generate headers for all chips added by both the trees.
  22  */
  23 static struct chip chip_header;
  24
  25 typedef enum {
  26         UNSLASH,
  27         SPLIT_1ST,
  28         TO_LOWER,
  29         TO_UPPER,
  30 } translate_t;
  31
  32 /*
  33  * Mainboard is assumed to have a root device whose bus is the parent of all the
  34  * devices that are added by parsing the devicetree file. This device has a
  35  * mainboard chip instance associated with it.
  36  *
  37  *
  38  *
  39  *                 +------------------------+                +----------------------+
  40  *                 |       Root device      |                |  Mainboard           |
  41  *       +---------+     (base_root_dev)    +--------------->+  instance            +
  42  *       |         |                        | chip_instance  |  (mainboard_instance)|
  43  *       |         +------------------------+                |                      |
  44  *       |                      |                            +----------------------+
  45  *       |                      | bus                                  |
  46  *       | parent               v                                      |
  47  *       |            +-------------------+                            |
  48  *       |            |     Root bus      |                            |
  49  *       +----------->+  (base_root_bus)  |                            |
  50  *                    |                   |                            |
  51  *                    +-------------------+                            |
  52  *                              |                                      |
  53  *                              | children                             | chip
  54  *                              v                                      |
  55  *                              X                                      |
  56  *                        (new devices will                            |
  57  *                         be added here as                            |
  58  *                         children)                                   |
  59  *                                                                     |
  60  *                                                                     |
  61  *                                                                     |
  62  *                                                             +-------+----------+
  63  *                                                             |                  |
  64  *                                                             |  Mainboard chip  +----------->X (new chips will be
  65  *                                                             | (mainboard_chip) |               added here)
  66  *                                                             |                  |
  67  *                                                             +------------------+
  68  *
  69  *
  70  */
  71
  72 /* Root device of primary tree. */
  73 static struct device base_root_dev;
  74
  75 /* Root device of chipset tree. */
  76 static struct device chipset_root_dev;
  77
  78 /* Root device of override tree (if applicable). */
  79 static struct device override_root_dev;
  80
  81 static struct chip_instance mainboard_instance;
  82
  83 static struct bus base_root_bus = {
  84         .dev = &base_root_dev,
  85 };
  86
  87 static struct device base_root_dev = {
  88         .name = "dev_root",
  89         .chip_instance = &mainboard_instance,
  90         .path = " .type = DEVICE_PATH_ROOT ",
  91         .parent = &base_root_bus,
  92         .enabled = 1,
  93         .bus = &base_root_bus,
  94 };
  95
  96 static struct bus chipset_root_bus = {
  97         .dev = &chipset_root_dev,
  98 };
  99
 100 static struct device chipset_root_dev = {
 101         .name = "chipset_root",
 102         .chip_instance = &mainboard_instance,
 103         .path = " .type = DEVICE_PATH_ROOT ",
 104         .parent = &chipset_root_bus,
 105         .enabled = 1,
 106         .bus = &chipset_root_bus,
 107 };
 108
 109 static struct bus override_root_bus = {
 110         .dev = &override_root_dev,
 111 };
 112
 113 static struct device override_root_dev = {
 114         .name = "override_root",
 115         /*
 116          * Override tree root device points to the same mainboard chip instance
 117          * as the base tree root device. It should not cause any side-effects
 118          * since the mainboard chip instance pointer in override tree will just
 119          * be ignored.
 120          */
 121         .chip_instance = &mainboard_instance,
 122         .path = " .type = DEVICE_PATH_ROOT ",
 123         .parent = &override_root_bus,
 124         .enabled = 1,
 125         .bus = &override_root_bus,
 126 };
 127
 128 static struct chip mainboard_chip = {
 129         .name = "mainboard",
 130         .name_underscore = "mainboard",
 131         .instance = &mainboard_instance,
 132 };
 133
 134 static struct chip_instance mainboard_instance = {
 135         .id = 0,
 136         .chip = &mainboard_chip,
 137 };
 138
 139 /* This is the parent of all devices added by parsing the devicetree file. */
 140 struct bus *root_parent;
 141
 142 struct queue_entry {
 143         void *data;
 144         struct queue_entry *next;
 145         struct queue_entry *prev;
 146 };
 147
 148 /* Global list of all `struct device_operations` identifiers to declare. */
 149 static struct identifier *device_operations;
 150
 151 #define S_ALLOC(_s)     s_alloc(__func__, _s)
 152
 153 static void *s_alloc(const char *f, size_t s)
 154 {
 155         void *data = calloc(1, s);
 156         if (!data) {
 157                 fprintf(stderr, "%s: Failed to alloc mem!\n", f);
 158                 exit(1);
 159         }
 160         return data;
 161 }
 162
 163 static struct queue_entry *new_queue_entry(void *data)
 164 {
 165         struct queue_entry *e = S_ALLOC(sizeof(*e));
 166
 167         e->data = data;
 168         e->next = e->prev = e;
 169         return e;
 170 }
 171
 172 static void enqueue_tail(struct queue_entry **q_head, void *data)
 173 {
 174         struct queue_entry *tmp = new_queue_entry(data);
 175         struct queue_entry *q = *q_head;
 176
 177         if (!q) {
 178                 *q_head = tmp;
 179                 return;
 180         }
 181
 182         q->prev->next = tmp;
 183         tmp->prev = q->prev;
 184         q->prev = tmp;
 185         tmp->next = q;
 186 }
 187
 188 static void *dequeue_tail(struct queue_entry **q_head)
 189 {
 190         struct queue_entry *q = *q_head;
 191         struct queue_entry *tmp;
 192         void *data;
 193
 194         if (!q)
 195                 return NULL;
 196
 197         tmp = q->prev;
 198
 199         if (tmp == q)
 200                 *q_head = NULL;
 201         else {
 202                 tmp->prev->next = q;
 203                 q->prev = tmp->prev;
 204         }
 205
 206         data = tmp->data;
 207         free(tmp);
 208
 209         return data;
 210 }
 211
 212 static void *dequeue_head(struct queue_entry **q_head)
 213 {
 214         struct queue_entry *q = *q_head;
 215         struct queue_entry *tmp = q;
 216         void *data;
 217
 218         if (!q)
 219                 return NULL;
 220
 221         if (q->next == q)
 222                 *q_head = NULL;
 223         else {
 224                 q->next->prev = q->prev;
 225                 q->prev->next = q->next;
 226                 *q_head = q->next;
 227         }
 228
 229         data = tmp->data;
 230         free(tmp);
 231
 232         return data;
 233 }
 234
 235 static void *peek_queue_head(struct queue_entry *q_head)
 236 {
 237         if (!q_head)
 238                 return NULL;
 239
 240         return q_head->data;
 241 }
 242
 243 static struct queue_entry *chip_q_head;
 244
 245 void chip_enqueue_tail(void *data)
 246 {
 247         enqueue_tail(&chip_q_head, data);
 248 }
 249
 250 void *chip_dequeue_tail(void)
 251 {
 252         return dequeue_tail(&chip_q_head);
 253 }
 254
 255 int yywrap(void)
 256 {
 257         return 1;
 258 }
 259
 260 void yyerror(char const *str)
 261 {
 262         extern char *yytext;
 263         fprintf(stderr, "line %d: %s: %s\n", linenum + 1, yytext, str);
 264         exit(1);
 265 }
 266
 267 char *translate_name(const char *str, translate_t mode)
 268 {
 269         char *b, *c;
 270         b = c = strdup(str);
 271         while (c && *c) {
 272                 if ((mode == SPLIT_1ST) && (*c == '/')) {
 273                         *c = 0;
 274                         break;
 275                 }
 276                 if (*c == '/')
 277                         *c = '_';
 278                 if (*c == '-')
 279                         *c = '_';
 280                 if (mode == TO_UPPER)
 281                         *c = toupper(*c);
 282                 if (mode == TO_LOWER)
 283                         *c = tolower(*c);
 284                 c++;
 285         }
 286         return b;
 287 }
 288
 289 static struct chip *get_chip(char *path)
 290 {
 291         struct chip *h = &chip_header;
 292
 293         while (h->next) {
 294                 int result = strcmp(path, h->next->name);
 295                 if (result == 0)
 296                         return h->next;
 297
 298                 if (result < 0)
 299                         break;
 300
 301                 h = h->next;
 302         }
 303
 304         struct chip *new_chip = S_ALLOC(sizeof(struct chip));
 305         new_chip->next = h->next;
 306         h->next = new_chip;
 307
 308         new_chip->chiph_exists = 1;
 309         new_chip->name = path;
 310         new_chip->name_underscore = translate_name(path, UNSLASH);
 311
 312         struct stat st;
 313         char *chip_h = S_ALLOC(strlen(path) + 18);
 314         sprintf(chip_h, "src/%s", path);
 315         if ((stat(chip_h, &st) == -1) && (errno == ENOENT)) {
 316                 /* root_complex gets away without a separate directory, but
 317                  * exists on pretty much all AMD chipsets.
