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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2009 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   Copyright (C) 2008 by Spencer Oliver                                  *
  12  *   spen@spen-soft.co.uk                                                  *
  13  *                                                                         *
  14  *   Copyright (C) 2008 by Rick Altherr                                    *
  15  *   kc8apf@kc8apf.net>                                                    *
  16  *                                                                         *
  17  *   This program is free software; you can redistribute it and/or modify  *
  18  *   it under the terms of the GNU General Public License as published by  *
  19  *   the Free Software Foundation; either version 2 of the License, or     *
  20  *   (at your option) any later version.                                   *
  21  *                                                                         *
  22  *   This program is distributed in the hope that it will be useful,       *
  23  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  24  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  25  *   GNU General Public License for more details.                          *
  26  *                                                                         *
  27  *   You should have received a copy of the GNU General Public License     *
  28  *   along with this program; if not, write to the                         *
  29  *   Free Software Foundation, Inc.,                                       *
  30  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  31  ***************************************************************************/
  32 #ifdef HAVE_CONFIG_H
  33 #include "config.h"
  34 #endif
  35
  36 #include "target.h"
  37 #include "target_type.h"
  38 #include "target_request.h"
  39 #include "time_support.h"
  40 #include "register.h"
  41 #include "trace.h"
  42 #include "image.h"
  43 #include "jtag.h"
  44
  45
  46 static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  47
  48 static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50 static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  51 static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 static int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 static int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  67 static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70
  71 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  72 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  73 static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  74
  75 static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
  76 static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
  77
  78 /* targets */
  79 extern target_type_t arm7tdmi_target;
  80 extern target_type_t arm720t_target;
  81 extern target_type_t arm9tdmi_target;
  82 extern target_type_t arm920t_target;
  83 extern target_type_t arm966e_target;
  84 extern target_type_t arm926ejs_target;
  85 extern target_type_t fa526_target;
  86 extern target_type_t feroceon_target;
  87 extern target_type_t dragonite_target;
  88 extern target_type_t xscale_target;
  89 extern target_type_t cortexm3_target;
  90 extern target_type_t cortexa8_target;
  91 extern target_type_t arm11_target;
  92 extern target_type_t mips_m4k_target;
  93 extern target_type_t avr_target;
  94
  95 target_type_t *target_types[] =
  96 {
  97         &arm7tdmi_target,
  98         &arm9tdmi_target,
  99         &arm920t_target,
 100         &arm720t_target,
 101         &arm966e_target,
 102         &arm926ejs_target,
 103         &fa526_target,
 104         &feroceon_target,
 105         &dragonite_target,
 106         &xscale_target,
 107         &cortexm3_target,
 108         &cortexa8_target,
 109         &arm11_target,
 110         &mips_m4k_target,
 111         &avr_target,
 112         NULL,
 113 };
 114
 115 target_t *all_targets = NULL;
 116 target_event_callback_t *target_event_callbacks = NULL;
 117 target_timer_callback_t *target_timer_callbacks = NULL;
 118
 119 const Jim_Nvp nvp_assert[] = {
 120         { .name = "assert", NVP_ASSERT },
 121         { .name = "deassert", NVP_DEASSERT },
 122         { .name = "T", NVP_ASSERT },
 123         { .name = "F", NVP_DEASSERT },
 124         { .name = "t", NVP_ASSERT },
 125         { .name = "f", NVP_DEASSERT },
 126         { .name = NULL, .value = -1 }
 127 };
 128
 129 const Jim_Nvp nvp_error_target[] = {
 130         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 131         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 132         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 133         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 134         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 135         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 136         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 137         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 138         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 139         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 140         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 141         { .value = -1, .name = NULL }
 142 };
 143
 144 const char *target_strerror_safe(int err)
 145 {
 146         const Jim_Nvp *n;
 147
 148         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 149         if (n->name == NULL) {
 150                 return "unknown";
 151         } else {
 152                 return n->name;
 153         }
 154 }
 155
 156 static const Jim_Nvp nvp_target_event[] = {
 157         { .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
 158         { .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
 159
 160         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 161         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 162         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 163         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 164         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 165
 166         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 167         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 168
 169         /* historical name */
 170
 171         { .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
 172
 173         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 174         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 175         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 176         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 177         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 178         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 179         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 180         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 181         { .value = TARGET_EVENT_RESET_INIT , .name = "reset-init" },
 182         { .value = TARGET_EVENT_RESET_END, .name = "reset-end" },
 183
 184         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 185         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 186
 187         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 188         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 189
 190         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 191         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 192
 193         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 194         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 195
 196         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 197         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 198
 199         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 200         { .value = TARGET_EVENT_RESUMED     , .name = "resume-ok" },
 201         { .value = TARGET_EVENT_RESUME_END  , .name = "resume-end" },
 202
 203         { .name = NULL, .value = -1 }
 204 };
 205
 206 const Jim_Nvp nvp_target_state[] = {
 207         { .name = "unknown", .value = TARGET_UNKNOWN },
 208         { .name = "running", .value = TARGET_RUNNING },
 209         { .name = "halted",  .value = TARGET_HALTED },
 210         { .name = "reset",   .value = TARGET_RESET },
 211         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 212         { .name = NULL, .value = -1 },
 213 };
 214
 215 const Jim_Nvp nvp_target_debug_reason [] = {
 216         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 217         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 218         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 219         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 220         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 221         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 222         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 223         { .name = NULL, .value = -1 },
 224 };
 225
 226 const Jim_Nvp nvp_target_endian[] = {
 227         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 228         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 229         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 230         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 231         { .name = NULL,     .value = -1 },
 232 };
 233
 234 const Jim_Nvp nvp_reset_modes[] = {
 235         { .name = "unknown", .value = RESET_UNKNOWN },
 236         { .name = "run"    , .value = RESET_RUN },
 237         { .name = "halt"   , .value = RESET_HALT },
 238         { .name = "init"   , .value = RESET_INIT },
 239         { .name = NULL     , .value = -1 },
 240 };
 241
 242 const char *
 243 target_state_name( target_t *t )
 244 {
 245         const char *cp;
 246         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 247         if( !cp ){
 248                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 249                 cp = "(*BUG*unknown*BUG*)";
 250         }
 251         return cp;
 252 }
 253
 254 /* determine the number of the new target */
 255 static int new_target_number(void)
 256 {
 257         target_t *t;
 258         int x;
 259
 260         /* number is 0 based */
 261         x = -1;
 262         t = all_targets;
 263         while (t) {
 264                 if (x < t->target_number) {
 265                         x = t->target_number;
 266                 }
 267                 t = t->next;
 268         }
 269         return x + 1;
 270 }
 271
 272 /* read a uint32_t from a buffer in target memory endianness */
 273 uint32_t target_buffer_get_u32(target_t *target, const uint8_t *buffer)
 274 {
 275         if (target->endianness == TARGET_LITTLE_ENDIAN)
 276                 return le_to_h_u32(buffer);
 277         else
 278                 return be_to_h_u32(buffer);
 279 }
 280
 281 /* read a uint16_t from a buffer in target memory endianness */
 282 uint16_t target_buffer_get_u16(target_t *target, const uint8_t *buffer)
 283 {
 284         if (target->endianness == TARGET_LITTLE_ENDIAN)
 285                 return le_to_h_u16(buffer);
 286         else
 287                 return be_to_h_u16(buffer);
 288 }
 289
 290 /* read a uint8_t from a buffer in target memory endianness */
 291 uint8_t target_buffer_get_u8(target_t *target, const uint8_t *buffer)
 292 {
 293         return *buffer & 0x0ff;
 294 }
 295
 296 /* write a uint32_t to a buffer in target memory endianness */
 297 void target_buffer_set_u32(target_t *target, uint8_t *buffer, uint32_t value)
 298 {
 299         if (target->endianness == TARGET_LITTLE_ENDIAN)
 300                 h_u32_to_le(buffer, value);
 301         else
 302                 h_u32_to_be(buffer, value);
 303 }
 304
 305 /* write a uint16_t to a buffer in target memory endianness */
 306 void target_buffer_set_u16(target_t *target, uint8_t *buffer, uint16_t value)
 307 {
 308         if (target->endianness == TARGET_LITTLE_ENDIAN)
 309                 h_u16_to_le(buffer, value);
 310         else
 311                 h_u16_to_be(buffer, value);
 312 }
 313
 314 /* write a uint8_t to a buffer in target memory endianness */
 315 void target_buffer_set_u8(target_t *target, uint8_t *buffer, uint8_t value)
 316 {
 317         *buffer = value;
 318 }
 319
 320 /* return a pointer to a configured target; id is name or number */
 321 target_t *get_target(const char *id)
 322 {
 323         target_t *target;
 324
 325         /* try as tcltarget name */
 326         for (target = all_targets; target; target = target->next) {
 327                 if (target->cmd_name == NULL)
 328                         continue;
 329                 if (strcmp(id, target->cmd_name) == 0)
 330                         return target;
 331         }
 332
 333         /* It's OK to remove this fallback sometime after August 2010 or so */
 334
 335         /* no match, try as number */
 336         unsigned num;
 337         if (parse_uint(id, &num) != ERROR_OK)
 338                 return NULL;
 339
 340         for (target = all_targets; target; target = target->next) {
 341                 if (target->target_number == (int)num) {
 342                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 343                                         target->cmd_name, num);
 344                         return target;
 345                 }
 346         }
 347
 348         return NULL;
 349 }
 350
 351 /* returns a pointer to the n-th configured target */
 352 static target_t *get_target_by_num(int num)
 353 {
 354         target_t *target = all_targets;
 355
 356         while (target) {
 357                 if (target->target_number == num) {
 358                         return target;
 359                 }
 360                 target = target->next;
 361         }
 362
 363         return NULL;
 364 }
 365
 366 target_t* get_current_target(command_context_t *cmd_ctx)
 367 {
 368         target_t *target = get_target_by_num(cmd_ctx->current_target);
 369
 370         if (target == NULL)
 371         {
 372                 LOG_ERROR("BUG: current_target out of bounds");
 373                 exit(-1);
 374         }
 375
 376         return target;
 377 }
 378
 379 int target_poll(struct target_s *target)
 380 {
 381         int retval;
 382
 383         /* We can't poll until after examine */
 384         if (!target_was_examined(target))
 385         {
 386                 /* Fail silently lest we pollute the log */
 387                 return ERROR_FAIL;
 388         }
 389
 390         retval = target->type->poll(target);
 391         if (retval != ERROR_OK)
 392                 return retval;
 393
 394         if (target->halt_issued)
 395         {
 396                 if (target->state == TARGET_HALTED)
 397                 {
 398                         target->halt_issued = false;
 399                 } else
 400                 {
 401                         long long t = timeval_ms() - target->halt_issued_time;
 402                         if (t>1000)
 403                         {
 404                                 target->halt_issued = false;
 405                                 LOG_INFO("Halt timed out, wake up GDB.");
 406                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 407                         }
 408                 }
 409         }
 410
 411         return ERROR_OK;
 412 }
 413
 414 int target_halt(struct target_s *target)
 415 {
 416         int retval;
 417         /* We can't poll until after examine */
 418         if (!target_was_examined(target))
 419         {
 420                 LOG_ERROR("Target not examined yet");
 421                 return ERROR_FAIL;
 422         }
 423
 424         retval = target->type->halt(target);
 425         if (retval != ERROR_OK)
 426                 return retval;
 427
 428         target->halt_issued = true;
 429         target->halt_issued_time = timeval_ms();
 430
 431         return ERROR_OK;
 432 }
 433
 434 int target_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 435 {
 436         int retval;
 437
 438         /* We can't poll until after examine */
 439         if (!target_was_examined(target))
 440         {
 441                 LOG_ERROR("Target not examined yet");
 442                 return ERROR_FAIL;
 443         }
 444
 445         /* note that resume *must* be asynchronous. The CPU can halt before we poll. The CPU can
 446          * even halt at the current PC as a result of a software breakpoint being inserted by (a bug?)
 447          * the application.
 448          */
 449         if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
 450                 return retval;
 451
 452         return retval;
 453 }
 454
 455 int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
 456 {
 457         char buf[100];
 458         int retval;
 459         Jim_Nvp *n;
 460         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 461         if (n->name == NULL) {
 462                 LOG_ERROR("invalid reset mode");
 463                 return ERROR_FAIL;
 464         }
 465
 466         /* disable polling during reset to make reset event scripts
 467          * more predictable, i.e. dr/irscan & pathmove in events will
 468          * not have JTAG operations injected into the middle of a sequence.
 469          */
 470         bool save_poll = jtag_poll_get_enabled();
 471
 472         jtag_poll_set_enabled(false);
 473
 474         sprintf(buf, "ocd_process_reset %s", n->name);
 475         retval = Jim_Eval(interp, buf);
 476
 477         jtag_poll_set_enabled(save_poll);
 478
 479         if (retval != JIM_OK) {
 480                 Jim_PrintErrorMessage(interp);
 481                 return ERROR_FAIL;
 482         }
 483
 484         /* We want any events to be processed before the prompt */
 485         retval = target_call_timer_callbacks_now();
 486
 487         return retval;
 488 }
 489
 490 static int default_virt2phys(struct target_s *target, uint32_t virtual, uint32_t *physical)
 491 {
 492         *physical = virtual;
 493         return ERROR_OK;
 494 }
 495
 496 static int default_mmu(struct target_s *target, int *enabled)
 497 {
 498         *enabled = 0;
 499         return ERROR_OK;
 500 }
 501
 502 static int default_examine(struct target_s *target)
 503 {
 504         target_set_examined(target);
 505         return ERROR_OK;
 506 }
 507
 508 int target_examine_one(struct target_s *target)
 509 {
 510         return target->type->examine(target);
 511 }
 512
 513 static int jtag_enable_callback(enum jtag_event event, void *priv)
 514 {
 515         target_t *target = priv;
 516
 517         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 518                 return ERROR_OK;
 519
 520         jtag_unregister_event_callback(jtag_enable_callback, target);
 521         return target_examine_one(target);
 522 }
 523
 524
 525 /* Targets that correctly implement init + examine, i.e.
 526  * no communication with target during init:
 527  *
 528  * XScale
 529  */
 530 int target_examine(void)
 531 {
 532         int retval = ERROR_OK;
 533         target_t *target;
 534
 535         for (target = all_targets; target; target = target->next)
 536         {
 537                 /* defer examination, but don't skip it */
 538                 if (!target->tap->enabled) {
 539                         jtag_register_event_callback(jtag_enable_callback,
 540                                         target);
 541                         continue;
 542                 }
 543                 if ((retval = target_examine_one(target)) != ERROR_OK)
 544                         return retval;
 545         }
 546         return retval;
 547 }
 548 const char *target_get_name(struct target_s *target)
 549 {
 550         return target->type->name;
 551 }
 552
 553 static int target_write_memory_imp(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 554 {
 555         if (!target_was_examined(target))
 556         {
 557                 LOG_ERROR("Target not examined yet");
 558                 return ERROR_FAIL;
 559         }
 560         return target->type->write_memory_imp(target, address, size, count, buffer);
 561 }
 562
 563 static int target_read_memory_imp(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 564 {
 565         if (!target_was_examined(target))
 566         {
 567                 LOG_ERROR("Target not examined yet");
 568                 return ERROR_FAIL;
 569         }
 570         return target->type->read_memory_imp(target, address, size, count, buffer);
 571 }
 572
 573 static int target_soft_reset_halt_imp(struct target_s *target)
 574 {
 575         if (!target_was_examined(target))
 576         {
 577                 LOG_ERROR("Target not examined yet");
 578                 return ERROR_FAIL;
 579         }
 580         if (!target->type->soft_reset_halt_imp) {
 581                 LOG_ERROR("Target %s does not support soft_reset_halt",
 582                                 target->cmd_name);
 583                 return ERROR_FAIL;
 584         }
 585         return target->type->soft_reset_halt_imp(target);
 586 }
 587
 588 static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info)
 589 {
 590         if (!target_was_examined(target))
 591         {
 592                 LOG_ERROR("Target not examined yet");
 593                 return ERROR_FAIL;
 594         }
 595         return target->type->run_algorithm_imp(target, num_mem_params, mem_params, num_reg_params, reg_param, entry_point, exit_point, timeout_ms, arch_info);
 596 }
 597
 598 int target_read_memory(struct target_s *target,
 599                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 600 {
 601         return target->type->read_memory(target, address, size, count, buffer);
 602 }
 603
 604 int target_write_memory(struct target_s *target,
 605                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 606 {
 607         return target->type->write_memory(target, address, size, count, buffer);
 608 }
 609 int target_bulk_write_memory(struct target_s *target,
 610                 uint32_t address, uint32_t count, uint8_t *buffer)
 611 {
 612         return target->type->bulk_write_memory(target, address, count, buffer);
 613 }
 614
 615 int target_add_breakpoint(struct target_s *target,
 616                 struct breakpoint_s *breakpoint)
 617 {
 618         return target->type->add_breakpoint(target, breakpoint);
 619 }
 620 int target_remove_breakpoint(struct target_s *target,
 621                 struct breakpoint_s *breakpoint)
 622 {
 623         return target->type->remove_breakpoint(target, breakpoint);
 624 }
 625
 626 int target_add_watchpoint(struct target_s *target,
 627                 struct watchpoint_s *watchpoint)
 628 {
 629         return target->type->add_watchpoint(target, watchpoint);
 630 }
 631 int target_remove_watchpoint(struct target_s *target,
 632                 struct watchpoint_s *watchpoint)
 633 {
 634         return target->type->remove_watchpoint(target, watchpoint);
 635 }
 636
 637 int target_get_gdb_reg_list(struct target_s *target,
 638                 struct reg_s **reg_list[], int *reg_list_size)
 639 {
 640         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
 641 }
 642 int target_step(struct target_s *target,
 643                 int current, uint32_t address, int handle_breakpoints)
 644 {
 645         return target->type->step(target, current, address, handle_breakpoints);
 646 }
 647
 648
 649 int target_run_algorithm(struct target_s *target,
 650                 int num_mem_params, mem_param_t *mem_params,
 651                 int num_reg_params, reg_param_t *reg_param,
 652                 uint32_t entry_point, uint32_t exit_point,
 653                 int timeout_ms, void *arch_info)
 654 {
 655         return target->type->run_algorithm(target,
 656                         num_mem_params, mem_params, num_reg_params, reg_param,
 657                         entry_point, exit_point, timeout_ms, arch_info);
 658 }
 659
 660 /// @returns @c true if the target has been examined.
