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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 unsigned jtag_tap_count_enabled(void)
246 {
247 jtag_tap_t *t;
248 unsigned 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 static bool jtag_examine_chain_match_tap(const struct jtag_tap_s *tap)
1025 {
1026 if (0 == tap->expected_ids_cnt)
1027 {
1028 /// @todo Enable LOG_INFO to ask for reports about unknown TAP IDs.
1029 #if 0
1030 LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode)
1031 LOG_INFO("Please report the chip name and reported ID code to the openocd project");
1032 #endif
1033 return true;
1034 }
1035
1036 /* Loop over the expected identification codes and test for a match */
1037 u8 ii;
1038 for (ii = 0; ii < tap->expected_ids_cnt; ii++)
1039 {
1040 if (tap->idcode == tap->expected_ids[ii])
1041 break;
1042 }
1043
1044 /* If none of the expected ids matched, log an error */
1045 if (ii != tap->expected_ids_cnt)
1046 {
1047 LOG_INFO("JTAG Tap/device matched");
1048 return true;
1049 }
1050 jtag_examine_chain_display(LOG_LVL_ERROR, "got",
1051 tap->dotted_name, tap->idcode);
1052 for (ii = 0; ii < tap->expected_ids_cnt; ii++)
1053 {
1054 char msg[32];
1055 snprintf(msg, sizeof(msg), "expected %hhu of %hhu",
1056 ii + 1, tap->expected_ids_cnt);
1057 jtag_examine_chain_display(LOG_LVL_ERROR, msg,
1058 tap->dotted_name, tap->expected_ids[ii]);
1059 }
1060 return false;
1061 }
1062
1063 /* Try to examine chain layout according to IEEE 1149.1 §12
1064 */
1065 static int jtag_examine_chain(void)
1066 {
1067 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1068 unsigned device_count = 0;
1069
1070 jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE);
1071
1072 if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE))
1073 return ERROR_JTAG_INIT_FAILED;
1074
1075 /* point at the 1st tap */
1076 jtag_tap_t *tap = jtag_tap_next_enabled(NULL);
1077 if (tap == NULL)
1078 {
1079 LOG_ERROR("JTAG: No taps enabled?");
1080 return ERROR_JTAG_INIT_FAILED;
1081 }
1082
1083 for (unsigned bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1084 {
1085 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1086 if ((idcode & 1) == 0)
1087 {
1088 /* LSB must not be 0, this indicates a device in bypass */
1089 LOG_WARNING("Tap/Device does not have IDCODE");
1090 idcode = 0;
1091
1092 bit_count += 1;
1093 }
1094 else
1095 {
1096 /*
1097 * End of chain (invalid manufacturer ID) some devices, such
1098 * as AVR will output all 1's instead of TDI input value at
1099 * end of chain.
1100 */
1101 if (jtag_idcode_is_final(idcode))
1102 {
1103 jtag_examine_chain_end(idcode_buffer,
1104 bit_count + 32, JTAG_MAX_CHAIN_SIZE * 32);
1105 break;
1106 }
1107
1108 jtag_examine_chain_display(LOG_LVL_INFO, "tap/device found",
1109 tap ? tap->dotted_name : "(not-named)",
1110 idcode);
1111
1112 bit_count += 32;
1113 }
1114 device_count++;
1115 if (!tap)
1116 continue;
1117
1118 tap->idcode = idcode;
1119
1120 // ensure the TAP ID does matches what was expected
1121 if (!jtag_examine_chain_match_tap(tap))
1122 return ERROR_JTAG_INIT_FAILED;
1123
1124 tap = jtag_tap_next_enabled(tap);
1125 }
1126
1127 /* see if number of discovered devices matches configuration */
1128 if (device_count != jtag_tap_count_enabled())
1129 {
1130 LOG_ERROR("number of discovered devices in JTAG chain (%i) "
1131 "does not match (enabled) configuration (%i), total taps: %d",
1132 device_count, jtag_tap_count_enabled(), jtag_tap_count());
1133 LOG_ERROR("check the config file and ensure proper JTAG communication"
1134 " (connections, speed, ...)");
1135 return ERROR_JTAG_INIT_FAILED;
1136 }
1137
1138 return ERROR_OK;
1139 }
1140
1141 static int jtag_validate_chain(void)
1142 {
1143 jtag_tap_t *tap;
1144 int total_ir_length = 0;
1145 u8 *ir_test = NULL;
1146 scan_field_t field;
1147 int chain_pos = 0;
1148
1149 tap = NULL;
1150 total_ir_length = 0;
1151 for(;;){
1152 tap = jtag_tap_next_enabled(tap);
1153 if( tap == NULL ){
1154 break;
1155 }
1156 total_ir_length += tap->ir_length;
1157 }
1158
1159 total_ir_length += 2;
1160 ir_test = malloc(CEIL(total_ir_length, 8));
1161 buf_set_ones(ir_test, total_ir_length);
1162
1163 field.tap = NULL;
1164 field.num_bits = total_ir_length;
1165 field.out_value = ir_test;
1166 field.in_value = ir_test;
1167
1168
1169 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1170 jtag_execute_queue();
1171
1172 tap = NULL;
1173 chain_pos = 0;
1174 int val;
1175 for(;;){
1176 tap = jtag_tap_next_enabled(tap);
1177 if( tap == NULL ){
1178 break;
1179 }
1180
1181 val = buf_get_u32(ir_test, chain_pos, 2);
1182 if (val != 0x1)
1183 {
1184 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1185 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);
1186 free(cbuf);
1187 free(ir_test);
1188 return ERROR_JTAG_INIT_FAILED;
1189 }
1190 chain_pos += tap->ir_length;
1191 }
1192
1193 val = buf_get_u32(ir_test, chain_pos, 2);
1194 if (val != 0x3)
1195 {
1196 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1197 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);
1198 free(cbuf);
1199 free(ir_test);
1200 return ERROR_JTAG_INIT_FAILED;
1201 }
1202
1203 free(ir_test);
1204
1205 return ERROR_OK;
1206 }
1207
1208 enum jtag_tap_cfg_param {
1209 JCFG_EVENT
1210 };
1211
1212 static Jim_Nvp nvp_config_opts[] = {
1213 { .name = "-event", .value = JCFG_EVENT },
1214
1215 { .name = NULL, .value = -1 }
1216 };
1217
1218 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
1219 {
1220 Jim_Nvp *n;
1221 Jim_Obj *o;
1222 int e;
1223
1224 /* parse config or cget options */
1225 while (goi->argc > 0) {
1226 Jim_SetEmptyResult (goi->interp);
1227
1228 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1229 if (e != JIM_OK) {
1230 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1231 return e;
1232 }
1233
1234 switch (n->value) {
1235 case JCFG_EVENT:
1236 if (goi->argc == 0) {
1237 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1238 return JIM_ERR;
1239 }
1240
1241 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1242 if (e != JIM_OK) {
1243 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1244 return e;