 318                  */
 319                 if (!strstr(path, "/root_complex")) {
 320                         fprintf(stderr, "ERROR: Chip component %s does not exist.\n",
 321                                 path);
 322                         exit(1);
 323                 }
 324         }
 325
 326         sprintf(chip_h, "src/%s/chip.h", path);
 327
 328         if ((stat(chip_h, &st) == -1) && (errno == ENOENT))
 329                 new_chip->chiph_exists = 0;
 330
 331         free(chip_h);
 332
 333         return new_chip;
 334 }
 335
 336 struct chip_instance *new_chip_instance(char *path)
 337 {
 338         struct chip *chip = get_chip(path);
 339         struct chip_instance *instance = S_ALLOC(sizeof(*instance));
 340
 341         instance->chip = chip;
 342         instance->next = chip->instance;
 343         chip->instance = instance;
 344
 345         return instance;
 346 }
 347
 348 /* List of fw_config fields added during parsing. */
 349 static struct fw_config_field *fw_config_fields;
 350
 351 static struct fw_config_option *find_fw_config_option(struct fw_config_field *field,
 352                                                       const char *name)
 353 {
 354         struct fw_config_option *option = field->options;
 355
 356         while (option && option->name) {
 357                 if (!strcmp(option->name, name))
 358                         return option;
 359                 option = option->next;
 360         }
 361         return NULL;
 362 }
 363
 364 static struct fw_config_field *find_fw_config_field(const char *name)
 365 {
 366         struct fw_config_field *field = fw_config_fields;
 367
 368         while (field && field->name) {
 369                 if (!strcmp(field->name, name))
 370                         return field;
 371                 field = field->next;
 372         }
 373         return NULL;
 374 }
 375
 376 struct fw_config_field *get_fw_config_field(const char *name)
 377 {
 378         struct fw_config_field *field = find_fw_config_field(name);
 379
 380         /* Fail if the field does not exist, new fields must be added with a mask. */
 381         if (!field) {
 382                 printf("ERROR: fw_config field not found: %s\n", name);
 383                 exit(1);
 384         }
 385         return field;
 386 }
 387
 388 static void append_fw_config_field(struct fw_config_field *add)
 389 {
 390         struct fw_config_field *field = fw_config_fields;
 391
 392         if (!fw_config_fields) {
 393                 fw_config_fields = add;
 394         } else {
 395                 while (field && field->next)
 396                         field = field->next;
 397                 field->next = add;
 398         }
 399 }
 400
 401 void append_fw_config_bits(struct fw_config_field_bits **bits,
 402                            unsigned int start_bit, unsigned int end_bit)
 403 {
 404         struct fw_config_field_bits *new_bits = S_ALLOC(sizeof(*new_bits));
 405         new_bits->start_bit = start_bit;
 406         new_bits->end_bit = end_bit;
 407         new_bits->next = NULL;
 408
 409         if (*bits == NULL) {
 410                 *bits = new_bits;
 411                 return;
 412         }
 413
 414         struct fw_config_field_bits *tmp = *bits;
 415         while (tmp->next)
 416                 tmp = tmp->next;
 417
 418         tmp->next = new_bits;
 419 }
 420
 421 int fw_config_masks_overlap(struct fw_config_field *existing,
 422                              unsigned int start_bit, unsigned int end_bit)
 423 {
 424         struct fw_config_field_bits *bits = existing->bits;
 425         while (bits) {
 426                 if (start_bit <= bits->end_bit && end_bit >= bits->start_bit) {
 427                         printf("ERROR: fw_config field [%u-%u] overlaps %s[%u-%u]\n",
 428                                start_bit, end_bit,
 429                                existing->name, bits->start_bit, bits->end_bit);
 430                         return 1;
 431                 }
 432                 bits = bits->next;
 433         }
 434
 435         return 0;
 436 }
 437
 438 struct fw_config_field *new_fw_config_field(const char *name, struct fw_config_field_bits *bits)
 439 {
 440         struct fw_config_field *field = find_fw_config_field(name);
 441         struct fw_config_field_bits *tmp;
 442
 443         /* Don't allow re-defining a field, only adding new fields. */
 444         if (field) {
 445                 printf("ERROR: fw_config field %s already exists\n", name);
 446                 exit(1);
 447         }
 448
 449         /* Check that each field is within 64 bits. */
 450         tmp = bits;
 451         while (tmp) {
 452                 if (tmp->start_bit > tmp->end_bit || tmp->end_bit > 63) {
 453                         printf("ERROR: fw_config field %s has invalid range %u-%u\n", name,
 454                                tmp->start_bit, tmp->end_bit);
 455                         exit(1);
 456                 }
 457
 458                 /* Check for overlap with an existing field. */
 459                 struct fw_config_field *existing = fw_config_fields;
 460                 while (existing) {
 461                         if (fw_config_masks_overlap(existing, tmp->start_bit, tmp->end_bit))
 462                                 exit(1);
 463                         existing = existing->next;
 464                 }
 465
 466                 tmp = tmp->next;
 467         }
 468
 469         field = S_ALLOC(sizeof(*field));
 470         field->name = name;
 471         field->bits = bits;
 472         append_fw_config_field(field);
 473
 474         return field;
 475 }
 476
 477 static void append_fw_config_option_to_field(struct fw_config_field *field,
 478                                              struct fw_config_option *add)
 479 {
 480         struct fw_config_option *option = field->options;
 481
 482         if (!option) {
 483                 field->options = add;
 484         } else {
 485                 while (option && option->next)
 486                         option = option->next;
 487                 option->next = add;
 488         }
 489 }
 490
 491 static uint64_t calc_max_field_value(const struct fw_config_field *field)
 492 {
 493         unsigned int bit_count = 0;
 494
 495         const struct fw_config_field_bits *bits = field->bits;
 496         while (bits) {
 497                 bit_count += 1 + bits->end_bit - bits->start_bit;
 498                 bits = bits->next;
 499         };
 500
 501         return (1ull << bit_count) - 1ull;
 502 }
 503
 504 void add_fw_config_option(struct fw_config_field *field, const char *name, uint64_t value)
 505 {
 506         struct fw_config_option *option;
 507
 508         /* Check that option value fits within field mask. */
 509         uint64_t field_max_value = calc_max_field_value(field);
 510         if (value > field_max_value) {
 511                 printf("ERROR: fw_config option %s:%s value %" PRIx64 " larger than field max %"
 512                        PRIx64 "\n",
 513                        field->name, name, value, field_max_value);
 514                 exit(1);
 515         }
 516
 517         /* Check for existing option with this name or value. */
 518         option = field->options;
 519         while (option) {
 520                 if (!strcmp(option->name, name)) {
 521                         printf("ERROR: fw_config option name %s:%s already exists\n",
 522                                field->name, name);
 523                         exit(1);
 524                 }
 525                 /* Compare values. */
 526                 if (value == option->value) {
 527                         printf("ERROR: fw_config option %s:%s[%" PRIx64 "] redefined as %s\n",
 528                                field->name, option->name, value, name);
 529                         exit(1);
 530                 }
 531                 option = option->next;
 532         }
 533
 534         option = S_ALLOC(sizeof(*option));
 535         option->name = name;
 536         option->value = value;
 537
 538         /* Add option to the current field. */
 539         append_fw_config_option_to_field(field, option);
 540 }
 541
 542 static void append_fw_config_probe_to_dev(struct device *dev, struct fw_config_probe *add)
 543 {
 544         struct fw_config_probe *probe = dev->probe;
 545
 546         if (!probe) {
 547                 dev->probe = add;
 548         } else {
 549                 while (probe && probe->next)
 550                         probe = probe->next;
 551                 probe->next = add;
 552         }
 553 }
 554
 555 static int check_probe_exists(struct fw_config_probe *probe, const char *field,
 556                               const char *option)
 557 {
 558         while (probe) {
 559                 if (!strcmp(probe->field, field) && !strcmp(probe->option, option)) {
 560                         return 1;
 561                 }
 562                 probe = probe->next;
 563         }
 564
 565         return 0;
 566 }
 567
 568 void add_fw_config_probe(struct bus *bus, const char *field, const char *option)
 569 {
 570         struct fw_config_probe *probe;
 571
 572         if (check_probe_exists(bus->dev->probe, field, option)) {
 573                 printf("ERROR: fw_config probe %s:%s already exists\n", field, option);
 574                 exit(1);
 575         }
 576
 577         probe = S_ALLOC(sizeof(*probe));
 578         probe->field = field;
 579         probe->option = option;
 580
 581         append_fw_config_probe_to_dev(bus->dev, probe);
 582 }
 583
 584 void probe_unprovisioned_fw_config(struct bus *bus)
 585 {
 586         bus->dev->enable_on_unprovisioned_fw_config = true;
 587 }
 588
 589 static uint64_t compute_fw_config_mask(const struct fw_config_field_bits *bits)
 590 {
 591         uint64_t mask = 0;
 592
 593         while (bits) {
 594                 /* Compute mask from start and end bit. */
 595                 uint64_t tmp = ((1ull << (1ull + bits->end_bit - bits->start_bit)) - 1ull);
 596                 tmp <<= bits->start_bit;
 597                 mask |= tmp;
 598                 bits = bits->next;
 599         }
 600
 601         return mask;
 602 }
 603
 604 static unsigned int bits_width(const struct fw_config_field_bits *bits)
 605 {
 606         return 1 + bits->end_bit - bits->start_bit;
 607 }
 608
 609 static uint64_t calc_option_value(const struct fw_config_field *field,
 610                                   const struct fw_config_option *option)
 611 {
 612         uint64_t value = 0;
 613         uint64_t original = option->value;
 614
 615         struct fw_config_field_bits *bits = field->bits;
 616         while (bits) {