 661 bool target_was_examined(struct target_s *target)
 662 {
 663         return target->type->examined;
 664 }
 665 /// Sets the @c examined flag for the given target.
 666 void target_set_examined(struct target_s *target)
 667 {
 668         target->type->examined = true;
 669 }
 670 // Reset the @c examined flag for the given target.
 671 void target_reset_examined(struct target_s *target)
 672 {
 673         target->type->examined = false;
 674 }
 675
 676
 677 int target_init(struct command_context_s *cmd_ctx)
 678 {
 679         target_t *target = all_targets;
 680         int retval;
 681
 682         while (target)
 683         {
 684                 target_reset_examined(target);
 685                 if (target->type->examine == NULL)
 686                 {
 687                         target->type->examine = default_examine;
 688                 }
 689
 690                 if ((retval = target->type->init_target(cmd_ctx, target)) != ERROR_OK)
 691                 {
 692                         LOG_ERROR("target '%s' init failed", target_get_name(target));
 693                         return retval;
 694                 }
 695
 696                 /* Set up default functions if none are provided by target */
 697                 if (target->type->virt2phys == NULL)
 698                 {
 699                         target->type->virt2phys = default_virt2phys;
 700                 }
 701                 /* a non-invasive way(in terms of patches) to add some code that
 702                  * runs before the type->write/read_memory implementation
 703                  */
 704                 target->type->write_memory_imp = target->type->write_memory;
 705                 target->type->write_memory = target_write_memory_imp;
 706                 target->type->read_memory_imp = target->type->read_memory;
 707                 target->type->read_memory = target_read_memory_imp;
 708                 target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
 709                 target->type->soft_reset_halt = target_soft_reset_halt_imp;
 710                 target->type->run_algorithm_imp = target->type->run_algorithm;
 711                 target->type->run_algorithm = target_run_algorithm_imp;
 712
 713                 if (target->type->mmu == NULL)
 714                 {
 715                         target->type->mmu = default_mmu;
 716                 }
 717                 target = target->next;
 718         }
 719
 720         if (all_targets)
 721         {
 722                 if ((retval = target_register_user_commands(cmd_ctx)) != ERROR_OK)
 723                         return retval;
 724                 if ((retval = target_register_timer_callback(handle_target, 100, 1, NULL)) != ERROR_OK)
 725                         return retval;
 726         }
 727
 728         return ERROR_OK;
 729 }
 730
 731 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 732 {
 733         target_event_callback_t **callbacks_p = &target_event_callbacks;
 734
 735         if (callback == NULL)
 736         {
 737                 return ERROR_INVALID_ARGUMENTS;
 738         }
 739
 740         if (*callbacks_p)
 741         {
 742                 while ((*callbacks_p)->next)
 743                         callbacks_p = &((*callbacks_p)->next);
 744                 callbacks_p = &((*callbacks_p)->next);
 745         }
 746
 747         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 748         (*callbacks_p)->callback = callback;
 749         (*callbacks_p)->priv = priv;
 750         (*callbacks_p)->next = NULL;
 751
 752         return ERROR_OK;
 753 }
 754
 755 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 756 {
 757         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 758         struct timeval now;
 759
 760         if (callback == NULL)
 761         {
 762                 return ERROR_INVALID_ARGUMENTS;
 763         }
 764
 765         if (*callbacks_p)
 766         {
 767                 while ((*callbacks_p)->next)
 768                         callbacks_p = &((*callbacks_p)->next);
 769                 callbacks_p = &((*callbacks_p)->next);
 770         }
 771
 772         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 773         (*callbacks_p)->callback = callback;
 774         (*callbacks_p)->periodic = periodic;
 775         (*callbacks_p)->time_ms = time_ms;
 776
 777         gettimeofday(&now, NULL);
 778         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 779         time_ms -= (time_ms % 1000);
 780         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 781         if ((*callbacks_p)->when.tv_usec > 1000000)
 782         {
 783                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 784                 (*callbacks_p)->when.tv_sec += 1;
 785         }
 786
 787         (*callbacks_p)->priv = priv;
 788         (*callbacks_p)->next = NULL;
 789
 790         return ERROR_OK;
 791 }
 792
 793 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 794 {
 795         target_event_callback_t **p = &target_event_callbacks;
 796         target_event_callback_t *c = target_event_callbacks;
 797
 798         if (callback == NULL)
 799         {
 800                 return ERROR_INVALID_ARGUMENTS;
 801         }
 802
 803         while (c)
 804         {
 805                 target_event_callback_t *next = c->next;
 806                 if ((c->callback == callback) && (c->priv == priv))
 807                 {
 808                         *p = next;
 809                         free(c);
 810                         return ERROR_OK;
 811                 }
 812                 else
 813                         p = &(c->next);
 814                 c = next;
 815         }
 816
 817         return ERROR_OK;
 818 }
 819
 820 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 821 {
 822         target_timer_callback_t **p = &target_timer_callbacks;
 823         target_timer_callback_t *c = target_timer_callbacks;
 824
 825         if (callback == NULL)
 826         {
 827                 return ERROR_INVALID_ARGUMENTS;
 828         }
 829
 830         while (c)
 831         {
 832                 target_timer_callback_t *next = c->next;
 833                 if ((c->callback == callback) && (c->priv == priv))
 834                 {
 835                         *p = next;
 836                         free(c);
 837                         return ERROR_OK;
 838                 }
 839                 else
 840                         p = &(c->next);
 841                 c = next;
 842         }
 843
 844         return ERROR_OK;
 845 }
 846
 847 int target_call_event_callbacks(target_t *target, enum target_event event)
 848 {
 849         target_event_callback_t *callback = target_event_callbacks;
 850         target_event_callback_t *next_callback;
 851
 852         if (event == TARGET_EVENT_HALTED)
 853         {
 854                 /* execute early halted first */
 855                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 856         }
 857
 858         LOG_DEBUG("target event %i (%s)",
 859                           event,
 860                           Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
 861
 862         target_handle_event(target, event);
 863
 864         while (callback)
 865         {
 866                 next_callback = callback->next;
 867                 callback->callback(target, event, callback->priv);
 868                 callback = next_callback;
 869         }
 870
 871         return ERROR_OK;
 872 }
 873
 874 static int target_timer_callback_periodic_restart(
 875                 target_timer_callback_t *cb, struct timeval *now)
 876 {
 877         int time_ms = cb->time_ms;
 878         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
 879         time_ms -= (time_ms % 1000);
 880         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
 881         if (cb->when.tv_usec > 1000000)
 882         {
 883                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
 884                 cb->when.tv_sec += 1;
 885         }
 886         return ERROR_OK;
 887 }
 888
 889 static int target_call_timer_callback(target_timer_callback_t *cb,
 890                 struct timeval *now)
 891 {
 892         cb->callback(cb->priv);
 893
 894         if (cb->periodic)
 895                 return target_timer_callback_periodic_restart(cb, now);
 896
 897         return target_unregister_timer_callback(cb->callback, cb->priv);
 898 }
 899
 900 static int target_call_timer_callbacks_check_time(int checktime)
 901 {
 902         keep_alive();
 903
 904         struct timeval now;
 905         gettimeofday(&now, NULL);
 906
 907         target_timer_callback_t *callback = target_timer_callbacks;
 908         while (callback)
 909         {
 910                 // cleaning up may unregister and free this callback
 911                 target_timer_callback_t *next_callback = callback->next;
 912
 913                 bool call_it = callback->callback &&
 914                         ((!checktime && callback->periodic) ||
 915                           now.tv_sec > callback->when.tv_sec ||
 916                          (now.tv_sec == callback->when.tv_sec &&
 917                           now.tv_usec >= callback->when.tv_usec));
 918
 919                 if (call_it)
 920                 {
 921                         int retval = target_call_timer_callback(callback, &now);
 922                         if (retval != ERROR_OK)
 923                                 return retval;
 924                 }
 925
 926                 callback = next_callback;
 927         }
 928
 929         return ERROR_OK;
 930 }
 931
 932 int target_call_timer_callbacks(void)
 933 {
 934         return target_call_timer_callbacks_check_time(1);
 935 }
 936
 937 /* invoke periodic callbacks immediately */
 938 int target_call_timer_callbacks_now(void)
 939 {
 940         return target_call_timer_callbacks_check_time(0);
 941 }
 942
 943 int target_alloc_working_area(struct target_s *target, uint32_t size, working_area_t **area)
 944 {
 945         working_area_t *c = target->working_areas;
 946         working_area_t *new_wa = NULL;
 947
 948         /* Reevaluate working area address based on MMU state*/
 949         if (target->working_areas == NULL)
 950         {
 951                 int retval;
 952                 int enabled;
 953                 retval = target->type->mmu(target, &enabled);
 954                 if (retval != ERROR_OK)
 955                 {
 956                         return retval;
 957                 }
 958                 if (enabled)
 959                 {
 960                         target->working_area = target->working_area_virt;
 961                 }
 962                 else
 963                 {
 964                         target->working_area = target->working_area_phys;
 965                 }
 966         }
 967
 968         /* only allocate multiples of 4 byte */
 969         if (size % 4)
 970         {
 971                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes (0x%08x), padding", ((unsigned)(size)));
 972                 size = (size + 3) & (~3);
 973         }
 974
 975         /* see if there's already a matching working area */
 976         while (c)
 977         {
 978                 if ((c->free) && (c->size == size))
 979                 {
 980                         new_wa = c;
 981                         break;
 982                 }
 983                 c = c->next;
 984         }
 985
 986         /* if not, allocate a new one */
 987         if (!new_wa)
 988         {
 989                 working_area_t **p = &target->working_areas;
 990                 uint32_t first_free = target->working_area;
 991                 uint32_t free_size = target->working_area_size;
 992
 993                 LOG_DEBUG("allocating new working area");
 994
 995                 c = target->working_areas;
 996                 while (c)
 997                 {
 998                         first_free += c->size;
 999                         free_size -= c->size;
1000                         p = &c->next;
1001                         c = c->next;
1002                 }
1003
1004                 if (free_size < size)
1005                 {
1006                         LOG_WARNING("not enough working area available(requested %u, free %u)",
1007                                     (unsigned)(size), (unsigned)(free_size));
1008                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1009                 }
1010
1011                 new_wa = malloc(sizeof(working_area_t));
1012                 new_wa->next = NULL;
1013                 new_wa->size = size;
1014                 new_wa->address = first_free;
1015
1016                 if (target->backup_working_area)
1017                 {
1018                         int retval;
1019                         new_wa->backup = malloc(new_wa->size);
1020                         if ((retval = target_read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup)) != ERROR_OK)
1021                         {
1022                                 free(new_wa->backup);
1023                                 free(new_wa);
1024                                 return retval;
1025                         }
1026                 }
1027                 else
1028                 {
1029                         new_wa->backup = NULL;
1030                 }
1031
1032                 /* put new entry in list */
1033                 *p = new_wa;
1034         }
1035
1036         /* mark as used, and return the new (reused) area */
1037         new_wa->free = 0;
1038         *area = new_wa;
1039
1040         /* user pointer */
1041         new_wa->user = area;
1042
1043         return ERROR_OK;
1044 }
1045
1046 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
1047 {
1048         if (area->free)
1049                 return ERROR_OK;
1050
1051         if (restore && target->backup_working_area)
1052         {
1053                 int retval;
1054                 if ((retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup)) != ERROR_OK)
1055                         return retval;
1056         }
1057
1058         area->free = 1;
1059
1060         /* mark user pointer invalid */
1061         *area->user = NULL;
1062         area->user = NULL;
1063
1064         return ERROR_OK;
1065 }
1066
1067 int target_free_working_area(struct target_s *target, working_area_t *area)
1068 {
1069         return target_free_working_area_restore(target, area, 1);
1070 }
1071
1072 /* free resources and restore memory, if restoring memory fails,
1073  * free up resources anyway
1074  */
1075 void target_free_all_working_areas_restore(struct target_s *target, int restore)
1076 {
1077         working_area_t *c = target->working_areas;
1078
1079         while (c)
1080         {
1081                 working_area_t *next = c->next;
1082                 target_free_working_area_restore(target, c, restore);
1083
1084                 if (c->backup)
1085                         free(c->backup);
1086
1087                 free(c);
1088
1089                 c = next;
1090         }
1091
1092         target->working_areas = NULL;
1093 }
1094
1095 void target_free_all_working_areas(struct target_s *target)
1096 {
1097         target_free_all_working_areas_restore(target, 1);
1098 }
1099
1100 int target_register_commands(struct command_context_s *cmd_ctx)
1101 {
1102
1103         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, "change the current command line target (one parameter) or lists targets (with no parameter)");
1104
1105
1106
1107
1108         register_jim(cmd_ctx, "target", jim_target, "configure target");
1109
1110         return ERROR_OK;
1111 }
1112
1113 int target_arch_state(struct target_s *target)
1114 {
1115         int retval;
1116         if (target == NULL)
1117         {
1118                 LOG_USER("No target has been configured");
1119                 return ERROR_OK;
1120         }
1121
1122         LOG_USER("target state: %s", target_state_name( target ));
1123
1124         if (target->state != TARGET_HALTED)
1125                 return ERROR_OK;
1126
1127         retval = target->type->arch_state(target);
1128         return retval;
1129 }
1130
1131 /* Single aligned words are guaranteed to use 16 or 32 bit access
1132  * mode respectively, otherwise data is handled as quickly as
1133  * possible
1134  */
1135 int target_write_buffer(struct target_s *target, uint32_t address, uint32_t size, uint8_t *buffer)
1136 {
1137         int retval;
1138         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1139                   (int)size, (unsigned)address);
1140
1141         if (!target_was_examined(target))
1142         {
1143                 LOG_ERROR("Target not examined yet");
1144                 return ERROR_FAIL;
1145         }
1146
1147         if (size == 0) {
1148                 return ERROR_OK;
1149         }
1150
1151         if ((address + size - 1) < address)
1152         {
1153                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1154                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1155                                   (unsigned)address,
1156                                   (unsigned)size);
1157                 return ERROR_FAIL;
1158         }
1159
1160         if (((address % 2) == 0) && (size == 2))
1161         {
1162                 return target_write_memory(target, address, 2, 1, buffer);
1163         }
1164
1165         /* handle unaligned head bytes */
1166         if (address % 4)
1167         {
1168                 uint32_t unaligned = 4 - (address % 4);
1169
1170                 if (unaligned > size)
1171                         unaligned = size;
1172
1173                 if ((retval = target_write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1174                         return retval;
1175
1176                 buffer += unaligned;
1177                 address += unaligned;
1178                 size -= unaligned;
1179         }
1180
1181         /* handle aligned words */
1182         if (size >= 4)
1183         {
1184                 int aligned = size - (size % 4);
1185
1186                 /* use bulk writes above a certain limit. This may have to be changed */
1187                 if (aligned > 128)
1188                 {
1189                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
1190                                 return retval;
1191                 }
1192                 else
1193                 {
1194                         if ((retval = target_write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1195                                 return retval;
1196                 }
1197
1198                 buffer += aligned;
1199                 address += aligned;
1200                 size -= aligned;
1201         }
1202
1203         /* handle tail writes of less than 4 bytes */
1204         if (size > 0)
1205         {
1206                 if ((retval = target_write_memory(target, address, 1, size, buffer)) != ERROR_OK)
1207                         return retval;
1208         }
1209
1210         return ERROR_OK;
1211 }
1212
1213 /* Single aligned words are guaranteed to use 16 or 32 bit access
1214  * mode respectively, otherwise data is handled as quickly as
1215  * possible
1216  */
1217 int target_read_buffer(struct target_s *target, uint32_t address, uint32_t size, uint8_t *buffer)
1218 {
1219         int retval;
1220         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1221                           (int)size, (unsigned)address);
1222
1223         if (!target_was_examined(target))
1224         {
1225                 LOG_ERROR("Target not examined yet");
1226                 return ERROR_FAIL;
1227         }
1228
1229         if (size == 0) {
1230                 return ERROR_OK;
1231         }
1232
1233         if ((address + size - 1) < address)
1234         {
