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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 #include "target_request.h"
  27
  28 #include "log.h"
  29 #include "configuration.h"
  30 #include "binarybuffer.h"
  31 #include "jtag.h"
  32
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <inttypes.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40 #include <errno.h>
  41
  42 #include <sys/time.h>
  43 #include <time.h>
  44
  45 #include <time_support.h>
  46
  47 #include <fileio.h>
  48 #include <image.h>
  49
  50 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  51
  52 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55
  56 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59
  60 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77
  78 /* targets
  79  */
  80 extern target_type_t arm7tdmi_target;
  81 extern target_type_t arm720t_target;
  82 extern target_type_t arm9tdmi_target;
  83 extern target_type_t arm920t_target;
  84 extern target_type_t arm966e_target;
  85 extern target_type_t arm926ejs_target;
  86 extern target_type_t xscale_target;
  87 extern target_type_t cortexm3_target;
  88
  89 target_type_t *target_types[] =
  90 {
  91         &arm7tdmi_target,
  92         &arm9tdmi_target,
  93         &arm920t_target,
  94         &arm720t_target,
  95         &arm966e_target,
  96         &arm926ejs_target,
  97         &xscale_target,
  98         &cortexm3_target,
  99         NULL,
 100 };
 101
 102 target_t *targets = NULL;
 103 target_event_callback_t *target_event_callbacks = NULL;
 104 target_timer_callback_t *target_timer_callbacks = NULL;
 105
 106 char *target_state_strings[] =
 107 {
 108         "unknown",
 109         "running",
 110         "halted",
 111         "reset",
 112         "debug_running",
 113 };
 114
 115 char *target_debug_reason_strings[] =
 116 {
 117         "debug request", "breakpoint", "watchpoint",
 118         "watchpoint and breakpoint", "single step",
 119         "target not halted"
 120 };
 121
 122 char *target_endianess_strings[] =
 123 {
 124         "big endian",
 125         "little endian",
 126 };
 127
 128 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 129
 130 static int target_continous_poll = 1;
 131
 132 /* read a u32 from a buffer in target memory endianness */
 133 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 134 {
 135         if (target->endianness == TARGET_LITTLE_ENDIAN)
 136                 return le_to_h_u32(buffer);
 137         else
 138                 return be_to_h_u32(buffer);
 139 }
 140
 141 /* read a u16 from a buffer in target memory endianness */
 142 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 143 {
 144         if (target->endianness == TARGET_LITTLE_ENDIAN)
 145                 return le_to_h_u16(buffer);
 146         else
 147                 return be_to_h_u16(buffer);
 148 }
 149
 150 /* write a u32 to a buffer in target memory endianness */
 151 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 152 {
 153         if (target->endianness == TARGET_LITTLE_ENDIAN)
 154                 h_u32_to_le(buffer, value);
 155         else
 156                 h_u32_to_be(buffer, value);
 157 }
 158
 159 /* write a u16 to a buffer in target memory endianness */
 160 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 161 {
 162         if (target->endianness == TARGET_LITTLE_ENDIAN)
 163                 h_u16_to_le(buffer, value);
 164         else
 165                 h_u16_to_be(buffer, value);
 166 }
 167
 168 /* returns a pointer to the n-th configured target */
 169 target_t* get_target_by_num(int num)
 170 {
 171         target_t *target = targets;
 172         int i = 0;
 173
 174         while (target)
 175         {
 176                 if (num == i)
 177                         return target;
 178                 target = target->next;
 179                 i++;
 180         }
 181
 182         return NULL;
 183 }
 184
 185 int get_num_by_target(target_t *query_target)
 186 {
 187         target_t *target = targets;
 188         int i = 0;
 189
 190         while (target)
 191         {
 192                 if (target == query_target)
 193                         return i;
 194                 target = target->next;
 195                 i++;
 196         }
 197
 198         return -1;
 199 }
 200
 201 target_t* get_current_target(command_context_t *cmd_ctx)
 202 {
 203         target_t *target = get_target_by_num(cmd_ctx->current_target);
 204
 205         if (target == NULL)
 206         {
 207                 ERROR("BUG: current_target out of bounds");
 208                 exit(-1);
 209         }
 210
 211         return target;
 212 }
 213
 214 /* Process target initialization, when target entered debug out of reset
 215  * the handler is unregistered at the end of this function, so it's only called once
 216  */
 217 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 218 {
 219         FILE *script;
 220         struct command_context_s *cmd_ctx = priv;
 221
 222         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 223         {
 224                 target_unregister_event_callback(target_init_handler, priv);
 225
 226                 script = fopen(target->reset_script, "r");
 227                 if (!script)
 228                 {
 229                         ERROR("couldn't open script file %s", target->reset_script);
 230                                 return ERROR_OK;
 231                 }
 232
 233                 INFO("executing reset script '%s'", target->reset_script);
 234                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 235                 fclose(script);
 236
 237                 jtag_execute_queue();
 238         }
 239
 240         return ERROR_OK;
 241 }
 242
 243 int target_run_and_halt_handler(void *priv)
 244 {
 245         target_t *target = priv;
 246
 247         target->type->halt(target);
 248
 249         return ERROR_OK;
 250 }
 251
 252 int target_process_reset(struct command_context_s *cmd_ctx)
 253 {
 254         int retval = ERROR_OK;
 255         target_t *target;
 256         struct timeval timeout, now;
 257
 258         /* prepare reset_halt where necessary */
 259         target = targets;
 260         while (target)
 261         {
 262                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 263                 {
 264                         switch (target->reset_mode)
 265                         {
 266                                 case RESET_HALT:
 267                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to RESET_RUN_AND_HALT");
 268                                         target->reset_mode = RESET_RUN_AND_HALT;
 269                                         break;
 270                                 case RESET_INIT:
 271                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to RESET_RUN_AND_INIT");
 272                                         target->reset_mode = RESET_RUN_AND_INIT;
 273                                         break;
 274                                 default:
 275                                         break;
 276                         }
 277                 }
 278                 switch (target->reset_mode)
 279                 {
 280                         case RESET_HALT:
 281                         case RESET_INIT:
 282                                 target->type->prepare_reset_halt(target);
 283                                 break;
 284                         default:
 285                                 break;
 286                 }
 287                 target = target->next;
 288         }
 289
 290         target = targets;
 291         while (target)
 292         {
 293                 target->type->assert_reset(target);
 294                 target = target->next;
 295         }
 296         jtag_execute_queue();
 297
 298         /* request target halt if necessary, and schedule further action */
 299         target = targets;
 300         while (target)
 301         {
 302                 switch (target->reset_mode)
 303                 {
 304                         case RESET_RUN:
 305                                 /* nothing to do if target just wants to be run */
 306                                 break;
 307                         case RESET_RUN_AND_HALT:
 308                                 /* schedule halt */
 309                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 310                                 break;
 311                         case RESET_RUN_AND_INIT:
 312                                 /* schedule halt */
 313                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 314                                 target_register_event_callback(target_init_handler, cmd_ctx);
 315                                 break;
 316                         case RESET_HALT:
 317                                 target->type->halt(target);
 318                                 break;
 319                         case RESET_INIT:
 320                                 target->type->halt(target);
 321                                 target_register_event_callback(target_init_handler, cmd_ctx);
 322                                 break;
 323                         default:
 324                                 ERROR("BUG: unknown target->reset_mode");
 325                 }
 326                 target = target->next;
 327         }
 328
 329         target = targets;
 330         while (target)
 331         {
 332                 target->type->deassert_reset(target);
 333                 target = target->next;
 334         }
 335         jtag_execute_queue();
 336
 337         /* Wait for reset to complete, maximum 5 seconds. */
