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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26
  27 #include "log.h"
  28 #include "configuration.h"
  29 #include "binarybuffer.h"
  30 #include "jtag.h"
  31
  32 #include <string.h>
  33 #include <stdlib.h>
  34
  35 #include <sys/types.h>
  36 #include <sys/stat.h>
  37 #include <unistd.h>
  38 #include <errno.h>
  39
  40 #include <sys/time.h>
  41 #include <time.h>
  42
  43 #include <time_support.h>
  44
  45 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  46
  47 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50
  51 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54
  55 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71
  72 /* targets
  73  */
  74 extern target_type_t arm7tdmi_target;
  75 extern target_type_t arm720t_target;
  76 extern target_type_t arm9tdmi_target;
  77 extern target_type_t arm920t_target;
  78 extern target_type_t arm966e_target;
  79
  80 target_type_t *target_types[] =
  81 {
  82         &arm7tdmi_target,
  83         &arm9tdmi_target,
  84         &arm920t_target,
  85         &arm720t_target,
  86         &arm966e_target,
  87         NULL,
  88 };
  89
  90 target_t *targets = NULL;
  91 target_event_callback_t *target_event_callbacks = NULL;
  92 target_timer_callback_t *target_timer_callbacks = NULL;
  93
  94 char *target_state_strings[] =
  95 {
  96         "unknown",
  97         "running",
  98         "halted",
  99         "reset",
 100         "debug_running",
 101 };
 102
 103 char *target_debug_reason_strings[] =
 104 {
 105         "debug request", "breakpoint", "watchpoint",
 106         "watchpoint and breakpoint", "single step",
 107         "target not halted"
 108 };
 109
 110 char *target_endianess_strings[] =
 111 {
 112         "big endian",
 113         "little endian",
 114 };
 115
 116 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 117
 118 static int target_continous_poll = 1;
 119
 120 /* read a u32 from a buffer in target memory endianness */
 121 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 122 {
 123         if (target->endianness == TARGET_LITTLE_ENDIAN)
 124                 return le_to_h_u32(buffer);
 125         else
 126                 return be_to_h_u32(buffer);
 127 }
 128
 129 /* read a u16 from a buffer in target memory endianness */
 130 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 131 {
 132         if (target->endianness == TARGET_LITTLE_ENDIAN)
 133                 return le_to_h_u16(buffer);
 134         else
 135                 return be_to_h_u16(buffer);
 136 }
 137
 138 /* write a u32 to a buffer in target memory endianness */
 139 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 140 {
 141         if (target->endianness == TARGET_LITTLE_ENDIAN)
 142                 h_u32_to_le(buffer, value);
 143         else
 144                 h_u32_to_be(buffer, value);
 145 }
 146
 147 /* write a u16 to a buffer in target memory endianness */
 148 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 149 {
 150         if (target->endianness == TARGET_LITTLE_ENDIAN)
 151                 h_u16_to_le(buffer, value);
 152         else
 153                 h_u16_to_be(buffer, value);
 154 }
 155
 156 /* returns a pointer to the n-th configured target */
 157 target_t* get_target_by_num(int num)
 158 {
 159         target_t *target = targets;
 160         int i = 0;
 161
 162         while (target)
 163         {
 164                 if (num == i)
 165                         return target;
 166                 target = target->next;
 167                 i++;
 168         }
 169
 170         return NULL;
 171 }
 172
 173 int get_num_by_target(target_t *query_target)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (target == query_target)
 181                         return i;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return -1;
 187 }
 188
 189 target_t* get_current_target(command_context_t *cmd_ctx)
 190 {
 191         target_t *target = get_target_by_num(cmd_ctx->current_target);
 192
 193         if (target == NULL)
 194         {
 195                 ERROR("BUG: current_target out of bounds");
 196                 exit(-1);
 197         }
 198
 199         return target;
 200 }
 201
 202 /* Process target initialization, when target entered debug out of reset
 203  * the handler is unregistered at the end of this function, so it's only called once
 204  */
 205 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 206 {
 207         FILE *script;
 208         struct command_context_s *cmd_ctx = priv;
 209
 210         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 211         {
 212                 script = fopen(target->reset_script, "r");
 213                 if (!script)
 214                 {
 215                         ERROR("couldn't open script file %s", target->reset_script);
 216                                 return ERROR_OK;
 217                 }
 218
 219                 INFO("executing reset script '%s'", target->reset_script);
 220                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 221                 fclose(script);
 222
 223                 jtag_execute_queue();
 224
 225                 target_unregister_event_callback(target_init_handler, priv);
 226         }
 227
 228         return ERROR_OK;
 229 }
 230
 231 int target_run_and_halt_handler(void *priv)
 232 {
 233         target_t *target = priv;
 234
 235         target->type->halt(target);
 236
 237         return ERROR_OK;
 238 }
 239
 240 int target_process_reset(struct command_context_s *cmd_ctx)
 241 {
 242         int retval = ERROR_OK;
 243         target_t *target;
 244
 245         target = targets;
 246         while (target)
 247         {
 248                 target->type->assert_reset(target);
 249                 target = target->next;
 250         }
 251         jtag_execute_queue();
 252
 253         /* request target halt if necessary, and schedule further action */
 254         target = targets;
 255         while (target)
 256         {
 257                 switch (target->reset_mode)
 258                 {
 259                         case RESET_RUN:
 260                                 /* nothing to do if target just wants to be run */
 261                                 break;
 262                         case RESET_RUN_AND_HALT:
 263                                 /* schedule halt */
 264                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 265                                 break;
 266                         case RESET_RUN_AND_INIT:
 267                                 /* schedule halt */
 268                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 269                                 target_register_event_callback(target_init_handler, cmd_ctx);
 270                                 break;
 271                         case RESET_HALT:
 272                                 target->type->halt(target);
 273                                 break;
 274                         case RESET_INIT:
 275                                 target->type->halt(target);
 276                                 target_register_event_callback(target_init_handler, cmd_ctx);
 277                                 break;
 278                         default:
 279                                 ERROR("BUG: unknown target->reset_mode");
 280                 }
 281                 target = target->next;
 282         }
 283
 284         target = targets;
 285         while (target)
 286         {
 287                 target->type->deassert_reset(target);
 288                 target = target->next;
