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 #include <image.h>
  47
  48 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  49
  50 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  51 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53
  54 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57
  58 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74
  75 /* targets
  76  */
  77 extern target_type_t arm7tdmi_target;
  78 extern target_type_t arm720t_target;
  79 extern target_type_t arm9tdmi_target;
  80 extern target_type_t arm920t_target;
  81 extern target_type_t arm966e_target;
  82 extern target_type_t arm926ejs_target;
  83 extern target_type_t xscale_target;
  84
  85 target_type_t *target_types[] =
  86 {
  87         &arm7tdmi_target,
  88         &arm9tdmi_target,
  89         &arm920t_target,
  90         &arm720t_target,
  91         &arm966e_target,
  92         &arm926ejs_target,
  93         &xscale_target,
  94         NULL,
  95 };
  96
  97 target_t *targets = NULL;
  98 target_event_callback_t *target_event_callbacks = NULL;
  99 target_timer_callback_t *target_timer_callbacks = NULL;
 100
 101 char *target_state_strings[] =
 102 {
 103         "unknown",
 104         "running",
 105         "halted",
 106         "reset",
 107         "debug_running",
 108 };
 109
 110 char *target_debug_reason_strings[] =
 111 {
 112         "debug request", "breakpoint", "watchpoint",
 113         "watchpoint and breakpoint", "single step",
 114         "target not halted"
 115 };
 116
 117 char *target_endianess_strings[] =
 118 {
 119         "big endian",
 120         "little endian",
 121 };
 122
 123 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 124
 125 static int target_continous_poll = 1;
 126
 127 /* read a u32 from a buffer in target memory endianness */
 128 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 129 {
 130         if (target->endianness == TARGET_LITTLE_ENDIAN)
 131                 return le_to_h_u32(buffer);
 132         else
 133                 return be_to_h_u32(buffer);
 134 }
 135
 136 /* read a u16 from a buffer in target memory endianness */
 137 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 138 {
 139         if (target->endianness == TARGET_LITTLE_ENDIAN)
 140                 return le_to_h_u16(buffer);
 141         else
 142                 return be_to_h_u16(buffer);
 143 }
 144
 145 /* write a u32 to a buffer in target memory endianness */
 146 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 147 {
 148         if (target->endianness == TARGET_LITTLE_ENDIAN)
 149                 h_u32_to_le(buffer, value);
 150         else
 151                 h_u32_to_be(buffer, value);
 152 }
 153
 154 /* write a u16 to a buffer in target memory endianness */
 155 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 156 {
 157         if (target->endianness == TARGET_LITTLE_ENDIAN)
 158                 h_u16_to_le(buffer, value);
 159         else
 160                 h_u16_to_be(buffer, value);
 161 }
 162
 163 /* returns a pointer to the n-th configured target */
 164 target_t* get_target_by_num(int num)
 165 {
 166         target_t *target = targets;
 167         int i = 0;
 168
 169         while (target)
 170         {
 171                 if (num == i)
 172                         return target;
 173                 target = target->next;
 174                 i++;
 175         }
 176
 177         return NULL;
 178 }
 179
 180 int get_num_by_target(target_t *query_target)
 181 {
 182         target_t *target = targets;
 183         int i = 0;
 184
 185         while (target)
 186         {
 187                 if (target == query_target)
 188                         return i;
 189                 target = target->next;
 190                 i++;
 191         }
 192
 193         return -1;
 194 }
 195
 196 target_t* get_current_target(command_context_t *cmd_ctx)
 197 {
 198         target_t *target = get_target_by_num(cmd_ctx->current_target);
 199
 200         if (target == NULL)
 201         {
 202                 ERROR("BUG: current_target out of bounds");
 203                 exit(-1);
 204         }
 205
 206         return target;
 207 }
 208
 209 /* Process target initialization, when target entered debug out of reset
 210  * the handler is unregistered at the end of this function, so it's only called once
 211  */
 212 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 213 {
 214         FILE *script;
 215         struct command_context_s *cmd_ctx = priv;
 216
 217         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 218         {
 219                 target_unregister_event_callback(target_init_handler, priv);
 220
 221                 script = fopen(target->reset_script, "r");
 222                 if (!script)
 223                 {
 224                         ERROR("couldn't open script file %s", target->reset_script);
 225                                 return ERROR_OK;
 226                 }
 227
 228                 INFO("executing reset script '%s'", target->reset_script);
 229                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 230                 fclose(script);
 231
 232                 jtag_execute_queue();
 233         }
 234
 235         return ERROR_OK;
 236 }
 237
 238 int target_run_and_halt_handler(void *priv)
 239 {
 240         target_t *target = priv;
 241
 242         target->type->halt(target);
 243
 244         return ERROR_OK;
 245 }
 246
 247 int target_process_reset(struct command_context_s *cmd_ctx)
 248 {
 249         int retval = ERROR_OK;
 250         target_t *target;
 251
 252         /* prepare reset_halt where necessary */
 253         target = targets;
 254         while (target)
 255         {
 256                 switch (target->reset_mode)
 257                 {
 258                         case RESET_HALT:
 259                         case RESET_INIT:
 260                                 target->type->prepare_reset_halt(target);
 261                                 break;
 262                         default:
 263                                 break;
 264                 }
 265                 target = target->next;
 266         }
 267
 268         target = targets;
 269         while (target)
 270         {
 271                 target->type->assert_reset(target);
 272                 target = target->next;
 273         }
 274         jtag_execute_queue();
 275
 276         /* request target halt if necessary, and schedule further action */
 277         target = targets;
 278         while (target)
 279         {
 280                 switch (target->reset_mode)
 281                 {
 282                         case RESET_RUN:
 283                                 /* nothing to do if target just wants to be run */
 284                                 break;
 285                         case RESET_RUN_AND_HALT:
 286                                 /* schedule halt */
 287                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 288                                 break;
 289                         case RESET_RUN_AND_INIT:
 290                                 /* schedule halt */
 291                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 292                                 target_register_event_callback(target_init_handler, cmd_ctx);
 293                                 break;
 294                         case RESET_HALT:
 295                                 target->type->halt(target);
 296                                 break;
 297                         case RESET_INIT:
 298                                 target->type->halt(target);
 299                                 target_register_event_callback(target_init_handler, cmd_ctx);
 300                                 break;
 301                         default:
 302                                 ERROR("BUG: unknown target->reset_mode");
 303                 }
