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cortex_m: Fix possible endianness problem in emulated DCC channel
[openocd.git] / src / jtag / tcl.c
blobceea19303c53e8debad0d8eee4473efbb9a24d31
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007-2010 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2009 SoftPLC Corporation *
9 * http://softplc.com *
10 * dick@softplc.com *
11 * *
12 * Copyright (C) 2009 Zachary T Welch *
13 * zw@superlucidity.net *
14 * *
15 * This program is free software; you can redistribute it and/or modify *
16 * it under the terms of the GNU General Public License as published by *
17 * the Free Software Foundation; either version 2 of the License, or *
18 * (at your option) any later version. *
19 * *
20 * This program is distributed in the hope that it will be useful, *
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
23 * GNU General Public License for more details. *
24 * *
25 * You should have received a copy of the GNU General Public License *
26 * along with this program; if not, write to the *
27 * Free Software Foundation, Inc., *
28 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
29 ***************************************************************************/
30
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34
35 #include "jtag.h"
36 #include "swd.h"
37 #include "minidriver.h"
38 #include "interface.h"
39 #include "interfaces.h"
40 #include "tcl.h"
41
42 #ifdef HAVE_STRINGS_H
43 #include <strings.h>
44 #endif
45
46 #include <helper/time_support.h>
47
48 /**
49 * @file
50 * Holds support for accessing JTAG-specific mechanisms from TCl scripts.
51 */
52
53 static const Jim_Nvp nvp_jtag_tap_event[] = {
54 { .value = JTAG_TRST_ASSERTED, .name = "post-reset" },
55 { .value = JTAG_TAP_EVENT_SETUP, .name = "setup" },
56 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
57 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
58
59 { .name = NULL, .value = -1 }
60 };
61
62 struct jtag_tap *jtag_tap_by_jim_obj(Jim_Interp *interp, Jim_Obj *o)
63 {
64 const char *cp = Jim_GetString(o, NULL);
65 struct jtag_tap *t = cp ? jtag_tap_by_string(cp) : NULL;
66 if (NULL == cp)
67 cp = "(unknown)";
68 if (NULL == t)
69 Jim_SetResultFormatted(interp, "Tap '%s' could not be found", cp);
70 return t;
71 }
72
73 static bool scan_is_safe(tap_state_t state)
74 {
75 switch (state) {
76 case TAP_RESET:
77 case TAP_IDLE:
78 case TAP_DRPAUSE:
79 case TAP_IRPAUSE:
80 return true;
81 default:
82 return false;
83 }
84 }
85
86 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
87 {
88 int retval;
89 struct scan_field *fields;
90 int num_fields;
91 int field_count = 0;
92 int i, e;
93 struct jtag_tap *tap;
94 tap_state_t endstate;
95
96 /* args[1] = device
97 * args[2] = num_bits
98 * args[3] = hex string
99 * ... repeat num bits and hex string ...
100 *
101 * .. optionally:
102 * args[N-2] = "-endstate"
103 * args[N-1] = statename
104 */
105 if ((argc < 4) || ((argc % 2) != 0)) {
106 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
107 return JIM_ERR;
108 }
109
110 endstate = TAP_IDLE;
111
112 script_debug(interp, "drscan", argc, args);
113
114 /* validate arguments as numbers */
115 e = JIM_OK;
116 for (i = 2; i < argc; i += 2) {
117 long bits;
118 const char *cp;
119
120 e = Jim_GetLong(interp, args[i], &bits);
121 /* If valid - try next arg */
122 if (e == JIM_OK)
123 continue;
124
125 /* Not valid.. are we at the end? */
126 if (((i + 2) != argc)) {
127 /* nope, then error */
128 return e;
129 }
130
131 /* it could be: "-endstate FOO"
132 * e.g. DRPAUSE so we can issue more instructions
133 * before entering RUN/IDLE and executing them.
134 */
135
136 /* get arg as a string. */
137 cp = Jim_GetString(args[i], NULL);
138 /* is it the magic? */
139 if (0 == strcmp("-endstate", cp)) {
140 /* is the statename valid? */
141 cp = Jim_GetString(args[i + 1], NULL);
142
143 /* see if it is a valid state name */
144 endstate = tap_state_by_name(cp);
145 if (endstate < 0) {
146 /* update the error message */
147 Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
148 } else {
149 if (!scan_is_safe(endstate))
150 LOG_WARNING("drscan with unsafe "
151 "endstate \"%s\"", cp);
152
153 /* valid - so clear the error */
154 e = JIM_OK;
155 /* and remove the last 2 args */
156 argc -= 2;
157 }
158 }
159
160 /* Still an error? */
161 if (e != JIM_OK)
162 return e; /* too bad */
163 } /* validate args */
164
165 assert(e == JIM_OK);
166
167 tap = jtag_tap_by_jim_obj(interp, args[1]);
168 if (tap == NULL)
169 return JIM_ERR;
170
171 num_fields = (argc-2)/2;
172 assert(num_fields > 0);
173 fields = malloc(sizeof(struct scan_field) * num_fields);
174 for (i = 2; i < argc; i += 2) {
175 long bits;
176 int len;
177 const char *str;
178
179 Jim_GetLong(interp, args[i], &bits);
180 str = Jim_GetString(args[i + 1], &len);
181
182 fields[field_count].num_bits = bits;
183 void *t = malloc(DIV_ROUND_UP(bits, 8));
