fb060f9a7b7ab44d4be9ee75f9cb61718b4b9094
[openocd.git] / src / jtag / tcl.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007-2010 √ėyvind 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 extern struct jtag_interface *jtag_interface;
63
64 struct jtag_tap *jtag_tap_by_jim_obj(Jim_Interp *interp, Jim_Obj *o)
65 {
66 const char *cp = Jim_GetString(o, NULL);
67 struct jtag_tap *t = cp ? jtag_tap_by_string(cp) : NULL;
68 if (NULL == cp)
69 cp = "(unknown)";
70 if (NULL == t)
71 Jim_SetResultFormatted(interp, "Tap '%s' could not be found", cp);
72 return t;
73 }
74
75 static bool scan_is_safe(tap_state_t state)
76 {
77 switch (state) {
78 case TAP_RESET:
79 case TAP_IDLE:
80 case TAP_DRPAUSE:
81 case TAP_IRPAUSE:
82 return true;
83 default:
84 return false;
85 }
86 }
87
88 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
89 {
90 int retval;
91 struct scan_field *fields;
92 int num_fields;
93 int field_count = 0;
94 int i, e;
95 struct jtag_tap *tap;
96 tap_state_t endstate;
97
98 /* args[1] = device
99 * args[2] = num_bits
100 * args[3] = hex string
101 * ... repeat num bits and hex string ...
102 *
103 * .. optionally:
104 * args[N-2] = "-endstate"
105 * args[N-1] = statename
106 */
107 if ((argc < 4) || ((argc % 2) != 0)) {
108 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
109 return JIM_ERR;
110 }
111
112 endstate = TAP_IDLE;
113
114 script_debug(interp, "drscan", argc, args);
115
116 /* validate arguments as numbers */
117 e = JIM_OK;
118 for (i = 2; i < argc; i += 2) {
119 long bits;
120 const char *cp;
121
122 e = Jim_GetLong(interp, args[i], &bits);
123 /* If valid - try next arg */
124 if (e == JIM_OK)
125 continue;
126
127 /* Not valid.. are we at the end? */
128 if (((i + 2) != argc)) {
129 /* nope, then error */
130 return e;
131 }
132
133 /* it could be: "-endstate FOO"
134 * e.g. DRPAUSE so we can issue more instructions
135 * before entering RUN/IDLE and executing them.
136 */
137
138 /* get arg as a string. */
139 cp = Jim_GetString(args[i], NULL);
140 /* is it the magic? */
141 if (0 == strcmp("-endstate", cp)) {
142 /* is the statename valid? */
143 cp = Jim_GetString(args[i + 1], NULL);
144
145 /* see if it is a valid state name */
146 endstate = tap_state_by_name(cp);
147 if (endstate < 0) {
148 /* update the error message */
149 Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
150 } else {
151 if (!scan_is_safe(endstate))
152 LOG_WARNING("drscan with unsafe "
153 "endstate \"%s\"", cp);
154
155 /* valid - so clear the error */
156 e = JIM_OK;
157 /* and remove the last 2 args */
158 argc -= 2;
159 }
160 }
161
162 /* Still an error? */
163 if (e != JIM_OK)
164 return e; /* too bad */
165 } /* validate args */
166
167 assert(e == JIM_OK);
168
169 tap = jtag_tap_by_jim_obj(interp, args[1]);
170 if (tap == NULL)
171 return JIM_ERR;
172
173 num_fields = (argc-2)/2;
174 assert(num_fields > 0);
175 fields = malloc(sizeof(struct scan_field) * num_fields);
176 for (i = 2; i < argc; i += 2) {
177 long bits;
178 int len;
179 const char *str;
180
181 Jim_GetLong(interp, args[i], &bits);
182 str = Jim_GetString(args[i + 1], &len);
183
184 fields[field_count].num_bits = bits;
185 void *t = malloc(DIV_ROUND_UP(bits, 8));
186 fields[field_count].out_value = t;
187 str_to_buf(str, len, t, bits, 0);
188 fields[field_count].in_value = t;
189 field_count++;
190 }
191
192 jtag_add_dr_scan(tap, num_fields, fields, endstate);
193
194 retval = jtag_execute_queue();
195 if (retval != ERROR_OK) {
196 Jim_SetResultString(interp, "drscan: jtag execute failed", -1);
197 return JIM_ERR;
198 }
199
200 field_count = 0;
201 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
202 for (i = 2; i < argc; i += 2) {
203 long bits;
204 char *str;
205
206 Jim_GetLong(interp, args[i], &bits);
207 str = buf_to_str(fields[field_count].in_value, bits, 16);
208 free((void *)fields[field_count].out_value);
209
210 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
211 free(str);
212 field_count++;
213 }
214
215 Jim_SetResult(interp, list);
216
217 free(fields);
218
219 return JIM_OK;
220 }
221
222
223 static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
224 {
225 tap_state_t states[8];
226
227 if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(states) + 1))) {
228 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
229 return JIM_ERR;
230 }
231
232 script_debug(interp, "pathmove", argc, args);
233
234 int i;
235 for (i = 0; i < argc-1; i++) {
236 const char *cp;
237 cp = Jim_GetString(args[i + 1], NULL);
238 states[i] = tap_state_by_name(cp);
239 if (states[i] < 0) {
240 /* update the error message */
241 Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
242 return JIM_ERR;
243 }
244 }
245
246 if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue() != ERROR_OK)) {
247 Jim_SetResultString(interp, "pathmove: jtag execute failed", -1);
248 return JIM_ERR;
249 }
250
251 jtag_add_pathmove(argc - 2, states + 1);
252
253 if (jtag_execute_queue() != ERROR_OK) {
254 Jim_SetResultString(interp, "pathmove: failed", -1);
255 return JIM_ERR;
256 }
257
258 return JIM_OK;
259 }
260
261
262 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
263 {
264 script_debug(interp, "flush_count", argc, args);
265
266 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
267
268 return JIM_OK;
269 }
270
271 /* REVISIT Just what about these should "move" ... ?