 289         }
 290         jtag_execute_queue();
 291
 292         return retval;
 293 }
 294
 295 int target_init(struct command_context_s *cmd_ctx)
 296 {
 297         target_t *target = targets;
 298
 299         while (target)
 300         {
 301                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 302                 {
 303                         ERROR("target '%s' init failed", target->type->name);
 304                         exit(-1);
 305                 }
 306                 target = target->next;
 307         }
 308
 309         if (targets)
 310         {
 311                 target_register_user_commands(cmd_ctx);
 312                 target_register_timer_callback(handle_target, 100, 1, NULL);
 313         }
 314
 315         if (startup_mode == DAEMON_RESET)
 316                 target_process_reset(cmd_ctx);
 317
 318         return ERROR_OK;
 319 }
 320
 321 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 322 {
 323         target_event_callback_t **callbacks_p = &target_event_callbacks;
 324
 325         if (callback == NULL)
 326         {
 327                 return ERROR_INVALID_ARGUMENTS;
 328         }
 329
 330         if (*callbacks_p)
 331         {
 332                 while ((*callbacks_p)->next)
 333                         callbacks_p = &((*callbacks_p)->next);
 334                 callbacks_p = &((*callbacks_p)->next);
 335         }
 336
 337         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 338         (*callbacks_p)->callback = callback;
 339         (*callbacks_p)->priv = priv;
 340         (*callbacks_p)->next = NULL;
 341
 342         return ERROR_OK;
 343 }
 344
 345 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 346 {
 347         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 348         struct timeval now;
 349
 350         if (callback == NULL)
 351         {
 352                 return ERROR_INVALID_ARGUMENTS;
 353         }
 354
 355         if (*callbacks_p)
 356         {
 357                 while ((*callbacks_p)->next)
 358                         callbacks_p = &((*callbacks_p)->next);
 359                 callbacks_p = &((*callbacks_p)->next);
 360         }
 361
 362         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 363         (*callbacks_p)->callback = callback;
 364         (*callbacks_p)->periodic = periodic;
 365         (*callbacks_p)->time_ms = time_ms;
 366
 367         gettimeofday(&now, NULL);
 368         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 369         time_ms -= (time_ms % 1000);
 370         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 371         if ((*callbacks_p)->when.tv_usec > 1000000)
 372         {
 373                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 374                 (*callbacks_p)->when.tv_sec += 1;
 375         }
 376
 377         (*callbacks_p)->priv = priv;
 378         (*callbacks_p)->next = NULL;
 379
 380         return ERROR_OK;
 381 }
 382
 383 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 384 {
 385         target_event_callback_t **p = &target_event_callbacks;
 386         target_event_callback_t *c = target_event_callbacks;
 387
 388         if (callback == NULL)
 389         {
 390                 return ERROR_INVALID_ARGUMENTS;
 391         }
 392
 393         while (c)
 394         {
 395                 target_event_callback_t *next = c->next;
 396                 if ((c->callback == callback) && (c->priv == priv))
 397                 {
 398                         *p = next;
 399                         free(c);
 400                         return ERROR_OK;
 401                 }
 402                 else
 403                         p = &(c->next);
 404                 c = next;
 405         }
 406
 407         return ERROR_OK;
 408 }
 409
 410 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 411 {
 412         target_timer_callback_t **p = &target_timer_callbacks;
 413         target_timer_callback_t *c = target_timer_callbacks;
 414
 415         if (callback == NULL)
 416         {
 417                 return ERROR_INVALID_ARGUMENTS;
 418         }
 419
 420         while (c)
 421         {
 422                 target_timer_callback_t *next = c->next;
 423                 if ((c->callback == callback) && (c->priv == priv))
 424                 {
 425                         *p = next;
 426                         free(c);
 427                         return ERROR_OK;
 428                 }
 429                 else
 430                         p = &(c->next);
 431                 c = next;
 432         }
 433
 434         return ERROR_OK;
 435 }
 436
 437 int target_call_event_callbacks(target_t *target, enum target_event event)
 438 {
 439         target_event_callback_t *callback = target_event_callbacks;
 440         target_event_callback_t *next_callback;
 441
 442         DEBUG("target event %i", event);
 443
 444         while (callback)
 445         {
 446                 next_callback = callback->next;
 447                 callback->callback(target, event, callback->priv);
 448                 callback = next_callback;
 449         }
 450
 451         return ERROR_OK;
 452 }
 453
 454 int target_call_timer_callbacks()
 455 {
 456         target_timer_callback_t *callback = target_timer_callbacks;
 457         target_timer_callback_t *next_callback;
 458         struct timeval now;
 459
 460         gettimeofday(&now, NULL);
 461
 462         while (callback)
 463         {
 464                 next_callback = callback->next;
 465
 466                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 467                         || (now.tv_sec > callback->when.tv_sec))
 468                 {
 469                         callback->callback(callback->priv);
 470                         if (callback->periodic)
 471                         {
 472                                 int time_ms = callback->time_ms;
 473                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 474                                 time_ms -= (time_ms % 1000);
 475                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 476                                 if (callback->when.tv_usec > 1000000)
 477                                 {
 478                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 479                                         callback->when.tv_sec += 1;
 480                                 }
 481                         }
 482                         else
 483                                 target_unregister_timer_callback(callback->callback, callback->priv);
 484                 }
 485
 486                 callback = next_callback;
 487         }
 488
 489         return ERROR_OK;
 490 }
 491
 492 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 493 {
 494         working_area_t *c = target->working_areas;
 495         working_area_t *new_wa = NULL;
 496
 497         /* only allocate multiples of 4 byte */
 498         if (size % 4)
 499         {
 500                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 501                 size = CEIL(size, 4);
 502         }
 503
 504         /* see if there's already a matching working area */
 505         while (c)
 506         {
 507                 if ((c->free) && (c->size == size))
 508                 {
 509                         new_wa = c;
 510                         break;
 511                 }
 512                 c = c->next;
 513         }
 514
 515         /* if not, allocate a new one */
 516         if (!new_wa)
 517         {
 518                 working_area_t **p = &target->working_areas;