184 fields[field_count].out_value = t;
185 str_to_buf(str, len, t, bits, 0);
186 fields[field_count].in_value = t;
187 field_count++;
188 }
189
190 jtag_add_dr_scan(tap, num_fields, fields, endstate);
191
192 retval = jtag_execute_queue();
193 if (retval != ERROR_OK) {
194 Jim_SetResultString(interp, "drscan: jtag execute failed", -1);
195 return JIM_ERR;
196 }
197
198 field_count = 0;
199 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
200 for (i = 2; i < argc; i += 2) {
201 long bits;
202 char *str;
203
204 Jim_GetLong(interp, args[i], &bits);
205 str = buf_to_str(fields[field_count].in_value, bits, 16);
206 free(fields[field_count].in_value);
207
208 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
209 free(str);
210 field_count++;
211 }
212
213 Jim_SetResult(interp, list);
214
215 free(fields);
216
217 return JIM_OK;
218 }
219
220
221 static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
222 {
223 tap_state_t states[8];
224
225 if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(states) + 1))) {
226 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
227 return JIM_ERR;
228 }
229
230 script_debug(interp, "pathmove", argc, args);
231
232 int i;
233 for (i = 0; i < argc-1; i++) {
234 const char *cp;
235 cp = Jim_GetString(args[i + 1], NULL);
236 states[i] = tap_state_by_name(cp);
237 if (states[i] < 0) {
238 /* update the error message */
239 Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
240 return JIM_ERR;
241 }
242 }
243
244 if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue() != ERROR_OK)) {
245 Jim_SetResultString(interp, "pathmove: jtag execute failed", -1);
246 return JIM_ERR;
247 }
248
249 jtag_add_pathmove(argc - 2, states + 1);
250
251 if (jtag_execute_queue() != ERROR_OK) {
252 Jim_SetResultString(interp, "pathmove: failed", -1);
253 return JIM_ERR;
254 }
255
256 return JIM_OK;
257 }
258
259
260 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
261 {
262 script_debug(interp, "flush_count", argc, args);
263
264 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
265
266 return JIM_OK;
267 }
268
269 /* REVISIT Just what about these should "move" ... ?
270 * These registrations, into the main JTAG table?
271 *
272 * There's a minor compatibility issue, these all show up twice;
273 * that's not desirable:
274 * - jtag drscan ... NOT DOCUMENTED!
275 * - drscan ...
276 *
277 * The "irscan" command (for example) doesn't show twice.
278 */
279 static const struct command_registration jtag_command_handlers_to_move[] = {
280 {
281 .name = "drscan",
282 .mode = COMMAND_EXEC,
283 .jim_handler = Jim_Command_drscan,
284 .help = "Execute Data Register (DR) scan for one TAP. "
285 "Other TAPs must be in BYPASS mode.",
286 .usage = "tap_name [num_bits value]* ['-endstate' state_name]",
287 },
288 {
289 .name = "flush_count",
290 .mode = COMMAND_EXEC,
291 .jim_handler = Jim_Command_flush_count,
292 .help = "Returns the number of times the JTAG queue "
293 "has been flushed.",
294 },
295 {
296 .name = "pathmove",
297 .mode = COMMAND_EXEC,
298 .jim_handler = Jim_Command_pathmove,
299 .usage = "start_state state1 [state2 [state3 ...]]",
300 .help = "Move JTAG state machine from current state "
301 "(start_state) to state1, then state2, state3, etc.",
302 },
303 COMMAND_REGISTRATION_DONE
304 };
305
306
307 enum jtag_tap_cfg_param {
308 JCFG_EVENT
309 };
310
311 static Jim_Nvp nvp_config_opts[] = {
312 { .name = "-event", .value = JCFG_EVENT },
313
314 { .name = NULL, .value = -1 }
315 };
316
317 static int jtag_tap_configure_event(Jim_GetOptInfo *goi, struct jtag_tap *tap)
318 {
319 if (goi->argc == 0) {
320 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name> ...");
321 return JIM_ERR;
322 }
323
324 Jim_Nvp *n;
325 int e = Jim_GetOpt_Nvp(goi, nvp_jtag_tap_event, &n);
326 if (e != JIM_OK) {
327 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
328 return e;
329 }
330
331 if (goi->isconfigure) {
332 if (goi->argc != 1) {
333 Jim_WrongNumArgs(goi->interp,
334 goi->argc,
335 goi->argv,
336 "-event <event-name> <event-body>");
337 return JIM_ERR;
338 }
339 } else {
340 if (goi->argc != 0) {
341 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name>");
342 return JIM_ERR;
343 }
344 }
345
346 struct jtag_tap_event_action *jteap = tap->event_action;
347 /* replace existing event body */
348 bool found = false;
349 while (jteap) {
350 if (jteap->event == (enum jtag_event)n->value) {
351 found = true;
352 break;
353 }
354 jteap = jteap->next;
355 }
356
357 Jim_SetEmptyResult(goi->interp);
358
359 if (goi->isconfigure) {
360 if (!found)
361 jteap = calloc(1, sizeof(*jteap));
362 else if (NULL != jteap->body)
363 Jim_DecrRefCount(goi->interp, jteap->body);
364
365 jteap->interp = goi->interp;
366 jteap->event = n->value;
367
368 Jim_Obj *o;
369 Jim_GetOpt_Obj(goi, &o);
370 jteap->body = Jim_DuplicateObj(goi->interp, o);
371 Jim_IncrRefCount(jteap->body);
372
373 if (!found) {
374 /* add to head of event list */
