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mips: optimize read code for speed
[openocd/cederom.git] / src / jtag / tcl.c
blobb279b1f2bd7d1db7ebd9d1844312603c3aa3ec99
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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 free((void *)pTap->dotted_name);
471 return e;
472 }
473 switch (n->value) {
474 case NTAP_OPT_IRLEN:
475 if (w > (jim_wide) (8 * sizeof(pTap->ir_capture_value))) {
476 LOG_WARNING("%s: huge IR length %d",
477 pTap->dotted_name, (int) w);
478 }
479 pTap->ir_length = w;
480 break;
481 case NTAP_OPT_IRMASK:
482 if (is_bad_irval(pTap->ir_length, w)) {
483 LOG_ERROR("%s: IR mask %x too big",
484 pTap->dotted_name,
485 (int) w);
486 return JIM_ERR;
487 }
488 if ((w & 3) != 3)
489 LOG_WARNING("%s: nonstandard IR mask", pTap->dotted_name);
490 pTap->ir_capture_mask = w;
491 break;
492 case NTAP_OPT_IRCAPTURE:
493 if (is_bad_irval(pTap->ir_length, w)) {
494 LOG_ERROR("%s: IR capture %x too big",
495 pTap->dotted_name, (int) w);
496 return JIM_ERR;
497 }
498 if ((w & 3) != 1)
499 LOG_WARNING("%s: nonstandard IR value",
500 pTap->dotted_name);
501 pTap->ir_capture_value = w;
502 break;
503 default:
504 return JIM_ERR;
505 }
506 return JIM_OK;
507 }
508
509 static int jim_newtap_cmd(Jim_GetOptInfo *goi)
510 {
511 struct jtag_tap *pTap;
512 int x;
513 int e;
514 Jim_Nvp *n;
515 char *cp;
516 const Jim_Nvp opts[] = {
517 { .name = "-irlen", .value = NTAP_OPT_IRLEN },
518 { .name = "-irmask", .value = NTAP_OPT_IRMASK },
519 { .name = "-ircapture", .value = NTAP_OPT_IRCAPTURE },
520 { .name = "-enable", .value = NTAP_OPT_ENABLED },
521 { .name = "-disable", .value = NTAP_OPT_DISABLED },
522 { .name = "-expected-id", .value = NTAP_OPT_EXPECTED_ID },
523 { .name = "-ignore-version", .value = NTAP_OPT_VERSION },
524 { .name = NULL, .value = -1 },
525 };
526
527 pTap = calloc(1, sizeof(struct jtag_tap));
528 if (!pTap) {
529 Jim_SetResultFormatted(goi->interp, "no memory");
530 return JIM_ERR;
531 }
532
533 /*
534 * we expect CHIP + TAP + OPTIONS
535 * */
536 if (goi->argc < 3) {
537 Jim_SetResultFormatted(goi->interp, "Missing CHIP TAP OPTIONS ....");
538 free(pTap);
539 return JIM_ERR;
540 }
541 Jim_GetOpt_String(goi, &cp, NULL);
542 pTap->chip = strdup(cp);
543
544 Jim_GetOpt_String(goi, &cp, NULL);
545 pTap->tapname = strdup(cp);
546
547 /* name + dot + name + null */
548 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
549 cp = malloc(x);
550 sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
551 pTap->dotted_name = cp;
552
553 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
554 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
555
556 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
557 * that the default. The "-irlen" and "-irmask" options are only
558 * needed to cope with nonstandard TAPs, or to specify more bits.
