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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 int 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         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         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                 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                 cmd_queue_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                                 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                                 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                                 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                                 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                 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                         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 int jtag_add_reset(int req_trst, int req_srst)
 888 {
 889         int trst_with_tms = 0;
 890         int retval;
 891
 892         if (req_trst == -1)
 893                 req_trst = jtag_trst;
 894
 895         if (req_srst == -1)
 896                 req_srst = jtag_srst;
 897
 898         /* Make sure that jtag_reset_config allows the requested reset */
 899         /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
 900         if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
 901         {
 902                 WARNING("requested reset would assert trst");
 903                 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
 904         }
 905
 906         /* if TRST pulls SRST, we reset with TAP T-L-R */
 907         if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
 908         {
 909                 req_trst = 0;
 910                 trst_with_tms = 1;
 911         }
 912
 913         if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
 914         {
 915                 WARNING("requested nSRST assertion, but the current configuration doesn't support this");
 916                 return ERROR_JTAG_RESET_CANT_SRST;
 917         }
 918
 919         if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
 920         {
 921                 req_trst = 0;
 922                 trst_with_tms = 1;
 923         }
 924
 925         jtag_trst = req_trst;
 926         jtag_srst = req_srst;
 927
 928         retval = interface_jtag_add_reset(req_trst, req_srst);
 929         if (retval!=ERROR_OK)
 930         {
 931                 jtag_error=retval;
 932                 return retval;
 933         }
 934
 935         if (jtag_srst)
 936         {
 937                 DEBUG("SRST line asserted");
 938         }
 939         else
 940         {
 941                 DEBUG("SRST line released");
 942                 if (jtag_nsrst_delay)
 943                         jtag_add_sleep(jtag_nsrst_delay * 1000);
 944         }
 945
 946         if (trst_with_tms)
 947         {
 948                 DEBUG("JTAG reset with tms instead of TRST");
 949                 jtag_add_end_state(TAP_TLR);
 950                 jtag_add_statemove(TAP_TLR);
 951                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 952                 return ERROR_OK;
 953         }
 954
 955         if (jtag_trst)
 956         {
 957                 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
 958                  * and inform possible listeners about this
 959                  */
 960                 DEBUG("TRST line asserted");
 961                 cmd_queue_cur_state = TAP_TLR;
 962                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 963         }
 964         else
 965         {
 966                 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
 967                  * but we might want to add a delay to give the TAP time to settle
 968                  */
 969                 DEBUG("Now in TAP_TLR - Test-Logic-Reset(either due to TRST line asserted or tms reset)");
 970                 if (jtag_ntrst_delay)
 971                         jtag_add_sleep(jtag_ntrst_delay * 1000);
 972         }
 973         return ERROR_OK;
 974 }
 975
 976 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
 977 {
 978         jtag_command_t **last_cmd = jtag_get_last_command_p();
 979
 980         /* allocate memory for a new list member */
 981         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 982         (*last_cmd)->next = NULL;
 983         last_comand_pointer = &((*last_cmd)->next);
 984         (*last_cmd)->type = JTAG_RESET;
 985
 986         (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
 987         (*last_cmd)->cmd.reset->trst = req_trst;
 988         (*last_cmd)->cmd.reset->srst = req_srst;
 989
 990
 991         return ERROR_OK;
 992 }
 993
 994 void jtag_add_end_state(enum tap_state state)
 995 {
 996         cmd_queue_end_state = state;
 997 }
 998
 999 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1000 {
1001         jtag_command_t **last_cmd = jtag_get_last_command_p();
1002
1003         /* allocate memory for a new list member */
1004         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1005         (*last_cmd)->next = NULL;
1006         last_comand_pointer = &((*last_cmd)->next);
1007         (*last_cmd)->type = JTAG_SLEEP;
1008
1009         (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1010         (*last_cmd)->cmd.sleep->us = us;
1011
1012         return ERROR_OK;
1013 }
1014
1015 void jtag_add_sleep(u32 us)
1016 {
1017         int retval=interface_jtag_add_sleep(us);
1018         if (retval!=ERROR_OK)
1019                 jtag_error=retval;
1020         return;
1021 }
1022
1023 int jtag_scan_size(scan_command_t *cmd)
1024 {
1025         int bit_count = 0;
1026         int i;
1027
1028         /* count bits in scan command */
1029         for (i = 0; i < cmd->num_fields; i++)