1245 }
1246
1247 if (goi->isconfigure) {
1248 if (goi->argc != 1) {
1249 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1250 return JIM_ERR;
1251 }
1252 } else {
1253 if (goi->argc != 0) {
1254 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1255 return JIM_ERR;
1256 }
1257 }
1258
1259 {
1260 jtag_tap_event_action_t *jteap;
1261
1262 jteap = tap->event_action;
1263 /* replace existing? */
1264 while (jteap) {
1265 if (jteap->event == (enum jtag_tap_event)n->value) {
1266 break;
1267 }
1268 jteap = jteap->next;
1269 }
1270
1271 if (goi->isconfigure) {
1272 if (jteap == NULL) {
1273 /* create new */
1274 jteap = calloc(1, sizeof (*jteap));
1275 }
1276 jteap->event = n->value;
1277 Jim_GetOpt_Obj( goi, &o);
1278 if (jteap->body) {
1279 Jim_DecrRefCount(interp, jteap->body);
1280 }
1281 jteap->body = Jim_DuplicateObj(goi->interp, o);
1282 Jim_IncrRefCount(jteap->body);
1283
1284 /* add to head of event list */
1285 jteap->next = tap->event_action;
1286 tap->event_action = jteap;
1287 Jim_SetEmptyResult(goi->interp);
1288 } else {
1289 /* get */
1290 if (jteap == NULL) {
1291 Jim_SetEmptyResult(goi->interp);
1292 } else {
1293 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1294 }
1295 }
1296 }
1297 /* loop for more */
1298 break;
1299 }
1300 } /* while (goi->argc) */
1301
1302 return JIM_OK;
1303 }
1304
1305
1306 static void jtag_tap_init(jtag_tap_t *tap)
1307 {
1308 assert(0 != tap->ir_length);
1309
1310 tap->expected = malloc(tap->ir_length);
1311 tap->expected_mask = malloc(tap->ir_length);
1312 tap->cur_instr = malloc(tap->ir_length);
1313
1314 buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
1315 buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
1316 buf_set_ones(tap->cur_instr, tap->ir_length);
1317
1318 // place TAP in bypass mode
1319 tap->bypass = 1;
1320 // register the reset callback for the TAP
1321 jtag_register_event_callback(&jtag_reset_callback, tap);
1322
1323 LOG_DEBUG("Created Tap: %s @ abs position %d, "
1324 "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name,
1325 tap->abs_chain_position, tap->ir_length,
1326 tap->ir_capture_value, tap->ir_capture_mask);
1327 jtag_tap_add(tap);
1328 }
1329
1330 static void jtag_tap_free(jtag_tap_t *tap)
1331 {
1332 /// @todo is anything missing? no memory leaks please
1333 free((void *)tap->expected_ids);
1334 free((void *)tap->chip);
1335 free((void *)tap->tapname);
1336 free((void *)tap->dotted_name);
1337 free(tap);
1338 }
1339
1340 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1341 {
1342 jtag_tap_t *pTap;
1343 jim_wide w;
1344 int x;
1345 int e;
1346 int reqbits;
1347 Jim_Nvp *n;
1348 char *cp;
1349 const Jim_Nvp opts[] = {
1350 #define NTAP_OPT_IRLEN 0
1351 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1352 #define NTAP_OPT_IRMASK 1
1353 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1354 #define NTAP_OPT_IRCAPTURE 2
1355 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1356 #define NTAP_OPT_ENABLED 3
1357 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1358 #define NTAP_OPT_DISABLED 4
1359 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1360 #define NTAP_OPT_EXPECTED_ID 5
1361 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1362 { .name = NULL , .value = -1 },
1363 };
1364
1365 pTap = malloc( sizeof(jtag_tap_t) );
1366 memset( pTap, 0, sizeof(*pTap) );
1367 if( !pTap ){
1368 Jim_SetResult_sprintf( goi->interp, "no memory");
1369 return JIM_ERR;
1370 }
1371 /*
1372 * we expect CHIP + TAP + OPTIONS
1373 * */
1374 if( goi->argc < 3 ){
1375 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1376 return JIM_ERR;
1377 }
1378 Jim_GetOpt_String( goi, &cp, NULL );
1379 pTap->chip = strdup(cp);
1380
1381 Jim_GetOpt_String( goi, &cp, NULL );
1382 pTap->tapname = strdup(cp);
1383
1384 /* name + dot + name + null */
1385 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1386 cp = malloc( x );
1387 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1388 pTap->dotted_name = cp;
1389
1390 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1391 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1392
1393 /* default is enabled */
1394 pTap->enabled = 1;
1395
1396 /* deal with options */
1397 #define NTREQ_IRLEN 1
1398 #define NTREQ_IRCAPTURE 2
1399 #define NTREQ_IRMASK 4
1400
1401 /* clear them as we find them */
1402 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1403
1404 while( goi->argc ){
1405 e = Jim_GetOpt_Nvp( goi, opts, &n );
1406 if( e != JIM_OK ){
1407 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1408 return e;
1409 }
1410 LOG_DEBUG("Processing option: %s", n->name );
1411 switch( n->value ){
1412 case NTAP_OPT_ENABLED:
1413 pTap->enabled = 1;
1414 break;
1415 case NTAP_OPT_DISABLED:
1416 pTap->enabled = 0;
1417 break;
1418 case NTAP_OPT_EXPECTED_ID:
1419 {
1420 u32 *new_expected_ids;
1421
1422 e = Jim_GetOpt_Wide( goi, &w );
1423 if( e != JIM_OK) {
1424 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1425 return e;
1426 }
1427
1428 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1429 if (new_expected_ids == NULL) {
1430 Jim_SetResult_sprintf( goi->interp, "no memory");
1431 return JIM_ERR;
1432 }
1433
1434 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1435
1436 new_expected_ids[pTap->expected_ids_cnt] = w;
1437
1438 free(pTap->expected_ids);
1439 pTap->expected_ids = new_expected_ids;
1440 pTap->expected_ids_cnt++;
1441 break;
1442 }
1443 case NTAP_OPT_IRLEN:
1444 case NTAP_OPT_IRMASK:
1445 case NTAP_OPT_IRCAPTURE:
1446 e = Jim_GetOpt_Wide( goi, &w );
1447 if( e != JIM_OK ){
1448 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1449 return e;
1450 }
1451 if( (w < 0) || (w > 0xffff) ){
1452 /* wacky value */
1453 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1454 n->name, (int)(w), (int)(w));
1455 return JIM_ERR;
1456 }
1457 switch(n->value){
1458 case NTAP_OPT_IRLEN:
1459 pTap->ir_length = w;
1460 reqbits &= (~(NTREQ_IRLEN));
1461 break;
1462 case NTAP_OPT_IRMASK:
1463 pTap->ir_capture_mask = w;
1464 reqbits &= (~(NTREQ_IRMASK));
1465 break;
1466 case NTAP_OPT_IRCAPTURE:
1467 pTap->ir_capture_value = w;
