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[openocd.git] / src / jtag / jtag.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2009 SoftPLC Corporation *
9 * http://softplc.com *
10 * dick@softplc.com *
11 * *
12 * This program is free software; you can redistribute it and/or modify *
13 * it under the terms of the GNU General Public License as published by *
14 * the Free Software Foundation; either version 2 of the License, or *
15 * (at your option) any later version. *
16 * *
17 * This program is distributed in the hope that it will be useful, *
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
20 * GNU General Public License for more details. *
21 * *
22 * You should have received a copy of the GNU General Public License *
23 * along with this program; if not, write to the *
24 * Free Software Foundation, Inc., *
25 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
26 ***************************************************************************/
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include "jtag.h"
32 #include "minidriver.h"
33 #include "interface.h"
34
35 #ifdef HAVE_STRINGS_H
36 #include <strings.h>
37 #endif
38
39
40 /// The number of JTAG queue flushes (for profiling and debugging purposes).
41 static int jtag_flush_queue_count;
42
43 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
44 int in_num_fields, scan_field_t *in_fields, tap_state_t state);
45
46 /* note that this is not marked as static as it must be available from outside jtag.c for those
47 that implement the jtag_xxx() minidriver layer
48 */
49 int jtag_error=ERROR_OK;
50
51 char* jtag_event_strings[] =
52 {
53 "JTAG controller reset (RESET or TRST)"
54 };
55
56 const Jim_Nvp nvp_jtag_tap_event[] = {
57 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
58 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
59
60 { .name = NULL, .value = -1 }
61 };
62
63 int jtag_trst = 0;
64 int jtag_srst = 0;
65
66 /**
67 * List all TAPs that have been created.
68 */
69 static jtag_tap_t *__jtag_all_taps = NULL;
70 /**
71 * The number of TAPs in the __jtag_all_taps list, used to track the
72 * assigned chain position to new TAPs
73 */
74 static int jtag_num_taps = 0;
75
76 enum reset_types jtag_reset_config = RESET_NONE;
77 tap_state_t cmd_queue_end_state = TAP_RESET;
78 tap_state_t cmd_queue_cur_state = TAP_RESET;
79
80 int jtag_verify_capture_ir = 1;
81 int jtag_verify = 1;
82
83 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
84 static int jtag_nsrst_delay = 0; /* default to no nSRST delay */
85 static int jtag_ntrst_delay = 0; /* default to no nTRST delay */
86
87 /* callbacks to inform high-level handlers about JTAG state changes */
88 jtag_event_callback_t *jtag_event_callbacks;
89
90 /* speed in kHz*/
91 static int speed_khz = 0;
92 /* flag if the kHz speed was defined */
93 static bool hasKHz = false;
94
95 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
96 */
97
98 #if BUILD_ECOSBOARD == 1
99 extern jtag_interface_t zy1000_interface;
100 #elif defined(BUILD_MINIDRIVER_DUMMY)
101 extern jtag_interface_t minidummy_interface;
102 #else // standard drivers
103 #if BUILD_PARPORT == 1
104 extern jtag_interface_t parport_interface;
105 #endif
106
107 #if BUILD_DUMMY == 1
108 extern jtag_interface_t dummy_interface;
109 #endif
110
111 #if BUILD_FT2232_FTD2XX == 1
112 extern jtag_interface_t ft2232_interface;
113 #endif
114
115 #if BUILD_FT2232_LIBFTDI == 1
116 extern jtag_interface_t ft2232_interface;
117 #endif
118
119 #if BUILD_AMTJTAGACCEL == 1
120 extern jtag_interface_t amt_jtagaccel_interface;
121 #endif
122
123 #if BUILD_EP93XX == 1
124 extern jtag_interface_t ep93xx_interface;
125 #endif
126
127 #if BUILD_AT91RM9200 == 1
128 extern jtag_interface_t at91rm9200_interface;
129 #endif
130
131 #if BUILD_GW16012 == 1
132 extern jtag_interface_t gw16012_interface;
133 #endif
134
135 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
136 extern jtag_interface_t presto_interface;
137 #endif
138
139 #if BUILD_USBPROG == 1
140 extern jtag_interface_t usbprog_interface;
141 #endif
142
143 #if BUILD_JLINK == 1
144 extern jtag_interface_t jlink_interface;
145 #endif
146
147 #if BUILD_VSLLINK == 1
148 extern jtag_interface_t vsllink_interface;
149 #endif
150
151 #if BUILD_RLINK == 1
152 extern jtag_interface_t rlink_interface;
153 #endif
154
155 #if BUILD_ARMJTAGEW == 1
156 extern jtag_interface_t armjtagew_interface;
157 #endif
158 #endif // standard drivers
159
160 /**
161 * The list of built-in JTAG interfaces, containing entries for those
162 * drivers that were enabled by the @c configure script.
163 *
164 * The list should be defined to contain either one minidriver interface
165 * or some number of standard driver interfaces, never both.
166 */
167 jtag_interface_t *jtag_interfaces[] = {
168 #if BUILD_ECOSBOARD == 1
169 &zy1000_interface,
170 #elif defined(BUILD_MINIDRIVER_DUMMY)
171 &minidummy_interface,
172 #else // standard drivers
173 #if BUILD_PARPORT == 1
174 &parport_interface,
175 #endif
176 #if BUILD_DUMMY == 1
177 &dummy_interface,
178 #endif
179 #if BUILD_FT2232_FTD2XX == 1
180 &ft2232_interface,
181 #endif
182 #if BUILD_FT2232_LIBFTDI == 1
183 &ft2232_interface,
184 #endif
185 #if BUILD_AMTJTAGACCEL == 1
186 &amt_jtagaccel_interface,
187 #endif
188 #if BUILD_EP93XX == 1
189 &ep93xx_interface,
190 #endif
191 #if BUILD_AT91RM9200 == 1
192 &at91rm9200_interface,
193 #endif
194 #if BUILD_GW16012 == 1
195 &gw16012_interface,
196 #endif
197 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
198 &presto_interface,
199 #endif
200 #if BUILD_USBPROG == 1
201 &usbprog_interface,
202 #endif
203 #if BUILD_JLINK == 1
204 &jlink_interface,
205 #endif
206 #if BUILD_VSLLINK == 1
207 &vsllink_interface,
208 #endif
209 #if BUILD_RLINK == 1
210 &rlink_interface,
211 #endif
212 #if BUILD_ARMJTAGEW == 1
213 &armjtagew_interface,
214 #endif
215 #endif // standard drivers
216 NULL,
217 };
218
219 struct jtag_interface_s *jtag = NULL;
220
221 /* configuration */
222 static jtag_interface_t *jtag_interface = NULL;
223 int jtag_speed = 0;
224
225 /* jtag commands */
226 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
227 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
228 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
229 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
230 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
231 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
232 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
233
234 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
235
236 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
237 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
238 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
239 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
240 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args);
241
242 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
243 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
244 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
245
246 jtag_tap_t *jtag_all_taps(void)
247 {
248 return __jtag_all_taps;
249 };
250
251 int jtag_tap_count(void)
252 {
253 return jtag_num_taps;
254 }
255
256 unsigned jtag_tap_count_enabled(void)
257 {
258 jtag_tap_t *t;
259 unsigned n;
260
261 n = 0;
262 t = jtag_all_taps();
263 while(t){
264 if( t->enabled ){
265 n++;
266 }
267 t = t->next_tap;
268 }
269 return n;
270 }
271
272 /// Append a new TAP to the chain of all taps.
273 static void jtag_tap_add(struct jtag_tap_s *t)
274 {
275 t->abs_chain_position = jtag_num_taps++;
276
277 jtag_tap_t **tap = &__jtag_all_taps;
278 while(*tap != NULL)
279 tap = &(*tap)->next_tap;
280 *tap = t;
281 }
282
283 jtag_tap_t *jtag_tap_by_string( const char *s )
284 {
285 jtag_tap_t *t;
286 char *cp;
287
288 t = jtag_all_taps();
289 /* try name first */
290 while(t){
291 if( 0 == strcmp( t->dotted_name, s ) ){
292 break;
293 } else {
294 t = t->next_tap;
295 }
296 }
297 /* backup plan is by number */
298 if( t == NULL ){
299 /* ok - is "s" a number? */
300 int n;
301 n = strtol( s, &cp, 0 );
302 if( (s != cp) && (*cp == 0) ){
303 /* Then it is... */
304 t = jtag_tap_by_abs_position(n);
305 }
306 }
307 return t;
308 }
309
310 jtag_tap_t * jtag_tap_by_jim_obj( Jim_Interp *interp, Jim_Obj *o )
311 {
312 jtag_tap_t *t;
313 const char *cp;
314
315 cp = Jim_GetString( o, NULL );
316 if(cp == NULL){
317 cp = "(unknown)";
318 t = NULL;
319 } else {
320 t = jtag_tap_by_string( cp );
321 }
322 if( t == NULL ){
323 Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
324 }
325 return t;
326 }
327
328 /* returns a pointer to the n-th device in the scan chain */
329 jtag_tap_t * jtag_tap_by_abs_position( int n )
330 {
331 int orig_n;
332 jtag_tap_t *t;
333
334 orig_n = n;
335 t = jtag_all_taps();
336
337 while( t && (n > 0)) {
338 n--;
339 t = t->next_tap;
340 }
341 return t;
342 }
343
344 const char *jtag_tap_name(const jtag_tap_t *tap)
345 {
346 return (tap == NULL) ? "(unknown)" : tap->dotted_name;
347 }
348
349
350 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
351 {
352 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
353
354 if (callback == NULL)
355 {
356 return ERROR_INVALID_ARGUMENTS;
357 }
358
359 if (*callbacks_p)
360 {
361 while ((*callbacks_p)->next)
362 callbacks_p = &((*callbacks_p)->next);
363 callbacks_p = &((*callbacks_p)->next);
364 }
365
366 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
367 (*callbacks_p)->callback = callback;
368 (*callbacks_p)->priv = priv;
369 (*callbacks_p)->next = NULL;
370
371 return ERROR_OK;
372 }
373
374 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
375 {
376 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
377
378 if (callback == NULL)
379 {
380 return ERROR_INVALID_ARGUMENTS;
381 }
382
383 while (*callbacks_p)
384 {
385 jtag_event_callback_t **next = &((*callbacks_p)->next);
386 if ((*callbacks_p)->callback == callback)
387 {
388 free(*callbacks_p);
389 *callbacks_p = *next;
390 }
391 callbacks_p = next;
392 }
393
394 return ERROR_OK;
395 }
396
397 int jtag_call_event_callbacks(enum jtag_event event)
398 {
399 jtag_event_callback_t *callback = jtag_event_callbacks;
400
401 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
402
403 while (callback)
404 {
405 callback->callback(event, callback->priv);
406 callback = callback->next;
407 }
408
409 return ERROR_OK;
410 }
411
412 static void jtag_checks(void)
413 {
414 assert(jtag_trst == 0);
415 }
416
417 static void jtag_prelude(tap_state_t state)
418 {
419 jtag_checks();
420
421 assert(state!=TAP_INVALID);
422
423 cmd_queue_cur_state = state;
424 }
425
426 void jtag_alloc_in_value32(scan_field_t *field)
427 {
428 interface_jtag_alloc_in_value32(field);
429 }
430
431 void jtag_add_ir_scan_noverify(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
432 {
433 int retval;
434 jtag_prelude(state);
435
436 retval=interface_jtag_add_ir_scan(in_num_fields, in_fields, state);
437 if (retval!=ERROR_OK)
438 jtag_error=retval;
439
440 }
441
442
443 /**
444 * Generate an IR SCAN with a list of scan fields with one entry for each enabled TAP.
