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Preliminary support for Freescale i.MX53
[openocd/ellerodev.git] / src / jtag / tcl.c
blob267802edc86f389211979bab0b9148162f773c3a
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 #ifdef HAVE_CONFIG_H
31 #include "config.h"
32 #endif
33
34 #include "jtag.h"
35 #include "minidriver.h"
36 #include "interface.h"
37 #include "interfaces.h"
38
39 #ifdef HAVE_STRINGS_H
40 #include <strings.h>
41 #endif
42
43 #include <helper/time_support.h>
44
45 /**
46 * @file
47 * Holds support for accessing JTAG-specific mechanisms from TCl scripts.
48 */
49
50 static const Jim_Nvp nvp_jtag_tap_event[] = {
51 { .value = JTAG_TRST_ASSERTED, .name = "post-reset" },
52 { .value = JTAG_TAP_EVENT_SETUP, .name = "setup" },
53 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
54 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
55
56 { .name = NULL, .value = -1 }
57 };
58
59 extern struct jtag_interface *jtag_interface;
60
61 struct jtag_tap *jtag_tap_by_jim_obj(Jim_Interp *interp, Jim_Obj *o)
62 {
63 const char *cp = Jim_GetString(o, NULL);
64 struct jtag_tap *t = cp ? jtag_tap_by_string(cp) : NULL;
65 if (NULL == cp)
66 cp = "(unknown)";
67 if (NULL == t)
68 Jim_SetResultFormatted(interp, "Tap '%s' could not be found", cp);
69 return t;
70 }
71
72 static bool scan_is_safe(tap_state_t state)
73 {
74 switch (state)
75 {
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 {
107 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
108 return JIM_ERR;
109 }
110
111 endstate = TAP_IDLE;
112
113 script_debug(interp, "drscan", argc, args);
114
115 /* validate arguments as numbers */
116 e = JIM_OK;
117 for (i = 2; i < argc; i += 2)
118 {
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
128 /* Not valid.. are we at the end? */
129 if (((i + 2) != argc)) {
130 /* nope, then error */
131 return e;
132 }
133
134 /* it could be: "-endstate FOO"
135 * e.g. DRPAUSE so we can issue more instructions
136 * before entering RUN/IDLE and executing them.
137 */
138
139 /* get arg as a string. */
140 cp = Jim_GetString(args[i], NULL);
141 /* is it the magic? */
142 if (0 == strcmp("-endstate", cp)) {
143 /* is the statename valid? */
144 cp = Jim_GetString(args[i + 1], NULL);
145
146 /* see if it is a valid state name */
147 endstate = tap_state_by_name(cp);
148 if (endstate < 0) {
149 /* update the error message */
150 Jim_SetResultFormatted(interp,"endstate: %s invalid", cp);
151 } else {
152 if (!scan_is_safe(endstate))
153 LOG_WARNING("drscan with unsafe "
154 "endstate \"%s\"", cp);
155
156 /* valid - so clear the error */
157 e = JIM_OK;
158 /* and remove the last 2 args */
159 argc -= 2;
160 }
161 }
162
163 /* Still an error? */
164 if (e != JIM_OK) {
165 return e; /* too bad */
166 }
167 } /* validate args */
168
169 tap = jtag_tap_by_jim_obj(interp, args[1]);
170 if (tap == NULL) {
171 return JIM_ERR;
172 }
173
174 num_fields = (argc-2)/2;
175 fields = malloc(sizeof(struct scan_field) * num_fields);
176 for (i = 2; i < argc; i += 2)
177 {
178 long bits;
179 int len;
180 const char *str;
181
182 Jim_GetLong(interp, args[i], &bits);
183 str = Jim_GetString(args[i + 1], &len);
184
185 fields[field_count].num_bits = bits;
186 void * t = malloc(DIV_ROUND_UP(bits, 8));
187 fields[field_count].out_value = t;
188 str_to_buf(str, len, t, bits, 0);
189 fields[field_count].in_value = t;
190 field_count++;
191 }
192
193 jtag_add_dr_scan(tap, num_fields, fields, endstate);
194
195 retval = jtag_execute_queue();
196 if (retval != ERROR_OK)
197 {
198 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
199 return JIM_ERR;
200 }
201
202 field_count = 0;
203 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
204 for (i = 2; i < argc; i += 2)
205 {
206 long bits;
207 char *str;
208
209 Jim_GetLong(interp, args[i], &bits);
210 str = buf_to_str(fields[field_count].in_value, bits, 16);
211 free((void *)fields[field_count].out_value);
212
213 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
214 free(str);
215 field_count++;
216 }
217
218 Jim_SetResult(interp, list);
219
220 free(fields);
221
222 return JIM_OK;
223 }
224
225
226 static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
227 {
228 tap_state_t states[8];
229
230 if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(states) + 1)))
231 {
232 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
233 return JIM_ERR;
234 }
235
236 script_debug(interp, "pathmove", argc, args);
237
238 int i;
239 for (i = 0; i < argc-1; i++)
240 {
241 const char *cp;
242 cp = Jim_GetString(args[i + 1], NULL);
243 states[i] = tap_state_by_name(cp);
244 if (states[i] < 0)
245 {
246 /* update the error message */
247 Jim_SetResultFormatted(interp,"endstate: %s invalid", cp);
248 return JIM_ERR;
249 }
250 }
251
252 if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue()!= ERROR_OK))
253 {
254 Jim_SetResultString(interp, "pathmove: jtag execute failed",-1);
255 return JIM_ERR;
256 }
257
258 jtag_add_pathmove(argc-2, states + 1);
259
260 if (jtag_execute_queue()!= ERROR_OK)
261 {
262 Jim_SetResultString(interp, "pathmove: failed",-1);
263 return JIM_ERR;
264 }
265
266 return JIM_OK;
267 }
268
269
270 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
271 {
272 script_debug(interp, "flush_count", argc, args);
273
274 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
275
276 return JIM_OK;
277 }
278
279 /* REVISIT Just what about these should "move" ... ?