1468 reqbits &= (~(NTREQ_IRCAPTURE));
1469 break;
1470 }
1471 } /* switch(n->value) */
1472 } /* while( goi->argc ) */
1473
1474 /* Did all the required option bits get cleared? */
1475 if (0 == reqbits)
1476 {
1477 jtag_tap_init(pTap);
1478 return ERROR_OK;
1479 }
1480
1481 Jim_SetResult_sprintf(goi->interp,
1482 "newtap: %s missing required parameters",
1483 pTap->dotted_name);
1484 jtag_tap_free(pTap);
1485 return JIM_ERR;
1486 }
1487
1488 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
1489 {
1490 Jim_GetOptInfo goi;
1491 int e;
1492 Jim_Nvp *n;
1493 Jim_Obj *o;
1494 struct command_context_s *context;
1495
1496 enum {
1497 JTAG_CMD_INTERFACE,
1498 JTAG_CMD_INIT_RESET,
1499 JTAG_CMD_NEWTAP,
1500 JTAG_CMD_TAPENABLE,
1501 JTAG_CMD_TAPDISABLE,
1502 JTAG_CMD_TAPISENABLED,
1503 JTAG_CMD_CONFIGURE,
1504 JTAG_CMD_CGET
1505 };
1506
1507 const Jim_Nvp jtag_cmds[] = {
1508 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
1509 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
1510 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
1511 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
1512 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
1513 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
1514 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
1515 { .name = "cget" , .value = JTAG_CMD_CGET },
1516
1517 { .name = NULL, .value = -1 },
1518 };
1519
1520 context = Jim_GetAssocData(interp, "context");
1521 /* go past the command */
1522 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
1523
1524 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
1525 if( e != JIM_OK ){
1526 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
1527 return e;
1528 }
1529 Jim_SetEmptyResult( goi.interp );
1530 switch( n->value ){
1531 case JTAG_CMD_INTERFACE:
1532 /* return the name of the interface */
1533 /* TCL code might need to know the exact type... */
1534 /* FUTURE: we allow this as a means to "set" the interface. */
1535 if( goi.argc != 0 ){
1536 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1537 return JIM_ERR;
1538 }
1539 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
1540 return JIM_OK;
1541 case JTAG_CMD_INIT_RESET:
1542 if( goi.argc != 0 ){
1543 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1544 return JIM_ERR;
1545 }
1546 e = jtag_init_reset(context);
1547 if( e != ERROR_OK ){
1548 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
1549 return JIM_ERR;
1550 }
1551 return JIM_OK;
1552 case JTAG_CMD_NEWTAP:
1553 return jim_newtap_cmd( &goi );
1554 break;
1555 case JTAG_CMD_TAPISENABLED:
1556 case JTAG_CMD_TAPENABLE:
1557 case JTAG_CMD_TAPDISABLE:
1558 if( goi.argc != 1 ){
1559 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
1560 return JIM_ERR;
1561 }
1562
1563 {
1564 jtag_tap_t *t;
1565 t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
1566 if( t == NULL ){
1567 return JIM_ERR;
1568 }
1569 switch( n->value ){
1570 case JTAG_CMD_TAPISENABLED:
1571 e = t->enabled;
1572 break;
1573 case JTAG_CMD_TAPENABLE:
1574 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
1575 e = 1;
1576 t->enabled = e;
1577 break;
1578 case JTAG_CMD_TAPDISABLE:
1579 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
1580 e = 0;
1581 t->enabled = e;
1582 break;
1583 }
1584 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
1585 return JIM_OK;
1586 }
1587 break;
1588
1589 case JTAG_CMD_CGET:
1590 if( goi.argc < 2 ){
1591 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
1592 return JIM_ERR;
1593 }
1594
1595 {
1596 jtag_tap_t *t;
1597
1598 Jim_GetOpt_Obj(&goi, &o);
1599 t = jtag_tap_by_jim_obj( goi.interp, o );
1600 if( t == NULL ){
1601 return JIM_ERR;
1602 }
1603
1604 goi.isconfigure = 0;
1605 return jtag_tap_configure_cmd( &goi, t);
1606 }
1607 break;
1608
1609 case JTAG_CMD_CONFIGURE:
1610 if( goi.argc < 3 ){
1611 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
1612 return JIM_ERR;
1613 }
1614
1615 {
1616 jtag_tap_t *t;
1617
1618 Jim_GetOpt_Obj(&goi, &o);
1619 t = jtag_tap_by_jim_obj( goi.interp, o );
1620 if( t == NULL ){
1621 return JIM_ERR;
1622 }
1623
1624 goi.isconfigure = 1;
1625 return jtag_tap_configure_cmd( &goi, t);
1626 }
1627 }
1628
1629 return JIM_ERR;
1630 }
1631
1632 int jtag_register_commands(struct command_context_s *cmd_ctx)
1633 {
1634 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
1635
1636 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1637 COMMAND_CONFIG, "try to configure interface");
1638 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1639 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
1640 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1641 COMMAND_ANY, "set maximum jtag speed (if supported); "
1642 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
1643 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1644 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
1645 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1646 COMMAND_ANY,
1647 "[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]");
1648 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1649 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1650 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1651 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1652
1653 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1654 COMMAND_EXEC, "print current scan chain configuration");
1655
1656 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1657 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1658 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1659 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1660 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1661 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1662 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1663 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1664 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1665 register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
1666
1667 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1668 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1669 register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
