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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         "SRST asserted",
 110         "TRST asserted",
 111         "SRST released",
 112         "TRST released"
 113 };
 114
 115 enum tap_state end_state = TAP_TLR;
 116 enum tap_state cur_state = TAP_TLR;
 117 int jtag_trst = 0;
 118 int jtag_srst = 0;
 119
 120 jtag_command_t *jtag_command_queue = NULL;
 121 jtag_command_t **last_comand_pointer = &jtag_command_queue;
 122 jtag_device_t *jtag_devices = NULL;
 123 int jtag_num_devices = 0;
 124 int jtag_ir_scan_size = 0;
 125 enum reset_types jtag_reset_config = RESET_NONE;
 126 enum tap_state cmd_queue_end_state = TAP_TLR;
 127 enum tap_state cmd_queue_cur_state = TAP_TLR;
 128
 129 int jtag_verify_capture_ir = 1;
 130
 131 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
 132 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
 133 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
 134
 135 /* maximum number of JTAG devices expected in the chain
 136  */
 137 #define JTAG_MAX_CHAIN_SIZE 20
 138
 139 /* callbacks to inform high-level handlers about JTAG state changes */
 140 jtag_event_callback_t *jtag_event_callbacks;
 141
 142 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
 143  */
 144
 145 #if BUILD_ECOSBOARD == 1
 146         extern jtag_interface_t eCosBoard_interface;
 147 #endif
 148
 149 #if BUILD_PARPORT == 1
 150         extern jtag_interface_t parport_interface;
 151 #endif
 152
 153 #if BUILD_FT2232_FTD2XX == 1
 154         extern jtag_interface_t ft2232_interface;
 155 #endif
 156
 157 #if BUILD_FT2232_LIBFTDI == 1
 158         extern jtag_interface_t ft2232_interface;
 159 #endif
 160
 161 #if BUILD_AMTJTAGACCEL == 1
 162         extern jtag_interface_t amt_jtagaccel_interface;
 163 #endif
 164
 165 #if BUILD_EP93XX == 1
 166         extern jtag_interface_t ep93xx_interface;
 167 #endif
 168
 169 #if BUILD_AT91RM9200 == 1
 170         extern jtag_interface_t at91rm9200_interface;
 171 #endif
 172
 173 #if BUILD_GW16012 == 1
 174         extern jtag_interface_t gw16012_interface;
 175 #endif
 176
 177 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
 178         extern jtag_interface_t presto_interface;
 179 #endif
 180
 181 #if BUILD_USBPROG == 1
 182         extern jtag_interface_t usbprog_interface;
 183 #endif
 184
 185 jtag_interface_t *jtag_interfaces[] = {
 186 #if BUILD_ECOSBOARD == 1
 187         &eCosBoard_interface,
 188 #endif
 189 #if BUILD_PARPORT == 1
 190         &parport_interface,
 191 #endif
 192 #if BUILD_FT2232_FTD2XX == 1
 193         &ft2232_interface,
 194 #endif
 195 #if BUILD_FT2232_LIBFTDI == 1
 196         &ft2232_interface,
 197 #endif
 198 #if BUILD_AMTJTAGACCEL == 1
 199         &amt_jtagaccel_interface,
 200 #endif
 201 #if BUILD_EP93XX == 1
 202         &ep93xx_interface,
 203 #endif
 204 #if BUILD_AT91RM9200 == 1
 205         &at91rm9200_interface,
 206 #endif
 207 #if BUILD_GW16012 == 1
 208         &gw16012_interface,
 209 #endif
 210 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
 211         &presto_interface,
 212 #endif
 213 #if BUILD_USBPROG == 1
 214         &usbprog_interface,
 215 #endif
 216         NULL,
 217 };
 218
 219 jtag_interface_t *jtag = NULL;
 220
 221 /* configuration */
 222 jtag_interface_t *jtag_interface = NULL;
 223 int jtag_speed = 0;
 224
 225
 226 /* forward declarations */
 227 void jtag_add_statemove(enum tap_state endstate);
 228 void jtag_add_pathmove(int num_states, enum tap_state *path);
 229 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
 230 int jtag_add_reset(int trst, int srst);
 231 void jtag_add_end_state(enum tap_state endstate);
 232 void jtag_add_sleep(u32 us);
 233 int jtag_execute_queue(void);
 234 int jtag_cancel_queue(void);
 235
 236 /* jtag commands */
 237 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 238 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 239 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 240 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 241 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 242 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 243
 244 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 245
 246 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 247 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 248 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 249 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 250 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 251 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 252
 253 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 254
 255 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
 256 {
 257         jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
 258
 259         if (callback == NULL)
 260         {
 261                 return ERROR_INVALID_ARGUMENTS;
 262         }
 263
 264         if (*callbacks_p)
 265         {
 266                 while ((*callbacks_p)->next)
 267                         callbacks_p = &((*callbacks_p)->next);
 268                 callbacks_p = &((*callbacks_p)->next);
 269         }
 270
 271         (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
 272         (*callbacks_p)->callback = callback;
 273         (*callbacks_p)->priv = priv;
 274         (*callbacks_p)->next = NULL;
 275
 276         return ERROR_OK;
 277 }
 278
 279 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
 280 {
 281         jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
 282
 283         if (callback == NULL)
 284         {
 285                 return ERROR_INVALID_ARGUMENTS;
 286         }
 287
 288         while (*callbacks_p)
 289         {
 290                 jtag_event_callback_t **next = &((*callbacks_p)->next);
 291                 if ((*callbacks_p)->callback == callback)
 292                 {
 293                         free(*callbacks_p);
 294                         *callbacks_p = *next;
 295                 }
 296                 callbacks_p = next;
 297         }
 298
 299         return ERROR_OK;
 300 }
 301
 302 int jtag_call_event_callbacks(enum jtag_event event)
 303 {
 304         jtag_event_callback_t *callback = jtag_event_callbacks;
 305
 306         DEBUG("jtag event: %s", jtag_event_strings[event]);
 307
 308         while (callback)
 309         {
 310                 callback->callback(event, callback->priv);
 311                 callback = callback->next;
 312         }
 313
 314         return ERROR_OK;
 315 }
 316
 317 /* returns a pointer to the pointer of the last command in queue
 318  * this may be a pointer to the root pointer (jtag_command_queue)
 319  * or to the next member of the last but one command
 320  */
 321 jtag_command_t** jtag_get_last_command_p(void)
 322 {
 323 /*      jtag_command_t *cmd = jtag_command_queue;
 324
 325         if (cmd)
 326                 while (cmd->next)
 327                         cmd = cmd->next;
 328         else
 329                 return &jtag_command_queue;
 330
 331         return &cmd->next;*/
 332
 333         return last_comand_pointer;
 334 }
 335
 336 /* returns a pointer to the n-th device in the scan chain */
 337 jtag_device_t* jtag_get_device(int num)
 338 {
 339         jtag_device_t *device = jtag_devices;
 340         int i = 0;
 341
 342         while (device)
 343         {
 344                 if (num == i)
 345                         return device;
 346                 device = device->next;
 347                 i++;
 348         }
 349
 350         ERROR("jtag device number %d not defined", num);
 351         exit(-1);
 352 }
 353
 354 void* cmd_queue_alloc(size_t size)
 355 {
 356         cmd_queue_page_t **p_page = &cmd_queue_pages;
 357         int offset;
 358
 359         if (*p_page)
 360         {
 361                 while ((*p_page)->next)
 362                         p_page = &((*p_page)->next);
 363                 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
 364                         p_page = &((*p_page)->next);
 365         }
 366
 367         if (!*p_page)
 368         {
 369                 *p_page = malloc(sizeof(cmd_queue_page_t));
 370                 (*p_page)->used = 0;
 371                 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
 372                 (*p_page)->next = NULL;
 373         }
 374
 375         offset = (*p_page)->used;
 376         (*p_page)->used += size;
 377
 378         u8 *t=(u8 *)((*p_page)->address);
 379         return t + offset;
 380 }
 381
 382 void cmd_queue_free()
 383 {
 384         cmd_queue_page_t *page = cmd_queue_pages;
 385
 386         while (page)
 387         {
 388                 cmd_queue_page_t *last = page;
 389                 free(page->address);
 390                 page = page->next;
