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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 #include <fileio.h>
  46
  47 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  48
  49 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  51 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52
  53 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56
  57 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73
  74 /* targets
  75  */
  76 extern target_type_t arm7tdmi_target;
  77 extern target_type_t arm720t_target;
  78 extern target_type_t arm9tdmi_target;
  79 extern target_type_t arm920t_target;
  80 extern target_type_t arm966e_target;
  81 extern target_type_t arm926ejs_target;
  82
  83 target_type_t *target_types[] =
  84 {
  85         &arm7tdmi_target,
  86         &arm9tdmi_target,
  87         &arm920t_target,
  88         &arm720t_target,
  89         &arm966e_target,
  90         &arm926ejs_target,
  91         NULL,
  92 };
  93
  94 target_t *targets = NULL;
  95 target_event_callback_t *target_event_callbacks = NULL;
  96 target_timer_callback_t *target_timer_callbacks = NULL;
  97
  98 char *target_state_strings[] =
  99 {
 100         "unknown",
 101         "running",
 102         "halted",
 103         "reset",
 104         "debug_running",
 105 };
 106
 107 char *target_debug_reason_strings[] =
 108 {
 109         "debug request", "breakpoint", "watchpoint",
 110         "watchpoint and breakpoint", "single step",
 111         "target not halted"
 112 };
 113
 114 char *target_endianess_strings[] =
 115 {
 116         "big endian",
 117         "little endian",
 118 };
 119
 120 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 121
 122 static int target_continous_poll = 1;
 123
 124 /* read a u32 from a buffer in target memory endianness */
 125 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 126 {
 127         if (target->endianness == TARGET_LITTLE_ENDIAN)
 128                 return le_to_h_u32(buffer);
 129         else
 130                 return be_to_h_u32(buffer);
 131 }
 132
 133 /* read a u16 from a buffer in target memory endianness */
 134 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 135 {
 136         if (target->endianness == TARGET_LITTLE_ENDIAN)
 137                 return le_to_h_u16(buffer);
 138         else
 139                 return be_to_h_u16(buffer);
 140 }
 141
 142 /* write a u32 to a buffer in target memory endianness */
 143 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 144 {
 145         if (target->endianness == TARGET_LITTLE_ENDIAN)
 146                 h_u32_to_le(buffer, value);
 147         else
 148                 h_u32_to_be(buffer, value);
 149 }
 150
 151 /* write a u16 to a buffer in target memory endianness */
 152 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 153 {
 154         if (target->endianness == TARGET_LITTLE_ENDIAN)
 155                 h_u16_to_le(buffer, value);
 156         else
 157                 h_u16_to_be(buffer, value);
 158 }
 159
 160 /* returns a pointer to the n-th configured target */
 161 target_t* get_target_by_num(int num)
 162 {
 163         target_t *target = targets;
 164         int i = 0;
 165
 166         while (target)
 167         {
 168                 if (num == i)
 169                         return target;
 170                 target = target->next;
 171                 i++;
 172         }
 173
 174         return NULL;
 175 }
 176
 177 int get_num_by_target(target_t *query_target)
 178 {
 179         target_t *target = targets;
 180         int i = 0;
 181
 182         while (target)
 183         {
 184                 if (target == query_target)
 185                         return i;
 186                 target = target->next;
 187                 i++;
 188         }
 189
 190         return -1;
 191 }
 192
 193 target_t* get_current_target(command_context_t *cmd_ctx)
 194 {
 195         target_t *target = get_target_by_num(cmd_ctx->current_target);
 196
 197         if (target == NULL)
 198         {
 199                 ERROR("BUG: current_target out of bounds");
 200                 exit(-1);
 201         }
 202
 203         return target;
 204 }
 205
 206 /* Process target initialization, when target entered debug out of reset
 207  * the handler is unregistered at the end of this function, so it's only called once
 208  */
 209 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 210 {
 211         FILE *script;
 212         struct command_context_s *cmd_ctx = priv;
 213
 214         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 215         {
 216                 target_unregister_event_callback(target_init_handler, priv);
 217
 218                 script = fopen(target->reset_script, "r");
 219                 if (!script)
 220                 {
 221                         ERROR("couldn't open script file %s", target->reset_script);
 222                                 return ERROR_OK;
 223                 }
 224
 225                 INFO("executing reset script '%s'", target->reset_script);
 226                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 227                 fclose(script);
 228
 229                 jtag_execute_queue();
 230         }
 231
 232         return ERROR_OK;
 233 }
 234
 235 int target_run_and_halt_handler(void *priv)
 236 {
 237         target_t *target = priv;
 238
 239         target->type->halt(target);
 240
 241         return ERROR_OK;
 242 }
 243
 244 int target_process_reset(struct command_context_s *cmd_ctx)
 245 {
 246         int retval = ERROR_OK;
 247         target_t *target;
 248
 249         target = targets;
 250         while (target)
 251         {
 252                 target->type->assert_reset(target);
 253                 target = target->next;
 254         }
 255         jtag_execute_queue();
 256
 257         /* request target halt if necessary, and schedule further action */
 258         target = targets;
 259         while (target)
 260         {
 261                 switch (target->reset_mode)
 262                 {
 263                         case RESET_RUN:
 264                                 /* nothing to do if target just wants to be run */
 265                                 break;
 266                         case RESET_RUN_AND_HALT:
 267                                 /* schedule halt */
 268                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 269                                 break;
 270                         case RESET_RUN_AND_INIT:
 271                                 /* schedule halt */
 272                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 273                                 target_register_event_callback(target_init_handler, cmd_ctx);
 274                                 break;
 275                         case RESET_HALT:
 276                                 target->type->halt(target);
 277                                 break;
 278                         case RESET_INIT:
 279                                 target->type->halt(target);
 280                                 target_register_event_callback(target_init_handler, cmd_ctx);
 281                                 break;
 282                         default:
 283                                 ERROR("BUG: unknown target->reset_mode");
 284                 }
 285                 target = target->next;
 286         }
 287
 288         target = targets;
 289         while (target)
 290         {
 291                 target->type->deassert_reset(target);
 292                 target = target->next;
 293         }
 294         jtag_execute_queue();
 295
 296         return retval;
 297 }
 298
 299 int target_init(struct command_context_s *cmd_ctx)
 300 {
