git.gag.com Git - fw/openocd/blob - src/jtag/drivers/jlink.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net>            *
   3  *   based on Dominic Rath's and Benedikt Sauter's usbprog.c               *
   4  *                                                                         *
   5  *   Copyright (C) 2008 by Spencer Oliver                                  *
   6  *   spen@spen-soft.co.uk                                                  *
   7  *                                                                         *
   8  *   Copyright (C) 2011 by Jean-Christophe PLAGNIOL-VIILARD                *
   9  *   plagnioj@jcrosoft.com                                                 *
  10  *                                                                         *
  11  *   Copyright (C) 2015 by Marc Schink                                     *
  12  *   openocd-dev@marcschink.de                                             *
  13  *                                                                         *
  14  *   Copyright (C) 2015 by Paul Fertser                                    *
  15  *   fercerpav@gmail.com                                                   *
  16  *                                                                         *
  17  *   This program is free software; you can redistribute it and/or modify  *
  18  *   it under the terms of the GNU General Public License as published by  *
  19  *   the Free Software Foundation; either version 2 of the License, or     *
  20  *   (at your option) any later version.                                   *
  21  *                                                                         *
  22  *   This program is distributed in the hope that it will be useful,       *
  23  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  24  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  25  *   GNU General Public License for more details.                          *
  26  *                                                                         *
  27  *   You should have received a copy of the GNU General Public License     *
  28  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  29  ***************************************************************************/
  30
  31 #ifdef HAVE_CONFIG_H
  32 #include "config.h"
  33 #endif
  34
  35 #include <stdint.h>
  36 #include <math.h>
  37
  38 #include <jtag/interface.h>
  39 #include <jtag/swd.h>
  40 #include <jtag/commands.h>
  41
  42 #include <libjaylink/libjaylink.h>
  43
  44 static struct jaylink_context *jayctx;
  45 static struct jaylink_device_handle *devh;
  46 static struct jaylink_connection conn;
  47 static struct jaylink_connection connlist[JAYLINK_MAX_CONNECTIONS];
  48 static enum jaylink_jtag_version jtag_command_version;
  49 static uint8_t caps[JAYLINK_DEV_EXT_CAPS_SIZE];
  50
  51 static uint32_t serial_number;
  52 static bool use_serial_number;
  53 static enum jaylink_usb_address usb_address;
  54 static bool use_usb_address;
  55 static enum jaylink_target_interface iface = JAYLINK_TIF_JTAG;
  56 static bool trace_enabled;
  57
  58 #define JLINK_MAX_SPEED                 12000
  59 #define JLINK_TAP_BUFFER_SIZE   2048
  60
  61 static unsigned int swd_buffer_size = JLINK_TAP_BUFFER_SIZE;
  62
  63 /* 256 byte non-volatile memory */
  64 struct device_config {
  65         uint8_t usb_address;
  66         /* 0ffset 0x01 to 0x03 */
  67         uint8_t reserved_1[3];
  68         uint32_t target_power;
  69         /* 0ffset 0x08 to 0x1f */
  70         uint8_t reserved_2[24];
  71         /* IP only for J-Link Pro */
  72         uint8_t ip_address[4];
  73         uint8_t subnet_mask[4];
  74         /* 0ffset 0x28 to 0x2f */
  75         uint8_t reserved_3[8];
  76         uint8_t mac_address[6];
  77         /* 0ffset 0x36 to 0xff */
  78         uint8_t reserved_4[202];
  79 } __attribute__ ((packed));
  80
  81 static struct device_config config;
  82 static struct device_config tmp_config;
  83
  84 /* Queue command functions */
  85 static void jlink_end_state(tap_state_t state);
  86 static void jlink_state_move(void);
  87 static void jlink_path_move(int num_states, tap_state_t *path);
  88 static void jlink_stableclocks(int num_cycles);
  89 static void jlink_runtest(int num_cycles);
  90 static void jlink_reset(int trst, int srst);
  91 static int jlink_swd_run_queue(void);
  92 static void jlink_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data, uint32_t ap_delay_clk);
  93 static int jlink_swd_switch_seq(enum swd_special_seq seq);
  94
  95 /* J-Link tap buffer functions */
  96 static void jlink_tap_init(void);
  97 static int jlink_flush(void);
  98 /**
  99  * Queue data to go out and in, flushing the queue as many times as
 100  * necessary.
 101  *
 102  * @param out A pointer to TDI data, if NULL, old stale data will be used.
 103  * @param out_offset A bit offset for TDI data.
 104  * @param tms_out A pointer to TMS data, if NULL, zeroes will be emitted.
 105  * @param tms_offset A bit offset for TMS data.
 106  * @param in A pointer to store TDO data to, if NULL the data will be discarded.
 107  * @param in_offset A bit offset for TDO data.
 108  * @param length Amount of bits to transfer out and in.
 109  *
 110  * @retval This function doesn't return any value.
 111  */
 112 static void jlink_clock_data(const uint8_t *out, unsigned out_offset,
 113                              const uint8_t *tms_out, unsigned tms_offset,
 114                              uint8_t *in, unsigned in_offset,
 115                              unsigned length);
 116
 117 static enum tap_state jlink_last_state = TAP_RESET;
 118 static int queued_retval;
 119
 120 /***************************************************************************/
 121 /* External interface implementation */
 122
 123 static void jlink_execute_stableclocks(struct jtag_command *cmd)
 124 {
 125         DEBUG_JTAG_IO("stableclocks %i cycles", cmd->cmd.runtest->num_cycles);
 126         jlink_stableclocks(cmd->cmd.runtest->num_cycles);
 127 }
 128
 129 static void jlink_execute_runtest(struct jtag_command *cmd)
 130 {
 131         DEBUG_JTAG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
 132                 cmd->cmd.runtest->end_state);
 133
 134         jlink_end_state(cmd->cmd.runtest->end_state);
 135         jlink_runtest(cmd->cmd.runtest->num_cycles);
 136 }
 137
 138 static void jlink_execute_statemove(struct jtag_command *cmd)
 139 {
 140         DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
 141
 142         jlink_end_state(cmd->cmd.statemove->end_state);
 143         jlink_state_move();
 144 }
 145
 146 static void jlink_execute_pathmove(struct jtag_command *cmd)
 147 {
 148         DEBUG_JTAG_IO("pathmove: %i states, end in %i",
 149                 cmd->cmd.pathmove->num_states,
 150                 cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
 151
 152         jlink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
 153 }
 154
 155 static void jlink_execute_scan(struct jtag_command *cmd)
 156 {
 157         DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN",
 158                 jtag_scan_type(cmd->cmd.scan));
 159
 160         /* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */
 161         while (cmd->cmd.scan->num_fields > 0
 162                         && cmd->cmd.scan->fields[cmd->cmd.scan->num_fields - 1].num_bits == 0) {
 163                 cmd->cmd.scan->num_fields--;
 164                 LOG_DEBUG("discarding trailing empty field");
 165         }
 166
 167         if (cmd->cmd.scan->num_fields == 0) {
 168                 LOG_DEBUG("empty scan, doing nothing");
 169                 return;
 170         }
 171
 172         if (cmd->cmd.scan->ir_scan) {
 173                 if (tap_get_state() != TAP_IRSHIFT) {
 174                         jlink_end_state(TAP_IRSHIFT);
 175                         jlink_state_move();
 176                 }
 177         } else {
 178                 if (tap_get_state() != TAP_DRSHIFT) {
 179                         jlink_end_state(TAP_DRSHIFT);
 180                         jlink_state_move();
 181                 }
 182         }
 183
 184         jlink_end_state(cmd->cmd.scan->end_state);
 185
 186         struct scan_field *field = cmd->cmd.scan->fields;
 187         unsigned scan_size = 0;
 188
 189         for (int i = 0; i < cmd->cmd.scan->num_fields; i++, field++) {
 190                 scan_size += field->num_bits;
 191                 DEBUG_JTAG_IO("%s%s field %d/%d %d bits",
 192                         field->in_value ? "in" : "",
 193                         field->out_value ? "out" : "",
 194                         i,
 195                         cmd->cmd.scan->num_fields,
 196                         field->num_bits);
 197
 198                 if (i == cmd->cmd.scan->num_fields - 1 && tap_get_state() != tap_get_end_state()) {
 199                         /* Last field, and we're leaving IRSHIFT/DRSHIFT. Clock last bit during tap
 200                          * movement. This last field can't have length zero, it was checked above. */
 201                         jlink_clock_data(field->out_value,
 202                                          0,
 203                                          NULL,
 204                                          0,
 205                                          field->in_value,
 206                                          0,
 207                                          field->num_bits - 1);