1235                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1236                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1237                                   address,
1238                                   size);
1239                 return ERROR_FAIL;
1240         }
1241
1242         if (((address % 2) == 0) && (size == 2))
1243         {
1244                 return target_read_memory(target, address, 2, 1, buffer);
1245         }
1246
1247         /* handle unaligned head bytes */
1248         if (address % 4)
1249         {
1250                 uint32_t unaligned = 4 - (address % 4);
1251
1252                 if (unaligned > size)
1253                         unaligned = size;
1254
1255                 if ((retval = target_read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1256                         return retval;
1257
1258                 buffer += unaligned;
1259                 address += unaligned;
1260                 size -= unaligned;
1261         }
1262
1263         /* handle aligned words */
1264         if (size >= 4)
1265         {
1266                 int aligned = size - (size % 4);
1267
1268                 if ((retval = target_read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1269                         return retval;
1270
1271                 buffer += aligned;
1272                 address += aligned;
1273                 size -= aligned;
1274         }
1275
1276         /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
1277         if(size >=2)
1278         {
1279                 int aligned = size - (size%2);
1280                 retval = target_read_memory(target, address, 2, aligned / 2, buffer);
1281                 if (retval != ERROR_OK)
1282                         return retval;
1283
1284                 buffer += aligned;
1285                 address += aligned;
1286                 size -= aligned;
1287         }
1288         /* handle tail writes of less than 4 bytes */
1289         if (size > 0)
1290         {
1291                 if ((retval = target_read_memory(target, address, 1, size, buffer)) != ERROR_OK)
1292                         return retval;
1293         }
1294
1295         return ERROR_OK;
1296 }
1297
1298 int target_checksum_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t* crc)
1299 {
1300         uint8_t *buffer;
1301         int retval;
1302         uint32_t i;
1303         uint32_t checksum = 0;
1304         if (!target_was_examined(target))
1305         {
1306                 LOG_ERROR("Target not examined yet");
1307                 return ERROR_FAIL;
1308         }
1309
1310         if ((retval = target->type->checksum_memory(target, address,
1311                 size, &checksum)) != ERROR_OK)
1312         {
1313                 buffer = malloc(size);
1314                 if (buffer == NULL)
1315                 {
1316                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1317                         return ERROR_INVALID_ARGUMENTS;
1318                 }
1319                 retval = target_read_buffer(target, address, size, buffer);
1320                 if (retval != ERROR_OK)
1321                 {
1322                         free(buffer);
1323                         return retval;
1324                 }
1325
1326                 /* convert to target endianess */
1327                 for (i = 0; i < (size/sizeof(uint32_t)); i++)
1328                 {
1329                         uint32_t target_data;
1330                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1331                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1332                 }
1333
1334                 retval = image_calculate_checksum(buffer, size, &checksum);
1335                 free(buffer);
1336         }
1337
1338         *crc = checksum;
1339
1340         return retval;
1341 }
1342
1343 int target_blank_check_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t* blank)
1344 {
1345         int retval;
1346         if (!target_was_examined(target))
1347         {
1348                 LOG_ERROR("Target not examined yet");
1349                 return ERROR_FAIL;
1350         }
1351
1352         if (target->type->blank_check_memory == 0)
1353                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1354
1355         retval = target->type->blank_check_memory(target, address, size, blank);
1356
1357         return retval;
1358 }
1359
1360 int target_read_u32(struct target_s *target, uint32_t address, uint32_t *value)
1361 {
1362         uint8_t value_buf[4];
1363         if (!target_was_examined(target))
1364         {
1365                 LOG_ERROR("Target not examined yet");
1366                 return ERROR_FAIL;
1367         }
1368
1369         int retval = target_read_memory(target, address, 4, 1, value_buf);
1370
1371         if (retval == ERROR_OK)
1372         {
1373                 *value = target_buffer_get_u32(target, value_buf);
1374                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1375                                   address,
1376                                   *value);
1377         }
1378         else
1379         {
1380                 *value = 0x0;
1381                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1382                                   address);
1383         }
1384
1385         return retval;
1386 }
1387
1388 int target_read_u16(struct target_s *target, uint32_t address, uint16_t *value)
1389 {
1390         uint8_t value_buf[2];
1391         if (!target_was_examined(target))
1392         {
1393                 LOG_ERROR("Target not examined yet");
1394                 return ERROR_FAIL;
1395         }
1396
1397         int retval = target_read_memory(target, address, 2, 1, value_buf);
1398
1399         if (retval == ERROR_OK)
1400         {
1401                 *value = target_buffer_get_u16(target, value_buf);
1402                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1403                                   address,
1404                                   *value);
1405         }
1406         else
1407         {
1408                 *value = 0x0;
1409                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1410                                   address);
1411         }
1412
1413         return retval;
1414 }
1415
1416 int target_read_u8(struct target_s *target, uint32_t address, uint8_t *value)
1417 {
1418         int retval = target_read_memory(target, address, 1, 1, value);
1419         if (!target_was_examined(target))
1420         {
1421                 LOG_ERROR("Target not examined yet");
1422                 return ERROR_FAIL;
1423         }
1424
1425         if (retval == ERROR_OK)
1426         {
1427                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1428                                   address,
1429                                   *value);
1430         }
1431         else
1432         {
1433                 *value = 0x0;
1434                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1435                                   address);
1436         }
1437
1438         return retval;
1439 }
1440
1441 int target_write_u32(struct target_s *target, uint32_t address, uint32_t value)
1442 {
1443         int retval;
1444         uint8_t value_buf[4];
1445         if (!target_was_examined(target))
1446         {
1447                 LOG_ERROR("Target not examined yet");
1448                 return ERROR_FAIL;
1449         }
1450
1451         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1452                           address,
1453                           value);
1454
1455         target_buffer_set_u32(target, value_buf, value);
1456         if ((retval = target_write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1457         {
1458                 LOG_DEBUG("failed: %i", retval);
1459         }
1460
1461         return retval;
1462 }
1463
1464 int target_write_u16(struct target_s *target, uint32_t address, uint16_t value)
1465 {
1466         int retval;
1467         uint8_t value_buf[2];
1468         if (!target_was_examined(target))
1469         {
1470                 LOG_ERROR("Target not examined yet");
1471                 return ERROR_FAIL;
1472         }
1473
1474         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
1475                           address,
1476                           value);
1477
1478         target_buffer_set_u16(target, value_buf, value);
1479         if ((retval = target_write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1480         {
1481                 LOG_DEBUG("failed: %i", retval);
1482         }
1483
1484         return retval;
1485 }
1486
1487 int target_write_u8(struct target_s *target, uint32_t address, uint8_t value)
1488 {
1489         int retval;
1490         if (!target_was_examined(target))
1491         {
1492                 LOG_ERROR("Target not examined yet");
1493                 return ERROR_FAIL;
1494         }
1495
1496         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1497                           address, value);
1498
1499         if ((retval = target_write_memory(target, address, 1, 1, &value)) != ERROR_OK)
1500         {
1501                 LOG_DEBUG("failed: %i", retval);
1502         }
1503
1504         return retval;
1505 }
1506
1507 int target_register_user_commands(struct command_context_s *cmd_ctx)
1508 {
1509         int retval = ERROR_OK;
1510
1511
1512         /* script procedures */
1513         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "profiling samples the CPU PC");
1514         register_jim(cmd_ctx, "ocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing <ARRAYNAME> <WIDTH = 32/16/8> <ADDRESS> <COUNT>");
1515         register_jim(cmd_ctx, "ocd_array2mem", jim_array2mem, "convert a TCL array to memory locations and write the values  <ARRAYNAME> <WIDTH = 32/16/8> <ADDRESS> <COUNT>");
1516
1517         register_command(cmd_ctx, NULL, "fast_load_image", handle_fast_load_image_command, COMMAND_ANY,
1518                         "same args as load_image, image stored in memory - mainly for profiling purposes");
1519
1520         register_command(cmd_ctx, NULL, "fast_load", handle_fast_load_command, COMMAND_ANY,
1521                         "loads active fast load image to current target - mainly for profiling purposes");
1522
1523
1524         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "translate a virtual address into a physical address");
1525         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, "display or set a register");
1526         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1527         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1528         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1529         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1530         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1531         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run | halt | init] - default is run");
1532         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1533
1534         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1535         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1536         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1537
1538         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1539         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1540         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1541
1542         register_command(cmd_ctx,  NULL, "bp",
1543                         handle_bp_command, COMMAND_EXEC,
1544                         "list or set breakpoint [<address> <length> [hw]]");
1545         register_command(cmd_ctx,  NULL, "rbp",
1546                         handle_rbp_command, COMMAND_EXEC,
1547                         "remove breakpoint <address>");
1548         register_command(cmd_ctx,  NULL, "wp",
1549                         handle_wp_command, COMMAND_EXEC,
1550                         "list or set watchpoint "
1551                                 "[<address> <length> <r/w/a> [value] [mask]]");
1552         register_command(cmd_ctx,  NULL, "rwp",
1553                         handle_rwp_command, COMMAND_EXEC,
1554                         "remove watchpoint <address>");
1555
1556         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19'] [min_address] [max_length]");
1557         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1558         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1559         register_command(cmd_ctx,  NULL, "test_image", handle_test_image_command, COMMAND_EXEC, "test_image <file> [offset] [type]");
1560
1561         if ((retval = target_request_register_commands(cmd_ctx)) != ERROR_OK)
1562                 return retval;
1563         if ((retval = trace_register_commands(cmd_ctx)) != ERROR_OK)
1564                 return retval;
1565
1566         return retval;
1567 }
1568
1569 static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1570 {
1571         target_t *target = all_targets;
1572
1573         if (argc == 1)
1574         {
1575                 target = get_target(args[0]);
1576                 if (target == NULL) {
1577                         command_print(cmd_ctx,"Target: %s is unknown, try one of:\n", args[0]);
1578                         goto DumpTargets;
1579                 }
1580                 if (!target->tap->enabled) {
1581                         command_print(cmd_ctx,"Target: TAP %s is disabled, "
1582                                         "can't be the current target\n",
1583                                         target->tap->dotted_name);
1584                         return ERROR_FAIL;
1585                 }
1586
1587                 cmd_ctx->current_target = target->target_number;
1588                 return ERROR_OK;
1589         }
1590 DumpTargets:
1591
1592         target = all_targets;
1593         command_print(cmd_ctx, "    TargetName         Type       Endian TapName            State       ");
1594         command_print(cmd_ctx, "--  ------------------ ---------- ------ ------------------ ------------");
1595         while (target)
1596         {
1597                 const char *state;
1598                 char marker = ' ';
1599
1600                 if (target->tap->enabled)
1601                         state = target_state_name( target );
1602                 else
1603                         state = "tap-disabled";
1604
1605                 if (cmd_ctx->current_target == target->target_number)
1606                         marker = '*';
1607
1608                 /* keep columns lined up to match the headers above */
1609                 command_print(cmd_ctx, "%2d%c %-18s %-10s %-6s %-18s %s",
1610                                           target->target_number,
1611                                           marker,
1612                                           target->cmd_name,
1613                                           target_get_name(target),
1614                                           Jim_Nvp_value2name_simple(nvp_target_endian,
1615                                                                 target->endianness)->name,
1616                                           target->tap->dotted_name,
1617                                           state);
1618                 target = target->next;
1619         }
1620
1621         return ERROR_OK;
1622 }
1623
1624 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
1625
1626 static int powerDropout;
1627 static int srstAsserted;
1628
1629 static int runPowerRestore;
1630 static int runPowerDropout;
1631 static int runSrstAsserted;
1632 static int runSrstDeasserted;
1633
1634 static int sense_handler(void)
1635 {
1636         static int prevSrstAsserted = 0;
1637         static int prevPowerdropout = 0;
1638
1639         int retval;
1640         if ((retval = jtag_power_dropout(&powerDropout)) != ERROR_OK)
1641                 return retval;
1642
1643         int powerRestored;
1644         powerRestored = prevPowerdropout && !powerDropout;
1645         if (powerRestored)
1646         {
1647                 runPowerRestore = 1;
1648         }
1649
1650         long long current = timeval_ms();
1651         static long long lastPower = 0;
1652         int waitMore = lastPower + 2000 > current;
1653         if (powerDropout && !waitMore)
1654         {
1655                 runPowerDropout = 1;
1656                 lastPower = current;
1657         }
1658
1659         if ((retval = jtag_srst_asserted(&srstAsserted)) != ERROR_OK)
1660                 return retval;
1661
1662         int srstDeasserted;
1663         srstDeasserted = prevSrstAsserted && !srstAsserted;
1664
1665         static long long lastSrst = 0;
1666         waitMore = lastSrst + 2000 > current;
1667         if (srstDeasserted && !waitMore)
1668         {
1669                 runSrstDeasserted = 1;
1670                 lastSrst = current;
1671         }
1672
1673         if (!prevSrstAsserted && srstAsserted)
1674         {
1675                 runSrstAsserted = 1;
1676         }
1677
1678         prevSrstAsserted = srstAsserted;
1679         prevPowerdropout = powerDropout;
1680
1681         if (srstDeasserted || powerRestored)
1682         {
1683                 /* Other than logging the event we can't do anything here.
1684                  * Issuing a reset is a particularly bad idea as we might
1685                  * be inside a reset already.
1686                  */
1687         }
1688
1689         return ERROR_OK;
1690 }
1691
1692 static void target_call_event_callbacks_all(enum target_event e) {
1693         target_t *target;
1694         target = all_targets;
1695         while (target) {
1696                 target_call_event_callbacks(target, e);
1697                 target = target->next;
1698         }
1699 }
1700
1701 /* process target state changes */
1702 int handle_target(void *priv)
1703 {
1704         int retval = ERROR_OK;
1705
1706         /* we do not want to recurse here... */
1707         static int recursive = 0;
1708         if (! recursive)
1709         {
1710                 recursive = 1;
1711                 sense_handler();
1712                 /* danger! running these procedures can trigger srst assertions and power dropouts.
1713                  * We need to avoid an infinite loop/recursion here and we do that by
1714                  * clearing the flags after running these events.
1715                  */
1716                 int did_something = 0;
1717                 if (runSrstAsserted)
1718                 {
1719                         target_call_event_callbacks_all(TARGET_EVENT_GDB_HALT);
1720                         Jim_Eval(interp, "srst_asserted");
1721                         did_something = 1;
1722                 }
1723                 if (runSrstDeasserted)
1724                 {
1725                         Jim_Eval(interp, "srst_deasserted");
1726                         did_something = 1;
1727                 }
1728                 if (runPowerDropout)
1729                 {
1730                         target_call_event_callbacks_all(TARGET_EVENT_GDB_HALT);
1731                         Jim_Eval(interp, "power_dropout");
1732                         did_something = 1;
1733                 }
1734                 if (runPowerRestore)
1735                 {
1736                         Jim_Eval(interp, "power_restore");
1737                         did_something = 1;
1738                 }
1739
1740                 if (did_something)
1741                 {
1742                         /* clear detect flags */
1743                         sense_handler();
1744                 }
1745
1746                 /* clear action flags */
1747
1748                 runSrstAsserted = 0;
1749                 runSrstDeasserted = 0;
1750                 runPowerRestore = 0;
1751                 runPowerDropout = 0;
1752
1753                 recursive = 0;
1754         }
1755
1756         /* Poll targets for state changes unless that's globally disabled.
1757          * Skip targets that are currently disabled.