1670 COMMAND_ANY, "verify value capture <enable|disable>");
1671 register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
1672 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
1673 return ERROR_OK;
1674 }
1675
1676 int jtag_interface_init(struct command_context_s *cmd_ctx)
1677 {
1678 if (jtag)
1679 return ERROR_OK;
1680
1681 if (!jtag_interface)
1682 {
1683 /* nothing was previously specified by "interface" command */
1684 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1685 return ERROR_JTAG_INVALID_INTERFACE;
1686 }
1687 if(hasKHz)
1688 {
1689 jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed);
1690 hasKHz = false;
1691 }
1692
1693 if (jtag_interface->init() != ERROR_OK)
1694 return ERROR_JTAG_INIT_FAILED;
1695
1696 jtag = jtag_interface;
1697 return ERROR_OK;
1698 }
1699
1700 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1701 {
1702 jtag_tap_t *tap;
1703 int retval;
1704
1705 LOG_DEBUG("Init JTAG chain");
1706
1707 tap = jtag_tap_next_enabled(NULL);
1708 if( tap == NULL ){
1709 LOG_ERROR("There are no enabled taps?");
1710 return ERROR_JTAG_INIT_FAILED;
1711 }
1712
1713 jtag_add_tlr();
1714 if ((retval=jtag_execute_queue())!=ERROR_OK)
1715 return retval;
1716
1717 /* examine chain first, as this could discover the real chain layout */
1718 if (jtag_examine_chain() != ERROR_OK)
1719 {
1720 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1721 }
1722
1723 if (jtag_validate_chain() != ERROR_OK)
1724 {
1725 LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
1726 }
1727
1728 return ERROR_OK;
1729 }
1730
1731 int jtag_interface_quit(void)
1732 {
1733 if (!jtag || !jtag->quit)
1734 return ERROR_OK;
1735
1736 // close the JTAG interface
1737 int result = jtag->quit();
1738 if (ERROR_OK != result)
1739 LOG_ERROR("failed: %d", result);
1740
1741 return ERROR_OK;
1742 }
1743
1744
1745 int jtag_init_reset(struct command_context_s *cmd_ctx)
1746 {
1747 int retval;
1748
1749 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1750 return retval;
1751
1752 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
1753
1754 /* Reset can happen after a power cycle.
1755 *
1756 * Ideally we would only assert TRST or run RESET before the target reset.
1757 *
1758 * However w/srst_pulls_trst, trst is asserted together with the target
1759 * reset whether we want it or not.
1760 *
1761 * NB! Some targets have JTAG circuitry disabled until a
1762 * trst & srst has been asserted.
1763 *
1764 * NB! here we assume nsrst/ntrst delay are sufficient!
1765 *
1766 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1767 *
1768 */
1769 jtag_add_reset(1, 0); /* RESET or TRST */
1770 if (jtag_reset_config & RESET_HAS_SRST)
1771 {
1772 jtag_add_reset(1, 1);
1773 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1774 jtag_add_reset(0, 1);
1775 }
1776 jtag_add_reset(0, 0);
1777 if ((retval = jtag_execute_queue()) != ERROR_OK)
1778 return retval;
1779
1780 /* Check that we can communication on the JTAG chain + eventually we want to
1781 * be able to perform enumeration only after OpenOCD has started
1782 * telnet and GDB server
1783 *
1784 * That would allow users to more easily perform any magic they need to before
1785 * reset happens.
1786 */
1787 return jtag_init_inner(cmd_ctx);
1788 }
1789
1790 int jtag_init(struct command_context_s *cmd_ctx)
1791 {
1792 int retval;
1793 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1794 return retval;
1795 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1796 {
1797 return ERROR_OK;
1798 }
1799 return jtag_init_reset(cmd_ctx);
1800 }
1801
1802 void jtag_set_speed_khz(unsigned khz)
1803 {
1804 speed_khz = khz;
1805 }
1806 unsigned jtag_get_speed_khz(void)
1807 {
1808 return speed_khz;
1809 }
1810
1811 static int default_khz(int khz, int *jtag_speed)
1812 {
1813 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1814 return ERROR_FAIL;
1815 }
1816
1817 static int default_speed_div(int speed, int *khz)
1818 {
1819 LOG_ERROR("Translation from jtag_speed to khz not implemented");
1820 return ERROR_FAIL;
1821 }
1822
1823 static int default_power_dropout(int *dropout)
1824 {
1825 *dropout=0; /* by default we can't detect power dropout */
1826 return ERROR_OK;
1827 }
1828
1829 static int default_srst_asserted(int *srst_asserted)
1830 {
1831 *srst_asserted=0; /* by default we can't detect srst asserted */
1832 return ERROR_OK;
1833 }
1834
1835 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1836 {
1837 int i;
1838 int retval;
1839
1840 /* check whether the interface is already configured */
1841 if (jtag_interface)
1842 {
1843 LOG_WARNING("Interface already configured, ignoring");
1844 return ERROR_OK;
1845 }
1846
1847 /* interface name is a mandatory argument */
1848 if (argc < 1 || args[0][0] == '\0')
1849 {
1850 return ERROR_COMMAND_SYNTAX_ERROR;
1851 }
1852
1853 for (i=0; jtag_interfaces[i]; i++)
1854 {
1855 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1856 {
1857 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
1858 {
1859 return retval;
1860 }
1861
1862 jtag_interface = jtag_interfaces[i];
1863
1864 if (jtag_interface->khz == NULL)
1865 {
1866 jtag_interface->khz = default_khz;
1867 }
1868 if (jtag_interface->speed_div == NULL)
1869 {
1870 jtag_interface->speed_div = default_speed_div;
1871 }
1872 if (jtag_interface->power_dropout == NULL)
1873 {
1874 jtag_interface->power_dropout = default_power_dropout;
1875 }
1876 if (jtag_interface->srst_asserted == NULL)
1877 {
1878 jtag_interface->srst_asserted = default_srst_asserted;
1879 }
1880
1881 return ERROR_OK;
1882 }
1883 }
1884
1885 /* no valid interface was found (i.e. the configuration option,
1886 * didn't match one of the compiled-in interfaces
1887 */
1888 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1889 LOG_ERROR("compiled-in jtag interfaces:");
1890 for (i = 0; jtag_interfaces[i]; i++)
1891 {
1892 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1893 }
1894
1895 return ERROR_JTAG_INVALID_INTERFACE;
1896 }
1897
1898 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1899 {
1900 int e;
1901 char buf[1024];
1902 Jim_Obj *newargs[ 10 ];
