git.sur5r.net Git - openocd/blob - src/target/target.c

   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 extern target_type_t xscale_target;
  83
  84 target_type_t *target_types[] =
  85 {
  86         &arm7tdmi_target,
  87         &arm9tdmi_target,
  88         &arm920t_target,
  89         &arm720t_target,
  90         &arm966e_target,
  91         &arm926ejs_target,
  92         &xscale_target,
  93         NULL,
  94 };
  95
  96 target_t *targets = NULL;
  97 target_event_callback_t *target_event_callbacks = NULL;
  98 target_timer_callback_t *target_timer_callbacks = NULL;
  99
 100 char *target_state_strings[] =
 101 {
 102         "unknown",
 103         "running",
 104         "halted",
 105         "reset",
 106         "debug_running",
 107 };
 108
 109 char *target_debug_reason_strings[] =
 110 {
 111         "debug request", "breakpoint", "watchpoint",
 112         "watchpoint and breakpoint", "single step",
 113         "target not halted"
 114 };
 115
 116 char *target_endianess_strings[] =
 117 {
 118         "big endian",
 119         "little endian",
 120 };
 121
 122 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 123
 124 static int target_continous_poll = 1;
 125
 126 /* read a u32 from a buffer in target memory endianness */
 127 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 128 {
 129         if (target->endianness == TARGET_LITTLE_ENDIAN)
 130                 return le_to_h_u32(buffer);
 131         else
 132                 return be_to_h_u32(buffer);
 133 }
 134
 135 /* read a u16 from a buffer in target memory endianness */
 136 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 137 {
 138         if (target->endianness == TARGET_LITTLE_ENDIAN)
 139                 return le_to_h_u16(buffer);
 140         else
 141                 return be_to_h_u16(buffer);
 142 }
 143
 144 /* write a u32 to a buffer in target memory endianness */
 145 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 146 {
 147         if (target->endianness == TARGET_LITTLE_ENDIAN)
 148                 h_u32_to_le(buffer, value);
 149         else
 150                 h_u32_to_be(buffer, value);
 151 }
 152
 153 /* write a u16 to a buffer in target memory endianness */
 154 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 155 {
 156         if (target->endianness == TARGET_LITTLE_ENDIAN)
 157                 h_u16_to_le(buffer, value);
 158         else
 159                 h_u16_to_be(buffer, value);
 160 }
 161
 162 /* returns a pointer to the n-th configured target */
 163 target_t* get_target_by_num(int num)
 164 {
 165         target_t *target = targets;
 166         int i = 0;
 167
 168         while (target)
 169         {
 170                 if (num == i)
 171                         return target;
 172                 target = target->next;
 173                 i++;
 174         }
 175
 176         return NULL;
 177 }
 178
 179 int get_num_by_target(target_t *query_target)
 180 {
 181         target_t *target = targets;
 182         int i = 0;
 183
 184         while (target)
 185         {
 186                 if (target == query_target)
 187                         return i;
 188                 target = target->next;
 189                 i++;
 190         }
 191
 192         return -1;
 193 }
 194
 195 target_t* get_current_target(command_context_t *cmd_ctx)
 196 {
 197         target_t *target = get_target_by_num(cmd_ctx->current_target);
 198
 199         if (target == NULL)
 200         {
 201                 ERROR("BUG: current_target out of bounds");
 202                 exit(-1);
 203         }
 204
 205         return target;
 206 }
 207
 208 /* Process target initialization, when target entered debug out of reset
 209  * the handler is unregistered at the end of this function, so it's only called once
 210  */
 211 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 212 {
 213         FILE *script;
 214         struct command_context_s *cmd_ctx = priv;
 215
 216         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 217         {
 218                 target_unregister_event_callback(target_init_handler, priv);
 219
 220                 script = fopen(target->reset_script, "r");
 221                 if (!script)
 222                 {
 223                         ERROR("couldn't open script file %s", target->reset_script);
 224                                 return ERROR_OK;
 225                 }
 226
 227                 INFO("executing reset script '%s'", target->reset_script);
 228                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 229                 fclose(script);
 230
 231                 jtag_execute_queue();
 232         }
 233
 234         return ERROR_OK;
 235 }
 236
 237 int target_run_and_halt_handler(void *priv)
 238 {
 239         target_t *target = priv;
 240
 241         target->type->halt(target);
 242
 243         return ERROR_OK;
 244 }
 245
 246 int target_process_reset(struct command_context_s *cmd_ctx)
 247 {
 248         int retval = ERROR_OK;
 249         target_t *target;
 250
 251         target = targets;
 252         while (target)
 253         {
 254                 target->type->assert_reset(target);
 255                 target = target->next;
 256         }
 257         jtag_execute_queue();
 258
 259         /* request target halt if necessary, and schedule further action */
 260         target = targets;
 261         while (target)
 262         {
 263                 switch (target->reset_mode)
 264                 {
 265                         case RESET_RUN:
 266                                 /* nothing to do if target just wants to be run */
 267                                 break;
 268                         case RESET_RUN_AND_HALT:
 269                                 /* schedule halt */
 270                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 271                                 break;
 272                         case RESET_RUN_AND_INIT:
 273                                 /* schedule halt */
 274                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 275                                 target_register_event_callback(target_init_handler, cmd_ctx);
 276                                 break;
 277                         case RESET_HALT:
 278                                 target->type->halt(target);
 279                                 break;
 280                         case RESET_INIT:
 281                                 target->type->halt(target);
 282                                 target_register_event_callback(target_init_handler, cmd_ctx);
 283                                 break;
 284                         default:
 285                                 ERROR("BUG: unknown target->reset_mode");
 286                 }
 287                 target = target->next;
 288         }
 289
 290         target = targets;
 291         while (target)
 292         {
 293                 target->type->deassert_reset(target);
 294                 target = target->next;
 295         }
 296         jtag_execute_queue();
 297
 298         return retval;
 299 }
 300
 301 int target_init(struct command_context_s *cmd_ctx)
 302 {
 303         target_t *target = targets;
 304
 305         while (target)
 306         {
 307                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 308                 {
 309                         ERROR("target '%s' init failed", target->type->name);
 310                         exit(-1);
 311                 }
 312                 target = target->next;
 313         }
 314
 315         if (targets)
 316         {
 317                 target_register_user_commands(cmd_ctx);
 318                 target_register_timer_callback(handle_target, 100, 1, NULL);
 319         }
 320
 321         if (startup_mode == DAEMON_RESET)
