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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25
  26 #include "jtag.h"
  27
  28 #include "command.h"
  29 #include "log.h"
  30 #include "interpreter.h"
  31
  32 #include "stdlib.h"
  33 #include "string.h"
  34 #include <unistd.h>
  35
  36
  37 /* note that this is not marked as static as it must be available from outside jtag.c for those
  38    that implement the jtag_xxx() minidriver layer
  39 */
  40 int jtag_error=ERROR_OK;
  41
  42
  43 char* tap_state_strings[16] =
  44 {
  45         "tlr",
  46         "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
  47         "rti",
  48         "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
  49 };
  50
  51 typedef struct cmd_queue_page_s
  52 {
  53         void *address;
  54         size_t used;
  55         struct cmd_queue_page_s *next;
  56 } cmd_queue_page_t;
  57
  58 #define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
  59 static cmd_queue_page_t *cmd_queue_pages = NULL;
  60
  61 /* tap_move[i][j]: tap movement command to go from state i to state j
  62  * 0: Test-Logic-Reset
  63  * 1: Run-Test/Idle
  64  * 2: Shift-DR
  65  * 3: Pause-DR
  66  * 4: Shift-IR
  67  * 5: Pause-IR
  68  *
  69  * SD->SD and SI->SI have to be caught in interface specific code
  70  */
  71 u8 tap_move[6][6] =
  72 {
  73 /*        TLR   RTI   SD    PD    SI    PI             */
  74         {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16},   /* TLR */
  75         {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b},   /* RTI */
  76         {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f},   /* SD  */
  77         {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f},   /* PD  */
  78         {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01},   /* SI  */
  79         {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f}    /* PI  */
  80 };
  81
  82 int tap_move_map[16] = {
  83         0, -1, -1,  2, -1,  3, -1, -1,
  84         1, -1, -1,  4, -1,  5, -1, -1
  85 };
  86
  87 tap_transition_t tap_transitions[16] =
  88 {
  89         {TAP_TLR, TAP_RTI},             /* TLR */
  90         {TAP_SIS, TAP_CD},              /* SDS */
  91         {TAP_E1D, TAP_SD},              /* CD  */
  92         {TAP_E1D, TAP_SD},              /* SD  */
  93         {TAP_UD,  TAP_PD},              /* E1D */
  94         {TAP_E2D, TAP_PD},              /* PD  */
  95         {TAP_UD,  TAP_SD},              /* E2D */
  96         {TAP_SDS, TAP_RTI},             /* UD  */
  97         {TAP_SDS, TAP_RTI},             /* RTI */
  98         {TAP_TLR, TAP_CI},              /* SIS */
  99         {TAP_E1I, TAP_SI},              /* CI  */
 100         {TAP_E1I, TAP_SI},              /* SI  */
 101         {TAP_UI,  TAP_PI},              /* E1I */
 102         {TAP_E2I, TAP_PI},              /* PI  */
 103         {TAP_UI,  TAP_SI},              /* E2I */
 104         {TAP_SDS, TAP_RTI}              /* UI  */
 105 };
 106
 107 char* jtag_event_strings[] =
 108 {
 109         "JTAG controller reset(tms or TRST)"
 110 };
 111
 112 enum tap_state end_state = TAP_TLR;
 113 enum tap_state cur_state = TAP_TLR;
 114 int jtag_trst = 0;
 115 int jtag_srst = 0;
 116
 117 jtag_command_t *jtag_command_queue = NULL;
 118 jtag_command_t **last_comand_pointer = &jtag_command_queue;
 119 jtag_device_t *jtag_devices = NULL;
 120 int jtag_num_devices = 0;
 121 int jtag_ir_scan_size = 0;
 122 enum reset_types jtag_reset_config = RESET_NONE;
 123 enum tap_state cmd_queue_end_state = TAP_TLR;
 124 enum tap_state cmd_queue_cur_state = TAP_TLR;
 125
 126 int jtag_verify_capture_ir = 1;
 127
 128 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
 129 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
 130 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
 131
 132 /* maximum number of JTAG devices expected in the chain
 133  */
 134 #define JTAG_MAX_CHAIN_SIZE 20
 135
 136 /* callbacks to inform high-level handlers about JTAG state changes */
 137 jtag_event_callback_t *jtag_event_callbacks;
 138
 139 /* speed in kHz*/
 140 static int speed1 = 0, speed2 = 0;
 141 /* flag if the kHz speed was defined */
 142 static int hasKHz = 0;
 143
 144 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
 145  */
 146
 147 #if BUILD_ECOSBOARD == 1
 148         extern jtag_interface_t eCosBoard_interface;
 149 #endif
 150
 151 #if BUILD_PARPORT == 1
 152         extern jtag_interface_t parport_interface;
 153 #endif
 154
 155 #if BUILD_FT2232_FTD2XX == 1
 156         extern jtag_interface_t ft2232_interface;
 157 #endif
 158
 159 #if BUILD_FT2232_LIBFTDI == 1
 160         extern jtag_interface_t ft2232_interface;
 161 #endif
 162
 163 #if BUILD_AMTJTAGACCEL == 1
 164         extern jtag_interface_t amt_jtagaccel_interface;
 165 #endif
 166
 167 #if BUILD_EP93XX == 1
 168         extern jtag_interface_t ep93xx_interface;
 169 #endif
 170
 171 #if BUILD_AT91RM9200 == 1
 172         extern jtag_interface_t at91rm9200_interface;
 173 #endif
 174
 175 #if BUILD_GW16012 == 1
 176         extern jtag_interface_t gw16012_interface;
 177 #endif
 178
 179 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
 180         extern jtag_interface_t presto_interface;
 181 #endif
 182
 183 #if BUILD_USBPROG == 1
 184         extern jtag_interface_t usbprog_interface;
 185 #endif
 186
 187 jtag_interface_t *jtag_interfaces[] = {
 188 #if BUILD_ECOSBOARD == 1
 189         &eCosBoard_interface,
 190 #endif
 191 #if BUILD_PARPORT == 1
 192         &parport_interface,
 193 #endif
 194 #if BUILD_FT2232_FTD2XX == 1
 195         &ft2232_interface,
 196 #endif
 197 #if BUILD_FT2232_LIBFTDI == 1
 198         &ft2232_interface,
 199 #endif
 200 #if BUILD_AMTJTAGACCEL == 1
 201         &amt_jtagaccel_interface,
 202 #endif
 203 #if BUILD_EP93XX == 1
 204         &ep93xx_interface,
 205 #endif
 206 #if BUILD_AT91RM9200 == 1
 207         &at91rm9200_interface,
 208 #endif
 209 #if BUILD_GW16012 == 1
 210         &gw16012_interface,
 211 #endif
 212 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
 213         &presto_interface,
 214 #endif
 215 #if BUILD_USBPROG == 1
 216         &usbprog_interface,
 217 #endif
 218         NULL,
 219 };
 220
 221 jtag_interface_t *jtag = NULL;
 222
 223 /* configuration */
 224 jtag_interface_t *jtag_interface = NULL;
 225 int jtag_speed = 0;
 226 int jtag_speed_post_reset = 0;
 227
 228
 229 /* forward declarations */
 230 void jtag_add_pathmove(int num_states, enum tap_state *path);
 231 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
 232 void jtag_add_end_state(enum tap_state endstate);
 233 void jtag_add_sleep(u32 us);
 234 int jtag_execute_queue(void);
 235 int jtag_cancel_queue(void);
 236
 237 /* jtag commands */
 238 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 239 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 240 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 241 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 242 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 243 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 244 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 245
 246 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 247
 248 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 249 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 250 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 251 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 252 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 253
 254 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 255
 256 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
 257 {
 258         jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
 259
 260         if (callback == NULL)
 261         {
 262                 return ERROR_INVALID_ARGUMENTS;
 263         }
 264
 265         if (*callbacks_p)
 266         {
 267                 while ((*callbacks_p)->next)
 268                         callbacks_p = &((*callbacks_p)->next);
 269                 callbacks_p = &((*callbacks_p)->next);
 270         }
 271
 272         (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
 273         (*callbacks_p)->callback = callback;
 274         (*callbacks_p)->priv = priv;
 275         (*callbacks_p)->next = NULL;
 276
 277         return ERROR_OK;
 278 }
 279
 280 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
 281 {
 282         jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
 283
 284         if (callback == NULL)
 285         {
 286                 return ERROR_INVALID_ARGUMENTS;
 287         }
 288
 289         while (*callbacks_p)
 290         {