 304                 target = target->next;
 305         }
 306
 307         target = targets;
 308         while (target)
 309         {
 310                 target->type->deassert_reset(target);
 311                 target = target->next;
 312         }
 313         jtag_execute_queue();
 314
 315         return retval;
 316 }
 317
 318 int target_init(struct command_context_s *cmd_ctx)
 319 {
 320         target_t *target = targets;
 321
 322         while (target)
 323         {
 324                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 325                 {
 326                         ERROR("target '%s' init failed", target->type->name);
 327                         exit(-1);
 328                 }
 329                 target = target->next;
 330         }
 331
 332         if (targets)
 333         {
 334                 target_register_user_commands(cmd_ctx);
 335                 target_register_timer_callback(handle_target, 100, 1, NULL);
 336         }
 337
 338         if (startup_mode == DAEMON_RESET)
 339                 target_process_reset(cmd_ctx);
 340
 341         return ERROR_OK;
 342 }
 343
 344 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 345 {
 346         target_event_callback_t **callbacks_p = &target_event_callbacks;
 347
 348         if (callback == NULL)
 349         {
 350                 return ERROR_INVALID_ARGUMENTS;
 351         }
 352
 353         if (*callbacks_p)
 354         {
 355                 while ((*callbacks_p)->next)
 356                         callbacks_p = &((*callbacks_p)->next);
 357                 callbacks_p = &((*callbacks_p)->next);
 358         }
 359
 360         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 361         (*callbacks_p)->callback = callback;
 362         (*callbacks_p)->priv = priv;
 363         (*callbacks_p)->next = NULL;
 364
 365         return ERROR_OK;
 366 }
 367
 368 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 369 {
 370         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 371         struct timeval now;
 372
 373         if (callback == NULL)
 374         {
 375                 return ERROR_INVALID_ARGUMENTS;
 376         }
 377
 378         if (*callbacks_p)
 379         {
 380                 while ((*callbacks_p)->next)
 381                         callbacks_p = &((*callbacks_p)->next);
 382                 callbacks_p = &((*callbacks_p)->next);
 383         }
 384
 385         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 386         (*callbacks_p)->callback = callback;
 387         (*callbacks_p)->periodic = periodic;
 388         (*callbacks_p)->time_ms = time_ms;
 389
 390         gettimeofday(&now, NULL);
 391         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 392         time_ms -= (time_ms % 1000);
 393         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 394         if ((*callbacks_p)->when.tv_usec > 1000000)
 395         {
 396                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 397                 (*callbacks_p)->when.tv_sec += 1;
 398         }
 399
 400         (*callbacks_p)->priv = priv;
 401         (*callbacks_p)->next = NULL;
 402
 403         return ERROR_OK;
 404 }
 405
 406 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 407 {
 408         target_event_callback_t **p = &target_event_callbacks;
 409         target_event_callback_t *c = target_event_callbacks;
 410
 411         if (callback == NULL)
 412         {
 413                 return ERROR_INVALID_ARGUMENTS;
 414         }
 415
 416         while (c)
 417         {
 418                 target_event_callback_t *next = c->next;
 419                 if ((c->callback == callback) && (c->priv == priv))
 420                 {
 421                         *p = next;
 422                         free(c);
 423                         return ERROR_OK;
 424                 }
 425                 else
 426                         p = &(c->next);
 427                 c = next;
 428         }
 429
 430         return ERROR_OK;
 431 }
 432
 433 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 434 {
 435         target_timer_callback_t **p = &target_timer_callbacks;
 436         target_timer_callback_t *c = target_timer_callbacks;
 437
 438         if (callback == NULL)
 439         {
 440                 return ERROR_INVALID_ARGUMENTS;
 441         }
 442
 443         while (c)
 444         {
 445                 target_timer_callback_t *next = c->next;
 446                 if ((c->callback == callback) && (c->priv == priv))
 447                 {
 448                         *p = next;
 449                         free(c);
 450                         return ERROR_OK;
 451                 }
 452                 else
 453                         p = &(c->next);
 454                 c = next;
 455         }
 456
 457         return ERROR_OK;
 458 }
 459
 460 int target_call_event_callbacks(target_t *target, enum target_event event)
 461 {
 462         target_event_callback_t *callback = target_event_callbacks;
 463         target_event_callback_t *next_callback;
 464
 465         DEBUG("target event %i", event);
 466
 467         while (callback)
 468         {
 469                 next_callback = callback->next;
 470                 callback->callback(target, event, callback->priv);
 471                 callback = next_callback;
 472         }
 473
 474         return ERROR_OK;
 475 }
 476
 477 int target_call_timer_callbacks()
 478 {
 479         target_timer_callback_t *callback = target_timer_callbacks;
 480         target_timer_callback_t *next_callback;
 481         struct timeval now;
 482
 483         gettimeofday(&now, NULL);
 484
 485         while (callback)
 486         {
 487                 next_callback = callback->next;
 488
 489                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 490                         || (now.tv_sec > callback->when.tv_sec))
 491                 {
 492                         callback->callback(callback->priv);
 493                         if (callback->periodic)
 494                         {
 495                                 int time_ms = callback->time_ms;
 496                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 497                                 time_ms -= (time_ms % 1000);
 498                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 499                                 if (callback->when.tv_usec > 1000000)
 500                                 {
 501                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 502                                         callback->when.tv_sec += 1;
 503                                 }
 504                         }
 505                         else
 506                                 target_unregister_timer_callback(callback->callback, callback->priv);
 507                 }
 508
 509                 callback = next_callback;
 510         }
 511
 512         return ERROR_OK;
 513 }
 514
 515 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 516 {
 517         working_area_t *c = target->working_areas;
 518         working_area_t *new_wa = NULL;
 519
 520         /* only allocate multiples of 4 byte */
 521         if (size % 4)
 522         {
 523                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 524                 size = CEIL(size, 4);
 525         }
 526
 527         /* see if there's already a matching working area */
 528         while (c)
 529         {
 530                 if ((c->free) && (c->size == size))
 531                 {
 532                         new_wa = c;
 533                         break;
 534                 }
 535                 c = c->next;
 536         }
 537
 538         /* if not, allocate a new one */
 539         if (!new_wa)
 540         {
 541                 working_area_t **p = &target->working_areas;
 542                 u32 first_free = target->working_area;
 543                 u32 free_size = target->working_area_size;