272 * These registrations, into the main JTAG table?
273 *
274 * There's a minor compatibility issue, these all show up twice;
275 * that's not desirable:
276 * - jtag drscan ... NOT DOCUMENTED!
277 * - drscan ...
278 *
279 * The "irscan" command (for example) doesn't show twice.
280 */
281 static const struct command_registration jtag_command_handlers_to_move[] = {
282 {
283 .name = "drscan",
284 .mode = COMMAND_EXEC,
285 .jim_handler = Jim_Command_drscan,
286 .help = "Execute Data Register (DR) scan for one TAP. "
287 "Other TAPs must be in BYPASS mode.",
288 .usage = "tap_name [num_bits value]* ['-endstate' state_name]",
289 },
290 {
291 .name = "flush_count",
292 .mode = COMMAND_EXEC,
293 .jim_handler = Jim_Command_flush_count,
294 .help = "Returns the number of times the JTAG queue "
295 "has been flushed.",
296 },
297 {
298 .name = "pathmove",
299 .mode = COMMAND_EXEC,
300 .jim_handler = Jim_Command_pathmove,
301 .usage = "start_state state1 [state2 [state3 ...]]",
302 .help = "Move JTAG state machine from current state "
303 "(start_state) to state1, then state2, state3, etc.",
304 },
305 COMMAND_REGISTRATION_DONE
306 };
307
308
309 enum jtag_tap_cfg_param {
310 JCFG_EVENT
311 };
312
313 static Jim_Nvp nvp_config_opts[] = {
314 { .name = "-event", .value = JCFG_EVENT },
315
316 { .name = NULL, .value = -1 }
317 };
318
319 static int jtag_tap_configure_event(Jim_GetOptInfo *goi, struct jtag_tap *tap)
320 {
321 if (goi->argc == 0) {
322 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name> ...");
323 return JIM_ERR;
324 }
325
326 Jim_Nvp *n;
327 int e = Jim_GetOpt_Nvp(goi, nvp_jtag_tap_event, &n);
328 if (e != JIM_OK) {
329 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
330 return e;
331 }
332
333 if (goi->isconfigure) {
334 if (goi->argc != 1) {
335 Jim_WrongNumArgs(goi->interp,
336 goi->argc,
337 goi->argv,
338 "-event <event-name> <event-body>");
339 return JIM_ERR;
340 }
341 } else {
342 if (goi->argc != 0) {
343 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name>");
344 return JIM_ERR;
345 }
346 }
347
348 struct jtag_tap_event_action *jteap = tap->event_action;
349 /* replace existing event body */
350 bool found = false;
351 while (jteap) {
352 if (jteap->event == (enum jtag_event)n->value) {
353 found = true;
354 break;
355 }
356 jteap = jteap->next;
357 }
358
359 Jim_SetEmptyResult(goi->interp);
360
361 if (goi->isconfigure) {
362 if (!found)
363 jteap = calloc(1, sizeof(*jteap));
364 else if (NULL != jteap->body)
365 Jim_DecrRefCount(goi->interp, jteap->body);
366
367 jteap->interp = goi->interp;
368 jteap->event = n->value;
369
370 Jim_Obj *o;
371 Jim_GetOpt_Obj(goi, &o);
372 jteap->body = Jim_DuplicateObj(goi->interp, o);
373 Jim_IncrRefCount(jteap->body);
374
375 if (!found) {
376 /* add to head of event list */
377 jteap->next = tap->event_action;
378 tap->event_action = jteap;
379 }
380 } else if (found) {
381 jteap->interp = goi->interp;
382 Jim_SetResult(goi->interp,
383 Jim_DuplicateObj(goi->interp, jteap->body));
384 }
385 return JIM_OK;
386 }
387
388 static int jtag_tap_configure_cmd(Jim_GetOptInfo *goi, struct jtag_tap *tap)
389 {
390 /* parse config or cget options */
391 while (goi->argc > 0) {
392 Jim_SetEmptyResult(goi->interp);
393
394 Jim_Nvp *n;
395 int e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
396 if (e != JIM_OK) {
397 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
398 return e;
399 }
400
401 switch (n->value) {
402 case JCFG_EVENT:
403 e = jtag_tap_configure_event(goi, tap);
404 if (e != JIM_OK)
405 return e;
406 break;
407 default:
408 Jim_SetResultFormatted(goi->interp, "unknown event: %s", n->name);
409 return JIM_ERR;
410 }
411 }
412
413 return JIM_OK;
414 }
415
416 static int is_bad_irval(int ir_length, jim_wide w)
417 {
418 jim_wide v = 1;
419
420 v <<= ir_length;
421 v -= 1;
422 v = ~v;
423 return (w & v) != 0;
