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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 struct jtag_interface_s *jtag;
 174 extern jtag_interface_t *jtag_interface;
 175
 176 /* jtag commands */
 177 static int handle_interface_list_command(struct command_context_s *cmd_ctx,
 178                 char *cmd, char **args, int argc);
 179 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 180 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 181 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 182 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 183 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 184 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 185 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 186
 187 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 188
 189 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 190 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 191 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 192 static int Jim_Command_drscan(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
 300 extern void jtag_tap_init(jtag_tap_t *tap);
 301 extern void jtag_tap_free(jtag_tap_t *tap);
 302
 303 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
 304 {
 305         jtag_tap_t *pTap;
 306         jim_wide w;
 307         int x;
 308         int e;
 309         int reqbits;
 310         Jim_Nvp *n;
 311         char *cp;
 312         const Jim_Nvp opts[] = {
 313 #define NTAP_OPT_IRLEN     0
 314                 { .name = "-irlen"                      ,       .value = NTAP_OPT_IRLEN },
 315 #define NTAP_OPT_IRMASK    1
 316                 { .name = "-irmask"                     ,       .value = NTAP_OPT_IRMASK },
 317 #define NTAP_OPT_IRCAPTURE 2
 318                 { .name = "-ircapture"          ,       .value = NTAP_OPT_IRCAPTURE },
 319 #define NTAP_OPT_ENABLED   3
 320                 { .name = "-enable"                     ,       .value = NTAP_OPT_ENABLED },
 321 #define NTAP_OPT_DISABLED  4
 322                 { .name = "-disable"            ,       .value = NTAP_OPT_DISABLED },
 323 #define NTAP_OPT_EXPECTED_ID 5
 324                 { .name = "-expected-id"        ,       .value = NTAP_OPT_EXPECTED_ID },
 325                 { .name = NULL                          ,       .value = -1 },
 326         };
 327
 328         pTap = malloc( sizeof(jtag_tap_t) );
 329         memset( pTap, 0, sizeof(*pTap) );
 330         if( !pTap ){
 331                 Jim_SetResult_sprintf( goi->interp, "no memory");
 332                 return JIM_ERR;
 333         }
 334         /*
 335          * we expect CHIP + TAP + OPTIONS
 336          * */
 337         if( goi->argc < 3 ){
 338                 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
 339                 return JIM_ERR;
 340         }
 341         Jim_GetOpt_String( goi, &cp, NULL );
 342         pTap->chip = strdup(cp);
 343
 344         Jim_GetOpt_String( goi, &cp, NULL );
 345         pTap->tapname = strdup(cp);
 346
 347         /* name + dot + name + null */
 348         x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
 349         cp = malloc( x );
 350         sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
 351         pTap->dotted_name = cp;
 352
 353         LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
 354                           pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
 355
 356         /* default is enabled */
 357         pTap->enabled = 1;
 358
 359         /* deal with options */
 360 #define NTREQ_IRLEN      1
 361 #define NTREQ_IRCAPTURE  2
 362 #define NTREQ_IRMASK     4
 363
 364         /* clear them as we find them */
 365         reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
 366
 367         while( goi->argc ){
 368                 e = Jim_GetOpt_Nvp( goi, opts, &n );
 369                 if( e != JIM_OK ){
 370                         Jim_GetOpt_NvpUnknown( goi, opts, 0 );
 371                         return e;
 372                 }
 373                 LOG_DEBUG("Processing option: %s", n->name );
 374                 switch( n->value ){
 375                 case NTAP_OPT_ENABLED:
 376                         pTap->enabled = 1;
 377                         break;
 378                 case NTAP_OPT_DISABLED:
 379                         pTap->enabled = 0;
 380                         break;
 381                 case NTAP_OPT_EXPECTED_ID:
 382                 {
 383                         u32 *new_expected_ids;
 384
 385                         e = Jim_GetOpt_Wide( goi, &w );
 386                         if( e != JIM_OK) {
 387                                 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
 388                                 return e;
 389                         }
 390
 391                         new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
 392                         if (new_expected_ids == NULL) {
 393                                 Jim_SetResult_sprintf( goi->interp, "no memory");
 394                                 return JIM_ERR;
 395                         }
 396
 397                         memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
 398
 399                         new_expected_ids[pTap->expected_ids_cnt] = w;
 400
 401                         free(pTap->expected_ids);
 402                         pTap->expected_ids = new_expected_ids;
 403                         pTap->expected_ids_cnt++;
 404                         break;
 405                 }
 406                 case NTAP_OPT_IRLEN:
 407                 case NTAP_OPT_IRMASK:
 408                 case NTAP_OPT_IRCAPTURE:
 409                         e = Jim_GetOpt_Wide( goi, &w );
 410                         if( e != JIM_OK ){
 411                                 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
 412                                 return e;
 413                         }
 414                         if( (w < 0) || (w > 0xffff) ){
 415                                 /* wacky value */
 416                                 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
 417                                                                            n->name, (int)(w), (int)(w));
 418                                 return JIM_ERR;
 419                         }
 420                         switch(n->value){
 421                         case NTAP_OPT_IRLEN:
 422                                 pTap->ir_length = w;
 423                                 reqbits &= (~(NTREQ_IRLEN));
