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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_pathmove(int num_states, enum tap_state *path);
 226 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
 227 void jtag_add_reset(int trst, int srst);
 228 void jtag_add_end_state(enum tap_state endstate);
 229 void jtag_add_sleep(u32 us);
 230 int jtag_execute_queue(void);
 231 int jtag_cancel_queue(void);
 232
 233 /* jtag commands */
 234 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 235 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 236 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 237 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 238 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 239 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 240 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 241
 242 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 243
 244 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 245 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 246 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 247 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 248 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 249
 250 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 251
 252 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
 253 {
 254         jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
 255
 256         if (callback == NULL)
 257         {
 258                 return ERROR_INVALID_ARGUMENTS;
 259         }
 260
 261         if (*callbacks_p)
 262         {
 263                 while ((*callbacks_p)->next)
 264                         callbacks_p = &((*callbacks_p)->next);
 265                 callbacks_p = &((*callbacks_p)->next);
 266         }
 267
 268         (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
 269         (*callbacks_p)->callback = callback;
 270         (*callbacks_p)->priv = priv;
 271         (*callbacks_p)->next = NULL;
 272
 273         return ERROR_OK;
 274 }
 275
 276 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
 277 {
 278         jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
 279
 280         if (callback == NULL)
 281         {
 282                 return ERROR_INVALID_ARGUMENTS;
 283         }
 284
 285         while (*callbacks_p)
 286         {
 287                 jtag_event_callback_t **next = &((*callbacks_p)->next);
 288                 if ((*callbacks_p)->callback == callback)
 289                 {
 290                         free(*callbacks_p);
 291                         *callbacks_p = *next;
 292                 }
 293                 callbacks_p = next;
 294         }
 295
 296         return ERROR_OK;
 297 }
 298
 299 int jtag_call_event_callbacks(enum jtag_event event)
 300 {
 301         jtag_event_callback_t *callback = jtag_event_callbacks;
 302
 303         LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
 304
 305         while (callback)
 306         {
 307                 callback->callback(event, callback->priv);
 308                 callback = callback->next;
 309         }
 310
 311         return ERROR_OK;
 312 }
 313
 314 /* returns a pointer to the pointer of the last command in queue
 315  * this may be a pointer to the root pointer (jtag_command_queue)
 316  * or to the next member of the last but one command
 317  */
 318 jtag_command_t** jtag_get_last_command_p(void)
 319 {
 320 /*      jtag_command_t *cmd = jtag_command_queue;
 321
 322         if (cmd)
 323                 while (cmd->next)
 324                         cmd = cmd->next;
 325         else
 326                 return &jtag_command_queue;
 327
 328         return &cmd->next;*/
 329
 330         return last_comand_pointer;
 331 }
 332
 333 /* returns a pointer to the n-th device in the scan chain */
 334 jtag_device_t* jtag_get_device(int num)
 335 {
 336         jtag_device_t *device = jtag_devices;
 337         int i = 0;
 338
 339         while (device)
 340         {
 341                 if (num == i)
 342                         return device;
 343                 device = device->next;
 344                 i++;
 345         }
 346
 347         LOG_ERROR("jtag device number %d not defined", num);
 348         exit(-1);
 349 }
 350
 351 void* cmd_queue_alloc(size_t size)
 352 {
 353         cmd_queue_page_t **p_page = &cmd_queue_pages;
 354         int offset;
 355
 356         if (*p_page)
 357         {
 358                 while ((*p_page)->next)
 359                         p_page = &((*p_page)->next);
 360                 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
 361                         p_page = &((*p_page)->next);
 362         }
 363
 364         if (!*p_page)
 365         {
 366                 *p_page = malloc(sizeof(cmd_queue_page_t));
 367                 (*p_page)->used = 0;
 368                 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
 369                 (*p_page)->next = NULL;
 370         }
 371
 372         offset = (*p_page)->used;
 373         (*p_page)->used += size;
 374
 375         u8 *t=(u8 *)((*p_page)->address);
 376         return t + offset;
 377 }
 378
 379 void cmd_queue_free()
 380 {
 381         cmd_queue_page_t *page = cmd_queue_pages;
 382
 383         while (page)
 384         {
 385                 cmd_queue_page_t *last = page;
 386                 free(page->address);
 387                 page = page->next;
 388                 free(last);
 389         }
 390
 391         cmd_queue_pages = NULL;
 392 }
 393
 394 static void jtag_prelude1()
 395 {
 396         if (jtag_trst == 1)
 397         {
 398                 LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 399                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 400                 return;
 401         }
 402
 403         if (cmd_queue_end_state == TAP_TLR)