375 jteap->next = tap->event_action;
376 tap->event_action = jteap;
377 }
378 } else if (found) {
379 jteap->interp = goi->interp;
380 Jim_SetResult(goi->interp,
381 Jim_DuplicateObj(goi->interp, jteap->body));
382 }
383 return JIM_OK;
384 }
385
386 static int jtag_tap_configure_cmd(Jim_GetOptInfo *goi, struct jtag_tap *tap)
387 {
388 /* parse config or cget options */
389 while (goi->argc > 0) {
390 Jim_SetEmptyResult(goi->interp);
391
392 Jim_Nvp *n;
393 int e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
394 if (e != JIM_OK) {
395 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
396 return e;
397 }
398
399 switch (n->value) {
400 case JCFG_EVENT:
401 e = jtag_tap_configure_event(goi, tap);
402 if (e != JIM_OK)
403 return e;
404 break;
405 default:
406 Jim_SetResultFormatted(goi->interp, "unknown event: %s", n->name);
407 return JIM_ERR;
408 }
409 }
410
411 return JIM_OK;
412 }
413
414 static int is_bad_irval(int ir_length, jim_wide w)
415 {
416 jim_wide v = 1;
417
418 v <<= ir_length;
419 v -= 1;
420 v = ~v;
421 return (w & v) != 0;
422 }
423
424 static int jim_newtap_expected_id(Jim_Nvp *n, Jim_GetOptInfo *goi,
425 struct jtag_tap *pTap)
426 {
427 jim_wide w;
428 int e = Jim_GetOpt_Wide(goi, &w);
429 if (e != JIM_OK) {
430 Jim_SetResultFormatted(goi->interp, "option: %s bad parameter", n->name);
431 return e;
432 }
433
434 unsigned expected_len = sizeof(uint32_t) * pTap->expected_ids_cnt;
435 uint32_t *new_expected_ids = malloc(expected_len + sizeof(uint32_t));
436 if (new_expected_ids == NULL) {
437 Jim_SetResultFormatted(goi->interp, "no memory");
438 return JIM_ERR;
439 }
440
441 memcpy(new_expected_ids, pTap->expected_ids, expected_len);
442
443 new_expected_ids[pTap->expected_ids_cnt] = w;
444
445 free(pTap->expected_ids);
446 pTap->expected_ids = new_expected_ids;
447 pTap->expected_ids_cnt++;
448
449 return JIM_OK;
450 }
451
452 #define NTAP_OPT_IRLEN 0
453 #define NTAP_OPT_IRMASK 1
454 #define NTAP_OPT_IRCAPTURE 2
455 #define NTAP_OPT_ENABLED 3
456 #define NTAP_OPT_DISABLED 4
457 #define NTAP_OPT_EXPECTED_ID 5
458 #define NTAP_OPT_VERSION 6
459
460 static int jim_newtap_ir_param(Jim_Nvp *n, Jim_GetOptInfo *goi,
461 struct jtag_tap *pTap)
462 {
463 jim_wide w;
464 int e = Jim_GetOpt_Wide(goi, &w);
465 if (e != JIM_OK) {
466 Jim_SetResultFormatted(goi->interp,
467 "option: %s bad parameter", n->name);
468 return e;
469 }
470 switch (n->value) {
471 case NTAP_OPT_IRLEN:
472 if (w > (jim_wide) (8 * sizeof(pTap->ir_capture_value))) {
473 LOG_WARNING("%s: huge IR length %d",
474 pTap->dotted_name, (int) w);
475 }
476 pTap->ir_length = w;
477 break;
478 case NTAP_OPT_IRMASK:
479 if (is_bad_irval(pTap->ir_length, w)) {
480 LOG_ERROR("%s: IR mask %x too big",
481 pTap->dotted_name,
482 (int) w);
483 return JIM_ERR;
484 }
485 if ((w & 3) != 3)
486 LOG_WARNING("%s: nonstandard IR mask", pTap->dotted_name);
487 pTap->ir_capture_mask = w;
488 break;
489 case NTAP_OPT_IRCAPTURE:
490 if (is_bad_irval(pTap->ir_length, w)) {
491 LOG_ERROR("%s: IR capture %x too big",
492 pTap->dotted_name, (int) w);
493 return JIM_ERR;
494 }
495 if ((w & 3) != 1)
496 LOG_WARNING("%s: nonstandard IR value",
497 pTap->dotted_name);
498 pTap->ir_capture_value = w;
499 break;
500 default:
501 return JIM_ERR;
502 }
503 return JIM_OK;
504 }
505
506 static int jim_newtap_cmd(Jim_GetOptInfo *goi)
507 {
508 struct jtag_tap *pTap;
509 int x;
510 int e;
511 Jim_Nvp *n;
512 char *cp;
513 const Jim_Nvp opts[] = {
514 { .name = "-irlen", .value = NTAP_OPT_IRLEN },
515 { .name = "-irmask", .value = NTAP_OPT_IRMASK },
516 { .name = "-ircapture", .value = NTAP_OPT_IRCAPTURE },
517 { .name = "-enable", .value = NTAP_OPT_ENABLED },
518 { .name = "-disable", .value = NTAP_OPT_DISABLED },
519 { .name = "-expected-id", .value = NTAP_OPT_EXPECTED_ID },
520 { .name = "-ignore-version", .value = NTAP_OPT_VERSION },
521 { .name = NULL, .value = -1 },
522 };
523
524 pTap = calloc(1, sizeof(struct jtag_tap));
525 if (!pTap) {
526 Jim_SetResultFormatted(goi->interp, "no memory");
527 return JIM_ERR;
528 }
529
530 /*
531 * we expect CHIP + TAP + OPTIONS
532 * */
533 if (goi->argc < 3) {
534 Jim_SetResultFormatted(goi->interp, "Missing CHIP TAP OPTIONS ....");
535 free(pTap);
536 return JIM_ERR;
537 }
538 Jim_GetOpt_String(goi, &cp, NULL);
539 pTap->chip = strdup(cp);
540
541 Jim_GetOpt_String(goi, &cp, NULL);
542 pTap->tapname = strdup(cp);
543
544 /* name + dot + name + null */
545 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
546 cp = malloc(x);
547 sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
548 pTap->dotted_name = cp;
549
550 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
551 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
552
553 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
554 * that the default. The "-irlen" and "-irmask" options are only
555 * needed to cope with nonstandard TAPs, or to specify more bits.