280 * These registrations, into the main JTAG table?
281 *
282 * There's a minor compatibility issue, these all show up twice;
283 * that's not desirable:
284 * - jtag drscan ... NOT DOCUMENTED!
285 * - drscan ...
286 *
287 * The "irscan" command (for example) doesn't show twice.
288 */
289 static const struct command_registration jtag_command_handlers_to_move[] = {
290 {
291 .name = "drscan",
292 .mode = COMMAND_EXEC,
293 .jim_handler = Jim_Command_drscan,
294 .help = "Execute Data Register (DR) scan for one TAP. "
295 "Other TAPs must be in BYPASS mode.",
296 .usage = "tap_name [num_bits value]* ['-endstate' state_name]",
297 },
298 {
299 .name = "flush_count",
300 .mode = COMMAND_EXEC,
301 .jim_handler = Jim_Command_flush_count,
302 .help = "Returns the number of times the JTAG queue "
303 "has been flushed.",
304 },
305 {
306 .name = "pathmove",
307 .mode = COMMAND_EXEC,
308 .jim_handler = Jim_Command_pathmove,
309 .usage = "start_state state1 [state2 [state3 ...]]",
310 .help = "Move JTAG state machine from current state "
311 "(start_state) to state1, then state2, state3, etc.",
312 },
313 COMMAND_REGISTRATION_DONE
314 };
315
316
317 enum jtag_tap_cfg_param {
318 JCFG_EVENT
319 };
320
321 static Jim_Nvp nvp_config_opts[] = {
322 { .name = "-event", .value = JCFG_EVENT },
323
324 { .name = NULL, .value = -1 }
325 };
326
327 static int jtag_tap_configure_event(Jim_GetOptInfo *goi, struct jtag_tap * tap)
328 {
329 if (goi->argc == 0)
330 {
331 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name> ...");
332 return JIM_ERR;
333 }
334
335 Jim_Nvp *n;
336 int e = Jim_GetOpt_Nvp(goi, nvp_jtag_tap_event, &n);
337 if (e != JIM_OK)
338 {
339 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
340 return e;
341 }
342
343 if (goi->isconfigure) {
344 if (goi->argc != 1) {
345 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name> <event-body>");
346 return JIM_ERR;
347 }
348 } else {
349 if (goi->argc != 0) {
350 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name>");
351 return JIM_ERR;
352 }
353 }
354
355 struct jtag_tap_event_action *jteap = tap->event_action;
356 /* replace existing event body */
357 bool found = false;
358 while (jteap)
359 {
360 if (jteap->event == (enum jtag_event)n->value)
361 {
362 found = true;
363 break;
364 }
365 jteap = jteap->next;
366 }
367
368 Jim_SetEmptyResult(goi->interp);
369
370 if (goi->isconfigure)
371 {
372 if (!found)
373 jteap = calloc(1, sizeof(*jteap));
374 else if (NULL != jteap->body)
375 Jim_DecrRefCount(goi->interp, jteap->body);
376
377 jteap->interp = goi->interp;
378 jteap->event = n->value;
379
380 Jim_Obj *o;
381 Jim_GetOpt_Obj(goi, &o);
382 jteap->body = Jim_DuplicateObj(goi->interp, o);
383 Jim_IncrRefCount(jteap->body);
384
385 if (!found)
386 {
387 /* add to head of event list */
388 jteap->next = tap->event_action;
389 tap->event_action = jteap;
390 }
391 }
392 else if (found)
393 {
394 jteap->interp = goi->interp;
395 Jim_SetResult(goi->interp,
396 Jim_DuplicateObj(goi->interp, jteap->body));
397 }
398 return JIM_OK;
399 }
400
401 static int jtag_tap_configure_cmd(Jim_GetOptInfo *goi, struct jtag_tap * tap)
402 {
403 /* parse config or cget options */
404 while (goi->argc > 0)
405 {
406 Jim_SetEmptyResult (goi->interp);
407
408 Jim_Nvp *n;
409 int e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
410 if (e != JIM_OK)
411 {
412 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
413 return e;
414 }
415
416 switch (n->value)
417 {
418 case JCFG_EVENT:
419 e = jtag_tap_configure_event(goi, tap);
420 if (e != JIM_OK)
421 return e;
422 break;
423 default:
424 Jim_SetResultFormatted(goi->interp, "unknown event: %s", n->name);
425 return JIM_ERR;
426 }
427 }
428
429 return JIM_OK;
430 }
431
432 static int is_bad_irval(int ir_length, jim_wide w)
433 {
434 jim_wide v = 1;
435
436 v <<= ir_length;
437 v -= 1;
438 v = ~v;
439 return (w & v) != 0;
440 }
441