 519                 u32 first_free = target->working_area;
 520                 u32 free_size = target->working_area_size;
 521
 522                 DEBUG("allocating new working area");
 523
 524                 c = target->working_areas;
 525                 while (c)
 526                 {
 527                         first_free += c->size;
 528                         free_size -= c->size;
 529                         p = &c->next;
 530                         c = c->next;
 531                 }
 532
 533                 if (free_size < size)
 534                 {
 535                         WARNING("not enough working area available");
 536                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 537                 }
 538
 539                 new_wa = malloc(sizeof(working_area_t));
 540                 new_wa->next = NULL;
 541                 new_wa->size = size;
 542                 new_wa->address = first_free;
 543
 544                 if (target->backup_working_area)
 545                 {
 546                         new_wa->backup = malloc(new_wa->size);
 547                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 548                 }
 549                 else
 550                 {
 551                         new_wa->backup = NULL;
 552                 }
 553
 554                 /* put new entry in list */
 555                 *p = new_wa;
 556         }
 557
 558         /* mark as used, and return the new (reused) area */
 559         new_wa->free = 0;
 560         *area = new_wa;
 561
 562         /* user pointer */
 563         new_wa->user = area;
 564
 565         return ERROR_OK;
 566 }
 567
 568 int target_free_working_area(struct target_s *target, working_area_t *area)
 569 {
 570         if (area->free)
 571                 return ERROR_OK;
 572
 573         if (target->backup_working_area)
 574                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 575
 576         area->free = 1;
 577
 578         /* mark user pointer invalid */
 579         *area->user = NULL;
 580         area->user = NULL;
 581
 582         return ERROR_OK;
 583 }
 584
 585 int target_free_all_working_areas(struct target_s *target)
 586 {
 587         working_area_t *c = target->working_areas;
 588
 589         while (c)
 590         {
 591                 working_area_t *next = c->next;
 592                 target_free_working_area(target, c);
 593
 594                 if (c->backup)
 595                         free(c->backup);
 596
 597                 free(c);
 598
 599                 c = next;
 600         }
 601
 602         target->working_areas = NULL;
 603
 604         return ERROR_OK;
 605 }
 606
 607 int target_register_commands(struct command_context_s *cmd_ctx)
 608 {
 609         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 610         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 611         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 612         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 613         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 614         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 615
 616         return ERROR_OK;
 617 }
 618
 619 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 620 {
 621         int retval;
 622
 623         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 624
 625         /* handle writes of less than 4 byte */
 626         if (size < 4)
 627         {
 628                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 629                         return retval;
 630         }
 631
 632         /* handle unaligned head bytes */
 633         if (address % 4)
 634         {
 635                 int unaligned = 4 - (address % 4);
 636
 637                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 638                         return retval;
 639
 640                 buffer += unaligned;
 641                 address += unaligned;
 642                 size -= unaligned;
 643         }
 644
 645         /* handle aligned words */
 646         if (size >= 4)
 647         {
 648                 int aligned = size - (size % 4);
 649
 650                 /* use bulk writes above a certain limit. This may have to be changed */
 651                 if (aligned > 128)
 652                 {
 653                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 654                                 return retval;
 655                 }
 656                 else
 657                 {
 658                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 659                                 return retval;
 660                 }
 661
 662                 buffer += aligned;
 663                 address += aligned;
 664                 size -= aligned;
 665         }
 666
 667         /* handle tail writes of less than 4 bytes */
 668         if (size > 0)
 669         {
 670                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 671                         return retval;
 672         }
 673
 674         return ERROR_OK;
 675 }
 676
 677 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 678 {
 679         int retval;
 680
 681         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 682
 683         /* handle reads of less than 4 byte */
 684         if (size < 4)
 685         {
 686                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 687                         return retval;
 688         }
 689
 690         /* handle unaligned head bytes */
 691         if (address % 4)
 692         {
 693                 int unaligned = 4 - (address % 4);
 694
 695                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 696                         return retval;
 697
 698                 buffer += unaligned;
 699                 address += unaligned;
 700                 size -= unaligned;
 701         }
 702
 703         /* handle aligned words */
 704         if (size >= 4)
 705         {
 706                 int aligned = size - (size % 4);
 707
 708                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 709                         return retval;
 710
 711                 buffer += aligned;
 712                 address += aligned;
 713                 size -= aligned;
 714         }
 715
 716         /* handle tail writes of less than 4 bytes */
 717         if (size > 0)
 718         {
 719                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 720                         return retval;
 721         }
 722
 723         return ERROR_OK;
 724 }
 725
 726 void target_read_u32(struct target_s *target, u32 address, u32 *value)
 727 {
 728         u8 value_buf[4];
 729
 730         target->type->read_memory(target, address, 4, 1, value_buf);
 731
 732         *value = target_buffer_get_u32(target, value_buf);
 733 }
 734
 735 void target_read_u16(struct target_s *target, u32 address, u16 *value)
 736 {
 737         u8 value_buf[2];
 738
 739         target->type->read_memory(target, address, 2, 1, value_buf);
 740
 741         *value = target_buffer_get_u16(target, value_buf);
 742 }
 743
 744 void target_read_u8(struct target_s *target, u32 address, u8 *value)
 745 {
 746         target->type->read_memory(target, address, 1, 1, value);
 747 }
 748
 749 void target_write_u32(struct target_s *target, u32 address, u32 value)
 750 {
 751         u8 value_buf[4];
 752
 753         target_buffer_set_u32(target, value_buf, value);
 754         target->type->write_memory(target, address, 4, 1, value_buf);
 755 }
 756
 757 void target_write_u16(struct target_s *target, u32 address, u16 value)