556 */
557 pTap->ir_capture_mask = 0x03;
558 pTap->ir_capture_value = 0x01;
559
560 while (goi->argc) {
561 e = Jim_GetOpt_Nvp(goi, opts, &n);
562 if (e != JIM_OK) {
563 Jim_GetOpt_NvpUnknown(goi, opts, 0);
564 free(cp);
565 free(pTap);
566 return e;
567 }
568 LOG_DEBUG("Processing option: %s", n->name);
569 switch (n->value) {
570 case NTAP_OPT_ENABLED:
571 pTap->disabled_after_reset = false;
572 break;
573 case NTAP_OPT_DISABLED:
574 pTap->disabled_after_reset = true;
575 break;
576 case NTAP_OPT_EXPECTED_ID:
577 e = jim_newtap_expected_id(n, goi, pTap);
578 if (JIM_OK != e) {
579 free(cp);
580 free(pTap);
581 return e;
582 }
583 break;
584 case NTAP_OPT_IRLEN:
585 case NTAP_OPT_IRMASK:
586 case NTAP_OPT_IRCAPTURE:
587 e = jim_newtap_ir_param(n, goi, pTap);
588 if (JIM_OK != e) {
589 free(cp);
590 free(pTap);
591 return e;
592 }
593 break;
594 case NTAP_OPT_VERSION:
595 pTap->ignore_version = true;
596 break;
597 } /* switch (n->value) */
598 } /* while (goi->argc) */
599
600 /* default is enabled-after-reset */
601 pTap->enabled = !pTap->disabled_after_reset;
602
603 /* Did all the required option bits get cleared? */
604 if (pTap->ir_length != 0) {
605 jtag_tap_init(pTap);
606 return JIM_OK;
607 }
608
609 Jim_SetResultFormatted(goi->interp,
610 "newtap: %s missing IR length",
611 pTap->dotted_name);
612 jtag_tap_free(pTap);
613 return JIM_ERR;
614 }
615
616 static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
617 {
618 struct jtag_tap_event_action *jteap;
619
620 for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next) {
621 if (jteap->event != e)
622 continue;
623
624 Jim_Nvp *nvp = Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e);
625 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
626 tap->dotted_name, e, nvp->name,
627 Jim_GetString(jteap->body, NULL));
628
629 if (Jim_EvalObj(jteap->interp, jteap->body) != JIM_OK) {
630 Jim_MakeErrorMessage(jteap->interp);
631 LOG_USER("%s", Jim_GetString(Jim_GetResult(jteap->interp), NULL));
632 continue;
633 }
634
635 switch (e) {
636 case JTAG_TAP_EVENT_ENABLE:
637 case JTAG_TAP_EVENT_DISABLE:
638 /* NOTE: we currently assume the handlers
639 * can't fail. Right here is where we should
640 * really be verifying the scan chains ...
641 */
642 tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
643 LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
644 tap->enabled ? "enabled" : "disabled");
645 break;
646 default:
647 break;
648 }
649 }
650 }
651
652 static int jim_jtag_arp_init(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
653 {
654 Jim_GetOptInfo goi;
655 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
656 if (goi.argc != 0) {
657 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
658 return JIM_ERR;
659 }
660 struct command_context *context = current_command_context(interp);
661 int e = jtag_init_inner(context);
662 if (e != ERROR_OK) {
663 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
664 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
665 Jim_FreeNewObj(goi.interp, eObj);
666 return JIM_ERR;
667 }
668 return JIM_OK;
669 }
670
671 static int jim_jtag_arp_init_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
672 {
673 int e = ERROR_OK;
674 Jim_GetOptInfo goi;
675 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
676 if (goi.argc != 0) {
677 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
678 return JIM_ERR;
679 }
680 struct command_context *context = current_command_context(interp);
681 if (transport_is_jtag())
682 e = jtag_init_reset(context);
683 else if (transport_is_swd())
684 e = swd_init_reset(context);
685
686 if (e != ERROR_OK) {
687 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
688 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
689 Jim_FreeNewObj(goi.interp, eObj);
690 return JIM_ERR;
691 }
692 return JIM_OK;
693 }
694
695 int jim_jtag_newtap(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
696 {
697 Jim_GetOptInfo goi;
698 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
699 return jim_newtap_cmd(&goi);
700 }
701
702 static bool jtag_tap_enable(struct jtag_tap *t)
703 {
704 if (t->enabled)
705 return false;
706 jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
707 if (!t->enabled)
708 return false;
709
710 /* FIXME add JTAG sanity checks, w/o TLR
711 * - scan chain length grew by one (this)
712 * - IDs and IR lengths are as expected
713 */
714 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
715 return true;
716 }
717 static bool jtag_tap_disable(struct jtag_tap *t)
718 {
719 if (!t->enabled)
720 return false;
721 jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
722 if (t->enabled)
723 return false;
724
725 /* FIXME add JTAG sanity checks, w/o TLR
726 * - scan chain length shrank by one (this)
