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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2010 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  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   This program is free software; you can redistribute it and/or modify  *
  21  *   it under the terms of the GNU General Public License as published by  *
  22  *   the Free Software Foundation; either version 2 of the License, or     *
  23  *   (at your option) any later version.                                   *
  24  *                                                                         *
  25  *   This program is distributed in the hope that it will be useful,       *
  26  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  27  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  28  *   GNU General Public License for more details.                          *
  29  *                                                                         *
  30  *   You should have received a copy of the GNU General Public License     *
  31  *   along with this program; if not, write to the                         *
  32  *   Free Software Foundation, Inc.,                                       *
  33  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  34  ***************************************************************************/
  35 #ifdef HAVE_CONFIG_H
  36 #include "config.h"
  37 #endif
  38
  39 #include <helper/time_support.h>
  40 #include <jtag/jtag.h>
  41 #include <flash/nor/core.h>
  42
  43 #include "target.h"
  44 #include "target_type.h"
  45 #include "target_request.h"
  46 #include "breakpoints.h"
  47 #include "register.h"
  48 #include "trace.h"
  49 #include "image.h"
  50 #include "rtos/rtos.h"
  51
  52
  53 static int target_read_buffer_default(struct target *target, uint32_t address,
  54                 uint32_t size, uint8_t *buffer);
  55 static int target_write_buffer_default(struct target *target, uint32_t address,
  56                 uint32_t size, const uint8_t *buffer);
  57 static int target_array2mem(Jim_Interp *interp, struct target *target,
  58                 int argc, Jim_Obj *const *argv);
  59 static int target_mem2array(Jim_Interp *interp, struct target *target,
  60                 int argc, Jim_Obj *const *argv);
  61 static int target_register_user_commands(struct command_context *cmd_ctx);
  62
  63 /* targets */
  64 extern struct target_type arm7tdmi_target;
  65 extern struct target_type arm720t_target;
  66 extern struct target_type arm9tdmi_target;
  67 extern struct target_type arm920t_target;
  68 extern struct target_type arm966e_target;
  69 extern struct target_type arm946e_target;
  70 extern struct target_type arm926ejs_target;
  71 extern struct target_type fa526_target;
  72 extern struct target_type feroceon_target;
  73 extern struct target_type dragonite_target;
  74 extern struct target_type xscale_target;
  75 extern struct target_type cortexm3_target;
  76 extern struct target_type cortexa8_target;
  77 extern struct target_type arm11_target;
  78 extern struct target_type mips_m4k_target;
  79 extern struct target_type avr_target;
  80 extern struct target_type dsp563xx_target;
  81 extern struct target_type testee_target;
  82 extern struct target_type avr32_ap7k_target;
  83
  84 static struct target_type *target_types[] =
  85 {
  86         &arm7tdmi_target,
  87         &arm9tdmi_target,
  88         &arm920t_target,
  89         &arm720t_target,
  90         &arm966e_target,
  91         &arm946e_target,
  92         &arm926ejs_target,
  93         &fa526_target,
  94         &feroceon_target,
  95         &dragonite_target,
  96         &xscale_target,
  97         &cortexm3_target,
  98         &cortexa8_target,
  99         &arm11_target,
 100         &mips_m4k_target,
 101         &avr_target,
 102         &dsp563xx_target,
 103         &testee_target,
 104         &avr32_ap7k_target,
 105         NULL,
 106 };
 107
 108 struct target *all_targets = NULL;
 109 static struct target_event_callback *target_event_callbacks = NULL;
 110 static struct target_timer_callback *target_timer_callbacks = NULL;
 111 static const int polling_interval = 100;
 112
 113 static const Jim_Nvp nvp_assert[] = {
 114         { .name = "assert", NVP_ASSERT },
 115         { .name = "deassert", NVP_DEASSERT },
 116         { .name = "T", NVP_ASSERT },
 117         { .name = "F", NVP_DEASSERT },
 118         { .name = "t", NVP_ASSERT },
 119         { .name = "f", NVP_DEASSERT },
 120         { .name = NULL, .value = -1 }
 121 };
 122
 123 static const Jim_Nvp nvp_error_target[] = {
 124         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 125         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 126         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 127         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 128         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 129         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 130         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 131         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 132         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 133         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 134         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 135         { .value = -1, .name = NULL }
 136 };
 137
 138 static const char *target_strerror_safe(int err)
 139 {
 140         const Jim_Nvp *n;
 141
 142         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 143         if (n->name == NULL) {
 144                 return "unknown";
 145         } else {
 146                 return n->name;
 147         }
 148 }
 149
 150 static const Jim_Nvp nvp_target_event[] = {
 151         { .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
 152         { .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
 153
 154         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 155         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 156         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 157         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 158         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 159
 160         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 161         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 162
 163         /* historical name */
 164
 165         { .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
 166
 167         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 168         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 169         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 170         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 171         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 172         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 173         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 174         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 175         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 176         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 177         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 178
 179         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 180         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 181
 182         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 183         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 184
 185         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 186         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 187
 188         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 189         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 190
 191         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 192         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 193
 194         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 195         { .value = TARGET_EVENT_RESUMED     , .name = "resume-ok" },
 196         { .value = TARGET_EVENT_RESUME_END  , .name = "resume-end" },
 197
 198         { .name = NULL, .value = -1 }
 199 };
 200
 201 static const Jim_Nvp nvp_target_state[] = {
 202         { .name = "unknown", .value = TARGET_UNKNOWN },
 203         { .name = "running", .value = TARGET_RUNNING },
 204         { .name = "halted",  .value = TARGET_HALTED },
 205         { .name = "reset",   .value = TARGET_RESET },
 206         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 207         { .name = NULL, .value = -1 },
 208 };
 209
 210 static const Jim_Nvp nvp_target_debug_reason [] = {
 211         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 212         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 213         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 214         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 215         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 216         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 217         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 218         { .name = NULL, .value = -1 },
 219 };
 220
 221 static const Jim_Nvp nvp_target_endian[] = {
 222         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 223         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 224         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 225         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 226         { .name = NULL,     .value = -1 },
 227 };
 228
 229 static const Jim_Nvp nvp_reset_modes[] = {
 230         { .name = "unknown", .value = RESET_UNKNOWN },
 231         { .name = "run"    , .value = RESET_RUN },
 232         { .name = "halt"   , .value = RESET_HALT },
 233         { .name = "init"   , .value = RESET_INIT },
 234         { .name = NULL     , .value = -1 },
 235 };
 236
 237 const char *debug_reason_name(struct target *t)
 238 {
 239         const char *cp;
 240
 241         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 242                         t->debug_reason)->name;
 243         if (!cp) {
 244                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 245                 cp = "(*BUG*unknown*BUG*)";
 246         }
 247         return cp;
 248 }
 249
 250 const char *
 251 target_state_name( struct target *t )
 252 {
 253         const char *cp;
 254         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 255         if( !cp ){
 256                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 257                 cp = "(*BUG*unknown*BUG*)";
 258         }
 259         return cp;
 260 }
 261
 262 /* determine the number of the new target */
 263 static int new_target_number(void)
 264 {
 265         struct target *t;
 266         int x;
 267
 268         /* number is 0 based */
 269         x = -1;
 270         t = all_targets;
 271         while (t) {
 272                 if (x < t->target_number) {
 273                         x = t->target_number;
 274                 }
 275                 t = t->next;
 276         }
 277         return x + 1;
 278 }
 279
 280 /* read a uint32_t from a buffer in target memory endianness */
 281 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 282 {
 283         if (target->endianness == TARGET_LITTLE_ENDIAN)
 284                 return le_to_h_u32(buffer);
 285         else
 286                 return be_to_h_u32(buffer);
 287 }
 288
 289 /* read a uint24_t from a buffer in target memory endianness */
 290 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 291 {
 292         if (target->endianness == TARGET_LITTLE_ENDIAN)
 293                 return le_to_h_u24(buffer);
 294         else
 295                 return be_to_h_u24(buffer);
 296 }
 297
 298 /* read a uint16_t from a buffer in target memory endianness */
 299 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 300 {
 301         if (target->endianness == TARGET_LITTLE_ENDIAN)
 302                 return le_to_h_u16(buffer);
 303         else
 304                 return be_to_h_u16(buffer);
 305 }
 306
 307 /* read a uint8_t from a buffer in target memory endianness */
 308 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 309 {
 310         return *buffer & 0x0ff;
 311 }
 312
 313 /* write a uint32_t to a buffer in target memory endianness */
 314 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 315 {
 316         if (target->endianness == TARGET_LITTLE_ENDIAN)
 317                 h_u32_to_le(buffer, value);
 318         else
 319                 h_u32_to_be(buffer, value);
 320 }
 321
 322 /* write a uint24_t to a buffer in target memory endianness */
 323 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 324 {
 325         if (target->endianness == TARGET_LITTLE_ENDIAN)
 326                 h_u24_to_le(buffer, value);
 327         else
 328                 h_u24_to_be(buffer, value);
 329 }
 330
 331 /* write a uint16_t to a buffer in target memory endianness */
 332 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 333 {
 334         if (target->endianness == TARGET_LITTLE_ENDIAN)
 335                 h_u16_to_le(buffer, value);
 336         else
 337                 h_u16_to_be(buffer, value);
 338 }
 339
 340 /* write a uint8_t to a buffer in target memory endianness */
 341 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 342 {
 343         *buffer = value;
 344 }
 345
 346 /* return a pointer to a configured target; id is name or number */
 347 struct target *get_target(const char *id)
 348 {
 349         struct target *target;
 350
 351         /* try as tcltarget name */
 352         for (target = all_targets; target; target = target->next) {
 353                 if (target->cmd_name == NULL)
 354                         continue;
 355                 if (strcmp(id, target->cmd_name) == 0)
 356                         return target;
 357         }
 358
 359         /* It's OK to remove this fallback sometime after August 2010 or so */
 360
 361         /* no match, try as number */
 362         unsigned num;
 363         if (parse_uint(id, &num) != ERROR_OK)
 364                 return NULL;
 365
 366         for (target = all_targets; target; target = target->next) {
 367                 if (target->target_number == (int)num) {
 368                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 369                                         target->cmd_name, num);
 370                         return target;
 371                 }
 372         }
 373
 374         return NULL;
 375 }
 376
 377 /* returns a pointer to the n-th configured target */
 378 static struct target *get_target_by_num(int num)
 379 {
 380         struct target *target = all_targets;
 381
 382         while (target) {
 383                 if (target->target_number == num) {
 384                         return target;
 385                 }
 386                 target = target->next;
 387         }
 388
 389         return NULL;
 390 }
 391
 392 struct target* get_current_target(struct command_context *cmd_ctx)
 393 {
 394         struct target *target = get_target_by_num(cmd_ctx->current_target);
 395
 396         if (target == NULL)
 397         {
 398                 LOG_ERROR("BUG: current_target out of bounds");
 399                 exit(-1);
 400         }
 401
 402         return target;
 403 }
 404
 405 int target_poll(struct target *target)
 406 {
 407         int retval;
 408
 409         /* We can't poll until after examine */
 410         if (!target_was_examined(target))
 411         {
 412                 /* Fail silently lest we pollute the log */
 413                 return ERROR_FAIL;
 414         }
 415
 416         retval = target->type->poll(target);
 417         if (retval != ERROR_OK)
 418                 return retval;
 419
 420         if (target->halt_issued)
 421         {
 422                 if (target->state == TARGET_HALTED)
 423                 {
 424                         target->halt_issued = false;
 425                 } else
 426                 {
 427                         long long t = timeval_ms() - target->halt_issued_time;
 428                         if (t>1000)
 429                         {
 430                                 target->halt_issued = false;
 431                                 LOG_INFO("Halt timed out, wake up GDB.");
 432                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 433                         }
 434                 }
 435         }
 436
 437         return ERROR_OK;
 438 }
 439
 440 int target_halt(struct target *target)
 441 {
 442         int retval;
 443         /* We can't poll until after examine */
 444         if (!target_was_examined(target))
 445         {
 446                 LOG_ERROR("Target not examined yet");
 447                 return ERROR_FAIL;
 448         }
 449
 450         retval = target->type->halt(target);
 451         if (retval != ERROR_OK)
 452                 return retval;
 453
 454         target->halt_issued = true;
 455         target->halt_issued_time = timeval_ms();
 456
 457         return ERROR_OK;
 458 }
 459
 460 /**
 461  * Make the target (re)start executing using its saved execution
 462  * context (possibly with some modifications).
 463  *
 464  * @param target Which target should start executing.
 465  * @param current True to use the target's saved program counter instead
 466  *      of the address parameter
 467  * @param address Optionally used as the program counter.
 468  * @param handle_breakpoints True iff breakpoints at the resumption PC
 469  *      should be skipped.  (For example, maybe execution was stopped by
 470  *      such a breakpoint, in which case it would be counterprodutive to
 471  *      let it re-trigger.
 472  * @param debug_execution False if all working areas allocated by OpenOCD
 473  *      should be released and/or restored to their original contents.
 474  *      (This would for example be true to run some downloaded "helper"
 475  *      algorithm code, which resides in one such working buffer and uses
 476  *      another for data storage.)
 477  *
 478  * @todo Resolve the ambiguity about what the "debug_execution" flag
 479  * signifies.  For example, Target implementations don't agree on how
 480  * it relates to invalidation of the register cache, or to whether
 481  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 482  * to enable breakpoints when running downloaded "helper" algorithms
 483  * (debug_execution true), since the breakpoints would be set to match
 484  * target firmware being debugged, not the helper algorithm.... and
 485  * enabling them could cause such helpers to malfunction (for example,
 486  * by overwriting data with a breakpoint instruction.  On the other
 487  * hand the infrastructure for running such helpers might use this
 488  * procedure but rely on hardware breakpoint to detect termination.)
 489  */
 490 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 491 {
 492         int retval;
 493
 494         /* We can't poll until after examine */
 495         if (!target_was_examined(target))
 496         {
 497                 LOG_ERROR("Target not examined yet");
 498                 return ERROR_FAIL;
 499         }
 500
 501         /* note that resume *must* be asynchronous. The CPU can halt before
 502          * we poll. The CPU can even halt at the current PC as a result of
 503          * a software breakpoint being inserted by (a bug?) the application.
 504          */
 505         if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
 506                 return retval;
 507
 508         return retval;
 509 }
 510
 511 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 512 {
 513         char buf[100];
 514         int retval;
 515         Jim_Nvp *n;
 516         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 517         if (n->name == NULL) {
 518                 LOG_ERROR("invalid reset mode");
 519                 return ERROR_FAIL;
 520         }
 521
 522         /* disable polling during reset to make reset event scripts
 523          * more predictable, i.e. dr/irscan & pathmove in events will
 524          * not have JTAG operations injected into the middle of a sequence.
 525          */
 526         bool save_poll = jtag_poll_get_enabled();
 527
 528         jtag_poll_set_enabled(false);
 529
 530         sprintf(buf, "ocd_process_reset %s", n->name);
 531         retval = Jim_Eval(cmd_ctx->interp, buf);
 532
 533         jtag_poll_set_enabled(save_poll);
 534
 535         if (retval != JIM_OK) {
 536                 Jim_MakeErrorMessage(cmd_ctx->interp);
 537                 command_print(NULL,"%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 538                 return ERROR_FAIL;
 539         }
 540
 541         /* We want any events to be processed before the prompt */
 542         retval = target_call_timer_callbacks_now();
 543
 544         struct target *target;
 545         for (target = all_targets; target; target = target->next) {
 546                 target->type->check_reset(target);
 547         }
 548
 549         return retval;
 550 }
 551
 552 static int identity_virt2phys(struct target *target,
 553                 uint32_t virtual, uint32_t *physical)
 554 {
 555         *physical = virtual;
 556         return ERROR_OK;
 557 }
 558
 559 static int no_mmu(struct target *target, int *enabled)
 560 {
 561         *enabled = 0;
 562         return ERROR_OK;
 563 }
 564
 565 static int default_examine(struct target *target)
 566 {
 567         target_set_examined(target);
 568         return ERROR_OK;
 569 }
 570
 571 /* no check by default */
 572 static int default_check_reset(struct target *target)
 573 {
 574         return ERROR_OK;
 575 }
 576
 577 int target_examine_one(struct target *target)
 578 {
 579         return target->type->examine(target);
 580 }
 581
 582 static int jtag_enable_callback(enum jtag_event event, void *priv)
 583 {
 584         struct target *target = priv;
 585
 586         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 587                 return ERROR_OK;
 588
 589         jtag_unregister_event_callback(jtag_enable_callback, target);
 590         return target_examine_one(target);
 591 }
 592
 593
 594 /* Targets that correctly implement init + examine, i.e.
 595  * no communication with target during init:
 596  *
 597  * XScale
 598  */
 599 int target_examine(void)
 600 {
 601         int retval = ERROR_OK;
 602         struct target *target;
 603
 604         for (target = all_targets; target; target = target->next)
 605         {
 606                 /* defer examination, but don't skip it */
 607                 if (!target->tap->enabled) {
 608                         jtag_register_event_callback(jtag_enable_callback,
 609                                         target);
 610                         continue;
 611                 }
 612                 if ((retval = target_examine_one(target)) != ERROR_OK)
 613                         return retval;
 614         }
 615         return retval;
 616 }
 617 const char *target_type_name(struct target *target)
 618 {
 619         return target->type->name;
 620 }
 621
 622 static int target_write_memory_imp(struct target *target, uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 623 {
 624         if (!target_was_examined(target))
 625         {
 626                 LOG_ERROR("Target not examined yet");
 627                 return ERROR_FAIL;
 628         }
 629         return target->type->write_memory_imp(target, address, size, count, buffer);
 630 }
 631
 632 static int target_read_memory_imp(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 633 {
 634         if (!target_was_examined(target))
 635         {
 636                 LOG_ERROR("Target not examined yet");
 637                 return ERROR_FAIL;
 638         }
 639         return target->type->read_memory_imp(target, address, size, count, buffer);
 640 }
 641
 642 static int target_soft_reset_halt_imp(struct target *target)
 643 {
 644         if (!target_was_examined(target))
 645         {
 646                 LOG_ERROR("Target not examined yet");
 647                 return ERROR_FAIL;
 648         }
 649         if (!target->type->soft_reset_halt_imp) {
 650                 LOG_ERROR("Target %s does not support soft_reset_halt",
 651                                 target_name(target));
 652                 return ERROR_FAIL;
 653         }
 654         return target->type->soft_reset_halt_imp(target);
 655 }
 656
 657 /**
 658  * Downloads a target-specific native code algorithm to the target,
 659  * and executes it.  * Note that some targets may need to set up, enable,
 660  * and tear down a breakpoint (hard or * soft) to detect algorithm
 661  * termination, while others may support  lower overhead schemes where
 662  * soft breakpoints embedded in the algorithm automatically terminate the
 663  * algorithm.
 664  *
 665  * @param target used to run the algorithm
 666  * @param arch_info target-specific description of the algorithm.