424 }
425
426 static int jim_newtap_expected_id(Jim_Nvp *n, Jim_GetOptInfo *goi,
427 struct jtag_tap *pTap)
428 {
429 jim_wide w;
430 int e = Jim_GetOpt_Wide(goi, &w);
431 if (e != JIM_OK) {
432 Jim_SetResultFormatted(goi->interp, "option: %s bad parameter", n->name);
433 return e;
434 }
435
436 unsigned expected_len = sizeof(uint32_t) * pTap->expected_ids_cnt;
437 uint32_t *new_expected_ids = malloc(expected_len + sizeof(uint32_t));
438 if (new_expected_ids == NULL) {
439 Jim_SetResultFormatted(goi->interp, "no memory");
440 return JIM_ERR;
441 }
442
443 memcpy(new_expected_ids, pTap->expected_ids, expected_len);
444
445 new_expected_ids[pTap->expected_ids_cnt] = w;
446
447 free(pTap->expected_ids);
448 pTap->expected_ids = new_expected_ids;
449 pTap->expected_ids_cnt++;
450
451 return JIM_OK;
452 }
453
454 #define NTAP_OPT_IRLEN 0
455 #define NTAP_OPT_IRMASK 1
456 #define NTAP_OPT_IRCAPTURE 2
457 #define NTAP_OPT_ENABLED 3
458 #define NTAP_OPT_DISABLED 4
459 #define NTAP_OPT_EXPECTED_ID 5
460 #define NTAP_OPT_VERSION 6
461
462 static int jim_newtap_ir_param(Jim_Nvp *n, Jim_GetOptInfo *goi,
463 struct jtag_tap *pTap)
464 {
465 jim_wide w;
466 int e = Jim_GetOpt_Wide(goi, &w);
467 if (e != JIM_OK) {
468 Jim_SetResultFormatted(goi->interp,
469 "option: %s bad parameter", n->name);
470 return e;
471 }
472 switch (n->value) {
473 case NTAP_OPT_IRLEN:
474 if (w > (jim_wide) (8 * sizeof(pTap->ir_capture_value))) {
475 LOG_WARNING("%s: huge IR length %d",
476 pTap->dotted_name, (int) w);
477 }
478 pTap->ir_length = w;
479 break;
480 case NTAP_OPT_IRMASK:
481 if (is_bad_irval(pTap->ir_length, w)) {
482 LOG_ERROR("%s: IR mask %x too big",
483 pTap->dotted_name,
484 (int) w);
485 return JIM_ERR;
486 }
487 if ((w & 3) != 3)
488 LOG_WARNING("%s: nonstandard IR mask", pTap->dotted_name);
489 pTap->ir_capture_mask = w;
490 break;
491 case NTAP_OPT_IRCAPTURE:
492 if (is_bad_irval(pTap->ir_length, w)) {
493 LOG_ERROR("%s: IR capture %x too big",
494 pTap->dotted_name, (int) w);
495 return JIM_ERR;
496 }
497 if ((w & 3) != 1)
498 LOG_WARNING("%s: nonstandard IR value",
499 pTap->dotted_name);
500 pTap->ir_capture_value = w;
501 break;
502 default:
503 return JIM_ERR;
504 }
505 return JIM_OK;
506 }
507
508 static int jim_newtap_cmd(Jim_GetOptInfo *goi)
509 {
510 struct jtag_tap *pTap;
511 int x;
512 int e;
513 Jim_Nvp *n;
514 char *cp;
515 const Jim_Nvp opts[] = {
516 { .name = "-irlen", .value = NTAP_OPT_IRLEN },
517 { .name = "-irmask", .value = NTAP_OPT_IRMASK },
518 { .name = "-ircapture", .value = NTAP_OPT_IRCAPTURE },
519 { .name = "-enable", .value = NTAP_OPT_ENABLED },
520 { .name = "-disable", .value = NTAP_OPT_DISABLED },
521 { .name = "-expected-id", .value = NTAP_OPT_EXPECTED_ID },
522 { .name = "-ignore-version", .value = NTAP_OPT_VERSION },
523 { .name = NULL, .value = -1 },
524 };
525
526 pTap = calloc(1, sizeof(struct jtag_tap));
527 if (!pTap) {
528 Jim_SetResultFormatted(goi->interp, "no memory");
529 return JIM_ERR;
530 }
531
532 /*
533 * we expect CHIP + TAP + OPTIONS
534 * */
535 if (goi->argc < 3) {
536 Jim_SetResultFormatted(goi->interp, "Missing CHIP TAP OPTIONS ....");
537 free(pTap);
538 return JIM_ERR;
539 }
540 Jim_GetOpt_String(goi, &cp, NULL);
541 pTap->chip = strdup(cp);
542
543 Jim_GetOpt_String(goi, &cp, NULL);
544 pTap->tapname = strdup(cp);
545
546 /* name + dot + name + null */
547 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
548 cp = malloc(x);
549 sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
550 pTap->dotted_name = cp;
551
552 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
553 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
554
555 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
556 * that the default. The "-irlen" and "-irmask" options are only
557 * needed to cope with nonstandard TAPs, or to specify more bits.