559 */
560 pTap->ir_capture_mask = 0x03;
561 pTap->ir_capture_value = 0x01;
562
563 while (goi->argc) {
564 e = Jim_GetOpt_Nvp(goi, opts, &n);
565 if (e != JIM_OK) {
566 Jim_GetOpt_NvpUnknown(goi, opts, 0);
567 free((void *)pTap->dotted_name);
568 free(pTap);
569 return e;
570 }
571 LOG_DEBUG("Processing option: %s", n->name);
572 switch (n->value) {
573 case NTAP_OPT_ENABLED:
574 pTap->disabled_after_reset = false;
575 break;
576 case NTAP_OPT_DISABLED:
577 pTap->disabled_after_reset = true;
578 break;
579 case NTAP_OPT_EXPECTED_ID:
580 e = jim_newtap_expected_id(n, goi, pTap);
581 if (JIM_OK != e) {
582 free((void *)pTap->dotted_name);
583 free(pTap);
584 return e;
585 }
586 break;
587 case NTAP_OPT_IRLEN:
588 case NTAP_OPT_IRMASK:
589 case NTAP_OPT_IRCAPTURE:
590 e = jim_newtap_ir_param(n, goi, pTap);
591 if (JIM_OK != e) {
592 free((void *)pTap->dotted_name);
593 free(pTap);
594 return e;
595 }
596 break;
597 case NTAP_OPT_VERSION:
598 pTap->ignore_version = true;
599 break;
600 } /* switch (n->value) */
601 } /* while (goi->argc) */
602
603 /* default is enabled-after-reset */
604 pTap->enabled = !pTap->disabled_after_reset;
605
606 /* Did all the required option bits get cleared? */
607 if (pTap->ir_length != 0) {
608 jtag_tap_init(pTap);
609 return JIM_OK;
610 }
611
612 Jim_SetResultFormatted(goi->interp,
613 "newtap: %s missing IR length",
614 pTap->dotted_name);
615 jtag_tap_free(pTap);
616 return JIM_ERR;
617 }
618
619 static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
620 {
621 struct jtag_tap_event_action *jteap;
622
623 for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next) {
624 if (jteap->event != e)
625 continue;
626
627 Jim_Nvp *nvp = Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e);
628 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
629 tap->dotted_name, e, nvp->name,
630 Jim_GetString(jteap->body, NULL));
631
632 if (Jim_EvalObj(jteap->interp, jteap->body) != JIM_OK) {
633 Jim_MakeErrorMessage(jteap->interp);
634 LOG_USER("%s", Jim_GetString(Jim_GetResult(jteap->interp), NULL));
635 continue;
636 }
637
638 switch (e) {
639 case JTAG_TAP_EVENT_ENABLE:
640 case JTAG_TAP_EVENT_DISABLE:
641 /* NOTE: we currently assume the handlers
642 * can't fail. Right here is where we should
643 * really be verifying the scan chains ...
644 */
645 tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
646 LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
647 tap->enabled ? "enabled" : "disabled");
648 break;
649 default:
650 break;
651 }
652 }
653 }
654
655 static int jim_jtag_arp_init(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
656 {
657 Jim_GetOptInfo goi;
658 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
659 if (goi.argc != 0) {
660 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
661 return JIM_ERR;
662 }
663 struct command_context *context = current_command_context(interp);
664 int e = jtag_init_inner(context);
665 if (e != ERROR_OK) {
666 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
667 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
668 Jim_FreeNewObj(goi.interp, eObj);
669 return JIM_ERR;
670 }
671 return JIM_OK;
672 }
673
674 static int jim_jtag_arp_init_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
675 {
676 int e = ERROR_OK;
677 Jim_GetOptInfo goi;
678 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
679 if (goi.argc != 0) {
680 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
681 return JIM_ERR;
682 }
683 struct command_context *context = current_command_context(interp);
684 if (transport_is_jtag())
685 e = jtag_init_reset(context);
686 else if (transport_is_swd())
687 e = swd_init_reset(context);
688
689 if (e != ERROR_OK) {
690 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
691 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
692 Jim_FreeNewObj(goi.interp, eObj);
693 return JIM_ERR;
694 }
695 return JIM_OK;
696 }
697
698 int jim_jtag_newtap(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
699 {
700 Jim_GetOptInfo goi;
701 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
702 return jim_newtap_cmd(&goi);
703 }
704
705 static bool jtag_tap_enable(struct jtag_tap *t)
706 {
707 if (t->enabled)
