Code Review / openocd.git / blob
? search:


1456a5b541b2428ab02223a6d75d50298d8c8969
[openocd.git] / src / jtag / jtag.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2009 SoftPLC Corporation *
9 * http://softplc.com *
10 * dick@softplc.com *
11 * *
12 * This program is free software; you can redistribute it and/or modify *
13 * it under the terms of the GNU General Public License as published by *
14 * the Free Software Foundation; either version 2 of the License, or *
15 * (at your option) any later version. *
16 * *
17 * This program is distributed in the hope that it will be useful, *
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
20 * GNU General Public License for more details. *
21 * *
22 * You should have received a copy of the GNU General Public License *
23 * along with this program; if not, write to the *
24 * Free Software Foundation, Inc., *
25 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
26 ***************************************************************************/
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include "jtag.h"
32 #include "minidriver.h"
33 #include "interface.h"
34
35 #ifdef HAVE_STRINGS_H
36 #include <strings.h>
37 #endif
38
39
40 /// The number of JTAG queue flushes (for profiling and debugging purposes).
41 static int jtag_flush_queue_count;
42
43 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
44 int in_num_fields, scan_field_t *in_fields, tap_state_t state);
45
46 /* note that this is not marked as static as it must be available from outside jtag.c for those
47 that implement the jtag_xxx() minidriver layer
48 */
49 int jtag_error=ERROR_OK;
50
51 char* jtag_event_strings[] =
52 {
53 "JTAG controller reset (RESET or TRST)"
54 };
55
56 const Jim_Nvp nvp_jtag_tap_event[] = {
57 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
58 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
59
60 { .name = NULL, .value = -1 }
61 };
62
63 int jtag_trst = 0;
64 int jtag_srst = 0;
65
66 /**
67 * List all TAPs that have been created.
68 */
69 static jtag_tap_t *__jtag_all_taps = NULL;
70 /**
71 * The number of TAPs in the __jtag_all_taps list, used to track the
72 * assigned chain position to new TAPs
73 */
74 static int jtag_num_taps = 0;
75
76 enum reset_types jtag_reset_config = RESET_NONE;
77 tap_state_t cmd_queue_end_state = TAP_RESET;
78 tap_state_t cmd_queue_cur_state = TAP_RESET;
79
80 int jtag_verify_capture_ir = 1;
81 int jtag_verify = 1;
82
83 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
84 static int jtag_nsrst_delay = 0; /* default to no nSRST delay */
85 static int jtag_ntrst_delay = 0; /* default to no nTRST delay */
86
87 /* callbacks to inform high-level handlers about JTAG state changes */
88 jtag_event_callback_t *jtag_event_callbacks;
89
90 /* speed in kHz*/
91 static int speed_khz = 0;
92 /* flag if the kHz speed was defined */
93 static bool hasKHz = false;
94
95 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
96 */
97
98 #if BUILD_ECOSBOARD == 1
99 extern jtag_interface_t zy1000_interface;
100 #endif
101
102 #if BUILD_PARPORT == 1
103 extern jtag_interface_t parport_interface;
104 #endif
105
106 #if BUILD_DUMMY == 1
107 extern jtag_interface_t dummy_interface;
108 #endif
109
110 #if BUILD_FT2232_FTD2XX == 1
111 extern jtag_interface_t ft2232_interface;
112 #endif
113
114 #if BUILD_FT2232_LIBFTDI == 1
115 extern jtag_interface_t ft2232_interface;
116 #endif
117
118 #if BUILD_AMTJTAGACCEL == 1
119 extern jtag_interface_t amt_jtagaccel_interface;
120 #endif
121
122 #if BUILD_EP93XX == 1
123 extern jtag_interface_t ep93xx_interface;
124 #endif
125
126 #if BUILD_AT91RM9200 == 1
127 extern jtag_interface_t at91rm9200_interface;
128 #endif
129
130 #if BUILD_GW16012 == 1
131 extern jtag_interface_t gw16012_interface;
132 #endif
133
134 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
135 extern jtag_interface_t presto_interface;
136 #endif
137
138 #if BUILD_USBPROG == 1
139 extern jtag_interface_t usbprog_interface;
140 #endif
141
142 #if BUILD_JLINK == 1
143 extern jtag_interface_t jlink_interface;
144 #endif
145
146 #if BUILD_VSLLINK == 1
147 extern jtag_interface_t vsllink_interface;
148 #endif
149
150 #if BUILD_RLINK == 1
151 extern jtag_interface_t rlink_interface;
152 #endif
153
154 #if BUILD_ARMJTAGEW == 1
155 extern jtag_interface_t armjtagew_interface;
156 #endif
157
158 jtag_interface_t *jtag_interfaces[] = {
159 #if BUILD_ECOSBOARD == 1
160 &zy1000_interface,
161 #endif
162 #if BUILD_PARPORT == 1
163 &parport_interface,
164 #endif
165 #if BUILD_DUMMY == 1
166 &dummy_interface,
167 #endif
168 #if BUILD_FT2232_FTD2XX == 1
169 &ft2232_interface,
170 #endif
171 #if BUILD_FT2232_LIBFTDI == 1
172 &ft2232_interface,
173 #endif
174 #if BUILD_AMTJTAGACCEL == 1
175 &amt_jtagaccel_interface,
176 #endif
177 #if BUILD_EP93XX == 1
178 &ep93xx_interface,
179 #endif
180 #if BUILD_AT91RM9200 == 1
181 &at91rm9200_interface,
182 #endif
183 #if BUILD_GW16012 == 1
184 &gw16012_interface,
185 #endif
186 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
187 &presto_interface,
188 #endif
189 #if BUILD_USBPROG == 1
190 &usbprog_interface,
191 #endif
192 #if BUILD_JLINK == 1
193 &jlink_interface,
194 #endif
195 #if BUILD_VSLLINK == 1
196 &vsllink_interface,
197 #endif
198 #if BUILD_RLINK == 1
199 &rlink_interface,
200 #endif
201 #if BUILD_ARMJTAGEW == 1
202 &armjtagew_interface,
203 #endif
204 NULL,
205 };
206
207 struct jtag_interface_s *jtag = NULL;
208
209 /* configuration */
210 static jtag_interface_t *jtag_interface = NULL;
211 int jtag_speed = 0;
212
213 /* jtag commands */
214 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
215 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
216 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
217 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
218 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
219 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
220 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
221
222 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
223
224 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
225 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
226 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
227 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
228 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
229 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args);
230
231 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
232 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
233 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
234
235 jtag_tap_t *jtag_all_taps(void)
236 {
237 return __jtag_all_taps;
238 };
239
240 int jtag_tap_count(void)
241 {
242 return jtag_num_taps;
243 }
244
245 int jtag_tap_count_enabled(void)
246 {
247 jtag_tap_t *t;
248 int n;
249
250 n = 0;
251 t = jtag_all_taps();
252 while(t){
253 if( t->enabled ){
254 n++;
255 }
256 t = t->next_tap;
257 }
258 return n;
259 }
260
261 /// Append a new TAP to the chain of all taps.
