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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 /**
999 * This helper checks that remaining bits in the examined chain data are
1000 * all as expected, but a single JTAG device requires only 64 bits to be
1001 * read back correctly. This can help identify and diagnose problems
1002 * with the JTAG chain earlier, gives more helpful/explicit error messages.
1003 */
1004 static void jtag_examine_chain_end(u8 *idcodes, unsigned count, unsigned max)
1005 {
1006 bool triggered = false;
1007 for ( ; count < max - 31; count += 32)
1008 {
1009 u32 idcode = buf_get_u32(idcodes, count, 32);
1010 // do not trigger the warning if the data looks good
1011 if (!triggered && (idcode == 0x000000FF || idcode == 0xFFFFFFFF))
1012 continue;
1013 LOG_WARNING("Unexpected idcode after end of chain: %d 0x%08x",
1014 count, idcode);
1015 triggered = true;
1016 }
1017 }
1018
1019 /* Try to examine chain layout according to IEEE 1149.1 §12
1020 */
1021 static int jtag_examine_chain(void)
1022 {
1023 jtag_tap_t *tap;
1024 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1025 int bit_count;
1026 int device_count = 0;
1027
1028 jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE);
1029
1030 if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE))
1031 return ERROR_JTAG_INIT_FAILED;
1032
1033 /* point at the 1st tap */
1034 tap = jtag_tap_next_enabled(NULL);
1035 if( tap == NULL ){
1036 LOG_ERROR("JTAG: No taps enabled?");
1037 return ERROR_JTAG_INIT_FAILED;
1038 }
1039
1040 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1041 {
1042 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1043 if ((idcode & 1) == 0)
1044 {
1045 /* LSB must not be 0, this indicates a device in bypass */
1046 LOG_WARNING("Tap/Device does not have IDCODE");
1047 idcode=0;
1048
1049 bit_count += 1;
1050 }
1051 else
1052 {
1053 /*
1054 * End of chain (invalid manufacturer ID) some devices, such
1055 * as AVR will output all 1's instead of TDI input value at
1056 * end of chain.
1057 */
1058 if ((idcode == 0x000000FF)||(idcode == 0xFFFFFFFF))
1059 {
1060 jtag_examine_chain_end(idcode_buffer,
1061 bit_count + 32, JTAG_MAX_CHAIN_SIZE * 32);
1062 break;
1063 }
1064
1065 jtag_examine_chain_display(LOG_LVL_INFO, "tap/device found",
1066 tap ? tap->dotted_name : "(not-named)",
1067 idcode);
1068
1069 bit_count += 32;
1070 }
1071 device_count++;
1072 if (!tap)
1073 continue;
1074
1075 tap->idcode = idcode;
1076
1077 if (0 == tap->expected_ids_cnt)
1078 {
1079 // @todo Enable LOG_INFO to ask for reports about unknown TAP IDs.
1080 #if 0
1081 LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode)
1082 LOG_INFO("Please report the chip name and reported ID code to the openocd project");
1083 #endif
1084 tap = jtag_tap_next_enabled(tap);
1085 continue;
1086 }
1087 /* Loop over the expected identification codes and test for a match */
1088 u8 ii;
1089 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1090 if (tap->idcode == tap->expected_ids[ii]) {
1091 break;
1092 }
1093 }
1094
1095 /* If none of the expected ids matched, log an error */
1096 if (ii != tap->expected_ids_cnt)
1097 {
1098 LOG_INFO("JTAG Tap/device matched");
1099 tap = jtag_tap_next_enabled(tap);
1100 continue;
1101 }
1102 jtag_examine_chain_display(LOG_LVL_ERROR, "got",
1103 tap->dotted_name, tap->idcode);
1104 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1105 char msg[20];
1106 snprintf(msg, 20, "expected %hhu of %hhu",
1107 ii + 1, tap->expected_ids_cnt);
1108 jtag_examine_chain_display(LOG_LVL_ERROR, msg,
1109 tap->dotted_name, tap->expected_ids[ii]);
1110 }
1111 return ERROR_JTAG_INIT_FAILED;
1112 }
1113
1114 /* see if number of discovered devices matches configuration */
1115 if (device_count != jtag_tap_count_enabled())
1116 {
1117 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match (enabled) configuration (%i), total taps: %d",
1118 device_count, jtag_tap_count_enabled(), jtag_tap_count());
1119 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1120 return ERROR_JTAG_INIT_FAILED;
1121 }
1122
1123 return ERROR_OK;
1124 }
1125
1126 static int jtag_validate_chain(void)
1127 {
1128 jtag_tap_t *tap;
1129 int total_ir_length = 0;
1130 u8 *ir_test = NULL;
1131 scan_field_t field;
1132 int chain_pos = 0;
1133
1134 tap = NULL;
1135 total_ir_length = 0;
1136 for(;;){
1137 tap = jtag_tap_next_enabled(tap);
1138 if( tap == NULL ){
1139 break;
1140 }
1141 total_ir_length += tap->ir_length;
1142 }
1143
1144 total_ir_length += 2;
1145 ir_test = malloc(CEIL(total_ir_length, 8));
1146 buf_set_ones(ir_test, total_ir_length);
1147
1148 field.tap = NULL;
1149 field.num_bits = total_ir_length;
1150 field.out_value = ir_test;
1151 field.in_value = ir_test;
1152
1153
1154 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1155 jtag_execute_queue();
1156
1157 tap = NULL;
1158 chain_pos = 0;
1159 int val;
1160 for(;;){
1161 tap = jtag_tap_next_enabled(tap);
1162 if( tap == NULL ){
1163 break;
1164 }
1165
1166 val = buf_get_u32(ir_test, chain_pos, 2);
1167 if (val != 0x1)
1168 {
1169 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1170 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);
1171 free(cbuf);
1172 free(ir_test);
1173 return ERROR_JTAG_INIT_FAILED;
1174 }
1175 chain_pos += tap->ir_length;
1176 }
1177
1178 val = buf_get_u32(ir_test, chain_pos, 2);
1179 if (val != 0x3)
1180 {
1181 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1182 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);
1183 free(cbuf);
1184 free(ir_test);
1185 return ERROR_JTAG_INIT_FAILED;
1186 }
1187
1188 free(ir_test);
1189
1190 return ERROR_OK;
1191 }
1192
1193 enum jtag_tap_cfg_param {
1194 JCFG_EVENT
1195 };
1196
1197 static Jim_Nvp nvp_config_opts[] = {
1198 { .name = "-event", .value = JCFG_EVENT },
1199
1200 { .name = NULL, .value = -1 }
1201 };
1202
1203 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
1204 {
1205 Jim_Nvp *n;
1206 Jim_Obj *o;
1207 int e;
1208
1209 /* parse config or cget options */
1210 while (goi->argc > 0) {
1211 Jim_SetEmptyResult (goi->interp);
1212
1213 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1214 if (e != JIM_OK) {
1215 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1216 return e;