 617                 const unsigned int width = bits_width(bits);
 618                 const uint64_t orig_mask = (1ull << width) - 1ull;
 619                 const uint64_t orig = (original & orig_mask);
 620                 value |= (orig << bits->start_bit);
 621
 622                 original >>= width;
 623                 bits = bits->next;
 624         }
 625
 626         return value;
 627 }
 628
 629 static void emit_fw_config(FILE *fil)
 630 {
 631         struct fw_config_field *field = fw_config_fields;
 632
 633         if (!field)
 634                 return;
 635
 636         while (field) {
 637                 struct fw_config_option *option = field->options;
 638                 uint64_t mask;
 639
 640                 fprintf(fil, "#define FW_CONFIG_FIELD_%s_NAME \"%s\"\n",
 641                         field->name, field->name);
 642
 643                 mask = compute_fw_config_mask(field->bits);
 644                 fprintf(fil, "#define FW_CONFIG_FIELD_%s_MASK 0x%" PRIx64 "\n",
 645                         field->name, mask);
 646
 647                 while (option) {
 648                         const uint64_t value = calc_option_value(field, option);
 649                         fprintf(fil, "#define FW_CONFIG_FIELD_%s_OPTION_%s_NAME \"%s\"\n",
 650                                 field->name, option->name, option->name);
 651                         fprintf(fil, "#define FW_CONFIG_FIELD_%s_OPTION_%s_VALUE 0x%"
 652                                 PRIx64 "\n", field->name, option->name, value);
 653                         option = option->next;
 654                 }
 655
 656                 field = field->next;
 657         }
 658
 659         fprintf(fil, "\n");
 660 }
 661
 662 static int emit_fw_config_probe(FILE *fil, struct device *dev)
 663 {
 664         struct fw_config_probe *probe = dev->probe;
 665
 666         fprintf(fil, "STORAGE struct fw_config %s_probe_list[] = {\n", dev->name);
 667
 668         while (probe) {
 669                 /* Find matching field. */
 670                 struct fw_config_field *field;
 671                 struct fw_config_option *option;
 672                 uint64_t mask, value;
 673
 674                 field = find_fw_config_field(probe->field);
 675                 if (!field) {
 676                         printf("ERROR: fw_config_probe field %s not found\n", probe->field);
 677                         return -1;
 678                 }
 679                 option = find_fw_config_option(field, probe->option);
 680                 if (!option) {
 681                         printf("ERROR: fw_config_probe field %s option %s not found\n",
 682                                probe->field, probe->option);
 683                         return -1;
 684                 }
 685
 686                 /* Fill out the probe structure with values from emit_fw_config(). */
 687                 fprintf(fil, "\t{\n");
 688                 fprintf(fil, "\t\t.field_name = FW_CONFIG_FIELD_%s_NAME,\n", probe->field);
 689                 fprintf(fil, "\t\t.option_name = FW_CONFIG_FIELD_%s_OPTION_%s_NAME,\n",
 690                         probe->field, probe->option);
 691                 fprintf(fil, "\t\t.mask = FW_CONFIG_FIELD_%s_MASK,\n", probe->field);
 692                 fprintf(fil, "\t\t.value = FW_CONFIG_FIELD_%s_OPTION_%s_VALUE,\n",
 693                         probe->field, probe->option);
 694                 fprintf(fil, "\t},\n");
 695
 696                 probe = probe->next;
 697         }
 698
 699         /* Add empty entry to mark end of list. */
 700         fprintf(fil, "\t{ }\n};\n");
 701         return 0;
 702 }
 703
 704 /* Enqueue identifier to list with head `*it`, if not already present. */
 705 void add_identifier(struct identifier **it, const char *id)
 706 {
 707         for (; *it != NULL; it = &(*it)->next) {
 708                 if (!strcmp((*it)->id, id))
 709                         return;
 710         }
 711
 712         *it = S_ALLOC(sizeof(**it));
 713         (*it)->id = id;
 714 }
 715
 716 void add_device_ops(struct bus *bus, char *ops_id)
 717 {
 718         if (bus->dev->ops_id) {
 719                 printf("ERROR: Device operations may only be specified once,\n"
 720                        "       found '%s', '%s'.\n", bus->dev->ops_id, ops_id);
 721                 exit(1);
 722         }
 723
 724         add_identifier(&device_operations, ops_id);
 725         bus->dev->ops_id = ops_id;
 726 }
 727
 728 /* Allocate a new bus for the provided device. */
 729 static void alloc_bus(struct device *dev)
 730 {
 731         struct bus *bus = S_ALLOC(sizeof(*bus));
 732
 733         bus->dev = dev;
 734         dev->bus = bus;
 735 }
 736
 737 /*
 738  * Allocate a new device under the given parent. This function allocates a new
 739  * device structure under the provided parent bus and allocates a bus structure
 740  * under the newly allocated device.
 741  */
 742 static struct device *alloc_dev(struct bus *parent)
 743 {
 744         struct device *dev = S_ALLOC(sizeof(*dev));
 745
 746         dev->parent = parent;
 747         dev->subsystem_vendor = -1;
 748         dev->subsystem_device = -1;
 749
 750         alloc_bus(dev);
 751
 752         return dev;
 753 }
 754
 755 /*
 756  * This function scans the children of given bus to see if any device matches
 757  * the new device that is requested.
 758  *
 759  * Returns pointer to the node if found, else NULL.
 760  */
 761 static struct device *get_dev(struct bus *parent, int path_a, int path_b,
 762                               int bustype, struct chip_instance *chip_instance)
 763 {
 764         struct device *child = parent->children;
 765
 766         while (child) {
 767                 if ((child->path_a == path_a) && (child->path_b == path_b) &&
 768                     (child->bustype == bustype) &&
 769                     (child->chip_instance == chip_instance))
 770                         return child;
 771
 772                 child = child->sibling;
 773         }
 774
 775         return NULL;
 776 }
 777
 778 /*
 779  * Add given node as child of the provided parent. If this is the first child of
 780  * the parent, update parent->children pointer as well.
 781  */
 782 static void set_new_child(struct bus *parent, struct device *child)
 783 {
 784         struct device *c = parent->children;
 785         if (c) {
 786                 while (c->sibling)
 787                         c = c->sibling;
 788                 c->sibling = child;
 789         } else
 790                 parent->children = child;
 791
 792         child->sibling = NULL;
 793         child->parent = parent;
 794 }
 795
 796 static const struct device *find_alias(const struct device *const parent,
 797                                        const char *const alias)
 798 {
 799         if (parent->alias && !strcmp(parent->alias, alias))
 800                 return parent;
 801
 802         const struct bus *bus = parent->bus;
 803         if (!bus)
 804                 return NULL;
 805
 806         const struct device *child;
 807         for (child = bus->children; child; child = child->sibling) {
 808                 const struct device *const ret = find_alias(child, alias);
 809                 if (ret)
 810                         return ret;
 811         }
 812
 813         return NULL;
 814 }
 815
 816 static struct device *new_device_with_path(struct bus *parent,
 817                                            struct chip_instance *chip_instance,
 818                                            const int bustype, int path_a, int path_b,
 819                                            char *alias, int status)
 820 {
 821         struct device *new_d;
 822
 823         /* We don't allow duplicate devices in devicetree. */
 824         new_d = get_dev(parent, path_a, path_b, bustype, chip_instance);
 825         if (new_d) {
 826                 printf("ERROR: Duplicate device! %s\n", new_d->name);
 827                 exit(1);
 828         }
 829
 830         new_d = alloc_dev(parent);
 831
 832         new_d->bustype = bustype;
 833
 834         new_d->path_a = path_a;
 835         new_d->path_b = path_b;
 836         new_d->alias = alias;
 837
 838         new_d->enabled = status & 0x01;
 839         new_d->hidden = (status >> 1) & 0x01;
 840         new_d->mandatory = (status >> 2) & 0x01;
 841         new_d->chip_instance = chip_instance;
 842
 843         set_new_child(parent, new_d);
 844
 845         switch (bustype) {
 846         case PCI:
 847                 new_d->path = ".type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x%x,%d)}}";
 848                 break;
 849
 850         case PNP:
 851                 new_d->path = ".type=DEVICE_PATH_PNP,{.pnp={ .port = 0x%x, .device = 0x%x }}";
 852                 break;
 853
 854         case I2C:
 855                 new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x, .mode_10bit = %d }}";
 856                 break;
 857
 858         case CPU_CLUSTER:
 859                 new_d->path = ".type=DEVICE_PATH_CPU_CLUSTER,{.cpu_cluster={ .cluster = 0x%x }}";
 860                 break;
 861
 862         case CPU:
 863                 new_d->path = ".type=DEVICE_PATH_CPU,{.cpu={ .id = 0x%x }}";
 864                 break;
 865
 866         case DOMAIN:
 867                 new_d->path = ".type=DEVICE_PATH_DOMAIN,{.domain={ .domain_id = 0x%x }}";
 868                 break;
 869
 870         case GENERIC:
 871                 new_d->path = ".type=DEVICE_PATH_GENERIC,{.generic={ .id = 0x%x, .subid = 0x%x }}";
 872                 break;
 873
 874         case SPI:
 875                 new_d->path = ".type=DEVICE_PATH_SPI,{.spi={ .cs = 0x%x }}";
 876                 break;
 877
 878         case USB:
 879                 new_d->path = ".type=DEVICE_PATH_USB,{.usb={ .port_type = %d, .port_id = %d }}";
 880                 break;
 881
 882         case MMIO:
 883                 new_d->path = ".type=DEVICE_PATH_MMIO,{.mmio={ .addr = 0x%x }}";
 884                 break;
 885
 886         case GPIO:
 887                 new_d->path = ".type=DEVICE_PATH_GPIO,{.gpio={ .id = 0x%x }}";
 888                 break;
 889
 890         case MDIO:
 891                 new_d->path = ".type=DEVICE_PATH_MDIO,{.mdio={ .addr = 0x%x }}";
 892                 break;
 893         }
 894
 895         return new_d;
 896 }
 897
 898 struct device *new_device_reference(struct bus *parent,
 899                                     struct chip_instance *chip_instance,
 900                                     const char *reference, int status)
 901 {
 902         const struct device *dev = find_alias(&base_root_dev, reference);
 903
 904         if (!dev) {
