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   1 /***************************************************************************
   2  *   Copyright (C) 2004, 2006 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 #if IS_CYGWIN == 1
  25 #include "windows.h"
  26 #undef ERROR
  27 #endif
  28
  29 #include "replacements.h"
  30
  31 /* project specific includes */
  32 #include "log.h"
  33 #include "types.h"
  34 #include "jtag.h"
  35 #include "configuration.h"
  36 #include "time_support.h"
  37
  38 /* system includes */
  39 #include <string.h>
  40 #include <stdlib.h>
  41 #include <unistd.h>
  42
  43 /* FT2232 access library includes */
  44 #if BUILD_FT2232_FTD2XX == 1
  45 #include <ftd2xx.h>
  46 #elif BUILD_FT2232_LIBFTDI == 1
  47 #include <ftdi.h>
  48 #endif
  49
  50 #include <sys/time.h>
  51 #include <time.h>
  52
  53 /* enable this to debug io latency
  54  */
  55 #if 0
  56 #define _DEBUG_USB_IO_
  57 #endif
  58
  59 /* enable this to debug communication
  60  */
  61 #if 0
  62 #define _DEBUG_USB_COMMS_
  63 #endif
  64
  65 int ft2232_execute_queue(void);
  66
  67 int ft2232_speed(int speed);
  68 int ft2232_register_commands(struct command_context_s *cmd_ctx);
  69 int ft2232_init(void);
  70 int ft2232_quit(void);
  71
  72 int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76
  77 char *ft2232_device_desc = NULL;
  78 char *ft2232_serial = NULL;
  79 char *ft2232_layout = NULL;
  80
  81 #define MAX_USB_IDS     8
  82 /* vid = pid = 0 marks the end of the list */
  83 static u16 ft2232_vid[MAX_USB_IDS+1] = { 0x0403, 0 };
  84 static u16 ft2232_pid[MAX_USB_IDS+1] = { 0x6010, 0 };
  85
  86 typedef struct ft2232_layout_s
  87 {
  88         char* name;
  89         int(*init)(void);
  90         void(*reset)(int trst, int srst);
  91         void(*blink)(void);
  92 } ft2232_layout_t;
  93
  94 /* init procedures for supported layouts */
  95 int usbjtag_init(void);
  96 int jtagkey_init(void);
  97 int olimex_jtag_init(void);
  98 int m5960_init(void);
  99 int turtle_init(void);
 100
 101 /* reset procedures for supported layouts */
 102 void usbjtag_reset(int trst, int srst);
 103 void jtagkey_reset(int trst, int srst);
 104 void olimex_jtag_reset(int trst, int srst);
 105 void m5960_reset(int trst, int srst);
 106 void turtle_reset(int trst, int srst);
 107
 108 /* blink procedures for layouts that support a blinking led */
 109 void olimex_jtag_blink(void);
 110 void turtle_jtag_blink(void);
 111
 112 ft2232_layout_t ft2232_layouts[] =
 113 {
 114         {"usbjtag", usbjtag_init, usbjtag_reset, NULL},
 115         {"jtagkey", jtagkey_init, jtagkey_reset, NULL},
 116         {"jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL},
 117         {"oocdlink", jtagkey_init, jtagkey_reset, NULL},
 118         {"signalyzer", usbjtag_init, usbjtag_reset, NULL},
 119         {"evb_lm3s811", usbjtag_init, usbjtag_reset, NULL},
 120         {"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink},
 121         {"m5960", m5960_init, m5960_reset, NULL},
 122         {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
 123         {NULL, NULL, NULL},
 124 };
 125
 126 static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;
 127
 128 static ft2232_layout_t *layout;
 129 static u8 low_output = 0x0;
 130 static u8 low_direction = 0x0;
 131 static u8 high_output = 0x0;
 132 static u8 high_direction = 0x0;
 133
 134 #if BUILD_FT2232_FTD2XX == 1
 135 static FT_HANDLE ftdih = NULL;
 136 #elif BUILD_FT2232_LIBFTDI == 1
 137 static struct ftdi_context ftdic;
 138 #endif
 139
 140 static u8 *ft2232_buffer = NULL;
 141 static int ft2232_buffer_size = 0;
 142 static int ft2232_read_pointer = 0;
 143 static int ft2232_expect_read = 0;
 144 #define FT2232_BUFFER_SIZE      131072
 145 #define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
 146 #define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
 147
 148 jtag_interface_t ft2232_interface =
 149 {
 150
 151         .name = "ft2232",
 152
 153         .execute_queue = ft2232_execute_queue,
 154
 155         .support_pathmove = 1,
 156
 157         .speed = ft2232_speed,
 158         .register_commands = ft2232_register_commands,
 159         .init = ft2232_init,
 160         .quit = ft2232_quit,
 161 };
 162
 163 int ft2232_write(u8 *buf, int size, u32* bytes_written)
 164 {
 165 #if BUILD_FT2232_FTD2XX == 1
 166         FT_STATUS status;
 167         DWORD dw_bytes_written;
 168         if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
 169         {
 170                 *bytes_written = dw_bytes_written;
 171                 ERROR("FT_Write returned: %lu", status);
 172                 return ERROR_JTAG_DEVICE_ERROR;
 173         }
 174         else
 175         {
 176                 *bytes_written = dw_bytes_written;
 177                 return ERROR_OK;
 178         }
 179 #elif BUILD_FT2232_LIBFTDI == 1
 180         int retval;
 181         if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
 182         {
 183                 *bytes_written = 0;
 184                 ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
 185                 return ERROR_JTAG_DEVICE_ERROR;
 186         }
 187         else
 188         {
 189                 *bytes_written = retval;
 190                 return ERROR_OK;
 191         }
 192 #endif
 193 }
 194
 195 int ft2232_read(u8* buf, int size, u32* bytes_read)
 196 {
 197 #if BUILD_FT2232_FTD2XX == 1
 198         DWORD dw_bytes_read;
 199         FT_STATUS status;
 200         int timeout = 5;
 201         *bytes_read = 0;
 202
 203         while ((*bytes_read < size) && timeout--)
 204         {
 205                 if ((status = FT_Read(ftdih, buf, size, &dw_bytes_read)) != FT_OK)
 206                 {
 207                         *bytes_read = 0;
 208                         ERROR("FT_Read returned: %lu", status);
 209                         return ERROR_JTAG_DEVICE_ERROR;
 210                 }
 211                 *bytes_read += dw_bytes_read;
 212         }
 213 #elif BUILD_FT2232_LIBFTDI == 1
 214         int retval;
 215         int timeout = 100;
 216         *bytes_read = 0;
 217
 218         while ((*bytes_read < size) && timeout--)
 219         {
 220                 if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
 221                 {
 222                         *bytes_read = 0;
 223                         ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
 224                         return ERROR_JTAG_DEVICE_ERROR;
 225                 }
 226                 *bytes_read += retval;
 227         }
 228 #endif
 229
 230         if (*bytes_read < size)
 231         {
 232                 ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read, size);
 233                 return ERROR_JTAG_DEVICE_ERROR;
 234         }
 235
 236         return ERROR_OK;
 237 }
 238
 239 int ft2232_speed(int speed)
 240 {
 241         u8 buf[3];
 242         int retval;
 243         u32 bytes_written;
 244
 245         buf[0] = 0x86; /* command "set divisor" */
 246         buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=1.5MHz, ...*/
 247         buf[2] = (speed >> 8) & 0xff; /* valueH */
 248
 249         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
 250         if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
 251         {
 252                 ERROR("couldn't set FT2232 TCK speed");
 253                 return retval;
 254         }
 255
 256         return ERROR_OK;
 257 }
 258
 259 int ft2232_register_commands(struct command_context_s *cmd_ctx)
 260 {
 261         register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
 262                 COMMAND_CONFIG, NULL);
 263         register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
 264                 COMMAND_CONFIG, NULL);
 265         register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
 266                 COMMAND_CONFIG, NULL);
 267         register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
 268                                          COMMAND_CONFIG, NULL);
 269         return ERROR_OK;
 270 }
 271
 272 void ft2232_end_state(state)
 273 {
 274         if (tap_move_map[state] != -1)
 275                 end_state = state;
 276         else
 277         {
 278                 ERROR("BUG: %i is not a valid end state", state);
 279                 exit(-1);
 280         }
 281 }
 282
 283 void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
 284 {
 285         int num_bytes = ((scan_size + 7) / 8);
 286         int bits_left = scan_size;
 287         int cur_byte = 0;
 288
 289         while(num_bytes-- > 1)
 290         {
 291                 buffer[cur_byte] = BUFFER_READ;
 292                 cur_byte++;
 293                 bits_left -= 8;
 294         }
 295
 296         buffer[cur_byte] = 0x0;
 297
 298         if (bits_left > 1)
 299         {
 300                 buffer[cur_byte] = BUFFER_READ >> 1;
 301         }
 302
 303         buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left);
 304
 305 }
 306
 307 void ft2232_debug_dump_buffer(void)
 308 {
 309         int i;
 310         char line[256];
 311         char *line_p = line;
 312
 313         for (i = 0; i < ft2232_buffer_size; i++)
 314         {
 315                 line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
 316                 if (i % 16 == 15)
 317                 {