 338         gettimeofday(&timeout, NULL);
 339         timeval_add_time(&timeout, 5, 0);
 340         for(;;)
 341         {
 342                 gettimeofday(&now, NULL);
 343
 344                 target_call_timer_callbacks();
 345
 346                 target = targets;
 347                 while (target)
 348                 {
 349                         target->type->poll(target);
 350                         if ((target->reset_mode == RESET_RUN_AND_INIT) || (target->reset_mode == RESET_RUN_AND_HALT))
 351                         {
 352                                 if (target->state != TARGET_HALTED)
 353                                 {
 354                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 355                                         {
 356                                                 command_print(cmd_ctx, "Timed out waiting for reset");
 357                                                 goto done;
 358                                         }
 359                                         usleep(100*1000); /* Do not eat all cpu */
 360                                         goto again;
 361                                 }
 362                         }
 363                         target = target->next;
 364                 }
 365                 /* All targets we're waiting for are halted */
 366                 break;
 367
 368                 again:;
 369         }
 370         done:
 371
 372
 373         /* We want any events to be processed before the prompt */
 374         target_call_timer_callbacks();
 375
 376         return retval;
 377 }
 378
 379 int target_init(struct command_context_s *cmd_ctx)
 380 {
 381         target_t *target = targets;
 382
 383         while (target)
 384         {
 385                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 386                 {
 387                         ERROR("target '%s' init failed", target->type->name);
 388                         exit(-1);
 389                 }
 390                 target = target->next;
 391         }
 392
 393         if (targets)
 394         {
 395                 target_register_user_commands(cmd_ctx);
 396                 target_register_timer_callback(handle_target, 100, 1, NULL);
 397         }
 398
 399         return ERROR_OK;
 400 }
 401
 402 int target_init_reset(struct command_context_s *cmd_ctx)
 403 {
 404         if (startup_mode == DAEMON_RESET)
 405                 target_process_reset(cmd_ctx);
 406
 407         return ERROR_OK;
 408 }
 409
 410 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 411 {
 412         target_event_callback_t **callbacks_p = &target_event_callbacks;
 413
 414         if (callback == NULL)
 415         {
 416                 return ERROR_INVALID_ARGUMENTS;
 417         }
 418
 419         if (*callbacks_p)
 420         {
 421                 while ((*callbacks_p)->next)
 422                         callbacks_p = &((*callbacks_p)->next);
 423                 callbacks_p = &((*callbacks_p)->next);
 424         }
 425
 426         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 427         (*callbacks_p)->callback = callback;
 428         (*callbacks_p)->priv = priv;
 429         (*callbacks_p)->next = NULL;
 430
 431         return ERROR_OK;
 432 }
 433
 434 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 435 {
 436         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 437         struct timeval now;
 438
 439         if (callback == NULL)
 440         {
 441                 return ERROR_INVALID_ARGUMENTS;
 442         }
 443
 444         if (*callbacks_p)
 445         {
 446                 while ((*callbacks_p)->next)
 447                         callbacks_p = &((*callbacks_p)->next);
 448                 callbacks_p = &((*callbacks_p)->next);
 449         }
 450
 451         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 452         (*callbacks_p)->callback = callback;
 453         (*callbacks_p)->periodic = periodic;
 454         (*callbacks_p)->time_ms = time_ms;
 455
 456         gettimeofday(&now, NULL);
 457         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 458         time_ms -= (time_ms % 1000);
 459         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 460         if ((*callbacks_p)->when.tv_usec > 1000000)
 461         {
 462                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 463                 (*callbacks_p)->when.tv_sec += 1;
 464         }
 465
 466         (*callbacks_p)->priv = priv;
 467         (*callbacks_p)->next = NULL;
 468
 469         return ERROR_OK;
 470 }
 471
 472 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 473 {
 474         target_event_callback_t **p = &target_event_callbacks;
 475         target_event_callback_t *c = target_event_callbacks;
 476
 477         if (callback == NULL)
 478         {
 479                 return ERROR_INVALID_ARGUMENTS;
 480         }
 481
 482         while (c)
 483         {
 484                 target_event_callback_t *next = c->next;
 485                 if ((c->callback == callback) && (c->priv == priv))
 486                 {
 487                         *p = next;
 488                         free(c);
 489                         return ERROR_OK;
 490                 }
 491                 else
 492                         p = &(c->next);
 493                 c = next;
 494         }
 495
 496         return ERROR_OK;
 497 }
 498
 499 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 500 {
 501         target_timer_callback_t **p = &target_timer_callbacks;
 502         target_timer_callback_t *c = target_timer_callbacks;
 503
 504         if (callback == NULL)
 505         {
 506                 return ERROR_INVALID_ARGUMENTS;
 507         }
 508
 509         while (c)
 510         {
 511                 target_timer_callback_t *next = c->next;
 512                 if ((c->callback == callback) && (c->priv == priv))
 513                 {
 514                         *p = next;
 515                         free(c);
 516                         return ERROR_OK;
 517                 }
 518                 else
 519                         p = &(c->next);
 520                 c = next;
 521         }
 522
 523         return ERROR_OK;
 524 }
 525
 526 int target_call_event_callbacks(target_t *target, enum target_event event)
 527 {
 528         target_event_callback_t *callback = target_event_callbacks;
 529         target_event_callback_t *next_callback;
 530
 531         DEBUG("target event %i", event);
 532
 533         while (callback)
 534         {
 535                 next_callback = callback->next;
 536                 callback->callback(target, event, callback->priv);
 537                 callback = next_callback;
 538         }
 539
 540         return ERROR_OK;
 541 }
 542
 543 int target_call_timer_callbacks()
 544 {
 545         target_timer_callback_t *callback = target_timer_callbacks;
 546         target_timer_callback_t *next_callback;
 547         struct timeval now;
 548
 549         gettimeofday(&now, NULL);
 550
 551         while (callback)
 552         {
 553                 next_callback = callback->next;
 554
 555                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 556                         || (now.tv_sec > callback->when.tv_sec))
 557                 {
 558                         callback->callback(callback->priv);
 559                         if (callback->periodic)
 560                         {
 561                                 int time_ms = callback->time_ms;
 562                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 563                                 time_ms -= (time_ms % 1000);
 564                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 565                                 if (callback->when.tv_usec > 1000000)
 566                                 {
 567                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 568                                         callback->when.tv_sec += 1;
 569                                 }
 570                         }
 571                         else
 572                                 target_unregister_timer_callback(callback->callback, callback->priv);
 573                 }
 574
 575                 callback = next_callback;
 576         }
 577
 578         return ERROR_OK;
 579 }
 580
 581 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 582 {
 583         working_area_t *c = target->working_areas;
 584         working_area_t *new_wa = NULL;
 585
 586         /* only allocate multiples of 4 byte */
 587         if (size % 4)
 588         {
 589                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 590                 size = CEIL(size, 4);
 591         }
 592
 593         /* see if there's already a matching working area */
 594         while (c)
 595         {
 596                 if ((c->free) && (c->size == size))
 597                 {
 598                         new_wa = c;
 599                         break;
 600                 }
 601                 c = c->next;
 602         }
 603
 604         /* if not, allocate a new one */
 605         if (!new_wa)
 606         {
 607                 working_area_t **p = &target->working_areas;
 608                 u32 first_free = target->working_area;
 609                 u32 free_size = target->working_area_size;
 610
 611                 DEBUG("allocating new working area");
 612
 613                 c = target->working_areas;
 614                 while (c)
 615                 {
 616                         first_free += c->size;
 617                         free_size -= c->size;
 618                         p = &c->next;