 291                 jtag_event_callback_t **next = &((*callbacks_p)->next);
 292                 if ((*callbacks_p)->callback == callback)
 293                 {
 294                         free(*callbacks_p);
 295                         *callbacks_p = *next;
 296                 }
 297                 callbacks_p = next;
 298         }
 299
 300         return ERROR_OK;
 301 }
 302
 303 int jtag_call_event_callbacks(enum jtag_event event)
 304 {
 305         jtag_event_callback_t *callback = jtag_event_callbacks;
 306
 307         LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
 308
 309         while (callback)
 310         {
 311                 callback->callback(event, callback->priv);
 312                 callback = callback->next;
 313         }
 314
 315         return ERROR_OK;
 316 }
 317
 318 /* returns a pointer to the pointer of the last command in queue
 319  * this may be a pointer to the root pointer (jtag_command_queue)
 320  * or to the next member of the last but one command
 321  */
 322 jtag_command_t** jtag_get_last_command_p(void)
 323 {
 324 /*      jtag_command_t *cmd = jtag_command_queue;
 325
 326         if (cmd)
 327                 while (cmd->next)
 328                         cmd = cmd->next;
 329         else
 330                 return &jtag_command_queue;
 331
 332         return &cmd->next;*/
 333
 334         return last_comand_pointer;
 335 }
 336
 337 /* returns a pointer to the n-th device in the scan chain */
 338 jtag_device_t* jtag_get_device(int num)
 339 {
 340         jtag_device_t *device = jtag_devices;
 341         int i = 0;
 342
 343         while (device)
 344         {
 345                 if (num == i)
 346                         return device;
 347                 device = device->next;
 348                 i++;
 349         }
 350
 351         LOG_ERROR("jtag device number %d not defined", num);
 352         exit(-1);
 353 }
 354
 355 void* cmd_queue_alloc(size_t size)
 356 {
 357         cmd_queue_page_t **p_page = &cmd_queue_pages;
 358         int offset;
 359
 360         if (*p_page)
 361         {
 362                 while ((*p_page)->next)
 363                         p_page = &((*p_page)->next);
 364                 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
 365                         p_page = &((*p_page)->next);
 366         }
 367
 368         if (!*p_page)
 369         {
 370                 *p_page = malloc(sizeof(cmd_queue_page_t));
 371                 (*p_page)->used = 0;
 372                 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
 373                 (*p_page)->next = NULL;
 374         }
 375
 376         offset = (*p_page)->used;
 377         (*p_page)->used += size;
 378
 379         u8 *t=(u8 *)((*p_page)->address);
 380         return t + offset;
 381 }
 382
 383 void cmd_queue_free()
 384 {
 385         cmd_queue_page_t *page = cmd_queue_pages;
 386
 387         while (page)
 388         {
 389                 cmd_queue_page_t *last = page;
 390                 free(page->address);
 391                 page = page->next;
 392                 free(last);
 393         }
 394
 395         cmd_queue_pages = NULL;
 396 }
 397
 398 static void jtag_prelude1()
 399 {
 400         if (jtag_trst == 1)
 401         {
 402                 LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 403                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 404                 return;
 405         }
 406
 407         if (cmd_queue_end_state == TAP_TLR)
 408                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 409 }
 410
 411 static void jtag_prelude(enum tap_state state)
 412 {
 413         jtag_prelude1();
 414
 415         if (state != -1)
 416                 jtag_add_end_state(state);
 417
 418         cmd_queue_cur_state = cmd_queue_end_state;
 419 }
 420
 421 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 422 {
 423         jtag_prelude(state);
 424
 425         int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
 426         if (retval!=ERROR_OK)
 427                 jtag_error=retval;
 428 }
 429
 430 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 431 {
 432         jtag_command_t **last_cmd;
 433         jtag_device_t *device;
 434         int i, j;
 435         int scan_size = 0;
 436
 437
 438         last_cmd = jtag_get_last_command_p();
 439
 440         /* allocate memory for a new list member */
 441         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 442         (*last_cmd)->next = NULL;
 443         last_comand_pointer = &((*last_cmd)->next);
 444         (*last_cmd)->type = JTAG_SCAN;
 445
 446         /* allocate memory for ir scan command */
 447         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 448         (*last_cmd)->cmd.scan->ir_scan = 1;
 449         (*last_cmd)->cmd.scan->num_fields = jtag_num_devices;   /* one field per device */
 450         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
 451         (*last_cmd)->cmd.scan->end_state = state;
 452
 453         for (i = 0; i < jtag_num_devices; i++)
 454         {
 455                 int found = 0;
 456                 device = jtag_get_device(i);
 457                 scan_size = device->ir_length;
 458                 (*last_cmd)->cmd.scan->fields[i].device = i;
 459                 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
 460                 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
 461                 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;     /* disable verification by default */
 462
 463                 /* search the list */
 464                 for (j = 0; j < num_fields; j++)
 465                 {
 466                         if (i == fields[j].device)
 467                         {
 468                                 found = 1;
 469                                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 470                                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 471
 472                                 if (jtag_verify_capture_ir)
 473                                 {
 474                                         if (fields[j].in_handler==NULL)
 475                                         {
 476                                                 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
 477                                         } else
 478                                         {
 479                                                 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
 480                                                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
 481                                                 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
 482                                                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
 483                                         }
 484                                 }
 485
 486                                 device->bypass = 0;
 487                                 break;
 488                         }
 489                 }
 490
 491                 if (!found)
 492                 {
 493                         /* if a device isn't listed, set it to BYPASS */
 494                         (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 495                         (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
 496                         device->bypass = 1;
 497
 498                 }
 499
 500                 /* update device information */
 501                 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
 502         }
 503
 504         return ERROR_OK;
 505 }
 506
 507 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 508 {
 509         jtag_prelude(state);
 510
 511         int retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
 512         if (retval!=ERROR_OK)
 513                 jtag_error=retval;
 514 }
 515
 516 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 517 {
 518         int i;
 519         jtag_command_t **last_cmd;
 520
 521         last_cmd = jtag_get_last_command_p();
 522
 523         /* allocate memory for a new list member */
 524         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 525         (*last_cmd)->next = NULL;
 526         last_comand_pointer = &((*last_cmd)->next);
 527         (*last_cmd)->type = JTAG_SCAN;
 528
 529         /* allocate memory for ir scan command */
 530         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 531         (*last_cmd)->cmd.scan->ir_scan = 1;
 532         (*last_cmd)->cmd.scan->num_fields = num_fields;
 533         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