 318                         DEBUG("%s", line);
 319                         line_p = line;
 320                 }
 321         }
 322
 323         if (line_p != line)
 324                 DEBUG("%s", line);
 325 }
 326
 327 int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last)
 328 {
 329         jtag_command_t *cmd;
 330         u8 *buffer;
 331         int scan_size;
 332         enum scan_type type;
 333         int retval;
 334         u32 bytes_written;
 335         u32 bytes_read;
 336
 337 #ifdef _DEBUG_USB_IO_
 338         struct timeval start, inter, inter2, end;
 339         struct timeval d_inter, d_inter2, d_end;
 340 #endif
 341
 342 #ifdef _DEBUG_USB_COMMS_
 343         DEBUG("write buffer (size %i):", ft2232_buffer_size);
 344         ft2232_debug_dump_buffer();
 345 #endif
 346
 347 #ifdef _DEBUG_USB_IO_
 348         gettimeofday(&start, NULL);
 349 #endif
 350
 351         if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
 352         {
 353                 ERROR("couldn't write MPSSE commands to FT2232");
 354                 exit(-1);
 355         }
 356
 357 #ifdef _DEBUG_USB_IO_
 358         gettimeofday(&inter, NULL);
 359 #endif
 360
 361         if (ft2232_expect_read)
 362         {
 363                 int timeout = 100;
 364                 ft2232_buffer_size = 0;
 365
 366 #ifdef _DEBUG_USB_IO_
 367                 gettimeofday(&inter2, NULL);
 368 #endif
 369
 370                 if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
 371                 {
 372                         ERROR("couldn't read from FT2232");
 373                         exit(-1);
 374                 }
 375
 376 #ifdef _DEBUG_USB_IO_
 377                 gettimeofday(&end, NULL);
 378
 379                 timeval_subtract(&d_inter, &inter, &start);
 380                 timeval_subtract(&d_inter2, &inter2, &start);
 381                 timeval_subtract(&d_end, &end, &start);
 382
 383                 INFO("inter: %i.%i, inter2: %i.%i end: %i.%i", d_inter.tv_sec, d_inter.tv_usec, d_inter2.tv_sec, d_inter2.tv_usec, d_end.tv_sec, d_end.tv_usec);
 384 #endif
 385
 386
 387                 ft2232_buffer_size = bytes_read;
 388
 389                 if (ft2232_expect_read != ft2232_buffer_size)
 390                 {
 391                         ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout);
 392                         ft2232_debug_dump_buffer();
 393
 394                         exit(-1);
 395                 }
 396
 397 #ifdef _DEBUG_USB_COMMS_
 398                 DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size);
 399                 ft2232_debug_dump_buffer();
 400 #endif
 401         }
 402
 403         ft2232_expect_read = 0;
 404         ft2232_read_pointer = 0;
 405
 406         cmd = first;
 407         while (cmd != last)
 408         {
 409                 switch (cmd->type)
 410                 {
 411                         case JTAG_SCAN:
 412                                 type = jtag_scan_type(cmd->cmd.scan);
 413                                 if (type != SCAN_OUT)
 414                                 {
 415                                         scan_size = jtag_scan_size(cmd->cmd.scan);
 416                                         buffer = calloc(CEIL(scan_size, 8), 1);
 417                                         ft2232_read_scan(type, buffer, scan_size);
 418                                         jtag_read_buffer(buffer, cmd->cmd.scan);
 419                                         free(buffer);
 420                                 }
 421                                 break;
 422                         default:
 423                                 break;
 424                 }
 425                 cmd = cmd->next;
 426         }
 427
 428         ft2232_buffer_size = 0;
 429
 430         return ERROR_OK;
 431 }
 432
 433 void ft2232_add_pathmove(pathmove_command_t *cmd)
 434 {
 435         int num_states = cmd->num_states;
 436         u8 tms_byte;
 437         int state_count;
 438
 439         state_count = 0;
 440         while (num_states)
 441         {
 442                 tms_byte = 0x0;
 443                 int bit_count = 0;
 444
 445                 /* command "Clock Data to TMS/CS Pin (no Read)" */
 446                 BUFFER_ADD = 0x4b;
 447                 /* number of states remaining */
 448                 BUFFER_ADD = (num_states % 7) - 1;
 449
 450                 while (num_states % 7)
 451                 {
 452                         if (tap_transitions[cur_state].low == cmd->path[state_count])
 453                                 buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
 454                         else if (tap_transitions[cur_state].high == cmd->path[state_count])
 455                                 buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
 456                         else
 457                         {
 458                                 ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
 459                                 exit(-1);
 460                         }
 461
 462                         cur_state = cmd->path[state_count];
 463                         state_count++;
 464                         num_states--;
 465                 }
 466
 467                 BUFFER_ADD = tms_byte;
 468         }
 469
 470         end_state = cur_state;
 471 }
 472
 473 void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
 474 {
 475         int num_bytes = (scan_size + 7) / 8;
 476         int bits_left = scan_size;
 477         int cur_byte = 0;
 478         int last_bit;
 479
 480         if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI))))
 481         {
 482                 /* command "Clock Data to TMS/CS Pin (no Read)" */
 483                 BUFFER_ADD = 0x4b;
 484                 /* scan 7 bit */
 485                 BUFFER_ADD = 0x6;
 486                 /* TMS data bits */
 487                 if (ir_scan)
 488                 {
 489                         BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
 490                         cur_state = TAP_SI;
 491                 }
 492                 else
 493                 {
 494                         BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
 495                         cur_state = TAP_SD;
 496                 }
 497                 //DEBUG("added TMS scan (no read)");
 498         }
 499
 500         /* add command for complete bytes */
 501         while (num_bytes > 1)
 502         {
 503                 int thisrun_bytes;
 504                 if (type == SCAN_IO)
 505                 {
 506                         /* Clock Data Bytes In and Out LSB First */
 507                         BUFFER_ADD = 0x39;
 508                         //DEBUG("added TDI bytes (io %i)", num_bytes);
 509                 }
 510                 else if (type == SCAN_OUT)
 511                 {
 512                         /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
 513                         BUFFER_ADD = 0x19;
 514                         //DEBUG("added TDI bytes (o)");
 515                 }
 516                 else if (type == SCAN_IN)
 517                 {
 518                         /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
 519                         BUFFER_ADD = 0x28;
 520                         //DEBUG("added TDI bytes (i %i)", num_bytes);
 521                 }
 522                 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
 523                 num_bytes -= thisrun_bytes;
 524                 BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
 525                 BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff;
 526                 if (type != SCAN_IN)
 527                 {
 528                         /* add complete bytes */
 529                         while(thisrun_bytes-- > 0)
 530                         {
 531                                 BUFFER_ADD = buffer[cur_byte];
 532                                 cur_byte++;
 533                                 bits_left -= 8;
 534                         }
 535                 }
 536                 else /* (type == SCAN_IN) */
 537                 {
 538                         bits_left -= 8 * (thisrun_bytes);
 539                 }
 540         }
 541
 542         /* the most signifcant bit is scanned during TAP movement */
 543         if (type != SCAN_IN)
 544                 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
 545         else
 546                 last_bit = 0;
 547
 548         /* process remaining bits but the last one */
 549         if (bits_left > 1)
 550         {
 551                 if (type == SCAN_IO)
 552                 {
 553                         /* Clock Data Bits In and Out LSB First */
 554                         BUFFER_ADD = 0x3b;
 555                         //DEBUG("added TDI bits (io) %i", bits_left - 1);
 556                 }
 557                 else if (type == SCAN_OUT)
 558                 {
 559                         /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
 560                         BUFFER_ADD = 0x1b;
 561                         //DEBUG("added TDI bits (o)");
 562                 }
 563                 else if (type == SCAN_IN)
 564                 {
 565                         /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
 566                         BUFFER_ADD = 0x2a;