 619                         c = c->next;
 620                 }
 621
 622                 if (free_size < size)
 623                 {
 624                         WARNING("not enough working area available");
 625                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 626                 }
 627
 628                 new_wa = malloc(sizeof(working_area_t));
 629                 new_wa->next = NULL;
 630                 new_wa->size = size;
 631                 new_wa->address = first_free;
 632
 633                 if (target->backup_working_area)
 634                 {
 635                         new_wa->backup = malloc(new_wa->size);
 636                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 637                 }
 638                 else
 639                 {
 640                         new_wa->backup = NULL;
 641                 }
 642
 643                 /* put new entry in list */
 644                 *p = new_wa;
 645         }
 646
 647         /* mark as used, and return the new (reused) area */
 648         new_wa->free = 0;
 649         *area = new_wa;
 650
 651         /* user pointer */
 652         new_wa->user = area;
 653
 654         return ERROR_OK;
 655 }
 656
 657 int target_free_working_area(struct target_s *target, working_area_t *area)
 658 {
 659         if (area->free)
 660                 return ERROR_OK;
 661
 662         if (target->backup_working_area)
 663                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 664
 665         area->free = 1;
 666
 667         /* mark user pointer invalid */
 668         *area->user = NULL;
 669         area->user = NULL;
 670
 671         return ERROR_OK;
 672 }
 673
 674 int target_free_all_working_areas(struct target_s *target)
 675 {
 676         working_area_t *c = target->working_areas;
 677
 678         while (c)
 679         {
 680                 working_area_t *next = c->next;
 681                 target_free_working_area(target, c);
 682
 683                 if (c->backup)
 684                         free(c->backup);
 685
 686                 free(c);
 687
 688                 c = next;
 689         }
 690
 691         target->working_areas = NULL;
 692
 693         return ERROR_OK;
 694 }
 695
 696 int target_register_commands(struct command_context_s *cmd_ctx)
 697 {
 698         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 699         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 700         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 701         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 702         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 703         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, NULL);
 704
 705         return ERROR_OK;
 706 }
 707
 708 /* Single aligned words are guaranteed to use 16 or 32 bit access
 709  * mode respectively, otherwise data is handled as quickly as
 710  * possible
 711  */
 712 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 713 {
 714         int retval;
 715
 716         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 717
 718         if (((address % 2) == 0) && (size == 2))
 719         {
 720                 return target->type->write_memory(target, address, 2, 1, buffer);
 721         }
 722
 723         /* handle unaligned head bytes */
 724         if (address % 4)
 725         {
 726                 int unaligned = 4 - (address % 4);
 727
 728                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 729                         return retval;
 730
 731                 buffer += unaligned;
 732                 address += unaligned;
 733                 size -= unaligned;
 734         }
 735
 736         /* handle aligned words */
 737         if (size >= 4)
 738         {
 739                 int aligned = size - (size % 4);
 740
 741                 /* use bulk writes above a certain limit. This may have to be changed */
 742                 if (aligned > 128)
 743                 {
 744                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 745                                 return retval;
 746                 }
 747                 else
 748                 {
 749                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 750                                 return retval;
 751                 }
 752
 753                 buffer += aligned;
 754                 address += aligned;
 755                 size -= aligned;
 756         }
 757
 758         /* handle tail writes of less than 4 bytes */
 759         if (size > 0)
 760         {
 761                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 762                         return retval;
 763         }
 764
 765         return ERROR_OK;
 766 }
 767
 768
 769 /* Single aligned words are guaranteed to use 16 or 32 bit access
 770  * mode respectively, otherwise data is handled as quickly as
 771  * possible
 772  */
 773 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 774 {
 775         int retval;
 776
 777         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 778
 779         if (((address % 2) == 0) && (size == 2))
 780         {
 781                 return target->type->read_memory(target, address, 2, 1, buffer);
 782         }
 783
 784         /* handle unaligned head bytes */
 785         if (address % 4)
 786         {
 787                 int unaligned = 4 - (address % 4);
 788
 789                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 790                         return retval;
 791
 792                 buffer += unaligned;
 793                 address += unaligned;
 794                 size -= unaligned;
 795         }
 796
 797         /* handle aligned words */
 798         if (size >= 4)
 799         {
 800                 int aligned = size - (size % 4);
 801
 802                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 803                         return retval;
 804
 805                 buffer += aligned;
 806                 address += aligned;
 807                 size -= aligned;
 808         }
 809
 810         /* handle tail writes of less than 4 bytes */
 811         if (size > 0)
 812         {
 813                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 814                         return retval;
 815         }
 816
 817         return ERROR_OK;
 818 }
 819
 820 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
 821 {
 822         u8 *buffer;
 823         int retval;
 824         int i;
 825         u32 checksum = 0;
 826
 827         if ((retval = target->type->checksum_memory(target, address,
 828                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
 829         {
 830                 buffer = malloc(size);
 831                 if (buffer == NULL)
 832                 {
 833                         ERROR("error allocating buffer for section (%d bytes)", size);
 834                         return ERROR_INVALID_ARGUMENTS;
 835                 }
 836                 retval = target_read_buffer(target, address, size, buffer);
 837                 if (retval != ERROR_OK)
 838                 {
 839                         free(buffer);
 840                         return retval;
 841                 }
 842
 843                 /* convert to target endianess */
 844                 for (i = 0; i < (size/sizeof(u32)); i++)
 845                 {
 846                         u32 target_data;
 847                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
 848                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
 849                 }
 850
 851                 retval = image_calculate_checksum( buffer, size, &checksum );
 852                 free(buffer);
 853         }
 854
 855         *crc = checksum;
 856
 857         return retval;
 858 }
 859
 860 int target_read_u32(struct target_s *target, u32 address, u32 *value)
 861 {
 862         u8 value_buf[4];
 863
 864         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
 865
 866         if (retval == ERROR_OK)
 867         {
 868                 *value = target_buffer_get_u32(target, value_buf);
 869                 DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 870         }
 871         else
 872         {
 873                 *value = 0x0;
 874                 DEBUG("address: 0x%8.8x failed", address);
 875         }
 876
 877         return retval;
 878 }
 879
 880 int target_read_u16(struct target_s *target, u32 address, u16 *value)
 881 {
 882         u8 value_buf[2];
 883
 884         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
 885
 886         if (retval == ERROR_OK)
 887         {
 888                 *value = target_buffer_get_u16(target, value_buf);
 889                 DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
 890         }
 891         else
 892         {
 893                 *value = 0x0;
 894                 DEBUG("address: 0x%8.8x failed", address);
 895         }
 896
 897         return retval;
 898 }
 899
 900 int target_read_u8(struct target_s *target, u32 address, u8 *value)
 901 {
 902         int retval = target->type->read_memory(target, address, 1, 1, value);
 903
 904         if (retval == ERROR_OK)
 905         {
 906                 DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
 907         }
 908         else
 909         {
 910                 *value = 0x0;
 911                 DEBUG("address: 0x%8.8x failed", address);
 912         }
 913
 914         return retval;
 915 }
 916
 917 int target_write_u32(struct target_s *target, u32 address, u32 value)
 918 {
 919         int retval;
 920         u8 value_buf[4];
 921
 922         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 923
