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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_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 193 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args);
 194
 195 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 196 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 197 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 198
 199 extern int jtag_examine_chain(void);
 200 extern int jtag_validate_chain(void);
 201
 202 enum jtag_tap_cfg_param {
 203         JCFG_EVENT
 204 };
 205
 206 static Jim_Nvp nvp_config_opts[] = {
 207         { .name = "-event",      .value = JCFG_EVENT },
 208
 209         { .name = NULL,          .value = -1 }
 210 };
 211
 212 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
 213 {
 214         Jim_Nvp *n;
 215         Jim_Obj *o;
 216         int e;
 217
 218         /* parse config or cget options */
 219         while (goi->argc > 0) {
 220                 Jim_SetEmptyResult (goi->interp);
 221
 222                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
 223                 if (e != JIM_OK) {
 224                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
 225                         return e;
 226                 }
 227
 228                 switch (n->value) {
 229                         case JCFG_EVENT:
 230                                 if (goi->argc == 0) {
 231                                         Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
 232                                         return JIM_ERR;
 233                                 }
 234
 235                                 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
 236                                 if (e != JIM_OK) {
 237                                         Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
 238                                         return e;
 239                                 }
 240
 241                                 if (goi->isconfigure) {
 242                                         if (goi->argc != 1) {
 243                                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
 244                                                 return JIM_ERR;
 245                                         }
 246                                 } else {
 247                                         if (goi->argc != 0) {
 248                                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
 249                                                 return JIM_ERR;
 250                                         }
 251                                 }
 252
 253                                 {
 254                                         jtag_tap_event_action_t *jteap;
 255
 256                                         jteap = tap->event_action;
 257                                         /* replace existing? */
 258                                         while (jteap) {
 259                                                 if (jteap->event == (enum jtag_tap_event)n->value) {
 260                                                         break;
 261                                                 }
 262                                                 jteap = jteap->next;
 263                                         }
 264
 265                                         if (goi->isconfigure) {
 266                                                 if (jteap == NULL) {
 267                                                         /* create new */
 268                                                         jteap = calloc(1, sizeof (*jteap));
 269                                                 }
 270                                                 jteap->event = n->value;
 271                                                 Jim_GetOpt_Obj( goi, &o);
 272                                                 if (jteap->body) {
 273                                                         Jim_DecrRefCount(interp, jteap->body);
 274                                                 }
 275                                                 jteap->body = Jim_DuplicateObj(goi->interp, o);
 276                                                 Jim_IncrRefCount(jteap->body);
 277
 278                                                 /* add to head of event list */
 279                                                 jteap->next = tap->event_action;
 280                                                 tap->event_action = jteap;
 281                                                 Jim_SetEmptyResult(goi->interp);
 282                                         } else {
 283                                                 /* get */
 284                                                 if (jteap == NULL) {
 285                                                         Jim_SetEmptyResult(goi->interp);
 286                                                 } else {
 287                                                         Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
 288                                                 }
 289                                         }
 290                                 }
 291                                 /* loop for more */
 292                                 break;
 293                 }
 294         } /* while (goi->argc) */
 295
 296         return JIM_OK;
 297 }
 298
 299 static int is_bad_irval(int ir_length, jim_wide w)
 300 {
 301         jim_wide v = 1;
 302
 303         v <<= ir_length;
 304         v -= 1;
 305         v = ~v;
 306         return (w & v) != 0;
 307 }
 308
 309 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
 310 {
 311         jtag_tap_t *pTap;
 312         jim_wide w;
 313         int x;
 314         int e;
 315         int reqbits;
 316         Jim_Nvp *n;
 317         char *cp;
 318         const Jim_Nvp opts[] = {
 319 #define NTAP_OPT_IRLEN     0
 320                 { .name = "-irlen"                      ,       .value = NTAP_OPT_IRLEN },
 321 #define NTAP_OPT_IRMASK    1
 322                 { .name = "-irmask"                     ,       .value = NTAP_OPT_IRMASK },
 323 #define NTAP_OPT_IRCAPTURE 2
 324                 { .name = "-ircapture"          ,       .value = NTAP_OPT_IRCAPTURE },
 325 #define NTAP_OPT_ENABLED   3
 326                 { .name = "-enable"                     ,       .value = NTAP_OPT_ENABLED },
 327 #define NTAP_OPT_DISABLED  4
 328                 { .name = "-disable"            ,       .value = NTAP_OPT_DISABLED },
 329 #define NTAP_OPT_EXPECTED_ID 5
 330                 { .name = "-expected-id"        ,       .value = NTAP_OPT_EXPECTED_ID },
 331                 { .name = NULL                          ,       .value = -1 },
 332         };
 333
 334         pTap = calloc(1, sizeof(jtag_tap_t));
 335         if (!pTap) {
 336                 Jim_SetResult_sprintf(goi->interp, "no memory");
 337                 return JIM_ERR;
 338         }
 339
 340         /*
 341          * we expect CHIP + TAP + OPTIONS
 342          * */