1030         {
1031                 bit_count += cmd->fields[i].num_bits;
1032         }
1033
1034         return bit_count;
1035 }
1036
1037 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1038 {
1039         int bit_count = 0;
1040         int i;
1041
1042         bit_count = jtag_scan_size(cmd);
1043         *buffer = malloc(CEIL(bit_count, 8));
1044
1045         bit_count = 0;
1046
1047         for (i = 0; i < cmd->num_fields; i++)
1048         {
1049                 if (cmd->fields[i].out_value)
1050                 {
1051 #ifdef _DEBUG_JTAG_IO_
1052                         char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1053 #endif
1054                         buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1055 #ifdef _DEBUG_JTAG_IO_
1056                         DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1057                         free(char_buf);
1058 #endif
1059                 }
1060
1061                 bit_count += cmd->fields[i].num_bits;
1062         }
1063
1064         return bit_count;
1065
1066 }
1067
1068 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1069 {
1070         int i;
1071         int bit_count = 0;
1072         int retval;
1073
1074         /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1075         retval = ERROR_OK;
1076
1077         for (i = 0; i < cmd->num_fields; i++)
1078         {
1079                 /* if neither in_value nor in_handler
1080                  * are specified we don't have to examine this field
1081                  */
1082                 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1083                 {
1084                         int num_bits = cmd->fields[i].num_bits;
1085                         u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1086
1087 #ifdef _DEBUG_JTAG_IO_
1088                         char *char_buf;
1089
1090                         char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1091                         DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1092                         free(char_buf);
1093 #endif
1094
1095                         if (cmd->fields[i].in_value)
1096                         {
1097                                 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1098
1099                                 if (cmd->fields[i].in_handler)
1100                                 {
1101                                         if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1102                                         {
1103                                                 WARNING("in_handler reported a failed check");
1104                                                 retval = ERROR_JTAG_QUEUE_FAILED;
1105                                         }
1106                                 }
1107                         }
1108
1109                         /* no in_value specified, but a handler takes care of the scanned data */
1110                         if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1111                         {
1112                                 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1113                                 {
1114                                         /* We're going to call the error:handler later, but if the in_handler
1115                                          * reported an error we report this failure upstream
1116                                          */
1117                                         WARNING("in_handler reported a failed check");
1118                                         retval = ERROR_JTAG_QUEUE_FAILED;
1119                                 }
1120                         }
1121
1122                         free(captured);
1123                 }
1124                 bit_count += cmd->fields[i].num_bits;
1125         }
1126
1127         return retval;
1128 }
1129
1130 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1131 {
1132         int retval = ERROR_OK;
1133         int num_bits = field->num_bits;
1134
1135         int compare_failed = 0;
1136
1137         if (field->in_check_mask)
1138                 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1139         else
1140                 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1141
1142         if (compare_failed)
1143                 {
1144                 /* An error handler could have caught the failing check
1145                  * only report a problem when there wasn't a handler, or if the handler
1146                  * acknowledged the error
1147                  */
1148                 if (compare_failed)
1149                 {
1150                         char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1151                         char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1152
1153                         if (field->in_check_mask)
1154                         {
1155                                 char *in_check_mask_char;
1156                                 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1157                                 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);
1158                                 free(in_check_mask_char);
1159                         }
1160                         else
1161                         {
1162                                 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1163                         }
1164
1165                         free(captured_char);
1166                         free(in_check_value_char);
1167
1168                         retval = ERROR_JTAG_QUEUE_FAILED;
1169                 }
1170
1171         }
1172         return retval;
1173 }
1174
1175 /*
1176   set up checking of this field using the in_handler. The values passed in must be valid until
1177   after jtag_execute() has completed.