 534         (*last_cmd)->cmd.scan->end_state = state;
 535
 536         for (i = 0; i < num_fields; i++)
 537         {
 538                 int num_bits = fields[i].num_bits;
 539                 int num_bytes = CEIL(fields[i].num_bits, 8);
 540                 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
 541                 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
 542                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
 543                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
 544                 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
 545                 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
 546                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
 547                 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
 548                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
 549         }
 550         return ERROR_OK;
 551 }
 552
 553 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 554 {
 555         jtag_prelude(state);
 556
 557         int retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
 558         if (retval!=ERROR_OK)
 559                 jtag_error=retval;
 560 }
 561
 562 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 563 {
 564         int i, j;
 565         int bypass_devices = 0;
 566         int field_count = 0;
 567         int scan_size;
 568
 569         jtag_command_t **last_cmd = jtag_get_last_command_p();
 570         jtag_device_t *device = jtag_devices;
 571
 572         /* count devices in bypass */
 573         while (device)
 574         {
 575                 if (device->bypass)
 576                         bypass_devices++;
 577                 device = device->next;
 578         }
 579
 580         /* allocate memory for a new list member */
 581         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 582         last_comand_pointer = &((*last_cmd)->next);
 583         (*last_cmd)->next = NULL;
 584         (*last_cmd)->type = JTAG_SCAN;
 585
 586         /* allocate memory for dr scan command */
 587         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 588         (*last_cmd)->cmd.scan->ir_scan = 0;
 589         (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
 590         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
 591         (*last_cmd)->cmd.scan->end_state = state;
 592
 593         for (i = 0; i < jtag_num_devices; i++)
 594         {
 595                 int found = 0;
 596                 (*last_cmd)->cmd.scan->fields[field_count].device = i;
 597
 598                 for (j = 0; j < num_fields; j++)
 599                 {
 600                         if (i == fields[j].device)
 601                         {
 602                                 found = 1;
 603                                 scan_size = fields[j].num_bits;
 604                                 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
 605                                 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 606                                 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 607                                 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
 608                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
 609                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
 610                                 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
 611                                 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
 612                         }
 613                 }
 614                 if (!found)
 615                 {
 616 #ifdef _DEBUG_JTAG_IO_
 617                         /* if a device isn't listed, the BYPASS register should be selected */
 618                         if (!jtag_get_device(i)->bypass)
 619                         {
 620                                 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
 621                                 exit(-1);
 622                         }
 623 #endif
 624                         /* program the scan field to 1 bit length, and ignore it's value */
 625                         (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
 626                         (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
 627                         (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 628                         (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 629                         (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 630                         (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 631                         (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 632                         (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 633                 }
 634                 else
 635                 {
 636 #ifdef _DEBUG_JTAG_IO_
 637                         /* if a device is listed, the BYPASS register must not be selected */
 638                         if (jtag_get_device(i)->bypass)
 639                         {
 640                                 LOG_ERROR("BUG: scan data for a device in BYPASS");
 641                                 exit(-1);
 642                         }
 643 #endif
 644                 }
 645         }
 646         return ERROR_OK;
 647 }
 648
 649 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
 650                 int num_fields,
 651                 int *num_bits,
 652                 u32 *value,
 653                 enum tap_state end_state)
 654 {
 655         int i;
 656         int field_count = 0;
 657         int scan_size;
 658         int bypass_devices = 0;
 659
 660         jtag_command_t **last_cmd = jtag_get_last_command_p();
 661         jtag_device_t *device = jtag_devices;
 662         /* count devices in bypass */
 663         while (device)
 664         {
 665                 if (device->bypass)
 666                         bypass_devices++;
 667                 device = device->next;
 668         }
 669
 670         /* allocate memory for a new list member */
 671         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 672         last_comand_pointer = &((*last_cmd)->next);
 673         (*last_cmd)->next = NULL;
 674         (*last_cmd)->type = JTAG_SCAN;
 675
 676         /* allocate memory for dr scan command */
 677         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 678         (*last_cmd)->cmd.scan->ir_scan = 0;
 679         (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
 680         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
 681         (*last_cmd)->cmd.scan->end_state = end_state;
 682
 683         for (i = 0; i < jtag_num_devices; i++)
 684         {
 685                 (*last_cmd)->cmd.scan->fields[field_count].device = i;
 686
 687                 if (i == device_num)
 688                 {
 689                         int j;
 690 #ifdef _DEBUG_JTAG_IO_
 691                         /* if a device is listed, the BYPASS register must not be selected */
 692                         if (jtag_get_device(i)->bypass)
 693                         {
 694                                 LOG_ERROR("BUG: scan data for a device in BYPASS");
 695                                 exit(-1);
 696                         }
 697 #endif
 698                         for (j = 0; j < num_fields; j++)
 699                         {
 700                                 u8 out_value[4];
 701                                 scan_size = num_bits[j];
 702                                 buf_set_u32(out_value, 0, scan_size, value[j]);
 703                                 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
 704                                 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 705                                 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 706                                 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 707                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 708                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 709                                 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 710                                 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 711                         }
 712                 } else
 713                 {
 714 #ifdef _DEBUG_JTAG_IO_
 715                         /* if a device isn't listed, the BYPASS register should be selected */
 716                         if (!jtag_get_device(i)->bypass)
 717                         {
 718                                 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
