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Factoring of jtag_examine_chain for maintainability:
[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 #endif
101
102 #if BUILD_PARPORT == 1
103 extern jtag_interface_t parport_interface;
104 #endif
105
106 #if BUILD_DUMMY == 1
107 extern jtag_interface_t dummy_interface;
108 #endif
109
110 #if BUILD_FT2232_FTD2XX == 1
111 extern jtag_interface_t ft2232_interface;
112 #endif
113
114 #if BUILD_FT2232_LIBFTDI == 1
115 extern jtag_interface_t ft2232_interface;
116 #endif
117
118 #if BUILD_AMTJTAGACCEL == 1
119 extern jtag_interface_t amt_jtagaccel_interface;
120 #endif
121
122 #if BUILD_EP93XX == 1
123 extern jtag_interface_t ep93xx_interface;
124 #endif
125
126 #if BUILD_AT91RM9200 == 1
127 extern jtag_interface_t at91rm9200_interface;
128 #endif
129
130 #if BUILD_GW16012 == 1
131 extern jtag_interface_t gw16012_interface;
132 #endif
133
134 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
135 extern jtag_interface_t presto_interface;
136 #endif
137
138 #if BUILD_USBPROG == 1
139 extern jtag_interface_t usbprog_interface;
140 #endif
141
142 #if BUILD_JLINK == 1
143 extern jtag_interface_t jlink_interface;
144 #endif
145
146 #if BUILD_VSLLINK == 1
147 extern jtag_interface_t vsllink_interface;
148 #endif
149
150 #if BUILD_RLINK == 1
151 extern jtag_interface_t rlink_interface;
152 #endif
153
154 #if BUILD_ARMJTAGEW == 1
155 extern jtag_interface_t armjtagew_interface;
156 #endif
157
158 jtag_interface_t *jtag_interfaces[] = {
159 #if BUILD_ECOSBOARD == 1
160 &zy1000_interface,
161 #endif
162 #if BUILD_PARPORT == 1
163 &parport_interface,
164 #endif
165 #if BUILD_DUMMY == 1
166 &dummy_interface,
167 #endif
168 #if BUILD_FT2232_FTD2XX == 1
169 &ft2232_interface,
170 #endif
171 #if BUILD_FT2232_LIBFTDI == 1
172 &ft2232_interface,
173 #endif
174 #if BUILD_AMTJTAGACCEL == 1
175 &amt_jtagaccel_interface,
176 #endif
177 #if BUILD_EP93XX == 1
178 &ep93xx_interface,
179 #endif
180 #if BUILD_AT91RM9200 == 1
181 &at91rm9200_interface,
182 #endif
183 #if BUILD_GW16012 == 1
184 &gw16012_interface,
185 #endif
186 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
187 &presto_interface,
188 #endif
189 #if BUILD_USBPROG == 1
190 &usbprog_interface,
191 #endif
192 #if BUILD_JLINK == 1
193 &jlink_interface,
194 #endif
195 #if BUILD_VSLLINK == 1
196 &vsllink_interface,
197 #endif
198 #if BUILD_RLINK == 1
199 &rlink_interface,
200 #endif
201 #if BUILD_ARMJTAGEW == 1
202 &armjtagew_interface,
203 #endif
204 NULL,
205 };
206
207 struct jtag_interface_s *jtag = NULL;
208
209 /* configuration */
210 static jtag_interface_t *jtag_interface = NULL;
211 int jtag_speed = 0;
212
213 /* jtag commands */
214 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
215 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
216 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
217 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
218 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
219 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
220 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
221
222 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
223
224 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
225 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
226 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
227 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
228 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
229 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args);
230
231 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
232 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
233 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
234
235 jtag_tap_t *jtag_all_taps(void)
236 {
237 return __jtag_all_taps;
238 };
239
240 int jtag_tap_count(void)
241 {
242 return jtag_num_taps;
243 }
244
245 int jtag_tap_count_enabled(void)
246 {
247 jtag_tap_t *t;
248 int n;
249
250 n = 0;
251 t = jtag_all_taps();
252 while(t){
253 if( t->enabled ){
254 n++;
255 }
256 t = t->next_tap;
257 }
258 return n;
259 }
260
261 /// Append a new TAP to the chain of all taps.
262 static void jtag_tap_add(struct jtag_tap_s *t)
263 {
264 t->abs_chain_position = jtag_num_taps++;
265
266 jtag_tap_t **tap = &__jtag_all_taps;
267 while(*tap != NULL)
268 tap = &(*tap)->next_tap;
269 *tap = t;
270 }
271
272 jtag_tap_t *jtag_tap_by_string( const char *s )
273 {
274 jtag_tap_t *t;
275 char *cp;
276
277 t = jtag_all_taps();
278 /* try name first */
279 while(t){
280 if( 0 == strcmp( t->dotted_name, s ) ){
281 break;
282 } else {
283 t = t->next_tap;
284 }
285 }
286 /* backup plan is by number */
287 if( t == NULL ){
288 /* ok - is "s" a number? */
289 int n;
290 n = strtol( s, &cp, 0 );
291 if( (s != cp) && (*cp == 0) ){
292 /* Then it is... */
293 t = jtag_tap_by_abs_position(n);
294 }
295 }
296 return t;
297 }
298
299 jtag_tap_t * jtag_tap_by_jim_obj( Jim_Interp *interp, Jim_Obj *o )
300 {
301 jtag_tap_t *t;
302 const char *cp;
303
304 cp = Jim_GetString( o, NULL );
305 if(cp == NULL){
306 cp = "(unknown)";
307 t = NULL;
308 } else {
309 t = jtag_tap_by_string( cp );
310 }
311 if( t == NULL ){
312 Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
313 }
314 return t;
315 }
316
317 /* returns a pointer to the n-th device in the scan chain */
318 jtag_tap_t * jtag_tap_by_abs_position( int n )
319 {
320 int orig_n;
321 jtag_tap_t *t;
322
323 orig_n = n;
324 t = jtag_all_taps();
325
326 while( t && (n > 0)) {
327 n--;
328 t = t->next_tap;
329 }
330 return t;
331 }
332
333 const char *jtag_tap_name(const jtag_tap_t *tap)
334 {
335 return (tap == NULL) ? "(unknown)" : tap->dotted_name;
336 }
337
338
339 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
340 {
341 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
342
343 if (callback == NULL)
344 {
345 return ERROR_INVALID_ARGUMENTS;
346 }
347
348 if (*callbacks_p)
349 {
350 while ((*callbacks_p)->next)
351 callbacks_p = &((*callbacks_p)->next);
352 callbacks_p = &((*callbacks_p)->next);
353 }
354
355 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
356 (*callbacks_p)->callback = callback;
357 (*callbacks_p)->priv = priv;
358 (*callbacks_p)->next = NULL;
359
360 return ERROR_OK;
361 }
362
363 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
364 {
365 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
366
367 if (callback == NULL)
368 {
369 return ERROR_INVALID_ARGUMENTS;
370 }
371
372 while (*callbacks_p)
373 {
374 jtag_event_callback_t **next = &((*callbacks_p)->next);
375 if ((*callbacks_p)->callback == callback)
376 {
377 free(*callbacks_p);
378 *callbacks_p = *next;
379 }
380 callbacks_p = next;
381 }
382
383 return ERROR_OK;
384 }
385
386 int jtag_call_event_callbacks(enum jtag_event event)
387 {
388 jtag_event_callback_t *callback = jtag_event_callbacks;
389
390 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
391
392 while (callback)
393 {
394 callback->callback(event, callback->priv);
395 callback = callback->next;
396 }
397
398 return ERROR_OK;
399 }
400
401 static void jtag_checks(void)
402 {
403 assert(jtag_trst == 0);
404 }
405
406 static void jtag_prelude(tap_state_t state)
407 {
408 jtag_checks();
409
410 assert(state!=TAP_INVALID);
411
412 cmd_queue_cur_state = state;
413 }
414
415 void jtag_alloc_in_value32(scan_field_t *field)
416 {
417 interface_jtag_alloc_in_value32(field);
418 }
419
420 void jtag_add_ir_scan_noverify(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
421 {
422 int retval;
423 jtag_prelude(state);
424
425 retval=interface_jtag_add_ir_scan(in_num_fields, in_fields, state);
426 if (retval!=ERROR_OK)
427 jtag_error=retval;
428
429 }
430
431
432 /**
433 * Generate an IR SCAN with a list of scan fields with one entry for each enabled TAP.
434 *
435 * If the input field list contains an instruction value for a TAP then that is used
436 * otherwise the TAP is set to bypass.
437 *
438 * TAPs for which no fields are passed are marked as bypassed for subsequent DR SCANs.
439 *
440 */
441 void jtag_add_ir_scan(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
442 {
443 if (jtag_verify&&jtag_verify_capture_ir)
444 {
445 /* 8 x 32 bit id's is enough for all invocations */
446
447 for (int j = 0; j < in_num_fields; j++)
448 {
449 /* if we are to run a verification of the ir scan, we need to get the input back.
450 * We may have to allocate space if the caller didn't ask for the input back.