 905                 printf("ERROR: Unable to find device reference %s\n", reference);
 906                 exit(1);
 907         }
 908
 909         return new_device_with_path(parent, chip_instance, dev->bustype, dev->path_a,
 910                                     dev->path_b, NULL, status);
 911 }
 912
 913 struct device *new_device_raw(struct bus *parent,
 914                               struct chip_instance *chip_instance,
 915                               const int bustype, const char *devnum,
 916                               char *alias, int status)
 917 {
 918         char *tmp;
 919         int path_a;
 920         int path_b = 0;
 921
 922         /* Check for alias name conflicts. */
 923         if (alias && find_alias(root_parent->dev, alias)) {
 924                 printf("ERROR: Alias already exists: %s\n", alias);
 925                 exit(1);
 926         }
 927
 928         path_a = strtol(devnum, &tmp, 16);
 929         if (*tmp == '.') {
 930                 tmp++;
 931                 path_b = strtol(tmp, NULL, 16);
 932         }
 933
 934         return new_device_with_path(parent, chip_instance, bustype, path_a, path_b, alias,
 935                                     status);
 936 }
 937
 938 static void new_resource(struct device *dev, int type, int index, int base)
 939 {
 940         struct resource *r = S_ALLOC(sizeof(struct resource));
 941
 942         r->type = type;
 943         r->index = index;
 944         r->base = base;
 945         if (dev->res) {
 946                 struct resource *head = dev->res;
 947                 while (head->next)
 948                         head = head->next;
 949                 head->next = r;
 950         } else {
 951                 dev->res = r;
 952         }
 953 }
 954
 955 void add_resource(struct bus *bus, int type, int index, int base)
 956 {
 957         new_resource(bus->dev, type, index, base);
 958 }
 959
 960 static void add_reg(struct reg **const head, char *const name, char *const val)
 961 {
 962         struct reg *const r = S_ALLOC(sizeof(struct reg));
 963         struct reg *prev = NULL;
 964         struct reg *cur;
 965
 966         r->key = name;
 967         r->value = val;
 968
 969         for (cur = *head; cur != NULL; prev = cur, cur = cur->next) {
 970                 const int sort = strcmp(r->key, cur->key);
 971                 if (sort == 0) {
 972                         printf("ERROR: duplicate 'register' key '%s'.\n", r->key);
 973                         exit(1);
 974                 }
 975                 if (sort < 0)
 976                         break;
 977         }
 978         r->next = cur;
 979         if (prev)
 980                 prev->next = r;
 981         else
 982                 *head = r;
 983 }
 984
 985 void add_register(struct chip_instance *chip_instance, char *name, char *val)
 986 {
 987         add_reg(&chip_instance->reg, name, val);
 988 }
 989
 990 void add_reference(struct chip_instance *const chip_instance,
 991                    char *const name, char *const alias)
 992 {
 993         add_reg(&chip_instance->ref, name, alias);
 994 }
 995
 996 static void set_reference(struct chip_instance *const chip_instance,
 997                           char *const name, char *const alias)
 998 {
 999         const struct device *const dev = find_alias(&base_root_dev, alias);
1000         if (!dev) {
1001                 printf("ERROR: Cannot find device alias '%s'.\n", alias);
1002                 exit(1);
1003         }
1004
1005         char *const ref_name = S_ALLOC(strlen(dev->name) + 2);
1006         sprintf(ref_name, "&%s", dev->name);
1007         add_register(chip_instance, name, ref_name);
1008 }
1009
1010 static void update_references(FILE *file, FILE *head, struct device *dev,
1011                               struct device *next)
1012 {
1013         struct reg *ref;
1014
1015         for (ref = dev->chip_instance->ref; ref; ref = ref->next)
1016                 set_reference(dev->chip_instance, ref->key, ref->value);
1017 }
1018
1019 void add_slot_desc(struct bus *bus, char *type, char *length, char *designation,
1020                    char *data_width)
1021 {
1022         struct device *dev = bus->dev;
1023
1024         if (dev->bustype != PCI && dev->bustype != DOMAIN) {
1025                 printf("ERROR: 'slot_type' only allowed for PCI devices\n");
1026                 exit(1);
1027         }
1028
1029         dev->smbios_slot_type = type;
1030         dev->smbios_slot_length = length;
1031         dev->smbios_slot_data_width = data_width;
1032         dev->smbios_slot_designation = designation;
1033 }
1034
1035 void add_smbios_dev_info(struct bus *bus, long instance_id, const char *refdes)
1036 {
1037         struct device *dev = bus->dev;
1038
1039         if (dev->bustype != PCI && dev->bustype != DOMAIN) {
1040                 printf("ERROR: 'dev_info' only allowed for PCI devices\n");
1041                 exit(1);
1042         }
1043
1044         if (instance_id < 0 || instance_id > UINT8_MAX) {
1045                 printf("ERROR: SMBIOS dev info instance ID '%ld' out of range\n", instance_id);
1046                 exit(1);
1047         }
1048
1049         dev->smbios_instance_id_valid = 1;
1050         dev->smbios_instance_id = (unsigned int)instance_id;
1051         dev->smbios_refdes = refdes;
1052 }
1053
1054 void add_pci_subsystem_ids(struct bus *bus, int vendor, int device,
1055                            int inherit)
1056 {
1057         struct device *dev = bus->dev;
1058
1059         if (dev->bustype != PCI && dev->bustype != DOMAIN) {
1060                 printf("ERROR: 'subsystem' only allowed for PCI devices\n");
1061                 exit(1);
1062         }
1063
1064         dev->subsystem_vendor = vendor;
1065         dev->subsystem_device = device;
1066         dev->inherit_subsystem = inherit;
1067 }
1068
1069 static int dev_has_children(struct device *dev)
1070 {
1071         struct bus *bus = dev->bus;
1072
1073         if (bus && bus->children)
1074                 return 1;
1075
1076         return 0;
1077 }
1078
1079 static void pass0(FILE *fil, FILE *head, struct device *ptr, struct device *next)
1080 {
1081         static int dev_id;
1082
1083         if (ptr == &base_root_dev) {
1084                 fprintf(fil, "STORAGE struct bus %s_bus;\n",
1085                         ptr->name);
1086                 return;
1087         }
1088
1089         char *name;
1090
1091         if (ptr->alias) {
1092                 name = S_ALLOC(6 + strlen(ptr->alias));
1093                 sprintf(name, "_dev_%s", ptr->alias);
1094         } else {
1095                 name = S_ALLOC(11);
1096                 sprintf(name, "_dev_%d", dev_id++);
1097         }
1098
1099         ptr->name = name;
1100
1101         fprintf(fil, "STORAGE struct device %s;\n", ptr->name);
1102         if (ptr->res)
1103                 fprintf(fil, "STORAGE struct resource %s_res[];\n",
1104                         ptr->name);
1105         if (dev_has_children(ptr))
1106                 fprintf(fil, "STORAGE struct bus %s_bus;\n",
1107                         ptr->name);
1108
1109         if (next)
1110                 return;
1111
1112         fprintf(fil,
1113                 "DEVTREE_CONST struct device * DEVTREE_CONST last_dev = &%s;\n",
1114                 ptr->name);
1115 }
1116
1117 static void emit_smbios_data(FILE *fil, struct device *ptr)
1118 {
1119         fprintf(fil, "#if !DEVTREE_EARLY\n");
1120         fprintf(fil, "#if CONFIG(GENERATE_SMBIOS_TABLES)\n");
1121
1122         /* SMBIOS types start at 1, if zero it hasn't been set */
1123         if (ptr->smbios_slot_type)
1124                 fprintf(fil, "\t.smbios_slot_type = %s,\n",
1125                         ptr->smbios_slot_type);
1126         if (ptr->smbios_slot_data_width)
1127                 fprintf(fil, "\t.smbios_slot_data_width = %s,\n",
1128                         ptr->smbios_slot_data_width);
1129         if (ptr->smbios_slot_designation)
1130                 fprintf(fil, "\t.smbios_slot_designation = \"%s\",\n",
1131                         ptr->smbios_slot_designation);
1132         if (ptr->smbios_slot_length)
1133                 fprintf(fil, "\t.smbios_slot_length = %s,\n",
1134                         ptr->smbios_slot_length);
1135
1136         /* Fill in SMBIOS type41 fields */
1137         if (ptr->smbios_instance_id_valid) {
1138                 fprintf(fil, "\t.smbios_instance_id_valid = true,\n");
1139                 fprintf(fil, "\t.smbios_instance_id = %u,\n", ptr->smbios_instance_id);
1140                 if (ptr->smbios_refdes)
1141                         fprintf(fil, "\t.smbios_refdes = \"%s\",\n", ptr->smbios_refdes);
1142         }
1143
1144         fprintf(fil, "#endif\n");
1145         fprintf(fil, "#endif\n");
1146 }
1147
1148 static void emit_resources(FILE *fil, struct device *ptr)
1149 {
1150         if (ptr->res == NULL)
1151                 return;
1152
1153         int i = 1;
1154         fprintf(fil, "STORAGE struct resource %s_res[] = {\n", ptr->name);
1155         struct resource *r = ptr->res;
1156         while (r) {
1157                 fprintf(fil,
1158                         "\t\t{ .flags=IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_");
1159                 if (r->type == IRQ)
1160                         fprintf(fil, "IRQ");
1161                 if (r->type == DRQ)
1162                         fprintf(fil, "DRQ");
1163                 if (r->type == IO)
1164                         fprintf(fil, "IO");
1165                 fprintf(fil, ", .index=0x%x, .base=0x%x,", r->index,
1166                         r->base);
1167                 if (r->next)
1168                         fprintf(fil, ".next=&%s_res[%d]},\n", ptr->name,
1169                                 i++);
1170                 else
1171                         fprintf(fil, ".next=NULL },\n");
1172                 r = r->next;
1173         }
1174
1175         fprintf(fil, "\t };\n");
1176 }
1177
1178 static void emit_dev_bus(FILE *fil, struct device *ptr)
1179 {
1180         fprintf(fil, "STORAGE struct bus %s_bus = {\n",
1181                 ptr->name);
1182
1183         assert(ptr->bus && ptr->bus->children);
1184         struct bus *bus = ptr->bus;
1185
1186         fprintf(fil, "\t.dev = &%s,\n", bus->dev->name);
1187         fprintf(fil, "\t.children = &%s,\n", bus->children->name);
1188
1189         fprintf(fil, "};\n");
1190 }
1191
1192 static struct chip_instance *get_chip_instance(const struct device *dev)
1193 {
1194         struct chip_instance *chip_ins = dev->chip_instance;
1195         /*
1196          * If the chip instance of device has base_chip_instance pointer set, then follow that
1197          * to update the chip instance for current device.