1758          */
1759         for (target_t *target = all_targets;
1760                         is_jtag_poll_safe() && target;
1761                         target = target->next)
1762         {
1763                 if (!target->tap->enabled)
1764                         continue;
1765
1766                 /* only poll target if we've got power and srst isn't asserted */
1767                 if (!powerDropout && !srstAsserted)
1768                 {
1769                         /* polling may fail silently until the target has been examined */
1770                         if ((retval = target_poll(target)) != ERROR_OK)
1771                         {
1772                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1773                                 return retval;
1774                         }
1775                 }
1776         }
1777
1778         return retval;
1779 }
1780
1781 static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1782 {
1783         target_t *target;
1784         reg_t *reg = NULL;
1785         int count = 0;
1786         char *value;
1787
1788         LOG_DEBUG("-");
1789
1790         target = get_current_target(cmd_ctx);
1791
1792         /* list all available registers for the current target */
1793         if (argc == 0)
1794         {
1795                 reg_cache_t *cache = target->reg_cache;
1796
1797                 count = 0;
1798                 while (cache)
1799                 {
1800                         int i;
1801
1802                         for (i = 0, reg = cache->reg_list;
1803                                         i < cache->num_regs;
1804                                         i++, reg++, count++)
1805                         {
1806                                 /* only print cached values if they are valid */
1807                                 if (reg->valid) {
1808                                         value = buf_to_str(reg->value,
1809                                                         reg->size, 16);
1810                                         command_print(cmd_ctx,
1811                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
1812                                                         count, reg->name,
1813                                                         reg->size, value,
1814                                                         reg->dirty
1815                                                                 ? " (dirty)"
1816                                                                 : "");
1817                                         free(value);
1818                                 } else {
1819                                         command_print(cmd_ctx, "(%i) %s (/%" PRIu32 ")",
1820                                                           count, reg->name,
1821                                                           reg->size) ;
1822                                 }
1823                         }
1824                         cache = cache->next;
1825                 }
1826
1827                 return ERROR_OK;
1828         }
1829
1830         /* access a single register by its ordinal number */
1831         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1832         {
1833                 unsigned num;
1834                 int retval = parse_uint(args[0], &num);
1835                 if (ERROR_OK != retval)
1836                         return ERROR_COMMAND_SYNTAX_ERROR;
1837
1838                 reg_cache_t *cache = target->reg_cache;
1839                 count = 0;
1840                 while (cache)
1841                 {
1842                         int i;
1843                         for (i = 0; i < cache->num_regs; i++)
1844                         {
1845                                 if (count++ == (int)num)
1846                                 {
1847                                         reg = &cache->reg_list[i];
1848                                         break;
1849                                 }
1850                         }
1851                         if (reg)
1852                                 break;
1853                         cache = cache->next;
1854                 }
1855
1856                 if (!reg)
1857                 {
1858                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1859                         return ERROR_OK;
1860                 }
1861         } else /* access a single register by its name */
1862         {
1863                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1864
1865                 if (!reg)
1866                 {
1867                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1868                         return ERROR_OK;
1869                 }
1870         }
1871
1872         /* display a register */
1873         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1874         {
1875                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1876                         reg->valid = 0;
1877
1878                 if (reg->valid == 0)
1879                 {
1880                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1881                         arch_type->get(reg);
1882                 }
1883                 value = buf_to_str(reg->value, reg->size, 16);
1884                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
1885                 free(value);
1886                 return ERROR_OK;
1887         }
1888
1889         /* set register value */
1890         if (argc == 2)
1891         {
1892                 uint8_t *buf = malloc(CEIL(reg->size, 8));
1893                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1894
1895                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1896                 arch_type->set(reg, buf);
1897
1898                 value = buf_to_str(reg->value, reg->size, 16);
1899                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
1900                 free(value);
1901
1902                 free(buf);
1903
1904                 return ERROR_OK;
1905         }
1906
1907         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1908
1909         return ERROR_OK;
1910 }
1911
1912 static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1913 {
1914         int retval = ERROR_OK;
1915         target_t *target = get_current_target(cmd_ctx);
1916
1917         if (argc == 0)
1918         {
1919                 command_print(cmd_ctx, "background polling: %s",
1920                                 jtag_poll_get_enabled() ? "on" : "off");
1921                 command_print(cmd_ctx, "TAP: %s (%s)",
1922                                 target->tap->dotted_name,
1923                                 target->tap->enabled ? "enabled" : "disabled");
1924                 if (!target->tap->enabled)
1925                         return ERROR_OK;
1926                 if ((retval = target_poll(target)) != ERROR_OK)
1927                         return retval;
1928                 if ((retval = target_arch_state(target)) != ERROR_OK)
1929                         return retval;
1930
1931         }
1932         else if (argc == 1)
1933         {
1934                 if (strcmp(args[0], "on") == 0)
1935                 {
1936                         jtag_poll_set_enabled(true);
1937                 }
1938                 else if (strcmp(args[0], "off") == 0)
1939                 {
1940                         jtag_poll_set_enabled(false);
1941                 }
1942                 else
1943                 {
1944                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1945                 }
1946         } else
1947         {
1948                 return ERROR_COMMAND_SYNTAX_ERROR;
1949         }
1950
1951         return retval;
1952 }
1953
1954 static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1955 {
1956         if (argc > 1)
1957                 return ERROR_COMMAND_SYNTAX_ERROR;
1958
1959         unsigned ms = 5000;
1960         if (1 == argc)
1961         {
1962                 int retval = parse_uint(args[0], &ms);
1963                 if (ERROR_OK != retval)
1964                 {
1965                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1966                         return ERROR_COMMAND_SYNTAX_ERROR;
1967                 }
1968                 // convert seconds (given) to milliseconds (needed)
1969                 ms *= 1000;
1970         }
1971
1972         target_t *target = get_current_target(cmd_ctx);
1973         return target_wait_state(target, TARGET_HALTED, ms);
1974 }
1975
1976 /* wait for target state to change. The trick here is to have a low
1977  * latency for short waits and not to suck up all the CPU time
1978  * on longer waits.
1979  *
1980  * After 500ms, keep_alive() is invoked
1981  */
1982 int target_wait_state(target_t *target, enum target_state state, int ms)
1983 {
1984         int retval;
1985         long long then = 0, cur;
1986         int once = 1;
1987
1988         for (;;)
1989         {
1990                 if ((retval = target_poll(target)) != ERROR_OK)
1991                         return retval;
1992                 if (target->state == state)
1993                 {
1994                         break;
1995                 }
1996                 cur = timeval_ms();
1997                 if (once)
1998                 {
1999                         once = 0;
2000                         then = timeval_ms();
2001                         LOG_DEBUG("waiting for target %s...",
2002                                 Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
2003                 }
2004
2005                 if (cur-then > 500)
2006                 {
2007                         keep_alive();
2008                 }
2009
2010                 if ((cur-then) > ms)
2011                 {
2012                         LOG_ERROR("timed out while waiting for target %s",
2013                                 Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
2014                         return ERROR_FAIL;
2015                 }
2016         }
2017
2018         return ERROR_OK;
2019 }
2020
2021 static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2022 {
2023         LOG_DEBUG("-");
2024
2025         target_t *target = get_current_target(cmd_ctx);
2026         int retval = target_halt(target);
2027         if (ERROR_OK != retval)
2028                 return retval;
2029
2030         if (argc == 1)
2031         {
2032                 unsigned wait;
2033                 retval = parse_uint(args[0], &wait);
2034                 if (ERROR_OK != retval)
2035                         return ERROR_COMMAND_SYNTAX_ERROR;
2036                 if (!wait)
2037                         return ERROR_OK;
2038         }
2039
2040         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
2041 }
2042
2043 static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2044 {
2045         target_t *target = get_current_target(cmd_ctx);
2046
2047         LOG_USER("requesting target halt and executing a soft reset");
2048
2049         target->type->soft_reset_halt(target);
2050
2051         return ERROR_OK;
2052 }
2053
2054 static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2055 {
2056         if (argc > 1)
2057                 return ERROR_COMMAND_SYNTAX_ERROR;
2058
2059         enum target_reset_mode reset_mode = RESET_RUN;
2060         if (argc == 1)
2061         {
2062                 const Jim_Nvp *n;
2063                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, args[0]);
2064                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN)) {
2065                         return ERROR_COMMAND_SYNTAX_ERROR;
2066                 }
2067                 reset_mode = n->value;
2068         }
2069
2070         /* reset *all* targets */
2071         return target_process_reset(cmd_ctx, reset_mode);
2072 }
2073
2074
2075 static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2076 {
2077         int current = 1;
2078         if (argc > 1)
2079                 return ERROR_COMMAND_SYNTAX_ERROR;
2080
2081         target_t *target = get_current_target(cmd_ctx);
2082         target_handle_event(target, TARGET_EVENT_OLD_pre_resume);
2083
2084         /* with no args, resume from current pc, addr = 0,
2085          * with one arguments, addr = args[0],
2086          * handle breakpoints, not debugging */
2087         uint32_t addr = 0;
2088         if (argc == 1)
2089         {
2090                 int retval = parse_u32(args[0], &addr);
2091                 if (ERROR_OK != retval)
2092                         return retval;
2093                 current = 0;
2094         }
2095
2096         return target_resume(target, current, addr, 1, 0);
2097 }
2098
2099 static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2100 {
2101         if (argc > 1)
2102                 return ERROR_COMMAND_SYNTAX_ERROR;
2103
2104         LOG_DEBUG("-");
2105
2106         /* with no args, step from current pc, addr = 0,
2107          * with one argument addr = args[0],
2108          * handle breakpoints, debugging */
2109         uint32_t addr = 0;
2110         int current_pc = 1;
2111         if (argc == 1)
2112         {
2113                 int retval = parse_u32(args[0], &addr);
2114                 if (ERROR_OK != retval)
2115                         return retval;
2116                 current_pc = 0;
2117         }
2118
2119         target_t *target = get_current_target(cmd_ctx);
2120
2121         return target->type->step(target, current_pc, addr, 1);
2122 }
2123
2124 static void handle_md_output(struct command_context_s *cmd_ctx,
2125                 struct target_s *target, uint32_t address, unsigned size,
2126                 unsigned count, const uint8_t *buffer)
2127 {
2128         const unsigned line_bytecnt = 32;
2129         unsigned line_modulo = line_bytecnt / size;
2130
2131         char output[line_bytecnt * 4 + 1];
2132         unsigned output_len = 0;
2133
2134         const char *value_fmt;
2135         switch (size) {
2136         case 4: value_fmt = "%8.8x "; break;
2137         case 2: value_fmt = "%4.2x "; break;
2138         case 1: value_fmt = "%2.2x "; break;
2139         default:
2140                 LOG_ERROR("invalid memory read size: %u", size);
2141                 exit(-1);
2142         }
2143
2144         for (unsigned i = 0; i < count; i++)
2145         {
2146                 if (i % line_modulo == 0)
2147                 {
2148                         output_len += snprintf(output + output_len,
2149                                         sizeof(output) - output_len,
2150                                         "0x%8.8x: ",
2151                                         (unsigned)(address + (i*size)));
2152                 }
2153
2154                 uint32_t value = 0;
2155                 const uint8_t *value_ptr = buffer + i * size;
2156                 switch (size) {
2157                 case 4: value = target_buffer_get_u32(target, value_ptr); break;
2158                 case 2: value = target_buffer_get_u16(target, value_ptr); break;
2159                 case 1: value = *value_ptr;
2160                 }
2161                 output_len += snprintf(output + output_len,
2162                                 sizeof(output) - output_len,
2163                                 value_fmt, value);
2164
2165                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1))
2166                 {
2167                         command_print(cmd_ctx, "%s", output);
2168                         output_len = 0;
2169                 }
2170         }
2171 }
2172
2173 static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2174 {
2175         if (argc < 1)
2176                 return ERROR_COMMAND_SYNTAX_ERROR;
2177
2178         unsigned size = 0;
2179         switch (cmd[2]) {
2180         case 'w': size = 4; break;
2181         case 'h': size = 2; break;
2182         case 'b': size = 1; break;
2183         default: return ERROR_COMMAND_SYNTAX_ERROR;
2184         }
2185
2186         uint32_t address;
2187         int retval = parse_u32(args[0], &address);
2188         if (ERROR_OK != retval)
2189                 return retval;
2190
2191         unsigned count = 1;
2192         if (argc == 2)
2193         {
2194                 retval = parse_uint(args[1], &count);
2195                 if (ERROR_OK != retval)
2196                         return retval;
2197         }
2198
2199         uint8_t *buffer = calloc(count, size);
2200
2201         target_t *target = get_current_target(cmd_ctx);
2202         retval = target_read_memory(target,
2203                                 address, size, count, buffer);
2204         if (ERROR_OK == retval)
2205                 handle_md_output(cmd_ctx, target, address, size, count, buffer);
2206
2207         free(buffer);
2208
2209         return retval;
2210 }
2211
2212 static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2213 {
2214          if ((argc < 2) || (argc > 3))
2215                 return ERROR_COMMAND_SYNTAX_ERROR;
2216
2217         uint32_t address;
2218         int retval = parse_u32(args[0], &address);
2219         if (ERROR_OK != retval)
2220                 return retval;
2221
2222         uint32_t value;
2223         retval = parse_u32(args[1], &value);
2224         if (ERROR_OK != retval)
2225                 return retval;
2226
2227         unsigned count = 1;
2228         if (argc == 3)
2229         {
2230                 retval = parse_uint(args[2], &count);
2231                 if (ERROR_OK != retval)
2232                         return retval;
2233         }
2234
2235         target_t *target = get_current_target(cmd_ctx);
2236         unsigned wordsize;
2237         uint8_t value_buf[4];
2238         switch (cmd[2])
2239         {
2240                 case 'w':
2241                         wordsize = 4;
2242                         target_buffer_set_u32(target, value_buf, value);
2243                         break;
2244                 case 'h':
2245                         wordsize = 2;
2246                         target_buffer_set_u16(target, value_buf, value);
2247                         break;
2248                 case 'b':
2249                         wordsize = 1;
2250                         value_buf[0] = value;
2251                         break;
2252                 default:
2253                         return ERROR_COMMAND_SYNTAX_ERROR;
2254         }
2255         for (unsigned i = 0; i < count; i++)
2256         {
2257                 retval = target_write_memory(target,
2258                                 address + i * wordsize, wordsize, 1, value_buf);
2259                 if (ERROR_OK != retval)
2260                         return retval;
2261                 keep_alive();
2262         }
2263
2264         return ERROR_OK;
2265
2266 }
2267
2268 static int parse_load_image_command_args(char **args, int argc,
2269                 image_t *image, uint32_t *min_address, uint32_t *max_address)
2270 {
2271         if (argc < 1 || argc > 5)
2272                 return ERROR_COMMAND_SYNTAX_ERROR;
2273
2274         /* a base address isn't always necessary,
2275          * default to 0x0 (i.e. don't relocate) */
2276         if (argc >= 2)
2277         {
2278                 uint32_t addr;
2279                 int retval = parse_u32(args[1], &addr);
2280                 if (ERROR_OK != retval)
2281                         return ERROR_COMMAND_SYNTAX_ERROR;
2282                 image->base_address = addr;
2283                 image->base_address_set = 1;
2284         }
2285         else
2286                 image->base_address_set = 0;
2287
2288         image->start_address_set = 0;
2289
2290         if (argc >= 4)
2291         {
2292                 int retval = parse_u32(args[3], min_address);
2293                 if (ERROR_OK != retval)
2294                         return ERROR_COMMAND_SYNTAX_ERROR;
2295         }
2296         if (argc == 5)
2297         {
2298                 int retval = parse_u32(args[4], max_address);
2299                 if (ERROR_OK != retval)
2300                         return ERROR_COMMAND_SYNTAX_ERROR;
2301                 // use size (given) to find max (required)
2302                 *max_address += *min_address;
2303         }
2304
2305         if (*min_address > *max_address)
2306                 return ERROR_COMMAND_SYNTAX_ERROR;
2307
2308         return ERROR_OK;
2309 }
2310
2311 static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2312 {
2313         uint8_t *buffer;
2314         uint32_t buf_cnt;
2315         uint32_t image_size;
2316         uint32_t min_address = 0;
2317         uint32_t max_address = 0xffffffff;
2318         int i;
2319         int retvaltemp;
2320
2321         image_t image;
2322
2323         duration_t duration;
2324         char *duration_text;
2325
2326         int retval = parse_load_image_command_args(args, argc,
2327                         &image, &min_address, &max_address);
2328         if (ERROR_OK != retval)
2329                 return retval;
2330
2331         target_t *target = get_current_target(cmd_ctx);
2332         duration_start_measure(&duration);
2333
2334         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
2335         {
2336                 return ERROR_OK;
2337         }
2338
2339         image_size = 0x0;
2340         retval = ERROR_OK;
2341         for (i = 0; i < image.num_sections; i++)
2342         {
2343                 buffer = malloc(image.sections[i].size);
2344                 if (buffer == NULL)
2345                 {
2346                         command_print(cmd_ctx,
2347                                                   "error allocating buffer for section (%d bytes)",
2348                                                   (int)(image.sections[i].size));
2349                         break;
2350                 }
2351
2352                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2353                 {
2354                         free(buffer);
2355                         break;
2356                 }
2357
2358                 uint32_t offset = 0;
2359                 uint32_t length = buf_cnt;
2360
2361                 /* DANGER!!! beware of unsigned comparision here!!! */
2362
2363                 if ((image.sections[i].base_address + buf_cnt >= min_address)&&
2364                                 (image.sections[i].base_address < max_address))
2365                 {
2366                         if (image.sections[i].base_address < min_address)
2367                         {
2368                                 /* clip addresses below */
2369                                 offset += min_address-image.sections[i].base_address;
2370                                 length -= offset;
2371                         }
2372
2373                         if (image.sections[i].base_address + buf_cnt > max_address)
2374                         {
2375                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2376                         }
2377
2378                         if ((retval = target_write_buffer(target, image.sections[i].base_address + offset, length, buffer + offset)) != ERROR_OK)
2379                         {
2380                                 free(buffer);
2381                                 break;
2382                         }
2383                         image_size += length;
2384                         command_print(cmd_ctx, "%u bytes written at address 0x%8.8" PRIx32 "",
2385                                                   (unsigned int)length,
2386                                                   image.sections[i].base_address + offset);