451 */
452 in_fields[j].check_value=in_fields[j].tap->expected;
453 in_fields[j].check_mask=in_fields[j].tap->expected_mask;
454 }
455 jtag_add_scan_check(jtag_add_ir_scan_noverify, in_num_fields, in_fields, state);
456 } else
457 {
458 jtag_add_ir_scan_noverify(in_num_fields, in_fields, state);
459 }
460 }
461
462 /**
463 * Duplicate the scan fields passed into the function into an IR SCAN command
464 *
465 * This function assumes that the caller handles extra fields for bypassed TAPs
466 *
467 */
468 void jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
469 {
470 int retval;
471
472 jtag_prelude(state);
473
474 retval=interface_jtag_add_plain_ir_scan(in_num_fields, in_fields, state);
475 if (retval!=ERROR_OK)
476 jtag_error=retval;
477 }
478
479 void jtag_add_callback(jtag_callback1_t f, u8 *in)
480 {
481 interface_jtag_add_callback(f, in);
482 }
483
484 void jtag_add_callback4(jtag_callback_t f, u8 *in,
485 jtag_callback_data_t data1, jtag_callback_data_t data2,
486 jtag_callback_data_t data3)
487 {
488 interface_jtag_add_callback4(f, in, data1, data2, data3);
489 }
490
491 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits);
492
493 static int jtag_check_value_mask_callback(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
494 {
495 return jtag_check_value_inner(in, (u8 *)data1, (u8 *)data2, (int)data3);
496 }
497
498 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
499 int in_num_fields, scan_field_t *in_fields, tap_state_t state)
500 {
501 for (int i = 0; i < in_num_fields; i++)
502 {
503 struct scan_field_s *field = &in_fields[i];
504 field->allocated = 0;
505 field->modified = 0;
506 if (field->check_value || field->in_value)
507 continue;
508 interface_jtag_add_scan_check_alloc(field);
509 field->modified = 1;
510 }
511
512 jtag_add_scan(in_num_fields, in_fields, state);
513
514 for (int i = 0; i < in_num_fields; i++)
515 {
516 if ((in_fields[i].check_value != NULL) && (in_fields[i].in_value != NULL))
517 {
518 /* this is synchronous for a minidriver */
519 jtag_add_callback4(jtag_check_value_mask_callback, in_fields[i].in_value,
520 (jtag_callback_data_t)in_fields[i].check_value,
521 (jtag_callback_data_t)in_fields[i].check_mask,
522 (jtag_callback_data_t)in_fields[i].num_bits);
523 }
524 if (in_fields[i].allocated)
525 {
526 free(in_fields[i].in_value);
527 }
528 if (in_fields[i].modified)
529 {
530 in_fields[i].in_value = NULL;
531 }
532 }
533 }
534
535 void jtag_add_dr_scan_check(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
536 {
537 if (jtag_verify)
538 {
539 jtag_add_scan_check(jtag_add_dr_scan, in_num_fields, in_fields, state);
540 } else
541 {
542 jtag_add_dr_scan(in_num_fields, in_fields, state);
543 }
544 }
545
546
547 /**
548 * Generate a DR SCAN using the fields passed to the function
549 *
550 * For not bypassed TAPs the function checks in_fields and uses fields specified there.
551 * For bypassed TAPs the function generates a dummy 1bit field.
552 *
553 * The bypass status of TAPs is set by jtag_add_ir_scan().
554 *
555 */
556 void jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
557 {
558 int retval;
559
560 jtag_prelude(state);
561
562 retval=interface_jtag_add_dr_scan(in_num_fields, in_fields, state);
563 if (retval!=ERROR_OK)
564 jtag_error=retval;
565 }
566
567
568
569 /**
570 * Duplicate the scan fields passed into the function into a DR SCAN command
571 *
572 * This function assumes that the caller handles extra fields for bypassed TAPs
573 *
574 */
575 void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
576 {
577 int retval;
578
579 jtag_prelude(state);
580
581 retval=interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, state);
582 if (retval!=ERROR_OK)
583 jtag_error=retval;
584 }
585
586 void jtag_add_dr_out(jtag_tap_t* tap,
587 int num_fields, const int* num_bits, const u32* value,
588 tap_state_t end_state)
589 {
590 assert(end_state != TAP_INVALID);
591
592 cmd_queue_cur_state = end_state;
593
594 interface_jtag_add_dr_out(tap,
595 num_fields, num_bits, value,
596 end_state);
597 }
598
599 void jtag_add_tlr(void)
600 {
601 jtag_prelude(TAP_RESET);
602
603 int retval;
604 retval=interface_jtag_add_tlr();
605 if (retval!=ERROR_OK)
606 jtag_error=retval;
607
608 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
609 }
610
611 void jtag_add_pathmove(int num_states, const tap_state_t *path)
612 {
613 tap_state_t cur_state = cmd_queue_cur_state;
614 int i;
615 int retval;
616
617 /* the last state has to be a stable state */
618 if (!tap_is_state_stable(path[num_states - 1]))
619 {
620 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
621 exit(-1);
622 }
623
624 for (i=0; i<num_states; i++)
625 {
626 if (path[i] == TAP_RESET)
627 {
628 LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
629 exit(-1);
630 }
631
632 if ( tap_state_transition(cur_state, true) != path[i]
633 && tap_state_transition(cur_state, false) != path[i])
634 {
635 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[i]));
636 exit(-1);
637 }
638 cur_state = path[i];
639 }
640
641 jtag_checks();
642
643 retval = interface_jtag_add_pathmove(num_states, path);
644 cmd_queue_cur_state = path[num_states - 1];
645 if (retval!=ERROR_OK)
646 jtag_error=retval;
647 }
648
649 void jtag_add_runtest(int num_cycles, tap_state_t state)
650 {
651 int retval;
652
653 jtag_prelude(state);
654
655 /* executed by sw or hw fifo */
656 retval=interface_jtag_add_runtest(num_cycles, state);
657 if (retval!=ERROR_OK)
658 jtag_error=retval;
659 }
660
661
662 void jtag_add_clocks( int num_cycles )
663 {
664 int retval;
665
666 if( !tap_is_state_stable(cmd_queue_cur_state) )
667 {
668 LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
669 tap_state_name(cmd_queue_cur_state) );
670 jtag_error = ERROR_JTAG_NOT_STABLE_STATE;
671 return;
672 }
673
674 if( num_cycles > 0 )
675 {
676 jtag_checks();
677
678 retval = interface_jtag_add_clocks(num_cycles);
679 if (retval != ERROR_OK)
680 jtag_error=retval;
681 }
682 }
683
684 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
685 {
686 int trst_with_tlr = 0;
687 int retval;
688
689 /* FIX!!! there are *many* different cases here. A better
690 * approach is needed for legal combinations of transitions...
691 */
692 if ((jtag_reset_config & RESET_HAS_SRST)&&
693 (jtag_reset_config & RESET_HAS_TRST)&&
694 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
695 {
696 if (((req_tlr_or_trst&&!jtag_trst)||
697 (!req_tlr_or_trst&&jtag_trst))&&
698 ((req_srst&&!jtag_srst)||
699 (!req_srst&&jtag_srst)))
700 {
701 /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
702 //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
703 }
704 }
705
706 /* Make sure that jtag_reset_config allows the requested reset */
707 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
708 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
709 {
710 LOG_ERROR("BUG: requested reset would assert trst");
711 jtag_error=ERROR_FAIL;
712 return;
713 }
714
715 /* if TRST pulls SRST, we reset with TAP T-L-R */
716 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
717 {
718 trst_with_tlr = 1;
719 }
720
721 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
722 {
723 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
724 jtag_error=ERROR_FAIL;
725 return;
726 }
727
728 if (req_tlr_or_trst)
729 {
730 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
731 {
732 jtag_trst = 1;
733 } else
734 {
735 trst_with_tlr = 1;
736 }
737 } else
738 {
739 jtag_trst = 0;
740 }
741
742 jtag_srst = req_srst;
743
744 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
745 if (retval!=ERROR_OK)
746 {
747 jtag_error=retval;
748 return;
749 }
750 jtag_execute_queue();
751
752 if (jtag_srst)
753 {
754 LOG_DEBUG("SRST line asserted");
755 }
756 else
757 {
758 LOG_DEBUG("SRST line released");
759 if (jtag_nsrst_delay)
760 jtag_add_sleep(jtag_nsrst_delay * 1000);
761 }
762
763 if (trst_with_tlr)
764 {
765 LOG_DEBUG("JTAG reset with RESET instead of TRST");
766 jtag_set_end_state(TAP_RESET);
767 jtag_add_tlr();
768 return;
769 }
770
771 if (jtag_trst)
772 {
773 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
774 * and inform possible listeners about this
775 */
776 LOG_DEBUG("TRST line asserted");
777 tap_set_state(TAP_RESET);
778 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
779 }
780 else
781 {
782 if (jtag_ntrst_delay)
783 jtag_add_sleep(jtag_ntrst_delay * 1000);
784 }
785 }
786
787 tap_state_t jtag_set_end_state(tap_state_t state)
788 {
789 if ((state == TAP_DRSHIFT)||(state == TAP_IRSHIFT))
790 {
791 LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field");
792 }
793
794 if (state!=TAP_INVALID)
795 cmd_queue_end_state = state;
796 return cmd_queue_end_state;
797 }
798
799 tap_state_t jtag_get_end_state(void)
800 {
801 return cmd_queue_end_state;
802 }
803
804 void jtag_add_sleep(u32 us)
805 {
806 keep_alive(); /* we might be running on a very slow JTAG clk */
807 int retval=interface_jtag_add_sleep(us);
808 if (retval!=ERROR_OK)
809 jtag_error=retval;
810 return;
811 }
812
813 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits)
814 {
815 int retval = ERROR_OK;
816
817 int compare_failed = 0;
818
819 if (in_check_mask)
820 compare_failed = buf_cmp_mask(captured, in_check_value, in_check_mask, num_bits);
821 else
822 compare_failed = buf_cmp(captured, in_check_value, num_bits);
823
824 if (compare_failed){
825 /* An error handler could have caught the failing check
826 * only report a problem when there wasn't a handler, or if the handler
827 * acknowledged the error
828 */
829 /*
830 LOG_WARNING("TAP %s:",
831 jtag_tap_name(field->tap));
832 */
833 if (compare_failed)
834 {
835 char *captured_char = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
836 char *in_check_value_char = buf_to_str(in_check_value, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
837
838 if (in_check_mask)
839 {
840 char *in_check_mask_char;
841 in_check_mask_char = buf_to_str(in_check_mask, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
842 LOG_WARNING("value captured during scan didn't pass the requested check:");
843 LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
844 captured_char, in_check_value_char, in_check_mask_char);
845 free(in_check_mask_char);
846 }
847 else
848 {
849 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);
850 }
851
852 free(captured_char);
853 free(in_check_value_char);
854
855 retval = ERROR_JTAG_QUEUE_FAILED;
856 }
857
858 }
859 return retval;
860 }
861
862 void jtag_check_value_mask(scan_field_t *field, u8 *value, u8 *mask)
863 {
864 assert(field->in_value != NULL);
865
866 if (value==NULL)
867 {
868 /* no checking to do */
869 return;
870 }
871
872 jtag_execute_queue_noclear();
873
874 int retval=jtag_check_value_inner(field->in_value, value, mask, field->num_bits);
875 jtag_set_error(retval);
876 }
877
878
879
880 int default_interface_jtag_execute_queue(void)
881 {
882 if (NULL == jtag)
883 {
884 LOG_ERROR("No JTAG interface configured yet. "
885 "Issue 'init' command in startup scripts "
886 "before communicating with targets.");
887 return ERROR_FAIL;
888 }
889
890 return jtag->execute_queue();
891 }
892
893 void jtag_execute_queue_noclear(void)
894 {
895 /* each flush can take as much as 1-2ms on high bandwidth low latency interfaces.