262 static void jtag_tap_add(struct jtag_tap_s *t)
263 {
264 t->abs_chain_position = jtag_num_taps++;
265
266 jtag_tap_t **tap = &__jtag_all_taps;
267 while(*tap != NULL)
268 tap = &(*tap)->next_tap;
269 *tap = t;
270 }
271
272 jtag_tap_t *jtag_tap_by_string( const char *s )
273 {
274 jtag_tap_t *t;
275 char *cp;
276
277 t = jtag_all_taps();
278 /* try name first */
279 while(t){
280 if( 0 == strcmp( t->dotted_name, s ) ){
281 break;
282 } else {
283 t = t->next_tap;
284 }
285 }
286 /* backup plan is by number */
287 if( t == NULL ){
288 /* ok - is "s" a number? */
289 int n;
290 n = strtol( s, &cp, 0 );
291 if( (s != cp) && (*cp == 0) ){
292 /* Then it is... */
293 t = jtag_tap_by_abs_position(n);
294 }
295 }
296 return t;
297 }
298
299 jtag_tap_t * jtag_tap_by_jim_obj( Jim_Interp *interp, Jim_Obj *o )
300 {
301 jtag_tap_t *t;
302 const char *cp;
303
304 cp = Jim_GetString( o, NULL );
305 if(cp == NULL){
306 cp = "(unknown)";
307 t = NULL;
308 } else {
309 t = jtag_tap_by_string( cp );
310 }
311 if( t == NULL ){
312 Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
313 }
314 return t;
315 }
316
317 /* returns a pointer to the n-th device in the scan chain */
318 jtag_tap_t * jtag_tap_by_abs_position( int n )
319 {
320 int orig_n;
321 jtag_tap_t *t;
322
323 orig_n = n;
324 t = jtag_all_taps();
325
326 while( t && (n > 0)) {
327 n--;
328 t = t->next_tap;
329 }
330 return t;
331 }
332
333 const char *jtag_tap_name(const jtag_tap_t *tap)
334 {
335 return (tap == NULL) ? "(unknown)" : tap->dotted_name;
336 }
337
338
339 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
340 {
341 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
342
343 if (callback == NULL)
344 {
345 return ERROR_INVALID_ARGUMENTS;
346 }
347
348 if (*callbacks_p)
349 {
350 while ((*callbacks_p)->next)
351 callbacks_p = &((*callbacks_p)->next);
352 callbacks_p = &((*callbacks_p)->next);
353 }
354
355 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
356 (*callbacks_p)->callback = callback;
357 (*callbacks_p)->priv = priv;
358 (*callbacks_p)->next = NULL;
359
360 return ERROR_OK;
361 }
362
363 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
364 {
365 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
366
367 if (callback == NULL)
368 {
369 return ERROR_INVALID_ARGUMENTS;
370 }
371
372 while (*callbacks_p)
373 {
374 jtag_event_callback_t **next = &((*callbacks_p)->next);
375 if ((*callbacks_p)->callback == callback)
376 {
377 free(*callbacks_p);
378 *callbacks_p = *next;
379 }
380 callbacks_p = next;
381 }
382
383 return ERROR_OK;
384 }
385
386 int jtag_call_event_callbacks(enum jtag_event event)
387 {
388 jtag_event_callback_t *callback = jtag_event_callbacks;
389
390 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
391
392 while (callback)
393 {
394 callback->callback(event, callback->priv);
395 callback = callback->next;
396 }
397
398 return ERROR_OK;
399 }
400
401 static void jtag_checks(void)
402 {
403 assert(jtag_trst == 0);
404 }
405
406 static void jtag_prelude(tap_state_t state)
407 {
408 jtag_checks();
409
410 assert(state!=TAP_INVALID);
411
412 cmd_queue_cur_state = state;
413 }
414
415 void jtag_alloc_in_value32(scan_field_t *field)
416 {
417 interface_jtag_alloc_in_value32(field);
418 }
419
420 void jtag_add_ir_scan_noverify(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
421 {
422 int retval;
423 jtag_prelude(state);
424
425 retval=interface_jtag_add_ir_scan(in_num_fields, in_fields, state);
426 if (retval!=ERROR_OK)
427 jtag_error=retval;
428
429 }
430
431
432 /**
433 * Generate an IR SCAN with a list of scan fields with one entry for each enabled TAP.
434 *
435 * If the input field list contains an instruction value for a TAP then that is used
436 * otherwise the TAP is set to bypass.
437 *
438 * TAPs for which no fields are passed are marked as bypassed for subsequent DR SCANs.
439 *
440 */
441 void jtag_add_ir_scan(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
442 {
443 if (jtag_verify&&jtag_verify_capture_ir)
444 {
445 /* 8 x 32 bit id's is enough for all invocations */
446
447 for (int j = 0; j < in_num_fields; j++)
448 {
449 /* if we are to run a verification of the ir scan, we need to get the input back.
450 * We may have to allocate space if the caller didn't ask for the input back.
451 */
452 in_fields[j].check_value=in_fields[j].tap->expected;
453 in_fields[j].check_mask=in_fields[j].tap->expected_mask;
454 }
455 jtag_add_scan_check(jtag_add_ir_scan_noverify, in_num_fields, in_fields, state);
456 } else
457 {
458 jtag_add_ir_scan_noverify(in_num_fields, in_fields, state);
459 }
460 }
461
462 /**
463 * Duplicate the scan fields passed into the function into an IR SCAN command
464 *
465 * This function assumes that the caller handles extra fields for bypassed TAPs
466 *
467 */
468 void jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
469 {
470 int retval;
471
472 jtag_prelude(state);
473
474 retval=interface_jtag_add_plain_ir_scan(in_num_fields, in_fields, state);
475 if (retval!=ERROR_OK)
476 jtag_error=retval;
477 }
478
479 void jtag_add_callback(jtag_callback1_t f, u8 *in)
480 {
481 interface_jtag_add_callback(f, in);
482 }
483
484 void jtag_add_callback4(jtag_callback_t f, u8 *in,
485 jtag_callback_data_t data1, jtag_callback_data_t data2,
486 jtag_callback_data_t data3)
487 {
488 interface_jtag_add_callback4(f, in, data1, data2, data3);
489 }
490
491 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits);
492
493 static int jtag_check_value_mask_callback(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
494 {
495 return jtag_check_value_inner(in, (u8 *)data1, (u8 *)data2, (int)data3);
496 }
497
498 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
499 int in_num_fields, scan_field_t *in_fields, tap_state_t state)
500 {
501 for (int i = 0; i < in_num_fields; i++)
502 {
503 struct scan_field_s *field = &in_fields[i];
504 field->allocated = 0;
505 field->modified = 0;
506 if (field->check_value || field->in_value)
507 continue;
508 interface_jtag_add_scan_check_alloc(field);
509 field->modified = 1;
510 }
511
512 jtag_add_scan(in_num_fields, in_fields, state);
513
514 for (int i = 0; i < in_num_fields; i++)
515 {
516 if ((in_fields[i].check_value != NULL) && (in_fields[i].in_value != NULL))
517 {
518 /* this is synchronous for a minidriver */
519 jtag_add_callback4(jtag_check_value_mask_callback, in_fields[i].in_value,
520 (jtag_callback_data_t)in_fields[i].check_value,
521 (jtag_callback_data_t)in_fields[i].check_mask,
522 (jtag_callback_data_t)in_fields[i].num_bits);
523 }
524 if (in_fields[i].allocated)
525 {
526 free(in_fields[i].in_value);
527 }
528 if (in_fields[i].modified)
529 {
530 in_fields[i].in_value = NULL;
531 }
532 }
533 }
534
535 void jtag_add_dr_scan_check(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
536 {
537 if (jtag_verify)
538 {
539 jtag_add_scan_check(jtag_add_dr_scan, in_num_fields, in_fields, state);
540 } else
541 {
542 jtag_add_dr_scan(in_num_fields, in_fields, state);
543 }
544 }
545
546
547 /**
548 * Generate a DR SCAN using the fields passed to the function
549 *
550 * For not bypassed TAPs the function checks in_fields and uses fields specified there.
551 * For bypassed TAPs the function generates a dummy 1bit field.
552 *
553 * The bypass status of TAPs is set by jtag_add_ir_scan().