 391                 free(last);
 392         }
 393
 394         cmd_queue_pages = NULL;
 395 }
 396
 397 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 398 {
 399         if (jtag_trst == 1)
 400         {
 401                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 402                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 403                 return;
 404         }
 405
 406         if (state != -1)
 407                 cmd_queue_end_state = state;
 408
 409         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 410                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 411
 412         if (cmd_queue_end_state == TAP_TLR)
 413                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 414
 415         cmd_queue_cur_state = cmd_queue_end_state;
 416
 417         int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
 418         if (retval!=ERROR_OK)
 419                 jtag_error=retval;
 420 }
 421
 422 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 423 {
 424         jtag_command_t **last_cmd;
 425         jtag_device_t *device;
 426         int i, j;
 427         int scan_size = 0;
 428
 429
 430         last_cmd = jtag_get_last_command_p();
 431
 432         /* allocate memory for a new list member */
 433         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 434         (*last_cmd)->next = NULL;
 435         last_comand_pointer = &((*last_cmd)->next);
 436         (*last_cmd)->type = JTAG_SCAN;
 437
 438         /* allocate memory for ir scan command */
 439         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 440         (*last_cmd)->cmd.scan->ir_scan = 1;
 441         (*last_cmd)->cmd.scan->num_fields = jtag_num_devices;   /* one field per device */
 442         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
 443         (*last_cmd)->cmd.scan->end_state = state;
 444
 445         for (i = 0; i < jtag_num_devices; i++)
 446         {
 447                 int found = 0;
 448                 device = jtag_get_device(i);
 449                 scan_size = device->ir_length;
 450                 (*last_cmd)->cmd.scan->fields[i].device = i;
 451                 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
 452                 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
 453                 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;     /* disable verification by default */
 454
 455                 /* search the list */
 456                 for (j = 0; j < num_fields; j++)
 457                 {
 458                         if (i == fields[j].device)
 459                         {
 460                                 found = 1;
 461                                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 462                                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 463
 464                                 if (jtag_verify_capture_ir)
 465                                 {
 466                                         if (fields[j].in_handler==NULL)
 467                                         {
 468                                                 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
 469                                         } else
 470                                         {
 471                                                 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
 472                                                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
 473                                                 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
 474                                                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
 475                                         }
 476                                 }
 477
 478                                 device->bypass = 0;
 479                                 break;
 480                         }
 481                 }
 482
 483                 if (!found)
 484                 {
 485                         /* if a device isn't listed, set it to BYPASS */
 486                         (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 487                         (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
 488                         device->bypass = 1;
 489
 490                 }
 491
 492                 /* update device information */
 493                 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
 494         }
 495
 496         return ERROR_OK;
 497 }
 498
 499 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 500 {
 501         if (jtag_trst == 1)
 502         {
 503                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 504                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 505                 return;
 506         }
 507
 508         if (state != -1)
 509                 cmd_queue_end_state = state;
 510
 511         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 512                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 513
 514         if (cmd_queue_end_state == TAP_TLR)
 515                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 516
 517         cmd_queue_cur_state = cmd_queue_end_state;
 518
 519         int retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
 520         if (retval!=ERROR_OK)
 521                 jtag_error=retval;
 522 }
 523
 524 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 525 {
 526         int i;
 527         jtag_command_t **last_cmd;
 528
 529         last_cmd = jtag_get_last_command_p();
 530
 531         /* allocate memory for a new list member */
 532         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 533         (*last_cmd)->next = NULL;
 534         last_comand_pointer = &((*last_cmd)->next);
 535         (*last_cmd)->type = JTAG_SCAN;
 536
 537         /* allocate memory for ir scan command */
 538         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 539         (*last_cmd)->cmd.scan->ir_scan = 1;
 540         (*last_cmd)->cmd.scan->num_fields = num_fields;
 541         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
 542         (*last_cmd)->cmd.scan->end_state = state;
 543
 544         for (i = 0; i < num_fields; i++)
 545         {
 546                 int num_bits = fields[i].num_bits;
 547                 int num_bytes = CEIL(fields[i].num_bits, 8);
 548                 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
 549                 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
 550                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
 551                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
 552                 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
 553                 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
 554                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
 555                 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
 556                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
 557         }
 558         return ERROR_OK;
 559 }
 560
 561 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 562 {
 563         if (jtag_trst == 1)
 564         {
 565                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 566                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 567                 return;
 568         }
 569
 570         if (state != -1)
 571                 cmd_queue_end_state = state;
 572
 573         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 574                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 575
 576         if (cmd_queue_end_state == TAP_TLR)
 577                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 578
 579         cmd_queue_cur_state = cmd_queue_end_state;
 580
 581         int retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
 582         if (retval!=ERROR_OK)
 583                 jtag_error=retval;
 584 }
 585
 586 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 587 {
 588         int i, j;
 589         int bypass_devices = 0;
 590         int field_count = 0;
 591         int scan_size;
 592
 593         jtag_command_t **last_cmd = jtag_get_last_command_p();
 594         jtag_device_t *device = jtag_devices;
 595
 596         /* count devices in bypass */
 597         while (device)
 598         {
 599                 if (device->bypass)
 600                         bypass_devices++;
 601                 device = device->next;
 602         }
 603
 604         /* allocate memory for a new list member */
 605         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 606         last_comand_pointer = &((*last_cmd)->next);