1217 }
1218
1219 switch (n->value) {
1220 case JCFG_EVENT:
1221 if (goi->argc == 0) {
1222 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1223 return JIM_ERR;
1224 }
1225
1226 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1227 if (e != JIM_OK) {
1228 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1229 return e;
1230 }
1231
1232 if (goi->isconfigure) {
1233 if (goi->argc != 1) {
1234 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1235 return JIM_ERR;
1236 }
1237 } else {
1238 if (goi->argc != 0) {
1239 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1240 return JIM_ERR;
1241 }
1242 }
1243
1244 {
1245 jtag_tap_event_action_t *jteap;
1246
1247 jteap = tap->event_action;
1248 /* replace existing? */
1249 while (jteap) {
1250 if (jteap->event == (enum jtag_tap_event)n->value) {
1251 break;
1252 }
1253 jteap = jteap->next;
1254 }
1255
1256 if (goi->isconfigure) {
1257 if (jteap == NULL) {
1258 /* create new */
1259 jteap = calloc(1, sizeof (*jteap));
1260 }
1261 jteap->event = n->value;
1262 Jim_GetOpt_Obj( goi, &o);
1263 if (jteap->body) {
1264 Jim_DecrRefCount(interp, jteap->body);
1265 }
1266 jteap->body = Jim_DuplicateObj(goi->interp, o);
1267 Jim_IncrRefCount(jteap->body);
1268
1269 /* add to head of event list */
1270 jteap->next = tap->event_action;
1271 tap->event_action = jteap;
1272 Jim_SetEmptyResult(goi->interp);
1273 } else {
1274 /* get */
1275 if (jteap == NULL) {
1276 Jim_SetEmptyResult(goi->interp);
1277 } else {
1278 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1279 }
1280 }
1281 }
1282 /* loop for more */
1283 break;
1284 }
1285 } /* while (goi->argc) */
1286
1287 return JIM_OK;
1288 }
1289
1290
1291 static void jtag_tap_init(jtag_tap_t *tap)
1292 {
1293 assert(0 != tap->ir_length);
1294
1295 tap->expected = malloc(tap->ir_length);
1296 tap->expected_mask = malloc(tap->ir_length);
1297 tap->cur_instr = malloc(tap->ir_length);
1298
1299 buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
1300 buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
1301 buf_set_ones(tap->cur_instr, tap->ir_length);
1302
1303 // place TAP in bypass mode
1304 tap->bypass = 1;
1305 // register the reset callback for the TAP
1306 jtag_register_event_callback(&jtag_reset_callback, tap);
1307
1308 LOG_DEBUG("Created Tap: %s @ abs position %d, "
1309 "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name,
1310 tap->abs_chain_position, tap->ir_length,
1311 tap->ir_capture_value, tap->ir_capture_mask);
1312 jtag_tap_add(tap);
1313 }
1314
1315 static void jtag_tap_free(jtag_tap_t *tap)
1316 {
1317 /// @todo is anything missing? no memory leaks please
1318 free((void *)tap->expected_ids);
1319 free((void *)tap->chip);
1320 free((void *)tap->tapname);
1321 free((void *)tap->dotted_name);
1322 free(tap);
1323 }
1324
1325 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1326 {
1327 jtag_tap_t *pTap;
1328 jim_wide w;
1329 int x;
1330 int e;
1331 int reqbits;
1332 Jim_Nvp *n;
1333 char *cp;
1334 const Jim_Nvp opts[] = {
1335 #define NTAP_OPT_IRLEN 0
1336 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1337 #define NTAP_OPT_IRMASK 1
1338 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1339 #define NTAP_OPT_IRCAPTURE 2
1340 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1341 #define NTAP_OPT_ENABLED 3
1342 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1343 #define NTAP_OPT_DISABLED 4
1344 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1345 #define NTAP_OPT_EXPECTED_ID 5
1346 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1347 { .name = NULL , .value = -1 },
1348 };
1349
1350 pTap = malloc( sizeof(jtag_tap_t) );
1351 memset( pTap, 0, sizeof(*pTap) );
1352 if( !pTap ){
1353 Jim_SetResult_sprintf( goi->interp, "no memory");
1354 return JIM_ERR;
1355 }
1356 /*
1357 * we expect CHIP + TAP + OPTIONS
1358 * */
1359 if( goi->argc < 3 ){
1360 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1361 return JIM_ERR;
1362 }
1363 Jim_GetOpt_String( goi, &cp, NULL );
1364 pTap->chip = strdup(cp);
1365
1366 Jim_GetOpt_String( goi, &cp, NULL );
1367 pTap->tapname = strdup(cp);
1368
1369 /* name + dot + name + null */
1370 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1371 cp = malloc( x );
1372 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1373 pTap->dotted_name = cp;
1374
1375 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1376 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1377
1378 /* default is enabled */
1379 pTap->enabled = 1;
1380
1381 /* deal with options */
1382 #define NTREQ_IRLEN 1
1383 #define NTREQ_IRCAPTURE 2
1384 #define NTREQ_IRMASK 4
1385
1386 /* clear them as we find them */
1387 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1388
1389 while( goi->argc ){
1390 e = Jim_GetOpt_Nvp( goi, opts, &n );
1391 if( e != JIM_OK ){
1392 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1393 return e;
1394 }
1395 LOG_DEBUG("Processing option: %s", n->name );
1396 switch( n->value ){
1397 case NTAP_OPT_ENABLED:
1398 pTap->enabled = 1;
1399 break;
1400 case NTAP_OPT_DISABLED:
1401 pTap->enabled = 0;
1402 break;
1403 case NTAP_OPT_EXPECTED_ID:
1404 {
1405 u32 *new_expected_ids;
1406
1407 e = Jim_GetOpt_Wide( goi, &w );
1408 if( e != JIM_OK) {
1409 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1410 return e;
1411 }
1412
1413 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1414 if (new_expected_ids == NULL) {
1415 Jim_SetResult_sprintf( goi->interp, "no memory");
1416 return JIM_ERR;
1417 }
1418
1419 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1420
1421 new_expected_ids[pTap->expected_ids_cnt] = w;
1422
1423 free(pTap->expected_ids);
1424 pTap->expected_ids = new_expected_ids;
1425 pTap->expected_ids_cnt++;
1426 break;
1427 }
1428 case NTAP_OPT_IRLEN:
1429 case NTAP_OPT_IRMASK:
1430 case NTAP_OPT_IRCAPTURE:
1431 e = Jim_GetOpt_Wide( goi, &w );
1432 if( e != JIM_OK ){
1433 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1434 return e;
1435 }
1436 if( (w < 0) || (w > 0xffff) ){
1437 /* wacky value */
1438 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1439 n->name, (int)(w), (int)(w));
1440 return JIM_ERR;
1441 }
1442 switch(n->value){