708 return false;
709 jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
710 if (!t->enabled)
711 return false;
712
713 /* FIXME add JTAG sanity checks, w/o TLR
714 * - scan chain length grew by one (this)
715 * - IDs and IR lengths are as expected
716 */
717 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
718 return true;
719 }
720 static bool jtag_tap_disable(struct jtag_tap *t)
721 {
722 if (!t->enabled)
723 return false;
724 jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
725 if (t->enabled)
726 return false;
727
728 /* FIXME add JTAG sanity checks, w/o TLR
729 * - scan chain length shrank by one (this)
730 * - IDs and IR lengths are as expected
731 */
732 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
733 return true;
734 }
735
736 int jim_jtag_tap_enabler(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
737 {
738 const char *cmd_name = Jim_GetString(argv[0], NULL);
739 Jim_GetOptInfo goi;
740 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
741 if (goi.argc != 1) {
742 Jim_SetResultFormatted(goi.interp, "usage: %s <name>", cmd_name);
743 return JIM_ERR;
744 }
745
746 struct jtag_tap *t;
747
748 t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
749 if (t == NULL)
750 return JIM_ERR;
751
752 if (strcasecmp(cmd_name, "tapisenabled") == 0) {
753 /* do nothing, just return the value */
754 } else if (strcasecmp(cmd_name, "tapenable") == 0) {
755 if (!jtag_tap_enable(t)) {
756 LOG_WARNING("failed to enable tap %s", t->dotted_name);
757 return JIM_ERR;
758 }
759 } else if (strcasecmp(cmd_name, "tapdisable") == 0) {
760 if (!jtag_tap_disable(t)) {
761 LOG_WARNING("failed to disable tap %s", t->dotted_name);
762 return JIM_ERR;
763 }
764 } else {
765 LOG_ERROR("command '%s' unknown", cmd_name);
766 return JIM_ERR;
767 }
768 bool e = t->enabled;
769 Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
770 return JIM_OK;
771 }
772
773 int jim_jtag_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
774 {
775 const char *cmd_name = Jim_GetString(argv[0], NULL);
776 Jim_GetOptInfo goi;
777 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
778 goi.isconfigure = !strcmp(cmd_name, "configure");
779 if (goi.argc < 2 + goi.isconfigure) {
780 Jim_WrongNumArgs(goi.interp, 0, NULL,
781 "<tap_name> <attribute> ...");
782 return JIM_ERR;
783 }
784
785 struct jtag_tap *t;
786
787 Jim_Obj *o;
788 Jim_GetOpt_Obj(&goi, &o);
789 t = jtag_tap_by_jim_obj(goi.interp, o);
790 if (t == NULL)
791 return JIM_ERR;
792
793 return jtag_tap_configure_cmd(&goi, t);
794 }
795
796 static int jim_jtag_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
797 {
798 Jim_GetOptInfo goi;
799 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
800 if (goi.argc != 0) {
801 Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
802 return JIM_ERR;
803 }
804 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
805 struct jtag_tap *tap;
806
807 for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
808 Jim_ListAppendElement(goi.interp,
809 Jim_GetResult(goi.interp),
810 Jim_NewStringObj(goi.interp,
811 tap->dotted_name, -1));
812 }
813 return JIM_OK;
814 }
815
816 COMMAND_HANDLER(handle_jtag_init_command)
817 {
818 if (CMD_ARGC != 0)
819 return ERROR_COMMAND_SYNTAX_ERROR;
820
821 static bool jtag_initialized;
822 if (jtag_initialized) {
823 LOG_INFO("'jtag init' has already been called");
824 return ERROR_OK;
825 }
826 jtag_initialized = true;
827
828 LOG_DEBUG("Initializing jtag devices...");
829 return jtag_init(CMD_CTX);
830 }
831
832 static const struct command_registration jtag_subcommand_handlers[] = {
833 {
834 .name = "init",
835 .mode = COMMAND_ANY,
836 .handler = handle_jtag_init_command,
837 .help = "initialize jtag scan chain",
838 .usage = ""
839 },
840 {
841 .name = "arp_init",
842 .mode = COMMAND_ANY,
843 .jim_handler = jim_jtag_arp_init,
844 .help = "Validates JTAG scan chain against the list of "
845 "declared TAPs using just the four standard JTAG "
846 "signals.",
847 },
848 {
849 .name = "arp_init-reset",
850 .mode = COMMAND_ANY,
851 .jim_handler = jim_jtag_arp_init_reset,
852 .help = "Uses TRST and SRST to try resetting everything on "
853 "the JTAG scan chain, then performs 'jtag arp_init'."