 607         (*last_cmd)->next = NULL;
 608         (*last_cmd)->type = JTAG_SCAN;
 609
 610         /* allocate memory for dr scan command */
 611         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 612         (*last_cmd)->cmd.scan->ir_scan = 0;
 613         (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
 614         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
 615         (*last_cmd)->cmd.scan->end_state = state;
 616
 617         for (i = 0; i < jtag_num_devices; i++)
 618         {
 619                 int found = 0;
 620                 (*last_cmd)->cmd.scan->fields[field_count].device = i;
 621
 622                 for (j = 0; j < num_fields; j++)
 623                 {
 624                         if (i == fields[j].device)
 625                         {
 626                                 found = 1;
 627                                 scan_size = fields[j].num_bits;
 628                                 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
 629                                 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 630                                 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 631                                 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
 632                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
 633                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
 634                                 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
 635                                 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
 636                         }
 637                 }
 638                 if (!found)
 639                 {
 640 #ifdef _DEBUG_JTAG_IO_
 641                         /* if a device isn't listed, the BYPASS register should be selected */
 642                         if (!jtag_get_device(i)->bypass)
 643                         {
 644                                 ERROR("BUG: no scan data for a device not in BYPASS");
 645                                 exit(-1);
 646                         }
 647 #endif
 648                         /* program the scan field to 1 bit length, and ignore it's value */
 649                         (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
 650                         (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
 651                         (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 652                         (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 653                         (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 654                         (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 655                         (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 656                         (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 657                 }
 658                 else
 659                 {
 660 #ifdef _DEBUG_JTAG_IO_
 661                         /* if a device is listed, the BYPASS register must not be selected */
 662                         if (jtag_get_device(i)->bypass)
 663                         {
 664                                 ERROR("BUG: scan data for a device in BYPASS");
 665                                 exit(-1);
 666                         }
 667 #endif
 668                 }
 669         }
 670         return ERROR_OK;
 671 }
 672
 673 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
 674                 int num_fields,
 675                 int *num_bits,
 676                 u32 *value,
 677                 enum tap_state end_state)
 678 {
 679         int i;
 680         int field_count = 0;
 681         int scan_size;
 682         int bypass_devices = 0;
 683
 684         jtag_command_t **last_cmd = jtag_get_last_command_p();
 685         jtag_device_t *device = jtag_devices;
 686         /* count devices in bypass */
 687         while (device)
 688         {
 689                 if (device->bypass)
 690                         bypass_devices++;
 691                 device = device->next;
 692         }
 693
 694         /* allocate memory for a new list member */
 695         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 696         last_comand_pointer = &((*last_cmd)->next);
 697         (*last_cmd)->next = NULL;
 698         (*last_cmd)->type = JTAG_SCAN;
 699
 700         /* allocate memory for dr scan command */
 701         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 702         (*last_cmd)->cmd.scan->ir_scan = 0;
 703         (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
 704         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
 705         (*last_cmd)->cmd.scan->end_state = end_state;
 706
 707         for (i = 0; i < jtag_num_devices; i++)
 708         {
 709                 (*last_cmd)->cmd.scan->fields[field_count].device = i;
 710
 711                 if (i == device_num)
 712                 {
 713                         int j;
 714 #ifdef _DEBUG_JTAG_IO_
 715                         /* if a device is listed, the BYPASS register must not be selected */
 716                         if (jtag_get_device(i)->bypass)
 717                         {
 718                                 ERROR("BUG: scan data for a device in BYPASS");
 719                                 exit(-1);
 720                         }
 721 #endif
 722                         for (j = 0; j < num_fields; j++)
 723                         {
 724                                 u8 out_value[4];
 725                                 scan_size = num_bits[j];
 726                                 buf_set_u32(out_value, 0, scan_size, value[j]);
 727                                 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
 728                                 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
 729                                 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 730                                 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 731                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 732                                 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 733                                 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 734                                 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 735                         }
 736                 } else
 737                 {
 738 #ifdef _DEBUG_JTAG_IO_
 739                         /* if a device isn't listed, the BYPASS register should be selected */
 740                         if (!jtag_get_device(i)->bypass)
 741                         {
 742                                 ERROR("BUG: no scan data for a device not in BYPASS");
 743                                 exit(-1);
 744                         }
 745 #endif
 746                         /* program the scan field to 1 bit length, and ignore it's value */
 747                         (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
 748                         (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
 749                         (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
 750                         (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
 751                         (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
 752                         (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
 753                         (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
 754                         (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
 755                 }
 756         }
 757 }
 758
 759
 760
 761
 762 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 763 {
 764         if (jtag_trst == 1)
 765         {
 766                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 767                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 768                 return;
 769         }
 770
 771         if (state != -1)
 772                 cmd_queue_end_state = state;
 773
 774         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 775                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 776
 777         if (cmd_queue_end_state == TAP_TLR)
 778                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 779
 780         cmd_queue_cur_state = cmd_queue_end_state;
 781
 782         int retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
 783         if (retval!=ERROR_OK)
 784                 jtag_error=retval;
 785 }
 786
 787 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
 788 {
 789         int i;
 790         jtag_command_t **last_cmd = jtag_get_last_command_p();
 791
 792         /* allocate memory for a new list member */
