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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2009 SoftPLC Corporation                                *
   9  *       http://softplc.com                                                *
  10  *   dick@softplc.com                                                      *
  11  *                                                                         *
  12  *   Copyright (C) 2009 Zachary T Welch                                    *
  13  *   zw@superlucidity.net                                                  *
  14  *                                                                         *
  15  *   This program is free software; you can redistribute it and/or modify  *
  16  *   it under the terms of the GNU General Public License as published by  *
  17  *   the Free Software Foundation; either version 2 of the License, or     *
  18  *   (at your option) any later version.                                   *
  19  *                                                                         *
  20  *   This program is distributed in the hope that it will be useful,       *
  21  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  22  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  23  *   GNU General Public License for more details.                          *
  24  *                                                                         *
  25  *   You should have received a copy of the GNU General Public License     *
  26  *   along with this program; if not, write to the                         *
  27  *   Free Software Foundation, Inc.,                                       *
  28  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  29  ***************************************************************************/
  30 #ifdef HAVE_CONFIG_H
  31 #include "config.h"
  32 #endif
  33
  34 #include "jtag.h"
  35 #include "minidriver.h"
  36 #include "interface.h"
  37
  38 #ifdef HAVE_STRINGS_H
  39 #include <strings.h>
  40 #endif
  41
  42 static const Jim_Nvp nvp_jtag_tap_event[] = {
  43         { .value = JTAG_TAP_EVENT_ENABLE,       .name = "tap-enable" },
  44         { .value = JTAG_TAP_EVENT_DISABLE,      .name = "tap-disable" },
  45
  46         { .name = NULL, .value = -1 }
  47 };
  48
  49 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
  50  */
  51
  52 #if BUILD_ECOSBOARD == 1
  53         extern jtag_interface_t zy1000_interface;
  54 #elif defined(BUILD_MINIDRIVER_DUMMY)
  55         extern jtag_interface_t minidummy_interface;
  56 #else // standard drivers
  57 #if BUILD_PARPORT == 1
  58         extern jtag_interface_t parport_interface;
  59 #endif
  60
  61 #if BUILD_DUMMY == 1
  62         extern jtag_interface_t dummy_interface;
  63 #endif
  64
  65 #if BUILD_FT2232_FTD2XX == 1
  66         extern jtag_interface_t ft2232_interface;
  67 #endif
  68
  69 #if BUILD_FT2232_LIBFTDI == 1
  70         extern jtag_interface_t ft2232_interface;
  71 #endif
  72
  73 #if BUILD_AMTJTAGACCEL == 1
  74         extern jtag_interface_t amt_jtagaccel_interface;
  75 #endif
  76
  77 #if BUILD_EP93XX == 1
  78         extern jtag_interface_t ep93xx_interface;
  79 #endif
  80
  81 #if BUILD_AT91RM9200 == 1
  82         extern jtag_interface_t at91rm9200_interface;
  83 #endif
  84
  85 #if BUILD_GW16012 == 1
  86         extern jtag_interface_t gw16012_interface;
  87 #endif
  88
  89 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
  90         extern jtag_interface_t presto_interface;
  91 #endif
  92
  93 #if BUILD_USBPROG == 1
  94         extern jtag_interface_t usbprog_interface;
  95 #endif
  96
  97 #if BUILD_JLINK == 1
  98         extern jtag_interface_t jlink_interface;
  99 #endif
 100
 101 #if BUILD_VSLLINK == 1
 102         extern jtag_interface_t vsllink_interface;
 103 #endif
 104
 105 #if BUILD_RLINK == 1
 106         extern jtag_interface_t rlink_interface;
 107 #endif
 108
 109 #if BUILD_ARMJTAGEW == 1
 110         extern jtag_interface_t armjtagew_interface;
 111 #endif
 112 #endif // standard drivers
 113
 114 /**
 115  * The list of built-in JTAG interfaces, containing entries for those
 116  * drivers that were enabled by the @c configure script.
 117  *
 118  * The list should be defined to contain either one minidriver interface
 119  * or some number of standard driver interfaces, never both.