 924         target_buffer_set_u32(target, value_buf, value);
 925         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
 926         {
 927                 DEBUG("failed: %i", retval);
 928         }
 929
 930         return retval;
 931 }
 932
 933 int target_write_u16(struct target_s *target, u32 address, u16 value)
 934 {
 935         int retval;
 936         u8 value_buf[2];
 937
 938         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 939
 940         target_buffer_set_u16(target, value_buf, value);
 941         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
 942         {
 943                 DEBUG("failed: %i", retval);
 944         }
 945
 946         return retval;
 947 }
 948
 949 int target_write_u8(struct target_s *target, u32 address, u8 value)
 950 {
 951         int retval;
 952
 953         DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
 954
 955         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
 956         {
 957                 DEBUG("failed: %i", retval);
 958         }
 959
 960         return retval;
 961 }
 962
 963 int target_register_user_commands(struct command_context_s *cmd_ctx)
 964 {
 965         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 966         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 967         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
 968         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 969         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 970         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
 971         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 972         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 973
 974         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 975         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 976         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 977
 978         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 979         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 980         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 981
 982         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 983         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 984         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 985         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 986
 987         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
 988         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
 989         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
 990         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
 991         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
 992
 993         target_request_register_commands(cmd_ctx);
 994         trace_register_commands(cmd_ctx);
 995
 996         return ERROR_OK;
 997 }
 998
 999 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1000 {
1001         target_t *target = targets;
1002         int count = 0;
1003
1004         if (argc == 1)
1005         {
1006                 int num = strtoul(args[0], NULL, 0);
1007
1008                 while (target)
1009                 {
1010                         count++;
1011                         target = target->next;
1012                 }
1013
1014                 if (num < count)
1015                         cmd_ctx->current_target = num;
1016                 else
1017                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1018
1019                 return ERROR_OK;
1020         }
1021
1022         while (target)
1023         {
1024                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1025                 target = target->next;
1026         }
1027
1028         return ERROR_OK;
1029 }
1030
1031 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1032 {
1033         int i;
1034         int found = 0;
1035
1036         if (argc < 3)
1037         {
1038                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
1039                 exit(-1);
1040         }
1041
1042         /* search for the specified target */
1043         if (args[0] && (args[0][0] != 0))
1044         {
1045                 for (i = 0; target_types[i]; i++)
1046                 {
1047                         if (strcmp(args[0], target_types[i]->name) == 0)
1048                         {
1049                                 target_t **last_target_p = &targets;
1050
1051                                 /* register target specific commands */
1052                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1053                                 {
1054                                         ERROR("couldn't register '%s' commands", args[0]);
1055                                         exit(-1);
1056                                 }
1057
1058                                 if (*last_target_p)
1059                                 {
1060                                         while ((*last_target_p)->next)
1061                                                 last_target_p = &((*last_target_p)->next);
1062                                         last_target_p = &((*last_target_p)->next);
1063                                 }
1064
1065                                 *last_target_p = malloc(sizeof(target_t));
1066
1067                                 (*last_target_p)->type = target_types[i];
1068
1069                                 if (strcmp(args[1], "big") == 0)
1070                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1071                                 else if (strcmp(args[1], "little") == 0)
1072                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1073                                 else
1074                                 {
1075                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1076                                         exit(-1);
1077                                 }
1078
1079                                 /* what to do on a target reset */
1080                                 if (strcmp(args[2], "reset_halt") == 0)
1081                                         (*last_target_p)->reset_mode = RESET_HALT;
1082                                 else if (strcmp(args[2], "reset_run") == 0)
1083                                         (*last_target_p)->reset_mode = RESET_RUN;
1084                                 else if (strcmp(args[2], "reset_init") == 0)
1085                                         (*last_target_p)->reset_mode = RESET_INIT;
1086                                 else if (strcmp(args[2], "run_and_halt") == 0)
1087                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1088                                 else if (strcmp(args[2], "run_and_init") == 0)
1089                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1090                                 else
1091                                 {
1092                                         ERROR("unknown target startup mode %s", args[2]);
1093                                         exit(-1);
1094                                 }
1095                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1096
1097                                 (*last_target_p)->reset_script = NULL;
1098                                 (*last_target_p)->post_halt_script = NULL;
1099                                 (*last_target_p)->pre_resume_script = NULL;
1100                                 (*last_target_p)->gdb_program_script = NULL;
1101
1102                                 (*last_target_p)->working_area = 0x0;
1103                                 (*last_target_p)->working_area_size = 0x0;
1104                                 (*last_target_p)->working_areas = NULL;
1105                                 (*last_target_p)->backup_working_area = 0;
1106
1107                                 (*last_target_p)->state = TARGET_UNKNOWN;
1108                                 (*last_target_p)->reg_cache = NULL;
1109                                 (*last_target_p)->breakpoints = NULL;
1110                                 (*last_target_p)->watchpoints = NULL;
1111                                 (*last_target_p)->next = NULL;
1112                                 (*last_target_p)->arch_info = NULL;
1113
1114                                 /* initialize trace information */
1115                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1116                                 (*last_target_p)->trace_info->num_trace_points = 0;
1117                                 (*last_target_p)->trace_info->trace_points_size = 0;
1118                                 (*last_target_p)->trace_info->trace_points = NULL;
1119                                 (*last_target_p)->trace_info->trace_history_size = 0;
1120                                 (*last_target_p)->trace_info->trace_history = NULL;
1121                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1122                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1123
1124                                 (*last_target_p)->dbgmsg = NULL;
1125                                 (*last_target_p)->dbg_msg_enabled = 0;
1126
1127                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1128
1129                                 found = 1;
1130                                 break;
1131                         }
1132                 }
1133         }
1134
1135         /* no matching target found */
1136         if (!found)
1137         {
1138                 ERROR("target '%s' not found", args[0]);
1139                 exit(-1);
1140         }
1141
1142         return ERROR_OK;
1143 }
1144
1145 /* usage: target_script <target#> <event> <script_file> */