854 },
855 {
856 .name = "newtap",
857 .mode = COMMAND_CONFIG,
858 .jim_handler = jim_jtag_newtap,
859 .help = "Create a new TAP instance named basename.tap_type, "
860 "and appends it to the scan chain.",
861 .usage = "basename tap_type '-irlen' count "
862 "['-enable'|'-disable'] "
863 "['-expected_id' number] "
864 "['-ignore-version'] "
865 "['-ircapture' number] "
866 "['-mask' number] ",
867 },
868 {
869 .name = "tapisenabled",
870 .mode = COMMAND_EXEC,
871 .jim_handler = jim_jtag_tap_enabler,
872 .help = "Returns a Tcl boolean (0/1) indicating whether "
873 "the TAP is enabled (1) or not (0).",
874 .usage = "tap_name",
875 },
876 {
877 .name = "tapenable",
878 .mode = COMMAND_EXEC,
879 .jim_handler = jim_jtag_tap_enabler,
880 .help = "Try to enable the specified TAP using the "
881 "'tap-enable' TAP event.",
882 .usage = "tap_name",
883 },
884 {
885 .name = "tapdisable",
886 .mode = COMMAND_EXEC,
887 .jim_handler = jim_jtag_tap_enabler,
888 .help = "Try to disable the specified TAP using the "
889 "'tap-disable' TAP event.",
890 .usage = "tap_name",
891 },
892 {
893 .name = "configure",
894 .mode = COMMAND_EXEC,
895 .jim_handler = jim_jtag_configure,
896 .help = "Provide a Tcl handler for the specified "
897 "TAP event.",
898 .usage = "tap_name '-event' event_name handler",
899 },
900 {
901 .name = "cget",
902 .mode = COMMAND_EXEC,
903 .jim_handler = jim_jtag_configure,
904 .help = "Return any Tcl handler for the specified "
905 "TAP event.",
906 .usage = "tap_name '-event' event_name",
907 },
908 {
909 .name = "names",
910 .mode = COMMAND_ANY,
911 .jim_handler = jim_jtag_names,
912 .help = "Returns list of all JTAG tap names.",
913 },
914 {
915 .chain = jtag_command_handlers_to_move,
916 },
917 COMMAND_REGISTRATION_DONE
918 };
919
920 void jtag_notify_event(enum jtag_event event)
921 {
922 struct jtag_tap *tap;
923
924 for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
925 jtag_tap_handle_event(tap, event);
926 }
927
928
929 COMMAND_HANDLER(handle_scan_chain_command)
930 {
931 struct jtag_tap *tap;
932 char expected_id[12];
933
934 tap = jtag_all_taps();
935 command_print(CMD_CTX,
936 " TapName Enabled IdCode Expected IrLen IrCap IrMask");
937 command_print(CMD_CTX,
938 "-- ------------------- -------- ---------- ---------- ----- ----- ------");
939
940 while (tap) {
941 uint32_t expected, expected_mask, ii;
942
943 snprintf(expected_id, sizeof expected_id, "0x%08x",
944 (unsigned)((tap->expected_ids_cnt > 0)
945 ? tap->expected_ids[0]
946 : 0));
947 if (tap->ignore_version)
948 expected_id[2] = '*';
949
950 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
951 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
952
953 command_print(CMD_CTX,
954 "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
955 tap->abs_chain_position,
956 tap->dotted_name,
957 tap->enabled ? 'Y' : 'n',
958 (unsigned int)(tap->idcode),
959 expected_id,
960 (unsigned int)(tap->ir_length),
961 (unsigned int)(expected),
962 (unsigned int)(expected_mask));