1903 /*
1904 * CONVERT SYNTAX
1905 * argv[-1] = command
1906 * argv[ 0] = ir length
1907 * argv[ 1] = ir capture
1908 * argv[ 2] = ir mask
1909 * argv[ 3] = not actually used by anything but in the docs
1910 */
1911
1912 if( argc < 4 ){
1913 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
1914 return ERROR_OK;
1915 }
1916 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
1917 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
1918 args[0],
1919 args[1],
1920 args[2] );
1921 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
1922 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
1923 command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
1924 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
1925
1926 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
1927 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
1928 sprintf( buf, "chip%d", jtag_tap_count() );
1929 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
1930 sprintf( buf, "tap%d", jtag_tap_count() );
1931 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
1932 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
1933 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
1934 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
1935 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
1936 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
1937 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
1938
1939 command_print( cmd_ctx, "NEW COMMAND:");
1940 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
1941 Jim_GetString( newargs[0], NULL ),
1942 Jim_GetString( newargs[1], NULL ),
1943 Jim_GetString( newargs[2], NULL ),
1944 Jim_GetString( newargs[3], NULL ),
1945 Jim_GetString( newargs[4], NULL ),
1946 Jim_GetString( newargs[5], NULL ),
1947 Jim_GetString( newargs[6], NULL ),
1948 Jim_GetString( newargs[7], NULL ),
1949 Jim_GetString( newargs[8], NULL ),
1950 Jim_GetString( newargs[9], NULL ) );
1951
1952 e = jim_jtag_command( interp, 10, newargs );
1953 if( e != JIM_OK ){
1954 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
1955 }
1956 return e;
1957 }
1958
1959 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1960 {
1961 jtag_tap_t *tap;
1962
1963 tap = jtag_all_taps();
1964 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
1965 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
1966
1967 while( tap ){
1968 u32 expected, expected_mask, cur_instr, ii;
1969 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
1970 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
1971 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
1972
1973 command_print(cmd_ctx,
1974 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
1975 tap->abs_chain_position,
1976 tap->dotted_name,
1977 tap->enabled ? 'Y' : 'n',
1978 tap->idcode,
1979 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
1980 tap->ir_length,
1981 expected,
1982 expected_mask,
1983 cur_instr);
1984
1985 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
1986 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
1987 tap->expected_ids[ii]);
1988 }
1989
1990 tap = tap->next_tap;
1991 }
1992
1993 return ERROR_OK;
1994 }
1995
1996 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1997 {
1998 int new_cfg = 0;
1999 int mask = 0;
2000
2001 if (argc < 1)
2002 return ERROR_COMMAND_SYNTAX_ERROR;
2003
2004 /* Original versions cared about the order of these tokens:
2005 * reset_config signals [combination [trst_type [srst_type]]]
2006 * They also clobbered the previous configuration even on error.
2007 *
2008 * Here we don't care about the order, and only change values
2009 * which have been explicitly specified.
2010 */
2011 for (; argc; argc--, args++) {
2012 int tmp = 0;
2013 int m;
2014
2015 /* signals */
2016 m = RESET_HAS_TRST | RESET_HAS_SRST;
2017 if (strcmp(*args, "none") == 0)
2018 tmp = RESET_NONE;
2019 else if (strcmp(*args, "trst_only") == 0)
2020 tmp = RESET_HAS_TRST;
2021 else if (strcmp(*args, "srst_only") == 0)
2022 tmp = RESET_HAS_SRST;
2023 else if (strcmp(*args, "trst_and_srst") == 0)
2024 tmp = RESET_HAS_TRST | RESET_HAS_SRST;
2025 else
2026 m = 0;
2027 if (mask & m) {
2028 LOG_ERROR("extra reset_config %s spec (%s)",
2029 "signal", *args);
2030 return ERROR_INVALID_ARGUMENTS;
2031 }
2032 if (m)
2033 goto next;
2034
2035 /* combination (options for broken wiring) */
2036 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2037 if (strcmp(*args, "separate") == 0)
2038 /* separate reset lines - default */;
2039 else if (strcmp(*args, "srst_pulls_trst") == 0)
2040 tmp |= RESET_SRST_PULLS_TRST;
2041 else if (strcmp(*args, "trst_pulls_srst") == 0)
2042 tmp |= RESET_TRST_PULLS_SRST;
2043 else if (strcmp(*args, "combined") == 0)
2044 tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2045 else
2046 m = 0;
2047 if (mask & m) {
2048 LOG_ERROR("extra reset_config %s spec (%s)",
2049 "combination", *args);
2050 return ERROR_INVALID_ARGUMENTS;
2051 }
2052 if (m)
2053 goto next;
2054
2055 /* trst_type (NOP without HAS_TRST) */
2056 m = RESET_TRST_OPEN_DRAIN;
2057 if (strcmp(*args, "trst_open_drain") == 0)
2058 tmp |= RESET_TRST_OPEN_DRAIN;
2059 else if (strcmp(*args, "trst_push_pull") == 0)
2060 /* push/pull from adapter - default */;
2061 else
2062 m = 0;
2063 if (mask & m) {
2064 LOG_ERROR("extra reset_config %s spec (%s)",
2065 "trst_type", *args);
2066 return ERROR_INVALID_ARGUMENTS;
2067 }
2068 if (m)
2069 goto next;
2070
2071 /* srst_type (NOP without HAS_SRST) */
2072 m |= RESET_SRST_PUSH_PULL;
2073 if (strcmp(*args, "srst_push_pull") == 0)
2074 tmp |= RESET_SRST_PUSH_PULL;
2075 else if (strcmp(*args, "srst_open_drain") == 0)
2076 /* open drain from adapter - default */;
2077 else
2078 m = 0;
2079 if (mask & m) {
2080 LOG_ERROR("extra reset_config %s spec (%s)",
2081 "srst_type", *args);
2082 return ERROR_INVALID_ARGUMENTS;
2083 }
2084 if (m)
2085 goto next;
2086
2087 /* caller provided nonsense; fail */
2088 LOG_ERROR("unknown reset_config flag (%s)", *args);
2089 return ERROR_INVALID_ARGUMENTS;
2090
2091 next:
2092 /* Remember the bits which were specified (mask)
2093 * and their new values (new_cfg).