 322                 target_process_reset(cmd_ctx);
 323
 324         return ERROR_OK;
 325 }
 326
 327 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 328 {
 329         target_event_callback_t **callbacks_p = &target_event_callbacks;
 330
 331         if (callback == NULL)
 332         {
 333                 return ERROR_INVALID_ARGUMENTS;
 334         }
 335
 336         if (*callbacks_p)
 337         {
 338                 while ((*callbacks_p)->next)
 339                         callbacks_p = &((*callbacks_p)->next);
 340                 callbacks_p = &((*callbacks_p)->next);
 341         }
 342
 343         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 344         (*callbacks_p)->callback = callback;
 345         (*callbacks_p)->priv = priv;
 346         (*callbacks_p)->next = NULL;
 347
 348         return ERROR_OK;
 349 }
 350
 351 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 352 {
 353         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 354         struct timeval now;
 355
 356         if (callback == NULL)
 357         {
 358                 return ERROR_INVALID_ARGUMENTS;
 359         }
 360
 361         if (*callbacks_p)
 362         {
 363                 while ((*callbacks_p)->next)
 364                         callbacks_p = &((*callbacks_p)->next);
 365                 callbacks_p = &((*callbacks_p)->next);
 366         }
 367
 368         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 369         (*callbacks_p)->callback = callback;
 370         (*callbacks_p)->periodic = periodic;
 371         (*callbacks_p)->time_ms = time_ms;
 372
 373         gettimeofday(&now, NULL);
 374         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 375         time_ms -= (time_ms % 1000);
 376         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 377         if ((*callbacks_p)->when.tv_usec > 1000000)
 378         {
 379                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 380                 (*callbacks_p)->when.tv_sec += 1;
 381         }
 382
 383         (*callbacks_p)->priv = priv;
 384         (*callbacks_p)->next = NULL;
 385
 386         return ERROR_OK;
 387 }
 388
 389 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 390 {
 391         target_event_callback_t **p = &target_event_callbacks;
 392         target_event_callback_t *c = target_event_callbacks;
 393
 394         if (callback == NULL)
 395         {
 396                 return ERROR_INVALID_ARGUMENTS;
 397         }
 398
 399         while (c)
 400         {
 401                 target_event_callback_t *next = c->next;
 402                 if ((c->callback == callback) && (c->priv == priv))
 403                 {
 404                         *p = next;
 405                         free(c);
 406                         return ERROR_OK;
 407                 }
 408                 else
 409                         p = &(c->next);
 410                 c = next;
 411         }
 412
 413         return ERROR_OK;
 414 }
 415
 416 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 417 {
 418         target_timer_callback_t **p = &target_timer_callbacks;
 419         target_timer_callback_t *c = target_timer_callbacks;
 420
 421         if (callback == NULL)
 422         {
 423                 return ERROR_INVALID_ARGUMENTS;
 424         }
 425
 426         while (c)
 427         {
 428                 target_timer_callback_t *next = c->next;
 429                 if ((c->callback == callback) && (c->priv == priv))
 430                 {
 431                         *p = next;
 432                         free(c);
 433                         return ERROR_OK;
 434                 }
 435                 else
 436                         p = &(c->next);
 437                 c = next;
 438         }
 439
 440         return ERROR_OK;
 441 }
 442
 443 int target_call_event_callbacks(target_t *target, enum target_event event)
 444 {
 445         target_event_callback_t *callback = target_event_callbacks;
 446         target_event_callback_t *next_callback;
 447
 448         DEBUG("target event %i", event);
 449
 450         while (callback)
 451         {
 452                 next_callback = callback->next;
 453                 callback->callback(target, event, callback->priv);
 454                 callback = next_callback;
 455         }
 456
 457         return ERROR_OK;
 458 }
 459
 460 int target_call_timer_callbacks()
 461 {
 462         target_timer_callback_t *callback = target_timer_callbacks;
 463         target_timer_callback_t *next_callback;
 464         struct timeval now;
 465
 466         gettimeofday(&now, NULL);
 467
 468         while (callback)
 469         {
 470                 next_callback = callback->next;
 471
 472                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 473                         || (now.tv_sec > callback->when.tv_sec))
 474                 {
 475                         callback->callback(callback->priv);
 476                         if (callback->periodic)
 477                         {
 478                                 int time_ms = callback->time_ms;
 479                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 480                                 time_ms -= (time_ms % 1000);
 481                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 482                                 if (callback->when.tv_usec > 1000000)
 483                                 {
 484                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 485                                         callback->when.tv_sec += 1;
 486                                 }
 487                         }
 488                         else
 489                                 target_unregister_timer_callback(callback->callback, callback->priv);
 490                 }
 491
 492                 callback = next_callback;
 493         }
 494
 495         return ERROR_OK;
 496 }
 497
 498 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 499 {
 500         working_area_t *c = target->working_areas;
 501         working_area_t *new_wa = NULL;
 502
 503         /* only allocate multiples of 4 byte */
 504         if (size % 4)
 505         {
 506                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 507                 size = CEIL(size, 4);
 508         }
 509
 510         /* see if there's already a matching working area */
 511         while (c)
 512         {
 513                 if ((c->free) && (c->size == size))
 514                 {
 515                         new_wa = c;
 516                         break;
 517                 }
 518                 c = c->next;
 519         }
 520
 521         /* if not, allocate a new one */
 522         if (!new_wa)
 523         {
 524                 working_area_t **p = &target->working_areas;
 525                 u32 first_free = target->working_area;
 526                 u32 free_size = target->working_area_size;
 527
 528                 DEBUG("allocating new working area");
 529
 530                 c = target->working_areas;
 531                 while (c)
 532                 {
 533                         first_free += c->size;
 534                         free_size -= c->size;
 535                         p = &c->next;
 536                         c = c->next;
 537                 }
 538
 539                 if (free_size < size)
 540                 {
 541                         WARNING("not enough working area available");
 542                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 543                 }
 544
 545                 new_wa = malloc(sizeof(working_area_t));
 546                 new_wa->next = NULL;
 547                 new_wa->size = size;
 548                 new_wa->address = first_free;
 549