 120  */
 121 jtag_interface_t *jtag_interfaces[] = {
 122 #if BUILD_ECOSBOARD == 1
 123         &zy1000_interface,
 124 #elif defined(BUILD_MINIDRIVER_DUMMY)
 125         &minidummy_interface,
 126 #else // standard drivers
 127 #if BUILD_PARPORT == 1
 128         &parport_interface,
 129 #endif
 130 #if BUILD_DUMMY == 1
 131         &dummy_interface,
 132 #endif
 133 #if BUILD_FT2232_FTD2XX == 1
 134         &ft2232_interface,
 135 #endif
 136 #if BUILD_FT2232_LIBFTDI == 1
 137         &ft2232_interface,
 138 #endif
 139 #if BUILD_AMTJTAGACCEL == 1
 140         &amt_jtagaccel_interface,
 141 #endif
 142 #if BUILD_EP93XX == 1
 143         &ep93xx_interface,
 144 #endif
 145 #if BUILD_AT91RM9200 == 1
 146         &at91rm9200_interface,
 147 #endif
 148 #if BUILD_GW16012 == 1
 149         &gw16012_interface,
 150 #endif
 151 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
 152         &presto_interface,
 153 #endif
 154 #if BUILD_USBPROG == 1
 155         &usbprog_interface,
 156 #endif
 157 #if BUILD_JLINK == 1
 158         &jlink_interface,
 159 #endif
 160 #if BUILD_VSLLINK == 1
 161         &vsllink_interface,
 162 #endif
 163 #if BUILD_RLINK == 1
 164         &rlink_interface,
 165 #endif
 166 #if BUILD_ARMJTAGEW == 1
 167         &armjtagew_interface,
 168 #endif
 169 #endif // standard drivers
 170         NULL,
 171 };
 172
 173 extern jtag_interface_t *jtag_interface;
 174
 175 /* jtag commands */
 176 static int handle_interface_list_command(struct command_context_s *cmd_ctx,
 177                 char *cmd, char **args, int argc);
 178 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 179 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 180 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 181 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 182 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 183 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 184 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 185
 186 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 187
 188 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 189 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 190 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 191 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 192 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args);
 193
 194 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 195 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 196 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 197
 198 extern int jtag_examine_chain(void);
 199 extern int jtag_validate_chain(void);
 200
 201 enum jtag_tap_cfg_param {
 202         JCFG_EVENT
 203 };
 204
 205 static Jim_Nvp nvp_config_opts[] = {
 206         { .name = "-event",      .value = JCFG_EVENT },
 207
 208         { .name = NULL,          .value = -1 }
 209 };
 210
 211 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
 212 {
 213         Jim_Nvp *n;
 214         Jim_Obj *o;
 215         int e;
 216
 217         /* parse config or cget options */
 218         while (goi->argc > 0) {
 219                 Jim_SetEmptyResult (goi->interp);
 220
 221                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
 222                 if (e != JIM_OK) {
 223                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
 224                         return e;
 225                 }
 226
 227                 switch (n->value) {
 228                         case JCFG_EVENT:
 229                                 if (goi->argc == 0) {
 230                                         Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
 231                                         return JIM_ERR;
 232                                 }
 233
 234                                 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
 235                                 if (e != JIM_OK) {
 236                                         Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
 237                                         return e;
 238                                 }
 239
 240                                 if (goi->isconfigure) {
 241                                         if (goi->argc != 1) {
 242                                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
 243                                                 return JIM_ERR;
 244                                         }
 245                                 } else {
 246                                         if (goi->argc != 0) {
 247                                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
 248                                                 return JIM_ERR;
 249                                         }
 250                                 }
 251
 252                                 {
 253                                         jtag_tap_event_action_t *jteap;
 254
 255                                         jteap = tap->event_action;
 256                                         /* replace existing? */
 257                                         while (jteap) {
 258                                                 if (jteap->event == (enum jtag_tap_event)n->value) {
 259                                                         break;
 260                                                 }
 261                                                 jteap = jteap->next;
 262                                         }
 263
 264                                         if (goi->isconfigure) {
 265                                                 if (jteap == NULL) {
 266                                                         /* create new */
 267                                                         jteap = calloc(1, sizeof (*jteap));
 268                                                 }
 269                                                 jteap->event = n->value;
 270                                                 Jim_GetOpt_Obj( goi, &o);
 271                                                 if (jteap->body) {
 272                                                         Jim_DecrRefCount(interp, jteap->body);
 273                                                 }
 274                                                 jteap->body = Jim_DuplicateObj(goi->interp, o);
 275                                                 Jim_IncrRefCount(jteap->body);
 276
 277                                                 /* add to head of event list */
 278                                                 jteap->next = tap->event_action;
 279                                                 tap->event_action = jteap;
 280                                                 Jim_SetEmptyResult(goi->interp);
 281                                         } else {
 282                                                 /* get */
 283                                                 if (jteap == NULL) {
 284                                                         Jim_SetEmptyResult(goi->interp);
 285                                                 } else {
 286                                                         Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
 287                                                 }
 288                                         }
 289                                 }
 290                                 /* loop for more */
 291                                 break;
 292                 }
 293         } /* while (goi->argc) */
 294
 295         return JIM_OK;
 296 }
 297
 298
 299 extern void jtag_tap_init(jtag_tap_t *tap);
 300 extern void jtag_tap_free(jtag_tap_t *tap);
 301
 302 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
 303 {
 304         jtag_tap_t *pTap;
 305         jim_wide w;
 306         int x;
 307         int e;
 308         int reqbits;
 309         Jim_Nvp *n;
 310         char *cp;
 311         const Jim_Nvp opts[] = {
 312 #define NTAP_OPT_IRLEN     0
 313                 { .name = "-irlen"                      ,       .value = NTAP_OPT_IRLEN },
 314 #define NTAP_OPT_IRMASK    1
 315                 { .name = "-irmask"                     ,       .value = NTAP_OPT_IRMASK },
