1 /***************************************************************************
2 * Copyright (C) 2009-2010 by Simon Qian <SimonQian@SimonQian.com> *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
18 ***************************************************************************/
20 /* Versaloon is a programming tool for multiple MCUs.
21 * It's distributed under GPLv3.
22 * You can find it at http://www.Versaloon.com/.
29 #include <jtag/interface.h>
30 #include <jtag/commands.h>
34 #include "versaloon/versaloon_include.h"
35 #include "versaloon/versaloon.h"
37 static int vsllink_tms_offset;
39 struct pending_scan_result {
42 int length; /* Number of bits to read */
43 struct scan_command *command; /* Corresponding scan command */
46 bool last; /* indicate the last scan pending */
49 #define MAX_PENDING_SCAN_RESULTS 256
51 static int pending_scan_results_length;
52 static struct pending_scan_result
53 pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
55 /* Queue command functions */
56 static void vsllink_end_state(tap_state_t state);
57 static void vsllink_state_move(void);
58 static void vsllink_path_move(int num_states, tap_state_t *path);
59 static void vsllink_tms(int num_bits, const uint8_t *bits);
60 static void vsllink_runtest(int num_cycles);
61 static void vsllink_stableclocks(int num_cycles, int tms);
62 static void vsllink_scan(bool ir_scan, enum scan_type type,
63 uint8_t *buffer, int scan_size, struct scan_command *command);
64 static void vsllink_reset(int trst, int srst);
66 /* VSLLink tap buffer functions */
67 static void vsllink_tap_append_step(int tms, int tdi);
68 static void vsllink_tap_init(void);
69 static int vsllink_tap_execute(void);
70 static void vsllink_tap_ensure_pending(int scans);
71 static void vsllink_tap_append_scan(int length, uint8_t *buffer,
72 struct scan_command *command);
74 /* VSLLink SWD functions */
75 static int_least32_t vsllink_swd_frequency(int_least32_t hz);
76 static int vsllink_swd_switch_seq(enum swd_special_seq seq);
78 /* VSLLink lowlevel functions */
80 struct libusb_context *libusb_ctx;
81 struct libusb_device_handle *usb_device_handle;
84 static int vsllink_usb_open(struct vsllink *vsllink);
85 static void vsllink_usb_close(struct vsllink *vsllink);
87 #if defined _DEBUG_JTAG_IO_
88 static void vsllink_debug_buffer(uint8_t *buffer, int length);
91 static int tap_length;
92 static int tap_buffer_size;
93 static uint8_t *tms_buffer;
94 static uint8_t *tdi_buffer;
95 static uint8_t *tdo_buffer;
99 static struct vsllink *vsllink_handle;
101 static int vsllink_execute_queue(void)
103 struct jtag_command *cmd = jtag_command_queue;
108 DEBUG_JTAG_IO("-------------------------------------"
110 "-------------------------------------");
112 while (cmd != NULL) {
115 DEBUG_JTAG_IO("runtest %i cycles, end in %s",
116 cmd->cmd.runtest->num_cycles,
117 tap_state_name(cmd->cmd.runtest->end_state));
119 vsllink_end_state(cmd->cmd.runtest->end_state);
120 vsllink_runtest(cmd->cmd.runtest->num_cycles);
124 DEBUG_JTAG_IO("statemove end in %s",
125 tap_state_name(cmd->cmd.statemove->end_state));
127 vsllink_end_state(cmd->cmd.statemove->end_state);
128 vsllink_state_move();
132 DEBUG_JTAG_IO("pathmove: %i states, end in %s",
133 cmd->cmd.pathmove->num_states,
134 tap_state_name(cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]));
136 vsllink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
140 DEBUG_JTAG_IO("JTAG Scan...");
142 vsllink_end_state(cmd->cmd.scan->end_state);
144 scan_size = jtag_build_buffer(