 758 {
 759         u8 value_buf[2];
 760
 761         target_buffer_set_u16(target, value_buf, value);
 762         target->type->write_memory(target, address, 2, 1, value_buf);
 763 }
 764
 765 void target_write_u8(struct target_s *target, u32 address, u8 value)
 766 {
 767         target->type->read_memory(target, address, 1, 1, &value);
 768 }
 769
 770 int target_register_user_commands(struct command_context_s *cmd_ctx)
 771 {
 772         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 773         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 774         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt");
 775         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 776         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 777         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 778         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 779         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 780
 781         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 782         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 783         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 784
 785         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 786         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 787         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 788
 789         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 790         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 791         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 792         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 793
 794         register_command(cmd_ctx,  NULL, "load_binary", handle_load_binary_command, COMMAND_EXEC, "load binary <file> <address>");
 795         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_binary_command, COMMAND_EXEC, "dump binary <file> <address> <size>");
 796
 797         return ERROR_OK;
 798 }
 799
 800 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 801 {
 802         target_t *target = targets;
 803         int count = 0;
 804
 805         if (argc == 1)
 806         {
 807                 int num = strtoul(args[0], NULL, 0);
 808
 809                 while (target)
 810                 {
 811                         count++;
 812                         target = target->next;
 813                 }
 814
 815                 if (num < count)
 816                         cmd_ctx->current_target = num;
 817                 else
 818                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 819
 820                 return ERROR_OK;
 821         }
 822
 823         while (target)
 824         {
 825                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 826                 target = target->next;
 827         }
 828
 829         return ERROR_OK;
 830 }
 831
 832 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 833 {
 834         int i;
 835         int found = 0;
 836
 837         if (argc < 3)
 838         {
 839                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 840                 exit(-1);
 841         }
 842
 843         /* search for the specified target */
 844         if (args[0] && (args[0][0] != 0))
 845         {
 846                 for (i = 0; target_types[i]; i++)
 847                 {
 848                         if (strcmp(args[0], target_types[i]->name) == 0)
 849                         {
 850                                 target_t **last_target_p = &targets;
 851
 852                                 /* register target specific commands */
 853                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 854                                 {
 855                                         ERROR("couldn't register '%s' commands", args[0]);
 856                                         exit(-1);
 857                                 }
 858
 859                                 if (*last_target_p)
 860                                 {
 861                                         while ((*last_target_p)->next)
 862                                                 last_target_p = &((*last_target_p)->next);
 863                                         last_target_p = &((*last_target_p)->next);
 864                                 }
 865
 866                                 *last_target_p = malloc(sizeof(target_t));
 867
 868                                 (*last_target_p)->type = target_types[i];
 869
 870                                 if (strcmp(args[1], "big") == 0)
 871                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 872                                 else if (strcmp(args[1], "little") == 0)
 873                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 874                                 else
 875                                 {
 876                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 877                                         exit(-1);
 878                                 }
 879
 880                                 /* what to do on a target reset */
 881                                 if (strcmp(args[2], "reset_halt") == 0)
 882                                         (*last_target_p)->reset_mode = RESET_HALT;
 883                                 else if (strcmp(args[2], "reset_run") == 0)
 884                                         (*last_target_p)->reset_mode = RESET_RUN;
 885                                 else if (strcmp(args[2], "reset_init") == 0)
 886                                         (*last_target_p)->reset_mode = RESET_INIT;
 887                                 else if (strcmp(args[2], "run_and_halt") == 0)
 888                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 889                                 else if (strcmp(args[2], "run_and_init") == 0)
 890                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 891                                 else
 892                                 {
 893                                         ERROR("unknown target startup mode %s", args[2]);
 894                                         exit(-1);
 895                                 }
 896                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 897
 898                                 (*last_target_p)->reset_script = NULL;
 899                                 (*last_target_p)->post_halt_script = NULL;
 900                                 (*last_target_p)->pre_resume_script = NULL;
 901
 902                                 (*last_target_p)->working_area = 0x0;
 903                                 (*last_target_p)->working_area_size = 0x0;
 904                                 (*last_target_p)->working_areas = NULL;
 905                                 (*last_target_p)->backup_working_area = 0;
 906
 907                                 (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 908                                 (*last_target_p)->state = TARGET_UNKNOWN;
 909                                 (*last_target_p)->reg_cache = NULL;
 910                                 (*last_target_p)->breakpoints = NULL;
 911                                 (*last_target_p)->watchpoints = NULL;
 912                                 (*last_target_p)->next = NULL;
 913                                 (*last_target_p)->arch_info = NULL;
 914
 915                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 916
 917                                 found = 1;
 918                                 break;
 919                         }
 920                 }
 921         }
 922
 923         /* no matching target found */