558 */
559 pTap->ir_capture_mask = 0x03;
560 pTap->ir_capture_value = 0x01;
561
562 while (goi->argc) {
563 e = Jim_GetOpt_Nvp(goi, opts, &n);
564 if (e != JIM_OK) {
565 Jim_GetOpt_NvpUnknown(goi, opts, 0);
566 free((void *)pTap->dotted_name);
567 free(pTap);
568 return e;
569 }
570 LOG_DEBUG("Processing option: %s", n->name);
571 switch (n->value) {
572 case NTAP_OPT_ENABLED:
573 pTap->disabled_after_reset = false;
574 break;
575 case NTAP_OPT_DISABLED:
576 pTap->disabled_after_reset = true;
577 break;
578 case NTAP_OPT_EXPECTED_ID:
579 e = jim_newtap_expected_id(n, goi, pTap);
580 if (JIM_OK != e) {
581 free((void *)pTap->dotted_name);
582 free(pTap);
583 return e;
584 }
585 break;
586 case NTAP_OPT_IRLEN:
587 case NTAP_OPT_IRMASK:
588 case NTAP_OPT_IRCAPTURE:
589 e = jim_newtap_ir_param(n, goi, pTap);
590 if (JIM_OK != e) {
591 free((void *)pTap->dotted_name);
592 free(pTap);
593 return e;
594 }
595 break;
596 case NTAP_OPT_VERSION:
597 pTap->ignore_version = true;
598 break;
599 } /* switch (n->value) */
600 } /* while (goi->argc) */
601
602 /* default is enabled-after-reset */
603 pTap->enabled = !pTap->disabled_after_reset;
604
605 /* Did all the required option bits get cleared? */
606 if (pTap->ir_length != 0) {
607 jtag_tap_init(pTap);
608 return JIM_OK;
609 }
610
611 Jim_SetResultFormatted(goi->interp,
612 "newtap: %s missing IR length",
613 pTap->dotted_name);
614 jtag_tap_free(pTap);
615 return JIM_ERR;
616 }
617
618 static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
619 {
620 struct jtag_tap_event_action *jteap;
621
622 for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next) {
623 if (jteap->event != e)
624 continue;
625
626 Jim_Nvp *nvp = Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e);
627 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
628 tap->dotted_name, e, nvp->name,
629 Jim_GetString(jteap->body, NULL));
630
631 if (Jim_EvalObj(jteap->interp, jteap->body) != JIM_OK) {
632 Jim_MakeErrorMessage(jteap->interp);
633 LOG_USER("%s", Jim_GetString(Jim_GetResult(jteap->interp), NULL));
634 continue;
635 }
636
637 switch (e) {
638 case JTAG_TAP_EVENT_ENABLE:
639 case JTAG_TAP_EVENT_DISABLE:
640 /* NOTE: we currently assume the handlers
641 * can't fail. Right here is where we should
642 * really be verifying the scan chains ...
643 */
644 tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
645 LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
646 tap->enabled ? "enabled" : "disabled");
647 break;
648 default:
649 break;
650 }
651 }
652 }
653
654 static int jim_jtag_arp_init(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
655 {
656 Jim_GetOptInfo goi;
657 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
658 if (goi.argc != 0) {
659 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
660 return JIM_ERR;
661 }
662 struct command_context *context = current_command_context(interp);
663 int e = jtag_init_inner(context);
664 if (e != ERROR_OK) {
665 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
666 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
667 Jim_FreeNewObj(goi.interp, eObj);
668 return JIM_ERR;
669 }
670 return JIM_OK;
671 }
672
673 static int jim_jtag_arp_init_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
674 {
675 int e = ERROR_OK;
676 Jim_GetOptInfo goi;
677 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
678 if (goi.argc != 0) {
679 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
680 return JIM_ERR;
681 }
682 struct command_context *context = current_command_context(interp);
683 if (transport_is_jtag())
684 e = jtag_init_reset(context);
685 else if (transport_is_swd())
686 e = swd_init_reset(context);
687
688 if (e != ERROR_OK) {
689 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
690 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
691 Jim_FreeNewObj(goi.interp, eObj);
692 return JIM_ERR;
693 }
694 return JIM_OK;
695 }
696
697 int jim_jtag_newtap(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
698 {
699 Jim_GetOptInfo goi;
700 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
701 return jim_newtap_cmd(&goi);
702 }
703
704 static bool jtag_tap_enable(struct jtag_tap *t)
705 {
706 if (t->enabled)
707 return false;
708 jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
709 if (!t->enabled)
710 return false;
711
712 /* FIXME add JTAG sanity checks, w/o TLR
713 * - scan chain length grew by one (this)
714 * - IDs and IR lengths are as expected
715 */
716 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
717 return true;
718 }
719 static bool jtag_tap_disable(struct jtag_tap *t)
720 {
721 if (!t->enabled)
722 return false;
723 jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
724 if (t->enabled)
725 return false;
726
727 /* FIXME add JTAG sanity checks, w/o TLR
728 * - scan chain length shrank by one (this)