 343         if( goi->argc < 3 ){
 344                 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
 345                 return JIM_ERR;
 346         }
 347         Jim_GetOpt_String( goi, &cp, NULL );
 348         pTap->chip = strdup(cp);
 349
 350         Jim_GetOpt_String( goi, &cp, NULL );
 351         pTap->tapname = strdup(cp);
 352
 353         /* name + dot + name + null */
 354         x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
 355         cp = malloc( x );
 356         sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
 357         pTap->dotted_name = cp;
 358
 359         LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
 360                           pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
 361
 362         /* deal with options */
 363 #define NTREQ_IRLEN      1
 364 #define NTREQ_IRCAPTURE  2
 365 #define NTREQ_IRMASK     4
 366
 367         /* clear them as we find them */
 368         reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
 369
 370         while( goi->argc ){
 371                 e = Jim_GetOpt_Nvp( goi, opts, &n );
 372                 if( e != JIM_OK ){
 373                         Jim_GetOpt_NvpUnknown( goi, opts, 0 );
 374                         return e;
 375                 }
 376                 LOG_DEBUG("Processing option: %s", n->name );
 377                 switch( n->value ){
 378                 case NTAP_OPT_ENABLED:
 379                         pTap->disabled_after_reset = false;
 380                         break;
 381                 case NTAP_OPT_DISABLED:
 382                         pTap->disabled_after_reset = true;
 383                         break;
 384                 case NTAP_OPT_EXPECTED_ID:
 385                 {
 386                         u32 *new_expected_ids;
 387
 388                         e = Jim_GetOpt_Wide( goi, &w );
 389                         if( e != JIM_OK) {
 390                                 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
 391                                 return e;
 392                         }
 393
 394                         new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
 395                         if (new_expected_ids == NULL) {
 396                                 Jim_SetResult_sprintf( goi->interp, "no memory");
 397                                 return JIM_ERR;
 398                         }
 399
 400                         memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
 401
 402                         new_expected_ids[pTap->expected_ids_cnt] = w;
 403
 404                         free(pTap->expected_ids);
 405                         pTap->expected_ids = new_expected_ids;
 406                         pTap->expected_ids_cnt++;
 407                         break;
 408                 }
 409                 case NTAP_OPT_IRLEN:
 410                 case NTAP_OPT_IRMASK:
 411                 case NTAP_OPT_IRCAPTURE:
 412                         e = Jim_GetOpt_Wide( goi, &w );
 413                         if( e != JIM_OK ){
 414                                 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
 415                                 return e;
 416                         }
 417                         switch(n->value){
 418                         case NTAP_OPT_IRLEN:
 419                                 if (w < (jim_wide) sizeof(pTap->ir_capture_value))
 420                                         LOG_WARNING("huge IR length %d", (int) w);
 421                                 pTap->ir_length = w;
 422                                 reqbits &= (~(NTREQ_IRLEN));
 423                                 break;
 424                         case NTAP_OPT_IRMASK:
 425                                 if (is_bad_irval(pTap->ir_length, w)) {
 426                                         LOG_ERROR("IR mask %x too big",
 427                                                         (int) w);
 428                                         return ERROR_FAIL;
 429                                 }
 430                                 pTap->ir_capture_mask = w;
 431                                 reqbits &= (~(NTREQ_IRMASK));
 432                                 break;
 433                         case NTAP_OPT_IRCAPTURE:
 434                                 if (is_bad_irval(pTap->ir_length, w)) {
 435                                         LOG_ERROR("IR capture %x too big",
 436                                                         (int) w);
 437                                         return ERROR_FAIL;
 438                                 }
 439                                 pTap->ir_capture_value = w;
 440                                 reqbits &= (~(NTREQ_IRCAPTURE));
 441                                 break;
 442                         }
 443                 } /* switch(n->value) */
 444         } /* while( goi->argc ) */
 445
 446         /* default is enabled-after-reset */
 447         pTap->enabled = !pTap->disabled_after_reset;
 448
 449         /* Did all the required option bits get cleared? */
 450         if (0 == reqbits)
 451         {
 452                 jtag_tap_init(pTap);
 453                 return ERROR_OK;
 454         }
 455
 456         Jim_SetResult_sprintf(goi->interp,
 457                         "newtap: %s missing required parameters",
 458                         pTap->dotted_name);
 459         jtag_tap_free(pTap);
 460         return JIM_ERR;
 461 }
 462
 463 static void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
 464 {
 465         jtag_tap_event_action_t * jteap;
 466         int done;
 467
 468         jteap = tap->event_action;
 469
 470         done = 0;
 471         while (jteap) {
 472                 if (jteap->event == e) {
 473                         done = 1;
 474                         LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
 475                                         tap->dotted_name,
 476                                         e,
 477                                         Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
 478                                         Jim_GetString(jteap->body, NULL) );
 479                         if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
 480                                 Jim_PrintErrorMessage(interp);
 481                         }
 482                 }
 483
 484                 jteap = jteap->next;
 485         }
 486
 487         if (!done) {
 488                 LOG_DEBUG( "event %d %s - no action",
 489                                 e,
 490                                 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
 491         }
 492 }
 493
 494
 495 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
 496 {
 497         Jim_GetOptInfo goi;
 498         int e;
 499         Jim_Nvp *n;
 500         Jim_Obj *o;
 501         struct command_context_s *context;
 502
 503         enum {
 504                 JTAG_CMD_INTERFACE,
 505                 JTAG_CMD_INIT_RESET,
 506                 JTAG_CMD_NEWTAP,
 507                 JTAG_CMD_TAPENABLE,
