| 1 | /* This file is part of the program psim. |
| 2 | |
| 3 | Copyright (C) 1994-1996, 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 | |
| 22 | #ifndef _DEVICE_C_ |
| 23 | #define _DEVICE_C_ |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | |
| 27 | #include "device_table.h" |
| 28 | #include "cap.h" |
| 29 | |
| 30 | #include "events.h" |
| 31 | #include "psim.h" |
| 32 | |
| 33 | #ifdef HAVE_STDLIB_H |
| 34 | #include <stdlib.h> |
| 35 | #endif |
| 36 | |
| 37 | #ifdef HAVE_STRING_H |
| 38 | #include <string.h> |
| 39 | #else |
| 40 | #ifdef HAVE_STRINGS_H |
| 41 | #include <strings.h> |
| 42 | #endif |
| 43 | #endif |
| 44 | |
| 45 | #include <ctype.h> |
| 46 | |
| 47 | STATIC_INLINE_DEVICE (void) clean_device_properties(device *); |
| 48 | |
| 49 | /* property entries */ |
| 50 | |
| 51 | typedef struct _device_property_entry device_property_entry; |
| 52 | struct _device_property_entry { |
| 53 | device_property_entry *next; |
| 54 | device_property *value; |
| 55 | const void *init_array; |
| 56 | unsigned sizeof_init_array; |
| 57 | }; |
| 58 | |
| 59 | |
| 60 | /* Interrupt edges */ |
| 61 | |
| 62 | typedef struct _device_interrupt_edge device_interrupt_edge; |
| 63 | struct _device_interrupt_edge { |
| 64 | int my_port; |
| 65 | device *dest; |
| 66 | int dest_port; |
| 67 | device_interrupt_edge *next; |
| 68 | object_disposition disposition; |
| 69 | }; |
| 70 | |
| 71 | STATIC_INLINE_DEVICE\ |
| 72 | (void) |
| 73 | attach_device_interrupt_edge(device_interrupt_edge **list, |
| 74 | int my_port, |
| 75 | device *dest, |
| 76 | int dest_port, |
| 77 | object_disposition disposition) |
| 78 | { |
| 79 | device_interrupt_edge *new_edge = ZALLOC(device_interrupt_edge); |
| 80 | new_edge->my_port = my_port; |
| 81 | new_edge->dest = dest; |
| 82 | new_edge->dest_port = dest_port; |
| 83 | new_edge->next = *list; |
| 84 | new_edge->disposition = disposition; |
| 85 | *list = new_edge; |
| 86 | } |
| 87 | |
| 88 | STATIC_INLINE_DEVICE\ |
| 89 | (void) |
| 90 | detach_device_interrupt_edge(device *me, |
| 91 | device_interrupt_edge **list, |
| 92 | int my_port, |
| 93 | device *dest, |
| 94 | int dest_port) |
| 95 | { |
| 96 | while (*list != NULL) { |
| 97 | device_interrupt_edge *old_edge = *list; |
| 98 | if (old_edge->dest == dest |
| 99 | && old_edge->dest_port == dest_port |
| 100 | && old_edge->my_port == my_port) { |
| 101 | if (old_edge->disposition == permenant_object) |
| 102 | device_error(me, "attempt to delete permenant interrupt"); |
| 103 | *list = old_edge->next; |
| 104 | zfree(old_edge); |
| 105 | return; |
| 106 | } |
| 107 | } |
| 108 | device_error(me, "attempt to delete unattached interrupt"); |
| 109 | } |
| 110 | |
| 111 | STATIC_INLINE_DEVICE\ |
| 112 | (void) |
| 113 | clean_device_interrupt_edges(device_interrupt_edge **list) |
| 114 | { |
| 115 | while (*list != NULL) { |
| 116 | device_interrupt_edge *old_edge = *list; |
| 117 | switch (old_edge->disposition) { |
| 118 | case permenant_object: |
| 119 | list = &old_edge->next; |
| 120 | break; |
| 121 | case tempoary_object: |
| 122 | *list = old_edge->next; |
| 123 | zfree(old_edge); |
| 124 | break; |
| 125 | } |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | |
| 130 | /* A device */ |
| 131 | |
| 132 | struct _device { |
| 133 | |
| 134 | /* my name is ... */ |
| 135 | const char *name; |
| 136 | device_unit unit_address; |
| 137 | const char *path; |
| 138 | int nr_address_cells; |
| 139 | int nr_size_cells; |
| 140 | |
| 141 | /* device tree */ |
| 142 | device *parent; |
| 143 | device *children; |
| 144 | device *sibling; |
| 145 | |
| 146 | /* its template methods */ |
| 147 | void *data; /* device specific data */ |
| 148 | const device_callbacks *callback; |
| 149 | |
| 150 | /* device properties */ |
| 151 | device_property_entry *properties; |
| 152 | |
| 153 | /* interrupts */ |
| 154 | device_interrupt_edge *interrupt_destinations; |
| 155 | |
| 156 | /* any open instances of this device */ |
| 157 | device_instance *instances; |
| 158 | |
| 159 | /* the internal/external mappings and other global requirements */ |
| 160 | cap *ihandles; |
| 161 | cap *phandles; |
| 162 | psim *system; |
| 163 | |
| 164 | /* debugging */ |
| 165 | int trace; |
| 166 | }; |
| 167 | |
| 168 | |
| 169 | /* an instance of a device */ |
| 170 | struct _device_instance { |
| 171 | void *data; |
| 172 | char *args; |
| 173 | char *path; |
| 174 | const device_instance_callbacks *callback; |
| 175 | /* the root instance */ |
| 176 | device *owner; |
| 177 | device_instance *next; |
| 178 | /* interposed instance */ |
| 179 | device_instance *parent; |
| 180 | device_instance *child; |
| 181 | }; |
| 182 | |
| 183 | |
| 184 | \f |
| 185 | /* creation */ |
| 186 | |
| 187 | STATIC_INLINE_DEVICE\ |
| 188 | (const char *) |
| 189 | device_full_name(device *leaf, |
| 190 | char *buf, |
| 191 | unsigned sizeof_buf) |
| 192 | { |
| 193 | /* get a buffer */ |
| 194 | char full_name[1024]; |
| 195 | if (buf == (char*)0) { |
| 196 | buf = full_name; |
| 197 | sizeof_buf = sizeof(full_name); |
| 198 | } |
| 199 | |
| 200 | /* construct a name */ |
| 201 | if (leaf->parent == NULL) { |
| 202 | if (sizeof_buf < 1) |
| 203 | error("device_full_name: buffer overflow"); |
| 204 | *buf = '\0'; |
| 205 | } |
| 206 | else { |
| 207 | char unit[1024]; |
| 208 | device_full_name(leaf->parent, buf, sizeof_buf); |
| 209 | if (leaf->parent != NULL |
| 210 | && device_encode_unit(leaf->parent, |
| 211 | &leaf->unit_address, |
| 212 | unit+1, |
| 213 | sizeof(unit)-1) > 0) |
| 214 | unit[0] = '@'; |
| 215 | else |
| 216 | unit[0] = '\0'; |
| 217 | if (strlen(buf) + strlen("/") + strlen(leaf->name) + strlen(unit) |
| 218 | >= sizeof_buf) |
| 219 | error("device_full_name: buffer overflow"); |
| 220 | strcat(buf, "/"); |
| 221 | strcat(buf, leaf->name); |
| 222 | strcat (buf, unit); |
| 223 | } |
| 224 | |
| 225 | /* return it usefully */ |
| 226 | if (buf == full_name) |
| 227 | buf = (char *) strdup(full_name); |
| 228 | return buf; |
| 229 | } |
| 230 | |
| 231 | STATIC_INLINE_DEVICE\ |
| 232 | (device *) |
| 233 | device_create_from(const char *name, |
| 234 | const device_unit *unit_address, |
| 235 | void *data, |
| 236 | const device_callbacks *callbacks, |
| 237 | device *parent) |
| 238 | { |
| 239 | device *new_device = ZALLOC(device); |
| 240 | |
| 241 | /* insert it into the device tree */ |
| 242 | new_device->parent = parent; |
| 243 | new_device->children = NULL; |
| 244 | if (parent != NULL) { |
| 245 | device **sibling = &parent->children; |
| 246 | while ((*sibling) != NULL) |
| 247 | sibling = &(*sibling)->sibling; |
| 248 | *sibling = new_device; |
| 249 | } |
| 250 | |
| 251 | /* give it a name */ |
| 252 | new_device->name = (char *) strdup(name); |
| 253 | new_device->unit_address = *unit_address; |
| 254 | new_device->path = device_full_name(new_device, NULL, 0); |
| 255 | |
| 256 | /* its template */ |
| 257 | new_device->data = data; |
| 258 | new_device->callback = callbacks; |
| 259 | |
| 260 | /* its properties - already null */ |
| 261 | /* interrupts - already null */ |
| 262 | |
| 263 | /* mappings - if needed */ |
| 264 | if (parent == NULL) { |
| 265 | new_device->ihandles = cap_create(name); |
| 266 | new_device->phandles = cap_create(name); |
| 267 | } |
| 268 | else { |
| 269 | new_device->ihandles = device_root(parent)->ihandles; |
| 270 | new_device->phandles = device_root(parent)->phandles; |
| 271 | } |
| 272 | |
| 273 | cap_add(new_device->phandles, new_device); |
| 274 | return new_device; |
| 275 | } |
| 276 | |
| 277 | |
| 278 | |
| 279 | INLINE_DEVICE\ |
| 280 | (device *) |
| 281 | device_create(device *parent, |
| 282 | const char *base, |
| 283 | const char *name, |
| 284 | const char *unit_address, |
| 285 | const char *args) |
| 286 | { |
| 287 | const device_descriptor *const *table; |
| 288 | for (table = device_table; *table != NULL; table++) { |
| 289 | const device_descriptor *descr; |
| 290 | for (descr = *table; descr->name != NULL; descr++) { |
| 291 | if (strcmp(base, descr->name) == 0) { |
| 292 | device_unit address = { 0 }; |
| 293 | void *data = NULL; |
| 294 | if (parent != NULL) |
| 295 | if (device_decode_unit(parent, unit_address, &address) < 0) |