 719                                 exit(-1);
 720                         }
 721 #endif
 722                         /* program the scan field to 1 bit length, and ignore it's value */
 723                         (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
 724                         (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
 725                         (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 726                         (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 727                         (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 728                         (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 729                         (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 730                         (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 731                 }
 732         }
 733 }
 734
 735
 736
 737
 738 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 739 {
 740         jtag_prelude(state);
 741
 742         int retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
 743         if (retval!=ERROR_OK)
 744                 jtag_error=retval;
 745 }
 746
 747 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 748 {
 749         int i;
 750         jtag_command_t **last_cmd = jtag_get_last_command_p();
 751
 752         /* allocate memory for a new list member */
 753         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 754         last_comand_pointer = &((*last_cmd)->next);
 755         (*last_cmd)->next = NULL;
 756         (*last_cmd)->type = JTAG_SCAN;
 757
 758         /* allocate memory for scan command */
 759         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 760         (*last_cmd)->cmd.scan->ir_scan = 0;
 761         (*last_cmd)->cmd.scan->num_fields = num_fields;
 762         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
 763         (*last_cmd)->cmd.scan->end_state = state;
 764
 765         for (i = 0; i < num_fields; i++)
 766         {
 767                 int num_bits = fields[i].num_bits;
 768                 int num_bytes = CEIL(fields[i].num_bits, 8);
 769                 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
 770                 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
 771                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
 772                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
 773                 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
 774                 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
 775                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
 776                 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
 777                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
 778         }
 779
 780         return ERROR_OK;
 781 }
 782
 783 void jtag_add_tms()
 784 {
 785         jtag_prelude(TAP_TLR);
 786
 787         int retval;
 788         retval=interface_jtag_add_tms();
 789         if (retval!=ERROR_OK)
 790                 jtag_error=retval;
 791 }
 792
 793 int MINIDRIVER(interface_jtag_add_tms)()
 794 {
 795         enum tap_state state = TAP_TLR;
 796         jtag_command_t **last_cmd = jtag_get_last_command_p();
 797
 798         /* allocate memory for a new list member */
 799         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 800         last_comand_pointer = &((*last_cmd)->next);
 801         (*last_cmd)->next = NULL;
 802         (*last_cmd)->type = JTAG_STATEMOVE;
 803
 804         (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
 805         (*last_cmd)->cmd.statemove->end_state = state;
 806
 807
 808         return ERROR_OK;
 809 }
 810
 811 void jtag_add_pathmove(int num_states, enum tap_state *path)
 812 {
 813         /* the last state has to be a stable state */
 814         if (tap_move_map[path[num_states - 1]] == -1)
 815         {
 816                 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
 817                 exit(-1);
 818         }
 819
 820         enum tap_state cur_state=cmd_queue_cur_state;
 821         int i;
 822         for (i=0; i<num_states; i++)
 823         {
 824                 if ((tap_transitions[cur_state].low != path[i])&&
 825                                 (tap_transitions[cur_state].high != path[i]))
 826                 {
 827                         LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
 828                         exit(-1);
 829                 }
 830                 cur_state = path[i];
 831         }
 832
 833         jtag_prelude1();
 834
 835         cmd_queue_cur_state = path[num_states - 1];
 836
 837         int retval=interface_jtag_add_pathmove(num_states, path);
 838         if (retval!=ERROR_OK)
 839                 jtag_error=retval;
 840 }
 841
 842
 843 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
 844 {
 845         jtag_command_t **last_cmd = jtag_get_last_command_p();
 846         int i;
 847
 848         /* allocate memory for a new list member */
 849         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 850         last_comand_pointer = &((*last_cmd)->next);
 851         (*last_cmd)->next = NULL;
 852         (*last_cmd)->type = JTAG_PATHMOVE;
 853
 854         (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
 855         (*last_cmd)->cmd.pathmove->num_states = num_states;
 856         (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
 857
 858         for (i = 0; i < num_states; i++)
 859                 (*last_cmd)->cmd.pathmove->path[i] = path[i];
 860
 861         return ERROR_OK;
 862 }
 863
 864 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
 865 {
 866         jtag_command_t **last_cmd = jtag_get_last_command_p();
 867
 868         /* allocate memory for a new list member */
 869         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 870         (*last_cmd)->next = NULL;
 871         last_comand_pointer = &((*last_cmd)->next);
 872         (*last_cmd)->type = JTAG_RUNTEST;
 873
 874         (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
 875         (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
 876         (*last_cmd)->cmd.runtest->end_state = state;
 877
 878         return ERROR_OK;
 879 }
 880
 881 void jtag_add_runtest(int num_cycles, enum tap_state state)
 882 {
 883         jtag_prelude(state);
 884
 885         /* executed by sw or hw fifo */
 886         int retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
 887         if (retval!=ERROR_OK)
 888                 jtag_error=retval;
 889 }
 890
 891 void jtag_add_reset(int req_tms_or_trst, int req_srst)
 892 {
 893         int trst_with_tms = 0;
 894         int retval;
 895
 896         /* Make sure that jtag_reset_config allows the requested reset */
 897         /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
 898         if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tms_or_trst))
 899         {
 900                 LOG_ERROR("BUG: requested reset would assert trst");
 901                 jtag_error=ERROR_FAIL;
 902                 return;
 903         }
 904
 905         /* if TRST pulls SRST, we reset with TAP T-L-R */
 906         if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tms_or_trst)) && (req_srst == 0))
 907         {
 908                 trst_with_tms = 1;
 909         }
 910
 911         if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
 912         {
 913                 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
 914                 jtag_error=ERROR_FAIL;
 915                 return;
 916         }
 917
 918         if (req_tms_or_trst)
 919         {
 920                 if (!trst_with_tms && (jtag_reset_config & RESET_HAS_TRST))
 921                 {
 922                         jtag_trst = 1;
 923                 } else
 924                 {
 925                         trst_with_tms = 1;
 926                 }
 927         } else
 928         {
 929                 jtag_trst = 0;
 930         }
 931
 932         jtag_srst = req_srst;
 933
 934         retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
 935         if (retval!=ERROR_OK)
 936         {
 937                 jtag_error=retval;
 938                 return;
 939         }
 940
 941         if (jtag_srst)
 942         {
 943                 LOG_DEBUG("SRST line asserted");
 944         }
 945         else
 946         {
 947                 LOG_DEBUG("SRST line released");
 948                 if (jtag_nsrst_delay)
 949                         jtag_add_sleep(jtag_nsrst_delay * 1000);
 950         }
 951
 952         if (trst_with_tms)
