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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) (8 * 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                         } else {
 482                                 /* NOTE:  we currently assume the handlers
 483                                  * can't fail.  That presumes later code
 484                                  * will be verifying the scan chains ...
 485                                  */
 486                                 tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
 487                         }
 488                 }
 489
 490                 jteap = jteap->next;
 491         }
 492
 493         if (!done) {
 494                 LOG_DEBUG( "event %d %s - no action",
 495                                 e,
 496                                 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
 497         }
 498 }
 499
 500
 501 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
 502 {
 503         Jim_GetOptInfo goi;
 504         int e;
 505         Jim_Nvp *n;
 506         Jim_Obj *o;
 507         struct command_context_s *context;
 508
 509         enum {
 510                 JTAG_CMD_INTERFACE,
 511                 JTAG_CMD_INIT_RESET,
 512                 JTAG_CMD_NEWTAP,
 513                 JTAG_CMD_TAPENABLE,
 514                 JTAG_CMD_TAPDISABLE,
 515                 JTAG_CMD_TAPISENABLED,
 516                 JTAG_CMD_CONFIGURE,
 517                 JTAG_CMD_CGET
 518         };
 519
 520         const Jim_Nvp jtag_cmds[] = {
 521                 { .name = "interface"     , .value = JTAG_CMD_INTERFACE },
 522                 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
 523                 { .name = "newtap"        , .value = JTAG_CMD_NEWTAP },
 524                 { .name = "tapisenabled"     , .value = JTAG_CMD_TAPISENABLED },
 525                 { .name = "tapenable"     , .value = JTAG_CMD_TAPENABLE },
 526                 { .name = "tapdisable"    , .value = JTAG_CMD_TAPDISABLE },
 527                 { .name = "configure"     , .value = JTAG_CMD_CONFIGURE },
 528                 { .name = "cget"          , .value = JTAG_CMD_CGET },
 529
 530                 { .name = NULL, .value = -1 },
 531         };
 532
 533         context = Jim_GetAssocData(interp, "context");
 534         /* go past the command */
 535         Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
 536
 537         e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
 538         if( e != JIM_OK ){
 539                 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
 540                 return e;
 541         }
 542                 Jim_SetEmptyResult( goi.interp );
 543         switch( n->value ){
 544         case JTAG_CMD_INTERFACE:
 545                 /* return the name of the interface */
 546                 /* TCL code might need to know the exact type... */
 547                 /* FUTURE: we allow this as a means to "set" the interface. */
 548                 if( goi.argc != 0 ){
 549                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 550                         return JIM_ERR;
 551                 }
 552                 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
 553                 return JIM_OK;
 554         case JTAG_CMD_INIT_RESET:
 555                 if( goi.argc != 0 ){
 556                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 557                         return JIM_ERR;
 558                 }
 559                 e = jtag_init_reset(context);
 560                 if( e != ERROR_OK ){
 561                         Jim_SetResult_sprintf( goi.interp, "error: %d", e);
 562                         return JIM_ERR;
 563                 }
 564                 return JIM_OK;
 565         case JTAG_CMD_NEWTAP:
 566                 return jim_newtap_cmd( &goi );
 567                 break;
 568         case JTAG_CMD_TAPISENABLED:
 569         case JTAG_CMD_TAPENABLE:
 570         case JTAG_CMD_TAPDISABLE:
 571                 if( goi.argc != 1 ){
 572                         Jim_SetResultString( goi.interp, "Too many parameters",-1 );
 573                         return JIM_ERR;
 574                 }
 575
 576                 {
 577                         jtag_tap_t *t;
 578
 579                         t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
 580                         if (t == NULL)
 581                                 return JIM_ERR;
 582
 583                         switch (n->value) {
 584                         case JTAG_CMD_TAPISENABLED:
 585                                 break;
 586                         case JTAG_CMD_TAPENABLE:
 587                                 if (t->enabled)
 588                                         break;
 589                                 jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
 590                                 if (!t->enabled)
 591                                         break;
 592
 593                                 /* FIXME add JTAG sanity checks, w/o TLR
 594                                  *  - scan chain length grew by one (this)
 595                                  *  - IDs and IR lengths are as expected
 596                                  */
 597                                 break;
 598                         case JTAG_CMD_TAPDISABLE:
 599                                 if (!t->enabled)
 600                                         break;
 601                                 jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
 602                                 if (t->enabled)
 603                                         break;
 604
 605                                 /* FIXME add JTAG sanity checks, w/o TLR
 606                                  *  - scan chain length shrank by one (this)