145 cmd->cmd.scan, &buffer);
147 if (cmd->cmd.scan->ir_scan)
149 "JTAG Scan write IR(%d bits), "
152 tap_state_name(cmd->cmd.scan->end_state));
156 "JTAG Scan write DR(%d bits), "
159 tap_state_name(cmd->cmd.scan->end_state));
161 #ifdef _DEBUG_JTAG_IO_
162 vsllink_debug_buffer(buffer,
163 DIV_ROUND_UP(scan_size, 8));
166 type = jtag_scan_type(cmd->cmd.scan);
168 vsllink_scan(cmd->cmd.scan->ir_scan,
169 type, buffer, scan_size,
174 DEBUG_JTAG_IO("reset trst: %i srst %i",
175 cmd->cmd.reset->trst,
176 cmd->cmd.reset->srst);
178 vsllink_tap_execute();
180 if (cmd->cmd.reset->trst == 1)
181 tap_set_state(TAP_RESET);
183 vsllink_reset(cmd->cmd.reset->trst,
184 cmd->cmd.reset->srst);
188 DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
189 vsllink_tap_execute();
190 jtag_sleep(cmd->cmd.sleep->us);
193 case JTAG_STABLECLOCKS:
194 DEBUG_JTAG_IO("add %d clocks",
195 cmd->cmd.stableclocks->num_cycles);
197 switch (tap_get_state()) {
199 /* tms must be '1' to stay
209 /* else, tms should be '0' */
212 /* above stable states are OK */
214 LOG_ERROR("jtag_add_clocks() "
215 "in non-stable state \"%s\"",
216 tap_state_name(tap_get_state())
220 vsllink_stableclocks(cmd->cmd.stableclocks->num_cycles, scan_size);
224 DEBUG_JTAG_IO("add %d jtag tms",
225 cmd->cmd.tms->num_bits);
227 vsllink_tms(cmd->cmd.tms->num_bits, cmd->cmd.tms->bits);
231 LOG_ERROR("BUG: unknown JTAG command type "
232 "encountered: %d", cmd->type);
238 return vsllink_tap_execute();
241 static int vsllink_speed(int speed)
244 vsllink_swd_frequency(speed * 1000);
248 versaloon_interface.adaptors.jtag_raw.config(0, (uint16_t)speed);
249 return versaloon_interface.adaptors.peripheral_commit();
252 static int vsllink_khz(int khz, int *jtag_speed)
259 static int vsllink_speed_div(int jtag_speed, int *khz)
266 static void vsllink_free_buffer(void)
268 if (tdi_buffer != NULL) {
272 if (tdo_buffer != NULL) {
276 if (tms_buffer != NULL) {
282 static int vsllink_quit(void)
284 versaloon_interface.adaptors.gpio.config(0, GPIO_SRST | GPIO_TRST,
285 0, 0, GPIO_SRST | GPIO_TRST);
286 versaloon_interface.adaptors.gpio.fini(0);
289 versaloon_interface.adaptors.swd.fini(0);
291 versaloon_interface.adaptors.jtag_raw.fini(0);
293 versaloon_interface.adaptors.peripheral_commit();
294 versaloon_interface.fini();
296 vsllink_free_buffer();
297 vsllink_usb_close(vsllink_handle);
299 free(vsllink_handle);
304 static int vsllink_interface_init(void)
306 vsllink_handle = malloc(sizeof(struct vsllink));
307 if (NULL == vsllink_handle) {
308 LOG_ERROR("unable to allocate memory");
312 libusb_init(&vsllink_handle->libusb_ctx);
314 if (ERROR_OK != vsllink_usb_open(vsllink_handle)) {
315 LOG_ERROR("Can't find USB JTAG Interface!" \
316 "Please check connection and permissions.");
317 return ERROR_JTAG_INIT_FAILED;
319 LOG_DEBUG("vsllink found on %04X:%04X",
320 versaloon_interface.usb_setting.vid,
321 versaloon_interface.usb_setting.pid);
322 versaloon_usb_device_handle = vsllink_handle->usb_device_handle;
324 if (ERROR_OK != versaloon_interface.init())
326 if (versaloon_interface.usb_setting.buf_size < 32) {
327 versaloon_interface.fini();
334 static int vsllink_init(void)
336 int retval = vsllink_interface_init();
337 if (ERROR_OK != retval)
340 versaloon_interface.adaptors.gpio.init(0);
341 versaloon_interface.adaptors.gpio.config(0, GPIO_SRST, 0, GPIO_SRST,
343 versaloon_interface.adaptors.delay.delayms(100);
344 versaloon_interface.adaptors.peripheral_commit();
347 versaloon_interface.adaptors.gpio.config(0, GPIO_TRST, 0,
