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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   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                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26
  27 #include "log.h"
  28 #include "configuration.h"
  29 #include "binarybuffer.h"
  30 #include "jtag.h"
  31
  32 #include <string.h>
  33 #include <stdlib.h>
  34
  35 #include <sys/types.h>
  36 #include <sys/stat.h>
  37 #include <unistd.h>
  38 #include <errno.h>
  39
  40 #include <sys/time.h>
  41 #include <time.h>
  42
  43 #include <time_support.h>
  44
  45 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  46
  47 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50
  51 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54
  55 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71
  72 /* targets
  73  */
  74 extern target_type_t arm7tdmi_target;
  75 extern target_type_t arm720t_target;
  76 extern target_type_t arm9tdmi_target;
  77 extern target_type_t arm920t_target;
  78 extern target_type_t arm966e_target;
  79
  80 target_type_t *target_types[] =
  81 {
  82         &arm7tdmi_target,
  83         &arm9tdmi_target,
  84         &arm920t_target,
  85         &arm720t_target,
  86         &arm966e_target,
  87         NULL,
  88 };
  89
  90 target_t *targets = NULL;
  91 target_event_callback_t *target_event_callbacks = NULL;
  92 target_timer_callback_t *target_timer_callbacks = NULL;
  93
  94 char *target_state_strings[] =
  95 {
  96         "unknown",
  97         "running",
  98         "halted",
  99         "reset",
 100         "debug_running",
 101 };
 102
 103 char *target_debug_reason_strings[] =
 104 {
 105         "debug request", "breakpoint", "watchpoint",
 106         "watchpoint and breakpoint", "single step",
 107         "target not halted"
 108 };
 109
 110 char *target_endianess_strings[] =
 111 {
 112         "big endian",
 113         "little endian",
 114 };
 115
 116 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 117
 118 static int target_continous_poll = 1;
 119
 120 /* read a u32 from a buffer in target memory endianness */
 121 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 122 {
 123         if (target->endianness == TARGET_LITTLE_ENDIAN)
 124                 return le_to_h_u32(buffer);
 125         else
 126                 return be_to_h_u32(buffer);
 127 }
 128
 129 /* read a u16 from a buffer in target memory endianness */
 130 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 131 {
 132         if (target->endianness == TARGET_LITTLE_ENDIAN)
 133                 return le_to_h_u16(buffer);
 134         else
 135                 return be_to_h_u16(buffer);
 136 }
 137
 138 /* write a u32 to a buffer in target memory endianness */
 139 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 140 {
 141         if (target->endianness == TARGET_LITTLE_ENDIAN)
 142                 h_u32_to_le(buffer, value);
 143         else
 144                 h_u32_to_be(buffer, value);
 145 }
 146
 147 /* write a u16 to a buffer in target memory endianness */
 148 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 149 {
 150         if (target->endianness == TARGET_LITTLE_ENDIAN)
 151                 h_u16_to_le(buffer, value);
 152         else
 153                 h_u16_to_be(buffer, value);
 154 }
 155
 156 /* returns a pointer to the n-th configured target */
 157 target_t* get_target_by_num(int num)
 158 {
 159         target_t *target = targets;
 160         int i = 0;
 161
 162         while (target)
 163         {
 164                 if (num == i)
 165                         return target;
 166                 target = target->next;
 167                 i++;
 168         }
 169
 170         return NULL;
 171 }
 172
 173 int get_num_by_target(target_t *query_target)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (target == query_target)
 181                         return i;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return -1;
 187 }
 188
 189 target_t* get_current_target(command_context_t *cmd_ctx)
 190 {
 191         target_t *target = get_target_by_num(cmd_ctx->current_target);
 192
 193         if (target == NULL)
 194         {
 195                 ERROR("BUG: current_target out of bounds");
 196                 exit(-1);
 197         }
 198
 199         return target;
 200 }
 201
 202 /* Process target initialization, when target entered debug out of reset
 203  * the handler is unregistered at the end of this function, so it's only called once
 204  */
 205 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 206 {
 207         FILE *script;
 208         struct command_context_s *cmd_ctx = priv;
 209
 210         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 211         {
 212                 target_unregister_event_callback(target_init_handler, priv);
 213
 214                 script = fopen(target->reset_script, "r");
 215                 if (!script)
 216                 {
 217                         ERROR("couldn't open script file %s", target->reset_script);
 218                                 return ERROR_OK;
 219                 }
 220
 221                 INFO("executing reset script '%s'", target->reset_script);
 222                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 223                 fclose(script);
 224
 225                 jtag_execute_queue();
 226         }
 227
 228         return ERROR_OK;
 229 }
 230
 231 int target_run_and_halt_handler(void *priv)
 232 {
 233         target_t *target = priv;
 234
 235         target->type->halt(target);
 236
 237         return ERROR_OK;
 238 }
 239
 240 int target_process_reset(struct command_context_s *cmd_ctx)
 241 {
 242         int retval = ERROR_OK;
 243         target_t *target;
 244
 245         target = targets;
 246         while (target)
 247         {
 248                 target->type->assert_reset(target);
 249                 target = target->next;
 250         }
 251         jtag_execute_queue();
 252
 253         /* request target halt if necessary, and schedule further action */
 254         target = targets;
 255         while (target)
 256         {
 257                 switch (target->reset_mode)
 258                 {
 259                         case RESET_RUN:
 260                                 /* nothing to do if target just wants to be run */
 261                                 break;
 262                         case RESET_RUN_AND_HALT:
 263                                 /* schedule halt */
 264                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 265                                 break;
 266                         case RESET_RUN_AND_INIT:
 267                                 /* schedule halt */
 268                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 269                                 target_register_event_callback(target_init_handler, cmd_ctx);
 270                                 break;
 271                         case RESET_HALT:
 272                                 target->type->halt(target);
 273                                 break;
 274                         case RESET_INIT:
 275                                 target->type->halt(target);
 276                                 target_register_event_callback(target_init_handler, cmd_ctx);
 277                                 break;
 278                         default:
 279                                 ERROR("BUG: unknown target->reset_mode");
 280                 }
 281                 target = target->next;
 282         }
 283
 284         target = targets;
 285         while (target)
 286         {