 316 #define NTAP_OPT_IRCAPTURE 2
 317                 { .name = "-ircapture"          ,       .value = NTAP_OPT_IRCAPTURE },
 318 #define NTAP_OPT_ENABLED   3
 319                 { .name = "-enable"                     ,       .value = NTAP_OPT_ENABLED },
 320 #define NTAP_OPT_DISABLED  4
 321                 { .name = "-disable"            ,       .value = NTAP_OPT_DISABLED },
 322 #define NTAP_OPT_EXPECTED_ID 5
 323                 { .name = "-expected-id"        ,       .value = NTAP_OPT_EXPECTED_ID },
 324                 { .name = NULL                          ,       .value = -1 },
 325         };
 326
 327         pTap = malloc( sizeof(jtag_tap_t) );
 328         memset( pTap, 0, sizeof(*pTap) );
 329         if( !pTap ){
 330                 Jim_SetResult_sprintf( goi->interp, "no memory");
 331                 return JIM_ERR;
 332         }
 333         /*
 334          * we expect CHIP + TAP + OPTIONS
 335          * */
 336         if( goi->argc < 3 ){
 337                 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
 338                 return JIM_ERR;
 339         }
 340         Jim_GetOpt_String( goi, &cp, NULL );
 341         pTap->chip = strdup(cp);
 342
 343         Jim_GetOpt_String( goi, &cp, NULL );
 344         pTap->tapname = strdup(cp);
 345
 346         /* name + dot + name + null */
 347         x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
 348         cp = malloc( x );
 349         sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
 350         pTap->dotted_name = cp;
 351
 352         LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
 353                           pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
 354
 355         /* default is enabled */
 356         pTap->enabled = 1;
 357
 358         /* deal with options */
 359 #define NTREQ_IRLEN      1
 360 #define NTREQ_IRCAPTURE  2
 361 #define NTREQ_IRMASK     4
 362
 363         /* clear them as we find them */
 364         reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
 365
 366         while( goi->argc ){
 367                 e = Jim_GetOpt_Nvp( goi, opts, &n );
 368                 if( e != JIM_OK ){
 369                         Jim_GetOpt_NvpUnknown( goi, opts, 0 );
 370                         return e;
 371                 }
 372                 LOG_DEBUG("Processing option: %s", n->name );
 373                 switch( n->value ){
 374                 case NTAP_OPT_ENABLED:
 375                         pTap->enabled = 1;
 376                         break;
 377                 case NTAP_OPT_DISABLED:
 378                         pTap->enabled = 0;
 379                         break;
 380                 case NTAP_OPT_EXPECTED_ID:
 381                 {
 382                         u32 *new_expected_ids;
 383
 384                         e = Jim_GetOpt_Wide( goi, &w );
 385                         if( e != JIM_OK) {
 386                                 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
 387                                 return e;
 388                         }
 389
 390                         new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
 391                         if (new_expected_ids == NULL) {
 392                                 Jim_SetResult_sprintf( goi->interp, "no memory");
 393                                 return JIM_ERR;
 394                         }
 395
 396                         memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
 397
 398                         new_expected_ids[pTap->expected_ids_cnt] = w;
 399
 400                         free(pTap->expected_ids);
 401                         pTap->expected_ids = new_expected_ids;
 402                         pTap->expected_ids_cnt++;
 403                         break;
 404                 }
 405                 case NTAP_OPT_IRLEN:
 406                 case NTAP_OPT_IRMASK:
 407                 case NTAP_OPT_IRCAPTURE:
 408                         e = Jim_GetOpt_Wide( goi, &w );
 409                         if( e != JIM_OK ){
 410                                 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
 411                                 return e;
 412                         }
 413                         if( (w < 0) || (w > 0xffff) ){
 414                                 /* wacky value */
 415                                 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
 416                                                                            n->name, (int)(w), (int)(w));
 417                                 return JIM_ERR;
 418                         }
 419                         switch(n->value){
 420                         case NTAP_OPT_IRLEN:
 421                                 pTap->ir_length = w;
 422                                 reqbits &= (~(NTREQ_IRLEN));
 423                                 break;
 424                         case NTAP_OPT_IRMASK:
 425                                 pTap->ir_capture_mask = w;
 426                                 reqbits &= (~(NTREQ_IRMASK));
 427                                 break;
 428                         case NTAP_OPT_IRCAPTURE:
 429                                 pTap->ir_capture_value = w;
 430                                 reqbits &= (~(NTREQ_IRCAPTURE));
 431                                 break;
 432                         }
 433                 } /* switch(n->value) */
 434         } /* while( goi->argc ) */
 435
 436         /* Did all the required option bits get cleared? */
 437         if (0 == reqbits)
 438         {
 439                 jtag_tap_init(pTap);
 440                 return ERROR_OK;
 441         }
 442
 443         Jim_SetResult_sprintf(goi->interp,
 444                         "newtap: %s missing required parameters",
 445                         pTap->dotted_name);
 446         jtag_tap_free(pTap);
 447         return JIM_ERR;
 448 }
 449
 450 static void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
 451 {
 452         jtag_tap_event_action_t * jteap;
 453         int done;
 454
 455         jteap = tap->event_action;
 456
 457         done = 0;
 458         while (jteap) {
 459                 if (jteap->event == e) {
 460                         done = 1;
 461                         LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
 462                                         tap->dotted_name,
 463                                         e,
 464                                         Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
 465                                         Jim_GetString(jteap->body, NULL) );
 466                         if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
 467                                 Jim_PrintErrorMessage(interp);
 468                         }
 469                 }
 470
 471                 jteap = jteap->next;
 472         }
 473
 474         if (!done) {
 475                 LOG_DEBUG( "event %d %s - no action",
 476                                 e,
 477                                 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
 478         }
 479 }
 480
 481
 482 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
 483 {
 484         Jim_GetOptInfo goi;
 485         int e;
 486         Jim_Nvp *n;
 487         Jim_Obj *o;
 488         struct command_context_s *context;
 489
 490         enum {
 491                 JTAG_CMD_INTERFACE,
 492                 JTAG_CMD_INIT_RESET,
 493                 JTAG_CMD_NEWTAP,
 494                 JTAG_CMD_TAPENABLE,
 495                 JTAG_CMD_TAPDISABLE,
 496                 JTAG_CMD_TAPISENABLED,
 497                 JTAG_CMD_CONFIGURE,
 498                 JTAG_CMD_CGET
 499         };
 500
 501         const Jim_Nvp jtag_cmds[] = {
 502                 { .name = "interface"     , .value = JTAG_CMD_INTERFACE },
 503                 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
 504                 { .name = "newtap"        , .value = JTAG_CMD_NEWTAP },
 505                 { .name = "tapisenabled"     , .value = JTAG_CMD_TAPISENABLED },
 506                 { .name = "tapenable"     , .value = JTAG_CMD_TAPENABLE },
 507                 { .name = "tapdisable"    , .value = JTAG_CMD_TAPDISABLE },