 550                 if (target->backup_working_area)
 551                 {
 552                         new_wa->backup = malloc(new_wa->size);
 553                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 554                 }
 555                 else
 556                 {
 557                         new_wa->backup = NULL;
 558                 }
 559
 560                 /* put new entry in list */
 561                 *p = new_wa;
 562         }
 563
 564         /* mark as used, and return the new (reused) area */
 565         new_wa->free = 0;
 566         *area = new_wa;
 567
 568         /* user pointer */
 569         new_wa->user = area;
 570
 571         return ERROR_OK;
 572 }
 573
 574 int target_free_working_area(struct target_s *target, working_area_t *area)
 575 {
 576         if (area->free)
 577                 return ERROR_OK;
 578
 579         if (target->backup_working_area)
 580                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 581
 582         area->free = 1;
 583
 584         /* mark user pointer invalid */
 585         *area->user = NULL;
 586         area->user = NULL;
 587
 588         return ERROR_OK;
 589 }
 590
 591 int target_free_all_working_areas(struct target_s *target)
 592 {
 593         working_area_t *c = target->working_areas;
 594
 595         while (c)
 596         {
 597                 working_area_t *next = c->next;
 598                 target_free_working_area(target, c);
 599
 600                 if (c->backup)
 601                         free(c->backup);
 602
 603                 free(c);
 604
 605                 c = next;
 606         }
 607
 608         target->working_areas = NULL;
 609
 610         return ERROR_OK;
 611 }
 612
 613 int target_register_commands(struct command_context_s *cmd_ctx)
 614 {
 615         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 616         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 617         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 618         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 619         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 620         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 621
 622         return ERROR_OK;
 623 }
 624
 625 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 626 {
 627         int retval;
 628
 629         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 630
 631         /* handle writes of less than 4 byte */
 632         if (size < 4)
 633         {
 634                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 635                         return retval;
 636         }
 637
 638         /* handle unaligned head bytes */
 639         if (address % 4)
 640         {
 641                 int unaligned = 4 - (address % 4);
 642
 643                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 644                         return retval;
 645
 646                 buffer += unaligned;
 647                 address += unaligned;
 648                 size -= unaligned;
 649         }
 650
 651         /* handle aligned words */
 652         if (size >= 4)
 653         {
 654                 int aligned = size - (size % 4);
 655
 656                 /* use bulk writes above a certain limit. This may have to be changed */
 657                 if (aligned > 128)
 658                 {
 659                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 660                                 return retval;
 661                 }
 662                 else
 663                 {
 664                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 665                                 return retval;
 666                 }
 667
 668                 buffer += aligned;
 669                 address += aligned;
 670                 size -= aligned;
 671         }
 672
 673         /* handle tail writes of less than 4 bytes */
 674         if (size > 0)
 675         {
 676                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 677                         return retval;
 678         }
 679
 680         return ERROR_OK;
 681 }
 682
 683 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 684 {
 685         int retval;
 686
 687         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 688
 689         /* handle reads of less than 4 byte */
 690         if (size < 4)
 691         {
 692                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 693                         return retval;
 694         }
 695
 696         /* handle unaligned head bytes */
 697         if (address % 4)
 698         {
 699                 int unaligned = 4 - (address % 4);
 700
 701                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 702                         return retval;
 703
 704                 buffer += unaligned;
 705                 address += unaligned;
 706                 size -= unaligned;
 707         }
 708
 709         /* handle aligned words */
 710         if (size >= 4)
 711         {
 712                 int aligned = size - (size % 4);
 713
 714                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 715                         return retval;
 716
 717                 buffer += aligned;
 718                 address += aligned;
 719                 size -= aligned;
 720         }
 721
 722         /* handle tail writes of less than 4 bytes */
 723         if (size > 0)
 724         {
 725                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 726                         return retval;
 727         }
 728
 729         return ERROR_OK;
 730 }
 731
 732 int target_read_u32(struct target_s *target, u32 address, u32 *value)
 733 {
 734         u8 value_buf[4];
 735
 736         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
 737
 738         if (retval == ERROR_OK)
 739         {
 740                 *value = target_buffer_get_u32(target, value_buf);
 741                 DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 742         }
 743         else
 744         {
 745                 *value = 0x0;
 746                 DEBUG("address: 0x%8.8x failed", address);
 747         }
 748
 749         return retval;
 750 }
 751
 752 int target_read_u16(struct target_s *target, u32 address, u16 *value)
 753 {
 754         u8 value_buf[2];
 755
 756         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
 757
 758         if (retval == ERROR_OK)
 759         {
 760                 *value = target_buffer_get_u16(target, value_buf);
 761                 DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
 762         }
 763         else
 764         {
 765                 *value = 0x0;
 766                 DEBUG("address: 0x%8.8x failed", address);
 767         }
 768
 769         return retval;
 770 }
 771
 772 int target_read_u8(struct target_s *target, u32 address, u8 *value)
 773 {
 774         int retval = target->type->read_memory(target, address, 1, 1, value);
 775
 776         if (retval == ERROR_OK)
 777         {
 778                 DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
 779         }
 780         else
 781         {
 782                 *value = 0x0;
 783                 DEBUG("address: 0x%8.8x failed", address);
 784         }
 785
 786         return retval;
 787 }
 788
 789 int target_write_u32(struct target_s *target, u32 address, u32 value)
 790 {
 791         int retval;
 792         u8 value_buf[4];
 793
 794         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 795
 796         target_buffer_set_u32(target, value_buf, value);
 797         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
 798         {
 799                 DEBUG("failed: %i", retval);
 800         }
 801
 802         return retval;
 803 }
 804
 805 int target_write_u16(struct target_s *target, u32 address, u16 value)