 793         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 794         last_comand_pointer = &((*last_cmd)->next);
 795         (*last_cmd)->next = NULL;
 796         (*last_cmd)->type = JTAG_SCAN;
 797
 798         /* allocate memory for scan command */
 799         (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
 800         (*last_cmd)->cmd.scan->ir_scan = 0;
 801         (*last_cmd)->cmd.scan->num_fields = num_fields;
 802         (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
 803         (*last_cmd)->cmd.scan->end_state = state;
 804
 805         for (i = 0; i < num_fields; i++)
 806         {
 807                 int num_bits = fields[i].num_bits;
 808                 int num_bytes = CEIL(fields[i].num_bits, 8);
 809                 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
 810                 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
 811                 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
 812                 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
 813                 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
 814                 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
 815                 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
 816                 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
 817                 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
 818         }
 819
 820         return ERROR_OK;
 821 }
 822 void jtag_add_statemove(enum tap_state state)
 823 {
 824         if (jtag_trst == 1)
 825         {
 826                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 827                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 828                 return;
 829         }
 830
 831         if (state != -1)
 832                 cmd_queue_end_state = state;
 833
 834         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 835                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 836
 837         if (cmd_queue_end_state == TAP_TLR)
 838                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 839
 840         cmd_queue_cur_state = cmd_queue_end_state;
 841
 842         int retval;
 843         retval=interface_jtag_add_statemove(cmd_queue_end_state);
 844         if (retval!=ERROR_OK)
 845                 jtag_error=retval;
 846 }
 847
 848 int MINIDRIVER(interface_jtag_add_statemove)(enum tap_state state)
 849 {
 850         jtag_command_t **last_cmd = jtag_get_last_command_p();
 851
 852         /* allocate memory for a new list member */
 853         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 854         last_comand_pointer = &((*last_cmd)->next);
 855         (*last_cmd)->next = NULL;
 856         (*last_cmd)->type = JTAG_STATEMOVE;
 857
 858         (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
 859         (*last_cmd)->cmd.statemove->end_state = state;
 860
 861
 862         return ERROR_OK;
 863 }
 864
 865 void jtag_add_pathmove(int num_states, enum tap_state *path)
 866 {
 867         if (jtag_trst == 1)
 868         {
 869                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 870                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 871                 return;
 872         }
 873
 874         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 875                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 876
 877         if (cmd_queue_end_state == TAP_TLR)
 878                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 879
 880         /* the last state has to be a stable state */
 881         if (tap_move_map[path[num_states - 1]] == -1)
 882         {
 883                 ERROR("TAP path doesn't finish in a stable state");
 884                 jtag_error=ERROR_JTAG_NOT_IMPLEMENTED;
 885                 return;
 886         }
 887
 888         enum tap_state cur_state=cmd_queue_cur_state;
 889         int i;
 890         for (i=0; i<num_states; i++)
 891         {
 892                 if ((tap_transitions[cur_state].low != path[i])&&
 893                                 (tap_transitions[cur_state].high != path[i]))
 894                 {
 895                         ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
 896                         exit(-1);
 897                 }
 898                 cur_state = path[i];
 899         }
 900
 901         cmd_queue_cur_state = path[num_states - 1];
 902
 903         int retval=interface_jtag_add_pathmove(num_states, path);
 904         if (retval!=ERROR_OK)
 905                 jtag_error=retval;
 906 }
 907
 908
 909 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
 910 {
 911         jtag_command_t **last_cmd = jtag_get_last_command_p();
 912         int i;
 913
 914         /* allocate memory for a new list member */
 915         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 916         last_comand_pointer = &((*last_cmd)->next);
 917         (*last_cmd)->next = NULL;
 918         (*last_cmd)->type = JTAG_PATHMOVE;
 919
 920         (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
 921         (*last_cmd)->cmd.pathmove->num_states = num_states;
 922         (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
 923
 924         for (i = 0; i < num_states; i++)
 925                 (*last_cmd)->cmd.pathmove->path[i] = path[i];
 926
 927         return ERROR_OK;
 928 }
 929
 930 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
 931 {
 932         jtag_command_t **last_cmd = jtag_get_last_command_p();
 933
 934         /* allocate memory for a new list member */
 935         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
 936         (*last_cmd)->next = NULL;
 937         last_comand_pointer = &((*last_cmd)->next);
 938         (*last_cmd)->type = JTAG_RUNTEST;
 939
 940         (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
 941         (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
 942         (*last_cmd)->cmd.runtest->end_state = state;
 943
 944         return ERROR_OK;
 945 }
 946
 947 void jtag_add_runtest(int num_cycles, enum tap_state state)
 948 {
 949         if (jtag_trst == 1)
 950         {
 951                 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
 952                 jtag_error=ERROR_JTAG_TRST_ASSERTED;
 953                 return;
 954         }
 955
 956         if (state != -1)
 957                 cmd_queue_end_state = state;
 958
 959         if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
 960                 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
 961
 962         if (cmd_queue_end_state == TAP_TLR)
 963                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
 964
 965         cmd_queue_cur_state = cmd_queue_end_state;
 966
 967         /* executed by sw or hw fifo */
 968         int retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
 969         if (retval!=ERROR_OK)
 970                 jtag_error=retval;
 971 }
 972
 973 int jtag_add_reset(int req_trst, int req_srst)
 974 {
 975         int trst_with_tms = 0;
 976         int retval;
 977
 978         if (req_trst == -1)
 979                 req_trst = jtag_trst;
 980
 981         if (req_srst == -1)
 982                 req_srst = jtag_srst;
 983
 984         /* Make sure that jtag_reset_config allows the requested reset */
 985         /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
 986         if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
 987         {
 988                 ERROR("requested reset would assert trst");
 989                 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
 990         }
 991
 992         /* if TRST pulls SRST, we reset with TAP T-L-R */
 993         if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
 994         {
 995                 req_trst = 0;
 996                 trst_with_tms = 1;
 997         }
 998
 999         if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
1000         {
1001                 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
1002                 return ERROR_JTAG_RESET_CANT_SRST;
1003         }
1004
1005         if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
1006         {
1007                 req_trst = 0;
1008                 trst_with_tms = 1;
1009         }
1010
1011         jtag_trst = req_trst;
1012         jtag_srst = req_srst;
1013
1014         retval = interface_jtag_add_reset(req_trst, req_srst);
1015         if (retval!=ERROR_OK)
1016         {
1017                 jtag_error=retval;
1018                 return retval;
1019         }
1020
1021         if (jtag_srst)
1022         {
1023                 jtag_call_event_callbacks(JTAG_SRST_ASSERTED);
1024         }
1025         else
1026         {