1443 case NTAP_OPT_IRLEN:
1444 pTap->ir_length = w;
1445 reqbits &= (~(NTREQ_IRLEN));
1446 break;
1447 case NTAP_OPT_IRMASK:
1448 pTap->ir_capture_mask = w;
1449 reqbits &= (~(NTREQ_IRMASK));
1450 break;
1451 case NTAP_OPT_IRCAPTURE:
1452 pTap->ir_capture_value = w;
1453 reqbits &= (~(NTREQ_IRCAPTURE));
1454 break;
1455 }
1456 } /* switch(n->value) */
1457 } /* while( goi->argc ) */
1458
1459 /* Did all the required option bits get cleared? */
1460 if (0 == reqbits)
1461 {
1462 jtag_tap_init(pTap);
1463 return ERROR_OK;
1464 }
1465
1466 Jim_SetResult_sprintf(goi->interp,
1467 "newtap: %s missing required parameters",
1468 pTap->dotted_name);
1469 jtag_tap_free(pTap);
1470 return JIM_ERR;
1471 }
1472
1473 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
1474 {
1475 Jim_GetOptInfo goi;
1476 int e;
1477 Jim_Nvp *n;
1478 Jim_Obj *o;
1479 struct command_context_s *context;
1480
1481 enum {
1482 JTAG_CMD_INTERFACE,
1483 JTAG_CMD_INIT_RESET,
1484 JTAG_CMD_NEWTAP,
1485 JTAG_CMD_TAPENABLE,
1486 JTAG_CMD_TAPDISABLE,
1487 JTAG_CMD_TAPISENABLED,
1488 JTAG_CMD_CONFIGURE,
1489 JTAG_CMD_CGET
1490 };
1491
1492 const Jim_Nvp jtag_cmds[] = {
1493 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
1494 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
1495 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
1496 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
1497 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
1498 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
1499 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
1500 { .name = "cget" , .value = JTAG_CMD_CGET },
1501
1502 { .name = NULL, .value = -1 },
1503 };
1504
1505 context = Jim_GetAssocData(interp, "context");
1506 /* go past the command */
1507 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
1508
1509 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
1510 if( e != JIM_OK ){
1511 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
1512 return e;
1513 }
1514 Jim_SetEmptyResult( goi.interp );
1515 switch( n->value ){
1516 case JTAG_CMD_INTERFACE:
1517 /* return the name of the interface */
1518 /* TCL code might need to know the exact type... */
1519 /* FUTURE: we allow this as a means to "set" the interface. */
1520 if( goi.argc != 0 ){
1521 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1522 return JIM_ERR;
1523 }
1524 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
1525 return JIM_OK;
1526 case JTAG_CMD_INIT_RESET:
1527 if( goi.argc != 0 ){
1528 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1529 return JIM_ERR;
1530 }
1531 e = jtag_init_reset(context);
1532 if( e != ERROR_OK ){
1533 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
1534 return JIM_ERR;
1535 }
1536 return JIM_OK;
1537 case JTAG_CMD_NEWTAP:
1538 return jim_newtap_cmd( &goi );
1539 break;
1540 case JTAG_CMD_TAPISENABLED:
1541 case JTAG_CMD_TAPENABLE:
1542 case JTAG_CMD_TAPDISABLE:
1543 if( goi.argc != 1 ){
1544 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
1545 return JIM_ERR;
1546 }
1547
1548 {
1549 jtag_tap_t *t;
1550 t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
1551 if( t == NULL ){
1552 return JIM_ERR;
1553 }
1554 switch( n->value ){
1555 case JTAG_CMD_TAPISENABLED:
1556 e = t->enabled;
1557 break;
1558 case JTAG_CMD_TAPENABLE:
1559 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
1560 e = 1;
1561 t->enabled = e;
1562 break;
1563 case JTAG_CMD_TAPDISABLE:
1564 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
1565 e = 0;
1566 t->enabled = e;
1567 break;
1568 }
1569 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
1570 return JIM_OK;
1571 }
1572 break;
1573
1574 case JTAG_CMD_CGET:
1575 if( goi.argc < 2 ){
1576 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
1577 return JIM_ERR;
1578 }
1579
1580 {
1581 jtag_tap_t *t;
1582
1583 Jim_GetOpt_Obj(&goi, &o);
1584 t = jtag_tap_by_jim_obj( goi.interp, o );
1585 if( t == NULL ){
1586 return JIM_ERR;
1587 }
1588
1589 goi.isconfigure = 0;
1590 return jtag_tap_configure_cmd( &goi, t);
1591 }
1592 break;
1593
1594 case JTAG_CMD_CONFIGURE:
1595 if( goi.argc < 3 ){
1596 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
1597 return JIM_ERR;
1598 }
1599
1600 {
1601 jtag_tap_t *t;
1602
1603 Jim_GetOpt_Obj(&goi, &o);
1604 t = jtag_tap_by_jim_obj( goi.interp, o );
1605 if( t == NULL ){
1606 return JIM_ERR;
1607 }
1608
1609 goi.isconfigure = 1;
1610 return jtag_tap_configure_cmd( &goi, t);
1611 }
1612 }
1613
1614 return JIM_ERR;
1615 }
1616
1617 int jtag_register_commands(struct command_context_s *cmd_ctx)
1618 {
1619 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
1620
1621 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1622 COMMAND_CONFIG, "try to configure interface");
1623 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1624 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
1625 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1626 COMMAND_ANY, "set maximum jtag speed (if supported); "
1627 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
1628 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1629 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
1630 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1631 COMMAND_ANY,
1632 "[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]");
1633 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1634 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1635 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1636 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1637
1638 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1639 COMMAND_EXEC, "print current scan chain configuration");
1640
1641 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1642 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1643 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1644 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1645 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1646 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1647 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1648 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1649 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1650 register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