 208                         uint8_t last_bit = 0;
 209                         if (field->out_value)
 210                                 bit_copy(&last_bit, 0, field->out_value, field->num_bits - 1, 1);
 211                         uint8_t tms_bits = 0x01;
 212                         jlink_clock_data(&last_bit,
 213                                          0,
 214                                          &tms_bits,
 215                                          0,
 216                                          field->in_value,
 217                                          field->num_bits - 1,
 218                                          1);
 219                         tap_set_state(tap_state_transition(tap_get_state(), 1));
 220                         jlink_clock_data(&last_bit,
 221                                          0,
 222                                          &tms_bits,
 223                                          1,
 224                                          NULL,
 225                                          0,
 226                                          1);
 227                         tap_set_state(tap_state_transition(tap_get_state(), 0));
 228                 } else
 229                         jlink_clock_data(field->out_value,
 230                                          0,
 231                                          NULL,
 232                                          0,
 233                                          field->in_value,
 234                                          0,
 235                                          field->num_bits);
 236         }
 237
 238         if (tap_get_state() != tap_get_end_state()) {
 239                 jlink_end_state(tap_get_end_state());
 240                 jlink_state_move();
 241         }
 242
 243         DEBUG_JTAG_IO("%s scan, %i bits, end in %s",
 244                 (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
 245                 tap_state_name(tap_get_end_state()));
 246 }
 247
 248 static void jlink_execute_reset(struct jtag_command *cmd)
 249 {
 250         DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst,
 251                 cmd->cmd.reset->srst);
 252
 253         jlink_flush();
 254         jlink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
 255         jlink_flush();
 256 }
 257
 258 static void jlink_execute_sleep(struct jtag_command *cmd)
 259 {
 260         DEBUG_JTAG_IO("sleep %" PRIi32 "", cmd->cmd.sleep->us);
 261         jlink_flush();
 262         jtag_sleep(cmd->cmd.sleep->us);
 263 }
 264
 265 static int jlink_execute_command(struct jtag_command *cmd)
 266 {
 267         switch (cmd->type) {
 268                 case JTAG_STABLECLOCKS:
 269                         jlink_execute_stableclocks(cmd);
 270                         break;
 271                 case JTAG_RUNTEST:
 272                         jlink_execute_runtest(cmd);
 273                         break;
 274                 case JTAG_TLR_RESET:
 275                         jlink_execute_statemove(cmd);
 276                         break;
 277                 case JTAG_PATHMOVE:
 278                         jlink_execute_pathmove(cmd);
 279                         break;
 280                 case JTAG_SCAN:
 281                         jlink_execute_scan(cmd);
 282                         break;
 283                 case JTAG_RESET:
 284                         jlink_execute_reset(cmd);
 285                         break;
 286                 case JTAG_SLEEP:
 287                         jlink_execute_sleep(cmd);
 288                         break;
 289                 default:
 290                         LOG_ERROR("BUG: Unknown JTAG command type encountered.");
 291                         return ERROR_JTAG_QUEUE_FAILED;
 292         }
 293
 294         return ERROR_OK;
 295 }
 296
 297 static int jlink_execute_queue(void)
 298 {
 299         int ret;
 300         struct jtag_command *cmd = jtag_command_queue;
 301
 302         while (cmd != NULL) {
 303                 ret = jlink_execute_command(cmd);
 304
 305                 if (ret != ERROR_OK)
 306                         return ret;
 307
 308                 cmd = cmd->next;
 309         }
 310
 311         return jlink_flush();
 312 }
 313
 314 static int jlink_speed(int speed)
 315 {
 316         int ret;
 317         uint32_t freq;
 318         uint16_t divider;
 319         int max_speed;
 320
 321         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_SPEEDS)) {
 322                 ret = jaylink_get_speeds(devh, &freq, &divider);
 323
 324                 if (ret != JAYLINK_OK) {
 325                         LOG_ERROR("jaylink_get_speeds() failed: %s.",
 326                                 jaylink_strerror_name(ret));
 327                         return ERROR_JTAG_DEVICE_ERROR;
 328                 }
 329
 330                 freq = freq / 1000;
 331                 max_speed = freq / divider;
 332         } else {
 333                 max_speed = JLINK_MAX_SPEED;
 334         }
 335
 336         if (!speed) {
 337                 if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_ADAPTIVE_CLOCKING)) {
 338                         LOG_ERROR("Adaptive clocking is not supported by the device.");
 339                         return ERROR_JTAG_NOT_IMPLEMENTED;
 340                 }
 341
 342                 speed = JAYLINK_SPEED_ADAPTIVE_CLOCKING;
 343         } else if (speed > max_speed) {
 344                 LOG_INFO("Reduced speed from %d kHz to %d kHz (maximum).", speed,
 345                         max_speed);
 346                 speed = max_speed;
 347         }
 348
 349         ret = jaylink_set_speed(devh, speed);
 350
 351         if (ret != JAYLINK_OK) {
 352                 LOG_ERROR("jaylink_set_speed() failed: %s.",
 353                         jaylink_strerror_name(ret));
 354                 return ERROR_JTAG_DEVICE_ERROR;
 355         }
 356
 357         return ERROR_OK;
 358 }
 359
 360 static int jlink_speed_div(int speed, int *khz)
 361 {
 362         *khz = speed;
 363
 364         return ERROR_OK;
 365 }
 366
 367 static int jlink_khz(int khz, int *jtag_speed)
 368 {
 369         *jtag_speed = khz;
 370
 371         return ERROR_OK;
 372 }
 373
 374 static bool read_device_config(struct device_config *cfg)
 375 {
 376         int ret;
 377
 378         ret = jaylink_read_raw_config(devh, (uint8_t *)cfg);
 379
 380         if (ret != JAYLINK_OK) {
 381                 LOG_ERROR("jaylink_read_raw_config() failed: %s.",
 382                         jaylink_strerror_name(ret));
 383                 return false;
 384         }
 385
 386         if (cfg->usb_address == 0xff)
 387                 cfg->usb_address = 0x00;
 388
 389         if (cfg->target_power == 0xffffffff)
 390                 cfg->target_power = 0;
 391
 392         return true;
 393 }
 394
 395 static int select_interface(void)
 396 {
 397         int ret;
 398         uint32_t interfaces;
 399
 400         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SELECT_TIF)) {
 401                 if (iface != JAYLINK_TIF_JTAG) {
 402                         LOG_ERROR("Device supports JTAG transport only.");
 403                         return ERROR_JTAG_INIT_FAILED;
 404                 }
 405
 406                 return ERROR_OK;
 407         }
 408
 409         ret = jaylink_get_available_interfaces(devh, &interfaces);
 410
 411         if (ret != JAYLINK_OK) {
 412                 LOG_ERROR("jaylink_get_available_interfaces() failed: %s.",
 413                         jaylink_strerror_name(ret));
 414                 return ERROR_JTAG_INIT_FAILED;
 415         }
 416
 417         if (!(interfaces & (1 << iface))) {
 418                 LOG_ERROR("Selected transport is not supported by the device.");
 419                 return ERROR_JTAG_INIT_FAILED;
 420         }
 421
 422         ret = jaylink_select_interface(devh, iface, NULL);
 423
 424         if (ret < 0) {
 425                 LOG_ERROR("jaylink_select_interface() failed: %s.",
 426                         jaylink_strerror_name(ret));
 427                 return ERROR_JTAG_INIT_FAILED;
 428         }
 429
 430         return ERROR_OK;
 431 }
 432
 433 static int jlink_register(void)
 434 {
 435         int ret;
 436         int i;
 437         bool handle_found;
 438
 439         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_REGISTER))
 440                 return ERROR_OK;
 441
 442         ret = jaylink_register(devh, &conn, connlist, NULL, NULL);
 443
 444         if (ret < 0) {
 445                 LOG_ERROR("jaylink_register() failed: %s.",
 446                         jaylink_strerror_name(ret));
 447                 return ERROR_FAIL;
 448         }
 449
 450         handle_found = false;
 451
 452         for (i = 0; i < ret; i++) {
 453                 if (connlist[i].handle == conn.handle) {
 454                         handle_found = true;
 455                         break;
 456                 }
 457         }
 458
 459         if (!handle_found) {
 460                 LOG_ERROR("Registration failed: maximum number of connections on the "
 461                         "device reached.");
 462                 return ERROR_FAIL;
 463         }
 464
 465         return ERROR_OK;
 466 }
 467
 468 /*
 469  * Adjust the SWD transaction buffer size depending on the free device internal
 470  * memory. This ensures that the SWD transactions sent to the device do not
 471  * exceed the internal memory of the device.