445 *
446 * If the input field list contains an instruction value for a TAP then that is used
447 * otherwise the TAP is set to bypass.
448 *
449 * TAPs for which no fields are passed are marked as bypassed for subsequent DR SCANs.
450 *
451 */
452 void jtag_add_ir_scan(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
453 {
454 if (jtag_verify&&jtag_verify_capture_ir)
455 {
456 /* 8 x 32 bit id's is enough for all invocations */
457
458 for (int j = 0; j < in_num_fields; j++)
459 {
460 /* if we are to run a verification of the ir scan, we need to get the input back.
461 * We may have to allocate space if the caller didn't ask for the input back.
462 */
463 in_fields[j].check_value=in_fields[j].tap->expected;
464 in_fields[j].check_mask=in_fields[j].tap->expected_mask;
465 }
466 jtag_add_scan_check(jtag_add_ir_scan_noverify, in_num_fields, in_fields, state);
467 } else
468 {
469 jtag_add_ir_scan_noverify(in_num_fields, in_fields, state);
470 }
471 }
472
473 /**
474 * Duplicate the scan fields passed into the function into an IR SCAN command
475 *
476 * This function assumes that the caller handles extra fields for bypassed TAPs
477 *
478 */
479 void jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
480 {
481 int retval;
482
483 jtag_prelude(state);
484
485 retval=interface_jtag_add_plain_ir_scan(in_num_fields, in_fields, state);
486 if (retval!=ERROR_OK)
487 jtag_error=retval;
488 }
489
490 void jtag_add_callback(jtag_callback1_t f, u8 *in)
491 {
492 interface_jtag_add_callback(f, in);
493 }
494
495 void jtag_add_callback4(jtag_callback_t f, u8 *in,
496 jtag_callback_data_t data1, jtag_callback_data_t data2,
497 jtag_callback_data_t data3)
498 {
499 interface_jtag_add_callback4(f, in, data1, data2, data3);
500 }
501
502 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits);
503
504 static int jtag_check_value_mask_callback(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
505 {
506 return jtag_check_value_inner(in, (u8 *)data1, (u8 *)data2, (int)data3);
507 }
508
509 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
510 int in_num_fields, scan_field_t *in_fields, tap_state_t state)
511 {
512 for (int i = 0; i < in_num_fields; i++)
513 {
514 struct scan_field_s *field = &in_fields[i];
515 field->allocated = 0;
516 field->modified = 0;
517 if (field->check_value || field->in_value)
518 continue;
519 interface_jtag_add_scan_check_alloc(field);
520 field->modified = 1;
521 }
522
523 jtag_add_scan(in_num_fields, in_fields, state);
524
525 for (int i = 0; i < in_num_fields; i++)
526 {
527 if ((in_fields[i].check_value != NULL) && (in_fields[i].in_value != NULL))
528 {
529 /* this is synchronous for a minidriver */
530 jtag_add_callback4(jtag_check_value_mask_callback, in_fields[i].in_value,
531 (jtag_callback_data_t)in_fields[i].check_value,
532 (jtag_callback_data_t)in_fields[i].check_mask,
533 (jtag_callback_data_t)in_fields[i].num_bits);
534 }
535 if (in_fields[i].allocated)
536 {
537 free(in_fields[i].in_value);
538 }
539 if (in_fields[i].modified)
540 {
541 in_fields[i].in_value = NULL;
542 }
543 }
544 }
545
546 void jtag_add_dr_scan_check(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
547 {
548 if (jtag_verify)
549 {
550 jtag_add_scan_check(jtag_add_dr_scan, in_num_fields, in_fields, state);
551 } else
552 {
553 jtag_add_dr_scan(in_num_fields, in_fields, state);
554 }
555 }
556
557
558 /**
559 * Generate a DR SCAN using the fields passed to the function
560 *
561 * For not bypassed TAPs the function checks in_fields and uses fields specified there.
562 * For bypassed TAPs the function generates a dummy 1bit field.
563 *
564 * The bypass status of TAPs is set by jtag_add_ir_scan().
565 *
566 */
567 void jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
568 {
569 int retval;
570
571 jtag_prelude(state);
572
573 retval=interface_jtag_add_dr_scan(in_num_fields, in_fields, state);
574 if (retval!=ERROR_OK)
575 jtag_error=retval;
576 }
577
578
579
580 /**
581 * Duplicate the scan fields passed into the function into a DR SCAN command
582 *
583 * This function assumes that the caller handles extra fields for bypassed TAPs
584 *
585 */
586 void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
587 {
588 int retval;
589
590 jtag_prelude(state);
591
592 retval=interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, state);
593 if (retval!=ERROR_OK)
594 jtag_error=retval;
595 }
596
597 void jtag_add_dr_out(jtag_tap_t* tap,
598 int num_fields, const int* num_bits, const u32* value,
599 tap_state_t end_state)
600 {
601 assert(end_state != TAP_INVALID);
602
603 cmd_queue_cur_state = end_state;
604
605 interface_jtag_add_dr_out(tap,
606 num_fields, num_bits, value,
607 end_state);
608 }
609
610 void jtag_add_tlr(void)
611 {
612 jtag_prelude(TAP_RESET);
613
614 int retval;
615 retval=interface_jtag_add_tlr();
616 if (retval!=ERROR_OK)
617 jtag_error=retval;
618
619 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
620 }
621
622 void jtag_add_pathmove(int num_states, const tap_state_t *path)
623 {
624 tap_state_t cur_state = cmd_queue_cur_state;
625 int i;
626 int retval;
627
628 /* the last state has to be a stable state */
629 if (!tap_is_state_stable(path[num_states - 1]))
630 {
631 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
632 exit(-1);
633 }
634
635 for (i=0; i<num_states; i++)
636 {
637 if (path[i] == TAP_RESET)
638 {
639 LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
640 exit(-1);
641 }
642
643 if ( tap_state_transition(cur_state, true) != path[i]
644 && tap_state_transition(cur_state, false) != path[i])
645 {
646 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[i]));
647 exit(-1);
648 }
649 cur_state = path[i];
650 }
651
652 jtag_checks();
653
654 retval = interface_jtag_add_pathmove(num_states, path);
655 cmd_queue_cur_state = path[num_states - 1];
656 if (retval!=ERROR_OK)
657 jtag_error=retval;
658 }
659
660 void jtag_add_runtest(int num_cycles, tap_state_t state)
661 {
662 int retval;
663
664 jtag_prelude(state);
665
666 /* executed by sw or hw fifo */
667 retval=interface_jtag_add_runtest(num_cycles, state);
668 if (retval!=ERROR_OK)
669 jtag_error=retval;
670 }
671
672
673 void jtag_add_clocks( int num_cycles )
674 {
675 int retval;
676
677 if( !tap_is_state_stable(cmd_queue_cur_state) )
678 {
679 LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
680 tap_state_name(cmd_queue_cur_state) );
681 jtag_error = ERROR_JTAG_NOT_STABLE_STATE;
682 return;
683 }
684
685 if( num_cycles > 0 )
686 {
687 jtag_checks();
688
689 retval = interface_jtag_add_clocks(num_cycles);
690 if (retval != ERROR_OK)
691 jtag_error=retval;
692 }
693 }
694
695 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
696 {
697 int trst_with_tlr = 0;
698 int retval;
699
700 /* FIX!!! there are *many* different cases here. A better
701 * approach is needed for legal combinations of transitions...