1146 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1147 {
1148         target_t *target = NULL;
1149
1150         if (argc < 3)
1151         {
1152                 ERROR("incomplete target_script command");
1153                 exit(-1);
1154         }
1155
1156         target = get_target_by_num(strtoul(args[0], NULL, 0));
1157
1158         if (!target)
1159         {
1160                 ERROR("target number '%s' not defined", args[0]);
1161                 exit(-1);
1162         }
1163
1164         if (strcmp(args[1], "reset") == 0)
1165         {
1166                 if (target->reset_script)
1167                         free(target->reset_script);
1168                 target->reset_script = strdup(args[2]);
1169         }
1170         else if (strcmp(args[1], "post_halt") == 0)
1171         {
1172                 if (target->post_halt_script)
1173                         free(target->post_halt_script);
1174                 target->post_halt_script = strdup(args[2]);
1175         }
1176         else if (strcmp(args[1], "pre_resume") == 0)
1177         {
1178                 if (target->pre_resume_script)
1179                         free(target->pre_resume_script);
1180                 target->pre_resume_script = strdup(args[2]);
1181         }
1182         else if (strcmp(args[1], "gdb_program_config") == 0)
1183         {
1184                 if (target->gdb_program_script)
1185                         free(target->gdb_program_script);
1186                 target->gdb_program_script = strdup(args[2]);
1187         }
1188         else
1189         {
1190                 ERROR("unknown event type: '%s", args[1]);
1191                 exit(-1);
1192         }
1193
1194         return ERROR_OK;
1195 }
1196
1197 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1198 {
1199         target_t *target = NULL;
1200
1201         if (argc < 2)
1202         {
1203                 ERROR("incomplete run_and_halt_time command");
1204                 exit(-1);
1205         }
1206
1207         target = get_target_by_num(strtoul(args[0], NULL, 0));
1208
1209         if (!target)
1210         {
1211                 ERROR("target number '%s' not defined", args[0]);
1212                 exit(-1);
1213         }
1214
1215         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1216
1217         return ERROR_OK;
1218 }
1219
1220 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1221 {
1222         target_t *target = NULL;
1223
1224         if (argc < 4)
1225         {
1226                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1227                 exit(-1);
1228         }
1229
1230         target = get_target_by_num(strtoul(args[0], NULL, 0));
1231
1232         if (!target)
1233         {
1234                 ERROR("target number '%s' not defined", args[0]);
1235                 exit(-1);
1236         }
1237         target_free_all_working_areas(target);
1238
1239         target->working_area = strtoul(args[1], NULL, 0);
1240         target->working_area_size = strtoul(args[2], NULL, 0);
1241
1242         if (strcmp(args[3], "backup") == 0)
1243         {
1244                 target->backup_working_area = 1;
1245         }
1246         else if (strcmp(args[3], "nobackup") == 0)
1247         {
1248                 target->backup_working_area = 0;
1249         }
1250         else
1251         {
1252                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1253                 exit(-1);
1254         }
1255
1256         return ERROR_OK;
1257 }
1258
1259
1260 /* process target state changes */
1261 int handle_target(void *priv)
1262 {
1263         int retval;
1264         target_t *target = targets;
1265
1266         while (target)
1267         {
1268                 /* only poll if target isn't already halted */
1269                 if (target->state != TARGET_HALTED)
1270                 {
1271                         if (target_continous_poll)
1272                                 if ((retval = target->type->poll(target)) < 0)
1273                                 {
1274                                         ERROR("couldn't poll target. It's due for a reset.");
1275                                 }
1276                 }
1277
1278                 target = target->next;
1279         }
1280
1281         return ERROR_OK;
1282 }
1283
1284 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1285 {
1286         target_t *target;
1287         reg_t *reg = NULL;
1288         int count = 0;
1289         char *value;
1290
1291         DEBUG("-");
1292
1293         target = get_current_target(cmd_ctx);
1294
1295         /* list all available registers for the current target */
1296         if (argc == 0)
1297         {
1298                 reg_cache_t *cache = target->reg_cache;
1299
1300                 count = 0;
1301                 while(cache)
1302                 {
1303                         int i;
1304                         for (i = 0; i < cache->num_regs; i++)
1305                         {
1306                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1307                                 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);
1308                                 free(value);
1309                         }
1310                         cache = cache->next;
1311                 }
1312
1313                 return ERROR_OK;
1314         }
1315
1316         /* access a single register by its ordinal number */
1317         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1318         {
1319                 int num = strtoul(args[0], NULL, 0);
1320                 reg_cache_t *cache = target->reg_cache;
1321
1322                 count = 0;
1323                 while(cache)
1324                 {
1325                         int i;
1326                         for (i = 0; i < cache->num_regs; i++)
1327                         {
1328                                 if (count++ == num)
1329                                 {
1330                                         reg = &cache->reg_list[i];
1331                                         break;
1332                                 }
1333                         }
1334                         if (reg)
1335                                 break;
1336                         cache = cache->next;
1337                 }
1338
1339                 if (!reg)
1340                 {
1341                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1342                         return ERROR_OK;
1343                 }
1344         } else /* access a single register by its name */
1345         {
1346                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1347
1348                 if (!reg)
1349                 {
1350                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1351                         return ERROR_OK;
1352                 }
1353         }
1354
1355         /* display a register */
1356         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1357         {
1358                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1359                         reg->valid = 0;
1360
1361                 if (reg->valid == 0)
1362                 {
1363                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1364                         if (arch_type == NULL)
1365                         {
1366                                 ERROR("BUG: encountered unregistered arch type");
1367                                 return ERROR_OK;
1368                         }
1369                         arch_type->get(reg);
1370                 }
1371                 value = buf_to_str(reg->value, reg->size, 16);
1372                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1373                 free(value);
1374                 return ERROR_OK;
1375         }
1376
1377         /* set register value */
1378         if (argc == 2)
1379         {
1380                 u8 *buf = malloc(CEIL(reg->size, 8));
1381                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1382
1383                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1384                 if (arch_type == NULL)
1385                 {
1386                         ERROR("BUG: encountered unregistered arch type");
1387                         return ERROR_OK;
1388                 }
1389
1390                 arch_type->set(reg, buf);
1391
1392                 value = buf_to_str(reg->value, reg->size, 16);
1393                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1394                 free(value);
1395
1396                 free(buf);
1397
1398                 return ERROR_OK;
1399         }
1400
1401         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1402
1403         return ERROR_OK;
1404 }
1405
1406 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1407
1408 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1409 {
1410         target_t *target = get_current_target(cmd_ctx);
1411         char buffer[512];
1412
1413         if (argc == 0)
1414         {
1415                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1416                 if (target->state == TARGET_HALTED)
1417                 {
1418                         target->type->arch_state(target, buffer, 512);
1419                         buffer[511] = 0;
1420                         command_print(cmd_ctx, "%s", buffer);
1421                 }
1422         }
1423         else
1424         {
1425                 if (strcmp(args[0], "on") == 0)
1426                 {
1427                         target_continous_poll = 1;
1428                 }
1429                 else if (strcmp(args[0], "off") == 0)
1430                 {
1431                         target_continous_poll = 0;