 404                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 405 }
 406
 407 static void jtag_prelude(enum tap_state state)
 408 {
 409         jtag_prelude1();
 410
 411         if (state != -1)
 412                 jtag_add_end_state(state);
 413
 414         cmd_queue_cur_state = cmd_queue_end_state;
 415 }
 416
 417 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 418 {
 419         jtag_prelude(state);
 420
 421         int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
 422         if (retval!=ERROR_OK)
 423                 jtag_error=retval;
 424 }
 425
 426 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 427 {
 428         jtag_command_t **last_cmd;
 429         jtag_device_t *device;
 430         int i, j;
 431         int scan_size = 0;
 432
 433
 434         last_cmd = jtag_get_last_command_p();
 435
 436         /* allocate memory for a new list member */
 437         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 438         (*last_cmd)->next = NULL;
 439         last_comand_pointer = &((*last_cmd)->next);
 440         (*last_cmd)->type = JTAG_SCAN;
 441
 442         /* allocate memory for ir scan command */
 443         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 444         (*last_cmd)->cmd.scan->ir_scan = 1;
 445         (*last_cmd)->cmd.scan->num_fields = jtag_num_devices;   /* one field per device */
 446         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
 447         (*last_cmd)->cmd.scan->end_state = state;
 448
 449         for (i = 0; i < jtag_num_devices; i++)
 450         {
 451                 int found = 0;
 452                 device = jtag_get_device(i);
 453                 scan_size = device->ir_length;
 454                 (*last_cmd)->cmd.scan->fields[i].device = i;
 455                 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
 456                 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
 457                 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;     /* disable verification by default */
 458
 459                 /* search the list */
 460                 for (j = 0; j < num_fields; j++)
 461                 {
 462                         if (i == fields[j].device)
 463                         {
 464                                 found = 1;
 465                                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 466                                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 467
 468                                 if (jtag_verify_capture_ir)
 469                                 {
 470                                         if (fields[j].in_handler==NULL)
 471                                         {
 472                                                 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
 473                                         } else
 474                                         {
 475                                                 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
 476                                                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
 477                                                 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
 478                                                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
 479                                         }
 480                                 }
 481
 482                                 device->bypass = 0;
 483                                 break;
 484                         }
 485                 }
 486
 487                 if (!found)
 488                 {
 489                         /* if a device isn't listed, set it to BYPASS */
 490                         (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 491                         (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
 492                         device->bypass = 1;
 493
 494                 }
 495
 496                 /* update device information */
 497                 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
 498         }
 499
 500         return ERROR_OK;
 501 }
 502
 503 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 504 {
 505         jtag_prelude(state);
 506
 507         int retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
 508         if (retval!=ERROR_OK)
 509                 jtag_error=retval;
 510 }
 511
 512 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 513 {
 514         int i;
 515         jtag_command_t **last_cmd;
 516
 517         last_cmd = jtag_get_last_command_p();
 518
 519         /* allocate memory for a new list member */
 520         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 521         (*last_cmd)->next = NULL;
 522         last_comand_pointer = &((*last_cmd)->next);
 523         (*last_cmd)->type = JTAG_SCAN;
 524
 525         /* allocate memory for ir scan command */
 526         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 527         (*last_cmd)->cmd.scan->ir_scan = 1;
 528         (*last_cmd)->cmd.scan->num_fields = num_fields;
 529         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
 530         (*last_cmd)->cmd.scan->end_state = state;
 531
 532         for (i = 0; i < num_fields; i++)
 533         {
 534                 int num_bits = fields[i].num_bits;
 535                 int num_bytes = CEIL(fields[i].num_bits, 8);
 536                 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
 537                 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
 538                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
 539                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
 540                 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
 541                 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
 542                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