 424                                 break;
 425                         case NTAP_OPT_IRMASK:
 426                                 pTap->ir_capture_mask = w;
 427                                 reqbits &= (~(NTREQ_IRMASK));
 428                                 break;
 429                         case NTAP_OPT_IRCAPTURE:
 430                                 pTap->ir_capture_value = w;
 431                                 reqbits &= (~(NTREQ_IRCAPTURE));
 432                                 break;
 433                         }
 434                 } /* switch(n->value) */
 435         } /* while( goi->argc ) */
 436
 437         /* Did all the required option bits get cleared? */
 438         if (0 == reqbits)
 439         {
 440                 jtag_tap_init(pTap);
 441                 return ERROR_OK;
 442         }
 443
 444         Jim_SetResult_sprintf(goi->interp,
 445                         "newtap: %s missing required parameters",
 446                         pTap->dotted_name);
 447         jtag_tap_free(pTap);
 448         return JIM_ERR;
 449 }
 450
 451 static void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
 452 {
 453         jtag_tap_event_action_t * jteap;
 454         int done;
 455
 456         jteap = tap->event_action;
 457
 458         done = 0;
 459         while (jteap) {
 460                 if (jteap->event == e) {
 461                         done = 1;
 462                         LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
 463                                         tap->dotted_name,
 464                                         e,
 465                                         Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
 466                                         Jim_GetString(jteap->body, NULL) );
 467                         if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
 468                                 Jim_PrintErrorMessage(interp);
 469                         }
 470                 }
 471
 472                 jteap = jteap->next;
 473         }
 474
 475         if (!done) {
 476                 LOG_DEBUG( "event %d %s - no action",
 477                                 e,
 478                                 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
 479         }
 480 }
 481
 482
 483 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
 484 {
 485         Jim_GetOptInfo goi;
 486         int e;
 487         Jim_Nvp *n;
 488         Jim_Obj *o;
 489         struct command_context_s *context;
 490
 491         enum {
 492                 JTAG_CMD_INTERFACE,
 493                 JTAG_CMD_INIT_RESET,
 494                 JTAG_CMD_NEWTAP,
 495                 JTAG_CMD_TAPENABLE,
 496                 JTAG_CMD_TAPDISABLE,
 497                 JTAG_CMD_TAPISENABLED,
 498                 JTAG_CMD_CONFIGURE,
 499                 JTAG_CMD_CGET
 500         };
 501
 502         const Jim_Nvp jtag_cmds[] = {
 503                 { .name = "interface"     , .value = JTAG_CMD_INTERFACE },
 504                 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
 505                 { .name = "newtap"        , .value = JTAG_CMD_NEWTAP },
 506                 { .name = "tapisenabled"     , .value = JTAG_CMD_TAPISENABLED },
 507                 { .name = "tapenable"     , .value = JTAG_CMD_TAPENABLE },
 508                 { .name = "tapdisable"    , .value = JTAG_CMD_TAPDISABLE },
 509                 { .name = "configure"     , .value = JTAG_CMD_CONFIGURE },
 510                 { .name = "cget"          , .value = JTAG_CMD_CGET },
 511
 512                 { .name = NULL, .value = -1 },
 513         };
 514
 515         context = Jim_GetAssocData(interp, "context");
 516         /* go past the command */
 517         Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
 518
 519         e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
 520         if( e != JIM_OK ){
 521                 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
 522                 return e;
 523         }
 524                 Jim_SetEmptyResult( goi.interp );
 525         switch( n->value ){
 526         case JTAG_CMD_INTERFACE:
 527                 /* return the name of the interface */
 528                 /* TCL code might need to know the exact type... */
 529                 /* FUTURE: we allow this as a means to "set" the interface. */
 530                 if( goi.argc != 0 ){
 531                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 532                         return JIM_ERR;
 533                 }
 534                 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
 535                 return JIM_OK;
 536         case JTAG_CMD_INIT_RESET:
 537                 if( goi.argc != 0 ){
 538                         Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
 539                         return JIM_ERR;
 540                 }
 541                 e = jtag_init_reset(context);
 542                 if( e != ERROR_OK ){
 543                         Jim_SetResult_sprintf( goi.interp, "error: %d", e);
 544                         return JIM_ERR;
 545                 }
 546                 return JIM_OK;
 547         case JTAG_CMD_NEWTAP:
 548                 return jim_newtap_cmd( &goi );
 549                 break;
 550         case JTAG_CMD_TAPISENABLED:
 551         case JTAG_CMD_TAPENABLE:
 552         case JTAG_CMD_TAPDISABLE:
 553                 if( goi.argc != 1 ){
 554                         Jim_SetResultString( goi.interp, "Too many parameters",-1 );
 555                         return JIM_ERR;
 556                 }
 557
 558                 {
 559                         jtag_tap_t *t;
 560                         t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
 561                         if( t == NULL ){
 562                                 return JIM_ERR;
 563                         }
 564                         switch( n->value ){
 565                         case JTAG_CMD_TAPISENABLED:
 566                                 e = t->enabled;
 567                                 break;
 568                         case JTAG_CMD_TAPENABLE:
 569                                 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
 570                                 e = 1;
 571                                 t->enabled = e;
 572                                 break;
 573                         case JTAG_CMD_TAPDISABLE:
 574                                 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
 575                                 e = 0;