 567                         //DEBUG("added TDI bits (i %i)", bits_left - 1);
 568                 }
 569                 BUFFER_ADD = bits_left - 2;
 570                 if (type != SCAN_IN)
 571                         BUFFER_ADD = buffer[cur_byte];
 572         }
 573
 574         if ((ir_scan && (end_state == TAP_SI)) ||
 575                 (!ir_scan && (end_state == TAP_SD)))
 576         {
 577                 if (type == SCAN_IO)
 578                 {
 579                         /* Clock Data Bits In and Out LSB First */
 580                         BUFFER_ADD = 0x3b;
 581                         //DEBUG("added TDI bits (io) %i", bits_left - 1);
 582                 }
 583                 else if (type == SCAN_OUT)
 584                 {
 585                         /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
 586                         BUFFER_ADD = 0x1b;
 587                         //DEBUG("added TDI bits (o)");
 588                 }
 589                 else if (type == SCAN_IN)
 590                 {
 591                         /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
 592                         BUFFER_ADD = 0x2a;
 593                         //DEBUG("added TDI bits (i %i)", bits_left - 1);
 594                 }
 595                 BUFFER_ADD = 0x0;
 596                 BUFFER_ADD = last_bit;
 597         }
 598         else
 599         {
 600                 /* move from Shift-IR/DR to end state */
 601                 if (type != SCAN_OUT)
 602                 {
 603                         /* Clock Data to TMS/CS Pin with Read */
 604                         BUFFER_ADD = 0x6b;
 605                         //DEBUG("added TMS scan (read)");
 606                 }
 607                 else
 608                 {
 609                         /* Clock Data to TMS/CS Pin (no Read) */
 610                         BUFFER_ADD = 0x4b;
 611                         //DEBUG("added TMS scan (no read)");
 612                 }
 613                 BUFFER_ADD = 0x6;
 614                 BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
 615                 cur_state = end_state;
 616         }
 617 }
 618
 619 int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int scan_size)
 620 {
 621         int num_bytes = (scan_size + 7) / 8;
 622         int bits_left = scan_size;
 623         int cur_byte = 0;
 624         int last_bit;
 625         u8 *receive_buffer = malloc(CEIL(scan_size, 8));
 626         u8 *receive_pointer = receive_buffer;
 627         u32 bytes_written;
 628         u32 bytes_read;
 629         int retval;
 630         int thisrun_read = 0;
 631
 632         if (cmd->ir_scan)
 633         {
 634                 ERROR("BUG: large IR scans are not supported");
 635                 exit(-1);
 636         }
 637
 638         if (cur_state != TAP_SD)
 639         {
 640                 /* command "Clock Data to TMS/CS Pin (no Read)" */
 641                 BUFFER_ADD = 0x4b;
 642                 /* scan 7 bit */
 643                 BUFFER_ADD = 0x6;
 644                 /* TMS data bits */
 645                 BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
 646                 cur_state = TAP_SD;
 647         }
 648
 649         if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
 650         {
 651                 ERROR("couldn't write MPSSE commands to FT2232");
 652                 exit(-1);
 653         }
 654         DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
 655         ft2232_buffer_size = 0;
 656
 657         /* add command for complete bytes */
 658         while (num_bytes > 1)
 659         {
 660                 int thisrun_bytes;
 661
 662                 if (type == SCAN_IO)
 663                 {
 664                         /* Clock Data Bytes In and Out LSB First */
 665                         BUFFER_ADD = 0x39;
 666                         //DEBUG("added TDI bytes (io %i)", num_bytes);
 667                 }
 668                 else if (type == SCAN_OUT)
 669                 {
 670                         /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
 671                         BUFFER_ADD = 0x19;
 672                         //DEBUG("added TDI bytes (o)");
 673                 }
 674                 else if (type == SCAN_IN)
 675                 {
 676                         /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
 677                         BUFFER_ADD = 0x28;
 678                         //DEBUG("added TDI bytes (i %i)", num_bytes);
 679                 }
 680                 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
 681                 thisrun_read = thisrun_bytes;
 682                 num_bytes -= thisrun_bytes;
 683                 BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
 684                 BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff;
 685                 if (type != SCAN_IN)
 686                 {
 687                         /* add complete bytes */
 688                         while(thisrun_bytes-- > 0)
 689                         {
 690                                 BUFFER_ADD = buffer[cur_byte];
 691                                 cur_byte++;
 692                                 bits_left -= 8;
 693                         }
 694                 }
 695                 else /* (type == SCAN_IN) */
 696                 {
 697                         bits_left -= 8 * (thisrun_bytes);
 698                 }
 699
 700                 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
 701                 {
 702                         ERROR("couldn't write MPSSE commands to FT2232");
 703                         exit(-1);
 704                 }
 705                 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
 706                 ft2232_buffer_size = 0;
 707
 708                 if (type != SCAN_OUT)
 709                 {
 710                         if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
 711                         {
 712                                 ERROR("couldn't read from FT2232");
 713                                 exit(-1);
 714                         }
 715                         DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
 716                         receive_pointer += bytes_read;
 717                 }
 718         }
 719
 720         thisrun_read = 0;
 721
 722         /* the most signifcant bit is scanned during TAP movement */
 723         if (type != SCAN_IN)
 724                 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
 725         else
 726                 last_bit = 0;
 727
 728         /* process remaining bits but the last one */
 729         if (bits_left > 1)
 730         {
 731                 if (type == SCAN_IO)
 732                 {
 733                         /* Clock Data Bits In and Out LSB First */
 734                         BUFFER_ADD = 0x3b;
 735                         //DEBUG("added TDI bits (io) %i", bits_left - 1);
 736                 }
 737                 else if (type == SCAN_OUT)
 738                 {
 739                         /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
 740                         BUFFER_ADD = 0x1b;
 741                         //DEBUG("added TDI bits (o)");
 742                 }
 743                 else if (type == SCAN_IN)
 744                 {
 745                         /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
 746                         BUFFER_ADD = 0x2a;
 747                         //DEBUG("added TDI bits (i %i)", bits_left - 1);
 748                 }
 749                 BUFFER_ADD = bits_left - 2;
 750                 if (type != SCAN_IN)
 751                         BUFFER_ADD = buffer[cur_byte];
 752
 753                 if (type != SCAN_OUT)
 754                         thisrun_read += 2;
 755         }
 756
 757         if (end_state == TAP_SD)
 758         {
 759                 if (type == SCAN_IO)
 760                 {
 761                         /* Clock Data Bits In and Out LSB First */
 762                         BUFFER_ADD = 0x3b;
 763                         //DEBUG("added TDI bits (io) %i", bits_left - 1);
 764                 }
 765                 else if (type == SCAN_OUT)
 766                 {
 767                         /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
 768                         BUFFER_ADD = 0x1b;
 769                         //DEBUG("added TDI bits (o)");
 770                 }
 771                 else if (type == SCAN_IN)
 772                 {
 773                         /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
 774                         BUFFER_ADD = 0x2a;
 775                         //DEBUG("added TDI bits (i %i)", bits_left - 1);
 776                 }
 777                 BUFFER_ADD = 0x0;
 778                 BUFFER_ADD = last_bit;
 779         }
 780         else
 781         {
 782                 /* move from Shift-IR/DR to end state */
 783                 if (type != SCAN_OUT)
 784                 {
 785                         /* Clock Data to TMS/CS Pin with Read */
 786                         BUFFER_ADD = 0x6b;
 787                         //DEBUG("added TMS scan (read)");
 788                 }
 789                 else
 790                 {
 791                         /* Clock Data to TMS/CS Pin (no Read) */