 607                                  *  - IDs and IR lengths are as expected
 608                                  */
 609                                 break;
 610                         }
 611                         e = t->enabled;
 612                         Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
 613                         return JIM_OK;
 614                 }
 615                 break;
 616
 617         case JTAG_CMD_CGET:
 618                 if( goi.argc < 2 ){
 619                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
 620                         return JIM_ERR;
 621                 }
 622
 623                 {
 624                         jtag_tap_t *t;
 625
 626                         Jim_GetOpt_Obj(&goi, &o);
 627                         t = jtag_tap_by_jim_obj( goi.interp, o );
 628                         if( t == NULL ){
 629                                 return JIM_ERR;
 630                         }
 631
 632                         goi.isconfigure = 0;
 633                         return jtag_tap_configure_cmd( &goi, t);
 634                 }
 635                 break;
 636
 637         case JTAG_CMD_CONFIGURE:
 638                 if( goi.argc < 3 ){
 639                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
 640                         return JIM_ERR;
 641                 }
 642
 643                 {
 644                         jtag_tap_t *t;
 645
 646                         Jim_GetOpt_Obj(&goi, &o);
 647                         t = jtag_tap_by_jim_obj( goi.interp, o );
 648                         if( t == NULL ){
 649                                 return JIM_ERR;
 650                         }
 651
 652                         goi.isconfigure = 1;
 653                         return jtag_tap_configure_cmd( &goi, t);
 654                 }
 655         }
 656
 657         return JIM_ERR;
 658 }
 659
 660 int jtag_register_commands(struct command_context_s *cmd_ctx)
 661 {
 662         register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
 663
 664         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
 665                 COMMAND_CONFIG, "try to configure interface");
 666         register_command(cmd_ctx, NULL,
 667                 "interface_list", &handle_interface_list_command,
 668                 COMMAND_ANY, "list all built-in interfaces");
 669         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
 670                 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
 671         register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
 672                 COMMAND_ANY, "set maximum jtag speed (if supported); "
 673                 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
 674         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
 675                 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
 676         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
 677                 COMMAND_ANY,
 678                 "[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]");
 679         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
 680                 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
 681         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
 682                 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
 683
 684         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
 685                 COMMAND_EXEC, "print current scan chain configuration");
 686
 687         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
 688                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
 689         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
 690                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
 691         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
 692                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
 693         register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
 694         register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
 695         register_jim(cmd_ctx, "pathmove", Jim_Command_pathmove, "move JTAG to state1 then to state2, state3, etc. <state1>,<state2>,<stat3>...");
 696
 697         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
 698                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
 699         register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
 700                 COMMAND_ANY, "verify value capture <enable|disable>");
 701         register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
 702                 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
 703         return ERROR_OK;
 704 }
 705
 706 static int default_khz(int khz, int *jtag_speed)
 707 {
 708         LOG_ERROR("Translation from khz to jtag_speed not implemented");
 709         return ERROR_FAIL;
 710 }
 711
 712 static int default_speed_div(int speed, int *khz)
 713 {
 714         LOG_ERROR("Translation from jtag_speed to khz not implemented");
 715         return ERROR_FAIL;
 716 }
 717
 718 static int default_power_dropout(int *dropout)
 719 {
 720         *dropout=0; /* by default we can't detect power dropout */
 721         return ERROR_OK;
 722 }
 723
 724 static int default_srst_asserted(int *srst_asserted)
 725 {
 726         *srst_asserted=0; /* by default we can't detect srst asserted */
 727         return ERROR_OK;
 728 }
 729
 730 static int handle_interface_command(struct command_context_s *cmd_ctx,
 731                 char *cmd, char **args, int argc)
 732 {
 733         /* check whether the interface is already configured */
 734         if (jtag_interface)
 735         {
 736                 LOG_WARNING("Interface already configured, ignoring");
 737                 return ERROR_OK;
 738         }