 287                 target->type->deassert_reset(target);
 288                 target = target->next;
 289         }
 290         jtag_execute_queue();
 291
 292         return retval;
 293 }
 294
 295 int target_init(struct command_context_s *cmd_ctx)
 296 {
 297         target_t *target = targets;
 298
 299         while (target)
 300         {
 301                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 302                 {
 303                         ERROR("target '%s' init failed", target->type->name);
 304                         exit(-1);
 305                 }
 306                 target = target->next;
 307         }
 308
 309         if (targets)
 310         {
 311                 target_register_user_commands(cmd_ctx);
 312                 target_register_timer_callback(handle_target, 100, 1, NULL);
 313         }
 314
 315         if (startup_mode == DAEMON_RESET)
 316                 target_process_reset(cmd_ctx);
 317
 318         return ERROR_OK;
 319 }
 320
 321 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 322 {
 323         target_event_callback_t **callbacks_p = &target_event_callbacks;
 324
 325         if (callback == NULL)
 326         {
 327                 return ERROR_INVALID_ARGUMENTS;
 328         }
 329
 330         if (*callbacks_p)
 331         {
 332                 while ((*callbacks_p)->next)
 333                         callbacks_p = &((*callbacks_p)->next);
 334                 callbacks_p = &((*callbacks_p)->next);
 335         }
 336
 337         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 338         (*callbacks_p)->callback = callback;
 339         (*callbacks_p)->priv = priv;
 340         (*callbacks_p)->next = NULL;
 341
 342         return ERROR_OK;
 343 }
 344
 345 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 346 {
 347         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 348         struct timeval now;
 349
 350         if (callback == NULL)
 351         {
 352                 return ERROR_INVALID_ARGUMENTS;
 353         }
 354
 355         if (*callbacks_p)
 356         {
 357                 while ((*callbacks_p)->next)
 358                         callbacks_p = &((*callbacks_p)->next);
 359                 callbacks_p = &((*callbacks_p)->next);
 360         }
 361
 362         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 363         (*callbacks_p)->callback = callback;
 364         (*callbacks_p)->periodic = periodic;
 365         (*callbacks_p)->time_ms = time_ms;
 366
 367         gettimeofday(&now, NULL);
 368         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 369         time_ms -= (time_ms % 1000);
 370         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 371         if ((*callbacks_p)->when.tv_usec > 1000000)
 372         {
 373                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 374                 (*callbacks_p)->when.tv_sec += 1;
 375         }
 376
 377         (*callbacks_p)->priv = priv;
 378         (*callbacks_p)->next = NULL;
 379
 380         return ERROR_OK;
 381 }
 382
 383 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 384 {
 385         target_event_callback_t **p = &target_event_callbacks;
 386         target_event_callback_t *c = target_event_callbacks;
 387
 388         if (callback == NULL)
 389         {
 390                 return ERROR_INVALID_ARGUMENTS;
 391         }
 392
 393         while (c)
 394         {
 395                 target_event_callback_t *next = c->next;
 396                 if ((c->callback == callback) && (c->priv == priv))
 397                 {
 398                         *p = next;
 399                         free(c);
 400                         return ERROR_OK;
 401                 }
 402                 else
 403                         p = &(c->next);
 404                 c = next;
 405         }
 406
 407         return ERROR_OK;
 408 }
 409
 410 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 411 {
 412         target_timer_callback_t **p = &target_timer_callbacks;
 413         target_timer_callback_t *c = target_timer_callbacks;
 414
 415         if (callback == NULL)
 416         {
 417                 return ERROR_INVALID_ARGUMENTS;
 418         }
 419
 420         while (c)
 421         {
 422                 target_timer_callback_t *next = c->next;
 423                 if ((c->callback == callback) && (c->priv == priv))
 424                 {
 425                         *p = next;
 426                         free(c);
 427                         return ERROR_OK;
 428                 }
 429                 else
 430                         p = &(c->next);
 431                 c = next;
 432         }
 433
 434         return ERROR_OK;
 435 }
 436
 437 int target_call_event_callbacks(target_t *target, enum target_event event)
 438 {
 439         target_event_callback_t *callback = target_event_callbacks;
 440         target_event_callback_t *next_callback;
 441
 442         DEBUG("target event %i", event);
 443
 444         while (callback)
 445         {
 446                 next_callback = callback->next;
 447                 callback->callback(target, event, callback->priv);
 448                 callback = next_callback;
 449         }
 450
 451         return ERROR_OK;
 452 }
 453
 454 int target_call_timer_callbacks()
 455 {
 456         target_timer_callback_t *callback = target_timer_callbacks;
 457         target_timer_callback_t *next_callback;
 458         struct timeval now;
 459
 460         gettimeofday(&now, NULL);
 461
 462         while (callback)
 463         {
 464                 next_callback = callback->next;
 465
 466                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 467                         || (now.tv_sec > callback->when.tv_sec))
 468                 {
 469                         callback->callback(callback->priv);
 470                         if (callback->periodic)
 471                         {
 472                                 int time_ms = callback->time_ms;
 473                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 474                                 time_ms -= (time_ms % 1000);
 475                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 476                                 if (callback->when.tv_usec > 1000000)
 477                                 {
 478                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 479                                         callback->when.tv_sec += 1;
 480                                 }
 481                         }
 482                         else
 483                                 target_unregister_timer_callback(callback->callback, callback->priv);
 484                 }
 485
 486                 callback = next_callback;
 487         }
 488
 489         return ERROR_OK;
 490 }
 491
 492 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 493 {
 494         working_area_t *c = target->working_areas;
 495         working_area_t *new_wa = NULL;
 496
 497         /* only allocate multiples of 4 byte */
 498         if (size % 4)
 499         {
 500                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 501                 size = CEIL(size, 4);
 502         }
 503
 504         /* see if there's already a matching working area */
 505         while (c)
 506         {
 507                 if ((c->free) && (c->size == size))
 508                 {
 509                         new_wa = c;
 510                         break;
 511                 }
 512                 c = c->next;
 513         }
 514
 515         /* if not, allocate a new one */
 516         if (!new_wa)
 517         {