1198          */
1199         if (chip_ins->base_chip_instance)
1200                 chip_ins = chip_ins->base_chip_instance;
1201
1202         return chip_ins;
1203 }
1204
1205 static void pass1(FILE *fil, FILE *head, struct device *ptr, struct device *next)
1206 {
1207         struct chip_instance *chip_ins = get_chip_instance(ptr);
1208         int has_children = dev_has_children(ptr);
1209
1210         /* Emit probe structures. */
1211         if (ptr->probe && (emit_fw_config_probe(fil, ptr) < 0)) {
1212                 if (head)
1213                         fclose(head);
1214                 fclose(fil);
1215                 exit(1);
1216         }
1217
1218         if (ptr == &base_root_dev)
1219                 fprintf(fil, "DEVTREE_CONST struct device %s = {\n", ptr->name);
1220         else
1221                 fprintf(fil, "STORAGE struct device %s = {\n", ptr->name);
1222
1223         fprintf(fil, "#if !DEVTREE_EARLY\n");
1224
1225         /*
1226          * ops field can be set in the devicetree. If unspecified, it is set
1227          * to default_dev_ops_root only for the root device, other devices
1228          * get it set by the driver at runtime.
1229          */
1230         if (ptr->ops_id)
1231                 fprintf(fil, "\t.ops = &%s,\n", ptr->ops_id);
1232         else if (ptr == &base_root_dev)
1233                 fprintf(fil, "\t.ops = &default_dev_ops_root,\n");
1234         else
1235                 fprintf(fil, "\t.ops = NULL,\n");
1236         fprintf(fil, "#endif\n");
1237         fprintf(fil, "\t.upstream = &%s_bus,\n", ptr->parent->dev->name);
1238         fprintf(fil, "\t.path = {");
1239         fprintf(fil, ptr->path, ptr->path_a, ptr->path_b);
1240         fprintf(fil, "},\n");
1241         fprintf(fil, "\t.enabled = %d,\n", ptr->enabled);
1242         fprintf(fil, "\t.hidden = %d,\n", ptr->hidden);
1243         fprintf(fil, "\t.mandatory = %d,\n", ptr->mandatory);
1244         fprintf(fil, "\t.on_mainboard = 1,\n");
1245         if (ptr->subsystem_vendor > 0)
1246                 fprintf(fil, "\t.subsystem_vendor = 0x%04x,\n",
1247                         ptr->subsystem_vendor);
1248
1249         if (ptr->subsystem_device > 0)
1250                 fprintf(fil, "\t.subsystem_device = 0x%04x,\n",
1251                         ptr->subsystem_device);
1252
1253         if (ptr->res) {
1254                 fprintf(fil, "\t.resource_list = &%s_res[0],\n",
1255                         ptr->name);
1256         }
1257         if (has_children)
1258                 fprintf(fil, "\t.downstream = &%s_bus,\n",
1259                         ptr->name);
1260         else
1261                 fprintf(fil, "\t.downstream = NULL,\n");
1262         if (ptr->sibling)
1263                 fprintf(fil, "\t.sibling = &%s,\n", ptr->sibling->name);
1264         else
1265                 fprintf(fil, "\t.sibling = NULL,\n");
1266         if (ptr->probe)
1267                 fprintf(fil, "\t.probe_list = %s_probe_list,\n", ptr->name);
1268         fprintf(fil, "\t.enable_on_unprovisioned_fw_config = %d,\n",
1269                 ptr->enable_on_unprovisioned_fw_config);
1270         fprintf(fil, "#if !DEVTREE_EARLY\n");
1271         fprintf(fil, "\t.chip_ops = &%s_ops,\n",
1272                 chip_ins->chip->name_underscore);
1273         if (chip_ins == &mainboard_instance)
1274                 fprintf(fil, "\t.name = mainboard_name,\n");
1275         fprintf(fil, "#endif\n");
1276         if (chip_ins->chip->chiph_exists)
1277                 fprintf(fil, "\t.chip_info = &%s_info_%d,\n",
1278                         chip_ins->chip->name_underscore, chip_ins->id);
1279         if (next)
1280                 fprintf(fil, "\t.next=&%s,\n", next->name);
1281
1282         emit_smbios_data(fil, ptr);
1283
1284         fprintf(fil, "};\n");
1285
1286         emit_resources(fil, ptr);
1287
1288         if (has_children)
1289                 emit_dev_bus(fil, ptr);
1290 }
1291
1292 static void expose_device_names(FILE *fil, FILE *head, struct device *ptr, struct device *next)
1293 {
1294         struct chip_instance *chip_ins = get_chip_instance(ptr);
1295
1296         /* Only devices on root bus here. */
1297         if (ptr->bustype == PCI && ptr->parent->dev->bustype == DOMAIN) {
1298                 if (ptr->alias) {
1299                         fprintf(head, "static const pci_devfn_t _sdev_%s = PCI_DEV(%d, %d, %d);\n",
1300                                 ptr->alias, ptr->parent->dev->path_a, ptr->path_a, ptr->path_b);
1301                 }
1302                 fprintf(head, "extern DEVTREE_CONST struct device *const __pci_%d_%02x_%d;\n",
1303                         ptr->parent->dev->path_a, ptr->path_a, ptr->path_b);
1304                 fprintf(fil, "DEVTREE_CONST struct device *const __pci_%d_%02x_%d = &%s;\n",
1305                         ptr->parent->dev->path_a, ptr->path_a, ptr->path_b, ptr->name);
1306
1307                 if (chip_ins->chip->chiph_exists) {
1308                         fprintf(head, "extern DEVTREE_CONST void *const __pci_%d_%02x_%d_config;\n",
1309                                 ptr->parent->dev->path_a, ptr->path_a, ptr->path_b);
1310                         fprintf(fil, "DEVTREE_CONST void *const __pci_%d_%02x_%d_config = &%s_info_%d;\n",
1311                                 ptr->parent->dev->path_a, ptr->path_a, ptr->path_b,
1312                                 chip_ins->chip->name_underscore, chip_ins->id);
1313                 }
1314         }
1315
1316         if (ptr->bustype == PNP) {
1317                 if (ptr->alias) {
1318                         fprintf(head, "static const pnp_devfn_t _sdev_%s = PNP_DEV(0x%02x, 0x%04x);\n",
1319                                 ptr->alias, ptr->path_a, ptr->path_b);
1320                 }
1321                 fprintf(head, "extern DEVTREE_CONST struct device *const __pnp_%04x_%02x;\n",
1322                         ptr->path_a, ptr->path_b);
1323                 fprintf(fil, "DEVTREE_CONST struct device *const __pnp_%04x_%02x = &%s;\n",
1324                         ptr->path_a, ptr->path_b, ptr->name);
1325         }
1326
1327         if (ptr->alias) {
1328                 fprintf(head, "extern DEVTREE_CONST struct device *const %s_ptr;\n", ptr->name);
1329                 fprintf(fil, "DEVTREE_CONST struct device *const %s_ptr = &%s;\n",
1330                         ptr->name, ptr->name);
1331         }
1332 }
1333
1334 static void add_siblings_to_queue(struct queue_entry **bfs_q_head,
1335                                   struct device *d)
1336 {
1337         while (d) {
1338                 enqueue_tail(bfs_q_head, d);
1339                 d = d->sibling;
1340         }
1341 }
1342
1343 static void add_children_to_queue(struct queue_entry **bfs_q_head,
1344                                   struct device *d)
1345 {
1346         struct bus *bus = d->bus;
1347
1348         if (dev_has_children(d))
1349                 add_siblings_to_queue(bfs_q_head, bus->children);
1350 }
1351
1352 static void walk_device_tree(FILE *fil, FILE *head, struct device *ptr,
1353                              void (*func)(FILE *, FILE *, struct device *,
1354                                           struct device *))
1355 {
1356         struct queue_entry *bfs_q_head = NULL;
1357
1358         enqueue_tail(&bfs_q_head, ptr);
1359
1360         while ((ptr = dequeue_head(&bfs_q_head))) {
1361                 add_children_to_queue(&bfs_q_head, ptr);
1362                 func(fil, head, ptr, peek_queue_head(bfs_q_head));
1363         }
1364 }
1365
1366 static void emit_chip_headers(FILE *fil, struct chip *chip)
1367 {
1368         struct chip *tmp = chip;
1369
1370         while (chip) {
1371                 if (chip->chiph_exists)
1372                         fprintf(fil, "#include \"%s/chip.h\"\n", chip->name);
1373                 chip = chip->next;
1374         }
1375         fprintf(fil, "\n#if !DEVTREE_EARLY\n");
1376         fprintf(fil,
1377                 "__attribute__((weak)) struct chip_operations mainboard_ops = {};\n");
1378
1379         chip = tmp;
1380         while (chip) {
1381                 /* A lot of cpus do not define chip_operations at all, and the ones
1382                    that do only initialise .name. */
1383                 if (strstr(chip->name_underscore, "cpu_") == chip->name_underscore) {
1384                         fprintf(fil,
1385                                 "__attribute__((weak)) struct chip_operations %s_ops = {};\n",
1386                                 chip->name_underscore);
1387                 } else {
1388                         fprintf(fil, "extern struct chip_operations %s_ops;\n",
1389                                 chip->name_underscore);
1390                 }
1391                 chip = chip->next;
1392         }
1393         fprintf(fil, "#endif\n");
1394 }
1395
1396 static void emit_chip_instance(FILE *fil, struct chip_instance *instance)
1397 {
1398         fprintf(fil, "STORAGE struct %s_config %s_info_%d = {",
1399                 instance->chip->name_underscore,
1400                 instance->chip->name_underscore,
1401                 instance->id);
1402
1403         if (instance->reg) {
1404                 fprintf(fil, "\n");
1405                 struct reg *r = instance->reg;
1406                 while (r) {
1407                         fprintf(fil, "\t.%s = %s,\n", r->key, r->value);
1408                         r = r->next;
1409                 }
1410         }
1411         fprintf(fil, "};\n\n");
1412 }
1413
1414 static void emit_chip_configs(FILE *fil)
1415 {
1416         struct chip *chip = chip_header.next;
1417         struct chip_instance *instance;
1418         int chip_id;
1419
1420         for (; chip; chip = chip->next) {
1421                 if (!chip->chiph_exists)
1422                         continue;
1423
1424                 chip_id = 1;
1425                 instance = chip->instance;
1426                 while (instance) {
1427                         /*
1428                          * Emit this chip instance only if there is no forwarding pointer to the
1429                          * base tree chip instance.