 472  */
 473 static bool adjust_swd_buffer_size(void)
 474 {
 475         int ret;
 476         uint32_t tmp;
 477
 478         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_FREE_MEMORY))
 479                 return true;
 480
 481         ret = jaylink_get_free_memory(devh, &tmp);
 482
 483         if (ret != JAYLINK_OK) {
 484                 LOG_ERROR("jaylink_get_free_memory() failed: %s.",
 485                         jaylink_strerror_name(ret));
 486                 return false;
 487         }
 488
 489         if (tmp < 143) {
 490                 LOG_ERROR("Not enough free device internal memory: %u bytes.", tmp);
 491                 return false;
 492         }
 493
 494         tmp = MIN(JLINK_TAP_BUFFER_SIZE, (tmp - 16) / 2);
 495
 496         if (tmp != swd_buffer_size) {
 497                 swd_buffer_size = tmp;
 498                 LOG_DEBUG("Adjusted SWD transaction buffer size to %u bytes.",
 499                         swd_buffer_size);
 500         }
 501
 502         return true;
 503 }
 504
 505 static int jlink_init(void)
 506 {
 507         int ret;
 508         struct jaylink_device **devs;
 509         unsigned int i;
 510         bool found_device;
 511         uint32_t tmp;
 512         char *firmware_version;
 513         struct jaylink_hardware_version hwver;
 514         struct jaylink_hardware_status hwstatus;
 515         enum jaylink_usb_address address;
 516         size_t length;
 517
 518         ret = jaylink_init(&jayctx);
 519
 520         if (ret != JAYLINK_OK) {
 521                 LOG_ERROR("jaylink_init() failed: %s.",
 522                         jaylink_strerror_name(ret));
 523                 return ERROR_JTAG_INIT_FAILED;
 524         }
 525
 526         ret = jaylink_get_device_list(jayctx, &devs);
 527
 528         if (ret < 0) {
 529                 LOG_ERROR("jaylink_get_device_list() failed: %s.",
 530                         jaylink_strerror_name(ret));
 531                 jaylink_exit(jayctx);
 532                 return ERROR_JTAG_INIT_FAILED;
 533         }
 534
 535         found_device = false;
 536
 537         if (!use_serial_number && !use_usb_address)
 538                 LOG_INFO("No device selected, using first device.");
 539
 540         for (i = 0; devs[i]; i++) {
 541                 if (use_serial_number) {
 542                         ret = jaylink_device_get_serial_number(devs[i], &tmp);
 543
 544                         if (ret == JAYLINK_ERR_NOT_AVAILABLE) {
 545                                 continue;
 546                         } else if (ret != JAYLINK_OK) {
 547                                 LOG_WARNING("jaylink_device_get_serial_number() failed: %s.",
 548                                         jaylink_strerror_name(ret));
 549                                 continue;
 550                         }
 551
 552                         if (serial_number != tmp)
 553                                 continue;
 554                 }
 555
 556                 if (use_usb_address) {
 557                         ret = jaylink_device_get_usb_address(devs[i], &address);
 558
 559                         if (ret != JAYLINK_OK) {
 560                                 LOG_WARNING("jaylink_device_get_usb_address() failed: %s.",
 561                                         jaylink_strerror_name(ret));
 562                                 continue;
 563                         }
 564
 565                         if (usb_address != address)
 566                                 continue;
 567                 }
 568
 569                 ret = jaylink_open(devs[i], &devh);
 570
 571                 if (ret == JAYLINK_OK) {
 572                         found_device = true;
 573                         break;
 574                 }
 575
 576                 LOG_ERROR("Failed to open device: %s.", jaylink_strerror_name(ret));
 577         }
 578
 579         jaylink_free_device_list(devs, 1);
 580
 581         if (!found_device) {
 582                 LOG_ERROR("No J-Link device found.");
 583                 jaylink_exit(jayctx);
 584                 return ERROR_JTAG_INIT_FAILED;
 585         }
 586
 587         /*
 588          * Be careful with changing the following initialization sequence because
 589          * some devices are known to be sensitive regarding the order.
 590          */
 591
 592         ret = jaylink_get_firmware_version(devh, &firmware_version, &length);
 593
 594         if (ret != JAYLINK_OK) {
 595                 LOG_ERROR("jaylink_get_firmware_version() failed: %s.",
 596                         jaylink_strerror_name(ret));
 597                 jaylink_close(devh);
 598                 jaylink_exit(jayctx);
 599                 return ERROR_JTAG_INIT_FAILED;
 600         } else if (length > 0) {
 601                 LOG_INFO("%s", firmware_version);
 602                 free(firmware_version);
 603         } else {
 604                 LOG_WARNING("Device responds empty firmware version string.");
 605         }
 606
 607         memset(caps, 0, JAYLINK_DEV_EXT_CAPS_SIZE);
 608         ret = jaylink_get_caps(devh, caps);
 609
 610         if (ret != JAYLINK_OK) {
 611                 LOG_ERROR("jaylink_get_caps() failed: %s.", jaylink_strerror_name(ret));
 612                 jaylink_close(devh);
 613                 jaylink_exit(jayctx);
 614                 return ERROR_JTAG_INIT_FAILED;
 615         }
 616
 617         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_EXT_CAPS)) {
 618                 ret = jaylink_get_extended_caps(devh, caps);
 619
 620                 if (ret != JAYLINK_OK) {
 621                         LOG_ERROR("jaylink_get_extended_caps() failed:  %s.",
 622                                 jaylink_strerror_name(ret));
 623                         jaylink_close(devh);
 624                         jaylink_exit(jayctx);
 625                         return ERROR_JTAG_INIT_FAILED;
 626                 }
 627         }
 628
 629         jtag_command_version = JAYLINK_JTAG_V2;
 630
 631         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_HW_VERSION)) {
 632                 ret = jaylink_get_hardware_version(devh, &hwver);
 633
 634                 if (ret != JAYLINK_OK) {
 635                         LOG_ERROR("Failed to retrieve hardware version: %s.",
 636                                 jaylink_strerror_name(ret));
 637                         jaylink_close(devh);
 638                         jaylink_exit(jayctx);
 639                         return ERROR_JTAG_INIT_FAILED;
 640                 }
 641
 642                 LOG_INFO("Hardware version: %u.%02u", hwver.major, hwver.minor);
 643
 644                 if (hwver.major >= 5)
 645                         jtag_command_version = JAYLINK_JTAG_V3;
 646         }
 647
 648         if (iface == JAYLINK_TIF_SWD) {
 649                 /*
 650                  * Adjust the SWD transaction buffer size in case there is already
 651                  * allocated memory on the device. This happens for example if the
 652                  * memory for SWO capturing is still allocated because the software
 653                  * which used the device before has not been shut down properly.
 654                  */
 655                 if (!adjust_swd_buffer_size()) {
 656                         jaylink_close(devh);
 657                         jaylink_exit(jayctx);
 658                         return ERROR_JTAG_INIT_FAILED;
 659                 }
 660         }
 661
 662         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
 663                 if (!read_device_config(&config)) {
 664                         LOG_ERROR("Failed to read device configuration data.");
 665                         jaylink_close(devh);
 666                         jaylink_exit(jayctx);
 667                         return ERROR_JTAG_INIT_FAILED;
 668                 }
 669
 670                 memcpy(&tmp_config, &config, sizeof(struct device_config));
 671         }
 672
 673         ret = jaylink_get_hardware_status(devh, &hwstatus);
 674
 675         if (ret != JAYLINK_OK) {
 676                 LOG_ERROR("jaylink_get_hardware_status() failed: %s.",
 677                         jaylink_strerror_name(ret));
 678                 jaylink_close(devh);
 679                 jaylink_exit(jayctx);
 680                 return ERROR_JTAG_INIT_FAILED;
 681         }
 682
 683         LOG_INFO("VTarget = %u.%03u V", hwstatus.target_voltage / 1000,
 684                 hwstatus.target_voltage % 1000);
 685
 686         conn.handle = 0;
 687         conn.pid = 0;
 688         conn.hid = 0;
 689         conn.iid = 0;
 690         conn.cid = 0;
 691
 692         ret = jlink_register();
 693
 694         if (ret != ERROR_OK) {
 695                 jaylink_close(devh);
 696                 jaylink_exit(jayctx);
 697                 return ERROR_JTAG_INIT_FAILED;
 698         }
 699
 700         ret = select_interface();
 701
 702         if (ret != ERROR_OK) {
 703                 jaylink_close(devh);
 704                 jaylink_exit(jayctx);
 705                 return ret;
 706         }
 707
 708         jlink_reset(0, 0);
 709         jtag_sleep(3000);
 710         jlink_tap_init();
 711
 712         jlink_speed(jtag_get_speed_khz());
 713
 714         if (iface == JAYLINK_TIF_JTAG) {
 715                 /*
 716                  * J-Link devices with firmware version v5 and v6 seems to have an issue
 717                  * if the first tap move is not divisible by 8, so we send a TLR on
 718                  * first power up.