729 * - IDs and IR lengths are as expected
730 */
731 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
732 return true;
733 }
734
735 int jim_jtag_tap_enabler(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
736 {
737 const char *cmd_name = Jim_GetString(argv[0], NULL);
738 Jim_GetOptInfo goi;
739 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
740 if (goi.argc != 1) {
741 Jim_SetResultFormatted(goi.interp, "usage: %s <name>", cmd_name);
742 return JIM_ERR;
743 }
744
745 struct jtag_tap *t;
746
747 t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
748 if (t == NULL)
749 return JIM_ERR;
750
751 if (strcasecmp(cmd_name, "tapisenabled") == 0) {
752 /* do nothing, just return the value */
753 } else if (strcasecmp(cmd_name, "tapenable") == 0) {
754 if (!jtag_tap_enable(t)) {
755 LOG_WARNING("failed to enable tap %s", t->dotted_name);
756 return JIM_ERR;
757 }
758 } else if (strcasecmp(cmd_name, "tapdisable") == 0) {
759 if (!jtag_tap_disable(t)) {
760 LOG_WARNING("failed to disable tap %s", t->dotted_name);
761 return JIM_ERR;
762 }
763 } else {
764 LOG_ERROR("command '%s' unknown", cmd_name);
765 return JIM_ERR;
766 }
767 bool e = t->enabled;
768 Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
769 return JIM_OK;
770 }
771
772 int jim_jtag_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
773 {
774 const char *cmd_name = Jim_GetString(argv[0], NULL);
775 Jim_GetOptInfo goi;
776 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
777 goi.isconfigure = !strcmp(cmd_name, "configure");
778 if (goi.argc < 2 + goi.isconfigure) {
779 Jim_WrongNumArgs(goi.interp, 0, NULL,
780 "<tap_name> <attribute> ...");
781 return JIM_ERR;
782 }
783
784 struct jtag_tap *t;
785
786 Jim_Obj *o;
787 Jim_GetOpt_Obj(&goi, &o);
788 t = jtag_tap_by_jim_obj(goi.interp, o);
789 if (t == NULL)
790 return JIM_ERR;
791
792 return jtag_tap_configure_cmd(&goi, t);
793 }
794
795 static int jim_jtag_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
796 {
797 Jim_GetOptInfo goi;
798 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
799 if (goi.argc != 0) {
800 Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
801 return JIM_ERR;
802 }
803 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
804 struct jtag_tap *tap;
805
806 for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
807 Jim_ListAppendElement(goi.interp,
808 Jim_GetResult(goi.interp),
809 Jim_NewStringObj(goi.interp,
810 tap->dotted_name, -1));
811 }
812 return JIM_OK;
813 }
814
815 COMMAND_HANDLER(handle_jtag_init_command)
816 {
817 if (CMD_ARGC != 0)
818 return ERROR_COMMAND_SYNTAX_ERROR;
819
820 static bool jtag_initialized;
821 if (jtag_initialized) {
822 LOG_INFO("'jtag init' has already been called");
823 return ERROR_OK;
824 }
825 jtag_initialized = true;
826
827 LOG_DEBUG("Initializing jtag devices...");
828 return jtag_init(CMD_CTX);
829 }
830
831 static const struct command_registration jtag_subcommand_handlers[] = {
832 {
833 .name = "init",
834 .mode = COMMAND_ANY,
835 .handler = handle_jtag_init_command,
836 .help = "initialize jtag scan chain",
837 .usage = ""
838 },
839 {
840 .name = "arp_init",
841 .mode = COMMAND_ANY,
842 .jim_handler = jim_jtag_arp_init,
843 .help = "Validates JTAG scan chain against the list of "
844 "declared TAPs using just the four standard JTAG "
845 "signals.",
846 },
847 {
848 .name = "arp_init-reset",
849 .mode = COMMAND_ANY,
850 .jim_handler = jim_jtag_arp_init_reset,
851 .help = "Uses TRST and SRST to try resetting everything on "
852 "the JTAG scan chain, then performs 'jtag arp_init'."
853 },
854 {
855 .name = "newtap",
856 .mode = COMMAND_CONFIG,
857 .jim_handler = jim_jtag_newtap,
858 .help = "Create a new TAP instance named basename.tap_type, "
859 "and appends it to the scan chain.",
860 .usage = "basename tap_type '-irlen' count "
861 "['-enable'|'-disable'] "
862 "['-expected_id' number] "
863 "['-ignore-version'] "
864 "['-ircapture' number] "
865 "['-mask' number] ",
866 },
867 {
868 .name = "tapisenabled",
869 .mode = COMMAND_EXEC,
870 .jim_handler = jim_jtag_tap_enabler,
871 .help = "Returns a Tcl boolean (0/1) indicating whether "
872 "the TAP is enabled (1) or not (0).",
873 .usage = "tap_name",
874 },
875 {
876 .name = "tapenable",
877 .mode = COMMAND_EXEC,
878 .jim_handler = jim_jtag_tap_enabler,
879 .help = "Try to enable the specified TAP using the "
880 "'tap-enable' TAP event.",
881 .usage = "tap_name",
882 },
883 {
884 .name = "tapdisable",
885 .mode = COMMAND_EXEC,
886 .jim_handler = jim_jtag_tap_enabler,
887 .help = "Try to disable the specified TAP using the "
888 "'tap-disable' TAP event.",
889 .usage = "tap_name",
890 },
891 {
892 .name = "configure",
893 .mode = COMMAND_EXEC,
894 .jim_handler = jim_jtag_configure,
895 .help = "Provide a Tcl handler for the specified "
896 "TAP event.",
897 .usage = "tap_name '-event' event_name handler",