 301         target_t *target = targets;
 302
 303         while (target)
 304         {
 305                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 306                 {
 307                         ERROR("target '%s' init failed", target->type->name);
 308                         exit(-1);
 309                 }
 310                 target = target->next;
 311         }
 312
 313         if (targets)
 314         {
 315                 target_register_user_commands(cmd_ctx);
 316                 target_register_timer_callback(handle_target, 100, 1, NULL);
 317         }
 318
 319         if (startup_mode == DAEMON_RESET)
 320                 target_process_reset(cmd_ctx);
 321
 322         return ERROR_OK;
 323 }
 324
 325 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 326 {
 327         target_event_callback_t **callbacks_p = &target_event_callbacks;
 328
 329         if (callback == NULL)
 330         {
 331                 return ERROR_INVALID_ARGUMENTS;
 332         }
 333
 334         if (*callbacks_p)
 335         {
 336                 while ((*callbacks_p)->next)
 337                         callbacks_p = &((*callbacks_p)->next);
 338                 callbacks_p = &((*callbacks_p)->next);
 339         }
 340
 341         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 342         (*callbacks_p)->callback = callback;
 343         (*callbacks_p)->priv = priv;
 344         (*callbacks_p)->next = NULL;
 345
 346         return ERROR_OK;
 347 }
 348
 349 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 350 {
 351         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 352         struct timeval now;
 353
 354         if (callback == NULL)
 355         {
 356                 return ERROR_INVALID_ARGUMENTS;
 357         }
 358
 359         if (*callbacks_p)
 360         {
 361                 while ((*callbacks_p)->next)
 362                         callbacks_p = &((*callbacks_p)->next);
 363                 callbacks_p = &((*callbacks_p)->next);
 364         }
 365
 366         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 367         (*callbacks_p)->callback = callback;
 368         (*callbacks_p)->periodic = periodic;
 369         (*callbacks_p)->time_ms = time_ms;
 370
 371         gettimeofday(&now, NULL);
 372         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 373         time_ms -= (time_ms % 1000);
 374         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 375         if ((*callbacks_p)->when.tv_usec > 1000000)
 376         {
 377                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 378                 (*callbacks_p)->when.tv_sec += 1;
 379         }
 380
 381         (*callbacks_p)->priv = priv;
 382         (*callbacks_p)->next = NULL;
 383
 384         return ERROR_OK;
 385 }
 386
 387 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 388 {
 389         target_event_callback_t **p = &target_event_callbacks;
 390         target_event_callback_t *c = target_event_callbacks;
 391
 392         if (callback == NULL)
 393         {
 394                 return ERROR_INVALID_ARGUMENTS;
 395         }
 396
 397         while (c)
 398         {
 399                 target_event_callback_t *next = c->next;
 400                 if ((c->callback == callback) && (c->priv == priv))
 401                 {
 402                         *p = next;
 403                         free(c);
 404                         return ERROR_OK;
 405                 }
 406                 else
 407                         p = &(c->next);
 408                 c = next;
 409         }
 410
 411         return ERROR_OK;
 412 }
 413
 414 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 415 {
 416         target_timer_callback_t **p = &target_timer_callbacks;
 417         target_timer_callback_t *c = target_timer_callbacks;
 418
 419         if (callback == NULL)
 420         {
 421                 return ERROR_INVALID_ARGUMENTS;
 422         }
 423
 424         while (c)
 425         {
 426                 target_timer_callback_t *next = c->next;
 427                 if ((c->callback == callback) && (c->priv == priv))
 428                 {
 429                         *p = next;
 430                         free(c);
 431                         return ERROR_OK;
 432                 }
 433                 else
 434                         p = &(c->next);
 435                 c = next;
 436         }
 437
 438         return ERROR_OK;
 439 }
 440
 441 int target_call_event_callbacks(target_t *target, enum target_event event)
 442 {
 443         target_event_callback_t *callback = target_event_callbacks;
 444         target_event_callback_t *next_callback;
 445
 446         DEBUG("target event %i", event);
 447
 448         while (callback)
 449         {
 450                 next_callback = callback->next;
 451                 callback->callback(target, event, callback->priv);
 452                 callback = next_callback;
 453         }
 454
 455         return ERROR_OK;
 456 }
 457
 458 int target_call_timer_callbacks()
 459 {
 460         target_timer_callback_t *callback = target_timer_callbacks;
 461         target_timer_callback_t *next_callback;
 462         struct timeval now;
 463
 464         gettimeofday(&now, NULL);
 465
 466         while (callback)
 467         {
 468                 next_callback = callback->next;
 469
 470                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 471                         || (now.tv_sec > callback->when.tv_sec))
 472                 {
 473                         callback->callback(callback->priv);
 474                         if (callback->periodic)
 475                         {
 476                                 int time_ms = callback->time_ms;
 477                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 478                                 time_ms -= (time_ms % 1000);
 479                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 480                                 if (callback->when.tv_usec > 1000000)
 481                                 {
 482                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 483                                         callback->when.tv_sec += 1;
 484                                 }
 485                         }
 486                         else
 487                                 target_unregister_timer_callback(callback->callback, callback->priv);
 488                 }
 489
 490                 callback = next_callback;
 491         }
 492
 493         return ERROR_OK;
 494 }
 495
 496 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 497 {
 498         working_area_t *c = target->working_areas;
 499         working_area_t *new_wa = NULL;
 500
 501         /* only allocate multiples of 4 byte */
 502         if (size % 4)
 503         {
 504                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 505                 size = CEIL(size, 4);
 506         }
 507
 508         /* see if there's already a matching working area */
 509         while (c)
 510         {
 511                 if ((c->free) && (c->size == size))
 512                 {
 513                         new_wa = c;
 514                         break;
 515                 }
 516                 c = c->next;
 517         }
 518
 519         /* if not, allocate a new one */
 520         if (!new_wa)
 521         {
 522                 working_area_t **p = &target->working_areas;
 523                 u32 first_free = target->working_area;
 524                 u32 free_size = target->working_area_size;
 525
 526                 DEBUG("allocating new working area");
 527
 528                 c = target->working_areas;
 529                 while (c)
 530                 {