 739
 740         /* interface name is a mandatory argument */
 741         if (argc != 1 || args[0][0] == '\0')
 742                 return ERROR_COMMAND_SYNTAX_ERROR;
 743
 744         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 745         {
 746                 if (strcmp(args[0], jtag_interfaces[i]->name) != 0)
 747                         continue;
 748
 749                 int retval = jtag_interfaces[i]->register_commands(cmd_ctx);
 750                 if (ERROR_OK != retval)
 751                                 return retval;
 752
 753                 jtag_interface = jtag_interfaces[i];
 754
 755                 if (jtag_interface->khz == NULL)
 756                         jtag_interface->khz = default_khz;
 757                 if (jtag_interface->speed_div == NULL)
 758                         jtag_interface->speed_div = default_speed_div;
 759                 if (jtag_interface->power_dropout == NULL)
 760                         jtag_interface->power_dropout = default_power_dropout;
 761                 if (jtag_interface->srst_asserted == NULL)
 762                         jtag_interface->srst_asserted = default_srst_asserted;
 763
 764                 return ERROR_OK;
 765         }
 766
 767         /* no valid interface was found (i.e. the configuration option,
 768          * didn't match one of the compiled-in interfaces
 769          */
 770         LOG_ERROR("The specified JTAG interface was not found (%s)", args[0]);
 771         handle_interface_list_command(cmd_ctx, cmd, args, argc);
 772         return ERROR_JTAG_INVALID_INTERFACE;
 773 }
 774
 775 static int handle_interface_list_command(struct command_context_s *cmd_ctx,
 776                 char *cmd, char **args, int argc)
 777 {
 778         if (strcmp(cmd, "interface_list") == 0 && argc > 0)
 779                 return ERROR_COMMAND_SYNTAX_ERROR;
 780
 781         command_print(cmd_ctx, "The following JTAG interfaces are available:");
 782         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 783         {
 784                 const char *name = jtag_interfaces[i]->name;
 785                 command_print(cmd_ctx, "%u: %s", i + 1, name);
 786         }
 787
 788         return ERROR_OK;
 789 }
 790
 791 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 792 {
 793         int e;
 794         char buf[1024];
 795         Jim_Obj *newargs[ 10 ];
 796         /*
 797          * CONVERT SYNTAX
 798          * argv[-1] = command
 799          * argv[ 0] = ir length
 800          * argv[ 1] = ir capture
 801          * argv[ 2] = ir mask
 802          * argv[ 3] = not actually used by anything but in the docs
 803          */
 804
 805         if( argc < 4 ){
 806                 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
 807                 return ERROR_OK;
 808         }
 809         command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
 810         command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
 811                                    args[0],
 812                                    args[1],
 813                                    args[2] );
 814         command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
 815         command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
 816         command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
 817         command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
 818
 819         newargs[0] = Jim_NewStringObj( interp, "jtag", -1   );
 820         newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
 821         sprintf( buf, "chip%d", jtag_tap_count() );
 822         newargs[2] = Jim_NewStringObj( interp, buf, -1 );
 823         sprintf( buf, "tap%d", jtag_tap_count() );
 824         newargs[3] = Jim_NewStringObj( interp, buf, -1  );
 825         newargs[4] = Jim_NewStringObj( interp, "-irlen", -1  );
 826         newargs[5] = Jim_NewStringObj( interp, args[0], -1  );
 827         newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1  );
 828         newargs[7] = Jim_NewStringObj( interp, args[1], -1  );
 829         newargs[8] = Jim_NewStringObj( interp, "-irmask", -1  );
 830         newargs[9] = Jim_NewStringObj( interp, args[2], -1  );
 831
 832         command_print( cmd_ctx, "NEW COMMAND:");
 833         sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
 834                          Jim_GetString( newargs[0], NULL ),
 835                          Jim_GetString( newargs[1], NULL ),
 836                          Jim_GetString( newargs[2], NULL ),
 837                          Jim_GetString( newargs[3], NULL ),
 838                          Jim_GetString( newargs[4], NULL ),
 839                          Jim_GetString( newargs[5], NULL ),
 840                          Jim_GetString( newargs[6], NULL ),
 841                          Jim_GetString( newargs[7], NULL ),
 842                          Jim_GetString( newargs[8], NULL ),
 843                          Jim_GetString( newargs[9], NULL ) );
 844
 845         e = jim_jtag_command( interp, 10, newargs );
 846         if( e != JIM_OK ){
 847                 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
 848         }
 849         return e;
 850 }
 851
 852 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 853 {
 854         jtag_tap_t *tap;
 855
 856         tap = jtag_all_taps();
 857         command_print(cmd_ctx, "     TapName            | Enabled |   IdCode      Expected    IrLen IrCap  IrMask Instr     ");
 858         command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
 859
 860         while( tap ){
 861                 u32 expected, expected_mask, cur_instr, ii;
 862                 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
 863                 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