898 },
899 {
900 .name = "cget",
901 .mode = COMMAND_EXEC,
902 .jim_handler = jim_jtag_configure,
903 .help = "Return any Tcl handler for the specified "
904 "TAP event.",
905 .usage = "tap_name '-event' event_name",
906 },
907 {
908 .name = "names",
909 .mode = COMMAND_ANY,
910 .jim_handler = jim_jtag_names,
911 .help = "Returns list of all JTAG tap names.",
912 },
913 {
914 .chain = jtag_command_handlers_to_move,
915 },
916 COMMAND_REGISTRATION_DONE
917 };
918
919 void jtag_notify_event(enum jtag_event event)
920 {
921 struct jtag_tap *tap;
922
923 for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
924 jtag_tap_handle_event(tap, event);
925 }
926
927
928 COMMAND_HANDLER(handle_scan_chain_command)
929 {
930 struct jtag_tap *tap;
931 char expected_id[12];
932
933 tap = jtag_all_taps();
934 command_print(CMD_CTX,
935 " TapName Enabled IdCode Expected IrLen IrCap IrMask");
936 command_print(CMD_CTX,
937 "-- ------------------- -------- ---------- ---------- ----- ----- ------");
938
939 while (tap) {
940 uint32_t expected, expected_mask, ii;
941
942 snprintf(expected_id, sizeof expected_id, "0x%08x",
943 (unsigned)((tap->expected_ids_cnt > 0)
944 ? tap->expected_ids[0]
945 : 0));
946 if (tap->ignore_version)
947 expected_id[2] = '*';
948
949 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
950 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
951
952 command_print(CMD_CTX,
953 "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
954 tap->abs_chain_position,
955 tap->dotted_name,
956 tap->enabled ? 'Y' : 'n',
957 (unsigned int)(tap->idcode),
958 expected_id,
959 (unsigned int)(tap->ir_length),
960 (unsigned int)(expected),
961 (unsigned int)(expected_mask));
962
963 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
964 snprintf(expected_id, sizeof expected_id, "0x%08x",
965 (unsigned) tap->expected_ids[ii]);
966 if (tap->ignore_version)
967 expected_id[2] = '*';
968
969 command_print(CMD_CTX,
970 " %s",
971 expected_id);
972 }
973
974 tap = tap->next_tap;
975 }
976
977 return ERROR_OK;
978 }
979
980 COMMAND_HANDLER(handle_jtag_ntrst_delay_command)
981 {
982 if (CMD_ARGC > 1)
983 return ERROR_COMMAND_SYNTAX_ERROR;
984 if (CMD_ARGC == 1) {
985 unsigned delay;
986 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
987
988 jtag_set_ntrst_delay(delay);
989 }
990 command_print(CMD_CTX, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
991 return ERROR_OK;
992 }
993
994 COMMAND_HANDLER(handle_jtag_ntrst_assert_width_command)
995 {
996 if (CMD_ARGC > 1)
997 return ERROR_COMMAND_SYNTAX_ERROR;
998 if (CMD_ARGC == 1) {
999 unsigned delay;
1000 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
1001
1002 jtag_set_ntrst_assert_width(delay);
1003 }
1004 command_print(CMD_CTX, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1005 return ERROR_OK;
1006 }
1007
1008 COMMAND_HANDLER(handle_jtag_rclk_command)
1009 {
1010 if (CMD_ARGC > 1)
1011 return ERROR_COMMAND_SYNTAX_ERROR;
1012
1013 int retval = ERROR_OK;
1014 if (CMD_ARGC == 1) {
1015 unsigned khz = 0;
1016 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
1017
1018 retval = jtag_config_rclk(khz);
1019 if (ERROR_OK != retval)
1020 return retval;
1021 }
1022
1023 int cur_khz = jtag_get_speed_khz();
1024 retval = jtag_get_speed_readable(&cur_khz);
1025 if (ERROR_OK != retval)
1026 return retval;
1027
1028 if (cur_khz)
1029 command_print(CMD_CTX, "RCLK not supported - fallback to %d kHz", cur_khz);
1030 else
1031 command_print(CMD_CTX, "RCLK - adaptive");
1032
1033 return retval;
1034 }
1035
1036 COMMAND_HANDLER(handle_jtag_reset_command)
1037 {
1038 if (CMD_ARGC != 2)
1039 return ERROR_COMMAND_SYNTAX_ERROR;
1040
1041 int trst = -1;
1042 if (CMD_ARGV[0][0] == '1')
1043 trst = 1;
1044 else if (CMD_ARGV[0][0] == '0')
1045 trst = 0;
1046 else
1047 return ERROR_COMMAND_SYNTAX_ERROR;
1048
1049 int srst = -1;
1050 if (CMD_ARGV[1][0] == '1')
1051 srst = 1;
1052 else if (CMD_ARGV[1][0] == '0')
1053 srst = 0;
1054 else
1055 return ERROR_COMMAND_SYNTAX_ERROR;
1056
1057 if (adapter_init(CMD_CTX) != ERROR_OK)
1058 return ERROR_JTAG_INIT_FAILED;
1059
1060 jtag_add_reset(trst, srst);
1061 return jtag_execute_queue();
1062 }
1063
1064 COMMAND_HANDLER(handle_runtest_command)
1065 {
1066 if (CMD_ARGC != 1)
1067 return ERROR_COMMAND_SYNTAX_ERROR;
1068
1069 unsigned num_clocks;
1070 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num_clocks);
1071
1072 jtag_add_runtest(num_clocks, TAP_IDLE);
1073 return jtag_execute_queue();
1074 }
1075
1076 /*
1077 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1078 * should be stable ... and *NOT* a shift state, otherwise free-running
1079 * jtag clocks could change the values latched by the update state.
1080 * Not surprisingly, this is the same constraint as SVF; the "irscan"
1081 * and "drscan" commands are a write-only subset of what SVF provides.