 543                 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
 544                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
 545         }
 546         return ERROR_OK;
 547 }
 548
 549 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 550 {
 551         jtag_prelude(state);
 552
 553         int retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
 554         if (retval!=ERROR_OK)
 555                 jtag_error=retval;
 556 }
 557
 558 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 559 {
 560         int i, j;
 561         int bypass_devices = 0;
 562         int field_count = 0;
 563         int scan_size;
 564
 565         jtag_command_t **last_cmd = jtag_get_last_command_p();
 566         jtag_device_t *device = jtag_devices;
 567
 568         /* count devices in bypass */
 569         while (device)
 570         {
 571                 if (device->bypass)
 572                         bypass_devices++;
 573                 device = device->next;
 574         }
 575
 576         /* allocate memory for a new list member */
 577         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 578         last_comand_pointer = &((*last_cmd)->next);
 579         (*last_cmd)->next = NULL;
 580         (*last_cmd)->type = JTAG_SCAN;
 581
 582         /* allocate memory for dr scan command */
 583         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 584         (*last_cmd)->cmd.scan->ir_scan = 0;
 585         (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
 586         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
 587         (*last_cmd)->cmd.scan->end_state = state;
 588
 589         for (i = 0; i < jtag_num_devices; i++)
 590         {
 591                 int found = 0;
 592                 (*last_cmd)->cmd.scan->fields[field_count].device = i;
 593
 594                 for (j = 0; j < num_fields; j++)
 595                 {
 596                         if (i == fields[j].device)
 597                         {
 598                                 found = 1;
 599                                 scan_size = fields[j].num_bits;
 600                                 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
 601                                 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 602                                 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 603                                 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
 604                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
 605                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
 606                                 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
 607                                 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
 608                         }
 609                 }
 610                 if (!found)
 611                 {
 612 #ifdef _DEBUG_JTAG_IO_
 613                         /* if a device isn't listed, the BYPASS register should be selected */
 614                         if (!jtag_get_device(i)->bypass)
 615                         {
 616                                 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
 617                                 exit(-1);
 618                         }
 619 #endif
 620                         /* program the scan field to 1 bit length, and ignore it's value */
 621                         (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
 622                         (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
 623                         (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 624                         (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 625                         (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 626                         (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 627                         (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 628                         (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 629                 }
 630                 else
 631                 {
 632 #ifdef _DEBUG_JTAG_IO_
 633                         /* if a device is listed, the BYPASS register must not be selected */
 634                         if (jtag_get_device(i)->bypass)
 635                         {
 636                                 LOG_ERROR("BUG: scan data for a device in BYPASS");
 637                                 exit(-1);
 638                         }
 639 #endif
 640                 }
 641         }
 642         return ERROR_OK;
 643 }
 644
 645 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
 646                 int num_fields,
 647                 int *num_bits,
 648                 u32 *value,
 649                 enum tap_state end_state)
 650 {
 651         int i;
 652         int field_count = 0;
 653         int scan_size;
 654         int bypass_devices = 0;
 655
 656         jtag_command_t **last_cmd = jtag_get_last_command_p();
 657         jtag_device_t *device = jtag_devices;
 658         /* count devices in bypass */
 659         while (device)
 660         {
 661                 if (device->bypass)
 662                         bypass_devices++;
 663                 device = device->next;
 664         }
 665
 666         /* allocate memory for a new list member */
 667         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 668         last_comand_pointer = &((*last_cmd)->next);
 669         (*last_cmd)->next = NULL;
 670         (*last_cmd)->type = JTAG_SCAN;
 671
 672         /* allocate memory for dr scan command */
 673         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 674         (*last_cmd)->cmd.scan->ir_scan = 0;
 675         (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
 676         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