2094 */
2095 mask |= m;
2096 new_cfg |= tmp;
2097 }
2098
2099 /* clear previous values of those bits, save new values */
2100 jtag_reset_config &= ~mask;
2101 jtag_reset_config |= new_cfg;
2102
2103 return ERROR_OK;
2104 }
2105
2106 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2107 {
2108 if (argc < 1)
2109 {
2110 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
2111 exit(-1);
2112 }
2113 else
2114 {
2115 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
2116 }
2117
2118 return ERROR_OK;
2119 }
2120
2121 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2122 {
2123 if (argc < 1)
2124 {
2125 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
2126 exit(-1);
2127 }
2128 else
2129 {
2130 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
2131 }
2132
2133 return ERROR_OK;
2134 }
2135
2136
2137 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2138 {
2139 int retval=ERROR_OK;
2140
2141 if (argc == 1)
2142 {
2143 LOG_DEBUG("handle jtag speed");
2144
2145 int cur_speed = 0;
2146 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2147
2148 /* this command can be called during CONFIG,
2149 * in which case jtag isn't initialized */
2150 if (jtag)
2151 {
2152 retval=jtag->speed(cur_speed);
2153 }
2154 } else if (argc == 0)
2155 {
2156 } else
2157 {
2158 return ERROR_COMMAND_SYNTAX_ERROR;
2159 }
2160 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2161
2162 return retval;
2163 }
2164
2165 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2166 {
2167 int retval=ERROR_OK;
2168 LOG_DEBUG("handle jtag khz");
2169
2170 int cur_speed = 0;
2171 if(argc == 1)
2172 {
2173 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
2174 if (jtag != NULL)
2175 {
2176 LOG_DEBUG("have interface set up");
2177 int speed_div1;
2178 if ((retval=jtag->khz(jtag_get_speed_khz(), &speed_div1))!=ERROR_OK)
2179 {
2180 jtag_set_speed_khz(0);
2181 return retval;
2182 }
2183
2184 cur_speed = jtag_speed = speed_div1;
2185
2186 retval=jtag->speed(cur_speed);
2187 } else
2188 {
2189 hasKHz = true;
2190 }
2191 } else if (argc==0)
2192 {
2193 } else
2194 {
2195 return ERROR_COMMAND_SYNTAX_ERROR;
2196 }
2197 cur_speed = jtag_get_speed_khz();
2198
2199 if (jtag!=NULL)
2200 {
2201 if ((retval=jtag->speed_div(jtag_speed, &cur_speed))!=ERROR_OK)
2202 return retval;
2203 }
2204
2205 if (cur_speed)
2206 command_print(cmd_ctx, "%d kHz", cur_speed);
2207 else
2208 command_print(cmd_ctx, "RCLK - adaptive");
2209 return retval;
2210
2211 }
2212
2213 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2214 {
2215 if (argc < 1)
2216 return ERROR_COMMAND_SYNTAX_ERROR;
2217
2218 tap_state_t state = tap_state_by_name(args[0]);
2219 if (state < 0)
2220 {
2221 command_print( cmd_ctx, "Invalid state name: %s\n", args[0] );
2222 return ERROR_COMMAND_SYNTAX_ERROR;
2223 }
2224 jtag_set_end_state(state);
2225 jtag_execute_queue();
2226
2227 command_print(cmd_ctx, "current endstate: %s",
2228 tap_state_name(cmd_queue_end_state));
2229
2230 return ERROR_OK;
2231 }
2232
2233 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2234 {
2235 int trst = -1;
2236 int srst = -1;
2237
2238 if (argc < 2)
2239 {
2240 return ERROR_COMMAND_SYNTAX_ERROR;
2241 }
2242
2243 if (args[0][0] == '1')
2244 trst = 1;
2245 else if (args[0][0] == '0')
2246 trst = 0;
2247 else
2248 {
2249 return ERROR_COMMAND_SYNTAX_ERROR;
2250 }
2251
2252 if (args[1][0] == '1')
2253 srst = 1;
2254 else if (args[1][0] == '0')
2255 srst = 0;
2256 else
2257 {
2258 return ERROR_COMMAND_SYNTAX_ERROR;
2259 }
2260
2261 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2262 return ERROR_JTAG_INIT_FAILED;
2263
2264 jtag_add_reset(trst, srst);
2265 jtag_execute_queue();
2266
2267 return ERROR_OK;
2268 }
2269
2270 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2271 {
2272 if (argc < 1)
2273 {
2274 return ERROR_COMMAND_SYNTAX_ERROR;
2275 }
2276
2277 jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
2278 jtag_execute_queue();
2279
2280 return ERROR_OK;
2281
2282 }
2283
2284 /*
2285 * For "irscan" or "drscan" commands, the "end" (really, "next") state
2286 * should be stable ... and *NOT* a shift state, otherwise free-running
2287 * jtag clocks could change the values latched by the update state.
2288 */
2289 static bool scan_is_safe(tap_state_t state)
2290 {
2291 switch (state)
2292 {
2293 case TAP_RESET:
2294 case TAP_IDLE:
2295 case TAP_DRPAUSE:
2296 case TAP_IRPAUSE:
2297 return true;
2298 default:
2299 return false;
2300 }
2301 }
2302
2303
2304 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2305 {
2306 int i;
2307 scan_field_t *fields;
2308 jtag_tap_t *tap;
2309 tap_state_t endstate;
2310
2311 if ((argc < 2) || (argc % 2))
2312 {
2313 return ERROR_COMMAND_SYNTAX_ERROR;
2314 }
2315
2316 /* optional "-endstate" "statename" at the end of the arguments,
2317 * so that e.g. IRPAUSE can let us load the data register before
2318 * entering RUN/IDLE to execute the instruction we load here.