 667  */
 668 int target_run_algorithm(struct target *target,
 669                 int num_mem_params, struct mem_param *mem_params,
 670                 int num_reg_params, struct reg_param *reg_param,
 671                 uint32_t entry_point, uint32_t exit_point,
 672                 int timeout_ms, void *arch_info)
 673 {
 674         int retval = ERROR_FAIL;
 675
 676         if (!target_was_examined(target))
 677         {
 678                 LOG_ERROR("Target not examined yet");
 679                 goto done;
 680         }
 681         if (!target->type->run_algorithm) {
 682                 LOG_ERROR("Target type '%s' does not support %s",
 683                                 target_type_name(target), __func__);
 684                 goto done;
 685         }
 686
 687         target->running_alg = true;
 688         retval = target->type->run_algorithm(target,
 689                         num_mem_params, mem_params,
 690                         num_reg_params, reg_param,
 691                         entry_point, exit_point, timeout_ms, arch_info);
 692         target->running_alg = false;
 693
 694 done:
 695         return retval;
 696 }
 697
 698
 699 int target_read_memory(struct target *target,
 700                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 701 {
 702         return target->type->read_memory(target, address, size, count, buffer);
 703 }
 704
 705 static int target_read_phys_memory(struct target *target,
 706                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 707 {
 708         return target->type->read_phys_memory(target, address, size, count, buffer);
 709 }
 710
 711 int target_write_memory(struct target *target,
 712                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 713 {
 714         return target->type->write_memory(target, address, size, count, buffer);
 715 }
 716
 717 static int target_write_phys_memory(struct target *target,
 718                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 719 {
 720         return target->type->write_phys_memory(target, address, size, count, buffer);
 721 }
 722
 723 int target_bulk_write_memory(struct target *target,
 724                 uint32_t address, uint32_t count, const uint8_t *buffer)
 725 {
 726         return target->type->bulk_write_memory(target, address, count, buffer);
 727 }
 728
 729 int target_add_breakpoint(struct target *target,
 730                 struct breakpoint *breakpoint)
 731 {
 732         if (target->state != TARGET_HALTED) {
 733                 LOG_WARNING("target %s is not halted", target->cmd_name);
 734                 return ERROR_TARGET_NOT_HALTED;
 735         }
 736         return target->type->add_breakpoint(target, breakpoint);
 737 }
 738 int target_remove_breakpoint(struct target *target,
 739                 struct breakpoint *breakpoint)
 740 {
 741         return target->type->remove_breakpoint(target, breakpoint);
 742 }
 743
 744 int target_add_watchpoint(struct target *target,
 745                 struct watchpoint *watchpoint)
 746 {
 747         if (target->state != TARGET_HALTED) {
 748                 LOG_WARNING("target %s is not halted", target->cmd_name);
 749                 return ERROR_TARGET_NOT_HALTED;
 750         }
 751         return target->type->add_watchpoint(target, watchpoint);
 752 }
 753 int target_remove_watchpoint(struct target *target,
 754                 struct watchpoint *watchpoint)
 755 {
 756         return target->type->remove_watchpoint(target, watchpoint);
 757 }
 758
 759 int target_get_gdb_reg_list(struct target *target,
 760                 struct reg **reg_list[], int *reg_list_size)
 761 {
 762         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
 763 }
 764 int target_step(struct target *target,
 765                 int current, uint32_t address, int handle_breakpoints)
 766 {
 767         return target->type->step(target, current, address, handle_breakpoints);
 768 }
 769
 770
 771 /**
 772  * Reset the @c examined flag for the given target.
 773  * Pure paranoia -- targets are zeroed on allocation.
 774  */
 775 static void target_reset_examined(struct target *target)
 776 {
 777         target->examined = false;
 778 }
 779
 780 static int
 781 err_read_phys_memory(struct target *target, uint32_t address,
 782                 uint32_t size, uint32_t count, uint8_t *buffer)
 783 {
 784         LOG_ERROR("Not implemented: %s", __func__);
 785         return ERROR_FAIL;
 786 }
 787
 788 static int
 789 err_write_phys_memory(struct target *target, uint32_t address,
 790                 uint32_t size, uint32_t count, const uint8_t *buffer)
 791 {
 792         LOG_ERROR("Not implemented: %s", __func__);
 793         return ERROR_FAIL;
 794 }
 795
 796 static int handle_target(void *priv);
 797
 798 static int target_init_one(struct command_context *cmd_ctx,
 799                 struct target *target)
 800 {
 801         target_reset_examined(target);
 802
 803         struct target_type *type = target->type;
 804         if (type->examine == NULL)
 805                 type->examine = default_examine;
 806
 807         if (type->check_reset== NULL)
 808                 type->check_reset = default_check_reset;
 809
 810         int retval = type->init_target(cmd_ctx, target);
 811         if (ERROR_OK != retval)
 812         {
 813                 LOG_ERROR("target '%s' init failed", target_name(target));
 814                 return retval;
 815         }
 816
 817         /**
 818          * @todo get rid of those *memory_imp() methods, now that all
 819          * callers are using target_*_memory() accessors ... and make
 820          * sure the "physical" paths handle the same issues.
 821          */
 822         /* a non-invasive way(in terms of patches) to add some code that
 823          * runs before the type->write/read_memory implementation
 824          */
 825         type->write_memory_imp = target->type->write_memory;
 826         type->write_memory = target_write_memory_imp;
 827
 828         type->read_memory_imp = target->type->read_memory;
 829         type->read_memory = target_read_memory_imp;
 830
 831         type->soft_reset_halt_imp = target->type->soft_reset_halt;
 832         type->soft_reset_halt = target_soft_reset_halt_imp;
 833
 834         /* Sanity-check MMU support ... stub in what we must, to help
 835          * implement it in stages, but warn if we need to do so.
 836          */
 837         if (type->mmu)
 838         {
 839                 if (type->write_phys_memory == NULL)
 840                 {
 841                         LOG_ERROR("type '%s' is missing write_phys_memory",
 842                                         type->name);
 843                         type->write_phys_memory = err_write_phys_memory;
 844                 }
 845                 if (type->read_phys_memory == NULL)
 846                 {
 847                         LOG_ERROR("type '%s' is missing read_phys_memory",
 848                                         type->name);
 849                         type->read_phys_memory = err_read_phys_memory;
 850                 }
 851                 if (type->virt2phys == NULL)
 852                 {
 853                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
 854                         type->virt2phys = identity_virt2phys;
 855                 }
 856         }
 857         else
 858         {
 859                 /* Make sure no-MMU targets all behave the same:  make no
 860                  * distinction between physical and virtual addresses, and
 861                  * ensure that virt2phys() is always an identity mapping.
 862                  */
 863                 if (type->write_phys_memory || type->read_phys_memory
 864                                 || type->virt2phys)
 865                 {
 866                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
 867                 }
 868
 869                 type->mmu = no_mmu;
 870                 type->write_phys_memory = type->write_memory;
 871                 type->read_phys_memory = type->read_memory;
 872                 type->virt2phys = identity_virt2phys;
 873         }
 874
 875         if (target->type->read_buffer == NULL)
 876                 target->type->read_buffer = target_read_buffer_default;
 877
 878         if (target->type->write_buffer == NULL)
 879                 target->type->write_buffer = target_write_buffer_default;
 880
 881         return ERROR_OK;
 882 }
 883
 884 static int target_init(struct command_context *cmd_ctx)
 885 {
 886         struct target *target;
 887         int retval;
 888
 889         for (target = all_targets; target; target = target->next)
 890         {
 891                 retval = target_init_one(cmd_ctx, target);
 892                 if (ERROR_OK != retval)
 893                         return retval;
 894         }
 895
 896         if (!all_targets)
 897                 return ERROR_OK;
 898
 899         retval = target_register_user_commands(cmd_ctx);
 900         if (ERROR_OK != retval)
 901                 return retval;
 902
 903         retval = target_register_timer_callback(&handle_target,
 904                         polling_interval, 1, cmd_ctx->interp);
 905         if (ERROR_OK != retval)
 906                 return retval;
 907
 908         return ERROR_OK;
 909 }
 910
 911 COMMAND_HANDLER(handle_target_init_command)
 912 {
 913         if (CMD_ARGC != 0)
 914                 return ERROR_COMMAND_SYNTAX_ERROR;
 915
 916         static bool target_initialized = false;
 917         if (target_initialized)
 918         {
 919                 LOG_INFO("'target init' has already been called");
 920                 return ERROR_OK;
 921         }
 922         target_initialized = true;
 923
 924         LOG_DEBUG("Initializing targets...");
 925         return target_init(CMD_CTX);
 926 }
 927
 928 int target_register_event_callback(int (*callback)(struct target *target, enum target_event event, void *priv), void *priv)
 929 {
 930         struct target_event_callback **callbacks_p = &target_event_callbacks;
 931
 932         if (callback == NULL)
 933         {
 934                 return ERROR_INVALID_ARGUMENTS;
 935         }
 936
 937         if (*callbacks_p)
 938         {
 939                 while ((*callbacks_p)->next)
 940                         callbacks_p = &((*callbacks_p)->next);
 941                 callbacks_p = &((*callbacks_p)->next);
 942         }
 943
 944         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
 945         (*callbacks_p)->callback = callback;
 946         (*callbacks_p)->priv = priv;
 947         (*callbacks_p)->next = NULL;
 948
 949         return ERROR_OK;
 950 }
 951
 952 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 953 {
 954         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
 955         struct timeval now;
 956
 957         if (callback == NULL)
 958         {
 959                 return ERROR_INVALID_ARGUMENTS;
 960         }
 961
 962         if (*callbacks_p)
 963         {
 964                 while ((*callbacks_p)->next)
 965                         callbacks_p = &((*callbacks_p)->next);
 966                 callbacks_p = &((*callbacks_p)->next);
 967         }
 968
 969         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
 970         (*callbacks_p)->callback = callback;
 971         (*callbacks_p)->periodic = periodic;
 972         (*callbacks_p)->time_ms = time_ms;
 973
 974         gettimeofday(&now, NULL);
 975         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 976         time_ms -= (time_ms % 1000);
 977         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 978         if ((*callbacks_p)->when.tv_usec > 1000000)
 979         {
 980                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 981                 (*callbacks_p)->when.tv_sec += 1;
 982         }
 983
 984         (*callbacks_p)->priv = priv;
 985         (*callbacks_p)->next = NULL;
 986
 987         return ERROR_OK;
 988 }
 989
 990 int target_unregister_event_callback(int (*callback)(struct target *target, enum target_event event, void *priv), void *priv)
 991 {
 992         struct target_event_callback **p = &target_event_callbacks;
 993         struct target_event_callback *c = target_event_callbacks;
 994
 995         if (callback == NULL)
 996         {
 997                 return ERROR_INVALID_ARGUMENTS;
 998         }
 999
1000         while (c)
1001         {
1002                 struct target_event_callback *next = c->next;
1003                 if ((c->callback == callback) && (c->priv == priv))
1004                 {
1005                         *p = next;
1006                         free(c);
1007                         return ERROR_OK;
1008                 }
1009                 else
1010                         p = &(c->next);
1011                 c = next;
1012         }
1013
1014         return ERROR_OK;
1015 }
1016
1017 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1018 {
1019         struct target_timer_callback **p = &target_timer_callbacks;
1020         struct target_timer_callback *c = target_timer_callbacks;
1021
1022         if (callback == NULL)
1023         {
1024                 return ERROR_INVALID_ARGUMENTS;
1025         }
1026
1027         while (c)
1028         {
1029                 struct target_timer_callback *next = c->next;
1030                 if ((c->callback == callback) && (c->priv == priv))
1031                 {
1032                         *p = next;
1033                         free(c);
1034                         return ERROR_OK;
1035                 }
1036                 else
1037                         p = &(c->next);
1038                 c = next;
1039         }
1040
1041         return ERROR_OK;
1042 }
1043
1044 int target_call_event_callbacks(struct target *target, enum target_event event)
1045 {
1046         struct target_event_callback *callback = target_event_callbacks;
1047         struct target_event_callback *next_callback;
1048
1049         if (event == TARGET_EVENT_HALTED)
1050         {
1051                 /* execute early halted first */
1052                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1053         }
1054
1055         LOG_DEBUG("target event %i (%s)",
1056                           event,
1057                           Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1058
1059         target_handle_event(target, event);
1060
1061         while (callback)
1062         {
1063                 next_callback = callback->next;
1064                 callback->callback(target, event, callback->priv);
1065                 callback = next_callback;
1066         }
1067
1068         return ERROR_OK;
1069 }
1070
1071 static int target_timer_callback_periodic_restart(
1072                 struct target_timer_callback *cb, struct timeval *now)
1073 {
1074         int time_ms = cb->time_ms;
1075         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1076         time_ms -= (time_ms % 1000);
1077         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1078         if (cb->when.tv_usec > 1000000)
1079         {
1080                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1081                 cb->when.tv_sec += 1;
1082         }
1083         return ERROR_OK;
1084 }
1085
1086 static int target_call_timer_callback(struct target_timer_callback *cb,
1087                 struct timeval *now)
1088 {
1089         cb->callback(cb->priv);
1090
1091         if (cb->periodic)
1092                 return target_timer_callback_periodic_restart(cb, now);
1093
1094         return target_unregister_timer_callback(cb->callback, cb->priv);
1095 }
1096
1097 static int target_call_timer_callbacks_check_time(int checktime)
1098 {
1099         keep_alive();
1100
1101         struct timeval now;
1102         gettimeofday(&now, NULL);
1103
1104         struct target_timer_callback *callback = target_timer_callbacks;
1105         while (callback)
1106         {
1107                 // cleaning up may unregister and free this callback
1108                 struct target_timer_callback *next_callback = callback->next;
1109
1110                 bool call_it = callback->callback &&
1111                         ((!checktime && callback->periodic) ||
1112                           now.tv_sec > callback->when.tv_sec ||
1113                          (now.tv_sec == callback->when.tv_sec &&
1114                           now.tv_usec >= callback->when.tv_usec));
1115
1116                 if (call_it)
1117                 {
1118                         int retval = target_call_timer_callback(callback, &now);
1119                         if (retval != ERROR_OK)
1120                                 return retval;
1121                 }
1122
1123                 callback = next_callback;
1124         }
1125
1126         return ERROR_OK;
1127 }
1128
1129 int target_call_timer_callbacks(void)
1130 {
1131         return target_call_timer_callbacks_check_time(1);
1132 }
1133
1134 /* invoke periodic callbacks immediately */
1135 int target_call_timer_callbacks_now(void)
1136 {
1137         return target_call_timer_callbacks_check_time(0);
1138 }
1139
1140 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1141 {
1142         struct working_area *c = target->working_areas;
1143         struct working_area *new_wa = NULL;
1144
1145         /* Reevaluate working area address based on MMU state*/
1146         if (target->working_areas == NULL)
1147         {
1148                 int retval;
1149                 int enabled;
1150
1151                 retval = target->type->mmu(target, &enabled);
1152                 if (retval != ERROR_OK)
1153                 {
1154                         return retval;
1155                 }
1156
1157                 if (!enabled) {
1158                         if (target->working_area_phys_spec) {
1159                                 LOG_DEBUG("MMU disabled, using physical "
1160                                         "address for working memory 0x%08x",
1161                                         (unsigned)target->working_area_phys);
1162                                 target->working_area = target->working_area_phys;
1163                         } else {
1164                                 LOG_ERROR("No working memory available. "
1165                                         "Specify -work-area-phys to target.");
1166                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1167                         }
1168                 } else {
1169                         if (target->working_area_virt_spec) {
1170                                 LOG_DEBUG("MMU enabled, using virtual "
1171                                         "address for working memory 0x%08x",
1172                                         (unsigned)target->working_area_virt);
1173                                 target->working_area = target->working_area_virt;
1174                         } else {
1175                                 LOG_ERROR("No working memory available. "
1176                                         "Specify -work-area-virt to target.");
1177                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1178                         }
1179                 }
1180         }
1181
1182         /* only allocate multiples of 4 byte */
1183         if (size % 4)
1184         {
1185                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes (0x%08x), padding", ((unsigned)(size)));
1186                 size = (size + 3) & (~3);
1187         }
1188
1189         /* see if there's already a matching working area */
1190         while (c)
1191         {
1192                 if ((c->free) && (c->size == size))
1193                 {
1194                         new_wa = c;
1195                         break;
1196                 }
1197                 c = c->next;
1198         }
1199
1200         /* if not, allocate a new one */
1201         if (!new_wa)
1202         {
1203                 struct working_area **p = &target->working_areas;
1204                 uint32_t first_free = target->working_area;
1205                 uint32_t free_size = target->working_area_size;
1206
1207                 c = target->working_areas;
1208                 while (c)
1209                 {
1210                         first_free += c->size;
1211                         free_size -= c->size;
1212                         p = &c->next;
1213                         c = c->next;
1214                 }
1215
1216                 if (free_size < size)
1217                 {
1218                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1219                 }
1220
1221                 LOG_DEBUG("allocated new working area at address 0x%08x", (unsigned)first_free);
1222
1223                 new_wa = malloc(sizeof(struct working_area));
1224                 new_wa->next = NULL;
1225                 new_wa->size = size;
1226                 new_wa->address = first_free;
1227
1228                 if (target->backup_working_area)
1229                 {
1230                         int retval;
1231                         new_wa->backup = malloc(new_wa->size);
1232                         if ((retval = target_read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup)) != ERROR_OK)
1233                         {
1234                                 free(new_wa->backup);
1235                                 free(new_wa);
1236                                 return retval;
1237                         }
1238                 }
1239                 else
1240                 {
1241                         new_wa->backup = NULL;
1242                 }
1243
1244                 /* put new entry in list */
1245                 *p = new_wa;
1246         }
1247
1248         /* mark as used, and return the new (reused) area */
1249         new_wa->free = false;
1250         *area = new_wa;
1251
1252         /* user pointer */
1253         new_wa->user = area;
1254
1255         return ERROR_OK;
1256 }
1257
1258 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1259 {
1260         int retval;
1261
1262         retval = target_alloc_working_area_try(target, size, area);
1263         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1264         {
1265                 LOG_WARNING("not enough working area available(requested %u)", (unsigned)(size));
1266         }
1267         return retval;
1268
1269 }
1270
1271 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1272 {
1273         if (area->free)
1274                 return ERROR_OK;
1275
1276         if (restore && target->backup_working_area)
1277         {
1278                 int retval;
1279                 if ((retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup)) != ERROR_OK)
1280                         return retval;
1281         }
1282
1283         area->free = true;
1284
1285         /* mark user pointer invalid */
1286         *area->user = NULL;
1287         area->user = NULL;
1288
1289         return ERROR_OK;
1290 }
1291
1292 int target_free_working_area(struct target *target, struct working_area *area)
1293 {
1294         return target_free_working_area_restore(target, area, 1);
1295 }
1296
1297 /* free resources and restore memory, if restoring memory fails,
1298  * free up resources anyway
1299  */
1300 static void target_free_all_working_areas_restore(struct target *target, int restore)
1301 {
1302         struct working_area *c = target->working_areas;
1303
1304         while (c)
1305         {
1306                 struct working_area *next = c->next;
1307                 target_free_working_area_restore(target, c, restore);
1308
1309                 if (c->backup)
1310                         free(c->backup);
1311
1312                 free(c);
1313
1314                 c = next;
1315         }
1316
1317         target->working_areas = NULL;
1318 }
1319
1320 void target_free_all_working_areas(struct target *target)
1321 {
1322         target_free_all_working_areas_restore(target, 1);
1323 }
1324
1325 int target_arch_state(struct target *target)
1326 {
1327         int retval;
1328         if (target == NULL)
1329         {
1330                 LOG_USER("No target has been configured");
1331                 return ERROR_OK;
1332         }
1333
1334         LOG_USER("target state: %s", target_state_name( target ));
1335
1336         if (target->state != TARGET_HALTED)
1337                 return ERROR_OK;
1338
1339         retval = target->type->arch_state(target);
1340         return retval;
1341 }
1342
1343 /* Single aligned words are guaranteed to use 16 or 32 bit access
1344  * mode respectively, otherwise data is handled as quickly as
1345  * possible
1346  */
1347 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1348 {
1349         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1350                   (int)size, (unsigned)address);
1351
1352         if (!target_was_examined(target))
1353         {
1354                 LOG_ERROR("Target not examined yet");
1355                 return ERROR_FAIL;
1356         }
1357
1358         if (size == 0) {
1359                 return ERROR_OK;
1360         }
1361
1362         if ((address + size - 1) < address)
1363         {
1364                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1365                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1366                                   (unsigned)address,
1367                                   (unsigned)size);
1368                 return ERROR_FAIL;
1369         }
1370
1371         return target->type->write_buffer(target, address, size, buffer);
1372 }
1373
1374 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1375 {
1376         int retval = ERROR_OK;
1377
1378         if (((address % 2) == 0) && (size == 2))
1379         {
1380                 return target_write_memory(target, address, 2, 1, buffer);
1381         }
1382
1383         /* handle unaligned head bytes */
1384         if (address % 4)
1385         {
1386                 uint32_t unaligned = 4 - (address % 4);
1387
1388                 if (unaligned > size)
1389                         unaligned = size;
1390
1391                 if ((retval = target_write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1392                         return retval;
1393
1394                 buffer += unaligned;
1395                 address += unaligned;
1396                 size -= unaligned;
1397         }
1398
1399         /* handle aligned words */
1400         if (size >= 4)
1401         {
1402                 int aligned = size - (size % 4);
1403
1404                 /* use bulk writes above a certain limit. This may have to be changed */
1405                 if (aligned > 128)
1406                 {
1407                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
1408                                 return retval;
1409                 }
1410                 else
1411                 {
1412                         if ((retval = target_write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1413                                 return retval;
1414                 }