 518                 working_area_t **p = &target->working_areas;
 519                 u32 first_free = target->working_area;
 520                 u32 free_size = target->working_area_size;
 521
 522                 DEBUG("allocating new working area");
 523
 524                 c = target->working_areas;
 525                 while (c)
 526                 {
 527                         first_free += c->size;
 528                         free_size -= c->size;
 529                         p = &c->next;
 530                         c = c->next;
 531                 }
 532
 533                 if (free_size < size)
 534                 {
 535                         WARNING("not enough working area available");
 536                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 537                 }
 538
 539                 new_wa = malloc(sizeof(working_area_t));
 540                 new_wa->next = NULL;
 541                 new_wa->size = size;
 542                 new_wa->address = first_free;
 543
 544                 if (target->backup_working_area)
 545                 {
 546                         new_wa->backup = malloc(new_wa->size);
 547                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 548                 }
 549                 else
 550                 {
 551                         new_wa->backup = NULL;
 552                 }
 553
 554                 /* put new entry in list */
 555                 *p = new_wa;
 556         }
 557
 558         /* mark as used, and return the new (reused) area */
 559         new_wa->free = 0;
 560         *area = new_wa;
 561
 562         /* user pointer */
 563         new_wa->user = area;
 564
 565         return ERROR_OK;
 566 }
 567
 568 int target_free_working_area(struct target_s *target, working_area_t *area)
 569 {
 570         if (area->free)
 571                 return ERROR_OK;
 572
 573         if (target->backup_working_area)
 574                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 575
 576         area->free = 1;
 577
 578         /* mark user pointer invalid */
 579         *area->user = NULL;
 580         area->user = NULL;
 581
 582         return ERROR_OK;
 583 }
 584
 585 int target_free_all_working_areas(struct target_s *target)
 586 {
 587         working_area_t *c = target->working_areas;
 588
 589         while (c)
 590         {
 591                 working_area_t *next = c->next;
 592                 target_free_working_area(target, c);
 593
 594                 if (c->backup)
 595                         free(c->backup);
 596
 597                 free(c);
 598
 599                 c = next;
 600         }
 601
 602         target->working_areas = NULL;
 603
 604         return ERROR_OK;
 605 }
 606
 607 int target_register_commands(struct command_context_s *cmd_ctx)
 608 {
 609         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 610         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 611         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 612         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 613         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 614         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 615
 616         return ERROR_OK;
 617 }
 618
 619 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 620 {
 621         int retval;
 622
 623         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 624
 625         /* handle writes of less than 4 byte */
 626         if (size < 4)
 627         {
 628                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 629                         return retval;
 630         }
 631
 632         /* handle unaligned head bytes */
 633         if (address % 4)
 634         {
 635                 int unaligned = 4 - (address % 4);
 636
 637                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 638                         return retval;
 639
 640                 buffer += unaligned;
 641                 address += unaligned;
 642                 size -= unaligned;
 643         }
 644
 645         /* handle aligned words */
 646         if (size >= 4)
 647         {
 648                 int aligned = size - (size % 4);
 649
 650                 /* use bulk writes above a certain limit. This may have to be changed */
 651                 if (aligned > 128)
 652                 {
 653                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 654                                 return retval;
 655                 }
 656                 else
 657                 {
 658                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 659                                 return retval;
 660                 }
 661
 662                 buffer += aligned;
 663                 address += aligned;
 664                 size -= aligned;
 665         }
 666
 667         /* handle tail writes of less than 4 bytes */
 668         if (size > 0)
 669         {
 670                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 671                         return retval;
 672         }
 673
 674         return ERROR_OK;
 675 }
 676
 677 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 678 {
 679         int retval;
 680
 681         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 682
 683         /* handle reads of less than 4 byte */
 684         if (size < 4)
 685         {
 686                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 687                         return retval;
 688         }
 689
 690         /* handle unaligned head bytes */
 691         if (address % 4)
 692         {
 693                 int unaligned = 4 - (address % 4);
 694
 695                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 696                         return retval;
 697
 698                 buffer += unaligned;
 699                 address += unaligned;
 700                 size -= unaligned;
 701         }
 702
 703         /* handle aligned words */
 704         if (size >= 4)
 705         {
 706                 int aligned = size - (size % 4);
 707
 708                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 709                         return retval;
 710
 711                 buffer += aligned;
 712                 address += aligned;
 713                 size -= aligned;
 714         }
 715
 716         /* handle tail writes of less than 4 bytes */
 717         if (size > 0)
 718         {
 719                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 720                         return retval;
 721         }
 722
 723         return ERROR_OK;
 724 }
 725
 726 void target_read_u32(struct target_s *target, u32 address, u32 *value)
 727 {
 728         u8 value_buf[4];
 729
 730         target->type->read_memory(target, address, 4, 1, value_buf);
 731
 732         *value = target_buffer_get_u32(target, value_buf);
 733 }
 734
 735 void target_read_u16(struct target_s *target, u32 address, u16 *value)
 736 {
 737         u8 value_buf[2];
 738
 739         target->type->read_memory(target, address, 2, 1, value_buf);
 740
 741         *value = target_buffer_get_u16(target, value_buf);
 742 }
 743
 744 void target_read_u8(struct target_s *target, u32 address, u8 *value)
 745 {
 746         target->type->read_memory(target, address, 1, 1, value);
 747 }
 748
 749 void target_write_u32(struct target_s *target, u32 address, u32 value)
 750 {
 751         u8 value_buf[4];
 752
 753         target_buffer_set_u32(target, value_buf, value);
 754         target->type->write_memory(target, address, 4, 1, value_buf);
 755 }
 756
 757 void target_write_u16(struct target_s *target, u32 address, u16 value)