1027                 jtag_call_event_callbacks(JTAG_SRST_RELEASED);
1028                 if (jtag_nsrst_delay)
1029                         jtag_add_sleep(jtag_nsrst_delay * 1000);
1030         }
1031
1032         if (trst_with_tms)
1033         {
1034                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1035                 jtag_add_end_state(TAP_TLR);
1036                 jtag_add_statemove(TAP_TLR);
1037                 return ERROR_OK;
1038         }
1039
1040         if (jtag_trst)
1041         {
1042                 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
1043                  * and inform possible listeners about this
1044                  */
1045                 cmd_queue_cur_state = TAP_TLR;
1046                 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1047         }
1048         else
1049         {
1050                 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
1051                  * but we might want to add a delay to give the TAP time to settle
1052                  */
1053                 if (jtag_ntrst_delay)
1054                         jtag_add_sleep(jtag_ntrst_delay * 1000);
1055         }
1056         return ERROR_OK;
1057 }
1058
1059 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
1060 {
1061         jtag_command_t **last_cmd = jtag_get_last_command_p();
1062
1063         /* allocate memory for a new list member */
1064         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1065         (*last_cmd)->next = NULL;
1066         last_comand_pointer = &((*last_cmd)->next);
1067         (*last_cmd)->type = JTAG_RESET;
1068
1069         (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
1070         (*last_cmd)->cmd.reset->trst = req_trst;
1071         (*last_cmd)->cmd.reset->srst = req_srst;
1072
1073
1074         return ERROR_OK;
1075 }
1076
1077 void jtag_add_end_state(enum tap_state state)
1078 {
1079         cmd_queue_end_state = state;
1080 }
1081
1082 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1083 {
1084         jtag_command_t **last_cmd = jtag_get_last_command_p();
1085
1086         /* allocate memory for a new list member */
1087         *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1088         (*last_cmd)->next = NULL;
1089         last_comand_pointer = &((*last_cmd)->next);
1090         (*last_cmd)->type = JTAG_SLEEP;
1091
1092         (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1093         (*last_cmd)->cmd.sleep->us = us;
1094
1095         return ERROR_OK;
1096 }
1097
1098 void jtag_add_sleep(u32 us)
1099 {
1100         int retval=interface_jtag_add_sleep(us);
1101         if (retval!=ERROR_OK)
1102                 jtag_error=retval;
1103         return;
1104 }
1105
1106 int jtag_scan_size(scan_command_t *cmd)
1107 {
1108         int bit_count = 0;
1109         int i;
1110
1111         /* count bits in scan command */
1112         for (i = 0; i < cmd->num_fields; i++)
1113         {
1114                 bit_count += cmd->fields[i].num_bits;
1115         }
1116
1117         return bit_count;
1118 }
1119
1120 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1121 {
1122         int bit_count = 0;
1123         int i;
1124
1125         bit_count = jtag_scan_size(cmd);
1126         *buffer = malloc(CEIL(bit_count, 8));
1127
1128         bit_count = 0;
1129
1130         for (i = 0; i < cmd->num_fields; i++)
1131         {
1132                 if (cmd->fields[i].out_value)
1133                 {
1134 #ifdef _DEBUG_JTAG_IO_
1135                         char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1136 #endif
1137                         buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1138 #ifdef _DEBUG_JTAG_IO_
1139                         DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1140                         free(char_buf);
1141 #endif
1142                 }
1143
1144                 bit_count += cmd->fields[i].num_bits;
1145         }
1146
1147         return bit_count;
1148
1149 }
1150
1151 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1152 {
1153         int i;
1154         int bit_count = 0;
1155         int retval;
1156
1157         /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1158         retval = ERROR_OK;
1159
1160         for (i = 0; i < cmd->num_fields; i++)
1161         {
1162                 /* if neither in_value nor in_handler
1163                  * are specified we don't have to examine this field
1164                  */
1165                 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1166                 {
1167                         int num_bits = cmd->fields[i].num_bits;
1168                         u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1169
1170 #ifdef _DEBUG_JTAG_IO_
1171                         char *char_buf;
1172
1173                         char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1174                         DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1175                         free(char_buf);
1176 #endif
1177
1178                         if (cmd->fields[i].in_value)
1179                         {
1180                                 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1181
1182                                 if (cmd->fields[i].in_handler)
1183                                 {
1184                                         if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1185                                         {
1186                                                 WARNING("in_handler reported a failed check");
1187                                                 retval = ERROR_JTAG_QUEUE_FAILED;
1188                                         }
1189                                 }
1190                         }
1191
1192                         /* no in_value specified, but a handler takes care of the scanned data */
1193                         if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1194                         {
1195                                 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1196                                 {
1197                                         /* We're going to call the error:handler later, but if the in_handler
1198                                          * reported an error we report this failure upstream
1199                                          */
1200                                         WARNING("in_handler reported a failed check");
1201                                         retval = ERROR_JTAG_QUEUE_FAILED;
1202                                 }
1203                         }
1204
1205                         free(captured);
1206                 }
1207                 bit_count += cmd->fields[i].num_bits;
1208         }
1209
1210         return retval;
1211 }
1212
1213 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1214 {
1215         int retval = ERROR_OK;
1216         int num_bits = field->num_bits;
1217
1218         int compare_failed = 0;
1219
1220         if (field->in_check_mask)
1221                 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1222         else
1223                 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1224
1225         if (compare_failed)
1226                 {
1227                 /* An error handler could have caught the failing check
1228                  * only report a problem when there wasn't a handler, or if the handler
1229                  * acknowledged the error
1230                  */
1231                 if (compare_failed)
1232                 {
1233                         char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1234                         char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1235
1236                         if (field->in_check_mask)
1237                         {
1238                                 char *in_check_mask_char;
1239                                 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1240                                 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);
1241                                 free(in_check_mask_char);
1242                         }
1243                         else
1244                         {
1245                                 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1246                         }
1247
1248                         free(captured_char);
1249                         free(in_check_value_char);
1250
1251                         retval = ERROR_JTAG_QUEUE_FAILED;
1252                 }
1253
1254         }
1255         return retval;
1256 }
1257
1258 /*
1259   set up checking of this field using the in_handler. The values passed in must be valid until
1260   after jtag_execute() has completed.