1651
1652 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1653 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1654 register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
1655 COMMAND_ANY, "verify value capture <enable|disable>");
1656 register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
1657 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
1658 return ERROR_OK;
1659 }
1660
1661 int jtag_interface_init(struct command_context_s *cmd_ctx)
1662 {
1663 if (jtag)
1664 return ERROR_OK;
1665
1666 if (!jtag_interface)
1667 {
1668 /* nothing was previously specified by "interface" command */
1669 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1670 return ERROR_JTAG_INVALID_INTERFACE;
1671 }
1672 if(hasKHz)
1673 {
1674 jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed);
1675 hasKHz = false;
1676 }
1677
1678 if (jtag_interface->init() != ERROR_OK)
1679 return ERROR_JTAG_INIT_FAILED;
1680
1681 jtag = jtag_interface;
1682 return ERROR_OK;
1683 }
1684
1685 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1686 {
1687 jtag_tap_t *tap;
1688 int retval;
1689
1690 LOG_DEBUG("Init JTAG chain");
1691
1692 tap = jtag_tap_next_enabled(NULL);
1693 if( tap == NULL ){
1694 LOG_ERROR("There are no enabled taps?");
1695 return ERROR_JTAG_INIT_FAILED;
1696 }
1697
1698 jtag_add_tlr();
1699 if ((retval=jtag_execute_queue())!=ERROR_OK)
1700 return retval;
1701
1702 /* examine chain first, as this could discover the real chain layout */
1703 if (jtag_examine_chain() != ERROR_OK)
1704 {
1705 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1706 }
1707
1708 if (jtag_validate_chain() != ERROR_OK)
1709 {
1710 LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
1711 }
1712
1713 return ERROR_OK;
1714 }
1715
1716 int jtag_interface_quit(void)
1717 {
1718 if (!jtag || !jtag->quit)
1719 return ERROR_OK;
1720
1721 // close the JTAG interface
1722 int result = jtag->quit();
1723 if (ERROR_OK != result)
1724 LOG_ERROR("failed: %d", result);
1725
1726 return ERROR_OK;
1727 }
1728
1729
1730 int jtag_init_reset(struct command_context_s *cmd_ctx)
1731 {
1732 int retval;
1733
1734 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1735 return retval;
1736
1737 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
1738
1739 /* Reset can happen after a power cycle.
1740 *
1741 * Ideally we would only assert TRST or run RESET before the target reset.
1742 *
1743 * However w/srst_pulls_trst, trst is asserted together with the target
1744 * reset whether we want it or not.
1745 *
1746 * NB! Some targets have JTAG circuitry disabled until a
1747 * trst & srst has been asserted.
1748 *
1749 * NB! here we assume nsrst/ntrst delay are sufficient!
1750 *
1751 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1752 *
1753 */
1754 jtag_add_reset(1, 0); /* RESET or TRST */
1755 if (jtag_reset_config & RESET_HAS_SRST)
1756 {
1757 jtag_add_reset(1, 1);
1758 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1759 jtag_add_reset(0, 1);
1760 }
1761 jtag_add_reset(0, 0);
1762 if ((retval = jtag_execute_queue()) != ERROR_OK)
1763 return retval;
1764
1765 /* Check that we can communication on the JTAG chain + eventually we want to
1766 * be able to perform enumeration only after OpenOCD has started
1767 * telnet and GDB server
1768 *
1769 * That would allow users to more easily perform any magic they need to before
1770 * reset happens.
1771 */
1772 return jtag_init_inner(cmd_ctx);
1773 }
1774
1775 int jtag_init(struct command_context_s *cmd_ctx)
1776 {
1777 int retval;
1778 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1779 return retval;
1780 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1781 {
1782 return ERROR_OK;
1783 }
1784 return jtag_init_reset(cmd_ctx);
1785 }
1786
1787 void jtag_set_speed_khz(unsigned khz)
1788 {
1789 speed_khz = khz;
1790 }
1791 unsigned jtag_get_speed_khz(void)
1792 {
1793 return speed_khz;
1794 }
1795
1796 static int default_khz(int khz, int *jtag_speed)
1797 {
1798 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1799 return ERROR_FAIL;
1800 }
1801
1802 static int default_speed_div(int speed, int *khz)
1803 {
1804 LOG_ERROR("Translation from jtag_speed to khz not implemented");
1805 return ERROR_FAIL;
1806 }
1807
1808 static int default_power_dropout(int *dropout)
1809 {
1810 *dropout=0; /* by default we can't detect power dropout */
1811 return ERROR_OK;
1812 }
1813
1814 static int default_srst_asserted(int *srst_asserted)
1815 {
1816 *srst_asserted=0; /* by default we can't detect srst asserted */
1817 return ERROR_OK;
1818 }
1819
1820 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1821 {
1822 int i;
1823 int retval;
1824
1825 /* check whether the interface is already configured */
1826 if (jtag_interface)
1827 {
1828 LOG_WARNING("Interface already configured, ignoring");
1829 return ERROR_OK;
1830 }
1831
1832 /* interface name is a mandatory argument */
1833 if (argc < 1 || args[0][0] == '\0')
1834 {
1835 return ERROR_COMMAND_SYNTAX_ERROR;
1836 }
1837
1838 for (i=0; jtag_interfaces[i]; i++)
1839 {
1840 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1841 {
1842 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
1843 {
1844 return retval;
1845 }
1846
1847 jtag_interface = jtag_interfaces[i];
1848
1849 if (jtag_interface->khz == NULL)
1850 {
1851 jtag_interface->khz = default_khz;
1852 }
1853 if (jtag_interface->speed_div == NULL)
1854 {
1855 jtag_interface->speed_div = default_speed_div;
1856 }
1857 if (jtag_interface->power_dropout == NULL)
1858 {
1859 jtag_interface->power_dropout = default_power_dropout;
1860 }
1861 if (jtag_interface->srst_asserted == NULL)
1862 {
1863 jtag_interface->srst_asserted = default_srst_asserted;
1864 }
1865
1866 return ERROR_OK;
1867 }
1868 }
1869
1870 /* no valid interface was found (i.e. the configuration option,
1871 * didn't match one of the compiled-in interfaces
1872 */
1873 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1874 LOG_ERROR("compiled-in jtag interfaces:");
1875 for (i = 0; jtag_interfaces[i]; i++)
1876 {
1877 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1878 }
1879
1880 return ERROR_JTAG_INVALID_INTERFACE;
1881 }
1882
1883 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1884 {