963
964 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
965 snprintf(expected_id, sizeof expected_id, "0x%08x",
966 (unsigned) tap->expected_ids[ii]);
967 if (tap->ignore_version)
968 expected_id[2] = '*';
969
970 command_print(CMD_CTX,
971 " %s",
972 expected_id);
973 }
974
975 tap = tap->next_tap;
976 }
977
978 return ERROR_OK;
979 }
980
981 COMMAND_HANDLER(handle_jtag_ntrst_delay_command)
982 {
983 if (CMD_ARGC > 1)
984 return ERROR_COMMAND_SYNTAX_ERROR;
985 if (CMD_ARGC == 1) {
986 unsigned delay;
987 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
988
989 jtag_set_ntrst_delay(delay);
990 }
991 command_print(CMD_CTX, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
992 return ERROR_OK;
993 }
994
995 COMMAND_HANDLER(handle_jtag_ntrst_assert_width_command)
996 {
997 if (CMD_ARGC > 1)
998 return ERROR_COMMAND_SYNTAX_ERROR;
999 if (CMD_ARGC == 1) {
1000 unsigned delay;
1001 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
1002
1003 jtag_set_ntrst_assert_width(delay);
1004 }
1005 command_print(CMD_CTX, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1006 return ERROR_OK;
1007 }
1008
1009 COMMAND_HANDLER(handle_jtag_rclk_command)
1010 {
1011 if (CMD_ARGC > 1)
1012 return ERROR_COMMAND_SYNTAX_ERROR;
1013
1014 int retval = ERROR_OK;
1015 if (CMD_ARGC == 1) {
1016 unsigned khz = 0;
1017 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
1018
1019 retval = jtag_config_rclk(khz);
1020 if (ERROR_OK != retval)
1021 return retval;
1022 }
1023
1024 int cur_khz = jtag_get_speed_khz();
1025 retval = jtag_get_speed_readable(&cur_khz);
1026 if (ERROR_OK != retval)
1027 return retval;
1028
1029 if (cur_khz)
1030 command_print(CMD_CTX, "RCLK not supported - fallback to %d kHz", cur_khz);
1031 else
1032 command_print(CMD_CTX, "RCLK - adaptive");
1033
1034 return retval;
1035 }
1036
1037 COMMAND_HANDLER(handle_jtag_reset_command)
1038 {
1039 if (CMD_ARGC != 2)
1040 return ERROR_COMMAND_SYNTAX_ERROR;
1041
1042 int trst = -1;
1043 if (CMD_ARGV[0][0] == '1')
1044 trst = 1;
1045 else if (CMD_ARGV[0][0] == '0')
1046 trst = 0;
1047 else
1048 return ERROR_COMMAND_SYNTAX_ERROR;
1049
1050 int srst = -1;
1051 if (CMD_ARGV[1][0] == '1')
1052 srst = 1;
1053 else if (CMD_ARGV[1][0] == '0')
1054 srst = 0;
1055 else
1056 return ERROR_COMMAND_SYNTAX_ERROR;
1057
1058 if (adapter_init(CMD_CTX) != ERROR_OK)
1059 return ERROR_JTAG_INIT_FAILED;
1060
1061 jtag_add_reset(trst, srst);
1062 return jtag_execute_queue();
1063 }
1064
1065 COMMAND_HANDLER(handle_runtest_command)
1066 {
1067 if (CMD_ARGC != 1)
1068 return ERROR_COMMAND_SYNTAX_ERROR;
1069
1070 unsigned num_clocks;
1071 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num_clocks);
1072
1073 jtag_add_runtest(num_clocks, TAP_IDLE);
1074 return jtag_execute_queue();
1075 }
1076
1077 /*
1078 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1079 * should be stable ... and *NOT* a shift state, otherwise free-running
1080 * jtag clocks could change the values latched by the update state.