702 */
703 if ((jtag_reset_config & RESET_HAS_SRST)&&
704 (jtag_reset_config & RESET_HAS_TRST)&&
705 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
706 {
707 if (((req_tlr_or_trst&&!jtag_trst)||
708 (!req_tlr_or_trst&&jtag_trst))&&
709 ((req_srst&&!jtag_srst)||
710 (!req_srst&&jtag_srst)))
711 {
712 /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
713 //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
714 }
715 }
716
717 /* Make sure that jtag_reset_config allows the requested reset */
718 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
719 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
720 {
721 LOG_ERROR("BUG: requested reset would assert trst");
722 jtag_error=ERROR_FAIL;
723 return;
724 }
725
726 /* if TRST pulls SRST, we reset with TAP T-L-R */
727 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
728 {
729 trst_with_tlr = 1;
730 }
731
732 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
733 {
734 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
735 jtag_error=ERROR_FAIL;
736 return;
737 }
738
739 if (req_tlr_or_trst)
740 {
741 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
742 {
743 jtag_trst = 1;
744 } else
745 {
746 trst_with_tlr = 1;
747 }
748 } else
749 {
750 jtag_trst = 0;
751 }
752
753 jtag_srst = req_srst;
754
755 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
756 if (retval!=ERROR_OK)
757 {
758 jtag_error=retval;
759 return;
760 }
761 jtag_execute_queue();
762
763 if (jtag_srst)
764 {
765 LOG_DEBUG("SRST line asserted");
766 }
767 else
768 {
769 LOG_DEBUG("SRST line released");
770 if (jtag_nsrst_delay)
771 jtag_add_sleep(jtag_nsrst_delay * 1000);
772 }
773
774 if (trst_with_tlr)
775 {
776 LOG_DEBUG("JTAG reset with RESET instead of TRST");
777 jtag_set_end_state(TAP_RESET);
778 jtag_add_tlr();
779 return;
780 }
781
782 if (jtag_trst)
783 {
784 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
785 * and inform possible listeners about this
786 */
787 LOG_DEBUG("TRST line asserted");
788 tap_set_state(TAP_RESET);
789 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
790 }
791 else
792 {
793 if (jtag_ntrst_delay)
794 jtag_add_sleep(jtag_ntrst_delay * 1000);
795 }
796 }
797
798 tap_state_t jtag_set_end_state(tap_state_t state)
799 {
800 if ((state == TAP_DRSHIFT)||(state == TAP_IRSHIFT))
801 {
802 LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field");
803 }
804
805 if (state!=TAP_INVALID)
806 cmd_queue_end_state = state;
807 return cmd_queue_end_state;
808 }
809
810 tap_state_t jtag_get_end_state(void)
811 {
812 return cmd_queue_end_state;
813 }
814
815 void jtag_add_sleep(u32 us)
816 {
817 keep_alive(); /* we might be running on a very slow JTAG clk */
818 int retval=interface_jtag_add_sleep(us);
819 if (retval!=ERROR_OK)
820 jtag_error=retval;
821 return;
822 }
823
824 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits)
825 {
826 int retval = ERROR_OK;
827
828 int compare_failed = 0;
829
830 if (in_check_mask)
831 compare_failed = buf_cmp_mask(captured, in_check_value, in_check_mask, num_bits);
832 else
833 compare_failed = buf_cmp(captured, in_check_value, num_bits);
834
835 if (compare_failed){
836 /* An error handler could have caught the failing check
837 * only report a problem when there wasn't a handler, or if the handler
838 * acknowledged the error
839 */
840 /*
841 LOG_WARNING("TAP %s:",
842 jtag_tap_name(field->tap));
843 */
844 if (compare_failed)
845 {
846 char *captured_char = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
847 char *in_check_value_char = buf_to_str(in_check_value, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
848
849 if (in_check_mask)
850 {
851 char *in_check_mask_char;
852 in_check_mask_char = buf_to_str(in_check_mask, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
853 LOG_WARNING("value captured during scan didn't pass the requested check:");
854 LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
855 captured_char, in_check_value_char, in_check_mask_char);
856 free(in_check_mask_char);
857 }
858 else
859 {
860 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
861 }
862
863 free(captured_char);
864 free(in_check_value_char);
865
866 retval = ERROR_JTAG_QUEUE_FAILED;
867 }
868
869 }
870 return retval;
871 }
872
873 void jtag_check_value_mask(scan_field_t *field, u8 *value, u8 *mask)
874 {
875 assert(field->in_value != NULL);
876
877 if (value==NULL)
878 {
879 /* no checking to do */
880 return;
881 }
882
883 jtag_execute_queue_noclear();
884
885 int retval=jtag_check_value_inner(field->in_value, value, mask, field->num_bits);
886 jtag_set_error(retval);
887 }
888
889
890
891 int default_interface_jtag_execute_queue(void)
892 {
893 if (NULL == jtag)
894 {
895 LOG_ERROR("No JTAG interface configured yet. "
896 "Issue 'init' command in startup scripts "
897 "before communicating with targets.");
898 return ERROR_FAIL;
899 }
900
901 return jtag->execute_queue();
902 }
903
904 void jtag_execute_queue_noclear(void)
905 {
906 /* each flush can take as much as 1-2ms on high bandwidth low latency interfaces.
907 * E.g. a JTAG over TCP/IP or USB....
908 */
909 jtag_flush_queue_count++;
910
911 int retval=interface_jtag_execute_queue();
912 /* we keep the first error */
913 if ((jtag_error==ERROR_OK)&&(retval!=ERROR_OK))
914 {
915 jtag_error=retval;
916 }
917 }
918
919 int jtag_get_flush_queue_count(void)
920 {
921 return jtag_flush_queue_count;
922 }
923
924 int jtag_execute_queue(void)
925 {
926 int retval;
927 jtag_execute_queue_noclear();
928 retval=jtag_error;
929 jtag_error=ERROR_OK;
930 return retval;
931 }
932
933 static int jtag_reset_callback(enum jtag_event event, void *priv)
934 {
935 jtag_tap_t *tap = priv;
936
937 LOG_DEBUG("-");
938
939 if (event == JTAG_TRST_ASSERTED)
940 {
941 buf_set_ones(tap->cur_instr, tap->ir_length);
942 tap->bypass = 1;
943 }
944
945 return ERROR_OK;
946 }
947
948 void jtag_sleep(u32 us)
949 {
950 alive_sleep(us/1000);
951 }
952
953 /// maximum number of JTAG devices expected in the chain
954 #define JTAG_MAX_CHAIN_SIZE 20
955
956 #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
957 #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
958 #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
959
960 static int jtag_examine_chain_execute(u8 *idcode_buffer, unsigned num_idcode)
961 {
962 scan_field_t field = {
963 .tap = NULL,
964 .num_bits = num_idcode * 32,
965 .out_value = idcode_buffer,
966 .in_value = idcode_buffer,
967 };
968
969 // initialize to the end of chain ID value
970 for (unsigned i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
971 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
972
973 jtag_add_plain_dr_scan(1, &field, TAP_RESET);
974 return jtag_execute_queue();
975 }
976
977 static bool jtag_examine_chain_check(u8 *idcodes, unsigned count)
978 {
979 u8 zero_check = 0x0;
980 u8 one_check = 0xff;
981
982 for (unsigned i = 0; i < count * 4; i++)
983 {
984 zero_check |= idcodes[i];
985 one_check &= idcodes[i];
986 }
987
988 /* if there wasn't a single non-zero bit or if all bits were one,
989 * the scan is not valid */
990 if (zero_check == 0x00 || one_check == 0xff)
991 {
992 LOG_ERROR("JTAG communication failure: check connection, "
993 "JTAG interface, target power etc.");
994 return false;
995 }
996 return true;
997 }
998
999 static void jtag_examine_chain_display(enum log_levels level, const char *msg,
1000 const char *name, u32 idcode)
1001 {
1002 log_printf_lf(level, __FILE__, __LINE__, __FUNCTION__,
1003 "JTAG tap: %s %16.16s: 0x%08x "
1004 "(mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
1005 name, msg, idcode,
1006 EXTRACT_MFG(idcode), EXTRACT_PART(idcode), EXTRACT_VER(idcode) );
1007 }
1008
1009 static bool jtag_idcode_is_final(u32 idcode)
1010 {
1011 return idcode == 0x000000FF || idcode == 0xFFFFFFFF;
1012 }
1013
1014 /**
1015 * This helper checks that remaining bits in the examined chain data are
1016 * all as expected, but a single JTAG device requires only 64 bits to be
1017 * read back correctly. This can help identify and diagnose problems
1018 * with the JTAG chain earlier, gives more helpful/explicit error messages.
1019 */
1020 static void jtag_examine_chain_end(u8 *idcodes, unsigned count, unsigned max)
1021 {
1022 bool triggered = false;
1023 for ( ; count < max - 31; count += 32)
1024 {
1025 u32 idcode = buf_get_u32(idcodes, count, 32);
1026 // do not trigger the warning if the data looks good
1027 if (!triggered && jtag_idcode_is_final(idcode))
1028 continue;
1029 LOG_WARNING("Unexpected idcode after end of chain: %d 0x%08x",
1030 count, idcode);
1031 triggered = true;
1032 }
1033 }
1034
1035 static bool jtag_examine_chain_match_tap(const struct jtag_tap_s *tap)
1036 {
1037 if (0 == tap->expected_ids_cnt)
1038 {
1039 /// @todo Enable LOG_INFO to ask for reports about unknown TAP IDs.