 806 {
 807         int retval;
 808         u8 value_buf[2];
 809
 810         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 811
 812         target_buffer_set_u16(target, value_buf, value);
 813         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
 814         {
 815                 DEBUG("failed: %i", retval);
 816         }
 817
 818         return retval;
 819 }
 820
 821 int target_write_u8(struct target_s *target, u32 address, u8 value)
 822 {
 823         int retval;
 824
 825         DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
 826
 827         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
 828         {
 829                 DEBUG("failed: %i", retval);
 830         }
 831
 832         return retval;
 833 }
 834
 835 int target_register_user_commands(struct command_context_s *cmd_ctx)
 836 {
 837         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 838         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 839         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
 840         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 841         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 842         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 843         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 844         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 845
 846         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 847         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 848         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 849
 850         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 851         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 852         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 853
 854         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 855         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 856         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 857         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 858
 859         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex']");
 860         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
 861         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
 862         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
 863
 864         return ERROR_OK;
 865 }
 866
 867 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 868 {
 869         target_t *target = targets;
 870         int count = 0;
 871
 872         if (argc == 1)
 873         {
 874                 int num = strtoul(args[0], NULL, 0);
 875
 876                 while (target)
 877                 {
 878                         count++;
 879                         target = target->next;
 880                 }
 881
 882                 if (num < count)
 883                         cmd_ctx->current_target = num;
 884                 else
 885                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 886
 887                 return ERROR_OK;
 888         }
 889
 890         while (target)
 891         {
 892                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 893                 target = target->next;
 894         }
 895
 896         return ERROR_OK;
 897 }
 898
 899 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 900 {
 901         int i;
 902         int found = 0;
 903
 904         if (argc < 3)
 905         {
 906                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 907                 exit(-1);
 908         }
 909
 910         /* search for the specified target */
 911         if (args[0] && (args[0][0] != 0))
 912         {
 913                 for (i = 0; target_types[i]; i++)
 914                 {
 915                         if (strcmp(args[0], target_types[i]->name) == 0)
 916                         {
 917                                 target_t **last_target_p = &targets;
 918
 919                                 /* register target specific commands */
 920                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 921                                 {
 922                                         ERROR("couldn't register '%s' commands", args[0]);
 923                                         exit(-1);
 924                                 }
 925
 926                                 if (*last_target_p)
 927                                 {
 928                                         while ((*last_target_p)->next)
 929                                                 last_target_p = &((*last_target_p)->next);
 930                                         last_target_p = &((*last_target_p)->next);
 931                                 }
 932
 933                                 *last_target_p = malloc(sizeof(target_t));
 934
 935                                 (*last_target_p)->type = target_types[i];
 936
 937                                 if (strcmp(args[1], "big") == 0)
 938                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 939                                 else if (strcmp(args[1], "little") == 0)
 940                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 941                                 else
 942                                 {
 943                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 944                                         exit(-1);
 945                                 }
 946
 947                                 /* what to do on a target reset */
 948                                 if (strcmp(args[2], "reset_halt") == 0)
 949                                         (*last_target_p)->reset_mode = RESET_HALT;
 950                                 else if (strcmp(args[2], "reset_run") == 0)
 951                                         (*last_target_p)->reset_mode = RESET_RUN;
 952                                 else if (strcmp(args[2], "reset_init") == 0)
 953                                         (*last_target_p)->reset_mode = RESET_INIT;
 954                                 else if (strcmp(args[2], "run_and_halt") == 0)
 955                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 956                                 else if (strcmp(args[2], "run_and_init") == 0)
 957                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 958                                 else
 959                                 {
 960                                         ERROR("unknown target startup mode %s", args[2]);
 961                                         exit(-1);
 962                                 }
 963                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 964
 965                                 (*last_target_p)->reset_script = NULL;
 966                                 (*last_target_p)->post_halt_script = NULL;
 967                                 (*last_target_p)->pre_resume_script = NULL;
 968
 969                                 (*last_target_p)->working_area = 0x0;
 970                                 (*last_target_p)->working_area_size = 0x0;
 971                                 (*last_target_p)->working_areas = NULL;
 972                                 (*last_target_p)->backup_working_area = 0;
 973
 974                                 (*last_target_p)->state = TARGET_UNKNOWN;
 975                                 (*last_target_p)->reg_cache = NULL;
 976                                 (*last_target_p)->breakpoints = NULL;
 977                                 (*last_target_p)->watchpoints = NULL;
 978                                 (*last_target_p)->next = NULL;
 979                                 (*last_target_p)->arch_info = NULL;
 980
 981                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 982
 983                                 found = 1;