896 * E.g. a JTAG over TCP/IP or USB....
897 */
898 jtag_flush_queue_count++;
899
900 int retval=interface_jtag_execute_queue();
901 /* we keep the first error */
902 if ((jtag_error==ERROR_OK)&&(retval!=ERROR_OK))
903 {
904 jtag_error=retval;
905 }
906 }
907
908 int jtag_get_flush_queue_count(void)
909 {
910 return jtag_flush_queue_count;
911 }
912
913 int jtag_execute_queue(void)
914 {
915 int retval;
916 jtag_execute_queue_noclear();
917 retval=jtag_error;
918 jtag_error=ERROR_OK;
919 return retval;
920 }
921
922 static int jtag_reset_callback(enum jtag_event event, void *priv)
923 {
924 jtag_tap_t *tap = priv;
925
926 LOG_DEBUG("-");
927
928 if (event == JTAG_TRST_ASSERTED)
929 {
930 buf_set_ones(tap->cur_instr, tap->ir_length);
931 tap->bypass = 1;
932 }
933
934 return ERROR_OK;
935 }
936
937 void jtag_sleep(u32 us)
938 {
939 alive_sleep(us/1000);
940 }
941
942 /// maximum number of JTAG devices expected in the chain
943 #define JTAG_MAX_CHAIN_SIZE 20
944
945 #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
946 #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
947 #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
948
949 static int jtag_examine_chain_execute(u8 *idcode_buffer, unsigned num_idcode)
950 {
951 scan_field_t field = {
952 .tap = NULL,
953 .num_bits = num_idcode * 32,
954 .out_value = idcode_buffer,
955 .in_value = idcode_buffer,
956 };
957
958 // initialize to the end of chain ID value
959 for (unsigned i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
960 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
961
962 jtag_add_plain_dr_scan(1, &field, TAP_RESET);
963 return jtag_execute_queue();
964 }
965
966 static bool jtag_examine_chain_check(u8 *idcodes, unsigned count)
967 {
968 u8 zero_check = 0x0;
969 u8 one_check = 0xff;
970
971 for (unsigned i = 0; i < count * 4; i++)
972 {
973 zero_check |= idcodes[i];
974 one_check &= idcodes[i];
975 }
976
977 /* if there wasn't a single non-zero bit or if all bits were one,
978 * the scan is not valid */
979 if (zero_check == 0x00 || one_check == 0xff)
980 {
981 LOG_ERROR("JTAG communication failure: check connection, "
982 "JTAG interface, target power etc.");
983 return false;
984 }
985 return true;
986 }
987
988 static void jtag_examine_chain_display(enum log_levels level, const char *msg,
989 const char *name, u32 idcode)
990 {
991 log_printf_lf(level, __FILE__, __LINE__, __FUNCTION__,
992 "JTAG tap: %s %16.16s: 0x%08x "
993 "(mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
994 name, msg, idcode,
995 EXTRACT_MFG(idcode), EXTRACT_PART(idcode), EXTRACT_VER(idcode) );
996 }
997
998 static bool jtag_idcode_is_final(u32 idcode)
999 {
1000 return idcode == 0x000000FF || idcode == 0xFFFFFFFF;
1001 }
1002
1003 /**
1004 * This helper checks that remaining bits in the examined chain data are
1005 * all as expected, but a single JTAG device requires only 64 bits to be
1006 * read back correctly. This can help identify and diagnose problems
1007 * with the JTAG chain earlier, gives more helpful/explicit error messages.
1008 */
1009 static void jtag_examine_chain_end(u8 *idcodes, unsigned count, unsigned max)
1010 {
1011 bool triggered = false;
1012 for ( ; count < max - 31; count += 32)
1013 {
1014 u32 idcode = buf_get_u32(idcodes, count, 32);
1015 // do not trigger the warning if the data looks good
1016 if (!triggered && jtag_idcode_is_final(idcode))
1017 continue;
1018 LOG_WARNING("Unexpected idcode after end of chain: %d 0x%08x",
1019 count, idcode);
1020 triggered = true;
1021 }
1022 }
1023
1024 /* Try to examine chain layout according to IEEE 1149.1 §12
1025 */
1026 static int jtag_examine_chain(void)
1027 {
1028 jtag_tap_t *tap;
1029 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1030 int bit_count;
1031 int device_count = 0;
1032
1033 jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE);
1034
1035 if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE))
1036 return ERROR_JTAG_INIT_FAILED;
1037
1038 /* point at the 1st tap */
1039 tap = jtag_tap_next_enabled(NULL);
1040 if (tap == NULL)
1041 {
1042 LOG_ERROR("JTAG: No taps enabled?");
1043 return ERROR_JTAG_INIT_FAILED;
1044 }
1045
1046 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1047 {
1048 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1049 if ((idcode & 1) == 0)
1050 {
1051 /* LSB must not be 0, this indicates a device in bypass */
1052 LOG_WARNING("Tap/Device does not have IDCODE");
1053 idcode = 0;
1054
1055 bit_count += 1;
1056 }
1057 else
1058 {
1059 /*
1060 * End of chain (invalid manufacturer ID) some devices, such
1061 * as AVR will output all 1's instead of TDI input value at
1062 * end of chain.
1063 */
1064 if (jtag_idcode_is_final(idcode))
1065 {
1066 jtag_examine_chain_end(idcode_buffer,
1067 bit_count + 32, JTAG_MAX_CHAIN_SIZE * 32);
1068 break;
1069 }
1070
1071 jtag_examine_chain_display(LOG_LVL_INFO, "tap/device found",
1072 tap ? tap->dotted_name : "(not-named)",
1073 idcode);
1074
1075 bit_count += 32;
1076 }
1077 device_count++;
1078 if (!tap)
1079 continue;
1080
1081 tap->idcode = idcode;
1082
1083 if (0 == tap->expected_ids_cnt)
1084 {
1085 /// @todo Enable LOG_INFO to ask for reports about unknown TAP IDs.