 864                 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
 865
 866                 command_print(cmd_ctx,
 867                                           "%2d | %-18s |    %c    | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
 868                                           tap->abs_chain_position,
 869                                           tap->dotted_name,
 870                                           tap->enabled ? 'Y' : 'n',
 871                                           tap->idcode,
 872                                           (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
 873                                           tap->ir_length,
 874                                           expected,
 875                                           expected_mask,
 876                                           cur_instr);
 877
 878                 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
 879                         command_print(cmd_ctx, "   |                    |         |            | 0x%08x |      |      |      |         ",
 880                                                   tap->expected_ids[ii]);
 881                 }
 882
 883                 tap = tap->next_tap;
 884         }
 885
 886         return ERROR_OK;
 887 }
 888
 889 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 890 {
 891         int new_cfg = 0;
 892         int mask = 0;
 893
 894         if (argc < 1)
 895                 return ERROR_COMMAND_SYNTAX_ERROR;
 896
 897         /* Original versions cared about the order of these tokens:
 898          *   reset_config signals [combination [trst_type [srst_type]]]
 899          * They also clobbered the previous configuration even on error.
 900          *
 901          * Here we don't care about the order, and only change values
 902          * which have been explicitly specified.
 903          */
 904         for (; argc; argc--, args++) {
 905                 int tmp = 0;
 906                 int m;
 907
 908                 /* signals */
 909                 m = RESET_HAS_TRST | RESET_HAS_SRST;
 910                 if (strcmp(*args, "none") == 0)
 911                         tmp = RESET_NONE;
 912                 else if (strcmp(*args, "trst_only") == 0)
 913                         tmp = RESET_HAS_TRST;
 914                 else if (strcmp(*args, "srst_only") == 0)
 915                         tmp = RESET_HAS_SRST;
 916                 else if (strcmp(*args, "trst_and_srst") == 0)
 917                         tmp = RESET_HAS_TRST | RESET_HAS_SRST;
 918                 else
 919                         m = 0;
 920                 if (mask & m) {
 921                         LOG_ERROR("extra reset_config %s spec (%s)",
 922                                         "signal", *args);
 923                         return ERROR_INVALID_ARGUMENTS;
 924                 }
 925                 if (m)
 926                         goto next;
 927
 928                 /* combination (options for broken wiring) */
 929                 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 930                 if (strcmp(*args, "separate") == 0)
 931                         /* separate reset lines - default */;
 932                 else if (strcmp(*args, "srst_pulls_trst") == 0)
 933                         tmp |= RESET_SRST_PULLS_TRST;
 934                 else if (strcmp(*args, "trst_pulls_srst") == 0)
 935                         tmp |= RESET_TRST_PULLS_SRST;
 936                 else if (strcmp(*args, "combined") == 0)
 937                         tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 938                 else
 939                         m = 0;
 940                 if (mask & m) {
 941                         LOG_ERROR("extra reset_config %s spec (%s)",
 942                                         "combination", *args);
 943                         return ERROR_INVALID_ARGUMENTS;
 944                 }
 945                 if (m)
 946                         goto next;
 947
 948                 /* trst_type (NOP without HAS_TRST) */
 949                 m = RESET_TRST_OPEN_DRAIN;
 950                 if (strcmp(*args, "trst_open_drain") == 0)
 951                         tmp |= RESET_TRST_OPEN_DRAIN;
 952                 else if (strcmp(*args, "trst_push_pull") == 0)
 953                         /* push/pull from adapter - default */;
 954                 else
 955                         m = 0;
 956                 if (mask & m) {
 957                         LOG_ERROR("extra reset_config %s spec (%s)",
 958                                         "trst_type", *args);
 959                         return ERROR_INVALID_ARGUMENTS;
 960                 }
 961                 if (m)
 962                         goto next;
 963
 964                 /* srst_type (NOP without HAS_SRST) */
 965                 m |= RESET_SRST_PUSH_PULL;
 966                 if (strcmp(*args, "srst_push_pull") == 0)
 967                         tmp |= RESET_SRST_PUSH_PULL;
 968                 else if (strcmp(*args, "srst_open_drain") == 0)
 969                         /* open drain from adapter - default */;
 970                 else
 971                         m = 0;
 972                 if (mask & m) {
 973                         LOG_ERROR("extra reset_config %s spec (%s)",
 974                                         "srst_type", *args);
 975                         return ERROR_INVALID_ARGUMENTS;
 976                 }
 977                 if (m)
 978                         goto next;
 979
 980                 /* caller provided nonsense; fail */
 981                 LOG_ERROR("unknown reset_config flag (%s)", *args);
 982                 return ERROR_INVALID_ARGUMENTS;
 983
 984 next:
 985                 /* Remember the bits which were specified (mask)
 986                  * and their new values (new_cfg).