 677         (*last_cmd)->cmd.scan->end_state = end_state;
 678
 679         for (i = 0; i < jtag_num_devices; i++)
 680         {
 681                 (*last_cmd)->cmd.scan->fields[field_count].device = i;
 682
 683                 if (i == device_num)
 684                 {
 685                         int j;
 686 #ifdef _DEBUG_JTAG_IO_
 687                         /* if a device is listed, the BYPASS register must not be selected */
 688                         if (jtag_get_device(i)->bypass)
 689                         {
 690                                 LOG_ERROR("BUG: scan data for a device in BYPASS");
 691                                 exit(-1);
 692                         }
 693 #endif
 694                         for (j = 0; j < num_fields; j++)
 695                         {
 696                                 u8 out_value[4];
 697                                 scan_size = num_bits[j];
 698                                 buf_set_u32(out_value, 0, scan_size, value[j]);
 699                                 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
 700                                 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 701                                 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 702                                 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 703                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 704                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 705                                 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 706                                 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 707                         }
 708                 } else
 709                 {
 710 #ifdef _DEBUG_JTAG_IO_
 711                         /* if a device isn't listed, the BYPASS register should be selected */
 712                         if (!jtag_get_device(i)->bypass)
 713                         {
 714                                 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
 715                                 exit(-1);
 716                         }
 717 #endif
 718                         /* program the scan field to 1 bit length, and ignore it's value */
 719                         (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
 720                         (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
 721                         (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 722                         (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 723                         (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 724                         (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 725                         (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 726                         (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 727                 }
 728         }
 729 }
 730
 731
 732
 733
 734 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 735 {
 736         jtag_prelude(state);
 737
 738         int retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
 739         if (retval!=ERROR_OK)
 740                 jtag_error=retval;
 741 }
 742
 743 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 744 {
 745         int i;
 746         jtag_command_t **last_cmd = jtag_get_last_command_p();
 747
 748         /* allocate memory for a new list member */
 749         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 750         last_comand_pointer = &((*last_cmd)->next);
 751         (*last_cmd)->next = NULL;
 752         (*last_cmd)->type = JTAG_SCAN;
 753
 754         /* allocate memory for scan command */
 755         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 756         (*last_cmd)->cmd.scan->ir_scan = 0;
 757         (*last_cmd)->cmd.scan->num_fields = num_fields;
 758         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
 759         (*last_cmd)->cmd.scan->end_state = state;
 760
 761         for (i = 0; i < num_fields; i++)
 762         {
 763                 int num_bits = fields[i].num_bits;
 764                 int num_bytes = CEIL(fields[i].num_bits, 8);
 765                 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
 766                 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
 767                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
 768                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
 769                 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
 770                 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
 771                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
 772                 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
 773                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
 774         }
 775
 776         return ERROR_OK;
 777 }
 778
 779 void jtag_add_tms()
 780 {
 781         jtag_prelude(TAP_TLR);
 782
 783         int retval;
 784         retval=interface_jtag_add_tms();
 785         if (retval!=ERROR_OK)
 786                 jtag_error=retval;
 787 }
 788
 789 int MINIDRIVER(interface_jtag_add_tms)()
 790 {
 791         enum tap_state state = TAP_TLR;
 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_tms();
 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, "irscan", handle_irscan_command,
1433                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1434         register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1435                 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1436
1437         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1438                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1439         return ERROR_OK;
1440 }
1441
1442 int jtag_interface_init(struct command_context_s *cmd_ctx)