1082 */
1083
1084 COMMAND_HANDLER(handle_irscan_command)
1085 {
1086 int i;
1087 struct scan_field *fields;
1088 struct jtag_tap *tap = NULL;
1089 tap_state_t endstate;
1090
1091 if ((CMD_ARGC < 2) || (CMD_ARGC % 2))
1092 return ERROR_COMMAND_SYNTAX_ERROR;
1093
1094 /* optional "-endstate" "statename" at the end of the arguments,
1095 * so that e.g. IRPAUSE can let us load the data register before
1096 * entering RUN/IDLE to execute the instruction we load here.
1097 */
1098 endstate = TAP_IDLE;
1099
1100 if (CMD_ARGC >= 4) {
1101 /* have at least one pair of numbers.
1102 * is last pair the magic text? */
1103 if (strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2]) == 0) {
1104 endstate = tap_state_by_name(CMD_ARGV[CMD_ARGC - 1]);
1105 if (endstate == TAP_INVALID)
1106 return ERROR_COMMAND_SYNTAX_ERROR;
1107 if (!scan_is_safe(endstate))
1108 LOG_WARNING("unstable irscan endstate \"%s\"",
1109 CMD_ARGV[CMD_ARGC - 1]);
1110 CMD_ARGC -= 2;
1111 }
1112 }
1113
1114 int num_fields = CMD_ARGC / 2;
1115 if (num_fields > 1) {
1116 /* we really should be looking at plain_ir_scan if we want
1117 * anything more fancy.
1118 */
1119 LOG_ERROR("Specify a single value for tap");
1120 return ERROR_COMMAND_SYNTAX_ERROR;
1121 }
1122
1123 fields = calloc(num_fields, sizeof(*fields));
1124
1125 int retval;
1126 for (i = 0; i < num_fields; i++) {
1127 tap = jtag_tap_by_string(CMD_ARGV[i*2]);
1128 if (tap == NULL) {
1129 free(fields);
1130 command_print(CMD_CTX, "Tap: %s unknown", CMD_ARGV[i*2]);
1131
1132 return ERROR_FAIL;
1133 }
1134 int field_size = tap->ir_length;
1135 fields[i].num_bits = field_size;
1136 fields[i].out_value = malloc(DIV_ROUND_UP(field_size, 8));
1137
1138 uint64_t value;
1139 retval = parse_u64(CMD_ARGV[i * 2 + 1], &value);
1140 if (ERROR_OK != retval)
1141 goto error_return;
1142 void *v = (void *)fields[i].out_value;
1143 buf_set_u64(v, 0, field_size, value);
1144 fields[i].in_value = NULL;
1145 }
1146
1147 /* did we have an endstate? */
1148 jtag_add_ir_scan(tap, fields, endstate);
1149
1150 retval = jtag_execute_queue();
1151
1152 error_return:
1153 for (i = 0; i < num_fields; i++) {
1154 if (NULL != fields[i].out_value)
1155 free((void *)fields[i].out_value);
1156 }
1157
1158 free(fields);
1159
1160 return retval;
1161 }
1162
1163 COMMAND_HANDLER(handle_verify_ircapture_command)
1164 {
1165 if (CMD_ARGC > 1)
1166 return ERROR_COMMAND_SYNTAX_ERROR;
1167
1168 if (CMD_ARGC == 1) {
1169 bool enable;
1170 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1171 jtag_set_verify_capture_ir(enable);
1172 }
1173
1174 const char *status = jtag_will_verify_capture_ir() ? "enabled" : "disabled";
1175 command_print(CMD_CTX, "verify Capture-IR is %s", status);
1176
1177 return ERROR_OK;
1178 }
1179
1180 COMMAND_HANDLER(handle_verify_jtag_command)
1181 {
1182 if (CMD_ARGC > 1)
1183 return ERROR_COMMAND_SYNTAX_ERROR;
1184
1185 if (CMD_ARGC == 1) {
1186 bool enable;
1187 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1188 jtag_set_verify(enable);
1189 }
1190
1191 const char *status = jtag_will_verify() ? "enabled" : "disabled";
1192 command_print(CMD_CTX, "verify jtag capture is %s", status);
1193
1194 return ERROR_OK;
1195 }
1196
1197 COMMAND_HANDLER(handle_tms_sequence_command)
1198 {
1199 if (CMD_ARGC > 1)
1200 return ERROR_COMMAND_SYNTAX_ERROR;
1201
1202 if (CMD_ARGC == 1) {
1203 bool use_new_table;
1204 if (strcmp(CMD_ARGV[0], "short") == 0)
1205 use_new_table = true;
1206 else if (strcmp(CMD_ARGV[0], "long") == 0)
1207 use_new_table = false;
1208 else
1209 return ERROR_COMMAND_SYNTAX_ERROR;
1210
1211 tap_use_new_tms_table(use_new_table);
1212 }
1213
1214 command_print(CMD_CTX, "tms sequence is %s",
1215 tap_uses_new_tms_table() ? "short" : "long");
1216
1217 return ERROR_OK;
1218 }
1219
1220 COMMAND_HANDLER(handle_jtag_flush_queue_sleep)
1221 {
1222 if (CMD_ARGC != 1)
1223 return ERROR_COMMAND_SYNTAX_ERROR;
1224
1225 int sleep_ms;
1226 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], sleep_ms);
1227
1228 jtag_set_flush_queue_sleep(sleep_ms);
1229
1230 return ERROR_OK;
1231 }
1232
1233 COMMAND_HANDLER(handle_wait_srst_deassert)
1234 {
1235 if (CMD_ARGC != 1)
1236 return ERROR_COMMAND_SYNTAX_ERROR;
1237
1238 int timeout_ms;
1239 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], timeout_ms);
1240 if ((timeout_ms <= 0) || (timeout_ms > 100000)) {