 987                  */
 988                 mask |= m;
 989                 new_cfg |= tmp;
 990         }
 991
 992         /* clear previous values of those bits, save new values */
 993         enum reset_types old_cfg = jtag_get_reset_config();
 994         old_cfg &= ~mask;
 995         new_cfg |= old_cfg;
 996         jtag_set_reset_config(new_cfg);
 997
 998         return ERROR_OK;
 999 }
1000
1001 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx,
1002                 char *cmd, char **args, int argc)
1003 {
1004         if (argc > 1)
1005                 return ERROR_COMMAND_SYNTAX_ERROR;
1006         if (argc == 1)
1007         {
1008                 unsigned delay;
1009                 int retval = parse_uint(args[0], &delay);
1010                 if (ERROR_OK != retval)
1011                         return retval;
1012                 jtag_set_nsrst_delay(delay);
1013         }
1014         command_print(cmd_ctx, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
1015         return ERROR_OK;
1016 }
1017
1018 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx,
1019                 char *cmd, char **args, int argc)
1020 {
1021         if (argc > 1)
1022                 return ERROR_COMMAND_SYNTAX_ERROR;
1023         if (argc == 1)
1024         {
1025                 unsigned delay;
1026                 int retval = parse_uint(args[0], &delay);
1027                 if (ERROR_OK != retval)
1028                         return retval;
1029                 jtag_set_ntrst_delay(delay);
1030         }
1031         command_print(cmd_ctx, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
1032         return ERROR_OK;
1033 }
1034
1035 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1036 {
1037         int retval = ERROR_OK;
1038
1039         if (argc > 1)
1040                 return ERROR_COMMAND_SYNTAX_ERROR;
1041         if (argc == 1)
1042         {
1043                 LOG_DEBUG("handle jtag speed");
1044
1045                 unsigned cur_speed = 0;
1046                 int retval = parse_uint(args[0], &cur_speed);
1047                 if (ERROR_OK != retval)
1048                         return retval;
1049                 retval = jtag_set_speed(cur_speed);
1050
1051         }
1052         command_print(cmd_ctx, "jtag_speed: %d", jtag_get_speed());
1053
1054         return retval;
1055 }
1056
1057 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1058 {
1059         if (argc > 1)
1060                 return ERROR_COMMAND_SYNTAX_ERROR;
1061
1062         int retval = ERROR_OK;
1063         if (argc == 1)
1064         {
1065                 unsigned khz = 0;
1066                 int retval = parse_uint(args[0], &khz);
1067                 if (ERROR_OK != retval)
1068                         return retval;
1069                 retval = jtag_config_khz(khz);
1070                 if (ERROR_OK != retval)
1071                         return retval;
1072         }
1073
1074         int cur_speed = jtag_get_speed_khz();
1075         retval = jtag_get_speed_readable(&cur_speed);
1076         if (ERROR_OK != retval)
1077                 return retval;
1078
1079         if (cur_speed)
1080                 command_print(cmd_ctx, "%d kHz", cur_speed);
1081         else
1082                 command_print(cmd_ctx, "RCLK - adaptive");
1083
1084         return retval;
1085 }
1086
1087 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx,
1088                 char *cmd, char **args, int argc)
1089 {
1090         if (argc != 2)
1091                 return ERROR_COMMAND_SYNTAX_ERROR;
1092
1093         int trst = -1;
1094         if (args[0][0] == '1')
1095                 trst = 1;
1096         else if (args[0][0] == '0')
1097                 trst = 0;
1098         else
1099                 return ERROR_COMMAND_SYNTAX_ERROR;
1100
1101         int srst = -1;
1102         if (args[1][0] == '1')
1103                 srst = 1;
1104         else if (args[1][0] == '0')
1105                 srst = 0;
1106         else
1107                 return ERROR_COMMAND_SYNTAX_ERROR;
1108
1109         if (jtag_interface_init(cmd_ctx) != ERROR_OK)
1110                 return ERROR_JTAG_INIT_FAILED;
1111
1112         jtag_add_reset(trst, srst);
1113         jtag_execute_queue();
1114
1115         return ERROR_OK;
1116 }
1117
1118 static int handle_runtest_command(struct command_context_s *cmd_ctx,
1119                 char *cmd, char **args, int argc)
1120 {
1121         if (argc != 1)
1122                 return ERROR_COMMAND_SYNTAX_ERROR;
1123
1124         unsigned num_clocks;
1125         int retval = parse_uint(args[0], &num_clocks);
1126         if (ERROR_OK != retval)
1127                 return retval;