 719                  */
 720                 uint8_t tms = 0xff;
 721                 jlink_clock_data(NULL, 0, &tms, 0, NULL, 0, 8);
 722
 723                 jlink_flush();
 724         }
 725
 726         return ERROR_OK;
 727 }
 728
 729 static int jlink_quit(void)
 730 {
 731         int ret;
 732
 733         if (trace_enabled) {
 734                 ret = jaylink_swo_stop(devh);
 735
 736                 if (ret != JAYLINK_OK)
 737                         LOG_ERROR("jaylink_swo_stop() failed: %s.",
 738                                 jaylink_strerror_name(ret));
 739         }
 740
 741         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_REGISTER)) {
 742                 ret = jaylink_unregister(devh, &conn, connlist, NULL, NULL);
 743
 744                 if (ret < 0)
 745                         LOG_ERROR("jaylink_unregister() failed: %s.",
 746                                 jaylink_strerror_name(ret));
 747         }
 748
 749         jaylink_close(devh);
 750         jaylink_exit(jayctx);
 751
 752         return ERROR_OK;
 753 }
 754
 755 /***************************************************************************/
 756 /* Queue command implementations */
 757
 758 static void jlink_end_state(tap_state_t state)
 759 {
 760         if (tap_is_state_stable(state))
 761                 tap_set_end_state(state);
 762         else {
 763                 LOG_ERROR("BUG: %i is not a valid end state", state);
 764                 exit(-1);
 765         }
 766 }
 767
 768 /* Goes to the end state. */
 769 static void jlink_state_move(void)
 770 {
 771         uint8_t tms_scan;
 772         uint8_t tms_scan_bits;
 773
 774         tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
 775         tms_scan_bits = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
 776
 777         jlink_clock_data(NULL, 0, &tms_scan, 0, NULL, 0, tms_scan_bits);
 778
 779         tap_set_state(tap_get_end_state());
 780 }
 781
 782 static void jlink_path_move(int num_states, tap_state_t *path)
 783 {
 784         int i;
 785         uint8_t tms = 0xff;
 786
 787         for (i = 0; i < num_states; i++) {
 788                 if (path[i] == tap_state_transition(tap_get_state(), false))
 789                         jlink_clock_data(NULL, 0, NULL, 0, NULL, 0, 1);
 790                 else if (path[i] == tap_state_transition(tap_get_state(), true))
 791                         jlink_clock_data(NULL, 0, &tms, 0, NULL, 0, 1);
 792                 else {
 793                         LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition.",
 794                                 tap_state_name(tap_get_state()), tap_state_name(path[i]));
 795                         exit(-1);
 796                 }
 797
 798                 tap_set_state(path[i]);
 799         }
 800
 801         tap_set_end_state(tap_get_state());
 802 }
 803
 804 static void jlink_stableclocks(int num_cycles)
 805 {
 806         int i;
 807
 808         uint8_t tms = tap_get_state() == TAP_RESET;
 809         /* Execute num_cycles. */
 810         for (i = 0; i < num_cycles; i++)
 811                 jlink_clock_data(NULL, 0, &tms, 0, NULL, 0, 1);
 812 }
 813
 814 static void jlink_runtest(int num_cycles)
 815 {
 816         tap_state_t saved_end_state = tap_get_end_state();
 817
 818         /* Only do a state_move when we're not already in IDLE. */
 819         if (tap_get_state() != TAP_IDLE) {
 820                 jlink_end_state(TAP_IDLE);
 821                 jlink_state_move();
 822                 /* num_cycles--; */
 823         }
 824
 825         jlink_stableclocks(num_cycles);
 826
 827         /* Finish in end_state. */
 828         jlink_end_state(saved_end_state);
 829
 830         if (tap_get_state() != tap_get_end_state())
 831                 jlink_state_move();
 832 }
 833
 834 static void jlink_reset(int trst, int srst)
 835 {
 836         LOG_DEBUG("TRST: %i, SRST: %i.", trst, srst);
 837
 838         /* Signals are active low. */
 839         if (srst == 0)
 840                 jaylink_set_reset(devh);
 841
 842         if (srst == 1)
 843                 jaylink_clear_reset(devh);
 844
 845         if (trst == 1)
 846                 jaylink_jtag_clear_trst(devh);
 847
 848         if (trst == 0)
 849                 jaylink_jtag_set_trst(devh);
 850 }
 851
 852 COMMAND_HANDLER(jlink_usb_command)
 853 {
 854         int tmp;
 855
 856         if (CMD_ARGC != 1) {
 857                 command_print(CMD_CTX, "Need exactly one argument for jlink usb.");
 858                 return ERROR_COMMAND_SYNTAX_ERROR;
 859         }
 860
 861         if (sscanf(CMD_ARGV[0], "%i", &tmp) != 1) {
 862                 command_print(CMD_CTX, "Invalid USB address: %s.", CMD_ARGV[0]);
 863                 return ERROR_FAIL;
 864         }
 865
 866         if (tmp < JAYLINK_USB_ADDRESS_0 || tmp > JAYLINK_USB_ADDRESS_3) {
 867                 command_print(CMD_CTX, "Invalid USB address: %s.", CMD_ARGV[0]);
 868                 return ERROR_FAIL;
 869         }
 870
 871         usb_address = tmp;
 872
 873         use_serial_number = false;
 874         use_usb_address = true;
 875
 876         return ERROR_OK;
 877 }
 878
 879 COMMAND_HANDLER(jlink_serial_command)
 880 {
 881         if (CMD_ARGC != 1) {
 882                 command_print(CMD_CTX, "Need exactly one argument for jlink serial.");
 883                 return ERROR_COMMAND_SYNTAX_ERROR;
 884         }
 885
 886         if (sscanf(CMD_ARGV[0], "%" SCNd32, &serial_number) != 1) {
 887                 command_print(CMD_CTX, "Invalid serial number: %s.", CMD_ARGV[0]);
 888                 return ERROR_FAIL;
 889         }
 890
 891         use_serial_number = true;
 892         use_usb_address = false;
 893
 894         return ERROR_OK;
 895 }
 896
 897 COMMAND_HANDLER(jlink_handle_hwstatus_command)
 898 {
 899         int ret;
 900         struct jaylink_hardware_status status;
 901
 902         ret = jaylink_get_hardware_status(devh, &status);
 903
 904         if (ret != JAYLINK_OK) {
 905                 command_print(CMD_CTX, "jaylink_get_hardware_status() failed: %s.",
 906                         jaylink_strerror_name(ret));
 907                 return ERROR_FAIL;
 908         }
 909
 910         command_print(CMD_CTX, "VTarget = %u.%03u V",
 911                 status.target_voltage / 1000, status.target_voltage % 1000);
 912
 913         command_print(CMD_CTX, "TCK = %u TDI = %u TDO = %u TMS = %u SRST = %u "
 914                 "TRST = %u", status.tck, status.tdi, status.tdo, status.tms,
 915                 status.tres, status.trst);
 916
 917         if (status.target_voltage < 1500)
 918                 command_print(CMD_CTX, "Target voltage too low. Check target power.");
 919
 920         return ERROR_OK;
 921 }
 922
 923 COMMAND_HANDLER(jlink_handle_free_memory_command)
 924 {
 925         int ret;
 926         uint32_t tmp;
 927
 928         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_FREE_MEMORY)) {
 929                 command_print(CMD_CTX, "Retrieval of free memory is not supported by "
 930                         "the device.");
 931                 return ERROR_OK;
 932         }
 933
 934         ret = jaylink_get_free_memory(devh, &tmp);
 935
 936         if (ret != JAYLINK_OK) {
 937                 command_print(CMD_CTX, "jaylink_get_free_memory() failed: %s.",
 938                         jaylink_strerror_name(ret));
 939                 return ERROR_FAIL;
 940         }
 941
 942         command_print(CMD_CTX, "Device has %u bytes of free memory.", tmp);
 943
 944         return ERROR_OK;
 945 }
 946
 947 COMMAND_HANDLER(jlink_handle_jlink_jtag_command)
 948 {
 949         int tmp;
 950         int version;
 951
 952         if (!CMD_ARGC) {
 953                 switch (jtag_command_version) {
 954                         case JAYLINK_JTAG_V2:
 955                                 version = 2;
 956                                 break;
 957                         case JAYLINK_JTAG_V3:
 958                                 version = 3;
 959                                 break;
 960                         default:
 961                                 return ERROR_FAIL;
 962                 }
 963
 964                 command_print(CMD_CTX, "JTAG command version: %i", version);
 965         } else if (CMD_ARGC == 1) {
 966                 if (sscanf(CMD_ARGV[0], "%i", &tmp) != 1) {
 967                         command_print(CMD_CTX, "Invalid argument: %s.", CMD_ARGV[0]);
 968                         return ERROR_COMMAND_SYNTAX_ERROR;
 969                 }
 970
 971                 switch (tmp) {
 972                         case 2:
 973                                 jtag_command_version = JAYLINK_JTAG_V2;
 974                                 break;
 975                         case 3:
 976                                 jtag_command_version = JAYLINK_JTAG_V3;
 977                                 break;
 978                         default:
 979                                 command_print(CMD_CTX, "Invalid argument: %s.", CMD_ARGV[0]);
 980                                 return ERROR_COMMAND_SYNTAX_ERROR;
 981                 }
 982         } else {
 983                 command_print(CMD_CTX, "Need exactly one argument for jlink jtag.");
 984                 return ERROR_COMMAND_SYNTAX_ERROR;
 985         }
 986
 987         return ERROR_OK;
 988 }
 989
 990 COMMAND_HANDLER(jlink_handle_target_power_command)
 991 {
 992         int ret;
 993         int enable;
 994
 995         if (CMD_ARGC != 1) {
 996                 command_print(CMD_CTX, "Need exactly one argument for jlink "
 997                         "targetpower.");
 998                 return ERROR_COMMAND_SYNTAX_ERROR;
 999         }
1000
1001         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER)) {
1002                 command_print(CMD_CTX, "Target power supply is not supported by the "
1003                         "device.");
1004                 return ERROR_OK;
1005         }
1006
1007         if (!strcmp(CMD_ARGV[0], "on")) {