1081 * Not surprisingly, this is the same constraint as SVF; the "irscan"
1082 * and "drscan" commands are a write-only subset of what SVF provides.
1083 */
1084
1085 COMMAND_HANDLER(handle_irscan_command)
1086 {
1087 int i;
1088 struct scan_field *fields;
1089 struct jtag_tap *tap = NULL;
1090 tap_state_t endstate;
1091
1092 if ((CMD_ARGC < 2) || (CMD_ARGC % 2))
1093 return ERROR_COMMAND_SYNTAX_ERROR;
1094
1095 /* optional "-endstate" "statename" at the end of the arguments,
1096 * so that e.g. IRPAUSE can let us load the data register before
1097 * entering RUN/IDLE to execute the instruction we load here.
1098 */
1099 endstate = TAP_IDLE;
1100
1101 if (CMD_ARGC >= 4) {
1102 /* have at least one pair of numbers.
1103 * is last pair the magic text? */
1104 if (strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2]) == 0) {
1105 endstate = tap_state_by_name(CMD_ARGV[CMD_ARGC - 1]);
1106 if (endstate == TAP_INVALID)
1107 return ERROR_COMMAND_SYNTAX_ERROR;
1108 if (!scan_is_safe(endstate))
1109 LOG_WARNING("unstable irscan endstate \"%s\"",
1110 CMD_ARGV[CMD_ARGC - 1]);
1111 CMD_ARGC -= 2;
1112 }
1113 }
1114
1115 int num_fields = CMD_ARGC / 2;
1116 if (num_fields > 1) {
1117 /* we really should be looking at plain_ir_scan if we want
1118 * anything more fancy.
1119 */
1120 LOG_ERROR("Specify a single value for tap");
1121 return ERROR_COMMAND_SYNTAX_ERROR;
1122 }
1123
1124 size_t fields_len = sizeof(struct scan_field) * num_fields;
1125 fields = malloc(fields_len);
1126 memset(fields, 0, fields_len);
1127
1128 int retval;
1129 for (i = 0; i < num_fields; i++) {
1130 tap = jtag_tap_by_string(CMD_ARGV[i*2]);
1131 if (tap == NULL) {
1132 int j;
1133 for (j = 0; j < i; j++)
1134 free((void *)fields[j].out_value);
1135 free(fields);
1136 command_print(CMD_CTX, "Tap: %s unknown", CMD_ARGV[i*2]);
1137
1138 return ERROR_FAIL;
1139 }
1140 int field_size = tap->ir_length;
1141 fields[i].num_bits = field_size;
1142 fields[i].out_value = malloc(DIV_ROUND_UP(field_size, 8));
1143
1144 uint32_t value;
1145 retval = parse_u32(CMD_ARGV[i * 2 + 1], &value);
1146 if (ERROR_OK != retval)
1147 goto error_return;
1148 void *v = (void *)fields[i].out_value;
1149 buf_set_u32(v, 0, field_size, value);
1150 fields[i].in_value = NULL;
1151 }
1152
1153 /* did we have an endstate? */
1154 jtag_add_ir_scan(tap, fields, endstate);
1155
1156 retval = jtag_execute_queue();
1157
1158 error_return:
1159 for (i = 0; i < num_fields; i++) {
1160 if (NULL != fields[i].out_value)
1161 free((void *)fields[i].out_value);
1162 }
1163
1164 free(fields);
1165
1166 return retval;
1167 }
1168
1169 COMMAND_HANDLER(handle_verify_ircapture_command)
1170 {
1171 if (CMD_ARGC > 1)
1172 return ERROR_COMMAND_SYNTAX_ERROR;
1173
1174 if (CMD_ARGC == 1) {
1175 bool enable;
1176 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1177 jtag_set_verify_capture_ir(enable);
1178 }
1179
1180 const char *status = jtag_will_verify_capture_ir() ? "enabled" : "disabled";