1443 {
1444         if (!jtag_interface)
1445         {
1446                 /* nothing was previously specified by "interface" command */
1447                 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1448                 return ERROR_JTAG_INVALID_INTERFACE;
1449         }
1450
1451         if (jtag_interface->init() != ERROR_OK)
1452                 return ERROR_JTAG_INIT_FAILED;
1453
1454         jtag = jtag_interface;
1455         return ERROR_OK;
1456 }
1457
1458 int jtag_init(struct command_context_s *cmd_ctx)
1459 {
1460         int validate_tries = 0;
1461         jtag_device_t *device;
1462
1463         LOG_DEBUG("-");
1464
1465         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1466                 return ERROR_JTAG_INIT_FAILED;
1467
1468         device = jtag_devices;
1469         jtag_ir_scan_size = 0;
1470         jtag_num_devices = 0;
1471         while (device != NULL)
1472         {
1473                 jtag_ir_scan_size += device->ir_length;
1474                 jtag_num_devices++;
1475                 device = device->next;
1476         }
1477
1478         jtag_add_tms();
1479         jtag_execute_queue();
1480
1481         /* examine chain first, as this could discover the real chain layout */
1482         if (jtag_examine_chain() != ERROR_OK)
1483         {
1484                 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1485         }
1486
1487         while (jtag_validate_chain() != ERROR_OK)
1488         {
1489                 validate_tries++;
1490                 if (validate_tries > 5)
1491                 {
1492                         LOG_ERROR("Could not validate JTAG chain, exit");
1493                         return ERROR_JTAG_INVALID_INTERFACE;
1494                 }
1495                 usleep(10000);
1496         }
1497
1498         return ERROR_OK;
1499 }
1500
1501
1502 static int default_khz(int khz, int *jtag_speed)
1503 {
1504         LOG_ERROR("Translation from khz to jtag_speed not implemented");
1505         return ERROR_FAIL;
1506 }
1507
1508 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1509 {
1510         int i;
1511
1512         /* check whether the interface is already configured */
1513         if (jtag_interface)
1514         {
1515                 LOG_WARNING("Interface already configured, ignoring");
1516                 return ERROR_OK;
1517         }
1518
1519         /* interface name is a mandatory argument */
1520         if (argc < 1 || args[0][0] == '\0')
1521         {
1522                 return ERROR_COMMAND_SYNTAX_ERROR;
1523         }
1524
1525         for (i=0; jtag_interfaces[i]; i++)
1526         {
1527                 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1528                 {
1529                         if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1530                                 exit(-1);
1531
1532                         jtag_interface = jtag_interfaces[i];
1533
1534                         if (jtag_interface->khz == NULL)
1535                         {
1536                                 jtag_interface->khz = default_khz;
1537                         }
1538                         return ERROR_OK;
1539                 }
1540         }
1541
1542         /* no valid interface was found (i.e. the configuration option,
1543          * didn't match one of the compiled-in interfaces
1544          */
1545         LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1546         LOG_ERROR("compiled-in jtag interfaces:");
1547         for (i = 0; jtag_interfaces[i]; i++)
1548         {
1549                 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1550         }
1551
1552         return ERROR_JTAG_INVALID_INTERFACE;
1553 }
1554
1555 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1556 {
1557         jtag_device_t **last_device_p = &jtag_devices;
1558
1559         if (*last_device_p)
1560         {
1561                 while ((*last_device_p)->next)
1562                         last_device_p = &((*last_device_p)->next);
1563                 last_device_p = &((*last_device_p)->next);
1564         }
1565
1566         if (argc < 3)
1567                 return ERROR_OK;
1568
1569         *last_device_p = malloc(sizeof(jtag_device_t));
1570         (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1571
1572         (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1573         buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1574         (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1575         buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1576
1577         (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1578         (*last_device_p)->bypass = 1;
1579         buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1580
1581         (*last_device_p)->next = NULL;
1582
1583         jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1584
1585         jtag_num_devices++;
1586
1587         return ERROR_OK;
1588 }
1589
1590 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1591 {
1592         jtag_device_t *device = jtag_devices;
1593         int device_count = 0;
1594
1595         while (device)
1596         {
1597                 u32 expected, expected_mask, cur_instr;
1598                 expected = buf_get_u32(device->expected, 0, device->ir_length);
1599                 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1600                 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1601                 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);
1602                 device = device->next;
1603                 device_count++;
1604         }
1605
1606         return ERROR_OK;
1607 }
1608
1609 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1610 {
1611         if (argc >= 1)
1612         {
1613                 if (strcmp(args[0], "none") == 0)
1614                         jtag_reset_config = RESET_NONE;