 984                                 break;
 985                         }
 986                 }
 987         }
 988
 989         /* no matching target found */
 990         if (!found)
 991         {
 992                 ERROR("target '%s' not found", args[0]);
 993                 exit(-1);
 994         }
 995
 996         return ERROR_OK;
 997 }
 998
 999 /* usage: target_script <target#> <event> <script_file> */
1000 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1001 {
1002         target_t *target = NULL;
1003
1004         if (argc < 3)
1005         {
1006                 ERROR("incomplete target_script command");
1007                 exit(-1);
1008         }
1009
1010         target = get_target_by_num(strtoul(args[0], NULL, 0));
1011
1012         if (!target)
1013         {
1014                 ERROR("target number '%s' not defined", args[0]);
1015                 exit(-1);
1016         }
1017
1018         if (strcmp(args[1], "reset") == 0)
1019         {
1020                 if (target->reset_script)
1021                         free(target->reset_script);
1022                 target->reset_script = strdup(args[2]);
1023         }
1024         else if (strcmp(args[1], "post_halt") == 0)
1025         {
1026                 if (target->post_halt_script)
1027                         free(target->post_halt_script);
1028                 target->post_halt_script = strdup(args[2]);
1029         }
1030         else if (strcmp(args[1], "pre_resume") == 0)
1031         {
1032                 if (target->pre_resume_script)
1033                         free(target->pre_resume_script);
1034                 target->pre_resume_script = strdup(args[2]);
1035         }
1036         else
1037         {
1038                 ERROR("unknown event type: '%s", args[1]);
1039                 exit(-1);
1040         }
1041
1042         return ERROR_OK;
1043 }
1044
1045 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1046 {
1047         target_t *target = NULL;
1048
1049         if (argc < 2)
1050         {
1051                 ERROR("incomplete run_and_halt_time command");
1052                 exit(-1);
1053         }
1054
1055         target = get_target_by_num(strtoul(args[0], NULL, 0));
1056
1057         if (!target)
1058         {
1059                 ERROR("target number '%s' not defined", args[0]);
1060                 exit(-1);
1061         }
1062
1063         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1064
1065         return ERROR_OK;
1066 }
1067
1068 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1069 {
1070         target_t *target = NULL;
1071
1072         if (argc < 4)
1073         {
1074                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1075                 exit(-1);
1076         }
1077
1078         target = get_target_by_num(strtoul(args[0], NULL, 0));
1079
1080         if (!target)
1081         {
1082                 ERROR("target number '%s' not defined", args[0]);
1083                 exit(-1);
1084         }
1085
1086         target->working_area = strtoul(args[1], NULL, 0);
1087         target->working_area_size = strtoul(args[2], NULL, 0);
1088
1089         if (strcmp(args[3], "backup") == 0)
1090         {
1091                 target->backup_working_area = 1;
1092         }
1093         else if (strcmp(args[3], "nobackup") == 0)
1094         {
1095                 target->backup_working_area = 0;
1096         }
1097         else
1098         {
1099                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1100                 exit(-1);
1101         }
1102
1103         return ERROR_OK;
1104 }
1105
1106
1107 /* process target state changes */
1108 int handle_target(void *priv)
1109 {
1110         int retval;
1111         target_t *target = targets;
1112
1113         while (target)
1114         {
1115                 /* only poll if target isn't already halted */
1116                 if (target->state != TARGET_HALTED)
1117                 {
1118                         if (target_continous_poll)
1119                                 if ((retval = target->type->poll(target)) < 0)
1120                                 {
1121                                         ERROR("couldn't poll target, exiting");
1122                                         exit(-1);
1123                                 }
1124                 }
1125
1126                 target = target->next;
1127         }
1128
1129         return ERROR_OK;
1130 }
1131
1132 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1133 {
1134         target_t *target;
1135         reg_t *reg = NULL;
1136         int count = 0;
1137         char *value;
1138
1139         DEBUG("-");
1140
1141         target = get_current_target(cmd_ctx);
1142
1143         /* list all available registers for the current target */
1144         if (argc == 0)
1145         {
1146                 reg_cache_t *cache = target->reg_cache;
1147
1148                 count = 0;
1149                 while(cache)
1150                 {
1151                         int i;
1152                         for (i = 0; i < cache->num_regs; i++)
1153                         {
1154                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1155                                 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);
1156                                 free(value);
1157                         }
1158                         cache = cache->next;
1159                 }
1160
1161                 return ERROR_OK;
1162         }
1163
1164         /* access a single register by its ordinal number */
1165         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1166         {
1167                 int num = strtoul(args[0], NULL, 0);
1168                 reg_cache_t *cache = target->reg_cache;
1169
1170                 count = 0;
1171                 while(cache)
1172                 {
1173                         int i;
1174                         for (i = 0; i < cache->num_regs; i++)
1175                         {
1176                                 if (count++ == num)
1177                                 {
1178                                         reg = &cache->reg_list[i];
1179                                         break;
1180                                 }
1181                         }
1182                         if (reg)
1183                                 break;
1184                         cache = cache->next;
1185                 }
1186
1187                 if (!reg)
1188                 {
1189                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1190                         return ERROR_OK;
1191                 }
1192         } else /* access a single register by its name */
1193         {
1194                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1195
1196                 if (!reg)
1197                 {
1198                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1199                         return ERROR_OK;
1200                 }
1201         }
1202
1203         /* display a register */
1204         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1205         {
1206                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1207                         reg->valid = 0;
1208
1209                 if (reg->valid == 0)
1210                 {
1211                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1212                         if (arch_type == NULL)
1213                         {
1214                                 ERROR("BUG: encountered unregistered arch type");
1215                                 return ERROR_OK;
1216                         }
1217                         arch_type->get(reg);
1218                 }
1219                 value = buf_to_str(reg->value, reg->size, 16);