 758 {
 759         u8 value_buf[2];
 760
 761         target_buffer_set_u16(target, value_buf, value);
 762         target->type->write_memory(target, address, 2, 1, value_buf);
 763 }
 764
 765 void target_write_u8(struct target_s *target, u32 address, u8 value)
 766 {
 767         target->type->read_memory(target, address, 1, 1, &value);
 768 }
 769
 770 int target_register_user_commands(struct command_context_s *cmd_ctx)
 771 {
 772         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 773         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 774         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt");
 775         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 776         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 777         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 778         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 779         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 780
 781         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 782         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 783         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 784
 785         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 786         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 787         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 788
 789         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 790         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 791         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 792         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 793
 794         register_command(cmd_ctx,  NULL, "load_binary", handle_load_binary_command, COMMAND_EXEC, "load binary <file> <address>");
 795         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_binary_command, COMMAND_EXEC, "dump binary <file> <address> <size>");
 796
 797         return ERROR_OK;
 798 }
 799
 800 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 801 {
 802         target_t *target = targets;
 803         int count = 0;
 804
 805         if (argc == 1)
 806         {
 807                 int num = strtoul(args[0], NULL, 0);
 808
 809                 while (target)
 810                 {
 811                         count++;
 812                         target = target->next;
 813                 }
 814
 815                 if (num < count)
 816                         cmd_ctx->current_target = num;
 817                 else
 818                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 819
 820                 return ERROR_OK;
 821         }
 822
 823         while (target)
 824         {
 825                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 826                 target = target->next;
 827         }
 828
 829         return ERROR_OK;
 830 }
 831
 832 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 833 {
 834         int i;
 835         int found = 0;
 836
 837         if (argc < 3)
 838         {
 839                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 840                 exit(-1);
 841         }
 842
 843         /* search for the specified target */
 844         if (args[0] && (args[0][0] != 0))
 845         {
 846                 for (i = 0; target_types[i]; i++)
 847                 {
 848                         if (strcmp(args[0], target_types[i]->name) == 0)
 849                         {
 850                                 target_t **last_target_p = &targets;
 851
 852                                 /* register target specific commands */
 853                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 854                                 {
 855                                         ERROR("couldn't register '%s' commands", args[0]);
 856                                         exit(-1);
 857                                 }
 858
 859                                 if (*last_target_p)
 860                                 {
 861                                         while ((*last_target_p)->next)
 862                                                 last_target_p = &((*last_target_p)->next);
 863                                         last_target_p = &((*last_target_p)->next);
 864                                 }
 865
 866                                 *last_target_p = malloc(sizeof(target_t));
 867
 868                                 (*last_target_p)->type = target_types[i];
 869
 870                                 if (strcmp(args[1], "big") == 0)
 871                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 872                                 else if (strcmp(args[1], "little") == 0)
 873                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 874                                 else
 875                                 {
 876                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 877                                         exit(-1);
 878                                 }
 879
 880                                 /* what to do on a target reset */
 881                                 if (strcmp(args[2], "reset_halt") == 0)
 882                                         (*last_target_p)->reset_mode = RESET_HALT;
 883                                 else if (strcmp(args[2], "reset_run") == 0)
 884                                         (*last_target_p)->reset_mode = RESET_RUN;
 885                                 else if (strcmp(args[2], "reset_init") == 0)
 886                                         (*last_target_p)->reset_mode = RESET_INIT;
 887                                 else if (strcmp(args[2], "run_and_halt") == 0)
 888                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 889                                 else if (strcmp(args[2], "run_and_init") == 0)
 890                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 891                                 else
 892                                 {
 893                                         ERROR("unknown target startup mode %s", args[2]);
 894                                         exit(-1);
 895                                 }
 896                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 897
 898                                 (*last_target_p)->reset_script = NULL;
 899                                 (*last_target_p)->post_halt_script = NULL;
 900                                 (*last_target_p)->pre_resume_script = NULL;
 901
 902                                 (*last_target_p)->working_area = 0x0;
 903                                 (*last_target_p)->working_area_size = 0x0;
 904                                 (*last_target_p)->working_areas = NULL;
 905                                 (*last_target_p)->backup_working_area = 0;
 906
 907                                 (*last_target_p)->state = TARGET_UNKNOWN;
 908                                 (*last_target_p)->reg_cache = NULL;
 909                                 (*last_target_p)->breakpoints = NULL;
 910                                 (*last_target_p)->watchpoints = NULL;
 911                                 (*last_target_p)->next = NULL;
 912                                 (*last_target_p)->arch_info = NULL;
 913
 914                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 915
 916                                 found = 1;
 917                                 break;
 918                         }
 919                 }
 920         }
 921
 922         /* no matching target found */
 923         if (!found)
 924         {
 925                 ERROR("target '%s' not found", args[0]);