2387                 }
2388
2389                 free(buffer);
2390         }
2391
2392         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
2393         {
2394                 image_close(&image);
2395                 return retvaltemp;
2396         }
2397
2398         if (retval == ERROR_OK)
2399         {
2400                 command_print(cmd_ctx, "downloaded %u byte in %s",
2401                                           (unsigned int)image_size,
2402                                           duration_text);
2403         }
2404         free(duration_text);
2405
2406         image_close(&image);
2407
2408         return retval;
2409
2410 }
2411
2412 static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2413 {
2414         fileio_t fileio;
2415
2416         uint8_t buffer[560];
2417         int retvaltemp;
2418
2419         duration_t duration;
2420         char *duration_text;
2421
2422         target_t *target = get_current_target(cmd_ctx);
2423
2424         if (argc != 3)
2425         {
2426                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
2427                 return ERROR_OK;
2428         }
2429
2430         uint32_t address;
2431         int retval = parse_u32(args[1], &address);
2432         if (ERROR_OK != retval)
2433                 return retval;
2434
2435         uint32_t size;
2436         retval = parse_u32(args[2], &size);
2437         if (ERROR_OK != retval)
2438                 return retval;
2439
2440         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2441         {
2442                 return ERROR_OK;
2443         }
2444
2445         duration_start_measure(&duration);
2446
2447         while (size > 0)
2448         {
2449                 uint32_t size_written;
2450                 uint32_t this_run_size = (size > 560) ? 560 : size;
2451
2452                 retval = target_read_buffer(target, address, this_run_size, buffer);
2453                 if (retval != ERROR_OK)
2454                 {
2455                         break;
2456                 }
2457
2458                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2459                 if (retval != ERROR_OK)
2460                 {
2461                         break;
2462                 }
2463
2464                 size -= this_run_size;
2465                 address += this_run_size;
2466         }
2467
2468         if ((retvaltemp = fileio_close(&fileio)) != ERROR_OK)
2469                 return retvaltemp;
2470
2471         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
2472                 return retvaltemp;
2473
2474         if (retval == ERROR_OK)
2475         {
2476                 command_print(cmd_ctx, "dumped %lld byte in %s",
2477                                 fileio.size, duration_text);
2478                 free(duration_text);
2479         }
2480
2481         return retval;
2482 }
2483
2484 static int handle_verify_image_command_internal(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, int verify)
2485 {
2486         uint8_t *buffer;
2487         uint32_t buf_cnt;
2488         uint32_t image_size;
2489         int i;
2490         int retval, retvaltemp;
2491         uint32_t checksum = 0;
2492         uint32_t mem_checksum = 0;
2493
2494         image_t image;
2495
2496         duration_t duration;
2497         char *duration_text;
2498
2499         target_t *target = get_current_target(cmd_ctx);
2500
2501         if (argc < 1)
2502         {
2503                 return ERROR_COMMAND_SYNTAX_ERROR;
2504         }
2505
2506         if (!target)
2507         {
2508                 LOG_ERROR("no target selected");
2509                 return ERROR_FAIL;
2510         }
2511
2512         duration_start_measure(&duration);
2513
2514         if (argc >= 2)
2515         {
2516                 uint32_t addr;
2517                 retval = parse_u32(args[1], &addr);
2518                 if (ERROR_OK != retval)
2519                         return ERROR_COMMAND_SYNTAX_ERROR;
2520                 image.base_address = addr;
2521                 image.base_address_set = 1;
2522         }
2523         else
2524         {
2525                 image.base_address_set = 0;
2526                 image.base_address = 0x0;
2527         }
2528
2529         image.start_address_set = 0;
2530
2531         if ((retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2532         {
2533                 return retval;
2534         }
2535
2536         image_size = 0x0;
2537         retval = ERROR_OK;
2538         for (i = 0; i < image.num_sections; i++)
2539         {
2540                 buffer = malloc(image.sections[i].size);
2541                 if (buffer == NULL)
2542                 {
2543                         command_print(cmd_ctx,
2544                                                   "error allocating buffer for section (%d bytes)",
2545                                                   (int)(image.sections[i].size));
2546                         break;
2547                 }
2548                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2549                 {
2550                         free(buffer);
2551                         break;
2552                 }
2553
2554                 if (verify)
2555                 {
2556                         /* calculate checksum of image */
2557                         image_calculate_checksum(buffer, buf_cnt, &checksum);
2558
2559                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2560                         if (retval != ERROR_OK)
2561                         {
2562                                 free(buffer);
2563                                 break;
2564                         }
2565
2566                         if (checksum != mem_checksum)
2567                         {
2568                                 /* failed crc checksum, fall back to a binary compare */
2569                                 uint8_t *data;
2570
2571                                 command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2572
2573                                 data = (uint8_t*)malloc(buf_cnt);
2574
2575                                 /* Can we use 32bit word accesses? */
2576                                 int size = 1;
2577                                 int count = buf_cnt;
2578                                 if ((count % 4) == 0)
2579                                 {
2580                                         size *= 4;
2581                                         count /= 4;
2582                                 }
2583                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
2584                                 if (retval == ERROR_OK)
2585                                 {
2586                                         uint32_t t;
2587                                         for (t = 0; t < buf_cnt; t++)
2588                                         {
2589                                                 if (data[t] != buffer[t])
2590                                                 {
2591                                                         command_print(cmd_ctx,
2592                                                                                   "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n",
2593                                                                                   (unsigned)(t + image.sections[i].base_address),
2594                                                                                   data[t],
2595                                                                                   buffer[t]);
2596                                                         free(data);
2597                                                         free(buffer);
2598                                                         retval = ERROR_FAIL;
2599                                                         goto done;
2600                                                 }
2601                                                 if ((t%16384) == 0)
2602                                                 {
2603                                                         keep_alive();
2604                                                 }
2605                                         }
2606                                 }
2607
2608                                 free(data);
2609                         }
2610                 } else
2611                 {
2612                         command_print(cmd_ctx, "address 0x%08" PRIx32 " length 0x%08" PRIx32 "",
2613                                                   image.sections[i].base_address,
2614                                                   buf_cnt);
2615                 }
2616
2617                 free(buffer);
2618                 image_size += buf_cnt;
2619         }
2620 done:
2621
2622         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
2623         {
2624                 image_close(&image);
2625                 return retvaltemp;
2626         }
2627
2628         if (retval == ERROR_OK)
2629         {
2630                 command_print(cmd_ctx, "verified %u bytes in %s",
2631                                           (unsigned int)image_size,
2632                                           duration_text);
2633         }
2634         free(duration_text);
2635
2636         image_close(&image);
2637
2638         return retval;
2639 }
2640
2641 static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2642 {
2643         return handle_verify_image_command_internal(cmd_ctx, cmd, args, argc, 1);
2644 }
2645
2646 static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2647 {
2648         return handle_verify_image_command_internal(cmd_ctx, cmd, args, argc, 0);
2649 }
2650
2651 static int handle_bp_command_list(struct command_context_s *cmd_ctx)
2652 {
2653         target_t *target = get_current_target(cmd_ctx);
2654         breakpoint_t *breakpoint = target->breakpoints;
2655         while (breakpoint)
2656         {
2657                 if (breakpoint->type == BKPT_SOFT)
2658                 {
2659                         char* buf = buf_to_str(breakpoint->orig_instr,
2660                                         breakpoint->length, 16);
2661                         command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
2662                                         breakpoint->address,
2663                                         breakpoint->length,
2664                                         breakpoint->set, buf);
2665                         free(buf);
2666                 }
2667                 else
2668                 {
2669                         command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i",
2670                                                   breakpoint->address,
2671                                                   breakpoint->length, breakpoint->set);
2672                 }
2673
2674                 breakpoint = breakpoint->next;
2675         }
2676         return ERROR_OK;
2677 }
2678
2679 static int handle_bp_command_set(struct command_context_s *cmd_ctx,
2680                 uint32_t addr, uint32_t length, int hw)
2681 {
2682         target_t *target = get_current_target(cmd_ctx);
2683         int retval = breakpoint_add(target, addr, length, hw);
2684         if (ERROR_OK == retval)
2685                 command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
2686         else
2687                 LOG_ERROR("Failure setting breakpoint");
2688         return retval;
2689 }
2690
2691 static int handle_bp_command(struct command_context_s *cmd_ctx,
2692                 char *cmd, char **args, int argc)
2693 {
2694         if (argc == 0)
2695                 return handle_bp_command_list(cmd_ctx);
2696
2697         if (argc < 2 || argc > 3)
2698         {
2699                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2700                 return ERROR_COMMAND_SYNTAX_ERROR;
2701         }
2702
2703         uint32_t addr;
2704         int retval = parse_u32(args[0], &addr);
2705         if (ERROR_OK != retval)
2706                 return retval;
2707
2708         uint32_t length;
2709         retval = parse_u32(args[1], &length);
2710         if (ERROR_OK != retval)
2711                 return retval;
2712
2713         int hw = BKPT_SOFT;
2714         if (argc == 3)
2715         {
2716                 if (strcmp(args[2], "hw") == 0)
2717                         hw = BKPT_HARD;
2718                 else
2719                         return ERROR_COMMAND_SYNTAX_ERROR;
2720         }
2721
2722         return handle_bp_command_set(cmd_ctx, addr, length, hw);
2723 }
2724
2725 static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2726 {
2727         if (argc != 1)
2728                 return ERROR_COMMAND_SYNTAX_ERROR;
2729
2730         uint32_t addr;
2731         int retval = parse_u32(args[0], &addr);
2732         if (ERROR_OK != retval)
2733                 return retval;
2734
2735         target_t *target = get_current_target(cmd_ctx);
2736         breakpoint_remove(target, addr);
2737
2738         return ERROR_OK;
2739 }
2740
2741 static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2742 {
2743         target_t *target = get_current_target(cmd_ctx);
2744
2745         if (argc == 0)
2746         {
2747                 watchpoint_t *watchpoint = target->watchpoints;
2748
2749                 while (watchpoint)
2750                 {
2751                         command_print(cmd_ctx,
2752                                                   "address: 0x%8.8" PRIx32 ", len: 0x%8.8x, r/w/a: %i, value: 0x%8.8" PRIx32 ", mask: 0x%8.8" PRIx32 "",
2753                                                   watchpoint->address,
2754                                                   watchpoint->length,
2755                                                   (int)(watchpoint->rw),
2756                                                   watchpoint->value,
2757                                                   watchpoint->mask);
2758                         watchpoint = watchpoint->next;
2759                 }
2760                 return ERROR_OK;
2761         }
2762
2763         enum watchpoint_rw type = WPT_ACCESS;
2764         uint32_t addr = 0;
2765         uint32_t length = 0;
2766         uint32_t data_value = 0x0;
2767         uint32_t data_mask = 0xffffffff;
2768         int retval;
2769
2770         switch (argc)
2771         {
2772         case 5:
2773                 retval = parse_u32(args[4], &data_mask);
2774                 if (ERROR_OK != retval)
2775                         return retval;
2776                 // fall through
2777         case 4:
2778                 retval = parse_u32(args[3], &data_value);
2779                 if (ERROR_OK != retval)
2780                         return retval;
2781                 // fall through
2782         case 3:
2783                 switch (args[2][0])
2784                 {
2785                 case 'r':
2786                         type = WPT_READ;
2787                         break;
2788                 case 'w':
2789                         type = WPT_WRITE;
2790                         break;
2791                 case 'a':
2792                         type = WPT_ACCESS;
2793                         break;
2794                 default:
2795                         LOG_ERROR("invalid watchpoint mode ('%c')", args[2][0]);
2796                         return ERROR_COMMAND_SYNTAX_ERROR;
2797                 }
2798                 // fall through
2799         case 2:
2800                 retval = parse_u32(args[1], &length);
2801                 if (ERROR_OK != retval)
2802                         return retval;
2803                 retval = parse_u32(args[0], &addr);
2804                 if (ERROR_OK != retval)
2805                         return retval;
2806                 break;
2807
2808         default:
2809                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2810                 return ERROR_COMMAND_SYNTAX_ERROR;
2811         }
2812
2813         retval = watchpoint_add(target, addr, length, type,
2814                         data_value, data_mask);
2815         if (ERROR_OK != retval)
2816                 LOG_ERROR("Failure setting watchpoints");
2817
2818         return retval;
2819 }
2820
2821 static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2822 {
2823         if (argc != 1)
2824                 return ERROR_COMMAND_SYNTAX_ERROR;
2825
2826         uint32_t addr;
2827         int retval = parse_u32(args[0], &addr);
2828         if (ERROR_OK != retval)
2829                 return retval;
2830
2831         target_t *target = get_current_target(cmd_ctx);
2832         watchpoint_remove(target, addr);
2833
2834         return ERROR_OK;
2835 }
2836
2837
2838 /**
2839  * Translate a virtual address to a physical address.
2840  *
2841  * The low-level target implementation must have logged a detailed error
2842  * which is forwarded to telnet/GDB session.
2843  */
2844 static int handle_virt2phys_command(command_context_t *cmd_ctx,
2845                 char *cmd, char **args, int argc)
2846 {
2847         if (argc != 1)
2848                 return ERROR_COMMAND_SYNTAX_ERROR;
2849
2850         uint32_t va;
2851         int retval = parse_u32(args[0], &va);
2852         if (ERROR_OK != retval)
2853                 return retval;
2854         uint32_t pa;
2855
2856         target_t *target = get_current_target(cmd_ctx);
2857         retval = target->type->virt2phys(target, va, &pa);
2858         if (retval == ERROR_OK)
2859                 command_print(cmd_ctx, "Physical address 0x%08" PRIx32 "", pa);
2860
2861         return retval;
2862 }
2863
2864 static void writeData(FILE *f, const void *data, size_t len)
2865 {
2866         size_t written = fwrite(data, 1, len, f);
2867         if (written != len)
2868                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
2869 }
2870
2871 static void writeLong(FILE *f, int l)
2872 {
2873         int i;
2874         for (i = 0; i < 4; i++)
2875         {
2876                 char c = (l >> (i*8))&0xff;
2877                 writeData(f, &c, 1);
2878         }
2879
2880 }
2881
2882 static void writeString(FILE *f, char *s)
2883 {
2884         writeData(f, s, strlen(s));
2885 }
2886
2887 /* Dump a gmon.out histogram file. */
2888 static void writeGmon(uint32_t *samples, uint32_t sampleNum, char *filename)
2889 {
2890         uint32_t i;
2891         FILE *f = fopen(filename, "w");
2892         if (f == NULL)
2893                 return;
2894         writeString(f, "gmon");
2895         writeLong(f, 0x00000001); /* Version */
2896         writeLong(f, 0); /* padding */
2897         writeLong(f, 0); /* padding */
2898         writeLong(f, 0); /* padding */
2899
2900         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
2901         writeData(f, &zero, 1);
2902
2903         /* figure out bucket size */
2904         uint32_t min = samples[0];
2905         uint32_t max = samples[0];
2906         for (i = 0; i < sampleNum; i++)
2907         {
2908                 if (min > samples[i])
2909                 {
2910                         min = samples[i];
2911                 }
2912                 if (max < samples[i])
2913                 {
2914                         max = samples[i];
2915                 }
2916         }
2917
2918         int addressSpace = (max-min + 1);
2919
2920         static const uint32_t maxBuckets = 256 * 1024; /* maximum buckets. */
2921         uint32_t length = addressSpace;
2922         if (length > maxBuckets)
2923         {
2924                 length = maxBuckets;
2925         }
2926         int *buckets = malloc(sizeof(int)*length);
2927         if (buckets == NULL)
2928         {
2929                 fclose(f);
2930                 return;
2931         }
2932         memset(buckets, 0, sizeof(int)*length);
2933         for (i = 0; i < sampleNum;i++)
2934         {
2935                 uint32_t address = samples[i];
2936                 long long a = address-min;
2937                 long long b = length-1;
2938                 long long c = addressSpace-1;
2939                 int index = (a*b)/c; /* danger!!!! int32 overflows */
2940                 buckets[index]++;
2941         }
2942
2943         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
2944         writeLong(f, min);                      /* low_pc */
2945         writeLong(f, max);                      /* high_pc */
2946         writeLong(f, length);           /* # of samples */
2947         writeLong(f, 64000000);         /* 64MHz */
2948         writeString(f, "seconds");
2949         for (i = 0; i < (15-strlen("seconds")); i++)
2950                 writeData(f, &zero, 1);
2951         writeString(f, "s");
2952
2953         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
2954
2955         char *data = malloc(2*length);
2956         if (data != NULL)
2957         {
2958                 for (i = 0; i < length;i++)
2959                 {
2960                         int val;
2961                         val = buckets[i];
2962                         if (val > 65535)
2963                         {
2964                                 val = 65535;
2965                         }
2966                         data[i*2]=val&0xff;
2967                         data[i*2 + 1]=(val >> 8)&0xff;
2968                 }
2969                 free(buckets);
2970                 writeData(f, data, length * 2);
2971                 free(data);
2972         } else
2973         {
2974                 free(buckets);
2975         }
2976
2977         fclose(f);
2978 }
2979
2980 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2981 static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2982 {
2983         target_t *target = get_current_target(cmd_ctx);
2984         struct timeval timeout, now;
2985
2986         gettimeofday(&timeout, NULL);
2987         if (argc != 2)
2988         {
2989                 return ERROR_COMMAND_SYNTAX_ERROR;
2990         }
2991         unsigned offset;
2992         int retval = parse_uint(args[0], &offset);
2993         if (ERROR_OK != retval)
2994                 return retval;
2995
2996         timeval_add_time(&timeout, offset, 0);
2997
2998         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2999
3000         static const int maxSample = 10000;
3001         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3002         if (samples == NULL)
3003                 return ERROR_OK;
3004
3005         int numSamples = 0;
3006         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3007         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
3008
3009         for (;;)
3010         {
3011                 target_poll(target);
3012                 if (target->state == TARGET_HALTED)
3013                 {
3014                         uint32_t t=*((uint32_t *)reg->value);
3015                         samples[numSamples++]=t;
3016                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
3017                         target_poll(target);
3018                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3019                 } else if (target->state == TARGET_RUNNING)
3020                 {
3021                         /* We want to quickly sample the PC. */
3022                         if ((retval = target_halt(target)) != ERROR_OK)
3023                         {
3024                                 free(samples);
3025                                 return retval;
3026                         }
3027                 } else
3028                 {