 531                         first_free += c->size;
 532                         free_size -= c->size;
 533                         p = &c->next;
 534                         c = c->next;
 535                 }
 536
 537                 if (free_size < size)
 538                 {
 539                         WARNING("not enough working area available");
 540                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 541                 }
 542
 543                 new_wa = malloc(sizeof(working_area_t));
 544                 new_wa->next = NULL;
 545                 new_wa->size = size;
 546                 new_wa->address = first_free;
 547
 548                 if (target->backup_working_area)
 549                 {
 550                         new_wa->backup = malloc(new_wa->size);
 551                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 552                 }
 553                 else
 554                 {
 555                         new_wa->backup = NULL;
 556                 }
 557
 558                 /* put new entry in list */
 559                 *p = new_wa;
 560         }
 561
 562         /* mark as used, and return the new (reused) area */
 563         new_wa->free = 0;
 564         *area = new_wa;
 565
 566         /* user pointer */
 567         new_wa->user = area;
 568
 569         return ERROR_OK;
 570 }
 571
 572 int target_free_working_area(struct target_s *target, working_area_t *area)
 573 {
 574         if (area->free)
 575                 return ERROR_OK;
 576
 577         if (target->backup_working_area)
 578                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 579
 580         area->free = 1;
 581
 582         /* mark user pointer invalid */
 583         *area->user = NULL;
 584         area->user = NULL;
 585
 586         return ERROR_OK;
 587 }
 588
 589 int target_free_all_working_areas(struct target_s *target)
 590 {
 591         working_area_t *c = target->working_areas;
 592
 593         while (c)
 594         {
 595                 working_area_t *next = c->next;
 596                 target_free_working_area(target, c);
 597
 598                 if (c->backup)
 599                         free(c->backup);
 600
 601                 free(c);
 602
 603                 c = next;
 604         }
 605
 606         target->working_areas = NULL;
 607
 608         return ERROR_OK;
 609 }
 610
 611 int target_register_commands(struct command_context_s *cmd_ctx)
 612 {
 613         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 614         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 615         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 616         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 617         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 618         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 619
 620         return ERROR_OK;
 621 }
 622
 623 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 624 {
 625         int retval;
 626
 627         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 628
 629         /* handle writes of less than 4 byte */
 630         if (size < 4)
 631         {
 632                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 633                         return retval;
 634         }
 635
 636         /* handle unaligned head bytes */
 637         if (address % 4)
 638         {
 639                 int unaligned = 4 - (address % 4);
 640
 641                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 642                         return retval;
 643
 644                 buffer += unaligned;
 645                 address += unaligned;
 646                 size -= unaligned;
 647         }
 648
 649         /* handle aligned words */
 650         if (size >= 4)
 651         {
 652                 int aligned = size - (size % 4);
 653
 654                 /* use bulk writes above a certain limit. This may have to be changed */
 655                 if (aligned > 128)
 656                 {
 657                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 658                                 return retval;
 659                 }
 660                 else
 661                 {
 662                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 663                                 return retval;
 664                 }
 665
 666                 buffer += aligned;
 667                 address += aligned;
 668                 size -= aligned;
 669         }
 670
 671         /* handle tail writes of less than 4 bytes */
 672         if (size > 0)
 673         {
 674                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 675                         return retval;
 676         }
 677
 678         return ERROR_OK;
 679 }
 680
 681 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 682 {
 683         int retval;
 684
 685         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 686
 687         /* handle reads of less than 4 byte */
 688         if (size < 4)
 689         {
 690                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 691                         return retval;
 692         }
 693
 694         /* handle unaligned head bytes */
 695         if (address % 4)
 696         {
 697                 int unaligned = 4 - (address % 4);
 698
 699                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 700                         return retval;
 701
 702                 buffer += unaligned;
 703                 address += unaligned;
 704                 size -= unaligned;
 705         }
 706
 707         /* handle aligned words */
 708         if (size >= 4)
 709         {
 710                 int aligned = size - (size % 4);
 711
 712                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 713                         return retval;
 714
 715                 buffer += aligned;
 716                 address += aligned;
 717                 size -= aligned;
 718         }
 719
 720         /* handle tail writes of less than 4 bytes */
 721         if (size > 0)
 722         {
 723                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 724                         return retval;
 725         }
 726
 727         return ERROR_OK;
 728 }
 729
 730 void target_read_u32(struct target_s *target, u32 address, u32 *value)
 731 {
 732         u8 value_buf[4];
 733
 734         target->type->read_memory(target, address, 4, 1, value_buf);
 735
 736         *value = target_buffer_get_u32(target, value_buf);
 737
 738         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 739 }
 740
 741 void target_read_u16(struct target_s *target, u32 address, u16 *value)
 742 {
 743         u8 value_buf[2];
 744
 745         target->type->read_memory(target, address, 2, 1, value_buf);
 746
 747         *value = target_buffer_get_u16(target, value_buf);
 748
 749         DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
 750 }
 751
 752 void target_read_u8(struct target_s *target, u32 address, u8 *value)
 753 {
 754         target->type->read_memory(target, address, 1, 1, value);
 755
 756         DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
 757 }
 758
 759 void target_write_u32(struct target_s *target, u32 address, u32 value)
 760 {
 761         u8 value_buf[4];
 762
 763         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 764
 765         target_buffer_set_u32(target, value_buf, value);
 766         target->type->write_memory(target, address, 4, 1, value_buf);
 767 }
 768
 769 void target_write_u16(struct target_s *target, u32 address, u16 value)
 770 {
 771         u8 value_buf[2];
 772
 773         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 774