 576                                 t->enabled = e;
 577                                 break;
 578                         }
 579                         Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
 580                         return JIM_OK;
 581                 }
 582                 break;
 583
 584         case JTAG_CMD_CGET:
 585                 if( goi.argc < 2 ){
 586                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
 587                         return JIM_ERR;
 588                 }
 589
 590                 {
 591                         jtag_tap_t *t;
 592
 593                         Jim_GetOpt_Obj(&goi, &o);
 594                         t = jtag_tap_by_jim_obj( goi.interp, o );
 595                         if( t == NULL ){
 596                                 return JIM_ERR;
 597                         }
 598
 599                         goi.isconfigure = 0;
 600                         return jtag_tap_configure_cmd( &goi, t);
 601                 }
 602                 break;
 603
 604         case JTAG_CMD_CONFIGURE:
 605                 if( goi.argc < 3 ){
 606                         Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
 607                         return JIM_ERR;
 608                 }
 609
 610                 {
 611                         jtag_tap_t *t;
 612
 613                         Jim_GetOpt_Obj(&goi, &o);
 614                         t = jtag_tap_by_jim_obj( goi.interp, o );
 615                         if( t == NULL ){
 616                                 return JIM_ERR;
 617                         }
 618
 619                         goi.isconfigure = 1;
 620                         return jtag_tap_configure_cmd( &goi, t);
 621                 }
 622         }
 623
 624         return JIM_ERR;
 625 }
 626
 627 int jtag_register_commands(struct command_context_s *cmd_ctx)
 628 {
 629         register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
 630
 631         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
 632                 COMMAND_CONFIG, "try to configure interface");
 633         register_command(cmd_ctx, NULL,
 634                 "interface_list", &handle_interface_list_command,
 635                 COMMAND_ANY, "list all built-in interfaces");
 636         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
 637                 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
 638         register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
 639                 COMMAND_ANY, "set maximum jtag speed (if supported); "
 640                 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
 641         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
 642                 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
 643         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
 644                 COMMAND_ANY,
 645                 "[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]");
 646         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
 647                 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
 648         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
 649                 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
 650
 651         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
 652                 COMMAND_EXEC, "print current scan chain configuration");
 653
 654         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
 655                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
 656         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
 657                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
 658         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
 659                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
 660         register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
 661         register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
 662
 663         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
 664                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
 665         register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
 666                 COMMAND_ANY, "verify value capture <enable|disable>");
 667         register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
 668                 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
 669         return ERROR_OK;
 670 }
 671
 672 static int default_khz(int khz, int *jtag_speed)
 673 {
 674         LOG_ERROR("Translation from khz to jtag_speed not implemented");
 675         return ERROR_FAIL;
 676 }
 677
 678 static int default_speed_div(int speed, int *khz)
 679 {
 680         LOG_ERROR("Translation from jtag_speed to khz not implemented");
 681         return ERROR_FAIL;
 682 }
 683
 684 static int default_power_dropout(int *dropout)
 685 {
 686         *dropout=0; /* by default we can't detect power dropout */
 687         return ERROR_OK;
 688 }
 689
 690 static int default_srst_asserted(int *srst_asserted)
 691 {
 692         *srst_asserted=0; /* by default we can't detect srst asserted */
 693         return ERROR_OK;
 694 }
 695
 696 static int handle_interface_command(struct command_context_s *cmd_ctx,
 697                 char *cmd, char **args, int argc)
 698 {
 699         /* check whether the interface is already configured */
 700         if (jtag_interface)
 701         {
 702                 LOG_WARNING("Interface already configured, ignoring");
 703                 return ERROR_OK;
 704         }
 705
 706         /* interface name is a mandatory argument */
 707         if (argc != 1 || args[0][0] == '\0')
 708                 return ERROR_COMMAND_SYNTAX_ERROR;
 709
 710         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 711         {
 712                 if (strcmp(args[0], jtag_interfaces[i]->name) != 0)
 713                         continue;
 714
 715                 int retval = jtag_interfaces[i]->register_commands(cmd_ctx);
 716                 if (ERROR_OK != retval)
 717                                 return retval;
 718
 719                 jtag_interface = jtag_interfaces[i];
 720
 721                 if (jtag_interface->khz == NULL)
 722                         jtag_interface->khz = default_khz;
 723                 if (jtag_interface->speed_div == NULL)
 724                         jtag_interface->speed_div = default_speed_div;
 725                 if (jtag_interface->power_dropout == NULL)
 726                         jtag_interface->power_dropout = default_power_dropout;