1430                          */
1431                         if (instance->base_chip_instance == NULL) {
1432                                 instance->id = chip_id++;
1433                                 emit_chip_instance(fil, instance);
1434                         }
1435                         instance = instance->next;
1436                 }
1437         }
1438 }
1439
1440 static void emit_identifiers(FILE *fil, const char *decl, const struct identifier *it)
1441 {
1442         for (; it != NULL; it = it->next)
1443                 fprintf(fil, "extern %s %s;\n", decl, it->id);
1444 }
1445
1446 static void inherit_subsystem_ids(FILE *file, FILE *head, struct device *dev,
1447                                   struct device *next)
1448 {
1449         struct device *p;
1450
1451         if (dev->subsystem_vendor != -1 && dev->subsystem_device != -1) {
1452                 /* user already gave us a subsystem vendor/device */
1453                 return;
1454         }
1455
1456         for (p = dev; p && p->parent->dev != p; p = p->parent->dev) {
1457
1458                 if (p->bustype != PCI && p->bustype != DOMAIN)
1459                         continue;
1460
1461                 if (p->inherit_subsystem) {
1462                         dev->subsystem_vendor = p->subsystem_vendor;
1463                         dev->subsystem_device = p->subsystem_device;
1464                         break;
1465                 }
1466         }
1467 }
1468
1469 static void parse_devicetree(const char *file, struct bus *parent)
1470 {
1471         FILE *filec = fopen(file, "r");
1472         if (!filec) {
1473                 perror(NULL);
1474                 exit(1);
1475         }
1476
1477         yyrestart(filec);
1478
1479         root_parent = parent;
1480         linenum = 0;
1481
1482         yyparse();
1483
1484         fclose(filec);
1485 }
1486
1487 static int device_probe_count(struct fw_config_probe *probe)
1488 {
1489         int count = 0;
1490         while (probe) {
1491                 probe = probe->next;
1492                 count++;
1493         }
1494
1495         return count;
1496 }
1497
1498 /*
1499  * When overriding devices, use the following rules:
1500  * 1. If probe count matches and:
1501  *    a. Entire probe list matches for both devices -> Same device, override.
1502  *    b. No probe entries match -> Different devices, do not override.
1503  *    c. Partial list matches -> Bad device tree entries, fail build.
1504  *
1505  * 2. If probe counts do not match and:
1506  *    a. No probe entries match -> Different devices, do not override.
1507  *    b. Partial list matches -> Bad device tree entries, fail build.
1508  */
1509 static int device_probes_match(struct device *a, struct device *b)
1510 {
1511         struct fw_config_probe *a_probe = a->probe;
1512         struct fw_config_probe *b_probe = b->probe;
1513         int a_probe_count = device_probe_count(a_probe);
1514         int b_probe_count = device_probe_count(b_probe);
1515         int match_count = 0;
1516
1517         while (a_probe) {
1518                 if (check_probe_exists(b_probe, a_probe->field, a_probe->option))
1519                         match_count++;
1520                 a_probe = a_probe->next;
1521         }
1522
1523         if ((a_probe_count == b_probe_count) && (a_probe_count == match_count))
1524                 return 1;
1525
1526         if (match_count) {
1527                 printf("ERROR: devices with overlapping probes: ");
1528                 printf(a->path, a->path_a, a->path_b);
1529                 printf(b->path, b->path_a, b->path_b);
1530                 printf("\n");
1531                 exit(1);
1532         }
1533
1534         return 0;
1535 }
1536
1537 /*
1538  * Match device nodes from base and override tree to see if they are the same
1539  * node.
1540  */
1541 static int device_match(struct device *a, struct device *b)
1542 {
1543         return ((a->path_a == b->path_a) &&
1544                 (a->path_b == b->path_b) &&
1545                 (a->bustype == b->bustype) &&
1546                 (a->chip_instance->chip ==
1547                  b->chip_instance->chip));
1548 }
1549
1550 /*
1551  * Match resource nodes from base and override tree to see if they are the same
1552  * node.
1553  */
1554 static int res_match(struct resource *a, struct resource *b)
1555 {
1556         return ((a->type == b->type) &&
1557                 (a->index == b->index));
1558 }
1559
1560 /*
1561  * Add resource to device. If resource is already present, then update its base
1562  * and index. If not, then add a new resource to the device.
1563  */
1564 static void update_resource(struct device *dev, struct resource *res)
1565 {
1566         struct resource *base_res = dev->res;
1567
1568         while (base_res) {
1569                 if (res_match(base_res, res)) {
1570                         base_res->base = res->base;
1571                         return;
1572                 }
1573                 base_res = base_res->next;
1574         }
1575
1576         new_resource(dev, res->type, res->index, res->base);
1577 }
1578
1579 /*
1580  * Add register to chip instance. If register is already present, then update
1581  * its value. If not, then add a new register to the chip instance.
1582  */
1583 static void update_register(struct reg **const head, struct reg *reg)
1584 {
1585         struct reg *base_reg = *head;
1586
1587         while (base_reg) {
1588                 if (!strcmp(base_reg->key, reg->key)) {
1589                         base_reg->value = reg->value;
1590                         return;
1591                 }
1592                 base_reg = base_reg->next;
1593         }
1594
1595         add_reg(head, reg->key, reg->value);
1596 }
1597
1598 static void override_devicetree(struct bus *base_parent,
1599                                 struct bus *override_parent);
1600
1601 /*
1602  * Update the base device properties using the properties of override device. In
1603  * addition to that, call override_devicetree for all the buses under the
1604  * override device.