1885 int e;
1886 char buf[1024];
1887 Jim_Obj *newargs[ 10 ];
1888 /*
1889 * CONVERT SYNTAX
1890 * argv[-1] = command
1891 * argv[ 0] = ir length
1892 * argv[ 1] = ir capture
1893 * argv[ 2] = ir mask
1894 * argv[ 3] = not actually used by anything but in the docs
1895 */
1896
1897 if( argc < 4 ){
1898 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
1899 return ERROR_OK;
1900 }
1901 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
1902 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
1903 args[0],
1904 args[1],
1905 args[2] );
1906 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
1907 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
1908 command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
1909 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
1910
1911 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
1912 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
1913 sprintf( buf, "chip%d", jtag_tap_count() );
1914 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
1915 sprintf( buf, "tap%d", jtag_tap_count() );
1916 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
1917 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
1918 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
1919 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
1920 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
1921 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
1922 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
1923
1924 command_print( cmd_ctx, "NEW COMMAND:");
1925 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
1926 Jim_GetString( newargs[0], NULL ),
1927 Jim_GetString( newargs[1], NULL ),
1928 Jim_GetString( newargs[2], NULL ),
1929 Jim_GetString( newargs[3], NULL ),
1930 Jim_GetString( newargs[4], NULL ),
1931 Jim_GetString( newargs[5], NULL ),
1932 Jim_GetString( newargs[6], NULL ),
1933 Jim_GetString( newargs[7], NULL ),
1934 Jim_GetString( newargs[8], NULL ),
1935 Jim_GetString( newargs[9], NULL ) );
1936
1937 e = jim_jtag_command( interp, 10, newargs );
1938 if( e != JIM_OK ){
1939 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
1940 }
1941 return e;
1942 }
1943
1944 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1945 {
1946 jtag_tap_t *tap;
1947
1948 tap = jtag_all_taps();
1949 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
1950 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
1951
1952 while( tap ){
1953 u32 expected, expected_mask, cur_instr, ii;
1954 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
1955 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
1956 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
1957
1958 command_print(cmd_ctx,
1959 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
1960 tap->abs_chain_position,
1961 tap->dotted_name,
1962 tap->enabled ? 'Y' : 'n',
1963 tap->idcode,
1964 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
1965 tap->ir_length,
1966 expected,
1967 expected_mask,
1968 cur_instr);
1969
1970 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
1971 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
1972 tap->expected_ids[ii]);
1973 }
1974
1975 tap = tap->next_tap;
1976 }
1977
1978 return ERROR_OK;
1979 }
1980
1981 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1982 {
1983 int new_cfg = 0;
1984 int mask = 0;
1985
1986 if (argc < 1)
1987 return ERROR_COMMAND_SYNTAX_ERROR;
1988
1989 /* Original versions cared about the order of these tokens:
1990 * reset_config signals [combination [trst_type [srst_type]]]
1991 * They also clobbered the previous configuration even on error.
1992 *
1993 * Here we don't care about the order, and only change values
1994 * which have been explicitly specified.
1995 */
1996 for (; argc; argc--, args++) {
1997 int tmp = 0;
1998 int m;
1999
2000 /* signals */
2001 m = RESET_HAS_TRST | RESET_HAS_SRST;
2002 if (strcmp(*args, "none") == 0)
2003 tmp = RESET_NONE;
2004 else if (strcmp(*args, "trst_only") == 0)
2005 tmp = RESET_HAS_TRST;
2006 else if (strcmp(*args, "srst_only") == 0)
2007 tmp = RESET_HAS_SRST;
2008 else if (strcmp(*args, "trst_and_srst") == 0)
2009 tmp = RESET_HAS_TRST | RESET_HAS_SRST;
2010 else
2011 m = 0;
2012 if (mask & m) {
2013 LOG_ERROR("extra reset_config %s spec (%s)",
2014 "signal", *args);
2015 return ERROR_INVALID_ARGUMENTS;
2016 }
2017 if (m)
2018 goto next;
2019
2020 /* combination (options for broken wiring) */
2021 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2022 if (strcmp(*args, "separate") == 0)
2023 /* separate reset lines - default */;
2024 else if (strcmp(*args, "srst_pulls_trst") == 0)
2025 tmp |= RESET_SRST_PULLS_TRST;
2026 else if (strcmp(*args, "trst_pulls_srst") == 0)
2027 tmp |= RESET_TRST_PULLS_SRST;
2028 else if (strcmp(*args, "combined") == 0)
2029 tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2030 else
2031 m = 0;
2032 if (mask & m) {
2033 LOG_ERROR("extra reset_config %s spec (%s)",
2034 "combination", *args);
2035 return ERROR_INVALID_ARGUMENTS;
2036 }
2037 if (m)
2038 goto next;
2039
2040 /* trst_type (NOP without HAS_TRST) */
2041 m = RESET_TRST_OPEN_DRAIN;
2042 if (strcmp(*args, "trst_open_drain") == 0)
2043 tmp |= RESET_TRST_OPEN_DRAIN;
2044 else if (strcmp(*args, "trst_push_pull") == 0)
2045 /* push/pull from adapter - default */;
2046 else
2047 m = 0;
2048 if (mask & m) {
2049 LOG_ERROR("extra reset_config %s spec (%s)",
2050 "trst_type", *args);
2051 return ERROR_INVALID_ARGUMENTS;
2052 }
2053 if (m)
2054 goto next;
2055
2056 /* srst_type (NOP without HAS_SRST) */
2057 m |= RESET_SRST_PUSH_PULL;
2058 if (strcmp(*args, "srst_push_pull") == 0)
2059 tmp |= RESET_SRST_PUSH_PULL;
2060 else if (strcmp(*args, "srst_open_drain") == 0)
2061 /* open drain from adapter - default */;
2062 else
2063 m = 0;
2064 if (mask & m) {
2065 LOG_ERROR("extra reset_config %s spec (%s)",
2066 "srst_type", *args);
2067 return ERROR_INVALID_ARGUMENTS;
2068 }
2069 if (m)
2070 goto next;
2071
2072 /* caller provided nonsense; fail */
2073 LOG_ERROR("unknown reset_config flag (%s)", *args);
2074 return ERROR_INVALID_ARGUMENTS;
2075
2076 next:
2077 /* Remember the bits which were specified (mask)
2078 * and their new values (new_cfg).