| 296 | device_error(parent, "invalid address %s for device %s", |
| 297 | unit_address, name); |
| 298 | if (descr->creator != NULL) |
| 299 | data = descr->creator(name, &address, args); |
| 300 | return device_create_from(name, &address, data, |
| 301 | descr->callbacks, parent); |
| 302 | } |
| 303 | } |
| 304 | } |
| 305 | device_error(parent, "attempt to attach unknown device %s", name); |
| 306 | return NULL; |
| 307 | } |
| 308 | |
| 309 | |
| 310 | |
| 311 | INLINE_DEVICE\ |
| 312 | (void) |
| 313 | device_usage(int verbose) |
| 314 | { |
| 315 | const device_descriptor *const *table; |
| 316 | if (verbose == 1) { |
| 317 | int pos = 0; |
| 318 | for (table = device_table; *table != NULL; table++) { |
| 319 | const device_descriptor *descr; |
| 320 | for (descr = *table; descr->name != NULL; descr++) { |
| 321 | pos += strlen(descr->name) + 2; |
| 322 | if (pos > 75) { |
| 323 | pos = strlen(descr->name) + 2; |
| 324 | printf_filtered("\n"); |
| 325 | } |
| 326 | printf_filtered(" %s", descr->name); |
| 327 | } |
| 328 | printf_filtered("\n"); |
| 329 | } |
| 330 | } |
| 331 | if (verbose > 1) { |
| 332 | for (table = device_table; *table != NULL; table++) { |
| 333 | const device_descriptor *descr; |
| 334 | for (descr = *table; descr->name != NULL; descr++) { |
| 335 | printf_filtered(" %s:\n", descr->name); |
| 336 | /* interrupt ports */ |
| 337 | if (descr->callbacks->interrupt.ports != NULL) { |
| 338 | const device_interrupt_port_descriptor *ports = |
| 339 | descr->callbacks->interrupt.ports; |
| 340 | printf_filtered(" interrupt ports:"); |
| 341 | while (ports->name != NULL) { |
| 342 | printf_filtered(" %s", ports->name); |
| 343 | ports++; |
| 344 | } |
| 345 | printf_filtered("\n"); |
| 346 | } |
| 347 | /* general info */ |
| 348 | if (descr->callbacks->usage != NULL) |
| 349 | descr->callbacks->usage(verbose); |
| 350 | } |
| 351 | } |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | |
| 356 | |
| 357 | |
| 358 | \f |
| 359 | /* Device node: */ |
| 360 | |
| 361 | INLINE_DEVICE\ |
| 362 | (device *) |
| 363 | device_parent(device *me) |
| 364 | { |
| 365 | return me->parent; |
| 366 | } |
| 367 | |
| 368 | INLINE_DEVICE\ |
| 369 | (device *) |
| 370 | device_root(device *me) |
| 371 | { |
| 372 | ASSERT(me != NULL); |
| 373 | while (me->parent != NULL) |
| 374 | me = me->parent; |
| 375 | return me; |
| 376 | } |
| 377 | |
| 378 | INLINE_DEVICE\ |
| 379 | (device *) |
| 380 | device_sibling(device *me) |
| 381 | { |
| 382 | return me->sibling; |
| 383 | } |
| 384 | |
| 385 | INLINE_DEVICE\ |
| 386 | (device *) |
| 387 | device_child(device *me) |
| 388 | { |
| 389 | return me->children; |
| 390 | } |
| 391 | |
| 392 | INLINE_DEVICE\ |
| 393 | (const char *) |
| 394 | device_name(device *me) |
| 395 | { |
| 396 | return me->name; |
| 397 | } |
| 398 | |
| 399 | INLINE_DEVICE\ |
| 400 | (const char *) |
| 401 | device_path(device *me) |
| 402 | { |
| 403 | return me->path; |
| 404 | } |
| 405 | |
| 406 | INLINE_DEVICE\ |
| 407 | (void *) |
| 408 | device_data(device *me) |
| 409 | { |
| 410 | return me->data; |
| 411 | } |
| 412 | |
| 413 | INLINE_DEVICE\ |
| 414 | (psim *) |
| 415 | device_system(device *me) |
| 416 | { |
| 417 | return me->system; |
| 418 | } |
| 419 | |
| 420 | INLINE_DEVICE\ |
| 421 | (const device_unit *) |
| 422 | device_unit_address(device *me) |
| 423 | { |
| 424 | return &me->unit_address; |
| 425 | } |
| 426 | |
| 427 | |
| 428 | INLINE_DEVICE\ |
| 429 | (int) |
| 430 | device_address_to_attach_address(device *me, |
| 431 | const device_unit *address, |
| 432 | int *attach_space, |
| 433 | unsigned_word *attach_address, |
| 434 | device *client) |
| 435 | { |
| 436 | if (me->callback->convert.address_to_attach_address == NULL) |
| 437 | device_error(me, "no convert.address_to_attach_address method"); |
| 438 | return me->callback->convert.address_to_attach_address(me, address, attach_space, attach_address, client); |
| 439 | } |
| 440 | |
| 441 | |
| 442 | INLINE_DEVICE\ |
| 443 | (int) |
| 444 | device_size_to_attach_size(device *me, |
| 445 | const device_unit *size, |
| 446 | unsigned *nr_bytes, |
| 447 | device *client) |
| 448 | { |
| 449 | if (me->callback->convert.size_to_attach_size == NULL) |
| 450 | device_error(me, "no convert.size_to_attach_size method"); |
| 451 | return me->callback->convert.size_to_attach_size(me, size, nr_bytes, client); |
| 452 | } |
| 453 | |
| 454 | |
| 455 | INLINE_DEVICE\ |
| 456 | (int) |
| 457 | device_decode_unit(device *bus, |
| 458 | const char *unit, |
| 459 | device_unit *address) |
| 460 | { |
| 461 | if (bus->callback->convert.decode_unit == NULL) |
| 462 | device_error(bus, "no convert.decode_unit method"); |
| 463 | return bus->callback->convert.decode_unit(bus, unit, address); |
| 464 | } |
| 465 | |
| 466 | |
| 467 | INLINE_DEVICE\ |
| 468 | (int) |
| 469 | device_encode_unit(device *bus, |
| 470 | const device_unit *unit_address, |
| 471 | char *buf, |
| 472 | int sizeof_buf) |
| 473 | { |
| 474 | if (bus->callback->convert.encode_unit == NULL) |
| 475 | device_error(bus, "no convert.encode_unit method"); |
| 476 | return bus->callback->convert.encode_unit(bus, unit_address, buf, sizeof_buf); |
| 477 | } |
| 478 | |
| 479 | INLINE_DEVICE\ |
| 480 | (unsigned) |
| 481 | device_nr_address_cells(device *me) |
| 482 | { |
| 483 | if (me->nr_address_cells == 0) { |
| 484 | if (device_find_property(me, "#address-cells") != NULL) |
| 485 | me->nr_address_cells = device_find_integer_property(me, "#address-cells"); |
| 486 | else |
| 487 | me->nr_address_cells = 2; |
| 488 | } |
| 489 | return me->nr_address_cells; |
| 490 | } |
| 491 | |
| 492 | INLINE_DEVICE\ |
| 493 | (unsigned) |
| 494 | device_nr_size_cells(device *me) |
| 495 | { |
| 496 | if (me->nr_size_cells == 0) { |
| 497 | if (device_find_property(me, "#size-cells") != NULL) |
| 498 | me->nr_size_cells = device_find_integer_property(me, "#size-cells"); |
| 499 | else |
| 500 | me->nr_size_cells = 1; |
| 501 | } |
| 502 | return me->nr_size_cells; |
| 503 | } |
| 504 | |
| 505 | |
| 506 | \f |
| 507 | /* device-instance: */ |
| 508 | |
| 509 | INLINE_DEVICE\ |
| 510 | (device_instance *) |
| 511 | device_create_instance_from(device *me, |
| 512 | device_instance *parent, |
| 513 | void *data, |
| 514 | const char *path, |
| 515 | const char *args, |
| 516 | const device_instance_callbacks *callbacks) |
| 517 | { |
| 518 | device_instance *instance = ZALLOC(device_instance); |
| 519 | if ((me == NULL) == (parent == NULL)) |
| 520 | device_error(me, "can't have both parent instance and parent device"); |
| 521 | /*instance->unit*/ |
| 522 | /* link this instance into the devices list */ |
| 523 | if (me != NULL) { |
| 524 | ASSERT(parent == NULL); |
| 525 | instance->owner = me; |
| 526 | instance->parent = NULL; |
| 527 | /* link this instance into the front of the devices instance list */ |
| 528 | instance->next = me->instances; |
| 529 | me->instances = instance; |
| 530 | } |
| 531 | if (parent != NULL) { |
| 532 | device_instance **previous; |
| 533 | ASSERT(parent->child == NULL); |
| 534 | parent->child = instance; |
| 535 | ASSERT(me == NULL); |
| 536 | instance->owner = parent->owner; |
| 537 | instance->parent = parent; |
| 538 | /* in the devices instance list replace the parent instance with |
| 539 | this one */ |
| 540 | instance->next = parent->next; |
| 541 | /* replace parent with this new node */ |
| 542 | previous = &instance->owner->instances; |
| 543 | while (*previous != parent) { |
| 544 | ASSERT(*previous != NULL); |
| 545 | previous = &(*previous)->next; |
| 546 | } |
| 547 | *previous = instance; |
| 548 | } |
| 549 | instance->data = data; |
| 550 | instance->args = (args == NULL ? NULL : (char *) strdup(args)); |
| 551 | instance->path = (path == NULL ? NULL : (char *) strdup(path)); |
| 552 | instance->callback = callbacks; |
| 553 | cap_add(instance->owner->ihandles, instance); |
| 554 | return instance; |
| 555 | } |
| 556 | |
| 557 | |
| 558 | INLINE_DEVICE\ |
| 559 | (device_instance *) |
| 560 | device_create_instance(device *me, |
| 561 | const char *path, |
| 562 | const char *args) |
| 563 | { |
| 564 | /* create the instance */ |
| 565 | if (me->callback->instance_create == NULL) |
| 566 | device_error(me, "no instance_create method"); |