1128
1129         jtag_add_runtest(num_clocks, jtag_get_end_state());
1130         jtag_execute_queue();
1131
1132         return ERROR_OK;
1133 }
1134
1135 /*
1136  * For "irscan" or "drscan" commands, the "end" (really, "next") state
1137  * should be stable ... and *NOT* a shift state, otherwise free-running
1138  * jtag clocks could change the values latched by the update state.
1139  */
1140 static bool scan_is_safe(tap_state_t state)
1141 {
1142         switch (state)
1143         {
1144         case TAP_RESET:
1145         case TAP_IDLE:
1146         case TAP_DRPAUSE:
1147         case TAP_IRPAUSE:
1148                 return true;
1149         default:
1150                 return false;
1151         }
1152 }
1153
1154
1155 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1156 {
1157         int i;
1158         scan_field_t *fields;
1159         jtag_tap_t *tap;
1160         tap_state_t endstate;
1161
1162         if ((argc < 2) || (argc % 2))
1163         {
1164                 return ERROR_COMMAND_SYNTAX_ERROR;
1165         }
1166
1167         /* optional "-endstate" "statename" at the end of the arguments,
1168          * so that e.g. IRPAUSE can let us load the data register before
1169          * entering RUN/IDLE to execute the instruction we load here.
1170          */
1171         endstate = TAP_IDLE;
1172
1173         if( argc >= 4 ){
1174                 /* have at least one pair of numbers. */
1175                 /* is last pair the magic text? */
1176                 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
1177                         const char *cpA;
1178                         const char *cpS;
1179                         cpA = args[ argc-1 ];
1180                         for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
1181                                 cpS = tap_state_name( endstate );
1182                                 if( 0 == strcmp( cpA, cpS ) ){
1183                                         break;
1184                                 }
1185                         }
1186                         if( endstate >= TAP_NUM_STATES ){
1187                                 return ERROR_COMMAND_SYNTAX_ERROR;
1188                         } else {
1189                                 if (!scan_is_safe(endstate))
1190                                         LOG_WARNING("irscan with unsafe "
1191                                                         "endstate \"%s\"", cpA);
1192                                 /* found - remove the last 2 args */
1193                                 argc -= 2;
1194                         }
1195                 }
1196         }
1197
1198         int num_fields = argc / 2;
1199         size_t fields_len = sizeof(scan_field_t) * num_fields;
1200         fields = malloc(fields_len);
1201         memset(fields, 0, fields_len);
1202
1203         int retval;
1204         for (i = 0; i < num_fields; i++)
1205         {
1206                 tap = jtag_tap_by_string( args[i*2] );
1207                 if (tap==NULL)
1208                 {
1209                         command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
1210                         return ERROR_FAIL;
1211                 }
1212                 int field_size = tap->ir_length;
1213                 fields[i].tap = tap;
1214                 fields[i].num_bits = field_size;
1215                 fields[i].out_value = malloc(CEIL(field_size, 8));
1216
1217                 u32 value;
1218                 retval = parse_u32(args[i * 2 + 1], &value);
1219                 if (ERROR_OK != retval)
1220                         goto error_return;
1221                 buf_set_u32(fields[i].out_value, 0, field_size, value);
1222                 fields[i].in_value = NULL;
1223         }
1224
1225         /* did we have an endstate? */
1226         jtag_add_ir_scan(num_fields, fields, endstate);
1227
1228         retval = jtag_execute_queue();
1229
1230 error_return:
1231         for (i = 0; i < num_fields; i++)
1232         {
1233                 if (NULL != fields[i].out_value)
1234                         free(fields[i].out_value);
1235         }
1236
1237         free (fields);
1238
1239         return retval;
1240 }
1241
1242 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1243 {
1244         int retval;
1245         scan_field_t *fields;
1246         int num_fields;
1247         int field_count = 0;
1248         int i, e;
1249         jtag_tap_t *tap;
1250         tap_state_t endstate;
1251
1252         /* args[1] = device
1253          * args[2] = num_bits
1254          * args[3] = hex string
1255          * ... repeat num bits and hex string ...