554 *
555 */
556 void jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
557 {
558 int retval;
559
560 jtag_prelude(state);
561
562 retval=interface_jtag_add_dr_scan(in_num_fields, in_fields, state);
563 if (retval!=ERROR_OK)
564 jtag_error=retval;
565 }
566
567
568
569 /**
570 * Duplicate the scan fields passed into the function into a DR SCAN command
571 *
572 * This function assumes that the caller handles extra fields for bypassed TAPs
573 *
574 */
575 void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
576 {
577 int retval;
578
579 jtag_prelude(state);
580
581 retval=interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, state);
582 if (retval!=ERROR_OK)
583 jtag_error=retval;
584 }
585
586 void jtag_add_dr_out(jtag_tap_t* tap,
587 int num_fields, const int* num_bits, const u32* value,
588 tap_state_t end_state)
589 {
590 assert(end_state != TAP_INVALID);
591
592 cmd_queue_cur_state = end_state;
593
594 interface_jtag_add_dr_out(tap,
595 num_fields, num_bits, value,
596 end_state);
597 }
598
599 void jtag_add_tlr(void)
600 {
601 jtag_prelude(TAP_RESET);
602
603 int retval;
604 retval=interface_jtag_add_tlr();
605 if (retval!=ERROR_OK)
606 jtag_error=retval;
607
608 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
609 }
610
611 void jtag_add_pathmove(int num_states, const tap_state_t *path)
612 {
613 tap_state_t cur_state = cmd_queue_cur_state;
614 int i;
615 int retval;
616
617 /* the last state has to be a stable state */
618 if (!tap_is_state_stable(path[num_states - 1]))
619 {
620 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
621 exit(-1);
622 }
623
624 for (i=0; i<num_states; i++)
625 {
626 if (path[i] == TAP_RESET)
627 {
628 LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
629 exit(-1);
630 }
631
632 if ( tap_state_transition(cur_state, true) != path[i]
633 && tap_state_transition(cur_state, false) != path[i])
634 {
635 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[i]));
636 exit(-1);
637 }
638 cur_state = path[i];
639 }
640
641 jtag_checks();
642
643 retval = interface_jtag_add_pathmove(num_states, path);
644 cmd_queue_cur_state = path[num_states - 1];
645 if (retval!=ERROR_OK)
646 jtag_error=retval;
647 }
648
649 void jtag_add_runtest(int num_cycles, tap_state_t state)
650 {
651 int retval;
652
653 jtag_prelude(state);
654
655 /* executed by sw or hw fifo */
656 retval=interface_jtag_add_runtest(num_cycles, state);
657 if (retval!=ERROR_OK)
658 jtag_error=retval;
659 }
660
661
662 void jtag_add_clocks( int num_cycles )
663 {
664 int retval;
665
666 if( !tap_is_state_stable(cmd_queue_cur_state) )
667 {
668 LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
669 tap_state_name(cmd_queue_cur_state) );
670 jtag_error = ERROR_JTAG_NOT_STABLE_STATE;
671 return;
672 }
673
674 if( num_cycles > 0 )
675 {
676 jtag_checks();
677
678 retval = interface_jtag_add_clocks(num_cycles);
679 if (retval != ERROR_OK)
680 jtag_error=retval;
681 }
682 }
683
684 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
685 {
686 int trst_with_tlr = 0;
687 int retval;
688
689 /* FIX!!! there are *many* different cases here. A better
690 * approach is needed for legal combinations of transitions...
691 */
692 if ((jtag_reset_config & RESET_HAS_SRST)&&
693 (jtag_reset_config & RESET_HAS_TRST)&&
694 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
695 {
696 if (((req_tlr_or_trst&&!jtag_trst)||
697 (!req_tlr_or_trst&&jtag_trst))&&
698 ((req_srst&&!jtag_srst)||
699 (!req_srst&&jtag_srst)))
700 {
701 /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
702 //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
703 }
704 }
705
706 /* Make sure that jtag_reset_config allows the requested reset */
707 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
708 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
709 {
710 LOG_ERROR("BUG: requested reset would assert trst");
711 jtag_error=ERROR_FAIL;
712 return;
713 }
714
715 /* if TRST pulls SRST, we reset with TAP T-L-R */
716 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
717 {
718 trst_with_tlr = 1;
719 }
720
721 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
722 {
723 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
724 jtag_error=ERROR_FAIL;
725 return;
726 }
727
728 if (req_tlr_or_trst)
729 {
730 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
731 {
732 jtag_trst = 1;
733 } else
734 {
735 trst_with_tlr = 1;
736 }
737 } else
738 {
739 jtag_trst = 0;
740 }
741
742 jtag_srst = req_srst;
743
744 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
745 if (retval!=ERROR_OK)
746 {
747 jtag_error=retval;
748 return;
749 }
750 jtag_execute_queue();
751
752 if (jtag_srst)
753 {
754 LOG_DEBUG("SRST line asserted");
755 }
756 else
757 {
758 LOG_DEBUG("SRST line released");
759 if (jtag_nsrst_delay)
760 jtag_add_sleep(jtag_nsrst_delay * 1000);
761 }
762
763 if (trst_with_tlr)
764 {
765 LOG_DEBUG("JTAG reset with RESET instead of TRST");
766 jtag_set_end_state(TAP_RESET);
767 jtag_add_tlr();
768 return;
769 }
770
771 if (jtag_trst)
772 {
773 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
774 * and inform possible listeners about this
775 */
776 LOG_DEBUG("TRST line asserted");
777 tap_set_state(TAP_RESET);
778 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
779 }
780 else
781 {
782 if (jtag_ntrst_delay)
783 jtag_add_sleep(jtag_ntrst_delay * 1000);
784 }
785 }
786
787 tap_state_t jtag_set_end_state(tap_state_t state)
788 {
789 if ((state == TAP_DRSHIFT)||(state == TAP_IRSHIFT))
790 {
791 LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field");
792 }
793
794 if (state!=TAP_INVALID)
795 cmd_queue_end_state = state;
796 return cmd_queue_end_state;
797 }
798
799 tap_state_t jtag_get_end_state(void)
800 {
801 return cmd_queue_end_state;
802 }
803
804 void jtag_add_sleep(u32 us)
805 {
806 keep_alive(); /* we might be running on a very slow JTAG clk */
807 int retval=interface_jtag_add_sleep(us);
808 if (retval!=ERROR_OK)
809 jtag_error=retval;
810 return;
811 }
812
813 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits)
814 {
815 int retval = ERROR_OK;
816
817 int compare_failed = 0;
818
819 if (in_check_mask)
820 compare_failed = buf_cmp_mask(captured, in_check_value, in_check_mask, num_bits);
821 else
822 compare_failed = buf_cmp(captured, in_check_value, num_bits);
823
824 if (compare_failed){
825 /* An error handler could have caught the failing check
826 * only report a problem when there wasn't a handler, or if the handler
827 * acknowledged the error
828 */
829 /*
830 LOG_WARNING("TAP %s:",
831 jtag_tap_name(field->tap));
832 */
833 if (compare_failed)
834 {
835 char *captured_char = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
836 char *in_check_value_char = buf_to_str(in_check_value, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
837
838 if (in_check_mask)
839 {
840 char *in_check_mask_char;
841 in_check_mask_char = buf_to_str(in_check_mask, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
842 LOG_WARNING("value captured during scan didn't pass the requested check:");
843 LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
844 captured_char, in_check_value_char, in_check_mask_char);
845 free(in_check_mask_char);
846 }
847 else
848 {
849 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
850 }
851
852 free(captured_char);
853 free(in_check_value_char);
854
855 retval = ERROR_JTAG_QUEUE_FAILED;
856 }
857
858 }
859 return retval;
860 }
861
862 void jtag_check_value_mask(scan_field_t *field, u8 *value, u8 *mask)
863 {
864 assert(field->in_value != NULL);
865
866 if (value==NULL)
867 {
868 /* no checking to do */
869 return;
870 }
871
872 jtag_execute_queue_noclear();
873
874 int retval=jtag_check_value_inner(field->in_value, value, mask, field->num_bits);
875 jtag_set_error(retval);
876 }
877
878
879
880 int default_interface_jtag_execute_queue(void)
881 {
882 if (NULL == jtag)
883 {
884 LOG_ERROR("No JTAG interface configured yet. "
885 "Issue 'init' command in startup scripts "
886 "before communicating with targets.");
887 return ERROR_FAIL;
888 }
889
890 return jtag->execute_queue();
891 }
892
893 void jtag_execute_queue_noclear(void)
894 {
895 /* each flush can take as much as 1-2ms on high bandwidth low latency interfaces.