| 567 | return me->callback->instance_create(me, path, args); |
| 568 | } |
| 569 | |
| 570 | |
| 571 | STATIC_INLINE_DEVICE\ |
| 572 | (void) |
| 573 | clean_device_instances(device *me) |
| 574 | { |
| 575 | device_instance **instance = &me->instances; |
| 576 | while (*instance != NULL) { |
| 577 | device_instance *old_instance = *instance; |
| 578 | device_instance_delete(old_instance); |
| 579 | instance = &me->instances; |
| 580 | } |
| 581 | } |
| 582 | |
| 583 | |
| 584 | INLINE_DEVICE\ |
| 585 | (void) |
| 586 | device_instance_delete(device_instance *instance) |
| 587 | { |
| 588 | device *me = instance->owner; |
| 589 | if (instance->callback->delete == NULL) |
| 590 | device_error(me, "no delete method"); |
| 591 | instance->callback->delete(instance); |
| 592 | if (instance->args != NULL) |
| 593 | zfree(instance->args); |
| 594 | if (instance->path != NULL) |
| 595 | zfree(instance->path); |
| 596 | if (instance->child == NULL) { |
| 597 | /* only remove leaf nodes */ |
| 598 | device_instance **curr = &me->instances; |
| 599 | while (*curr != instance) { |
| 600 | ASSERT(*curr != NULL); |
| 601 | curr = &(*curr)->next; |
| 602 | } |
| 603 | *curr = instance->next; |
| 604 | } |
| 605 | else { |
| 606 | /* check it isn't in the instance list */ |
| 607 | device_instance *curr = me->instances; |
| 608 | while (curr != NULL) { |
| 609 | ASSERT(curr != instance); |
| 610 | curr = curr->next; |
| 611 | } |
| 612 | /* unlink the child */ |
| 613 | ASSERT(instance->child->parent == instance); |
| 614 | instance->child->parent = NULL; |
| 615 | } |
| 616 | cap_remove(me->ihandles, instance); |
| 617 | zfree(instance); |
| 618 | } |
| 619 | |
| 620 | INLINE_DEVICE\ |
| 621 | (int) |
| 622 | device_instance_read(device_instance *instance, |
| 623 | void *addr, |
| 624 | unsigned_word len) |
| 625 | { |
| 626 | device *me = instance->owner; |
| 627 | if (instance->callback->read == NULL) |
| 628 | device_error(me, "no read method"); |
| 629 | return instance->callback->read(instance, addr, len); |
| 630 | } |
| 631 | |
| 632 | INLINE_DEVICE\ |
| 633 | (int) |
| 634 | device_instance_write(device_instance *instance, |
| 635 | const void *addr, |
| 636 | unsigned_word len) |
| 637 | { |
| 638 | device *me = instance->owner; |
| 639 | if (instance->callback->write == NULL) |
| 640 | device_error(me, "no write method"); |
| 641 | return instance->callback->write(instance, addr, len); |
| 642 | } |
| 643 | |
| 644 | INLINE_DEVICE\ |
| 645 | (int) |
| 646 | device_instance_seek(device_instance *instance, |
| 647 | unsigned_word pos_hi, |
| 648 | unsigned_word pos_lo) |
| 649 | { |
| 650 | device *me = instance->owner; |
| 651 | if (instance->callback->seek == NULL) |
| 652 | device_error(me, "no seek method"); |
| 653 | return instance->callback->seek(instance, pos_hi, pos_lo); |
| 654 | } |
| 655 | |
| 656 | INLINE_DEVICE\ |
| 657 | (int) |
| 658 | device_instance_call_method(device_instance *instance, |
| 659 | const char *method_name, |
| 660 | int n_stack_args, |
| 661 | unsigned_cell stack_args[/*n_stack_args*/], |
| 662 | int n_stack_returns, |
| 663 | unsigned_cell stack_returns[/*n_stack_args*/]) |
| 664 | { |
| 665 | device *me = instance->owner; |
| 666 | const device_instance_methods *method = instance->callback->methods; |
| 667 | if (method == NULL) { |
| 668 | device_error(me, "no methods (want %s)", method_name); |
| 669 | } |
| 670 | while (method->name != NULL) { |
| 671 | if (strcmp(method->name, method_name) == 0) { |
| 672 | return method->method(instance, |
| 673 | n_stack_args, stack_args, |
| 674 | n_stack_returns, stack_returns); |
| 675 | } |
| 676 | method++; |
| 677 | } |
| 678 | device_error(me, "no %s method", method_name); |
| 679 | return 0; |
| 680 | } |
| 681 | |
| 682 | |
| 683 | INLINE_DEVICE\ |
| 684 | (device *) |
| 685 | device_instance_device(device_instance *instance) |
| 686 | { |
| 687 | return instance->owner; |
| 688 | } |
| 689 | |
| 690 | INLINE_DEVICE\ |
| 691 | (const char *) |
| 692 | device_instance_path(device_instance *instance) |
| 693 | { |
| 694 | return instance->path; |
| 695 | } |
| 696 | |
| 697 | INLINE_DEVICE\ |
| 698 | (void *) |
| 699 | device_instance_data(device_instance *instance) |
| 700 | { |
| 701 | return instance->data; |
| 702 | } |
| 703 | |
| 704 | |
| 705 | \f |
| 706 | /* Device Properties: */ |
| 707 | |
| 708 | STATIC_INLINE_DEVICE\ |
| 709 | (device_property_entry *) |
| 710 | find_property_entry(device *me, |
| 711 | const char *property) |
| 712 | { |
| 713 | device_property_entry *entry; |
| 714 | ASSERT(property != NULL); |
| 715 | entry = me->properties; |
| 716 | while (entry != NULL) { |
| 717 | if (strcmp(entry->value->name, property) == 0) |
| 718 | return entry; |
| 719 | entry = entry->next; |
| 720 | } |
| 721 | return NULL; |
| 722 | } |
| 723 | |
| 724 | STATIC_INLINE_DEVICE\ |
| 725 | (void) |
| 726 | device_add_property(device *me, |
| 727 | const char *property, |
| 728 | device_property_type type, |
| 729 | const void *init_array, |
| 730 | unsigned sizeof_init_array, |
| 731 | const void *array, |
| 732 | unsigned sizeof_array, |
| 733 | const device_property *original, |
| 734 | object_disposition disposition) |
| 735 | { |
| 736 | device_property_entry *new_entry = NULL; |
| 737 | device_property *new_value = NULL; |
| 738 | |
| 739 | /* find the list end */ |
| 740 | device_property_entry **insertion_point = &me->properties; |
| 741 | while (*insertion_point != NULL) { |
| 742 | if (strcmp((*insertion_point)->value->name, property) == 0) |
| 743 | return; |
| 744 | insertion_point = &(*insertion_point)->next; |
| 745 | } |
| 746 | |
| 747 | /* create a new value */ |
| 748 | new_value = ZALLOC(device_property); |
| 749 | new_value->name = (char *) strdup(property); |
| 750 | new_value->type = type; |
| 751 | if (sizeof_array > 0) { |
| 752 | void *new_array = zalloc(sizeof_array); |
| 753 | memcpy(new_array, array, sizeof_array); |
| 754 | new_value->array = new_array; |
| 755 | new_value->sizeof_array = sizeof_array; |
| 756 | } |
| 757 | new_value->owner = me; |
| 758 | new_value->original = original; |
| 759 | new_value->disposition = disposition; |
| 760 | |
| 761 | /* insert the value into the list */ |
| 762 | new_entry = ZALLOC(device_property_entry); |
| 763 | *insertion_point = new_entry; |
| 764 | if (sizeof_init_array > 0) { |
| 765 | void *new_init_array = zalloc(sizeof_init_array); |
| 766 | memcpy(new_init_array, init_array, sizeof_init_array); |
| 767 | new_entry->init_array = new_init_array; |
| 768 | new_entry->sizeof_init_array = sizeof_init_array; |
| 769 | } |
| 770 | new_entry->value = new_value; |
| 771 | |
| 772 | } |
| 773 | |
| 774 | |
| 775 | /* local - not available externally */ |
| 776 | STATIC_INLINE_DEVICE\ |
| 777 | (void) |
| 778 | device_set_property(device *me, |
| 779 | const char *property, |
| 780 | device_property_type type, |
| 781 | const void *array, |
| 782 | int sizeof_array) |
| 783 | { |
| 784 | /* find the property */ |
| 785 | device_property_entry *entry = find_property_entry(me, property); |
| 786 | if (entry != NULL) { |
| 787 | /* existing property - update it */ |
| 788 | void *new_array = 0; |
| 789 | device_property *value = entry->value; |
| 790 | /* check the type matches */ |
| 791 | if (value->type != type) |
| 792 | device_error(me, "conflict between type of new and old value for property %s", property); |
| 793 | /* replace its value */ |
| 794 | if (value->array != NULL) |
| 795 | zfree((void*)value->array); |
| 796 | new_array = (sizeof_array > 0 |
| 797 | ? zalloc(sizeof_array) |
| 798 | : (void*)0); |
| 799 | value->array = new_array; |
| 800 | value->sizeof_array = sizeof_array; |
| 801 | if (sizeof_array > 0) |
| 802 | memcpy(new_array, array, sizeof_array); |
| 803 | return; |
| 804 | } |
| 805 | else { |
| 806 | /* new property - create it */ |
| 807 | device_add_property(me, property, type, |
| 808 | NULL, 0, array, sizeof_array, |
| 809 | NULL, tempoary_object); |
| 810 | } |
| 811 | } |
| 812 | |
| 813 | |
| 814 | STATIC_INLINE_DEVICE\ |
| 815 | (void) |
| 816 | clean_device_properties(device *me) |
| 817 | { |
| 818 | device_property_entry **delete_point = &me->properties; |
| 819 | while (*delete_point != NULL) { |
| 820 | device_property_entry *current = *delete_point; |