 792                         BUFFER_ADD = 0x4b;
 793                         //DEBUG("added TMS scan (no read)");
 794                 }
 795                 BUFFER_ADD = 0x6;
 796                 BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
 797                 cur_state = end_state;
 798         }
 799
 800         if (type != SCAN_OUT)
 801                 thisrun_read += 1;
 802
 803         if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
 804         {
 805                 ERROR("couldn't write MPSSE commands to FT2232");
 806                 exit(-1);
 807         }
 808         DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
 809         ft2232_buffer_size = 0;
 810
 811         if (type != SCAN_OUT)
 812         {
 813                 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
 814                 {
 815                         ERROR("couldn't read from FT2232");
 816                         exit(-1);
 817                 }
 818                 DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
 819                 receive_pointer += bytes_read;
 820         }
 821
 822         return ERROR_OK;
 823 }
 824
 825 int ft2232_predict_scan_out(int scan_size, enum scan_type type)
 826 {
 827         int predicted_size = 3;
 828         int num_bytes = (scan_size - 1) / 8;
 829
 830         if (cur_state != TAP_SD)
 831                 predicted_size += 3;
 832
 833         if (type == SCAN_IN)    /* only from device to host */
 834         {
 835                 /* complete bytes */
 836                 predicted_size += (CEIL(num_bytes, 65536)) * 3;
 837                 /* remaining bits - 1 (up to 7) */
 838                 predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
 839         }
 840         else                                    /* host to device, or bidirectional */
 841         {
 842                 /* complete bytes */
 843                 predicted_size += num_bytes + (CEIL(num_bytes, 65536)) * 3;
 844                 /* remaining bits -1 (up to 7) */
 845                 predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
 846         }
 847
 848         return predicted_size;
 849 }
 850
 851 int ft2232_predict_scan_in(int scan_size, enum scan_type type)
 852 {
 853         int predicted_size = 0;
 854
 855         if (type != SCAN_OUT)
 856         {
 857                 /* complete bytes */
 858                 predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
 859                 /* remaining bits - 1 */
 860                 predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
 861                 /* last bit (from TMS scan) */
 862                 predicted_size += 1;
 863         }
 864
 865         //DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size);
 866
 867         return predicted_size;
 868 }
 869
 870 void usbjtag_reset(int trst, int srst)
 871 {
 872         if (trst == 1)
 873         {
 874                 cur_state = TAP_TLR;
 875                 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
 876                         low_direction |= nTRSTnOE;      /* switch to output pin (output is low) */
 877                 else
 878                         low_output &= ~nTRST;   /* switch output low */
 879         }
 880         else if (trst == 0)
 881         {
 882                 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
 883                         low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
 884                 else
 885                         low_output |= nTRST; /* switch output high */
 886         }
 887
 888         if (srst == 1)
 889         {
 890                 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
 891                         low_output &= ~nSRST;   /* switch output low */
 892                 else
 893                         low_direction |= nSRSTnOE;      /* switch to output pin (output is low) */
 894         }
 895         else if (srst == 0)
 896         {
 897                 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
 898                         low_output |= nSRST;    /* switch output high */
 899                 else
 900                         low_direction &= ~nSRSTnOE;     /* switch to input pin (high-Z) */
 901         }
 902
 903         /* command "set data bits low byte" */
 904         BUFFER_ADD = 0x80;
 905         BUFFER_ADD = low_output;
 906         BUFFER_ADD = low_direction;
 907
 908 }
 909
 910 void jtagkey_reset(int trst, int srst)
 911 {
 912         if (trst == 1)
 913         {
 914                 cur_state = TAP_TLR;
 915                 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
 916                         high_output &= ~nTRSTnOE;
 917                 else
 918                         high_output &= ~nTRST;
 919         }
 920         else if (trst == 0)
 921         {
 922                 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
 923                         high_output |= nTRSTnOE;
 924                 else
 925                         high_output |= nTRST;
 926         }
 927
 928         if (srst == 1)
 929         {
 930                 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
 931                         high_output &= ~nSRST;
 932                 else
 933                         high_output &= ~nSRSTnOE;
 934         }
 935         else if (srst == 0)
 936         {
 937                 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
 938                         high_output |= nSRST;
 939                 else
 940                         high_output |= nSRSTnOE;
 941         }
 942
 943         /* command "set data bits high byte" */
 944         BUFFER_ADD = 0x82;
 945         BUFFER_ADD = high_output;
 946         BUFFER_ADD = high_direction;
 947         DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
 948 }
 949
 950 void olimex_jtag_reset(int trst, int srst)
 951 {
 952         if (trst == 1)
 953         {
 954                 cur_state = TAP_TLR;
 955                 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
 956                         high_output &= ~nTRSTnOE;
 957                 else
 958                         high_output &= ~nTRST;
 959         }
 960         else if (trst == 0)
 961         {
 962                 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
 963                         high_output |= nTRSTnOE;
 964                 else
 965                         high_output |= nTRST;
 966         }
 967
 968     if (srst == 1)
 969     {
 970         high_output |= nSRST;
 971     }
 972     else if (srst == 0)
 973     {
 974         high_output &= ~nSRST;
 975     }
 976
 977     /* command "set data bits high byte" */
 978     BUFFER_ADD = 0x82;
 979     BUFFER_ADD = high_output;
 980     BUFFER_ADD = high_direction;
 981     DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
 982 }
 983
 984 void m5960_reset(int trst, int srst)
 985 {
 986         if (trst == 1)
 987         {
 988                 cur_state = TAP_TLR;
 989                 low_output &= ~nTRST;
 990         }
 991         else if (trst == 0)
 992         {
 993                 low_output |= nTRST;
 994         }
 995
 996     if (srst == 1)
 997     {
 998         low_output |= nSRST;
 999     }
1000     else if (srst == 0)
1001     {
1002         low_output &= ~nSRST;
1003     }
1004
1005     /* command "set data bits low byte" */
1006     BUFFER_ADD = 0x80;
1007     BUFFER_ADD = low_output;
1008     BUFFER_ADD = low_direction;
1009     DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
1010 }
1011
1012 void turtle_reset(int trst, int srst)
1013 {
1014   trst = trst;
1015
1016         if (srst == 1)
1017         {
1018         low_output |= nSRST;
1019         }
1020         else if (srst == 0)
1021         {
1022                 low_output &= ~nSRST;
1023         }
1024
1025         /* command "set data bits high byte" */
1026         BUFFER_ADD = 0x80;
1027         BUFFER_ADD = low_output;
1028         BUFFER_ADD = low_direction;
1029         DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
1030 }
1031
1032 int ft2232_execute_queue()
1033 {
1034         jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
1035         jtag_command_t *first_unsent = cmd;     /* next command that has to be sent */
1036         u8 *buffer;
1037         int scan_size;  /* size of IR or DR scan */
1038         enum scan_type type;
1039         int i;
1040         int predicted_size = 0;
1041         int require_send = 0;
1042
1043         ft2232_buffer_size = 0;
1044         ft2232_expect_read = 0;
1045
1046         /* blink, if the current layout has that feature */
1047         if (layout->blink)
1048                 layout->blink();
1049
1050         while (cmd)
1051         {
1052                 switch(cmd->type)
1053                 {
1054                         case JTAG_END_STATE:
1055                                 if (cmd->cmd.end_state->end_state != -1)
1056                                         ft2232_end_state(cmd->cmd.end_state->end_state);
1057                                 break;
1058                         case JTAG_RESET:
1059                                 /* only send the maximum buffer size that FT2232C can handle */
1060                                 predicted_size = 3;
1061                                 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1062                                 {