 544
 545                 DEBUG("allocating new working area");
 546
 547                 c = target->working_areas;
 548                 while (c)
 549                 {
 550                         first_free += c->size;
 551                         free_size -= c->size;
 552                         p = &c->next;
 553                         c = c->next;
 554                 }
 555
 556                 if (free_size < size)
 557                 {
 558                         WARNING("not enough working area available");
 559                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 560                 }
 561
 562                 new_wa = malloc(sizeof(working_area_t));
 563                 new_wa->next = NULL;
 564                 new_wa->size = size;
 565                 new_wa->address = first_free;
 566
 567                 if (target->backup_working_area)
 568                 {
 569                         new_wa->backup = malloc(new_wa->size);
 570                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 571                 }
 572                 else
 573                 {
 574                         new_wa->backup = NULL;
 575                 }
 576
 577                 /* put new entry in list */
 578                 *p = new_wa;
 579         }
 580
 581         /* mark as used, and return the new (reused) area */
 582         new_wa->free = 0;
 583         *area = new_wa;
 584
 585         /* user pointer */
 586         new_wa->user = area;
 587
 588         return ERROR_OK;
 589 }
 590
 591 int target_free_working_area(struct target_s *target, working_area_t *area)
 592 {
 593         if (area->free)
 594                 return ERROR_OK;
 595
 596         if (target->backup_working_area)
 597                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 598
 599         area->free = 1;
 600
 601         /* mark user pointer invalid */
 602         *area->user = NULL;
 603         area->user = NULL;
 604
 605         return ERROR_OK;
 606 }
 607
 608 int target_free_all_working_areas(struct target_s *target)
 609 {
 610         working_area_t *c = target->working_areas;
 611
 612         while (c)
 613         {
 614                 working_area_t *next = c->next;
 615                 target_free_working_area(target, c);
 616
 617                 if (c->backup)
 618                         free(c->backup);
 619
 620                 free(c);
 621
 622                 c = next;
 623         }
 624
 625         target->working_areas = NULL;
 626
 627         return ERROR_OK;
 628 }
 629
 630 int target_register_commands(struct command_context_s *cmd_ctx)
 631 {
 632         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 633         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 634         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 635         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 636         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 637         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 638
 639         return ERROR_OK;
 640 }
 641
 642 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 643 {
 644         int retval;
 645
 646         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 647
 648         /* handle writes of less than 4 byte */
 649         if (size < 4)
 650         {
 651                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 652                         return retval;
 653         }
 654
 655         /* handle unaligned head bytes */
 656         if (address % 4)
 657         {
 658                 int unaligned = 4 - (address % 4);
 659
 660                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 661                         return retval;
 662
 663                 buffer += unaligned;
 664                 address += unaligned;
 665                 size -= unaligned;
 666         }
 667
 668         /* handle aligned words */
 669         if (size >= 4)
 670         {
 671                 int aligned = size - (size % 4);
 672
 673                 /* use bulk writes above a certain limit. This may have to be changed */
 674                 if (aligned > 128)
 675                 {
 676                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 677                                 return retval;
 678                 }
 679                 else
 680                 {
 681                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 682                                 return retval;
 683                 }
 684
 685                 buffer += aligned;
 686                 address += aligned;
 687                 size -= aligned;
 688         }
 689
 690         /* handle tail writes of less than 4 bytes */
 691         if (size > 0)
 692         {
 693                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 694                         return retval;
 695         }
 696
 697         return ERROR_OK;
 698 }
 699
 700 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 701 {
 702         int retval;
 703
 704         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 705
 706         /* handle reads of less than 4 byte */
 707         if (size < 4)
 708         {
 709                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 710                         return retval;
 711         }
 712
 713         /* handle unaligned head bytes */
 714         if (address % 4)
 715         {
 716                 int unaligned = 4 - (address % 4);
 717
 718                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 719                         return retval;
 720
 721                 buffer += unaligned;
 722                 address += unaligned;
 723                 size -= unaligned;
 724         }
 725
 726         /* handle aligned words */
 727         if (size >= 4)
 728         {
 729                 int aligned = size - (size % 4);
 730
 731                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 732                         return retval;
 733
 734                 buffer += aligned;
 735                 address += aligned;
 736                 size -= aligned;
 737         }
 738
 739         /* handle tail writes of less than 4 bytes */
 740         if (size > 0)
 741         {
 742                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 743                         return retval;
 744         }
 745
 746         return ERROR_OK;
 747 }
 748
 749 int target_read_u32(struct target_s *target, u32 address, u32 *value)
 750 {
 751         u8 value_buf[4];
 752
 753         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
 754
 755         if (retval == ERROR_OK)
 756         {
 757                 *value = target_buffer_get_u32(target, value_buf);
 758                 DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 759         }
 760         else
 761         {
 762                 *value = 0x0;
 763                 DEBUG("address: 0x%8.8x failed", address);
 764         }
 765
 766         return retval;
 767 }
 768
 769 int target_read_u16(struct target_s *target, u32 address, u16 *value)
 770 {
 771         u8 value_buf[2];
 772
 773         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
 774
 775         if (retval == ERROR_OK)
 776         {
 777                 *value = target_buffer_get_u16(target, value_buf);
 778                 DEBUG("address: 0x%8.8x, value: 0x%4.4x", 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_read_u8(struct target_s *target, u32 address, u8 *value)
 790 {
 791         int retval = target->type->read_memory(target, address, 1, 1, value);
 792
 793         if (retval == ERROR_OK)
 794         {
 795                 DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
 796         }
 797         else
 798         {
 799                 *value = 0x0;
 800                 DEBUG("address: 0x%8.8x failed", address);
 801         }
 802