| 821 | switch (current->value->disposition) { |
| 822 | case permenant_object: |
| 823 | /* zap the current value, will be initialized later */ |
| 824 | ASSERT(current->init_array != NULL); |
| 825 | if (current->value->array != NULL) { |
| 826 | zfree((void*)current->value->array); |
| 827 | current->value->array = NULL; |
| 828 | } |
| 829 | delete_point = &(*delete_point)->next; |
| 830 | break; |
| 831 | case tempoary_object: |
| 832 | /* zap the actual property, was created during simulation run */ |
| 833 | ASSERT(current->init_array == NULL); |
| 834 | *delete_point = current->next; |
| 835 | if (current->value->array != NULL) |
| 836 | zfree((void*)current->value->array); |
| 837 | zfree(current->value); |
| 838 | zfree(current); |
| 839 | break; |
| 840 | } |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | |
| 845 | INLINE_DEVICE\ |
| 846 | (void) |
| 847 | device_init_static_properties(device *me, |
| 848 | void *data) |
| 849 | { |
| 850 | device_property_entry *property; |
| 851 | for (property = me->properties; |
| 852 | property != NULL; |
| 853 | property = property->next) { |
| 854 | ASSERT(property->init_array != NULL); |
| 855 | ASSERT(property->value->array == NULL); |
| 856 | ASSERT(property->value->disposition == permenant_object); |
| 857 | switch (property->value->type) { |
| 858 | case array_property: |
| 859 | case boolean_property: |
| 860 | case range_array_property: |
| 861 | case reg_array_property: |
| 862 | case string_property: |
| 863 | case string_array_property: |
| 864 | case integer_property: |
| 865 | /* delete the property, and replace it with the original */ |
| 866 | device_set_property(me, property->value->name, |
| 867 | property->value->type, |
| 868 | property->init_array, |
| 869 | property->sizeof_init_array); |
| 870 | break; |
| 871 | case ihandle_property: |
| 872 | break; |
| 873 | } |
| 874 | } |
| 875 | } |
| 876 | |
| 877 | |
| 878 | INLINE_DEVICE\ |
| 879 | (void) |
| 880 | device_init_runtime_properties(device *me, |
| 881 | void *data) |
| 882 | { |
| 883 | device_property_entry *property; |
| 884 | for (property = me->properties; |
| 885 | property != NULL; |
| 886 | property = property->next) { |
| 887 | switch (property->value->disposition) { |
| 888 | case permenant_object: |
| 889 | switch (property->value->type) { |
| 890 | case ihandle_property: |
| 891 | { |
| 892 | device_instance *ihandle; |
| 893 | ihandle_runtime_property_spec spec; |
| 894 | ASSERT(property->init_array != NULL); |
| 895 | ASSERT(property->value->array == NULL); |
| 896 | device_find_ihandle_runtime_property(me, property->value->name, &spec); |
| 897 | ihandle = device_create_instance(spec.phandle, |
| 898 | spec.full_path, |
| 899 | spec.args); |
| 900 | device_set_ihandle_property(me, property->value->name, ihandle); |
| 901 | break; |
| 902 | } |
| 903 | case array_property: |
| 904 | case boolean_property: |
| 905 | case range_array_property: |
| 906 | case integer_property: |
| 907 | case reg_array_property: |
| 908 | case string_property: |
| 909 | case string_array_property: |
| 910 | ASSERT(property->init_array != NULL); |
| 911 | ASSERT(property->value->array != NULL); |
| 912 | break; |
| 913 | } |
| 914 | break; |
| 915 | case tempoary_object: |
| 916 | ASSERT(property->init_array == NULL); |
| 917 | ASSERT(property->value->array != NULL); |
| 918 | break; |
| 919 | } |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | |
| 924 | INLINE_DEVICE\ |
| 925 | (const device_property *) |
| 926 | device_next_property(const device_property *property) |
| 927 | { |
| 928 | /* find the property in the list */ |
| 929 | device *owner = property->owner; |
| 930 | device_property_entry *entry = owner->properties; |
| 931 | while (entry != NULL && entry->value != property) |
| 932 | entry = entry->next; |
| 933 | /* now return the following property */ |
| 934 | ASSERT(entry != NULL); /* must be a member! */ |
| 935 | if (entry->next != NULL) |
| 936 | return entry->next->value; |
| 937 | else |
| 938 | return NULL; |
| 939 | } |
| 940 | |
| 941 | |
| 942 | INLINE_DEVICE\ |
| 943 | (const device_property *) |
| 944 | device_find_property(device *me, |
| 945 | const char *property) |
| 946 | { |
| 947 | if (me == NULL) { |
| 948 | return NULL; |
| 949 | } |
| 950 | else if (property == NULL || strcmp(property, "") == 0) { |
| 951 | if (me->properties == NULL) |
| 952 | return NULL; |
| 953 | else |
| 954 | return me->properties->value; |
| 955 | } |
| 956 | else { |
| 957 | device_property_entry *entry = find_property_entry(me, property); |
| 958 | if (entry != NULL) |
| 959 | return entry->value; |
| 960 | } |
| 961 | return NULL; |
| 962 | } |
| 963 | |
| 964 | |
| 965 | INLINE_DEVICE\ |
| 966 | (void) |
| 967 | device_add_array_property(device *me, |
| 968 | const char *property, |
| 969 | const void *array, |
| 970 | int sizeof_array) |
| 971 | { |
| 972 | device_add_property(me, property, array_property, |
| 973 | array, sizeof_array, array, sizeof_array, |
| 974 | NULL, permenant_object); |
| 975 | } |
| 976 | |
| 977 | INLINE_DEVICE\ |
| 978 | (void) |
| 979 | device_set_array_property(device *me, |
| 980 | const char *property, |
| 981 | const void *array, |
| 982 | int sizeof_array) |
| 983 | { |
| 984 | device_set_property(me, property, array_property, array, sizeof_array); |
| 985 | } |
| 986 | |
| 987 | INLINE_DEVICE\ |
| 988 | (const device_property *) |
| 989 | device_find_array_property(device *me, |
| 990 | const char *property) |
| 991 | { |
| 992 | const device_property *node; |
| 993 | node = device_find_property(me, property); |
| 994 | if (node == (device_property*)0 |
| 995 | || node->type != array_property) |
| 996 | device_error(me, "property %s not found or of wrong type", property); |
| 997 | return node; |
| 998 | } |
| 999 | |
| 1000 | |
| 1001 | INLINE_DEVICE\ |
| 1002 | (void) |
| 1003 | device_add_boolean_property(device *me, |
| 1004 | const char *property, |
| 1005 | int boolean) |
| 1006 | { |
| 1007 | signed32 new_boolean = (boolean ? -1 : 0); |
| 1008 | device_add_property(me, property, boolean_property, |
| 1009 | &new_boolean, sizeof(new_boolean), |
| 1010 | &new_boolean, sizeof(new_boolean), |
| 1011 | NULL, permenant_object); |
| 1012 | } |
| 1013 | |
| 1014 | INLINE_DEVICE\ |
| 1015 | (int) |
| 1016 | device_find_boolean_property(device *me, |
| 1017 | const char *property) |
| 1018 | { |
| 1019 | const device_property *node; |
| 1020 | unsigned_cell boolean; |
| 1021 | node = device_find_property(me, property); |
| 1022 | if (node == (device_property*)0 |
| 1023 | || node->type != boolean_property) |
| 1024 | device_error(me, "property %s not found or of wrong type", property); |
| 1025 | ASSERT(sizeof(boolean) == node->sizeof_array); |
| 1026 | memcpy(&boolean, node->array, sizeof(boolean)); |
| 1027 | return boolean; |
| 1028 | } |
| 1029 | |
| 1030 | |
| 1031 | INLINE_DEVICE\ |
| 1032 | (void) |
| 1033 | device_add_ihandle_runtime_property(device *me, |
| 1034 | const char *property, |
| 1035 | const ihandle_runtime_property_spec *ihandle) |
| 1036 | { |
| 1037 | unsigned_cell *cells; |
| 1038 | char *chp; |
| 1039 | unsigned sizeof_cells = (sizeof(unsigned_cell) * 3 |
| 1040 | + (strlen(ihandle->full_path) + 1) |
| 1041 | + (ihandle->args != NULL |
| 1042 | ? (strlen(ihandle->args) + 1) |
| 1043 | : 0)); |
| 1044 | |
| 1045 | /* the basics */ |
| 1046 | cells = zalloc(sizeof_cells); |
| 1047 | cells[0] = H2BE_cell(device_to_external(ihandle->phandle)); |
| 1048 | cells[1] = (ihandle->full_path == NULL ? 0 : -1); |
| 1049 | cells[2] = (ihandle->args == NULL ? 0 : -1); |
| 1050 | chp = (char*)&cells[3]; |
| 1051 | |
| 1052 | /* the full path (if present) */ |
| 1053 | if (ihandle->full_path != NULL) { |
| 1054 | strcpy(chp, ihandle->full_path); |
| 1055 | chp += strlen(ihandle->full_path) + 1; |
| 1056 | } |
| 1057 | |
| 1058 | /* the args (if present) */ |
| 1059 | if (ihandle->args != NULL) { |
| 1060 | strcpy(chp, ihandle->args); |
| 1061 | chp += strlen(ihandle->args) + 1; |
| 1062 | } |
| 1063 | |
| 1064 | /* add it */ |
| 1065 | ASSERT(sizeof_cells == (chp - (char*)cells)); |
| 1066 | device_add_property(me, property, ihandle_property, |
| 1067 | cells, sizeof_cells, |
| 1068 | NULL, 0, |
| 1069 | NULL, permenant_object); |