1220                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1221                 free(value);
1222                 return ERROR_OK;
1223         }
1224
1225         /* set register value */
1226         if (argc == 2)
1227         {
1228                 u8 *buf = malloc(CEIL(reg->size, 8));
1229                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1230
1231                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1232                 if (arch_type == NULL)
1233                 {
1234                         ERROR("BUG: encountered unregistered arch type");
1235                         return ERROR_OK;
1236                 }
1237
1238                 arch_type->set(reg, buf);
1239
1240                 value = buf_to_str(reg->value, reg->size, 16);
1241                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1242                 free(value);
1243
1244                 free(buf);
1245
1246                 return ERROR_OK;
1247         }
1248
1249         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1250
1251         return ERROR_OK;
1252 }
1253
1254 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1255 {
1256         target_t *target = get_current_target(cmd_ctx);
1257         char buffer[512];
1258
1259         if (argc == 0)
1260         {
1261                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1262                 if (target->state == TARGET_HALTED)
1263                 {
1264                         target->type->arch_state(target, buffer, 512);
1265                         buffer[511] = 0;
1266                         command_print(cmd_ctx, "%s", buffer);
1267                 }
1268         }
1269         else
1270         {
1271                 if (strcmp(args[0], "on") == 0)
1272                 {
1273                         target_continous_poll = 1;
1274                 }
1275                 else if (strcmp(args[0], "off") == 0)
1276                 {
1277                         target_continous_poll = 0;
1278                 }
1279         }
1280
1281
1282         return ERROR_OK;
1283 }
1284
1285 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1286 {
1287         target_t *target = get_current_target(cmd_ctx);
1288         struct timeval timeout, now;
1289
1290         gettimeofday(&timeout, NULL);
1291         if (!argc)
1292                 timeval_add_time(&timeout, 5, 0);
1293         else {
1294                 char *end;
1295
1296                 timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
1297                 if (*end) {
1298                         command_print(cmd_ctx, "usage: wait_halt [seconds]");
1299                         return ERROR_OK;
1300                 }
1301         }
1302
1303         command_print(cmd_ctx, "waiting for target halted...");
1304
1305         while(target->type->poll(target))
1306         {
1307                 if (target->state == TARGET_HALTED)
1308                 {
1309                         command_print(cmd_ctx, "target halted");
1310                         break;
1311                 }
1312                 target_call_timer_callbacks();
1313
1314                 gettimeofday(&now, NULL);
1315                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1316                 {
1317                         command_print(cmd_ctx, "timed out while waiting for target halt");
1318                         ERROR("timed out while waiting for target halt");
1319                         break;
1320                 }
1321         }
1322
1323         return ERROR_OK;
1324 }
1325
1326 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1327 {
1328         int retval;
1329         target_t *target = get_current_target(cmd_ctx);
1330
1331         DEBUG("-");
1332
1333         command_print(cmd_ctx, "requesting target halt...");
1334
1335         if ((retval = target->type->halt(target)) != ERROR_OK)
1336         {
1337                 switch (retval)
1338                 {
1339                         case ERROR_TARGET_ALREADY_HALTED:
1340                                 command_print(cmd_ctx, "target already halted");
1341                                 break;
1342                         case ERROR_TARGET_TIMEOUT:
1343                                 command_print(cmd_ctx, "target timed out... shutting down");
1344                                 exit(-1);
1345                         default:
1346                                 command_print(cmd_ctx, "unknown error... shutting down");
1347                                 exit(-1);
1348                 }
1349         }
1350
1351         return ERROR_OK;
1352
1353 }
1354
1355 /* what to do on daemon startup */
1356 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1357 {
1358         if (argc == 1)
1359         {
1360                 if (strcmp(args[0], "attach") == 0)
1361                 {
1362                         startup_mode = DAEMON_ATTACH;
1363                         return ERROR_OK;
1364                 }
1365                 else if (strcmp(args[0], "reset") == 0)
1366                 {
1367                         startup_mode = DAEMON_RESET;
1368                         return ERROR_OK;
1369                 }
1370         }
1371
1372         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1373         return ERROR_OK;
1374
1375 }
1376
1377 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1378 {
1379         target_t *target = get_current_target(cmd_ctx);
1380         int retval;
1381
1382         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1383
1384         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1385         {
1386                 switch (retval)
1387                 {
1388                         case ERROR_TARGET_TIMEOUT:
1389                                 command_print(cmd_ctx, "target timed out... shutting down");
1390                                 exit(-1);
1391                         default:
1392                                 command_print(cmd_ctx, "unknown error... shutting down");
1393                                 exit(-1);
1394                 }
1395         }
1396
1397         return ERROR_OK;
1398 }
1399
1400 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1401 {
1402         target_t *target = get_current_target(cmd_ctx);
1403         enum target_reset_mode reset_mode = RESET_RUN;
1404
1405         DEBUG("-");
1406
1407         if (argc >= 1)
1408         {
1409                 if (strcmp("run", args[0]) == 0)
1410                         reset_mode = RESET_RUN;
1411                 else if (strcmp("halt", args[0]) == 0)
1412                         reset_mode = RESET_HALT;
1413                 else if (strcmp("init", args[0]) == 0)
1414                         reset_mode = RESET_INIT;
1415                 else if (strcmp("run_and_halt", args[0]) == 0)
1416                 {
1417                         reset_mode = RESET_RUN_AND_HALT;
1418                         if (argc >= 2)
1419                         {
1420                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1421                         }
1422                 }
1423                 else if (strcmp("run_and_init", args[0]) == 0)
1424                 {
1425                         reset_mode = RESET_RUN_AND_INIT;
1426                         if (argc >= 2)
1427                         {
1428                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1429                         }
1430                 }
1431                 else
1432                 {
1433                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1434                         return ERROR_OK;
1435                 }
1436                 target->reset_mode = reset_mode;
1437         }
1438
1439         target_process_reset(cmd_ctx);
1440
1441         return ERROR_OK;
1442 }
1443
1444 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1445 {