 727                 if (jtag_interface->srst_asserted == NULL)
 728                         jtag_interface->srst_asserted = default_srst_asserted;
 729
 730                 return ERROR_OK;
 731         }
 732
 733         /* no valid interface was found (i.e. the configuration option,
 734          * didn't match one of the compiled-in interfaces
 735          */
 736         LOG_ERROR("The specified JTAG interface was not found (%s)", args[0]);
 737         handle_interface_list_command(cmd_ctx, cmd, args, argc);
 738         return ERROR_JTAG_INVALID_INTERFACE;
 739 }
 740
 741 static int handle_interface_list_command(struct command_context_s *cmd_ctx,
 742                 char *cmd, char **args, int argc)
 743 {
 744         if (strcmp(cmd, "interface_list") == 0 && argc > 0)
 745                 return ERROR_COMMAND_SYNTAX_ERROR;
 746
 747         command_print(cmd_ctx, "The following JTAG interfaces are available:");
 748         for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
 749         {
 750                 const char *name = jtag_interfaces[i]->name;
 751                 command_print(cmd_ctx, "%u: %s", i + 1, name);
 752         }
 753
 754         return ERROR_OK;
 755 }
 756
 757 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 758 {
 759         int e;
 760         char buf[1024];
 761         Jim_Obj *newargs[ 10 ];
 762         /*
 763          * CONVERT SYNTAX
 764          * argv[-1] = command
 765          * argv[ 0] = ir length
 766          * argv[ 1] = ir capture
 767          * argv[ 2] = ir mask
 768          * argv[ 3] = not actually used by anything but in the docs
 769          */
 770
 771         if( argc < 4 ){
 772                 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
 773                 return ERROR_OK;
 774         }
 775         command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
 776         command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
 777                                    args[0],
 778                                    args[1],
 779                                    args[2] );
 780         command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
 781         command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
 782         command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
 783         command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
 784
 785         newargs[0] = Jim_NewStringObj( interp, "jtag", -1   );
 786         newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
 787         sprintf( buf, "chip%d", jtag_tap_count() );
 788         newargs[2] = Jim_NewStringObj( interp, buf, -1 );
 789         sprintf( buf, "tap%d", jtag_tap_count() );
 790         newargs[3] = Jim_NewStringObj( interp, buf, -1  );
 791         newargs[4] = Jim_NewStringObj( interp, "-irlen", -1  );
 792         newargs[5] = Jim_NewStringObj( interp, args[0], -1  );
 793         newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1  );
 794         newargs[7] = Jim_NewStringObj( interp, args[1], -1  );
 795         newargs[8] = Jim_NewStringObj( interp, "-irmask", -1  );
 796         newargs[9] = Jim_NewStringObj( interp, args[2], -1  );
 797
 798         command_print( cmd_ctx, "NEW COMMAND:");
 799         sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
 800                          Jim_GetString( newargs[0], NULL ),
 801                          Jim_GetString( newargs[1], NULL ),
 802                          Jim_GetString( newargs[2], NULL ),
 803                          Jim_GetString( newargs[3], NULL ),
 804                          Jim_GetString( newargs[4], NULL ),
 805                          Jim_GetString( newargs[5], NULL ),
 806                          Jim_GetString( newargs[6], NULL ),
 807                          Jim_GetString( newargs[7], NULL ),
 808                          Jim_GetString( newargs[8], NULL ),
 809                          Jim_GetString( newargs[9], NULL ) );
 810
 811         e = jim_jtag_command( interp, 10, newargs );
 812         if( e != JIM_OK ){
 813                 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
 814         }
 815         return e;
 816 }
 817
 818 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 819 {
 820         jtag_tap_t *tap;
 821
 822         tap = jtag_all_taps();
 823         command_print(cmd_ctx, "     TapName            | Enabled |   IdCode      Expected    IrLen IrCap  IrMask Instr     ");
 824         command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
 825
 826         while( tap ){
 827                 u32 expected, expected_mask, cur_instr, ii;
 828                 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
 829                 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
 830                 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
 831
 832                 command_print(cmd_ctx,
 833                                           "%2d | %-18s |    %c    | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
 834                                           tap->abs_chain_position,
 835                                           tap->dotted_name,
 836                                           tap->enabled ? 'Y' : 'n',
 837                                           tap->idcode,
 838                                           (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
 839                                           tap->ir_length,
 840                                           expected,
 841                                           expected_mask,
 842                                           cur_instr);
 843
 844                 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
 845                         command_print(cmd_ctx, "   |                    |         |            | 0x%08x |      |      |      |         ",
 846                                                   tap->expected_ids[ii]);
 847                 }
 848
 849                 tap = tap->next_tap;
 850         }
 851
 852         return ERROR_OK;
 853 }
 854
 855 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 856 {
 857         int new_cfg = 0;
 858         int mask = 0;
 859
 860         if (argc < 1)
 861                 return ERROR_COMMAND_SYNTAX_ERROR;
 862
 863         /* Original versions cared about the order of these tokens:
 864          *   reset_config signals [combination [trst_type [srst_type]]]
 865          * They also clobbered the previous configuration even on error.