 926                 exit(-1);
 927         }
 928
 929         return ERROR_OK;
 930 }
 931
 932 /* usage: target_script <target#> <event> <script_file> */
 933 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 934 {
 935         target_t *target = NULL;
 936
 937         if (argc < 3)
 938         {
 939                 ERROR("incomplete target_script command");
 940                 exit(-1);
 941         }
 942
 943         target = get_target_by_num(strtoul(args[0], NULL, 0));
 944
 945         if (!target)
 946         {
 947                 ERROR("target number '%s' not defined", args[0]);
 948                 exit(-1);
 949         }
 950
 951         if (strcmp(args[1], "reset") == 0)
 952         {
 953                 if (target->reset_script)
 954                         free(target->reset_script);
 955                 target->reset_script = strdup(args[2]);
 956         }
 957         else if (strcmp(args[1], "post_halt") == 0)
 958         {
 959                 if (target->post_halt_script)
 960                         free(target->post_halt_script);
 961                 target->post_halt_script = strdup(args[2]);
 962         }
 963         else if (strcmp(args[1], "pre_resume") == 0)
 964         {
 965                 if (target->pre_resume_script)
 966                         free(target->pre_resume_script);
 967                 target->pre_resume_script = strdup(args[2]);
 968         }
 969         else
 970         {
 971                 ERROR("unknown event type: '%s", args[1]);
 972                 exit(-1);
 973         }
 974
 975         return ERROR_OK;
 976 }
 977
 978 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 979 {
 980         target_t *target = NULL;
 981
 982         if (argc < 2)
 983         {
 984                 ERROR("incomplete run_and_halt_time command");
 985                 exit(-1);
 986         }
 987
 988         target = get_target_by_num(strtoul(args[0], NULL, 0));
 989
 990         if (!target)
 991         {
 992                 ERROR("target number '%s' not defined", args[0]);
 993                 exit(-1);
 994         }
 995
 996         target->run_and_halt_time = strtoul(args[1], NULL, 0);
 997
 998         return ERROR_OK;
 999 }
1000
1001 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1002 {
1003         target_t *target = NULL;
1004
1005         if (argc < 4)
1006         {
1007                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1008                 exit(-1);
1009         }
1010
1011         target = get_target_by_num(strtoul(args[0], NULL, 0));
1012
1013         if (!target)
1014         {
1015                 ERROR("target number '%s' not defined", args[0]);
1016                 exit(-1);
1017         }
1018
1019         target->working_area = strtoul(args[1], NULL, 0);
1020         target->working_area_size = strtoul(args[2], NULL, 0);
1021
1022         if (strcmp(args[3], "backup") == 0)
1023         {
1024                 target->backup_working_area = 1;
1025         }
1026         else if (strcmp(args[3], "nobackup") == 0)
1027         {
1028                 target->backup_working_area = 0;
1029         }
1030         else
1031         {
1032                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1033                 exit(-1);
1034         }
1035
1036         return ERROR_OK;
1037 }
1038
1039
1040 /* process target state changes */
1041 int handle_target(void *priv)
1042 {
1043         int retval;
1044         target_t *target = targets;
1045
1046         while (target)
1047         {
1048                 /* only poll if target isn't already halted */
1049                 if (target->state != TARGET_HALTED)
1050                 {
1051                         if (target_continous_poll)
1052                                 if ((retval = target->type->poll(target)) < 0)
1053                                 {
1054                                         ERROR("couldn't poll target, exiting");
1055                                         exit(-1);
1056                                 }
1057                 }
1058
1059                 target = target->next;
1060         }
1061
1062         return ERROR_OK;
1063 }
1064
1065 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1066 {
1067         target_t *target;
1068         reg_t *reg = NULL;
1069         int count = 0;
1070         char *value;
1071
1072         DEBUG("");
1073
1074         target = get_current_target(cmd_ctx);
1075
1076         /* list all available registers for the current target */
1077         if (argc == 0)
1078         {
1079                 reg_cache_t *cache = target->reg_cache;
1080
1081                 count = 0;
1082                 while(cache)
1083                 {
1084                         int i;
1085                         for (i = 0; i < cache->num_regs; i++)
1086                         {
1087                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1088                                 command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)", count++, cache->reg_list[i].name, cache->reg_list[i].size, value, cache->reg_list[i].dirty, cache->reg_list[i].valid);
1089                                 free(value);
1090                         }
1091                         cache = cache->next;
1092                 }
1093
1094                 return ERROR_OK;
1095         }
1096
1097         /* access a single register by its ordinal number */
1098         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1099         {
1100                 int num = strtoul(args[0], NULL, 0);
1101                 reg_cache_t *cache = target->reg_cache;
1102
1103                 count = 0;
1104                 while(cache)
1105                 {
1106                         int i;
1107                         for (i = 0; i < cache->num_regs; i++)
1108                         {
1109                                 if (count++ == num)
1110                                 {
1111                                         reg = &cache->reg_list[i];
1112                                         break;
1113                                 }
1114                         }
1115                         if (reg)
1116                                 break;
1117                         cache = cache->next;
1118                 }
1119
1120                 if (!reg)
1121                 {
1122                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1123                         return ERROR_OK;
1124                 }
1125         } else /* access a single register by its name */
1126         {
1127                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1128
1129                 if (!reg)
1130                 {
1131                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1132                         return ERROR_OK;
1133                 }
1134         }
1135
1136         /* display a register */
1137         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1138         {
1139                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1140                         reg->valid = 0;
1141
1142                 if (reg->valid == 0)
1143                 {
1144                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1145                         if (arch_type == NULL)
1146                         {
1147                                 ERROR("BUG: encountered unregistered arch type");
1148                                 return ERROR_OK;
1149                         }
1150                         arch_type->get(reg);
1151                 }
1152                 value = buf_to_str(reg->value, reg->size, 16);