 953         {
 954                 LOG_DEBUG("JTAG reset with tms instead of TRST");
 955                 jtag_add_end_state(TAP_TLR);
 956                 jtag_add_tms();
 957                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 958                 return;
 959         }
 960
 961         if (jtag_trst)
 962         {
 963                 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
 964                  * and inform possible listeners about this
 965                  */
 966                 LOG_DEBUG("TRST line asserted");
 967                 cmd_queue_cur_state = TAP_TLR;
 968                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 969         }
 970         else
 971         {
 972                 if (jtag_ntrst_delay)
 973                         jtag_add_sleep(jtag_ntrst_delay * 1000);
 974         }
 975 }
 976
 977 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
 978 {
 979         jtag_command_t **last_cmd = jtag_get_last_command_p();
 980
 981         /* allocate memory for a new list member */
 982         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 983         (*last_cmd)->next = NULL;
 984         last_comand_pointer = &((*last_cmd)->next);
 985         (*last_cmd)->type = JTAG_RESET;
 986
 987         (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
 988         (*last_cmd)->cmd.reset->trst = req_trst;
 989         (*last_cmd)->cmd.reset->srst = req_srst;
 990
 991
 992         return ERROR_OK;
 993 }
 994
 995 void jtag_add_end_state(enum tap_state state)
 996 {
 997         cmd_queue_end_state = state;
 998         if ((cmd_queue_end_state == TAP_SD)||(cmd_queue_end_state == TAP_SD))
 999         {
1000                 LOG_ERROR("BUG: TAP_SD/SI can't be end state. Calling code should use a larger scan field");
1001         }
1002 }
1003
1004 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1005 {
1006         jtag_command_t **last_cmd = jtag_get_last_command_p();
1007
1008         /* allocate memory for a new list member */
1009         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1010         (*last_cmd)->next = NULL;
1011         last_comand_pointer = &((*last_cmd)->next);
1012         (*last_cmd)->type = JTAG_SLEEP;
1013
1014         (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1015         (*last_cmd)->cmd.sleep->us = us;
1016
1017         return ERROR_OK;
1018 }
1019
1020 void jtag_add_sleep(u32 us)
1021 {
1022         int retval=interface_jtag_add_sleep(us);
1023         if (retval!=ERROR_OK)
1024                 jtag_error=retval;
1025         return;
1026 }
1027
1028 int jtag_scan_size(scan_command_t *cmd)
1029 {
1030         int bit_count = 0;
1031         int i;
1032
1033         /* count bits in scan command */
1034         for (i = 0; i < cmd->num_fields; i++)
1035         {
1036                 bit_count += cmd->fields[i].num_bits;
1037         }
1038
1039         return bit_count;
1040 }
1041
1042 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1043 {
1044         int bit_count = 0;
1045         int i;
1046
1047         bit_count = jtag_scan_size(cmd);
1048         *buffer = malloc(CEIL(bit_count, 8));
1049
1050         bit_count = 0;
1051
1052         for (i = 0; i < cmd->num_fields; i++)
1053         {
1054                 if (cmd->fields[i].out_value)
1055                 {
1056 #ifdef _DEBUG_JTAG_IO_
1057                         char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1058 #endif
1059                         buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1060 #ifdef _DEBUG_JTAG_IO_
1061                         LOG_DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1062                         free(char_buf);
1063 #endif
1064                 }
1065
1066                 bit_count += cmd->fields[i].num_bits;
1067         }
1068
1069         return bit_count;
1070
1071 }
1072
1073 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1074 {
1075         int i;
1076         int bit_count = 0;
1077         int retval;
1078
1079         /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1080         retval = ERROR_OK;
1081
1082         for (i = 0; i < cmd->num_fields; i++)
1083         {
1084                 /* if neither in_value nor in_handler
1085                  * are specified we don't have to examine this field
1086                  */
1087                 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1088                 {
1089                         int num_bits = cmd->fields[i].num_bits;
1090                         u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1091
1092 #ifdef _DEBUG_JTAG_IO_
1093                         char *char_buf;
1094
1095                         char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1096                         LOG_DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1097                         free(char_buf);
1098 #endif
1099
1100                         if (cmd->fields[i].in_value)
1101                         {
1102                                 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1103
1104                                 if (cmd->fields[i].in_handler)
1105                                 {
1106                                         if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1107                                         {
1108                                                 LOG_WARNING("in_handler reported a failed check");
1109                                                 retval = ERROR_JTAG_QUEUE_FAILED;
1110                                         }
1111                                 }
1112                         }
1113
1114                         /* no in_value specified, but a handler takes care of the scanned data */
1115                         if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1116                         {
1117                                 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1118                                 {
1119                                         /* We're going to call the error:handler later, but if the in_handler
1120                                          * reported an error we report this failure upstream
1121                                          */
1122                                         LOG_WARNING("in_handler reported a failed check");
1123                                         retval = ERROR_JTAG_QUEUE_FAILED;
1124                                 }
1125                         }
1126
1127                         free(captured);
1128                 }
1129                 bit_count += cmd->fields[i].num_bits;
1130         }
1131
1132         return retval;
1133 }
1134
1135 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1136 {
1137         int retval = ERROR_OK;
1138         int num_bits = field->num_bits;
1139
1140         int compare_failed = 0;
1141
1142         if (field->in_check_mask)
1143                 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1144         else
1145                 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1146
1147         if (compare_failed)
1148                 {
1149                 /* An error handler could have caught the failing check
1150                  * only report a problem when there wasn't a handler, or if the handler
1151                  * acknowledged the error
1152                  */
1153                 if (compare_failed)
1154                 {
1155                         char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1156                         char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1157
1158                         if (field->in_check_mask)
1159                         {
1160                                 char *in_check_mask_char;
1161                                 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1162                                 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);
1163                                 free(in_check_mask_char);
1164                         }
1165                         else
1166                         {
1167                                 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1168                         }
1169
1170                         free(captured_char);
1171                         free(in_check_value_char);
1172
1173                         retval = ERROR_JTAG_QUEUE_FAILED;
1174                 }
1175
1176         }
1177         return retval;
1178 }
1179
1180 /*
1181   set up checking of this field using the in_handler. The values passed in must be valid until
1182   after jtag_execute() has completed.