1181 command_print(CMD_CTX, "verify Capture-IR is %s", status);
1182
1183 return ERROR_OK;
1184 }
1185
1186 COMMAND_HANDLER(handle_verify_jtag_command)
1187 {
1188 if (CMD_ARGC > 1)
1189 return ERROR_COMMAND_SYNTAX_ERROR;
1190
1191 if (CMD_ARGC == 1) {
1192 bool enable;
1193 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1194 jtag_set_verify(enable);
1195 }
1196
1197 const char *status = jtag_will_verify() ? "enabled" : "disabled";
1198 command_print(CMD_CTX, "verify jtag capture is %s", status);
1199
1200 return ERROR_OK;
1201 }
1202
1203 COMMAND_HANDLER(handle_tms_sequence_command)
1204 {
1205 if (CMD_ARGC > 1)
1206 return ERROR_COMMAND_SYNTAX_ERROR;
1207
1208 if (CMD_ARGC == 1) {
1209 bool use_new_table;
1210 if (strcmp(CMD_ARGV[0], "short") == 0)
1211 use_new_table = true;
1212 else if (strcmp(CMD_ARGV[0], "long") == 0)
1213 use_new_table = false;
1214 else
1215 return ERROR_COMMAND_SYNTAX_ERROR;
1216
1217 tap_use_new_tms_table(use_new_table);
1218 }
1219
1220 command_print(CMD_CTX, "tms sequence is %s",
1221 tap_uses_new_tms_table() ? "short" : "long");
1222
1223 return ERROR_OK;
1224 }
1225
1226 COMMAND_HANDLER(handle_jtag_flush_queue_sleep)
1227 {
1228 if (CMD_ARGC != 1)
1229 return ERROR_COMMAND_SYNTAX_ERROR;
1230
1231 int sleep_ms;
1232 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], sleep_ms);
1233
1234 jtag_set_flush_queue_sleep(sleep_ms);
1235
1236 return ERROR_OK;
1237 }
1238
1239 COMMAND_HANDLER(handle_wait_srst_deassert)
1240 {
1241 if (CMD_ARGC != 1)
1242 return ERROR_COMMAND_SYNTAX_ERROR;
1243
1244 int timeout_ms;
1245 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], timeout_ms);
1246 if ((timeout_ms <= 0) || (timeout_ms > 100000)) {
1247 LOG_ERROR("Timeout must be an integer between 0 and 100000");
1248 return ERROR_FAIL;
1249 }
1250
1251 LOG_USER("Waiting for srst assert + deassert for at most %dms", timeout_ms);
1252 int asserted_yet;
1253 long long then = timeval_ms();
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 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1263 if ((timeval_ms() - then) > timeout_ms) {
1264 LOG_ERROR("Timed out");
1265 return ERROR_FAIL;
1266 }
1267 if (!asserted_yet)
1268 break;
1269 }
1270
1271 return ERROR_OK;
1272 }
1273
1274 static const struct command_registration jtag_command_handlers[] = {
1275
1276 {
1277 .name = "jtag_flush_queue_sleep",
1278 .handler = handle_jtag_flush_queue_sleep,
1279 .mode = COMMAND_ANY,
1280 .help = "For debug purposes(simulate long delays of interface) "
1281 "to test performance or change in behavior. Default 0ms.",
1282 .usage = "[sleep in ms]",
1283 },
1284 {
1285 .name = "jtag_rclk",
1286 .handler = handle_jtag_rclk_command,
1287 .mode = COMMAND_ANY,
1288 .help = "With an argument, change to to use adaptive clocking "
1289 "if possible; else to use the fallback speed. "
1290 "With or without argument, display current setting.",
1291 .usage = "[fallback_speed_khz]",
1292 },
1293 {
1294 .name = "jtag_ntrst_delay",
1295 .handler = handle_jtag_ntrst_delay_command,