442 static int jim_newtap_expected_id(Jim_Nvp *n, Jim_GetOptInfo *goi,
443 struct jtag_tap *pTap)
444 {
445 jim_wide w;
446 int e = Jim_GetOpt_Wide(goi, &w);
447 if (e != JIM_OK) {
448 Jim_SetResultFormatted(goi->interp, "option: %s bad parameter", n->name);
449 return e;
450 }
451
452 unsigned expected_len = sizeof(uint32_t) * pTap->expected_ids_cnt;
453 uint32_t *new_expected_ids = malloc(expected_len + sizeof(uint32_t));
454 if (new_expected_ids == NULL)
455 {
456 Jim_SetResultFormatted(goi->interp, "no memory");
457 return JIM_ERR;
458 }
459
460 memcpy(new_expected_ids, pTap->expected_ids, expected_len);
461
462 new_expected_ids[pTap->expected_ids_cnt] = w;
463
464 free(pTap->expected_ids);
465 pTap->expected_ids = new_expected_ids;
466 pTap->expected_ids_cnt++;
467
468 return JIM_OK;
469 }
470
471 #define NTAP_OPT_IRLEN 0
472 #define NTAP_OPT_IRMASK 1
473 #define NTAP_OPT_IRCAPTURE 2
474 #define NTAP_OPT_ENABLED 3
475 #define NTAP_OPT_DISABLED 4
476 #define NTAP_OPT_EXPECTED_ID 5
477 #define NTAP_OPT_VERSION 6
478
479 static int jim_newtap_ir_param(Jim_Nvp *n, Jim_GetOptInfo *goi,
480 struct jtag_tap *pTap)
481 {
482 jim_wide w;
483 int e = Jim_GetOpt_Wide(goi, &w);
484 if (e != JIM_OK)
485 {
486 Jim_SetResultFormatted(goi->interp,
487 "option: %s bad parameter", n->name);
488 free((void *)pTap->dotted_name);
489 return e;
490 }
491 switch (n->value) {
492 case NTAP_OPT_IRLEN:
493 if (w > (jim_wide) (8 * sizeof(pTap->ir_capture_value)))
494 {
495 LOG_WARNING("%s: huge IR length %d",
496 pTap->dotted_name, (int) w);
497 }
498 pTap->ir_length = w;
499 break;
500 case NTAP_OPT_IRMASK:
501 if (is_bad_irval(pTap->ir_length, w))
502 {
503 LOG_ERROR("%s: IR mask %x too big",
504 pTap->dotted_name,
505 (int) w);
506 return JIM_ERR;
507 }
508 if ((w & 3) != 3)
509 LOG_WARNING("%s: nonstandard IR mask", pTap->dotted_name);
510 pTap->ir_capture_mask = w;
511 break;
512 case NTAP_OPT_IRCAPTURE:
513 if (is_bad_irval(pTap->ir_length, w))
514 {
515 LOG_ERROR("%s: IR capture %x too big",
516 pTap->dotted_name, (int) w);
517 return JIM_ERR;
518 }
519 if ((w & 3) != 1)
520 LOG_WARNING("%s: nonstandard IR value",
521 pTap->dotted_name);
522 pTap->ir_capture_value = w;
523 break;
524 default:
525 return JIM_ERR;
526 }
527 return JIM_OK;
528 }
529
530 static int jim_newtap_cmd(Jim_GetOptInfo *goi)
531 {
532 struct jtag_tap *pTap;
533 int x;
534 int e;
535 Jim_Nvp *n;
536 char *cp;
537 const Jim_Nvp opts[] = {
538 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
539 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
540 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
541 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
542 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
543 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
544 { .name = "-ignore-version" , .value = NTAP_OPT_VERSION },
545 { .name = NULL , .value = -1 },
546 };
547
548 pTap = calloc(1, sizeof(struct jtag_tap));
549 if (!pTap) {
550 Jim_SetResultFormatted(goi->interp, "no memory");
551 return JIM_ERR;
552 }
553
554 /*
555 * we expect CHIP + TAP + OPTIONS
556 * */
557 if (goi->argc < 3) {
558 Jim_SetResultFormatted(goi->interp, "Missing CHIP TAP OPTIONS ....");
559 free(pTap);
560 return JIM_ERR;
561 }
562 Jim_GetOpt_String(goi, &cp, NULL);
563 pTap->chip = strdup(cp);
564
565 Jim_GetOpt_String(goi, &cp, NULL);
566 pTap->tapname = strdup(cp);
567
568 /* name + dot + name + null */
569 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
570 cp = malloc(x);
571 sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
572 pTap->dotted_name = cp;
573
574 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
575 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
576
577 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
578 * that the default. The "-irlen" and "-irmask" options are only
579 * needed to cope with nonstandard TAPs, or to specify more bits.