 508                 { .name = "configure"     , .value = JTAG_CMD_CONFIGURE },
 509                 { .name = "cget"          , .value = JTAG_CMD_CGET },
 510
 511                 { .name = NULL, .value = -1 },
 512         };
 513
 514         context = Jim_GetAssocData(interp, "context");
 515         /* go past the command */
 516         Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
 517
 518         e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
 519         if( e != JIM_OK ){
 520                 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
 521                 return e;
 522         }
 523                 Jim_SetEmptyResult( goi.interp );
 524         switch( n->value ){
 525         case JTAG_CMD_INTERFACE:
 526                 /* return the name of the interface */
 527                 /* TCL code might need to know the exact type... */
 528                 /* FUTURE: we allow this as a means to "set" the interface. */
 529                 if( goi.argc != 0 ){
 530                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 531                         return JIM_ERR;
 532                 }
 533                 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
 534                 return JIM_OK;
 535         case JTAG_CMD_INIT_RESET:
 536                 if( goi.argc != 0 ){
 537                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 538                         return JIM_ERR;
 539                 }
 540                 e = jtag_init_reset(context);
 541                 if( e != ERROR_OK ){
 542                         Jim_SetResult_sprintf( goi.interp, "error: %d", e);
 543                         return JIM_ERR;
 544                 }
 545                 return JIM_OK;
 546         case JTAG_CMD_NEWTAP:
 547                 return jim_newtap_cmd( &goi );
 548                 break;
 549         case JTAG_CMD_TAPISENABLED:
 550         case JTAG_CMD_TAPENABLE:
 551         case JTAG_CMD_TAPDISABLE:
 552                 if( goi.argc != 1 ){
 553                         Jim_SetResultString( goi.interp, "Too many parameters",-1 );
 554                         return JIM_ERR;
 555                 }
 556
 557                 {
 558                         jtag_tap_t *t;
 559                         t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
 560                         if( t == NULL ){
 561                                 return JIM_ERR;
 562                         }
 563                         switch( n->value ){
 564                         case JTAG_CMD_TAPISENABLED:
 565                                 e = t->enabled;
 566                                 break;
 567                         case JTAG_CMD_TAPENABLE:
 568                                 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
 569                                 e = 1;
 570                                 t->enabled = e;
 571                                 break;
 572                         case JTAG_CMD_TAPDISABLE:
 573                                 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
 574                                 e = 0;
 575                                 t->enabled = e;
 576                                 break;
 577                         }
 578                         Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
 579                         return JIM_OK;
 580                 }
 581                 break;
 582
 583         case JTAG_CMD_CGET:
 584                 if( goi.argc < 2 ){
 585                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
 586                         return JIM_ERR;
 587                 }
 588
 589                 {
 590                         jtag_tap_t *t;
 591
 592                         Jim_GetOpt_Obj(&goi, &o);
 593                         t = jtag_tap_by_jim_obj( goi.interp, o );
 594                         if( t == NULL ){
 595                                 return JIM_ERR;
 596                         }
 597
 598                         goi.isconfigure = 0;
 599                         return jtag_tap_configure_cmd( &goi, t);
 600                 }
 601                 break;
 602
 603         case JTAG_CMD_CONFIGURE:
 604                 if( goi.argc < 3 ){
 605                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
 606                         return JIM_ERR;
 607                 }
 608
 609                 {
 610                         jtag_tap_t *t;
 611
 612                         Jim_GetOpt_Obj(&goi, &o);
 613                         t = jtag_tap_by_jim_obj( goi.interp, o );
 614                         if( t == NULL ){
 615                                 return JIM_ERR;
 616                         }
 617
 618                         goi.isconfigure = 1;
 619                         return jtag_tap_configure_cmd( &goi, t);
 620                 }
 621         }
 622
 623         return JIM_ERR;
 624 }
 625
 626 int jtag_register_commands(struct command_context_s *cmd_ctx)
 627 {
 628         register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
 629
 630         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
 631                 COMMAND_CONFIG, "try to configure interface");
 632         register_command(cmd_ctx, NULL,
 633                 "interface_list", &handle_interface_list_command,
 634                 COMMAND_ANY, "list all built-in interfaces");
 635         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
 636                 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
 637         register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
 638                 COMMAND_ANY, "set maximum jtag speed (if supported); "
 639                 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
 640         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
 641                 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
 642         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
 643                 COMMAND_ANY,
 644                 "[none/trst_only/srst_only/trst_and_srst] [srst_pulls_trst/trst_pulls_srst] [combined/separate] [trst_push_pull/trst_open_drain] [srst_push_pull/srst_open_drain]");
 645         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
 646                 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
 647         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
 648                 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
 649
 650         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
 651                 COMMAND_EXEC, "print current scan chain configuration");
 652
 653         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
 654                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
 655         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
 656                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
 657         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
 658                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
 659         register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
 660         register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
 661
 662         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
 663                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
 664         register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
 665                 COMMAND_ANY, "verify value capture <enable|disable>");
 666         register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
 667                 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
 668         return ERROR_OK;
 669 }
 670
 671 static int default_khz(int khz, int *jtag_speed)
 672 {
 673         LOG_ERROR("Translation from khz to jtag_speed not implemented");
 674         return ERROR_FAIL;
 675 }
 676
 677 static int default_speed_div(int speed, int *khz)
 678 {
 679         LOG_ERROR("Translation from jtag_speed to khz not implemented");
 680         return ERROR_FAIL;
 681 }
 682
 683 static int default_power_dropout(int *dropout)
 684 {