 508                 JTAG_CMD_TAPDISABLE,
 509                 JTAG_CMD_TAPISENABLED,
 510                 JTAG_CMD_CONFIGURE,
 511                 JTAG_CMD_CGET
 512         };
 513
 514         const Jim_Nvp jtag_cmds[] = {
 515                 { .name = "interface"     , .value = JTAG_CMD_INTERFACE },
 516                 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
 517                 { .name = "newtap"        , .value = JTAG_CMD_NEWTAP },
 518                 { .name = "tapisenabled"     , .value = JTAG_CMD_TAPISENABLED },
 519                 { .name = "tapenable"     , .value = JTAG_CMD_TAPENABLE },
 520                 { .name = "tapdisable"    , .value = JTAG_CMD_TAPDISABLE },
 521                 { .name = "configure"     , .value = JTAG_CMD_CONFIGURE },
 522                 { .name = "cget"          , .value = JTAG_CMD_CGET },
 523
 524                 { .name = NULL, .value = -1 },
 525         };
 526
 527         context = Jim_GetAssocData(interp, "context");
 528         /* go past the command */
 529         Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
 530
 531         e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
 532         if( e != JIM_OK ){
 533                 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
 534                 return e;
 535         }
 536                 Jim_SetEmptyResult( goi.interp );
 537         switch( n->value ){
 538         case JTAG_CMD_INTERFACE:
 539                 /* return the name of the interface */
 540                 /* TCL code might need to know the exact type... */
 541                 /* FUTURE: we allow this as a means to "set" the interface. */
 542                 if( goi.argc != 0 ){
 543                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 544                         return JIM_ERR;
 545                 }
 546                 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
 547                 return JIM_OK;
 548         case JTAG_CMD_INIT_RESET:
 549                 if( goi.argc != 0 ){
 550                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 551                         return JIM_ERR;
 552                 }
 553                 e = jtag_init_reset(context);
 554                 if( e != ERROR_OK ){
 555                         Jim_SetResult_sprintf( goi.interp, "error: %d", e);
 556                         return JIM_ERR;
 557                 }
 558                 return JIM_OK;
 559         case JTAG_CMD_NEWTAP:
 560                 return jim_newtap_cmd( &goi );
 561                 break;
 562         case JTAG_CMD_TAPISENABLED:
 563         case JTAG_CMD_TAPENABLE:
 564         case JTAG_CMD_TAPDISABLE:
 565                 if( goi.argc != 1 ){
 566                         Jim_SetResultString( goi.interp, "Too many parameters",-1 );
 567                         return JIM_ERR;
 568                 }
 569
 570                 {
 571                         jtag_tap_t *t;
 572                         t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
 573                         if( t == NULL ){
 574                                 return JIM_ERR;
 575                         }
 576                         switch( n->value ){
 577                         case JTAG_CMD_TAPISENABLED:
 578                                 e = t->enabled;
 579                                 break;
 580                         case JTAG_CMD_TAPENABLE:
 581                                 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
 582                                 e = 1;
 583                                 t->enabled = e;
 584                                 break;
 585                         case JTAG_CMD_TAPDISABLE:
 586                                 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
 587                                 e = 0;
 588                                 t->enabled = e;
 589                                 break;
 590                         }
 591                         Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
 592                         return JIM_OK;
 593                 }
 594                 break;
 595
 596         case JTAG_CMD_CGET:
 597                 if( goi.argc < 2 ){
 598                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
 599                         return JIM_ERR;
 600                 }
 601
 602                 {
 603                         jtag_tap_t *t;
 604
 605                         Jim_GetOpt_Obj(&goi, &o);
 606                         t = jtag_tap_by_jim_obj( goi.interp, o );
 607                         if( t == NULL ){
 608                                 return JIM_ERR;
 609                         }
 610
 611                         goi.isconfigure = 0;
 612                         return jtag_tap_configure_cmd( &goi, t);
 613                 }
 614                 break;
 615
 616         case JTAG_CMD_CONFIGURE:
 617                 if( goi.argc < 3 ){
 618                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
 619                         return JIM_ERR;
 620                 }
 621
 622                 {
 623                         jtag_tap_t *t;
 624
 625                         Jim_GetOpt_Obj(&goi, &o);
 626                         t = jtag_tap_by_jim_obj( goi.interp, o );
 627                         if( t == NULL ){
 628                                 return JIM_ERR;
 629                         }
 630
 631                         goi.isconfigure = 1;
 632                         return jtag_tap_configure_cmd( &goi, t);
 633                 }
 634         }
 635
 636         return JIM_ERR;
 637 }
 638
 639 int jtag_register_commands(struct command_context_s *cmd_ctx)
 640 {
 641         register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
 642
 643         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
 644                 COMMAND_CONFIG, "try to configure interface");
 645         register_command(cmd_ctx, NULL,
 646                 "interface_list", &handle_interface_list_command,
 647                 COMMAND_ANY, "list all built-in interfaces");
 648         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
 649                 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
 650         register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
 651                 COMMAND_ANY, "set maximum jtag speed (if supported); "
 652                 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
 653         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
 654                 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
 655         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
 656                 COMMAND_ANY,
 657                 "[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]");
 658         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
 659                 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
 660         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
 661                 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