1183  */
1184 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1185 {
1186         if (value)
1187                 field->in_handler = jtag_check_value;
1188         else
1189                 field->in_handler = NULL;       /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1190         field->in_handler_priv = NULL;  /* this will be filled in at the invocation site to point to the field duplicate */
1191         field->in_check_value = value;
1192         field->in_check_mask = mask;
1193 }
1194
1195 enum scan_type jtag_scan_type(scan_command_t *cmd)
1196 {
1197         int i;
1198         int type = 0;
1199
1200         for (i = 0; i < cmd->num_fields; i++)
1201         {
1202                 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1203                         type |= SCAN_IN;
1204                 if (cmd->fields[i].out_value)
1205                         type |= SCAN_OUT;
1206         }
1207
1208         return type;
1209 }
1210
1211 int MINIDRIVER(interface_jtag_execute_queue)(void)
1212 {
1213         int retval;
1214
1215         retval = jtag->execute_queue();
1216
1217         cmd_queue_free();
1218
1219         jtag_command_queue = NULL;
1220         last_comand_pointer = &jtag_command_queue;
1221
1222         return retval;
1223 }
1224
1225 int jtag_execute_queue(void)
1226 {
1227         int retval=interface_jtag_execute_queue();
1228         if (retval==ERROR_OK)
1229         {
1230                 retval=jtag_error;
1231         }
1232         jtag_error=ERROR_OK;
1233         return retval;
1234 }
1235
1236 int jtag_reset_callback(enum jtag_event event, void *priv)
1237 {
1238         jtag_device_t *device = priv;
1239
1240         LOG_DEBUG("-");
1241
1242         if (event == JTAG_TRST_ASSERTED)
1243         {
1244                 buf_set_ones(device->cur_instr, device->ir_length);
1245                 device->bypass = 1;
1246         }
1247
1248         return ERROR_OK;
1249 }
1250
1251 void jtag_sleep(u32 us)
1252 {
1253         usleep(us);
1254 }
1255
1256 /* Try to examine chain layout according to IEEE 1149.1 §12
1257  */
1258 int jtag_examine_chain()
1259 {
1260         jtag_device_t *device = jtag_devices;
1261         scan_field_t field;
1262         u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1263         int i;
1264         int bit_count;
1265         int device_count = 0;
1266         u8 zero_check = 0x0;
1267         u8 one_check = 0xff;
1268
1269         field.device = 0;
1270         field.num_bits = sizeof(idcode_buffer) * 8;
1271         field.out_value = idcode_buffer;
1272         field.out_mask = NULL;
1273         field.in_value = idcode_buffer;
1274         field.in_check_value = NULL;
1275         field.in_check_mask = NULL;
1276         field.in_handler = NULL;
1277         field.in_handler_priv = NULL;
1278
1279         for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1280         {
1281                 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1282         }
1283
1284         jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1285         jtag_execute_queue();
1286
1287         for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1288         {
1289                 zero_check |= idcode_buffer[i];
1290                 one_check &= idcode_buffer[i];
1291         }
1292
1293         /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1294         if ((zero_check == 0x00) || (one_check == 0xff))
1295         {
1296                 LOG_ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1297                 return ERROR_JTAG_INIT_FAILED;
1298         }
1299
1300         for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1301         {
1302                 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1303                 if ((idcode & 1) == 0)
1304                 {
1305                         /* LSB must not be 0, this indicates a device in bypass */
1306                         device_count++;
1307
1308                         bit_count += 1;
1309                 }
1310                 else
1311                 {
1312                         u32 manufacturer;
1313                         u32 part;
1314                         u32 version;
1315
1316                         if (idcode == 0x000000FF)
1317                         {
1318                                 /* End of chain (invalid manufacturer ID) */
1319                                 break;
1320                         }
1321
1322                         if (device)
1323                         {
1324                                 device->idcode = idcode;
1325                                 device = device->next;
1326                         }
1327                         device_count++;
1328
1329                         manufacturer = (idcode & 0xffe) >> 1;
1330                         part = (idcode & 0xffff000) >> 12;
1331                         version = (idcode & 0xf0000000) >> 28;
1332
1333                         LOG_INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1334                                 idcode, manufacturer, part, version);
1335
1336                         bit_count += 32;
1337                 }
1338         }
1339
1340         /* see if number of discovered devices matches configuration */
1341         if (device_count != jtag_num_devices)
1342         {
1343                 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1344                                 device_count, jtag_num_devices);
1345                 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1346                 return ERROR_JTAG_INIT_FAILED;
1347         }
1348
1349         return ERROR_OK;
1350 }
1351
1352 int jtag_validate_chain()
1353 {
1354         jtag_device_t *device = jtag_devices;
1355         int total_ir_length = 0;
1356         u8 *ir_test = NULL;
1357         scan_field_t field;
1358         int chain_pos = 0;
1359
1360         while (device)
1361         {
1362                 total_ir_length += device->ir_length;
1363                 device = device->next;
1364         }
1365
1366         total_ir_length += 2;
1367         ir_test = malloc(CEIL(total_ir_length, 8));
1368         buf_set_ones(ir_test, total_ir_length);
1369
1370         field.device = 0;
1371         field.num_bits = total_ir_length;
1372         field.out_value = ir_test;
1373         field.out_mask = NULL;
1374         field.in_value = ir_test;
1375         field.in_check_value = NULL;
1376         field.in_check_mask = NULL;
1377         field.in_handler = NULL;
1378         field.in_handler_priv = NULL;
1379
1380         jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1381         jtag_execute_queue();
1382
1383         device = jtag_devices;
1384         while (device)
1385         {
1386                 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1387                 {
1388                         char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1389                         LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1390                         free(cbuf);
1391                         free(ir_test);
1392                         return ERROR_JTAG_INIT_FAILED;
1393                 }
1394                 chain_pos += device->ir_length;
1395                 device = device->next;
1396         }
1397
1398         if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1399         {
1400                 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1401                 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1402                 free(cbuf);
1403                 free(ir_test);
1404                 return ERROR_JTAG_INIT_FAILED;
1405         }
1406
1407         free(ir_test);
1408
1409         return ERROR_OK;
1410 }
1411
1412 int jtag_register_commands(struct command_context_s *cmd_ctx)
1413 {
1414         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1415                 COMMAND_CONFIG, NULL);
1416         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1417                 COMMAND_ANY, "set jtag speed (if supported) <reset speed> [<post reset speed, default value is reset speed>]");
1418         register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1419                 COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
1420         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1421                 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1422         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1423                 COMMAND_CONFIG, NULL);
1424         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1425                 COMMAND_CONFIG, NULL);
1426         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1427                 COMMAND_CONFIG, NULL);
1428
1429         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1430                 COMMAND_EXEC, "print current scan chain configuration");
1431
1432         register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1433                 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1434         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1435                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1436         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1437                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1438         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1439                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1440         register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1441                 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1442