 803         return retval;
 804 }
 805
 806 int target_write_u32(struct target_s *target, u32 address, u32 value)
 807 {
 808         int retval;
 809         u8 value_buf[4];
 810
 811         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 812
 813         target_buffer_set_u32(target, value_buf, value);
 814         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
 815         {
 816                 DEBUG("failed: %i", retval);
 817         }
 818
 819         return retval;
 820 }
 821
 822 int target_write_u16(struct target_s *target, u32 address, u16 value)
 823 {
 824         int retval;
 825         u8 value_buf[2];
 826
 827         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 828
 829         target_buffer_set_u16(target, value_buf, value);
 830         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
 831         {
 832                 DEBUG("failed: %i", retval);
 833         }
 834
 835         return retval;
 836 }
 837
 838 int target_write_u8(struct target_s *target, u32 address, u8 value)
 839 {
 840         int retval;
 841
 842         DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
 843
 844         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
 845         {
 846                 DEBUG("failed: %i", retval);
 847         }
 848
 849         return retval;
 850 }
 851
 852 int target_register_user_commands(struct command_context_s *cmd_ctx)
 853 {
 854         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 855         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 856         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
 857         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 858         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 859         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 860         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 861         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 862
 863         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 864         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 865         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 866
 867         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 868         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 869         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 870
 871         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 872         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 873         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 874         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 875
 876         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf']");
 877         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
 878         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
 879         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
 880
 881         return ERROR_OK;
 882 }
 883
 884 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 885 {
 886         target_t *target = targets;
 887         int count = 0;
 888
 889         if (argc == 1)
 890         {
 891                 int num = strtoul(args[0], NULL, 0);
 892
 893                 while (target)
 894                 {
 895                         count++;
 896                         target = target->next;
 897                 }
 898
 899                 if (num < count)
 900                         cmd_ctx->current_target = num;
 901                 else
 902                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 903
 904                 return ERROR_OK;
 905         }
 906
 907         while (target)
 908         {
 909                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 910                 target = target->next;
 911         }
 912
 913         return ERROR_OK;
 914 }
 915
 916 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 917 {
 918         int i;
 919         int found = 0;
 920
 921         if (argc < 3)
 922         {
 923                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 924                 exit(-1);
 925         }
 926
 927         /* search for the specified target */
 928         if (args[0] && (args[0][0] != 0))
 929         {
 930                 for (i = 0; target_types[i]; i++)
 931                 {
 932                         if (strcmp(args[0], target_types[i]->name) == 0)
 933                         {
 934                                 target_t **last_target_p = &targets;
 935
 936                                 /* register target specific commands */
 937                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 938                                 {
 939                                         ERROR("couldn't register '%s' commands", args[0]);
 940                                         exit(-1);
 941                                 }
 942
 943                                 if (*last_target_p)
 944                                 {
 945                                         while ((*last_target_p)->next)
 946                                                 last_target_p = &((*last_target_p)->next);
 947                                         last_target_p = &((*last_target_p)->next);
 948                                 }
 949
 950                                 *last_target_p = malloc(sizeof(target_t));
 951
 952                                 (*last_target_p)->type = target_types[i];
 953
 954                                 if (strcmp(args[1], "big") == 0)
 955                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 956                                 else if (strcmp(args[1], "little") == 0)
 957                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 958                                 else
 959                                 {
 960                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 961                                         exit(-1);
 962                                 }
 963
 964                                 /* what to do on a target reset */
 965                                 if (strcmp(args[2], "reset_halt") == 0)
 966                                         (*last_target_p)->reset_mode = RESET_HALT;
 967                                 else if (strcmp(args[2], "reset_run") == 0)
 968                                         (*last_target_p)->reset_mode = RESET_RUN;
 969                                 else if (strcmp(args[2], "reset_init") == 0)
 970                                         (*last_target_p)->reset_mode = RESET_INIT;
 971                                 else if (strcmp(args[2], "run_and_halt") == 0)
 972                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 973                                 else if (strcmp(args[2], "run_and_init") == 0)
 974                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 975                                 else
 976                                 {
 977                                         ERROR("unknown target startup mode %s", args[2]);
 978                                         exit(-1);
 979                                 }
 980                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 981
 982                                 (*last_target_p)->reset_script = NULL;
 983                                 (*last_target_p)->post_halt_script = NULL;
 984                                 (*last_target_p)->pre_resume_script = NULL;
 985
 986                                 (*last_target_p)->working_area = 0x0;
 987                                 (*last_target_p)->working_area_size = 0x0;
 988                                 (*last_target_p)->working_areas = NULL;
 989                                 (*last_target_p)->backup_working_area = 0;
 990
 991                                 (*last_target_p)->state = TARGET_UNKNOWN;
 992                                 (*last_target_p)->reg_cache = NULL;