1063                                         ft2232_send_and_recv(first_unsent, cmd);
1064                                         require_send = 0;
1065                                         first_unsent = cmd;
1066                                 }
1067
1068                                 layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1069                                 require_send = 1;
1070
1071 #ifdef _DEBUG_JTAG_IO_
1072                                 DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1073 #endif
1074                                 break;
1075                         case JTAG_RUNTEST:
1076                                 /* only send the maximum buffer size that FT2232C can handle */
1077                                 predicted_size = 0;
1078                                 if (cur_state != TAP_RTI)
1079                                         predicted_size += 3;
1080                                 predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
1081                                 if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_RTI))
1082                                         predicted_size += 3;
1083                                 if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
1084                                         predicted_size += 3;
1085                                 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1086                                 {
1087                                         ft2232_send_and_recv(first_unsent, cmd);
1088                                         require_send = 0;
1089                                         first_unsent = cmd;
1090                                 }
1091                                 if (cur_state != TAP_RTI)
1092                                 {
1093                                         /* command "Clock Data to TMS/CS Pin (no Read)" */
1094                                         BUFFER_ADD = 0x4b;
1095                                         /* scan 7 bit */
1096                                         BUFFER_ADD = 0x6;
1097                                         /* TMS data bits */
1098                                         BUFFER_ADD = TAP_MOVE(cur_state, TAP_RTI);
1099                                         cur_state = TAP_RTI;
1100                                         require_send = 1;
1101                                 }
1102                                 i = cmd->cmd.runtest->num_cycles;
1103                                 while (i > 0)
1104                                 {
1105                                         /* command "Clock Data to TMS/CS Pin (no Read)" */
1106                                         BUFFER_ADD = 0x4b;
1107                                         /* scan 7 bit */
1108                                         BUFFER_ADD = (i > 7) ? 6 : (i - 1);
1109                                         /* TMS data bits */
1110                                         BUFFER_ADD = 0x0;
1111                                         cur_state = TAP_RTI;
1112                                         i -= (i > 7) ? 7 : i;
1113                                         //DEBUG("added TMS scan (no read)");
1114                                 }
1115                                 if (cmd->cmd.runtest->end_state != -1)
1116                                         ft2232_end_state(cmd->cmd.runtest->end_state);
1117                                 if (cur_state != end_state)
1118                                 {
1119                                         /* command "Clock Data to TMS/CS Pin (no Read)" */
1120                                         BUFFER_ADD = 0x4b;
1121                                         /* scan 7 bit */
1122                                         BUFFER_ADD = 0x6;
1123                                         /* TMS data bits */
1124                                         BUFFER_ADD = TAP_MOVE(cur_state, end_state);
1125                                         cur_state = end_state;
1126                                         //DEBUG("added TMS scan (no read)");
1127                                 }
1128                                 require_send = 1;
1129 #ifdef _DEBUG_JTAG_IO_
1130                                 DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state);
1131 #endif
1132                                 break;
1133                         case JTAG_STATEMOVE:
1134                                 /* only send the maximum buffer size that FT2232C can handle */
1135                                 predicted_size = 3;
1136                                 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1137                                 {
1138                                         ft2232_send_and_recv(first_unsent, cmd);
1139                                         require_send = 0;
1140                                         first_unsent = cmd;
1141                                 }
1142                                 if (cmd->cmd.statemove->end_state != -1)
1143                                         ft2232_end_state(cmd->cmd.statemove->end_state);
1144                                 /* command "Clock Data to TMS/CS Pin (no Read)" */
1145                                 BUFFER_ADD = 0x4b;
1146                                 /* scan 7 bit */
1147                                 BUFFER_ADD = 0x6;
1148                                 /* TMS data bits */
1149                                 BUFFER_ADD = TAP_MOVE(cur_state, end_state);
1150                                 //DEBUG("added TMS scan (no read)");
1151                                 cur_state = end_state;
1152                                 require_send = 1;
1153 #ifdef _DEBUG_JTAG_IO_
1154                                 DEBUG("statemove: %i", end_state);
1155 #endif
1156                                 break;
1157                         case JTAG_PATHMOVE:
1158                                 /* only send the maximum buffer size that FT2232C can handle */
1159                                 predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
1160                                 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1161                                 {
1162                                         ft2232_send_and_recv(first_unsent, cmd);
1163                                         require_send = 0;
1164                                         first_unsent = cmd;
1165                                 }
1166                                 ft2232_add_pathmove(cmd->cmd.pathmove);
1167                                 require_send = 1;
1168 #ifdef _DEBUG_JTAG_IO_
1169                                 DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
1170 #endif
1171                                 break;
1172                         case JTAG_SCAN:
1173                                 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
1174                                 type = jtag_scan_type(cmd->cmd.scan);
1175                                 predicted_size = ft2232_predict_scan_out(scan_size, type);
1176                                 if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
1177                                 {
1178                                         DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
1179                                         /* unsent commands before this */
1180                                         if (first_unsent != cmd)
1181                                                 ft2232_send_and_recv(first_unsent, cmd);
1182
1183                                         /* current command */
1184                                         if (cmd->cmd.scan->end_state != -1)
1185                                                 ft2232_end_state(cmd->cmd.scan->end_state);
1186                                         ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
1187                                         require_send = 0;
1188                                         first_unsent = cmd->next;
1189                                         if (buffer)
1190                                                 free(buffer);
1191                                         break;
1192                                 }
1193                                 else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1194                                 {
1195                                         DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent, cmd);
1196                                         ft2232_send_and_recv(first_unsent, cmd);
1197                                         require_send = 0;
1198                                         first_unsent = cmd;
1199                                 }
1200                                 ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
1201                                 //DEBUG("new read size: %i", ft2232_expect_read);
1202                                 if (cmd->cmd.scan->end_state != -1)
1203                                         ft2232_end_state(cmd->cmd.scan->end_state);
1204                                 ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
1205                                 require_send = 1;
1206                                 if (buffer)