580 */
581 pTap->ir_capture_mask = 0x03;
582 pTap->ir_capture_value = 0x01;
583
584 while (goi->argc) {
585 e = Jim_GetOpt_Nvp(goi, opts, &n);
586 if (e != JIM_OK) {
587 Jim_GetOpt_NvpUnknown(goi, opts, 0);
588 free((void *)pTap->dotted_name);
589 free(pTap);
590 return e;
591 }
592 LOG_DEBUG("Processing option: %s", n->name);
593 switch (n->value) {
594 case NTAP_OPT_ENABLED:
595 pTap->disabled_after_reset = false;
596 break;
597 case NTAP_OPT_DISABLED:
598 pTap->disabled_after_reset = true;
599 break;
600 case NTAP_OPT_EXPECTED_ID:
601 e = jim_newtap_expected_id(n, goi, pTap);
602 if (JIM_OK != e)
603 {
604 free((void *)pTap->dotted_name);
605 free(pTap);
606 return e;
607 }
608 break;
609 case NTAP_OPT_IRLEN:
610 case NTAP_OPT_IRMASK:
611 case NTAP_OPT_IRCAPTURE:
612 e = jim_newtap_ir_param(n, goi, pTap);
613 if (JIM_OK != e)
614 {
615 free((void *)pTap->dotted_name);
616 free(pTap);
617 return e;
618 }
619 break;
620 case NTAP_OPT_VERSION:
621 pTap->ignore_version = true;
622 break;
623 } /* switch (n->value) */
624 } /* while (goi->argc) */
625
626 /* default is enabled-after-reset */
627 pTap->enabled = !pTap->disabled_after_reset;
628
629 /* Did all the required option bits get cleared? */
630 if (pTap->ir_length != 0)
631 {
632 jtag_tap_init(pTap);
633 return JIM_OK;
634 }
635
636 Jim_SetResultFormatted(goi->interp,
637 "newtap: %s missing IR length",
638 pTap->dotted_name);
639 jtag_tap_free(pTap);
640 return JIM_ERR;
641 }
642
643 static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
644 {
645 struct jtag_tap_event_action * jteap;
646
647 for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next)
648 {
649 if (jteap->event != e)
650 continue;
651
652 Jim_Nvp *nvp = Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e);
653 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
654 tap->dotted_name, e, nvp->name,
655 Jim_GetString(jteap->body, NULL));
656
657 if (Jim_EvalObj(jteap->interp, jteap->body) != JIM_OK)
658 {
659 Jim_MakeErrorMessage(jteap->interp);
660 LOG_USER("%s", Jim_GetString(Jim_GetResult(jteap->interp), NULL));
661 continue;
662 }
663
664 switch (e)
665 {
666 case JTAG_TAP_EVENT_ENABLE:
667 case JTAG_TAP_EVENT_DISABLE:
668 /* NOTE: we currently assume the handlers
669 * can't fail. Right here is where we should
670 * really be verifying the scan chains ...
671 */
672 tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
673 LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
674 tap->enabled ? "enabled" : "disabled");
675 break;
676 default:
677 break;
678 }
679 }
680 }
681
682 static int jim_jtag_arp_init(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
683 {
684 Jim_GetOptInfo goi;
685 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
686 if (goi.argc != 0) {
687 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
688 return JIM_ERR;
689 }
690 struct command_context *context = current_command_context(interp);
691 int e = jtag_init_inner(context);
692 if (e != ERROR_OK) {
693 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
694 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
695 Jim_FreeNewObj(goi.interp, eObj);
696 return JIM_ERR;
697 }
698 return JIM_OK;
699 }
700
701 static int jim_jtag_arp_init_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
702 {
703 Jim_GetOptInfo goi;
704 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
705 if (goi.argc != 0) {
706 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
707 return JIM_ERR;
708 }
709 struct command_context *context = current_command_context(interp);
710 int e = jtag_init_reset(context);
711 if (e != ERROR_OK) {
712 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
713 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
714 Jim_FreeNewObj(goi.interp, eObj);
715 return JIM_ERR;
716 }
717 return JIM_OK;
718 }
719
720 int jim_jtag_newtap(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
721 {
722 Jim_GetOptInfo goi;
723 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
724 return jim_newtap_cmd(&goi);
725 }
726
727 static bool jtag_tap_enable(struct jtag_tap *t)
728 {
729 if (t->enabled)
730 return false;
731 jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
732 if (!t->enabled)
733 return false;
734
735 /* FIXME add JTAG sanity checks, w/o TLR
736 * - scan chain length grew by one (this)
737 * - IDs and IR lengths are as expected
738 */
739 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
740 return true;
741 }
742 static bool jtag_tap_disable(struct jtag_tap *t)
743 {
744 if (!t->enabled)
745 return false;
746 jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
747 if (t->enabled)
748 return false;
749
750 /* FIXME add JTAG sanity checks, w/o TLR
751 * - scan chain length shrank by one (this)
752 * - IDs and IR lengths are as expected
753 */
754 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
755 return true;
756 }
757
758 static int jim_jtag_tap_enabler(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
759 {