 924         if (!found)
 925         {
 926                 ERROR("target '%s' not found", args[0]);
 927                 exit(-1);
 928         }
 929
 930         return ERROR_OK;
 931 }
 932
 933 /* usage: target_script <target#> <event> <script_file> */
 934 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 935 {
 936         target_t *target = NULL;
 937
 938         if (argc < 3)
 939         {
 940                 ERROR("incomplete target_script command");
 941                 exit(-1);
 942         }
 943
 944         target = get_target_by_num(strtoul(args[0], NULL, 0));
 945
 946         if (!target)
 947         {
 948                 ERROR("target number '%s' not defined", args[0]);
 949                 exit(-1);
 950         }
 951
 952         if (strcmp(args[1], "reset") == 0)
 953         {
 954                 if (target->reset_script)
 955                         free(target->reset_script);
 956                 target->reset_script = strdup(args[2]);
 957         }
 958         else if (strcmp(args[1], "post_halt") == 0)
 959         {
 960                 if (target->post_halt_script)
 961                         free(target->post_halt_script);
 962                 target->post_halt_script = strdup(args[2]);
 963         }
 964         else if (strcmp(args[1], "pre_resume") == 0)
 965         {
 966                 if (target->pre_resume_script)
 967                         free(target->pre_resume_script);
 968                 target->pre_resume_script = strdup(args[2]);
 969         }
 970         else
 971         {
 972                 ERROR("unknown event type: '%s", args[1]);
 973                 exit(-1);
 974         }
 975
 976         return ERROR_OK;
 977 }
 978
 979 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 980 {
 981         target_t *target = NULL;
 982
 983         if (argc < 2)
 984         {
 985                 ERROR("incomplete run_and_halt_time command");
 986                 exit(-1);
 987         }
 988
 989         target = get_target_by_num(strtoul(args[0], NULL, 0));
 990
 991         if (!target)
 992         {
 993                 ERROR("target number '%s' not defined", args[0]);
 994                 exit(-1);
 995         }
 996
 997         target->run_and_halt_time = strtoul(args[1], NULL, 0);
 998
 999         return ERROR_OK;
1000 }
1001
1002 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1003 {
1004         target_t *target = NULL;
1005
1006         if (argc < 4)
1007         {
1008                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1009                 exit(-1);
1010         }
1011
1012         target = get_target_by_num(strtoul(args[0], NULL, 0));
1013
1014         if (!target)
1015         {
1016                 ERROR("target number '%s' not defined", args[0]);
1017                 exit(-1);
1018         }
1019
1020         target->working_area = strtoul(args[1], NULL, 0);
1021         target->working_area_size = strtoul(args[2], NULL, 0);
1022
1023         if (strcmp(args[3], "backup") == 0)
1024         {
1025                 target->backup_working_area = 1;
1026         }
1027         else if (strcmp(args[3], "nobackup") == 0)
1028         {
1029                 target->backup_working_area = 0;
1030         }
1031         else
1032         {
1033                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1034                 exit(-1);
1035         }
1036
1037         return ERROR_OK;
1038 }
1039
1040
1041 /* process target state changes */
1042 int handle_target(void *priv)
1043 {
1044         int retval;
1045         target_t *target = targets;
1046
1047         while (target)
1048         {
1049                 /* only poll if target isn't already halted */
1050                 if (target->state != TARGET_HALTED)
1051                 {
1052                         if (target_continous_poll)
1053                                 if ((retval = target->type->poll(target)) < 0)
1054                                 {
1055                                         ERROR("couldn't poll target, exiting");
1056                                         exit(-1);
1057                                 }
1058                 }
1059
1060                 target = target->next;
1061         }
1062
1063         return ERROR_OK;
1064 }
1065
1066 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1067 {
1068         target_t *target;
1069         reg_t *reg = NULL;
1070         int count = 0;
1071         char *value;
1072
1073         DEBUG("");
1074
1075         target = get_current_target(cmd_ctx);
1076
1077         /* list all available registers for the current target */
1078         if (argc == 0)
1079         {
1080                 reg_cache_t *cache = target->reg_cache;
1081
1082                 count = 0;
1083                 while(cache)
1084                 {
1085                         int i;
1086                         for (i = 0; i < cache->num_regs; i++)
1087                         {
1088                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1089                                 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);
1090                                 free(value);
1091                         }
1092                         cache = cache->next;
1093                 }
1094
1095                 return ERROR_OK;
1096         }
1097
1098         /* access a single register by its ordinal number */
1099         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1100         {
1101                 int num = strtoul(args[0], NULL, 0);
1102                 reg_cache_t *cache = target->reg_cache;
1103
1104                 count = 0;
1105                 while(cache)
1106                 {
1107                         int i;
1108                         for (i = 0; i < cache->num_regs; i++)
1109                         {
1110                                 if (count++ == num)
1111                                 {
1112                                         reg = &cache->reg_list[i];
1113                                         break;
1114                                 }
1115                         }
1116                         if (reg)
1117                                 break;
1118                         cache = cache->next;
1119                 }
1120
1121                 if (!reg)
1122                 {
1123                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1124                         return ERROR_OK;
1125                 }
1126         } else /* access a single register by its name */
1127         {
1128                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1129
1130                 if (!reg)
1131                 {
1132                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1133                         return ERROR_OK;
1134                 }
1135         }
1136
1137         /* display a register */
1138         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1139         {
1140                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1141                         reg->valid = 0;
1142
1143                 if (reg->valid == 0)
1144                 {
1145                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1146                         if (arch_type == NULL)
1147                         {
1148                                 ERROR("BUG: encountered unregistered arch type");
1149                                 return ERROR_OK;
1150                         }
1151                         arch_type->get(reg);
1152                 }
1153                 value = buf_to_str(reg->value, reg->size, 16);