1207                                         free(buffer);
1208 #ifdef _DEBUG_JTAG_IO_
1209                                 DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state);
1210 #endif
1211                                 break;
1212                         case JTAG_SLEEP:
1213                                 ft2232_send_and_recv(first_unsent, cmd);
1214                                 first_unsent = cmd->next;
1215                                 jtag_sleep(cmd->cmd.sleep->us);
1216 #ifdef _DEBUG_JTAG_IO_
1217                                 DEBUG("sleep %i usec", cmd->cmd.sleep->us);
1218 #endif
1219                                 break;
1220                         default:
1221                                 ERROR("BUG: unknown JTAG command type encountered");
1222                                 exit(-1);
1223                 }
1224                 cmd = cmd->next;
1225         }
1226
1227         if (require_send > 0)
1228                 ft2232_send_and_recv(first_unsent, cmd);
1229
1230         return ERROR_OK;
1231 }
1232
1233 #if BUILD_FT2232_FTD2XX == 1
1234 static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
1235 {
1236         FT_STATUS status;
1237         DWORD openex_flags = 0;
1238         char *openex_string = NULL;
1239         u8 latency_timer;
1240
1241         DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",
1242             ft2232_layout, vid, pid);
1243
1244 #if IS_WIN32 == 0
1245         /* Add non-standard Vid/Pid to the linux driver */
1246         if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
1247         {
1248                 WARNING("couldn't add %4.4x:%4.4x",
1249                     vid, pid);
1250         }
1251 #endif
1252
1253         if (ft2232_device_desc && ft2232_serial)
1254         {
1255                 WARNING("can't open by device description and serial number, giving precedence to serial");
1256                 ft2232_device_desc = NULL;
1257         }
1258
1259         if (ft2232_device_desc)
1260         {
1261                 openex_string = ft2232_device_desc;
1262                 openex_flags = FT_OPEN_BY_DESCRIPTION;
1263         }
1264         else if (ft2232_serial)
1265         {
1266                 openex_string = ft2232_serial;
1267                 openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
1268         }
1269         else
1270         {
1271                 ERROR("neither device description nor serial number specified");
1272                 ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
1273
1274                 return ERROR_JTAG_INIT_FAILED;
1275         }
1276
1277         if ((status = FT_OpenEx(openex_string, openex_flags, &ftdih)) != FT_OK)
1278         {
1279                 DWORD num_devices;
1280
1281                 if (more) {
1282                         WARNING("unable to open ftdi device (trying more): %lu",
1283                             status);
1284                         *try_more = 1;
1285                         return ERROR_JTAG_INIT_FAILED;
1286                 }
1287                 ERROR("unable to open ftdi device: %lu", status);
1288                 status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
1289                 if (status == FT_OK)
1290                 {
1291                         char **desc_array = malloc(sizeof(char*) * (num_devices + 1));
1292                         int i;
1293
1294                         for (i = 0; i < num_devices; i++)
1295                                 desc_array[i] = malloc(64);
1296                         desc_array[num_devices] = NULL;
1297
1298                         status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
1299
1300                         if (status == FT_OK)
1301                         {
1302                                 ERROR("ListDevices: %lu\n", num_devices);
1303                                 for (i = 0; i < num_devices; i++)
1304                                         ERROR("%i: %s", i, desc_array[i]);
1305                         }
1306
1307                         for (i = 0; i < num_devices; i++)
1308                                 free(desc_array[i]);
1309                         free(desc_array);
1310                 }
1311                 else
1312                 {
1313                         printf("ListDevices: NONE\n");
1314                 }
1315                 return ERROR_JTAG_INIT_FAILED;
1316         }
1317
1318         if ((status = FT_SetLatencyTimer(ftdih, 2)) != FT_OK)
1319         {
1320                 ERROR("unable to set latency timer: %lu", status);
1321                 return ERROR_JTAG_INIT_FAILED;
1322         }
1323
1324         if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
1325         {
1326                 ERROR("unable to get latency timer: %lu", status);
1327                 return ERROR_JTAG_INIT_FAILED;
1328         }
1329         else
1330         {
1331                 DEBUG("current latency timer: %i", latency_timer);
1332         }
1333
1334         if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK)
1335         {
1336                 ERROR("unable to set timeouts: %lu", status);
1337                 return ERROR_JTAG_INIT_FAILED;
1338         }
1339
1340         if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK)
1341         {
1342                 ERROR("unable to enable bit i/o mode: %lu", status);
1343                 return ERROR_JTAG_INIT_FAILED;
1344         }
1345
1346         return ERROR_OK;
1347 }
1348
1349 static int ft2232_purge_ftd2xx(void)
1350 {
1351         FT_STATUS status;
1352
1353         if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
1354         {
1355                 ERROR("error purging ftd2xx device: %lu", status);
1356                 return ERROR_JTAG_INIT_FAILED;
1357         }
1358
1359         return ERROR_OK;
1360 }
1361 #endif /* BUILD_FT2232_FTD2XX == 1 */
1362
1363 #if BUILD_FT2232_LIBFTDI == 1
1364 static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more)
1365 {
1366         u8 latency_timer;
1367
1368         DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
1369             ft2232_layout, vid, pid);
1370
1371         if (ftdi_init(&ftdic) < 0)
1372                 return ERROR_JTAG_INIT_FAILED;
1373
1374         /* context, vendor id, product id */
1375         if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
1376             ft2232_serial) < 0) {
1377                 if (more)
1378                         WARNING("unable to open ftdi device (trying more): %s",
1379                              ftdic.error_str);
1380                 else
1381                         ERROR("unable to open ftdi device: %s", ftdic.error_str);
1382                 *try_more = 1;
1383                 return ERROR_JTAG_INIT_FAILED;
1384         }
1385
1386         if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
1387         {
1388                 ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
1389                 return ERROR_JTAG_INIT_FAILED;
1390         }
1391
1392         if (ftdi_usb_reset(&ftdic) < 0)
1393         {
1394                 ERROR("unable to reset ftdi device");
1395                 return ERROR_JTAG_INIT_FAILED;
1396         }
1397
1398         if (ftdi_set_latency_timer(&ftdic, 2) < 0)
1399         {
1400                 ERROR("unable to set latency timer");
1401                 return ERROR_JTAG_INIT_FAILED;
1402         }
1403
1404         if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
1405         {
1406                 ERROR("unable to get latency timer");
1407                 return ERROR_JTAG_INIT_FAILED;
1408         }
1409         else
1410         {
1411                 DEBUG("current latency timer: %i", latency_timer);
1412         }
1413
1414         ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */
1415
1416         return ERROR_OK;
1417 }
1418
1419 static int ft2232_purge_libftdi(void)
1420 {
1421         if (ftdi_usb_purge_buffers(&ftdic) < 0)
1422         {
1423                 ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
1424                 return ERROR_JTAG_INIT_FAILED;
1425         }
1426
1427         return ERROR_OK;
1428 }
1429 #endif /* BUILD_FT2232_LIBFTDI == 1 */
1430
1431 int ft2232_init(void)
1432 {
1433         u8 buf[1];
1434         int retval;
1435         u32 bytes_written;
1436         ft2232_layout_t *cur_layout = ft2232_layouts;
1437         int i;
1438
1439         if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
1440         {
1441                 ft2232_layout = "usbjtag";
1442                 WARNING("No ft2232 layout specified, using default 'usbjtag'");
1443         }
1444
1445         while (cur_layout->name)
1446         {
1447                 if (strcmp(cur_layout->name, ft2232_layout) == 0)
1448                 {
1449                         layout = cur_layout;
1450                         break;
1451                 }
1452                 cur_layout++;
1453         }
1454
1455         if (!layout)
1456         {
1457                 ERROR("No matching layout found for %s", ft2232_layout);
1458                 return ERROR_JTAG_INIT_FAILED;
1459         }
1460
1461         for (i = 0; 1; i++) {
1462                 /*
1463                  * "more indicates that there are more IDs to try, so we should
1464                  * not print an error for an ID mismatch (but for anything
1465                  * else, we should).