 993                                 (*last_target_p)->breakpoints = NULL;
 994                                 (*last_target_p)->watchpoints = NULL;
 995                                 (*last_target_p)->next = NULL;
 996                                 (*last_target_p)->arch_info = NULL;
 997
 998                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 999
1000                                 found = 1;
1001                                 break;
1002                         }
1003                 }
1004         }
1005
1006         /* no matching target found */
1007         if (!found)
1008         {
1009                 ERROR("target '%s' not found", args[0]);
1010                 exit(-1);
1011         }
1012
1013         return ERROR_OK;
1014 }
1015
1016 /* usage: target_script <target#> <event> <script_file> */
1017 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1018 {
1019         target_t *target = NULL;
1020
1021         if (argc < 3)
1022         {
1023                 ERROR("incomplete target_script command");
1024                 exit(-1);
1025         }
1026
1027         target = get_target_by_num(strtoul(args[0], NULL, 0));
1028
1029         if (!target)
1030         {
1031                 ERROR("target number '%s' not defined", args[0]);
1032                 exit(-1);
1033         }
1034
1035         if (strcmp(args[1], "reset") == 0)
1036         {
1037                 if (target->reset_script)
1038                         free(target->reset_script);
1039                 target->reset_script = strdup(args[2]);
1040         }
1041         else if (strcmp(args[1], "post_halt") == 0)
1042         {
1043                 if (target->post_halt_script)
1044                         free(target->post_halt_script);
1045                 target->post_halt_script = strdup(args[2]);
1046         }
1047         else if (strcmp(args[1], "pre_resume") == 0)
1048         {
1049                 if (target->pre_resume_script)
1050                         free(target->pre_resume_script);
1051                 target->pre_resume_script = strdup(args[2]);
1052         }
1053         else
1054         {
1055                 ERROR("unknown event type: '%s", args[1]);
1056                 exit(-1);
1057         }
1058
1059         return ERROR_OK;
1060 }
1061
1062 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1063 {
1064         target_t *target = NULL;
1065
1066         if (argc < 2)
1067         {
1068                 ERROR("incomplete run_and_halt_time command");
1069                 exit(-1);
1070         }
1071
1072         target = get_target_by_num(strtoul(args[0], NULL, 0));
1073
1074         if (!target)
1075         {
1076                 ERROR("target number '%s' not defined", args[0]);
1077                 exit(-1);
1078         }
1079
1080         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1081
1082         return ERROR_OK;
1083 }
1084
1085 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1086 {
1087         target_t *target = NULL;
1088
1089         if (argc < 4)
1090         {
1091                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1092                 exit(-1);
1093         }
1094
1095         target = get_target_by_num(strtoul(args[0], NULL, 0));
1096
1097         if (!target)
1098         {
1099                 ERROR("target number '%s' not defined", args[0]);
1100                 exit(-1);
1101         }
1102
1103         target->working_area = strtoul(args[1], NULL, 0);
1104         target->working_area_size = strtoul(args[2], NULL, 0);
1105
1106         if (strcmp(args[3], "backup") == 0)
1107         {
1108                 target->backup_working_area = 1;
1109         }
1110         else if (strcmp(args[3], "nobackup") == 0)
1111         {
1112                 target->backup_working_area = 0;
1113         }
1114         else
1115         {
1116                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1117                 exit(-1);
1118         }
1119
1120         return ERROR_OK;
1121 }
1122
1123
1124 /* process target state changes */
1125 int handle_target(void *priv)
1126 {
1127         int retval;
1128         target_t *target = targets;
1129
1130         while (target)
1131         {
1132                 /* only poll if target isn't already halted */
1133                 if (target->state != TARGET_HALTED)
1134                 {
1135                         if (target_continous_poll)
1136                                 if ((retval = target->type->poll(target)) < 0)
1137                                 {
1138                                         ERROR("couldn't poll target, exiting");
1139                                         exit(-1);
1140                                 }
1141                 }
1142
1143                 target = target->next;
1144         }
1145
1146         return ERROR_OK;
1147 }
1148
1149 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1150 {
1151         target_t *target;
1152         reg_t *reg = NULL;
1153         int count = 0;
1154         char *value;
1155
1156         DEBUG("-");
1157
1158         target = get_current_target(cmd_ctx);
1159
1160         /* list all available registers for the current target */
1161         if (argc == 0)
1162         {
1163                 reg_cache_t *cache = target->reg_cache;
1164
1165                 count = 0;
1166                 while(cache)
1167                 {
1168                         int i;
1169                         for (i = 0; i < cache->num_regs; i++)
1170                         {
1171                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1172                                 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);
1173                                 free(value);
1174                         }
1175                         cache = cache->next;
1176                 }
1177
1178                 return ERROR_OK;
1179         }
1180
1181         /* access a single register by its ordinal number */
1182         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1183         {
1184                 int num = strtoul(args[0], NULL, 0);
1185                 reg_cache_t *cache = target->reg_cache;
1186
1187                 count = 0;
1188                 while(cache)
1189                 {
1190                         int i;
1191                         for (i = 0; i < cache->num_regs; i++)
1192                         {
1193                                 if (count++ == num)
1194                                 {
1195                                         reg = &cache->reg_list[i];
1196                                         break;
1197                                 }
1198                         }
1199                         if (reg)
1200                                 break;
1201                         cache = cache->next;
1202                 }
1203
1204                 if (!reg)
1205                 {
1206                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1207                         return ERROR_OK;
1208                 }
1209         } else /* access a single register by its name */
1210         {
1211                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1212
1213                 if (!reg)
1214                 {
1215                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1216                         return ERROR_OK;
1217                 }
1218         }
1219
1220         /* display a register */
1221         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1222         {
1223                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1224                         reg->valid = 0;
1225
1226                 if (reg->valid == 0)
1227                 {
1228                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1229                         if (arch_type == NULL)
1230                         {
1231                                 ERROR("BUG: encountered unregistered arch type");