1446         int retval;
1447         target_t *target = get_current_target(cmd_ctx);
1448
1449         DEBUG("-");
1450
1451         if (argc == 0)
1452                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1453         else if (argc == 1)
1454                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1455         else
1456         {
1457                 command_print(cmd_ctx, "usage: resume [address]");
1458                 return ERROR_OK;
1459         }
1460
1461         if (retval != ERROR_OK)
1462         {
1463                 switch (retval)
1464                 {
1465                         case ERROR_TARGET_NOT_HALTED:
1466                                 command_print(cmd_ctx, "target not halted");
1467                                 break;
1468                         default:
1469                                 command_print(cmd_ctx, "unknown error... shutting down");
1470                                 exit(-1);
1471                 }
1472         }
1473
1474         return ERROR_OK;
1475 }
1476
1477 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1478 {
1479         target_t *target = get_current_target(cmd_ctx);
1480
1481         DEBUG("-");
1482
1483         if (argc == 0)
1484                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1485
1486         if (argc == 1)
1487                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1488
1489         return ERROR_OK;
1490 }
1491
1492 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1493 {
1494         int count = 1;
1495         int size = 4;
1496         u32 address = 0;
1497         int i;
1498
1499         char output[128];
1500         int output_len;
1501
1502         int retval;
1503
1504         u8 *buffer;
1505         target_t *target = get_current_target(cmd_ctx);
1506
1507         if (argc < 1)
1508                 return ERROR_OK;
1509
1510         if (argc == 2)
1511                 count = strtoul(args[1], NULL, 0);
1512
1513         address = strtoul(args[0], NULL, 0);
1514
1515
1516         switch (cmd[2])
1517         {
1518                 case 'w':
1519                         size = 4;
1520                         break;
1521                 case 'h':
1522                         size = 2;
1523                         break;
1524                 case 'b':
1525                         size = 1;
1526                         break;
1527                 default:
1528                         return ERROR_OK;
1529         }
1530
1531         buffer = calloc(count, size);
1532         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1533         {
1534                 switch (retval)
1535                 {
1536                         case ERROR_TARGET_UNALIGNED_ACCESS:
1537                                 command_print(cmd_ctx, "error: address not aligned");
1538                                 break;
1539                         case ERROR_TARGET_NOT_HALTED:
1540                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1541                                 break;
1542                         case ERROR_TARGET_DATA_ABORT:
1543                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1544                                 break;
1545                         default:
1546                                 command_print(cmd_ctx, "error: unknown error");
1547                                 break;
1548                 }
1549                 return ERROR_OK;
1550         }
1551
1552         output_len = 0;
1553
1554         for (i = 0; i < count; i++)
1555         {
1556                 if (i%8 == 0)
1557                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1558
1559                 switch (size)
1560                 {
1561                         case 4:
1562                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1563                                 break;
1564                         case 2:
1565                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1566                                 break;
1567                         case 1:
1568                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1569                                 break;
1570                 }
1571
1572                 if ((i%8 == 7) || (i == count - 1))
1573                 {
1574                         command_print(cmd_ctx, output);
1575                         output_len = 0;
1576                 }
1577         }
1578
1579         free(buffer);
1580
1581         return ERROR_OK;
1582 }
1583
1584 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1585 {
1586         u32 address = 0;
1587         u32 value = 0;
1588         int retval;
1589         target_t *target = get_current_target(cmd_ctx);
1590         u8 value_buf[4];
1591
1592         if (argc < 2)
1593                 return ERROR_OK;
1594
1595         address = strtoul(args[0], NULL, 0);
1596         value = strtoul(args[1], NULL, 0);
1597
1598         switch (cmd[2])
1599         {
1600                 case 'w':
1601                         target_buffer_set_u32(target, value_buf, value);
1602                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1603                         break;
1604                 case 'h':
1605                         target_buffer_set_u16(target, value_buf, value);
1606                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1607                         break;
1608                 case 'b':
1609                         value_buf[0] = value;
1610                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1611                         break;
1612                 default:
1613                         return ERROR_OK;
1614         }
1615
1616         switch (retval)
1617         {
1618                 case ERROR_TARGET_UNALIGNED_ACCESS:
1619                         command_print(cmd_ctx, "error: address not aligned");
1620                         break;
1621                 case ERROR_TARGET_DATA_ABORT:
1622                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1623                         break;
1624                 case ERROR_TARGET_NOT_HALTED:
1625                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1626                         break;
1627                 case ERROR_OK:
1628                         break;
1629                 default:
1630                         command_print(cmd_ctx, "error: unknown error");
1631                         break;
1632         }
1633
1634         return ERROR_OK;
1635
1636 }
1637
1638 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1639 {
1640         u32 address;
1641         u8 *buffer;
1642         u32 buf_cnt;
1643         u32 binary_size;
1644
1645         fileio_t file;
1646         enum fileio_pri_type pri_type = FILEIO_IMAGE;
1647         fileio_image_t image_info;
1648         enum fileio_sec_type sec_type;
1649
1650         duration_t duration;
1651         char *duration_text;
1652
1653         target_t *target = get_current_target(cmd_ctx);
1654
1655         if (argc < 2)
1656         {
1657                 command_print(cmd_ctx, "usage: load_image <filename> <address> [type]");
1658                 return ERROR_OK;
1659         }
1660
1661         memset(&file, 0, sizeof(fileio_t));
1662         fileio_identify_image_type(&sec_type, (argc == 3) ? args[2] : NULL);
1663
1664         image_info.base_address = strtoul(args[1], NULL, 0);
1665         image_info.has_start_address = 0;
1666
1667         buffer = malloc(128 * 1024);
1668
1669         duration_start_measure(&duration);
1670
1671         if (fileio_open(&file, args[0], FILEIO_READ,
1672                 pri_type, &image_info, sec_type) != ERROR_OK)
1673         {
1674                 command_print(cmd_ctx, "load_image error: %s", file.error_str);