 775         target_buffer_set_u16(target, value_buf, value);
 776         target->type->write_memory(target, address, 2, 1, value_buf);
 777 }
 778
 779 void target_write_u8(struct target_s *target, u32 address, u8 value)
 780 {
 781         DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
 782
 783         target->type->read_memory(target, address, 1, 1, &value);
 784 }
 785
 786 int target_register_user_commands(struct command_context_s *cmd_ctx)
 787 {
 788         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 789         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 790         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
 791         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 792         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 793         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 794         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 795         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 796
 797         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 798         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 799         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 800
 801         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 802         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 803         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 804
 805         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 806         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 807         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 808         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 809
 810         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex']");
 811         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
 812         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
 813         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
 814
 815         return ERROR_OK;
 816 }
 817
 818 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 819 {
 820         target_t *target = targets;
 821         int count = 0;
 822
 823         if (argc == 1)
 824         {
 825                 int num = strtoul(args[0], NULL, 0);
 826
 827                 while (target)
 828                 {
 829                         count++;
 830                         target = target->next;
 831                 }
 832
 833                 if (num < count)
 834                         cmd_ctx->current_target = num;
 835                 else
 836                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 837
 838                 return ERROR_OK;
 839         }
 840
 841         while (target)
 842         {
 843                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 844                 target = target->next;
 845         }
 846
 847         return ERROR_OK;
 848 }
 849
 850 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 851 {
 852         int i;
 853         int found = 0;
 854
 855         if (argc < 3)
 856         {
 857                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 858                 exit(-1);
 859         }
 860
 861         /* search for the specified target */
 862         if (args[0] && (args[0][0] != 0))
 863         {
 864                 for (i = 0; target_types[i]; i++)
 865                 {
 866                         if (strcmp(args[0], target_types[i]->name) == 0)
 867                         {
 868                                 target_t **last_target_p = &targets;
 869
 870                                 /* register target specific commands */
 871                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 872                                 {
 873                                         ERROR("couldn't register '%s' commands", args[0]);
 874                                         exit(-1);
 875                                 }
 876
 877                                 if (*last_target_p)
 878                                 {
 879                                         while ((*last_target_p)->next)
 880                                                 last_target_p = &((*last_target_p)->next);
 881                                         last_target_p = &((*last_target_p)->next);
 882                                 }
 883
 884                                 *last_target_p = malloc(sizeof(target_t));
 885
 886                                 (*last_target_p)->type = target_types[i];
 887
 888                                 if (strcmp(args[1], "big") == 0)
 889                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 890                                 else if (strcmp(args[1], "little") == 0)
 891                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 892                                 else
 893                                 {
 894                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 895                                         exit(-1);
 896                                 }
 897
 898                                 /* what to do on a target reset */
 899                                 if (strcmp(args[2], "reset_halt") == 0)
 900                                         (*last_target_p)->reset_mode = RESET_HALT;
 901                                 else if (strcmp(args[2], "reset_run") == 0)
 902                                         (*last_target_p)->reset_mode = RESET_RUN;
 903                                 else if (strcmp(args[2], "reset_init") == 0)
 904                                         (*last_target_p)->reset_mode = RESET_INIT;
 905                                 else if (strcmp(args[2], "run_and_halt") == 0)
 906                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 907                                 else if (strcmp(args[2], "run_and_init") == 0)
 908                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 909                                 else
 910                                 {
 911                                         ERROR("unknown target startup mode %s", args[2]);
 912                                         exit(-1);
 913                                 }
 914                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 915
 916                                 (*last_target_p)->reset_script = NULL;
 917                                 (*last_target_p)->post_halt_script = NULL;
 918                                 (*last_target_p)->pre_resume_script = NULL;
 919
 920                                 (*last_target_p)->working_area = 0x0;
 921                                 (*last_target_p)->working_area_size = 0x0;
 922                                 (*last_target_p)->working_areas = NULL;
 923                                 (*last_target_p)->backup_working_area = 0;
 924
 925                                 (*last_target_p)->state = TARGET_UNKNOWN;
 926                                 (*last_target_p)->reg_cache = NULL;
 927                                 (*last_target_p)->breakpoints = NULL;
 928                                 (*last_target_p)->watchpoints = NULL;
 929                                 (*last_target_p)->next = NULL;
 930                                 (*last_target_p)->arch_info = NULL;
 931
 932                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 933
 934                                 found = 1;
 935                                 break;
 936                         }
 937                 }
 938         }
 939
 940         /* no matching target found */
 941         if (!found)
 942         {
 943                 ERROR("target '%s' not found", args[0]);
 944                 exit(-1);
 945         }
 946