| 1070 | } |
| 1071 | |
| 1072 | INLINE_DEVICE\ |
| 1073 | (void) |
| 1074 | device_find_ihandle_runtime_property(device *me, |
| 1075 | const char *property, |
| 1076 | ihandle_runtime_property_spec *ihandle) |
| 1077 | { |
| 1078 | const unsigned_cell *cells; |
| 1079 | const char *chp; |
| 1080 | device_property_entry *entry = find_property_entry(me, property); |
| 1081 | TRACE(trace_devices, |
| 1082 | ("device_find_ihandle_runtime_property(me=0x%lx, property=%s)\n", |
| 1083 | (long)me, property)); |
| 1084 | if (entry == NULL |
| 1085 | || entry->value->type != ihandle_property |
| 1086 | || entry->value->disposition != permenant_object) |
| 1087 | device_error(me, "property %s not found or of wrong type", property); |
| 1088 | cells = entry->init_array; |
| 1089 | chp = (char*)&cells[3]; |
| 1090 | ASSERT(entry->init_array != NULL); |
| 1091 | /* the device to be opened */ |
| 1092 | ihandle->phandle = external_to_device(me, BE2H_cell(cells[0])); |
| 1093 | /* the full path */ |
| 1094 | if (cells[1] != 0) { |
| 1095 | ihandle->full_path = chp; |
| 1096 | chp += strlen(ihandle->full_path) + 1; |
| 1097 | } |
| 1098 | else |
| 1099 | ihandle->full_path = NULL; |
| 1100 | /* the args */ |
| 1101 | if (cells[2] != 0) { |
| 1102 | ihandle->args = chp; |
| 1103 | chp += strlen(ihandle->args) + 1; |
| 1104 | } |
| 1105 | else |
| 1106 | ihandle->args = NULL; |
| 1107 | /* reached the end? */ |
| 1108 | ASSERT(entry->sizeof_init_array |
| 1109 | == (chp - (char*)cells)); |
| 1110 | return; |
| 1111 | } |
| 1112 | |
| 1113 | |
| 1114 | |
| 1115 | INLINE_DEVICE\ |
| 1116 | (void) |
| 1117 | device_set_ihandle_property(device *me, |
| 1118 | const char *property, |
| 1119 | device_instance *ihandle) |
| 1120 | { |
| 1121 | unsigned_cell cells; |
| 1122 | cells = H2BE_cell(device_instance_to_external(ihandle)); |
| 1123 | device_set_property(me, property, ihandle_property, |
| 1124 | &cells, sizeof(cells)); |
| 1125 | |
| 1126 | } |
| 1127 | |
| 1128 | INLINE_DEVICE\ |
| 1129 | (device_instance *) |
| 1130 | device_find_ihandle_property(device *me, |
| 1131 | const char *property) |
| 1132 | { |
| 1133 | const device_property *node; |
| 1134 | unsigned_cell ihandle; |
| 1135 | device_instance *instance; |
| 1136 | |
| 1137 | node = device_find_property(me, property); |
| 1138 | if (node == NULL || node->type != ihandle_property) |
| 1139 | device_error(me, "property %s not found or of wrong type", property); |
| 1140 | if (node->array == NULL) |
| 1141 | device_error(me, "runtime property %s not yet initialized", property); |
| 1142 | |
| 1143 | ASSERT(sizeof(ihandle) == node->sizeof_array); |
| 1144 | memcpy(&ihandle, node->array, sizeof(ihandle)); |
| 1145 | instance = external_to_device_instance(me, BE2H_cell(ihandle)); |
| 1146 | ASSERT(instance != NULL); |
| 1147 | return instance; |
| 1148 | } |
| 1149 | |
| 1150 | |
| 1151 | INLINE_DEVICE\ |
| 1152 | (void) |
| 1153 | device_add_integer_property(device *me, |
| 1154 | const char *property, |
| 1155 | signed_cell integer) |
| 1156 | { |
| 1157 | H2BE(integer); |
| 1158 | device_add_property(me, property, integer_property, |
| 1159 | &integer, sizeof(integer), |
| 1160 | &integer, sizeof(integer), |
| 1161 | NULL, permenant_object); |
| 1162 | } |
| 1163 | |
| 1164 | INLINE_DEVICE\ |
| 1165 | (signed_cell) |
| 1166 | device_find_integer_property(device *me, |
| 1167 | const char *property) |
| 1168 | { |
| 1169 | const device_property *node; |
| 1170 | signed_cell integer; |
| 1171 | TRACE(trace_devices, |
| 1172 | ("device_find_integer(me=0x%lx, property=%s)\n", |
| 1173 | (long)me, property)); |
| 1174 | node = device_find_property(me, property); |
| 1175 | if (node == (device_property*)0 |
| 1176 | || node->type != integer_property) |
| 1177 | device_error(me, "property %s not found or of wrong type", property); |
| 1178 | ASSERT(sizeof(integer) == node->sizeof_array); |
| 1179 | memcpy(&integer, node->array, sizeof(integer)); |
| 1180 | return BE2H_cell(integer); |
| 1181 | } |
| 1182 | |
| 1183 | INLINE_DEVICE\ |
| 1184 | (int) |
| 1185 | device_find_integer_array_property(device *me, |
| 1186 | const char *property, |
| 1187 | unsigned index, |
| 1188 | signed_cell *integer) |
| 1189 | { |
| 1190 | const device_property *node; |
| 1191 | int sizeof_integer = sizeof(*integer); |
| 1192 | signed_cell *cell; |
| 1193 | TRACE(trace_devices, |
| 1194 | ("device_find_integer(me=0x%lx, property=%s)\n", |
| 1195 | (long)me, property)); |
| 1196 | |
| 1197 | /* check things sane */ |
| 1198 | node = device_find_property(me, property); |
| 1199 | if (node == (device_property*)0 |
| 1200 | || (node->type != integer_property |
| 1201 | && node->type != array_property)) |
| 1202 | device_error(me, "property %s not found or of wrong type", property); |
| 1203 | if ((node->sizeof_array % sizeof_integer) != 0) |
| 1204 | device_error(me, "property %s contains an incomplete number of cells", property); |
| 1205 | if (node->sizeof_array <= sizeof_integer * index) |
| 1206 | return 0; |
| 1207 | |
| 1208 | /* Find and convert the value */ |
| 1209 | cell = ((signed_cell*)node->array) + index; |
| 1210 | *integer = BE2H_cell(*cell); |
| 1211 | |
| 1212 | return node->sizeof_array / sizeof_integer; |
| 1213 | } |
| 1214 | |
| 1215 | |
| 1216 | STATIC_INLINE_DEVICE\ |
| 1217 | (unsigned_cell *) |
| 1218 | unit_address_to_cells(const device_unit *unit, |
| 1219 | unsigned_cell *cell, |
| 1220 | int nr_cells) |
| 1221 | { |
| 1222 | int i; |
| 1223 | ASSERT(nr_cells == unit->nr_cells); |
| 1224 | for (i = 0; i < unit->nr_cells; i++) { |
| 1225 | *cell = H2BE_cell(unit->cells[i]); |
| 1226 | cell += 1; |
| 1227 | } |
| 1228 | return cell; |
| 1229 | } |
| 1230 | |
| 1231 | |
| 1232 | STATIC_INLINE_DEVICE\ |
| 1233 | (const unsigned_cell *) |
| 1234 | cells_to_unit_address(const unsigned_cell *cell, |
| 1235 | device_unit *unit, |
| 1236 | int nr_cells) |
| 1237 | { |
| 1238 | int i; |
| 1239 | memset(unit, 0, sizeof(*unit)); |
| 1240 | unit->nr_cells = nr_cells; |
| 1241 | for (i = 0; i < unit->nr_cells; i++) { |
| 1242 | unit->cells[i] = BE2H_cell(*cell); |
| 1243 | cell += 1; |
| 1244 | } |
| 1245 | return cell; |
| 1246 | } |
| 1247 | |
| 1248 | |
| 1249 | STATIC_INLINE_DEVICE\ |
| 1250 | (unsigned) |
| 1251 | nr_range_property_cells(device *me, |
| 1252 | int nr_ranges) |
| 1253 | { |
| 1254 | return ((device_nr_address_cells(me) |
| 1255 | + device_nr_address_cells(device_parent(me)) |
| 1256 | + device_nr_size_cells(me)) |
| 1257 | ) * nr_ranges; |
| 1258 | } |
| 1259 | |
| 1260 | INLINE_DEVICE\ |
| 1261 | (void) |
| 1262 | device_add_range_array_property(device *me, |
| 1263 | const char *property, |
| 1264 | const range_property_spec *ranges, |
| 1265 | unsigned nr_ranges) |
| 1266 | { |
| 1267 | unsigned sizeof_cells = (nr_range_property_cells(me, nr_ranges) |
| 1268 | * sizeof(unsigned_cell)); |
| 1269 | unsigned_cell *cells = zalloc(sizeof_cells); |
| 1270 | unsigned_cell *cell; |
| 1271 | int i; |
| 1272 | |
| 1273 | /* copy the property elements over */ |
| 1274 | cell = cells; |
| 1275 | for (i = 0; i < nr_ranges; i++) { |
| 1276 | const range_property_spec *range = &ranges[i]; |
| 1277 | /* copy the child address */ |
| 1278 | cell = unit_address_to_cells(&range->child_address, cell, |
| 1279 | device_nr_address_cells(me)); |
| 1280 | /* copy the parent address */ |
| 1281 | cell = unit_address_to_cells(&range->parent_address, cell, |
| 1282 | device_nr_address_cells(device_parent(me))); |
| 1283 | /* copy the size */ |
| 1284 | cell = unit_address_to_cells(&range->size, cell, |
| 1285 | device_nr_size_cells(me)); |
| 1286 | } |
| 1287 | ASSERT(cell == &cells[nr_range_property_cells(me, nr_ranges)]); |
| 1288 | |
| 1289 | /* add it */ |
| 1290 | device_add_property(me, property, range_array_property, |
| 1291 | cells, sizeof_cells, |
| 1292 | cells, sizeof_cells, |
| 1293 | NULL, permenant_object); |
| 1294 | |
| 1295 | zfree(cells); |
| 1296 | } |
| 1297 | |
| 1298 | INLINE_DEVICE\ |
| 1299 | (int) |
| 1300 | device_find_range_array_property(device *me, |
| 1301 | const char *property, |
| 1302 | unsigned index, |
| 1303 | range_property_spec *range) |
| 1304 | { |
| 1305 | const device_property *node; |
| 1306 | unsigned sizeof_entry = (nr_range_property_cells(me, 1) |