1261  */
1262 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1263 {
1264         if (value)
1265                 field->in_handler = jtag_check_value;
1266         else
1267                 field->in_handler = NULL;       /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1268         field->in_handler_priv = NULL;  /* this will be filled in at the invocation site to point to the field duplicate */
1269         field->in_check_value = value;
1270         field->in_check_mask = mask;
1271 }
1272
1273 enum scan_type jtag_scan_type(scan_command_t *cmd)
1274 {
1275         int i;
1276         int type = 0;
1277
1278         for (i = 0; i < cmd->num_fields; i++)
1279         {
1280                 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1281                         type |= SCAN_IN;
1282                 if (cmd->fields[i].out_value)
1283                         type |= SCAN_OUT;
1284         }
1285
1286         return type;
1287 }
1288
1289 int MINIDRIVER(interface_jtag_execute_queue)(void)
1290 {
1291         int retval;
1292
1293         retval = jtag->execute_queue();
1294
1295         cmd_queue_free();
1296
1297         jtag_command_queue = NULL;
1298         last_comand_pointer = &jtag_command_queue;
1299
1300         return retval;
1301 }
1302
1303 int jtag_execute_queue(void)
1304 {
1305         int retval=interface_jtag_execute_queue();
1306         if (retval==ERROR_OK)
1307         {
1308                 retval=jtag_error;
1309         }
1310         jtag_error=ERROR_OK;
1311         return retval;
1312 }
1313
1314 int jtag_reset_callback(enum jtag_event event, void *priv)
1315 {
1316         jtag_device_t *device = priv;
1317
1318         DEBUG("-");
1319
1320         if (event == JTAG_TRST_ASSERTED)
1321         {
1322                 buf_set_ones(device->cur_instr, device->ir_length);
1323                 device->bypass = 1;
1324         }
1325
1326         return ERROR_OK;
1327 }
1328
1329 void jtag_sleep(u32 us)
1330 {
1331         usleep(us);
1332 }
1333
1334 /* Try to examine chain layout according to IEEE 1149.1 §12
1335  */
1336 int jtag_examine_chain()
1337 {
1338         jtag_device_t *device = jtag_devices;
1339         scan_field_t field;
1340         u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1341         int i;
1342         int bit_count;
1343         int device_count = 0;
1344         u8 zero_check = 0x0;
1345         u8 one_check = 0xff;
1346
1347         field.device = 0;
1348         field.num_bits = sizeof(idcode_buffer) * 8;
1349         field.out_value = idcode_buffer;
1350         field.out_mask = NULL;
1351         field.in_value = idcode_buffer;
1352         field.in_check_value = NULL;
1353         field.in_check_mask = NULL;
1354         field.in_handler = NULL;
1355         field.in_handler_priv = NULL;
1356
1357         for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1358         {
1359                 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1360         }
1361
1362         jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1363         jtag_execute_queue();
1364
1365         for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1366         {
1367                 zero_check |= idcode_buffer[i];
1368                 one_check &= idcode_buffer[i];
1369         }
1370
1371         /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1372         if ((zero_check == 0x00) || (one_check == 0xff))
1373         {
1374                 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1375                 return ERROR_JTAG_INIT_FAILED;
1376         }
1377
1378         for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1379         {
1380                 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1381                 if ((idcode & 1) == 0)
1382                 {
1383                         /* LSB must not be 0, this indicates a device in bypass */
1384                         device_count++;
1385
1386                         bit_count += 1;
1387                 }
1388                 else
1389                 {
1390                         u32 manufacturer;
1391                         u32 part;
1392                         u32 version;
1393
1394                         if (idcode == 0x000000FF)
1395                         {
1396                                 /* End of chain (invalid manufacturer ID) */
1397                                 break;
1398                         }
1399
1400                         if (device)
1401                         {
1402                                 device->idcode = idcode;
1403                                 device = device->next;
1404                         }
1405                         device_count++;
1406
1407                         manufacturer = (idcode & 0xffe) >> 1;
1408                         part = (idcode & 0xffff000) >> 12;
1409                         version = (idcode & 0xf0000000) >> 28;
1410
1411                         INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1412                                 idcode, manufacturer, part, version);
1413
1414                         bit_count += 32;
1415                 }
1416         }
1417
1418         /* see if number of discovered devices matches configuration */
1419         if (device_count != jtag_num_devices)
1420         {
1421                 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1422                                 device_count, jtag_num_devices);
1423                 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1424                 return ERROR_JTAG_INIT_FAILED;
1425         }
1426
1427         return ERROR_OK;
1428 }
1429
1430 int jtag_validate_chain()
1431 {
1432         jtag_device_t *device = jtag_devices;
1433         int total_ir_length = 0;
1434         u8 *ir_test = NULL;
1435         scan_field_t field;
1436         int chain_pos = 0;
1437
1438         while (device)
1439         {
1440                 total_ir_length += device->ir_length;
1441                 device = device->next;
1442         }
1443
1444         total_ir_length += 2;
1445         ir_test = malloc(CEIL(total_ir_length, 8));
1446         buf_set_ones(ir_test, total_ir_length);
1447
1448         field.device = 0;
1449         field.num_bits = total_ir_length;
1450         field.out_value = ir_test;
1451         field.out_mask = NULL;
1452         field.in_value = ir_test;
1453         field.in_check_value = NULL;
1454         field.in_check_mask = NULL;
1455         field.in_handler = NULL;
1456         field.in_handler_priv = NULL;
1457
1458         jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1459         jtag_execute_queue();
1460
1461         device = jtag_devices;
1462         while (device)
1463         {
1464                 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1465                 {
1466                         char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1467                         ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1468                         free(cbuf);
1469                         free(ir_test);
1470                         return ERROR_JTAG_INIT_FAILED;
1471                 }
1472                 chain_pos += device->ir_length;
1473                 device = device->next;
1474         }
1475
1476         if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1477         {
1478                 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1479                 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1480                 free(cbuf);
1481                 free(ir_test);
1482                 return ERROR_JTAG_INIT_FAILED;
1483         }
1484
1485         free(ir_test);
1486
1487         return ERROR_OK;
1488 }
1489
1490 int jtag_register_commands(struct command_context_s *cmd_ctx)
1491 {
1492         register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1493                 COMMAND_CONFIG, NULL);
1494         register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1495                 COMMAND_ANY, "set jtag speed (if supported) <speed>");
1496         register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1497                 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1498         register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1499                 COMMAND_CONFIG, NULL);
1500         register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1501                 COMMAND_CONFIG, NULL);
1502         register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1503                 COMMAND_CONFIG, NULL);
1504
1505         register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1506                 COMMAND_EXEC, "print current scan chain configuration");
1507