 947         return ERROR_OK;
 948 }
 949
 950 /* usage: target_script <target#> <event> <script_file> */
 951 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 952 {
 953         target_t *target = NULL;
 954
 955         if (argc < 3)
 956         {
 957                 ERROR("incomplete target_script command");
 958                 exit(-1);
 959         }
 960
 961         target = get_target_by_num(strtoul(args[0], NULL, 0));
 962
 963         if (!target)
 964         {
 965                 ERROR("target number '%s' not defined", args[0]);
 966                 exit(-1);
 967         }
 968
 969         if (strcmp(args[1], "reset") == 0)
 970         {
 971                 if (target->reset_script)
 972                         free(target->reset_script);
 973                 target->reset_script = strdup(args[2]);
 974         }
 975         else if (strcmp(args[1], "post_halt") == 0)
 976         {
 977                 if (target->post_halt_script)
 978                         free(target->post_halt_script);
 979                 target->post_halt_script = strdup(args[2]);
 980         }
 981         else if (strcmp(args[1], "pre_resume") == 0)
 982         {
 983                 if (target->pre_resume_script)
 984                         free(target->pre_resume_script);
 985                 target->pre_resume_script = strdup(args[2]);
 986         }
 987         else
 988         {
 989                 ERROR("unknown event type: '%s", args[1]);
 990                 exit(-1);
 991         }
 992
 993         return ERROR_OK;
 994 }
 995
 996 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 997 {
 998         target_t *target = NULL;
 999
1000         if (argc < 2)
1001         {
1002                 ERROR("incomplete run_and_halt_time command");
1003                 exit(-1);
1004         }
1005
1006         target = get_target_by_num(strtoul(args[0], NULL, 0));
1007
1008         if (!target)
1009         {
1010                 ERROR("target number '%s' not defined", args[0]);
1011                 exit(-1);
1012         }
1013
1014         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1015
1016         return ERROR_OK;
1017 }
1018
1019 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1020 {
1021         target_t *target = NULL;
1022
1023         if (argc < 4)
1024         {
1025                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1026                 exit(-1);
1027         }
1028
1029         target = get_target_by_num(strtoul(args[0], NULL, 0));
1030
1031         if (!target)
1032         {
1033                 ERROR("target number '%s' not defined", args[0]);
1034                 exit(-1);
1035         }
1036
1037         target->working_area = strtoul(args[1], NULL, 0);
1038         target->working_area_size = strtoul(args[2], NULL, 0);
1039
1040         if (strcmp(args[3], "backup") == 0)
1041         {
1042                 target->backup_working_area = 1;
1043         }
1044         else if (strcmp(args[3], "nobackup") == 0)
1045         {
1046                 target->backup_working_area = 0;
1047         }
1048         else
1049         {
1050                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1051                 exit(-1);
1052         }
1053
1054         return ERROR_OK;
1055 }
1056
1057
1058 /* process target state changes */
1059 int handle_target(void *priv)
1060 {
1061         int retval;
1062         target_t *target = targets;
1063
1064         while (target)
1065         {
1066                 /* only poll if target isn't already halted */
1067                 if (target->state != TARGET_HALTED)
1068                 {
1069                         if (target_continous_poll)
1070                                 if ((retval = target->type->poll(target)) < 0)
1071                                 {
1072                                         ERROR("couldn't poll target, exiting");
1073                                         exit(-1);
1074                                 }
1075                 }
1076
1077                 target = target->next;
1078         }
1079
1080         return ERROR_OK;
1081 }
1082
1083 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1084 {
1085         target_t *target;
1086         reg_t *reg = NULL;
1087         int count = 0;
1088         char *value;
1089
1090         DEBUG("-");
1091
1092         target = get_current_target(cmd_ctx);
1093
1094         /* list all available registers for the current target */
1095         if (argc == 0)
1096         {
1097                 reg_cache_t *cache = target->reg_cache;
1098
1099                 count = 0;
1100                 while(cache)
1101                 {
1102                         int i;
1103                         for (i = 0; i < cache->num_regs; i++)
1104                         {
1105                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1106                                 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);
1107                                 free(value);
1108                         }
1109                         cache = cache->next;
1110                 }
1111
1112                 return ERROR_OK;
1113         }
1114
1115         /* access a single register by its ordinal number */
1116         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1117         {
1118                 int num = strtoul(args[0], NULL, 0);
1119                 reg_cache_t *cache = target->reg_cache;
1120
1121                 count = 0;
1122                 while(cache)
1123                 {
1124                         int i;
1125                         for (i = 0; i < cache->num_regs; i++)
1126                         {
1127                                 if (count++ == num)
1128                                 {
1129                                         reg = &cache->reg_list[i];
1130                                         break;
1131                                 }
1132                         }
1133                         if (reg)
1134                                 break;
1135                         cache = cache->next;
1136                 }
1137
1138                 if (!reg)
1139                 {
1140                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1141                         return ERROR_OK;
1142                 }
1143         } else /* access a single register by its name */
1144         {
1145                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1146
1147                 if (!reg)
1148                 {
1149                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1150                         return ERROR_OK;
1151                 }
1152         }
1153
1154         /* display a register */
1155         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1156         {
1157                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1158                         reg->valid = 0;
1159
1160                 if (reg->valid == 0)
1161                 {
1162                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1163                         if (arch_type == NULL)
1164                         {
1165                                 ERROR("BUG: encountered unregistered arch type");
1166                                 return ERROR_OK;
1167                         }
1168                         arch_type->get(reg);
1169                 }
1170                 value = buf_to_str(reg->value, reg->size, 16);
1171                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1172                 free(value);
1173                 return ERROR_OK;
1174         }
1175
1176         /* set register value */
1177         if (argc == 2)
1178         {
1179                 u8 *buf = malloc(CEIL(reg->size, 8));