348 GPIO_TRST, GPIO_TRST);
349 versaloon_interface.adaptors.swd.init(0);
350 vsllink_swd_frequency(jtag_get_speed_khz() * 1000);
351 vsllink_swd_switch_seq(JTAG_TO_SWD);
354 /* malloc buffer size for tap */
355 tap_buffer_size = versaloon_interface.usb_setting.buf_size / 2 - 32;
356 vsllink_free_buffer();
357 tdi_buffer = malloc(tap_buffer_size);
358 tdo_buffer = malloc(tap_buffer_size);
359 tms_buffer = malloc(tap_buffer_size);
360 if ((NULL == tdi_buffer) || (NULL == tdo_buffer) || (NULL == tms_buffer)) {
365 versaloon_interface.adaptors.jtag_raw.init(0);
366 versaloon_interface.adaptors.jtag_raw.config(0, jtag_get_speed_khz());
367 versaloon_interface.adaptors.gpio.config(0, GPIO_SRST | GPIO_TRST,
368 GPIO_TRST, GPIO_SRST, GPIO_SRST);
371 if (ERROR_OK != versaloon_interface.adaptors.peripheral_commit())
379 /**************************************************************************
380 * Queue command implementations */
382 static void vsllink_end_state(tap_state_t state)
384 if (tap_is_state_stable(state))
385 tap_set_end_state(state);
387 LOG_ERROR("BUG: %i is not a valid end state", state);
392 /* Goes to the end state. */
393 static void vsllink_state_move(void)
396 uint8_t tms_scan = tap_get_tms_path(tap_get_state(),
397 tap_get_end_state());
398 uint8_t tms_scan_bits = tap_get_tms_path_len(tap_get_state(),
399 tap_get_end_state());
401 for (i = 0; i < tms_scan_bits; i++)
402 vsllink_tap_append_step((tms_scan >> i) & 1, 0);
404 tap_set_state(tap_get_end_state());
407 static void vsllink_path_move(int num_states, tap_state_t *path)
409 for (int i = 0; i < num_states; i++) {
410 if (path[i] == tap_state_transition(tap_get_state(), false))
411 vsllink_tap_append_step(0, 0);
412 else if (path[i] == tap_state_transition(tap_get_state(), true))
413 vsllink_tap_append_step(1, 0);
415 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
416 tap_state_name(tap_get_state()),
417 tap_state_name(path[i]));
421 tap_set_state(path[i]);
424 tap_set_end_state(tap_get_state());
427 static void vsllink_tms(int num_bits, const uint8_t *bits)
429 for (int i = 0; i < num_bits; i++)
430 vsllink_tap_append_step((bits[i / 8] >> (i % 8)) & 1, 0);
433 static void vsllink_stableclocks(int num_cycles, int tms)
435 while (num_cycles > 0) {
436 vsllink_tap_append_step(tms, 0);
441 static void vsllink_runtest(int num_cycles)
443 tap_state_t saved_end_state = tap_get_end_state();
445 if (tap_get_state() != TAP_IDLE) {
446 /* enter IDLE state */
447 vsllink_end_state(TAP_IDLE);
448 vsllink_state_move();
451 vsllink_stableclocks(num_cycles, 0);
455 vsllink_end_state(saved_end_state);
456 if (tap_get_end_state() != tap_get_end_state())
457 vsllink_state_move();
460 static void vsllink_scan(bool ir_scan, enum scan_type type, uint8_t *buffer,
461 int scan_size, struct scan_command *command)
463 tap_state_t saved_end_state;
465 saved_end_state = tap_get_end_state();
467 /* Move to appropriate scan state */
468 vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
470 if (tap_get_state() != tap_get_end_state())
471 vsllink_state_move();
472 vsllink_end_state(saved_end_state);
475 vsllink_tap_append_scan(scan_size, buffer, command);
477 /* Goto Pause and record position to insert tms:0 */
478 vsllink_tap_append_step(0, 0);
479 vsllink_tms_offset = tap_length;
481 tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
483 if (tap_get_state() != tap_get_end_state())
484 vsllink_state_move();
487 static void vsllink_reset(int trst, int srst)
489 LOG_DEBUG("trst: %i, srst: %i", trst, srst);