1178  */
1179 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1180 {
1181         if (value)
1182                 field->in_handler = jtag_check_value;
1183         else
1184                 field->in_handler = NULL;       /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1185         field->in_handler_priv = NULL;  /* this will be filled in at the invocation site to point to the field duplicate */
1186         field->in_check_value = value;
1187         field->in_check_mask = mask;
1188 }
1189
1190 enum scan_type jtag_scan_type(scan_command_t *cmd)
1191 {
1192         int i;
1193         int type = 0;
1194
1195         for (i = 0; i < cmd->num_fields; i++)
1196         {
1197                 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1198                         type |= SCAN_IN;
1199                 if (cmd->fields[i].out_value)
1200                         type |= SCAN_OUT;
1201         }
1202
1203         return type;
1204 }
1205
1206 int MINIDRIVER(interface_jtag_execute_queue)(void)
1207 {
1208         int retval;
1209
1210         retval = jtag->execute_queue();
1211
1212         cmd_queue_free();
1213
1214         jtag_command_queue = NULL;
1215         last_comand_pointer = &jtag_command_queue;
1216
1217         return retval;
1218 }
1219
1220 int jtag_execute_queue(void)
1221 {
1222         int retval=interface_jtag_execute_queue();
1223         if (retval==ERROR_OK)
1224         {
1225                 retval=jtag_error;
1226         }
1227         jtag_error=ERROR_OK;
1228         return retval;
1229 }
1230
1231 int jtag_reset_callback(enum jtag_event event, void *priv)
1232 {
1233         jtag_device_t *device = priv;
1234
1235         DEBUG("-");
1236
1237         if (event == JTAG_TRST_ASSERTED)
1238         {
1239                 buf_set_ones(device->cur_instr, device->ir_length);
1240                 device->bypass = 1;
1241         }
1242
1243         return ERROR_OK;
1244 }
1245
1246 void jtag_sleep(u32 us)
1247 {
1248         usleep(us);
1249 }
1250
1251 /* Try to examine chain layout according to IEEE 1149.1 §12
1252  */
1253 int jtag_examine_chain()
1254 {
1255         jtag_device_t *device = jtag_devices;
1256         scan_field_t field;
1257         u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1258         int i;
1259         int bit_count;
1260         int device_count = 0;
1261         u8 zero_check = 0x0;
1262         u8 one_check = 0xff;
1263
1264         field.device = 0;
1265         field.num_bits = sizeof(idcode_buffer) * 8;
1266         field.out_value = idcode_buffer;
1267         field.out_mask = NULL;
1268         field.in_value = idcode_buffer;
1269         field.in_check_value = NULL;
1270         field.in_check_mask = NULL;
1271         field.in_handler = NULL;
1272         field.in_handler_priv = NULL;
1273
1274         for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1275         {
1276                 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1277         }
1278
1279         jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1280         jtag_execute_queue();
1281
1282         for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1283         {
1284                 zero_check |= idcode_buffer[i];
1285                 one_check &= idcode_buffer[i];
1286         }
1287
1288         /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1289         if ((zero_check == 0x00) || (one_check == 0xff))
1290         {
1291                 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1292                 return ERROR_JTAG_INIT_FAILED;
1293         }
1294
1295         for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1296         {
1297                 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1298                 if ((idcode & 1) == 0)
1299                 {
1300                         /* LSB must not be 0, this indicates a device in bypass */
1301                         device_count++;
1302
1303                         bit_count += 1;
1304                 }
1305                 else
1306                 {
1307                         u32 manufacturer;
1308                         u32 part;
1309                         u32 version;
1310
1311                         if (idcode == 0x000000FF)
1312                         {
1313                                 /* End of chain (invalid manufacturer ID) */
1314                                 break;
1315                         }
1316
1317                         if (device)
1318                         {
1319                                 device->idcode = idcode;
1320                                 device = device->next;
1321                         }
1322                         device_count++;