 662
 663         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
 664                 COMMAND_EXEC, "print current scan chain configuration");
 665
 666         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
 667                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
 668         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
 669                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
 670         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
 671                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
 672         register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
 673         register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
 674         register_jim(cmd_ctx, "pathmove", Jim_Command_pathmove, "move JTAG to state1 then to state2, state3, etc. <state1>,<state2>,<stat3>...");
 675
 676         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
 677                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
 678         register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
 679                 COMMAND_ANY, "verify value capture <enable|disable>");
 680         register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
 681                 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
 682         return ERROR_OK;
 683 }
 684
 685 static int default_khz(int khz, int *jtag_speed)
 686 {
 687         LOG_ERROR("Translation from khz to jtag_speed not implemented");
 688         return ERROR_FAIL;
 689 }
 690
 691 static int default_speed_div(int speed, int *khz)
 692 {
 693         LOG_ERROR("Translation from jtag_speed to khz not implemented");
 694         return ERROR_FAIL;
 695 }
 696
 697 static int default_power_dropout(int *dropout)
 698 {
 699         *dropout=0; /* by default we can't detect power dropout */
 700         return ERROR_OK;
 701 }
 702
 703 static int default_srst_asserted(int *srst_asserted)
 704 {
 705         *srst_asserted=0; /* by default we can't detect srst asserted */
 706         return ERROR_OK;
 707 }
 708
 709 static int handle_interface_command(struct command_context_s *cmd_ctx,
 710                 char *cmd, char **args, int argc)
 711 {
 712         /* check whether the interface is already configured */
 713         if (jtag_interface)
 714         {
 715                 LOG_WARNING("Interface already configured, ignoring");
 716                 return ERROR_OK;
 717         }
 718
 719         /* interface name is a mandatory argument */
 720         if (argc != 1 || args[0][0] == '\0')
 721                 return ERROR_COMMAND_SYNTAX_ERROR;
 722
 723         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 724         {
 725                 if (strcmp(args[0], jtag_interfaces[i]->name) != 0)
 726                         continue;
 727
 728                 int retval = jtag_interfaces[i]->register_commands(cmd_ctx);
 729                 if (ERROR_OK != retval)
 730                                 return retval;
 731
 732                 jtag_interface = jtag_interfaces[i];
 733
 734                 if (jtag_interface->khz == NULL)
 735                         jtag_interface->khz = default_khz;
 736                 if (jtag_interface->speed_div == NULL)
 737                         jtag_interface->speed_div = default_speed_div;
 738                 if (jtag_interface->power_dropout == NULL)
 739                         jtag_interface->power_dropout = default_power_dropout;
 740                 if (jtag_interface->srst_asserted == NULL)
 741                         jtag_interface->srst_asserted = default_srst_asserted;
 742
 743                 return ERROR_OK;
 744         }
 745
 746         /* no valid interface was found (i.e. the configuration option,
 747          * didn't match one of the compiled-in interfaces
 748          */
 749         LOG_ERROR("The specified JTAG interface was not found (%s)", args[0]);
 750         handle_interface_list_command(cmd_ctx, cmd, args, argc);
 751         return ERROR_JTAG_INVALID_INTERFACE;
 752 }
 753
 754 static int handle_interface_list_command(struct command_context_s *cmd_ctx,
 755                 char *cmd, char **args, int argc)
 756 {
 757         if (strcmp(cmd, "interface_list") == 0 && argc > 0)
 758                 return ERROR_COMMAND_SYNTAX_ERROR;
 759
 760         command_print(cmd_ctx, "The following JTAG interfaces are available:");
 761         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 762         {
 763                 const char *name = jtag_interfaces[i]->name;
 764                 command_print(cmd_ctx, "%u: %s", i + 1, name);
 765         }
 766
 767         return ERROR_OK;
 768 }
 769
 770 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 771 {
 772         int e;
 773         char buf[1024];
 774         Jim_Obj *newargs[ 10 ];
 775         /*
 776          * CONVERT SYNTAX
 777          * argv[-1] = command
 778          * argv[ 0] = ir length
 779          * argv[ 1] = ir capture
 780          * argv[ 2] = ir mask
 781          * argv[ 3] = not actually used by anything but in the docs
 782          */
 783
 784         if( argc < 4 ){
 785                 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
 786                 return ERROR_OK;
 787         }
 788         command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
 789         command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
 790                                    args[0],
 791                                    args[1],
 792                                    args[2] );
 793         command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
 794         command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
 795         command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
 796         command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
 797
 798         newargs[0] = Jim_NewStringObj( interp, "jtag", -1   );
 799         newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
 800         sprintf( buf, "chip%d", jtag_tap_count() );
 801         newargs[2] = Jim_NewStringObj( interp, buf, -1 );
 802         sprintf( buf, "tap%d", jtag_tap_count() );
 803         newargs[3] = Jim_NewStringObj( interp, buf, -1  );
 804         newargs[4] = Jim_NewStringObj( interp, "-irlen", -1  );
 805         newargs[5] = Jim_NewStringObj( interp, args[0], -1  );
 806         newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1  );
 807         newargs[7] = Jim_NewStringObj( interp, args[1], -1  );
 808         newargs[8] = Jim_NewStringObj( interp, "-irmask", -1  );
 809         newargs[9] = Jim_NewStringObj( interp, args[2], -1  );
 810
 811         command_print( cmd_ctx, "NEW COMMAND:");
 812         sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
 813                          Jim_GetString( newargs[0], NULL ),
 814                          Jim_GetString( newargs[1], NULL ),
 815                          Jim_GetString( newargs[2], NULL ),
 816                          Jim_GetString( newargs[3], NULL ),