896 * E.g. a JTAG over TCP/IP or USB....
897 */
898 jtag_flush_queue_count++;
899
900 int retval=interface_jtag_execute_queue();
901 /* we keep the first error */
902 if ((jtag_error==ERROR_OK)&&(retval!=ERROR_OK))
903 {
904 jtag_error=retval;
905 }
906 }
907
908 int jtag_get_flush_queue_count(void)
909 {
910 return jtag_flush_queue_count;
911 }
912
913 int jtag_execute_queue(void)
914 {
915 int retval;
916 jtag_execute_queue_noclear();
917 retval=jtag_error;
918 jtag_error=ERROR_OK;
919 return retval;
920 }
921
922 static int jtag_reset_callback(enum jtag_event event, void *priv)
923 {
924 jtag_tap_t *tap = priv;
925
926 LOG_DEBUG("-");
927
928 if (event == JTAG_TRST_ASSERTED)
929 {
930 buf_set_ones(tap->cur_instr, tap->ir_length);
931 tap->bypass = 1;
932 }
933
934 return ERROR_OK;
935 }
936
937 void jtag_sleep(u32 us)
938 {
939 alive_sleep(us/1000);
940 }
941
942 /// maximum number of JTAG devices expected in the chain
943 #define JTAG_MAX_CHAIN_SIZE 20
944
945 #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
946 #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
947 #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
948
949 static int jtag_examine_chain_execute(u8 *idcode_buffer, unsigned num_idcode)
950 {
951 scan_field_t field = {
952 .tap = NULL,
953 .num_bits = num_idcode * 32,
954 .out_value = idcode_buffer,
955 .in_value = idcode_buffer,
956 };
957
958 // initialize to the end of chain ID value
959 for (unsigned i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
960 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
961
962 jtag_add_plain_dr_scan(1, &field, TAP_RESET);
963 return jtag_execute_queue();
964 }
965
966 static bool jtag_examine_chain_check(u8 *idcodes, unsigned count)
967 {
968 u8 zero_check = 0x0;
969 u8 one_check = 0xff;
970
971 for (unsigned i = 0; i < count * 4; i++)
972 {
973 zero_check |= idcodes[i];
974 one_check &= idcodes[i];
975 }
976
977 /* if there wasn't a single non-zero bit or if all bits were one,
978 * the scan is not valid */
979 if (zero_check == 0x00 || one_check == 0xff)
980 {
981 LOG_ERROR("JTAG communication failure: check connection, "
982 "JTAG interface, target power etc.");
983 return false;
984 }
985 return true;
986 }
987
988 static void jtag_examine_chain_display(enum log_levels level, const char *msg,
989 const char *name, u32 idcode)
990 {
991 log_printf_lf(level, __FILE__, __LINE__, __FUNCTION__,
992 "JTAG tap: %s %16.16s: 0x%08x "
993 "(mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
994 name, msg, idcode,
995 EXTRACT_MFG(idcode), EXTRACT_PART(idcode), EXTRACT_VER(idcode) );
996 }
997
998 static bool jtag_idcode_is_final(u32 idcode)
999 {
1000 return idcode == 0x000000FF || idcode == 0xFFFFFFFF;
1001 }
1002
1003 /**
1004 * This helper checks that remaining bits in the examined chain data are
1005 * all as expected, but a single JTAG device requires only 64 bits to be
1006 * read back correctly. This can help identify and diagnose problems
1007 * with the JTAG chain earlier, gives more helpful/explicit error messages.
1008 */
1009 static void jtag_examine_chain_end(u8 *idcodes, unsigned count, unsigned max)
1010 {
1011 bool triggered = false;
1012 for ( ; count < max - 31; count += 32)
1013 {
1014 u32 idcode = buf_get_u32(idcodes, count, 32);
1015 // do not trigger the warning if the data looks good
1016 if (!triggered && jtag_idcode_is_final(idcode))
1017 continue;
1018 LOG_WARNING("Unexpected idcode after end of chain: %d 0x%08x",
1019 count, idcode);
1020 triggered = true;
1021 }
1022 }
1023
1024 /* Try to examine chain layout according to IEEE 1149.1 §12
1025 */
1026 static int jtag_examine_chain(void)
1027 {
1028 jtag_tap_t *tap;
1029 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1030 int bit_count;
1031 int device_count = 0;
1032
1033 jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE);
1034
1035 if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE))
1036 return ERROR_JTAG_INIT_FAILED;
1037
1038 /* point at the 1st tap */
1039 tap = jtag_tap_next_enabled(NULL);
1040 if( tap == NULL ){
1041 LOG_ERROR("JTAG: No taps enabled?");
1042 return ERROR_JTAG_INIT_FAILED;
1043 }
1044
1045 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1046 {
1047 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1048 if ((idcode & 1) == 0)
1049 {
1050 /* LSB must not be 0, this indicates a device in bypass */
1051 LOG_WARNING("Tap/Device does not have IDCODE");
1052 idcode=0;
1053
1054 bit_count += 1;
1055 }
1056 else
1057 {
1058 /*
1059 * End of chain (invalid manufacturer ID) some devices, such
1060 * as AVR will output all 1's instead of TDI input value at
1061 * end of chain.
1062 */
1063 if (jtag_idcode_is_final(idcode))
1064 {
1065 jtag_examine_chain_end(idcode_buffer,
1066 bit_count + 32, JTAG_MAX_CHAIN_SIZE * 32);
1067 break;
1068 }
1069
1070 jtag_examine_chain_display(LOG_LVL_INFO, "tap/device found",
1071 tap ? tap->dotted_name : "(not-named)",
1072 idcode);
1073
1074 bit_count += 32;
1075 }
1076 device_count++;
1077 if (!tap)
1078 continue;
1079
1080 tap->idcode = idcode;
1081
1082 if (0 == tap->expected_ids_cnt)
1083 {
1084 // @todo Enable LOG_INFO to ask for reports about unknown TAP IDs.