 866          *
 867          * Here we don't care about the order, and only change values
 868          * which have been explicitly specified.
 869          */
 870         for (; argc; argc--, args++) {
 871                 int tmp = 0;
 872                 int m;
 873
 874                 /* signals */
 875                 m = RESET_HAS_TRST | RESET_HAS_SRST;
 876                 if (strcmp(*args, "none") == 0)
 877                         tmp = RESET_NONE;
 878                 else if (strcmp(*args, "trst_only") == 0)
 879                         tmp = RESET_HAS_TRST;
 880                 else if (strcmp(*args, "srst_only") == 0)
 881                         tmp = RESET_HAS_SRST;
 882                 else if (strcmp(*args, "trst_and_srst") == 0)
 883                         tmp = RESET_HAS_TRST | RESET_HAS_SRST;
 884                 else
 885                         m = 0;
 886                 if (mask & m) {
 887                         LOG_ERROR("extra reset_config %s spec (%s)",
 888                                         "signal", *args);
 889                         return ERROR_INVALID_ARGUMENTS;
 890                 }
 891                 if (m)
 892                         goto next;
 893
 894                 /* combination (options for broken wiring) */
 895                 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 896                 if (strcmp(*args, "separate") == 0)
 897                         /* separate reset lines - default */;
 898                 else if (strcmp(*args, "srst_pulls_trst") == 0)
 899                         tmp |= RESET_SRST_PULLS_TRST;
 900                 else if (strcmp(*args, "trst_pulls_srst") == 0)
 901                         tmp |= RESET_TRST_PULLS_SRST;
 902                 else if (strcmp(*args, "combined") == 0)
 903                         tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
 904                 else
 905                         m = 0;
 906                 if (mask & m) {
 907                         LOG_ERROR("extra reset_config %s spec (%s)",
 908                                         "combination", *args);
 909                         return ERROR_INVALID_ARGUMENTS;
 910                 }
 911                 if (m)
 912                         goto next;
 913
 914                 /* trst_type (NOP without HAS_TRST) */
 915                 m = RESET_TRST_OPEN_DRAIN;
 916                 if (strcmp(*args, "trst_open_drain") == 0)
 917                         tmp |= RESET_TRST_OPEN_DRAIN;
 918                 else if (strcmp(*args, "trst_push_pull") == 0)
 919                         /* push/pull from adapter - default */;
 920                 else
 921                         m = 0;
 922                 if (mask & m) {
 923                         LOG_ERROR("extra reset_config %s spec (%s)",
 924                                         "trst_type", *args);
 925                         return ERROR_INVALID_ARGUMENTS;
 926                 }
 927                 if (m)
 928                         goto next;
 929
 930                 /* srst_type (NOP without HAS_SRST) */
 931                 m |= RESET_SRST_PUSH_PULL;
 932                 if (strcmp(*args, "srst_push_pull") == 0)
 933                         tmp |= RESET_SRST_PUSH_PULL;
 934                 else if (strcmp(*args, "srst_open_drain") == 0)
 935                         /* open drain from adapter - default */;
 936                 else
 937                         m = 0;
 938                 if (mask & m) {
 939                         LOG_ERROR("extra reset_config %s spec (%s)",
 940                                         "srst_type", *args);
 941                         return ERROR_INVALID_ARGUMENTS;
 942                 }
 943                 if (m)
 944                         goto next;
 945
 946                 /* caller provided nonsense; fail */
 947                 LOG_ERROR("unknown reset_config flag (%s)", *args);
 948                 return ERROR_INVALID_ARGUMENTS;
 949
 950 next:
 951                 /* Remember the bits which were specified (mask)
 952                  * and their new values (new_cfg).