 817                          Jim_GetString( newargs[4], NULL ),
 818                          Jim_GetString( newargs[5], NULL ),
 819                          Jim_GetString( newargs[6], NULL ),
 820                          Jim_GetString( newargs[7], NULL ),
 821                          Jim_GetString( newargs[8], NULL ),
 822                          Jim_GetString( newargs[9], NULL ) );
 823
 824         e = jim_jtag_command( interp, 10, newargs );
 825         if( e != JIM_OK ){
 826                 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
 827         }
 828         return e;
 829 }
 830
 831 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 832 {
 833         jtag_tap_t *tap;
 834
 835         tap = jtag_all_taps();
 836         command_print(cmd_ctx, "     TapName            | Enabled |   IdCode      Expected    IrLen IrCap  IrMask Instr     ");
 837         command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
 838
 839         while( tap ){
 840                 u32 expected, expected_mask, cur_instr, ii;
 841                 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
 842                 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
 843                 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
 844
 845                 command_print(cmd_ctx,
 846                                           "%2d | %-18s |    %c    | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
 847                                           tap->abs_chain_position,
 848                                           tap->dotted_name,
 849                                           tap->enabled ? 'Y' : 'n',
 850                                           tap->idcode,
 851                                           (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
 852                                           tap->ir_length,
 853                                           expected,
 854                                           expected_mask,
 855                                           cur_instr);
 856
 857                 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
 858                         command_print(cmd_ctx, "   |                    |         |            | 0x%08x |      |      |      |         ",
 859                                                   tap->expected_ids[ii]);
 860                 }
 861
 862                 tap = tap->next_tap;
 863         }
 864
 865         return ERROR_OK;
 866 }
 867
 868 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 869 {
 870         int new_cfg = 0;
 871         int mask = 0;
 872
 873         if (argc < 1)
 874                 return ERROR_COMMAND_SYNTAX_ERROR;
 875
 876         /* Original versions cared about the order of these tokens:
 877          *   reset_config signals [combination [trst_type [srst_type]]]
 878          * They also clobbered the previous configuration even on error.
 879          *
 880          * Here we don't care about the order, and only change values
 881          * which have been explicitly specified.
 882          */
 883         for (; argc; argc--, args++) {
 884                 int tmp = 0;
 885                 int m;
 886
 887                 /* signals */
 888                 m = RESET_HAS_TRST | RESET_HAS_SRST;
 889                 if (strcmp(*args, "none") == 0)
 890                         tmp = RESET_NONE;
 891                 else if (strcmp(*args, "trst_only") == 0)
 892                         tmp = RESET_HAS_TRST;
 893                 else if (strcmp(*args, "srst_only") == 0)
 894                         tmp = RESET_HAS_SRST;
 895                 else if (strcmp(*args, "trst_and_srst") == 0)
 896                         tmp = RESET_HAS_TRST | RESET_HAS_SRST;
 897                 else
 898                         m = 0;
 899                 if (mask & m) {
 900                         LOG_ERROR("extra reset_config %s spec (%s)",
 901                                         "signal", *args);
 902                         return ERROR_INVALID_ARGUMENTS;
 903                 }
 904                 if (m)
 905                         goto next;
 906
 907                 /* combination (options for broken wiring) */
 908                 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 909                 if (strcmp(*args, "separate") == 0)
 910                         /* separate reset lines - default */;
 911                 else if (strcmp(*args, "srst_pulls_trst") == 0)
 912                         tmp |= RESET_SRST_PULLS_TRST;
 913                 else if (strcmp(*args, "trst_pulls_srst") == 0)
 914                         tmp |= RESET_TRST_PULLS_SRST;
 915                 else if (strcmp(*args, "combined") == 0)
 916                         tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 917                 else
 918                         m = 0;
 919                 if (mask & m) {
 920                         LOG_ERROR("extra reset_config %s spec (%s)",
 921                                         "combination", *args);
 922                         return ERROR_INVALID_ARGUMENTS;
 923                 }
 924                 if (m)
 925                         goto next;
 926
 927                 /* trst_type (NOP without HAS_TRST) */
 928                 m = RESET_TRST_OPEN_DRAIN;
 929                 if (strcmp(*args, "trst_open_drain") == 0)
 930                         tmp |= RESET_TRST_OPEN_DRAIN;
 931                 else if (strcmp(*args, "trst_push_pull") == 0)
 932                         /* push/pull from adapter - default */;
 933                 else
 934                         m = 0;
 935                 if (mask & m) {
 936                         LOG_ERROR("extra reset_config %s spec (%s)",
 937                                         "trst_type", *args);
 938                         return ERROR_INVALID_ARGUMENTS;
 939                 }
 940                 if (m)
 941                         goto next;
 942
 943                 /* srst_type (NOP without HAS_SRST) */
 944                 m |= RESET_SRST_PUSH_PULL;
 945                 if (strcmp(*args, "srst_push_pull") == 0)
 946                         tmp |= RESET_SRST_PUSH_PULL;
 947                 else if (strcmp(*args, "srst_open_drain") == 0)
 948                         /* open drain from adapter - default */;
 949                 else
 950                         m = 0;
 951                 if (mask & m) {
 952                         LOG_ERROR("extra reset_config %s spec (%s)",
 953                                         "srst_type", *args);
 954                         return ERROR_INVALID_ARGUMENTS;
 955                 }
 956                 if (m)
 957                         goto next;
 958
 959                 /* caller provided nonsense; fail */
 960                 LOG_ERROR("unknown reset_config flag (%s)", *args);
 961                 return ERROR_INVALID_ARGUMENTS;
 962
 963 next:
 964                 /* Remember the bits which were specified (mask)
 965                  * and their new values (new_cfg).