1040 #if 0
1041 LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode)
1042 LOG_INFO("Please report the chip name and reported ID code to the openocd project");
1043 #endif
1044 return true;
1045 }
1046
1047 /* Loop over the expected identification codes and test for a match */
1048 u8 ii;
1049 for (ii = 0; ii < tap->expected_ids_cnt; ii++)
1050 {
1051 if (tap->idcode == tap->expected_ids[ii])
1052 break;
1053 }
1054
1055 /* If none of the expected ids matched, log an error */
1056 if (ii != tap->expected_ids_cnt)
1057 {
1058 LOG_INFO("JTAG Tap/device matched");
1059 return true;
1060 }
1061 jtag_examine_chain_display(LOG_LVL_ERROR, "got",
1062 tap->dotted_name, tap->idcode);
1063 for (ii = 0; ii < tap->expected_ids_cnt; ii++)
1064 {
1065 char msg[32];
1066 snprintf(msg, sizeof(msg), "expected %hhu of %hhu",
1067 ii + 1, tap->expected_ids_cnt);
1068 jtag_examine_chain_display(LOG_LVL_ERROR, msg,
1069 tap->dotted_name, tap->expected_ids[ii]);
1070 }
1071 return false;
1072 }
1073
1074 /* Try to examine chain layout according to IEEE 1149.1 §12
1075 */
1076 static int jtag_examine_chain(void)
1077 {
1078 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1079 unsigned device_count = 0;
1080
1081 jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE);
1082
1083 if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE))
1084 return ERROR_JTAG_INIT_FAILED;
1085
1086 /* point at the 1st tap */
1087 jtag_tap_t *tap = jtag_tap_next_enabled(NULL);
1088 if (tap == NULL)
1089 {
1090 LOG_ERROR("JTAG: No taps enabled?");
1091 return ERROR_JTAG_INIT_FAILED;
1092 }
1093
1094 for (unsigned bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1095 {
1096 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1097 if ((idcode & 1) == 0)
1098 {
1099 /* LSB must not be 0, this indicates a device in bypass */
1100 LOG_WARNING("Tap/Device does not have IDCODE");
1101 idcode = 0;
1102
1103 bit_count += 1;
1104 }
1105 else
1106 {
1107 /*
1108 * End of chain (invalid manufacturer ID) some devices, such
1109 * as AVR will output all 1's instead of TDI input value at
1110 * end of chain.
1111 */
1112 if (jtag_idcode_is_final(idcode))
1113 {
1114 jtag_examine_chain_end(idcode_buffer,
1115 bit_count + 32, JTAG_MAX_CHAIN_SIZE * 32);
1116 break;
1117 }
1118
1119 jtag_examine_chain_display(LOG_LVL_INFO, "tap/device found",
1120 tap ? tap->dotted_name : "(not-named)",
1121 idcode);
1122
1123 bit_count += 32;
1124 }
1125 device_count++;
1126 if (!tap)
1127 continue;
1128
1129 tap->idcode = idcode;
1130
1131 // ensure the TAP ID does matches what was expected
1132 if (!jtag_examine_chain_match_tap(tap))
1133 return ERROR_JTAG_INIT_FAILED;
1134
1135 tap = jtag_tap_next_enabled(tap);
1136 }
1137
1138 /* see if number of discovered devices matches configuration */
1139 if (device_count != jtag_tap_count_enabled())
1140 {
1141 LOG_ERROR("number of discovered devices in JTAG chain (%i) "
1142 "does not match (enabled) configuration (%i), total taps: %d",
1143 device_count, jtag_tap_count_enabled(), jtag_tap_count());
1144 LOG_ERROR("check the config file and ensure proper JTAG communication"
1145 " (connections, speed, ...)");
1146 return ERROR_JTAG_INIT_FAILED;
1147 }
1148
1149 return ERROR_OK;
1150 }
1151
1152 static int jtag_validate_chain(void)
1153 {
1154 jtag_tap_t *tap;
1155 int total_ir_length = 0;
1156 u8 *ir_test = NULL;
1157 scan_field_t field;
1158 int chain_pos = 0;
1159
1160 tap = NULL;
1161 total_ir_length = 0;
1162 for(;;){
1163 tap = jtag_tap_next_enabled(tap);
1164 if( tap == NULL ){
1165 break;
1166 }
1167 total_ir_length += tap->ir_length;
1168 }
1169
1170 total_ir_length += 2;
1171 ir_test = malloc(CEIL(total_ir_length, 8));
1172 buf_set_ones(ir_test, total_ir_length);
1173
1174 field.tap = NULL;
1175 field.num_bits = total_ir_length;
1176 field.out_value = ir_test;
1177 field.in_value = ir_test;
1178
1179
1180 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1181 jtag_execute_queue();
1182
1183 tap = NULL;
1184 chain_pos = 0;
1185 int val;
1186 for(;;){
1187 tap = jtag_tap_next_enabled(tap);
1188 if( tap == NULL ){
1189 break;
1190 }
1191
1192 val = buf_get_u32(ir_test, chain_pos, 2);
1193 if (val != 0x1)
1194 {
1195 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1196 LOG_ERROR("Could not validate JTAG scan chain, IR mismatch, scan returned 0x%s. tap=%s pos=%d expected 0x1 got %0x", cbuf, jtag_tap_name(tap), chain_pos, val);
1197 free(cbuf);
1198 free(ir_test);
1199 return ERROR_JTAG_INIT_FAILED;
1200 }
1201 chain_pos += tap->ir_length;
1202 }
1203
1204 val = buf_get_u32(ir_test, chain_pos, 2);
1205 if (val != 0x3)
1206 {
1207 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1208 LOG_ERROR("Could not validate end of JTAG scan chain, IR mismatch, scan returned 0x%s. pos=%d expected 0x3 got %0x", cbuf, chain_pos, val);
1209 free(cbuf);
1210 free(ir_test);
1211 return ERROR_JTAG_INIT_FAILED;
1212 }
1213
1214 free(ir_test);
1215
1216 return ERROR_OK;
1217 }
1218
1219 enum jtag_tap_cfg_param {
1220 JCFG_EVENT
1221 };
1222
1223 static Jim_Nvp nvp_config_opts[] = {
1224 { .name = "-event", .value = JCFG_EVENT },
1225
1226 { .name = NULL, .value = -1 }
1227 };
1228
1229 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
1230 {
1231 Jim_Nvp *n;
1232 Jim_Obj *o;
1233 int e;
1234
1235 /* parse config or cget options */
1236 while (goi->argc > 0) {
1237 Jim_SetEmptyResult (goi->interp);
1238
1239 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1240 if (e != JIM_OK) {
1241 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1242 return e;
1243 }
1244
1245 switch (n->value) {
1246 case JCFG_EVENT:
1247 if (goi->argc == 0) {
1248 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1249 return JIM_ERR;
1250 }
1251
1252 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1253 if (e != JIM_OK) {
1254 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1255 return e;
1256 }
1257
1258 if (goi->isconfigure) {
1259 if (goi->argc != 1) {
1260 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1261 return JIM_ERR;
1262 }
1263 } else {
1264 if (goi->argc != 0) {
1265 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1266 return JIM_ERR;
1267 }
1268 }
1269
1270 {
1271 jtag_tap_event_action_t *jteap;
1272
1273 jteap = tap->event_action;
1274 /* replace existing? */
1275 while (jteap) {
1276 if (jteap->event == (enum jtag_tap_event)n->value) {
1277 break;
1278 }
1279 jteap = jteap->next;
1280 }
1281
1282 if (goi->isconfigure) {
1283 if (jteap == NULL) {
1284 /* create new */
1285 jteap = calloc(1, sizeof (*jteap));
1286 }
1287 jteap->event = n->value;
1288 Jim_GetOpt_Obj( goi, &o);
1289 if (jteap->body) {
1290 Jim_DecrRefCount(interp, jteap->body);
1291 }
1292 jteap->body = Jim_DuplicateObj(goi->interp, o);
1293 Jim_IncrRefCount(jteap->body);
1294
1295 /* add to head of event list */
1296 jteap->next = tap->event_action;
1297 tap->event_action = jteap;
1298 Jim_SetEmptyResult(goi->interp);
1299 } else {
1300 /* get */
1301 if (jteap == NULL) {
1302 Jim_SetEmptyResult(goi->interp);
1303 } else {
1304 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1305 }
1306 }
1307 }
1308 /* loop for more */
1309 break;
1310 }
1311 } /* while (goi->argc) */
1312
1313 return JIM_OK;
1314 }
1315
1316
1317 static void jtag_tap_init(jtag_tap_t *tap)
1318 {
1319 assert(0 != tap->ir_length);
1320
1321 tap->expected = malloc(tap->ir_length);
1322 tap->expected_mask = malloc(tap->ir_length);
1323 tap->cur_instr = malloc(tap->ir_length);
1324
1325 buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
1326 buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
1327 buf_set_ones(tap->cur_instr, tap->ir_length);
1328
1329 // place TAP in bypass mode
1330 tap->bypass = 1;
1331 // register the reset callback for the TAP
1332 jtag_register_event_callback(&jtag_reset_callback, tap);
1333
1334 LOG_DEBUG("Created Tap: %s @ abs position %d, "
1335 "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name,
1336 tap->abs_chain_position, tap->ir_length,
1337 tap->ir_capture_value, tap->ir_capture_mask);
1338 jtag_tap_add(tap);
1339 }
1340
1341 static void jtag_tap_free(jtag_tap_t *tap)
1342 {
1343 /// @todo is anything missing? no memory leaks please
1344 free((void *)tap->expected_ids);
1345 free((void *)tap->chip);
1346 free((void *)tap->tapname);
1347 free((void *)tap->dotted_name);
1348 free(tap);
1349 }
1350
1351 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1352 {
1353 jtag_tap_t *pTap;
1354 jim_wide w;
1355 int x;
1356 int e;
1357 int reqbits;
1358 Jim_Nvp *n;
1359 char *cp;
1360 const Jim_Nvp opts[] = {
1361 #define NTAP_OPT_IRLEN 0
1362 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1363 #define NTAP_OPT_IRMASK 1
1364 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1365 #define NTAP_OPT_IRCAPTURE 2
1366 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1367 #define NTAP_OPT_ENABLED 3
1368 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1369 #define NTAP_OPT_DISABLED 4
1370 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1371 #define NTAP_OPT_EXPECTED_ID 5
1372 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1373 { .name = NULL , .value = -1 },
1374 };
1375
1376 pTap = malloc( sizeof(jtag_tap_t) );
1377 memset( pTap, 0, sizeof(*pTap) );
1378 if( !pTap ){
1379 Jim_SetResult_sprintf( goi->interp, "no memory");
1380 return JIM_ERR;
1381 }
1382 /*
1383 * we expect CHIP + TAP + OPTIONS
1384 * */
1385 if( goi->argc < 3 ){
1386 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1387 return JIM_ERR;
1388 }
1389 Jim_GetOpt_String( goi, &cp, NULL );
1390 pTap->chip = strdup(cp);
1391
1392 Jim_GetOpt_String( goi, &cp, NULL );
1393 pTap->tapname = strdup(cp);
1394
1395 /* name + dot + name + null */
1396 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1397 cp = malloc( x );
1398 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1399 pTap->dotted_name = cp;
1400
1401 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1402 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1403
1404 /* default is enabled */
1405 pTap->enabled = 1;
1406
1407 /* deal with options */
1408 #define NTREQ_IRLEN 1
1409 #define NTREQ_IRCAPTURE 2