1415
1416                 buffer += aligned;
1417                 address += aligned;
1418                 size -= aligned;
1419         }
1420
1421         /* handle tail writes of less than 4 bytes */
1422         if (size > 0)
1423         {
1424                 if ((retval = target_write_memory(target, address, 1, size, buffer)) != ERROR_OK)
1425                         return retval;
1426         }
1427
1428         return retval;
1429 }
1430
1431 /* Single aligned words are guaranteed to use 16 or 32 bit access
1432  * mode respectively, otherwise data is handled as quickly as
1433  * possible
1434  */
1435 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1436 {
1437         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1438                           (int)size, (unsigned)address);
1439
1440         if (!target_was_examined(target))
1441         {
1442                 LOG_ERROR("Target not examined yet");
1443                 return ERROR_FAIL;
1444         }
1445
1446         if (size == 0) {
1447                 return ERROR_OK;
1448         }
1449
1450         if ((address + size - 1) < address)
1451         {
1452                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1453                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1454                                   address,
1455                                   size);
1456                 return ERROR_FAIL;
1457         }
1458
1459         return target->type->read_buffer(target, address, size, buffer);
1460 }
1461
1462 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1463 {
1464         int retval = ERROR_OK;
1465
1466         if (((address % 2) == 0) && (size == 2))
1467         {
1468                 return target_read_memory(target, address, 2, 1, buffer);
1469         }
1470
1471         /* handle unaligned head bytes */
1472         if (address % 4)
1473         {
1474                 uint32_t unaligned = 4 - (address % 4);
1475
1476                 if (unaligned > size)
1477                         unaligned = size;
1478
1479                 if ((retval = target_read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1480                         return retval;
1481
1482                 buffer += unaligned;
1483                 address += unaligned;
1484                 size -= unaligned;
1485         }
1486
1487         /* handle aligned words */
1488         if (size >= 4)
1489         {
1490                 int aligned = size - (size % 4);
1491
1492                 if ((retval = target_read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1493                         return retval;
1494
1495                 buffer += aligned;
1496                 address += aligned;
1497                 size -= aligned;
1498         }
1499
1500         /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
1501         if(size >=2)
1502         {
1503                 int aligned = size - (size%2);
1504                 retval = target_read_memory(target, address, 2, aligned / 2, buffer);
1505                 if (retval != ERROR_OK)
1506                         return retval;
1507
1508                 buffer += aligned;
1509                 address += aligned;
1510                 size -= aligned;
1511         }
1512         /* handle tail writes of less than 4 bytes */
1513         if (size > 0)
1514         {
1515                 if ((retval = target_read_memory(target, address, 1, size, buffer)) != ERROR_OK)
1516                         return retval;
1517         }
1518
1519         return ERROR_OK;
1520 }
1521
1522 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1523 {
1524         uint8_t *buffer;
1525         int retval;
1526         uint32_t i;
1527         uint32_t checksum = 0;
1528         if (!target_was_examined(target))
1529         {
1530                 LOG_ERROR("Target not examined yet");
1531                 return ERROR_FAIL;
1532         }
1533
1534         if ((retval = target->type->checksum_memory(target, address,
1535                 size, &checksum)) != ERROR_OK)
1536         {
1537                 buffer = malloc(size);
1538                 if (buffer == NULL)
1539                 {
1540                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1541                         return ERROR_INVALID_ARGUMENTS;
1542                 }
1543                 retval = target_read_buffer(target, address, size, buffer);
1544                 if (retval != ERROR_OK)
1545                 {
1546                         free(buffer);
1547                         return retval;
1548                 }
1549
1550                 /* convert to target endianness */
1551                 for (i = 0; i < (size/sizeof(uint32_t)); i++)
1552                 {
1553                         uint32_t target_data;
1554                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1555                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1556                 }
1557
1558                 retval = image_calculate_checksum(buffer, size, &checksum);
1559                 free(buffer);
1560         }
1561
1562         *crc = checksum;
1563
1564         return retval;
1565 }
1566
1567 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1568 {
1569         int retval;
1570         if (!target_was_examined(target))
1571         {
1572                 LOG_ERROR("Target not examined yet");
1573                 return ERROR_FAIL;
1574         }
1575
1576         if (target->type->blank_check_memory == 0)
1577                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1578
1579         retval = target->type->blank_check_memory(target, address, size, blank);
1580
1581         return retval;
1582 }
1583
1584 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1585 {
1586         uint8_t value_buf[4];
1587         if (!target_was_examined(target))
1588         {
1589                 LOG_ERROR("Target not examined yet");
1590                 return ERROR_FAIL;
1591         }
1592
1593         int retval = target_read_memory(target, address, 4, 1, value_buf);
1594
1595         if (retval == ERROR_OK)
1596         {
1597                 *value = target_buffer_get_u32(target, value_buf);
1598                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1599                                   address,
1600                                   *value);
1601         }
1602         else
1603         {
1604                 *value = 0x0;
1605                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1606                                   address);
1607         }
1608
1609         return retval;
1610 }
1611
1612 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
1613 {
1614         uint8_t value_buf[2];
1615         if (!target_was_examined(target))
1616         {
1617                 LOG_ERROR("Target not examined yet");
1618                 return ERROR_FAIL;
1619         }
1620
1621         int retval = target_read_memory(target, address, 2, 1, value_buf);
1622
1623         if (retval == ERROR_OK)
1624         {
1625                 *value = target_buffer_get_u16(target, value_buf);
1626                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1627                                   address,
1628                                   *value);
1629         }
1630         else
1631         {
1632                 *value = 0x0;
1633                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1634                                   address);
1635         }
1636
1637         return retval;
1638 }
1639
1640 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
1641 {
1642         int retval = target_read_memory(target, address, 1, 1, value);
1643         if (!target_was_examined(target))
1644         {
1645                 LOG_ERROR("Target not examined yet");
1646                 return ERROR_FAIL;
1647         }
1648
1649         if (retval == ERROR_OK)
1650         {
1651                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1652                                   address,
1653                                   *value);
1654         }
1655         else
1656         {
1657                 *value = 0x0;
1658                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1659                                   address);
1660         }
1661
1662         return retval;
1663 }
1664
1665 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
1666 {
1667         int retval;
1668         uint8_t value_buf[4];
1669         if (!target_was_examined(target))
1670         {
1671                 LOG_ERROR("Target not examined yet");
1672                 return ERROR_FAIL;
1673         }
1674
1675         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1676                           address,
1677                           value);
1678
1679         target_buffer_set_u32(target, value_buf, value);
1680         if ((retval = target_write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1681         {
1682                 LOG_DEBUG("failed: %i", retval);
1683         }
1684
1685         return retval;
1686 }
1687
1688 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
1689 {
1690         int retval;
1691         uint8_t value_buf[2];
1692         if (!target_was_examined(target))
1693         {
1694                 LOG_ERROR("Target not examined yet");
1695                 return ERROR_FAIL;
1696         }
1697
1698         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
1699                           address,
1700                           value);
1701
1702         target_buffer_set_u16(target, value_buf, value);
1703         if ((retval = target_write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1704         {
1705                 LOG_DEBUG("failed: %i", retval);
1706         }
1707
1708         return retval;
1709 }
1710
1711 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
1712 {
1713         int retval;
1714         if (!target_was_examined(target))
1715         {
1716                 LOG_ERROR("Target not examined yet");
1717                 return ERROR_FAIL;
1718         }
1719
1720         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1721                           address, value);
1722
1723         if ((retval = target_write_memory(target, address, 1, 1, &value)) != ERROR_OK)
1724         {
1725                 LOG_DEBUG("failed: %i", retval);
1726         }
1727
1728         return retval;
1729 }
1730
1731 COMMAND_HANDLER(handle_targets_command)
1732 {
1733         struct target *target = all_targets;
1734
1735         if (CMD_ARGC == 1)
1736         {
1737                 target = get_target(CMD_ARGV[0]);
1738                 if (target == NULL) {
1739                         command_print(CMD_CTX,"Target: %s is unknown, try one of:\n", CMD_ARGV[0]);
1740                         goto DumpTargets;
1741                 }
1742                 if (!target->tap->enabled) {
1743                         command_print(CMD_CTX,"Target: TAP %s is disabled, "
1744                                         "can't be the current target\n",
1745                                         target->tap->dotted_name);
1746                         return ERROR_FAIL;
1747                 }
1748
1749                 CMD_CTX->current_target = target->target_number;
1750                 return ERROR_OK;
1751         }
1752 DumpTargets:
1753
1754         target = all_targets;
1755         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
1756         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
1757         while (target)
1758         {
1759                 const char *state;
1760                 char marker = ' ';
1761
1762                 if (target->tap->enabled)
1763                         state = target_state_name( target );
1764                 else
1765                         state = "tap-disabled";
1766
1767                 if (CMD_CTX->current_target == target->target_number)
1768                         marker = '*';
1769
1770                 /* keep columns lined up to match the headers above */
1771                 command_print(CMD_CTX, "%2d%c %-18s %-10s %-6s %-18s %s",
1772                                           target->target_number,
1773                                           marker,
1774                                           target_name(target),
1775                                           target_type_name(target),
1776                                           Jim_Nvp_value2name_simple(nvp_target_endian,
1777                                                                 target->endianness)->name,
1778                                           target->tap->dotted_name,
1779                                           state);
1780                 target = target->next;
1781         }
1782
1783         return ERROR_OK;
1784 }
1785
1786 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
1787
1788 static int powerDropout;
1789 static int srstAsserted;
1790
1791 static int runPowerRestore;
1792 static int runPowerDropout;
1793 static int runSrstAsserted;
1794 static int runSrstDeasserted;
1795
1796 static int sense_handler(void)
1797 {
1798         static int prevSrstAsserted = 0;
1799         static int prevPowerdropout = 0;
1800
1801         int retval;
1802         if ((retval = jtag_power_dropout(&powerDropout)) != ERROR_OK)
1803                 return retval;
1804
1805         int powerRestored;
1806         powerRestored = prevPowerdropout && !powerDropout;
1807         if (powerRestored)
1808         {
1809                 runPowerRestore = 1;
1810         }
1811
1812         long long current = timeval_ms();
1813         static long long lastPower = 0;
1814         int waitMore = lastPower + 2000 > current;
1815         if (powerDropout && !waitMore)
1816         {
1817                 runPowerDropout = 1;
1818                 lastPower = current;
1819         }
1820
1821         if ((retval = jtag_srst_asserted(&srstAsserted)) != ERROR_OK)
1822                 return retval;
1823
1824         int srstDeasserted;
1825         srstDeasserted = prevSrstAsserted && !srstAsserted;
1826
1827         static long long lastSrst = 0;
1828         waitMore = lastSrst + 2000 > current;
1829         if (srstDeasserted && !waitMore)
1830         {
1831                 runSrstDeasserted = 1;
1832                 lastSrst = current;
1833         }
1834
1835         if (!prevSrstAsserted && srstAsserted)
1836         {
1837                 runSrstAsserted = 1;
1838         }
1839
1840         prevSrstAsserted = srstAsserted;
1841         prevPowerdropout = powerDropout;
1842
1843         if (srstDeasserted || powerRestored)
1844         {
1845                 /* Other than logging the event we can't do anything here.
1846                  * Issuing a reset is a particularly bad idea as we might
1847                  * be inside a reset already.
1848                  */
1849         }
1850
1851         return ERROR_OK;
1852 }
1853
1854 static int backoff_times = 0;
1855 static int backoff_count = 0;
1856
1857 /* process target state changes */
1858 static int handle_target(void *priv)
1859 {
1860         Jim_Interp *interp = (Jim_Interp *)priv;
1861         int retval = ERROR_OK;
1862
1863         if (!is_jtag_poll_safe())
1864         {
1865                 /* polling is disabled currently */
1866                 return ERROR_OK;
1867         }
1868
1869         /* we do not want to recurse here... */
1870         static int recursive = 0;
1871         if (! recursive)
1872         {
1873                 recursive = 1;
1874                 sense_handler();
1875                 /* danger! running these procedures can trigger srst assertions and power dropouts.
1876                  * We need to avoid an infinite loop/recursion here and we do that by
1877                  * clearing the flags after running these events.
1878                  */
1879                 int did_something = 0;
1880                 if (runSrstAsserted)
1881                 {
1882                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
1883                         Jim_Eval(interp, "srst_asserted");
1884                         did_something = 1;
1885                 }
1886                 if (runSrstDeasserted)
1887                 {
1888                         Jim_Eval(interp, "srst_deasserted");
1889                         did_something = 1;
1890                 }
1891                 if (runPowerDropout)
1892                 {
1893                         LOG_INFO("Power dropout detected, running power_dropout proc.");
1894                         Jim_Eval(interp, "power_dropout");
1895                         did_something = 1;
1896                 }
1897                 if (runPowerRestore)
1898                 {
1899                         Jim_Eval(interp, "power_restore");
1900                         did_something = 1;
1901                 }
1902
1903                 if (did_something)
1904                 {
1905                         /* clear detect flags */
1906                         sense_handler();
1907                 }
1908
1909                 /* clear action flags */
1910
1911                 runSrstAsserted = 0;
1912                 runSrstDeasserted = 0;
1913                 runPowerRestore = 0;
1914                 runPowerDropout = 0;
1915
1916                 recursive = 0;
1917         }
1918
1919         if (backoff_times > backoff_count)
1920         {
1921                 /* do not poll this time as we failed previously */
1922                 backoff_count++;
1923                 return ERROR_OK;
1924         }
1925         backoff_count = 0;
1926
1927         /* Poll targets for state changes unless that's globally disabled.
1928          * Skip targets that are currently disabled.
1929          */
1930         for (struct target *target = all_targets;
1931                         is_jtag_poll_safe() && target;
1932                         target = target->next)
1933         {
1934                 if (!target->tap->enabled)
1935                         continue;
1936
1937                 /* only poll target if we've got power and srst isn't asserted */
1938                 if (!powerDropout && !srstAsserted)
1939                 {
1940                         /* polling may fail silently until the target has been examined */
1941                         if ((retval = target_poll(target)) != ERROR_OK)
1942                         {
1943                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
1944                                 if (backoff_times * polling_interval < 5000)
1945                                 {
1946                                         backoff_times *= 2;
1947                                         backoff_times++;
1948                                 }
1949                                 LOG_USER("Polling target failed, GDB will be halted. Polling again in %dms", backoff_times * polling_interval);
1950
1951                                 /* Tell GDB to halt the debugger. This allows the user to
1952                                  * run monitor commands to handle the situation.
1953                                  */
1954                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1955                                 return retval;
1956                         }
1957                         /* Since we succeeded, we reset backoff count */
1958                         if (backoff_times > 0)
1959                         {
1960                                 LOG_USER("Polling succeeded again");
1961                         }
1962                         backoff_times = 0;
1963                 }
1964         }
1965
1966         return retval;
1967 }
1968
1969 COMMAND_HANDLER(handle_reg_command)
1970 {
1971         struct target *target;
1972         struct reg *reg = NULL;
1973         unsigned count = 0;
1974         char *value;
1975
1976         LOG_DEBUG("-");
1977
1978         target = get_current_target(CMD_CTX);
1979
1980         /* list all available registers for the current target */
1981         if (CMD_ARGC == 0)
1982         {
1983                 struct reg_cache *cache = target->reg_cache;
1984
1985                 count = 0;
1986                 while (cache)
1987                 {
1988                         unsigned i;
1989
1990                         command_print(CMD_CTX, "===== %s", cache->name);
1991
1992                         for (i = 0, reg = cache->reg_list;
1993                                         i < cache->num_regs;
1994                                         i++, reg++, count++)
1995                         {
1996                                 /* only print cached values if they are valid */
1997                                 if (reg->valid) {
1998                                         value = buf_to_str(reg->value,
1999                                                         reg->size, 16);
2000                                         command_print(CMD_CTX,
2001                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2002                                                         count, reg->name,
2003                                                         reg->size, value,
2004                                                         reg->dirty
2005                                                                 ? " (dirty)"
2006                                                                 : "");
2007                                         free(value);
2008                                 } else {
2009                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2010                                                           count, reg->name,
2011                                                           reg->size) ;
2012                                 }
2013                         }
2014                         cache = cache->next;
2015                 }
2016
2017                 return ERROR_OK;
2018         }
2019
2020         /* access a single register by its ordinal number */
2021         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9'))
2022         {
2023                 unsigned num;
2024                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2025
2026                 struct reg_cache *cache = target->reg_cache;
2027                 count = 0;
2028                 while (cache)
2029                 {
2030                         unsigned i;
2031                         for (i = 0; i < cache->num_regs; i++)
2032                         {
2033                                 if (count++ == num)
2034                                 {
2035                                         reg = &cache->reg_list[i];
2036                                         break;
2037                                 }
2038                         }
2039                         if (reg)
2040                                 break;
2041                         cache = cache->next;
2042                 }
2043
2044                 if (!reg)
2045                 {
2046                         command_print(CMD_CTX, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
2047                         return ERROR_OK;
2048                 }
2049         } else /* access a single register by its name */
2050         {
2051                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2052
2053                 if (!reg)
2054                 {
2055                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2056                         return ERROR_OK;
2057                 }
2058         }
2059
2060         /* display a register */
2061         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0') && (CMD_ARGV[1][0] <= '9'))))
2062         {
2063                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2064                         reg->valid = 0;
2065
2066                 if (reg->valid == 0)
2067                 {
2068                         reg->type->get(reg);
2069                 }
2070                 value = buf_to_str(reg->value, reg->size, 16);
2071                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2072                 free(value);
2073                 return ERROR_OK;
2074         }
2075
2076         /* set register value */
2077         if (CMD_ARGC == 2)
2078         {
2079                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2080                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2081
2082                 reg->type->set(reg, buf);
2083
2084                 value = buf_to_str(reg->value, reg->size, 16);
2085                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2086                 free(value);
2087
2088                 free(buf);
2089
2090                 return ERROR_OK;
2091         }
2092
2093         command_print(CMD_CTX, "usage: reg <#|name> [value]");
2094
2095         return ERROR_OK;
2096 }
2097
2098 COMMAND_HANDLER(handle_poll_command)
2099 {
2100         int retval = ERROR_OK;
2101         struct target *target = get_current_target(CMD_CTX);
2102
2103         if (CMD_ARGC == 0)
2104         {
2105                 command_print(CMD_CTX, "background polling: %s",
2106                                 jtag_poll_get_enabled() ? "on" : "off");
2107                 command_print(CMD_CTX, "TAP: %s (%s)",
2108                                 target->tap->dotted_name,
2109                                 target->tap->enabled ? "enabled" : "disabled");
2110                 if (!target->tap->enabled)
2111                         return ERROR_OK;
2112                 if ((retval = target_poll(target)) != ERROR_OK)
2113                         return retval;
2114                 if ((retval = target_arch_state(target)) != ERROR_OK)
2115                         return retval;
2116         }
2117         else if (CMD_ARGC == 1)
2118         {
2119                 bool enable;
2120                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2121                 jtag_poll_set_enabled(enable);
2122         }
2123         else
2124         {
2125                 return ERROR_COMMAND_SYNTAX_ERROR;
2126         }
2127
2128         return retval;
2129 }
2130
2131 COMMAND_HANDLER(handle_wait_halt_command)
2132 {
2133         if (CMD_ARGC > 1)
2134                 return ERROR_COMMAND_SYNTAX_ERROR;
2135
2136         unsigned ms = 5000;
2137         if (1 == CMD_ARGC)
2138         {
2139                 int retval = parse_uint(CMD_ARGV[0], &ms);
2140                 if (ERROR_OK != retval)
2141                 {
2142                         command_print(CMD_CTX, "usage: %s [seconds]", CMD_NAME);
2143                         return ERROR_COMMAND_SYNTAX_ERROR;
2144                 }
2145                 // convert seconds (given) to milliseconds (needed)
2146                 ms *= 1000;
2147         }
2148
2149         struct target *target = get_current_target(CMD_CTX);
2150         return target_wait_state(target, TARGET_HALTED, ms);
2151 }
2152
2153 /* wait for target state to change. The trick here is to have a low
2154  * latency for short waits and not to suck up all the CPU time
2155  * on longer waits.