 953                  */
 954                 mask |= m;
 955                 new_cfg |= tmp;
 956         }
 957
 958         /* clear previous values of those bits, save new values */
 959         enum reset_types old_cfg = jtag_get_reset_config();
 960         old_cfg &= ~mask;
 961         new_cfg |= old_cfg;
 962         jtag_set_reset_config(new_cfg);
 963
 964         return ERROR_OK;
 965 }
 966
 967 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx,
 968                 char *cmd, char **args, int argc)
 969 {
 970         if (argc > 1)
 971                 return ERROR_COMMAND_SYNTAX_ERROR;
 972         if (argc == 1)
 973                 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
 974         command_print(cmd_ctx, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
 975         return ERROR_OK;
 976 }
 977
 978 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx,
 979                 char *cmd, char **args, int argc)
 980 {
 981         if (argc > 1)
 982                 return ERROR_COMMAND_SYNTAX_ERROR;
 983         if (argc == 1)
 984                 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
 985         command_print(cmd_ctx, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
 986         return ERROR_OK;
 987 }
 988
 989 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 990 {
 991         int retval = ERROR_OK;
 992
 993         if (argc > 1)
 994                 return ERROR_COMMAND_SYNTAX_ERROR;
 995         if (argc == 1)
 996         {
 997                 LOG_DEBUG("handle jtag speed");
 998
 999                 int cur_speed = 0;
1000                 cur_speed = strtoul(args[0], NULL, 0);
1001                 retval = jtag_set_speed(cur_speed);
1002
1003         }
1004         command_print(cmd_ctx, "jtag_speed: %d", jtag_get_speed());
1005
1006         return retval;
1007 }
1008
1009 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1010 {
1011         if (argc > 1)
1012                 return ERROR_COMMAND_SYNTAX_ERROR;
1013
1014         int retval = ERROR_OK;
1015         int cur_speed = 0;
1016         if (argc == 1)
1017         {
1018                 LOG_DEBUG("handle jtag khz");
1019
1020                 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
1021                 if (jtag != NULL)
1022                 {
1023                         LOG_DEBUG("have interface set up");
1024                         int speed_div1;
1025                         retval = jtag->khz(jtag_get_speed_khz(), &speed_div1);
1026                         if (ERROR_OK != retval)
1027                         {
1028                                 jtag_set_speed_khz(0);
1029                                 return retval;
1030                         }
1031                         cur_speed = speed_div1;
1032                 }
1033                 retval = jtag_set_speed(cur_speed);
1034         }
1035
1036         cur_speed = jtag_get_speed_khz();
1037         if (jtag != NULL)
1038         {
1039                 retval = jtag->speed_div(jtag_get_speed(), &cur_speed);
1040                 if (ERROR_OK != retval)
1041                         return retval;
1042         }
1043
1044         if (cur_speed)
1045                 command_print(cmd_ctx, "%d kHz", cur_speed);
1046         else
1047                 command_print(cmd_ctx, "RCLK - adaptive");
1048         return retval;
1049
1050 }
1051
1052 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx,
1053                 char *cmd, char **args, int argc)
1054 {
1055         if (argc != 2)
1056                 return ERROR_COMMAND_SYNTAX_ERROR;
1057
1058         int trst = -1;
1059         if (args[0][0] == '1')
1060                 trst = 1;
1061         else if (args[0][0] == '0')
1062                 trst = 0;
1063         else
1064                 return ERROR_COMMAND_SYNTAX_ERROR;
1065
1066         int srst = -1;
1067         if (args[1][0] == '1')
1068                 srst = 1;
1069         else if (args[1][0] == '0')
1070                 srst = 0;
1071         else
1072                 return ERROR_COMMAND_SYNTAX_ERROR;
1073
1074         if (jtag_interface_init(cmd_ctx) != ERROR_OK)
1075                 return ERROR_JTAG_INIT_FAILED;
1076
1077         jtag_add_reset(trst, srst);
1078         jtag_execute_queue();
1079
1080         return ERROR_OK;
1081 }
1082
1083 static int handle_runtest_command(struct command_context_s *cmd_ctx,
1084                 char *cmd, char **args, int argc)
1085 {
1086         if (argc != 1)
1087                 return ERROR_COMMAND_SYNTAX_ERROR;
1088
1089         jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
1090         jtag_execute_queue();
1091
1092         return ERROR_OK;
1093 }
1094
1095 /*
1096  * For "irscan" or "drscan" commands, the "end" (really, "next") state
1097  * should be stable ... and *NOT* a shift state, otherwise free-running
1098  * jtag clocks could change the values latched by the update state.