1153                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1154                 free(value);
1155                 return ERROR_OK;
1156         }
1157
1158         /* set register value */
1159         if (argc == 2)
1160         {
1161                 u8 *buf = malloc(CEIL(reg->size, 8));
1162                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1163
1164                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1165                 if (arch_type == NULL)
1166                 {
1167                         ERROR("BUG: encountered unregistered arch type");
1168                         return ERROR_OK;
1169                 }
1170
1171                 arch_type->set(reg, buf);
1172
1173                 value = buf_to_str(reg->value, reg->size, 16);
1174                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1175                 free(value);
1176
1177                 free(buf);
1178
1179                 return ERROR_OK;
1180         }
1181
1182         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1183
1184         return ERROR_OK;
1185 }
1186
1187 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1188 {
1189         target_t *target = get_current_target(cmd_ctx);
1190         char buffer[512];
1191
1192         if (argc == 0)
1193         {
1194                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1195                 if (target->state == TARGET_HALTED)
1196                 {
1197                         target->type->arch_state(target, buffer, 512);
1198                         buffer[511] = 0;
1199                         command_print(cmd_ctx, "%s", buffer);
1200                 }
1201         }
1202         else
1203         {
1204                 if (strcmp(args[0], "on") == 0)
1205                 {
1206                         target_continous_poll = 1;
1207                 }
1208                 else if (strcmp(args[0], "off") == 0)
1209                 {
1210                         target_continous_poll = 0;
1211                 }
1212         }
1213
1214
1215         return ERROR_OK;
1216 }
1217
1218 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1219 {
1220         target_t *target = get_current_target(cmd_ctx);
1221         struct timeval timeout, now;
1222
1223         gettimeofday(&timeout, NULL);
1224         timeval_add_time(&timeout, 5, 0);
1225
1226         command_print(cmd_ctx, "waiting for target halted...");
1227
1228         while(target->type->poll(target))
1229         {
1230                 if (target->state == TARGET_HALTED)
1231                 {
1232                         command_print(cmd_ctx, "target halted");
1233                         break;
1234                 }
1235                 target_call_timer_callbacks();
1236
1237                 gettimeofday(&now, NULL);
1238                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1239                 {
1240                         command_print(cmd_ctx, "timed out while waiting for target halt");
1241                         ERROR("timed out while waiting for target halt");
1242                         break;
1243                 }
1244         }
1245
1246         return ERROR_OK;
1247 }
1248
1249 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1250 {
1251         int retval;
1252         target_t *target = get_current_target(cmd_ctx);
1253
1254         DEBUG("");
1255
1256         command_print(cmd_ctx, "requesting target halt...");
1257
1258         if ((retval = target->type->halt(target)) != ERROR_OK)
1259         {
1260                 switch (retval)
1261                 {
1262                         case ERROR_TARGET_ALREADY_HALTED:
1263                                 command_print(cmd_ctx, "target already halted");
1264                                 break;
1265                         case ERROR_TARGET_TIMEOUT:
1266                                 command_print(cmd_ctx, "target timed out... shutting down");
1267                                 exit(-1);
1268                         default:
1269                                 command_print(cmd_ctx, "unknown error... shutting down");
1270                                 exit(-1);
1271                 }
1272         }
1273
1274         return ERROR_OK;
1275
1276 }
1277
1278 /* what to do on daemon startup */
1279 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1280 {
1281         if (argc == 1)
1282         {
1283                 if (strcmp(args[0], "attach") == 0)
1284                 {
1285                         startup_mode = DAEMON_ATTACH;
1286                         return ERROR_OK;
1287                 }
1288                 else if (strcmp(args[0], "reset") == 0)
1289                 {
1290                         startup_mode = DAEMON_RESET;
1291                         return ERROR_OK;
1292                 }
1293         }
1294
1295         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1296         return ERROR_OK;
1297
1298 }
1299
1300 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1301 {
1302         target_t *target = get_current_target(cmd_ctx);
1303         int retval;
1304
1305         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1306
1307         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1308         {
1309                 switch (retval)
1310                 {
1311                         case ERROR_TARGET_TIMEOUT:
1312                                 command_print(cmd_ctx, "target timed out... shutting down");
1313                                 exit(-1);
1314                         default:
1315                                 command_print(cmd_ctx, "unknown error... shutting down");
1316                                 exit(-1);
1317                 }
1318         }
1319
1320         return ERROR_OK;
1321 }
1322
1323 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1324 {
1325         target_t *target = get_current_target(cmd_ctx);
1326         enum target_reset_mode reset_mode = RESET_RUN;
1327
1328         DEBUG("");
1329
1330         if (argc >= 1)
1331         {
1332                 if (strcmp("run", args[0]) == 0)
1333                         reset_mode = RESET_RUN;
1334                 else if (strcmp("halt", args[0]) == 0)
1335                         reset_mode = RESET_HALT;
1336                 else if (strcmp("init", args[0]) == 0)
1337                         reset_mode = RESET_INIT;
1338                 else if (strcmp("run_and_halt", args[0]) == 0)
1339                 {
1340                         reset_mode = RESET_RUN_AND_HALT;
1341                         if (argc >= 2)
1342                         {
1343                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1344                         }
1345                 }
1346                 else if (strcmp("run_and_init", args[0]) == 0)
1347                 {
1348                         reset_mode = RESET_RUN_AND_INIT;
1349                         if (argc >= 2)
1350                         {
1351                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1352                         }
1353                 }
1354                 else
1355                 {
1356                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1357                         return ERROR_OK;
1358                 }
1359                 target->reset_mode = reset_mode;
1360         }
1361
1362         target_process_reset(cmd_ctx);
1363
1364         return ERROR_OK;
1365 }
1366
1367 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1368 {
1369         int retval;
1370         target_t *target = get_current_target(cmd_ctx);
1371
1372         DEBUG("");
1373
1374         if (argc == 0)