2319 */
2320 endstate = TAP_IDLE;
2321
2322 if( argc >= 4 ){
2323 /* have at least one pair of numbers. */
2324 /* is last pair the magic text? */
2325 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
2326 const char *cpA;
2327 const char *cpS;
2328 cpA = args[ argc-1 ];
2329 for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
2330 cpS = tap_state_name( endstate );
2331 if( 0 == strcmp( cpA, cpS ) ){
2332 break;
2333 }
2334 }
2335 if( endstate >= TAP_NUM_STATES ){
2336 return ERROR_COMMAND_SYNTAX_ERROR;
2337 } else {
2338 if (!scan_is_safe(endstate))
2339 LOG_WARNING("irscan with unsafe "
2340 "endstate \"%s\"", cpA);
2341 /* found - remove the last 2 args */
2342 argc -= 2;
2343 }
2344 }
2345 }
2346
2347 int num_fields = argc / 2;
2348
2349 fields = malloc(sizeof(scan_field_t) * num_fields);
2350
2351 for (i = 0; i < num_fields; i++)
2352 {
2353 tap = jtag_tap_by_string( args[i*2] );
2354 if (tap==NULL)
2355 {
2356 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2357 return ERROR_FAIL;
2358 }
2359 int field_size = tap->ir_length;
2360 fields[i].tap = tap;
2361 fields[i].num_bits = field_size;
2362 fields[i].out_value = malloc(CEIL(field_size, 8));
2363 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2364 fields[i].in_value = NULL;
2365 }
2366
2367 /* did we have an endstate? */
2368 jtag_add_ir_scan(num_fields, fields, endstate);
2369
2370 int retval=jtag_execute_queue();
2371
2372 for (i = 0; i < num_fields; i++)
2373 free(fields[i].out_value);
2374
2375 free (fields);
2376
2377 return retval;
2378 }
2379
2380 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2381 {
2382 int retval;
2383 scan_field_t *fields;
2384 int num_fields;
2385 int field_count = 0;
2386 int i, e;
2387 jtag_tap_t *tap;
2388 tap_state_t endstate;
2389
2390 /* args[1] = device
2391 * args[2] = num_bits
2392 * args[3] = hex string
2393 * ... repeat num bits and hex string ...
2394 *
2395 * .. optionally:
2396 * args[N-2] = "-endstate"
2397 * args[N-1] = statename
2398 */
2399 if ((argc < 4) || ((argc % 2)!=0))
2400 {
2401 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2402 return JIM_ERR;
2403 }
2404
2405 endstate = TAP_IDLE;
2406
2407 /* validate arguments as numbers */
2408 e = JIM_OK;
2409 for (i = 2; i < argc; i+=2)
2410 {
2411 long bits;
2412 const char *cp;
2413
2414 e = Jim_GetLong(interp, args[i], &bits);
2415 /* If valid - try next arg */
2416 if( e == JIM_OK ){
2417 continue;
2418 }
2419
2420 /* Not valid.. are we at the end? */
2421 if ( ((i+2) != argc) ){
2422 /* nope, then error */
2423 return e;
2424 }
2425
2426 /* it could be: "-endstate FOO"
2427 * e.g. DRPAUSE so we can issue more instructions
2428 * before entering RUN/IDLE and executing them.
2429 */
2430
2431 /* get arg as a string. */
2432 cp = Jim_GetString( args[i], NULL );
2433 /* is it the magic? */
2434 if( 0 == strcmp( "-endstate", cp ) ){
2435 /* is the statename valid? */
2436 cp = Jim_GetString( args[i+1], NULL );
2437
2438 /* see if it is a valid state name */
2439 endstate = tap_state_by_name(cp);
2440 if( endstate < 0 ){
2441 /* update the error message */
2442 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
2443 } else {
2444 if (!scan_is_safe(endstate))
2445 LOG_WARNING("drscan with unsafe "
2446 "endstate \"%s\"", cp);
2447
2448 /* valid - so clear the error */
2449 e = JIM_OK;
2450 /* and remove the last 2 args */
2451 argc -= 2;
2452 }
2453 }
2454
2455 /* Still an error? */
2456 if( e != JIM_OK ){
2457 return e; /* too bad */
2458 }
2459 } /* validate args */
2460
2461 tap = jtag_tap_by_jim_obj( interp, args[1] );
2462 if( tap == NULL ){
2463 return JIM_ERR;
2464 }
2465
2466 num_fields=(argc-2)/2;
2467 fields = malloc(sizeof(scan_field_t) * num_fields);
2468 for (i = 2; i < argc; i+=2)
2469 {
2470 long bits;
2471 int len;
2472 const char *str;
2473
2474 Jim_GetLong(interp, args[i], &bits);
2475 str = Jim_GetString(args[i+1], &len);
2476
2477 fields[field_count].tap = tap;
2478 fields[field_count].num_bits = bits;
2479 fields[field_count].out_value = malloc(CEIL(bits, 8));
2480 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2481 fields[field_count].in_value = fields[field_count].out_value;
2482 field_count++;
2483 }
2484
2485 jtag_add_dr_scan(num_fields, fields, endstate);
2486
2487 retval = jtag_execute_queue();
2488 if (retval != ERROR_OK)
2489 {
2490 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2491 return JIM_ERR;
2492 }
2493
2494 field_count=0;
2495 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2496 for (i = 2; i < argc; i+=2)
2497 {
2498 long bits;
2499 char *str;
2500
2501 Jim_GetLong(interp, args[i], &bits);
2502 str = buf_to_str(fields[field_count].in_value, bits, 16);
2503 free(fields[field_count].out_value);
2504
2505 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2506 free(str);
2507 field_count++;
2508 }
2509
2510 Jim_SetResult(interp, list);
2511
2512 free(fields);
2513
2514 return JIM_OK;
2515 }
2516
2517
2518 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2519 {
2520 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
2521
2522 return JIM_OK;
2523 }
2524
2525
2526 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2527 {
2528 if (argc == 1)
2529 {
2530 if (strcmp(args[0], "enable") == 0)
2531 {
2532 jtag_verify_capture_ir = 1;
2533 }
2534 else if (strcmp(args[0], "disable") == 0)
2535 {
2536 jtag_verify_capture_ir = 0;
2537 } else
2538 {
2539 return ERROR_COMMAND_SYNTAX_ERROR;
2540 }
2541 } else if (argc != 0)
2542 {
2543 return ERROR_COMMAND_SYNTAX_ERROR;
2544 }
2545
2546 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2547
2548 return ERROR_OK;
2549 }