760 const char *cmd_name = Jim_GetString(argv[0], NULL);
761 Jim_GetOptInfo goi;
762 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
763 if (goi.argc != 1) {
764 Jim_SetResultFormatted(goi.interp, "usage: %s <name>", cmd_name);
765 return JIM_ERR;
766 }
767
768 struct jtag_tap *t;
769
770 t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
771 if (t == NULL)
772 return JIM_ERR;
773
774 if (strcasecmp(cmd_name, "tapisenabled") == 0) {
775 // do nothing, just return the value
776 } else if (strcasecmp(cmd_name, "tapenable") == 0) {
777 if (!jtag_tap_enable(t))
778 LOG_WARNING("failed to enable tap %s", t->dotted_name);
779 } else if (strcasecmp(cmd_name, "tapdisable") == 0) {
780 if (!jtag_tap_disable(t))
781 LOG_WARNING("failed to disable tap %s", t->dotted_name);
782 } else {
783 LOG_ERROR("command '%s' unknown", cmd_name);
784 return JIM_ERR;
785 }
786 bool e = t->enabled;
787 Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
788 return JIM_OK;
789 }
790
791 static int jim_jtag_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
792 {
793 const char *cmd_name = Jim_GetString(argv[0], NULL);
794 Jim_GetOptInfo goi;
795 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
796 goi.isconfigure = !strcmp(cmd_name, "configure");
797 if (goi.argc < 2 + goi.isconfigure) {
798 Jim_WrongNumArgs(goi.interp, 0, NULL,
799 "<tap_name> <attribute> ...");
800 return JIM_ERR;
801 }
802
803 struct jtag_tap *t;
804
805 Jim_Obj *o;
806 Jim_GetOpt_Obj(&goi, &o);
807 t = jtag_tap_by_jim_obj(goi.interp, o);
808 if (t == NULL) {
809 return JIM_ERR;
810 }
811
812 return jtag_tap_configure_cmd(&goi, t);
813 }
814
815 static int jim_jtag_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
816 {
817 Jim_GetOptInfo goi;
818 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
819 if (goi.argc != 0) {
820 Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
821 return JIM_ERR;
822 }
823 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
824 struct jtag_tap *tap;
825
826 for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
827 Jim_ListAppendElement(goi.interp,
828 Jim_GetResult(goi.interp),
829 Jim_NewStringObj(goi.interp,
830 tap->dotted_name, -1));
831 }
832 return JIM_OK;
833 }
834
835 COMMAND_HANDLER(handle_jtag_init_command)
836 {
837 if (CMD_ARGC != 0)
838 return ERROR_COMMAND_SYNTAX_ERROR;
839
840 static bool jtag_initialized = false;
841 if (jtag_initialized)
842 {
843 LOG_INFO("'jtag init' has already been called");
844 return ERROR_OK;
845 }
846 jtag_initialized = true;
847
848 LOG_DEBUG("Initializing jtag devices...");
849 return jtag_init(CMD_CTX);
850 }
851
852 static const struct command_registration jtag_subcommand_handlers[] = {
853 {
854 .name = "init",
855 .mode = COMMAND_ANY,
856 .handler = handle_jtag_init_command,
857 .help = "initialize jtag scan chain",
858 },
859 {
860 .name = "arp_init",
861 .mode = COMMAND_ANY,
862 .jim_handler = jim_jtag_arp_init,
863 .help = "Validates JTAG scan chain against the list of "
864 "declared TAPs using just the four standard JTAG "
865 "signals.",
866 },
867 {
868 .name = "arp_init-reset",
869 .mode = COMMAND_ANY,
870 .jim_handler = jim_jtag_arp_init_reset,
871 .help = "Uses TRST and SRST to try resetting everything on "
872 "the JTAG scan chain, then performs 'jtag arp_init'."
873 },
874 {
875 .name = "newtap",
876 .mode = COMMAND_CONFIG,
877 .jim_handler = jim_jtag_newtap,
878 .help = "Create a new TAP instance named basename.tap_type, "
879 "and appends it to the scan chain.",
880 .usage = "basename tap_type '-irlen' count "
881 "['-enable'|'-disable'] "
882 "['-expected_id' number] "
883 "['-ignore-version'] "
884 "['-ircapture' number] "
885 "['-mask' number] ",
886 },
887 {
888 .name = "tapisenabled",
889 .mode = COMMAND_EXEC,
890 .jim_handler = jim_jtag_tap_enabler,
891 .help = "Returns a Tcl boolean (0/1) indicating whether "
892 "the TAP is enabled (1) or not (0).",
893 .usage = "tap_name",
894 },
895 {
896 .name = "tapenable",
897 .mode = COMMAND_EXEC,
898 .jim_handler = jim_jtag_tap_enabler,
899 .help = "Try to enable the specified TAP using the "
900 "'tap-enable' TAP event.",
901 .usage = "tap_name",
902 },
903 {
904 .name = "tapdisable",
905 .mode = COMMAND_EXEC,
906 .jim_handler = jim_jtag_tap_enabler,
907 .help = "Try to disable the specified TAP using the "
908 "'tap-disable' TAP event.",
909 .usage = "tap_name",
910 },
911 {
912 .name = "configure",
913 .mode = COMMAND_EXEC,
914 .jim_handler = jim_jtag_configure,
915 .help = "Provide a Tcl handler for the specified "
916 "TAP event.",
917 .usage = "tap_name '-event' event_name handler",
918 },
919 {
920 .name = "cget",
921 .mode = COMMAND_EXEC,
922 .jim_handler = jim_jtag_configure,
923 .help = "Return any Tcl handler for the specified "
924 "TAP event.",
925 .usage = "tap_name '-event' event_name",
926 },
927 {
928 .name = "names",
929 .mode = COMMAND_ANY,
930 .jim_handler = jim_jtag_names,
931 .help = "Returns list of all JTAG tap names.",
932 },
933 {