1085 #if 0
1086 LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode)
1087 LOG_INFO("Please report the chip name and reported ID code to the openocd project");
1088 #endif
1089 tap = jtag_tap_next_enabled(tap);
1090 continue;
1091 }
1092 /* Loop over the expected identification codes and test for a match */
1093 u8 ii;
1094 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1095 if (tap->idcode == tap->expected_ids[ii]) {
1096 break;
1097 }
1098 }
1099
1100 /* If none of the expected ids matched, log an error */
1101 if (ii != tap->expected_ids_cnt)
1102 {
1103 LOG_INFO("JTAG Tap/device matched");
1104 tap = jtag_tap_next_enabled(tap);
1105 continue;
1106 }
1107 jtag_examine_chain_display(LOG_LVL_ERROR, "got",
1108 tap->dotted_name, tap->idcode);
1109 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1110 char msg[20];
1111 snprintf(msg, 20, "expected %hhu of %hhu",
1112 ii + 1, tap->expected_ids_cnt);
1113 jtag_examine_chain_display(LOG_LVL_ERROR, msg,
1114 tap->dotted_name, tap->expected_ids[ii]);
1115 }
1116 return ERROR_JTAG_INIT_FAILED;
1117 }
1118
1119 /* see if number of discovered devices matches configuration */
1120 if (device_count != jtag_tap_count_enabled())
1121 {
1122 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match (enabled) configuration (%i), total taps: %d",
1123 device_count, jtag_tap_count_enabled(), jtag_tap_count());
1124 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1125 return ERROR_JTAG_INIT_FAILED;
1126 }
1127
1128 return ERROR_OK;
1129 }
1130
1131 static int jtag_validate_chain(void)
1132 {
1133 jtag_tap_t *tap;
1134 int total_ir_length = 0;
1135 u8 *ir_test = NULL;
1136 scan_field_t field;
1137 int chain_pos = 0;
1138
1139 tap = NULL;
1140 total_ir_length = 0;
1141 for(;;){
1142 tap = jtag_tap_next_enabled(tap);
1143 if( tap == NULL ){
1144 break;
1145 }
1146 total_ir_length += tap->ir_length;
1147 }
1148
1149 total_ir_length += 2;
1150 ir_test = malloc(CEIL(total_ir_length, 8));
1151 buf_set_ones(ir_test, total_ir_length);
1152
1153 field.tap = NULL;
1154 field.num_bits = total_ir_length;
1155 field.out_value = ir_test;
1156 field.in_value = ir_test;
1157
1158
1159 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1160 jtag_execute_queue();
1161
1162 tap = NULL;
1163 chain_pos = 0;
1164 int val;
1165 for(;;){
1166 tap = jtag_tap_next_enabled(tap);
1167 if( tap == NULL ){
1168 break;
1169 }
1170
1171 val = buf_get_u32(ir_test, chain_pos, 2);
1172 if (val != 0x1)
1173 {
1174 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1175 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);
1176 free(cbuf);
1177 free(ir_test);
1178 return ERROR_JTAG_INIT_FAILED;
1179 }
1180 chain_pos += tap->ir_length;
1181 }
1182
1183 val = buf_get_u32(ir_test, chain_pos, 2);
1184 if (val != 0x3)
1185 {
1186 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1187 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);
1188 free(cbuf);
1189 free(ir_test);
1190 return ERROR_JTAG_INIT_FAILED;
1191 }
1192
1193 free(ir_test);
1194
1195 return ERROR_OK;
1196 }
1197
1198 enum jtag_tap_cfg_param {
1199 JCFG_EVENT
1200 };
1201
1202 static Jim_Nvp nvp_config_opts[] = {
1203 { .name = "-event", .value = JCFG_EVENT },
1204
1205 { .name = NULL, .value = -1 }
1206 };
1207
1208 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
1209 {
1210 Jim_Nvp *n;
1211 Jim_Obj *o;
1212 int e;
1213
1214 /* parse config or cget options */
1215 while (goi->argc > 0) {
1216 Jim_SetEmptyResult (goi->interp);
1217
1218 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1219 if (e != JIM_OK) {
1220 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1221 return e;
1222 }
1223
1224 switch (n->value) {
1225 case JCFG_EVENT:
1226 if (goi->argc == 0) {
1227 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1228 return JIM_ERR;
1229 }
1230
1231 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1232 if (e != JIM_OK) {
1233 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1234 return e;
1235 }
1236
1237 if (goi->isconfigure) {
1238 if (goi->argc != 1) {
1239 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1240 return JIM_ERR;
1241 }
1242 } else {
1243 if (goi->argc != 0) {
1244 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1245 return JIM_ERR;
1246 }
1247 }
1248
1249 {
1250 jtag_tap_event_action_t *jteap;
1251
1252 jteap = tap->event_action;
1253 /* replace existing? */
1254 while (jteap) {
1255 if (jteap->event == (enum jtag_tap_event)n->value) {
1256 break;
1257 }
1258 jteap = jteap->next;
1259 }
1260
1261 if (goi->isconfigure) {
1262 if (jteap == NULL) {
1263 /* create new */
1264 jteap = calloc(1, sizeof (*jteap));
1265 }
1266 jteap->event = n->value;
1267 Jim_GetOpt_Obj( goi, &o);
1268 if (jteap->body) {
1269 Jim_DecrRefCount(interp, jteap->body);
1270 }
1271 jteap->body = Jim_DuplicateObj(goi->interp, o);
1272 Jim_IncrRefCount(jteap->body);
1273
1274 /* add to head of event list */
1275 jteap->next = tap->event_action;
1276 tap->event_action = jteap;
1277 Jim_SetEmptyResult(goi->interp);
1278 } else {
1279 /* get */
1280 if (jteap == NULL) {
1281 Jim_SetEmptyResult(goi->interp);
1282 } else {
1283 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1284 }
1285 }
1286 }
1287 /* loop for more */
1288 break;
1289 }
1290 } /* while (goi->argc) */
1291
1292 return JIM_OK;
1293 }
1294
1295
1296 static void jtag_tap_init(jtag_tap_t *tap)
1297 {
1298 assert(0 != tap->ir_length);
1299
1300 tap->expected = malloc(tap->ir_length);
1301 tap->expected_mask = malloc(tap->ir_length);
1302 tap->cur_instr = malloc(tap->ir_length);
1303
1304 buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
1305 buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
1306 buf_set_ones(tap->cur_instr, tap->ir_length);
1307
1308 // place TAP in bypass mode
1309 tap->bypass = 1;
1310 // register the reset callback for the TAP
1311 jtag_register_event_callback(&jtag_reset_callback, tap);
1312
1313 LOG_DEBUG("Created Tap: %s @ abs position %d, "
1314 "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name,
1315 tap->abs_chain_position, tap->ir_length,
1316 tap->ir_capture_value, tap->ir_capture_mask);
1317 jtag_tap_add(tap);
1318 }
1319
1320 static void jtag_tap_free(jtag_tap_t *tap)
1321 {
1322 /// @todo is anything missing? no memory leaks please
1323 free((void *)tap->expected_ids);
1324 free((void *)tap->chip);
1325 free((void *)tap->tapname);
1326 free((void *)tap->dotted_name);
1327 free(tap);
1328 }
1329
1330 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1331 {
1332 jtag_tap_t *pTap;
1333 jim_wide w;
1334 int x;
1335 int e;
1336 int reqbits;
1337 Jim_Nvp *n;
1338 char *cp;
1339 const Jim_Nvp opts[] = {
1340 #define NTAP_OPT_IRLEN 0
1341 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1342 #define NTAP_OPT_IRMASK 1
1343 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1344 #define NTAP_OPT_IRCAPTURE 2
1345 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1346 #define NTAP_OPT_ENABLED 3
1347 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1348 #define NTAP_OPT_DISABLED 4
1349 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1350 #define NTAP_OPT_EXPECTED_ID 5
1351 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1352 { .name = NULL , .value = -1 },
1353 };
1354
1355 pTap = malloc( sizeof(jtag_tap_t) );
1356 memset( pTap, 0, sizeof(*pTap) );
1357 if( !pTap ){
1358 Jim_SetResult_sprintf( goi->interp, "no memory");
1359 return JIM_ERR;
1360 }
1361 /*
1362 * we expect CHIP + TAP + OPTIONS
1363 * */
1364 if( goi->argc < 3 ){
1365 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1366 return JIM_ERR;
1367 }
1368 Jim_GetOpt_String( goi, &cp, NULL );
1369 pTap->chip = strdup(cp);
1370
1371 Jim_GetOpt_String( goi, &cp, NULL );
1372 pTap->tapname = strdup(cp);
1373
1374 /* name + dot + name + null */
1375 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1376 cp = malloc( x );
1377 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1378 pTap->dotted_name = cp;
1379
1380 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1381 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1382
1383 /* default is enabled */
1384 pTap->enabled = 1;
1385
1386 /* deal with options */
1387 #define NTREQ_IRLEN 1
1388 #define NTREQ_IRCAPTURE 2
1389 #define NTREQ_IRMASK 4
1390
1391 /* clear them as we find them */
1392 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1393
1394 while( goi->argc ){
1395 e = Jim_GetOpt_Nvp( goi, opts, &n );
1396 if( e != JIM_OK ){
1397 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1398 return e;
1399 }
1400 LOG_DEBUG("Processing option: %s", n->name );
1401 switch( n->value ){
1402 case NTAP_OPT_ENABLED:
1403 pTap->enabled = 1;
1404 break;
1405 case NTAP_OPT_DISABLED:
1406 pTap->enabled = 0;
1407 break;
1408 case NTAP_OPT_EXPECTED_ID:
1409 {
1410 u32 *new_expected_ids;
1411
1412 e = Jim_GetOpt_Wide( goi, &w );
1413 if( e != JIM_OK) {
1414 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1415 return e;
1416 }
1417
1418 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1419 if (new_expected_ids == NULL) {
1420 Jim_SetResult_sprintf( goi->interp, "no memory");
1421 return JIM_ERR;
1422 }
1423
1424 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1425