3029                         command_print(cmd_ctx, "Target not halted or running");
3030                         retval = ERROR_OK;
3031                         break;
3032                 }
3033                 if (retval != ERROR_OK)
3034                 {
3035                         break;
3036                 }
3037
3038                 gettimeofday(&now, NULL);
3039                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
3040                 {
3041                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
3042                         if ((retval = target_poll(target)) != ERROR_OK)
3043                         {
3044                                 free(samples);
3045                                 return retval;
3046                         }
3047                         if (target->state == TARGET_HALTED)
3048                         {
3049                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
3050                         }
3051                         if ((retval = target_poll(target)) != ERROR_OK)
3052                         {
3053                                 free(samples);
3054                                 return retval;
3055                         }
3056                         writeGmon(samples, numSamples, args[1]);
3057                         command_print(cmd_ctx, "Wrote %s", args[1]);
3058                         break;
3059                 }
3060         }
3061         free(samples);
3062
3063         return ERROR_OK;
3064 }
3065
3066 static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t val)
3067 {
3068         char *namebuf;
3069         Jim_Obj *nameObjPtr, *valObjPtr;
3070         int result;
3071
3072         namebuf = alloc_printf("%s(%d)", varname, idx);
3073         if (!namebuf)
3074                 return JIM_ERR;
3075
3076         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3077         valObjPtr = Jim_NewIntObj(interp, val);
3078         if (!nameObjPtr || !valObjPtr)
3079         {
3080                 free(namebuf);
3081                 return JIM_ERR;
3082         }
3083
3084         Jim_IncrRefCount(nameObjPtr);
3085         Jim_IncrRefCount(valObjPtr);
3086         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3087         Jim_DecrRefCount(interp, nameObjPtr);
3088         Jim_DecrRefCount(interp, valObjPtr);
3089         free(namebuf);
3090         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3091         return result;
3092 }
3093
3094 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3095 {
3096         command_context_t *context;
3097         target_t *target;
3098
3099         context = Jim_GetAssocData(interp, "context");
3100         if (context == NULL)
3101         {
3102                 LOG_ERROR("mem2array: no command context");
3103                 return JIM_ERR;
3104         }
3105         target = get_current_target(context);
3106         if (target == NULL)
3107         {
3108                 LOG_ERROR("mem2array: no current target");
3109                 return JIM_ERR;
3110         }
3111
3112         return  target_mem2array(interp, target, argc-1, argv + 1);
3113 }
3114
3115 static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv)
3116 {
3117         long l;
3118         uint32_t width;
3119         int len;
3120         uint32_t addr;
3121         uint32_t count;
3122         uint32_t v;
3123         const char *varname;
3124         uint8_t buffer[4096];
3125         int  n, e, retval;
3126         uint32_t i;
3127
3128         /* argv[1] = name of array to receive the data
3129          * argv[2] = desired width
3130          * argv[3] = memory address
3131          * argv[4] = count of times to read
3132          */
3133         if (argc != 4) {
3134                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3135                 return JIM_ERR;
3136         }
3137         varname = Jim_GetString(argv[0], &len);
3138         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3139
3140         e = Jim_GetLong(interp, argv[1], &l);
3141         width = l;
3142         if (e != JIM_OK) {
3143                 return e;
3144         }
3145
3146         e = Jim_GetLong(interp, argv[2], &l);
3147         addr = l;
3148         if (e != JIM_OK) {
3149                 return e;
3150         }
3151         e = Jim_GetLong(interp, argv[3], &l);
3152         len = l;
3153         if (e != JIM_OK) {
3154                 return e;
3155         }
3156         switch (width) {
3157                 case 8:
3158                         width = 1;
3159                         break;
3160                 case 16:
3161                         width = 2;
3162                         break;
3163                 case 32:
3164                         width = 4;
3165                         break;
3166                 default:
3167                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3168                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3169                         return JIM_ERR;
3170         }
3171         if (len == 0) {
3172                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3173                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3174                 return JIM_ERR;
3175         }
3176         if ((addr + (len * width)) < addr) {
3177                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3178                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3179                 return JIM_ERR;
3180         }
3181         /* absurd transfer size? */
3182         if (len > 65536) {
3183                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3184                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3185                 return JIM_ERR;
3186         }
3187
3188         if ((width == 1) ||
3189                 ((width == 2) && ((addr & 1) == 0)) ||
3190                 ((width == 4) && ((addr & 3) == 0))) {
3191                 /* all is well */
3192         } else {
3193                 char buf[100];
3194                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3195                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3196                                 addr,
3197                                 width);
3198                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3199                 return JIM_ERR;
3200         }
3201
3202         /* Transfer loop */
3203
3204         /* index counter */
3205         n = 0;
3206         /* assume ok */
3207         e = JIM_OK;
3208         while (len) {
3209                 /* Slurp... in buffer size chunks */
3210
3211                 count = len; /* in objects.. */
3212                 if (count > (sizeof(buffer)/width)) {
3213                         count = (sizeof(buffer)/width);
3214                 }
3215
3216                 retval = target_read_memory(target, addr, width, count, buffer);
3217                 if (retval != ERROR_OK) {
3218                         /* BOO !*/
3219                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3220                                           (unsigned int)addr,
3221                                           (int)width,
3222                                           (int)count);
3223                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3224                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3225                         e = JIM_ERR;
3226                         len = 0;
3227                 } else {
3228                         v = 0; /* shut up gcc */
3229                         for (i = 0 ;i < count ;i++, n++) {
3230                                 switch (width) {
3231                                         case 4:
3232                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3233                                                 break;
3234                                         case 2:
3235                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3236                                                 break;
3237                                         case 1:
3238                                                 v = buffer[i] & 0x0ff;
3239                                                 break;
3240                                 }
3241                                 new_int_array_element(interp, varname, n, v);
3242                         }
3243                         len -= count;
3244                 }
3245         }
3246
3247         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3248
3249         return JIM_OK;
3250 }
3251
3252 static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t *val)
3253 {
3254         char *namebuf;
3255         Jim_Obj *nameObjPtr, *valObjPtr;
3256         int result;
3257         long l;
3258
3259         namebuf = alloc_printf("%s(%d)", varname, idx);
3260         if (!namebuf)
3261                 return JIM_ERR;
3262
3263         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3264         if (!nameObjPtr)
3265         {
3266                 free(namebuf);
3267                 return JIM_ERR;
3268         }
3269
3270         Jim_IncrRefCount(nameObjPtr);
3271         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3272         Jim_DecrRefCount(interp, nameObjPtr);
3273         free(namebuf);
3274         if (valObjPtr == NULL)
3275                 return JIM_ERR;
3276
3277         result = Jim_GetLong(interp, valObjPtr, &l);
3278         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3279         *val = l;
3280         return result;
3281 }
3282
3283 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3284 {
3285         command_context_t *context;
3286         target_t *target;
3287
3288         context = Jim_GetAssocData(interp, "context");
3289         if (context == NULL) {
3290                 LOG_ERROR("array2mem: no command context");
3291                 return JIM_ERR;
3292         }
3293         target = get_current_target(context);
3294         if (target == NULL) {
3295                 LOG_ERROR("array2mem: no current target");
3296                 return JIM_ERR;
3297         }
3298
3299         return target_array2mem(interp,target, argc-1, argv + 1);
3300 }
3301
3302 static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv)
3303 {
3304         long l;
3305         uint32_t width;
3306         int len;
3307         uint32_t addr;
3308         uint32_t count;
3309         uint32_t v;
3310         const char *varname;
3311         uint8_t buffer[4096];
3312         int  n, e, retval;
3313         uint32_t i;
3314
3315         /* argv[1] = name of array to get the data
3316          * argv[2] = desired width
3317          * argv[3] = memory address
3318          * argv[4] = count to write
3319          */
3320         if (argc != 4) {
3321                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3322                 return JIM_ERR;
3323         }
3324         varname = Jim_GetString(argv[0], &len);
3325         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3326
3327         e = Jim_GetLong(interp, argv[1], &l);
3328         width = l;
3329         if (e != JIM_OK) {
3330                 return e;
3331         }
3332
3333         e = Jim_GetLong(interp, argv[2], &l);
3334         addr = l;
3335         if (e != JIM_OK) {
3336                 return e;
3337         }
3338         e = Jim_GetLong(interp, argv[3], &l);
3339         len = l;
3340         if (e != JIM_OK) {
3341                 return e;
3342         }
3343         switch (width) {
3344                 case 8:
3345                         width = 1;
3346                         break;
3347                 case 16:
3348                         width = 2;
3349                         break;
3350                 case 32:
3351                         width = 4;
3352                         break;
3353                 default:
3354                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3355                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3356                         return JIM_ERR;
3357         }
3358         if (len == 0) {
3359                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3360                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL);
3361                 return JIM_ERR;
3362         }
3363         if ((addr + (len * width)) < addr) {
3364                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3365                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL);
3366                 return JIM_ERR;
3367         }
3368         /* absurd transfer size? */
3369         if (len > 65536) {
3370                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3371                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL);
3372                 return JIM_ERR;
3373         }
3374
3375         if ((width == 1) ||
3376                 ((width == 2) && ((addr & 1) == 0)) ||
3377                 ((width == 4) && ((addr & 3) == 0))) {
3378                 /* all is well */
3379         } else {
3380                 char buf[100];
3381                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3382                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3383                                 (unsigned int)addr,
3384                                 (int)width);
3385                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3386                 return JIM_ERR;
3387         }
3388
3389         /* Transfer loop */
3390
3391         /* index counter */
3392         n = 0;
3393         /* assume ok */
3394         e = JIM_OK;
3395         while (len) {
3396                 /* Slurp... in buffer size chunks */
3397
3398                 count = len; /* in objects.. */
3399                 if (count > (sizeof(buffer)/width)) {
3400                         count = (sizeof(buffer)/width);
3401                 }
3402
3403                 v = 0; /* shut up gcc */
3404                 for (i = 0 ;i < count ;i++, n++) {
3405                         get_int_array_element(interp, varname, n, &v);
3406                         switch (width) {
3407                         case 4:
3408                                 target_buffer_set_u32(target, &buffer[i*width], v);
3409                                 break;
3410                         case 2:
3411                                 target_buffer_set_u16(target, &buffer[i*width], v);
3412                                 break;
3413                         case 1:
3414                                 buffer[i] = v & 0x0ff;
3415                                 break;
3416                         }
3417                 }
3418                 len -= count;
3419
3420                 retval = target_write_memory(target, addr, width, count, buffer);
3421                 if (retval != ERROR_OK) {
3422                         /* BOO !*/
3423                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3424                                           (unsigned int)addr,
3425                                           (int)width,
3426                                           (int)count);
3427                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3428                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3429                         e = JIM_ERR;
3430                         len = 0;
3431                 }
3432         }
3433
3434         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3435
3436         return JIM_OK;
3437 }
3438
3439 void target_all_handle_event(enum target_event e)
3440 {
3441         target_t *target;
3442
3443         LOG_DEBUG("**all*targets: event: %d, %s",
3444                            (int)e,
3445                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name);
3446
3447         target = all_targets;
3448         while (target) {
3449                 target_handle_event(target, e);
3450                 target = target->next;
3451         }
3452 }
3453
3454
3455 /* FIX? should we propagate errors here rather than printing them
3456  * and continuing?
3457  */
3458 void target_handle_event(target_t *target, enum target_event e)
3459 {
3460         target_event_action_t *teap;
3461
3462         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3463                 if (teap->event == e) {
3464                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3465                                            target->target_number,
3466                                            target->cmd_name,
3467                                            target_get_name(target),
3468                                            e,
3469                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3470                                            Jim_GetString(teap->body, NULL));
3471                         if (Jim_EvalObj(interp, teap->body) != JIM_OK)
3472                         {
3473                                 Jim_PrintErrorMessage(interp);
3474                         }
3475                 }
3476         }
3477 }
3478
3479 enum target_cfg_param {
3480         TCFG_TYPE,
3481         TCFG_EVENT,
3482         TCFG_WORK_AREA_VIRT,
3483         TCFG_WORK_AREA_PHYS,
3484         TCFG_WORK_AREA_SIZE,
3485         TCFG_WORK_AREA_BACKUP,
3486         TCFG_ENDIAN,
3487         TCFG_VARIANT,
3488         TCFG_CHAIN_POSITION,
3489 };
3490
3491 static Jim_Nvp nvp_config_opts[] = {
3492         { .name = "-type",             .value = TCFG_TYPE },
3493         { .name = "-event",            .value = TCFG_EVENT },
3494         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3495         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3496         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3497         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3498         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3499         { .name = "-variant",          .value = TCFG_VARIANT },
3500         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3501
3502         { .name = NULL, .value = -1 }
3503 };
3504
3505 static int target_configure(Jim_GetOptInfo *goi, target_t *target)
3506 {
3507         Jim_Nvp *n;
3508         Jim_Obj *o;
3509         jim_wide w;
3510         char *cp;
3511         int e;
3512
3513         /* parse config or cget options ... */
3514         while (goi->argc > 0) {
3515                 Jim_SetEmptyResult(goi->interp);
3516                 /* Jim_GetOpt_Debug(goi); */
3517
3518                 if (target->type->target_jim_configure) {
3519                         /* target defines a configure function */
3520                         /* target gets first dibs on parameters */
3521                         e = (*(target->type->target_jim_configure))(target, goi);
3522                         if (e == JIM_OK) {
3523                                 /* more? */
3524                                 continue;
3525                         }
3526                         if (e == JIM_ERR) {
3527                                 /* An error */
3528                                 return e;
3529                         }
3530                         /* otherwise we 'continue' below */
3531                 }
3532                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
3533                 if (e != JIM_OK) {
3534                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
3535                         return e;
3536                 }
3537                 switch (n->value) {
3538                 case TCFG_TYPE:
3539                         /* not setable */
3540                         if (goi->isconfigure) {
3541                                 Jim_SetResult_sprintf(goi->interp, "not setable: %s", n->name);
3542                                 return JIM_ERR;
3543                         } else {
3544                         no_params:
3545                                 if (goi->argc != 0) {
3546                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "NO PARAMS");
3547                                         return JIM_ERR;
3548                                 }
3549                         }
3550                         Jim_SetResultString(goi->interp, target_get_name(target), -1);
3551                         /* loop for more */
3552                         break;
3553                 case TCFG_EVENT:
3554                         if (goi->argc == 0) {
3555                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
3556                                 return JIM_ERR;
3557                         }
3558
3559                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
3560                         if (e != JIM_OK) {
3561                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
3562                                 return e;
3563                         }
3564
3565                         if (goi->isconfigure) {
3566                                 if (goi->argc != 1) {
3567                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
3568                                         return JIM_ERR;
3569                                 }
3570                         } else {
3571                                 if (goi->argc != 0) {
3572                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
3573                                         return JIM_ERR;
3574                                 }
3575                         }
3576
3577                         {
3578                                 target_event_action_t *teap;
3579
3580                                 teap = target->event_action;
3581                                 /* replace existing? */
3582                                 while (teap) {
3583                                         if (teap->event == (enum target_event)n->value) {
3584                                                 break;
3585                                         }
3586                                         teap = teap->next;
3587                                 }
3588
3589                                 if (goi->isconfigure) {
3590                                         bool replace = true;
3591                                         if (teap == NULL) {
3592                                                 /* create new */
3593                                                 teap = calloc(1, sizeof(*teap));
3594                                                 replace = false;
3595                                         }
3596                                         teap->event = n->value;
3597                                         Jim_GetOpt_Obj(goi, &o);
3598                                         if (teap->body) {
3599                                                 Jim_DecrRefCount(interp, teap->body);
3600                                         }
3601                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
3602                                         /*
3603                                          * FIXME:
3604                                          *     Tcl/TK - "tk events" have a nice feature.
3605                                          *     See the "BIND" command.
3606                                          *    We should support that here.
3607                                          *     You can specify %X and %Y in the event code.
3608                                          *     The idea is: %T - target name.
3609                                          *     The idea is: %N - target number
3610                                          *     The idea is: %E - event name.