 966                  */
 967                 mask |= m;
 968                 new_cfg |= tmp;
 969         }
 970
 971         /* clear previous values of those bits, save new values */
 972         enum reset_types old_cfg = jtag_get_reset_config();
 973         old_cfg &= ~mask;
 974         new_cfg |= old_cfg;
 975         jtag_set_reset_config(new_cfg);
 976
 977         return ERROR_OK;
 978 }
 979
 980 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx,
 981                 char *cmd, char **args, int argc)
 982 {
 983         if (argc > 1)
 984                 return ERROR_COMMAND_SYNTAX_ERROR;
 985         if (argc == 1)
 986         {
 987                 unsigned delay;
 988                 int retval = parse_uint(args[0], &delay);
 989                 if (ERROR_OK != retval)
 990                         return retval;
 991                 jtag_set_nsrst_delay(delay);
 992         }
 993         command_print(cmd_ctx, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
 994         return ERROR_OK;
 995 }
 996
 997 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx,
 998                 char *cmd, char **args, int argc)
 999 {
1000         if (argc > 1)
1001                 return ERROR_COMMAND_SYNTAX_ERROR;
1002         if (argc == 1)
1003         {
1004                 unsigned delay;
1005                 int retval = parse_uint(args[0], &delay);
1006                 if (ERROR_OK != retval)
1007                         return retval;
1008                 jtag_set_ntrst_delay(delay);
1009         }
1010         command_print(cmd_ctx, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
1011         return ERROR_OK;
1012 }
1013
1014 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1015 {
1016         int retval = ERROR_OK;
1017
1018         if (argc > 1)
1019                 return ERROR_COMMAND_SYNTAX_ERROR;
1020         if (argc == 1)
1021         {
1022                 LOG_DEBUG("handle jtag speed");
1023
1024                 unsigned cur_speed = 0;
1025                 int retval = parse_uint(args[0], &cur_speed);
1026                 if (ERROR_OK != retval)
1027                         return retval;
1028                 retval = jtag_set_speed(cur_speed);
1029
1030         }
1031         command_print(cmd_ctx, "jtag_speed: %d", jtag_get_speed());
1032
1033         return retval;
1034 }
1035
1036 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1037 {
1038         if (argc > 1)
1039                 return ERROR_COMMAND_SYNTAX_ERROR;
1040
1041         int retval = ERROR_OK;
1042         if (argc == 1)
1043         {
1044                 unsigned khz = 0;
1045                 int retval = parse_uint(args[0], &khz);
1046                 if (ERROR_OK != retval)
1047                         return retval;
1048                 retval = jtag_config_khz(khz);
1049                 if (ERROR_OK != retval)
1050                         return retval;
1051         }
1052
1053         int cur_speed = jtag_get_speed_khz();
1054         retval = jtag_get_speed_readable(&cur_speed);
1055         if (ERROR_OK != retval)
1056                 return retval;
1057
1058         if (cur_speed)
1059                 command_print(cmd_ctx, "%d kHz", cur_speed);
1060         else
1061                 command_print(cmd_ctx, "RCLK - adaptive");
1062
1063         return retval;
1064 }
1065
1066 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx,
1067                 char *cmd, char **args, int argc)
1068 {
1069         if (argc != 2)
1070                 return ERROR_COMMAND_SYNTAX_ERROR;
1071
1072         int trst = -1;
1073         if (args[0][0] == '1')
1074                 trst = 1;
1075         else if (args[0][0] == '0')
1076                 trst = 0;
1077         else
1078                 return ERROR_COMMAND_SYNTAX_ERROR;
1079
1080         int srst = -1;
1081         if (args[1][0] == '1')
1082                 srst = 1;
1083         else if (args[1][0] == '0')
1084                 srst = 0;
1085         else
1086                 return ERROR_COMMAND_SYNTAX_ERROR;
1087
1088         if (jtag_interface_init(cmd_ctx) != ERROR_OK)
1089                 return ERROR_JTAG_INIT_FAILED;
1090
1091         jtag_add_reset(trst, srst);
1092         jtag_execute_queue();
1093
1094         return ERROR_OK;
1095 }
1096
1097 static int handle_runtest_command(struct command_context_s *cmd_ctx,
1098                 char *cmd, char **args, int argc)
1099 {
1100         if (argc != 1)
1101                 return ERROR_COMMAND_SYNTAX_ERROR;
1102
1103         unsigned num_clocks;
1104         int retval = parse_uint(args[0], &num_clocks);
1105         if (ERROR_OK != retval)
1106                 return retval;
1107
1108         jtag_add_runtest(num_clocks, jtag_get_end_state());
1109         jtag_execute_queue();
1110
1111         return ERROR_OK;
1112 }
1113
1114 /*
1115  * For "irscan" or "drscan" commands, the "end" (really, "next") state
1116  * should be stable ... and *NOT* a shift state, otherwise free-running
1117  * jtag clocks could change the values latched by the update state.