 685         *dropout=0; /* by default we can't detect power dropout */
 686         return ERROR_OK;
 687 }
 688
 689 static int default_srst_asserted(int *srst_asserted)
 690 {
 691         *srst_asserted=0; /* by default we can't detect srst asserted */
 692         return ERROR_OK;
 693 }
 694
 695 static int handle_interface_command(struct command_context_s *cmd_ctx,
 696                 char *cmd, char **args, int argc)
 697 {
 698         /* check whether the interface is already configured */
 699         if (jtag_interface)
 700         {
 701                 LOG_WARNING("Interface already configured, ignoring");
 702                 return ERROR_OK;
 703         }
 704
 705         /* interface name is a mandatory argument */
 706         if (argc != 1 || args[0][0] == '\0')
 707                 return ERROR_COMMAND_SYNTAX_ERROR;
 708
 709         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 710         {
 711                 if (strcmp(args[0], jtag_interfaces[i]->name) != 0)
 712                         continue;
 713
 714                 int retval = jtag_interfaces[i]->register_commands(cmd_ctx);
 715                 if (ERROR_OK != retval)
 716                                 return retval;
 717
 718                 jtag_interface = jtag_interfaces[i];
 719
 720                 if (jtag_interface->khz == NULL)
 721                         jtag_interface->khz = default_khz;
 722                 if (jtag_interface->speed_div == NULL)
 723                         jtag_interface->speed_div = default_speed_div;
 724                 if (jtag_interface->power_dropout == NULL)
 725                         jtag_interface->power_dropout = default_power_dropout;
 726                 if (jtag_interface->srst_asserted == NULL)
 727                         jtag_interface->srst_asserted = default_srst_asserted;
 728
 729                 return ERROR_OK;
 730         }
 731
 732         /* no valid interface was found (i.e. the configuration option,
 733          * didn't match one of the compiled-in interfaces
 734          */
 735         LOG_ERROR("The specified JTAG interface was not found (%s)", args[0]);
 736         handle_interface_list_command(cmd_ctx, cmd, args, argc);
 737         return ERROR_JTAG_INVALID_INTERFACE;
 738 }
 739
 740 static int handle_interface_list_command(struct command_context_s *cmd_ctx,
 741                 char *cmd, char **args, int argc)
 742 {
 743         if (strcmp(cmd, "interface_list") == 0 && argc > 0)
 744                 return ERROR_COMMAND_SYNTAX_ERROR;
 745
 746         command_print(cmd_ctx, "The following JTAG interfaces are available:");
 747         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 748         {
 749                 const char *name = jtag_interfaces[i]->name;
 750                 command_print(cmd_ctx, "%u: %s", i + 1, name);
 751         }
 752
 753         return ERROR_OK;
 754 }
 755
 756 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 757 {
 758         int e;
 759         char buf[1024];
 760         Jim_Obj *newargs[ 10 ];
 761         /*
 762          * CONVERT SYNTAX
 763          * argv[-1] = command
 764          * argv[ 0] = ir length
 765          * argv[ 1] = ir capture
 766          * argv[ 2] = ir mask
 767          * argv[ 3] = not actually used by anything but in the docs
 768          */
 769
 770         if( argc < 4 ){
 771                 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
 772                 return ERROR_OK;
 773         }
 774         command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
 775         command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
 776                                    args[0],
 777                                    args[1],
 778                                    args[2] );
 779         command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
 780         command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
 781         command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
 782         command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
 783
 784         newargs[0] = Jim_NewStringObj( interp, "jtag", -1   );
 785         newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
 786         sprintf( buf, "chip%d", jtag_tap_count() );
 787         newargs[2] = Jim_NewStringObj( interp, buf, -1 );
 788         sprintf( buf, "tap%d", jtag_tap_count() );
 789         newargs[3] = Jim_NewStringObj( interp, buf, -1  );
 790         newargs[4] = Jim_NewStringObj( interp, "-irlen", -1  );
 791         newargs[5] = Jim_NewStringObj( interp, args[0], -1  );
 792         newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1  );
 793         newargs[7] = Jim_NewStringObj( interp, args[1], -1  );
 794         newargs[8] = Jim_NewStringObj( interp, "-irmask", -1  );
 795         newargs[9] = Jim_NewStringObj( interp, args[2], -1  );
 796
 797         command_print( cmd_ctx, "NEW COMMAND:");
 798         sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
 799                          Jim_GetString( newargs[0], NULL ),
 800                          Jim_GetString( newargs[1], NULL ),
 801                          Jim_GetString( newargs[2], NULL ),
 802                          Jim_GetString( newargs[3], NULL ),
 803                          Jim_GetString( newargs[4], NULL ),
 804                          Jim_GetString( newargs[5], NULL ),
 805                          Jim_GetString( newargs[6], NULL ),
 806                          Jim_GetString( newargs[7], NULL ),
 807                          Jim_GetString( newargs[8], NULL ),
 808                          Jim_GetString( newargs[9], NULL ) );
 809
 810         e = jim_jtag_command( interp, 10, newargs );
 811         if( e != JIM_OK ){
 812                 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
 813         }
 814         return e;
 815 }
 816
 817 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 818 {
 819         jtag_tap_t *tap;
 820
 821         tap = jtag_all_taps();
 822         command_print(cmd_ctx, "     TapName            | Enabled |   IdCode      Expected    IrLen IrCap  IrMask Instr     ");
 823         command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
 824
 825         while( tap ){
 826                 u32 expected, expected_mask, cur_instr, ii;
 827                 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
 828                 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
 829                 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
 830
 831                 command_print(cmd_ctx,
 832                                           "%2d | %-18s |    %c    | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
 833                                           tap->abs_chain_position,
 834                                           tap->dotted_name,
 835                                           tap->enabled ? 'Y' : 'n',
 836                                           tap->idcode,
 837                                           (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
 838                                           tap->ir_length,
 839                                           expected,
 840                                           expected_mask,
 841                                           cur_instr);
 842
 843                 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
 844                         command_print(cmd_ctx, "   |                    |         |            | 0x%08x |      |      |      |         ",
 845                                                   tap->expected_ids[ii]);
 846                 }
 847
 848                 tap = tap->next_tap;
 849         }
 850
 851         return ERROR_OK;
 852 }
 853
 854 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 855 {
 856         int new_cfg = 0;
 857         int mask = 0;
 858
 859         if (argc < 1)
 860                 return ERROR_COMMAND_SYNTAX_ERROR;
 861
 862         /* Original versions cared about the order of these tokens:
 863          *   reset_config signals [combination [trst_type [srst_type]]]
 864          * They also clobbered the previous configuration even on error.