1675                 return ERROR_OK;
1676         }
1677
1678         binary_size = file.size;
1679         address = image_info.base_address;
1680         while ((binary_size > 0) &&
1681                 (fileio_read(&file, 128 * 1024, buffer, &buf_cnt) == ERROR_OK))
1682         {
1683                 target_write_buffer(target, address, buf_cnt, buffer);
1684                 address += buf_cnt;
1685                 binary_size -= buf_cnt;
1686         }
1687
1688         free(buffer);
1689
1690         duration_stop_measure(&duration, &duration_text);
1691         command_print(cmd_ctx, "downloaded %lli byte in %s", file.size, duration_text);
1692         free(duration_text);
1693
1694         fileio_close(&file);
1695
1696         return ERROR_OK;
1697
1698 }
1699
1700 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1701 {
1702         fileio_t file;
1703         fileio_image_t image_info;
1704
1705         u32 address;
1706         u32 size;
1707         u8 buffer[560];
1708
1709         duration_t duration;
1710         char *duration_text;
1711
1712         target_t *target = get_current_target(cmd_ctx);
1713
1714         if (argc != 3)
1715         {
1716                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1717                 return ERROR_OK;
1718         }
1719
1720         address = strtoul(args[1], NULL, 0);
1721         size = strtoul(args[2], NULL, 0);
1722
1723         if ((address & 3) || (size & 3))
1724         {
1725                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1726                 return ERROR_OK;
1727         }
1728
1729         image_info.base_address = address;
1730         image_info.has_start_address = 0;
1731
1732         if (fileio_open(&file, args[0], FILEIO_WRITE,
1733                 FILEIO_IMAGE, &image_info, FILEIO_PLAIN) != ERROR_OK)
1734         {
1735                 command_print(cmd_ctx, "dump_image error: %s", file.error_str);
1736                 return ERROR_OK;
1737         }
1738
1739         duration_start_measure(&duration);
1740
1741         while (size > 0)
1742         {
1743                 u32 size_written;
1744                 u32 this_run_size = (size > 560) ? 560 : size;
1745
1746                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1747                 fileio_write(&file, this_run_size, buffer, &size_written);
1748
1749                 size -= this_run_size;
1750                 address += this_run_size;
1751         }
1752
1753         fileio_close(&file);
1754
1755         duration_stop_measure(&duration, &duration_text);
1756         command_print(cmd_ctx, "dumped %lli byte in %s", file.size, duration_text);
1757         free(duration_text);
1758
1759         return ERROR_OK;
1760
1761 }
1762
1763 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1764 {
1765         int retval;
1766         target_t *target = get_current_target(cmd_ctx);
1767
1768         if (argc == 0)
1769         {
1770                 breakpoint_t *breakpoint = target->breakpoints;
1771
1772                 while (breakpoint)
1773                 {
1774                         if (breakpoint->type == BKPT_SOFT)
1775                         {
1776                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
1777                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1778                                 free(buf);
1779                         }
1780                         else
1781                         {
1782                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1783                         }
1784                         breakpoint = breakpoint->next;
1785                 }
1786         }
1787         else if (argc >= 2)
1788         {
1789                 int hw = BKPT_SOFT;
1790                 u32 length = 0;
1791
1792                 length = strtoul(args[1], NULL, 0);
1793
1794                 if (argc >= 3)
1795                         if (strcmp(args[2], "hw") == 0)
1796                                 hw = BKPT_HARD;
1797
1798                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1799                 {
1800                         switch (retval)
1801                         {
1802                                 case ERROR_TARGET_NOT_HALTED:
1803                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1804                                         break;
1805                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1806                                         command_print(cmd_ctx, "no more breakpoints available");
1807                                         break;
1808                                 default:
1809                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1810                                         break;
1811                         }
1812                 }
1813                 else
1814                 {
1815                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
1816                 }
1817         }
1818         else
1819         {
1820                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
1821         }
1822
1823         return ERROR_OK;
1824 }
1825
1826 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1827 {
1828         target_t *target = get_current_target(cmd_ctx);
1829
1830         if (argc > 0)
1831                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1832
1833         return ERROR_OK;
1834 }
1835
1836 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1837 {
1838         target_t *target = get_current_target(cmd_ctx);
1839
1840         if (argc == 0)
1841         {
1842                 watchpoint_t *watchpoint = target->watchpoints;
1843
1844                 while (watchpoint)
1845                 {
1846                         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);
1847                         watchpoint = watchpoint->next;
1848                 }
1849         }
1850         else if (argc >= 2)
1851         {
1852                 enum watchpoint_rw type = WPT_ACCESS;
1853                 u32 data_value = 0x0;
1854                 u32 data_mask = 0xffffffff;
1855
1856                 if (argc >= 3)
1857                 {
1858                         switch(args[2][0])
1859                         {
1860                                 case 'r':
1861                                         type = WPT_READ;
1862                                         break;
1863                                 case 'w':
1864                                         type = WPT_WRITE;
1865                                         break;
1866                                 case 'a':
1867                                         type = WPT_ACCESS;
1868                                         break;
1869                                 default:
1870                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1871                                         return ERROR_OK;
1872                         }
1873                 }
1874                 if (argc >= 4)
1875                 {
1876                         data_value = strtoul(args[3], NULL, 0);
1877                 }
1878                 if (argc >= 5)
1879                 {
1880                         data_mask = strtoul(args[4], NULL, 0);
1881                 }
1882                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1883         }
1884         else
1885         {
1886                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1887         }
1888
1889         return ERROR_OK;
1890 }
1891
1892 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1893 {
1894         target_t *target = get_current_target(cmd_ctx);
1895
1896         if (argc > 0)
1897                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1898
1899         return ERROR_OK;
1900 }
1901