1256          *
1257          * .. optionally:
1258         *     args[N-2] = "-endstate"
1259          *     args[N-1] = statename
1260          */
1261         if ((argc < 4) || ((argc % 2)!=0))
1262         {
1263                 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
1264                 return JIM_ERR;
1265         }
1266
1267         endstate = TAP_IDLE;
1268
1269         script_debug(interp, "drscan", argc, args);
1270
1271         /* validate arguments as numbers */
1272         e = JIM_OK;
1273         for (i = 2; i < argc; i+=2)
1274         {
1275                 long bits;
1276                 const char *cp;
1277
1278                 e = Jim_GetLong(interp, args[i], &bits);
1279                 /* If valid - try next arg */
1280                 if( e == JIM_OK ){
1281                         continue;
1282                 }
1283
1284                 /* Not valid.. are we at the end? */
1285                 if ( ((i+2) != argc) ){
1286                         /* nope, then error */
1287                         return e;
1288                 }
1289
1290                 /* it could be: "-endstate FOO"
1291                  * e.g. DRPAUSE so we can issue more instructions
1292                  * before entering RUN/IDLE and executing them.
1293                  */
1294
1295                 /* get arg as a string. */
1296                 cp = Jim_GetString( args[i], NULL );
1297                 /* is it the magic? */
1298                 if( 0 == strcmp( "-endstate", cp ) ){
1299                         /* is the statename valid? */
1300                         cp = Jim_GetString( args[i+1], NULL );
1301
1302                         /* see if it is a valid state name */
1303                         endstate = tap_state_by_name(cp);
1304                         if( endstate < 0 ){
1305                                 /* update the error message */
1306                                 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
1307                         } else {
1308                                 if (!scan_is_safe(endstate))
1309                                         LOG_WARNING("drscan with unsafe "
1310                                                         "endstate \"%s\"", cp);
1311
1312                                 /* valid - so clear the error */
1313                                 e = JIM_OK;
1314                                 /* and remove the last 2 args */
1315                                 argc -= 2;
1316                         }
1317                 }
1318
1319                 /* Still an error? */
1320                 if( e != JIM_OK ){
1321                         return e; /* too bad */
1322                 }
1323         } /* validate args */
1324
1325         tap = jtag_tap_by_jim_obj( interp, args[1] );
1326         if( tap == NULL ){
1327                 return JIM_ERR;
1328         }
1329
1330         num_fields=(argc-2)/2;
1331         fields = malloc(sizeof(scan_field_t) * num_fields);
1332         for (i = 2; i < argc; i+=2)
1333         {
1334                 long bits;
1335                 int len;
1336                 const char *str;
1337
1338                 Jim_GetLong(interp, args[i], &bits);
1339                 str = Jim_GetString(args[i+1], &len);
1340
1341                 fields[field_count].tap = tap;
1342                 fields[field_count].num_bits = bits;
1343                 fields[field_count].out_value = malloc(CEIL(bits, 8));
1344                 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
1345                 fields[field_count].in_value = fields[field_count].out_value;
1346                 field_count++;
1347         }
1348
1349         jtag_add_dr_scan(num_fields, fields, endstate);
1350
1351         retval = jtag_execute_queue();
1352         if (retval != ERROR_OK)
1353         {
1354                 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
1355                 return JIM_ERR;
1356         }
1357
1358         field_count=0;
1359         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
1360         for (i = 2; i < argc; i+=2)
1361         {
1362                 long bits;
1363                 char *str;