727 * - IDs and IR lengths are as expected
728 */
729 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
730 return true;
731 }
732
733 int jim_jtag_tap_enabler(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
734 {
735 const char *cmd_name = Jim_GetString(argv[0], NULL);
736 Jim_GetOptInfo goi;
737 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
738 if (goi.argc != 1) {
739 Jim_SetResultFormatted(goi.interp, "usage: %s <name>", cmd_name);
740 return JIM_ERR;
741 }
742
743 struct jtag_tap *t;
744
745 t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
746 if (t == NULL)
747 return JIM_ERR;
748
749 if (strcasecmp(cmd_name, "tapisenabled") == 0) {
750 /* do nothing, just return the value */
751 } else if (strcasecmp(cmd_name, "tapenable") == 0) {
752 if (!jtag_tap_enable(t)) {
753 LOG_WARNING("failed to enable tap %s", t->dotted_name);
754 return JIM_ERR;
755 }
756 } else if (strcasecmp(cmd_name, "tapdisable") == 0) {
757 if (!jtag_tap_disable(t)) {
758 LOG_WARNING("failed to disable tap %s", t->dotted_name);
759 return JIM_ERR;
760 }
761 } else {
762 LOG_ERROR("command '%s' unknown", cmd_name);
763 return JIM_ERR;
764 }
765 bool e = t->enabled;
766 Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
767 return JIM_OK;
768 }
769
770 int jim_jtag_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
771 {
772 const char *cmd_name = Jim_GetString(argv[0], NULL);
773 Jim_GetOptInfo goi;
774 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
775 goi.isconfigure = !strcmp(cmd_name, "configure");
776 if (goi.argc < 2 + goi.isconfigure) {
777 Jim_WrongNumArgs(goi.interp, 0, NULL,
778 "<tap_name> <attribute> ...");
779 return JIM_ERR;
780 }
781
782 struct jtag_tap *t;
783
784 Jim_Obj *o;
785 Jim_GetOpt_Obj(&goi, &o);
786 t = jtag_tap_by_jim_obj(goi.interp, o);
787 if (t == NULL)
788 return JIM_ERR;
789
790 return jtag_tap_configure_cmd(&goi, t);
791 }
792
793 static int jim_jtag_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
794 {
795 Jim_GetOptInfo goi;
796 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
797 if (goi.argc != 0) {
798 Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
799 return JIM_ERR;
800 }
801 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
802 struct jtag_tap *tap;
803
804 for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
805 Jim_ListAppendElement(goi.interp,
806 Jim_GetResult(goi.interp),
807 Jim_NewStringObj(goi.interp,
808 tap->dotted_name, -1));
809 }
810 return JIM_OK;
811 }
812
813 COMMAND_HANDLER(handle_jtag_init_command)
814 {
815 if (CMD_ARGC != 0)
816 return ERROR_COMMAND_SYNTAX_ERROR;
817
818 static bool jtag_initialized;
819 if (jtag_initialized) {
820 LOG_INFO("'jtag init' has already been called");
821 return ERROR_OK;
822 }
823 jtag_initialized = true;
824
825 LOG_DEBUG("Initializing jtag devices...");
826 return jtag_init(CMD_CTX);
827 }
828
829 static const struct command_registration jtag_subcommand_handlers[] = {
830 {
831 .name = "init",
832 .mode = COMMAND_ANY,
833 .handler = handle_jtag_init_command,
834 .help = "initialize jtag scan chain",
835 .usage = ""
836 },
837 {
838 .name = "arp_init",
839 .mode = COMMAND_ANY,
840 .jim_handler = jim_jtag_arp_init,
841 .help = "Validates JTAG scan chain against the list of "
842 "declared TAPs using just the four standard JTAG "
843 "signals.",
844 },
845 {
846 .name = "arp_init-reset",
847 .mode = COMMAND_ANY,
848 .jim_handler = jim_jtag_arp_init_reset,
849 .help = "Uses TRST and SRST to try resetting everything on "
850 "the JTAG scan chain, then performs 'jtag arp_init'."
851 },
852 {
853 .name = "newtap",
854 .mode = COMMAND_CONFIG,
855 .jim_handler = jim_jtag_newtap,
856 .help = "Create a new TAP instance named basename.tap_type, "
857 "and appends it to the scan chain.",
858 .usage = "basename tap_type '-irlen' count "
859 "['-enable'|'-disable'] "
860 "['-expected_id' number] "
861 "['-ignore-version'] "
862 "['-ircapture' number] "
863 "['-mask' number] ",
864 },
865 {
866 .name = "tapisenabled",
867 .mode = COMMAND_EXEC,
868 .jim_handler = jim_jtag_tap_enabler,
869 .help = "Returns a Tcl boolean (0/1) indicating whether "
870 "the TAP is enabled (1) or not (0).",
871 .usage = "tap_name",
872 },
873 {
874 .name = "tapenable",
875 .mode = COMMAND_EXEC,
876 .jim_handler = jim_jtag_tap_enabler,
877 .help = "Try to enable the specified TAP using the "
878 "'tap-enable' TAP event.",
879 .usage = "tap_name",
880 },
881 {
882 .name = "tapdisable",
883 .mode = COMMAND_EXEC,
884 .jim_handler = jim_jtag_tap_enabler,
885 .help = "Try to disable the specified TAP using the "
886 "'tap-disable' TAP event.",
887 .usage = "tap_name",
888 },
889 {
890 .name = "configure",
891 .mode = COMMAND_EXEC,
892 .jim_handler = jim_jtag_configure,
893 .help = "Provide a Tcl handler for the specified "