| 1307 | * sizeof(unsigned_cell)); |
| 1308 | const unsigned_cell *cells; |
| 1309 | |
| 1310 | /* locate the property */ |
| 1311 | node = device_find_property(me, property); |
| 1312 | if (node == (device_property*)0 |
| 1313 | || node->type != range_array_property) |
| 1314 | device_error(me, "property %s not found or of wrong type", property); |
| 1315 | |
| 1316 | /* aligned ? */ |
| 1317 | if ((node->sizeof_array % sizeof_entry) != 0) |
| 1318 | device_error(me, "property %s contains an incomplete number of entries", |
| 1319 | property); |
| 1320 | |
| 1321 | /* within bounds? */ |
| 1322 | if (node->sizeof_array < sizeof_entry * (index + 1)) |
| 1323 | return 0; |
| 1324 | |
| 1325 | /* find the range of interest */ |
| 1326 | cells = (unsigned_cell*)((char*)node->array + sizeof_entry * index); |
| 1327 | |
| 1328 | /* copy the child address out - converting as we go */ |
| 1329 | cells = cells_to_unit_address(cells, &range->child_address, |
| 1330 | device_nr_address_cells(me)); |
| 1331 | |
| 1332 | /* copy the parent address out - converting as we go */ |
| 1333 | cells = cells_to_unit_address(cells, &range->parent_address, |
| 1334 | device_nr_address_cells(device_parent(me))); |
| 1335 | |
| 1336 | /* copy the size - converting as we go */ |
| 1337 | cells = cells_to_unit_address(cells, &range->size, |
| 1338 | device_nr_size_cells(me)); |
| 1339 | |
| 1340 | return node->sizeof_array / sizeof_entry; |
| 1341 | } |
| 1342 | |
| 1343 | |
| 1344 | STATIC_INLINE_DEVICE\ |
| 1345 | (unsigned) |
| 1346 | nr_reg_property_cells(device *me, |
| 1347 | int nr_regs) |
| 1348 | { |
| 1349 | return (device_nr_address_cells(device_parent(me)) |
| 1350 | + device_nr_size_cells(device_parent(me)) |
| 1351 | ) * nr_regs; |
| 1352 | } |
| 1353 | |
| 1354 | INLINE_DEVICE\ |
| 1355 | (void) |
| 1356 | device_add_reg_array_property(device *me, |
| 1357 | const char *property, |
| 1358 | const reg_property_spec *regs, |
| 1359 | unsigned nr_regs) |
| 1360 | { |
| 1361 | unsigned sizeof_cells = (nr_reg_property_cells(me, nr_regs) |
| 1362 | * sizeof(unsigned_cell)); |
| 1363 | unsigned_cell *cells = zalloc(sizeof_cells); |
| 1364 | unsigned_cell *cell; |
| 1365 | int i; |
| 1366 | |
| 1367 | /* copy the property elements over */ |
| 1368 | cell = cells; |
| 1369 | for (i = 0; i < nr_regs; i++) { |
| 1370 | const reg_property_spec *reg = ®s[i]; |
| 1371 | /* copy the address */ |
| 1372 | cell = unit_address_to_cells(®->address, cell, |
| 1373 | device_nr_address_cells(device_parent(me))); |
| 1374 | /* copy the size */ |
| 1375 | cell = unit_address_to_cells(®->size, cell, |
| 1376 | device_nr_size_cells(device_parent(me))); |
| 1377 | } |
| 1378 | ASSERT(cell == &cells[nr_reg_property_cells(me, nr_regs)]); |
| 1379 | |
| 1380 | /* add it */ |
| 1381 | device_add_property(me, property, reg_array_property, |
| 1382 | cells, sizeof_cells, |
| 1383 | cells, sizeof_cells, |
| 1384 | NULL, permenant_object); |
| 1385 | |
| 1386 | zfree(cells); |
| 1387 | } |
| 1388 | |
| 1389 | INLINE_DEVICE\ |
| 1390 | (int) |
| 1391 | device_find_reg_array_property(device *me, |
| 1392 | const char *property, |
| 1393 | unsigned index, |
| 1394 | reg_property_spec *reg) |
| 1395 | { |
| 1396 | const device_property *node; |
| 1397 | unsigned sizeof_entry = (nr_reg_property_cells(me, 1) |
| 1398 | * sizeof(unsigned_cell)); |
| 1399 | const unsigned_cell *cells; |
| 1400 | |
| 1401 | /* locate the property */ |
| 1402 | node = device_find_property(me, property); |
| 1403 | if (node == (device_property*)0 |
| 1404 | || node->type != reg_array_property) |
| 1405 | device_error(me, "property %s not found or of wrong type", property); |
| 1406 | |
| 1407 | /* aligned ? */ |
| 1408 | if ((node->sizeof_array % sizeof_entry) != 0) |
| 1409 | device_error(me, "property %s contains an incomplete number of entries", |
| 1410 | property); |
| 1411 | |
| 1412 | /* within bounds? */ |
| 1413 | if (node->sizeof_array < sizeof_entry * (index + 1)) |
| 1414 | return 0; |
| 1415 | |
| 1416 | /* find the range of interest */ |
| 1417 | cells = (unsigned_cell*)((char*)node->array + sizeof_entry * index); |
| 1418 | |
| 1419 | /* copy the address out - converting as we go */ |
| 1420 | cells = cells_to_unit_address(cells, ®->address, |
| 1421 | device_nr_address_cells(device_parent(me))); |
| 1422 | |
| 1423 | /* copy the size out - converting as we go */ |
| 1424 | cells = cells_to_unit_address(cells, ®->size, |
| 1425 | device_nr_size_cells(device_parent(me))); |
| 1426 | |
| 1427 | return node->sizeof_array / sizeof_entry; |
| 1428 | } |
| 1429 | |
| 1430 | |
| 1431 | INLINE_DEVICE\ |
| 1432 | (void) |
| 1433 | device_add_string_property(device *me, |
| 1434 | const char *property, |
| 1435 | const char *string) |
| 1436 | { |
| 1437 | device_add_property(me, property, string_property, |
| 1438 | string, strlen(string) + 1, |
| 1439 | string, strlen(string) + 1, |
| 1440 | NULL, permenant_object); |
| 1441 | } |
| 1442 | |
| 1443 | INLINE_DEVICE\ |
| 1444 | (const char *) |
| 1445 | device_find_string_property(device *me, |
| 1446 | const char *property) |
| 1447 | { |
| 1448 | const device_property *node; |
| 1449 | const char *string; |
| 1450 | node = device_find_property(me, property); |
| 1451 | if (node == (device_property*)0 |
| 1452 | || node->type != string_property) |
| 1453 | device_error(me, "property %s not found or of wrong type", property); |
| 1454 | string = node->array; |
| 1455 | ASSERT(strlen(string) + 1 == node->sizeof_array); |
| 1456 | return string; |
| 1457 | } |
| 1458 | |
| 1459 | INLINE_DEVICE\ |
| 1460 | (void) |
| 1461 | device_add_string_array_property(device *me, |
| 1462 | const char *property, |
| 1463 | const string_property_spec *strings, |
| 1464 | unsigned nr_strings) |
| 1465 | { |
| 1466 | int sizeof_array; |
| 1467 | int string_nr; |
| 1468 | char *array; |
| 1469 | char *chp; |
| 1470 | if (nr_strings == 0) |
| 1471 | device_error(me, "property %s must be non-null", property); |
| 1472 | /* total up the size of the needed array */ |
| 1473 | for (sizeof_array = 0, string_nr = 0; |
| 1474 | string_nr < nr_strings; |
| 1475 | string_nr ++) { |
| 1476 | sizeof_array += strlen(strings[string_nr]) + 1; |
| 1477 | } |
| 1478 | /* create the array */ |
| 1479 | array = (char*)zalloc(sizeof_array); |
| 1480 | chp = array; |
| 1481 | for (string_nr = 0; |
| 1482 | string_nr < nr_strings; |
| 1483 | string_nr++) { |
| 1484 | strcpy(chp, strings[string_nr]); |
| 1485 | chp += strlen(chp) + 1; |
| 1486 | } |
| 1487 | ASSERT(chp == array + sizeof_array); |
| 1488 | /* now enter it */ |
| 1489 | device_add_property(me, property, string_array_property, |
| 1490 | array, sizeof_array, |
| 1491 | array, sizeof_array, |
| 1492 | NULL, permenant_object); |
| 1493 | } |
| 1494 | |
| 1495 | INLINE_DEVICE\ |
| 1496 | (int) |
| 1497 | device_find_string_array_property(device *me, |
| 1498 | const char *property, |
| 1499 | unsigned index, |
| 1500 | string_property_spec *string) |
| 1501 | { |
| 1502 | const device_property *node; |
| 1503 | node = device_find_property(me, property); |
| 1504 | if (node == (device_property*)0) |
| 1505 | device_error(me, "property %s not found", property); |
| 1506 | switch (node->type) { |
| 1507 | default: |
| 1508 | device_error(me, "property %s of wrong type", property); |
| 1509 | break; |
| 1510 | case string_property: |
| 1511 | if (index == 0) { |
| 1512 | *string = node->array; |
| 1513 | ASSERT(strlen(*string) + 1 == node->sizeof_array); |
| 1514 | return 1; |
| 1515 | } |
| 1516 | break; |
| 1517 | case array_property: |
| 1518 | if (node->sizeof_array == 0 |
| 1519 | || ((char*)node->array)[node->sizeof_array - 1] != '\0') |
| 1520 | device_error(me, "property %s invalid for string array", property); |
| 1521 | /* FALL THROUGH */ |
| 1522 | case string_array_property: |
| 1523 | ASSERT(node->sizeof_array > 0); |
| 1524 | ASSERT(((char*)node->array)[node->sizeof_array - 1] == '\0'); |
| 1525 | { |
| 1526 | const char *chp = node->array; |
| 1527 | int nr_entries = 0; |
| 1528 | /* count the number of strings, keeping an eye out for the one |
| 1529 | we're looking for */ |
| 1530 | *string = chp; |
| 1531 | do { |
| 1532 | if (*chp == '\0') { |
| 1533 | /* next string */ |
| 1534 | nr_entries++; |