1086 #if 0
1087 LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode)
1088 LOG_INFO("Please report the chip name and reported ID code to the openocd project");
1089 #endif
1090 tap = jtag_tap_next_enabled(tap);
1091 continue;
1092 }
1093 /* Loop over the expected identification codes and test for a match */
1094 u8 ii;
1095 for (ii = 0; ii < tap->expected_ids_cnt; ii++)
1096 {
1097 if (tap->idcode == tap->expected_ids[ii])
1098 break;
1099 }
1100
1101 /* If none of the expected ids matched, log an error */
1102 if (ii != tap->expected_ids_cnt)
1103 {
1104 LOG_INFO("JTAG Tap/device matched");
1105 tap = jtag_tap_next_enabled(tap);
1106 continue;
1107 }
1108 jtag_examine_chain_display(LOG_LVL_ERROR, "got",
1109 tap->dotted_name, tap->idcode);
1110 for (ii = 0; ii < tap->expected_ids_cnt; ii++)
1111 {
1112 char msg[20];
1113 snprintf(msg, 20, "expected %hhu of %hhu",
1114 ii + 1, tap->expected_ids_cnt);
1115 jtag_examine_chain_display(LOG_LVL_ERROR, msg,
1116 tap->dotted_name, tap->expected_ids[ii]);
1117 }
1118 return ERROR_JTAG_INIT_FAILED;
1119 }
1120
1121 /* see if number of discovered devices matches configuration */
1122 if (device_count != jtag_tap_count_enabled())
1123 {
1124 LOG_ERROR("number of discovered devices in JTAG chain (%i) "
1125 "does not match (enabled) configuration (%i), total taps: %d",
1126 device_count, jtag_tap_count_enabled(), jtag_tap_count());
1127 LOG_ERROR("check the config file and ensure proper JTAG communication"
1128 " (connections, speed, ...)");
1129 return ERROR_JTAG_INIT_FAILED;
1130 }
1131
1132 return ERROR_OK;
1133 }
1134
1135 static int jtag_validate_chain(void)
1136 {
1137 jtag_tap_t *tap;
1138 int total_ir_length = 0;
1139 u8 *ir_test = NULL;
1140 scan_field_t field;
1141 int chain_pos = 0;
1142
1143 tap = NULL;
1144 total_ir_length = 0;
1145 for(;;){
1146 tap = jtag_tap_next_enabled(tap);
1147 if( tap == NULL ){
1148 break;
1149 }
1150 total_ir_length += tap->ir_length;
1151 }
1152
1153 total_ir_length += 2;
1154 ir_test = malloc(CEIL(total_ir_length, 8));
1155 buf_set_ones(ir_test, total_ir_length);
1156
1157 field.tap = NULL;
1158 field.num_bits = total_ir_length;
1159 field.out_value = ir_test;
1160 field.in_value = ir_test;
1161
1162
1163 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1164 jtag_execute_queue();
1165
1166 tap = NULL;
1167 chain_pos = 0;
1168 int val;
1169 for(;;){
1170 tap = jtag_tap_next_enabled(tap);
1171 if( tap == NULL ){
1172 break;
1173 }
1174
1175 val = buf_get_u32(ir_test, chain_pos, 2);
1176 if (val != 0x1)
1177 {
1178 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1179 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);
1180 free(cbuf);
1181 free(ir_test);
1182 return ERROR_JTAG_INIT_FAILED;
1183 }
1184 chain_pos += tap->ir_length;
1185 }
1186
1187 val = buf_get_u32(ir_test, chain_pos, 2);
1188 if (val != 0x3)
1189 {
1190 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1191 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);
1192 free(cbuf);
1193 free(ir_test);
1194 return ERROR_JTAG_INIT_FAILED;
1195 }
1196
1197 free(ir_test);
1198
1199 return ERROR_OK;
1200 }
1201
1202 enum jtag_tap_cfg_param {
1203 JCFG_EVENT
1204 };
1205
1206 static Jim_Nvp nvp_config_opts[] = {
1207 { .name = "-event", .value = JCFG_EVENT },
1208
1209 { .name = NULL, .value = -1 }
1210 };
1211
1212 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
1213 {
1214 Jim_Nvp *n;
1215 Jim_Obj *o;
1216 int e;
1217
1218 /* parse config or cget options */
1219 while (goi->argc > 0) {
1220 Jim_SetEmptyResult (goi->interp);
1221
1222 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1223 if (e != JIM_OK) {
1224 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1225 return e;
1226 }
1227
1228 switch (n->value) {
1229 case JCFG_EVENT:
1230 if (goi->argc == 0) {
1231 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1232 return JIM_ERR;
1233 }
1234
1235 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1236 if (e != JIM_OK) {
1237 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1238 return e;
1239 }
1240
1241 if (goi->isconfigure) {
1242 if (goi->argc != 1) {
1243 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1244 return JIM_ERR;
1245 }
1246 } else {
1247 if (goi->argc != 0) {
1248 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1249 return JIM_ERR;
1250 }
1251 }
1252
1253 {
1254 jtag_tap_event_action_t *jteap;
1255
1256 jteap = tap->event_action;
1257 /* replace existing? */
1258 while (jteap) {
1259 if (jteap->event == (enum jtag_tap_event)n->value) {
1260 break;
1261 }
1262 jteap = jteap->next;
1263 }
1264
1265 if (goi->isconfigure) {
1266 if (jteap == NULL) {
1267 /* create new */
1268 jteap = calloc(1, sizeof (*jteap));
1269 }
1270 jteap->event = n->value;
1271 Jim_GetOpt_Obj( goi, &o);
1272 if (jteap->body) {
1273 Jim_DecrRefCount(interp, jteap->body);
1274 }
1275 jteap->body = Jim_DuplicateObj(goi->interp, o);
1276 Jim_IncrRefCount(jteap->body);
1277
1278 /* add to head of event list */
1279 jteap->next = tap->event_action;
1280 tap->event_action = jteap;
1281 Jim_SetEmptyResult(goi->interp);
1282 } else {
1283 /* get */
1284 if (jteap == NULL) {
1285 Jim_SetEmptyResult(goi->interp);
1286 } else {
1287 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1288 }
1289 }
1290 }
1291 /* loop for more */
1292 break;
1293 }
1294 } /* while (goi->argc) */
1295
1296 return JIM_OK;
1297 }
1298
1299
1300 static void jtag_tap_init(jtag_tap_t *tap)
1301 {
1302 assert(0 != tap->ir_length);
1303
1304 tap->expected = malloc(tap->ir_length);
1305 tap->expected_mask = malloc(tap->ir_length);
1306 tap->cur_instr = malloc(tap->ir_length);
1307
1308 buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
1309 buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
1310 buf_set_ones(tap->cur_instr, tap->ir_length);
1311
1312 // place TAP in bypass mode
1313 tap->bypass = 1;
1314 // register the reset callback for the TAP
1315 jtag_register_event_callback(&jtag_reset_callback, tap);
1316
1317 LOG_DEBUG("Created Tap: %s @ abs position %d, "
1318 "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name,
1319 tap->abs_chain_position, tap->ir_length,
1320 tap->ir_capture_value, tap->ir_capture_mask);
1321 jtag_tap_add(tap);
1322 }
1323
1324 static void jtag_tap_free(jtag_tap_t *tap)
1325 {
1326 /// @todo is anything missing? no memory leaks please
1327 free((void *)tap->expected_ids);
1328 free((void *)tap->chip);
1329 free((void *)tap->tapname);
1330 free((void *)tap->dotted_name);
1331 free(tap);
1332 }
1333
1334 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1335 {
1336 jtag_tap_t *pTap;
1337 jim_wide w;
1338 int x;
1339 int e;
1340 int reqbits;
1341 Jim_Nvp *n;
1342 char *cp;
1343 const Jim_Nvp opts[] = {
1344 #define NTAP_OPT_IRLEN 0
1345 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1346 #define NTAP_OPT_IRMASK 1
1347 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1348 #define NTAP_OPT_IRCAPTURE 2
1349 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1350 #define NTAP_OPT_ENABLED 3
1351 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1352 #define NTAP_OPT_DISABLED 4
1353 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1354 #define NTAP_OPT_EXPECTED_ID 5
1355 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1356 { .name = NULL , .value = -1 },
1357 };
1358
1359 pTap = malloc( sizeof(jtag_tap_t) );
1360 memset( pTap, 0, sizeof(*pTap) );
1361 if( !pTap ){
1362 Jim_SetResult_sprintf( goi->interp, "no memory");
1363 return JIM_ERR;
1364 }
1365 /*
1366 * we expect CHIP + TAP + OPTIONS
1367 * */
1368 if( goi->argc < 3 ){
1369 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1370 return JIM_ERR;
1371 }
1372 Jim_GetOpt_String( goi, &cp, NULL );
1373 pTap->chip = strdup(cp);
1374
1375 Jim_GetOpt_String( goi, &cp, NULL );
1376 pTap->tapname = strdup(cp);
1377
1378 /* name + dot + name + null */
1379 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1380 cp = malloc( x );
1381 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1382 pTap->dotted_name = cp;
1383
1384 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1385 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1386
1387 /* default is enabled */
1388 pTap->enabled = 1;
1389
1390 /* deal with options */
1391 #define NTREQ_IRLEN 1
1392 #define NTREQ_IRCAPTURE 2
1393 #define NTREQ_IRMASK 4
1394
1395 /* clear them as we find them */
1396 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1397
1398 while( goi->argc ){
1399 e = Jim_GetOpt_Nvp( goi, opts, &n );
1400 if( e != JIM_OK ){
1401 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1402 return e;
1403 }
1404 LOG_DEBUG("Processing option: %s", n->name );
1405 switch( n->value ){
1406 case NTAP_OPT_ENABLED:
1407 pTap->enabled = 1;
1408 break;
1409 case NTAP_OPT_DISABLED:
1410 pTap->enabled = 0;
1411 break;
1412 case NTAP_OPT_EXPECTED_ID:
1413 {
1414 u32 *new_expected_ids;
1415
1416 e = Jim_GetOpt_Wide( goi, &w );
1417 if( e != JIM_OK) {
1418 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1419 return e;
1420 }
1421
1422 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1423 if (new_expected_ids == NULL) {
1424 Jim_SetResult_sprintf( goi->interp, "no memory");
1425 return JIM_ERR;
1426 }
1427
1428 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1429
1430 new_expected_ids[pTap->expected_ids_cnt] = w;
1431
1432 free(pTap->expected_ids);
1433 pTap->expected_ids = new_expected_ids;