2156  *
2157  * After 500ms, keep_alive() is invoked
2158  */
2159 int target_wait_state(struct target *target, enum target_state state, int ms)
2160 {
2161         int retval;
2162         long long then = 0, cur;
2163         int once = 1;
2164
2165         for (;;)
2166         {
2167                 if ((retval = target_poll(target)) != ERROR_OK)
2168                         return retval;
2169                 if (target->state == state)
2170                 {
2171                         break;
2172                 }
2173                 cur = timeval_ms();
2174                 if (once)
2175                 {
2176                         once = 0;
2177                         then = timeval_ms();
2178                         LOG_DEBUG("waiting for target %s...",
2179                                 Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
2180                 }
2181
2182                 if (cur-then > 500)
2183                 {
2184                         keep_alive();
2185                 }
2186
2187                 if ((cur-then) > ms)
2188                 {
2189                         LOG_ERROR("timed out while waiting for target %s",
2190                                 Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
2191                         return ERROR_FAIL;
2192                 }
2193         }
2194
2195         return ERROR_OK;
2196 }
2197
2198 COMMAND_HANDLER(handle_halt_command)
2199 {
2200         LOG_DEBUG("-");
2201
2202         struct target *target = get_current_target(CMD_CTX);
2203         int retval = target_halt(target);
2204         if (ERROR_OK != retval)
2205                 return retval;
2206
2207         if (CMD_ARGC == 1)
2208         {
2209                 unsigned wait_local;
2210                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2211                 if (ERROR_OK != retval)
2212                         return ERROR_COMMAND_SYNTAX_ERROR;
2213                 if (!wait_local)
2214                         return ERROR_OK;
2215         }
2216
2217         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2218 }
2219
2220 COMMAND_HANDLER(handle_soft_reset_halt_command)
2221 {
2222         struct target *target = get_current_target(CMD_CTX);
2223
2224         LOG_USER("requesting target halt and executing a soft reset");
2225
2226         target->type->soft_reset_halt(target);
2227
2228         return ERROR_OK;
2229 }
2230
2231 COMMAND_HANDLER(handle_reset_command)
2232 {
2233         if (CMD_ARGC > 1)
2234                 return ERROR_COMMAND_SYNTAX_ERROR;
2235
2236         enum target_reset_mode reset_mode = RESET_RUN;
2237         if (CMD_ARGC == 1)
2238         {
2239                 const Jim_Nvp *n;
2240                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2241                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN)) {
2242                         return ERROR_COMMAND_SYNTAX_ERROR;
2243                 }
2244                 reset_mode = n->value;
2245         }
2246
2247         /* reset *all* targets */
2248         return target_process_reset(CMD_CTX, reset_mode);
2249 }
2250
2251
2252 COMMAND_HANDLER(handle_resume_command)
2253 {
2254         int current = 1;
2255         if (CMD_ARGC > 1)
2256                 return ERROR_COMMAND_SYNTAX_ERROR;
2257
2258         struct target *target = get_current_target(CMD_CTX);
2259         target_handle_event(target, TARGET_EVENT_OLD_pre_resume);
2260
2261         /* with no CMD_ARGV, resume from current pc, addr = 0,
2262          * with one arguments, addr = CMD_ARGV[0],
2263          * handle breakpoints, not debugging */
2264         uint32_t addr = 0;
2265         if (CMD_ARGC == 1)
2266         {
2267                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2268                 current = 0;
2269         }
2270
2271         return target_resume(target, current, addr, 1, 0);
2272 }
2273
2274 COMMAND_HANDLER(handle_step_command)
2275 {
2276         if (CMD_ARGC > 1)
2277                 return ERROR_COMMAND_SYNTAX_ERROR;
2278
2279         LOG_DEBUG("-");
2280
2281         /* with no CMD_ARGV, step from current pc, addr = 0,
2282          * with one argument addr = CMD_ARGV[0],
2283          * handle breakpoints, debugging */
2284         uint32_t addr = 0;
2285         int current_pc = 1;
2286         if (CMD_ARGC == 1)
2287         {
2288                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2289                 current_pc = 0;
2290         }
2291
2292         struct target *target = get_current_target(CMD_CTX);
2293
2294         return target->type->step(target, current_pc, addr, 1);
2295 }
2296
2297 static void handle_md_output(struct command_context *cmd_ctx,
2298                 struct target *target, uint32_t address, unsigned size,
2299                 unsigned count, const uint8_t *buffer)
2300 {
2301         const unsigned line_bytecnt = 32;
2302         unsigned line_modulo = line_bytecnt / size;
2303
2304         char output[line_bytecnt * 4 + 1];
2305         unsigned output_len = 0;
2306
2307         const char *value_fmt;
2308         switch (size) {
2309         case 4: value_fmt = "%8.8x "; break;
2310         case 2: value_fmt = "%4.4x "; break;
2311         case 1: value_fmt = "%2.2x "; break;
2312         default:
2313                 /* "can't happen", caller checked */
2314                 LOG_ERROR("invalid memory read size: %u", size);
2315                 return;
2316         }
2317
2318         for (unsigned i = 0; i < count; i++)
2319         {
2320                 if (i % line_modulo == 0)
2321                 {
2322                         output_len += snprintf(output + output_len,
2323                                         sizeof(output) - output_len,
2324                                         "0x%8.8x: ",
2325                                         (unsigned)(address + (i*size)));
2326                 }
2327
2328                 uint32_t value = 0;
2329                 const uint8_t *value_ptr = buffer + i * size;
2330                 switch (size) {
2331                 case 4: value = target_buffer_get_u32(target, value_ptr); break;
2332                 case 2: value = target_buffer_get_u16(target, value_ptr); break;
2333                 case 1: value = *value_ptr;
2334                 }
2335                 output_len += snprintf(output + output_len,
2336                                 sizeof(output) - output_len,
2337                                 value_fmt, value);
2338
2339                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1))
2340                 {
2341                         command_print(cmd_ctx, "%s", output);
2342                         output_len = 0;
2343                 }
2344         }
2345 }
2346
2347 COMMAND_HANDLER(handle_md_command)
2348 {
2349         if (CMD_ARGC < 1)
2350                 return ERROR_COMMAND_SYNTAX_ERROR;
2351
2352         unsigned size = 0;
2353         switch (CMD_NAME[2]) {
2354         case 'w': size = 4; break;
2355         case 'h': size = 2; break;
2356         case 'b': size = 1; break;
2357         default: return ERROR_COMMAND_SYNTAX_ERROR;
2358         }
2359
2360         bool physical=strcmp(CMD_ARGV[0], "phys")==0;
2361         int (*fn)(struct target *target,
2362                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2363         if (physical)
2364         {
2365                 CMD_ARGC--;
2366                 CMD_ARGV++;
2367                 fn=target_read_phys_memory;
2368         } else
2369         {
2370                 fn=target_read_memory;
2371         }
2372         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2373         {
2374                 return ERROR_COMMAND_SYNTAX_ERROR;
2375         }
2376
2377         uint32_t address;
2378         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2379
2380         unsigned count = 1;
2381         if (CMD_ARGC == 2)
2382                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2383
2384         uint8_t *buffer = calloc(count, size);
2385
2386         struct target *target = get_current_target(CMD_CTX);
2387         int retval = fn(target, address, size, count, buffer);
2388         if (ERROR_OK == retval)
2389                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2390
2391         free(buffer);
2392
2393         return retval;
2394 }
2395
2396 typedef int (*target_write_fn)(struct target *target,
2397                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2398
2399 static int target_write_memory_fast(struct target *target,
2400                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2401 {
2402         return target_write_buffer(target, address, size * count, buffer);
2403 }
2404
2405 static int target_fill_mem(struct target *target,
2406                 uint32_t address,
2407                 target_write_fn fn,
2408                 unsigned data_size,
2409                 /* value */
2410                 uint32_t b,
2411                 /* count */
2412                 unsigned c)
2413 {
2414         /* We have to write in reasonably large chunks to be able
2415          * to fill large memory areas with any sane speed */
2416         const unsigned chunk_size = 16384;
2417         uint8_t *target_buf = malloc(chunk_size * data_size);
2418         if (target_buf == NULL)
2419         {
2420                 LOG_ERROR("Out of memory");
2421                 return ERROR_FAIL;
2422         }
2423
2424         for (unsigned i = 0; i < chunk_size; i ++)
2425         {
2426                 switch (data_size)
2427                 {
2428                 case 4:
2429                         target_buffer_set_u32(target, target_buf + i*data_size, b);
2430                         break;
2431                 case 2:
2432                         target_buffer_set_u16(target, target_buf + i*data_size, b);
2433                         break;
2434                 case 1:
2435                         target_buffer_set_u8(target, target_buf + i*data_size, b);
2436                         break;
2437                 default:
2438                         exit(-1);
2439                 }
2440         }
2441
2442         int retval = ERROR_OK;
2443
2444         for (unsigned x = 0; x < c; x += chunk_size)
2445         {
2446                 unsigned current;
2447                 current = c - x;
2448                 if (current > chunk_size)
2449                 {
2450                         current = chunk_size;
2451                 }
2452                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2453                 if (retval != ERROR_OK)
2454                 {
2455                         break;
2456                 }
2457                 /* avoid GDB timeouts */
2458                 keep_alive();
2459         }
2460         free(target_buf);
2461
2462         return retval;
2463 }
2464
2465
2466 COMMAND_HANDLER(handle_mw_command)
2467 {
2468         if (CMD_ARGC < 2)
2469         {
2470                 return ERROR_COMMAND_SYNTAX_ERROR;
2471         }
2472         bool physical=strcmp(CMD_ARGV[0], "phys")==0;
2473         target_write_fn fn;
2474         if (physical)
2475         {
2476                 CMD_ARGC--;
2477                 CMD_ARGV++;
2478                 fn=target_write_phys_memory;
2479         } else
2480         {
2481                 fn = target_write_memory_fast;
2482         }
2483         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2484                 return ERROR_COMMAND_SYNTAX_ERROR;
2485
2486         uint32_t address;
2487         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2488
2489         uint32_t value;
2490         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2491
2492         unsigned count = 1;
2493         if (CMD_ARGC == 3)
2494                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2495
2496         struct target *target = get_current_target(CMD_CTX);
2497         unsigned wordsize;
2498         switch (CMD_NAME[2])
2499         {
2500                 case 'w':
2501                         wordsize = 4;
2502                         break;
2503                 case 'h':
2504                         wordsize = 2;
2505                         break;
2506                 case 'b':
2507                         wordsize = 1;
2508                         break;
2509                 default:
2510                         return ERROR_COMMAND_SYNTAX_ERROR;
2511         }
2512
2513         return target_fill_mem(target, address, fn, wordsize, value, count);
2514 }
2515
2516 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2517                 uint32_t *min_address, uint32_t *max_address)
2518 {
2519         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2520                 return ERROR_COMMAND_SYNTAX_ERROR;
2521
2522         /* a base address isn't always necessary,
2523          * default to 0x0 (i.e. don't relocate) */
2524         if (CMD_ARGC >= 2)
2525         {
2526                 uint32_t addr;
2527                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2528                 image->base_address = addr;
2529                 image->base_address_set = 1;
2530         }
2531         else
2532                 image->base_address_set = 0;
2533
2534         image->start_address_set = 0;
2535
2536         if (CMD_ARGC >= 4)
2537         {
2538                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2539         }
2540         if (CMD_ARGC == 5)
2541         {
2542                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2543                 // use size (given) to find max (required)
2544                 *max_address += *min_address;
2545         }
2546
2547         if (*min_address > *max_address)
2548                 return ERROR_COMMAND_SYNTAX_ERROR;
2549
2550         return ERROR_OK;
2551 }
2552
2553 COMMAND_HANDLER(handle_load_image_command)
2554 {
2555         uint8_t *buffer;
2556         size_t buf_cnt;
2557         uint32_t image_size;
2558         uint32_t min_address = 0;
2559         uint32_t max_address = 0xffffffff;
2560         int i;
2561         struct image image;
2562
2563         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2564                         &image, &min_address, &max_address);
2565         if (ERROR_OK != retval)
2566                 return retval;
2567
2568         struct target *target = get_current_target(CMD_CTX);
2569
2570         struct duration bench;
2571         duration_start(&bench);
2572
2573         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2574         {
2575                 return ERROR_OK;
2576         }
2577
2578         image_size = 0x0;
2579         retval = ERROR_OK;
2580         for (i = 0; i < image.num_sections; i++)
2581         {
2582                 buffer = malloc(image.sections[i].size);
2583                 if (buffer == NULL)
2584                 {
2585                         command_print(CMD_CTX,
2586                                                   "error allocating buffer for section (%d bytes)",
2587                                                   (int)(image.sections[i].size));
2588                         break;
2589                 }
2590
2591                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2592                 {
2593                         free(buffer);
2594                         break;
2595                 }
2596
2597                 uint32_t offset = 0;
2598                 uint32_t length = buf_cnt;
2599
2600                 /* DANGER!!! beware of unsigned comparision here!!! */
2601
2602                 if ((image.sections[i].base_address + buf_cnt >= min_address)&&
2603                                 (image.sections[i].base_address < max_address))
2604                 {
2605                         if (image.sections[i].base_address < min_address)
2606                         {
2607                                 /* clip addresses below */
2608                                 offset += min_address-image.sections[i].base_address;
2609                                 length -= offset;
2610                         }
2611
2612                         if (image.sections[i].base_address + buf_cnt > max_address)
2613                         {
2614                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2615                         }
2616
2617                         if ((retval = target_write_buffer(target, image.sections[i].base_address + offset, length, buffer + offset)) != ERROR_OK)
2618                         {
2619                                 free(buffer);
2620                                 break;
2621                         }
2622                         image_size += length;
2623                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2624                                                   (unsigned int)length,
2625                                                   image.sections[i].base_address + offset);
2626                 }
2627
2628                 free(buffer);
2629         }
2630
2631         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
2632         {
2633                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2634                                 "in %fs (%0.3f KiB/s)", image_size,
2635                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2636         }
2637
2638         image_close(&image);
2639
2640         return retval;
2641
2642 }
2643
2644 COMMAND_HANDLER(handle_dump_image_command)
2645 {
2646         struct fileio fileio;
2647         uint8_t buffer[560];
2648         int retval, retvaltemp;
2649         uint32_t address, size;
2650         struct duration bench;
2651         struct target *target = get_current_target(CMD_CTX);
2652
2653         if (CMD_ARGC != 3)
2654                 return ERROR_COMMAND_SYNTAX_ERROR;
2655
2656         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2657         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2658
2659         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2660         if (retval != ERROR_OK)
2661                 return retval;
2662
2663         duration_start(&bench);
2664
2665         retval = ERROR_OK;
2666         while (size > 0)
2667         {
2668                 size_t size_written;
2669                 uint32_t this_run_size = (size > 560) ? 560 : size;
2670                 retval = target_read_buffer(target, address, this_run_size, buffer);
2671                 if (retval != ERROR_OK)
2672                 {
2673                         break;
2674                 }
2675
2676                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2677                 if (retval != ERROR_OK)
2678                 {
2679                         break;
2680                 }
2681
2682                 size -= this_run_size;
2683                 address += this_run_size;
2684         }
2685
2686         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
2687         {
2688                 int filesize;
2689                 retval = fileio_size(&fileio, &filesize);
2690                 if (retval != ERROR_OK)
2691                         return retval;
2692                 command_print(CMD_CTX,
2693                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2694                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2695         }
2696
2697         if ((retvaltemp = fileio_close(&fileio)) != ERROR_OK)
2698                 return retvaltemp;
2699
2700         return retval;
2701 }
2702
2703 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2704 {
2705         uint8_t *buffer;
2706         size_t buf_cnt;
2707         uint32_t image_size;
2708         int i;
2709         int retval;
2710         uint32_t checksum = 0;
2711         uint32_t mem_checksum = 0;
2712
2713         struct image image;
2714
2715         struct target *target = get_current_target(CMD_CTX);
2716
2717         if (CMD_ARGC < 1)
2718         {
2719                 return ERROR_COMMAND_SYNTAX_ERROR;
2720         }
2721
2722         if (!target)
2723         {
2724                 LOG_ERROR("no target selected");
2725                 return ERROR_FAIL;
2726         }
2727
2728         struct duration bench;
2729         duration_start(&bench);
2730
2731         if (CMD_ARGC >= 2)
2732         {
2733                 uint32_t addr;
2734                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2735                 image.base_address = addr;
2736                 image.base_address_set = 1;
2737         }
2738         else
2739         {
2740                 image.base_address_set = 0;
2741                 image.base_address = 0x0;
2742         }
2743
2744         image.start_address_set = 0;
2745
2746         if ((retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL)) != ERROR_OK)
2747         {
2748                 return retval;
2749         }
2750
2751         image_size = 0x0;
2752         int diffs = 0;
2753         retval = ERROR_OK;
2754         for (i = 0; i < image.num_sections; i++)
2755         {
2756                 buffer = malloc(image.sections[i].size);
2757                 if (buffer == NULL)
2758                 {
2759                         command_print(CMD_CTX,
2760                                                   "error allocating buffer for section (%d bytes)",
2761                                                   (int)(image.sections[i].size));
2762                         break;
2763                 }
2764                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2765                 {
2766                         free(buffer);
2767                         break;
2768                 }
2769
2770                 if (verify)
2771                 {
2772                         /* calculate checksum of image */
2773                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
2774                         if (retval != ERROR_OK)
2775                         {
2776                                 free(buffer);
2777                                 break;
2778                         }
2779
2780                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2781                         if (retval != ERROR_OK)
2782                         {
2783                                 free(buffer);
2784                                 break;
2785                         }
2786
2787                         if (checksum != mem_checksum)
2788                         {
2789                                 /* failed crc checksum, fall back to a binary compare */
2790                                 uint8_t *data;
2791
2792                                 if (diffs == 0)
2793                                 {
2794                                         LOG_ERROR("checksum mismatch - attempting binary compare");
2795                                 }
2796
2797                                 data = (uint8_t*)malloc(buf_cnt);
2798
2799                                 /* Can we use 32bit word accesses? */
2800                                 int size = 1;
2801                                 int count = buf_cnt;
2802                                 if ((count % 4) == 0)
2803                                 {
2804                                         size *= 4;
2805                                         count /= 4;
2806                                 }
2807                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
2808                                 if (retval == ERROR_OK)
2809                                 {
2810                                         uint32_t t;
2811                                         for (t = 0; t < buf_cnt; t++)
2812                                         {
2813                                                 if (data[t] != buffer[t])
2814                                                 {
2815                                                         command_print(CMD_CTX,
2816                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
2817                                                                                   diffs,
2818                                                                                   (unsigned)(t + image.sections[i].base_address),
2819                                                                                   data[t],
2820                                                                                   buffer[t]);
2821                                                         if (diffs++ >= 127)
2822                                                         {
2823                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
2824                                                                 free(data);
2825                                                                 free(buffer);
2826                                                                 goto done;
2827                                                         }
2828                                                 }
2829                                                 keep_alive();
2830                                         }
2831                                 }
2832                                 free(data);
2833                         }
2834                 } else
2835                 {
2836                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
2837                                                   image.sections[i].base_address,
2838                                                   buf_cnt);
2839                 }
2840
2841                 free(buffer);
2842                 image_size += buf_cnt;
2843         }
2844         if (diffs > 0)
2845         {
2846                 command_print(CMD_CTX, "No more differences found.");
2847         }
2848 done:
2849         if (diffs > 0)
2850         {
2851                 retval = ERROR_FAIL;
2852         }
2853         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
2854         {
2855                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
2856                                 "in %fs (%0.3f KiB/s)", image_size,
2857                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2858         }
2859
2860         image_close(&image);
2861
2862         return retval;
2863 }
2864
2865 COMMAND_HANDLER(handle_verify_image_command)
2866 {
2867         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
2868 }
2869
2870 COMMAND_HANDLER(handle_test_image_command)
2871 {
2872         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
2873 }
2874
2875 static int handle_bp_command_list(struct command_context *cmd_ctx)
2876 {
2877         struct target *target = get_current_target(cmd_ctx);
2878         struct breakpoint *breakpoint = target->breakpoints;
2879         while (breakpoint)
2880         {
2881                 if (breakpoint->type == BKPT_SOFT)
2882                 {
2883                         char* buf = buf_to_str(breakpoint->orig_instr,
2884                                         breakpoint->length, 16);
2885                         command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
2886                                         breakpoint->address,
2887                                         breakpoint->length,
2888                                         breakpoint->set, buf);
2889                         free(buf);
2890                 }
2891                 else
2892                 {
2893                         command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i",
2894                                                   breakpoint->address,
2895                                                   breakpoint->length, breakpoint->set);
2896                 }
2897
2898                 breakpoint = breakpoint->next;
2899         }
2900         return ERROR_OK;
2901 }
2902