1432                 }
1433                 else
1434                 {
1435                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1436                 }
1437         }
1438
1439
1440         return ERROR_OK;
1441 }
1442
1443 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1444 {
1445         int ms = 5000;
1446
1447         if (argc > 0)
1448         {
1449                 char *end;
1450
1451                 ms = strtoul(args[0], &end, 0) * 1000;
1452                 if (*end)
1453                 {
1454                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1455                         return ERROR_OK;
1456                 }
1457         }
1458
1459         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1460 }
1461
1462 static void target_process_events(struct command_context_s *cmd_ctx)
1463 {
1464         target_t *target = get_current_target(cmd_ctx);
1465         target->type->poll(target);
1466         target_call_timer_callbacks();
1467 }
1468
1469 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1470 {
1471         struct timeval timeout, now;
1472
1473         gettimeofday(&timeout, NULL);
1474         timeval_add_time(&timeout, 0, ms * 1000);
1475         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1476
1477         target_t *target = get_current_target(cmd_ctx);
1478         while (target->type->poll(target))
1479         {
1480                 target_call_timer_callbacks();
1481                 if (target->state == state)
1482                 {
1483                         command_print(cmd_ctx, "target %s", target_state_strings[state]);
1484                         break;
1485                 }
1486
1487                 gettimeofday(&now, NULL);
1488                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1489                 {
1490                         command_print(cmd_ctx, "timed out while waiting for target %s", target_state_strings[state]);
1491                         ERROR("timed out while waiting for target %s", target_state_strings[state]);
1492                         break;
1493                 }
1494         }
1495
1496         return ERROR_OK;
1497 }
1498
1499 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1500 {
1501         int retval;
1502         target_t *target = get_current_target(cmd_ctx);
1503
1504         DEBUG("-");
1505
1506         command_print(cmd_ctx, "requesting target halt...");
1507
1508         if ((retval = target->type->halt(target)) != ERROR_OK)
1509         {
1510                 switch (retval)
1511                 {
1512                         case ERROR_TARGET_ALREADY_HALTED:
1513                                 command_print(cmd_ctx, "target already halted");
1514                                 break;
1515                         case ERROR_TARGET_TIMEOUT:
1516                                 command_print(cmd_ctx, "target timed out... shutting down");
1517                                 return retval;
1518                         default:
1519                                 command_print(cmd_ctx, "unknown error... shutting down");
1520                                 return retval;
1521                 }
1522         }
1523
1524         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1525 }
1526
1527 /* what to do on daemon startup */
1528 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1529 {
1530         if (argc == 1)
1531         {
1532                 if (strcmp(args[0], "attach") == 0)
1533                 {
1534                         startup_mode = DAEMON_ATTACH;
1535                         return ERROR_OK;
1536                 }
1537                 else if (strcmp(args[0], "reset") == 0)
1538                 {
1539                         startup_mode = DAEMON_RESET;
1540                         return ERROR_OK;
1541                 }
1542         }
1543
1544         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1545         return ERROR_OK;
1546
1547 }
1548
1549 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1550 {
1551         target_t *target = get_current_target(cmd_ctx);
1552         int retval;
1553
1554         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1555
1556         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1557         {
1558                 switch (retval)
1559                 {
1560                         case ERROR_TARGET_TIMEOUT:
1561                                 command_print(cmd_ctx, "target timed out... shutting down");
1562                                 exit(-1);
1563                         default:
1564                                 command_print(cmd_ctx, "unknown error... shutting down");
1565                                 exit(-1);
1566                 }
1567         }
1568
1569         return ERROR_OK;
1570 }
1571
1572 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1573 {
1574         target_t *target = get_current_target(cmd_ctx);
1575         enum target_reset_mode reset_mode = target->reset_mode;
1576         enum target_reset_mode save = target->reset_mode;
1577
1578         DEBUG("-");
1579
1580         if (argc >= 1)
1581         {
1582                 if (strcmp("run", args[0]) == 0)
1583                         reset_mode = RESET_RUN;
1584                 else if (strcmp("halt", args[0]) == 0)
1585                         reset_mode = RESET_HALT;
1586                 else if (strcmp("init", args[0]) == 0)
1587                         reset_mode = RESET_INIT;
1588                 else if (strcmp("run_and_halt", args[0]) == 0)
1589                 {
1590                         reset_mode = RESET_RUN_AND_HALT;
1591                         if (argc >= 2)
1592                         {
1593                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1594                         }
1595                 }
1596                 else if (strcmp("run_and_init", args[0]) == 0)
1597                 {
1598                         reset_mode = RESET_RUN_AND_INIT;
1599                         if (argc >= 2)
1600                         {
1601                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1602                         }
1603                 }
1604                 else
1605                 {
1606                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1607                         return ERROR_OK;
1608                 }
1609         }
1610
1611         /* temporarily modify mode of current reset target */
1612         target->reset_mode = reset_mode;
1613
1614         /* reset *all* targets */
1615         target_process_reset(cmd_ctx);
1616
1617         /* Restore default reset mode for this target */
1618     target->reset_mode = save;
1619
1620         return ERROR_OK;
1621 }
1622
1623 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1624 {
1625         int retval;
1626         target_t *target = get_current_target(cmd_ctx);
1627
1628         DEBUG("-");
1629
1630         if (argc == 0)
1631                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1632         else if (argc == 1)
1633                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1634         else
1635         {
1636                 command_print(cmd_ctx, "usage: resume [address]");
1637                 return ERROR_OK;
1638         }
1639
1640         if (retval != ERROR_OK)
1641         {
1642                 switch (retval)
1643                 {
1644                         case ERROR_TARGET_NOT_HALTED:
1645                                 command_print(cmd_ctx, "target not halted");
1646                                 break;
1647                         default:
1648                                 command_print(cmd_ctx, "unknown error... shutting down");
1649                                 exit(-1);
1650                 }
1651         }
1652
1653         target_process_events(cmd_ctx);
1654
1655         return ERROR_OK;
1656 }
1657
1658 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1659 {
1660         target_t *target = get_current_target(cmd_ctx);
1661
1662         DEBUG("-");
1663
1664         if (argc == 0)
1665                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1666
1667         if (argc == 1)
1668                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1669
1670         return ERROR_OK;
1671 }
1672
1673 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1674 {
1675         const int line_bytecnt = 32;
1676         int count = 1;
1677         int size = 4;
1678         u32 address = 0;
1679         int line_modulo;
1680         int i;
1681
1682         char output[128];
1683         int output_len;
1684
1685         int retval;
1686
1687         u8 *buffer;
1688         target_t *target = get_current_target(cmd_ctx);
1689
1690         if (argc < 1)
1691                 return ERROR_OK;
1692
1693         if (argc == 2)
1694                 count = strtoul(args[1], NULL, 0);
1695
1696         address = strtoul(args[0], NULL, 0);
1697
1698
1699         switch (cmd[2])
1700         {
1701                 case 'w':
1702                         size = 4; line_modulo = line_bytecnt / 4;
1703                         break;
1704                 case 'h':
1705                         size = 2; line_modulo = line_bytecnt / 2;
1706                         break;
1707                 case 'b':
1708                         size = 1; line_modulo = line_bytecnt / 1;
1709                         break;
1710                 default:
1711                         return ERROR_OK;
1712         }
1713
1714         buffer = calloc(count, size);
1715         retval  = target->type->read_memory(target, address, size, count, buffer);
1716         if (retval != ERROR_OK)