1364
1365                 Jim_GetLong(interp, args[i], &bits);
1366                 str = buf_to_str(fields[field_count].in_value, bits, 16);
1367                 free(fields[field_count].out_value);
1368
1369                 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
1370                 free(str);
1371                 field_count++;
1372         }
1373
1374         Jim_SetResult(interp, list);
1375
1376         free(fields);
1377
1378         return JIM_OK;
1379 }
1380
1381
1382 static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1383 {
1384         tap_state_t states[8];
1385
1386         if ((argc < 2) || ((size_t)argc > (sizeof(states)/sizeof(*states)+1)))
1387         {
1388                 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
1389                 return JIM_ERR;
1390         }
1391
1392         script_debug(interp, "pathmove", argc, args);
1393
1394         int i;
1395         for (i=0; i<argc-1; i++)
1396         {
1397                 const char *cp;
1398                 cp = Jim_GetString( args[i+1], NULL );
1399                 states[i] = tap_state_by_name(cp);
1400                 if( states[i] < 0 )
1401                 {
1402                         /* update the error message */
1403                         Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
1404                         return JIM_ERR;
1405                 }
1406         }
1407
1408         if ((jtag_add_statemove(states[0]) != ERROR_OK) || ( jtag_execute_queue()!= ERROR_OK))
1409         {
1410                 Jim_SetResultString(interp, "pathmove: jtag execute failed",-1);
1411                 return JIM_ERR;
1412         }
1413
1414         jtag_add_pathmove(argc-2, states+1);
1415
1416         if (jtag_execute_queue()!= ERROR_OK)
1417         {
1418                 Jim_SetResultString(interp, "pathmove: failed",-1);
1419                 return JIM_ERR;
1420         }
1421
1422         return JIM_OK;
1423 }
1424
1425
1426 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1427 {
1428         script_debug(interp, "flush_count", argc, args);
1429
1430         Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
1431
1432         return JIM_OK;
1433 }
1434
1435
1436 static int handle_verify_ircapture_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_capture_ir(true);
1445                 else if (strcmp(args[0], "disable") == 0)
1446                         jtag_set_verify_capture_ir(false);
1447                 else
1448                         return ERROR_COMMAND_SYNTAX_ERROR;
1449         }
1450
1451         const char *status = jtag_will_verify_capture_ir() ? "enabled": "disabled";
1452         command_print(cmd_ctx, "verify Capture-IR is %s", status);
1453
1454         return ERROR_OK;
1455 }
1456
1457 static int handle_verify_jtag_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                 if (strcmp(args[0], "enable") == 0)
1465                         jtag_set_verify(true);
1466                 else if (strcmp(args[0], "disable") == 0)
1467                         jtag_set_verify(false);
1468                 else
1469                         return ERROR_COMMAND_SYNTAX_ERROR;
1470         }
1471
1472         const char *status = jtag_will_verify() ? "enabled": "disabled";
1473         command_print(cmd_ctx, "verify jtag capture is %s", status);
1474
1475         return ERROR_OK;
1476 }
1477
1478 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1479 {
1480         if (argc > 1)
1481                 return ERROR_COMMAND_SYNTAX_ERROR;
1482
1483         if (argc == 1)
1484         {
1485                 bool use_new_table;
1486                 if (strcmp(args[0], "short") == 0)
1487                         use_new_table = true;
1488                 else if (strcmp(args[0], "long") == 0)
1489                         use_new_table = false;
1490                 else
1491                         return ERROR_COMMAND_SYNTAX_ERROR;
1492
1493                 tap_use_new_tms_table(use_new_table);
1494         }
1495
1496         command_print(cmd_ctx, "tms sequence is  %s",
1497                         tap_uses_new_tms_table() ? "short": "long");
1498
1499         return ERROR_OK;
1500 }
1501