1375                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1376         else if (argc == 1)
1377                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1378         else
1379         {
1380                 command_print(cmd_ctx, "usage: resume [address]");
1381                 return ERROR_OK;
1382         }
1383
1384         if (retval != ERROR_OK)
1385         {
1386                 switch (retval)
1387                 {
1388                         case ERROR_TARGET_NOT_HALTED:
1389                                 command_print(cmd_ctx, "target not halted");
1390                                 break;
1391                         default:
1392                                 command_print(cmd_ctx, "unknown error... shutting down");
1393                                 exit(-1);
1394                 }
1395         }
1396
1397         return ERROR_OK;
1398 }
1399
1400 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1401 {
1402         target_t *target = get_current_target(cmd_ctx);
1403
1404         DEBUG("");
1405
1406         if (argc == 0)
1407                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1408
1409         if (argc == 1)
1410                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1411
1412         return ERROR_OK;
1413 }
1414
1415 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1416 {
1417         int count = 1;
1418         int size = 4;
1419         u32 address = 0;
1420         int i;
1421
1422         char output[128];
1423         int output_len;
1424
1425         int retval;
1426
1427         u8 *buffer;
1428         target_t *target = get_current_target(cmd_ctx);
1429
1430         if (argc < 1)
1431                 return ERROR_OK;
1432
1433         if (argc == 2)
1434                 count = strtoul(args[1], NULL, 0);
1435
1436         address = strtoul(args[0], NULL, 0);
1437
1438
1439         switch (cmd[2])
1440         {
1441                 case 'w':
1442                         size = 4;
1443                         break;
1444                 case 'h':
1445                         size = 2;
1446                         break;
1447                 case 'b':
1448                         size = 1;
1449                         break;
1450                 default:
1451                         return ERROR_OK;
1452         }
1453
1454         buffer = calloc(count, size);
1455         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1456         {
1457                 switch (retval)
1458                 {
1459                         case ERROR_TARGET_UNALIGNED_ACCESS:
1460                                 command_print(cmd_ctx, "error: address not aligned");
1461                                 break;
1462                         case ERROR_TARGET_NOT_HALTED:
1463                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1464                                 break;
1465                         case ERROR_TARGET_DATA_ABORT:
1466                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1467                                 break;
1468                         default:
1469                                 command_print(cmd_ctx, "error: unknown error");
1470                                 break;
1471                 }
1472                 return ERROR_OK;
1473         }
1474
1475         output_len = 0;
1476
1477         for (i = 0; i < count; i++)
1478         {
1479                 if (i%8 == 0)
1480                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1481
1482                 switch (size)
1483                 {
1484                         case 4:
1485                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1486                                 break;
1487                         case 2:
1488                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1489                                 break;
1490                         case 1:
1491                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1492                                 break;
1493                 }
1494
1495                 if ((i%8 == 7) || (i == count - 1))
1496                 {
1497                         command_print(cmd_ctx, output);
1498                         output_len = 0;
1499                 }
1500         }
1501
1502         free(buffer);
1503
1504         return ERROR_OK;
1505 }
1506
1507 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1508 {
1509         u32 address = 0;
1510         u32 value = 0;
1511         int retval;
1512         target_t *target = get_current_target(cmd_ctx);
1513         u8 value_buf[4];
1514
1515         if (argc < 2)
1516                 return ERROR_OK;
1517
1518         address = strtoul(args[0], NULL, 0);
1519         value = strtoul(args[1], NULL, 0);
1520
1521         switch (cmd[2])
1522         {
1523                 case 'w':
1524                         target_buffer_set_u32(target, value_buf, value);
1525                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1526                         break;
1527                 case 'h':
1528                         target_buffer_set_u16(target, value_buf, value);
1529                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1530                         break;
1531                 case 'b':
1532                         value_buf[0] = value;
1533                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1534                         break;
1535                 default:
1536                         return ERROR_OK;
1537         }
1538
1539         switch (retval)
1540         {
1541                 case ERROR_TARGET_UNALIGNED_ACCESS:
1542                         command_print(cmd_ctx, "error: address not aligned");
1543                         break;
1544                 case ERROR_TARGET_DATA_ABORT:
1545                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1546                         break;
1547                 case ERROR_TARGET_NOT_HALTED:
1548                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1549                         break;
1550                 case ERROR_OK:
1551                         break;
1552                 default:
1553                         command_print(cmd_ctx, "error: unknown error");
1554                         break;
1555         }
1556
1557         return ERROR_OK;
1558
1559 }
1560
1561 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1562 {
1563         FILE *binary;
1564         u32 address;
1565         struct stat binary_stat;
1566         u32 binary_size;
1567
1568         u8 *buffer;
1569         u32 buf_cnt;
1570
1571         struct timeval start, end, duration;
1572
1573         target_t *target = get_current_target(cmd_ctx);
1574
1575         if (argc != 2)
1576         {
1577                 command_print(cmd_ctx, "usage: load_binary <filename> <address>");
1578                 return ERROR_OK;
1579         }
1580
1581         address = strtoul(args[1], NULL, 0);
1582
1583         if (stat(args[0], &binary_stat) == -1)
1584         {
1585                 ERROR("couldn't stat() %s: %s", args[0], strerror(errno));
1586                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1587                 return ERROR_OK;
1588         }
1589
1590         if (!(binary = fopen(args[0], "rb")))
1591         {
1592                 ERROR("couldn't open %s: %s", args[0], strerror(errno));
1593                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1594                 return ERROR_OK;
1595         }
1596
1597         buffer = malloc(128 * 1024);
1598
1599         gettimeofday(&start, NULL);
1600
1601         binary_size = binary_stat.st_size;