1180                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1181
1182                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1183                 if (arch_type == NULL)
1184                 {
1185                         ERROR("BUG: encountered unregistered arch type");
1186                         return ERROR_OK;
1187                 }
1188
1189                 arch_type->set(reg, buf);
1190
1191                 value = buf_to_str(reg->value, reg->size, 16);
1192                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1193                 free(value);
1194
1195                 free(buf);
1196
1197                 return ERROR_OK;
1198         }
1199
1200         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1201
1202         return ERROR_OK;
1203 }
1204
1205 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1206 {
1207         target_t *target = get_current_target(cmd_ctx);
1208         char buffer[512];
1209
1210         if (argc == 0)
1211         {
1212                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1213                 if (target->state == TARGET_HALTED)
1214                 {
1215                         target->type->arch_state(target, buffer, 512);
1216                         buffer[511] = 0;
1217                         command_print(cmd_ctx, "%s", buffer);
1218                 }
1219         }
1220         else
1221         {
1222                 if (strcmp(args[0], "on") == 0)
1223                 {
1224                         target_continous_poll = 1;
1225                 }
1226                 else if (strcmp(args[0], "off") == 0)
1227                 {
1228                         target_continous_poll = 0;
1229                 }
1230         }
1231
1232
1233         return ERROR_OK;
1234 }
1235
1236 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1237 {
1238         target_t *target = get_current_target(cmd_ctx);
1239         struct timeval timeout, now;
1240
1241         gettimeofday(&timeout, NULL);
1242         if (!argc)
1243                 timeval_add_time(&timeout, 5, 0);
1244         else {
1245                 char *end;
1246
1247                 timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
1248                 if (*end) {
1249                         command_print(cmd_ctx, "usage: wait_halt [seconds]");
1250                         return ERROR_OK;
1251                 }
1252         }
1253
1254         command_print(cmd_ctx, "waiting for target halted...");
1255
1256         while(target->type->poll(target))
1257         {
1258                 if (target->state == TARGET_HALTED)
1259                 {
1260                         command_print(cmd_ctx, "target halted");
1261                         break;
1262                 }
1263                 target_call_timer_callbacks();
1264
1265                 gettimeofday(&now, NULL);
1266                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1267                 {
1268                         command_print(cmd_ctx, "timed out while waiting for target halt");
1269                         ERROR("timed out while waiting for target halt");
1270                         break;
1271                 }
1272         }
1273
1274         return ERROR_OK;
1275 }
1276
1277 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1278 {
1279         int retval;
1280         target_t *target = get_current_target(cmd_ctx);
1281
1282         DEBUG("-");
1283
1284         command_print(cmd_ctx, "requesting target halt...");
1285
1286         if ((retval = target->type->halt(target)) != ERROR_OK)
1287         {
1288                 switch (retval)
1289                 {
1290                         case ERROR_TARGET_ALREADY_HALTED:
1291                                 command_print(cmd_ctx, "target already halted");
1292                                 break;
1293                         case ERROR_TARGET_TIMEOUT:
1294                                 command_print(cmd_ctx, "target timed out... shutting down");
1295                                 exit(-1);
1296                         default:
1297                                 command_print(cmd_ctx, "unknown error... shutting down");
1298                                 exit(-1);
1299                 }
1300         }
1301
1302         return ERROR_OK;
1303
1304 }
1305
1306 /* what to do on daemon startup */
1307 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1308 {
1309         if (argc == 1)
1310         {
1311                 if (strcmp(args[0], "attach") == 0)
1312                 {
1313                         startup_mode = DAEMON_ATTACH;
1314                         return ERROR_OK;
1315                 }
1316                 else if (strcmp(args[0], "reset") == 0)
1317                 {
1318                         startup_mode = DAEMON_RESET;
1319                         return ERROR_OK;
1320                 }
1321         }
1322
1323         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1324         return ERROR_OK;
1325
1326 }
1327
1328 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1329 {
1330         target_t *target = get_current_target(cmd_ctx);
1331         int retval;
1332
1333         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1334
1335         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1336         {
1337                 switch (retval)
1338                 {
1339                         case ERROR_TARGET_TIMEOUT:
1340                                 command_print(cmd_ctx, "target timed out... shutting down");
1341                                 exit(-1);
1342                         default:
1343                                 command_print(cmd_ctx, "unknown error... shutting down");
1344                                 exit(-1);
1345                 }
1346         }
1347
1348         return ERROR_OK;
1349 }
1350
1351 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1352 {
1353         target_t *target = get_current_target(cmd_ctx);
1354         enum target_reset_mode reset_mode = RESET_RUN;
1355
1356         DEBUG("-");
1357
1358         if (argc >= 1)
1359         {
1360                 if (strcmp("run", args[0]) == 0)
1361                         reset_mode = RESET_RUN;
1362                 else if (strcmp("halt", args[0]) == 0)
1363                         reset_mode = RESET_HALT;
1364                 else if (strcmp("init", args[0]) == 0)
1365                         reset_mode = RESET_INIT;
1366                 else if (strcmp("run_and_halt", args[0]) == 0)
1367                 {
1368                         reset_mode = RESET_RUN_AND_HALT;
1369                         if (argc >= 2)
1370                         {
1371                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1372                         }
1373                 }
1374                 else if (strcmp("run_and_init", args[0]) == 0)
1375                 {
1376                         reset_mode = RESET_RUN_AND_INIT;
1377                         if (argc >= 2)
1378                         {
1379                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1380                         }
1381                 }
1382                 else
1383                 {
1384                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1385                         return ERROR_OK;
1386                 }
1387                 target->reset_mode = reset_mode;
1388         }
1389
1390         target_process_reset(cmd_ctx);
1391
1392         return ERROR_OK;
1393 }
1394
1395 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1396 {
1397         int retval;
1398         target_t *target = get_current_target(cmd_ctx);
1399
1400         DEBUG("-");
1401