1118  */
1119 static bool scan_is_safe(tap_state_t state)
1120 {
1121         switch (state)
1122         {
1123         case TAP_RESET:
1124         case TAP_IDLE:
1125         case TAP_DRPAUSE:
1126         case TAP_IRPAUSE:
1127                 return true;
1128         default:
1129                 return false;
1130         }
1131 }
1132
1133
1134 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1135 {
1136         int i;
1137         scan_field_t *fields;
1138         jtag_tap_t *tap;
1139         tap_state_t endstate;
1140
1141         if ((argc < 2) || (argc % 2))
1142         {
1143                 return ERROR_COMMAND_SYNTAX_ERROR;
1144         }
1145
1146         /* optional "-endstate" "statename" at the end of the arguments,
1147          * so that e.g. IRPAUSE can let us load the data register before
1148          * entering RUN/IDLE to execute the instruction we load here.
1149          */
1150         endstate = TAP_IDLE;
1151
1152         if( argc >= 4 ){
1153                 /* have at least one pair of numbers. */
1154                 /* is last pair the magic text? */
1155                 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
1156                         const char *cpA;
1157                         const char *cpS;
1158                         cpA = args[ argc-1 ];
1159                         for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
1160                                 cpS = tap_state_name( endstate );
1161                                 if( 0 == strcmp( cpA, cpS ) ){
1162                                         break;
1163                                 }
1164                         }
1165                         if( endstate >= TAP_NUM_STATES ){
1166                                 return ERROR_COMMAND_SYNTAX_ERROR;
1167                         } else {
1168                                 if (!scan_is_safe(endstate))
1169                                         LOG_WARNING("irscan with unsafe "
1170                                                         "endstate \"%s\"", cpA);
1171                                 /* found - remove the last 2 args */
1172                                 argc -= 2;
1173                         }
1174                 }
1175         }
1176
1177         int num_fields = argc / 2;
1178         size_t fields_len = sizeof(scan_field_t) * num_fields;
1179         fields = malloc(fields_len);
1180         memset(fields, 0, fields_len);
1181
1182         int retval;
1183         for (i = 0; i < num_fields; i++)
1184         {
1185                 tap = jtag_tap_by_string( args[i*2] );
1186                 if (tap==NULL)
1187                 {
1188                         command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
1189                         return ERROR_FAIL;
1190                 }
1191                 int field_size = tap->ir_length;
1192                 fields[i].tap = tap;
1193                 fields[i].num_bits = field_size;
1194                 fields[i].out_value = malloc(CEIL(field_size, 8));
1195
1196                 u32 value;
1197                 retval = parse_u32(args[i * 2 + 1], &value);
1198                 if (ERROR_OK != retval)
1199                         goto error_return;
1200                 buf_set_u32(fields[i].out_value, 0, field_size, value);
1201                 fields[i].in_value = NULL;
1202         }
1203
1204         /* did we have an endstate? */
1205         jtag_add_ir_scan(num_fields, fields, endstate);
1206
1207         retval = jtag_execute_queue();
1208
1209 error_return:
1210         for (i = 0; i < num_fields; i++)
1211         {
1212                 if (NULL != fields[i].out_value)
1213                         free(fields[i].out_value);
1214         }
1215
1216         free (fields);
1217
1218         return retval;
1219 }
1220
1221 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1222 {
1223         int retval;
1224         scan_field_t *fields;
1225         int num_fields;
1226         int field_count = 0;
1227         int i, e;
1228         jtag_tap_t *tap;
1229         tap_state_t endstate;
1230
1231         /* args[1] = device
1232          * args[2] = num_bits
1233          * args[3] = hex string
1234          * ... repeat num bits and hex string ...
1235          *
1236          * .. optionally:
1237         *     args[N-2] = "-endstate"
1238          *     args[N-1] = statename
1239          */
1240         if ((argc < 4) || ((argc % 2)!=0))
1241         {
1242                 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
1243                 return JIM_ERR;
1244         }
1245
1246         endstate = TAP_IDLE;
1247
1248         script_debug(interp, "drscan", argc, args);
1249
1250         /* validate arguments as numbers */
1251         e = JIM_OK;
1252         for (i = 2; i < argc; i+=2)
1253         {
1254                 long bits;
1255                 const char *cp;
1256
1257                 e = Jim_GetLong(interp, args[i], &bits);
1258                 /* If valid - try next arg */
1259                 if( e == JIM_OK ){
1260                         continue;
1261                 }
1262
1263                 /* Not valid.. are we at the end? */
1264                 if ( ((i+2) != argc) ){
1265                         /* nope, then error */
1266                         return e;
1267                 }
1268
1269                 /* it could be: "-endstate FOO"
1270                  * e.g. DRPAUSE so we can issue more instructions
1271                  * before entering RUN/IDLE and executing them.