1323
1324                         manufacturer = (idcode & 0xffe) >> 1;
1325                         part = (idcode & 0xffff000) >> 12;
1326                         version = (idcode & 0xf0000000) >> 28;
1327
1328                         INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1329                                 idcode, manufacturer, part, version);
1330
1331                         bit_count += 32;
1332                 }
1333         }
1334
1335         /* see if number of discovered devices matches configuration */
1336         if (device_count != jtag_num_devices)
1337         {
1338                 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1339                                 device_count, jtag_num_devices);
1340                 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1341                 return ERROR_JTAG_INIT_FAILED;
1342         }
1343
1344         return ERROR_OK;
1345 }
1346
1347 int jtag_validate_chain()
1348 {
1349         jtag_device_t *device = jtag_devices;
1350         int total_ir_length = 0;
1351         u8 *ir_test = NULL;
1352         scan_field_t field;
1353         int chain_pos = 0;
1354
1355         while (device)
1356         {
1357                 total_ir_length += device->ir_length;
1358                 device = device->next;
1359         }
1360
1361         total_ir_length += 2;
1362         ir_test = malloc(CEIL(total_ir_length, 8));
1363         buf_set_ones(ir_test, total_ir_length);
1364
1365         field.device = 0;
1366         field.num_bits = total_ir_length;
1367         field.out_value = ir_test;
1368         field.out_mask = NULL;
1369         field.in_value = ir_test;
1370         field.in_check_value = NULL;
1371         field.in_check_mask = NULL;
1372         field.in_handler = NULL;
1373         field.in_handler_priv = NULL;
1374
1375         jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1376         jtag_execute_queue();
1377
1378         device = jtag_devices;
1379         while (device)
1380         {
1381                 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1382                 {
1383                         char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1384                         ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1385                         free(cbuf);
1386                         free(ir_test);
1387                         return ERROR_JTAG_INIT_FAILED;
1388                 }
1389                 chain_pos += device->ir_length;
1390                 device = device->next;
1391         }
1392
1393         if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1394         {
1395                 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1396                 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1397                 free(cbuf);
1398                 free(ir_test);
1399                 return ERROR_JTAG_INIT_FAILED;
1400         }
1401
1402         free(ir_test);
1403
1404         return ERROR_OK;
1405 }
1406
1407 int jtag_register_commands(struct command_context_s *cmd_ctx)
1408 {
1409         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1410                 COMMAND_CONFIG, NULL);
1411         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1412                 COMMAND_ANY, "set jtag speed (if supported) <reset speed> [<post reset speed, default value is reset speed>]");
1413         register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1414                 COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
1415         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1416                 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1417         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1418                 COMMAND_CONFIG, NULL);
1419         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1420                 COMMAND_CONFIG, NULL);
1421         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1422                 COMMAND_CONFIG, NULL);
1423
1424         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1425                 COMMAND_EXEC, "print current scan chain configuration");
1426
1427         register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1428                 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1429         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1430                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1431         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1432                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1433         register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
1434                 COMMAND_EXEC, "move to current endstate or [tap_state]");