1717         {
1718                 switch (retval)
1719                 {
1720                         case ERROR_TARGET_UNALIGNED_ACCESS:
1721                                 command_print(cmd_ctx, "error: address not aligned");
1722                                 break;
1723                         case ERROR_TARGET_NOT_HALTED:
1724                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1725                                 break;
1726                         case ERROR_TARGET_DATA_ABORT:
1727                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1728                                 break;
1729                         default:
1730                                 command_print(cmd_ctx, "error: unknown error");
1731                                 break;
1732                 }
1733                 return ERROR_OK;
1734         }
1735
1736         output_len = 0;
1737
1738         for (i = 0; i < count; i++)
1739         {
1740                 if (i%line_modulo == 0)
1741                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1742
1743                 switch (size)
1744                 {
1745                         case 4:
1746                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1747                                 break;
1748                         case 2:
1749                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1750                                 break;
1751                         case 1:
1752                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1753                                 break;
1754                 }
1755
1756                 if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1757                 {
1758                         command_print(cmd_ctx, output);
1759                         output_len = 0;
1760                 }
1761         }
1762
1763         free(buffer);
1764
1765         return ERROR_OK;
1766 }
1767
1768 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1769 {
1770         u32 address = 0;
1771         u32 value = 0;
1772         int retval;
1773         target_t *target = get_current_target(cmd_ctx);
1774         u8 value_buf[4];
1775
1776         if (argc < 2)
1777                 return ERROR_OK;
1778
1779         address = strtoul(args[0], NULL, 0);
1780         value = strtoul(args[1], NULL, 0);
1781
1782         switch (cmd[2])
1783         {
1784                 case 'w':
1785                         target_buffer_set_u32(target, value_buf, value);
1786                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1787                         break;
1788                 case 'h':
1789                         target_buffer_set_u16(target, value_buf, value);
1790                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1791                         break;
1792                 case 'b':
1793                         value_buf[0] = value;
1794                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1795                         break;
1796                 default:
1797                         return ERROR_OK;
1798         }
1799
1800         switch (retval)
1801         {
1802                 case ERROR_TARGET_UNALIGNED_ACCESS:
1803                         command_print(cmd_ctx, "error: address not aligned");
1804                         break;
1805                 case ERROR_TARGET_DATA_ABORT:
1806                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1807                         break;
1808                 case ERROR_TARGET_NOT_HALTED:
1809                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1810                         break;
1811                 case ERROR_OK:
1812                         break;
1813                 default:
1814                         command_print(cmd_ctx, "error: unknown error");
1815                         break;
1816         }
1817
1818         return ERROR_OK;
1819
1820 }
1821
1822 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1823 {
1824         u8 *buffer;
1825         u32 buf_cnt;
1826         u32 image_size;
1827         int i;
1828         int retval;
1829
1830         image_t image;
1831
1832         duration_t duration;
1833         char *duration_text;
1834
1835         target_t *target = get_current_target(cmd_ctx);
1836
1837         if (argc < 1)
1838         {
1839                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
1840                 return ERROR_OK;
1841         }
1842
1843         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1844         if (argc >= 2)
1845         {
1846                 image.base_address_set = 1;
1847                 image.base_address = strtoul(args[1], NULL, 0);
1848         }
1849         else
1850         {
1851                 image.base_address_set = 0;
1852         }
1853
1854         image.start_address_set = 0;
1855
1856         duration_start_measure(&duration);
1857
1858         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1859         {
1860                 command_print(cmd_ctx, "load_image error: %s", image.error_str);
1861                 return ERROR_OK;
1862         }
1863
1864         image_size = 0x0;
1865         for (i = 0; i < image.num_sections; i++)
1866         {
1867                 buffer = malloc(image.sections[i].size);
1868                 if (buffer == NULL)
1869                 {
1870                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
1871                         break;
1872                 }
1873
1874                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1875                 {
1876                         ERROR("image_read_section failed with error code: %i", retval);
1877                         command_print(cmd_ctx, "image reading failed, download aborted");
1878                         free(buffer);
1879                         image_close(&image);
1880                         return ERROR_OK;
1881                 }
1882                 target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
1883                 image_size += buf_cnt;
1884                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
1885
1886                 free(buffer);
1887         }
1888
1889         duration_stop_measure(&duration, &duration_text);
1890         command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1891         free(duration_text);
1892
1893         image_close(&image);
1894
1895         return ERROR_OK;
1896
1897 }
1898
1899 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1900 {
1901         fileio_t fileio;
1902
1903         u32 address;
1904         u32 size;
1905         u8 buffer[560];
1906         int retval;
1907
1908         duration_t duration;
1909         char *duration_text;
1910
1911         target_t *target = get_current_target(cmd_ctx);
1912
1913         if (argc != 3)
1914         {
1915                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1916                 return ERROR_OK;
1917         }
1918
1919         address = strtoul(args[1], NULL, 0);
1920         size = strtoul(args[2], NULL, 0);
1921
1922         if ((address & 3) || (size & 3))
1923         {
1924                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1925                 return ERROR_OK;
1926         }
1927
1928         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
1929         {
1930                 command_print(cmd_ctx, "dump_image error: %s", fileio.error_str);
1931                 return ERROR_OK;
1932         }
1933
1934         duration_start_measure(&duration);
1935
1936         while (size > 0)
1937         {
1938                 u32 size_written;
1939                 u32 this_run_size = (size > 560) ? 560 : size;
1940
1941                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1942                 if (retval != ERROR_OK)
1943                 {
1944                         command_print(cmd_ctx, "Reading memory failed %d", retval);
1945                         break;
1946                 }
1947
1948                 fileio_write(&fileio, this_run_size, buffer, &size_written);
1949
1950                 size -= this_run_size;
1951                 address += this_run_size;
1952         }
1953
1954         fileio_close(&fileio);
1955
1956         duration_stop_measure(&duration, &duration_text);
1957         command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
1958         free(duration_text);
1959
1960         return ERROR_OK;
1961 }
1962
1963 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1964 {
1965         u8 *buffer;
1966         u32 buf_cnt;
1967         u32 image_size;
1968         int i;
1969         int retval;
1970         u32 checksum = 0;
1971         u32 mem_checksum = 0;
1972
1973         image_t image;
1974
1975         duration_t duration;
1976         char *duration_text;
1977
1978         target_t *target = get_current_target(cmd_ctx);
1979
1980         if (argc < 1)
1981         {
1982                 command_print(cmd_ctx, "usage: verify_image <file> [offset] [type]");
1983                 return ERROR_OK;
1984         }
1985
1986         if (!target)
1987         {
1988                 ERROR("no target selected");
1989                 return ERROR_OK;
1990         }
1991
1992         duration_start_measure(&duration);
1993
1994         if (argc >= 2)
1995         {
1996                 image.base_address_set = 1;
1997                 image.base_address = strtoul(args[1], NULL, 0);
1998         }
1999         else
2000         {
2001                 image.base_address_set = 0;
2002                 image.base_address = 0x0;
2003         }
2004
2005         image.start_address_set = 0;
2006