1296 .mode = COMMAND_ANY,
1297 .help = "delay after deasserting trst in ms",
1298 .usage = "[milliseconds]",
1299 },
1300 {
1301 .name = "jtag_ntrst_assert_width",
1302 .handler = handle_jtag_ntrst_assert_width_command,
1303 .mode = COMMAND_ANY,
1304 .help = "delay after asserting trst in ms",
1305 .usage = "[milliseconds]",
1306 },
1307 {
1308 .name = "scan_chain",
1309 .handler = handle_scan_chain_command,
1310 .mode = COMMAND_ANY,
1311 .help = "print current scan chain configuration",
1312 .usage = ""
1313 },
1314 {
1315 .name = "jtag_reset",
1316 .handler = handle_jtag_reset_command,
1317 .mode = COMMAND_EXEC,
1318 .help = "Set reset line values. Value '1' is active, "
1319 "value '0' is inactive.",
1320 .usage = "trst_active srst_active",
1321 },
1322 {
1323 .name = "runtest",
1324 .handler = handle_runtest_command,
1325 .mode = COMMAND_EXEC,
1326 .help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
1327 .usage = "num_cycles"
1328 },
1329 {
1330 .name = "irscan",
1331 .handler = handle_irscan_command,
1332 .mode = COMMAND_EXEC,
1333 .help = "Execute Instruction Register (DR) scan. The "
1334 "specified opcodes are put into each TAP's IR, "
1335 "and other TAPs are put in BYPASS.",
1336 .usage = "[tap_name instruction]* ['-endstate' state_name]",
1337 },
1338 {
1339 .name = "verify_ircapture",
1340 .handler = handle_verify_ircapture_command,
1341 .mode = COMMAND_ANY,
1342 .help = "Display or assign flag controlling whether to "
1343 "verify values captured during Capture-IR.",
1344 .usage = "['enable'|'disable']",
1345 },
1346 {
1347 .name = "verify_jtag",
1348 .handler = handle_verify_jtag_command,
1349 .mode = COMMAND_ANY,
1350 .help = "Display or assign flag controlling whether to "
1351 "verify values captured during IR and DR scans.",
1352 .usage = "['enable'|'disable']",
1353 },
1354 {
1355 .name = "tms_sequence",
1356 .handler = handle_tms_sequence_command,
1357 .mode = COMMAND_ANY,
1358 .help = "Display or change what style TMS sequences to use "
1359 "for JTAG state transitions: short (default) or "
1360 "long. Only for working around JTAG bugs.",
1361 /* Specifically for working around DRIVER bugs... */
1362 .usage = "['short'|'long']",
1363 },
1364 {
1365 .name = "wait_srst_deassert",
1366 .handler = handle_wait_srst_deassert,
1367 .mode = COMMAND_ANY,
1368 .help = "Wait for an SRST deassert. "
1369 "Useful for cases where you need something to happen within ms "
1370 "of an srst deassert. Timeout in ms ",
1371 .usage = "ms",
1372 },
1373 {
1374 .name = "jtag",
1375 .mode = COMMAND_ANY,
1376 .help = "perform jtag tap actions",
1377 .usage = "",
1378
1379 .chain = jtag_subcommand_handlers,
1380 },
1381 {
1382 .chain = jtag_command_handlers_to_move,
1383 },
1384 COMMAND_REGISTRATION_DONE
1385 };
1386
1387 int jtag_register_commands(struct command_context *cmd_ctx)
1388 {
1389 return register_commands(cmd_ctx, NULL, jtag_command_handlers);
1390 }
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