2903 static int handle_bp_command_set(struct command_context *cmd_ctx,
2904                 uint32_t addr, uint32_t length, int hw)
2905 {
2906         struct target *target = get_current_target(cmd_ctx);
2907         int retval = breakpoint_add(target, addr, length, hw);
2908         if (ERROR_OK == retval)
2909                 command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
2910         else
2911                 LOG_ERROR("Failure setting breakpoint");
2912         return retval;
2913 }
2914
2915 COMMAND_HANDLER(handle_bp_command)
2916 {
2917         if (CMD_ARGC == 0)
2918                 return handle_bp_command_list(CMD_CTX);
2919
2920         if (CMD_ARGC < 2 || CMD_ARGC > 3)
2921         {
2922                 command_print(CMD_CTX, "usage: bp <address> <length> ['hw']");
2923                 return ERROR_COMMAND_SYNTAX_ERROR;
2924         }
2925
2926         uint32_t addr;
2927         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2928         uint32_t length;
2929         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
2930
2931         int hw = BKPT_SOFT;
2932         if (CMD_ARGC == 3)
2933         {
2934                 if (strcmp(CMD_ARGV[2], "hw") == 0)
2935                         hw = BKPT_HARD;
2936                 else
2937                         return ERROR_COMMAND_SYNTAX_ERROR;
2938         }
2939
2940         return handle_bp_command_set(CMD_CTX, addr, length, hw);
2941 }
2942
2943 COMMAND_HANDLER(handle_rbp_command)
2944 {
2945         if (CMD_ARGC != 1)
2946                 return ERROR_COMMAND_SYNTAX_ERROR;
2947
2948         uint32_t addr;
2949         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2950
2951         struct target *target = get_current_target(CMD_CTX);
2952         breakpoint_remove(target, addr);
2953
2954         return ERROR_OK;
2955 }
2956
2957 COMMAND_HANDLER(handle_wp_command)
2958 {
2959         struct target *target = get_current_target(CMD_CTX);
2960
2961         if (CMD_ARGC == 0)
2962         {
2963                 struct watchpoint *watchpoint = target->watchpoints;
2964
2965                 while (watchpoint)
2966                 {
2967                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
2968                                         ", len: 0x%8.8" PRIx32
2969                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
2970                                         ", mask: 0x%8.8" PRIx32,
2971                                         watchpoint->address,
2972                                         watchpoint->length,
2973                                         (int)watchpoint->rw,
2974                                         watchpoint->value,
2975                                         watchpoint->mask);
2976                         watchpoint = watchpoint->next;
2977                 }
2978                 return ERROR_OK;
2979         }
2980
2981         enum watchpoint_rw type = WPT_ACCESS;
2982         uint32_t addr = 0;
2983         uint32_t length = 0;
2984         uint32_t data_value = 0x0;
2985         uint32_t data_mask = 0xffffffff;
2986
2987         switch (CMD_ARGC)
2988         {
2989         case 5:
2990                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
2991                 // fall through
2992         case 4:
2993                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
2994                 // fall through
2995         case 3:
2996                 switch (CMD_ARGV[2][0])
2997                 {
2998                 case 'r':
2999                         type = WPT_READ;
3000                         break;
3001                 case 'w':
3002                         type = WPT_WRITE;
3003                         break;
3004                 case 'a':
3005                         type = WPT_ACCESS;
3006                         break;
3007                 default:
3008                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3009                         return ERROR_COMMAND_SYNTAX_ERROR;
3010                 }
3011                 // fall through
3012         case 2:
3013                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3014                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3015                 break;
3016
3017         default:
3018                 command_print(CMD_CTX, "usage: wp [address length "
3019                                 "[(r|w|a) [value [mask]]]]");
3020                 return ERROR_COMMAND_SYNTAX_ERROR;
3021         }
3022
3023         int retval = watchpoint_add(target, addr, length, type,
3024                         data_value, data_mask);
3025         if (ERROR_OK != retval)
3026                 LOG_ERROR("Failure setting watchpoints");
3027
3028         return retval;
3029 }
3030
3031 COMMAND_HANDLER(handle_rwp_command)
3032 {
3033         if (CMD_ARGC != 1)
3034                 return ERROR_COMMAND_SYNTAX_ERROR;
3035
3036         uint32_t addr;
3037         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3038
3039         struct target *target = get_current_target(CMD_CTX);
3040         watchpoint_remove(target, addr);
3041
3042         return ERROR_OK;
3043 }
3044
3045
3046 /**
3047  * Translate a virtual address to a physical address.
3048  *
3049  * The low-level target implementation must have logged a detailed error
3050  * which is forwarded to telnet/GDB session.
3051  */
3052 COMMAND_HANDLER(handle_virt2phys_command)
3053 {
3054         if (CMD_ARGC != 1)
3055                 return ERROR_COMMAND_SYNTAX_ERROR;
3056
3057         uint32_t va;
3058         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3059         uint32_t pa;
3060
3061         struct target *target = get_current_target(CMD_CTX);
3062         int retval = target->type->virt2phys(target, va, &pa);
3063         if (retval == ERROR_OK)
3064                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3065
3066         return retval;
3067 }
3068
3069 static void writeData(FILE *f, const void *data, size_t len)
3070 {
3071         size_t written = fwrite(data, 1, len, f);
3072         if (written != len)
3073                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3074 }
3075
3076 static void writeLong(FILE *f, int l)
3077 {
3078         int i;
3079         for (i = 0; i < 4; i++)
3080         {
3081                 char c = (l >> (i*8))&0xff;
3082                 writeData(f, &c, 1);
3083         }
3084
3085 }
3086
3087 static void writeString(FILE *f, char *s)
3088 {
3089         writeData(f, s, strlen(s));
3090 }
3091
3092 /* Dump a gmon.out histogram file. */
3093 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3094 {
3095         uint32_t i;
3096         FILE *f = fopen(filename, "w");
3097         if (f == NULL)
3098                 return;
3099         writeString(f, "gmon");
3100         writeLong(f, 0x00000001); /* Version */
3101         writeLong(f, 0); /* padding */
3102         writeLong(f, 0); /* padding */
3103         writeLong(f, 0); /* padding */
3104
3105         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3106         writeData(f, &zero, 1);
3107
3108         /* figure out bucket size */
3109         uint32_t min = samples[0];
3110         uint32_t max = samples[0];
3111         for (i = 0; i < sampleNum; i++)
3112         {
3113                 if (min > samples[i])
3114                 {
3115                         min = samples[i];
3116                 }
3117                 if (max < samples[i])
3118                 {
3119                         max = samples[i];
3120                 }
3121         }
3122
3123         int addressSpace = (max-min + 1);
3124
3125         static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
3126         uint32_t length = addressSpace;
3127         if (length > maxBuckets)
3128         {
3129                 length = maxBuckets;
3130         }
3131         int *buckets = malloc(sizeof(int)*length);
3132         if (buckets == NULL)
3133         {
3134                 fclose(f);
3135                 return;
3136         }
3137         memset(buckets, 0, sizeof(int)*length);
3138         for (i = 0; i < sampleNum;i++)
3139         {
3140                 uint32_t address = samples[i];
3141                 long long a = address-min;
3142                 long long b = length-1;
3143                 long long c = addressSpace-1;
3144                 int index_t = (a*b)/c; /* danger!!!! int32 overflows */
3145                 buckets[index_t]++;
3146         }
3147
3148         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3149         writeLong(f, min);                      /* low_pc */
3150         writeLong(f, max);                      /* high_pc */
3151         writeLong(f, length);           /* # of samples */
3152         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3153         writeString(f, "seconds");
3154         for (i = 0; i < (15-strlen("seconds")); i++)
3155                 writeData(f, &zero, 1);
3156         writeString(f, "s");
3157
3158         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3159
3160         char *data = malloc(2*length);
3161         if (data != NULL)
3162         {
3163                 for (i = 0; i < length;i++)
3164                 {
3165                         int val;
3166                         val = buckets[i];
3167                         if (val > 65535)
3168                         {
3169                                 val = 65535;
3170                         }
3171                         data[i*2]=val&0xff;
3172                         data[i*2 + 1]=(val >> 8)&0xff;
3173                 }
3174                 free(buckets);
3175                 writeData(f, data, length * 2);
3176                 free(data);
3177         } else
3178         {
3179                 free(buckets);
3180         }
3181
3182         fclose(f);
3183 }
3184
3185 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3186  * which will be used as a random sampling of PC */
3187 COMMAND_HANDLER(handle_profile_command)
3188 {
3189         struct target *target = get_current_target(CMD_CTX);
3190         struct timeval timeout, now;
3191
3192         gettimeofday(&timeout, NULL);
3193         if (CMD_ARGC != 2)
3194         {
3195                 return ERROR_COMMAND_SYNTAX_ERROR;
3196         }
3197         unsigned offset;
3198         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3199
3200         timeval_add_time(&timeout, offset, 0);
3201
3202         /**
3203          * @todo: Some cores let us sample the PC without the
3204          * annoying halt/resume step; for example, ARMv7 PCSR.
3205          * Provide a way to use that more efficient mechanism.
3206          */
3207
3208         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3209
3210         static const int maxSample = 10000;
3211         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3212         if (samples == NULL)
3213                 return ERROR_OK;
3214
3215         int numSamples = 0;
3216         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3217         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3218
3219         for (;;)
3220         {
3221                 int retval;
3222                 target_poll(target);
3223                 if (target->state == TARGET_HALTED)
3224                 {
3225                         uint32_t t=*((uint32_t *)reg->value);
3226                         samples[numSamples++]=t;
3227                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
3228                         target_poll(target);
3229                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3230                 } else if (target->state == TARGET_RUNNING)
3231                 {
3232                         /* We want to quickly sample the PC. */
3233                         if ((retval = target_halt(target)) != ERROR_OK)
3234                         {
3235                                 free(samples);
3236                                 return retval;
3237                         }
3238                 } else
3239                 {
3240                         command_print(CMD_CTX, "Target not halted or running");
3241                         retval = ERROR_OK;
3242                         break;
3243                 }
3244                 if (retval != ERROR_OK)
3245                 {
3246                         break;
3247                 }
3248
3249                 gettimeofday(&now, NULL);
3250                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
3251                 {
3252                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3253                         if ((retval = target_poll(target)) != ERROR_OK)
3254                         {
3255                                 free(samples);
3256                                 return retval;
3257                         }
3258                         if (target->state == TARGET_HALTED)
3259                         {
3260                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
3261                         }
3262                         if ((retval = target_poll(target)) != ERROR_OK)
3263                         {
3264                                 free(samples);
3265                                 return retval;
3266                         }
3267                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3268                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3269                         break;
3270                 }
3271         }
3272         free(samples);
3273
3274         return ERROR_OK;
3275 }
3276
3277 static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t val)
3278 {
3279         char *namebuf;
3280         Jim_Obj *nameObjPtr, *valObjPtr;
3281         int result;
3282
3283         namebuf = alloc_printf("%s(%d)", varname, idx);
3284         if (!namebuf)
3285                 return JIM_ERR;
3286
3287         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3288         valObjPtr = Jim_NewIntObj(interp, val);
3289         if (!nameObjPtr || !valObjPtr)
3290         {
3291                 free(namebuf);
3292                 return JIM_ERR;
3293         }
3294
3295         Jim_IncrRefCount(nameObjPtr);
3296         Jim_IncrRefCount(valObjPtr);
3297         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3298         Jim_DecrRefCount(interp, nameObjPtr);
3299         Jim_DecrRefCount(interp, valObjPtr);
3300         free(namebuf);
3301         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3302         return result;
3303 }
3304
3305 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3306 {
3307         struct command_context *context;
3308         struct target *target;
3309
3310         context = current_command_context(interp);
3311         assert (context != NULL);
3312
3313         target = get_current_target(context);
3314         if (target == NULL)
3315         {
3316                 LOG_ERROR("mem2array: no current target");
3317                 return JIM_ERR;
3318         }
3319
3320         return  target_mem2array(interp, target, argc-1, argv + 1);
3321 }
3322
3323 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3324 {
3325         long l;
3326         uint32_t width;
3327         int len;
3328         uint32_t addr;
3329         uint32_t count;
3330         uint32_t v;
3331         const char *varname;
3332         int  n, e, retval;
3333         uint32_t i;
3334
3335         /* argv[1] = name of array to receive the data
3336          * argv[2] = desired width
3337          * argv[3] = memory address
3338          * argv[4] = count of times to read
3339          */
3340         if (argc != 4) {
3341                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3342                 return JIM_ERR;
3343         }
3344         varname = Jim_GetString(argv[0], &len);
3345         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3346
3347         e = Jim_GetLong(interp, argv[1], &l);
3348         width = l;
3349         if (e != JIM_OK) {
3350                 return e;
3351         }
3352
3353         e = Jim_GetLong(interp, argv[2], &l);
3354         addr = l;
3355         if (e != JIM_OK) {
3356                 return e;
3357         }
3358         e = Jim_GetLong(interp, argv[3], &l);
3359         len = l;
3360         if (e != JIM_OK) {
3361                 return e;
3362         }
3363         switch (width) {
3364                 case 8:
3365                         width = 1;
3366                         break;
3367                 case 16:
3368                         width = 2;
3369                         break;
3370                 case 32:
3371                         width = 4;
3372                         break;
3373                 default:
3374                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3375                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3376                         return JIM_ERR;
3377         }
3378         if (len == 0) {
3379                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3380                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3381                 return JIM_ERR;
3382         }
3383         if ((addr + (len * width)) < addr) {
3384                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3385                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3386                 return JIM_ERR;
3387         }
3388         /* absurd transfer size? */
3389         if (len > 65536) {
3390                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3391                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3392                 return JIM_ERR;
3393         }
3394
3395         if ((width == 1) ||
3396                 ((width == 2) && ((addr & 1) == 0)) ||
3397                 ((width == 4) && ((addr & 3) == 0))) {
3398                 /* all is well */
3399         } else {
3400                 char buf[100];
3401                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3402                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3403                                 addr,
3404                                 width);
3405                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3406                 return JIM_ERR;
3407         }
3408
3409         /* Transfer loop */
3410
3411         /* index counter */
3412         n = 0;
3413
3414         size_t buffersize = 4096;
3415         uint8_t *buffer = malloc(buffersize);
3416         if (buffer == NULL)
3417                 return JIM_ERR;
3418
3419         /* assume ok */
3420         e = JIM_OK;
3421         while (len) {
3422                 /* Slurp... in buffer size chunks */
3423
3424                 count = len; /* in objects.. */
3425                 if (count > (buffersize/width)) {
3426                         count = (buffersize/width);
3427                 }
3428
3429                 retval = target_read_memory(target, addr, width, count, buffer);
3430                 if (retval != ERROR_OK) {
3431                         /* BOO !*/
3432                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3433                                           (unsigned int)addr,
3434                                           (int)width,
3435                                           (int)count);
3436                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3437                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3438                         e = JIM_ERR;
3439                         len = 0;
3440                 } else {
3441                         v = 0; /* shut up gcc */
3442                         for (i = 0 ;i < count ;i++, n++) {
3443                                 switch (width) {
3444                                         case 4:
3445                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3446                                                 break;
3447                                         case 2:
3448                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3449                                                 break;
3450                                         case 1:
3451                                                 v = buffer[i] & 0x0ff;
3452                                                 break;
3453                                 }
3454                                 new_int_array_element(interp, varname, n, v);
3455                         }
3456                         len -= count;
3457                 }
3458         }
3459
3460         free(buffer);
3461
3462         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3463
3464         return JIM_OK;
3465 }
3466
3467 static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t *val)
3468 {
3469         char *namebuf;
3470         Jim_Obj *nameObjPtr, *valObjPtr;
3471         int result;
3472         long l;
3473
3474         namebuf = alloc_printf("%s(%d)", varname, idx);
3475         if (!namebuf)
3476                 return JIM_ERR;
3477
3478         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3479         if (!nameObjPtr)
3480         {
3481                 free(namebuf);
3482                 return JIM_ERR;
3483         }
3484
3485         Jim_IncrRefCount(nameObjPtr);
3486         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3487         Jim_DecrRefCount(interp, nameObjPtr);
3488         free(namebuf);
3489         if (valObjPtr == NULL)
3490                 return JIM_ERR;
3491
3492         result = Jim_GetLong(interp, valObjPtr, &l);
3493         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3494         *val = l;
3495         return result;
3496 }
3497
3498 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3499 {
3500         struct command_context *context;
3501         struct target *target;
3502
3503         context = current_command_context(interp);
3504         assert (context != NULL);
3505
3506         target = get_current_target(context);
3507         if (target == NULL) {
3508                 LOG_ERROR("array2mem: no current target");
3509                 return JIM_ERR;
3510         }
3511
3512         return target_array2mem(interp,target, argc-1, argv + 1);
3513 }
3514
3515 static int target_array2mem(Jim_Interp *interp, struct target *target,
3516                 int argc, Jim_Obj *const *argv)
3517 {
3518         long l;
3519         uint32_t width;
3520         int len;
3521         uint32_t addr;
3522         uint32_t count;
3523         uint32_t v;
3524         const char *varname;
3525         int  n, e, retval;
3526         uint32_t i;
3527
3528         /* argv[1] = name of array to get the data
3529          * argv[2] = desired width
3530          * argv[3] = memory address
3531          * argv[4] = count to write
3532          */
3533         if (argc != 4) {
3534                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3535                 return JIM_ERR;
3536         }
3537         varname = Jim_GetString(argv[0], &len);
3538         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3539
3540         e = Jim_GetLong(interp, argv[1], &l);
3541         width = l;
3542         if (e != JIM_OK) {
3543                 return e;
3544         }
3545
3546         e = Jim_GetLong(interp, argv[2], &l);
3547         addr = l;
3548         if (e != JIM_OK) {
3549                 return e;
3550         }
3551         e = Jim_GetLong(interp, argv[3], &l);
3552         len = l;
3553         if (e != JIM_OK) {
3554                 return e;
3555         }
3556         switch (width) {
3557                 case 8:
3558                         width = 1;
3559                         break;
3560                 case 16:
3561                         width = 2;
3562                         break;
3563                 case 32:
3564                         width = 4;
3565                         break;
3566                 default:
3567                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3568                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3569                         return JIM_ERR;
3570         }
3571         if (len == 0) {
3572                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3573                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL);
3574                 return JIM_ERR;
3575         }
3576         if ((addr + (len * width)) < addr) {
3577                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3578                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL);
3579                 return JIM_ERR;
3580         }
3581         /* absurd transfer size? */
3582         if (len > 65536) {
3583                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3584                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL);
3585                 return JIM_ERR;
3586         }
3587
3588         if ((width == 1) ||
3589                 ((width == 2) && ((addr & 1) == 0)) ||
3590                 ((width == 4) && ((addr & 3) == 0))) {
3591                 /* all is well */
3592         } else {
3593                 char buf[100];
3594                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3595                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3596                                 (unsigned int)addr,
3597                                 (int)width);
3598                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3599                 return JIM_ERR;
3600         }
3601
3602         /* Transfer loop */
3603
3604         /* index counter */
3605         n = 0;
3606         /* assume ok */
3607         e = JIM_OK;
3608
3609         size_t buffersize = 4096;
3610         uint8_t *buffer = malloc(buffersize);
3611         if (buffer == NULL)
3612                 return JIM_ERR;
3613
3614         while (len) {
3615                 /* Slurp... in buffer size chunks */
3616
3617                 count = len; /* in objects.. */
3618                 if (count > (buffersize/width)) {
3619                         count = (buffersize/width);
3620                 }
3621
3622                 v = 0; /* shut up gcc */
3623                 for (i = 0 ;i < count ;i++, n++) {
3624                         get_int_array_element(interp, varname, n, &v);
3625                         switch (width) {
3626                         case 4:
3627                                 target_buffer_set_u32(target, &buffer[i*width], v);
3628                                 break;
3629                         case 2:
3630                                 target_buffer_set_u16(target, &buffer[i*width], v);
3631                                 break;
3632                         case 1:
3633                                 buffer[i] = v & 0x0ff;
3634                                 break;
3635                         }
3636                 }
3637                 len -= count;
3638
3639                 retval = target_write_memory(target, addr, width, count, buffer);
3640                 if (retval != ERROR_OK) {
3641                         /* BOO !*/
3642                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3643                                           (unsigned int)addr,
3644                                           (int)width,
3645                                           (int)count);
3646                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3647                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3648                         e = JIM_ERR;
3649                         len = 0;
3650                 }
3651         }
3652
3653         free(buffer);
3654
3655         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3656
3657         return JIM_OK;
3658 }
3659
3660 /* FIX? should we propagate errors here rather than printing them
3661  * and continuing?