| 1535 | chp++; |
| 1536 | if (nr_entries == index) |
| 1537 | *string = chp; |
| 1538 | } |
| 1539 | else { |
| 1540 | chp++; |
| 1541 | } |
| 1542 | } while (chp < (char*)node->array + node->sizeof_array); |
| 1543 | if (index < nr_entries) |
| 1544 | return nr_entries; |
| 1545 | else { |
| 1546 | *string = NULL; |
| 1547 | return 0; |
| 1548 | } |
| 1549 | } |
| 1550 | break; |
| 1551 | } |
| 1552 | return 0; |
| 1553 | } |
| 1554 | |
| 1555 | INLINE_DEVICE\ |
| 1556 | (void) |
| 1557 | device_add_duplicate_property(device *me, |
| 1558 | const char *property, |
| 1559 | const device_property *original) |
| 1560 | { |
| 1561 | device_property_entry *master; |
| 1562 | TRACE(trace_devices, |
| 1563 | ("device_add_duplicate_property(me=0x%lx, property=%s, ...)\n", |
| 1564 | (long)me, property)); |
| 1565 | if (original->disposition != permenant_object) |
| 1566 | device_error(me, "Can only duplicate permenant objects"); |
| 1567 | /* find the original's master */ |
| 1568 | master = original->owner->properties; |
| 1569 | while (master->value != original) { |
| 1570 | master = master->next; |
| 1571 | ASSERT(master != NULL); |
| 1572 | } |
| 1573 | /* now duplicate it */ |
| 1574 | device_add_property(me, property, |
| 1575 | original->type, |
| 1576 | master->init_array, master->sizeof_init_array, |
| 1577 | original->array, original->sizeof_array, |
| 1578 | original, permenant_object); |
| 1579 | } |
| 1580 | |
| 1581 | |
| 1582 | \f |
| 1583 | /* Device Hardware: */ |
| 1584 | |
| 1585 | INLINE_DEVICE\ |
| 1586 | (unsigned) |
| 1587 | device_io_read_buffer(device *me, |
| 1588 | void *dest, |
| 1589 | int space, |
| 1590 | unsigned_word addr, |
| 1591 | unsigned nr_bytes, |
| 1592 | cpu *processor, |
| 1593 | unsigned_word cia) |
| 1594 | { |
| 1595 | if (me->callback->io.read_buffer == NULL) |
| 1596 | device_error(me, "no io.read_buffer method"); |
| 1597 | return me->callback->io.read_buffer(me, dest, space, |
| 1598 | addr, nr_bytes, |
| 1599 | processor, cia); |
| 1600 | } |
| 1601 | |
| 1602 | INLINE_DEVICE\ |
| 1603 | (unsigned) |
| 1604 | device_io_write_buffer(device *me, |
| 1605 | const void *source, |
| 1606 | int space, |
| 1607 | unsigned_word addr, |
| 1608 | unsigned nr_bytes, |
| 1609 | cpu *processor, |
| 1610 | unsigned_word cia) |
| 1611 | { |
| 1612 | if (me->callback->io.write_buffer == NULL) |
| 1613 | device_error(me, "no io.write_buffer method"); |
| 1614 | return me->callback->io.write_buffer(me, source, space, |
| 1615 | addr, nr_bytes, |
| 1616 | processor, cia); |
| 1617 | } |
| 1618 | |
| 1619 | INLINE_DEVICE\ |
| 1620 | (unsigned) |
| 1621 | device_dma_read_buffer(device *me, |
| 1622 | void *dest, |
| 1623 | int space, |
| 1624 | unsigned_word addr, |
| 1625 | unsigned nr_bytes) |
| 1626 | { |
| 1627 | if (me->callback->dma.read_buffer == NULL) |
| 1628 | device_error(me, "no dma.read_buffer method"); |
| 1629 | return me->callback->dma.read_buffer(me, dest, space, |
| 1630 | addr, nr_bytes); |
| 1631 | } |
| 1632 | |
| 1633 | INLINE_DEVICE\ |
| 1634 | (unsigned) |
| 1635 | device_dma_write_buffer(device *me, |
| 1636 | const void *source, |
| 1637 | int space, |
| 1638 | unsigned_word addr, |
| 1639 | unsigned nr_bytes, |
| 1640 | int violate_read_only_section) |
| 1641 | { |
| 1642 | if (me->callback->dma.write_buffer == NULL) |
| 1643 | device_error(me, "no dma.write_buffer method"); |
| 1644 | return me->callback->dma.write_buffer(me, source, space, |
| 1645 | addr, nr_bytes, |
| 1646 | violate_read_only_section); |
| 1647 | } |
| 1648 | |
| 1649 | INLINE_DEVICE\ |
| 1650 | (void) |
| 1651 | device_attach_address(device *me, |
| 1652 | attach_type attach, |
| 1653 | int space, |
| 1654 | unsigned_word addr, |
| 1655 | unsigned nr_bytes, |
| 1656 | access_type access, |
| 1657 | device *client) /*callback/default*/ |
| 1658 | { |
| 1659 | if (me->callback->address.attach == NULL) |
| 1660 | device_error(me, "no address.attach method"); |
| 1661 | me->callback->address.attach(me, attach, space, |
| 1662 | addr, nr_bytes, access, client); |
| 1663 | } |
| 1664 | |
| 1665 | INLINE_DEVICE\ |
| 1666 | (void) |
| 1667 | device_detach_address(device *me, |
| 1668 | attach_type attach, |
| 1669 | int space, |
| 1670 | unsigned_word addr, |
| 1671 | unsigned nr_bytes, |
| 1672 | access_type access, |
| 1673 | device *client) /*callback/default*/ |
| 1674 | { |
| 1675 | if (me->callback->address.detach == NULL) |
| 1676 | device_error(me, "no address.detach method"); |
| 1677 | me->callback->address.detach(me, attach, space, |
| 1678 | addr, nr_bytes, access, client); |
| 1679 | } |
| 1680 | |
| 1681 | |
| 1682 | \f |
| 1683 | /* Interrupts: */ |
| 1684 | |
| 1685 | INLINE_DEVICE(void) |
| 1686 | device_interrupt_event(device *me, |
| 1687 | int my_port, |
| 1688 | int level, |
| 1689 | cpu *processor, |
| 1690 | unsigned_word cia) |
| 1691 | { |
| 1692 | int found_an_edge = 0; |
| 1693 | device_interrupt_edge *edge; |
| 1694 | /* device's interrupt lines directly connected */ |
| 1695 | for (edge = me->interrupt_destinations; |
| 1696 | edge != NULL; |
| 1697 | edge = edge->next) { |
| 1698 | if (edge->my_port == my_port) { |
| 1699 | if (edge->dest->callback->interrupt.event == NULL) |
| 1700 | device_error(me, "no interrupt method"); |
| 1701 | edge->dest->callback->interrupt.event(edge->dest, |
| 1702 | edge->dest_port, |
| 1703 | me, |
| 1704 | my_port, |
| 1705 | level, |
| 1706 | processor, cia); |
| 1707 | found_an_edge = 1; |
| 1708 | } |
| 1709 | } |
| 1710 | if (!found_an_edge) { |
| 1711 | device_error(me, "No interrupt edge for port %d", my_port); |
| 1712 | } |
| 1713 | } |
| 1714 | |
| 1715 | INLINE_DEVICE\ |
| 1716 | (void) |
| 1717 | device_interrupt_attach(device *me, |
| 1718 | int my_port, |
| 1719 | device *dest, |
| 1720 | int dest_port, |
| 1721 | object_disposition disposition) |
| 1722 | { |
| 1723 | attach_device_interrupt_edge(&me->interrupt_destinations, |
| 1724 | my_port, |
| 1725 | dest, |
| 1726 | dest_port, |
| 1727 | disposition); |
| 1728 | } |
| 1729 | |
| 1730 | INLINE_DEVICE\ |
| 1731 | (void) |
| 1732 | device_interrupt_detach(device *me, |
| 1733 | int my_port, |
| 1734 | device *dest, |
| 1735 | int dest_port) |
| 1736 | { |
| 1737 | detach_device_interrupt_edge(me, |
| 1738 | &me->interrupt_destinations, |
| 1739 | my_port, |
| 1740 | dest, |
| 1741 | dest_port); |
| 1742 | } |
| 1743 | |
| 1744 | INLINE_DEVICE\ |
| 1745 | (void) |
| 1746 | device_interrupt_traverse(device *me, |
| 1747 | device_interrupt_traverse_function *handler, |
| 1748 | void *data) |
| 1749 | { |
| 1750 | device_interrupt_edge *interrupt_edge; |
| 1751 | for (interrupt_edge = me->interrupt_destinations; |
| 1752 | interrupt_edge != NULL; |
| 1753 | interrupt_edge = interrupt_edge->next) { |
| 1754 | handler(me, interrupt_edge->my_port, |
| 1755 | interrupt_edge->dest, interrupt_edge->dest_port, |
| 1756 | data); |
| 1757 | } |
| 1758 | } |
| 1759 | |
| 1760 | INLINE_DEVICE\ |
| 1761 | (int) |
| 1762 | device_interrupt_decode(device *me, |
| 1763 | const char *port_name, |
| 1764 | port_direction direction) |
| 1765 | { |
| 1766 | if (port_name == NULL || port_name[0] == '\0') |
| 1767 | return 0; |
| 1768 | if (isdigit(port_name[0])) { |
| 1769 | return strtoul(port_name, NULL, 0); |
| 1770 | } |
| 1771 | else { |
| 1772 | const device_interrupt_port_descriptor *ports = |
| 1773 | me->callback->interrupt.ports; |
| 1774 | if (ports != NULL) { |
| 1775 | while (ports->name != NULL) { |
| 1776 | if (ports->direction == bidirect_port |
| 1777 | || ports->direction == direction) { |
| 1778 | if (ports->nr_ports > 0) { |
| 1779 | int len = strlen(ports->name); |
| 1780 | if (strncmp(port_name, ports->name, len) == 0) { |
| 1781 | if (port_name[len] == '\0') |
| 1782 | return ports->number; |
| 1783 | else if(isdigit(port_name[len])) { |
| 1784 | int port = ports->number + strtoul(&port_name[len], NULL, 0); |
| 1785 | if (port >= ports->number + ports->nr_ports) |
| 1786 | device_error(me, "Interrupt port %s out of range", |
| 1787 | port_name); |
| 1788 | return port; |
| 1789 | } |
| 1790 | } |
| 1791 | } |
| 1792 | else if (strcmp(port_name, ports->name) == 0) |
| 1793 | return ports->number; |
| 1794 | } |
| 1795 | ports++; |
| 1796 | } |
| 1797 | } |
| 1798 | } |