1410 #define NTREQ_IRMASK 4
1411
1412 /* clear them as we find them */
1413 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1414
1415 while( goi->argc ){
1416 e = Jim_GetOpt_Nvp( goi, opts, &n );
1417 if( e != JIM_OK ){
1418 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1419 return e;
1420 }
1421 LOG_DEBUG("Processing option: %s", n->name );
1422 switch( n->value ){
1423 case NTAP_OPT_ENABLED:
1424 pTap->enabled = 1;
1425 break;
1426 case NTAP_OPT_DISABLED:
1427 pTap->enabled = 0;
1428 break;
1429 case NTAP_OPT_EXPECTED_ID:
1430 {
1431 u32 *new_expected_ids;
1432
1433 e = Jim_GetOpt_Wide( goi, &w );
1434 if( e != JIM_OK) {
1435 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1436 return e;
1437 }
1438
1439 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1440 if (new_expected_ids == NULL) {
1441 Jim_SetResult_sprintf( goi->interp, "no memory");
1442 return JIM_ERR;
1443 }
1444
1445 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1446
1447 new_expected_ids[pTap->expected_ids_cnt] = w;
1448
1449 free(pTap->expected_ids);
1450 pTap->expected_ids = new_expected_ids;
1451 pTap->expected_ids_cnt++;
1452 break;
1453 }
1454 case NTAP_OPT_IRLEN:
1455 case NTAP_OPT_IRMASK:
1456 case NTAP_OPT_IRCAPTURE:
1457 e = Jim_GetOpt_Wide( goi, &w );
1458 if( e != JIM_OK ){
1459 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1460 return e;
1461 }
1462 if( (w < 0) || (w > 0xffff) ){
1463 /* wacky value */
1464 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1465 n->name, (int)(w), (int)(w));
1466 return JIM_ERR;
1467 }
1468 switch(n->value){
1469 case NTAP_OPT_IRLEN:
1470 pTap->ir_length = w;
1471 reqbits &= (~(NTREQ_IRLEN));
1472 break;
1473 case NTAP_OPT_IRMASK:
1474 pTap->ir_capture_mask = w;
1475 reqbits &= (~(NTREQ_IRMASK));
1476 break;
1477 case NTAP_OPT_IRCAPTURE:
1478 pTap->ir_capture_value = w;
1479 reqbits &= (~(NTREQ_IRCAPTURE));
1480 break;
1481 }
1482 } /* switch(n->value) */
1483 } /* while( goi->argc ) */
1484
1485 /* Did all the required option bits get cleared? */
1486 if (0 == reqbits)
1487 {
1488 jtag_tap_init(pTap);
1489 return ERROR_OK;
1490 }
1491
1492 Jim_SetResult_sprintf(goi->interp,
1493 "newtap: %s missing required parameters",
1494 pTap->dotted_name);
1495 jtag_tap_free(pTap);
1496 return JIM_ERR;
1497 }
1498
1499 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
1500 {
1501 Jim_GetOptInfo goi;
1502 int e;
1503 Jim_Nvp *n;
1504 Jim_Obj *o;
1505 struct command_context_s *context;
1506
1507 enum {
1508 JTAG_CMD_INTERFACE,
1509 JTAG_CMD_INIT_RESET,
1510 JTAG_CMD_NEWTAP,
1511 JTAG_CMD_TAPENABLE,
1512 JTAG_CMD_TAPDISABLE,
1513 JTAG_CMD_TAPISENABLED,
1514 JTAG_CMD_CONFIGURE,
1515 JTAG_CMD_CGET
1516 };
1517
1518 const Jim_Nvp jtag_cmds[] = {
1519 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
1520 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
1521 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
1522 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
1523 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
1524 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
1525 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
1526 { .name = "cget" , .value = JTAG_CMD_CGET },
1527
1528 { .name = NULL, .value = -1 },
1529 };
1530
1531 context = Jim_GetAssocData(interp, "context");
1532 /* go past the command */
1533 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
1534
1535 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
1536 if( e != JIM_OK ){
1537 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
1538 return e;
1539 }
1540 Jim_SetEmptyResult( goi.interp );
1541 switch( n->value ){
1542 case JTAG_CMD_INTERFACE:
1543 /* return the name of the interface */
1544 /* TCL code might need to know the exact type... */
1545 /* FUTURE: we allow this as a means to "set" the interface. */
1546 if( goi.argc != 0 ){
1547 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1548 return JIM_ERR;
1549 }
1550 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
1551 return JIM_OK;
1552 case JTAG_CMD_INIT_RESET:
1553 if( goi.argc != 0 ){
1554 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1555 return JIM_ERR;
1556 }
1557 e = jtag_init_reset(context);
1558 if( e != ERROR_OK ){
1559 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
1560 return JIM_ERR;
1561 }
1562 return JIM_OK;
1563 case JTAG_CMD_NEWTAP:
1564 return jim_newtap_cmd( &goi );
1565 break;
1566 case JTAG_CMD_TAPISENABLED:
1567 case JTAG_CMD_TAPENABLE:
1568 case JTAG_CMD_TAPDISABLE:
1569 if( goi.argc != 1 ){
1570 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
1571 return JIM_ERR;
1572 }
1573
1574 {
1575 jtag_tap_t *t;
1576 t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
1577 if( t == NULL ){
1578 return JIM_ERR;
1579 }
1580 switch( n->value ){
1581 case JTAG_CMD_TAPISENABLED:
1582 e = t->enabled;
1583 break;
1584 case JTAG_CMD_TAPENABLE:
1585 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
1586 e = 1;
1587 t->enabled = e;
1588 break;
1589 case JTAG_CMD_TAPDISABLE:
1590 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
1591 e = 0;
1592 t->enabled = e;
1593 break;
1594 }
1595 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
1596 return JIM_OK;
1597 }
1598 break;
1599
1600 case JTAG_CMD_CGET:
1601 if( goi.argc < 2 ){
1602 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
1603 return JIM_ERR;
1604 }
1605
1606 {
1607 jtag_tap_t *t;
1608
1609 Jim_GetOpt_Obj(&goi, &o);
1610 t = jtag_tap_by_jim_obj( goi.interp, o );
1611 if( t == NULL ){
1612 return JIM_ERR;
1613 }
1614
1615 goi.isconfigure = 0;
1616 return jtag_tap_configure_cmd( &goi, t);
1617 }
1618 break;
1619
1620 case JTAG_CMD_CONFIGURE:
1621 if( goi.argc < 3 ){
1622 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
1623 return JIM_ERR;
1624 }
1625
1626 {
1627 jtag_tap_t *t;
1628
1629 Jim_GetOpt_Obj(&goi, &o);
1630 t = jtag_tap_by_jim_obj( goi.interp, o );
1631 if( t == NULL ){
1632 return JIM_ERR;
1633 }
1634
1635 goi.isconfigure = 1;
1636 return jtag_tap_configure_cmd( &goi, t);
1637 }
1638 }
1639
1640 return JIM_ERR;
1641 }
1642
1643 int jtag_register_commands(struct command_context_s *cmd_ctx)
1644 {
1645 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
1646
1647 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1648 COMMAND_CONFIG, "try to configure interface");
1649 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1650 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
1651 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1652 COMMAND_ANY, "set maximum jtag speed (if supported); "
1653 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
1654 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1655 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
1656 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1657 COMMAND_ANY,
1658 "[none/trst_only/srst_only/trst_and_srst] [srst_pulls_trst/trst_pulls_srst] [combined/separate] [trst_push_pull/trst_open_drain] [srst_push_pull/srst_open_drain]");
1659 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1660 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1661 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1662 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1663
1664 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1665 COMMAND_EXEC, "print current scan chain configuration");
1666
1667 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1668 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1669 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1670 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1671 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1672 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1673 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1674 register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
1675
1676 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1677 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1678 register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
1679 COMMAND_ANY, "verify value capture <enable|disable>");
1680 register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
1681 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
1682 return ERROR_OK;
1683 }
1684
1685 int jtag_interface_init(struct command_context_s *cmd_ctx)
1686 {
1687 if (jtag)
1688 return ERROR_OK;
1689
1690 if (!jtag_interface)
1691 {
1692 /* nothing was previously specified by "interface" command */
1693 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1694 return ERROR_JTAG_INVALID_INTERFACE;
1695 }
1696 if(hasKHz)
1697 {
1698 jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed);
1699 hasKHz = false;
1700 }
1701
1702 if (jtag_interface->init() != ERROR_OK)
1703 return ERROR_JTAG_INIT_FAILED;
1704
1705 jtag = jtag_interface;
1706 return ERROR_OK;
1707 }
1708
1709 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1710 {
1711 jtag_tap_t *tap;
1712 int retval;
1713
1714 LOG_DEBUG("Init JTAG chain");
1715
1716 tap = jtag_tap_next_enabled(NULL);
1717 if( tap == NULL ){
1718 LOG_ERROR("There are no enabled taps?");
1719 return ERROR_JTAG_INIT_FAILED;
1720 }
1721
1722 jtag_add_tlr();
1723 if ((retval=jtag_execute_queue())!=ERROR_OK)
1724 return retval;
1725
1726 /* examine chain first, as this could discover the real chain layout */
1727 if (jtag_examine_chain() != ERROR_OK)
1728 {
1729 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1730 }
1731
1732 if (jtag_validate_chain() != ERROR_OK)
1733 {
1734 LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
1735 }
1736
1737 return ERROR_OK;
1738 }
1739
1740 int jtag_interface_quit(void)
1741 {
1742 if (!jtag || !jtag->quit)
1743 return ERROR_OK;
1744
1745 // close the JTAG interface
1746 int result = jtag->quit();
1747 if (ERROR_OK != result)
1748 LOG_ERROR("failed: %d", result);
1749
1750 return ERROR_OK;
1751 }
1752
1753
1754 int jtag_init_reset(struct command_context_s *cmd_ctx)
1755 {
1756 int retval;
1757
1758 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1759 return retval;
1760
1761 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
1762
1763 /* Reset can happen after a power cycle.