1435         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1436                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1437         register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1438                 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1439
1440         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1441                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1442         return ERROR_OK;
1443 }
1444
1445 int jtag_interface_init(struct command_context_s *cmd_ctx)
1446 {
1447         if (!jtag_interface)
1448         {
1449                 /* nothing was previously specified by "interface" command */
1450                 ERROR("JTAG interface has to be specified, see \"interface\" command");
1451                 return ERROR_JTAG_INVALID_INTERFACE;
1452         }
1453
1454         if (jtag_interface->init() != ERROR_OK)
1455                 return ERROR_JTAG_INIT_FAILED;
1456
1457         jtag = jtag_interface;
1458         return ERROR_OK;
1459 }
1460
1461 int jtag_init(struct command_context_s *cmd_ctx)
1462 {
1463         int validate_tries = 0;
1464         jtag_device_t *device;
1465
1466         DEBUG("-");
1467
1468         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1469                 return ERROR_JTAG_INIT_FAILED;
1470
1471         device = jtag_devices;
1472         jtag_ir_scan_size = 0;
1473         jtag_num_devices = 0;
1474         while (device != NULL)
1475         {
1476                 jtag_ir_scan_size += device->ir_length;
1477                 jtag_num_devices++;
1478                 device = device->next;
1479         }
1480
1481         jtag_add_statemove(TAP_TLR);
1482         jtag_execute_queue();
1483
1484         /* examine chain first, as this could discover the real chain layout */
1485         if (jtag_examine_chain() != ERROR_OK)
1486         {
1487                 ERROR("trying to validate configured JTAG chain anyway...");
1488         }
1489
1490         while (jtag_validate_chain() != ERROR_OK)
1491         {
1492                 validate_tries++;
1493                 if (validate_tries > 5)
1494                 {
1495                         ERROR("Could not validate JTAG chain, exit");
1496                         return ERROR_JTAG_INVALID_INTERFACE;
1497                 }
1498                 usleep(10000);
1499         }
1500
1501         return ERROR_OK;
1502 }
1503
1504
1505 static int default_khz(int khz, int *jtag_speed)
1506 {
1507         ERROR("Translation from khz to jtag_speed not implemented");
1508         return ERROR_FAIL;
1509 }
1510
1511 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1512 {
1513         int i;
1514
1515         /* check whether the interface is already configured */
1516         if (jtag_interface)
1517         {
1518                 WARNING("Interface already configured, ignoring");
1519                 return ERROR_OK;
1520         }
1521
1522         /* interface name is a mandatory argument */
1523         if (argc < 1 || args[0][0] == '\0')
1524         {
1525                 return ERROR_COMMAND_SYNTAX_ERROR;
1526         }
1527
1528         for (i=0; jtag_interfaces[i]; i++)
1529         {
1530                 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1531                 {
1532                         if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1533                                 exit(-1);
1534
1535                         jtag_interface = jtag_interfaces[i];
1536
1537                         if (jtag_interface->khz == NULL)
1538                         {
1539                                 jtag_interface->khz = default_khz;
1540                         }
1541                         return ERROR_OK;
1542                 }
1543         }
1544
1545         /* no valid interface was found (i.e. the configuration option,
1546          * didn't match one of the compiled-in interfaces
1547          */
1548         ERROR("No valid jtag interface found (%s)", args[0]);
1549         ERROR("compiled-in jtag interfaces:");
1550         for (i = 0; jtag_interfaces[i]; i++)
1551         {
1552                 ERROR("%i: %s", i, jtag_interfaces[i]->name);
1553         }
1554
1555         return ERROR_JTAG_INVALID_INTERFACE;
1556 }
1557
1558 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1559 {
1560         jtag_device_t **last_device_p = &jtag_devices;
1561
1562         if (*last_device_p)
1563         {
1564                 while ((*last_device_p)->next)
1565                         last_device_p = &((*last_device_p)->next);
1566                 last_device_p = &((*last_device_p)->next);
1567         }
1568
1569         if (argc < 3)