 865          *
 866          * Here we don't care about the order, and only change values
 867          * which have been explicitly specified.
 868          */
 869         for (; argc; argc--, args++) {
 870                 int tmp = 0;
 871                 int m;
 872
 873                 /* signals */
 874                 m = RESET_HAS_TRST | RESET_HAS_SRST;
 875                 if (strcmp(*args, "none") == 0)
 876                         tmp = RESET_NONE;
 877                 else if (strcmp(*args, "trst_only") == 0)
 878                         tmp = RESET_HAS_TRST;
 879                 else if (strcmp(*args, "srst_only") == 0)
 880                         tmp = RESET_HAS_SRST;
 881                 else if (strcmp(*args, "trst_and_srst") == 0)
 882                         tmp = RESET_HAS_TRST | RESET_HAS_SRST;
 883                 else
 884                         m = 0;
 885                 if (mask & m) {
 886                         LOG_ERROR("extra reset_config %s spec (%s)",
 887                                         "signal", *args);
 888                         return ERROR_INVALID_ARGUMENTS;
 889                 }
 890                 if (m)
 891                         goto next;
 892
 893                 /* combination (options for broken wiring) */
 894                 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 895                 if (strcmp(*args, "separate") == 0)
 896                         /* separate reset lines - default */;
 897                 else if (strcmp(*args, "srst_pulls_trst") == 0)
 898                         tmp |= RESET_SRST_PULLS_TRST;
 899                 else if (strcmp(*args, "trst_pulls_srst") == 0)
 900                         tmp |= RESET_TRST_PULLS_SRST;
 901                 else if (strcmp(*args, "combined") == 0)
 902                         tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 903                 else
 904                         m = 0;
 905                 if (mask & m) {
 906                         LOG_ERROR("extra reset_config %s spec (%s)",
 907                                         "combination", *args);
 908                         return ERROR_INVALID_ARGUMENTS;
 909                 }
 910                 if (m)
 911                         goto next;
 912
 913                 /* trst_type (NOP without HAS_TRST) */
 914                 m = RESET_TRST_OPEN_DRAIN;
 915                 if (strcmp(*args, "trst_open_drain") == 0)
 916                         tmp |= RESET_TRST_OPEN_DRAIN;
 917                 else if (strcmp(*args, "trst_push_pull") == 0)
 918                         /* push/pull from adapter - default */;
 919                 else
 920                         m = 0;
 921                 if (mask & m) {
 922                         LOG_ERROR("extra reset_config %s spec (%s)",
 923                                         "trst_type", *args);
 924                         return ERROR_INVALID_ARGUMENTS;
 925                 }
 926                 if (m)
 927                         goto next;
 928
 929                 /* srst_type (NOP without HAS_SRST) */
 930                 m |= RESET_SRST_PUSH_PULL;
 931                 if (strcmp(*args, "srst_push_pull") == 0)
 932                         tmp |= RESET_SRST_PUSH_PULL;
 933                 else if (strcmp(*args, "srst_open_drain") == 0)
 934                         /* open drain from adapter - default */;
 935                 else
 936                         m = 0;
 937                 if (mask & m) {
 938                         LOG_ERROR("extra reset_config %s spec (%s)",
 939                                         "srst_type", *args);
 940                         return ERROR_INVALID_ARGUMENTS;
 941                 }
 942                 if (m)
 943                         goto next;
 944
 945                 /* caller provided nonsense; fail */
 946                 LOG_ERROR("unknown reset_config flag (%s)", *args);
 947                 return ERROR_INVALID_ARGUMENTS;
 948
 949 next:
 950                 /* Remember the bits which were specified (mask)
 951                  * and their new values (new_cfg).
 952                  */
 953                 mask |= m;
 954                 new_cfg |= tmp;
 955         }
 956
 957         /* clear previous values of those bits, save new values */
 958         enum reset_types old_cfg = jtag_get_reset_config();
 959         old_cfg &= ~mask;
 960         new_cfg |= old_cfg;
 961         jtag_set_reset_config(new_cfg);
 962
 963         return ERROR_OK;
 964 }
 965
 966 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx,
 967                 char *cmd, char **args, int argc)
 968 {
 969         if (argc > 1)
 970                 return ERROR_COMMAND_SYNTAX_ERROR;
 971         if (argc == 1)
 972                 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
 973         command_print(cmd_ctx, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
 974         return ERROR_OK;
 975 }
 976
 977 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx,
 978                 char *cmd, char **args, int argc)
 979 {
 980         if (argc > 1)
 981                 return ERROR_COMMAND_SYNTAX_ERROR;
 982         if (argc == 1)
 983                 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
 984         command_print(cmd_ctx, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
 985         return ERROR_OK;
 986 }
 987
 988 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 989 {
 990         int retval = ERROR_OK;
 991
 992         if (argc > 1)
 993                 return ERROR_COMMAND_SYNTAX_ERROR;
 994         if (argc == 1)
 995         {
 996                 LOG_DEBUG("handle jtag speed");
 997
 998                 int cur_speed = 0;
 999                 cur_speed = strtoul(args[0], NULL, 0);
1000                 retval = jtag_set_speed(cur_speed);
1001
1002         }
1003         command_print(cmd_ctx, "jtag_speed: %d", jtag_get_speed());
1004
1005         return retval;
1006 }
1007
1008 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1009 {
1010         if (argc > 1)