1764 *
1765 * Ideally we would only assert TRST or run RESET before the target reset.
1766 *
1767 * However w/srst_pulls_trst, trst is asserted together with the target
1768 * reset whether we want it or not.
1769 *
1770 * NB! Some targets have JTAG circuitry disabled until a
1771 * trst & srst has been asserted.
1772 *
1773 * NB! here we assume nsrst/ntrst delay are sufficient!
1774 *
1775 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1776 *
1777 */
1778 jtag_add_reset(1, 0); /* RESET or TRST */
1779 if (jtag_reset_config & RESET_HAS_SRST)
1780 {
1781 jtag_add_reset(1, 1);
1782 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1783 jtag_add_reset(0, 1);
1784 }
1785 jtag_add_reset(0, 0);
1786 if ((retval = jtag_execute_queue()) != ERROR_OK)
1787 return retval;
1788
1789 /* Check that we can communication on the JTAG chain + eventually we want to
1790 * be able to perform enumeration only after OpenOCD has started
1791 * telnet and GDB server
1792 *
1793 * That would allow users to more easily perform any magic they need to before
1794 * reset happens.
1795 */
1796 return jtag_init_inner(cmd_ctx);
1797 }
1798
1799 int jtag_init(struct command_context_s *cmd_ctx)
1800 {
1801 int retval;
1802 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1803 return retval;
1804 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1805 {
1806 return ERROR_OK;
1807 }
1808 return jtag_init_reset(cmd_ctx);
1809 }
1810
1811 void jtag_set_speed_khz(unsigned khz)
1812 {
1813 speed_khz = khz;
1814 }
1815 unsigned jtag_get_speed_khz(void)
1816 {
1817 return speed_khz;
1818 }
1819
1820 static int default_khz(int khz, int *jtag_speed)
1821 {
1822 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1823 return ERROR_FAIL;
1824 }
1825
1826 static int default_speed_div(int speed, int *khz)
1827 {
1828 LOG_ERROR("Translation from jtag_speed to khz not implemented");
1829 return ERROR_FAIL;
1830 }
1831
1832 static int default_power_dropout(int *dropout)
1833 {
1834 *dropout=0; /* by default we can't detect power dropout */
1835 return ERROR_OK;
1836 }
1837
1838 static int default_srst_asserted(int *srst_asserted)
1839 {
1840 *srst_asserted=0; /* by default we can't detect srst asserted */
1841 return ERROR_OK;
1842 }
1843
1844 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1845 {
1846 int i;
1847 int retval;
1848
1849 /* check whether the interface is already configured */
1850 if (jtag_interface)
1851 {
1852 LOG_WARNING("Interface already configured, ignoring");
1853 return ERROR_OK;
1854 }
1855
1856 /* interface name is a mandatory argument */
1857 if (argc < 1 || args[0][0] == '\0')
1858 {
1859 return ERROR_COMMAND_SYNTAX_ERROR;
1860 }
1861
1862 for (i=0; jtag_interfaces[i]; i++)
1863 {
1864 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1865 {
1866 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
1867 {
1868 return retval;
1869 }
1870
1871 jtag_interface = jtag_interfaces[i];
1872
1873 if (jtag_interface->khz == NULL)
1874 {
1875 jtag_interface->khz = default_khz;
1876 }
1877 if (jtag_interface->speed_div == NULL)
1878 {
1879 jtag_interface->speed_div = default_speed_div;
1880 }
1881 if (jtag_interface->power_dropout == NULL)
1882 {
1883 jtag_interface->power_dropout = default_power_dropout;
1884 }
1885 if (jtag_interface->srst_asserted == NULL)
1886 {
1887 jtag_interface->srst_asserted = default_srst_asserted;
1888 }
1889
1890 return ERROR_OK;
1891 }
1892 }
1893
1894 /* no valid interface was found (i.e. the configuration option,
1895 * didn't match one of the compiled-in interfaces
1896 */
1897 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1898 LOG_ERROR("compiled-in jtag interfaces:");
1899 for (i = 0; jtag_interfaces[i]; i++)
1900 {
1901 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1902 }
1903
1904 return ERROR_JTAG_INVALID_INTERFACE;
1905 }
1906
1907 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1908 {
1909 int e;
1910 char buf[1024];
1911 Jim_Obj *newargs[ 10 ];
1912 /*
1913 * CONVERT SYNTAX
1914 * argv[-1] = command
1915 * argv[ 0] = ir length
1916 * argv[ 1] = ir capture
1917 * argv[ 2] = ir mask
1918 * argv[ 3] = not actually used by anything but in the docs
1919 */
1920
1921 if( argc < 4 ){
1922 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
1923 return ERROR_OK;
1924 }
1925 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
1926 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
1927 args[0],
1928 args[1],
1929 args[2] );
1930 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
1931 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
1932 command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
1933 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
1934
1935 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
1936 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
1937 sprintf( buf, "chip%d", jtag_tap_count() );
1938 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
1939 sprintf( buf, "tap%d", jtag_tap_count() );
1940 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
1941 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
1942 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
1943 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
1944 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
1945 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
1946 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
1947
1948 command_print( cmd_ctx, "NEW COMMAND:");
1949 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
1950 Jim_GetString( newargs[0], NULL ),
1951 Jim_GetString( newargs[1], NULL ),
1952 Jim_GetString( newargs[2], NULL ),
1953 Jim_GetString( newargs[3], NULL ),
1954 Jim_GetString( newargs[4], NULL ),
1955 Jim_GetString( newargs[5], NULL ),
1956 Jim_GetString( newargs[6], NULL ),
1957 Jim_GetString( newargs[7], NULL ),
1958 Jim_GetString( newargs[8], NULL ),
1959 Jim_GetString( newargs[9], NULL ) );
1960
1961 e = jim_jtag_command( interp, 10, newargs );
1962 if( e != JIM_OK ){
1963 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
1964 }
1965 return e;
1966 }
1967
1968 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1969 {
1970 jtag_tap_t *tap;
1971
1972 tap = jtag_all_taps();
1973 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
1974 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
1975
1976 while( tap ){
1977 u32 expected, expected_mask, cur_instr, ii;
1978 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
1979 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
1980 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
1981
1982 command_print(cmd_ctx,
1983 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
1984 tap->abs_chain_position,
1985 tap->dotted_name,
1986 tap->enabled ? 'Y' : 'n',
1987 tap->idcode,
1988 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
1989 tap->ir_length,
1990 expected,
1991 expected_mask,
1992 cur_instr);
1993
1994 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
1995 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
1996 tap->expected_ids[ii]);
1997 }
1998
1999 tap = tap->next_tap;
2000 }
2001
2002 return ERROR_OK;
2003 }
2004
2005 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2006 {
2007 int new_cfg = 0;
2008 int mask = 0;
2009
2010 if (argc < 1)
2011 return ERROR_COMMAND_SYNTAX_ERROR;
2012
2013 /* Original versions cared about the order of these tokens:
2014 * reset_config signals [combination [trst_type [srst_type]]]
2015 * They also clobbered the previous configuration even on error.
2016 *
2017 * Here we don't care about the order, and only change values
2018 * which have been explicitly specified.