1099  */
1100 static bool scan_is_safe(tap_state_t state)
1101 {
1102         switch (state)
1103         {
1104         case TAP_RESET:
1105         case TAP_IDLE:
1106         case TAP_DRPAUSE:
1107         case TAP_IRPAUSE:
1108                 return true;
1109         default:
1110                 return false;
1111         }
1112 }
1113
1114
1115 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1116 {
1117         int i;
1118         scan_field_t *fields;
1119         jtag_tap_t *tap;
1120         tap_state_t endstate;
1121
1122         if ((argc < 2) || (argc % 2))
1123         {
1124                 return ERROR_COMMAND_SYNTAX_ERROR;
1125         }
1126
1127         /* optional "-endstate" "statename" at the end of the arguments,
1128          * so that e.g. IRPAUSE can let us load the data register before
1129          * entering RUN/IDLE to execute the instruction we load here.
1130          */
1131         endstate = TAP_IDLE;
1132
1133         if( argc >= 4 ){
1134                 /* have at least one pair of numbers. */
1135                 /* is last pair the magic text? */
1136                 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
1137                         const char *cpA;
1138                         const char *cpS;
1139                         cpA = args[ argc-1 ];
1140                         for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
1141                                 cpS = tap_state_name( endstate );
1142                                 if( 0 == strcmp( cpA, cpS ) ){
1143                                         break;
1144                                 }
1145                         }
1146                         if( endstate >= TAP_NUM_STATES ){
1147                                 return ERROR_COMMAND_SYNTAX_ERROR;
1148                         } else {
1149                                 if (!scan_is_safe(endstate))
1150                                         LOG_WARNING("irscan with unsafe "
1151                                                         "endstate \"%s\"", cpA);
1152                                 /* found - remove the last 2 args */
1153                                 argc -= 2;
1154                         }
1155                 }
1156         }
1157
1158         int num_fields = argc / 2;
1159
1160         fields = malloc(sizeof(scan_field_t) * num_fields);
1161
1162         for (i = 0; i < num_fields; i++)
1163         {
1164                 tap = jtag_tap_by_string( args[i*2] );
1165                 if (tap==NULL)
1166                 {
1167                         command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
1168                         return ERROR_FAIL;
1169                 }
1170                 int field_size = tap->ir_length;
1171                 fields[i].tap = tap;
1172                 fields[i].num_bits = field_size;
1173                 fields[i].out_value = malloc(CEIL(field_size, 8));
1174                 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1175                 fields[i].in_value = NULL;
1176         }
1177
1178         /* did we have an endstate? */
1179         jtag_add_ir_scan(num_fields, fields, endstate);
1180
1181         int retval=jtag_execute_queue();
1182
1183         for (i = 0; i < num_fields; i++)
1184                 free(fields[i].out_value);
1185
1186         free (fields);
1187
1188         return retval;
1189 }
1190
1191 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1192 {
1193         int retval;
1194         scan_field_t *fields;
1195         int num_fields;
1196         int field_count = 0;
1197         int i, e;
1198         jtag_tap_t *tap;
1199         tap_state_t endstate;
1200
1201         /* args[1] = device
1202          * args[2] = num_bits
1203          * args[3] = hex string
1204          * ... repeat num bits and hex string ...
1205          *
1206          * .. optionally:
1207         *     args[N-2] = "-endstate"
1208          *     args[N-1] = statename
1209          */
1210         if ((argc < 4) || ((argc % 2)!=0))
1211         {
1212                 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
1213                 return JIM_ERR;
1214         }
1215
1216         endstate = TAP_IDLE;
1217
1218         /* validate arguments as numbers */
1219         e = JIM_OK;
1220         for (i = 2; i < argc; i+=2)
1221         {
1222                 long bits;
1223                 const char *cp;
1224
1225                 e = Jim_GetLong(interp, args[i], &bits);
1226                 /* If valid - try next arg */
1227                 if( e == JIM_OK ){
1228                         continue;
1229                 }
1230
1231                 /* Not valid.. are we at the end? */
1232                 if ( ((i+2) != argc) ){
1233                         /* nope, then error */
1234                         return e;
1235                 }
1236
1237                 /* it could be: "-endstate FOO"
1238                  * e.g. DRPAUSE so we can issue more instructions
1239                  * before entering RUN/IDLE and executing them.