1272                  */
1273
1274                 /* get arg as a string. */
1275                 cp = Jim_GetString( args[i], NULL );
1276                 /* is it the magic? */
1277                 if( 0 == strcmp( "-endstate", cp ) ){
1278                         /* is the statename valid? */
1279                         cp = Jim_GetString( args[i+1], NULL );
1280
1281                         /* see if it is a valid state name */
1282                         endstate = tap_state_by_name(cp);
1283                         if( endstate < 0 ){
1284                                 /* update the error message */
1285                                 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
1286                         } else {
1287                                 if (!scan_is_safe(endstate))
1288                                         LOG_WARNING("drscan with unsafe "
1289                                                         "endstate \"%s\"", cp);
1290
1291                                 /* valid - so clear the error */
1292                                 e = JIM_OK;
1293                                 /* and remove the last 2 args */
1294                                 argc -= 2;
1295                         }
1296                 }
1297
1298                 /* Still an error? */
1299                 if( e != JIM_OK ){
1300                         return e; /* too bad */
1301                 }
1302         } /* validate args */
1303
1304         tap = jtag_tap_by_jim_obj( interp, args[1] );
1305         if( tap == NULL ){
1306                 return JIM_ERR;
1307         }
1308
1309         num_fields=(argc-2)/2;
1310         fields = malloc(sizeof(scan_field_t) * num_fields);
1311         for (i = 2; i < argc; i+=2)
1312         {
1313                 long bits;
1314                 int len;
1315                 const char *str;
1316
1317                 Jim_GetLong(interp, args[i], &bits);
1318                 str = Jim_GetString(args[i+1], &len);
1319
1320                 fields[field_count].tap = tap;
1321                 fields[field_count].num_bits = bits;
1322                 fields[field_count].out_value = malloc(CEIL(bits, 8));
1323                 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
1324                 fields[field_count].in_value = fields[field_count].out_value;
1325                 field_count++;
1326         }
1327
1328         jtag_add_dr_scan(num_fields, fields, endstate);
1329
1330         retval = jtag_execute_queue();
1331         if (retval != ERROR_OK)
1332         {
1333                 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
1334                 return JIM_ERR;
1335         }
1336
1337         field_count=0;
1338         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
1339         for (i = 2; i < argc; i+=2)
1340         {
1341                 long bits;
1342                 char *str;
1343
1344                 Jim_GetLong(interp, args[i], &bits);
1345                 str = buf_to_str(fields[field_count].in_value, bits, 16);
1346                 free(fields[field_count].out_value);
1347
1348                 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
1349                 free(str);
1350                 field_count++;
1351         }
1352
1353         Jim_SetResult(interp, list);
1354
1355         free(fields);
1356
1357         return JIM_OK;
1358 }
1359
1360
1361 static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1362 {
1363         tap_state_t states[8];
1364
1365         if ((argc < 2) || ((size_t)argc > (sizeof(states)/sizeof(*states)+1)))
1366         {
1367                 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
1368                 return JIM_ERR;
1369         }
1370
1371         script_debug(interp, "pathmove", argc, args);
1372
1373         int i;
1374         for (i=0; i<argc-1; i++)
1375         {
1376                 const char *cp;
1377                 cp = Jim_GetString( args[i+1], NULL );
1378                 states[i] = tap_state_by_name(cp);
1379                 if( states[i] < 0 )
1380                 {
1381                         /* update the error message */
1382                         Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
1383                         return JIM_ERR;
1384                 }
1385         }
1386
1387         if ((jtag_add_statemove(states[0]) != ERROR_OK) || ( jtag_execute_queue()!= ERROR_OK))
1388         {
1389                 Jim_SetResultString(interp, "pathmove: jtag execute failed",-1);
1390                 return JIM_ERR;
1391         }
1392
1393         jtag_add_pathmove(argc-2, states+1);
1394
1395         if (jtag_execute_queue()!= ERROR_OK)
1396         {
1397                 Jim_SetResultString(interp, "pathmove: failed",-1);
1398                 return JIM_ERR;
1399         }
1400
1401         return JIM_OK;
1402 }
1403
1404
1405 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1406 {
1407         script_debug(interp, "flush_count", argc, args);
1408
1409         Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
1410
1411         return JIM_OK;
1412 }
1413
1414
1415 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1416 {
1417         if (argc > 1)
1418                 return ERROR_COMMAND_SYNTAX_ERROR;
1419
1420         if (argc == 1)
1421         {
1422                 if (strcmp(args[0], "enable") == 0)
1423                         jtag_set_verify_capture_ir(true);
1424                 else if (strcmp(args[0], "disable") == 0)
1425                         jtag_set_verify_capture_ir(false);
1426                 else
1427                         return ERROR_COMMAND_SYNTAX_ERROR;
1428         }
1429
1430         const char *status = jtag_will_verify_capture_ir() ? "enabled": "disabled";
1431         command_print(cmd_ctx, "verify Capture-IR is %s", status);
1432
1433         return ERROR_OK;
1434 }
1435
1436 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1437 {
1438         if (argc > 1)
1439                 return ERROR_COMMAND_SYNTAX_ERROR;
1440
1441         if (argc == 1)
1442         {
1443                 if (strcmp(args[0], "enable") == 0)
1444                         jtag_set_verify(true);
1445                 else if (strcmp(args[0], "disable") == 0)
1446                         jtag_set_verify(false);
1447                 else
1448                         return ERROR_COMMAND_SYNTAX_ERROR;
1449         }
1450
1451         const char *status = jtag_will_verify() ? "enabled": "disabled";
1452         command_print(cmd_ctx, "verify jtag capture is %s", status);
1453
1454         return ERROR_OK;
1455 }
1456
1457 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1458 {
1459         if (argc > 1)
1460                 return ERROR_COMMAND_SYNTAX_ERROR;
1461
1462         if (argc == 1)
1463         {
1464                 bool use_new_table;
1465                 if (strcmp(args[0], "short") == 0)
1466                         use_new_table = true;
1467                 else if (strcmp(args[0], "long") == 0)
1468                         use_new_table = false;
1469                 else
1470                         return ERROR_COMMAND_SYNTAX_ERROR;
1471
1472                 tap_use_new_tms_table(use_new_table);
1473         }
1474
1475         command_print(cmd_ctx, "tms sequence is  %s",
1476                         tap_uses_new_tms_table() ? "short": "long");
1477
1478         return ERROR_OK;
1479 }
1480