492 versaloon_interface.adaptors.gpio.config(0, GPIO_SRST, 0, GPIO_SRST, GPIO_SRST);
494 versaloon_interface.adaptors.gpio.config(0, GPIO_SRST, GPIO_SRST, 0, 0);
498 versaloon_interface.adaptors.gpio.out(0, GPIO_TRST, GPIO_TRST);
500 versaloon_interface.adaptors.gpio.out(0, GPIO_TRST, 0);
503 versaloon_interface.adaptors.peripheral_commit();
506 COMMAND_HANDLER(vsllink_handle_usb_vid_command)
509 return ERROR_COMMAND_SYNTAX_ERROR;
511 COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0],
512 versaloon_interface.usb_setting.vid);
516 COMMAND_HANDLER(vsllink_handle_usb_pid_command)
519 return ERROR_COMMAND_SYNTAX_ERROR;
520 COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0],
521 versaloon_interface.usb_setting.pid);
525 COMMAND_HANDLER(vsllink_handle_usb_serial_command)
528 return ERROR_COMMAND_SYNTAX_ERROR;
530 free(versaloon_interface.usb_setting.serialstring);
533 versaloon_interface.usb_setting.serialstring = strdup(CMD_ARGV[0]);
535 versaloon_interface.usb_setting.serialstring = NULL;
540 COMMAND_HANDLER(vsllink_handle_usb_bulkin_command)
543 return ERROR_COMMAND_SYNTAX_ERROR;
545 COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0],
546 versaloon_interface.usb_setting.ep_in);
548 versaloon_interface.usb_setting.ep_in |= 0x80;
553 COMMAND_HANDLER(vsllink_handle_usb_bulkout_command)
556 return ERROR_COMMAND_SYNTAX_ERROR;
558 COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0],
559 versaloon_interface.usb_setting.ep_out);
561 versaloon_interface.usb_setting.ep_out &= ~0x80;
566 COMMAND_HANDLER(vsllink_handle_usb_interface_command)
569 return ERROR_COMMAND_SYNTAX_ERROR;
571 COMMAND_PARSE_NUMBER(u8, CMD_ARGV[0],
572 versaloon_interface.usb_setting.interface);
576 /**************************************************************************
577 * VSLLink tap functions */
579 static void vsllink_tap_init(void)
582 pending_scan_results_length = 0;
583 vsllink_tms_offset = 0;
586 static void vsllink_tap_ensure_pending(int scans)
588 int available_scans =
589 MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
591 if (scans > available_scans)
592 vsllink_tap_execute();
595 static void vsllink_tap_append_step(int tms, int tdi)
597 int index_var = tap_length / 8;
599 int bit_index = tap_length % 8;
600 uint8_t bit = 1 << bit_index;
603 tms_buffer[index_var] |= bit;
605 tms_buffer[index_var] &= ~bit;
608 tdi_buffer[index_var] |= bit;
610 tdi_buffer[index_var] &= ~bit;
614 if (tap_buffer_size * 8 <= tap_length)
615 vsllink_tap_execute();
618 static void vsllink_tap_append_scan(int length, uint8_t *buffer,
619 struct scan_command *command)
621 struct pending_scan_result *pending_scan_result;
622 int len_tmp, len_all, i;
625 while (len_all < length) {
626 vsllink_tap_ensure_pending(1);
627 pending_scan_result =
628 &pending_scan_results_buffer[
629 pending_scan_results_length];
631 if ((length - len_all) > (tap_buffer_size * 8 - tap_length)) {
632 /* Use all memory available
633 vsllink_tap_append_step will commit automatically */
634 len_tmp = tap_buffer_size * 8 - tap_length;
635 pending_scan_result->last = false;
637 len_tmp = length - len_all;
638 pending_scan_result->last = true;
640 pending_scan_result->src_offset = tap_length;
641 pending_scan_result->dest_offset = len_all;
642 pending_scan_result->length = len_tmp;
643 pending_scan_result->command = command;
644 pending_scan_result->buffer = buffer;
645 pending_scan_results_length++;
647 for (i = 0; i < len_tmp; i++) {
648 vsllink_tap_append_step(((len_all + i) < length-1