894 "TAP event.",
895 .usage = "tap_name '-event' event_name handler",
896 },
897 {
898 .name = "cget",
899 .mode = COMMAND_EXEC,
900 .jim_handler = jim_jtag_configure,
901 .help = "Return any Tcl handler for the specified "
902 "TAP event.",
903 .usage = "tap_name '-event' event_name",
904 },
905 {
906 .name = "names",
907 .mode = COMMAND_ANY,
908 .jim_handler = jim_jtag_names,
909 .help = "Returns list of all JTAG tap names.",
910 },
911 {
912 .chain = jtag_command_handlers_to_move,
913 },
914 COMMAND_REGISTRATION_DONE
915 };
916
917 void jtag_notify_event(enum jtag_event event)
918 {
919 struct jtag_tap *tap;
920
921 for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
922 jtag_tap_handle_event(tap, event);
923 }
924
925
926 COMMAND_HANDLER(handle_scan_chain_command)
927 {
928 struct jtag_tap *tap;
929 char expected_id[12];
930
931 tap = jtag_all_taps();
932 command_print(CMD_CTX,
933 " TapName Enabled IdCode Expected IrLen IrCap IrMask");
934 command_print(CMD_CTX,
935 "-- ------------------- -------- ---------- ---------- ----- ----- ------");
936
937 while (tap) {
938 uint32_t expected, expected_mask, ii;
939
940 snprintf(expected_id, sizeof expected_id, "0x%08x",
941 (unsigned)((tap->expected_ids_cnt > 0)
942 ? tap->expected_ids[0]
943 : 0));
944 if (tap->ignore_version)
945 expected_id[2] = '*';
946
947 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
948 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
949
950 command_print(CMD_CTX,
951 "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
952 tap->abs_chain_position,
953 tap->dotted_name,
954 tap->enabled ? 'Y' : 'n',
955 (unsigned int)(tap->idcode),
956 expected_id,
957 (unsigned int)(tap->ir_length),
958 (unsigned int)(expected),
959 (unsigned int)(expected_mask));
960
961 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
962 snprintf(expected_id, sizeof expected_id, "0x%08x",
963 (unsigned) tap->expected_ids[ii]);
964 if (tap->ignore_version)
965 expected_id[2] = '*';
966
967 command_print(CMD_CTX,
968 " %s",
969 expected_id);
970 }
971
972 tap = tap->next_tap;
973 }
974
975 return ERROR_OK;
976 }
977
978 COMMAND_HANDLER(handle_jtag_ntrst_delay_command)
979 {
980 if (CMD_ARGC > 1)
981 return ERROR_COMMAND_SYNTAX_ERROR;
982 if (CMD_ARGC == 1) {
983 unsigned delay;
984 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
985
986 jtag_set_ntrst_delay(delay);
987 }
988 command_print(CMD_CTX, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
989 return ERROR_OK;
990 }
991
992 COMMAND_HANDLER(handle_jtag_ntrst_assert_width_command)
993 {
994 if (CMD_ARGC > 1)
995 return ERROR_COMMAND_SYNTAX_ERROR;
996 if (CMD_ARGC == 1) {
997 unsigned delay;
998 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
999
1000 jtag_set_ntrst_assert_width(delay);
1001 }
1002 command_print(CMD_CTX, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1003 return ERROR_OK;
1004 }
1005
1006 COMMAND_HANDLER(handle_jtag_rclk_command)
1007 {
1008 if (CMD_ARGC > 1)
1009 return ERROR_COMMAND_SYNTAX_ERROR;
1010
1011 int retval = ERROR_OK;
1012 if (CMD_ARGC == 1) {
1013 unsigned khz = 0;
1014 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
1015
1016 retval = jtag_config_rclk(khz);
1017 if (ERROR_OK != retval)
1018 return retval;
1019 }
1020
1021 int cur_khz = jtag_get_speed_khz();
1022 retval = jtag_get_speed_readable(&cur_khz);
1023 if (ERROR_OK != retval)
1024 return retval;
1025
1026 if (cur_khz)
1027 command_print(CMD_CTX, "RCLK not supported - fallback to %d kHz", cur_khz);
1028 else
1029 command_print(CMD_CTX, "RCLK - adaptive");
1030
1031 return retval;
1032 }
1033
1034 COMMAND_HANDLER(handle_jtag_reset_command)
1035 {
1036 if (CMD_ARGC != 2)
1037 return ERROR_COMMAND_SYNTAX_ERROR;
1038
1039 int trst = -1;
1040 if (CMD_ARGV[0][0] == '1')
1041 trst = 1;
1042 else if (CMD_ARGV[0][0] == '0')
1043 trst = 0;
1044 else
1045 return ERROR_COMMAND_SYNTAX_ERROR;
1046
1047 int srst = -1;
1048 if (CMD_ARGV[1][0] == '1')
1049 srst = 1;
1050 else if (CMD_ARGV[1][0] == '0')
1051 srst = 0;
1052 else
1053 return ERROR_COMMAND_SYNTAX_ERROR;
1054
1055 if (adapter_init(CMD_CTX) != ERROR_OK)
1056 return ERROR_JTAG_INIT_FAILED;
1057
1058 jtag_add_reset(trst, srst);
1059 return jtag_execute_queue();
1060 }
1061
1062 COMMAND_HANDLER(handle_runtest_command)
1063 {
1064 if (CMD_ARGC != 1)
1065 return ERROR_COMMAND_SYNTAX_ERROR;
1066
1067 unsigned num_clocks;
1068 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num_clocks);
1069
1070 jtag_add_runtest(num_clocks, TAP_IDLE);
1071 return jtag_execute_queue();
1072 }
1073
1074 /*
1075 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1076 * should be stable ... and *NOT* a shift state, otherwise free-running
1077 * jtag clocks could change the values latched by the update state.