1154                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1155                 free(value);
1156                 return ERROR_OK;
1157         }
1158
1159         /* set register value */
1160         if (argc == 2)
1161         {
1162                 u8 *buf = malloc(CEIL(reg->size, 8));
1163                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1164
1165                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1166                 if (arch_type == NULL)
1167                 {
1168                         ERROR("BUG: encountered unregistered arch type");
1169                         return ERROR_OK;
1170                 }
1171
1172                 arch_type->set(reg, buf);
1173
1174                 value = buf_to_str(reg->value, reg->size, 16);
1175                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1176                 free(value);
1177
1178                 free(buf);
1179
1180                 return ERROR_OK;
1181         }
1182
1183         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1184
1185         return ERROR_OK;
1186 }
1187
1188 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1189 {
1190         target_t *target = get_current_target(cmd_ctx);
1191         char buffer[512];
1192
1193         if (argc == 0)
1194         {
1195                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1196                 if (target->state == TARGET_HALTED)
1197                 {
1198                         target->type->arch_state(target, buffer, 512);
1199                         buffer[511] = 0;
1200                         command_print(cmd_ctx, "%s", buffer);
1201                 }
1202         }
1203         else
1204         {
1205                 if (strcmp(args[0], "on") == 0)
1206                 {
1207                         target_continous_poll = 1;
1208                 }
1209                 else if (strcmp(args[0], "off") == 0)
1210                 {
1211                         target_continous_poll = 0;
1212                 }
1213         }
1214
1215
1216         return ERROR_OK;
1217 }
1218
1219 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1220 {
1221         target_t *target = get_current_target(cmd_ctx);
1222         struct timeval timeout, now;
1223
1224         gettimeofday(&timeout, NULL);
1225         timeval_add_time(&timeout, 5, 0);
1226
1227         command_print(cmd_ctx, "waiting for target halted...");
1228
1229         while(target->type->poll(target))
1230         {
1231                 if (target->state == TARGET_HALTED)
1232                 {
1233                         command_print(cmd_ctx, "target halted");
1234                         break;
1235                 }
1236                 target_call_timer_callbacks();
1237
1238                 gettimeofday(&now, NULL);
1239                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1240                 {
1241                         command_print(cmd_ctx, "timed out while waiting for target halt");
1242                         ERROR("timed out while waiting for target halt");
1243                         break;
1244                 }
1245         }
1246
1247         return ERROR_OK;
1248 }
1249
1250 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1251 {
1252         int retval;
1253         target_t *target = get_current_target(cmd_ctx);
1254
1255         DEBUG("");
1256
1257         command_print(cmd_ctx, "requesting target halt...");
1258
1259         if ((retval = target->type->halt(target)) != ERROR_OK)
1260         {
1261                 switch (retval)
1262                 {
1263                         case ERROR_TARGET_ALREADY_HALTED:
1264                                 command_print(cmd_ctx, "target already halted");
1265                                 break;
1266                         case ERROR_TARGET_TIMEOUT:
1267                                 command_print(cmd_ctx, "target timed out... shutting down");
1268                                 exit(-1);
1269                         default:
1270                                 command_print(cmd_ctx, "unknown error... shutting down");
1271                                 exit(-1);
1272                 }
1273         }
1274
1275         return ERROR_OK;
1276
1277 }
1278
1279 /* what to do on daemon startup */
1280 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1281 {
1282         if (argc == 1)
1283         {
1284                 if (strcmp(args[0], "attach") == 0)
1285                 {
1286                         startup_mode = DAEMON_ATTACH;
1287                         return ERROR_OK;
1288                 }
1289                 else if (strcmp(args[0], "reset") == 0)
1290                 {
1291                         startup_mode = DAEMON_RESET;
1292                         return ERROR_OK;
1293                 }
1294         }
1295
1296         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1297         return ERROR_OK;
1298
1299 }
1300
1301 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1302 {
1303         target_t *target = get_current_target(cmd_ctx);
1304         int retval;
1305
1306         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1307
1308         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1309         {
1310                 switch (retval)
1311                 {
1312                         case ERROR_TARGET_TIMEOUT:
1313                                 command_print(cmd_ctx, "target timed out... shutting down");
1314                                 exit(-1);
1315                         default:
1316                                 command_print(cmd_ctx, "unknown error... shutting down");
1317                                 exit(-1);
1318                 }
1319         }
1320
1321         return ERROR_OK;
1322 }
1323
1324 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1325 {
1326         target_t *target = get_current_target(cmd_ctx);
1327         enum target_reset_mode reset_mode = RESET_RUN;
1328
1329         DEBUG("");
1330
1331         if (argc >= 1)
1332         {
1333                 if (strcmp("run", args[0]) == 0)
1334                         reset_mode = RESET_RUN;
1335                 else if (strcmp("halt", args[0]) == 0)
1336                         reset_mode = RESET_HALT;
1337                 else if (strcmp("init", args[0]) == 0)
1338                         reset_mode = RESET_INIT;
1339                 else if (strcmp("run_and_halt", args[0]) == 0)
1340                 {
1341                         reset_mode = RESET_RUN_AND_HALT;
1342                         if (argc >= 2)
1343                         {
1344                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1345                         }
1346                 }
1347                 else if (strcmp("run_and_init", args[0]) == 0)
1348                 {
1349                         reset_mode = RESET_RUN_AND_INIT;
1350                         if (argc >= 2)
1351                         {
1352                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1353                         }
1354                 }
1355                 else
1356                 {
1357                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1358                         return ERROR_OK;
1359                 }
1360                 target->reset_mode = reset_mode;
1361         }
1362
1363         target_process_reset(cmd_ctx);
1364
1365         return ERROR_OK;
1366 }
1367
1368 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1369 {
1370         int retval;
1371         target_t *target = get_current_target(cmd_ctx);
1372