1443         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1444                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1445         return ERROR_OK;
1446 }
1447
1448 int jtag_interface_init(struct command_context_s *cmd_ctx)
1449 {
1450         if (!jtag_interface)
1451         {
1452                 /* nothing was previously specified by "interface" command */
1453                 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1454                 return ERROR_JTAG_INVALID_INTERFACE;
1455         }
1456         if(hasKHz)
1457         {
1458                 /*stay on "reset speed"*/
1459                 if (jtag_interface->khz(speed1, &speed1) == ERROR_OK)
1460                         jtag_speed = speed1;
1461                 if (jtag_interface->khz(speed2, &speed2) == ERROR_OK)
1462                         jtag_speed_post_reset = speed2;
1463                 hasKHz = 0;
1464         }
1465
1466         if (jtag_interface->init() != ERROR_OK)
1467                 return ERROR_JTAG_INIT_FAILED;
1468
1469
1470
1471         jtag = jtag_interface;
1472         return ERROR_OK;
1473 }
1474
1475 int jtag_init(struct command_context_s *cmd_ctx)
1476 {
1477         int validate_tries = 0;
1478         jtag_device_t *device;
1479
1480         LOG_DEBUG("-");
1481
1482         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1483                 return ERROR_JTAG_INIT_FAILED;
1484
1485         device = jtag_devices;
1486         jtag_ir_scan_size = 0;
1487         jtag_num_devices = 0;
1488         while (device != NULL)
1489         {
1490                 jtag_ir_scan_size += device->ir_length;
1491                 jtag_num_devices++;
1492                 device = device->next;
1493         }
1494
1495         jtag_add_tms();
1496         jtag_execute_queue();
1497
1498         /* examine chain first, as this could discover the real chain layout */
1499         if (jtag_examine_chain() != ERROR_OK)
1500         {
1501                 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1502         }
1503
1504         while (jtag_validate_chain() != ERROR_OK)
1505         {
1506                 validate_tries++;
1507
1508                 if (validate_tries > 5)
1509                 {
1510                         LOG_ERROR("Could not validate JTAG chain, exit");
1511                         return ERROR_JTAG_INVALID_INTERFACE;
1512                 }
1513                 usleep(10000);
1514         }
1515
1516         return ERROR_OK;
1517 }
1518
1519
1520 static int default_khz(int khz, int *jtag_speed)
1521 {
1522         LOG_ERROR("Translation from khz to jtag_speed not implemented");
1523         return ERROR_FAIL;
1524 }
1525
1526 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1527 {
1528         int i;
1529
1530         /* check whether the interface is already configured */
1531         if (jtag_interface)
1532         {
1533                 LOG_WARNING("Interface already configured, ignoring");
1534                 return ERROR_OK;
1535         }
1536
1537         /* interface name is a mandatory argument */
1538         if (argc < 1 || args[0][0] == '\0')
1539         {
1540                 return ERROR_COMMAND_SYNTAX_ERROR;
1541         }
1542
1543         for (i=0; jtag_interfaces[i]; i++)
1544         {
1545                 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1546                 {
1547                         if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1548                                 exit(-1);
1549
1550                         jtag_interface = jtag_interfaces[i];
1551
1552                         if (jtag_interface->khz == NULL)
1553                         {
1554                                 jtag_interface->khz = default_khz;
1555                         }
1556                         return ERROR_OK;
1557                 }
1558         }
1559
1560         /* no valid interface was found (i.e. the configuration option,
1561          * didn't match one of the compiled-in interfaces
1562          */
1563         LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1564         LOG_ERROR("compiled-in jtag interfaces:");
1565         for (i = 0; jtag_interfaces[i]; i++)
1566         {
1567                 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1568         }
1569
1570         return ERROR_JTAG_INVALID_INTERFACE;
1571 }
1572
1573 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1574 {
1575         jtag_device_t **last_device_p = &jtag_devices;
1576
1577         if (*last_device_p)
1578         {
1579                 while ((*last_device_p)->next)
1580                         last_device_p = &((*last_device_p)->next);
1581                 last_device_p = &((*last_device_p)->next);
1582         }
1583
1584         if (argc < 3)
1585                 return ERROR_OK;
1586
1587         *last_device_p = malloc(sizeof(jtag_device_t));
1588         (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1589
1590         (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1591         buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1592         (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1593         buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1594
1595         (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1596         (*last_device_p)->bypass = 1;
1597         buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1598
1599         (*last_device_p)->next = NULL;
1600
1601         jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1602
1603         jtag_num_devices++;
1604
1605         return ERROR_OK;
1606 }
1607
1608 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1609 {
1610         jtag_device_t *device = jtag_devices;
1611         int device_count = 0;
1612
1613         while (device)
1614         {
1615                 u32 expected, expected_mask, cur_instr;
1616                 expected = buf_get_u32(device->expected, 0, device->ir_length);
1617                 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1618                 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1619                 command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);
1620                 device = device->next;
1621                 device_count++;
1622         }
1623
1624         return ERROR_OK;
1625 }
1626
1627 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1628 {
1629         if (argc < 1)
1630                 return ERROR_COMMAND_SYNTAX_ERROR;
1631
1632         if (argc >= 1)
1633         {
1634                 if (strcmp(args[0], "none") == 0)
1635                         jtag_reset_config = RESET_NONE;
1636                 else if (strcmp(args[0], "trst_only") == 0)
1637                         jtag_reset_config = RESET_HAS_TRST;
1638                 else if (strcmp(args[0], "srst_only") == 0)
1639                         jtag_reset_config = RESET_HAS_SRST;
1640                 else if (strcmp(args[0], "trst_and_srst") == 0)
1641                         jtag_reset_config = RESET_TRST_AND_SRST;
1642                 else
1643                 {
1644                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1645                         jtag_reset_config = RESET_NONE;
1646                         return ERROR_INVALID_ARGUMENTS;
1647                 }
1648         }
1649
1650         if (argc >= 2)
1651         {
1652                 if (strcmp(args[1], "separate") == 0)
1653                 {
1654                         /* seperate reset lines - default */
1655                 } else
1656                 {
1657                         if (strcmp(args[1], "srst_pulls_trst") == 0)
1658                                 jtag_reset_config |= RESET_SRST_PULLS_TRST;
1659                         else if (strcmp(args[1], "trst_pulls_srst") == 0)
1660                                 jtag_reset_config |= RESET_TRST_PULLS_SRST;
1661                         else if (strcmp(args[1], "combined") == 0)
1662                                 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1663                         else
1664                         {
1665                                 LOG_ERROR("invalid reset_config argument, defaulting to none");
1666                                 jtag_reset_config = RESET_NONE;
1667                                 return ERROR_INVALID_ARGUMENTS;
1668                         }
1669                 }
1670         }
1671
1672         if (argc >= 3)
1673         {
1674                 if (strcmp(args[2], "trst_open_drain") == 0)
1675                         jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1676                 else if (strcmp(args[2], "trst_push_pull") == 0)
1677                         jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1678                 else
1679                 {
1680                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1681                         jtag_reset_config = RESET_NONE;
1682                         return ERROR_INVALID_ARGUMENTS;
1683                 }
1684         }
1685
1686         if (argc >= 4)
1687         {
1688                 if (strcmp(args[3], "srst_push_pull") == 0)
1689                         jtag_reset_config |= RESET_SRST_PUSH_PULL;
1690                 else if (strcmp(args[3], "srst_open_drain") == 0)
1691                         jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1692                 else
1693                 {