1402         if (argc == 0)
1403                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1404         else if (argc == 1)
1405                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1406         else
1407         {
1408                 command_print(cmd_ctx, "usage: resume [address]");
1409                 return ERROR_OK;
1410         }
1411
1412         if (retval != ERROR_OK)
1413         {
1414                 switch (retval)
1415                 {
1416                         case ERROR_TARGET_NOT_HALTED:
1417                                 command_print(cmd_ctx, "target not halted");
1418                                 break;
1419                         default:
1420                                 command_print(cmd_ctx, "unknown error... shutting down");
1421                                 exit(-1);
1422                 }
1423         }
1424
1425         return ERROR_OK;
1426 }
1427
1428 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1429 {
1430         target_t *target = get_current_target(cmd_ctx);
1431
1432         DEBUG("-");
1433
1434         if (argc == 0)
1435                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1436
1437         if (argc == 1)
1438                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1439
1440         return ERROR_OK;
1441 }
1442
1443 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1444 {
1445         int count = 1;
1446         int size = 4;
1447         u32 address = 0;
1448         int i;
1449
1450         char output[128];
1451         int output_len;
1452
1453         int retval;
1454
1455         u8 *buffer;
1456         target_t *target = get_current_target(cmd_ctx);
1457
1458         if (argc < 1)
1459                 return ERROR_OK;
1460
1461         if (argc == 2)
1462                 count = strtoul(args[1], NULL, 0);
1463
1464         address = strtoul(args[0], NULL, 0);
1465
1466
1467         switch (cmd[2])
1468         {
1469                 case 'w':
1470                         size = 4;
1471                         break;
1472                 case 'h':
1473                         size = 2;
1474                         break;
1475                 case 'b':
1476                         size = 1;
1477                         break;
1478                 default:
1479                         return ERROR_OK;
1480         }
1481
1482         buffer = calloc(count, size);
1483         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1484         {
1485                 switch (retval)
1486                 {
1487                         case ERROR_TARGET_UNALIGNED_ACCESS:
1488                                 command_print(cmd_ctx, "error: address not aligned");
1489                                 break;
1490                         case ERROR_TARGET_NOT_HALTED:
1491                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1492                                 break;
1493                         case ERROR_TARGET_DATA_ABORT:
1494                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1495                                 break;
1496                         default:
1497                                 command_print(cmd_ctx, "error: unknown error");
1498                                 break;
1499                 }
1500                 return ERROR_OK;
1501         }
1502
1503         output_len = 0;
1504
1505         for (i = 0; i < count; i++)
1506         {
1507                 if (i%8 == 0)
1508                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1509
1510                 switch (size)
1511                 {
1512                         case 4:
1513                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1514                                 break;
1515                         case 2:
1516                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1517                                 break;
1518                         case 1:
1519                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1520                                 break;
1521                 }
1522
1523                 if ((i%8 == 7) || (i == count - 1))
1524                 {
1525                         command_print(cmd_ctx, output);
1526                         output_len = 0;
1527                 }
1528         }
1529
1530         free(buffer);
1531
1532         return ERROR_OK;
1533 }
1534
1535 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1536 {
1537         u32 address = 0;
1538         u32 value = 0;
1539         int retval;
1540         target_t *target = get_current_target(cmd_ctx);
1541         u8 value_buf[4];
1542
1543         if (argc < 2)
1544                 return ERROR_OK;
1545
1546         address = strtoul(args[0], NULL, 0);
1547         value = strtoul(args[1], NULL, 0);
1548
1549         switch (cmd[2])
1550         {
1551                 case 'w':
1552                         target_buffer_set_u32(target, value_buf, value);
1553                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1554                         break;
1555                 case 'h':
1556                         target_buffer_set_u16(target, value_buf, value);
1557                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1558                         break;
1559                 case 'b':
1560                         value_buf[0] = value;
1561                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1562                         break;
1563                 default:
1564                         return ERROR_OK;
1565         }
1566
1567         switch (retval)
1568         {
1569                 case ERROR_TARGET_UNALIGNED_ACCESS:
1570                         command_print(cmd_ctx, "error: address not aligned");
1571                         break;
1572                 case ERROR_TARGET_DATA_ABORT:
1573                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1574                         break;
1575                 case ERROR_TARGET_NOT_HALTED:
1576                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1577                         break;
1578                 case ERROR_OK:
1579                         break;
1580                 default:
1581                         command_print(cmd_ctx, "error: unknown error");
1582                         break;
1583         }
1584
1585         return ERROR_OK;
1586
1587 }
1588
1589 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1590 {
1591         u32 address;
1592         u8 *buffer;
1593         u32 buf_cnt;
1594         u32 binary_size;
1595
1596         fileio_t file;
1597         enum fileio_pri_type pri_type = FILEIO_IMAGE;
1598         fileio_image_t image_info;
1599         enum fileio_sec_type sec_type;
1600
1601         duration_t duration;
1602         char *duration_text;
1603
1604         target_t *target = get_current_target(cmd_ctx);
1605
1606         if (argc < 2)
1607         {
1608                 command_print(cmd_ctx, "usage: load_image <filename> <address> [type]");
1609                 return ERROR_OK;
1610         }
1611
1612         memset(&file, 0, sizeof(fileio_t));
1613         fileio_identify_image_type(&sec_type, (argc == 3) ? args[2] : NULL);
1614
1615         image_info.base_address = strtoul(args[1], NULL, 0);
1616         image_info.has_start_address = 0;
1617
1618         buffer = malloc(128 * 1024);
1619
1620         duration_start_measure(&duration);
1621
1622         if (fileio_open(&file, args[0], FILEIO_READ,
1623                 pri_type, &image_info, sec_type) != ERROR_OK)
1624         {
1625                 command_print(cmd_ctx, "load_image error: %s", file.error_str);
1626                 return ERROR_OK;
1627         }
1628
1629         binary_size = file.size;
