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