1615                 else if (strcmp(args[0], "trst_only") == 0)
1616                         jtag_reset_config = RESET_HAS_TRST;
1617                 else if (strcmp(args[0], "srst_only") == 0)
1618                         jtag_reset_config = RESET_HAS_SRST;
1619                 else if (strcmp(args[0], "trst_and_srst") == 0)
1620                         jtag_reset_config = RESET_TRST_AND_SRST;
1621                 else
1622                 {
1623                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1624                         jtag_reset_config = RESET_NONE;
1625                         return ERROR_INVALID_ARGUMENTS;
1626                 }
1627         }
1628
1629         if (argc >= 2)
1630         {
1631                 if (strcmp(args[1], "srst_pulls_trst") == 0)
1632                         jtag_reset_config |= RESET_SRST_PULLS_TRST;
1633                 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1634                         jtag_reset_config |= RESET_TRST_PULLS_SRST;
1635                 else if (strcmp(args[1], "combined") == 0)
1636                         jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1637                 else if (strcmp(args[1], "separate") == 0)
1638                         jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
1639                 else
1640                 {
1641                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1642                         jtag_reset_config = RESET_NONE;
1643                         return ERROR_INVALID_ARGUMENTS;
1644                 }
1645         }
1646
1647         if (argc >= 3)
1648         {
1649                 if (strcmp(args[2], "trst_open_drain") == 0)
1650                         jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1651                 else if (strcmp(args[2], "trst_push_pull") == 0)
1652                         jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1653                 else
1654                 {
1655                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1656                         jtag_reset_config = RESET_NONE;
1657                         return ERROR_INVALID_ARGUMENTS;
1658                 }
1659         }
1660
1661         if (argc >= 4)
1662         {
1663                 if (strcmp(args[3], "srst_push_pull") == 0)
1664                         jtag_reset_config |= RESET_SRST_PUSH_PULL;
1665                 else if (strcmp(args[3], "srst_open_drain") == 0)
1666                         jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1667                 else
1668                 {
1669                         LOG_ERROR("invalid reset_config argument, defaulting to none");
1670                         jtag_reset_config = RESET_NONE;
1671                         return ERROR_INVALID_ARGUMENTS;
1672                 }
1673         }
1674
1675         return ERROR_OK;
1676 }
1677
1678 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1679 {
1680         if (argc < 1)
1681         {
1682                 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1683                 exit(-1);
1684         }
1685         else
1686         {
1687                 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1688         }
1689
1690         return ERROR_OK;
1691 }
1692
1693 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1694 {
1695         if (argc < 1)
1696         {
1697                 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1698                 exit(-1);
1699         }
1700         else
1701         {
1702                 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1703         }
1704
1705         return ERROR_OK;
1706 }
1707
1708 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1709 {
1710         int cur_speed = 0;
1711         if ((argc<1) || (argc>2))
1712                 return ERROR_COMMAND_SYNTAX_ERROR;
1713
1714         if (argc >= 1)
1715                 cur_speed = jtag_speed = jtag_speed_post_reset = strtoul(args[0], NULL, 0);
1716         if (argc == 2)
1717                 cur_speed = jtag_speed_post_reset = strtoul(args[1], NULL, 0);
1718
1719         /* this command can be called during CONFIG,
1720          * in which case jtag isn't initialized */
1721         if (jtag)
1722                 jtag->speed(cur_speed);
1723
1724         return ERROR_OK;
1725 }
1726
1727 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1728 {
1729         int cur_speed = 0;
1730         int speed1, speed2;
1731         if ((argc<1) || (argc>2))
1732                 return ERROR_COMMAND_SYNTAX_ERROR;
1733
1734         if (jtag == NULL)
1735         {
1736                 LOG_ERROR("Interface not selected yet");
1737                 return ERROR_COMMAND_SYNTAX_ERROR;
1738         }
1739
1740         if (argc >= 1)
1741                 speed1 = strtoul(args[0], NULL, 0);
1742         if (argc == 2)
1743                 speed2 = strtoul(args[1], NULL, 0);
1744
1745         if (jtag->khz(speed1, &speed1)!=ERROR_OK)
1746                 return ERROR_OK;
1747
1748         if (jtag->khz(speed2, &speed2)!=ERROR_OK)
1749                 return ERROR_OK;
1750
1751         if (argc >= 1)
1752                 cur_speed = jtag_speed = jtag_speed_post_reset = speed1;
1753
1754         if (argc == 2)
1755                 cur_speed = jtag_speed_post_reset = speed2;
1756
1757         jtag->speed(cur_speed);
1758
1759         return ERROR_OK;
1760 }
1761
1762
1763 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1764 {
1765         enum tap_state state;
1766
1767         if (argc < 1)
1768         {
1769                 return ERROR_COMMAND_SYNTAX_ERROR;
1770         }
1771         else
1772         {
1773                 for (state = 0; state < 16; state++)
1774                 {
1775                         if (strcmp(args[0], tap_state_strings[state]) == 0)
1776                         {