1434 pTap->expected_ids_cnt++;
1435 break;
1436 }
1437 case NTAP_OPT_IRLEN:
1438 case NTAP_OPT_IRMASK:
1439 case NTAP_OPT_IRCAPTURE:
1440 e = Jim_GetOpt_Wide( goi, &w );
1441 if( e != JIM_OK ){
1442 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1443 return e;
1444 }
1445 if( (w < 0) || (w > 0xffff) ){
1446 /* wacky value */
1447 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1448 n->name, (int)(w), (int)(w));
1449 return JIM_ERR;
1450 }
1451 switch(n->value){
1452 case NTAP_OPT_IRLEN:
1453 pTap->ir_length = w;
1454 reqbits &= (~(NTREQ_IRLEN));
1455 break;
1456 case NTAP_OPT_IRMASK:
1457 pTap->ir_capture_mask = w;
1458 reqbits &= (~(NTREQ_IRMASK));
1459 break;
1460 case NTAP_OPT_IRCAPTURE:
1461 pTap->ir_capture_value = w;
1462 reqbits &= (~(NTREQ_IRCAPTURE));
1463 break;
1464 }
1465 } /* switch(n->value) */
1466 } /* while( goi->argc ) */
1467
1468 /* Did all the required option bits get cleared? */
1469 if (0 == reqbits)
1470 {
1471 jtag_tap_init(pTap);
1472 return ERROR_OK;
1473 }
1474
1475 Jim_SetResult_sprintf(goi->interp,
1476 "newtap: %s missing required parameters",
1477 pTap->dotted_name);
1478 jtag_tap_free(pTap);
1479 return JIM_ERR;
1480 }
1481
1482 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
1483 {
1484 Jim_GetOptInfo goi;
1485 int e;
1486 Jim_Nvp *n;
1487 Jim_Obj *o;
1488 struct command_context_s *context;
1489
1490 enum {
1491 JTAG_CMD_INTERFACE,
1492 JTAG_CMD_INIT_RESET,
1493 JTAG_CMD_NEWTAP,
1494 JTAG_CMD_TAPENABLE,
1495 JTAG_CMD_TAPDISABLE,
1496 JTAG_CMD_TAPISENABLED,
1497 JTAG_CMD_CONFIGURE,
1498 JTAG_CMD_CGET
1499 };
1500
1501 const Jim_Nvp jtag_cmds[] = {
1502 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
1503 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
1504 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
1505 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
1506 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
1507 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
1508 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
1509 { .name = "cget" , .value = JTAG_CMD_CGET },
1510
1511 { .name = NULL, .value = -1 },
1512 };
1513
1514 context = Jim_GetAssocData(interp, "context");
1515 /* go past the command */
1516 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
1517
1518 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
1519 if( e != JIM_OK ){
1520 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
1521 return e;
1522 }
1523 Jim_SetEmptyResult( goi.interp );
1524 switch( n->value ){
1525 case JTAG_CMD_INTERFACE:
1526 /* return the name of the interface */
1527 /* TCL code might need to know the exact type... */
1528 /* FUTURE: we allow this as a means to "set" the interface. */
1529 if( goi.argc != 0 ){
1530 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1531 return JIM_ERR;
1532 }
1533 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
1534 return JIM_OK;
1535 case JTAG_CMD_INIT_RESET:
1536 if( goi.argc != 0 ){
1537 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1538 return JIM_ERR;
1539 }
1540 e = jtag_init_reset(context);
1541 if( e != ERROR_OK ){
1542 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
1543 return JIM_ERR;
1544 }
1545 return JIM_OK;
1546 case JTAG_CMD_NEWTAP:
1547 return jim_newtap_cmd( &goi );
1548 break;
1549 case JTAG_CMD_TAPISENABLED:
1550 case JTAG_CMD_TAPENABLE:
1551 case JTAG_CMD_TAPDISABLE:
1552 if( goi.argc != 1 ){
1553 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
1554 return JIM_ERR;
1555 }
1556
1557 {
1558 jtag_tap_t *t;
1559 t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
1560 if( t == NULL ){
1561 return JIM_ERR;
1562 }
1563 switch( n->value ){
1564 case JTAG_CMD_TAPISENABLED:
1565 e = t->enabled;
1566 break;
1567 case JTAG_CMD_TAPENABLE:
1568 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
1569 e = 1;
1570 t->enabled = e;
1571 break;
1572 case JTAG_CMD_TAPDISABLE:
1573 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
1574 e = 0;
1575 t->enabled = e;
1576 break;
1577 }
1578 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
1579 return JIM_OK;
1580 }
1581 break;
1582
1583 case JTAG_CMD_CGET:
1584 if( goi.argc < 2 ){
1585 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
1586 return JIM_ERR;
1587 }
1588
1589 {
1590 jtag_tap_t *t;
1591
1592 Jim_GetOpt_Obj(&goi, &o);
1593 t = jtag_tap_by_jim_obj( goi.interp, o );
1594 if( t == NULL ){
1595 return JIM_ERR;
1596 }
1597
1598 goi.isconfigure = 0;
1599 return jtag_tap_configure_cmd( &goi, t);
1600 }
1601 break;
1602
1603 case JTAG_CMD_CONFIGURE:
1604 if( goi.argc < 3 ){
1605 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
1606 return JIM_ERR;
1607 }
1608
1609 {
1610 jtag_tap_t *t;
1611
1612 Jim_GetOpt_Obj(&goi, &o);
1613 t = jtag_tap_by_jim_obj( goi.interp, o );
1614 if( t == NULL ){
1615 return JIM_ERR;
1616 }
1617
1618 goi.isconfigure = 1;
1619 return jtag_tap_configure_cmd( &goi, t);
1620 }
1621 }
1622
1623 return JIM_ERR;
1624 }
1625
1626 int jtag_register_commands(struct command_context_s *cmd_ctx)
1627 {
1628 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
1629
1630 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1631 COMMAND_CONFIG, "try to configure interface");
1632 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1633 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
1634 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1635 COMMAND_ANY, "set maximum jtag speed (if supported); "
1636 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
1637 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1638 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
1639 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1640 COMMAND_ANY,
1641 "[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]");
1642 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1643 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1644 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1645 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1646
1647 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1648 COMMAND_EXEC, "print current scan chain configuration");
1649
1650 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1651 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1652 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1653 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1654 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1655 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1656 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1657 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1658 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1659 register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
1660
1661 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1662 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1663 register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
1664 COMMAND_ANY, "verify value capture <enable|disable>");
1665 register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
1666 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
1667 return ERROR_OK;
1668 }
1669
1670 int jtag_interface_init(struct command_context_s *cmd_ctx)
1671 {
1672 if (jtag)
1673 return ERROR_OK;
1674
1675 if (!jtag_interface)
1676 {
1677 /* nothing was previously specified by "interface" command */
1678 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1679 return ERROR_JTAG_INVALID_INTERFACE;
1680 }
1681 if(hasKHz)
1682 {
1683 jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed);
1684 hasKHz = false;
1685 }
1686
1687 if (jtag_interface->init() != ERROR_OK)
1688 return ERROR_JTAG_INIT_FAILED;
1689
1690 jtag = jtag_interface;
1691 return ERROR_OK;
1692 }
1693
1694 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1695 {
1696 jtag_tap_t *tap;
1697 int retval;
1698
1699 LOG_DEBUG("Init JTAG chain");
1700
1701 tap = jtag_tap_next_enabled(NULL);
1702 if( tap == NULL ){
1703 LOG_ERROR("There are no enabled taps?");
1704 return ERROR_JTAG_INIT_FAILED;
1705 }
1706
1707 jtag_add_tlr();
1708 if ((retval=jtag_execute_queue())!=ERROR_OK)
1709 return retval;
1710
1711 /* examine chain first, as this could discover the real chain layout */
1712 if (jtag_examine_chain() != ERROR_OK)
1713 {
1714 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1715 }
1716
1717 if (jtag_validate_chain() != ERROR_OK)
1718 {
1719 LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
1720 }
1721
1722 return ERROR_OK;
1723 }
1724
1725 int jtag_interface_quit(void)
1726 {
1727 if (!jtag || !jtag->quit)
1728 return ERROR_OK;
1729
1730 // close the JTAG interface
1731 int result = jtag->quit();
1732 if (ERROR_OK != result)
1733 LOG_ERROR("failed: %d", result);
1734
1735 return ERROR_OK;
1736 }
1737
1738
1739 int jtag_init_reset(struct command_context_s *cmd_ctx)
1740 {
1741 int retval;
1742
1743 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1744 return retval;
1745
1746 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
1747
1748 /* Reset can happen after a power cycle.
1749 *
1750 * Ideally we would only assert TRST or run RESET before the target reset.
1751 *
1752 * However w/srst_pulls_trst, trst is asserted together with the target
1753 * reset whether we want it or not.
1754 *
1755 * NB! Some targets have JTAG circuitry disabled until a
1756 * trst & srst has been asserted.
1757 *
1758 * NB! here we assume nsrst/ntrst delay are sufficient!