| 1799 | device_error(me, "Unreconized interrupt port %s", port_name); |
| 1800 | return 0; |
| 1801 | } |
| 1802 | |
| 1803 | INLINE_DEVICE\ |
| 1804 | (int) |
| 1805 | device_interrupt_encode(device *me, |
| 1806 | int port_number, |
| 1807 | char *buf, |
| 1808 | int sizeof_buf, |
| 1809 | port_direction direction) |
| 1810 | { |
| 1811 | const device_interrupt_port_descriptor *ports = NULL; |
| 1812 | ports = me->callback->interrupt.ports; |
| 1813 | if (ports != NULL) { |
| 1814 | while (ports->name != NULL) { |
| 1815 | if (ports->direction == bidirect_port |
| 1816 | || ports->direction == direction) { |
| 1817 | if (ports->nr_ports > 0) { |
| 1818 | if (port_number >= ports->number |
| 1819 | && port_number < ports->number + ports->nr_ports) { |
| 1820 | strcpy(buf, ports->name); |
| 1821 | sprintf(buf + strlen(buf), "%d", port_number - ports->number); |
| 1822 | if (strlen(buf) >= sizeof_buf) |
| 1823 | error("device_interrupt_encode: buffer overflow"); |
| 1824 | return strlen(buf); |
| 1825 | } |
| 1826 | } |
| 1827 | else { |
| 1828 | if (ports->number == port_number) { |
| 1829 | if (strlen(ports->name) >= sizeof_buf) |
| 1830 | error("device_interrupt_encode: buffer overflow"); |
| 1831 | strcpy(buf, ports->name); |
| 1832 | return strlen(buf); |
| 1833 | } |
| 1834 | } |
| 1835 | } |
| 1836 | ports++; |
| 1837 | } |
| 1838 | } |
| 1839 | sprintf(buf, "%d", port_number); |
| 1840 | if (strlen(buf) >= sizeof_buf) |
| 1841 | error("device_interrupt_encode: buffer overflow"); |
| 1842 | return strlen(buf); |
| 1843 | } |
| 1844 | |
| 1845 | |
| 1846 | \f |
| 1847 | /* IOCTL: */ |
| 1848 | |
| 1849 | EXTERN_DEVICE\ |
| 1850 | (int) |
| 1851 | device_ioctl(device *me, |
| 1852 | cpu *processor, |
| 1853 | unsigned_word cia, |
| 1854 | device_ioctl_request request, |
| 1855 | ...) |
| 1856 | { |
| 1857 | int status; |
| 1858 | va_list ap; |
| 1859 | va_start(ap, request); |
| 1860 | if (me->callback->ioctl == NULL) |
| 1861 | device_error(me, "no ioctl method"); |
| 1862 | status = me->callback->ioctl(me, processor, cia, request, ap); |
| 1863 | va_end(ap); |
| 1864 | return status; |
| 1865 | } |
| 1866 | |
| 1867 | |
| 1868 | \f |
| 1869 | /* I/O */ |
| 1870 | |
| 1871 | EXTERN_DEVICE\ |
| 1872 | (void volatile) |
| 1873 | device_error(device *me, |
| 1874 | const char *fmt, |
| 1875 | ...) |
| 1876 | { |
| 1877 | char message[1024]; |
| 1878 | va_list ap; |
| 1879 | /* format the message */ |
| 1880 | va_start(ap, fmt); |
| 1881 | vsprintf(message, fmt, ap); |
| 1882 | va_end(ap); |
| 1883 | /* sanity check */ |
| 1884 | if (strlen(message) >= sizeof(message)) |
| 1885 | error("device_error: buffer overflow"); |
| 1886 | if (me == NULL) |
| 1887 | error("device: %s", message); |
| 1888 | else if (me->path != NULL && me->path[0] != '\0') |
| 1889 | error("%s: %s", me->path, message); |
| 1890 | else if (me->name != NULL && me->name[0] != '\0') |
| 1891 | error("%s: %s", me->name, message); |
| 1892 | else |
| 1893 | error("device: %s", message); |
| 1894 | while(1); |
| 1895 | } |
| 1896 | |
| 1897 | INLINE_DEVICE\ |
| 1898 | (int) |
| 1899 | device_trace(device *me) |
| 1900 | { |
| 1901 | return me->trace; |
| 1902 | } |
| 1903 | |
| 1904 | \f |
| 1905 | /* External representation */ |
| 1906 | |
| 1907 | INLINE_DEVICE\ |
| 1908 | (device *) |
| 1909 | external_to_device(device *tree_member, |
| 1910 | unsigned_cell phandle) |
| 1911 | { |
| 1912 | device *me = cap_internal(tree_member->phandles, phandle); |
| 1913 | return me; |
| 1914 | } |
| 1915 | |
| 1916 | INLINE_DEVICE\ |
| 1917 | (unsigned_cell) |
| 1918 | device_to_external(device *me) |
| 1919 | { |
| 1920 | unsigned_cell phandle = cap_external(me->phandles, me); |
| 1921 | return phandle; |
| 1922 | } |
| 1923 | |
| 1924 | INLINE_DEVICE\ |
| 1925 | (device_instance *) |
| 1926 | external_to_device_instance(device *tree_member, |
| 1927 | unsigned_cell ihandle) |
| 1928 | { |
| 1929 | device_instance *instance = cap_internal(tree_member->ihandles, ihandle); |
| 1930 | return instance; |
| 1931 | } |
| 1932 | |
| 1933 | INLINE_DEVICE\ |
| 1934 | (unsigned_cell) |
| 1935 | device_instance_to_external(device_instance *instance) |
| 1936 | { |
| 1937 | unsigned_cell ihandle = cap_external(instance->owner->ihandles, instance); |
| 1938 | return ihandle; |
| 1939 | } |
| 1940 | |
| 1941 | |
| 1942 | /* Map onto the event functions */ |
| 1943 | |
| 1944 | INLINE_DEVICE\ |
| 1945 | (event_entry_tag) |
| 1946 | device_event_queue_schedule(device *me, |
| 1947 | signed64 delta_time, |
| 1948 | device_event_handler *handler, |
| 1949 | void *data) |
| 1950 | { |
| 1951 | return event_queue_schedule(psim_event_queue(me->system), |
| 1952 | delta_time, |
| 1953 | handler, |
| 1954 | data); |
| 1955 | } |
| 1956 | |
| 1957 | INLINE_DEVICE\ |
| 1958 | (void) |
| 1959 | device_event_queue_deschedule(device *me, |
| 1960 | event_entry_tag event_to_remove) |
| 1961 | { |
| 1962 | event_queue_deschedule(psim_event_queue(me->system), |
| 1963 | event_to_remove); |
| 1964 | } |
| 1965 | |
| 1966 | INLINE_DEVICE\ |
| 1967 | (signed64) |
| 1968 | device_event_queue_time(device *me) |
| 1969 | { |
| 1970 | return event_queue_time(psim_event_queue(me->system)); |
| 1971 | } |
| 1972 | |
| 1973 | |
| 1974 | /* Initialization: */ |
| 1975 | |
| 1976 | |
| 1977 | INLINE_DEVICE\ |
| 1978 | (void) |
| 1979 | device_clean(device *me, |
| 1980 | void *data) |
| 1981 | { |
| 1982 | psim *system; |
| 1983 | system = (psim*)data; |
| 1984 | TRACE(trace_device_init, ("device_clean - initializing %s", me->path)); |
| 1985 | clean_device_interrupt_edges(&me->interrupt_destinations); |
| 1986 | clean_device_instances(me); |
| 1987 | clean_device_properties(me); |
| 1988 | } |
| 1989 | |
| 1990 | /* Device initialization: */ |
| 1991 | |
| 1992 | INLINE_DEVICE\ |
| 1993 | (void) |
| 1994 | device_init_address(device *me, |
| 1995 | void *data) |
| 1996 | { |
| 1997 | psim *system = (psim*)data; |
| 1998 | int nr_address_cells; |
| 1999 | int nr_size_cells; |
| 2000 | TRACE(trace_device_init, ("device_init_address - initializing %s", me->path)); |
| 2001 | |
| 2002 | /* ensure the cap database is valid */ |
| 2003 | if (me->parent == NULL) { |
| 2004 | cap_init(me->ihandles); |
| 2005 | cap_init(me->phandles); |
| 2006 | } |
| 2007 | |
| 2008 | /* some basics */ |
| 2009 | me->system = system; /* misc things not known until now */ |
| 2010 | me->trace = (device_find_property(me, "trace") |
| 2011 | ? device_find_integer_property(me, "trace") |
| 2012 | : 0); |
| 2013 | |
| 2014 | /* Ensure that the first address found in the reg property matches |
| 2015 | anything that was specified as part of the devices name */ |
| 2016 | if (device_find_property(me, "reg") != NULL) { |
| 2017 | reg_property_spec unit; |
| 2018 | device_find_reg_array_property(me, "reg", 0, &unit); |
| 2019 | if (memcmp(device_unit_address(me), &unit.address, sizeof(unit.address)) |
| 2020 | != 0) |
| 2021 | device_error(me, "Unit address as specified by the reg property in conflict with the value previously specified in the devices path"); |
| 2022 | } |
| 2023 | |
| 2024 | /* ensure that the devices #address/size-cells is consistent */ |
| 2025 | nr_address_cells = device_nr_address_cells(me); |
| 2026 | if (device_find_property(me, "#address-cells") != NULL |
| 2027 | && (nr_address_cells |
| 2028 | != device_find_integer_property(me, "#address-cells"))) |
| 2029 | device_error(me, "#address-cells property used before defined"); |
| 2030 | nr_size_cells = device_nr_size_cells(me); |
| 2031 | if (device_find_property(me, "#size-cells") != NULL |
| 2032 | && (nr_size_cells |
| 2033 | != device_find_integer_property(me, "#size-cells"))) |
| 2034 | device_error(me, "#size-cells property used before defined"); |
| 2035 | |
| 2036 | /* now init it */ |
| 2037 | if (me->callback->init.address != NULL) |
| 2038 | me->callback->init.address(me); |
| 2039 | } |
| 2040 | |
| 2041 | INLINE_DEVICE\ |
| 2042 | (void) |
| 2043 | device_init_data(device *me, |
| 2044 | void *data) |
| 2045 | { |
| 2046 | TRACE(trace_device_init, ("device_init_data - initializing %s", me->path)); |
| 2047 | if (me->callback->init.data != NULL) |
| 2048 | me->callback->init.data(me); |
| 2049 | } |
| 2050 | |
| 2051 | #endif /* _DEVICE_C_ */ |