1426 new_expected_ids[pTap->expected_ids_cnt] = w;
1427
1428 free(pTap->expected_ids);
1429 pTap->expected_ids = new_expected_ids;
1430 pTap->expected_ids_cnt++;
1431 break;
1432 }
1433 case NTAP_OPT_IRLEN:
1434 case NTAP_OPT_IRMASK:
1435 case NTAP_OPT_IRCAPTURE:
1436 e = Jim_GetOpt_Wide( goi, &w );
1437 if( e != JIM_OK ){
1438 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1439 return e;
1440 }
1441 if( (w < 0) || (w > 0xffff) ){
1442 /* wacky value */
1443 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1444 n->name, (int)(w), (int)(w));
1445 return JIM_ERR;
1446 }
1447 switch(n->value){
1448 case NTAP_OPT_IRLEN:
1449 pTap->ir_length = w;
1450 reqbits &= (~(NTREQ_IRLEN));
1451 break;
1452 case NTAP_OPT_IRMASK:
1453 pTap->ir_capture_mask = w;
1454 reqbits &= (~(NTREQ_IRMASK));
1455 break;
1456 case NTAP_OPT_IRCAPTURE:
1457 pTap->ir_capture_value = w;
1458 reqbits &= (~(NTREQ_IRCAPTURE));
1459 break;
1460 }
1461 } /* switch(n->value) */
1462 } /* while( goi->argc ) */
1463
1464 /* Did all the required option bits get cleared? */
1465 if (0 == reqbits)
1466 {
1467 jtag_tap_init(pTap);
1468 return ERROR_OK;
1469 }
1470
1471 Jim_SetResult_sprintf(goi->interp,
1472 "newtap: %s missing required parameters",
1473 pTap->dotted_name);
1474 jtag_tap_free(pTap);
1475 return JIM_ERR;
1476 }
1477
1478 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
1479 {
1480 Jim_GetOptInfo goi;
1481 int e;
1482 Jim_Nvp *n;
1483 Jim_Obj *o;
1484 struct command_context_s *context;
1485
1486 enum {
1487 JTAG_CMD_INTERFACE,
1488 JTAG_CMD_INIT_RESET,
1489 JTAG_CMD_NEWTAP,
1490 JTAG_CMD_TAPENABLE,
1491 JTAG_CMD_TAPDISABLE,
1492 JTAG_CMD_TAPISENABLED,
1493 JTAG_CMD_CONFIGURE,
1494 JTAG_CMD_CGET
1495 };
1496
1497 const Jim_Nvp jtag_cmds[] = {
1498 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
1499 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
1500 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
1501 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
1502 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
1503 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
1504 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
1505 { .name = "cget" , .value = JTAG_CMD_CGET },
1506
1507 { .name = NULL, .value = -1 },
1508 };
1509
1510 context = Jim_GetAssocData(interp, "context");
1511 /* go past the command */
1512 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
1513
1514 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
1515 if( e != JIM_OK ){
1516 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
1517 return e;
1518 }
1519 Jim_SetEmptyResult( goi.interp );
1520 switch( n->value ){
1521 case JTAG_CMD_INTERFACE:
1522 /* return the name of the interface */
1523 /* TCL code might need to know the exact type... */
1524 /* FUTURE: we allow this as a means to "set" the interface. */
1525 if( goi.argc != 0 ){
1526 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1527 return JIM_ERR;
1528 }
1529 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
1530 return JIM_OK;
1531 case JTAG_CMD_INIT_RESET:
1532 if( goi.argc != 0 ){
1533 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1534 return JIM_ERR;
1535 }
1536 e = jtag_init_reset(context);
1537 if( e != ERROR_OK ){
1538 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
1539 return JIM_ERR;
1540 }
1541 return JIM_OK;
1542 case JTAG_CMD_NEWTAP:
1543 return jim_newtap_cmd( &goi );
1544 break;
1545 case JTAG_CMD_TAPISENABLED:
1546 case JTAG_CMD_TAPENABLE:
1547 case JTAG_CMD_TAPDISABLE:
1548 if( goi.argc != 1 ){
1549 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
1550 return JIM_ERR;
1551 }
1552
1553 {
1554 jtag_tap_t *t;
1555 t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
1556 if( t == NULL ){
1557 return JIM_ERR;
1558 }
1559 switch( n->value ){
1560 case JTAG_CMD_TAPISENABLED:
1561 e = t->enabled;
1562 break;
1563 case JTAG_CMD_TAPENABLE:
1564 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
1565 e = 1;
1566 t->enabled = e;
1567 break;
1568 case JTAG_CMD_TAPDISABLE:
1569 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
1570 e = 0;
1571 t->enabled = e;
1572 break;
1573 }
1574 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
1575 return JIM_OK;
1576 }
1577 break;
1578
1579 case JTAG_CMD_CGET:
1580 if( goi.argc < 2 ){
1581 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
1582 return JIM_ERR;
1583 }
1584
1585 {
1586 jtag_tap_t *t;
1587
1588 Jim_GetOpt_Obj(&goi, &o);
1589 t = jtag_tap_by_jim_obj( goi.interp, o );
1590 if( t == NULL ){
1591 return JIM_ERR;
1592 }
1593
1594 goi.isconfigure = 0;
1595 return jtag_tap_configure_cmd( &goi, t);
1596 }
1597 break;
1598
1599 case JTAG_CMD_CONFIGURE:
1600 if( goi.argc < 3 ){
1601 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
1602 return JIM_ERR;
1603 }
1604
1605 {
1606 jtag_tap_t *t;
1607
1608 Jim_GetOpt_Obj(&goi, &o);
1609 t = jtag_tap_by_jim_obj( goi.interp, o );
1610 if( t == NULL ){
1611 return JIM_ERR;
1612 }
1613
1614 goi.isconfigure = 1;
1615 return jtag_tap_configure_cmd( &goi, t);
1616 }
1617 }
1618
1619 return JIM_ERR;
1620 }
1621
1622 int jtag_register_commands(struct command_context_s *cmd_ctx)
1623 {
1624 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
1625
1626 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1627 COMMAND_CONFIG, "try to configure interface");
1628 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1629 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
1630 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1631 COMMAND_ANY, "set maximum jtag speed (if supported); "
1632 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
1633 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1634 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
1635 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1636 COMMAND_ANY,
1637 "[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]");
1638 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1639 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1640 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1641 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1642
1643 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1644 COMMAND_EXEC, "print current scan chain configuration");
1645
1646 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1647 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1648 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1649 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1650 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1651 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1652 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1653 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1654 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1655 register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
1656
1657 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1658 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1659 register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
1660 COMMAND_ANY, "verify value capture <enable|disable>");
1661 register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
1662 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
1663 return ERROR_OK;
1664 }
1665
1666 int jtag_interface_init(struct command_context_s *cmd_ctx)
1667 {
1668 if (jtag)
1669 return ERROR_OK;
1670
1671 if (!jtag_interface)
1672 {
1673 /* nothing was previously specified by "interface" command */
1674 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1675 return ERROR_JTAG_INVALID_INTERFACE;
1676 }
1677 if(hasKHz)
1678 {
1679 jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed);
1680 hasKHz = false;
1681 }
1682
1683 if (jtag_interface->init() != ERROR_OK)
1684 return ERROR_JTAG_INIT_FAILED;
1685
1686 jtag = jtag_interface;
1687 return ERROR_OK;
1688 }
1689
1690 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1691 {
1692 jtag_tap_t *tap;
1693 int retval;
1694
1695 LOG_DEBUG("Init JTAG chain");
1696
1697 tap = jtag_tap_next_enabled(NULL);
1698 if( tap == NULL ){
1699 LOG_ERROR("There are no enabled taps?");
1700 return ERROR_JTAG_INIT_FAILED;
1701 }
1702
1703 jtag_add_tlr();
1704 if ((retval=jtag_execute_queue())!=ERROR_OK)
1705 return retval;
1706
1707 /* examine chain first, as this could discover the real chain layout */
1708 if (jtag_examine_chain() != ERROR_OK)
1709 {
1710 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1711 }
1712
1713 if (jtag_validate_chain() != ERROR_OK)
1714 {
1715 LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
1716 }
1717
1718 return ERROR_OK;
1719 }
1720
1721 int jtag_interface_quit(void)
1722 {
1723 if (!jtag || !jtag->quit)
1724 return ERROR_OK;
1725
1726 // close the JTAG interface
1727 int result = jtag->quit();
1728 if (ERROR_OK != result)
1729 LOG_ERROR("failed: %d", result);
1730
1731 return ERROR_OK;
1732 }
1733
1734
1735 int jtag_init_reset(struct command_context_s *cmd_ctx)
1736 {
1737 int retval;
1738
1739 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1740 return retval;
1741
1742 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
1743
1744 /* Reset can happen after a power cycle.