2019 */
2020 for (; argc; argc--, args++) {
2021 int tmp = 0;
2022 int m;
2023
2024 /* signals */
2025 m = RESET_HAS_TRST | RESET_HAS_SRST;
2026 if (strcmp(*args, "none") == 0)
2027 tmp = RESET_NONE;
2028 else if (strcmp(*args, "trst_only") == 0)
2029 tmp = RESET_HAS_TRST;
2030 else if (strcmp(*args, "srst_only") == 0)
2031 tmp = RESET_HAS_SRST;
2032 else if (strcmp(*args, "trst_and_srst") == 0)
2033 tmp = RESET_HAS_TRST | RESET_HAS_SRST;
2034 else
2035 m = 0;
2036 if (mask & m) {
2037 LOG_ERROR("extra reset_config %s spec (%s)",
2038 "signal", *args);
2039 return ERROR_INVALID_ARGUMENTS;
2040 }
2041 if (m)
2042 goto next;
2043
2044 /* combination (options for broken wiring) */
2045 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2046 if (strcmp(*args, "separate") == 0)
2047 /* separate reset lines - default */;
2048 else if (strcmp(*args, "srst_pulls_trst") == 0)
2049 tmp |= RESET_SRST_PULLS_TRST;
2050 else if (strcmp(*args, "trst_pulls_srst") == 0)
2051 tmp |= RESET_TRST_PULLS_SRST;
2052 else if (strcmp(*args, "combined") == 0)
2053 tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2054 else
2055 m = 0;
2056 if (mask & m) {
2057 LOG_ERROR("extra reset_config %s spec (%s)",
2058 "combination", *args);
2059 return ERROR_INVALID_ARGUMENTS;
2060 }
2061 if (m)
2062 goto next;
2063
2064 /* trst_type (NOP without HAS_TRST) */
2065 m = RESET_TRST_OPEN_DRAIN;
2066 if (strcmp(*args, "trst_open_drain") == 0)
2067 tmp |= RESET_TRST_OPEN_DRAIN;
2068 else if (strcmp(*args, "trst_push_pull") == 0)
2069 /* push/pull from adapter - default */;
2070 else
2071 m = 0;
2072 if (mask & m) {
2073 LOG_ERROR("extra reset_config %s spec (%s)",
2074 "trst_type", *args);
2075 return ERROR_INVALID_ARGUMENTS;
2076 }
2077 if (m)
2078 goto next;
2079
2080 /* srst_type (NOP without HAS_SRST) */
2081 m |= RESET_SRST_PUSH_PULL;
2082 if (strcmp(*args, "srst_push_pull") == 0)
2083 tmp |= RESET_SRST_PUSH_PULL;
2084 else if (strcmp(*args, "srst_open_drain") == 0)
2085 /* open drain from adapter - default */;
2086 else
2087 m = 0;
2088 if (mask & m) {
2089 LOG_ERROR("extra reset_config %s spec (%s)",
2090 "srst_type", *args);
2091 return ERROR_INVALID_ARGUMENTS;
2092 }
2093 if (m)
2094 goto next;
2095
2096 /* caller provided nonsense; fail */
2097 LOG_ERROR("unknown reset_config flag (%s)", *args);
2098 return ERROR_INVALID_ARGUMENTS;
2099
2100 next:
2101 /* Remember the bits which were specified (mask)
2102 * and their new values (new_cfg).
2103 */
2104 mask |= m;
2105 new_cfg |= tmp;
2106 }
2107
2108 /* clear previous values of those bits, save new values */
2109 jtag_reset_config &= ~mask;
2110 jtag_reset_config |= new_cfg;
2111
2112 return ERROR_OK;
2113 }
2114
2115 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx,
2116 char *cmd, char **args, int argc)
2117 {
2118 if (argc != 1)
2119 {
2120 LOG_ERROR("jtag_nsrst_delay <ms> -- command requires one argument");
2121 return ERROR_COMMAND_SYNTAX_ERROR;
2122 }
2123 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
2124 return ERROR_OK;
2125 }
2126
2127 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx,
2128 char *cmd, char **args, int argc)
2129 {
2130 if (argc != 1)
2131 {
2132 LOG_ERROR("jtag_ntrst_delay <ms> -- command requires one argument");
2133 return ERROR_COMMAND_SYNTAX_ERROR;
2134 }
2135 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
2136 return ERROR_OK;
2137 }
2138
2139 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2140 {
2141 int retval = ERROR_OK;
2142
2143 if (argc > 1)
2144 return ERROR_COMMAND_SYNTAX_ERROR;
2145 if (argc == 1)
2146 {
2147 LOG_DEBUG("handle jtag speed");
2148
2149 int cur_speed = 0;
2150 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2151
2152 /* this command can be called during CONFIG,
2153 * in which case jtag isn't initialized */
2154 if (jtag)
2155 retval = jtag->speed(cur_speed);
2156 }
2157 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2158
2159 return retval;
2160 }
2161
2162 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2163 {
2164 if (argc > 1)
2165 return ERROR_COMMAND_SYNTAX_ERROR;
2166
2167 int retval = ERROR_OK;
2168 int cur_speed = 0;
2169 if (argc == 1)
2170 {
2171 LOG_DEBUG("handle jtag khz");
2172
2173 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
2174 if (jtag != NULL)
2175 {
2176 LOG_DEBUG("have interface set up");
2177 int speed_div1;
2178 retval = jtag->khz(jtag_get_speed_khz(), &speed_div1);
2179 if (ERROR_OK != retval)
2180 {
2181 jtag_set_speed_khz(0);
2182 return retval;
2183 }
2184 cur_speed = jtag_speed = speed_div1;
2185
2186 retval = jtag->speed(cur_speed);
2187 }
2188 else
2189 hasKHz = true;
2190 }
2191
2192 cur_speed = jtag_get_speed_khz();
2193 if (jtag != NULL)
2194 {
2195 retval = jtag->speed_div(jtag_speed, &cur_speed);
2196 if (ERROR_OK != retval)
2197 return retval;
2198 }
2199
2200 if (cur_speed)
2201 command_print(cmd_ctx, "%d kHz", cur_speed);
2202 else
2203 command_print(cmd_ctx, "RCLK - adaptive");
2204 return retval;
2205
2206 }
2207
2208 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2209 {
2210 int trst = -1;
2211 int srst = -1;
2212
2213 if (argc < 2)
2214 {
2215 return ERROR_COMMAND_SYNTAX_ERROR;
2216 }
2217
2218 if (args[0][0] == '1')
2219 trst = 1;
2220 else if (args[0][0] == '0')
2221 trst = 0;
2222 else
2223 {
2224 return ERROR_COMMAND_SYNTAX_ERROR;
2225 }
2226
2227 if (args[1][0] == '1')
2228 srst = 1;
2229 else if (args[1][0] == '0')
2230 srst = 0;
2231 else
2232 {
2233 return ERROR_COMMAND_SYNTAX_ERROR;
2234 }
2235
2236 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2237 return ERROR_JTAG_INIT_FAILED;
2238
2239 jtag_add_reset(trst, srst);
2240 jtag_execute_queue();
2241
2242 return ERROR_OK;
2243 }
2244
2245 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2246 {
2247 if (argc < 1)
2248 {
2249 return ERROR_COMMAND_SYNTAX_ERROR;
2250 }
2251
2252 jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
2253 jtag_execute_queue();
2254
2255 return ERROR_OK;
2256
2257 }
2258
2259 /*
2260 * For "irscan" or "drscan" commands, the "end" (really, "next") state
2261 * should be stable ... and *NOT* a shift state, otherwise free-running
2262 * jtag clocks could change the values latched by the update state.
2263 */
2264 static bool scan_is_safe(tap_state_t state)
2265 {
2266 switch (state)
2267 {
2268 case TAP_RESET:
2269 case TAP_IDLE:
2270 case TAP_DRPAUSE:
2271 case TAP_IRPAUSE:
2272 return true;
2273 default:
2274 return false;
2275 }
2276 }
2277
2278
2279 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2280 {
2281 int i;
2282 scan_field_t *fields;
2283 jtag_tap_t *tap;
2284 tap_state_t endstate;
2285
2286 if ((argc < 2) || (argc % 2))
2287 {
2288 return ERROR_COMMAND_SYNTAX_ERROR;
2289 }
2290
2291 /* optional "-endstate" "statename" at the end of the arguments,
2292 * so that e.g. IRPAUSE can let us load the data register before
2293 * entering RUN/IDLE to execute the instruction we load here.
2294 */
2295 endstate = TAP_IDLE;
2296
2297 if( argc >= 4 ){
2298 /* have at least one pair of numbers. */
2299 /* is last pair the magic text? */
2300 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
2301 const char *cpA;
2302 const char *cpS;
2303 cpA = args[ argc-1 ];
2304 for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
2305 cpS = tap_state_name( endstate );
2306 if( 0 == strcmp( cpA, cpS ) ){
2307 break;
2308 }
2309 }
2310 if( endstate >= TAP_NUM_STATES ){
2311 return ERROR_COMMAND_SYNTAX_ERROR;
2312 } else {
2313 if (!scan_is_safe(endstate))
2314 LOG_WARNING("irscan with unsafe "
2315 "endstate \"%s\"", cpA);
2316 /* found - remove the last 2 args */
2317 argc -= 2;
2318 }
2319 }
2320 }
2321
2322 int num_fields = argc / 2;
2323
2324 fields = malloc(sizeof(scan_field_t) * num_fields);
2325
2326 for (i = 0; i < num_fields; i++)
2327 {
2328 tap = jtag_tap_by_string( args[i*2] );
2329 if (tap==NULL)
2330 {
2331 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2332 return ERROR_FAIL;
2333 }
2334 int field_size = tap->ir_length;
2335 fields[i].tap = tap;
2336 fields[i].num_bits = field_size;
2337 fields[i].out_value = malloc(CEIL(field_size, 8));
2338 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2339 fields[i].in_value = NULL;
2340 }
2341
2342 /* did we have an endstate? */
2343 jtag_add_ir_scan(num_fields, fields, endstate);
2344
2345 int retval=jtag_execute_queue();
2346
2347 for (i = 0; i < num_fields; i++)
2348 free(fields[i].out_value);
2349
2350 free (fields);
2351
2352 return retval;
2353 }
2354
2355 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2356 {
2357 int retval;
2358 scan_field_t *fields;
2359 int num_fields;
2360 int field_count = 0;
2361 int i, e;
2362 jtag_tap_t *tap;
2363 tap_state_t endstate;
2364
2365 /* args[1] = device
2366 * args[2] = num_bits
2367 * args[3] = hex string
2368 * ... repeat num bits and hex string ...
2369 *
2370 * .. optionally:
2371 * args[N-2] = "-endstate"
2372 * args[N-1] = statename
2373 */
2374 if ((argc < 4) || ((argc % 2)!=0))
2375 {
2376 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2377 return JIM_ERR;
2378 }
2379
2380 endstate = TAP_IDLE;
2381
2382 /* validate arguments as numbers */
2383 e = JIM_OK;
2384 for (i = 2; i < argc; i+=2)
2385 {
2386 long bits;
2387 const char *cp;
2388
2389 e = Jim_GetLong(interp, args[i], &bits);
2390 /* If valid - try next arg */
2391 if( e == JIM_OK ){
2392 continue;
2393 }
2394
2395 /* Not valid.. are we at the end? */
2396 if ( ((i+2) != argc) ){
2397 /* nope, then error */
2398 return e;
2399 }
2400
2401 /* it could be: "-endstate FOO"
2402 * e.g. DRPAUSE so we can issue more instructions
2403 * before entering RUN/IDLE and executing them.