1232                                 return ERROR_OK;
1233                         }
1234                         arch_type->get(reg);
1235                 }
1236                 value = buf_to_str(reg->value, reg->size, 16);
1237                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1238                 free(value);
1239                 return ERROR_OK;
1240         }
1241
1242         /* set register value */
1243         if (argc == 2)
1244         {
1245                 u8 *buf = malloc(CEIL(reg->size, 8));
1246                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1247
1248                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1249                 if (arch_type == NULL)
1250                 {
1251                         ERROR("BUG: encountered unregistered arch type");
1252                         return ERROR_OK;
1253                 }
1254
1255                 arch_type->set(reg, buf);
1256
1257                 value = buf_to_str(reg->value, reg->size, 16);
1258                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1259                 free(value);
1260
1261                 free(buf);
1262
1263                 return ERROR_OK;
1264         }
1265
1266         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1267
1268         return ERROR_OK;
1269 }
1270
1271 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1272 {
1273         target_t *target = get_current_target(cmd_ctx);
1274         char buffer[512];
1275
1276         if (argc == 0)
1277         {
1278                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1279                 if (target->state == TARGET_HALTED)
1280                 {
1281                         target->type->arch_state(target, buffer, 512);
1282                         buffer[511] = 0;
1283                         command_print(cmd_ctx, "%s", buffer);
1284                 }
1285         }
1286         else
1287         {
1288                 if (strcmp(args[0], "on") == 0)
1289                 {
1290                         target_continous_poll = 1;
1291                 }
1292                 else if (strcmp(args[0], "off") == 0)
1293                 {
1294                         target_continous_poll = 0;
1295                 }
1296         }
1297
1298
1299         return ERROR_OK;
1300 }
1301
1302 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1303 {
1304         target_t *target = get_current_target(cmd_ctx);
1305         struct timeval timeout, now;
1306
1307         gettimeofday(&timeout, NULL);
1308         if (!argc)
1309                 timeval_add_time(&timeout, 5, 0);
1310         else {
1311                 char *end;
1312
1313                 timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
1314                 if (*end) {
1315                         command_print(cmd_ctx, "usage: wait_halt [seconds]");
1316                         return ERROR_OK;
1317                 }
1318         }
1319
1320         command_print(cmd_ctx, "waiting for target halted...");
1321
1322         while(target->type->poll(target))
1323         {
1324                 if (target->state == TARGET_HALTED)
1325                 {
1326                         command_print(cmd_ctx, "target halted");
1327                         break;
1328                 }
1329                 target_call_timer_callbacks();
1330
1331                 gettimeofday(&now, NULL);
1332                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1333                 {
1334                         command_print(cmd_ctx, "timed out while waiting for target halt");
1335                         ERROR("timed out while waiting for target halt");
1336                         break;
1337                 }
1338         }
1339
1340         return ERROR_OK;
1341 }
1342
1343 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1344 {
1345         int retval;
1346         target_t *target = get_current_target(cmd_ctx);
1347
1348         DEBUG("-");
1349
1350         command_print(cmd_ctx, "requesting target halt...");
1351
1352         if ((retval = target->type->halt(target)) != ERROR_OK)
1353         {
1354                 switch (retval)
1355                 {
1356                         case ERROR_TARGET_ALREADY_HALTED:
1357                                 command_print(cmd_ctx, "target already halted");
1358                                 break;
1359                         case ERROR_TARGET_TIMEOUT:
1360                                 command_print(cmd_ctx, "target timed out... shutting down");
1361                                 exit(-1);
1362                         default:
1363                                 command_print(cmd_ctx, "unknown error... shutting down");
1364                                 exit(-1);
1365                 }
1366         }
1367
1368         return ERROR_OK;
1369
1370 }
1371
1372 /* what to do on daemon startup */
1373 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1374 {
1375         if (argc == 1)
1376         {
1377                 if (strcmp(args[0], "attach") == 0)
1378                 {
1379                         startup_mode = DAEMON_ATTACH;
1380                         return ERROR_OK;
1381                 }
1382                 else if (strcmp(args[0], "reset") == 0)
1383                 {
1384                         startup_mode = DAEMON_RESET;
1385                         return ERROR_OK;
1386                 }
1387         }
1388
1389         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1390         return ERROR_OK;
1391
1392 }
1393
1394 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1395 {
1396         target_t *target = get_current_target(cmd_ctx);
1397         int retval;
1398
1399         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1400
1401         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1402         {
1403                 switch (retval)
1404                 {
1405                         case ERROR_TARGET_TIMEOUT:
1406                                 command_print(cmd_ctx, "target timed out... shutting down");
1407                                 exit(-1);
1408                         default:
1409                                 command_print(cmd_ctx, "unknown error... shutting down");
1410                                 exit(-1);
1411                 }
1412         }
1413
1414         return ERROR_OK;
1415 }
1416
1417 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1418 {
1419         target_t *target = get_current_target(cmd_ctx);
1420         enum target_reset_mode reset_mode = RESET_RUN;
1421
1422         DEBUG("-");
1423
1424         if (argc >= 1)
1425         {
1426                 if (strcmp("run", args[0]) == 0)
1427                         reset_mode = RESET_RUN;
1428                 else if (strcmp("halt", args[0]) == 0)
1429                         reset_mode = RESET_HALT;
1430                 else if (strcmp("init", args[0]) == 0)
1431                         reset_mode = RESET_INIT;
1432                 else if (strcmp("run_and_halt", args[0]) == 0)
1433                 {
1434                         reset_mode = RESET_RUN_AND_HALT;
1435                         if (argc >= 2)
1436                         {
1437                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1438                         }
1439                 }
1440                 else if (strcmp("run_and_init", args[0]) == 0)
1441                 {
1442                         reset_mode = RESET_RUN_AND_INIT;
1443                         if (argc >= 2)
1444                         {
1445                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1446                         }
1447                 }
1448                 else
1449                 {
1450                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1451                         return ERROR_OK;
1452                 }
1453                 target->reset_mode = reset_mode;