3611                                          */
3612                                         Jim_IncrRefCount(teap->body);
3613
3614                                         if (!replace)
3615                                         {
3616                                                 /* add to head of event list */
3617                                                 teap->next = target->event_action;
3618                                                 target->event_action = teap;
3619                                         }
3620                                         Jim_SetEmptyResult(goi->interp);
3621                                 } else {
3622                                         /* get */
3623                                         if (teap == NULL) {
3624                                                 Jim_SetEmptyResult(goi->interp);
3625                                         } else {
3626                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
3627                                         }
3628                                 }
3629                         }
3630                         /* loop for more */
3631                         break;
3632
3633                 case TCFG_WORK_AREA_VIRT:
3634                         if (goi->isconfigure) {
3635                                 target_free_all_working_areas(target);
3636                                 e = Jim_GetOpt_Wide(goi, &w);
3637                                 if (e != JIM_OK) {
3638                                         return e;
3639                                 }
3640                                 target->working_area_virt = w;
3641                         } else {
3642                                 if (goi->argc != 0) {
3643                                         goto no_params;
3644                                 }
3645                         }
3646                         Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
3647                         /* loop for more */
3648                         break;
3649
3650                 case TCFG_WORK_AREA_PHYS:
3651                         if (goi->isconfigure) {
3652                                 target_free_all_working_areas(target);
3653                                 e = Jim_GetOpt_Wide(goi, &w);
3654                                 if (e != JIM_OK) {
3655                                         return e;
3656                                 }
3657                                 target->working_area_phys = w;
3658                         } else {
3659                                 if (goi->argc != 0) {
3660                                         goto no_params;
3661                                 }
3662                         }
3663                         Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
3664                         /* loop for more */
3665                         break;
3666
3667                 case TCFG_WORK_AREA_SIZE:
3668                         if (goi->isconfigure) {
3669                                 target_free_all_working_areas(target);
3670                                 e = Jim_GetOpt_Wide(goi, &w);
3671                                 if (e != JIM_OK) {
3672                                         return e;
3673                                 }
3674                                 target->working_area_size = w;
3675                         } else {
3676                                 if (goi->argc != 0) {
3677                                         goto no_params;
3678                                 }
3679                         }
3680                         Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_size));
3681                         /* loop for more */
3682                         break;
3683
3684                 case TCFG_WORK_AREA_BACKUP:
3685                         if (goi->isconfigure) {
3686                                 target_free_all_working_areas(target);
3687                                 e = Jim_GetOpt_Wide(goi, &w);
3688                                 if (e != JIM_OK) {
3689                                         return e;
3690                                 }
3691                                 /* make this exactly 1 or 0 */
3692                                 target->backup_working_area = (!!w);
3693                         } else {
3694                                 if (goi->argc != 0) {
3695                                         goto no_params;
3696                                 }
3697                         }
3698                         Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
3699                         /* loop for more e*/
3700                         break;
3701
3702                 case TCFG_ENDIAN:
3703                         if (goi->isconfigure) {
3704                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
3705                                 if (e != JIM_OK) {
3706                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
3707                                         return e;
3708                                 }
3709                                 target->endianness = n->value;
3710                         } else {
3711                                 if (goi->argc != 0) {
3712                                         goto no_params;
3713                                 }
3714                         }
3715                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
3716                         if (n->name == NULL) {
3717                                 target->endianness = TARGET_LITTLE_ENDIAN;
3718                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
3719                         }
3720                         Jim_SetResultString(goi->interp, n->name, -1);
3721                         /* loop for more */
3722                         break;
3723
3724                 case TCFG_VARIANT:
3725                         if (goi->isconfigure) {
3726                                 if (goi->argc < 1) {
3727                                         Jim_SetResult_sprintf(goi->interp,
3728                                                                                    "%s ?STRING?",
3729                                                                                    n->name);
3730                                         return JIM_ERR;
3731                                 }
3732                                 if (target->variant) {
3733                                         free((void *)(target->variant));
3734                                 }
3735                                 e = Jim_GetOpt_String(goi, &cp, NULL);
3736                                 target->variant = strdup(cp);
3737                         } else {
3738                                 if (goi->argc != 0) {
3739                                         goto no_params;
3740                                 }
3741                         }
3742                         Jim_SetResultString(goi->interp, target->variant,-1);
3743                         /* loop for more */
3744                         break;
3745                 case TCFG_CHAIN_POSITION:
3746                         if (goi->isconfigure) {
3747                                 Jim_Obj *o;
3748                                 jtag_tap_t *tap;
3749                                 target_free_all_working_areas(target);
3750                                 e = Jim_GetOpt_Obj(goi, &o);
3751                                 if (e != JIM_OK) {
3752                                         return e;
3753                                 }
3754                                 tap = jtag_tap_by_jim_obj(goi->interp, o);
3755                                 if (tap == NULL) {
3756                                         return JIM_ERR;
3757                                 }
3758                                 /* make this exactly 1 or 0 */
3759                                 target->tap = tap;
3760                         } else {
3761                                 if (goi->argc != 0) {
3762                                         goto no_params;
3763                                 }
3764                         }
3765                         Jim_SetResultString(interp, target->tap->dotted_name, -1);
3766                         /* loop for more e*/
3767                         break;
3768                 }
3769         } /* while (goi->argc) */
3770
3771
3772                 /* done - we return */
3773         return JIM_OK;
3774 }
3775
3776 /** this is the 'tcl' handler for the target specific command */
3777 static int tcl_target_func(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3778 {
3779         Jim_GetOptInfo goi;
3780         jim_wide a,b,c;
3781         int x,y,z;
3782         uint8_t  target_buf[32];
3783         Jim_Nvp *n;
3784         target_t *target;
3785         struct command_context_s *cmd_ctx;
3786         int e;
3787
3788         enum {
3789                 TS_CMD_CONFIGURE,
3790                 TS_CMD_CGET,
3791
3792                 TS_CMD_MWW, TS_CMD_MWH, TS_CMD_MWB,
3793                 TS_CMD_MDW, TS_CMD_MDH, TS_CMD_MDB,
3794                 TS_CMD_MRW, TS_CMD_MRH, TS_CMD_MRB,
3795                 TS_CMD_MEM2ARRAY, TS_CMD_ARRAY2MEM,
3796                 TS_CMD_EXAMINE,
3797                 TS_CMD_POLL,
3798                 TS_CMD_RESET,
3799                 TS_CMD_HALT,
3800                 TS_CMD_WAITSTATE,
3801                 TS_CMD_EVENTLIST,
3802                 TS_CMD_CURSTATE,
3803                 TS_CMD_INVOKE_EVENT,
3804         };
3805
3806         static const Jim_Nvp target_options[] = {
3807                 { .name = "configure", .value = TS_CMD_CONFIGURE },
3808                 { .name = "cget", .value = TS_CMD_CGET },
3809                 { .name = "mww", .value = TS_CMD_MWW },
3810                 { .name = "mwh", .value = TS_CMD_MWH },
3811                 { .name = "mwb", .value = TS_CMD_MWB },
3812                 { .name = "mdw", .value = TS_CMD_MDW },
3813                 { .name = "mdh", .value = TS_CMD_MDH },
3814                 { .name = "mdb", .value = TS_CMD_MDB },
3815                 { .name = "mem2array", .value = TS_CMD_MEM2ARRAY },
3816                 { .name = "array2mem", .value = TS_CMD_ARRAY2MEM },
3817                 { .name = "eventlist", .value = TS_CMD_EVENTLIST },
3818                 { .name = "curstate",  .value = TS_CMD_CURSTATE },
3819
3820                 { .name = "arp_examine", .value = TS_CMD_EXAMINE },
3821                 { .name = "arp_poll", .value = TS_CMD_POLL },
3822                 { .name = "arp_reset", .value = TS_CMD_RESET },
3823                 { .name = "arp_halt", .value = TS_CMD_HALT },
3824                 { .name = "arp_waitstate", .value = TS_CMD_WAITSTATE },
3825                 { .name = "invoke-event", .value = TS_CMD_INVOKE_EVENT },
3826
3827                 { .name = NULL, .value = -1 },
3828         };
3829
3830         /* go past the "command" */
3831         Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
3832
3833         target = Jim_CmdPrivData(goi.interp);
3834         cmd_ctx = Jim_GetAssocData(goi.interp, "context");
3835
3836         /* commands here are in an NVP table */
3837         e = Jim_GetOpt_Nvp(&goi, target_options, &n);
3838         if (e != JIM_OK) {
3839                 Jim_GetOpt_NvpUnknown(&goi, target_options, 0);
3840                 return e;
3841         }
3842         /* Assume blank result */
3843         Jim_SetEmptyResult(goi.interp);
3844
3845         switch (n->value) {
3846         case TS_CMD_CONFIGURE:
3847                 if (goi.argc < 2) {
3848                         Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv, "missing: -option VALUE ...");
3849                         return JIM_ERR;
3850                 }
3851                 goi.isconfigure = 1;
3852                 return target_configure(&goi, target);
3853         case TS_CMD_CGET:
3854                 // some things take params
3855                 if (goi.argc < 1) {
3856                         Jim_WrongNumArgs(goi.interp, 0, goi.argv, "missing: ?-option?");
3857                         return JIM_ERR;
3858                 }
3859                 goi.isconfigure = 0;
3860                 return target_configure(&goi, target);
3861                 break;
3862         case TS_CMD_MWW:
3863         case TS_CMD_MWH:
3864         case TS_CMD_MWB:
3865                 /* argv[0] = cmd
3866                  * argv[1] = address
3867                  * argv[2] = data
3868                  * argv[3] = optional count.
3869                  */
3870
3871                 if ((goi.argc == 2) || (goi.argc == 3)) {
3872                         /* all is well */
3873                 } else {
3874                 mwx_error:
3875                         Jim_SetResult_sprintf(goi.interp, "expected: %s ADDR DATA [COUNT]", n->name);
3876                         return JIM_ERR;
3877                 }
3878
3879                 e = Jim_GetOpt_Wide(&goi, &a);
3880                 if (e != JIM_OK) {
3881                         goto mwx_error;
3882                 }
3883
3884                 e = Jim_GetOpt_Wide(&goi, &b);
3885                 if (e != JIM_OK) {
3886                         goto mwx_error;
3887                 }
3888                 if (goi.argc == 3) {
3889                         e = Jim_GetOpt_Wide(&goi, &c);
3890                         if (e != JIM_OK) {
3891                                 goto mwx_error;
3892                         }
3893                 } else {
3894                         c = 1;
3895                 }
3896
3897                 switch (n->value) {
3898                 case TS_CMD_MWW:
3899                         target_buffer_set_u32(target, target_buf, b);
3900                         b = 4;
3901                         break;
3902                 case TS_CMD_MWH:
3903                         target_buffer_set_u16(target, target_buf, b);
3904                         b = 2;
3905                         break;
3906                 case TS_CMD_MWB:
3907                         target_buffer_set_u8(target, target_buf, b);
3908                         b = 1;
3909                         break;
3910                 }
3911                 for (x = 0 ; x < c ; x++) {
3912                         e = target_write_memory(target, a, b, 1, target_buf);
3913                         if (e != ERROR_OK) {
3914                                 Jim_SetResult_sprintf(interp, "Error writing @ 0x%08x: %d\n", (int)(a), e);
3915                                 return JIM_ERR;
3916                         }
3917                         /* b = width */
3918                         a = a + b;
3919                 }
3920                 return JIM_OK;
3921                 break;
3922
3923                 /* display */
3924         case TS_CMD_MDW:
3925         case TS_CMD_MDH:
3926         case TS_CMD_MDB:
3927                 /* argv[0] = command
3928                  * argv[1] = address
3929                  * argv[2] = optional count
3930                  */
3931                 if ((goi.argc == 2) || (goi.argc == 3)) {
3932                         Jim_SetResult_sprintf(goi.interp, "expected: %s ADDR [COUNT]", n->name);
3933                         return JIM_ERR;
3934                 }
3935                 e = Jim_GetOpt_Wide(&goi, &a);
3936                 if (e != JIM_OK) {
3937                         return JIM_ERR;
3938                 }
3939                 if (goi.argc) {
3940                         e = Jim_GetOpt_Wide(&goi, &c);
3941                         if (e != JIM_OK) {
3942                                 return JIM_ERR;
3943                         }
3944                 } else {
3945                         c = 1;
3946                 }
3947                 b = 1; /* shut up gcc */
3948                 switch (n->value) {
3949                 case TS_CMD_MDW:
3950                         b =  4;
3951                         break;
3952                 case TS_CMD_MDH:
3953                         b = 2;
3954                         break;
3955                 case TS_CMD_MDB:
3956                         b = 1;
3957                         break;
3958                 }
3959
3960                 /* convert to "bytes" */
3961                 c = c * b;
3962                 /* count is now in 'BYTES' */
3963                 while (c > 0) {
3964                         y = c;
3965                         if (y > 16) {
3966                                 y = 16;
3967                         }
3968                         e = target_read_memory(target, a, b, y / b, target_buf);
3969                         if (e != ERROR_OK) {
3970                                 Jim_SetResult_sprintf(interp, "error reading target @ 0x%08lx", (int)(a));
3971                                 return JIM_ERR;
3972                         }
3973
3974                         Jim_fprintf(interp, interp->cookie_stdout, "0x%08x ", (int)(a));
3975                         switch (b) {
3976                         case 4:
3977                                 for (x = 0 ; (x < 16) && (x < y) ; x += 4) {
3978                                         z = target_buffer_get_u32(target, &(target_buf[ x * 4 ]));
3979                                         Jim_fprintf(interp, interp->cookie_stdout, "%08x ", (int)(z));
3980                                 }
3981                                 for (; (x < 16) ; x += 4) {
3982                                         Jim_fprintf(interp, interp->cookie_stdout, "         ");
3983                                 }
3984                                 break;
3985                         case 2:
3986                                 for (x = 0 ; (x < 16) && (x < y) ; x += 2) {
3987                                         z = target_buffer_get_u16(target, &(target_buf[ x * 2 ]));
3988                                         Jim_fprintf(interp, interp->cookie_stdout, "%04x ", (int)(z));
3989                                 }
3990                                 for (; (x < 16) ; x += 2) {
3991                                         Jim_fprintf(interp, interp->cookie_stdout, "     ");
3992                                 }
3993                                 break;
3994                         case 1:
3995                         default:
3996                                 for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
3997                                         z = target_buffer_get_u8(target, &(target_buf[ x * 4 ]));
3998                                         Jim_fprintf(interp, interp->cookie_stdout, "%02x ", (int)(z));
3999                                 }
4000                                 for (; (x < 16) ; x += 1) {
4001                                         Jim_fprintf(interp, interp->cookie_stdout, "   ");
4002                                 }
4003                                 break;
4004                         }
4005                         /* ascii-ify the bytes */
4006                         for (x = 0 ; x < y ; x++) {
4007                                 if ((target_buf[x] >= 0x20) &&
4008                                         (target_buf[x] <= 0x7e)) {
4009                                         /* good */
4010                                 } else {
4011                                         /* smack it */
4012                                         target_buf[x] = '.';
4013                                 }
4014                         }
4015                         /* space pad  */
4016                         while (x < 16) {
4017                                 target_buf[x] = ' ';
4018                                 x++;
4019                         }
4020                         /* terminate */
4021                         target_buf[16] = 0;
4022                         /* print - with a newline */
4023                         Jim_fprintf(interp, interp->cookie_stdout, "%s\n", target_buf);
4024                         /* NEXT... */
4025                         c -= 16;
4026                         a += 16;
4027                 }
4028                 return JIM_OK;
4029         case TS_CMD_MEM2ARRAY:
4030                 return target_mem2array(goi.interp, target, goi.argc, goi.argv);
4031                 break;
4032         case TS_CMD_ARRAY2MEM:
4033                 return target_array2mem(goi.interp, target, goi.argc, goi.argv);
4034                 break;
4035         case TS_CMD_EXAMINE:
4036                 if (goi.argc) {
4037                         Jim_WrongNumArgs(goi.interp, 2, argv, "[no parameters]");
4038                         return JIM_ERR;
4039                 }
4040                 if (!target->tap->enabled)
4041                         goto err_tap_disabled;
4042                 e = target->type->examine(target);
4043                 if (e != ERROR_OK) {
4044                         Jim_SetResult_sprintf(interp, "examine-fails: %d", e);
4045                         return JIM_ERR;
4046                 }
4047                 return JIM_OK;
4048         case TS_CMD_POLL:
4049                 if (goi.argc) {
4050                         Jim_WrongNumArgs(goi.interp, 2, argv, "[no parameters]");
4051                         return JIM_ERR;
4052                 }
4053                 if (!target->tap->enabled)
4054                         goto err_tap_disabled;
4055                 if (!(target_was_examined(target))) {
4056                         e = ERROR_TARGET_NOT_EXAMINED;
4057                 } else {
4058                         e = target->type->poll(target);
4059                 }
4060                 if (e != ERROR_OK) {
4061                         Jim_SetResult_sprintf(interp, "poll-fails: %d", e);
4062                         return JIM_ERR;
4063                 } else {
4064                         return JIM_OK;
4065                 }
4066                 break;
4067         case TS_CMD_RESET:
4068                 if (goi.argc != 2) {
4069                         Jim_WrongNumArgs(interp, 2, argv,
4070                                         "([tT]|[fF]|assert|deassert) BOOL");
4071                         return JIM_ERR;
4072                 }
4073                 e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4074                 if (e != JIM_OK) {
4075                         Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4076                         return e;
4077                 }
4078                 /* the halt or not param */
4079                 e = Jim_GetOpt_Wide(&goi, &a);
4080                 if (e != JIM_OK) {
4081                         return e;
4082                 }
4083                 if (!target->tap->enabled)
4084                         goto err_tap_disabled;
4085                 if (!target->type->assert_reset
4086                                 || !target->type->deassert_reset) {
4087                         Jim_SetResult_sprintf(interp,
4088                                         "No target-specific reset for %s",
4089                                         target->cmd_name);
4090                         return JIM_ERR;
4091                 }
4092                 /* determine if we should halt or not. */
4093                 target->reset_halt = !!a;
4094                 /* When this happens - all workareas are invalid. */
4095                 target_free_all_working_areas_restore(target, 0);
4096
4097                 /* do the assert */
4098                 if (n->value == NVP_ASSERT) {
4099                         e = target->type->assert_reset(target);
4100                 } else {
4101                         e = target->type->deassert_reset(target);
4102                 }
4103                 return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4104         case TS_CMD_HALT:
4105                 if (goi.argc) {
4106                         Jim_WrongNumArgs(goi.interp, 0, argv, "halt [no parameters]");
4107                         return JIM_ERR;
4108                 }
4109                 if (!target->tap->enabled)
4110                         goto err_tap_disabled;
4111                 e = target->type->halt(target);
4112                 return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4113         case TS_CMD_WAITSTATE:
4114                 /* params:  <name>  statename timeoutmsecs */
4115                 if (goi.argc != 2) {
4116                         Jim_SetResult_sprintf(goi.interp, "%s STATENAME TIMEOUTMSECS", n->name);
4117                         return JIM_ERR;
4118                 }
4119                 e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4120                 if (e != JIM_OK) {
4121                         Jim_GetOpt_NvpUnknown(&goi, nvp_target_state,1);
4122                         return e;
4123                 }
4124                 e = Jim_GetOpt_Wide(&goi, &a);
4125                 if (e != JIM_OK) {
4126                         return e;
4127                 }
4128                 if (!target->tap->enabled)
4129                         goto err_tap_disabled;
4130                 e = target_wait_state(target, n->value, a);
4131                 if (e != ERROR_OK) {
4132                         Jim_SetResult_sprintf(goi.interp,
4133                                                                    "target: %s wait %s fails (%d) %s",
4134                                                                    target->cmd_name,
4135                                                                    n->name,
4136                                                                    e, target_strerror_safe(e));
4137                         return JIM_ERR;
4138                 } else {
4139                         return JIM_OK;
4140                 }
4141         case TS_CMD_EVENTLIST:
4142                 /* List for human, Events defined for this target.