1570                 return ERROR_OK;
1571
1572         *last_device_p = malloc(sizeof(jtag_device_t));
1573         (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1574
1575         (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1576         buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1577         (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1578         buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1579
1580         (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1581         (*last_device_p)->bypass = 1;
1582         buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1583
1584         (*last_device_p)->next = NULL;
1585
1586         jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1587
1588         jtag_num_devices++;
1589
1590         return ERROR_OK;
1591 }
1592
1593 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1594 {
1595         jtag_device_t *device = jtag_devices;
1596         int device_count = 0;
1597
1598         while (device)
1599         {
1600                 u32 expected, expected_mask, cur_instr;
1601                 expected = buf_get_u32(device->expected, 0, device->ir_length);
1602                 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1603                 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1604                 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);
1605                 device = device->next;
1606                 device_count++;
1607         }
1608
1609         return ERROR_OK;
1610 }
1611
1612 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1613 {
1614         if (argc >= 1)
1615         {
1616                 if (strcmp(args[0], "none") == 0)
1617                         jtag_reset_config = RESET_NONE;
1618                 else if (strcmp(args[0], "trst_only") == 0)
1619                         jtag_reset_config = RESET_HAS_TRST;
1620                 else if (strcmp(args[0], "srst_only") == 0)
1621                         jtag_reset_config = RESET_HAS_SRST;
1622                 else if (strcmp(args[0], "trst_and_srst") == 0)
1623                         jtag_reset_config = RESET_TRST_AND_SRST;
1624                 else
1625                 {
1626                         ERROR("invalid reset_config argument, defaulting to none");
1627                         jtag_reset_config = RESET_NONE;
1628                         return ERROR_INVALID_ARGUMENTS;
1629                 }
1630         }
1631
1632         if (argc >= 2)
1633         {
1634                 if (strcmp(args[1], "srst_pulls_trst") == 0)
1635                         jtag_reset_config |= RESET_SRST_PULLS_TRST;
1636                 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1637                         jtag_reset_config |= RESET_TRST_PULLS_SRST;
1638                 else if (strcmp(args[1], "combined") == 0)
1639                         jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1640                 else if (strcmp(args[1], "separate") == 0)
1641                         jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
1642                 else
1643                 {
1644                         ERROR("invalid reset_config argument, defaulting to none");
1645                         jtag_reset_config = RESET_NONE;
1646                         return ERROR_INVALID_ARGUMENTS;
1647                 }
1648         }
1649
1650         if (argc >= 3)
1651         {
1652                 if (strcmp(args[2], "trst_open_drain") == 0)
1653                         jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1654                 else if (strcmp(args[2], "trst_push_pull") == 0)
1655                         jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1656                 else
1657                 {
1658                         ERROR("invalid reset_config argument, defaulting to none");
1659                         jtag_reset_config = RESET_NONE;
1660                         return ERROR_INVALID_ARGUMENTS;
1661                 }
1662         }
1663
1664         if (argc >= 4)
1665         {
1666                 if (strcmp(args[3], "srst_push_pull") == 0)
1667                         jtag_reset_config |= RESET_SRST_PUSH_PULL;
1668                 else if (strcmp(args[3], "srst_open_drain") == 0)
1669                         jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1670                 else
1671                 {
1672                         ERROR("invalid reset_config argument, defaulting to none");
1673                         jtag_reset_config = RESET_NONE;
1674                         return ERROR_INVALID_ARGUMENTS;
1675                 }
1676         }
1677
1678         return ERROR_OK;
1679 }
1680