1466                  *
1467                  * try_more indicates that the error code returned indicates an
1468                  * ID mismatch (and nothing else) and that we should proceeed
1469                  * with the next ID pair.
1470                  */
1471                 int more = ft2232_vid[i+1] || ft2232_pid[i+1];
1472                 int try_more = 0;
1473
1474 #if BUILD_FT2232_FTD2XX == 1
1475                 retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
1476                     more, &try_more);
1477 #elif BUILD_FT2232_LIBFTDI == 1
1478                 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
1479                     more, &try_more);
1480 #endif
1481                 if (retval >= 0)
1482                         break;
1483                 if (!more || !try_more)
1484                         return retval;
1485         }
1486
1487         ft2232_buffer_size = 0;
1488         ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
1489
1490         if (layout->init() != ERROR_OK)
1491                 return ERROR_JTAG_INIT_FAILED;
1492
1493         ft2232_speed(jtag_speed);
1494
1495         buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
1496         if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
1497         {
1498                 ERROR("couldn't write to FT2232 to disable loopback");
1499                 return ERROR_JTAG_INIT_FAILED;
1500         }
1501
1502 #if BUILD_FT2232_FTD2XX == 1
1503         return ft2232_purge_ftd2xx();
1504 #elif BUILD_FT2232_LIBFTDI == 1
1505         return ft2232_purge_libftdi();
1506 #endif
1507
1508         return ERROR_OK;
1509 }
1510
1511 int usbjtag_init(void)
1512 {
1513         u8 buf[3];
1514         u32 bytes_written;
1515
1516         low_output = 0x08;
1517         low_direction = 0x0b;
1518
1519         if (strcmp(ft2232_layout, "usbjtag") == 0)
1520         {
1521                 nTRST = 0x10;
1522                 nTRSTnOE = 0x10;
1523                 nSRST = 0x40;
1524                 nSRSTnOE = 0x40;
1525         }
1526         else if (strcmp(ft2232_layout, "signalyzer") == 0)
1527         {
1528                 nTRST = 0x10;
1529                 nTRSTnOE = 0x10;
1530                 nSRST = 0x20;
1531                 nSRSTnOE = 0x20;
1532         }
1533         else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
1534         {
1535                 nTRST = 0x0;
1536                 nTRSTnOE = 0x00;
1537                 nSRST = 0x20;
1538                 nSRSTnOE = 0x20;
1539                 low_output = 0x88;
1540                 low_direction = 0x8b;
1541         }
1542         else
1543         {
1544                 ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
1545                 return ERROR_JTAG_INIT_FAILED;
1546         }
1547
1548         if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1549         {
1550                 low_direction &= ~nTRSTnOE; /* nTRST input */
1551                 low_output &= ~nTRST; /* nTRST = 0 */
1552         }
1553         else
1554         {
1555                 low_direction |= nTRSTnOE; /* nTRST output */
1556                 low_output |= nTRST; /* nTRST = 1 */
1557         }
1558
1559         if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1560         {
1561                 low_direction |= nSRSTnOE; /* nSRST output */
1562                 low_output |= nSRST; /* nSRST = 1 */
1563         }
1564         else
1565         {
1566                 low_direction &= ~nSRSTnOE; /* nSRST input */
1567                 low_output &= ~nSRST; /* nSRST = 0 */
1568         }
1569
1570         /* initialize low byte for jtag */
1571         buf[0] = 0x80; /* command "set data bits low byte" */
1572         buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
1573         buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
1574         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1575
1576         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1577         {
1578                 ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
1579                 return ERROR_JTAG_INIT_FAILED;
1580         }
1581
1582         return ERROR_OK;
1583 }
1584
1585 int jtagkey_init(void)
1586 {
1587         u8 buf[3];
1588         u32 bytes_written;
1589
1590         low_output = 0x08;
1591         low_direction = 0x1b;
1592
1593         /* initialize low byte for jtag */
1594         buf[0] = 0x80; /* command "set data bits low byte" */
1595         buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1596         buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1597         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1598
1599         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1600         {
1601                 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1602                 return ERROR_JTAG_INIT_FAILED;
1603         }
1604
1605         if (strcmp(layout->name, "jtagkey") == 0)
1606         {
1607                 nTRST = 0x01;
1608                 nTRSTnOE = 0x4;
1609                 nSRST = 0x02;
1610                 nSRSTnOE = 0x08;
1611         }
1612         else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0) ||
1613                 (strcmp(layout->name, "oocdlink") == 0))
1614         {
1615                 nTRST = 0x02;
1616                 nTRSTnOE = 0x1;
1617                 nSRST = 0x08;
1618                 nSRSTnOE = 0x04;
1619         }
1620         else
1621         {
1622                 ERROR("BUG: jtagkey_init called for non jtagkey layout");
1623                 exit(-1);
1624         }
1625
1626         high_output = 0x0;
1627         high_direction = 0x0f;
1628
1629         if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1630         {
1631                 high_output |= nTRSTnOE;
1632                 high_output &= ~nTRST;
1633         }
1634         else
1635         {
1636                 high_output &= ~nTRSTnOE;
1637                 high_output |= nTRST;
1638         }
1639
1640         if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1641         {
1642                 high_output &= ~nSRSTnOE;
1643                 high_output |= nSRST;
1644         }
1645         else
1646         {
1647                 high_output |= nSRSTnOE;
1648                 high_output &= ~nSRST;
1649         }
1650
1651         /* initialize high port */
1652         buf[0] = 0x82; /* command "set data bits high byte" */
1653         buf[1] = high_output; /* value */
1654         buf[2] = high_direction;   /* all outputs (xRST and xRSTnOE) */
1655         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1656
1657         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1658         {
1659                 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1660                 return ERROR_JTAG_INIT_FAILED;
1661         }
1662
1663         return ERROR_OK;
1664 }
1665
1666 int olimex_jtag_init(void)
1667 {
1668         u8 buf[3];
1669         u32 bytes_written;
1670
1671         low_output = 0x08;
1672         low_direction = 0x1b;
1673
1674         /* initialize low byte for jtag */
1675         buf[0] = 0x80; /* command "set data bits low byte" */
1676         buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1677         buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1678         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1679
1680         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1681         {
1682                 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1683                 return ERROR_JTAG_INIT_FAILED;
1684         }
1685
1686         nTRST = 0x01;
1687         nTRSTnOE = 0x4;
1688         nSRST = 0x02;
1689         nSRSTnOE = 0x00; /* no output enable for nSRST */
1690