1759 *
1760 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1761 *
1762 */
1763 jtag_add_reset(1, 0); /* RESET or TRST */
1764 if (jtag_reset_config & RESET_HAS_SRST)
1765 {
1766 jtag_add_reset(1, 1);
1767 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1768 jtag_add_reset(0, 1);
1769 }
1770 jtag_add_reset(0, 0);
1771 if ((retval = jtag_execute_queue()) != ERROR_OK)
1772 return retval;
1773
1774 /* Check that we can communication on the JTAG chain + eventually we want to
1775 * be able to perform enumeration only after OpenOCD has started
1776 * telnet and GDB server
1777 *
1778 * That would allow users to more easily perform any magic they need to before
1779 * reset happens.
1780 */
1781 return jtag_init_inner(cmd_ctx);
1782 }
1783
1784 int jtag_init(struct command_context_s *cmd_ctx)
1785 {
1786 int retval;
1787 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1788 return retval;
1789 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1790 {
1791 return ERROR_OK;
1792 }
1793 return jtag_init_reset(cmd_ctx);
1794 }
1795
1796 void jtag_set_speed_khz(unsigned khz)
1797 {
1798 speed_khz = khz;
1799 }
1800 unsigned jtag_get_speed_khz(void)
1801 {
1802 return speed_khz;
1803 }
1804
1805 static int default_khz(int khz, int *jtag_speed)
1806 {
1807 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1808 return ERROR_FAIL;
1809 }
1810
1811 static int default_speed_div(int speed, int *khz)
1812 {
1813 LOG_ERROR("Translation from jtag_speed to khz not implemented");
1814 return ERROR_FAIL;
1815 }
1816
1817 static int default_power_dropout(int *dropout)
1818 {
1819 *dropout=0; /* by default we can't detect power dropout */
1820 return ERROR_OK;
1821 }
1822
1823 static int default_srst_asserted(int *srst_asserted)
1824 {
1825 *srst_asserted=0; /* by default we can't detect srst asserted */
1826 return ERROR_OK;
1827 }
1828
1829 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1830 {
1831 int i;
1832 int retval;
1833
1834 /* check whether the interface is already configured */
1835 if (jtag_interface)
1836 {
1837 LOG_WARNING("Interface already configured, ignoring");
1838 return ERROR_OK;
1839 }
1840
1841 /* interface name is a mandatory argument */
1842 if (argc < 1 || args[0][0] == '\0')
1843 {
1844 return ERROR_COMMAND_SYNTAX_ERROR;
1845 }
1846
1847 for (i=0; jtag_interfaces[i]; i++)
1848 {
1849 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1850 {
1851 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
1852 {
1853 return retval;
1854 }
1855
1856 jtag_interface = jtag_interfaces[i];
1857
1858 if (jtag_interface->khz == NULL)
1859 {
1860 jtag_interface->khz = default_khz;
1861 }
1862 if (jtag_interface->speed_div == NULL)
1863 {
1864 jtag_interface->speed_div = default_speed_div;
1865 }
1866 if (jtag_interface->power_dropout == NULL)
1867 {
1868 jtag_interface->power_dropout = default_power_dropout;
1869 }
1870 if (jtag_interface->srst_asserted == NULL)
1871 {
1872 jtag_interface->srst_asserted = default_srst_asserted;
1873 }
1874
1875 return ERROR_OK;
1876 }
1877 }
1878
1879 /* no valid interface was found (i.e. the configuration option,
1880 * didn't match one of the compiled-in interfaces
1881 */
1882 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1883 LOG_ERROR("compiled-in jtag interfaces:");
1884 for (i = 0; jtag_interfaces[i]; i++)
1885 {
1886 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1887 }
1888
1889 return ERROR_JTAG_INVALID_INTERFACE;
1890 }
1891
1892 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1893 {
1894 int e;
1895 char buf[1024];
1896 Jim_Obj *newargs[ 10 ];
1897 /*
1898 * CONVERT SYNTAX
1899 * argv[-1] = command
1900 * argv[ 0] = ir length
1901 * argv[ 1] = ir capture
1902 * argv[ 2] = ir mask
1903 * argv[ 3] = not actually used by anything but in the docs
1904 */
1905
1906 if( argc < 4 ){
1907 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
1908 return ERROR_OK;
1909 }
1910 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
1911 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
1912 args[0],
1913 args[1],
1914 args[2] );
1915 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
1916 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
1917 command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
1918 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
1919
1920 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
1921 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
1922 sprintf( buf, "chip%d", jtag_tap_count() );
1923 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
1924 sprintf( buf, "tap%d", jtag_tap_count() );
1925 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
1926 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
1927 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
1928 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
1929 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
1930 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
1931 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
1932
1933 command_print( cmd_ctx, "NEW COMMAND:");
1934 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
1935 Jim_GetString( newargs[0], NULL ),
1936 Jim_GetString( newargs[1], NULL ),
1937 Jim_GetString( newargs[2], NULL ),
1938 Jim_GetString( newargs[3], NULL ),
1939 Jim_GetString( newargs[4], NULL ),
1940 Jim_GetString( newargs[5], NULL ),
1941 Jim_GetString( newargs[6], NULL ),
1942 Jim_GetString( newargs[7], NULL ),
1943 Jim_GetString( newargs[8], NULL ),
1944 Jim_GetString( newargs[9], NULL ) );
1945
1946 e = jim_jtag_command( interp, 10, newargs );
1947 if( e != JIM_OK ){
1948 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
1949 }
1950 return e;
1951 }
1952
1953 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1954 {
1955 jtag_tap_t *tap;
1956
1957 tap = jtag_all_taps();
1958 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
1959 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
1960
1961 while( tap ){
1962 u32 expected, expected_mask, cur_instr, ii;
1963 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
1964 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
1965 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
1966
1967 command_print(cmd_ctx,
1968 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
1969 tap->abs_chain_position,
1970 tap->dotted_name,
1971 tap->enabled ? 'Y' : 'n',
1972 tap->idcode,
1973 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
1974 tap->ir_length,
1975 expected,
1976 expected_mask,
1977 cur_instr);
1978
1979 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
1980 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
1981 tap->expected_ids[ii]);
1982 }
1983
1984 tap = tap->next_tap;
1985 }
1986
1987 return ERROR_OK;
1988 }
1989
1990 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1991 {
1992 int new_cfg = 0;
1993 int mask = 0;
1994
1995 if (argc < 1)
1996 return ERROR_COMMAND_SYNTAX_ERROR;
1997
1998 /* Original versions cared about the order of these tokens:
1999 * reset_config signals [combination [trst_type [srst_type]]]
2000 * They also clobbered the previous configuration even on error.
2001 *
2002 * Here we don't care about the order, and only change values
2003 * which have been explicitly specified.
2004 */
2005 for (; argc; argc--, args++) {
2006 int tmp = 0;
2007 int m;
2008
2009 /* signals */
2010 m = RESET_HAS_TRST | RESET_HAS_SRST;
2011 if (strcmp(*args, "none") == 0)
2012 tmp = RESET_NONE;
2013 else if (strcmp(*args, "trst_only") == 0)
2014 tmp = RESET_HAS_TRST;
2015 else if (strcmp(*args, "srst_only") == 0)
2016 tmp = RESET_HAS_SRST;
2017 else if (strcmp(*args, "trst_and_srst") == 0)
2018 tmp = RESET_HAS_TRST | RESET_HAS_SRST;
2019 else
2020 m = 0;
2021 if (mask & m) {
2022 LOG_ERROR("extra reset_config %s spec (%s)",
2023 "signal", *args);
2024 return ERROR_INVALID_ARGUMENTS;
2025 }
2026 if (m)
2027 goto next;
2028
2029 /* combination (options for broken wiring) */
2030 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2031 if (strcmp(*args, "separate") == 0)
2032 /* separate reset lines - default */;
2033 else if (strcmp(*args, "srst_pulls_trst") == 0)
2034 tmp |= RESET_SRST_PULLS_TRST;
2035 else if (strcmp(*args, "trst_pulls_srst") == 0)
2036 tmp |= RESET_TRST_PULLS_SRST;
2037 else if (strcmp(*args, "combined") == 0)
2038 tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2039 else
2040 m = 0;
2041 if (mask & m) {
2042 LOG_ERROR("extra reset_config %s spec (%s)",
2043 "combination", *args);
2044 return ERROR_INVALID_ARGUMENTS;
2045 }
2046 if (m)
2047 goto next;
2048
2049 /* trst_type (NOP without HAS_TRST) */
2050 m = RESET_TRST_OPEN_DRAIN;
2051 if (strcmp(*args, "trst_open_drain") == 0)
2052 tmp |= RESET_TRST_OPEN_DRAIN;
2053 else if (strcmp(*args, "trst_push_pull") == 0)
2054 /* push/pull from adapter - default */;
2055 else
2056 m = 0;
2057 if (mask & m) {
2058 LOG_ERROR("extra reset_config %s spec (%s)",
2059 "trst_type", *args);
2060 return ERROR_INVALID_ARGUMENTS;
2061 }
2062 if (m)
2063 goto next;
2064
2065 /* srst_type (NOP without HAS_SRST) */
2066 m |= RESET_SRST_PUSH_PULL;
2067 if (strcmp(*args, "srst_push_pull") == 0)
2068 tmp |= RESET_SRST_PUSH_PULL;
2069 else if (strcmp(*args, "srst_open_drain") == 0)
2070 /* open drain from adapter - default */;
2071 else
2072 m = 0;
2073 if (mask & m) {
2074 LOG_ERROR("extra reset_config %s spec (%s)",
2075 "srst_type", *args);
2076 return ERROR_INVALID_ARGUMENTS;
2077 }
2078 if (m)
2079 goto next;
2080
2081 /* caller provided nonsense; fail */
2082 LOG_ERROR("unknown reset_config flag (%s)", *args);
2083 return ERROR_INVALID_ARGUMENTS;
2084
2085 next:
2086 /* Remember the bits which were specified (mask)
2087 * and their new values (new_cfg).