1681 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1682 {
1683         if (argc < 1)
1684         {
1685                 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1686                 exit(-1);
1687         }
1688         else
1689         {
1690                 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1691         }
1692
1693         return ERROR_OK;
1694 }
1695
1696 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1697 {
1698         if (argc < 1)
1699         {
1700                 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1701                 exit(-1);
1702         }
1703         else
1704         {
1705                 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1706         }
1707
1708         return ERROR_OK;
1709 }
1710
1711 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1712 {
1713         int cur_speed = 0;
1714         if ((argc<1) || (argc>2))
1715                 return ERROR_COMMAND_SYNTAX_ERROR;
1716
1717         if (argc >= 1)
1718                 cur_speed = jtag_speed = jtag_speed_post_reset = strtoul(args[0], NULL, 0);
1719         if (argc == 2)
1720                 cur_speed = jtag_speed_post_reset = strtoul(args[1], NULL, 0);
1721
1722         /* this command can be called during CONFIG,
1723          * in which case jtag isn't initialized */
1724         if (jtag)
1725                 jtag->speed(cur_speed);
1726
1727         return ERROR_OK;
1728 }
1729
1730 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1731 {
1732         int cur_speed = 0;
1733         int speed1, speed2;
1734         if ((argc<1) || (argc>2))
1735                 return ERROR_COMMAND_SYNTAX_ERROR;
1736
1737         if (jtag == NULL)
1738         {
1739                 ERROR("Interface not selected yet");
1740                 return ERROR_COMMAND_SYNTAX_ERROR;
1741         }
1742
1743         if (argc >= 1)
1744                 speed1 = strtoul(args[0], NULL, 0);
1745         if (argc == 2)
1746                 speed2 = strtoul(args[1], NULL, 0);
1747
1748         if (jtag->khz(speed1, &speed1)!=ERROR_OK)
1749                 return ERROR_OK;
1750
1751         if (jtag->khz(speed2, &speed2)!=ERROR_OK)
1752                 return ERROR_OK;
1753
1754         if (argc >= 1)
1755                 cur_speed = jtag_speed = jtag_speed_post_reset = speed1;
1756
1757         if (argc == 2)
1758                 cur_speed = jtag_speed_post_reset = speed2;
1759
1760         jtag->speed(cur_speed);
1761
1762         return ERROR_OK;
1763 }
1764
1765
1766 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1767 {
1768         enum tap_state state;
1769
1770         if (argc < 1)
1771         {
1772                 return ERROR_COMMAND_SYNTAX_ERROR;
1773         }
1774         else
1775         {
1776                 for (state = 0; state < 16; state++)
1777                 {
1778                         if (strcmp(args[0], tap_state_strings[state]) == 0)
1779                         {
1780                                 jtag_add_end_state(state);
1781                                 jtag_execute_queue();
1782                         }
1783                 }
1784         }
1785         command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1786
1787         return ERROR_OK;
1788 }
1789
1790 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1791 {
1792         int trst = -1;
1793         int srst = -1;
1794
1795         if (argc < 2)
1796         {
1797                 return ERROR_COMMAND_SYNTAX_ERROR;
1798         }
1799
1800         if (args[0][0] == '1')
1801                 trst = 1;
1802         else if (args[0][0] == '0')
1803                 trst = 0;
1804         else
1805         {
1806                 return ERROR_COMMAND_SYNTAX_ERROR;
1807         }
1808
1809         if (args[1][0] == '1')
1810                 srst = 1;
1811         else if (args[1][0] == '0')
1812                 srst = 0;
1813         else
1814         {
1815                 return ERROR_COMMAND_SYNTAX_ERROR;
1816         }
1817
1818         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1819                 return ERROR_JTAG_INIT_FAILED;
1820
1821         jtag_add_reset(trst, srst);
1822         jtag_execute_queue();
1823
1824         return ERROR_OK;
1825 }
1826
1827 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1828 {
1829         if (argc < 1)
1830         {
1831                 return ERROR_COMMAND_SYNTAX_ERROR;
1832         }
1833
1834         jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1835         jtag_execute_queue();
1836
1837         return ERROR_OK;
1838
1839 }
1840
1841 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1842 {
1843         enum tap_state state;
1844
1845         state = -1;