1691         high_output = 0x0;
1692         high_direction = 0x0f;
1693
1694         if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1695         {
1696                 high_output |= nTRSTnOE;
1697                 high_output &= ~nTRST;
1698         }
1699         else
1700         {
1701                 high_output &= ~nTRSTnOE;
1702                 high_output |= nTRST;
1703         }
1704
1705         if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1706         {
1707                 ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
1708         }
1709         else
1710         {
1711                 high_output &= ~nSRST;
1712         }
1713
1714         /* turn red LED on */
1715         high_output |= 0x08;
1716
1717         /* initialize high port */
1718         buf[0] = 0x82; /* command "set data bits high byte" */
1719         buf[1] = high_output; /* value */
1720         buf[2] = high_direction;   /* all outputs (xRST and xRSTnOE) */
1721         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1722
1723         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1724         {
1725                 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1726                 return ERROR_JTAG_INIT_FAILED;
1727         }
1728
1729         return ERROR_OK;
1730 }
1731
1732 int m5960_init(void)
1733 {
1734         u8 buf[3];
1735         u32 bytes_written;
1736
1737         low_output = 0x18;
1738         low_direction = 0xfb;
1739
1740         /* initialize low byte for jtag */
1741         buf[0] = 0x80; /* command "set data bits low byte" */
1742         buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1743         buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
1744         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1745
1746         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1747         {
1748                 ERROR("couldn't initialize FT2232 with 'm5960' layout");
1749                 return ERROR_JTAG_INIT_FAILED;
1750         }
1751
1752         nTRST = 0x10;
1753         nTRSTnOE = 0x0; /* not output enable for nTRST */
1754         nSRST = 0x20;
1755         nSRSTnOE = 0x00; /* no output enable for nSRST */
1756
1757         high_output = 0x00;
1758         high_direction = 0x0c;
1759
1760         /* turn red LED1 on, LED2 off */
1761         high_output |= 0x08;
1762
1763         /* initialize high port */
1764         buf[0] = 0x82; /* command "set data bits high byte" */
1765         buf[1] = high_output; /* value */
1766         buf[2] = high_direction;   /* all outputs (xRST and xRSTnOE) */
1767         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1768
1769         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1770         {
1771                 ERROR("couldn't initialize FT2232 with 'm5960' layout");
1772                 return ERROR_JTAG_INIT_FAILED;
1773         }
1774
1775         return ERROR_OK;
1776 }
1777
1778 int turtle_init(void)
1779 {
1780         u8 buf[3];
1781         u32 bytes_written;
1782
1783         low_output = 0x08;
1784         low_direction = 0x5b;
1785
1786         /* initialize low byte for jtag */
1787         buf[0] = 0x80; /* command "set data bits low byte" */
1788         buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1789         buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1790         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1791
1792         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1793         {
1794                 ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
1795                 return ERROR_JTAG_INIT_FAILED;
1796         }
1797
1798   nSRST = 0x40;
1799
1800         high_output = 0x00;
1801         high_direction = 0x0C;
1802
1803         /* initialize high port */
1804         buf[0] = 0x82; /* command "set data bits high byte" */
1805         buf[1] = high_output;
1806         buf[2] = high_direction;
1807         DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1808
1809         if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1810         {
1811                 ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
1812                 return ERROR_JTAG_INIT_FAILED;
1813         }
1814
1815         return ERROR_OK;
1816 }
1817
1818 void olimex_jtag_blink(void)
1819 {
1820         /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
1821          * ACBUS3 is bit 3 of the GPIOH port
1822          */
1823         if (high_output & 0x08)
1824         {
1825                 /* set port pin high */
1826                 high_output &= 0x07;
1827         }
1828         else
1829         {
1830                 /* set port pin low */
1831                 high_output |= 0x08;
1832         }
1833
1834         BUFFER_ADD = 0x82;
1835         BUFFER_ADD = high_output;
1836         BUFFER_ADD = high_direction;
1837 }
1838
1839 void turtle_jtag_blink(void)
1840 {
1841         /*
1842    * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
1843          */
1844         if (high_output & 0x08)
1845         {
1846                 high_output = 0x04;
1847         }
1848         else
1849         {
1850                 high_output = 0x08;
1851         }
1852
1853         BUFFER_ADD = 0x82;
1854         BUFFER_ADD = high_output;
1855         BUFFER_ADD = high_direction;
1856 }
1857
1858
1859 int ft2232_quit(void)
1860 {
1861 #if BUILD_FT2232_FTD2XX == 1
1862         FT_STATUS status;
1863
1864         status = FT_Close(ftdih);
1865 #elif BUILD_FT2232_LIBFTDI == 1
1866         ftdi_disable_bitbang(&ftdic);
1867
1868         ftdi_usb_close(&ftdic);
1869
1870         ftdi_deinit(&ftdic);
1871 #endif
1872
1873         free(ft2232_buffer);
1874
1875         return ERROR_OK;
1876 }
1877
1878 int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1879 {
1880         if (argc == 1)
1881         {
1882                 ft2232_device_desc = strdup(args[0]);
1883         }
1884         else
1885         {
1886                 ERROR("expected exactly one argument to ft2232_device_desc <description>");
1887         }
1888
1889         return ERROR_OK;
1890 }
1891
1892 int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1893 {
1894         if (argc == 1)
1895         {
1896                 ft2232_serial = strdup(args[0]);
1897         }
1898         else
1899         {
1900                 ERROR("expected exactly one argument to ft2232_serial <serial-number>");
1901         }
1902
1903         return ERROR_OK;
1904 }
1905
1906 int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1907 {
1908         if (argc == 0)
1909                 return ERROR_OK;
1910
1911         ft2232_layout = malloc(strlen(args[0]) + 1);
1912         strcpy(ft2232_layout, args[0]);
1913
1914         return ERROR_OK;
1915 }
1916
1917 int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1918 {
1919         int i;
1920
1921         if (argc > MAX_USB_IDS*2) {
1922                 WARNING("ignoring extra IDs in ft2232_vid_pid "
1923                     "(maximum is %d pairs)", MAX_USB_IDS);
1924                 argc = MAX_USB_IDS*2;
1925         }
1926         if (argc < 2 || (argc & 1))
1927         {
1928                 WARNING("incomplete ft2232_vid_pid configuration directive");
1929                 if (argc < 2)
1930                         return ERROR_OK;
1931         }
1932
1933         for (i = 0; i+1 < argc; i += 2) {
1934                 ft2232_vid[i >> 1] = strtol(args[i], NULL, 0);
1935                 ft2232_pid[i >> 1] = strtol(args[i+1], NULL, 0);
1936         }
1937         /*
1938          * Explicitly terminate, in case there are multiples instances of
1939          * ft2232_vid_pid.
1940          */
1941         ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
1942
1943         return ERROR_OK;
1944 }