1745 *
1746 * Ideally we would only assert TRST or run RESET before the target reset.
1747 *
1748 * However w/srst_pulls_trst, trst is asserted together with the target
1749 * reset whether we want it or not.
1750 *
1751 * NB! Some targets have JTAG circuitry disabled until a
1752 * trst & srst has been asserted.
1753 *
1754 * NB! here we assume nsrst/ntrst delay are sufficient!
1755 *
1756 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1757 *
1758 */
1759 jtag_add_reset(1, 0); /* RESET or TRST */
1760 if (jtag_reset_config & RESET_HAS_SRST)
1761 {
1762 jtag_add_reset(1, 1);
1763 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1764 jtag_add_reset(0, 1);
1765 }
1766 jtag_add_reset(0, 0);
1767 if ((retval = jtag_execute_queue()) != ERROR_OK)
1768 return retval;
1769
1770 /* Check that we can communication on the JTAG chain + eventually we want to
1771 * be able to perform enumeration only after OpenOCD has started
1772 * telnet and GDB server
1773 *
1774 * That would allow users to more easily perform any magic they need to before
1775 * reset happens.
1776 */
1777 return jtag_init_inner(cmd_ctx);
1778 }
1779
1780 int jtag_init(struct command_context_s *cmd_ctx)
1781 {
1782 int retval;
1783 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1784 return retval;
1785 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1786 {
1787 return ERROR_OK;
1788 }
1789 return jtag_init_reset(cmd_ctx);
1790 }
1791
1792 void jtag_set_speed_khz(unsigned khz)
1793 {
1794 speed_khz = khz;
1795 }
1796 unsigned jtag_get_speed_khz(void)
1797 {
1798 return speed_khz;
1799 }
1800
1801 static int default_khz(int khz, int *jtag_speed)
1802 {
1803 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1804 return ERROR_FAIL;
1805 }
1806
1807 static int default_speed_div(int speed, int *khz)
1808 {
1809 LOG_ERROR("Translation from jtag_speed to khz not implemented");
1810 return ERROR_FAIL;
1811 }
1812
1813 static int default_power_dropout(int *dropout)
1814 {
1815 *dropout=0; /* by default we can't detect power dropout */
1816 return ERROR_OK;
1817 }
1818
1819 static int default_srst_asserted(int *srst_asserted)
1820 {
1821 *srst_asserted=0; /* by default we can't detect srst asserted */
1822 return ERROR_OK;
1823 }
1824
1825 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1826 {
1827 int i;
1828 int retval;
1829
1830 /* check whether the interface is already configured */
1831 if (jtag_interface)
1832 {
1833 LOG_WARNING("Interface already configured, ignoring");
1834 return ERROR_OK;
1835 }
1836
1837 /* interface name is a mandatory argument */
1838 if (argc < 1 || args[0][0] == '\0')
1839 {
1840 return ERROR_COMMAND_SYNTAX_ERROR;
1841 }
1842
1843 for (i=0; jtag_interfaces[i]; i++)
1844 {
1845 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1846 {
1847 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
1848 {
1849 return retval;
1850 }
1851
1852 jtag_interface = jtag_interfaces[i];
1853
1854 if (jtag_interface->khz == NULL)
1855 {
1856 jtag_interface->khz = default_khz;
1857 }
1858 if (jtag_interface->speed_div == NULL)
1859 {
1860 jtag_interface->speed_div = default_speed_div;
1861 }
1862 if (jtag_interface->power_dropout == NULL)
1863 {
1864 jtag_interface->power_dropout = default_power_dropout;
1865 }
1866 if (jtag_interface->srst_asserted == NULL)
1867 {
1868 jtag_interface->srst_asserted = default_srst_asserted;
1869 }
1870
1871 return ERROR_OK;
1872 }
1873 }
1874
1875 /* no valid interface was found (i.e. the configuration option,
1876 * didn't match one of the compiled-in interfaces
1877 */
1878 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1879 LOG_ERROR("compiled-in jtag interfaces:");
1880 for (i = 0; jtag_interfaces[i]; i++)
1881 {
1882 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1883 }
1884
1885 return ERROR_JTAG_INVALID_INTERFACE;
1886 }
1887
1888 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1889 {
1890 int e;
1891 char buf[1024];
1892 Jim_Obj *newargs[ 10 ];
1893 /*
1894 * CONVERT SYNTAX
1895 * argv[-1] = command
1896 * argv[ 0] = ir length
1897 * argv[ 1] = ir capture
1898 * argv[ 2] = ir mask
1899 * argv[ 3] = not actually used by anything but in the docs
1900 */
1901
1902 if( argc < 4 ){
1903 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
1904 return ERROR_OK;
1905 }
1906 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
1907 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
1908 args[0],
1909 args[1],
1910 args[2] );
1911 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
1912 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
1913 command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
1914 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
1915
1916 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
1917 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
1918 sprintf( buf, "chip%d", jtag_tap_count() );
1919 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
1920 sprintf( buf, "tap%d", jtag_tap_count() );
1921 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
1922 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
1923 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
1924 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
1925 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
1926 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
1927 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
1928
1929 command_print( cmd_ctx, "NEW COMMAND:");
1930 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
1931 Jim_GetString( newargs[0], NULL ),
1932 Jim_GetString( newargs[1], NULL ),
1933 Jim_GetString( newargs[2], NULL ),
1934 Jim_GetString( newargs[3], NULL ),
1935 Jim_GetString( newargs[4], NULL ),
1936 Jim_GetString( newargs[5], NULL ),
1937 Jim_GetString( newargs[6], NULL ),
1938 Jim_GetString( newargs[7], NULL ),
1939 Jim_GetString( newargs[8], NULL ),
1940 Jim_GetString( newargs[9], NULL ) );
1941
1942 e = jim_jtag_command( interp, 10, newargs );
1943 if( e != JIM_OK ){
1944 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
1945 }
1946 return e;
1947 }
1948
1949 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1950 {
1951 jtag_tap_t *tap;
1952
1953 tap = jtag_all_taps();
1954 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
1955 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
1956
1957 while( tap ){
1958 u32 expected, expected_mask, cur_instr, ii;
1959 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
1960 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
1961 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
1962
1963 command_print(cmd_ctx,
1964 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
1965 tap->abs_chain_position,
1966 tap->dotted_name,
1967 tap->enabled ? 'Y' : 'n',
1968 tap->idcode,
1969 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
1970 tap->ir_length,
1971 expected,
1972 expected_mask,
1973 cur_instr);
1974
1975 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
1976 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
1977 tap->expected_ids[ii]);
1978 }
1979
1980 tap = tap->next_tap;
1981 }
1982
1983 return ERROR_OK;
1984 }
1985
1986 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1987 {
1988 int new_cfg = 0;
1989 int mask = 0;
1990
1991 if (argc < 1)
1992 return ERROR_COMMAND_SYNTAX_ERROR;
1993
1994 /* Original versions cared about the order of these tokens:
1995 * reset_config signals [combination [trst_type [srst_type]]]
1996 * They also clobbered the previous configuration even on error.