1011                 return ERROR_COMMAND_SYNTAX_ERROR;
1012
1013         int retval = ERROR_OK;
1014         if (argc == 1)
1015         {
1016                 retval = jtag_config_khz(strtoul(args[0], NULL, 0));
1017                 if (ERROR_OK != retval)
1018                         return retval;
1019         }
1020
1021         int cur_speed;
1022         retval = jtag_get_speed_readable(&cur_speed);
1023         if (ERROR_OK != retval)
1024                 return retval;
1025
1026         if (cur_speed)
1027                 command_print(cmd_ctx, "%d kHz", cur_speed);
1028         else
1029                 command_print(cmd_ctx, "RCLK - adaptive");
1030
1031         return retval;
1032 }
1033
1034 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx,
1035                 char *cmd, char **args, int argc)
1036 {
1037         if (argc != 2)
1038                 return ERROR_COMMAND_SYNTAX_ERROR;
1039
1040         int trst = -1;
1041         if (args[0][0] == '1')
1042                 trst = 1;
1043         else if (args[0][0] == '0')
1044                 trst = 0;
1045         else
1046                 return ERROR_COMMAND_SYNTAX_ERROR;
1047
1048         int srst = -1;
1049         if (args[1][0] == '1')
1050                 srst = 1;
1051         else if (args[1][0] == '0')
1052                 srst = 0;
1053         else
1054                 return ERROR_COMMAND_SYNTAX_ERROR;
1055
1056         if (jtag_interface_init(cmd_ctx) != ERROR_OK)
1057                 return ERROR_JTAG_INIT_FAILED;
1058
1059         jtag_add_reset(trst, srst);
1060         jtag_execute_queue();
1061
1062         return ERROR_OK;
1063 }
1064
1065 static int handle_runtest_command(struct command_context_s *cmd_ctx,
1066                 char *cmd, char **args, int argc)
1067 {
1068         if (argc != 1)
1069                 return ERROR_COMMAND_SYNTAX_ERROR;
1070
1071         jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
1072         jtag_execute_queue();
1073
1074         return ERROR_OK;
1075 }
1076
1077 /*
1078  * For "irscan" or "drscan" commands, the "end" (really, "next") state
1079  * should be stable ... and *NOT* a shift state, otherwise free-running
1080  * jtag clocks could change the values latched by the update state.
1081  */
1082 static bool scan_is_safe(tap_state_t state)
1083 {
1084         switch (state)
1085         {
1086         case TAP_RESET:
1087         case TAP_IDLE:
1088         case TAP_DRPAUSE:
1089         case TAP_IRPAUSE:
1090                 return true;
1091         default:
1092                 return false;
1093         }
1094 }
1095
1096
1097 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1098 {
1099         int i;
1100         scan_field_t *fields;
1101         jtag_tap_t *tap;
1102         tap_state_t endstate;
1103
1104         if ((argc < 2) || (argc % 2))
1105         {
1106                 return ERROR_COMMAND_SYNTAX_ERROR;
1107         }
1108
1109         /* optional "-endstate" "statename" at the end of the arguments,
1110          * so that e.g. IRPAUSE can let us load the data register before
1111          * entering RUN/IDLE to execute the instruction we load here.
1112          */
1113         endstate = TAP_IDLE;
1114
1115         if( argc >= 4 ){
1116                 /* have at least one pair of numbers. */
1117                 /* is last pair the magic text? */
1118                 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
1119                         const char *cpA;
1120                         const char *cpS;
1121                         cpA = args[ argc-1 ];
1122                         for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
1123                                 cpS = tap_state_name( endstate );
1124                                 if( 0 == strcmp( cpA, cpS ) ){
1125                                         break;
1126                                 }
1127                         }
1128                         if( endstate >= TAP_NUM_STATES ){
1129                                 return ERROR_COMMAND_SYNTAX_ERROR;
1130                         } else {
1131                                 if (!scan_is_safe(endstate))
1132                                         LOG_WARNING("irscan with unsafe "
1133                                                         "endstate \"%s\"", cpA);
1134                                 /* found - remove the last 2 args */
1135                                 argc -= 2;
1136                         }
1137                 }
1138         }
1139
1140         int num_fields = argc / 2;
1141
1142         fields = malloc(sizeof(scan_field_t) * num_fields);
1143
1144         for (i = 0; i < num_fields; i++)
1145         {
1146                 tap = jtag_tap_by_string( args[i*2] );
1147                 if (tap==NULL)
1148                 {
1149                         command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
1150                         return ERROR_FAIL;
1151                 }
1152                 int field_size = tap->ir_length;
1153                 fields[i].tap = tap;
1154                 fields[i].num_bits = field_size;
1155                 fields[i].out_value = malloc(CEIL(field_size, 8));
1156                 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1157                 fields[i].in_value = NULL;
1158         }
1159
1160         /* did we have an endstate? */
1161         jtag_add_ir_scan(num_fields, fields, endstate);
1162
1163         int retval=jtag_execute_queue();
1164
1165         for (i = 0; i < num_fields; i++)
1166                 free(fields[i].out_value);
1167
1168         free (fields);
1169
1170         return retval;
1171 }
1172
1173 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1174 {
1175         int retval;
1176         scan_field_t *fields;
1177         int num_fields;
1178         int field_count = 0;
1179         int i, e;
1180         jtag_tap_t *tap;
1181         tap_state_t endstate;
1182
1183         /* args[1] = device
1184          * args[2] = num_bits
1185          * args[3] = hex string
1186          * ... repeat num bits and hex string ...