1373         DEBUG("");
1374
1375         if (argc == 0)
1376                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1377         else if (argc == 1)
1378                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1379         else
1380         {
1381                 command_print(cmd_ctx, "usage: resume [address]");
1382                 return ERROR_OK;
1383         }
1384
1385         if (retval != ERROR_OK)
1386         {
1387                 switch (retval)
1388                 {
1389                         case ERROR_TARGET_NOT_HALTED:
1390                                 command_print(cmd_ctx, "target not halted");
1391                                 break;
1392                         default:
1393                                 command_print(cmd_ctx, "unknown error... shutting down");
1394                                 exit(-1);
1395                 }
1396         }
1397
1398         return ERROR_OK;
1399 }
1400
1401 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1402 {
1403         target_t *target = get_current_target(cmd_ctx);
1404
1405         DEBUG("");
1406
1407         if (argc == 0)
1408                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1409
1410         if (argc == 1)
1411                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1412
1413         return ERROR_OK;
1414 }
1415
1416 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1417 {
1418         int count = 1;
1419         int size = 4;
1420         u32 address = 0;
1421         int i;
1422
1423         char output[128];
1424         int output_len;
1425
1426         int retval;
1427
1428         u8 *buffer;
1429         target_t *target = get_current_target(cmd_ctx);
1430
1431         if (argc < 1)
1432                 return ERROR_OK;
1433
1434         if (argc == 2)
1435                 count = strtoul(args[1], NULL, 0);
1436
1437         address = strtoul(args[0], NULL, 0);
1438
1439
1440         switch (cmd[2])
1441         {
1442                 case 'w':
1443                         size = 4;
1444                         break;
1445                 case 'h':
1446                         size = 2;
1447                         break;
1448                 case 'b':
1449                         size = 1;
1450                         break;
1451                 default:
1452                         return ERROR_OK;
1453         }
1454
1455         buffer = calloc(count, size);
1456         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1457         {
1458                 switch (retval)
1459                 {
1460                         case ERROR_TARGET_UNALIGNED_ACCESS:
1461                                 command_print(cmd_ctx, "error: address not aligned");
1462                                 break;
1463                         case ERROR_TARGET_NOT_HALTED:
1464                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1465                                 break;
1466                         case ERROR_TARGET_DATA_ABORT:
1467                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1468                                 break;
1469                         default:
1470                                 command_print(cmd_ctx, "error: unknown error");
1471                                 break;
1472                 }
1473                 return ERROR_OK;
1474         }
1475
1476         output_len = 0;
1477
1478         for (i = 0; i < count; i++)
1479         {
1480                 if (i%8 == 0)
1481                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1482
1483                 switch (size)
1484                 {
1485                         case 4:
1486                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1487                                 break;
1488                         case 2:
1489                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1490                                 break;
1491                         case 1:
1492                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1493                                 break;
1494                 }
1495
1496                 if ((i%8 == 7) || (i == count - 1))
1497                 {
1498                         command_print(cmd_ctx, output);
1499                         output_len = 0;
1500                 }
1501         }
1502
1503         free(buffer);
1504
1505         return ERROR_OK;
1506 }
1507
1508 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1509 {
1510         u32 address = 0;
1511         u32 value = 0;
1512         int retval;
1513         target_t *target = get_current_target(cmd_ctx);
1514         u8 value_buf[4];
1515
1516         if (argc < 2)
1517                 return ERROR_OK;
1518
1519         address = strtoul(args[0], NULL, 0);
1520         value = strtoul(args[1], NULL, 0);
1521
1522         switch (cmd[2])
1523         {
1524                 case 'w':
1525                         target_buffer_set_u32(target, value_buf, value);
1526                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1527                         break;
1528                 case 'h':
1529                         target_buffer_set_u16(target, value_buf, value);
1530                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1531                         break;
1532                 case 'b':
1533                         value_buf[0] = value;
1534                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1535                         break;
1536                 default:
1537                         return ERROR_OK;
1538         }
1539
1540         switch (retval)
1541         {
1542                 case ERROR_TARGET_UNALIGNED_ACCESS:
1543                         command_print(cmd_ctx, "error: address not aligned");
1544                         break;
1545                 case ERROR_TARGET_DATA_ABORT:
1546                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1547                         break;
1548                 case ERROR_TARGET_NOT_HALTED:
1549                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1550                         break;
1551                 case ERROR_OK:
1552                         break;
1553                 default:
1554                         command_print(cmd_ctx, "error: unknown error");
1555                         break;
1556         }
1557
1558         return ERROR_OK;
1559
1560 }
1561
1562 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1563 {
1564         FILE *binary;
1565         u32 address;
1566         struct stat binary_stat;
1567         u32 binary_size;
1568
1569         u8 *buffer;
1570         u32 buf_cnt;
1571
1572         struct timeval start, end, duration;
1573
1574         target_t *target = get_current_target(cmd_ctx);
1575
1576         if (argc != 2)
1577         {
1578                 command_print(cmd_ctx, "usage: load_binary <filename> <address>");
1579                 return ERROR_OK;
1580         }
1581
1582         address = strtoul(args[1], NULL, 0);
1583
1584         if (stat(args[0], &binary_stat) == -1)
1585         {
1586                 ERROR("couldn't stat() %s: %s", args[0], strerror(errno));
1587                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1588                 return ERROR_OK;
1589         }
1590
1591         if (!(binary = fopen(args[0], "rb")))
1592         {
1593                 ERROR("couldn't open %s: %s", args[0], strerror(errno));
1594                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1595                 return ERROR_OK;
1596         }
1597
1598         buffer = malloc(128 * 1024);