1454         }
1455
1456         target_process_reset(cmd_ctx);
1457
1458         return ERROR_OK;
1459 }
1460
1461 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1462 {
1463         int retval;
1464         target_t *target = get_current_target(cmd_ctx);
1465
1466         DEBUG("-");
1467
1468         if (argc == 0)
1469                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1470         else if (argc == 1)
1471                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1472         else
1473         {
1474                 command_print(cmd_ctx, "usage: resume [address]");
1475                 return ERROR_OK;
1476         }
1477
1478         if (retval != ERROR_OK)
1479         {
1480                 switch (retval)
1481                 {
1482                         case ERROR_TARGET_NOT_HALTED:
1483                                 command_print(cmd_ctx, "target not halted");
1484                                 break;
1485                         default:
1486                                 command_print(cmd_ctx, "unknown error... shutting down");
1487                                 exit(-1);
1488                 }
1489         }
1490
1491         return ERROR_OK;
1492 }
1493
1494 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1495 {
1496         target_t *target = get_current_target(cmd_ctx);
1497
1498         DEBUG("-");
1499
1500         if (argc == 0)
1501                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1502
1503         if (argc == 1)
1504                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1505
1506         return ERROR_OK;
1507 }
1508
1509 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1510 {
1511         int count = 1;
1512         int size = 4;
1513         u32 address = 0;
1514         int i;
1515
1516         char output[128];
1517         int output_len;
1518
1519         int retval;
1520
1521         u8 *buffer;
1522         target_t *target = get_current_target(cmd_ctx);
1523
1524         if (argc < 1)
1525                 return ERROR_OK;
1526
1527         if (argc == 2)
1528                 count = strtoul(args[1], NULL, 0);
1529
1530         address = strtoul(args[0], NULL, 0);
1531
1532
1533         switch (cmd[2])
1534         {
1535                 case 'w':
1536                         size = 4;
1537                         break;
1538                 case 'h':
1539                         size = 2;
1540                         break;
1541                 case 'b':
1542                         size = 1;
1543                         break;
1544                 default:
1545                         return ERROR_OK;
1546         }
1547
1548         buffer = calloc(count, size);
1549         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1550         {
1551                 switch (retval)
1552                 {
1553                         case ERROR_TARGET_UNALIGNED_ACCESS:
1554                                 command_print(cmd_ctx, "error: address not aligned");
1555                                 break;
1556                         case ERROR_TARGET_NOT_HALTED:
1557                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1558                                 break;
1559                         case ERROR_TARGET_DATA_ABORT:
1560                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1561                                 break;
1562                         default:
1563                                 command_print(cmd_ctx, "error: unknown error");
1564                                 break;
1565                 }
1566                 return ERROR_OK;
1567         }
1568
1569         output_len = 0;
1570
1571         for (i = 0; i < count; i++)
1572         {
1573                 if (i%8 == 0)
1574                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1575
1576                 switch (size)
1577                 {
1578                         case 4:
1579                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1580                                 break;
1581                         case 2:
1582                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1583                                 break;
1584                         case 1:
1585                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1586                                 break;
1587                 }
1588
1589                 if ((i%8 == 7) || (i == count - 1))
1590                 {
1591                         command_print(cmd_ctx, output);
1592                         output_len = 0;
1593                 }
1594         }
1595
1596         free(buffer);
1597
1598         return ERROR_OK;
1599 }
1600
1601 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1602 {
1603         u32 address = 0;
1604         u32 value = 0;
1605         int retval;
1606         target_t *target = get_current_target(cmd_ctx);
1607         u8 value_buf[4];
1608
1609         if (argc < 2)
1610                 return ERROR_OK;
1611
1612         address = strtoul(args[0], NULL, 0);
1613         value = strtoul(args[1], NULL, 0);
1614
1615         switch (cmd[2])
1616         {
1617                 case 'w':
1618                         target_buffer_set_u32(target, value_buf, value);
1619                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1620                         break;
1621                 case 'h':
1622                         target_buffer_set_u16(target, value_buf, value);
1623                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1624                         break;
1625                 case 'b':
1626                         value_buf[0] = value;
1627                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1628                         break;
1629                 default:
1630                         return ERROR_OK;
1631         }
1632
1633         switch (retval)
1634         {
1635                 case ERROR_TARGET_UNALIGNED_ACCESS:
1636                         command_print(cmd_ctx, "error: address not aligned");
1637                         break;
1638                 case ERROR_TARGET_DATA_ABORT:
1639                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1640                         break;
1641                 case ERROR_TARGET_NOT_HALTED:
1642                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1643                         break;
1644                 case ERROR_OK:
1645                         break;
1646                 default:
1647                         command_print(cmd_ctx, "error: unknown error");
1648                         break;
1649         }
1650
1651         return ERROR_OK;
1652
1653 }
1654
1655 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1656 {
1657         u8 *buffer;
1658         u32 buf_cnt;
1659         u32 image_size;
1660         int i;
1661         int retval;
1662
1663         image_t image;
1664
1665         duration_t duration;
1666         char *duration_text;
1667
1668         target_t *target = get_current_target(cmd_ctx);
1669
1670         if (argc < 1)
1671         {
1672                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
1673                 return ERROR_OK;
1674         }
1675
1676         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1677         if (argc >= 2)
1678         {
1679                 image.base_address_set = 1;
1680                 image.base_address = strtoul(args[1], NULL, 0);
1681         }
1682         else
1683         {
1684                 image.base_address_set = 0;
1685         }
1686
1687         image.start_address_set = 0;
1688
1689         duration_start_measure(&duration);
1690
1691         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1692         {
1693                 command_print(cmd_ctx, "load_image error: %s", image.error_str);
1694                 return ERROR_OK;
1695         }
1696
1697         image_size = 0x0;