1605  *
1606  * Override Rules:
1607  * +--------------------+--------------------------------------------+
1608  * |                    |                                            |
1609  * |struct device member|                 Rule                       |
1610  * |                    |                                            |
1611  * +-----------------------------------------------------------------+
1612  * |                    |                                            |
1613  * | id                 | Unchanged. This is used to generate device |
1614  * |                    | structure name in static.c. So, no need to |
1615  * |                    | override.                                  |
1616  * |                    |                                            |
1617  * +-----------------------------------------------------------------+
1618  * |                    |                                            |
1619  * | enabled            | Copy enabled state from override device.   |
1620  * |                    | This allows variants to override device    |
1621  * |                    | state.                                     |
1622  * |                    |                                            |
1623  * +-----------------------------------------------------------------+
1624  * |                    |                                            |
1625  * | subsystem_vendor   | Copy from override device only if any one  |
1626  * | subsystem_device   | of the ids is non-zero.                    |
1627  * |                    |                                            |
1628  * +-----------------------------------------------------------------+
1629  * |                    |                                            |
1630  * | inherit_subsystem  | Copy from override device only if it is    |
1631  * |                    | non-zero. This allows variant to only      |
1632  * |                    | enable inherit flag for a device.          |
1633  * |                    |                                            |
1634  * +-----------------------------------------------------------------+
1635  * |                    |                                            |
1636  * | path               | Unchanged since these are same for both    |
1637  * | path_a             | base and override device (Used for         |
1638  * | path_b             | matching devices).                         |
1639  * |                    |                                            |
1640  * +-----------------------------------------------------------------+
1641  * |                    |                                            |
1642  * | bustype            | Unchanged since this is same for both base |
1643  * |                    | and override device (User for matching     |
1644  * |                    | devices).                                  |
1645  * |                    |                                            |
1646  * +-----------------------------------------------------------------+
1647  * |                    |                                            |
1648  * | pci_irq_info       | Unchanged.                                 |
1649  * |                    |                                            |
1650  * +-----------------------------------------------------------------+
1651  * |                    |                                            |
1652  * | parent             | Unchanged. This is meaningful only within  |
1653  * | sibling            | the parse tree, hence not being copied.    |
1654  * |                    |                                            |
1655  * +-----------------------------------------------------------------+
1656  * |                    |                                            |
1657  * | res                | Each resource that is present in override  |
1658  * |                    | device is copied over to base device:      |
1659  * |                    | 1. If resource of same type and index is   |
1660  * |                    |    present in base device, then base of    |
1661  * |                    |    the resource is copied.                 |
1662  * |                    | 2. If not, then a new resource is allocated|
1663  * |                    |    under the base device using type, index |
1664  * |                    |    and base from override res.             |
1665  * |                    |                                            |
1666  * +-----------------------------------------------------------------+
1667  * |                    |                                            |
1668  * | ref                | Each reference that is present in override |
1669  * |                    | device is copied over to base device with  |
1670  * |                    | the same rules as registers.               |
1671  * |                    |                                            |
1672  * +-----------------------------------------------------------------+
1673  * |                    |                                            |
1674  * | alias              | Base device alias is copied to override.   |
1675  * |                    | Override devices cannot change/remove an   |
1676  * |                    | existing alias, but they can add an alias  |
1677  * |                    | if one does not exist.                     |
1678  * |                    |                                            |
1679  * +-----------------------------------------------------------------+
1680  * |                    |                                            |
1681  * | smbios_slot info   | Copy SMBIOS slot information from override.|
1682  * |                    | This allows variants to override PCI(e)    |
1683  * |                    | slot information in SMBIOS tables.         |
1684  * |                    |                                            |
1685  * +-----------------------------------------------------------------+
1686  * |                    |                                            |
1687  * | chip_instance      | Each register of chip_instance is copied   |
1688  * |                    | over from override device to base device:  |
1689  * |                    | 1. If register with same key is present in |
1690  * |                    |    base device, then value of the register |
1691  * |                    |    is copied.                              |
1692  * |                    | 2. If not, then a new register is allocated|
1693  * |                    |    under the base chip_instance using key  |
1694  * |                    |    and value from override register.       |
1695  * |                    |                                            |
1696  * +-----------------------------------------------------------------+
1697  * |                    |                                            |
1698  * | bus                | Recursively call override_devicetree on    |
1699  * |                    | each bus of override device. It is assumed |
1700  * |                    | that bus with id X under base device       |
1701  * |                    | to bus with id X under override device.    |
1702  * |                    |                                            |
1703  * +-----------------------------------------------------------------+
1704  */
1705 static void update_device(struct device *base_dev, struct device *override_dev)
1706 {
1707         /*
1708          * Copy the enabled state of override device to base device. This allows
1709          * override tree to enable or disable a particular device.
1710          */
1711         base_dev->enabled = override_dev->enabled;
1712
1713         /*
1714          * Copy the hidden state of override device to base device. This allows
1715          * override tree to hide or unhide a particular device.
1716          */
1717         base_dev->hidden = override_dev->hidden;
1718
1719         /*
1720          * Copy subsystem vendor and device ids from override device to base
1721          * device only if the ids are non-zero in override device. Else, honor
1722          * the values in base device.
1723          */
1724         if (override_dev->subsystem_vendor ||
1725             override_dev->subsystem_device) {
1726                 base_dev->subsystem_vendor = override_dev->subsystem_vendor;
1727                 base_dev->subsystem_device = override_dev->subsystem_device;
1728         }
1729
1730         /*
1731          * Copy value of inherity_subsystem from override device to base device
1732          * only if it is non-zero in override device. This allows override
1733          * tree to only enable inhert flag for a device.
1734          */
1735         if (override_dev->inherit_subsystem)
1736                 base_dev->inherit_subsystem = override_dev->inherit_subsystem;
1737
1738         /*
1739          * Copy resources of override device to base device.
1740          * 1. If resource is already present in base device, then index and base
1741          * of the resource will be copied over.
1742          * 2. If resource is not already present in base device, a new resource
1743          * will be allocated.
1744          */
1745         struct resource *res = override_dev->res;
1746         while (res) {
1747                 update_resource(base_dev, res);
1748                 res = res->next;
1749         }
1750
1751         /*
1752          * Copy registers of override chip instance to base chip instance.
1753          * 1. If register key is already present in base chip instance, then
1754          * value for the register is copied over.
1755          * 2. If register key is not already present in base chip instance, then
1756          * a new register will be allocated.
1757          */
1758         struct reg *reg = override_dev->chip_instance->reg;
1759         while (reg) {
1760                 update_register(&base_dev->chip_instance->reg, reg);
1761                 reg = reg->next;
1762         }
1763
1764         /* Copy references just as with registers. */
1765         reg = override_dev->chip_instance->ref;
1766         while (reg) {
1767                 update_register(&base_dev->chip_instance->ref, reg);
1768                 reg = reg->next;
1769         }
1770
1771         /* Check for alias name conflicts. */
1772         if (override_dev->alias && find_alias(&base_root_dev, override_dev->alias)) {
1773                 printf("ERROR: alias already exists: %s\n", override_dev->alias);
1774                 exit(1);
1775         }
1776
1777         /*
1778          * Copy alias from base device.
1779          *
1780          * Override devices cannot change/remove an existing alias,
1781          * but they can add an alias to a device if one does not exist yet.
1782          */
1783         if (base_dev->alias)
1784                 override_dev->alias = base_dev->alias;
1785         else
1786                 base_dev->alias = override_dev->alias;
1787
1788         /*
1789          * Use probe list from override device in place of base device, in order
1790          * to allow an override to remove a probe from the base device.
1791          */
1792         base_dev->probe = override_dev->probe;
1793         base_dev->enable_on_unprovisioned_fw_config =
1794                 override_dev->enable_on_unprovisioned_fw_config;
1795
1796         /* Copy SMBIOS slot information from base device */
1797         base_dev->smbios_slot_type = override_dev->smbios_slot_type;
1798         base_dev->smbios_slot_length = override_dev->smbios_slot_length;
1799         base_dev->smbios_slot_data_width = override_dev->smbios_slot_data_width;
1800         base_dev->smbios_slot_designation = override_dev->smbios_slot_designation;
1801
1802         /*
1803          * Update base_chip_instance member in chip instance of override tree to forward it to
1804          * the chip instance in base tree.
1805          */
1806         override_dev->chip_instance->base_chip_instance = get_chip_instance(base_dev);
1807
1808         /* Allow to override the ops of a device */
1809         if (override_dev->ops_id)
1810                 base_dev->ops_id = override_dev->ops_id;
1811
1812         /*
1813          * Now that the device properties are all copied over, look at each bus
1814          * of the override device and run override_devicetree in a recursive
1815          * manner. If base device has no bus but the override tree has, then a new
1816          * bus is allocated for it.
1817          */
1818         struct bus *override_bus = override_dev->bus;
1819         struct bus *base_bus = base_dev->bus;
1820
1821         /*
1822          * If we have more buses in override tree device, then allocate
1823          * a new bus for the base tree device as well.
1824          */
1825         if (!base_bus)
1826                 alloc_bus(base_dev);
1827
1828         override_devicetree(base_dev->bus, override_dev->bus);
1829 }
1830
1831 /*
1832  * Perform copy of device and properties from override parent to base parent.
1833  * This function walks through the override tree in a depth-first manner
1834  * performing following actions:
1835  * 1. If matching device is found in base tree, then copy the properties of
1836  * override device to base tree device. Call override_devicetree recursively on
1837  * the bus of override device.
1838  * 2. If matching device is not found in base tree, then set override tree
1839  * device as new child of base_parent and update the chip pointers in override
1840  * device subtree to ensure the nodes do not point to override tree chip
1841  * instance.
1842  */
1843 static void override_devicetree(struct bus *base_parent,
1844                                 struct bus *override_parent)
1845 {
1846         struct device *base_child;
1847         struct device *override_child = override_parent->children;
1848         struct device *next_child;
1849
1850         while (override_child) {
1851
1852                 /* Look for a matching device in base tree. */
1853                 for (base_child = base_parent->children;
1854                      base_child; base_child = base_child->sibling) {
1855                         if (!device_match(base_child, override_child))
1856                                 continue;
1857                         /* If base device has no probe statement, nothing else to compare. */
1858                         if (base_child->probe == NULL)
1859                                 break;
1860                         /*
1861                          * If base device has probe statements, ensure that all probe conditions
1862                          * match for base and override device.
1863                          */
1864                         if (device_probes_match(base_child, override_child))
1865                                 break;
1866                 }
1867
1868                 next_child = override_child->sibling;
1869
1870                 /*
1871                  * If matching device is found, copy properties of
1872                  * override_child to base_child.