1078 * Not surprisingly, this is the same constraint as SVF; the "irscan"
1079 * and "drscan" commands are a write-only subset of what SVF provides.
1080 */
1081
1082 COMMAND_HANDLER(handle_irscan_command)
1083 {
1084 int i;
1085 struct scan_field *fields;
1086 struct jtag_tap *tap = NULL;
1087 tap_state_t endstate;
1088
1089 if ((CMD_ARGC < 2) || (CMD_ARGC % 2))
1090 return ERROR_COMMAND_SYNTAX_ERROR;
1091
1092 /* optional "-endstate" "statename" at the end of the arguments,
1093 * so that e.g. IRPAUSE can let us load the data register before
1094 * entering RUN/IDLE to execute the instruction we load here.
1095 */
1096 endstate = TAP_IDLE;
1097
1098 if (CMD_ARGC >= 4) {
1099 /* have at least one pair of numbers.
1100 * is last pair the magic text? */
1101 if (strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2]) == 0) {
1102 endstate = tap_state_by_name(CMD_ARGV[CMD_ARGC - 1]);
1103 if (endstate == TAP_INVALID)
1104 return ERROR_COMMAND_SYNTAX_ERROR;
1105 if (!scan_is_safe(endstate))
1106 LOG_WARNING("unstable irscan endstate \"%s\"",
1107 CMD_ARGV[CMD_ARGC - 1]);
1108 CMD_ARGC -= 2;
1109 }
1110 }
1111
1112 int num_fields = CMD_ARGC / 2;
1113 if (num_fields > 1) {
1114 /* we really should be looking at plain_ir_scan if we want
1115 * anything more fancy.
1116 */
1117 LOG_ERROR("Specify a single value for tap");
1118 return ERROR_COMMAND_SYNTAX_ERROR;
1119 }
1120
1121 fields = calloc(num_fields, sizeof(*fields));
1122
1123 int retval;
1124 for (i = 0; i < num_fields; i++) {
1125 tap = jtag_tap_by_string(CMD_ARGV[i*2]);
1126 if (tap == NULL) {
1127 free(fields);
1128 command_print(CMD_CTX, "Tap: %s unknown", CMD_ARGV[i*2]);
1129
1130 return ERROR_FAIL;
1131 }
1132 int field_size = tap->ir_length;
1133 fields[i].num_bits = field_size;
1134 uint8_t *v = malloc(DIV_ROUND_UP(field_size, 8));
1135
1136 uint64_t value;
1137 retval = parse_u64(CMD_ARGV[i * 2 + 1], &value);
1138 if (ERROR_OK != retval)
1139 goto error_return;
1140 buf_set_u64(v, 0, field_size, value);
1141 fields[i].out_value = v;
1142 fields[i].in_value = NULL;
1143 }
1144
1145 /* did we have an endstate? */
1146 jtag_add_ir_scan(tap, fields, endstate);
1147
1148 retval = jtag_execute_queue();
1149
1150 error_return:
1151 for (i = 0; i < num_fields; i++) {
1152 if (NULL != fields[i].out_value)
1153 free((void *)fields[i].out_value);
1154 }
1155
1156 free(fields);
1157
1158 return retval;
1159 }
1160
1161 COMMAND_HANDLER(handle_verify_ircapture_command)
1162 {
1163 if (CMD_ARGC > 1)
1164 return ERROR_COMMAND_SYNTAX_ERROR;
1165
1166 if (CMD_ARGC == 1) {
1167 bool enable;
1168 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1169 jtag_set_verify_capture_ir(enable);
1170 }
1171
1172 const char *status = jtag_will_verify_capture_ir() ? "enabled" : "disabled";
1173 command_print(CMD_CTX, "verify Capture-IR is %s", status);
1174
1175 return ERROR_OK;
1176 }
1177
1178 COMMAND_HANDLER(handle_verify_jtag_command)
1179 {
1180 if (CMD_ARGC > 1)
1181 return ERROR_COMMAND_SYNTAX_ERROR;
1182
1183 if (CMD_ARGC == 1) {
1184 bool enable;
1185 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1186 jtag_set_verify(enable);
1187 }
1188
1189 const char *status = jtag_will_verify() ? "enabled" : "disabled";
1190 command_print(CMD_CTX, "verify jtag capture is %s", status);
1191
1192 return ERROR_OK;
1193 }
1194
1195 COMMAND_HANDLER(handle_tms_sequence_command)
1196 {
1197 if (CMD_ARGC > 1)
1198 return ERROR_COMMAND_SYNTAX_ERROR;
1199
1200 if (CMD_ARGC == 1) {
1201 bool use_new_table;
1202 if (strcmp(CMD_ARGV[0], "short") == 0)
1203 use_new_table = true;
1204 else if (strcmp(CMD_ARGV[0], "long") == 0)
1205 use_new_table = false;
1206 else
1207 return ERROR_COMMAND_SYNTAX_ERROR;
1208
1209 tap_use_new_tms_table(use_new_table);
1210 }
1211
1212 command_print(CMD_CTX, "tms sequence is %s",
1213 tap_uses_new_tms_table() ? "short" : "long");
1214
1215 return ERROR_OK;
1216 }
1217
1218 COMMAND_HANDLER(handle_jtag_flush_queue_sleep)
1219 {
1220 if (CMD_ARGC != 1)
1221 return ERROR_COMMAND_SYNTAX_ERROR;
1222
1223 int sleep_ms;
1224 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], sleep_ms);
1225
1226 jtag_set_flush_queue_sleep(sleep_ms);
1227
1228 return ERROR_OK;
1229 }
1230
1231 COMMAND_HANDLER(handle_wait_srst_deassert)
1232 {
1233 if (CMD_ARGC != 1)
1234 return ERROR_COMMAND_SYNTAX_ERROR;
1235
1236 int timeout_ms;
1237 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], timeout_ms);
1238 if ((timeout_ms <= 0) || (timeout_ms > 100000)) {