2404 */
2405
2406 /* get arg as a string. */
2407 cp = Jim_GetString( args[i], NULL );
2408 /* is it the magic? */
2409 if( 0 == strcmp( "-endstate", cp ) ){
2410 /* is the statename valid? */
2411 cp = Jim_GetString( args[i+1], NULL );
2412
2413 /* see if it is a valid state name */
2414 endstate = tap_state_by_name(cp);
2415 if( endstate < 0 ){
2416 /* update the error message */
2417 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
2418 } else {
2419 if (!scan_is_safe(endstate))
2420 LOG_WARNING("drscan with unsafe "
2421 "endstate \"%s\"", cp);
2422
2423 /* valid - so clear the error */
2424 e = JIM_OK;
2425 /* and remove the last 2 args */
2426 argc -= 2;
2427 }
2428 }
2429
2430 /* Still an error? */
2431 if( e != JIM_OK ){
2432 return e; /* too bad */
2433 }
2434 } /* validate args */
2435
2436 tap = jtag_tap_by_jim_obj( interp, args[1] );
2437 if( tap == NULL ){
2438 return JIM_ERR;
2439 }
2440
2441 num_fields=(argc-2)/2;
2442 fields = malloc(sizeof(scan_field_t) * num_fields);
2443 for (i = 2; i < argc; i+=2)
2444 {
2445 long bits;
2446 int len;
2447 const char *str;
2448
2449 Jim_GetLong(interp, args[i], &bits);
2450 str = Jim_GetString(args[i+1], &len);
2451
2452 fields[field_count].tap = tap;
2453 fields[field_count].num_bits = bits;
2454 fields[field_count].out_value = malloc(CEIL(bits, 8));
2455 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2456 fields[field_count].in_value = fields[field_count].out_value;
2457 field_count++;
2458 }
2459
2460 jtag_add_dr_scan(num_fields, fields, endstate);
2461
2462 retval = jtag_execute_queue();
2463 if (retval != ERROR_OK)
2464 {
2465 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2466 return JIM_ERR;
2467 }
2468
2469 field_count=0;
2470 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2471 for (i = 2; i < argc; i+=2)
2472 {
2473 long bits;
2474 char *str;
2475
2476 Jim_GetLong(interp, args[i], &bits);
2477 str = buf_to_str(fields[field_count].in_value, bits, 16);
2478 free(fields[field_count].out_value);
2479
2480 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2481 free(str);
2482 field_count++;
2483 }
2484
2485 Jim_SetResult(interp, list);
2486
2487 free(fields);
2488
2489 return JIM_OK;
2490 }
2491
2492
2493 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2494 {
2495 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
2496
2497 return JIM_OK;
2498 }
2499
2500
2501 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2502 {
2503 if (argc == 1)
2504 {
2505 if (strcmp(args[0], "enable") == 0)
2506 {
2507 jtag_verify_capture_ir = 1;
2508 }
2509 else if (strcmp(args[0], "disable") == 0)
2510 {
2511 jtag_verify_capture_ir = 0;
2512 } else
2513 {
2514 return ERROR_COMMAND_SYNTAX_ERROR;
2515 }
2516 } else if (argc != 0)
2517 {
2518 return ERROR_COMMAND_SYNTAX_ERROR;
2519 }
2520
2521 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2522
2523 return ERROR_OK;
2524 }
2525
2526 void jtag_set_verify(bool enable)
2527 {
2528 jtag_verify = enable;
2529 }
2530
2531 bool jtag_will_verify()
2532 {
2533 return jtag_verify;
2534 }
2535
2536 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2537 {
2538 if (argc > 1)
2539 return ERROR_COMMAND_SYNTAX_ERROR;
2540
2541 if (argc == 1)
2542 {
2543 if (strcmp(args[0], "enable") == 0)
2544 jtag_set_verify(true);
2545 else if (strcmp(args[0], "disable") == 0)
2546 jtag_set_verify(false);
2547 else
2548 return ERROR_COMMAND_SYNTAX_ERROR;
2549 }
2550
2551 const char *status = jtag_will_verify() ? "enabled": "disabled";
2552 command_print(cmd_ctx, "verify jtag capture is %s", status);
2553
2554 return ERROR_OK;
2555 }
2556
2557
2558 int jtag_power_dropout(int *dropout)
2559 {
2560 return jtag->power_dropout(dropout);
2561 }
2562
2563 int jtag_srst_asserted(int *srst_asserted)
2564 {
2565 return jtag->srst_asserted(srst_asserted);
2566 }
2567
2568 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2569 {
2570 jtag_tap_event_action_t * jteap;
2571 int done;
2572
2573 jteap = tap->event_action;
2574
2575 done = 0;
2576 while (jteap) {
2577 if (jteap->event == e) {
2578 done = 1;
2579 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2580 tap->dotted_name,
2581 e,
2582 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2583 Jim_GetString(jteap->body, NULL) );
2584 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2585 Jim_PrintErrorMessage(interp);
2586 }
2587 }
2588
2589 jteap = jteap->next;
2590 }
2591
2592 if (!done) {
2593 LOG_DEBUG( "event %d %s - no action",
2594 e,
2595 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2596 }
2597 }
2598
2599 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2600 {
2601 if (argc > 1)
2602 return ERROR_COMMAND_SYNTAX_ERROR;
2603
2604 if (argc == 1)
2605 {
2606 bool use_new_table;
2607 if (strcmp(args[0], "short") == 0)
2608 use_new_table = true;
2609 else if (strcmp(args[0], "long") == 0)
2610 use_new_table = false;
2611 else
2612 return ERROR_COMMAND_SYNTAX_ERROR;
2613
2614 tap_use_new_tms_table(use_new_table);
2615 }
2616
2617 command_print(cmd_ctx, "tms sequence is %s",
2618 tap_uses_new_tms_table() ? "short": "long");
2619
2620 return ERROR_OK;
2621 }
2622
2623 /**
2624 * Function jtag_add_statemove
2625 * moves from the current state to the goal \a state. This needs
2626 * to be handled according to the xsvf spec, see the XSTATE command
2627 * description.
2628 */
2629 int jtag_add_statemove(tap_state_t goal_state)
2630 {
2631 int retval = ERROR_OK;
2632
2633 tap_state_t moves[8];
2634 tap_state_t cur_state = cmd_queue_cur_state;
2635 int i;
2636 int tms_bits;
2637 int tms_count;
2638
2639 LOG_DEBUG( "cur_state=%s goal_state=%s",
2640 tap_state_name(cur_state),
2641 tap_state_name(goal_state) );
2642
2643
2644 /* From the XSVF spec, pertaining to XSTATE:
2645
2646 For special states known as stable states (Test-Logic-Reset,
2647 Run-Test/Idle, Pause-DR, Pause- IR), an XSVF interpreter follows
2648 predefined TAP state paths when the starting state is a stable state and
2649 when the XSTATE specifies a new stable state (see the STATE command in
2650 the [Ref 5] for the TAP state paths between stable states). For
2651 non-stable states, XSTATE should specify a state that is only one TAP
2652 state transition distance from the current TAP state to avoid undefined
2653 TAP state paths. A sequence of multiple XSTATE commands can be issued to
2654 transition the TAP through a specific state path.
2655 */
2656
2657 if (goal_state==cur_state )
2658 ; /* nothing to do */
2659
2660 else if( goal_state==TAP_RESET )
2661 {
2662 jtag_add_tlr();
2663 }
2664
2665 else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) )
2666 {
2667 /* note: unless tms_bits holds a path that agrees with [Ref 5] in above
2668 spec, then this code is not fully conformant to the xsvf spec. This
2669 puts a burden on tap_get_tms_path() function from the xsvf spec.
2670 If in doubt, you should confirm that that burden is being met.
2671 */
2672
2673 tms_bits = tap_get_tms_path(cur_state, goal_state);
2674 tms_count = tap_get_tms_path_len(cur_state, goal_state);
2675
2676 assert( (unsigned) tms_count < DIM(moves) );
2677
2678 for (i=0; i<tms_count; i++, tms_bits>>=1)
2679 {
2680 bool bit = tms_bits & 1;
2681
2682 cur_state = tap_state_transition(cur_state, bit);
2683 moves[i] = cur_state;
2684 }
2685
2686 jtag_add_pathmove(tms_count, moves);
2687 }
2688
2689 /* else state must be immediately reachable in one clock cycle, and does not
2690 need to be a stable state.
2691 */
2692 else if( tap_state_transition(cur_state, true) == goal_state
2693 || tap_state_transition(cur_state, false) == goal_state )
2694 {
2695 /* move a single state */
2696 moves[0] = goal_state;
2697 jtag_add_pathmove( 1, moves );
2698 }
2699
2700 else
2701 {
2702 retval = ERROR_FAIL;
2703 }
2704
2705 return retval;
2706 }
2707
2708 void jtag_set_nsrst_delay(unsigned delay)
2709 {
2710 jtag_nsrst_delay = delay;
2711 }
2712 unsigned jtag_get_nsrst_delay(void)
2713 {
2714 return jtag_nsrst_delay;
2715 }
2716 void jtag_set_ntrst_delay(unsigned delay)
2717 {
2718 jtag_ntrst_delay = delay;
2719 }
2720 unsigned jtag_get_ntrst_delay(void)
2721 {
2722 return jtag_ntrst_delay;
2723 }
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1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=..              |
|+o..   .         |
|*.o   . .        |
|+B . . .         |
|Bo. = o S        |
|Oo.+ + =         |
|oB=.* = . o      |
| =+=.+   + E     |
|. .=o   . o      |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)