1846         if (argc == 1)
1847         {
1848                 for (state = 0; state < 16; state++)
1849                 {
1850                         if (strcmp(args[0], tap_state_strings[state]) == 0)
1851                         {
1852                                 break;
1853                         }
1854                 }
1855         }
1856
1857         jtag_add_statemove(state);
1858         jtag_execute_queue();
1859
1860         return ERROR_OK;
1861
1862 }
1863
1864 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1865 {
1866         int i;
1867         scan_field_t *fields;
1868
1869         if ((argc < 2) || (argc % 2))
1870         {
1871                 return ERROR_COMMAND_SYNTAX_ERROR;
1872         }
1873
1874         fields = malloc(sizeof(scan_field_t) * argc / 2);
1875
1876         for (i = 0; i < argc / 2; i++)
1877         {
1878                 int device = strtoul(args[i*2], NULL, 0);
1879                 int field_size = jtag_get_device(device)->ir_length;
1880                 fields[i].device = device;
1881                 fields[i].out_value = malloc(CEIL(field_size, 8));
1882                 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1883                 fields[i].out_mask = NULL;
1884                 fields[i].in_value = NULL;
1885                 fields[i].in_check_mask = NULL;
1886                 fields[i].in_handler = NULL;
1887                 fields[i].in_handler_priv = NULL;
1888         }
1889
1890         jtag_add_ir_scan(argc / 2, fields, -1);
1891         jtag_execute_queue();
1892
1893         for (i = 0; i < argc / 2; i++)
1894                 free(fields[i].out_value);
1895
1896         free (fields);
1897
1898         return ERROR_OK;
1899 }
1900
1901 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1902 {
1903         scan_field_t *fields;
1904         int num_fields = 0;
1905         int field_count = 0;
1906         var_t *var;
1907         int i, j;
1908
1909         if ((argc < 2) || (argc % 2))
1910         {
1911                 return ERROR_COMMAND_SYNTAX_ERROR;
1912         }
1913
1914         for (i = 0; i < argc; i+=2)
1915         {
1916                 var = get_var_by_namenum(args[i+1]);
1917                 if (var)
1918                 {
1919                         num_fields += var->num_fields;
1920                 }
1921                 else
1922                 {
1923                         command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1924                         return ERROR_OK;
1925                 }
1926         }
1927
1928         fields = malloc(sizeof(scan_field_t) * num_fields);
1929
1930         for (i = 0; i < argc; i+=2)
1931         {
1932                 var = get_var_by_namenum(args[i+1]);
1933
1934                 for (j = 0; j < var->num_fields; j++)
1935                 {
1936                         fields[field_count].device = strtol(args[i], NULL, 0);
1937                         fields[field_count].num_bits = var->fields[j].num_bits;
1938                         fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1939                         buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1940                         fields[field_count].out_mask = NULL;
1941                         fields[field_count].in_value = fields[field_count].out_value;
1942                         fields[field_count].in_check_mask = NULL;
1943                         fields[field_count].in_check_value = NULL;
1944                         fields[field_count].in_handler = field_le_to_host;
1945                         fields[field_count++].in_handler_priv = &(var->fields[j]);
1946                 }
1947         }
1948
1949         jtag_add_dr_scan(num_fields, fields, -1);
1950         jtag_execute_queue();
1951
1952         for (i = 0; i < argc / 2; i++)
1953                 free(fields[i].out_value);
1954
1955         free(fields);
1956
1957         return ERROR_OK;
1958 }
1959
1960 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1961 {
1962         if (argc == 1)
1963         {
1964                 if (strcmp(args[0], "enable") == 0)
1965                 {
1966                         jtag_verify_capture_ir = 1;
1967                 }
1968                 else if (strcmp(args[0], "disable") == 0)
1969                 {
1970                         jtag_verify_capture_ir = 0;
1971                 } else
1972                 {
1973                         return ERROR_COMMAND_SYNTAX_ERROR;
1974                 }
1975         } else if (argc != 0)
1976         {
1977                 return ERROR_COMMAND_SYNTAX_ERROR;
1978         }
1979
1980         command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
1981
1982         return ERROR_OK;
1983 }