3662  */
3663 void target_handle_event(struct target *target, enum target_event e)
3664 {
3665         struct target_event_action *teap;
3666
3667         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3668                 if (teap->event == e) {
3669                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3670                                            target->target_number,
3671                                            target_name(target),
3672                                            target_type_name(target),
3673                                            e,
3674                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3675                                            Jim_GetString(teap->body, NULL));
3676                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK)
3677                         {
3678                                 Jim_MakeErrorMessage(teap->interp);
3679                                 command_print(NULL,"%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3680                         }
3681                 }
3682         }
3683 }
3684
3685 /**
3686  * Returns true only if the target has a handler for the specified event.
3687  */
3688 bool target_has_event_action(struct target *target, enum target_event event)
3689 {
3690         struct target_event_action *teap;
3691
3692         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3693                 if (teap->event == event)
3694                         return true;
3695         }
3696         return false;
3697 }
3698
3699 enum target_cfg_param {
3700         TCFG_TYPE,
3701         TCFG_EVENT,
3702         TCFG_WORK_AREA_VIRT,
3703         TCFG_WORK_AREA_PHYS,
3704         TCFG_WORK_AREA_SIZE,
3705         TCFG_WORK_AREA_BACKUP,
3706         TCFG_ENDIAN,
3707         TCFG_VARIANT,
3708         TCFG_COREID,
3709         TCFG_CHAIN_POSITION,
3710         TCFG_DBGBASE,
3711         TCFG_RTOS,
3712 };
3713
3714 static Jim_Nvp nvp_config_opts[] = {
3715         { .name = "-type",             .value = TCFG_TYPE },
3716         { .name = "-event",            .value = TCFG_EVENT },
3717         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3718         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3719         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3720         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3721         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3722         { .name = "-variant",          .value = TCFG_VARIANT },
3723         { .name = "-coreid",           .value = TCFG_COREID },
3724         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3725         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3726         { .name = "-rtos",             .value = TCFG_RTOS },
3727         { .name = NULL, .value = -1 }
3728 };
3729
3730 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3731 {
3732         Jim_Nvp *n;
3733         Jim_Obj *o;
3734         jim_wide w;
3735         char *cp;
3736         int e;
3737
3738         /* parse config or cget options ... */
3739         while (goi->argc > 0) {
3740                 Jim_SetEmptyResult(goi->interp);
3741                 /* Jim_GetOpt_Debug(goi); */
3742
3743                 if (target->type->target_jim_configure) {
3744                         /* target defines a configure function */
3745                         /* target gets first dibs on parameters */
3746                         e = (*(target->type->target_jim_configure))(target, goi);
3747                         if (e == JIM_OK) {
3748                                 /* more? */
3749                                 continue;
3750                         }
3751                         if (e == JIM_ERR) {
3752                                 /* An error */
3753                                 return e;
3754                         }
3755                         /* otherwise we 'continue' below */
3756                 }
3757                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
3758                 if (e != JIM_OK) {
3759                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
3760                         return e;
3761                 }
3762                 switch (n->value) {
3763                 case TCFG_TYPE:
3764                         /* not setable */
3765                         if (goi->isconfigure) {
3766                                 Jim_SetResultFormatted(goi->interp,
3767                                                 "not settable: %s", n->name);
3768                                 return JIM_ERR;
3769                         } else {
3770                         no_params:
3771                                 if (goi->argc != 0) {
3772                                         Jim_WrongNumArgs(goi->interp,
3773                                                         goi->argc, goi->argv,
3774                                                         "NO PARAMS");
3775                                         return JIM_ERR;
3776                                 }
3777                         }
3778                         Jim_SetResultString(goi->interp,
3779                                         target_type_name(target), -1);
3780                         /* loop for more */
3781                         break;
3782                 case TCFG_EVENT:
3783                         if (goi->argc == 0) {
3784                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
3785                                 return JIM_ERR;
3786                         }
3787
3788                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
3789                         if (e != JIM_OK) {
3790                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
3791                                 return e;
3792                         }
3793
3794                         if (goi->isconfigure) {
3795                                 if (goi->argc != 1) {
3796                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
3797                                         return JIM_ERR;
3798                                 }
3799                         } else {
3800                                 if (goi->argc != 0) {
3801                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
3802                                         return JIM_ERR;
3803                                 }
3804                         }
3805
3806                         {
3807                                 struct target_event_action *teap;
3808
3809                                 teap = target->event_action;
3810                                 /* replace existing? */
3811                                 while (teap) {
3812                                         if (teap->event == (enum target_event)n->value) {
3813                                                 break;
3814                                         }
3815                                         teap = teap->next;
3816                                 }
3817
3818                                 if (goi->isconfigure) {
3819                                         bool replace = true;
3820                                         if (teap == NULL) {
3821                                                 /* create new */
3822                                                 teap = calloc(1, sizeof(*teap));
3823                                                 replace = false;
3824                                         }
3825                                         teap->event = n->value;
3826                                         teap->interp = goi->interp;
3827                                         Jim_GetOpt_Obj(goi, &o);
3828                                         if (teap->body) {
3829                                                 Jim_DecrRefCount(teap->interp, teap->body);
3830                                         }
3831                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
3832                                         /*
3833                                          * FIXME:
3834                                          *     Tcl/TK - "tk events" have a nice feature.
3835                                          *     See the "BIND" command.
3836                                          *    We should support that here.
3837                                          *     You can specify %X and %Y in the event code.
3838                                          *     The idea is: %T - target name.
3839                                          *     The idea is: %N - target number
3840                                          *     The idea is: %E - event name.
3841                                          */
3842                                         Jim_IncrRefCount(teap->body);
3843
3844                                         if (!replace)
3845                                         {
3846                                                 /* add to head of event list */
3847                                                 teap->next = target->event_action;
3848                                                 target->event_action = teap;
3849                                         }
3850                                         Jim_SetEmptyResult(goi->interp);
3851                                 } else {
3852                                         /* get */
3853                                         if (teap == NULL) {
3854                                                 Jim_SetEmptyResult(goi->interp);
3855                                         } else {
3856                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
3857                                         }
3858                                 }
3859                         }
3860                         /* loop for more */
3861                         break;
3862
3863                 case TCFG_WORK_AREA_VIRT:
3864                         if (goi->isconfigure) {
3865                                 target_free_all_working_areas(target);
3866                                 e = Jim_GetOpt_Wide(goi, &w);
3867                                 if (e != JIM_OK) {
3868                                         return e;
3869                                 }
3870                                 target->working_area_virt = w;
3871                                 target->working_area_virt_spec = true;
3872                         } else {
3873                                 if (goi->argc != 0) {
3874                                         goto no_params;
3875                                 }
3876                         }
3877                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
3878                         /* loop for more */
3879                         break;
3880
3881                 case TCFG_WORK_AREA_PHYS:
3882                         if (goi->isconfigure) {
3883                                 target_free_all_working_areas(target);
3884                                 e = Jim_GetOpt_Wide(goi, &w);
3885                                 if (e != JIM_OK) {
3886                                         return e;
3887                                 }
3888                                 target->working_area_phys = w;
3889                                 target->working_area_phys_spec = true;
3890                         } else {
3891                                 if (goi->argc != 0) {
3892                                         goto no_params;
3893                                 }
3894                         }
3895                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
3896                         /* loop for more */
3897                         break;
3898
3899                 case TCFG_WORK_AREA_SIZE:
3900                         if (goi->isconfigure) {
3901                                 target_free_all_working_areas(target);
3902                                 e = Jim_GetOpt_Wide(goi, &w);
3903                                 if (e != JIM_OK) {
3904                                         return e;
3905                                 }
3906                                 target->working_area_size = w;
3907                         } else {
3908                                 if (goi->argc != 0) {
3909                                         goto no_params;
3910                                 }
3911                         }
3912                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
3913                         /* loop for more */
3914                         break;
3915
3916                 case TCFG_WORK_AREA_BACKUP:
3917                         if (goi->isconfigure) {
3918                                 target_free_all_working_areas(target);
3919                                 e = Jim_GetOpt_Wide(goi, &w);
3920                                 if (e != JIM_OK) {
3921                                         return e;
3922                                 }
3923                                 /* make this exactly 1 or 0 */
3924                                 target->backup_working_area = (!!w);
3925                         } else {
3926                                 if (goi->argc != 0) {
3927                                         goto no_params;
3928                                 }
3929                         }
3930                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
3931                         /* loop for more e*/
3932                         break;
3933
3934                 case TCFG_ENDIAN:
3935                         if (goi->isconfigure) {
3936                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
3937                                 if (e != JIM_OK) {
3938                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
3939                                         return e;
3940                                 }
3941                                 target->endianness = n->value;
3942                         } else {
3943                                 if (goi->argc != 0) {
3944                                         goto no_params;
3945                                 }
3946                         }
3947                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
3948                         if (n->name == NULL) {
3949                                 target->endianness = TARGET_LITTLE_ENDIAN;
3950                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
3951                         }
3952                         Jim_SetResultString(goi->interp, n->name, -1);
3953                         /* loop for more */
3954                         break;
3955
3956                 case TCFG_VARIANT:
3957                         if (goi->isconfigure) {
3958                                 if (goi->argc < 1) {
3959                                         Jim_SetResultFormatted(goi->interp,
3960                                                                                    "%s ?STRING?",
3961                                                                                    n->name);
3962                                         return JIM_ERR;
3963                                 }
3964                                 if (target->variant) {
3965                                         free((void *)(target->variant));
3966                                 }
3967                                 e = Jim_GetOpt_String(goi, &cp, NULL);
3968                                 target->variant = strdup(cp);
3969                         } else {
3970                                 if (goi->argc != 0) {
3971                                         goto no_params;
3972                                 }
3973                         }
3974                         Jim_SetResultString(goi->interp, target->variant,-1);
3975                         /* loop for more */
3976                         break;
3977
3978                 case TCFG_COREID:
3979                         if (goi->isconfigure) {
3980                                 e = Jim_GetOpt_Wide(goi, &w);
3981                                 if (e != JIM_OK) {
3982                                         return e;
3983                                 }
3984                                 target->coreid = (int)w;
3985                         } else {
3986                                 if (goi->argc != 0) {
3987                                         goto no_params;
3988                                 }
3989                         }
3990                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
3991                         /* loop for more */
3992                         break;
3993
3994                 case TCFG_CHAIN_POSITION:
3995                         if (goi->isconfigure) {
3996                                 Jim_Obj *o_t;
3997                                 struct jtag_tap *tap;
3998                                 target_free_all_working_areas(target);
3999                                 e = Jim_GetOpt_Obj(goi, &o_t);
4000                                 if (e != JIM_OK) {
4001                                         return e;
4002                                 }
4003                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4004                                 if (tap == NULL) {
4005                                         return JIM_ERR;
4006                                 }
4007                                 /* make this exactly 1 or 0 */
4008                                 target->tap = tap;
4009                         } else {
4010                                 if (goi->argc != 0) {
4011                                         goto no_params;
4012                                 }
4013                         }
4014                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4015                         /* loop for more e*/
4016                         break;
4017                 case TCFG_DBGBASE:
4018                         if (goi->isconfigure) {
4019                                 e = Jim_GetOpt_Wide(goi, &w);
4020                                 if (e != JIM_OK) {
4021                                         return e;
4022                                 }
4023                                 target->dbgbase = (uint32_t)w;
4024                                 target->dbgbase_set = true;
4025                         } else {
4026                                 if (goi->argc != 0) {
4027                                         goto no_params;
4028                                 }
4029                         }
4030                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4031                         /* loop for more */
4032                         break;
4033
4034                 case TCFG_RTOS:
4035                         /* RTOS */
4036                         {
4037                                 int result = rtos_create( goi, target );
4038                                 if ( result != JIM_OK )
4039                                 {
4040                                         return result;
4041                                 }
4042                         }
4043                         /* loop for more */
4044                         break;
4045                 }
4046         } /* while (goi->argc) */
4047
4048
4049                 /* done - we return */
4050         return JIM_OK;
4051 }
4052
4053 static int
4054 jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4055 {
4056         Jim_GetOptInfo goi;
4057
4058         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4059         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4060         int need_args = 1 + goi.isconfigure;
4061         if (goi.argc < need_args)
4062         {
4063                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4064                         goi.isconfigure
4065                                 ? "missing: -option VALUE ..."