2007         if (image_open(&image, args[0], (argc == 3) ? args[2] : NULL) != ERROR_OK)
2008         {
2009                 command_print(cmd_ctx, "verify_image error: %s", image.error_str);
2010                 return ERROR_OK;
2011         }
2012
2013         image_size = 0x0;
2014         for (i = 0; i < image.num_sections; i++)
2015         {
2016                 buffer = malloc(image.sections[i].size);
2017                 if (buffer == NULL)
2018                 {
2019                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2020                         break;
2021                 }
2022                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2023                 {
2024                         ERROR("image_read_section failed with error code: %i", retval);
2025                         command_print(cmd_ctx, "image reading failed, verify aborted");
2026                         free(buffer);
2027                         image_close(&image);
2028                         return ERROR_OK;
2029                 }
2030
2031                 /* calculate checksum of image */
2032                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2033
2034                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2035
2036                 if( retval != ERROR_OK )
2037                 {
2038                         command_print(cmd_ctx, "could not calculate checksum, verify aborted");
2039                         free(buffer);
2040                         image_close(&image);
2041                         return ERROR_OK;
2042                 }
2043
2044                 if( checksum != mem_checksum )
2045                 {
2046                         /* failed crc checksum, fall back to a binary compare */
2047                         u8 *data;
2048
2049                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2050
2051                         data = (u8*)malloc(buf_cnt);
2052
2053                         /* Can we use 32bit word accesses? */
2054                         int size = 1;
2055                         int count = buf_cnt;
2056                         if ((count % 4) == 0)
2057                         {
2058                                 size *= 4;
2059                                 count /= 4;
2060                         }
2061                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2062
2063                         if (retval == ERROR_OK)
2064                         {
2065                                 int t;
2066                                 for (t = 0; t < buf_cnt; t++)
2067                                 {
2068                                         if (data[t] != buffer[t])
2069                                         {
2070                                                 command_print(cmd_ctx, "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n", t + image.sections[i].base_address, data[t], buffer[t]);
2071                                                 free(data);
2072                                                 free(buffer);
2073                                                 image_close(&image);
2074                                                 return ERROR_OK;
2075                                         }
2076                                 }
2077                         }
2078
2079                         free(data);
2080                 }
2081
2082                 free(buffer);
2083                 image_size += buf_cnt;
2084         }
2085
2086         duration_stop_measure(&duration, &duration_text);
2087         command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2088         free(duration_text);
2089
2090         image_close(&image);
2091
2092         return ERROR_OK;
2093 }
2094
2095 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2096 {
2097         int retval;
2098         target_t *target = get_current_target(cmd_ctx);
2099
2100         if (argc == 0)
2101         {
2102                 breakpoint_t *breakpoint = target->breakpoints;
2103
2104                 while (breakpoint)
2105                 {
2106                         if (breakpoint->type == BKPT_SOFT)
2107                         {
2108                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2109                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2110                                 free(buf);
2111                         }
2112                         else
2113                         {
2114                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2115                         }
2116                         breakpoint = breakpoint->next;
2117                 }
2118         }
2119         else if (argc >= 2)
2120         {
2121                 int hw = BKPT_SOFT;
2122                 u32 length = 0;
2123
2124                 length = strtoul(args[1], NULL, 0);
2125
2126                 if (argc >= 3)
2127                         if (strcmp(args[2], "hw") == 0)
2128                                 hw = BKPT_HARD;
2129
2130                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2131                 {
2132                         switch (retval)
2133                         {
2134                                 case ERROR_TARGET_NOT_HALTED:
2135                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
2136                                         break;
2137                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
2138                                         command_print(cmd_ctx, "no more breakpoints available");
2139                                         break;
2140                                 default:
2141                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
2142                                         break;
2143                         }
2144                 }
2145                 else
2146                 {
2147                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2148                 }
2149         }
2150         else
2151         {
2152                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2153         }
2154
2155         return ERROR_OK;
2156 }
2157
2158 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2159 {
2160         target_t *target = get_current_target(cmd_ctx);
2161
2162         if (argc > 0)
2163                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2164
2165         return ERROR_OK;
2166 }
2167
2168 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2169 {
2170         target_t *target = get_current_target(cmd_ctx);
2171         int retval;
2172
2173         if (argc == 0)
2174         {
2175                 watchpoint_t *watchpoint = target->watchpoints;
2176
2177                 while (watchpoint)
2178                 {
2179                         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);
2180                         watchpoint = watchpoint->next;
2181                 }
2182         }
2183         else if (argc >= 2)
2184         {
2185                 enum watchpoint_rw type = WPT_ACCESS;
2186                 u32 data_value = 0x0;
2187                 u32 data_mask = 0xffffffff;
2188
2189                 if (argc >= 3)
2190                 {
2191                         switch(args[2][0])
2192                         {
2193                                 case 'r':
2194                                         type = WPT_READ;
2195                                         break;
2196                                 case 'w':
2197                                         type = WPT_WRITE;
2198                                         break;
2199                                 case 'a':
2200                                         type = WPT_ACCESS;
2201                                         break;
2202                                 default:
2203                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2204                                         return ERROR_OK;
2205                         }
2206                 }
2207                 if (argc >= 4)
2208                 {
2209                         data_value = strtoul(args[3], NULL, 0);
2210                 }
2211                 if (argc >= 5)
2212                 {
2213                         data_mask = strtoul(args[4], NULL, 0);
2214                 }
2215
2216                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2217                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2218                 {
2219                         switch (retval)
2220                         {
2221                                 case ERROR_TARGET_NOT_HALTED:
2222                                         command_print(cmd_ctx, "target must be halted to set watchpoints");
2223                                         break;
2224                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
2225                                         command_print(cmd_ctx, "no more watchpoints available");
2226                                         break;
2227                                 default:
2228                                         command_print(cmd_ctx, "unknown error, watchpoint not set");
2229                                         break;
2230                         }
2231                 }
2232         }
2233         else
2234         {
2235                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2236         }
2237
2238         return ERROR_OK;
2239 }
2240
2241 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2242 {
2243         target_t *target = get_current_target(cmd_ctx);
2244
2245         if (argc > 0)
2246                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2247
2248         return ERROR_OK;
2249 }