2088 */
2089 mask |= m;
2090 new_cfg |= tmp;
2091 }
2092
2093 /* clear previous values of those bits, save new values */
2094 jtag_reset_config &= ~mask;
2095 jtag_reset_config |= new_cfg;
2096
2097 return ERROR_OK;
2098 }
2099
2100 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2101 {
2102 if (argc < 1)
2103 {
2104 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
2105 exit(-1);
2106 }
2107 else
2108 {
2109 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
2110 }
2111
2112 return ERROR_OK;
2113 }
2114
2115 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2116 {
2117 if (argc < 1)
2118 {
2119 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
2120 exit(-1);
2121 }
2122 else
2123 {
2124 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
2125 }
2126
2127 return ERROR_OK;
2128 }
2129
2130
2131 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2132 {
2133 int retval=ERROR_OK;
2134
2135 if (argc == 1)
2136 {
2137 LOG_DEBUG("handle jtag speed");
2138
2139 int cur_speed = 0;
2140 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2141
2142 /* this command can be called during CONFIG,
2143 * in which case jtag isn't initialized */
2144 if (jtag)
2145 {
2146 retval=jtag->speed(cur_speed);
2147 }
2148 } else if (argc == 0)
2149 {
2150 } else
2151 {
2152 return ERROR_COMMAND_SYNTAX_ERROR;
2153 }
2154 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2155
2156 return retval;
2157 }
2158
2159 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2160 {
2161 int retval=ERROR_OK;
2162 LOG_DEBUG("handle jtag khz");
2163
2164 int cur_speed = 0;
2165 if(argc == 1)
2166 {
2167 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
2168 if (jtag != NULL)
2169 {
2170 LOG_DEBUG("have interface set up");
2171 int speed_div1;
2172 if ((retval=jtag->khz(jtag_get_speed_khz(), &speed_div1))!=ERROR_OK)
2173 {
2174 jtag_set_speed_khz(0);
2175 return retval;
2176 }
2177
2178 cur_speed = jtag_speed = speed_div1;
2179
2180 retval=jtag->speed(cur_speed);
2181 } else
2182 {
2183 hasKHz = true;
2184 }
2185 } else if (argc==0)
2186 {
2187 } else
2188 {
2189 return ERROR_COMMAND_SYNTAX_ERROR;
2190 }
2191 cur_speed = jtag_get_speed_khz();
2192
2193 if (jtag!=NULL)
2194 {
2195 if ((retval=jtag->speed_div(jtag_speed, &cur_speed))!=ERROR_OK)
2196 return retval;
2197 }
2198
2199 if (cur_speed)
2200 command_print(cmd_ctx, "%d kHz", cur_speed);
2201 else
2202 command_print(cmd_ctx, "RCLK - adaptive");
2203 return retval;
2204
2205 }
2206
2207 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2208 {
2209 if (argc < 1)
2210 return ERROR_COMMAND_SYNTAX_ERROR;
2211
2212 tap_state_t state = tap_state_by_name(args[0]);
2213 if (state < 0)
2214 {
2215 command_print( cmd_ctx, "Invalid state name: %s\n", args[0] );
2216 return ERROR_COMMAND_SYNTAX_ERROR;
2217 }
2218 jtag_set_end_state(state);
2219 jtag_execute_queue();
2220
2221 command_print(cmd_ctx, "current endstate: %s",
2222 tap_state_name(cmd_queue_end_state));
2223
2224 return ERROR_OK;
2225 }
2226
2227 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2228 {
2229 int trst = -1;
2230 int srst = -1;
2231
2232 if (argc < 2)
2233 {
2234 return ERROR_COMMAND_SYNTAX_ERROR;
2235 }
2236
2237 if (args[0][0] == '1')
2238 trst = 1;
2239 else if (args[0][0] == '0')
2240 trst = 0;
2241 else
2242 {
2243 return ERROR_COMMAND_SYNTAX_ERROR;
2244 }
2245
2246 if (args[1][0] == '1')
2247 srst = 1;
2248 else if (args[1][0] == '0')
2249 srst = 0;
2250 else
2251 {
2252 return ERROR_COMMAND_SYNTAX_ERROR;
2253 }
2254
2255 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2256 return ERROR_JTAG_INIT_FAILED;
2257
2258 jtag_add_reset(trst, srst);
2259 jtag_execute_queue();
2260
2261 return ERROR_OK;
2262 }
2263
2264 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2265 {
2266 if (argc < 1)
2267 {
2268 return ERROR_COMMAND_SYNTAX_ERROR;
2269 }
2270
2271 jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
2272 jtag_execute_queue();
2273
2274 return ERROR_OK;
2275
2276 }
2277
2278 /*
2279 * For "irscan" or "drscan" commands, the "end" (really, "next") state
2280 * should be stable ... and *NOT* a shift state, otherwise free-running
2281 * jtag clocks could change the values latched by the update state.
2282 */
2283 static bool scan_is_safe(tap_state_t state)
2284 {
2285 switch (state)
2286 {
2287 case TAP_RESET:
2288 case TAP_IDLE:
2289 case TAP_DRPAUSE:
2290 case TAP_IRPAUSE:
2291 return true;
2292 default:
2293 return false;
2294 }
2295 }
2296
2297
2298 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2299 {
2300 int i;
2301 scan_field_t *fields;
2302 jtag_tap_t *tap;
2303 tap_state_t endstate;
2304
2305 if ((argc < 2) || (argc % 2))
2306 {
2307 return ERROR_COMMAND_SYNTAX_ERROR;
2308 }
2309
2310 /* optional "-endstate" "statename" at the end of the arguments,
2311 * so that e.g. IRPAUSE can let us load the data register before
2312 * entering RUN/IDLE to execute the instruction we load here.
2313 */
2314 endstate = TAP_IDLE;
2315
2316 if( argc >= 4 ){
2317 /* have at least one pair of numbers. */
2318 /* is last pair the magic text? */
2319 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
2320 const char *cpA;
2321 const char *cpS;
2322 cpA = args[ argc-1 ];
2323 for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
2324 cpS = tap_state_name( endstate );
2325 if( 0 == strcmp( cpA, cpS ) ){
2326 break;
2327 }
2328 }
2329 if( endstate >= TAP_NUM_STATES ){
2330 return ERROR_COMMAND_SYNTAX_ERROR;
2331 } else {
2332 if (!scan_is_safe(endstate))
2333 LOG_WARNING("irscan with unsafe "
2334 "endstate \"%s\"", cpA);
2335 /* found - remove the last 2 args */
2336 argc -= 2;
2337 }
2338 }
2339 }
2340
2341 int num_fields = argc / 2;
2342
2343 fields = malloc(sizeof(scan_field_t) * num_fields);
2344
2345 for (i = 0; i < num_fields; i++)
2346 {
2347 tap = jtag_tap_by_string( args[i*2] );
2348 if (tap==NULL)
2349 {
2350 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2351 return ERROR_FAIL;
2352 }
2353 int field_size = tap->ir_length;
2354 fields[i].tap = tap;
2355 fields[i].num_bits = field_size;
2356 fields[i].out_value = malloc(CEIL(field_size, 8));
2357 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2358 fields[i].in_value = NULL;
2359 }
2360
2361 /* did we have an endstate? */
2362 jtag_add_ir_scan(num_fields, fields, endstate);
2363
2364 int retval=jtag_execute_queue();
2365
2366 for (i = 0; i < num_fields; i++)
2367 free(fields[i].out_value);
2368
2369 free (fields);
2370
2371 return retval;
2372 }
2373
2374 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2375 {
2376 int retval;
2377 scan_field_t *fields;
2378 int num_fields;
2379 int field_count = 0;
2380 int i, e;
2381 jtag_tap_t *tap;
2382 tap_state_t endstate;
2383
2384 /* args[1] = device
2385 * args[2] = num_bits
2386 * args[3] = hex string
2387 * ... repeat num bits and hex string ...
2388 *
2389 * .. optionally:
2390 * args[N-2] = "-endstate"
2391 * args[N-1] = statename
2392 */
2393 if ((argc < 4) || ((argc % 2)!=0))
2394 {
2395 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2396 return JIM_ERR;
2397 }
2398
2399 endstate = TAP_IDLE;
2400
2401 /* validate arguments as numbers */
2402 e = JIM_OK;
2403 for (i = 2; i < argc; i+=2)
2404 {
2405 long bits;
2406 const char *cp;
2407
2408 e = Jim_GetLong(interp, args[i], &bits);
2409 /* If valid - try next arg */
2410 if( e == JIM_OK ){
2411 continue;
2412 }
2413
2414 /* Not valid.. are we at the end? */
2415 if ( ((i+2) != argc) ){
2416 /* nope, then error */
2417 return e;
2418 }
2419
2420 /* it could be: "-endstate FOO"
2421 * e.g. DRPAUSE so we can issue more instructions
2422 * before entering RUN/IDLE and executing them.