1008                 enable = true;
1009         } else if (!strcmp(CMD_ARGV[0], "off")) {
1010                 enable = false;
1011         } else {
1012                 command_print(CMD_CTX, "Invalid argument: %s.", CMD_ARGV[0]);
1013                 return ERROR_FAIL;
1014         }
1015
1016         ret = jaylink_set_target_power(devh, enable);
1017
1018         if (ret != JAYLINK_OK) {
1019                 command_print(CMD_CTX, "jaylink_set_target_power() failed: %s.",
1020                         jaylink_strerror_name(ret));
1021                 return ERROR_FAIL;
1022         }
1023
1024         return ERROR_OK;
1025 }
1026
1027 static void show_config_usb_address(struct command_context *ctx)
1028 {
1029         if (config.usb_address != tmp_config.usb_address)
1030                 command_print(ctx, "USB address: %u [%u]", config.usb_address,
1031                         tmp_config.usb_address);
1032         else
1033                 command_print(ctx, "USB address: %u", config.usb_address);
1034 }
1035
1036 static void show_config_ip_address(struct command_context *ctx)
1037 {
1038         if (!memcmp(config.ip_address, tmp_config.ip_address, 4))
1039                 command_print(ctx, "IP address: %d.%d.%d.%d",
1040                         config.ip_address[3], config.ip_address[2],
1041                         config.ip_address[1], config.ip_address[0]);
1042         else
1043                 command_print(ctx, "IP address: %d.%d.%d.%d [%d.%d.%d.%d]",
1044                         config.ip_address[3], config.ip_address[2],
1045                         config.ip_address[1], config.ip_address[0],
1046                         tmp_config.ip_address[3], tmp_config.ip_address[2],
1047                         tmp_config.ip_address[1], tmp_config.ip_address[0]);
1048
1049         if (!memcmp(config.subnet_mask, tmp_config.subnet_mask, 4))
1050                 command_print(ctx, "Subnet mask: %d.%d.%d.%d",
1051                         config.subnet_mask[3], config.subnet_mask[2],
1052                         config.subnet_mask[1], config.subnet_mask[0]);
1053         else
1054                 command_print(ctx, "Subnet mask: %d.%d.%d.%d [%d.%d.%d.%d]",
1055                         config.subnet_mask[3], config.subnet_mask[2],
1056                         config.subnet_mask[1], config.subnet_mask[0],
1057                         tmp_config.subnet_mask[3], tmp_config.subnet_mask[2],
1058                         tmp_config.subnet_mask[1], tmp_config.subnet_mask[0]);
1059 }
1060
1061 static void show_config_mac_address(struct command_context *ctx)
1062 {
1063         if (!memcmp(config.mac_address, tmp_config.mac_address, 6))
1064                 command_print(ctx, "MAC address: %.02x:%.02x:%.02x:%.02x:%.02x:%.02x",
1065                         config.mac_address[5], config.mac_address[4],
1066                         config.mac_address[3], config.mac_address[2],
1067                         config.mac_address[1], config.mac_address[0]);
1068         else
1069                 command_print(ctx, "MAC address: %.02x:%.02x:%.02x:%.02x:%.02x:%.02x "
1070                         "[%.02x:%.02x:%.02x:%.02x:%.02x:%.02x]",
1071                         config.mac_address[5], config.mac_address[4],
1072                         config.mac_address[3], config.mac_address[2],
1073                         config.mac_address[1], config.mac_address[0],
1074                         tmp_config.mac_address[5], tmp_config.mac_address[4],
1075                         tmp_config.mac_address[3], tmp_config.mac_address[2],
1076                         tmp_config.mac_address[1], tmp_config.mac_address[0]);
1077 }
1078
1079 static void show_config_target_power(struct command_context *ctx)
1080 {
1081         const char *target_power;
1082         const char *current_target_power;
1083
1084         if (!config.target_power)
1085                 target_power = "off";
1086         else
1087                 target_power = "on";
1088
1089         if (!tmp_config.target_power)
1090                 current_target_power = "off";
1091         else
1092                 current_target_power = "on";
1093
1094         if (config.target_power != tmp_config.target_power)
1095                 command_print(ctx, "Target power supply: %s [%s]", target_power,
1096                         current_target_power);
1097         else
1098                 command_print(ctx, "Target power supply: %s", target_power);
1099 }
1100
1101 static void show_config(struct command_context *ctx)
1102 {
1103         command_print(ctx, "J-Link device configuration:");
1104
1105         show_config_usb_address(ctx);
1106
1107         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER))
1108                 show_config_target_power(ctx);
1109
1110         if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_ETHERNET)) {
1111                 show_config_ip_address(ctx);
1112                 show_config_mac_address(ctx);
1113         }
1114 }
1115
1116 static int poll_trace(uint8_t *buf, size_t *size)
1117 {
1118         int ret;
1119         uint32_t length;
1120
1121         length = *size;
1122
1123         ret = jaylink_swo_read(devh, buf, &length);
1124
1125         if (ret != JAYLINK_OK) {
1126                 LOG_ERROR("jaylink_swo_read() failed: %s.", jaylink_strerror_name(ret));
1127                 return ERROR_FAIL;
1128         }
1129
1130         *size = length;
1131
1132         return ERROR_OK;
1133 }
1134
1135 static uint32_t calculate_trace_buffer_size(void)
1136 {
1137         int ret;
1138         uint32_t tmp;
1139
1140         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_FREE_MEMORY))
1141                 return 0;
1142
1143         ret = jaylink_get_free_memory(devh, &tmp);
1144
1145         if (ret != JAYLINK_OK) {
1146                 LOG_ERROR("jaylink_get_free_memory() failed: %s.",
1147                         jaylink_strerror_name(ret));
1148                 return ERROR_FAIL;
1149         }
1150
1151         if (tmp > 0x3fff || tmp <= 0x600)
1152                 tmp = tmp >> 1;
1153         else
1154                 tmp = tmp - 0x400;
1155
1156         return tmp & 0xffffff00;
1157 }
1158
1159 static bool check_trace_freq(struct jaylink_swo_speed speed,
1160                 uint32_t trace_freq)
1161 {
1162         double min;
1163         double deviation;
1164         uint32_t divider;
1165
1166         min = fabs(1.0 - (speed.freq / ((double)trace_freq * speed.min_div)));
1167
1168         for (divider = speed.min_div; divider < speed.max_div; divider++) {
1169                 deviation = fabs(1.0 - (speed.freq / ((double)trace_freq * divider)));
1170
1171                 if (deviation < 0.03) {
1172                         LOG_DEBUG("Found suitable frequency divider %u with deviation of "
1173                                 "%.02f %%.", divider, deviation);
1174                         return true;
1175                 }
1176
1177                 if (deviation < min)
1178                         min = deviation;
1179         }
1180
1181         LOG_ERROR("Selected trace frequency is not supported by the device. "
1182                 "Please choose a different trace frequency.");
1183         LOG_ERROR("Maximum permitted deviation is 3.00 %%, but only %.02f %% "
1184                 "could be achieved.", min * 100);
1185
1186         return false;
1187 }
1188
1189 static int config_trace(bool enabled, enum tpio_pin_protocol pin_protocol,
1190                 uint32_t port_size, unsigned int *trace_freq)
1191 {
1192         int ret;
1193         uint32_t buffer_size;
1194         struct jaylink_swo_speed speed;
1195
1196         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SWO)) {
1197                 LOG_ERROR("Trace capturing is not supported by the device.");
1198                 return ERROR_FAIL;
1199         }
1200
1201         if (pin_protocol != ASYNC_UART) {
1202                 LOG_ERROR("Selected pin protocol is not supported.");
1203                 return ERROR_FAIL;
1204         }
1205
1206         trace_enabled = enabled;
1207
1208         ret = jaylink_swo_stop(devh);
1209
1210         if (ret != JAYLINK_OK) {
1211                 LOG_ERROR("jaylink_swo_stop() failed: %s.", jaylink_strerror_name(ret));
1212                 return ERROR_FAIL;
1213         }
1214
1215         if (!enabled) {
1216                 /*
1217                  * Adjust the SWD transaction buffer size as stopping SWO capturing
1218                  * deallocates device internal memory.
1219                  */
1220                 if (!adjust_swd_buffer_size())
1221                         return ERROR_FAIL;
1222
1223                 return ERROR_OK;
1224         }
1225
1226         buffer_size = calculate_trace_buffer_size();
1227
1228         if (!buffer_size) {
1229                 LOG_ERROR("Not enough free device memory to start trace capturing.");
1230                 return ERROR_FAIL;
1231         }
1232
1233         ret = jaylink_swo_get_speeds(devh, JAYLINK_SWO_MODE_UART, &speed);
1234
1235         if (ret != JAYLINK_OK) {
1236                 LOG_ERROR("jaylink_swo_get_speeds() failed: %s.",
1237                         jaylink_strerror_name(ret));
1238                 return ERROR_FAIL;
1239         }
1240
1241         if (!*trace_freq)
1242                 *trace_freq = speed.freq / speed.min_div;
1243
1244         if (!check_trace_freq(speed, *trace_freq))
1245                 return ERROR_FAIL;
1246
1247         LOG_DEBUG("Using %u bytes device memory for trace capturing.", buffer_size);
1248
1249         ret = jaylink_swo_start(devh, JAYLINK_SWO_MODE_UART, *trace_freq,
1250                 buffer_size);
1251
1252         if (ret != JAYLINK_OK) {
1253                 LOG_ERROR("jaylink_start_swo() failed: %s.",
1254                         jaylink_strerror_name(ret));
1255                 return ERROR_FAIL;
1256         }
1257
1258         /*
1259          * Adjust the SWD transaction buffer size as starting SWO capturing
1260          * allocates device internal memory.