2079 */
2080 mask |= m;
2081 new_cfg |= tmp;
2082 }
2083
2084 /* clear previous values of those bits, save new values */
2085 jtag_reset_config &= ~mask;
2086 jtag_reset_config |= new_cfg;
2087
2088 return ERROR_OK;
2089 }
2090
2091 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2092 {
2093 if (argc < 1)
2094 {
2095 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
2096 exit(-1);
2097 }
2098 else
2099 {
2100 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
2101 }
2102
2103 return ERROR_OK;
2104 }
2105
2106 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2107 {
2108 if (argc < 1)
2109 {
2110 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
2111 exit(-1);
2112 }
2113 else
2114 {
2115 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
2116 }
2117
2118 return ERROR_OK;
2119 }
2120
2121
2122 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2123 {
2124 int retval=ERROR_OK;
2125
2126 if (argc == 1)
2127 {
2128 LOG_DEBUG("handle jtag speed");
2129
2130 int cur_speed = 0;
2131 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2132
2133 /* this command can be called during CONFIG,
2134 * in which case jtag isn't initialized */
2135 if (jtag)
2136 {
2137 retval=jtag->speed(cur_speed);
2138 }
2139 } else if (argc == 0)
2140 {
2141 } else
2142 {
2143 return ERROR_COMMAND_SYNTAX_ERROR;
2144 }
2145 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2146
2147 return retval;
2148 }
2149
2150 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2151 {
2152 int retval=ERROR_OK;
2153 LOG_DEBUG("handle jtag khz");
2154
2155 int cur_speed = 0;
2156 if(argc == 1)
2157 {
2158 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
2159 if (jtag != NULL)
2160 {
2161 LOG_DEBUG("have interface set up");
2162 int speed_div1;
2163 if ((retval=jtag->khz(jtag_get_speed_khz(), &speed_div1))!=ERROR_OK)
2164 {
2165 jtag_set_speed_khz(0);
2166 return retval;
2167 }
2168
2169 cur_speed = jtag_speed = speed_div1;
2170
2171 retval=jtag->speed(cur_speed);
2172 } else
2173 {
2174 hasKHz = true;
2175 }
2176 } else if (argc==0)
2177 {
2178 } else
2179 {
2180 return ERROR_COMMAND_SYNTAX_ERROR;
2181 }
2182 cur_speed = jtag_get_speed_khz();
2183
2184 if (jtag!=NULL)
2185 {
2186 if ((retval=jtag->speed_div(jtag_speed, &cur_speed))!=ERROR_OK)
2187 return retval;
2188 }
2189
2190 if (cur_speed)
2191 command_print(cmd_ctx, "%d kHz", cur_speed);
2192 else
2193 command_print(cmd_ctx, "RCLK - adaptive");
2194 return retval;
2195
2196 }
2197
2198 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2199 {
2200 if (argc < 1)
2201 return ERROR_COMMAND_SYNTAX_ERROR;
2202
2203 tap_state_t state = tap_state_by_name(args[0]);
2204 if (state < 0)
2205 {
2206 command_print( cmd_ctx, "Invalid state name: %s\n", args[0] );
2207 return ERROR_COMMAND_SYNTAX_ERROR;
2208 }
2209 jtag_set_end_state(state);
2210 jtag_execute_queue();
2211
2212 command_print(cmd_ctx, "current endstate: %s",
2213 tap_state_name(cmd_queue_end_state));
2214
2215 return ERROR_OK;
2216 }
2217
2218 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2219 {
2220 int trst = -1;
2221 int srst = -1;
2222
2223 if (argc < 2)
2224 {
2225 return ERROR_COMMAND_SYNTAX_ERROR;
2226 }
2227
2228 if (args[0][0] == '1')
2229 trst = 1;
2230 else if (args[0][0] == '0')
2231 trst = 0;
2232 else
2233 {
2234 return ERROR_COMMAND_SYNTAX_ERROR;
2235 }
2236
2237 if (args[1][0] == '1')
2238 srst = 1;
2239 else if (args[1][0] == '0')
2240 srst = 0;
2241 else
2242 {
2243 return ERROR_COMMAND_SYNTAX_ERROR;
2244 }
2245
2246 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2247 return ERROR_JTAG_INIT_FAILED;
2248
2249 jtag_add_reset(trst, srst);
2250 jtag_execute_queue();
2251
2252 return ERROR_OK;
2253 }
2254
2255 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2256 {
2257 if (argc < 1)
2258 {
2259 return ERROR_COMMAND_SYNTAX_ERROR;
2260 }
2261
2262 jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
2263 jtag_execute_queue();
2264
2265 return ERROR_OK;
2266
2267 }
2268
2269 /*
2270 * For "irscan" or "drscan" commands, the "end" (really, "next") state
2271 * should be stable ... and *NOT* a shift state, otherwise free-running
2272 * jtag clocks could change the values latched by the update state.
2273 */
2274 static bool scan_is_safe(tap_state_t state)
2275 {
2276 switch (state)
2277 {
2278 case TAP_RESET:
2279 case TAP_IDLE:
2280 case TAP_DRPAUSE:
2281 case TAP_IRPAUSE:
2282 return true;
2283 default:
2284 return false;
2285 }
2286 }
2287
2288
2289 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2290 {
2291 int i;
2292 scan_field_t *fields;
2293 jtag_tap_t *tap;
2294 tap_state_t endstate;
2295
2296 if ((argc < 2) || (argc % 2))
2297 {
2298 return ERROR_COMMAND_SYNTAX_ERROR;
2299 }
2300
2301 /* optional "-endstate" "statename" at the end of the arguments,
2302 * so that e.g. IRPAUSE can let us load the data register before
2303 * entering RUN/IDLE to execute the instruction we load here.