2550
2551 void jtag_set_verify(bool enable)
2552 {
2553 jtag_verify = enable;
2554 }
2555
2556 bool jtag_will_verify()
2557 {
2558 return jtag_verify;
2559 }
2560
2561 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2562 {
2563 if (argc > 1)
2564 return ERROR_COMMAND_SYNTAX_ERROR;
2565
2566 if (argc == 1)
2567 {
2568 if (strcmp(args[0], "enable") == 0)
2569 jtag_set_verify(true);
2570 else if (strcmp(args[0], "disable") == 0)
2571 jtag_set_verify(false);
2572 else
2573 return ERROR_COMMAND_SYNTAX_ERROR;
2574 }
2575
2576 const char *status = jtag_will_verify() ? "enabled": "disabled";
2577 command_print(cmd_ctx, "verify jtag capture is %s", status);
2578
2579 return ERROR_OK;
2580 }
2581
2582
2583 int jtag_power_dropout(int *dropout)
2584 {
2585 return jtag->power_dropout(dropout);
2586 }
2587
2588 int jtag_srst_asserted(int *srst_asserted)
2589 {
2590 return jtag->srst_asserted(srst_asserted);
2591 }
2592
2593 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2594 {
2595 jtag_tap_event_action_t * jteap;
2596 int done;
2597
2598 jteap = tap->event_action;
2599
2600 done = 0;
2601 while (jteap) {
2602 if (jteap->event == e) {
2603 done = 1;
2604 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2605 tap->dotted_name,
2606 e,
2607 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2608 Jim_GetString(jteap->body, NULL) );
2609 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2610 Jim_PrintErrorMessage(interp);
2611 }
2612 }
2613
2614 jteap = jteap->next;
2615 }
2616
2617 if (!done) {
2618 LOG_DEBUG( "event %d %s - no action",
2619 e,
2620 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2621 }
2622 }
2623
2624 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2625 {
2626 if (argc > 1)
2627 return ERROR_COMMAND_SYNTAX_ERROR;
2628
2629 if (argc == 1)
2630 {
2631 bool use_new_table;
2632 if (strcmp(args[0], "short") == 0)
2633 use_new_table = true;
2634 else if (strcmp(args[0], "long") == 0)
2635 use_new_table = false;
2636 else
2637 return ERROR_COMMAND_SYNTAX_ERROR;
2638
2639 tap_use_new_tms_table(use_new_table);
2640 }
2641
2642 command_print(cmd_ctx, "tms sequence is %s",
2643 tap_uses_new_tms_table() ? "short": "long");
2644
2645 return ERROR_OK;
2646 }
2647
2648 /**
2649 * Function jtag_add_statemove
2650 * moves from the current state to the goal \a state. This needs
2651 * to be handled according to the xsvf spec, see the XSTATE command
2652 * description.
2653 */
2654 int jtag_add_statemove(tap_state_t goal_state)
2655 {
2656 int retval = ERROR_OK;
2657
2658 tap_state_t moves[8];
2659 tap_state_t cur_state = cmd_queue_cur_state;
2660 int i;
2661 int tms_bits;
2662 int tms_count;
2663
2664 LOG_DEBUG( "cur_state=%s goal_state=%s",
2665 tap_state_name(cur_state),
2666 tap_state_name(goal_state) );
2667
2668
2669 /* From the XSVF spec, pertaining to XSTATE:
2670
2671 For special states known as stable states (Test-Logic-Reset,
2672 Run-Test/Idle, Pause-DR, Pause- IR), an XSVF interpreter follows
2673 predefined TAP state paths when the starting state is a stable state and
2674 when the XSTATE specifies a new stable state (see the STATE command in
2675 the [Ref 5] for the TAP state paths between stable states). For
2676 non-stable states, XSTATE should specify a state that is only one TAP
2677 state transition distance from the current TAP state to avoid undefined
2678 TAP state paths. A sequence of multiple XSTATE commands can be issued to
2679 transition the TAP through a specific state path.
2680 */
2681
2682 if (goal_state==cur_state )
2683 ; /* nothing to do */
2684
2685 else if( goal_state==TAP_RESET )
2686 {
2687 jtag_add_tlr();
2688 }
2689
2690 else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) )
2691 {
2692 /* note: unless tms_bits holds a path that agrees with [Ref 5] in above
2693 spec, then this code is not fully conformant to the xsvf spec. This
2694 puts a burden on tap_get_tms_path() function from the xsvf spec.
2695 If in doubt, you should confirm that that burden is being met.
2696 */
2697
2698 tms_bits = tap_get_tms_path(cur_state, goal_state);
2699 tms_count = tap_get_tms_path_len(cur_state, goal_state);
2700
2701 assert( (unsigned) tms_count < DIM(moves) );
2702
2703 for (i=0; i<tms_count; i++, tms_bits>>=1)
2704 {
2705 bool bit = tms_bits & 1;
2706
2707 cur_state = tap_state_transition(cur_state, bit);
2708 moves[i] = cur_state;
2709 }
2710
2711 jtag_add_pathmove(tms_count, moves);
2712 }
2713
2714 /* else state must be immediately reachable in one clock cycle, and does not
2715 need to be a stable state.
2716 */
2717 else if( tap_state_transition(cur_state, true) == goal_state
2718 || tap_state_transition(cur_state, false) == goal_state )
2719 {
2720 /* move a single state */
2721 moves[0] = goal_state;
2722 jtag_add_pathmove( 1, moves );
2723 }
2724
2725 else
2726 {
2727 retval = ERROR_FAIL;
2728 }
2729
2730 return retval;
2731 }
2732
2733 void jtag_set_nsrst_delay(unsigned delay)
2734 {
2735 jtag_nsrst_delay = delay;
2736 }
2737 void jtag_set_ntrst_delay(unsigned delay)
2738 {
2739 jtag_ntrst_delay = delay;
2740 }
2741
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Open On-Chip Debugger

Linking to existing account procedure

If you already have an account and want to add another login method you MUST first sign in with your existing account and then change URL to read https://review.openocd.org/login/?link to get to this page again but this time it'll work for linking. Thank you.

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)
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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)