650 (buffer[(len_all + i)/8]
651 >> ((len_all + i)%8)) & 1);
658 static int vsllink_jtag_execute(void)
666 versaloon_interface.adaptors.jtag_raw.execute(0, tdi_buffer, tms_buffer,
667 tdo_buffer, tap_length);
669 result = versaloon_interface.adaptors.peripheral_commit();
671 if (result == ERROR_OK) {
672 for (i = 0; i < pending_scan_results_length; i++) {
673 struct pending_scan_result *pending_scan_result =
674 &pending_scan_results_buffer[i];
675 uint8_t *buffer = pending_scan_result->buffer;
676 int length = pending_scan_result->length;
677 int src_first = pending_scan_result->src_offset;
678 int dest_first = pending_scan_result->dest_offset;
679 bool last = pending_scan_result->last;
681 struct scan_command *command;
683 command = pending_scan_result->command;
684 buf_set_buf(tdo_buffer, src_first, buffer, dest_first, length);
686 #ifdef _DEBUG_JTAG_IO_
688 "JTAG scan read(%d bits, from src %d bits to dest %d bits):",
689 length, src_first, dest_first);
690 vsllink_debug_buffer(buffer + dest_first / 8,
691 DIV_ROUND_UP(length, 7));
695 if (jtag_read_buffer(buffer, command)
698 return ERROR_JTAG_QUEUE_FAILED;
701 if (pending_scan_result->buffer != NULL)
702 free(pending_scan_result->buffer);
706 LOG_ERROR("vsllink_jtag_execute failure");
707 return ERROR_JTAG_QUEUE_FAILED;
715 static int vsllink_tap_execute(void)
720 return vsllink_jtag_execute();
723 static int vsllink_swd_init(void)
725 LOG_INFO("VSLLink SWD mode enabled");
731 static int_least32_t vsllink_swd_frequency(int_least32_t hz)
733 const int_least32_t delay2hz[] = {
734 1850000, 235000, 130000, 102000, 85000, 72000
738 uint16_t delay = UINT16_MAX;
740 for (uint16_t i = 0; i < ARRAY_SIZE(delay2hz); i++) {
741 if (hz >= delay2hz[i]) {
748 if (delay == UINT16_MAX)
749 delay = (500000 / hz) - 1;
751 /* Calculate retry count after a WAIT response. This will give
752 * a retry timeout at about ~250 ms. 54 is the number of bits
753 * found in a transaction. */
754 uint16_t retry_count = 250 * hz / 1000 / 54;
756 LOG_DEBUG("SWD delay: %d, retry count: %d", delay, retry_count);
758 versaloon_interface.adaptors.swd.config(0, 2, retry_count, delay);
764 static int vsllink_swd_switch_seq(enum swd_special_seq seq)
768 LOG_DEBUG("SWD line reset");
769 versaloon_interface.adaptors.swd.seqout(0, swd_seq_line_reset,
770 swd_seq_line_reset_len);
773 LOG_DEBUG("JTAG-to-SWD");
774 versaloon_interface.adaptors.swd.seqout(0, swd_seq_jtag_to_swd,
775 swd_seq_jtag_to_swd_len);
778 LOG_DEBUG("SWD-to-JTAG");
779 versaloon_interface.adaptors.swd.seqout(0, swd_seq_swd_to_jtag,
780 swd_seq_swd_to_jtag_len);
783 LOG_ERROR("Sequence %d not supported", seq);
790 static void vsllink_swd_read_reg(uint8_t cmd, uint32_t *value, uint32_t ap_delay_clk)
792 versaloon_interface.adaptors.swd.transact(0, cmd, value, NULL);
795 static void vsllink_swd_write_reg(uint8_t cmd, uint32_t value, uint32_t ap_delay_clk)
797 versaloon_interface.adaptors.swd.transact(0, cmd, &value, NULL);
800 static int vsllink_swd_run_queue(void)
802 return versaloon_interface.adaptors.peripheral_commit();
805 /****************************************************************************
806 * VSLLink USB low-level functions */
808 static int vsllink_check_usb_strings(
809 struct libusb_device_handle *usb_device_handle,
810 struct libusb_device_descriptor *usb_desc)
812 char desc_string[256];
815 if (NULL != versaloon_interface.usb_setting.serialstring) {
816 retval = libusb_get_string_descriptor_ascii(usb_device_handle,
817 usb_desc->iSerialNumber, (unsigned char *)desc_string,