4143                  * scripts/programs should use 'name cget -event NAME'
4144                  */
4145                 {
4146                         target_event_action_t *teap;
4147                         teap = target->event_action;
4148                         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4149                                                    target->target_number,
4150                                                    target->cmd_name);
4151                         command_print(cmd_ctx, "%-25s | Body", "Event");
4152                         command_print(cmd_ctx, "------------------------- | ----------------------------------------");
4153                         while (teap) {
4154                                 command_print(cmd_ctx,
4155                                                            "%-25s | %s",
4156                                                            Jim_Nvp_value2name_simple(nvp_target_event, teap->event)->name,
4157                                                            Jim_GetString(teap->body, NULL));
4158                                 teap = teap->next;
4159                         }
4160                         command_print(cmd_ctx, "***END***");
4161                         return JIM_OK;
4162                 }
4163         case TS_CMD_CURSTATE:
4164                 if (goi.argc != 0) {
4165                         Jim_WrongNumArgs(goi.interp, 0, argv, "[no parameters]");
4166                         return JIM_ERR;
4167                 }
4168                 Jim_SetResultString(goi.interp,
4169                                                         target_state_name( target ),
4170                                                         -1);
4171                 return JIM_OK;
4172         case TS_CMD_INVOKE_EVENT:
4173                 if (goi.argc != 1) {
4174                         Jim_SetResult_sprintf(goi.interp, "%s ?EVENTNAME?",n->name);
4175                         return JIM_ERR;
4176                 }
4177                 e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4178                 if (e != JIM_OK) {
4179                         Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4180                         return e;
4181                 }
4182                 target_handle_event(target, n->value);
4183                 return JIM_OK;
4184         }
4185         return JIM_ERR;
4186
4187 err_tap_disabled:
4188         Jim_SetResult_sprintf(interp, "[TAP is disabled]");
4189         return JIM_ERR;
4190 }
4191
4192 static int target_create(Jim_GetOptInfo *goi)
4193 {
4194         Jim_Obj *new_cmd;
4195         Jim_Cmd *cmd;
4196         const char *cp;
4197         char *cp2;
4198         int e;
4199         int x;
4200         target_t *target;
4201         struct command_context_s *cmd_ctx;
4202
4203         cmd_ctx = Jim_GetAssocData(goi->interp, "context");
4204         if (goi->argc < 3) {
4205                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4206                 return JIM_ERR;
4207         }
4208
4209         /* COMMAND */
4210         Jim_GetOpt_Obj(goi, &new_cmd);
4211         /* does this command exist? */
4212         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4213         if (cmd) {
4214                 cp = Jim_GetString(new_cmd, NULL);
4215                 Jim_SetResult_sprintf(goi->interp, "Command/target: %s Exists", cp);
4216                 return JIM_ERR;
4217         }
4218
4219         /* TYPE */
4220         e = Jim_GetOpt_String(goi, &cp2, NULL);
4221         cp = cp2;
4222         /* now does target type exist */
4223         for (x = 0 ; target_types[x] ; x++) {
4224                 if (0 == strcmp(cp, target_types[x]->name)) {
4225                         /* found */
4226                         break;
4227                 }
4228         }
4229         if (target_types[x] == NULL) {
4230                 Jim_SetResult_sprintf(goi->interp, "Unknown target type %s, try one of ", cp);
4231                 for (x = 0 ; target_types[x] ; x++) {
4232                         if (target_types[x + 1]) {
4233                                 Jim_AppendStrings(goi->interp,
4234                                                                    Jim_GetResult(goi->interp),
4235                                                                    target_types[x]->name,
4236                                                                    ", ", NULL);
4237                         } else {
4238                                 Jim_AppendStrings(goi->interp,
4239                                                                    Jim_GetResult(goi->interp),
4240                                                                    " or ",
4241                                                                    target_types[x]->name,NULL);
4242                         }
4243                 }
4244                 return JIM_ERR;
4245         }
4246
4247         /* Create it */
4248         target = calloc(1,sizeof(target_t));
4249         /* set target number */
4250         target->target_number = new_target_number();
4251
4252         /* allocate memory for each unique target type */
4253         target->type = (target_type_t*)calloc(1,sizeof(target_type_t));
4254
4255         memcpy(target->type, target_types[x], sizeof(target_type_t));
4256
4257         /* will be set by "-endian" */
4258         target->endianness = TARGET_ENDIAN_UNKNOWN;
4259
4260         target->working_area        = 0x0;
4261         target->working_area_size   = 0x0;
4262         target->working_areas       = NULL;
4263         target->backup_working_area = 0;
4264
4265         target->state               = TARGET_UNKNOWN;
4266         target->debug_reason        = DBG_REASON_UNDEFINED;
4267         target->reg_cache           = NULL;
4268         target->breakpoints         = NULL;
4269         target->watchpoints         = NULL;
4270         target->next                = NULL;
4271         target->arch_info           = NULL;
4272
4273         target->display             = 1;
4274
4275         target->halt_issued                     = false;
4276
4277         /* initialize trace information */
4278         target->trace_info = malloc(sizeof(trace_t));
4279         target->trace_info->num_trace_points         = 0;
4280         target->trace_info->trace_points_size        = 0;
4281         target->trace_info->trace_points             = NULL;
4282         target->trace_info->trace_history_size       = 0;
4283         target->trace_info->trace_history            = NULL;
4284         target->trace_info->trace_history_pos        = 0;
4285         target->trace_info->trace_history_overflowed = 0;
4286
4287         target->dbgmsg          = NULL;
4288         target->dbg_msg_enabled = 0;
4289
4290         target->endianness = TARGET_ENDIAN_UNKNOWN;
4291
4292         /* Do the rest as "configure" options */
4293         goi->isconfigure = 1;
4294         e = target_configure(goi, target);
4295
4296         if (target->tap == NULL)
4297         {
4298                 Jim_SetResultString(interp, "-chain-position required when creating target", -1);
4299                 e = JIM_ERR;
4300         }
4301
4302         if (e != JIM_OK) {
4303                 free(target->type);
4304                 free(target);
4305                 return e;
4306         }
4307
4308         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
4309                 /* default endian to little if not specified */
4310                 target->endianness = TARGET_LITTLE_ENDIAN;
4311         }
4312
4313         /* incase variant is not set */
4314         if (!target->variant)
4315                 target->variant = strdup("");
4316
4317         /* create the target specific commands */
4318         if (target->type->register_commands) {
4319                 (*(target->type->register_commands))(cmd_ctx);
4320         }
4321         if (target->type->target_create) {
4322                 (*(target->type->target_create))(target, goi->interp);
4323         }
4324
4325         /* append to end of list */
4326         {
4327                 target_t **tpp;
4328                 tpp = &(all_targets);
4329                 while (*tpp) {
4330                         tpp = &((*tpp)->next);
4331                 }
4332                 *tpp = target;
4333         }
4334
4335         cp = Jim_GetString(new_cmd, NULL);
4336         target->cmd_name = strdup(cp);
4337
4338         /* now - create the new target name command */
4339         e = Jim_CreateCommand(goi->interp,
4340                                                    /* name */
4341                                                    cp,
4342                                                    tcl_target_func, /* C function */
4343                                                    target, /* private data */
4344                                                    NULL); /* no del proc */
4345
4346         return e;
4347 }
4348
4349 static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4350 {
4351         int x,r,e;
4352         jim_wide w;
4353         struct command_context_s *cmd_ctx;
4354         target_t *target;
4355         Jim_GetOptInfo goi;
4356         enum tcmd {
4357                 /* TG = target generic */
4358                 TG_CMD_CREATE,
4359                 TG_CMD_TYPES,
4360                 TG_CMD_NAMES,
4361                 TG_CMD_CURRENT,
4362                 TG_CMD_NUMBER,
4363                 TG_CMD_COUNT,
4364         };
4365         const char *target_cmds[] = {
4366                 "create", "types", "names", "current", "number",
4367                 "count",
4368                 NULL /* terminate */
4369         };
4370
4371         LOG_DEBUG("Target command params:");
4372         LOG_DEBUG("%s", Jim_Debug_ArgvString(interp, argc, argv));
4373
4374         cmd_ctx = Jim_GetAssocData(interp, "context");
4375
4376         Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
4377
4378         if (goi.argc == 0) {
4379                 Jim_WrongNumArgs(interp, 1, argv, "missing: command ...");
4380                 return JIM_ERR;
4381         }
4382
4383         /* Jim_GetOpt_Debug(&goi); */
4384         r = Jim_GetOpt_Enum(&goi, target_cmds, &x);
4385         if (r != JIM_OK) {
4386                 return r;
4387         }
4388
4389         switch (x) {
4390         default:
4391                 Jim_Panic(goi.interp,"Why am I here?");
4392                 return JIM_ERR;
4393         case TG_CMD_CURRENT:
4394                 if (goi.argc != 0) {
4395                         Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
4396                         return JIM_ERR;
4397                 }
4398                 Jim_SetResultString(goi.interp, get_current_target(cmd_ctx)->cmd_name, -1);
4399                 return JIM_OK;
4400         case TG_CMD_TYPES:
4401                 if (goi.argc != 0) {
4402                         Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
4403                         return JIM_ERR;
4404                 }
4405                 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
4406                 for (x = 0 ; target_types[x] ; x++) {
4407                         Jim_ListAppendElement(goi.interp,
4408                                                                    Jim_GetResult(goi.interp),
4409                                                                    Jim_NewStringObj(goi.interp, target_types[x]->name, -1));
4410                 }
4411                 return JIM_OK;
4412         case TG_CMD_NAMES:
4413                 if (goi.argc != 0) {
4414                         Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
4415                         return JIM_ERR;
4416                 }
4417                 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
4418                 target = all_targets;
4419                 while (target) {
4420                         Jim_ListAppendElement(goi.interp,
4421                                                                    Jim_GetResult(goi.interp),
4422                                                                    Jim_NewStringObj(goi.interp, target->cmd_name, -1));
4423                         target = target->next;
4424                 }
4425                 return JIM_OK;
4426         case TG_CMD_CREATE:
4427                 if (goi.argc < 3) {
4428                         Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv, "?name  ... config options ...");
4429                         return JIM_ERR;
4430                 }
4431                 return target_create(&goi);
4432                 break;
4433         case TG_CMD_NUMBER:
4434                 /* It's OK to remove this mechanism sometime after August 2010 or so */
4435                 LOG_WARNING("don't use numbers as target identifiers; use names");
4436                 if (goi.argc != 1) {
4437                         Jim_SetResult_sprintf(goi.interp, "expected: target number ?NUMBER?");
4438                         return JIM_ERR;
4439                 }
4440                 e = Jim_GetOpt_Wide(&goi, &w);
4441                 if (e != JIM_OK) {
4442                         return JIM_ERR;
4443                 }
4444                 for (x = 0, target = all_targets; target; target = target->next, x++) {
4445                         if (target->target_number == w)
4446                                 break;
4447                 }
4448                 if (target == NULL) {
4449                         Jim_SetResult_sprintf(goi.interp,
4450                                         "Target: number %d does not exist", (int)(w));
4451                         return JIM_ERR;
4452                 }
4453                 Jim_SetResultString(goi.interp, target->cmd_name, -1);
4454                 return JIM_OK;
4455         case TG_CMD_COUNT:
4456                 if (goi.argc != 0) {
4457                         Jim_WrongNumArgs(goi.interp, 0, goi.argv, "<no parameters>");
4458                         return JIM_ERR;
4459                 }
4460                 for (x = 0, target = all_targets; target; target = target->next, x++)
4461                         continue;
4462                 Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, x));
4463                 return JIM_OK;
4464         }
4465
4466         return JIM_ERR;
4467 }
4468
4469
4470 struct FastLoad
4471 {
4472         uint32_t address;
4473         uint8_t *data;
4474         int length;
4475
4476 };
4477
4478 static int fastload_num;
4479 static struct FastLoad *fastload;
4480
4481 static void free_fastload(void)
4482 {
4483         if (fastload != NULL)
4484         {
4485                 int i;
4486                 for (i = 0; i < fastload_num; i++)
4487                 {
4488                         if (fastload[i].data)
4489                                 free(fastload[i].data);
4490                 }
4491                 free(fastload);
4492                 fastload = NULL;
4493         }
4494 }
4495
4496
4497
4498
4499 static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
4500 {
4501         uint8_t *buffer;
4502         uint32_t buf_cnt;
4503         uint32_t image_size;
4504         uint32_t min_address = 0;
4505         uint32_t max_address = 0xffffffff;
4506         int i;
4507
4508         image_t image;
4509
4510         duration_t duration;
4511         char *duration_text;
4512
4513         int retval = parse_load_image_command_args(args, argc,
4514                         &image, &min_address, &max_address);
4515         if (ERROR_OK != retval)
4516                 return retval;
4517
4518         duration_start_measure(&duration);
4519
4520         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
4521         {
4522                 return ERROR_OK;
4523         }
4524
4525         image_size = 0x0;
4526         retval = ERROR_OK;
4527         fastload_num = image.num_sections;
4528         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
4529         if (fastload == NULL)
4530         {
4531                 image_close(&image);
4532                 return ERROR_FAIL;
4533         }
4534         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
4535         for (i = 0; i < image.num_sections; i++)
4536         {
4537                 buffer = malloc(image.sections[i].size);
4538                 if (buffer == NULL)
4539                 {
4540                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)",
4541                                                   (int)(image.sections[i].size));
4542                         break;
4543                 }
4544
4545                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
4546                 {
4547                         free(buffer);
4548                         break;
4549                 }
4550
4551                 uint32_t offset = 0;
4552                 uint32_t length = buf_cnt;
4553
4554
4555                 /* DANGER!!! beware of unsigned comparision here!!! */
4556
4557                 if ((image.sections[i].base_address + buf_cnt >= min_address)&&
4558                                 (image.sections[i].base_address < max_address))
4559                 {
4560                         if (image.sections[i].base_address < min_address)
4561                         {
4562                                 /* clip addresses below */
4563                                 offset += min_address-image.sections[i].base_address;
4564                                 length -= offset;
4565                         }
4566
4567                         if (image.sections[i].base_address + buf_cnt > max_address)
4568                         {
4569                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
4570                         }
4571
4572                         fastload[i].address = image.sections[i].base_address + offset;
4573                         fastload[i].data = malloc(length);
4574                         if (fastload[i].data == NULL)
4575                         {
4576                                 free(buffer);
4577                                 break;
4578                         }
4579                         memcpy(fastload[i].data, buffer + offset, length);
4580                         fastload[i].length = length;
4581
4582                         image_size += length;
4583                         command_print(cmd_ctx, "%u bytes written at address 0x%8.8x",
4584                                                   (unsigned int)length,
4585                                                   ((unsigned int)(image.sections[i].base_address + offset)));
4586                 }
4587
4588                 free(buffer);
4589         }
4590
4591         duration_stop_measure(&duration, &duration_text);
4592         if (retval == ERROR_OK)
4593         {
4594                 command_print(cmd_ctx, "Loaded %u bytes in %s", (unsigned int)image_size, duration_text);
4595                 command_print(cmd_ctx, "NB!!! image has not been loaded to target, issue a subsequent 'fast_load' to do so.");
4596         }
4597         free(duration_text);
4598
4599         image_close(&image);
4600
4601         if (retval != ERROR_OK)
4602         {
4603                 free_fastload();
4604         }
4605
4606         return retval;
4607 }
4608
4609 static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
4610 {
4611         if (argc > 0)
4612                 return ERROR_COMMAND_SYNTAX_ERROR;
4613         if (fastload == NULL)
4614         {
4615                 LOG_ERROR("No image in memory");
4616                 return ERROR_FAIL;
4617         }
4618         int i;
4619         int ms = timeval_ms();
4620         int size = 0;
4621         int retval = ERROR_OK;
4622         for (i = 0; i < fastload_num;i++)
4623         {
4624                 target_t *target = get_current_target(cmd_ctx);
4625                 command_print(cmd_ctx, "Write to 0x%08x, length 0x%08x",
4626                                           (unsigned int)(fastload[i].address),
4627                                           (unsigned int)(fastload[i].length));
4628                 if (retval == ERROR_OK)
4629                 {
4630                         retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
4631                 }
4632                 size += fastload[i].length;
4633         }
4634         int after = timeval_ms();
4635         command_print(cmd_ctx, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
4636         return retval;
4637 }
4638
4639
4640 /*
4641  * Local Variables:
4642  * c-basic-offset: 4
4643  * tab-width: 4
4644  * End:
4645  */