1241 LOG_ERROR("Timeout must be an integer between 0 and 100000");
1242 return ERROR_FAIL;
1243 }
1244
1245 LOG_USER("Waiting for srst assert + deassert for at most %dms", timeout_ms);
1246 int asserted_yet;
1247 long long then = timeval_ms();
1248 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1249 if ((timeval_ms() - then) > timeout_ms) {
1250 LOG_ERROR("Timed out");
1251 return ERROR_FAIL;
1252 }
1253 if (asserted_yet)
1254 break;
1255 }
1256 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1257 if ((timeval_ms() - then) > timeout_ms) {
1258 LOG_ERROR("Timed out");
1259 return ERROR_FAIL;
1260 }
1261 if (!asserted_yet)
1262 break;
1263 }
1264
1265 return ERROR_OK;
1266 }
1267
1268 static const struct command_registration jtag_command_handlers[] = {
1269
1270 {
1271 .name = "jtag_flush_queue_sleep",
1272 .handler = handle_jtag_flush_queue_sleep,
1273 .mode = COMMAND_ANY,
1274 .help = "For debug purposes(simulate long delays of interface) "
1275 "to test performance or change in behavior. Default 0ms.",
1276 .usage = "[sleep in ms]",
1277 },
1278 {
1279 .name = "jtag_rclk",
1280 .handler = handle_jtag_rclk_command,
1281 .mode = COMMAND_ANY,
1282 .help = "With an argument, change to to use adaptive clocking "
1283 "if possible; else to use the fallback speed. "
1284 "With or without argument, display current setting.",
1285 .usage = "[fallback_speed_khz]",
1286 },
1287 {
1288 .name = "jtag_ntrst_delay",
1289 .handler = handle_jtag_ntrst_delay_command,
1290 .mode = COMMAND_ANY,
1291 .help = "delay after deasserting trst in ms",
1292 .usage = "[milliseconds]",
1293 },
1294 {
1295 .name = "jtag_ntrst_assert_width",
1296 .handler = handle_jtag_ntrst_assert_width_command,
1297 .mode = COMMAND_ANY,
1298 .help = "delay after asserting trst in ms",
1299 .usage = "[milliseconds]",
1300 },
1301 {
1302 .name = "scan_chain",
1303 .handler = handle_scan_chain_command,
1304 .mode = COMMAND_ANY,
1305 .help = "print current scan chain configuration",
1306 .usage = ""
1307 },
1308 {
1309 .name = "jtag_reset",
1310 .handler = handle_jtag_reset_command,
1311 .mode = COMMAND_EXEC,
1312 .help = "Set reset line values. Value '1' is active, "
1313 "value '0' is inactive.",
1314 .usage = "trst_active srst_active",
1315 },
1316 {
1317 .name = "runtest",
1318 .handler = handle_runtest_command,
1319 .mode = COMMAND_EXEC,
1320 .help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
1321 .usage = "num_cycles"
1322 },
1323 {
1324 .name = "irscan",
1325 .handler = handle_irscan_command,
1326 .mode = COMMAND_EXEC,
1327 .help = "Execute Instruction Register (DR) scan. The "
1328 "specified opcodes are put into each TAP's IR, "
1329 "and other TAPs are put in BYPASS.",
1330 .usage = "[tap_name instruction]* ['-endstate' state_name]",
1331 },
1332 {
1333 .name = "verify_ircapture",
1334 .handler = handle_verify_ircapture_command,
1335 .mode = COMMAND_ANY,
1336 .help = "Display or assign flag controlling whether to "
1337 "verify values captured during Capture-IR.",
1338 .usage = "['enable'|'disable']",
1339 },
1340 {
1341 .name = "verify_jtag",
1342 .handler = handle_verify_jtag_command,
1343 .mode = COMMAND_ANY,
1344 .help = "Display or assign flag controlling whether to "
1345 "verify values captured during IR and DR scans.",
1346 .usage = "['enable'|'disable']",
1347 },
1348 {
1349 .name = "tms_sequence",
1350 .handler = handle_tms_sequence_command,
1351 .mode = COMMAND_ANY,
1352 .help = "Display or change what style TMS sequences to use "
1353 "for JTAG state transitions: short (default) or "
1354 "long. Only for working around JTAG bugs.",
1355 /* Specifically for working around DRIVER bugs... */
1356 .usage = "['short'|'long']",
1357 },
1358 {
1359 .name = "wait_srst_deassert",
1360 .handler = handle_wait_srst_deassert,
1361 .mode = COMMAND_ANY,
1362 .help = "Wait for an SRST deassert. "
1363 "Useful for cases where you need something to happen within ms "
1364 "of an srst deassert. Timeout in ms ",
1365 .usage = "ms",
1366 },
1367 {
1368 .name = "jtag",
1369 .mode = COMMAND_ANY,
1370 .help = "perform jtag tap actions",
1371 .usage = "",
1372
1373 .chain = jtag_subcommand_handlers,
1374 },
1375 {
1376 .chain = jtag_command_handlers_to_move,
1377 },
1378 COMMAND_REGISTRATION_DONE
1379 };
1380
1381 int jtag_register_commands(struct command_context *cmd_ctx)
1382 {
1383 return register_commands(cmd_ctx, NULL, jtag_command_handlers);
1384 }