934 .chain = jtag_command_handlers_to_move,
935 },
936 COMMAND_REGISTRATION_DONE
937 };
938
939 void jtag_notify_event(enum jtag_event event)
940 {
941 struct jtag_tap *tap;
942
943 for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
944 jtag_tap_handle_event(tap, event);
945 }
946
947
948 COMMAND_HANDLER(handle_scan_chain_command)
949 {
950 struct jtag_tap *tap;
951 char expected_id[12];
952
953 tap = jtag_all_taps();
954 command_print(CMD_CTX,
955 " TapName Enabled IdCode Expected IrLen IrCap IrMask");
956 command_print(CMD_CTX,
957 "-- ------------------- -------- ---------- ---------- ----- ----- ------");
958
959 while (tap) {
960 uint32_t expected, expected_mask, ii;
961
962 snprintf(expected_id, sizeof expected_id, "0x%08x",
963 (unsigned)((tap->expected_ids_cnt > 0)
964 ? tap->expected_ids[0]
965 : 0));
966 if (tap->ignore_version)
967 expected_id[2] = '*';
968
969 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
970 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
971
972 command_print(CMD_CTX,
973 "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
974 tap->abs_chain_position,
975 tap->dotted_name,
976 tap->enabled ? 'Y' : 'n',
977 (unsigned int)(tap->idcode),
978 expected_id,
979 (unsigned int)(tap->ir_length),
980 (unsigned int)(expected),
981 (unsigned int)(expected_mask));
982
983 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
984 snprintf(expected_id, sizeof expected_id, "0x%08x",
985 (unsigned) tap->expected_ids[1]);
986 if (tap->ignore_version)
987 expected_id[2] = '*';
988
989 command_print(CMD_CTX,
990 " %s",
991 expected_id);
992 }
993
994 tap = tap->next_tap;
995 }
996
997 return ERROR_OK;
998 }
999
1000 COMMAND_HANDLER(handle_jtag_ntrst_delay_command)
1001 {
1002 if (CMD_ARGC > 1)
1003 return ERROR_COMMAND_SYNTAX_ERROR;
1004 if (CMD_ARGC == 1)
1005 {
1006 unsigned delay;
1007 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
1008
1009 jtag_set_ntrst_delay(delay);
1010 }
1011 command_print(CMD_CTX, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
1012 return ERROR_OK;
1013 }
1014
1015 COMMAND_HANDLER(handle_jtag_ntrst_assert_width_command)
1016 {
1017 if (CMD_ARGC > 1)
1018 return ERROR_COMMAND_SYNTAX_ERROR;
1019 if (CMD_ARGC == 1)
1020 {
1021 unsigned delay;
1022 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
1023
1024 jtag_set_ntrst_assert_width(delay);
1025 }
1026 command_print(CMD_CTX, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1027 return ERROR_OK;
1028 }
1029
1030 COMMAND_HANDLER(handle_jtag_rclk_command)
1031 {
1032 if (CMD_ARGC > 1)
1033 return ERROR_COMMAND_SYNTAX_ERROR;
1034
1035 int retval = ERROR_OK;
1036 if (CMD_ARGC == 1)
1037 {
1038 unsigned khz = 0;
1039 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
1040
1041 retval = jtag_config_rclk(khz);
1042 if (ERROR_OK != retval)
1043 return retval;
1044 }
1045
1046 int cur_khz = jtag_get_speed_khz();
1047 retval = jtag_get_speed_readable(&cur_khz);
1048 if (ERROR_OK != retval)
1049 return retval;
1050
1051 if (cur_khz)
1052 command_print(CMD_CTX, "RCLK not supported - fallback to %d kHz", cur_khz);
1053 else
1054 command_print(CMD_CTX, "RCLK - adaptive");
1055
1056 return retval;
1057 }
1058
1059 COMMAND_HANDLER(handle_jtag_reset_command)
1060 {
1061 if (CMD_ARGC != 2)
1062 return ERROR_COMMAND_SYNTAX_ERROR;
1063
1064 int trst = -1;
1065 if (CMD_ARGV[0][0] == '1')
1066 trst = 1;
1067 else if (CMD_ARGV[0][0] == '0')
1068 trst = 0;
1069 else
1070 return ERROR_COMMAND_SYNTAX_ERROR;
1071
1072 int srst = -1;
1073 if (CMD_ARGV[1][0] == '1')
1074 srst = 1;
1075 else if (CMD_ARGV[1][0] == '0')
1076 srst = 0;
1077 else
1078 return ERROR_COMMAND_SYNTAX_ERROR;
1079
1080 if (adapter_init(CMD_CTX) != ERROR_OK)
1081 return ERROR_JTAG_INIT_FAILED;
1082
1083 jtag_add_reset(trst, srst);
1084 return jtag_execute_queue();
1085 }
1086
1087 COMMAND_HANDLER(handle_runtest_command)
1088 {
1089 if (CMD_ARGC != 1)
1090 return ERROR_COMMAND_SYNTAX_ERROR;
1091
1092 unsigned num_clocks;
1093 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num_clocks);
1094
1095 jtag_add_runtest(num_clocks, TAP_IDLE);
1096 return jtag_execute_queue();
1097 }
1098
1099 /*
1100 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1101 * should be stable ... and *NOT* a shift state, otherwise free-running
1102 * jtag clocks could change the values latched by the update state.
1103 * Not surprisingly, this is the same constraint as SVF; the "irscan"
1104 * and "drscan" commands are a write-only subset of what SVF provides.
1105 */
1106
1107 COMMAND_HANDLER(handle_irscan_command)
1108 {
1109 int i;
1110 struct scan_field *fields;
1111 struct jtag_tap *tap = NULL;
1112 tap_state_t endstate;
1113
1114 if ((CMD_ARGC < 2) || (CMD_ARGC % 2))
1115 {
1116 return ERROR_COMMAND_SYNTAX_ERROR;
1117 }
1118
1119 /* optional "-endstate" "statename" at the end of the arguments,
1120 * so that e.g. IRPAUSE can let us load the data register before
1121 * entering RUN/IDLE to execute the instruction we load here.