1508         register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1509                 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1510         register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1511                 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1512         register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1513                 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1514         register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
1515                 COMMAND_EXEC, "move to current endstate or [tap_state]");
1516         register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1517                 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1518         register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1519                 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1520
1521         register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1522                 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1523         return ERROR_OK;
1524 }
1525
1526 int jtag_interface_init(struct command_context_s *cmd_ctx)
1527 {
1528         if (!jtag_interface)
1529         {
1530                 /* nothing was previously specified by "interface" command */
1531                 ERROR("JTAG interface has to be specified, see \"interface\" command");
1532                 return ERROR_JTAG_INVALID_INTERFACE;
1533         }
1534
1535         if (jtag_interface->init() != ERROR_OK)
1536                 return ERROR_JTAG_INIT_FAILED;
1537
1538         jtag = jtag_interface;
1539         return ERROR_OK;
1540 }
1541
1542 int jtag_init(struct command_context_s *cmd_ctx)
1543 {
1544         int validate_tries = 0;
1545         jtag_device_t *device;
1546
1547         DEBUG("-");
1548
1549         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1550                 return ERROR_JTAG_INIT_FAILED;
1551
1552         device = jtag_devices;
1553         jtag_ir_scan_size = 0;
1554         jtag_num_devices = 0;
1555         while (device != NULL)
1556         {
1557                 jtag_ir_scan_size += device->ir_length;
1558                 jtag_num_devices++;
1559                 device = device->next;
1560         }
1561
1562         jtag_add_statemove(TAP_TLR);
1563         jtag_execute_queue();
1564
1565         /* examine chain first, as this could discover the real chain layout */
1566         if (jtag_examine_chain() != ERROR_OK)
1567         {
1568                 ERROR("trying to validate configured JTAG chain anyway...");
1569         }
1570
1571         while (jtag_validate_chain() != ERROR_OK)
1572         {
1573                 validate_tries++;
1574                 if (validate_tries > 5)
1575                 {
1576                         ERROR("Could not validate JTAG chain, exit");
1577                         return ERROR_JTAG_INVALID_INTERFACE;
1578                 }
1579                 usleep(10000);
1580         }
1581
1582         return ERROR_OK;
1583 }
1584
1585
1586 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1587 {
1588         int i;
1589
1590         /* check whether the interface is already configured */
1591         if (jtag_interface)
1592         {
1593                 WARNING("Interface already configured, ignoring");
1594                 return ERROR_OK;
1595         }
1596
1597         /* interface name is a mandatory argument */
1598         if (argc < 1 || args[0][0] == '\0')
1599         {
1600                 return ERROR_COMMAND_SYNTAX_ERROR;
1601         }
1602
1603         for (i=0; jtag_interfaces[i]; i++)
1604         {
1605                 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1606                 {
1607                         if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1608                                 exit(-1);
1609
1610                         jtag_interface = jtag_interfaces[i];
1611                         return ERROR_OK;
1612                 }
1613         }
1614
1615         /* no valid interface was found (i.e. the configuration option,
1616          * didn't match one of the compiled-in interfaces
1617          */
1618         ERROR("No valid jtag interface found (%s)", args[0]);
1619         ERROR("compiled-in jtag interfaces:");
1620         for (i = 0; jtag_interfaces[i]; i++)
1621         {
1622                 ERROR("%i: %s", i, jtag_interfaces[i]->name);
1623         }
1624
1625         return ERROR_JTAG_INVALID_INTERFACE;
1626 }
1627
1628 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1629 {
1630         jtag_device_t **last_device_p = &jtag_devices;
1631
1632         if (*last_device_p)
1633         {
1634                 while ((*last_device_p)->next)
1635                         last_device_p = &((*last_device_p)->next);
1636                 last_device_p = &((*last_device_p)->next);
1637         }
1638
1639         if (argc < 3)
1640                 return ERROR_OK;
1641
1642         *last_device_p = malloc(sizeof(jtag_device_t));
1643         (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1644
1645         (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1646         buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1647         (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1648         buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1649
1650         (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1651         (*last_device_p)->bypass = 1;
1652         buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1653
1654         (*last_device_p)->next = NULL;
1655
1656         jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1657
1658         jtag_num_devices++;
1659
1660         return ERROR_OK;
1661 }
1662
1663 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1664 {
1665         jtag_device_t *device = jtag_devices;
1666         int device_count = 0;
1667
1668         while (device)
1669         {
1670                 u32 expected, expected_mask, cur_instr;
1671                 expected = buf_get_u32(device->expected, 0, device->ir_length);
1672                 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1673                 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1674                 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);
1675                 device = device->next;
1676                 device_count++;
1677         }
1678
1679         return ERROR_OK;
1680 }
1681
1682 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1683 {
1684         if (argc >= 1)
1685         {
1686                 if (strcmp(args[0], "none") == 0)
1687                         jtag_reset_config = RESET_NONE;
1688                 else if (strcmp(args[0], "trst_only") == 0)
1689                         jtag_reset_config = RESET_HAS_TRST;
1690                 else if (strcmp(args[0], "srst_only") == 0)
1691                         jtag_reset_config = RESET_HAS_SRST;
1692                 else if (strcmp(args[0], "trst_and_srst") == 0)
1693                         jtag_reset_config = RESET_TRST_AND_SRST;
1694                 else
1695                 {
1696                         ERROR("invalid reset_config argument, defaulting to none");
1697                         jtag_reset_config = RESET_NONE;
1698                         return ERROR_INVALID_ARGUMENTS;
1699                 }
1700         }
1701
1702         if (argc >= 2)
1703         {
1704                 if (strcmp(args[1], "srst_pulls_trst") == 0)
1705                         jtag_reset_config |= RESET_SRST_PULLS_TRST;
1706                 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1707                         jtag_reset_config |= RESET_TRST_PULLS_SRST;
1708                 else if (strcmp(args[1], "combined") == 0)
1709                         jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1710                 else if (strcmp(args[1], "separate") == 0)
1711                         jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
1712                 else
1713                 {
1714                         ERROR("invalid reset_config argument, defaulting to none");
1715                         jtag_reset_config = RESET_NONE;
1716                         return ERROR_INVALID_ARGUMENTS;
1717                 }
1718         }
1719
1720         if (argc >= 3)
1721         {
1722                 if (strcmp(args[2], "trst_open_drain") == 0)
1723                         jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1724                 else if (strcmp(args[2], "trst_push_pull") == 0)
1725                         jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1726                 else
1727                 {
1728                         ERROR("invalid reset_config argument, defaulting to none");
1729                         jtag_reset_config = RESET_NONE;
1730                         return ERROR_INVALID_ARGUMENTS;
1731                 }
1732         }
1733
1734         if (argc >= 4)
1735         {