1602         while (binary_size > 0)
1603         {
1604                 buf_cnt = fread(buffer, 1, 128*1024, binary);
1605                 target_write_buffer(target, address, buf_cnt, buffer);
1606                 address += buf_cnt;
1607                 binary_size -= buf_cnt;
1608         }
1609
1610         gettimeofday(&end, NULL);
1611
1612         free(buffer);
1613
1614         timeval_subtract(&duration, &end, &start);
1615         command_print(cmd_ctx, "downloaded %lli byte in %is %ius", (long long) binary_stat.st_size, duration.tv_sec, duration.tv_usec);
1616
1617         fclose(binary);
1618
1619         return ERROR_OK;
1620
1621 }
1622
1623 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1624 {
1625         FILE *binary;
1626         u32 address;
1627         u32 size;
1628         u8 buffer[560];
1629
1630         struct timeval start, end, duration;
1631
1632         target_t *target = get_current_target(cmd_ctx);
1633
1634         if (argc != 3)
1635         {
1636                 command_print(cmd_ctx, "usage: dump_binary <filename> <address> <size>");
1637                 return ERROR_OK;
1638         }
1639
1640         address = strtoul(args[1], NULL, 0);
1641         size = strtoul(args[2], NULL, 0);
1642
1643         if (!(binary = fopen(args[0], "wb")))
1644         {
1645                 ERROR("couldn't open %s for writing: %s", args[0], strerror(errno));
1646                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1647                 return ERROR_OK;
1648         }
1649
1650         if ((address & 3) || (size & 3))
1651         {
1652                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1653                 return ERROR_OK;
1654         }
1655
1656         gettimeofday(&start, NULL);
1657
1658         while (size > 0)
1659         {
1660                 u32 this_run_size = (size > 560) ? 560 : size;
1661                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1662                 fwrite(buffer, 1, this_run_size, binary);
1663                 size -= this_run_size;
1664                 address += this_run_size;
1665         }
1666
1667         fclose(binary);
1668
1669         gettimeofday(&end, NULL);
1670
1671         timeval_subtract(&duration, &end, &start);
1672         command_print(cmd_ctx, "dumped %i byte in %is %ius", strtoul(args[2], NULL, 0), duration.tv_sec, duration.tv_usec);
1673
1674         return ERROR_OK;
1675
1676 }
1677
1678 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1679 {
1680         int retval;
1681         target_t *target = get_current_target(cmd_ctx);
1682
1683         if (argc == 0)
1684         {
1685                 breakpoint_t *breakpoint = target->breakpoints;
1686
1687                 while (breakpoint)
1688                 {
1689                         if (breakpoint->type == BKPT_SOFT)
1690                         {
1691                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
1692                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1693                                 free(buf);
1694                         }
1695                         else
1696                         {
1697                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1698                         }
1699                         breakpoint = breakpoint->next;
1700                 }
1701         }
1702         else if (argc >= 2)
1703         {
1704                 int hw = BKPT_SOFT;
1705                 u32 length = 0;
1706
1707                 length = strtoul(args[1], NULL, 0);
1708
1709                 if (argc >= 3)
1710                         if (strcmp(args[2], "hw") == 0)
1711                                 hw = BKPT_HARD;
1712
1713                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1714                 {
1715                         switch (retval)
1716                         {
1717                                 case ERROR_TARGET_NOT_HALTED:
1718                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1719                                         break;
1720                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1721                                         command_print(cmd_ctx, "no more breakpoints available");
1722                                         break;
1723                                 default:
1724                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1725                                         break;
1726                         }
1727                 }
1728                 else
1729                 {
1730                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
1731                 }
1732         }
1733         else
1734         {
1735                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
1736         }
1737
1738         return ERROR_OK;
1739 }
1740
1741 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1742 {
1743         target_t *target = get_current_target(cmd_ctx);
1744
1745         if (argc > 0)
1746                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1747
1748         return ERROR_OK;
1749 }
1750
1751 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1752 {
1753         target_t *target = get_current_target(cmd_ctx);
1754
1755         if (argc == 0)
1756         {
1757                 watchpoint_t *watchpoint = target->watchpoints;
1758
1759                 while (watchpoint)
1760                 {
1761                         command_print(cmd_ctx, "address: 0x%8.8x, mask: 0x%8.8x, r/w/a: %i, value: 0x%8.8x, mask: 0x%8.8x", watchpoint->address, watchpoint->length, watchpoint->rw, watchpoint->value, watchpoint->mask);
1762                         watchpoint = watchpoint->next;
1763                 }
1764         }
1765         else if (argc >= 2)
1766         {
1767                 enum watchpoint_rw type = WPT_ACCESS;
1768                 u32 data_value = 0x0;
1769                 u32 data_mask = 0xffffffff;
1770
1771                 if (argc >= 3)
1772                 {
1773                         switch(args[2][0])
1774                         {
1775                                 case 'r':
1776                                         type = WPT_READ;
1777                                         break;
1778                                 case 'w':
1779                                         type = WPT_WRITE;
1780                                         break;
1781                                 case 'a':
1782                                         type = WPT_ACCESS;
1783                                         break;
1784                                 default:
1785                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1786                                         return ERROR_OK;
1787                         }
1788                 }
1789                 if (argc >= 4)
1790                 {
1791                         data_value = strtoul(args[3], NULL, 0);
1792                 }
1793                 if (argc >= 5)
1794                 {
1795                         data_mask = strtoul(args[4], NULL, 0);
1796                 }
1797                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1798         }
1799         else
1800         {
1801                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1802         }
1803
1804         return ERROR_OK;
1805 }
1806
1807 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1808 {
1809         target_t *target = get_current_target(cmd_ctx);
1810
1811         if (argc > 0)
1812                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1813
1814         return ERROR_OK;
1815 }
1816