1777                                 jtag_add_end_state(state);
1778                                 jtag_execute_queue();
1779                         }
1780                 }
1781         }
1782         command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1783
1784         return ERROR_OK;
1785 }
1786
1787 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1788 {
1789         int trst = -1;
1790         int srst = -1;
1791
1792         if (argc < 2)
1793         {
1794                 return ERROR_COMMAND_SYNTAX_ERROR;
1795         }
1796
1797         if (args[0][0] == '1')
1798                 trst = 1;
1799         else if (args[0][0] == '0')
1800                 trst = 0;
1801         else
1802         {
1803                 return ERROR_COMMAND_SYNTAX_ERROR;
1804         }
1805
1806         if (args[1][0] == '1')
1807                 srst = 1;
1808         else if (args[1][0] == '0')
1809                 srst = 0;
1810         else
1811         {
1812                 return ERROR_COMMAND_SYNTAX_ERROR;
1813         }
1814
1815         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1816                 return ERROR_JTAG_INIT_FAILED;
1817
1818         jtag_add_reset(trst, srst);
1819         jtag_execute_queue();
1820
1821         return ERROR_OK;
1822 }
1823
1824 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1825 {
1826         if (argc < 1)
1827         {
1828                 return ERROR_COMMAND_SYNTAX_ERROR;
1829         }
1830
1831         jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1832         jtag_execute_queue();
1833
1834         return ERROR_OK;
1835
1836 }
1837
1838
1839 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1840 {
1841         int i;
1842         scan_field_t *fields;
1843
1844         if ((argc < 2) || (argc % 2))
1845         {
1846                 return ERROR_COMMAND_SYNTAX_ERROR;
1847         }
1848
1849         fields = malloc(sizeof(scan_field_t) * argc / 2);
1850
1851         for (i = 0; i < argc / 2; i++)
1852         {
1853                 int device = strtoul(args[i*2], NULL, 0);
1854                 int field_size = jtag_get_device(device)->ir_length;
1855                 fields[i].device = device;
1856                 fields[i].out_value = malloc(CEIL(field_size, 8));
1857                 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1858                 fields[i].out_mask = NULL;
1859                 fields[i].in_value = NULL;
1860                 fields[i].in_check_mask = NULL;
1861                 fields[i].in_handler = NULL;
1862                 fields[i].in_handler_priv = NULL;
1863         }
1864
1865         jtag_add_ir_scan(argc / 2, fields, -1);
1866         jtag_execute_queue();
1867
1868         for (i = 0; i < argc / 2; i++)
1869                 free(fields[i].out_value);
1870
1871         free (fields);
1872
1873         return ERROR_OK;
1874 }
1875
1876 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1877 {
1878         scan_field_t *fields;
1879         int num_fields = 0;
1880         int field_count = 0;
1881         var_t *var;
1882         int i, j;
1883
1884         if ((argc < 2) || (argc % 2))
1885         {
1886                 return ERROR_COMMAND_SYNTAX_ERROR;
1887         }
1888
1889         for (i = 0; i < argc; i+=2)
1890         {
1891                 var = get_var_by_namenum(args[i+1]);
1892                 if (var)
1893                 {
1894                         num_fields += var->num_fields;
1895                 }
1896                 else
1897                 {
1898                         command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1899                         return ERROR_OK;
1900                 }
1901         }
1902
1903         fields = malloc(sizeof(scan_field_t) * num_fields);
1904
1905         for (i = 0; i < argc; i+=2)
1906         {
1907                 var = get_var_by_namenum(args[i+1]);
1908
1909                 for (j = 0; j < var->num_fields; j++)
1910                 {
1911                         fields[field_count].device = strtol(args[i], NULL, 0);
1912                         fields[field_count].num_bits = var->fields[j].num_bits;
1913                         fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1914                         buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1915                         fields[field_count].out_mask = NULL;
1916                         fields[field_count].in_value = fields[field_count].out_value;
1917                         fields[field_count].in_check_mask = NULL;
1918                         fields[field_count].in_check_value = NULL;
1919                         fields[field_count].in_handler = field_le_to_host;
1920                         fields[field_count++].in_handler_priv = &(var->fields[j]);
1921                 }
1922         }
1923
1924         jtag_add_dr_scan(num_fields, fields, -1);
1925         jtag_execute_queue();
1926
1927         for (i = 0; i < argc / 2; i++)
1928                 free(fields[i].out_value);
1929
1930         free(fields);
1931
1932         return ERROR_OK;
1933 }
1934
1935 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1936 {
1937         if (argc == 1)
1938         {
1939                 if (strcmp(args[0], "enable") == 0)
1940                 {
1941                         jtag_verify_capture_ir = 1;
1942                 }
1943                 else if (strcmp(args[0], "disable") == 0)
1944                 {
1945                         jtag_verify_capture_ir = 0;
1946                 } else
1947                 {
1948                         return ERROR_COMMAND_SYNTAX_ERROR;
1949                 }
1950         } else if (argc != 0)
1951         {
1952                 return ERROR_COMMAND_SYNTAX_ERROR;
1953         }
1954
1955         command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
1956
1957         return ERROR_OK;
1958 }