2304 */
2305 endstate = TAP_IDLE;
2306
2307 if( argc >= 4 ){
2308 /* have at least one pair of numbers. */
2309 /* is last pair the magic text? */
2310 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
2311 const char *cpA;
2312 const char *cpS;
2313 cpA = args[ argc-1 ];
2314 for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
2315 cpS = tap_state_name( endstate );
2316 if( 0 == strcmp( cpA, cpS ) ){
2317 break;
2318 }
2319 }
2320 if( endstate >= TAP_NUM_STATES ){
2321 return ERROR_COMMAND_SYNTAX_ERROR;
2322 } else {
2323 if (!scan_is_safe(endstate))
2324 LOG_WARNING("irscan with unsafe "
2325 "endstate \"%s\"", cpA);
2326 /* found - remove the last 2 args */
2327 argc -= 2;
2328 }
2329 }
2330 }
2331
2332 int num_fields = argc / 2;
2333
2334 fields = malloc(sizeof(scan_field_t) * num_fields);
2335
2336 for (i = 0; i < num_fields; i++)
2337 {
2338 tap = jtag_tap_by_string( args[i*2] );
2339 if (tap==NULL)
2340 {
2341 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2342 return ERROR_FAIL;
2343 }
2344 int field_size = tap->ir_length;
2345 fields[i].tap = tap;
2346 fields[i].num_bits = field_size;
2347 fields[i].out_value = malloc(CEIL(field_size, 8));
2348 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2349 fields[i].in_value = NULL;
2350 }
2351
2352 /* did we have an endstate? */
2353 jtag_add_ir_scan(num_fields, fields, endstate);
2354
2355 int retval=jtag_execute_queue();
2356
2357 for (i = 0; i < num_fields; i++)
2358 free(fields[i].out_value);
2359
2360 free (fields);
2361
2362 return retval;
2363 }
2364
2365 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2366 {
2367 int retval;
2368 scan_field_t *fields;
2369 int num_fields;
2370 int field_count = 0;
2371 int i, e;
2372 jtag_tap_t *tap;
2373 tap_state_t endstate;
2374
2375 /* args[1] = device
2376 * args[2] = num_bits
2377 * args[3] = hex string
2378 * ... repeat num bits and hex string ...
2379 *
2380 * .. optionally:
2381 * args[N-2] = "-endstate"
2382 * args[N-1] = statename
2383 */
2384 if ((argc < 4) || ((argc % 2)!=0))
2385 {
2386 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2387 return JIM_ERR;
2388 }
2389
2390 endstate = TAP_IDLE;
2391
2392 /* validate arguments as numbers */
2393 e = JIM_OK;
2394 for (i = 2; i < argc; i+=2)
2395 {
2396 long bits;
2397 const char *cp;
2398
2399 e = Jim_GetLong(interp, args[i], &bits);
2400 /* If valid - try next arg */
2401 if( e == JIM_OK ){
2402 continue;
2403 }
2404
2405 /* Not valid.. are we at the end? */
2406 if ( ((i+2) != argc) ){
2407 /* nope, then error */
2408 return e;
2409 }
2410
2411 /* it could be: "-endstate FOO"
2412 * e.g. DRPAUSE so we can issue more instructions
2413 * before entering RUN/IDLE and executing them.
2414 */
2415
2416 /* get arg as a string. */
2417 cp = Jim_GetString( args[i], NULL );
2418 /* is it the magic? */
2419 if( 0 == strcmp( "-endstate", cp ) ){
2420 /* is the statename valid? */
2421 cp = Jim_GetString( args[i+1], NULL );
2422
2423 /* see if it is a valid state name */
2424 endstate = tap_state_by_name(cp);
2425 if( endstate < 0 ){
2426 /* update the error message */
2427 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
2428 } else {
2429 if (!scan_is_safe(endstate))
2430 LOG_WARNING("drscan with unsafe "
2431 "endstate \"%s\"", cp);
2432
2433 /* valid - so clear the error */
2434 e = JIM_OK;
2435 /* and remove the last 2 args */
2436 argc -= 2;
2437 }
2438 }
2439
2440 /* Still an error? */
2441 if( e != JIM_OK ){
2442 return e; /* too bad */
2443 }
2444 } /* validate args */
2445
2446 tap = jtag_tap_by_jim_obj( interp, args[1] );
2447 if( tap == NULL ){
2448 return JIM_ERR;
2449 }
2450
2451 num_fields=(argc-2)/2;
2452 fields = malloc(sizeof(scan_field_t) * num_fields);
2453 for (i = 2; i < argc; i+=2)
2454 {
2455 long bits;
2456 int len;
2457 const char *str;
2458
2459 Jim_GetLong(interp, args[i], &bits);
2460 str = Jim_GetString(args[i+1], &len);
2461
2462 fields[field_count].tap = tap;
2463 fields[field_count].num_bits = bits;
2464 fields[field_count].out_value = malloc(CEIL(bits, 8));
2465 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2466 fields[field_count].in_value = fields[field_count].out_value;
2467 field_count++;
2468 }
2469
2470 jtag_add_dr_scan(num_fields, fields, endstate);
2471
2472 retval = jtag_execute_queue();
2473 if (retval != ERROR_OK)
2474 {
2475 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2476 return JIM_ERR;
2477 }
2478
2479 field_count=0;
2480 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2481 for (i = 2; i < argc; i+=2)
2482 {
2483 long bits;
2484 char *str;
2485
2486 Jim_GetLong(interp, args[i], &bits);
2487 str = buf_to_str(fields[field_count].in_value, bits, 16);
2488 free(fields[field_count].out_value);
2489
2490 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2491 free(str);
2492 field_count++;
2493 }
2494
2495 Jim_SetResult(interp, list);
2496
2497 free(fields);
2498
2499 return JIM_OK;
2500 }
2501
2502
2503 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2504 {
2505 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
2506
2507 return JIM_OK;
2508 }
2509
2510
2511 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2512 {
2513 if (argc == 1)
2514 {
2515 if (strcmp(args[0], "enable") == 0)
2516 {
2517 jtag_verify_capture_ir = 1;
2518 }
2519 else if (strcmp(args[0], "disable") == 0)
2520 {
2521 jtag_verify_capture_ir = 0;
2522 } else
2523 {
2524 return ERROR_COMMAND_SYNTAX_ERROR;