1599
1600         gettimeofday(&start, NULL);
1601
1602         binary_size = binary_stat.st_size;
1603         while (binary_size > 0)
1604         {
1605                 buf_cnt = fread(buffer, 1, 128*1024, binary);
1606                 target_write_buffer(target, address, buf_cnt, buffer);
1607                 address += buf_cnt;
1608                 binary_size -= buf_cnt;
1609         }
1610
1611         gettimeofday(&end, NULL);
1612
1613         free(buffer);
1614
1615         timeval_subtract(&duration, &end, &start);
1616         command_print(cmd_ctx, "downloaded %lli byte in %is %ius", (long long) binary_stat.st_size, duration.tv_sec, duration.tv_usec);
1617
1618         fclose(binary);
1619
1620         return ERROR_OK;
1621
1622 }
1623
1624 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1625 {
1626         FILE *binary;
1627         u32 address;
1628         u32 size;
1629         u8 buffer[560];
1630
1631         struct timeval start, end, duration;
1632
1633         target_t *target = get_current_target(cmd_ctx);
1634
1635         if (argc != 3)
1636         {
1637                 command_print(cmd_ctx, "usage: dump_binary <filename> <address> <size>");
1638                 return ERROR_OK;
1639         }
1640
1641         address = strtoul(args[1], NULL, 0);
1642         size = strtoul(args[2], NULL, 0);
1643
1644         if (!(binary = fopen(args[0], "wb")))
1645         {
1646                 ERROR("couldn't open %s for writing: %s", args[0], strerror(errno));
1647                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1648                 return ERROR_OK;
1649         }
1650
1651         if ((address & 3) || (size & 3))
1652         {
1653                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1654                 return ERROR_OK;
1655         }
1656
1657         gettimeofday(&start, NULL);
1658
1659         while (size > 0)
1660         {
1661                 u32 this_run_size = (size > 560) ? 560 : size;
1662                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1663                 fwrite(buffer, 1, this_run_size, binary);
1664                 size -= this_run_size;
1665                 address += this_run_size;
1666         }
1667
1668         fclose(binary);
1669
1670         gettimeofday(&end, NULL);
1671
1672         timeval_subtract(&duration, &end, &start);
1673         command_print(cmd_ctx, "dumped %i byte in %is %ius", strtoul(args[2], NULL, 0), duration.tv_sec, duration.tv_usec);
1674
1675         return ERROR_OK;
1676
1677 }
1678
1679 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1680 {
1681         int retval;
1682         target_t *target = get_current_target(cmd_ctx);
1683
1684         if (argc == 0)
1685         {
1686                 breakpoint_t *breakpoint = target->breakpoints;
1687
1688                 while (breakpoint)
1689                 {
1690                         if (breakpoint->type == BKPT_SOFT)
1691                         {
1692                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
1693                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1694                                 free(buf);
1695                         }
1696                         else
1697                         {
1698                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1699                         }
1700                         breakpoint = breakpoint->next;
1701                 }
1702         }
1703         else if (argc >= 2)
1704         {
1705                 int hw = BKPT_SOFT;
1706                 u32 length = 0;
1707
1708                 length = strtoul(args[1], NULL, 0);
1709
1710                 if (argc >= 3)
1711                         if (strcmp(args[2], "hw") == 0)
1712                                 hw = BKPT_HARD;
1713
1714                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1715                 {
1716                         switch (retval)
1717                         {
1718                                 case ERROR_TARGET_NOT_HALTED:
1719                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1720                                         break;
1721                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1722                                         command_print(cmd_ctx, "no more breakpoints available");
1723                                         break;
1724                                 default:
1725                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1726                                         break;
1727                         }
1728                 }
1729                 else
1730                 {
1731                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
1732                 }
1733         }
1734         else
1735         {
1736                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
1737         }
1738
1739         return ERROR_OK;
1740 }
1741
1742 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1743 {
1744         target_t *target = get_current_target(cmd_ctx);
1745
1746         if (argc > 0)
1747                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1748
1749         return ERROR_OK;
1750 }
1751
1752 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1753 {
1754         target_t *target = get_current_target(cmd_ctx);
1755
1756         if (argc == 0)
1757         {
1758                 watchpoint_t *watchpoint = target->watchpoints;
1759
1760                 while (watchpoint)
1761                 {
1762                         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);
1763                         watchpoint = watchpoint->next;
1764                 }
1765         }
1766         else if (argc >= 2)
1767         {
1768                 enum watchpoint_rw type = WPT_ACCESS;
1769                 u32 data_value = 0x0;
1770                 u32 data_mask = 0xffffffff;
1771
1772                 if (argc >= 3)
1773                 {
1774                         switch(args[2][0])
1775                         {
1776                                 case 'r':
1777                                         type = WPT_READ;
1778                                         break;
1779                                 case 'w':
1780                                         type = WPT_WRITE;
1781                                         break;
1782                                 case 'a':
1783                                         type = WPT_ACCESS;
1784                                         break;
1785                                 default:
1786                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1787                                         return ERROR_OK;
1788                         }
1789                 }
1790                 if (argc >= 4)
1791                 {
1792                         data_value = strtoul(args[3], NULL, 0);
1793                 }
1794                 if (argc >= 5)
1795                 {
1796                         data_mask = strtoul(args[4], NULL, 0);
1797                 }
1798                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1799         }
1800         else
1801         {
1802                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1803         }
1804
1805         return ERROR_OK;
1806 }
1807
1808 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1809 {
1810         target_t *target = get_current_target(cmd_ctx);
1811
1812         if (argc > 0)
1813                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1814
1815         return ERROR_OK;
1816 }
1817