1630         address = image_info.base_address;
1631         while ((binary_size > 0) &&
1632                 (fileio_read(&file, 128 * 1024, buffer, &buf_cnt) == ERROR_OK))
1633         {
1634                 target_write_buffer(target, address, buf_cnt, buffer);
1635                 address += buf_cnt;
1636                 binary_size -= buf_cnt;
1637         }
1638
1639         free(buffer);
1640
1641         duration_stop_measure(&duration, &duration_text);
1642         command_print(cmd_ctx, "downloaded %lli byte in %s", file.size, duration_text);
1643         free(duration_text);
1644
1645         fileio_close(&file);
1646
1647         return ERROR_OK;
1648
1649 }
1650
1651 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1652 {
1653         fileio_t file;
1654         fileio_image_t image_info;
1655
1656         u32 address;
1657         u32 size;
1658         u8 buffer[560];
1659
1660         duration_t duration;
1661         char *duration_text;
1662
1663         target_t *target = get_current_target(cmd_ctx);
1664
1665         if (argc != 3)
1666         {
1667                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1668                 return ERROR_OK;
1669         }
1670
1671         address = strtoul(args[1], NULL, 0);
1672         size = strtoul(args[2], NULL, 0);
1673
1674         if ((address & 3) || (size & 3))
1675         {
1676                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1677                 return ERROR_OK;
1678         }
1679
1680         image_info.base_address = address;
1681         image_info.has_start_address = 0;
1682
1683         if (fileio_open(&file, args[0], FILEIO_WRITE,
1684                 FILEIO_IMAGE, &image_info, FILEIO_PLAIN) != ERROR_OK)
1685         {
1686                 command_print(cmd_ctx, "dump_image error: %s", file.error_str);
1687                 return ERROR_OK;
1688         }
1689
1690         duration_start_measure(&duration);
1691
1692         while (size > 0)
1693         {
1694                 u32 size_written;
1695                 u32 this_run_size = (size > 560) ? 560 : size;
1696
1697                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1698                 fileio_write(&file, this_run_size, buffer, &size_written);
1699
1700                 size -= this_run_size;
1701                 address += this_run_size;
1702         }
1703
1704         fileio_close(&file);
1705
1706         duration_stop_measure(&duration, &duration_text);
1707         command_print(cmd_ctx, "dumped %lli byte in %s", file.size, duration_text);
1708         free(duration_text);
1709
1710         return ERROR_OK;
1711
1712 }
1713
1714 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1715 {
1716         int retval;
1717         target_t *target = get_current_target(cmd_ctx);
1718
1719         if (argc == 0)
1720         {
1721                 breakpoint_t *breakpoint = target->breakpoints;
1722
1723                 while (breakpoint)
1724                 {
1725                         if (breakpoint->type == BKPT_SOFT)
1726                         {
1727                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
1728                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1729                                 free(buf);
1730                         }
1731                         else
1732                         {
1733                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1734                         }
1735                         breakpoint = breakpoint->next;
1736                 }
1737         }
1738         else if (argc >= 2)
1739         {
1740                 int hw = BKPT_SOFT;
1741                 u32 length = 0;
1742
1743                 length = strtoul(args[1], NULL, 0);
1744
1745                 if (argc >= 3)
1746                         if (strcmp(args[2], "hw") == 0)
1747                                 hw = BKPT_HARD;
1748
1749                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1750                 {
1751                         switch (retval)
1752                         {
1753                                 case ERROR_TARGET_NOT_HALTED:
1754                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1755                                         break;
1756                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1757                                         command_print(cmd_ctx, "no more breakpoints available");
1758                                         break;
1759                                 default:
1760                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1761                                         break;
1762                         }
1763                 }
1764                 else
1765                 {
1766                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
1767                 }
1768         }
1769         else
1770         {
1771                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
1772         }
1773
1774         return ERROR_OK;
1775 }
1776
1777 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1778 {
1779         target_t *target = get_current_target(cmd_ctx);
1780
1781         if (argc > 0)
1782                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1783
1784         return ERROR_OK;
1785 }
1786
1787 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1788 {
1789         target_t *target = get_current_target(cmd_ctx);
1790
1791         if (argc == 0)
1792         {
1793                 watchpoint_t *watchpoint = target->watchpoints;
1794
1795                 while (watchpoint)
1796                 {
1797                         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);
1798                         watchpoint = watchpoint->next;
1799                 }
1800         }
1801         else if (argc >= 2)
1802         {
1803                 enum watchpoint_rw type = WPT_ACCESS;
1804                 u32 data_value = 0x0;
1805                 u32 data_mask = 0xffffffff;
1806
1807                 if (argc >= 3)
1808                 {
1809                         switch(args[2][0])
1810                         {
1811                                 case 'r':
1812                                         type = WPT_READ;
1813                                         break;
1814                                 case 'w':
1815                                         type = WPT_WRITE;
1816                                         break;
1817                                 case 'a':
1818                                         type = WPT_ACCESS;
1819                                         break;
1820                                 default:
1821                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1822                                         return ERROR_OK;
1823                         }
1824                 }
1825                 if (argc >= 4)
1826                 {
1827                         data_value = strtoul(args[3], NULL, 0);
1828                 }
1829                 if (argc >= 5)
1830                 {
1831                         data_mask = strtoul(args[4], NULL, 0);
1832                 }
1833                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1834         }
1835         else
1836         {
1837                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1838         }
1839
1840         return ERROR_OK;
1841 }
1842
1843 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1844 {
1845         target_t *target = get_current_target(cmd_ctx);
1846
1847         if (argc > 0)
1848                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1849
1850         return ERROR_OK;
1851 }
1852