1239 LOG_ERROR("Timeout must be an integer between 0 and 100000");
1240 return ERROR_FAIL;
1241 }
1242
1243 LOG_USER("Waiting for srst assert + deassert for at most %dms", timeout_ms);
1244 int asserted_yet;
1245 long long then = timeval_ms();
1246 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1247 if ((timeval_ms() - then) > timeout_ms) {
1248 LOG_ERROR("Timed out");
1249 return ERROR_FAIL;
1250 }
1251 if (asserted_yet)
1252 break;
1253 }
1254 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1255 if ((timeval_ms() - then) > timeout_ms) {
1256 LOG_ERROR("Timed out");
1257 return ERROR_FAIL;
1258 }
1259 if (!asserted_yet)
1260 break;
1261 }
1262
1263 return ERROR_OK;
1264 }
1265
1266 static const struct command_registration jtag_command_handlers[] = {
1267
1268 {
1269 .name = "jtag_flush_queue_sleep",
1270 .handler = handle_jtag_flush_queue_sleep,
1271 .mode = COMMAND_ANY,
1272 .help = "For debug purposes(simulate long delays of interface) "
1273 "to test performance or change in behavior. Default 0ms.",
1274 .usage = "[sleep in ms]",
1275 },
1276 {
1277 .name = "jtag_rclk",
1278 .handler = handle_jtag_rclk_command,
1279 .mode = COMMAND_ANY,
1280 .help = "With an argument, change to to use adaptive clocking "
1281 "if possible; else to use the fallback speed. "
1282 "With or without argument, display current setting.",
1283 .usage = "[fallback_speed_khz]",
1284 },
1285 {
1286 .name = "jtag_ntrst_delay",
1287 .handler = handle_jtag_ntrst_delay_command,
1288 .mode = COMMAND_ANY,
1289 .help = "delay after deasserting trst in ms",
1290 .usage = "[milliseconds]",
1291 },
1292 {
1293 .name = "jtag_ntrst_assert_width",
1294 .handler = handle_jtag_ntrst_assert_width_command,
1295 .mode = COMMAND_ANY,
1296 .help = "delay after asserting trst in ms",
1297 .usage = "[milliseconds]",
1298 },
1299 {
1300 .name = "scan_chain",
1301 .handler = handle_scan_chain_command,
1302 .mode = COMMAND_ANY,
1303 .help = "print current scan chain configuration",
1304 .usage = ""
1305 },
1306 {
1307 .name = "jtag_reset",
1308 .handler = handle_jtag_reset_command,
1309 .mode = COMMAND_EXEC,
1310 .help = "Set reset line values. Value '1' is active, "
1311 "value '0' is inactive.",
1312 .usage = "trst_active srst_active",
1313 },
1314 {
1315 .name = "runtest",
1316 .handler = handle_runtest_command,
1317 .mode = COMMAND_EXEC,
1318 .help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
1319 .usage = "num_cycles"
1320 },
1321 {
1322 .name = "irscan",
1323 .handler = handle_irscan_command,
1324 .mode = COMMAND_EXEC,
1325 .help = "Execute Instruction Register (DR) scan. The "
1326 "specified opcodes are put into each TAP's IR, "
1327 "and other TAPs are put in BYPASS.",
1328 .usage = "[tap_name instruction]* ['-endstate' state_name]",
1329 },
1330 {
1331 .name = "verify_ircapture",
1332 .handler = handle_verify_ircapture_command,
1333 .mode = COMMAND_ANY,
1334 .help = "Display or assign flag controlling whether to "
1335 "verify values captured during Capture-IR.",
1336 .usage = "['enable'|'disable']",
1337 },
1338 {
1339 .name = "verify_jtag",
1340 .handler = handle_verify_jtag_command,
1341 .mode = COMMAND_ANY,
1342 .help = "Display or assign flag controlling whether to "
1343 "verify values captured during IR and DR scans.",
1344 .usage = "['enable'|'disable']",
1345 },
1346 {
1347 .name = "tms_sequence",
1348 .handler = handle_tms_sequence_command,
1349 .mode = COMMAND_ANY,
1350 .help = "Display or change what style TMS sequences to use "
1351 "for JTAG state transitions: short (default) or "
1352 "long. Only for working around JTAG bugs.",
1353 /* Specifically for working around DRIVER bugs... */
1354 .usage = "['short'|'long']",
1355 },
1356 {
1357 .name = "wait_srst_deassert",
1358 .handler = handle_wait_srst_deassert,
1359 .mode = COMMAND_ANY,
1360 .help = "Wait for an SRST deassert. "
1361 "Useful for cases where you need something to happen within ms "
1362 "of an srst deassert. Timeout in ms ",
1363 .usage = "ms",
1364 },
1365 {
1366 .name = "jtag",
1367 .mode = COMMAND_ANY,
1368 .help = "perform jtag tap actions",
1369 .usage = "",
1370
1371 .chain = jtag_subcommand_handlers,
1372 },
1373 {
1374 .chain = jtag_command_handlers_to_move,
1375 },
1376 COMMAND_REGISTRATION_DONE
1377 };
1378
1379 int jtag_register_commands(struct command_context *cmd_ctx)
1380 {
1381 return register_commands(cmd_ctx, NULL, jtag_command_handlers);
1382 }
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