1122 */
1123 endstate = TAP_IDLE;
1124
1125 if (CMD_ARGC >= 4) {
1126 /* have at least one pair of numbers. */
1127 /* is last pair the magic text? */
1128 if (strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2]) == 0) {
1129 endstate = tap_state_by_name(CMD_ARGV[CMD_ARGC - 1]);
1130 if (endstate == TAP_INVALID)
1131 return ERROR_COMMAND_SYNTAX_ERROR;
1132 if (!scan_is_safe(endstate))
1133 LOG_WARNING("unstable irscan endstate \"%s\"",
1134 CMD_ARGV[CMD_ARGC - 1]);
1135 CMD_ARGC -= 2;
1136 }
1137 }
1138
1139 int num_fields = CMD_ARGC / 2;
1140 if (num_fields > 1)
1141 {
1142 /* we really should be looking at plain_ir_scan if we want
1143 * anything more fancy.
1144 */
1145 LOG_ERROR("Specify a single value for tap");
1146 return ERROR_COMMAND_SYNTAX_ERROR;
1147 }
1148
1149 size_t fields_len = sizeof(struct scan_field) * num_fields;
1150 fields = malloc(fields_len);
1151 memset(fields, 0, fields_len);
1152
1153 int retval;
1154 for (i = 0; i < num_fields; i++)
1155 {
1156 tap = jtag_tap_by_string(CMD_ARGV[i*2]);
1157 if (tap == NULL)
1158 {
1159 int j;
1160 for (j = 0; j < i; j++)
1161 free((void *)fields[j].out_value);
1162 free(fields);
1163 command_print(CMD_CTX, "Tap: %s unknown", CMD_ARGV[i*2]);
1164
1165 return ERROR_FAIL;
1166 }
1167 int field_size = tap->ir_length;
1168 fields[i].num_bits = field_size;
1169 fields[i].out_value = malloc(DIV_ROUND_UP(field_size, 8));
1170
1171 uint32_t value;
1172 retval = parse_u32(CMD_ARGV[i * 2 + 1], &value);
1173 if (ERROR_OK != retval)
1174 goto error_return;
1175 void *v = (void *)fields[i].out_value;
1176 buf_set_u32(v, 0, field_size, value);
1177 fields[i].in_value = NULL;
1178 }
1179
1180 /* did we have an endstate? */
1181 jtag_add_ir_scan(tap, fields, endstate);
1182
1183 retval = jtag_execute_queue();
1184
1185 error_return:
1186 for (i = 0; i < num_fields; i++)
1187 {
1188 if (NULL != fields[i].out_value)
1189 free((void *)fields[i].out_value);
1190 }
1191
1192 free (fields);
1193
1194 return retval;
1195 }
1196
1197
1198 COMMAND_HANDLER(handle_verify_ircapture_command)
1199 {
1200 if (CMD_ARGC > 1)
1201 return ERROR_COMMAND_SYNTAX_ERROR;
1202
1203 if (CMD_ARGC == 1)
1204 {
1205 bool enable;
1206 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1207 jtag_set_verify_capture_ir(enable);
1208 }
1209
1210 const char *status = jtag_will_verify_capture_ir() ? "enabled": "disabled";
1211 command_print(CMD_CTX, "verify Capture-IR is %s", status);
1212
1213 return ERROR_OK;
1214 }
1215
1216 COMMAND_HANDLER(handle_verify_jtag_command)
1217 {
1218 if (CMD_ARGC > 1)
1219 return ERROR_COMMAND_SYNTAX_ERROR;
1220
1221 if (CMD_ARGC == 1)
1222 {
1223 bool enable;
1224 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1225 jtag_set_verify(enable);
1226 }
1227
1228 const char *status = jtag_will_verify() ? "enabled": "disabled";
1229 command_print(CMD_CTX, "verify jtag capture is %s", status);
1230
1231 return ERROR_OK;
1232 }
1233
1234 COMMAND_HANDLER(handle_tms_sequence_command)
1235 {
1236 if (CMD_ARGC > 1)
1237 return ERROR_COMMAND_SYNTAX_ERROR;
1238
1239 if (CMD_ARGC == 1)
1240 {
1241 bool use_new_table;
1242 if (strcmp(CMD_ARGV[0], "short") == 0)
1243 use_new_table = true;
1244 else if (strcmp(CMD_ARGV[0], "long") == 0)
1245 use_new_table = false;
1246 else
1247 return ERROR_COMMAND_SYNTAX_ERROR;
1248
1249 tap_use_new_tms_table(use_new_table);
1250 }
1251
1252 command_print(CMD_CTX, "tms sequence is %s",
1253 tap_uses_new_tms_table() ? "short": "long");
1254
1255 return ERROR_OK;
1256 }
1257
1258 COMMAND_HANDLER(handle_jtag_flush_queue_sleep)
1259 {
1260 if (CMD_ARGC != 1)
1261 return ERROR_COMMAND_SYNTAX_ERROR;
1262
1263 int sleep_ms;
1264 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], sleep_ms);
1265
1266 jtag_set_flush_queue_sleep(sleep_ms);
1267
1268 return ERROR_OK;
1269 }
1270
1271 COMMAND_HANDLER(handle_wait_srst_deassert)
1272 {
1273 if (CMD_ARGC != 1)
1274 return ERROR_COMMAND_SYNTAX_ERROR;
1275
1276 int timeout_ms;
1277 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], timeout_ms);
1278 if ((timeout_ms <= 0) || (timeout_ms > 100000))
1279 {
1280 LOG_ERROR("Timeout must be an integer between 0 and 100000");
1281 return ERROR_FAIL;
1282 }
1283
1284 LOG_USER("Waiting for srst assert + deassert for at most %dms", timeout_ms);