1873                  */
1874                 if (base_child)
1875                         update_device(base_child, override_child);
1876                 else {
1877                         /*
1878                          * If matching device is not found, set override_child
1879                          * as a new child of base_parent.
1880                          */
1881                         set_new_child(base_parent, override_child);
1882                 }
1883
1884                 override_child = next_child;
1885         }
1886 }
1887
1888 static void parse_override_devicetree(const char *file, struct device *dev)
1889 {
1890         parse_devicetree(file, dev->bus);
1891
1892         if (!dev_has_children(dev)) {
1893                 fprintf(stderr, "ERROR: Override tree needs at least one device!\n");
1894                 exit(1);
1895         }
1896
1897         override_devicetree(&base_root_bus, dev->bus);
1898 }
1899
1900 static void generate_outputh(FILE *f, const char *fw_conf_header, const char *device_header)
1901 {
1902         fprintf(f, "#ifndef __STATIC_DEVICE_TREE_H\n");
1903         fprintf(f, "#define __STATIC_DEVICE_TREE_H\n\n");
1904
1905         fprintf(f, "#include <%s>\n", fw_conf_header);
1906         fprintf(f, "#include <%s>\n\n", device_header);
1907
1908         fprintf(f, "/* Returns pointer to config structure of root device (B:D:F = 0:00:0) */\n");
1909         fprintf(f, "#define config_of_soc() __pci_0_00_0_config\n\n");
1910
1911         fprintf(f, "/* Macro to generate `struct device *` name that points to a device with the given alias. */\n");
1912         fprintf(f, "#define DEV_PTR(_alias) \t_dev_##_alias##_ptr\n\n");
1913
1914         fprintf(f, "/* Macro to generate weak `struct device *` definition that points to a device with the given\n");
1915         fprintf(f, "   alias. */\n");
1916         fprintf(f, "#define WEAK_DEV_PTR(_alias)\t\t\t\\\n");
1917         fprintf(f, "\t__weak DEVTREE_CONST struct device *const DEV_PTR(_alias)\n");
1918
1919         fprintf(f, "\n#endif /* __STATIC_DEVICE_TREE_H */\n");
1920 }
1921
1922 static void generate_outputc(FILE *f, const char *static_header)
1923 {
1924         fprintf(f, "#include <boot/coreboot_tables.h>\n");
1925         fprintf(f, "#include <device/device.h>\n");
1926         fprintf(f, "#include <device/pci.h>\n");
1927         fprintf(f, "#include <fw_config.h>\n");
1928         fprintf(f, "#include <identity.h>\n");
1929         fprintf(f, "#include <%s>\n", static_header);
1930         emit_chip_headers(f, chip_header.next);
1931         emit_identifiers(f, "struct device_operations", device_operations);
1932         fprintf(f, "\n#define STORAGE static __maybe_unused DEVTREE_CONST\n\n");
1933
1934         walk_device_tree(NULL, NULL, &base_root_dev, inherit_subsystem_ids);
1935         fprintf(f, "\n/* pass 0 */\n");
1936         walk_device_tree(f, NULL, &base_root_dev, pass0);
1937         walk_device_tree(NULL, NULL, &base_root_dev, update_references);
1938         fprintf(f, "\n/* chip configs */\n");
1939         emit_chip_configs(f);
1940         fprintf(f, "\n/* pass 1 */\n");
1941         walk_device_tree(f, NULL, &base_root_dev, pass1);
1942 }
1943
1944 static void generate_outputd(FILE *gen, FILE *dev)
1945 {
1946         fprintf(dev, "#ifndef __STATIC_DEVICES_H\n");
1947         fprintf(dev, "#define __STATIC_DEVICES_H\n\n");
1948         fprintf(dev, "#include <device/pci_type.h>\n");
1949         fprintf(dev, "#include <device/pnp_type.h>\n");
1950         fprintf(dev, "#include <device/device.h>\n\n");
1951         fprintf(dev, "/* expose_device_names */\n");
1952         walk_device_tree(gen, dev, &base_root_dev, expose_device_names);
1953         fprintf(dev, "\n#endif /* __STATIC_DEVICE_NAMES_H */\n");
1954 }
1955
1956 static void generate_outputf(FILE *f)
1957 {
1958         fprintf(f, "#ifndef __STATIC_FW_CONFIG_H\n");
1959         fprintf(f, "#define __STATIC_FW_CONFIG_H\n\n");
1960         emit_fw_config(f);
1961         fprintf(f, "\n#endif /* __STATIC_FW_CONFIG_H */\n");
1962 }
1963
1964 static void usage(void)
1965 {
1966         printf("Usage: sconfig <options>\n");
1967         printf("  -c | --output_c          : Path to output static.c file (required)\n");
1968         printf("  -r | --output_h          : Path to header static.h file (required)\n");
1969         printf("  -d | --output_d          : Path to header static_devices.h file (required)\n");
1970         printf("  -f | --output_f          : Path to header static_fw_config.h file (required)\n");
1971         printf("  -m | --mainboard_devtree : Path to mainboard devicetree file (required)\n");
1972         printf("  -o | --override_devtree  : Path to override devicetree file (optional)\n");
1973         printf("  -p | --chipset_devtree   : Path to chipset/SOC devicetree file (optional)\n");
1974
1975         exit(1);
1976 }
1977
1978 int main(int argc, char **argv)
1979 {
1980         static const struct option long_options[] = {
1981                 { "mainboard_devtree", required_argument, NULL, 'm' },
1982                 { "override_devtree", required_argument, NULL, 'o' },
1983                 { "chipset_devtree", required_argument, NULL, 'p' },
1984                 { "output_c", required_argument, NULL, 'c' },
1985                 { "output_h", required_argument, NULL, 'r' },
1986                 { "output_d", required_argument, NULL, 'd' },
1987                 { "output_f", required_argument, NULL, 'f' },
1988                 { "help", no_argument, NULL, 'h' },
1989                 { }
1990         };
1991         const char *override_devtree = NULL;
1992         const char *base_devtree = NULL;
1993         const char *chipset_devtree = NULL;
1994         const char *outputc = NULL;
1995         const char *outputh = NULL;
1996         const char *outputd = NULL;
1997         const char *outputf = NULL;
1998         int opt, option_index;
1999
2000         while ((opt = getopt_long(argc, argv, "m:o:p:c:r:d:f:h", long_options,
2001                                   &option_index)) != EOF) {
2002                 switch (opt) {
2003                 case 'm':
2004                         base_devtree = optarg;
2005                         break;
2006                 case 'o':
2007                         override_devtree = optarg;
2008                         break;
2009                 case 'p':
2010                         chipset_devtree = optarg;
2011                         break;
2012                 case 'c':
2013                         outputc = optarg;
2014                         break;
2015                 case 'r':
2016                         outputh = optarg;
2017                         break;
2018                 case 'd':
2019                         outputd = optarg;
2020                         break;
2021                 case 'f':
2022                         outputf = optarg;
2023                         break;
2024                 case 'h':
2025                 default:
2026                         usage();
2027                 }
2028         }
2029
2030         if (!base_devtree || !outputc || !outputh || !outputd || !outputf)
2031                 usage();
2032
2033         if (chipset_devtree) {
2034                 /* Use the chipset devicetree as the base, then override
2035                    with the mainboard "base" devicetree. */
2036                 parse_devicetree(chipset_devtree, &base_root_bus);
2037                 parse_override_devicetree(base_devtree, &chipset_root_dev);
2038         } else {
2039                 parse_devicetree(base_devtree, &base_root_bus);
2040         }
2041
2042         if (override_devtree)
2043                 parse_override_devicetree(override_devtree, &override_root_dev);
2044
2045
2046         FILE *autogen = fopen(outputc, "w");
2047         if (!autogen) {
2048                 fprintf(stderr, "Could not open file '%s' for writing: ",
2049                         outputc);
2050                 perror(NULL);
2051                 exit(1);
2052         }
2053
2054         FILE *autohead = fopen(outputh, "w");
2055         if (!autohead) {
2056                 fprintf(stderr, "Could not open file '%s' for writing: ", outputh);
2057                 perror(NULL);
2058                 fclose(autogen);
2059                 exit(1);
2060         }
2061
2062         FILE *autodev = fopen(outputd, "w");
2063         if (!autodev) {
2064                 fprintf(stderr, "Could not open file '%s' for writing: ", outputd);
2065                 perror(NULL);
2066                 fclose(autogen);
2067                 fclose(autohead);
2068                 exit(1);
2069         }
2070
2071         FILE *autofwconf = fopen(outputf, "w");
2072         if (!autofwconf) {
2073                 fprintf(stderr, "Could not open file '%s' for writing: ", outputf);
2074                 perror(NULL);
2075                 fclose(autogen);
2076                 fclose(autohead);
2077                 fclose(autodev);
2078                 exit(1);
2079         }
2080
2081         char *f = strdup(outputf);
2082         assert(f);
2083         char *d = strdup(outputd);
2084         assert(d);
2085         char *h = strdup(outputh);
2086         assert(h);
2087
2088         const char *fw_conf_header = basename(f);
2089         const char *device_header = basename(d);
2090         const char *static_header = basename(h);
2091
2092         generate_outputh(autohead, fw_conf_header, device_header);
2093         generate_outputc(autogen, static_header);
2094         generate_outputd(autogen, autodev);
2095         generate_outputf(autofwconf);
2096
2097         fclose(autohead);
2098         fclose(autogen);
2099         fclose(autodev);
2100         fclose(autofwconf);
2101         free(f);
2102         free(d);
2103         free(h);
2104
2105         return 0;
2106 }