2525 }
2526 } else if (argc != 0)
2527 {
2528 return ERROR_COMMAND_SYNTAX_ERROR;
2529 }
2530
2531 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2532
2533 return ERROR_OK;
2534 }
2535
2536 void jtag_set_verify(bool enable)
2537 {
2538 jtag_verify = enable;
2539 }
2540
2541 bool jtag_will_verify()
2542 {
2543 return jtag_verify;
2544 }
2545
2546 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2547 {
2548 if (argc > 1)
2549 return ERROR_COMMAND_SYNTAX_ERROR;
2550
2551 if (argc == 1)
2552 {
2553 if (strcmp(args[0], "enable") == 0)
2554 jtag_set_verify(true);
2555 else if (strcmp(args[0], "disable") == 0)
2556 jtag_set_verify(false);
2557 else
2558 return ERROR_COMMAND_SYNTAX_ERROR;
2559 }
2560
2561 const char *status = jtag_will_verify() ? "enabled": "disabled";
2562 command_print(cmd_ctx, "verify jtag capture is %s", status);
2563
2564 return ERROR_OK;
2565 }
2566
2567
2568 int jtag_power_dropout(int *dropout)
2569 {
2570 return jtag->power_dropout(dropout);
2571 }
2572
2573 int jtag_srst_asserted(int *srst_asserted)
2574 {
2575 return jtag->srst_asserted(srst_asserted);
2576 }
2577
2578 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2579 {
2580 jtag_tap_event_action_t * jteap;
2581 int done;
2582
2583 jteap = tap->event_action;
2584
2585 done = 0;
2586 while (jteap) {
2587 if (jteap->event == e) {
2588 done = 1;
2589 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2590 tap->dotted_name,
2591 e,
2592 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2593 Jim_GetString(jteap->body, NULL) );
2594 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2595 Jim_PrintErrorMessage(interp);
2596 }
2597 }
2598
2599 jteap = jteap->next;
2600 }
2601
2602 if (!done) {
2603 LOG_DEBUG( "event %d %s - no action",
2604 e,
2605 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2606 }
2607 }
2608
2609 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2610 {
2611 if (argc > 1)
2612 return ERROR_COMMAND_SYNTAX_ERROR;
2613
2614 if (argc == 1)
2615 {
2616 bool use_new_table;
2617 if (strcmp(args[0], "short") == 0)
2618 use_new_table = true;
2619 else if (strcmp(args[0], "long") == 0)
2620 use_new_table = false;
2621 else
2622 return ERROR_COMMAND_SYNTAX_ERROR;
2623
2624 tap_use_new_tms_table(use_new_table);
2625 }
2626
2627 command_print(cmd_ctx, "tms sequence is %s",
2628 tap_uses_new_tms_table() ? "short": "long");
2629
2630 return ERROR_OK;
2631 }
2632
2633 /**
2634 * Function jtag_add_statemove
2635 * moves from the current state to the goal \a state. This needs
2636 * to be handled according to the xsvf spec, see the XSTATE command
2637 * description.
2638 */
2639 int jtag_add_statemove(tap_state_t goal_state)
2640 {
2641 int retval = ERROR_OK;
2642
2643 tap_state_t moves[8];
2644 tap_state_t cur_state = cmd_queue_cur_state;
2645 int i;
2646 int tms_bits;
2647 int tms_count;
2648
2649 LOG_DEBUG( "cur_state=%s goal_state=%s",
2650 tap_state_name(cur_state),
2651 tap_state_name(goal_state) );
2652
2653
2654 /* From the XSVF spec, pertaining to XSTATE:
2655
2656 For special states known as stable states (Test-Logic-Reset,
2657 Run-Test/Idle, Pause-DR, Pause- IR), an XSVF interpreter follows
2658 predefined TAP state paths when the starting state is a stable state and
2659 when the XSTATE specifies a new stable state (see the STATE command in
2660 the [Ref 5] for the TAP state paths between stable states). For
2661 non-stable states, XSTATE should specify a state that is only one TAP
2662 state transition distance from the current TAP state to avoid undefined
2663 TAP state paths. A sequence of multiple XSTATE commands can be issued to
2664 transition the TAP through a specific state path.
2665 */
2666
2667 if (goal_state==cur_state )
2668 ; /* nothing to do */
2669
2670 else if( goal_state==TAP_RESET )
2671 {
2672 jtag_add_tlr();
2673 }
2674
2675 else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) )
2676 {
2677 /* note: unless tms_bits holds a path that agrees with [Ref 5] in above
2678 spec, then this code is not fully conformant to the xsvf spec. This
2679 puts a burden on tap_get_tms_path() function from the xsvf spec.
2680 If in doubt, you should confirm that that burden is being met.
2681 */
2682
2683 tms_bits = tap_get_tms_path(cur_state, goal_state);
2684 tms_count = tap_get_tms_path_len(cur_state, goal_state);
2685
2686 assert( (unsigned) tms_count < DIM(moves) );
2687
2688 for (i=0; i<tms_count; i++, tms_bits>>=1)
2689 {
2690 bool bit = tms_bits & 1;
2691
2692 cur_state = tap_state_transition(cur_state, bit);
2693 moves[i] = cur_state;
2694 }
2695
2696 jtag_add_pathmove(tms_count, moves);
2697 }
2698
2699 /* else state must be immediately reachable in one clock cycle, and does not
2700 need to be a stable state.
2701 */
2702 else if( tap_state_transition(cur_state, true) == goal_state
2703 || tap_state_transition(cur_state, false) == goal_state )
2704 {
2705 /* move a single state */
2706 moves[0] = goal_state;
2707 jtag_add_pathmove( 1, moves );
2708 }
2709
2710 else
2711 {
2712 retval = ERROR_FAIL;
2713 }
2714
2715 return retval;
2716 }
2717
2718 void jtag_set_nsrst_delay(unsigned delay)
2719 {
2720 jtag_nsrst_delay = delay;
2721 }
2722 void jtag_set_ntrst_delay(unsigned delay)
2723 {
2724 jtag_ntrst_delay = delay;
2725 }
2726
2727
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SSH host keys fingerprints

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)