1285 int asserted_yet;
1286 long long then = timeval_ms();
1287 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK)
1288 {
1289 if ((timeval_ms() - then) > timeout_ms)
1290 {
1291 LOG_ERROR("Timed out");
1292 return ERROR_FAIL;
1293 }
1294 if (asserted_yet)
1295 break;
1296 }
1297 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK)
1298 {
1299 if ((timeval_ms() - then) > timeout_ms)
1300 {
1301 LOG_ERROR("Timed out");
1302 return ERROR_FAIL;
1303 }
1304 if (!asserted_yet)
1305 break;
1306 }
1307
1308 return ERROR_OK;
1309 }
1310
1311
1312
1313 static const struct command_registration jtag_command_handlers[] = {
1314
1315 {
1316 .name = "jtag_flush_queue_sleep",
1317 .handler = handle_jtag_flush_queue_sleep,
1318 .mode = COMMAND_ANY,
1319 .help = "For debug purposes(simulate long delays of interface) "
1320 "to test performance or change in behavior. Default 0ms.",
1321 .usage = "[sleep in ms]",
1322 },
1323 {
1324 .name = "jtag_rclk",
1325 .handler = handle_jtag_rclk_command,
1326 .mode = COMMAND_ANY,
1327 .help = "With an argument, change to to use adaptive clocking "
1328 "if possible; else to use the fallback speed. "
1329 "With or without argument, display current setting.",
1330 .usage = "[fallback_speed_khz]",
1331 },
1332 {
1333 .name = "jtag_ntrst_delay",
1334 .handler = handle_jtag_ntrst_delay_command,
1335 .mode = COMMAND_ANY,
1336 .help = "delay after deasserting trst in ms",
1337 .usage = "[milliseconds]",
1338 },
1339 {
1340 .name = "jtag_ntrst_assert_width",
1341 .handler = handle_jtag_ntrst_assert_width_command,
1342 .mode = COMMAND_ANY,
1343 .help = "delay after asserting trst in ms",
1344 .usage = "[milliseconds]",
1345 },
1346 {
1347 .name = "scan_chain",
1348 .handler = handle_scan_chain_command,
1349 .mode = COMMAND_ANY,
1350 .help = "print current scan chain configuration",
1351 },
1352 {
1353 .name = "jtag_reset",
1354 .handler = handle_jtag_reset_command,
1355 .mode = COMMAND_EXEC,
1356 .help = "Set reset line values. Value '1' is active, "
1357 "value '0' is inactive.",
1358 .usage = "trst_active srst_active",
1359 },
1360 {
1361 .name = "runtest",
1362 .handler = handle_runtest_command,
1363 .mode = COMMAND_EXEC,
1364 .help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
1365 .usage = "num_cycles"
1366 },
1367 {
1368 .name = "irscan",
1369 .handler = handle_irscan_command,
1370 .mode = COMMAND_EXEC,
1371 .help = "Execute Instruction Register (DR) scan. The "
1372 "specified opcodes are put into each TAP's IR, "
1373 "and other TAPs are put in BYPASS.",
1374 .usage = "[tap_name instruction]* ['-endstate' state_name]",
1375 },
1376 {
1377 .name = "verify_ircapture",
1378 .handler = handle_verify_ircapture_command,
1379 .mode = COMMAND_ANY,
1380 .help = "Display or assign flag controlling whether to "
1381 "verify values captured during Capture-IR.",
1382 .usage = "['enable'|'disable']",
1383 },
1384 {
1385 .name = "verify_jtag",
1386 .handler = handle_verify_jtag_command,
1387 .mode = COMMAND_ANY,
1388 .help = "Display or assign flag controlling whether to "
1389 "verify values captured during IR and DR scans.",
1390 .usage = "['enable'|'disable']",
1391 },
1392 {
1393 .name = "tms_sequence",
1394 .handler = handle_tms_sequence_command,
1395 .mode = COMMAND_ANY,
1396 .help = "Display or change what style TMS sequences to use "
1397 "for JTAG state transitions: short (default) or "
1398 "long. Only for working around JTAG bugs.",
1399 /* Specifically for working around DRIVER bugs... */
1400 .usage = "['short'|'long']",
1401 },
1402 {
1403 .name = "wait_srst_deassert",
1404 .handler = handle_wait_srst_deassert,
1405 .mode = COMMAND_ANY,
1406 .help = "Wait for an SRST deassert. "
1407 "Useful for cases where you need something to happen within ms "
1408 "of an srst deassert. Timeout in ms ",
1409 .usage = "ms",
1410 },
1411 {
1412 .name = "jtag",
1413 .mode = COMMAND_ANY,
1414 .help = "perform jtag tap actions",
1415
1416 .chain = jtag_subcommand_handlers,
1417 },
1418 {
1419 .chain = jtag_command_handlers_to_move,
1420 },
1421 COMMAND_REGISTRATION_DONE
1422 };
1423
1424 int jtag_register_commands(struct command_context *cmd_ctx)
1425 {
1426 return register_commands(cmd_ctx, NULL, jtag_command_handlers);
1427 }
Luca's development patches