1187          *
1188          * .. optionally:
1189         *     args[N-2] = "-endstate"
1190          *     args[N-1] = statename
1191          */
1192         if ((argc < 4) || ((argc % 2)!=0))
1193         {
1194                 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
1195                 return JIM_ERR;
1196         }
1197
1198         endstate = TAP_IDLE;
1199
1200         /* validate arguments as numbers */
1201         e = JIM_OK;
1202         for (i = 2; i < argc; i+=2)
1203         {
1204                 long bits;
1205                 const char *cp;
1206
1207                 e = Jim_GetLong(interp, args[i], &bits);
1208                 /* If valid - try next arg */
1209                 if( e == JIM_OK ){
1210                         continue;
1211                 }
1212
1213                 /* Not valid.. are we at the end? */
1214                 if ( ((i+2) != argc) ){
1215                         /* nope, then error */
1216                         return e;
1217                 }
1218
1219                 /* it could be: "-endstate FOO"
1220                  * e.g. DRPAUSE so we can issue more instructions
1221                  * before entering RUN/IDLE and executing them.
1222                  */
1223
1224                 /* get arg as a string. */
1225                 cp = Jim_GetString( args[i], NULL );
1226                 /* is it the magic? */
1227                 if( 0 == strcmp( "-endstate", cp ) ){
1228                         /* is the statename valid? */
1229                         cp = Jim_GetString( args[i+1], NULL );
1230
1231                         /* see if it is a valid state name */
1232                         endstate = tap_state_by_name(cp);
1233                         if( endstate < 0 ){
1234                                 /* update the error message */
1235                                 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
1236                         } else {
1237                                 if (!scan_is_safe(endstate))
1238                                         LOG_WARNING("drscan with unsafe "
1239                                                         "endstate \"%s\"", cp);
1240
1241                                 /* valid - so clear the error */
1242                                 e = JIM_OK;
1243                                 /* and remove the last 2 args */
1244                                 argc -= 2;
1245                         }
1246                 }
1247
1248                 /* Still an error? */
1249                 if( e != JIM_OK ){
1250                         return e; /* too bad */
1251                 }
1252         } /* validate args */
1253
1254         tap = jtag_tap_by_jim_obj( interp, args[1] );
1255         if( tap == NULL ){
1256                 return JIM_ERR;
1257         }
1258
1259         num_fields=(argc-2)/2;
1260         fields = malloc(sizeof(scan_field_t) * num_fields);
1261         for (i = 2; i < argc; i+=2)
1262         {
1263                 long bits;
1264                 int len;
1265                 const char *str;
1266
1267                 Jim_GetLong(interp, args[i], &bits);
1268                 str = Jim_GetString(args[i+1], &len);
1269
1270                 fields[field_count].tap = tap;
1271                 fields[field_count].num_bits = bits;
1272                 fields[field_count].out_value = malloc(CEIL(bits, 8));
1273                 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
1274                 fields[field_count].in_value = fields[field_count].out_value;
1275                 field_count++;
1276         }
1277
1278         jtag_add_dr_scan(num_fields, fields, endstate);
1279
1280         retval = jtag_execute_queue();
1281         if (retval != ERROR_OK)
1282         {
1283                 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
1284                 return JIM_ERR;
1285         }
1286
1287         field_count=0;
1288         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
1289         for (i = 2; i < argc; i+=2)
1290         {
1291                 long bits;
1292                 char *str;
1293
1294                 Jim_GetLong(interp, args[i], &bits);
1295                 str = buf_to_str(fields[field_count].in_value, bits, 16);
1296                 free(fields[field_count].out_value);
1297
1298                 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
1299                 free(str);
1300                 field_count++;
1301         }
1302
1303         Jim_SetResult(interp, list);
1304
1305         free(fields);
1306
1307         return JIM_OK;
1308 }
1309
1310
1311 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1312 {
1313         Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
1314
1315         return JIM_OK;
1316 }
1317
1318
1319 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1320 {
1321         if (argc > 1)
1322                 return ERROR_COMMAND_SYNTAX_ERROR;
1323
1324         if (argc == 1)
1325         {
1326                 if (strcmp(args[0], "enable") == 0)
1327                         jtag_set_verify_capture_ir(true);
1328                 else if (strcmp(args[0], "disable") == 0)
1329                         jtag_set_verify_capture_ir(false);
1330                 else
1331                         return ERROR_COMMAND_SYNTAX_ERROR;
1332         }
1333
1334         const char *status = jtag_will_verify_capture_ir() ? "enabled": "disabled";
1335         command_print(cmd_ctx, "verify Capture-IR is %s", status);
1336
1337         return ERROR_OK;
1338 }
1339
1340 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1341 {
1342         if (argc > 1)
1343                 return ERROR_COMMAND_SYNTAX_ERROR;
1344
1345         if (argc == 1)
1346         {
1347                 if (strcmp(args[0], "enable") == 0)
1348                         jtag_set_verify(true);
1349                 else if (strcmp(args[0], "disable") == 0)
1350                         jtag_set_verify(false);
1351                 else
1352                         return ERROR_COMMAND_SYNTAX_ERROR;
1353         }
1354
1355         const char *status = jtag_will_verify() ? "enabled": "disabled";
1356         command_print(cmd_ctx, "verify jtag capture is %s", status);
1357
1358         return ERROR_OK;
1359 }
1360
1361 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1362 {
1363         if (argc > 1)
1364                 return ERROR_COMMAND_SYNTAX_ERROR;
1365
1366         if (argc == 1)
1367         {
1368                 bool use_new_table;
1369                 if (strcmp(args[0], "short") == 0)
1370                         use_new_table = true;
1371                 else if (strcmp(args[0], "long") == 0)
1372                         use_new_table = false;
1373                 else
1374                         return ERROR_COMMAND_SYNTAX_ERROR;
1375
1376                 tap_use_new_tms_table(use_new_table);
1377         }
1378
1379         command_print(cmd_ctx, "tms sequence is  %s",
1380                         tap_uses_new_tms_table() ? "short": "long");
1381
1382         return ERROR_OK;
1383 }
1384