4066                                 : "missing: -option ...");
4067                 return JIM_ERR;
4068         }
4069         struct target *target = Jim_CmdPrivData(goi.interp);
4070         return target_configure(&goi, target);
4071 }
4072
4073 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4074 {
4075         const char *cmd_name = Jim_GetString(argv[0], NULL);
4076
4077         Jim_GetOptInfo goi;
4078         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4079
4080         if (goi.argc < 2 || goi.argc > 4)
4081         {
4082                 Jim_SetResultFormatted(goi.interp,
4083                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4084                 return JIM_ERR;
4085         }
4086
4087         target_write_fn fn;
4088         fn = target_write_memory_fast;
4089
4090         int e;
4091         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0)
4092         {
4093                 /* consume it */
4094                 struct Jim_Obj *obj;
4095                 e = Jim_GetOpt_Obj(&goi, &obj);
4096                 if (e != JIM_OK)
4097                         return e;
4098
4099                 fn = target_write_phys_memory;
4100         }
4101
4102         jim_wide a;
4103         e = Jim_GetOpt_Wide(&goi, &a);
4104         if (e != JIM_OK)
4105                 return e;
4106
4107         jim_wide b;
4108         e = Jim_GetOpt_Wide(&goi, &b);
4109         if (e != JIM_OK)
4110                 return e;
4111
4112         jim_wide c = 1;
4113         if (goi.argc == 1)
4114         {
4115                 e = Jim_GetOpt_Wide(&goi, &c);
4116                 if (e != JIM_OK)
4117                         return e;
4118         }
4119
4120         /* all args must be consumed */
4121         if (goi.argc != 0)
4122         {
4123                 return JIM_ERR;
4124         }
4125
4126         struct target *target = Jim_CmdPrivData(goi.interp);
4127         unsigned data_size;
4128         if (strcasecmp(cmd_name, "mww") == 0) {
4129                 data_size = 4;
4130         }
4131         else if (strcasecmp(cmd_name, "mwh") == 0) {
4132                 data_size = 2;
4133         }
4134         else if (strcasecmp(cmd_name, "mwb") == 0) {
4135                 data_size = 1;
4136         } else {
4137                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4138                 return JIM_ERR;
4139         }
4140
4141         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4142 }
4143
4144 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4145 {
4146         const char *cmd_name = Jim_GetString(argv[0], NULL);
4147
4148         Jim_GetOptInfo goi;
4149         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4150
4151         if ((goi.argc < 1) || (goi.argc > 3))
4152         {
4153                 Jim_SetResultFormatted(goi.interp,
4154                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4155                 return JIM_ERR;
4156         }
4157
4158         int (*fn)(struct target *target,
4159                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4160         fn=target_read_memory;
4161
4162         int e;
4163         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0)
4164         {
4165                 /* consume it */
4166                 struct Jim_Obj *obj;
4167                 e = Jim_GetOpt_Obj(&goi, &obj);
4168                 if (e != JIM_OK)
4169                         return e;
4170
4171                 fn=target_read_phys_memory;
4172         }
4173
4174         jim_wide a;
4175         e = Jim_GetOpt_Wide(&goi, &a);
4176         if (e != JIM_OK) {
4177                 return JIM_ERR;
4178         }
4179         jim_wide c;
4180         if (goi.argc == 1) {
4181                 e = Jim_GetOpt_Wide(&goi, &c);
4182                 if (e != JIM_OK) {
4183                         return JIM_ERR;
4184                 }
4185         } else {
4186                 c = 1;
4187         }
4188
4189         /* all args must be consumed */
4190         if (goi.argc != 0)
4191         {
4192                 return JIM_ERR;
4193         }
4194
4195         jim_wide b = 1; /* shut up gcc */
4196         if (strcasecmp(cmd_name, "mdw") == 0)
4197                 b = 4;
4198         else if (strcasecmp(cmd_name, "mdh") == 0)
4199                 b = 2;
4200         else if (strcasecmp(cmd_name, "mdb") == 0)
4201                 b = 1;
4202         else {
4203                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4204                 return JIM_ERR;
4205         }
4206
4207         /* convert count to "bytes" */
4208         c = c * b;
4209
4210         struct target *target = Jim_CmdPrivData(goi.interp);
4211         uint8_t  target_buf[32];
4212         jim_wide x, y, z;
4213         while (c > 0) {
4214                 y = c;
4215                 if (y > 16) {
4216                         y = 16;
4217                 }
4218                 e = fn(target, a, b, y / b, target_buf);
4219                 if (e != ERROR_OK) {
4220                         char tmp[10];
4221                         snprintf(tmp, sizeof(tmp), "%08lx", (long)a);
4222                         Jim_SetResultFormatted(interp, "error reading target @ 0x%s", tmp);
4223                         return JIM_ERR;
4224                 }
4225
4226                 command_print(NULL, "0x%08x ", (int)(a));
4227                 switch (b) {
4228                 case 4:
4229                         for (x = 0; x < 16 && x < y; x += 4)
4230                         {
4231                                 z = target_buffer_get_u32(target, &(target_buf[ x ]));
4232                                 command_print(NULL, "%08x ", (int)(z));
4233                         }
4234                         for (; (x < 16) ; x += 4) {
4235                                 command_print(NULL, "         ");
4236                         }
4237                         break;
4238                 case 2:
4239                         for (x = 0; x < 16 && x < y; x += 2)
4240                         {
4241                                 z = target_buffer_get_u16(target, &(target_buf[ x ]));
4242                                 command_print(NULL, "%04x ", (int)(z));
4243                         }
4244                         for (; (x < 16) ; x += 2) {
4245                                 command_print(NULL, "     ");
4246                         }
4247                         break;
4248                 case 1:
4249                 default:
4250                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4251                                 z = target_buffer_get_u8(target, &(target_buf[ x ]));
4252                                 command_print(NULL, "%02x ", (int)(z));
4253                         }
4254                         for (; (x < 16) ; x += 1) {
4255                                 command_print(NULL, "   ");
4256                         }
4257                         break;
4258                 }
4259                 /* ascii-ify the bytes */
4260                 for (x = 0 ; x < y ; x++) {
4261                         if ((target_buf[x] >= 0x20) &&
4262                                 (target_buf[x] <= 0x7e)) {
4263                                 /* good */
4264                         } else {
4265                                 /* smack it */
4266                                 target_buf[x] = '.';
4267                         }
4268                 }
4269                 /* space pad  */
4270                 while (x < 16) {
4271                         target_buf[x] = ' ';
4272                         x++;
4273                 }
4274                 /* terminate */
4275                 target_buf[16] = 0;
4276                 /* print - with a newline */
4277                 command_print(NULL, "%s\n", target_buf);
4278                 /* NEXT... */
4279                 c -= 16;
4280                 a += 16;
4281         }
4282         return JIM_OK;
4283 }
4284
4285 static int jim_target_mem2array(Jim_Interp *interp,
4286                 int argc, Jim_Obj *const *argv)
4287 {
4288         struct target *target = Jim_CmdPrivData(interp);
4289         return target_mem2array(interp, target, argc - 1, argv + 1);
4290 }
4291
4292 static int jim_target_array2mem(Jim_Interp *interp,
4293                 int argc, Jim_Obj *const *argv)
4294 {
4295         struct target *target = Jim_CmdPrivData(interp);
4296         return target_array2mem(interp, target, argc - 1, argv + 1);
4297 }
4298
4299 static int jim_target_tap_disabled(Jim_Interp *interp)
4300 {
4301         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4302         return JIM_ERR;
4303 }
4304
4305 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4306 {
4307         if (argc != 1)
4308         {
4309                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4310                 return JIM_ERR;
4311         }
4312         struct target *target = Jim_CmdPrivData(interp);
4313         if (!target->tap->enabled)
4314                 return jim_target_tap_disabled(interp);
4315
4316         int e = target->type->examine(target);
4317         if (e != ERROR_OK)
4318         {
4319                 return JIM_ERR;
4320         }
4321         return JIM_OK;
4322 }
4323
4324 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4325 {
4326         if (argc != 1)
4327         {
4328                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4329                 return JIM_ERR;
4330         }
4331         struct target *target = Jim_CmdPrivData(interp);
4332
4333         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4334                 return JIM_ERR;
4335
4336         return JIM_OK;
4337 }
4338
4339 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4340 {
4341         if (argc != 1)
4342         {
4343                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4344                 return JIM_ERR;
4345         }
4346         struct target *target = Jim_CmdPrivData(interp);
4347         if (!target->tap->enabled)
4348                 return jim_target_tap_disabled(interp);
4349
4350         int e;
4351         if (!(target_was_examined(target))) {
4352                 e = ERROR_TARGET_NOT_EXAMINED;
4353         } else {
4354                 e = target->type->poll(target);
4355         }
4356         if (e != ERROR_OK)
4357         {
4358                 return JIM_ERR;
4359         }
4360         return JIM_OK;
4361 }
4362
4363 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4364 {
4365         Jim_GetOptInfo goi;
4366         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4367
4368         if (goi.argc != 2)
4369         {
4370                 Jim_WrongNumArgs(interp, 0, argv,
4371                                 "([tT]|[fF]|assert|deassert) BOOL");
4372                 return JIM_ERR;
4373         }
4374
4375         Jim_Nvp *n;
4376         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4377         if (e != JIM_OK)
4378         {
4379                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4380                 return e;
4381         }
4382         /* the halt or not param */
4383         jim_wide a;
4384         e = Jim_GetOpt_Wide(&goi, &a);
4385         if (e != JIM_OK)
4386                 return e;
4387
4388         struct target *target = Jim_CmdPrivData(goi.interp);
4389         if (!target->tap->enabled)
4390                 return jim_target_tap_disabled(interp);
4391         if (!(target_was_examined(target)))
4392         {
4393                 LOG_ERROR("Target not examined yet");
4394                 return ERROR_TARGET_NOT_EXAMINED;
4395         }
4396         if (!target->type->assert_reset || !target->type->deassert_reset)
4397         {
4398                 Jim_SetResultFormatted(interp,
4399                                 "No target-specific reset for %s",
4400                                 target_name(target));
4401                 return JIM_ERR;
4402         }
4403         /* determine if we should halt or not. */
4404         target->reset_halt = !!a;
4405         /* When this happens - all workareas are invalid. */
4406         target_free_all_working_areas_restore(target, 0);
4407
4408         /* do the assert */
4409         if (n->value == NVP_ASSERT) {
4410                 e = target->type->assert_reset(target);
4411         } else {
4412                 e = target->type->deassert_reset(target);
4413         }
4414         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4415 }
4416
4417 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4418 {
4419         if (argc != 1) {
4420                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4421                 return JIM_ERR;
4422         }
4423         struct target *target = Jim_CmdPrivData(interp);
4424         if (!target->tap->enabled)
4425                 return jim_target_tap_disabled(interp);
4426         int e = target->type->halt(target);
4427         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4428 }
4429
4430 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4431 {
4432         Jim_GetOptInfo goi;
4433         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4434
4435         /* params:  <name>  statename timeoutmsecs */
4436         if (goi.argc != 2)
4437         {
4438                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4439                 Jim_SetResultFormatted(goi.interp,
4440                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4441                 return JIM_ERR;
4442         }
4443
4444         Jim_Nvp *n;
4445         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4446         if (e != JIM_OK) {
4447                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state,1);
4448                 return e;
4449         }
4450         jim_wide a;
4451         e = Jim_GetOpt_Wide(&goi, &a);
4452         if (e != JIM_OK) {
4453                 return e;
4454         }
4455         struct target *target = Jim_CmdPrivData(interp);
4456         if (!target->tap->enabled)
4457                 return jim_target_tap_disabled(interp);
4458
4459         e = target_wait_state(target, n->value, a);
4460         if (e != ERROR_OK)
4461         {
4462                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4463                 Jim_SetResultFormatted(goi.interp,
4464                                 "target: %s wait %s fails (%#s) %s",
4465                                 target_name(target), n->name,
4466                                 eObj, target_strerror_safe(e));
4467                 Jim_FreeNewObj(interp, eObj);
4468                 return JIM_ERR;
4469         }
4470         return JIM_OK;
4471 }
4472 /* List for human, Events defined for this target.
4473  * scripts/programs should use 'name cget -event NAME'
4474  */
4475 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4476 {
4477         struct command_context *cmd_ctx = current_command_context(interp);
4478         assert (cmd_ctx != NULL);
4479
4480         struct target *target = Jim_CmdPrivData(interp);
4481         struct target_event_action *teap = target->event_action;
4482         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4483                                    target->target_number,
4484                                    target_name(target));
4485         command_print(cmd_ctx, "%-25s | Body", "Event");
4486         command_print(cmd_ctx, "------------------------- | "
4487                         "----------------------------------------");
4488         while (teap)
4489         {
4490                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4491                 command_print(cmd_ctx, "%-25s | %s",
4492                                 opt->name, Jim_GetString(teap->body, NULL));
4493                 teap = teap->next;
4494         }
4495         command_print(cmd_ctx, "***END***");
4496         return JIM_OK;
4497 }
4498 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4499 {
4500         if (argc != 1)
4501         {
4502                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4503                 return JIM_ERR;
4504         }
4505         struct target *target = Jim_CmdPrivData(interp);
4506         Jim_SetResultString(interp, target_state_name(target), -1);
4507         return JIM_OK;
4508 }
4509 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4510 {
4511         Jim_GetOptInfo goi;
4512         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4513         if (goi.argc != 1)
4514         {
4515                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4516                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4517                 return JIM_ERR;
4518         }
4519         Jim_Nvp *n;
4520         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4521         if (e != JIM_OK)
4522         {
4523                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4524                 return e;
4525         }
4526         struct target *target = Jim_CmdPrivData(interp);
4527         target_handle_event(target, n->value);
4528         return JIM_OK;
4529 }
4530
4531 static const struct command_registration target_instance_command_handlers[] = {
4532         {
4533                 .name = "configure",
4534                 .mode = COMMAND_CONFIG,
4535                 .jim_handler = jim_target_configure,
4536                 .help  = "configure a new target for use",
4537                 .usage = "[target_attribute ...]",
4538         },
4539         {
4540                 .name = "cget",
4541                 .mode = COMMAND_ANY,
4542                 .jim_handler = jim_target_configure,
4543                 .help  = "returns the specified target attribute",
4544                 .usage = "target_attribute",
4545         },
4546         {
4547                 .name = "mww",
4548                 .mode = COMMAND_EXEC,
4549                 .jim_handler = jim_target_mw,
4550                 .help = "Write 32-bit word(s) to target memory",
4551                 .usage = "address data [count]",
4552         },
4553         {
4554                 .name = "mwh",
4555                 .mode = COMMAND_EXEC,
4556                 .jim_handler = jim_target_mw,
4557                 .help = "Write 16-bit half-word(s) to target memory",
4558                 .usage = "address data [count]",
4559         },
4560         {
4561                 .name = "mwb",
4562                 .mode = COMMAND_EXEC,
4563                 .jim_handler = jim_target_mw,
4564                 .help = "Write byte(s) to target memory",
4565                 .usage = "address data [count]",
4566         },
4567         {
4568                 .name = "mdw",
4569                 .mode = COMMAND_EXEC,
4570                 .jim_handler = jim_target_md,
4571                 .help = "Display target memory as 32-bit words",
4572                 .usage = "address [count]",
4573         },
4574         {
4575                 .name = "mdh",
4576                 .mode = COMMAND_EXEC,
4577                 .jim_handler = jim_target_md,
4578                 .help = "Display target memory as 16-bit half-words",
4579                 .usage = "address [count]",
4580         },
4581         {
4582                 .name = "mdb",
4583                 .mode = COMMAND_EXEC,
4584                 .jim_handler = jim_target_md,
4585                 .help = "Display target memory as 8-bit bytes",
4586                 .usage = "address [count]",
4587         },
4588         {
4589                 .name = "array2mem",
4590                 .mode = COMMAND_EXEC,
4591                 .jim_handler = jim_target_array2mem,
4592                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4593                         "to target memory",
4594                 .usage = "arrayname bitwidth address count",
4595         },
4596         {
4597                 .name = "mem2array",
4598                 .mode = COMMAND_EXEC,
4599                 .jim_handler = jim_target_mem2array,
4600                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4601                         "from target memory",
4602                 .usage = "arrayname bitwidth address count",
4603         },
4604         {
4605                 .name = "eventlist",
4606                 .mode = COMMAND_EXEC,
4607                 .jim_handler = jim_target_event_list,
4608                 .help = "displays a table of events defined for this target",
4609         },
4610         {
4611                 .name = "curstate",
4612                 .mode = COMMAND_EXEC,
4613                 .jim_handler = jim_target_current_state,
4614                 .help = "displays the current state of this target",
4615         },
4616         {
4617                 .name = "arp_examine",
4618                 .mode = COMMAND_EXEC,
4619                 .jim_handler = jim_target_examine,
4620                 .help = "used internally for reset processing",
4621         },
4622         {
4623                 .name = "arp_halt_gdb",
4624                 .mode = COMMAND_EXEC,
4625                 .jim_handler = jim_target_halt_gdb,
4626                 .help = "used internally for reset processing to halt GDB",
4627         },
4628         {
4629                 .name = "arp_poll",
4630                 .mode = COMMAND_EXEC,
4631                 .jim_handler = jim_target_poll,
4632                 .help = "used internally for reset processing",
4633         },
4634         {
4635                 .name = "arp_reset",
4636                 .mode = COMMAND_EXEC,
4637                 .jim_handler = jim_target_reset,
4638                 .help = "used internally for reset processing",
4639         },
4640         {
4641                 .name = "arp_halt",
4642                 .mode = COMMAND_EXEC,
4643                 .jim_handler = jim_target_halt,
4644                 .help = "used internally for reset processing",
4645         },
4646         {
4647                 .name = "arp_waitstate",
4648                 .mode = COMMAND_EXEC,
4649                 .jim_handler = jim_target_wait_state,
4650                 .help = "used internally for reset processing",
4651         },
4652         {
4653                 .name = "invoke-event",
4654                 .mode = COMMAND_EXEC,
4655                 .jim_handler = jim_target_invoke_event,
4656                 .help = "invoke handler for specified event",
4657                 .usage = "event_name",
4658         },
4659         COMMAND_REGISTRATION_DONE
4660 };
4661
4662 static int target_create(Jim_GetOptInfo *goi)
4663 {
4664         Jim_Obj *new_cmd;
4665         Jim_Cmd *cmd;
4666         const char *cp;
4667         char *cp2;
4668         int e;
4669         int x;
4670         struct target *target;
4671         struct command_context *cmd_ctx;
4672
4673         cmd_ctx = current_command_context(goi->interp);
4674         assert (cmd_ctx != NULL);
4675
4676         if (goi->argc < 3) {
4677                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4678                 return JIM_ERR;
4679         }
4680
4681         /* COMMAND */
4682         Jim_GetOpt_Obj(goi, &new_cmd);
4683         /* does this command exist? */
4684         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4685         if (cmd) {
4686                 cp = Jim_GetString(new_cmd, NULL);
4687                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4688                 return JIM_ERR;
4689         }
4690
4691         /* TYPE */
4692         e = Jim_GetOpt_String(goi, &cp2, NULL);
4693         cp = cp2;
4694         /* now does target type exist */
4695         for (x = 0 ; target_types[x] ; x++) {
4696                 if (0 == strcmp(cp, target_types[x]->name)) {
4697                         /* found */
4698                         break;
4699                 }
4700         }
4701         if (target_types[x] == NULL) {
4702                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4703                 for (x = 0 ; target_types[x] ; x++) {
4704                         if (target_types[x + 1]) {
4705                                 Jim_AppendStrings(goi->interp,
4706                                                                    Jim_GetResult(goi->interp),
4707                                                                    target_types[x]->name,
4708                                                                    ", ", NULL);
4709                         } else {
4710                                 Jim_AppendStrings(goi->interp,
4711                                                                    Jim_GetResult(goi->interp),
4712                                                                    " or ",
4713                                                                    target_types[x]->name,NULL);
4714                         }
4715                 }
4716                 return JIM_ERR;
4717         }
4718
4719         /* Create it */
4720         target = calloc(1,sizeof(struct target));
4721         /* set target number */
4722         target->target_number = new_target_number();
4723
4724         /* allocate memory for each unique target type */
4725         target->type = (struct target_type*)calloc(1,sizeof(struct target_type));
4726
4727         memcpy(target->type, target_types[x], sizeof(struct target_type));
4728
4729         /* will be set by "-endian" */
4730         target->endianness = TARGET_ENDIAN_UNKNOWN;
4731
4732         /* default to first core, override with -coreid */
4733         target->coreid = 0;
4734
4735         target->working_area        = 0x0;
4736         target->working_area_size   = 0x0;
4737         target->working_areas       = NULL;
4738         target->backup_working_area = 0;
4739
4740         target->state               = TARGET_UNKNOWN;
4741         target->debug_reason        = DBG_REASON_UNDEFINED;
4742         target->reg_cache           = NULL;
4743         target->breakpoints         = NULL;
4744         target->watchpoints         = NULL;
4745         target->next                = NULL;
4746         target->arch_info           = NULL;
4747
4748         target->display             = 1;
4749
4750         target->halt_issued                     = false;
4751
4752         /* initialize trace information */
4753         target->trace_info = malloc(sizeof(struct trace));
4754         target->trace_info->num_trace_points         = 0;
4755         target->trace_info->trace_points_size        = 0;
4756         target->trace_info->trace_points             = NULL;
4757         target->trace_info->trace_history_size       = 0;
4758         target->trace_info->trace_history            = NULL;
4759         target->trace_info->trace_history_pos        = 0;