1261          */
1262         if (!adjust_swd_buffer_size())
1263                 return ERROR_FAIL;
1264
1265         return ERROR_OK;
1266 }
1267
1268 COMMAND_HANDLER(jlink_handle_config_usb_address_command)
1269 {
1270         uint8_t tmp;
1271
1272         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
1273                 command_print(CMD_CTX, "Reading configuration is not supported by the "
1274                         "device.");
1275                 return ERROR_OK;
1276         }
1277
1278         if (!CMD_ARGC) {
1279                 show_config_usb_address(CMD_CTX);
1280         } else if (CMD_ARGC == 1) {
1281                 if (sscanf(CMD_ARGV[0], "%" SCNd8, &tmp) != 1) {
1282                         command_print(CMD_CTX, "Invalid USB address: %s.", CMD_ARGV[0]);
1283                         return ERROR_FAIL;
1284                 }
1285
1286                 if (tmp > JAYLINK_USB_ADDRESS_3) {
1287                         command_print(CMD_CTX, "Invalid USB address: %u.", tmp);
1288                         return ERROR_FAIL;
1289                 }
1290
1291                 tmp_config.usb_address = tmp;
1292         } else {
1293                 command_print(CMD_CTX, "Need exactly one argument for jlink config "
1294                         "usb.");
1295                 return ERROR_COMMAND_SYNTAX_ERROR;
1296         }
1297
1298         return ERROR_OK;
1299 }
1300
1301 COMMAND_HANDLER(jlink_handle_config_target_power_command)
1302 {
1303         int enable;
1304
1305         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
1306                 command_print(CMD_CTX, "Reading configuration is not supported by the "
1307                         "device.");
1308                 return ERROR_OK;
1309         }
1310
1311         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SET_TARGET_POWER)) {
1312                 command_print(CMD_CTX, "Target power supply is not supported by the "
1313                         "device.");
1314                 return ERROR_OK;
1315         }
1316
1317         if (!CMD_ARGC) {
1318                 show_config_target_power(CMD_CTX);
1319         } else if (CMD_ARGC == 1) {
1320                 if (!strcmp(CMD_ARGV[0], "on")) {
1321                         enable = true;
1322                 } else if (!strcmp(CMD_ARGV[0], "off")) {
1323                         enable = false;
1324                 } else {
1325                         command_print(CMD_CTX, "Invalid argument: %s.", CMD_ARGV[0]);
1326                         return ERROR_FAIL;
1327                 }
1328
1329                 tmp_config.target_power = enable;
1330         } else {
1331                 command_print(CMD_CTX, "Need exactly one argument for jlink config "
1332                         "targetpower.");
1333                 return ERROR_COMMAND_SYNTAX_ERROR;
1334         }
1335
1336         return ERROR_OK;
1337 }
1338
1339 COMMAND_HANDLER(jlink_handle_config_mac_address_command)
1340 {
1341         uint8_t addr[6];
1342         int i;
1343         char *e;
1344         const char *str;
1345
1346         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
1347                 command_print(CMD_CTX, "Reading configuration is not supported by the "
1348                         "device.");
1349                 return ERROR_OK;
1350         }
1351
1352         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_ETHERNET)) {
1353                 command_print(CMD_CTX, "Ethernet connectivity is not supported by the "
1354                         "device.");
1355                 return ERROR_OK;
1356         }
1357
1358         if (!CMD_ARGC) {
1359                 show_config_mac_address(CMD_CTX);
1360         } else if (CMD_ARGC == 1) {
1361                 str = CMD_ARGV[0];
1362
1363                 if ((strlen(str) != 17) || (str[2] != ':' || str[5] != ':' || \
1364                                 str[8] != ':' || str[11] != ':' || str[14] != ':')) {
1365                         command_print(CMD_CTX, "Invalid MAC address format.");
1366                         return ERROR_COMMAND_SYNTAX_ERROR;
1367                 }
1368
1369                 for (i = 5; i >= 0; i--) {
1370                         addr[i] = strtoul(str, &e, 16);
1371                         str = e + 1;
1372                 }
1373
1374                 if (!(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5])) {
1375                         command_print(CMD_CTX, "Invalid MAC address: zero address.");
1376                         return ERROR_COMMAND_SYNTAX_ERROR;
1377                 }
1378
1379                 if (!(0x01 & addr[0])) {
1380                         command_print(CMD_CTX, "Invalid MAC address: multicast address.");
1381                         return ERROR_COMMAND_SYNTAX_ERROR;
1382                 }
1383
1384                 memcpy(tmp_config.mac_address, addr, sizeof(addr));
1385         } else {
1386                 command_print(CMD_CTX, "Need exactly one argument for jlink config "
1387                         " mac.");
1388                 return ERROR_COMMAND_SYNTAX_ERROR;
1389         }
1390
1391         return ERROR_OK;
1392 }
1393
1394 static bool string_to_ip(const char *s, uint8_t *ip, int *pos)
1395 {
1396         uint8_t lip[4];
1397         char *e;
1398         const char *s_save = s;
1399         int i;
1400
1401         if (!s)
1402                 return false;
1403
1404         for (i = 0; i < 4; i++) {
1405                 lip[i] = strtoul(s, &e, 10);
1406
1407                 if (*e != '.' && i != 3)
1408                         return false;
1409
1410                 s = e + 1;
1411         }
1412
1413         *pos = e - s_save;
1414         memcpy(ip, lip, sizeof(lip));
1415
1416         return true;
1417 }
1418
1419 static void cpy_ip(uint8_t *dst, uint8_t *src)
1420 {
1421         int i, j;
1422
1423         for (i = 0, j = 3; i < 4; i++, j--)
1424                 dst[i] = src[j];
1425 }
1426
1427 COMMAND_HANDLER(jlink_handle_config_ip_address_command)
1428 {
1429         uint8_t ip_address[4];
1430         uint32_t subnet_mask = 0;
1431         int i, len;
1432         uint8_t subnet_bits = 24;
1433
1434         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
1435                 command_print(CMD_CTX, "Reading configuration is not supported by the "
1436                         "device.");
1437                 return ERROR_OK;
1438         }
1439
1440         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_ETHERNET)) {
1441                 command_print(CMD_CTX, "Ethernet connectivity is not supported by the "
1442                         "device.");
1443                 return ERROR_OK;
1444         }
1445
1446         if (!CMD_ARGC) {
1447                 show_config_ip_address(CMD_CTX);
1448         } else {
1449                 if (!string_to_ip(CMD_ARGV[0], ip_address, &i))
1450                         return ERROR_COMMAND_SYNTAX_ERROR;
1451
1452                 len = strlen(CMD_ARGV[0]);
1453
1454                 /* Check for format A.B.C.D/E. */
1455                 if (i < len) {
1456                         if (CMD_ARGV[0][i] != '/')
1457                                 return ERROR_COMMAND_SYNTAX_ERROR;
1458
1459                         COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0] + i + 1, subnet_bits);
1460                 } else if (CMD_ARGC > 1) {
1461                         if (!string_to_ip(CMD_ARGV[1], (uint8_t *)&subnet_mask, &i))
1462                                 return ERROR_COMMAND_SYNTAX_ERROR;
1463                 }
1464
1465                 if (!subnet_mask)
1466                         subnet_mask = (uint32_t)(subnet_bits < 32 ?