1736                 if (strcmp(args[3], "srst_push_pull") == 0)
1737                         jtag_reset_config |= RESET_SRST_PUSH_PULL;
1738                 else if (strcmp(args[3], "srst_open_drain") == 0)
1739                         jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1740                 else
1741                 {
1742                         ERROR("invalid reset_config argument, defaulting to none");
1743                         jtag_reset_config = RESET_NONE;
1744                         return ERROR_INVALID_ARGUMENTS;
1745                 }
1746         }
1747
1748         return ERROR_OK;
1749 }
1750
1751 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1752 {
1753         if (argc < 1)
1754         {
1755                 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1756                 exit(-1);
1757         }
1758         else
1759         {
1760                 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1761         }
1762
1763         return ERROR_OK;
1764 }
1765
1766 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1767 {
1768         if (argc < 1)
1769         {
1770                 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1771                 exit(-1);
1772         }
1773         else
1774         {
1775                 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1776         }
1777
1778         return ERROR_OK;
1779 }
1780
1781 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1782 {
1783         if (argc == 0)
1784                 command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);
1785
1786         if (argc > 0)
1787         {
1788                 jtag_speed = strtoul(args[0], NULL, 0);
1789                 /* this command can be called during CONFIG,
1790                  * in which case jtag isn't initialized */
1791                 if (jtag)
1792                         jtag->speed(jtag_speed);
1793         }
1794
1795         return ERROR_OK;
1796 }
1797
1798 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1799 {
1800         enum tap_state state;
1801
1802         if (argc < 1)
1803         {
1804                 return ERROR_COMMAND_SYNTAX_ERROR;
1805         }
1806         else
1807         {
1808                 for (state = 0; state < 16; state++)
1809                 {
1810                         if (strcmp(args[0], tap_state_strings[state]) == 0)
1811                         {
1812                                 jtag_add_end_state(state);
1813                                 jtag_execute_queue();
1814                         }
1815                 }
1816         }
1817         command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1818
1819         return ERROR_OK;
1820 }
1821
1822 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1823 {
1824         int trst = -1;
1825         int srst = -1;
1826
1827         if (argc < 2)
1828         {
1829                 return ERROR_COMMAND_SYNTAX_ERROR;
1830         }
1831
1832         if (args[0][0] == '1')
1833                 trst = 1;
1834         else if (args[0][0] == '0')
1835                 trst = 0;
1836         else
1837         {
1838                 return ERROR_COMMAND_SYNTAX_ERROR;
1839         }
1840
1841         if (args[1][0] == '1')
1842                 srst = 1;
1843         else if (args[1][0] == '0')
1844                 srst = 0;
1845         else
1846         {
1847                 return ERROR_COMMAND_SYNTAX_ERROR;
1848         }
1849
1850         if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1851                 return ERROR_JTAG_INIT_FAILED;
1852
1853         jtag_add_reset(trst, srst);
1854         jtag_execute_queue();
1855
1856         return ERROR_OK;
1857 }
1858
1859 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1860 {
1861         if (argc < 1)
1862         {
1863                 return ERROR_COMMAND_SYNTAX_ERROR;
1864         }
1865
1866         jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1867         jtag_execute_queue();
1868
1869         return ERROR_OK;
1870
1871 }
1872
1873 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1874 {
1875         enum tap_state state;
1876
1877         state = -1;
1878         if (argc == 1)
1879         {
1880                 for (state = 0; state < 16; state++)
1881                 {
1882                         if (strcmp(args[0], tap_state_strings[state]) == 0)
1883                         {
1884                                 break;
1885                         }
1886                 }
1887         }
1888
1889         jtag_add_statemove(state);
1890         jtag_execute_queue();
1891
1892         return ERROR_OK;
1893
1894 }
1895
1896 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1897 {
1898         int i;
1899         scan_field_t *fields;
1900
1901         if ((argc < 2) || (argc % 2))
1902         {
1903                 return ERROR_COMMAND_SYNTAX_ERROR;
1904         }
1905
1906         fields = malloc(sizeof(scan_field_t) * argc / 2);
1907
1908         for (i = 0; i < argc / 2; i++)
1909         {
1910                 int device = strtoul(args[i*2], NULL, 0);
1911                 int field_size = jtag_get_device(device)->ir_length;
1912                 fields[i].device = device;
1913                 fields[i].out_value = malloc(CEIL(field_size, 8));
1914                 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1915                 fields[i].out_mask = NULL;
1916                 fields[i].in_value = NULL;
1917                 fields[i].in_check_mask = NULL;
1918                 fields[i].in_handler = NULL;
1919                 fields[i].in_handler_priv = NULL;
1920         }
1921
1922         jtag_add_ir_scan(argc / 2, fields, -1);
1923         jtag_execute_queue();
1924
1925         for (i = 0; i < argc / 2; i++)
1926                 free(fields[i].out_value);
1927
1928         free (fields);
1929
1930         return ERROR_OK;
1931 }
1932
1933 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1934 {
1935         scan_field_t *fields;
1936         int num_fields = 0;
1937         int field_count = 0;
1938         var_t *var;
1939         int i, j;
1940
1941         if ((argc < 2) || (argc % 2))
1942         {
1943                 return ERROR_COMMAND_SYNTAX_ERROR;
1944         }
1945
1946         for (i = 0; i < argc; i+=2)
1947         {
1948                 var = get_var_by_namenum(args[i+1]);
1949                 if (var)
1950                 {
1951                         num_fields += var->num_fields;
1952                 }
1953                 else
1954                 {
1955                         command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1956                         return ERROR_OK;
1957                 }
1958         }
1959
1960         fields = malloc(sizeof(scan_field_t) * num_fields);
1961
1962         for (i = 0; i < argc; i+=2)
1963         {
1964                 var = get_var_by_namenum(args[i+1]);
1965
1966                 for (j = 0; j < var->num_fields; j++)
1967                 {
1968                         fields[field_count].device = strtol(args[i], NULL, 0);
1969                         fields[field_count].num_bits = var->fields[j].num_bits;
1970                         fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1971                         buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1972                         fields[field_count].out_mask = NULL;
1973                         fields[field_count].in_value = fields[field_count].out_value;
1974                         fields[field_count].in_check_mask = NULL;
1975                         fields[field_count].in_check_value = NULL;
1976                         fields[field_count].in_handler = field_le_to_host;
1977                         fields[field_count++].in_handler_priv = &(var->fields[j]);
1978                 }
1979         }
1980
1981         jtag_add_dr_scan(num_fields, fields, -1);
1982         jtag_execute_queue();
1983
1984         for (i = 0; i < argc / 2; i++)
1985                 free(fields[i].out_value);
1986
1987         free(fields);
1988
1989         return ERROR_OK;
1990 }
1991
1992 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1993 {
1994         if (argc == 1)
1995         {
1996                 if (strcmp(args[0], "enable") == 0)
1997                 {
1998                         jtag_verify_capture_ir = 1;
1999                 }
2000                 else if (strcmp(args[0], "disable") == 0)
2001                 {
2002                         jtag_verify_capture_ir = 0;
2003                 } else
2004                 {
2005                         return ERROR_COMMAND_SYNTAX_ERROR;
2006                 }
2007         } else if (argc != 0)
2008         {
2009                 return ERROR_COMMAND_SYNTAX_ERROR;
2010         }
2011
2012         command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2013
2014         return ERROR_OK;
2015 }