4760         target->trace_info->trace_history_overflowed = 0;
4761
4762         target->dbgmsg          = NULL;
4763         target->dbg_msg_enabled = 0;
4764
4765         target->endianness = TARGET_ENDIAN_UNKNOWN;
4766
4767         target->rtos = NULL;
4768         target->rtos_auto_detect = false;
4769
4770         /* Do the rest as "configure" options */
4771         goi->isconfigure = 1;
4772         e = target_configure(goi, target);
4773
4774         if (target->tap == NULL)
4775         {
4776                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
4777                 e = JIM_ERR;
4778         }
4779
4780         if (e != JIM_OK) {
4781                 free(target->type);
4782                 free(target);
4783                 return e;
4784         }
4785
4786         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
4787                 /* default endian to little if not specified */
4788                 target->endianness = TARGET_LITTLE_ENDIAN;
4789         }
4790
4791         /* incase variant is not set */
4792         if (!target->variant)
4793                 target->variant = strdup("");
4794
4795         cp = Jim_GetString(new_cmd, NULL);
4796         target->cmd_name = strdup(cp);
4797
4798         /* create the target specific commands */
4799         if (target->type->commands) {
4800                 e = register_commands(cmd_ctx, NULL, target->type->commands);
4801                 if (ERROR_OK != e)
4802                         LOG_ERROR("unable to register '%s' commands", cp);
4803         }
4804         if (target->type->target_create) {
4805                 (*(target->type->target_create))(target, goi->interp);
4806         }
4807
4808         /* append to end of list */
4809         {
4810                 struct target **tpp;
4811                 tpp = &(all_targets);
4812                 while (*tpp) {
4813                         tpp = &((*tpp)->next);
4814                 }
4815                 *tpp = target;
4816         }
4817
4818         /* now - create the new target name command */
4819         const const struct command_registration target_subcommands[] = {
4820                 {
4821                         .chain = target_instance_command_handlers,
4822                 },
4823                 {
4824                         .chain = target->type->commands,
4825                 },
4826                 COMMAND_REGISTRATION_DONE
4827         };
4828         const const struct command_registration target_commands[] = {
4829                 {
4830                         .name = cp,
4831                         .mode = COMMAND_ANY,
4832                         .help = "target command group",
4833                         .chain = target_subcommands,
4834                 },
4835                 COMMAND_REGISTRATION_DONE
4836         };
4837         e = register_commands(cmd_ctx, NULL, target_commands);
4838         if (ERROR_OK != e)
4839                 return JIM_ERR;
4840
4841         struct command *c = command_find_in_context(cmd_ctx, cp);
4842         assert(c);
4843         command_set_handler_data(c, target);
4844
4845         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
4846 }
4847
4848 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4849 {
4850         if (argc != 1)
4851         {
4852                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
4853                 return JIM_ERR;
4854         }
4855         struct command_context *cmd_ctx = current_command_context(interp);
4856         assert (cmd_ctx != NULL);
4857
4858         Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1);
4859         return JIM_OK;
4860 }
4861
4862 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4863 {
4864         if (argc != 1)
4865         {
4866                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
4867                 return JIM_ERR;
4868         }
4869         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
4870         for (unsigned x = 0; NULL != target_types[x]; x++)
4871         {
4872                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
4873                         Jim_NewStringObj(interp, target_types[x]->name, -1));
4874         }
4875         return JIM_OK;
4876 }
4877
4878 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4879 {
4880         if (argc != 1)
4881         {
4882                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
4883                 return JIM_ERR;
4884         }
4885         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
4886         struct target *target = all_targets;
4887         while (target)
4888         {
4889                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
4890                         Jim_NewStringObj(interp, target_name(target), -1));
4891                 target = target->next;
4892         }
4893         return JIM_OK;
4894 }
4895
4896 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4897 {
4898         Jim_GetOptInfo goi;
4899         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4900         if (goi.argc < 3)
4901         {
4902                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4903                         "<name> <target_type> [<target_options> ...]");
4904                 return JIM_ERR;
4905         }
4906         return target_create(&goi);
4907 }
4908
4909 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4910 {
4911         Jim_GetOptInfo goi;
4912         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4913
4914         /* It's OK to remove this mechanism sometime after August 2010 or so */
4915         LOG_WARNING("don't use numbers as target identifiers; use names");
4916         if (goi.argc != 1)
4917         {
4918                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
4919                 return JIM_ERR;
4920         }
4921         jim_wide w;
4922         int e = Jim_GetOpt_Wide(&goi, &w);
4923         if (e != JIM_OK)
4924                 return JIM_ERR;
4925
4926         struct target *target;
4927         for (target = all_targets; NULL != target; target = target->next)
4928         {
4929                 if (target->target_number != w)
4930                         continue;
4931
4932                 Jim_SetResultString(goi.interp, target_name(target), -1);
4933                 return JIM_OK;
4934         }
4935         {
4936                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
4937                 Jim_SetResultFormatted(goi.interp,
4938                         "Target: number %#s does not exist", wObj);
4939                 Jim_FreeNewObj(interp, wObj);
4940         }
4941         return JIM_ERR;
4942 }
4943
4944 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4945 {
4946         if (argc != 1)
4947         {
4948                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
4949                 return JIM_ERR;
4950         }
4951         unsigned count = 0;
4952         struct target *target = all_targets;
4953         while (NULL != target)
4954         {
4955                 target = target->next;
4956                 count++;
4957         }
4958         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
4959         return JIM_OK;
4960 }
4961
4962 static const struct command_registration target_subcommand_handlers[] = {
4963         {
4964                 .name = "init",
4965                 .mode = COMMAND_CONFIG,
4966                 .handler = handle_target_init_command,
4967                 .help = "initialize targets",
4968         },
4969         {
4970                 .name = "create",
4971                 /* REVISIT this should be COMMAND_CONFIG ... */
4972                 .mode = COMMAND_ANY,
4973                 .jim_handler = jim_target_create,
4974                 .usage = "name type '-chain-position' name [options ...]",
4975                 .help = "Creates and selects a new target",
4976         },
4977         {
4978                 .name = "current",
4979                 .mode = COMMAND_ANY,
4980                 .jim_handler = jim_target_current,
4981                 .help = "Returns the currently selected target",
4982         },
4983         {
4984                 .name = "types",
4985                 .mode = COMMAND_ANY,
4986                 .jim_handler = jim_target_types,
4987                 .help = "Returns the available target types as "
4988                                 "a list of strings",
4989         },
4990         {
4991                 .name = "names",
4992                 .mode = COMMAND_ANY,
4993                 .jim_handler = jim_target_names,
4994                 .help = "Returns the names of all targets as a list of strings",
4995         },
4996         {
4997                 .name = "number",
4998                 .mode = COMMAND_ANY,
4999                 .jim_handler = jim_target_number,
5000                 .usage = "number",
5001                 .help = "Returns the name of the numbered target "
5002                         "(DEPRECATED)",
5003         },
5004         {
5005                 .name = "count",
5006                 .mode = COMMAND_ANY,
5007                 .jim_handler = jim_target_count,
5008                 .help = "Returns the number of targets as an integer "
5009                         "(DEPRECATED)",
5010         },
5011         COMMAND_REGISTRATION_DONE
5012 };
5013
5014 struct FastLoad
5015 {
5016         uint32_t address;
5017         uint8_t *data;
5018         int length;
5019
5020 };
5021
5022 static int fastload_num;
5023 static struct FastLoad *fastload;
5024
5025 static void free_fastload(void)
5026 {
5027         if (fastload != NULL)
5028         {
5029                 int i;
5030                 for (i = 0; i < fastload_num; i++)
5031                 {
5032                         if (fastload[i].data)
5033                                 free(fastload[i].data);
5034                 }
5035                 free(fastload);
5036                 fastload = NULL;
5037         }
5038 }
5039
5040
5041
5042
5043 COMMAND_HANDLER(handle_fast_load_image_command)
5044 {
5045         uint8_t *buffer;
5046         size_t buf_cnt;
5047         uint32_t image_size;
5048         uint32_t min_address = 0;
5049         uint32_t max_address = 0xffffffff;
5050         int i;
5051
5052         struct image image;
5053
5054         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5055                         &image, &min_address, &max_address);
5056         if (ERROR_OK != retval)
5057                 return retval;
5058
5059         struct duration bench;
5060         duration_start(&bench);
5061
5062         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5063         if (retval != ERROR_OK)
5064         {
5065                 return retval;
5066         }
5067
5068         image_size = 0x0;
5069         retval = ERROR_OK;
5070         fastload_num = image.num_sections;
5071         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5072         if (fastload == NULL)
5073         {
5074                 command_print(CMD_CTX, "out of memory");
5075                 image_close(&image);
5076                 return ERROR_FAIL;
5077         }
5078         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5079         for (i = 0; i < image.num_sections; i++)
5080         {
5081                 buffer = malloc(image.sections[i].size);
5082                 if (buffer == NULL)
5083                 {
5084                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5085                                                   (int)(image.sections[i].size));
5086                         retval = ERROR_FAIL;
5087                         break;
5088                 }
5089
5090                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
5091                 {
5092                         free(buffer);
5093                         break;
5094                 }
5095
5096                 uint32_t offset = 0;
5097                 uint32_t length = buf_cnt;
5098
5099
5100                 /* DANGER!!! beware of unsigned comparision here!!! */
5101
5102                 if ((image.sections[i].base_address + buf_cnt >= min_address)&&
5103                                 (image.sections[i].base_address < max_address))
5104                 {
5105                         if (image.sections[i].base_address < min_address)
5106                         {
5107                                 /* clip addresses below */
5108                                 offset += min_address-image.sections[i].base_address;
5109                                 length -= offset;
5110                         }
5111
5112                         if (image.sections[i].base_address + buf_cnt > max_address)
5113                         {
5114                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5115                         }
5116
5117                         fastload[i].address = image.sections[i].base_address + offset;
5118                         fastload[i].data = malloc(length);
5119                         if (fastload[i].data == NULL)
5120                         {
5121                                 free(buffer);
5122                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5123                                                           length);
5124                                 retval = ERROR_FAIL;
5125                                 break;
5126                         }
5127                         memcpy(fastload[i].data, buffer + offset, length);
5128                         fastload[i].length = length;
5129
5130                         image_size += length;
5131                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5132                                                   (unsigned int)length,
5133                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5134                 }
5135
5136                 free(buffer);
5137         }
5138
5139         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
5140         {
5141                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5142                                 "in %fs (%0.3f KiB/s)", image_size,
5143                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5144
5145                 command_print(CMD_CTX,
5146                                 "WARNING: image has not been loaded to target!"
5147                                 "You can issue a 'fast_load' to finish loading.");
5148         }
5149
5150         image_close(&image);
5151
5152         if (retval != ERROR_OK)
5153         {
5154                 free_fastload();
5155         }
5156
5157         return retval;
5158 }
5159
5160 COMMAND_HANDLER(handle_fast_load_command)
5161 {
5162         if (CMD_ARGC > 0)
5163                 return ERROR_COMMAND_SYNTAX_ERROR;
5164         if (fastload == NULL)
5165         {
5166                 LOG_ERROR("No image in memory");
5167                 return ERROR_FAIL;
5168         }
5169         int i;
5170         int ms = timeval_ms();
5171         int size = 0;
5172         int retval = ERROR_OK;
5173         for (i = 0; i < fastload_num;i++)
5174         {
5175                 struct target *target = get_current_target(CMD_CTX);
5176                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5177                                           (unsigned int)(fastload[i].address),
5178                                           (unsigned int)(fastload[i].length));
5179                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5180                 if (retval != ERROR_OK)
5181                 {
5182                         break;
5183                 }
5184                 size += fastload[i].length;
5185         }
5186         if (retval == ERROR_OK)
5187         {
5188                 int after = timeval_ms();
5189                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5190         }
5191         return retval;
5192 }
5193
5194 static const struct command_registration target_command_handlers[] = {
5195         {
5196                 .name = "targets",
5197                 .handler = handle_targets_command,
5198                 .mode = COMMAND_ANY,
5199                 .help = "change current default target (one parameter) "
5200                         "or prints table of all targets (no parameters)",
5201                 .usage = "[target]",
5202         },
5203         {
5204                 .name = "target",
5205                 .mode = COMMAND_CONFIG,
5206                 .help = "configure target",
5207
5208                 .chain = target_subcommand_handlers,
5209         },
5210         COMMAND_REGISTRATION_DONE
5211 };
5212
5213 int target_register_commands(struct command_context *cmd_ctx)
5214 {
5215         return register_commands(cmd_ctx, NULL, target_command_handlers);
5216 }
5217
5218 static bool target_reset_nag = true;
5219
5220 bool get_target_reset_nag(void)
5221 {
5222         return target_reset_nag;
5223 }
5224
5225 COMMAND_HANDLER(handle_target_reset_nag)
5226 {
5227         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5228                         &target_reset_nag, "Nag after each reset about options to improve "
5229                         "performance");
5230 }
5231
5232 static const struct command_registration target_exec_command_handlers[] = {
5233         {
5234                 .name = "fast_load_image",
5235                 .handler = handle_fast_load_image_command,
5236                 .mode = COMMAND_ANY,
5237                 .help = "Load image into server memory for later use by "
5238                         "fast_load; primarily for profiling",
5239                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5240                         "[min_address [max_length]]",
5241         },
5242         {
5243                 .name = "fast_load",
5244                 .handler = handle_fast_load_command,
5245                 .mode = COMMAND_EXEC,
5246                 .help = "loads active fast load image to current target "
5247                         "- mainly for profiling purposes",
5248         },
5249         {
5250                 .name = "profile",
5251                 .handler = handle_profile_command,
5252                 .mode = COMMAND_EXEC,
5253                 .help = "profiling samples the CPU PC",
5254         },
5255         /** @todo don't register virt2phys() unless target supports it */
5256         {
5257                 .name = "virt2phys",
5258                 .handler = handle_virt2phys_command,
5259                 .mode = COMMAND_ANY,
5260                 .help = "translate a virtual address into a physical address",
5261                 .usage = "virtual_address",
5262         },
5263         {
5264                 .name = "reg",
5265                 .handler = handle_reg_command,
5266                 .mode = COMMAND_EXEC,
5267                 .help = "display or set a register; with no arguments, "
5268                         "displays all registers and their values",
5269                 .usage = "[(register_name|register_number) [value]]",
5270         },
5271         {
5272                 .name = "poll",
5273                 .handler = handle_poll_command,
5274                 .mode = COMMAND_EXEC,
5275                 .help = "poll target state; or reconfigure background polling",
5276                 .usage = "['on'|'off']",
5277         },
5278         {
5279                 .name = "wait_halt",
5280                 .handler = handle_wait_halt_command,
5281                 .mode = COMMAND_EXEC,
5282                 .help = "wait up to the specified number of milliseconds "
5283                         "(default 5) for a previously requested halt",
5284                 .usage = "[milliseconds]",
5285         },
5286         {
5287                 .name = "halt",
5288                 .handler = handle_halt_command,
5289                 .mode = COMMAND_EXEC,
5290                 .help = "request target to halt, then wait up to the specified"
5291                         "number of milliseconds (default 5) for it to complete",
5292                 .usage = "[milliseconds]",
5293         },
5294         {
5295                 .name = "resume",
5296                 .handler = handle_resume_command,
5297                 .mode = COMMAND_EXEC,
5298                 .help = "resume target execution from current PC or address",
5299                 .usage = "[address]",
5300         },
5301         {
5302                 .name = "reset",
5303                 .handler = handle_reset_command,
5304                 .mode = COMMAND_EXEC,
5305                 .usage = "[run|halt|init]",
5306                 .help = "Reset all targets into the specified mode."
5307                         "Default reset mode is run, if not given.",
5308         },
5309         {
5310                 .name = "soft_reset_halt",
5311                 .handler = handle_soft_reset_halt_command,
5312                 .mode = COMMAND_EXEC,
5313                 .help = "halt the target and do a soft reset",
5314         },
5315         {
5316                 .name = "step",
5317                 .handler = handle_step_command,
5318                 .mode = COMMAND_EXEC,
5319                 .help = "step one instruction from current PC or address",
5320                 .usage = "[address]",
5321         },
5322         {
5323                 .name = "mdw",
5324                 .handler = handle_md_command,
5325                 .mode = COMMAND_EXEC,
5326                 .help = "display memory words",
5327                 .usage = "['phys'] address [count]",
5328         },
5329         {
5330                 .name = "mdh",
5331                 .handler = handle_md_command,
5332                 .mode = COMMAND_EXEC,
5333                 .help = "display memory half-words",
5334                 .usage = "['phys'] address [count]",
5335         },
5336         {
5337                 .name = "mdb",
5338                 .handler = handle_md_command,
5339                 .mode = COMMAND_EXEC,
5340                 .help = "display memory bytes",
5341                 .usage = "['phys'] address [count]",
5342         },
5343         {
5344                 .name = "mww",
5345                 .handler = handle_mw_command,
5346                 .mode = COMMAND_EXEC,
5347                 .help = "write memory word",
5348                 .usage = "['phys'] address value [count]",
5349         },
5350         {
5351                 .name = "mwh",
5352                 .handler = handle_mw_command,
5353                 .mode = COMMAND_EXEC,
5354                 .help = "write memory half-word",
5355                 .usage = "['phys'] address value [count]",
5356         },
5357         {
5358                 .name = "mwb",
5359                 .handler = handle_mw_command,
5360                 .mode = COMMAND_EXEC,
5361                 .help = "write memory byte",
5362                 .usage = "['phys'] address value [count]",
5363         },
5364         {
5365                 .name = "bp",
5366                 .handler = handle_bp_command,
5367                 .mode = COMMAND_EXEC,
5368                 .help = "list or set hardware or software breakpoint",
5369                 .usage = "[address length ['hw']]",
5370         },
5371         {
5372                 .name = "rbp",
5373                 .handler = handle_rbp_command,
5374                 .mode = COMMAND_EXEC,
5375                 .help = "remove breakpoint",
5376                 .usage = "address",
5377         },
5378         {
5379                 .name = "wp",
5380                 .handler = handle_wp_command,
5381                 .mode = COMMAND_EXEC,
5382                 .help = "list (no params) or create watchpoints",
5383                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5384         },
5385         {
5386                 .name = "rwp",
5387                 .handler = handle_rwp_command,
5388                 .mode = COMMAND_EXEC,
5389                 .help = "remove watchpoint",
5390                 .usage = "address",
5391         },
5392         {
5393                 .name = "load_image",
5394                 .handler = handle_load_image_command,
5395                 .mode = COMMAND_EXEC,
5396                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5397                         "[min_address] [max_length]",
5398         },
5399         {
5400                 .name = "dump_image",
5401                 .handler = handle_dump_image_command,
5402                 .mode = COMMAND_EXEC,
5403                 .usage = "filename address size",
5404         },
5405         {
5406                 .name = "verify_image",
5407                 .handler = handle_verify_image_command,
5408                 .mode = COMMAND_EXEC,
5409                 .usage = "filename [offset [type]]",
5410         },
5411         {
5412                 .name = "test_image",
5413                 .handler = handle_test_image_command,
5414                 .mode = COMMAND_EXEC,
5415                 .usage = "filename [offset [type]]",
5416         },
5417         {
5418                 .name = "mem2array",
5419                 .mode = COMMAND_EXEC,
5420                 .jim_handler = jim_mem2array,
5421                 .help = "read 8/16/32 bit memory and return as a TCL array "
5422                         "for script processing",
5423                 .usage = "arrayname bitwidth address count",
5424         },
5425         {
5426                 .name = "array2mem",
5427                 .mode = COMMAND_EXEC,
5428                 .jim_handler = jim_array2mem,
5429                 .help = "convert a TCL array to memory locations "
5430                         "and write the 8/16/32 bit values",
5431                 .usage = "arrayname bitwidth address count",
5432         },
5433         {
5434                 .name = "reset_nag",
5435                 .handler = handle_target_reset_nag,
5436                 .mode = COMMAND_ANY,
5437                 .help = "Nag after each reset about options that could have been "
5438                                 "enabled to improve performance. ",
5439                 .usage = "['enable'|'disable']",
5440         },
5441         COMMAND_REGISTRATION_DONE
5442 };
5443 static int target_register_user_commands(struct command_context *cmd_ctx)
5444 {
5445         int retval = ERROR_OK;
5446         if ((retval = target_request_register_commands(cmd_ctx)) != ERROR_OK)
5447                 return retval;
5448
5449         if ((retval = trace_register_commands(cmd_ctx)) != ERROR_OK)
5450                 return retval;
5451
5452
5453         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5454 }