1467                                 ((1ULL << subnet_bits) - 1) : 0xffffffff);
1468
1469                 cpy_ip(tmp_config.ip_address, ip_address);
1470                 cpy_ip(tmp_config.subnet_mask, (uint8_t *)&subnet_mask);
1471         }
1472
1473         return ERROR_OK;
1474 }
1475
1476 COMMAND_HANDLER(jlink_handle_config_reset_command)
1477 {
1478         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG))
1479                 return ERROR_OK;
1480
1481         memcpy(&tmp_config, &config, sizeof(struct device_config));
1482
1483         return ERROR_OK;
1484 }
1485
1486
1487 COMMAND_HANDLER(jlink_handle_config_write_command)
1488 {
1489         int ret;
1490
1491         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
1492                 command_print(CMD_CTX, "Reading configuration is not supported by the "
1493                         "device.");
1494                 return ERROR_OK;
1495         }
1496
1497         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_WRITE_CONFIG)) {
1498                 command_print(CMD_CTX, "Writing configuration is not supported by the "
1499                         "device.");
1500                 return ERROR_OK;
1501         }
1502
1503         if (!memcmp(&config, &tmp_config, sizeof(struct device_config))) {
1504                 command_print(CMD_CTX, "Operation not performed due to no changes in "
1505                         "the configuration.");
1506                 return ERROR_OK;
1507         }
1508
1509         ret = jaylink_write_raw_config(devh, (const uint8_t *)&tmp_config);
1510
1511         if (ret != JAYLINK_OK) {
1512                 LOG_ERROR("jaylink_write_raw_config() failed: %s.",
1513                         jaylink_strerror_name(ret));
1514                 return ERROR_FAIL;
1515         }
1516
1517         if (!read_device_config(&config)) {
1518                 LOG_ERROR("Failed to read device configuration for verification.");
1519                 return ERROR_FAIL;
1520         }
1521
1522         if (memcmp(&config, &tmp_config, sizeof(struct device_config))) {
1523                 LOG_ERROR("Verification of device configuration failed. Please check "
1524                         "your device.");
1525                 return ERROR_FAIL;
1526         }
1527
1528         memcpy(&tmp_config, &config, sizeof(struct device_config));
1529         command_print(CMD_CTX, "The new device configuration applies after power "
1530                 "cycling the J-Link device.");
1531
1532         return ERROR_OK;
1533 }
1534
1535 COMMAND_HANDLER(jlink_handle_config_command)
1536 {
1537         if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_READ_CONFIG)) {
1538                 command_print(CMD_CTX, "Device doesn't support reading configuration.");
1539                 return ERROR_OK;
1540         }
1541
1542         if (CMD_ARGC == 0)
1543                 show_config(CMD_CTX);
1544
1545         return ERROR_OK;
1546 }
1547
1548 static const struct command_registration jlink_config_subcommand_handlers[] = {
1549         {
1550                 .name = "usb",
1551                 .handler = &jlink_handle_config_usb_address_command,
1552                 .mode = COMMAND_EXEC,
1553                 .help = "set the USB address",
1554                 .usage = "[0-3]",
1555         },
1556         {
1557                 .name = "targetpower",
1558                 .handler = &jlink_handle_config_target_power_command,
1559                 .mode = COMMAND_EXEC,
1560                 .help = "set the target power supply",
1561                 .usage = "[on|off]"
1562         },
1563         {
1564                 .name = "mac",
1565                 .handler = &jlink_handle_config_mac_address_command,
1566                 .mode = COMMAND_EXEC,
1567                 .help = "set the MAC Address",
1568                 .usage = "[ff:ff:ff:ff:ff:ff]",
1569         },
1570         {
1571                 .name = "ip",
1572                 .handler = &jlink_handle_config_ip_address_command,
1573                 .mode = COMMAND_EXEC,
1574                 .help = "set the IP address, where A.B.C.D is the IP address, "
1575                         "E the bit of the subnet mask, F.G.H.I the subnet mask",
1576                 .usage = "[A.B.C.D[/E] [F.G.H.I]]",
1577         },
1578         {
1579                 .name = "reset",
1580                 .handler = &jlink_handle_config_reset_command,
1581                 .mode = COMMAND_EXEC,
1582                 .help = "undo configuration changes"
1583         },
1584         {
1585                 .name = "write",
1586                 .handler = &jlink_handle_config_write_command,
1587                 .mode = COMMAND_EXEC,
1588                 .help = "write configuration to the device"
1589         },
1590         COMMAND_REGISTRATION_DONE
1591 };
1592
1593 static const struct command_registration jlink_subcommand_handlers[] = {
1594         {
1595                 .name = "jtag",
1596                 .handler = &jlink_handle_jlink_jtag_command,
1597                 .mode = COMMAND_EXEC,
1598                 .help = "select the JTAG command version",
1599                 .usage = "[2|3]",
1600         },
1601         {
1602                 .name = "targetpower",
1603                 .handler = &jlink_handle_target_power_command,
1604                 .mode = COMMAND_EXEC,
1605                 .help = "set the target power supply",
1606                 .usage = "<on|off>"
1607         },
1608         {
1609                 .name = "freemem",
1610                 .handler = &jlink_handle_free_memory_command,
1611                 .mode = COMMAND_EXEC,
1612                 .help = "show free device memory"
1613         },
1614         {
1615                 .name = "hwstatus",
1616                 .handler = &jlink_handle_hwstatus_command,
1617                 .mode = COMMAND_EXEC,
1618                 .help = "show the hardware status"
1619         },
1620         {
1621                 .name = "usb",
1622                 .handler = &jlink_usb_command,
1623                 .mode = COMMAND_CONFIG,
1624                 .help = "set the USB address of the device that should be used",
1625                 .usage = "<0-3>"
1626         },
1627         {
1628                 .name = "serial",
1629                 .handler = &jlink_serial_command,
1630                 .mode = COMMAND_CONFIG,
1631                 .help = "set the serial number of the device that should be used",
1632                 .usage = "<serial number>"
1633         },
1634         {
1635                 .name = "config",
1636                 .handler = &jlink_handle_config_command,
1637                 .mode = COMMAND_EXEC,
1638                 .help = "access the device configuration. If no argument is given "
1639                         "this will show the device configuration",
1640                 .chain = jlink_config_subcommand_handlers,
1641         },
1642         COMMAND_REGISTRATION_DONE
1643 };
1644
1645 static const struct command_registration jlink_command_handlers[] = {
1646         {
1647                 .name = "jlink",
1648                 .mode = COMMAND_ANY,
1649                 .help = "perform jlink management",
1650                 .chain = jlink_subcommand_handlers,
1651         },
1652         COMMAND_REGISTRATION_DONE
1653 };
1654
1655 static int jlink_swd_init(void)
1656 {
1657         iface = JAYLINK_TIF_SWD;
1658
1659         return ERROR_OK;
1660 }
1661
1662 static void jlink_swd_write_reg(uint8_t cmd, uint32_t value, uint32_t ap_delay_clk)
1663 {
1664         assert(!(cmd & SWD_CMD_RnW));
1665         jlink_swd_queue_cmd(cmd, NULL, value, ap_delay_clk);
1666 }
1667
1668 static void jlink_swd_read_reg(uint8_t cmd, uint32_t *value, uint32_t ap_delay_clk)
1669 {
1670         assert(cmd & SWD_CMD_RnW);
1671         jlink_swd_queue_cmd(cmd, value, 0, ap_delay_clk);
1672 }
1673
1674 static int_least32_t jlink_swd_frequency(int_least32_t hz)
1675 {
1676         if (hz > 0)
1677                 jlink_speed(hz / 1000);
1678
1679         return hz;
1680 }
1681
1682 /***************************************************************************/
1683 /* J-Link tap functions */
1684
1685 static unsigned tap_length;
1686 /* In SWD mode use tms buffer for direction control */
1687 static uint8_t tms_buffer[JLINK_TAP_BUFFER_SIZE];
1688 static uint8_t tdi_buffer[JLINK_TAP_BUFFER_SIZE];
1689 static uint8_t tdo_buffer[JLINK_TAP_BUFFER_SIZE];
1690
1691 struct pending_scan_result {
1692         /** First bit position in tdo_buffer to read. */
1693         unsigned first;
1694         /** Number of bits to read. */
1695         unsigned length;
1696         /** Location to store the result */
1697         void *buffer;
1698         /** Offset in the destination buffer */
1699         unsigned buffer_offset;
1700 };
1701
1702 #define MAX_PENDING_SCAN_RESULTS 256
1703
1704 static int pending_scan_results_length;
1705 static struct pending_scan_result pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
1706
1707 static void jlink_tap_init(void)
1708 {
1709         tap_length = 0;
1710         pending_scan_results_length = 0;
1711         memset(tms_buffer, 0, sizeof(tdi_buffer));
1712 }
1713
1714 static void jlink_clock_data(const uint8_t *out, unsigned out_offset,
1715                              const uint8_t *tms_out, unsigned tms_offset,
1716                              uint8_t *in, unsigned in_offset,
1717                              unsigned length)
1718 {
1719         do {
1720                 unsigned available_length = JLINK_TAP_BUFFER_SIZE - tap_length / 8;
1721
1722                 if (!available_length ||
1723                     (in && pending_scan_results_length == MAX_PENDING_SCAN_RESULTS)) {
1724                         if (jlink_flush() != ERROR_OK)
1725                                 return;
1726                         available_length = JLINK_TAP_BUFFER_SIZE;
1727                 }
1728
1729                 struct pending_scan_result *pending_scan_result =
1730                         &pending_scan_results_buffer[pending_scan_results_length];
1731
1732                 unsigned scan_length = length > available_length ?