818 sizeof(desc_string));
822 if (strncmp(desc_string, versaloon_interface.usb_setting.serialstring,
823 sizeof(desc_string)))
827 retval = libusb_get_string_descriptor_ascii(usb_device_handle,
828 usb_desc->iProduct, (unsigned char *)desc_string,
829 sizeof(desc_string));
833 if (strstr(desc_string, "Versaloon") == NULL)
839 static int vsllink_usb_open(struct vsllink *vsllink)
841 ssize_t num_devices, i;
842 libusb_device **usb_devices;
843 struct libusb_device_descriptor usb_desc;
844 struct libusb_device_handle *usb_device_handle;
847 num_devices = libusb_get_device_list(vsllink->libusb_ctx, &usb_devices);
849 if (num_devices <= 0)
852 for (i = 0; i < num_devices; i++) {
853 libusb_device *device = usb_devices[i];
855 retval = libusb_get_device_descriptor(device, &usb_desc);
859 if (usb_desc.idVendor != versaloon_interface.usb_setting.vid ||
860 usb_desc.idProduct != versaloon_interface.usb_setting.pid)
863 retval = libusb_open(device, &usb_device_handle);
867 retval = vsllink_check_usb_strings(usb_device_handle, &usb_desc);
868 if (ERROR_OK == retval)
871 libusb_close(usb_device_handle);
874 libusb_free_device_list(usb_devices, 1);
876 if (i == num_devices)
879 retval = libusb_claim_interface(usb_device_handle,
880 versaloon_interface.usb_setting.interface);
882 LOG_ERROR("unable to claim interface");
883 libusb_close(usb_device_handle);
887 vsllink->usb_device_handle = usb_device_handle;
891 static void vsllink_usb_close(struct vsllink *vsllink)
893 libusb_release_interface(vsllink->usb_device_handle,
894 versaloon_interface.usb_setting.interface);
895 libusb_close(vsllink->usb_device_handle);
898 #define BYTES_PER_LINE 16
900 #if defined _DEBUG_JTAG_IO_
901 static void vsllink_debug_buffer(uint8_t *buffer, int length)
908 for (i = 0; i < length; i += BYTES_PER_LINE) {
909 snprintf(line, 5, "%04x", i);
910 for (j = i; j < i + BYTES_PER_LINE && j < length; j++) {
911 snprintf(s, 4, " %02x", buffer[j]);
914 LOG_DEBUG("%s", line);
917 #endif /* _DEBUG_JTAG_IO_ */
919 static const struct command_registration vsllink_command_handlers[] = {
921 .name = "vsllink_usb_vid",
922 .handler = &vsllink_handle_usb_vid_command,
923 .mode = COMMAND_CONFIG,
926 .name = "vsllink_usb_pid",
927 .handler = &vsllink_handle_usb_pid_command,
928 .mode = COMMAND_CONFIG,
931 .name = "vsllink_usb_serial",
932 .handler = &vsllink_handle_usb_serial_command,
933 .mode = COMMAND_CONFIG,
936 .name = "vsllink_usb_bulkin",
937 .handler = &vsllink_handle_usb_bulkin_command,
938 .mode = COMMAND_CONFIG,
941 .name = "vsllink_usb_bulkout",
942 .handler = &vsllink_handle_usb_bulkout_command,
943 .mode = COMMAND_CONFIG,
946 .name = "vsllink_usb_interface",
947 .handler = &vsllink_handle_usb_interface_command,
948 .mode = COMMAND_CONFIG,
950 COMMAND_REGISTRATION_DONE
953 static const char * const vsllink_transports[] = {"jtag", "swd", NULL};
955 static const struct swd_driver vsllink_swd_driver = {
956 .init = vsllink_swd_init,
957 .frequency = vsllink_swd_frequency,
958 .switch_seq = vsllink_swd_switch_seq,
959 .read_reg = vsllink_swd_read_reg,
960 .write_reg = vsllink_swd_write_reg,
961 .run = vsllink_swd_run_queue,
964 struct jtag_interface vsllink_interface = {
966 .supported = DEBUG_CAP_TMS_SEQ,
967 .commands = vsllink_command_handlers,
968 .transports = vsllink_transports,
969 .swd = &vsllink_swd_driver,
971 .init = vsllink_init,
972 .quit = vsllink_quit,
974 .speed = vsllink_speed,
975 .speed_div = vsllink_speed_div,
976 .execute_queue = vsllink_execute_queue,