1240                  */
1241
1242                 /* get arg as a string. */
1243                 cp = Jim_GetString( args[i], NULL );
1244                 /* is it the magic? */
1245                 if( 0 == strcmp( "-endstate", cp ) ){
1246                         /* is the statename valid? */
1247                         cp = Jim_GetString( args[i+1], NULL );
1248
1249                         /* see if it is a valid state name */
1250                         endstate = tap_state_by_name(cp);
1251                         if( endstate < 0 ){
1252                                 /* update the error message */
1253                                 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
1254                         } else {
1255                                 if (!scan_is_safe(endstate))
1256                                         LOG_WARNING("drscan with unsafe "
1257                                                         "endstate \"%s\"", cp);
1258
1259                                 /* valid - so clear the error */
1260                                 e = JIM_OK;
1261                                 /* and remove the last 2 args */
1262                                 argc -= 2;
1263                         }
1264                 }
1265
1266                 /* Still an error? */
1267                 if( e != JIM_OK ){
1268                         return e; /* too bad */
1269                 }
1270         } /* validate args */
1271
1272         tap = jtag_tap_by_jim_obj( interp, args[1] );
1273         if( tap == NULL ){
1274                 return JIM_ERR;
1275         }
1276
1277         num_fields=(argc-2)/2;
1278         fields = malloc(sizeof(scan_field_t) * num_fields);
1279         for (i = 2; i < argc; i+=2)
1280         {
1281                 long bits;
1282                 int len;
1283                 const char *str;
1284
1285                 Jim_GetLong(interp, args[i], &bits);
1286                 str = Jim_GetString(args[i+1], &len);
1287
1288                 fields[field_count].tap = tap;
1289                 fields[field_count].num_bits = bits;
1290                 fields[field_count].out_value = malloc(CEIL(bits, 8));
1291                 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
1292                 fields[field_count].in_value = fields[field_count].out_value;
1293                 field_count++;
1294         }
1295
1296         jtag_add_dr_scan(num_fields, fields, endstate);
1297
1298         retval = jtag_execute_queue();
1299         if (retval != ERROR_OK)
1300         {
1301                 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
1302                 return JIM_ERR;
1303         }
1304
1305         field_count=0;
1306         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
1307         for (i = 2; i < argc; i+=2)
1308         {
1309                 long bits;
1310                 char *str;
1311
1312                 Jim_GetLong(interp, args[i], &bits);
1313                 str = buf_to_str(fields[field_count].in_value, bits, 16);
1314                 free(fields[field_count].out_value);
1315
1316                 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
1317                 free(str);
1318                 field_count++;
1319         }
1320
1321         Jim_SetResult(interp, list);
1322
1323         free(fields);
1324
1325         return JIM_OK;
1326 }
1327
1328
1329 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
1330 {
1331         Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
1332
1333         return JIM_OK;
1334 }
1335
1336
1337 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1338 {
1339         if (argc > 1)
1340                 return ERROR_COMMAND_SYNTAX_ERROR;
1341
1342         if (argc == 1)
1343         {
1344                 if (strcmp(args[0], "enable") == 0)
1345                         jtag_set_verify_capture_ir(true);
1346                 else if (strcmp(args[0], "disable") == 0)
1347                         jtag_set_verify_capture_ir(false);
1348                 else
1349                         return ERROR_COMMAND_SYNTAX_ERROR;
1350         }
1351
1352         const char *status = jtag_will_verify_capture_ir() ? "enabled": "disabled";
1353         command_print(cmd_ctx, "verify Capture-IR is %s", status);
1354
1355         return ERROR_OK;
1356 }
1357
1358 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1359 {
1360         if (argc > 1)
1361                 return ERROR_COMMAND_SYNTAX_ERROR;
1362
1363         if (argc == 1)
1364         {
1365                 if (strcmp(args[0], "enable") == 0)
1366                         jtag_set_verify(true);
1367                 else if (strcmp(args[0], "disable") == 0)
1368                         jtag_set_verify(false);
1369                 else
1370                         return ERROR_COMMAND_SYNTAX_ERROR;
1371         }
1372
1373         const char *status = jtag_will_verify() ? "enabled": "disabled";
1374         command_print(cmd_ctx, "verify jtag capture is %s", status);
1375
1376         return ERROR_OK;
1377 }
1378
1379 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1380 {
1381         if (argc > 1)
1382                 return ERROR_COMMAND_SYNTAX_ERROR;
1383
1384         if (argc == 1)
1385         {
1386                 bool use_new_table;
1387                 if (strcmp(args[0], "short") == 0)
1388                         use_new_table = true;
1389                 else if (strcmp(args[0], "long") == 0)
1390                         use_new_table = false;
1391                 else
1392                         return ERROR_COMMAND_SYNTAX_ERROR;
1393
1394                 tap_use_new_tms_table(use_new_table);
1395         }
1396
1397         command_print(cmd_ctx, "tms sequence is  %s",
1398                         tap_uses_new_tms_table() ? "short": "long");
1399
1400         return ERROR_OK;
1401 }
1402