1698         for (i = 0; i < image.num_sections; i++)
1699         {
1700                 buffer = malloc(image.sections[i].size);
1701                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1702                 {
1703                         ERROR("image_read_section failed with error code: %i", retval);
1704                         command_print(cmd_ctx, "image reading failed, download aborted");
1705                         free(buffer);
1706                         image_close(&image);
1707                         return ERROR_OK;
1708                 }
1709                 target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
1710                 image_size += buf_cnt;
1711                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
1712
1713                 free(buffer);
1714         }
1715
1716         duration_stop_measure(&duration, &duration_text);
1717         command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1718         free(duration_text);
1719
1720         image_close(&image);
1721
1722         return ERROR_OK;
1723
1724 }
1725
1726 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1727 {
1728         fileio_t fileio;
1729
1730         u32 address;
1731         u32 size;
1732         u8 buffer[560];
1733
1734         duration_t duration;
1735         char *duration_text;
1736
1737         target_t *target = get_current_target(cmd_ctx);
1738
1739         if (argc != 3)
1740         {
1741                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1742                 return ERROR_OK;
1743         }
1744
1745         address = strtoul(args[1], NULL, 0);
1746         size = strtoul(args[2], NULL, 0);
1747
1748         if ((address & 3) || (size & 3))
1749         {
1750                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1751                 return ERROR_OK;
1752         }
1753
1754         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
1755         {
1756                 command_print(cmd_ctx, "dump_image error: %s", fileio.error_str);
1757                 return ERROR_OK;
1758         }
1759
1760         duration_start_measure(&duration);
1761
1762         while (size > 0)
1763         {
1764                 u32 size_written;
1765                 u32 this_run_size = (size > 560) ? 560 : size;
1766
1767                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1768                 fileio_write(&fileio, this_run_size, buffer, &size_written);
1769
1770                 size -= this_run_size;
1771                 address += this_run_size;
1772         }
1773
1774         fileio_close(&fileio);
1775
1776         duration_stop_measure(&duration, &duration_text);
1777         command_print(cmd_ctx, "dumped %lli byte in %s", fileio.size, duration_text);
1778         free(duration_text);
1779
1780         return ERROR_OK;
1781
1782 }
1783
1784 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1785 {
1786         int retval;
1787         target_t *target = get_current_target(cmd_ctx);
1788
1789         if (argc == 0)
1790         {
1791                 breakpoint_t *breakpoint = target->breakpoints;
1792
1793                 while (breakpoint)
1794                 {
1795                         if (breakpoint->type == BKPT_SOFT)
1796                         {
1797                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
1798                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1799                                 free(buf);
1800                         }
1801                         else
1802                         {
1803                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1804                         }
1805                         breakpoint = breakpoint->next;
1806                 }
1807         }
1808         else if (argc >= 2)
1809         {
1810                 int hw = BKPT_SOFT;
1811                 u32 length = 0;
1812
1813                 length = strtoul(args[1], NULL, 0);
1814
1815                 if (argc >= 3)
1816                         if (strcmp(args[2], "hw") == 0)
1817                                 hw = BKPT_HARD;
1818
1819                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1820                 {
1821                         switch (retval)
1822                         {
1823                                 case ERROR_TARGET_NOT_HALTED:
1824                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1825                                         break;
1826                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1827                                         command_print(cmd_ctx, "no more breakpoints available");
1828                                         break;
1829                                 default:
1830                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1831                                         break;
1832                         }
1833                 }
1834                 else
1835                 {
1836                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
1837                 }
1838         }
1839         else
1840         {
1841                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
1842         }
1843
1844         return ERROR_OK;
1845 }
1846
1847 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1848 {
1849         target_t *target = get_current_target(cmd_ctx);
1850
1851         if (argc > 0)
1852                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1853
1854         return ERROR_OK;
1855 }
1856
1857 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1858 {
1859         target_t *target = get_current_target(cmd_ctx);
1860
1861         if (argc == 0)
1862         {
1863                 watchpoint_t *watchpoint = target->watchpoints;
1864
1865                 while (watchpoint)
1866                 {
1867                         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);
1868                         watchpoint = watchpoint->next;
1869                 }
1870         }
1871         else if (argc >= 2)
1872         {
1873                 enum watchpoint_rw type = WPT_ACCESS;
1874                 u32 data_value = 0x0;
1875                 u32 data_mask = 0xffffffff;
1876
1877                 if (argc >= 3)
1878                 {
1879                         switch(args[2][0])
1880                         {
1881                                 case 'r':
1882                                         type = WPT_READ;
1883                                         break;
1884                                 case 'w':
1885                                         type = WPT_WRITE;
1886                                         break;
1887                                 case 'a':
1888                                         type = WPT_ACCESS;
1889                                         break;
1890                                 default:
1891                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1892                                         return ERROR_OK;
1893                         }
1894                 }
1895                 if (argc >= 4)
1896                 {
1897                         data_value = strtoul(args[3], NULL, 0);
1898                 }
1899                 if (argc >= 5)
1900                 {
1901                         data_mask = strtoul(args[4], NULL, 0);
1902                 }
1903                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1904         }
1905         else
1906         {
1907                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1908         }
1909
1910         return ERROR_OK;
1911 }
1912
1913 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1914 {
1915         target_t *target = get_current_target(cmd_ctx);
1916
1917         if (argc > 0)
1918                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1919
1920         return ERROR_OK;
1921 }
1922