1733                         available_length : length;
1734
1735                 if (out)
1736                         buf_set_buf(out, out_offset, tdi_buffer, tap_length, scan_length);
1737                 if (tms_out)
1738                         buf_set_buf(tms_out, tms_offset, tms_buffer, tap_length, scan_length);
1739
1740                 if (in) {
1741                         pending_scan_result->first = tap_length;
1742                         pending_scan_result->length = scan_length;
1743                         pending_scan_result->buffer = in;
1744                         pending_scan_result->buffer_offset = in_offset;
1745                         pending_scan_results_length++;
1746                 }
1747
1748                 tap_length += scan_length;
1749                 out_offset += scan_length;
1750                 tms_offset += scan_length;
1751                 in_offset += scan_length;
1752                 length -= scan_length;
1753         } while (length > 0);
1754 }
1755
1756 static int jlink_flush(void)
1757 {
1758         int i;
1759         int ret;
1760
1761         if (!tap_length)
1762                 return ERROR_OK;
1763
1764         jlink_last_state = jtag_debug_state_machine(tms_buffer, tdi_buffer,
1765                 tap_length, jlink_last_state);
1766
1767         ret = jaylink_jtag_io(devh, tms_buffer, tdi_buffer, tdo_buffer,
1768                 tap_length, jtag_command_version);
1769
1770         if (ret != JAYLINK_OK) {
1771                 LOG_ERROR("jaylink_jtag_io() failed: %s.", jaylink_strerror_name(ret));
1772                 jlink_tap_init();
1773                 return ERROR_JTAG_QUEUE_FAILED;
1774         }
1775
1776         for (i = 0; i < pending_scan_results_length; i++) {
1777                 struct pending_scan_result *p = &pending_scan_results_buffer[i];
1778
1779                 buf_set_buf(tdo_buffer, p->first, p->buffer,
1780                             p->buffer_offset, p->length);
1781
1782                 DEBUG_JTAG_IO("Pending scan result, length = %d.", p->length);
1783         }
1784
1785         jlink_tap_init();
1786
1787         return ERROR_OK;
1788 }
1789
1790 static void fill_buffer(uint8_t *buf, uint32_t val, uint32_t len)
1791 {
1792         unsigned int tap_pos = tap_length;
1793
1794         while (len > 32) {
1795                 buf_set_u32(buf, tap_pos, 32, val);
1796                 len -= 32;
1797                 tap_pos += 32;
1798         }
1799
1800         if (len)
1801                 buf_set_u32(buf, tap_pos, len, val);
1802 }
1803
1804 static void jlink_queue_data_out(const uint8_t *data, uint32_t len)
1805 {
1806         const uint32_t dir_out = 0xffffffff;
1807
1808         if (data)
1809                 bit_copy(tdi_buffer, tap_length, data, 0, len);
1810         else
1811                 fill_buffer(tdi_buffer, 0, len);
1812
1813         fill_buffer(tms_buffer, dir_out, len);
1814         tap_length += len;
1815 }
1816
1817 static void jlink_queue_data_in(uint32_t len)
1818 {
1819         const uint32_t dir_in = 0;
1820
1821         fill_buffer(tms_buffer, dir_in, len);
1822         tap_length += len;
1823 }
1824
1825 static int jlink_swd_switch_seq(enum swd_special_seq seq)
1826 {
1827         const uint8_t *s;
1828         unsigned int s_len;
1829
1830         switch (seq) {
1831                 case LINE_RESET:
1832                         LOG_DEBUG("SWD line reset");
1833                         s = swd_seq_line_reset;
1834                         s_len = swd_seq_line_reset_len;
1835                         break;
1836                 case JTAG_TO_SWD:
1837                         LOG_DEBUG("JTAG-to-SWD");
1838                         s = swd_seq_jtag_to_swd;
1839                         s_len = swd_seq_jtag_to_swd_len;
1840                         break;
1841                 case SWD_TO_JTAG:
1842                         LOG_DEBUG("SWD-to-JTAG");
1843                         s = swd_seq_swd_to_jtag;
1844                         s_len = swd_seq_swd_to_jtag_len;
1845                         break;
1846                 default:
1847                         LOG_ERROR("Sequence %d not supported.", seq);
1848                         return ERROR_FAIL;
1849         }
1850
1851         jlink_queue_data_out(s, s_len);
1852
1853         return ERROR_OK;
1854 }
1855
1856 static int jlink_swd_run_queue(void)
1857 {
1858         int i;
1859         int ret;
1860
1861         LOG_DEBUG("Executing %d queued transactions.", pending_scan_results_length);
1862
1863         if (queued_retval != ERROR_OK) {
1864                 LOG_DEBUG("Skipping due to previous errors: %d.", queued_retval);
1865                 goto skip;
1866         }
1867
1868         /*
1869          * A transaction must be followed by another transaction or at least 8 idle
1870          * cycles to ensure that data is clocked through the AP.
1871          */
1872         jlink_queue_data_out(NULL, 8);
1873
1874         ret = jaylink_swd_io(devh, tms_buffer, tdi_buffer, tdo_buffer, tap_length);
1875
1876         if (ret != JAYLINK_OK) {
1877                 LOG_ERROR("jaylink_swd_io() failed: %s.", jaylink_strerror_name(ret));
1878                 goto skip;
1879         }
1880
1881         for (i = 0; i < pending_scan_results_length; i++) {
1882                 int ack = buf_get_u32(tdo_buffer, pending_scan_results_buffer[i].first, 3);
1883
1884                 if (ack != SWD_ACK_OK) {
1885                         LOG_DEBUG("SWD ack not OK: %d %s", ack,
1886                                   ack == SWD_ACK_WAIT ? "WAIT" : ack == SWD_ACK_FAULT ? "FAULT" : "JUNK");
1887                         queued_retval = ack == SWD_ACK_WAIT ? ERROR_WAIT : ERROR_FAIL;
1888                         goto skip;
1889                 } else if (pending_scan_results_buffer[i].length) {
1890                         uint32_t data = buf_get_u32(tdo_buffer, 3 + pending_scan_results_buffer[i].first, 32);
1891                         int parity = buf_get_u32(tdo_buffer, 3 + 32 + pending_scan_results_buffer[i].first, 1);
1892
1893                         if (parity != parity_u32(data)) {
1894                                 LOG_ERROR("SWD: Read data parity mismatch.");
1895                                 queued_retval = ERROR_FAIL;
1896                                 goto skip;
1897                         }
1898
1899                         if (pending_scan_results_buffer[i].buffer)
1900                                 *(uint32_t *)pending_scan_results_buffer[i].buffer = data;
1901                 }
1902         }
1903
1904 skip:
1905         jlink_tap_init();
1906         ret = queued_retval;
1907         queued_retval = ERROR_OK;
1908
1909         return ret;
1910 }
1911
1912 static void jlink_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data, uint32_t ap_delay_clk)
1913 {
1914         uint8_t data_parity_trn[DIV_ROUND_UP(32 + 1, 8)];
1915         if (tap_length + 46 + 8 + ap_delay_clk >= sizeof(tdi_buffer) * 8 ||
1916             pending_scan_results_length == MAX_PENDING_SCAN_RESULTS) {
1917                 /* Not enough room in the queue. Run the queue. */
1918                 queued_retval = jlink_swd_run_queue();
1919         }
1920
1921         if (queued_retval != ERROR_OK)
1922                 return;
1923
1924         cmd |= SWD_CMD_START | SWD_CMD_PARK;
1925
1926         jlink_queue_data_out(&cmd, 8);
1927
1928         pending_scan_results_buffer[pending_scan_results_length].first = tap_length;
1929
1930         if (cmd & SWD_CMD_RnW) {
1931                 /* Queue a read transaction. */
1932                 pending_scan_results_buffer[pending_scan_results_length].length = 32;
1933                 pending_scan_results_buffer[pending_scan_results_length].buffer = dst;
1934
1935                 jlink_queue_data_in(1 + 3 + 32 + 1 + 1);
1936         } else {
1937                 /* Queue a write transaction. */
1938                 pending_scan_results_buffer[pending_scan_results_length].length = 0;
1939                 jlink_queue_data_in(1 + 3 + 1);
1940
1941                 buf_set_u32(data_parity_trn, 0, 32, data);
1942                 buf_set_u32(data_parity_trn, 32, 1, parity_u32(data));
1943
1944                 jlink_queue_data_out(data_parity_trn, 32 + 1);
1945         }
1946
1947         pending_scan_results_length++;
1948
1949         /* Insert idle cycles after AP accesses to avoid WAIT. */
1950         if (cmd & SWD_CMD_APnDP)
1951                 jlink_queue_data_out(NULL, ap_delay_clk);
1952 }
1953
1954 static const struct swd_driver jlink_swd = {
1955         .init = &jlink_swd_init,
1956         .frequency = &jlink_swd_frequency,
1957         .switch_seq = &jlink_swd_switch_seq,
1958         .read_reg = &jlink_swd_read_reg,
1959         .write_reg = &jlink_swd_write_reg,
1960         .run = &jlink_swd_run_queue,
1961 };
1962
1963 static const char * const jlink_transports[] = { "jtag", "swd", NULL };
1964
1965 struct jtag_interface jlink_interface = {
1966         .name = "jlink",
1967         .commands = jlink_command_handlers,
1968         .transports = jlink_transports,
1969         .swd = &jlink_swd,
1970         .execute_queue = &jlink_execute_queue,
1971         .speed = &jlink_speed,
1972         .speed_div = &jlink_speed_div,
1973         .khz = &jlink_khz,
1974         .init = &jlink_init,
1975         .quit = &jlink_quit,
1976         .config_trace = &config_trace,
1977         .poll_trace = &poll_trace,
1978 };