2423 */
2424
2425 /* get arg as a string. */
2426 cp = Jim_GetString( args[i], NULL );
2427 /* is it the magic? */
2428 if( 0 == strcmp( "-endstate", cp ) ){
2429 /* is the statename valid? */
2430 cp = Jim_GetString( args[i+1], NULL );
2431
2432 /* see if it is a valid state name */
2433 endstate = tap_state_by_name(cp);
2434 if( endstate < 0 ){
2435 /* update the error message */
2436 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
2437 } else {
2438 if (!scan_is_safe(endstate))
2439 LOG_WARNING("drscan with unsafe "
2440 "endstate \"%s\"", cp);
2441
2442 /* valid - so clear the error */
2443 e = JIM_OK;
2444 /* and remove the last 2 args */
2445 argc -= 2;
2446 }
2447 }
2448
2449 /* Still an error? */
2450 if( e != JIM_OK ){
2451 return e; /* too bad */
2452 }
2453 } /* validate args */
2454
2455 tap = jtag_tap_by_jim_obj( interp, args[1] );
2456 if( tap == NULL ){
2457 return JIM_ERR;
2458 }
2459
2460 num_fields=(argc-2)/2;
2461 fields = malloc(sizeof(scan_field_t) * num_fields);
2462 for (i = 2; i < argc; i+=2)
2463 {
2464 long bits;
2465 int len;
2466 const char *str;
2467
2468 Jim_GetLong(interp, args[i], &bits);
2469 str = Jim_GetString(args[i+1], &len);
2470
2471 fields[field_count].tap = tap;
2472 fields[field_count].num_bits = bits;
2473 fields[field_count].out_value = malloc(CEIL(bits, 8));
2474 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2475 fields[field_count].in_value = fields[field_count].out_value;
2476 field_count++;
2477 }
2478
2479 jtag_add_dr_scan(num_fields, fields, endstate);
2480
2481 retval = jtag_execute_queue();
2482 if (retval != ERROR_OK)
2483 {
2484 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2485 return JIM_ERR;
2486 }
2487
2488 field_count=0;
2489 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2490 for (i = 2; i < argc; i+=2)
2491 {
2492 long bits;
2493 char *str;
2494
2495 Jim_GetLong(interp, args[i], &bits);
2496 str = buf_to_str(fields[field_count].in_value, bits, 16);
2497 free(fields[field_count].out_value);
2498
2499 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2500 free(str);
2501 field_count++;
2502 }
2503
2504 Jim_SetResult(interp, list);
2505
2506 free(fields);
2507
2508 return JIM_OK;
2509 }
2510
2511
2512 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2513 {
2514 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
2515
2516 return JIM_OK;
2517 }
2518
2519
2520 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2521 {
2522 if (argc == 1)
2523 {
2524 if (strcmp(args[0], "enable") == 0)
2525 {
2526 jtag_verify_capture_ir = 1;
2527 }
2528 else if (strcmp(args[0], "disable") == 0)
2529 {
2530 jtag_verify_capture_ir = 0;
2531 } else
2532 {
2533 return ERROR_COMMAND_SYNTAX_ERROR;
2534 }
2535 } else if (argc != 0)
2536 {
2537 return ERROR_COMMAND_SYNTAX_ERROR;
2538 }
2539
2540 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2541
2542 return ERROR_OK;
2543 }
2544
2545 void jtag_set_verify(bool enable)
2546 {
2547 jtag_verify = enable;
2548 }
2549
2550 bool jtag_will_verify()
2551 {
2552 return jtag_verify;
2553 }
2554
2555 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2556 {
2557 if (argc > 1)
2558 return ERROR_COMMAND_SYNTAX_ERROR;
2559
2560 if (argc == 1)
2561 {
2562 if (strcmp(args[0], "enable") == 0)
2563 jtag_set_verify(true);
2564 else if (strcmp(args[0], "disable") == 0)
2565 jtag_set_verify(false);
2566 else
2567 return ERROR_COMMAND_SYNTAX_ERROR;
2568 }
2569
2570 const char *status = jtag_will_verify() ? "enabled": "disabled";
2571 command_print(cmd_ctx, "verify jtag capture is %s", status);
2572
2573 return ERROR_OK;
2574 }
2575
2576
2577 int jtag_power_dropout(int *dropout)
2578 {
2579 return jtag->power_dropout(dropout);
2580 }
2581
2582 int jtag_srst_asserted(int *srst_asserted)
2583 {
2584 return jtag->srst_asserted(srst_asserted);
2585 }
2586
2587 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2588 {
2589 jtag_tap_event_action_t * jteap;
2590 int done;
2591
2592 jteap = tap->event_action;
2593
2594 done = 0;
2595 while (jteap) {
2596 if (jteap->event == e) {
2597 done = 1;
2598 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2599 tap->dotted_name,
2600 e,
2601 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2602 Jim_GetString(jteap->body, NULL) );
2603 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2604 Jim_PrintErrorMessage(interp);
2605 }
2606 }
2607
2608 jteap = jteap->next;
2609 }
2610
2611 if (!done) {
2612 LOG_DEBUG( "event %d %s - no action",
2613 e,
2614 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2615 }
2616 }
2617
2618 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2619 {
2620 if (argc > 1)
2621 return ERROR_COMMAND_SYNTAX_ERROR;
2622
2623 if (argc == 1)
2624 {
2625 bool use_new_table;
2626 if (strcmp(args[0], "short") == 0)
2627 use_new_table = true;
2628 else if (strcmp(args[0], "long") == 0)
2629 use_new_table = false;
2630 else
2631 return ERROR_COMMAND_SYNTAX_ERROR;
2632
2633 tap_use_new_tms_table(use_new_table);
2634 }
2635
2636 command_print(cmd_ctx, "tms sequence is %s",
2637 tap_uses_new_tms_table() ? "short": "long");
2638
2639 return ERROR_OK;
2640 }
2641
2642 /**
2643 * Function jtag_add_statemove
2644 * moves from the current state to the goal \a state. This needs
2645 * to be handled according to the xsvf spec, see the XSTATE command
2646 * description.
2647 */
2648 int jtag_add_statemove(tap_state_t goal_state)
2649 {
2650 int retval = ERROR_OK;
2651
2652 tap_state_t moves[8];
2653 tap_state_t cur_state = cmd_queue_cur_state;
2654 int i;
2655 int tms_bits;
2656 int tms_count;
2657
2658 LOG_DEBUG( "cur_state=%s goal_state=%s",
2659 tap_state_name(cur_state),
2660 tap_state_name(goal_state) );
2661
2662
2663 /* From the XSVF spec, pertaining to XSTATE:
2664
2665 For special states known as stable states (Test-Logic-Reset,
2666 Run-Test/Idle, Pause-DR, Pause- IR), an XSVF interpreter follows
2667 predefined TAP state paths when the starting state is a stable state and
2668 when the XSTATE specifies a new stable state (see the STATE command in
2669 the [Ref 5] for the TAP state paths between stable states). For
2670 non-stable states, XSTATE should specify a state that is only one TAP
2671 state transition distance from the current TAP state to avoid undefined
2672 TAP state paths. A sequence of multiple XSTATE commands can be issued to
2673 transition the TAP through a specific state path.
2674 */
2675
2676 if (goal_state==cur_state )
2677 ; /* nothing to do */
2678
2679 else if( goal_state==TAP_RESET )
2680 {
2681 jtag_add_tlr();
2682 }
2683
2684 else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) )
2685 {
2686 /* note: unless tms_bits holds a path that agrees with [Ref 5] in above
2687 spec, then this code is not fully conformant to the xsvf spec. This
2688 puts a burden on tap_get_tms_path() function from the xsvf spec.
2689 If in doubt, you should confirm that that burden is being met.
2690 */
2691
2692 tms_bits = tap_get_tms_path(cur_state, goal_state);
2693 tms_count = tap_get_tms_path_len(cur_state, goal_state);
2694
2695 assert( (unsigned) tms_count < DIM(moves) );
2696
2697 for (i=0; i<tms_count; i++, tms_bits>>=1)
2698 {
2699 bool bit = tms_bits & 1;
2700
2701 cur_state = tap_state_transition(cur_state, bit);
2702 moves[i] = cur_state;
2703 }
2704
2705 jtag_add_pathmove(tms_count, moves);
2706 }
2707
2708 /* else state must be immediately reachable in one clock cycle, and does not
2709 need to be a stable state.
2710 */
2711 else if( tap_state_transition(cur_state, true) == goal_state
2712 || tap_state_transition(cur_state, false) == goal_state )
2713 {
2714 /* move a single state */
2715 moves[0] = goal_state;
2716 jtag_add_pathmove( 1, moves );
2717 }
2718
2719 else
2720 {
2721 retval = ERROR_FAIL;
2722 }
2723
2724 return retval;
2725 }
2726
2727 void jtag_set_nsrst_delay(unsigned delay)
2728 {
2729 jtag_nsrst_delay = delay;
2730 }
2731 void jtag_set_ntrst_delay(unsigned delay)
2732 {
2733 jtag_ntrst_delay = delay;
2734 }
2735
2736
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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)