1694                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1695                         jtag_reset_config = RESET_NONE;
1696                         return ERROR_INVALID_ARGUMENTS;
1697                 }
1698         }
1699
1700         return ERROR_OK;
1701 }
1702
1703 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1704 {
1705         if (argc < 1)
1706         {
1707                 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1708                 exit(-1);
1709         }
1710         else
1711         {
1712                 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1713         }
1714
1715         return ERROR_OK;
1716 }
1717
1718 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1719 {
1720         if (argc < 1)
1721         {
1722                 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1723                 exit(-1);
1724         }
1725         else
1726         {
1727                 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1728         }
1729
1730         return ERROR_OK;
1731 }
1732
1733 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1734 {
1735         int cur_speed = 0;
1736
1737         if (argc != 0)
1738         {
1739                 if ((argc<1) || (argc>2))
1740                         return ERROR_COMMAND_SYNTAX_ERROR;
1741
1742                 LOG_DEBUG("handle jtag speed");
1743
1744                 if (argc >= 1)
1745                         cur_speed = jtag_speed = jtag_speed_post_reset = strtoul(args[0], NULL, 0);
1746                 if (argc == 2)
1747                         cur_speed = jtag_speed_post_reset = strtoul(args[1], NULL, 0);
1748
1749                 /* this command can be called during CONFIG,
1750                  * in which case jtag isn't initialized */
1751                 if (jtag)
1752                         jtag->speed(cur_speed);
1753         }
1754         command_print(cmd_ctx, "jtag_speed: %d, %d", jtag_speed, jtag_speed_post_reset);
1755
1756         return ERROR_OK;
1757 }
1758
1759 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1760 {
1761         LOG_DEBUG("handle jtag khz");
1762
1763         if ((argc<1) || (argc>2))
1764                 return ERROR_COMMAND_SYNTAX_ERROR;
1765
1766         if (argc >= 1)
1767                 speed1 = speed2 = strtoul(args[0], NULL, 0);
1768         if (argc == 2)
1769                 speed2 = strtoul(args[1], NULL, 0);
1770
1771         if (jtag != NULL)
1772         {
1773                 int cur_speed = 0;
1774                 LOG_DEBUG("have interface set up");
1775                 int speed_div1, speed_div2;
1776                 if (jtag->khz(speed1, &speed_div1)!=ERROR_OK)
1777                         return ERROR_OK;
1778                 if (jtag->khz(speed2, &speed_div2)!=ERROR_OK)
1779                         return ERROR_OK;
1780
1781                 if (argc >= 1)
1782                         cur_speed = jtag_speed = jtag_speed_post_reset = speed_div1;
1783                 if (argc == 2)
1784                         cur_speed = jtag_speed_post_reset = speed_div2;
1785
1786                 jtag->speed(cur_speed);
1787         } else
1788         {
1789                 hasKHz = 1;
1790         }
1791
1792         return ERROR_OK;
1793 }
1794
1795
1796 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1797 {
1798         enum tap_state state;
1799
1800         if (argc < 1)
1801         {
1802                 return ERROR_COMMAND_SYNTAX_ERROR;
1803         }
1804         else
1805         {
1806                 for (state = 0; state < 16; state++)
1807                 {
1808                         if (strcmp(args[0], tap_state_strings[state]) == 0)
1809                         {
1810                                 jtag_add_end_state(state);
1811                                 jtag_execute_queue();
1812                         }
1813                 }
1814         }
1815         command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1816
1817         return ERROR_OK;
1818 }
1819
1820 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1821 {
1822         int trst = -1;
1823         int srst = -1;
1824
1825         if (argc < 2)
1826         {
1827                 return ERROR_COMMAND_SYNTAX_ERROR;
1828         }
1829
1830         if (args[0][0] == '1')
1831                 trst = 1;
1832         else if (args[0][0] == '0')
1833                 trst = 0;
1834         else
1835         {
1836                 return ERROR_COMMAND_SYNTAX_ERROR;
1837         }
1838
1839         if (args[1][0] == '1')
1840                 srst = 1;
1841         else if (args[1][0] == '0')
1842                 srst = 0;
1843         else
1844         {
1845                 return ERROR_COMMAND_SYNTAX_ERROR;
1846         }
1847
1848         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1849                 return ERROR_JTAG_INIT_FAILED;
1850
1851         jtag_add_reset(trst, srst);
1852         jtag_execute_queue();
1853
1854         return ERROR_OK;
1855 }
1856
1857 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1858 {
1859         if (argc < 1)
1860         {
1861                 return ERROR_COMMAND_SYNTAX_ERROR;
1862         }
1863
1864         jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1865         jtag_execute_queue();
1866
1867         return ERROR_OK;
1868
1869 }
1870
1871
1872 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1873 {
1874         int i;
1875         scan_field_t *fields;
1876
1877         if ((argc < 2) || (argc % 2))
1878         {
1879                 return ERROR_COMMAND_SYNTAX_ERROR;
1880         }
1881
1882         fields = malloc(sizeof(scan_field_t) * argc / 2);
1883
1884         for (i = 0; i < argc / 2; i++)
1885         {
1886                 int device = strtoul(args[i*2], NULL, 0);
1887                 int field_size = jtag_get_device(device)->ir_length;
1888                 fields[i].device = device;
1889                 fields[i].out_value = malloc(CEIL(field_size, 8));
1890                 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1891                 fields[i].out_mask = NULL;
1892                 fields[i].in_value = NULL;
1893                 fields[i].in_check_mask = NULL;
1894                 fields[i].in_handler = NULL;
1895                 fields[i].in_handler_priv = NULL;
1896         }
1897
1898         jtag_add_ir_scan(argc / 2, fields, -1);
1899         jtag_execute_queue();
1900
1901         for (i = 0; i < argc / 2; i++)
1902                 free(fields[i].out_value);
1903
1904         free (fields);
1905
1906         return ERROR_OK;
1907 }
1908
1909 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1910 {
1911         scan_field_t *fields;
1912         int num_fields = 0;
1913         int field_count = 0;
1914         var_t *var;
1915         int i, j;
1916
1917         if ((argc < 2) || (argc % 2))
1918         {
1919                 return ERROR_COMMAND_SYNTAX_ERROR;
1920         }
1921
1922         for (i = 0; i < argc; i+=2)
1923         {
1924                 var = get_var_by_namenum(args[i+1]);
1925                 if (var)
1926                 {
1927                         num_fields += var->num_fields;
1928                 }
1929                 else
1930                 {
1931                         command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1932                         return ERROR_OK;
1933                 }
1934         }
1935
1936         fields = malloc(sizeof(scan_field_t) * num_fields);
1937
1938         for (i = 0; i < argc; i+=2)
1939         {
1940                 var = get_var_by_namenum(args[i+1]);
1941
1942                 for (j = 0; j < var->num_fields; j++)
1943                 {
1944                         fields[field_count].device = strtol(args[i], NULL, 0);
1945                         fields[field_count].num_bits = var->fields[j].num_bits;
1946                         fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1947                         buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1948                         fields[field_count].out_mask = NULL;
1949                         fields[field_count].in_value = fields[field_count].out_value;
1950                         fields[field_count].in_check_mask = NULL;
1951                         fields[field_count].in_check_value = NULL;
1952                         fields[field_count].in_handler = field_le_to_host;
1953                         fields[field_count++].in_handler_priv = &(var->fields[j]);
1954                 }
1955         }
1956
1957         jtag_add_dr_scan(num_fields, fields, -1);
1958         jtag_execute_queue();
1959
1960         for (i = 0; i < argc / 2; i++)
1961                 free(fields[i].out_value);
1962
1963         free(fields);
1964
1965         return ERROR_OK;
1966 }
1967
1968 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1969 {
1970         if (argc == 1)
1971         {
1972                 if (strcmp(args[0], "enable") == 0)
1973                 {
1974                         jtag_verify_capture_ir = 1;
1975                 }
1976                 else if (strcmp(args[0], "disable") == 0)
1977                 {
1978                         jtag_verify_capture_ir = 0;
1979                 } else
1980                 {
1981                         return ERROR_COMMAND_SYNTAX_ERROR;
1982                 }
1983         } else if (argc != 0)
1984         {
1985                 return ERROR_COMMAND_SYNTAX_ERROR;
1986         }
1987
1988         command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
1989
1990         return ERROR_OK;
1991 }