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