1997 *
1998 * Here we don't care about the order, and only change values
1999 * which have been explicitly specified.
2000 */
2001 for (; argc; argc--, args++) {
2002 int tmp = 0;
2003 int m;
2004
2005 /* signals */
2006 m = RESET_HAS_TRST | RESET_HAS_SRST;
2007 if (strcmp(*args, "none") == 0)
2008 tmp = RESET_NONE;
2009 else if (strcmp(*args, "trst_only") == 0)
2010 tmp = RESET_HAS_TRST;
2011 else if (strcmp(*args, "srst_only") == 0)
2012 tmp = RESET_HAS_SRST;
2013 else if (strcmp(*args, "trst_and_srst") == 0)
2014 tmp = RESET_HAS_TRST | RESET_HAS_SRST;
2015 else
2016 m = 0;
2017 if (mask & m) {
2018 LOG_ERROR("extra reset_config %s spec (%s)",
2019 "signal", *args);
2020 return ERROR_INVALID_ARGUMENTS;
2021 }
2022 if (m)
2023 goto next;
2024
2025 /* combination (options for broken wiring) */
2026 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2027 if (strcmp(*args, "separate") == 0)
2028 /* separate reset lines - default */;
2029 else if (strcmp(*args, "srst_pulls_trst") == 0)
2030 tmp |= RESET_SRST_PULLS_TRST;
2031 else if (strcmp(*args, "trst_pulls_srst") == 0)
2032 tmp |= RESET_TRST_PULLS_SRST;
2033 else if (strcmp(*args, "combined") == 0)
2034 tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2035 else
2036 m = 0;
2037 if (mask & m) {
2038 LOG_ERROR("extra reset_config %s spec (%s)",
2039 "combination", *args);
2040 return ERROR_INVALID_ARGUMENTS;
2041 }
2042 if (m)
2043 goto next;
2044
2045 /* trst_type (NOP without HAS_TRST) */
2046 m = RESET_TRST_OPEN_DRAIN;
2047 if (strcmp(*args, "trst_open_drain") == 0)
2048 tmp |= RESET_TRST_OPEN_DRAIN;
2049 else if (strcmp(*args, "trst_push_pull") == 0)
2050 /* push/pull from adapter - default */;
2051 else
2052 m = 0;
2053 if (mask & m) {
2054 LOG_ERROR("extra reset_config %s spec (%s)",
2055 "trst_type", *args);
2056 return ERROR_INVALID_ARGUMENTS;
2057 }
2058 if (m)
2059 goto next;
2060
2061 /* srst_type (NOP without HAS_SRST) */
2062 m |= RESET_SRST_PUSH_PULL;
2063 if (strcmp(*args, "srst_push_pull") == 0)
2064 tmp |= RESET_SRST_PUSH_PULL;
2065 else if (strcmp(*args, "srst_open_drain") == 0)
2066 /* open drain from adapter - default */;
2067 else
2068 m = 0;
2069 if (mask & m) {
2070 LOG_ERROR("extra reset_config %s spec (%s)",
2071 "srst_type", *args);
2072 return ERROR_INVALID_ARGUMENTS;
2073 }
2074 if (m)
2075 goto next;
2076
2077 /* caller provided nonsense; fail */
2078 LOG_ERROR("unknown reset_config flag (%s)", *args);
2079 return ERROR_INVALID_ARGUMENTS;
2080
2081 next:
2082 /* Remember the bits which were specified (mask)
2083 * and their new values (new_cfg).
2084 */
2085 mask |= m;
2086 new_cfg |= tmp;
2087 }
2088
2089 /* clear previous values of those bits, save new values */
2090 jtag_reset_config &= ~mask;
2091 jtag_reset_config |= new_cfg;
2092
2093 return ERROR_OK;
2094 }
2095
2096 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2097 {
2098 if (argc < 1)
2099 {
2100 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
2101 exit(-1);
2102 }
2103 else
2104 {
2105 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
2106 }
2107
2108 return ERROR_OK;
2109 }
2110
2111 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2112 {
2113 if (argc < 1)
2114 {
2115 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
2116 exit(-1);
2117 }
2118 else
2119 {
2120 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
2121 }
2122
2123 return ERROR_OK;
2124 }
2125
2126
2127 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2128 {
2129 int retval=ERROR_OK;
2130
2131 if (argc == 1)
2132 {
2133 LOG_DEBUG("handle jtag speed");
2134
2135 int cur_speed = 0;
2136 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2137
2138 /* this command can be called during CONFIG,
2139 * in which case jtag isn't initialized */
2140 if (jtag)
2141 {
2142 retval=jtag->speed(cur_speed);
2143 }
2144 } else if (argc == 0)
2145 {
2146 } else
2147 {
2148 return ERROR_COMMAND_SYNTAX_ERROR;
2149 }
2150 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2151
2152 return retval;
2153 }
2154
2155 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2156 {
2157 int retval=ERROR_OK;
2158 LOG_DEBUG("handle jtag khz");
2159
2160 int cur_speed = 0;
2161 if(argc == 1)
2162 {
2163 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
2164 if (jtag != NULL)
2165 {
2166 LOG_DEBUG("have interface set up");
2167 int speed_div1;
2168 if ((retval=jtag->khz(jtag_get_speed_khz(), &speed_div1))!=ERROR_OK)
2169 {
2170 jtag_set_speed_khz(0);
2171 return retval;
2172 }
2173
2174 cur_speed = jtag_speed = speed_div1;
2175
2176 retval=jtag->speed(cur_speed);
2177 } else
2178 {
2179 hasKHz = true;
2180 }
2181 } else if (argc==0)
2182 {
2183 } else
2184 {
2185 return ERROR_COMMAND_SYNTAX_ERROR;
2186 }
2187 cur_speed = jtag_get_speed_khz();
2188
2189 if (jtag!=NULL)
2190 {
2191 if ((retval=jtag->speed_div(jtag_speed, &cur_speed))!=ERROR_OK)
2192 return retval;
2193 }
2194
2195 if (cur_speed)
2196 command_print(cmd_ctx, "%d kHz", cur_speed);
2197 else
2198 command_print(cmd_ctx, "RCLK - adaptive");
2199 return retval;
2200
2201 }
2202
2203 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2204 {
2205 if (argc < 1)
2206 return ERROR_COMMAND_SYNTAX_ERROR;
2207
2208 tap_state_t state = tap_state_by_name(args[0]);
2209 if (state < 0)
2210 {
2211 command_print( cmd_ctx, "Invalid state name: %s\n", args[0] );
2212 return ERROR_COMMAND_SYNTAX_ERROR;
2213 }
2214 jtag_set_end_state(state);
2215 jtag_execute_queue();
2216
2217 command_print(cmd_ctx, "current endstate: %s",
2218 tap_state_name(cmd_queue_end_state));
2219
2220 return ERROR_OK;
2221 }
2222
2223 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2224 {
2225 int trst = -1;
2226 int srst = -1;
2227
2228 if (argc < 2)
2229 {
2230 return ERROR_COMMAND_SYNTAX_ERROR;
2231 }
2232
2233 if (args[0][0] == '1')
2234 trst = 1;
2235 else if (args[0][0] == '0')
2236 trst = 0;
2237 else
2238 {
2239 return ERROR_COMMAND_SYNTAX_ERROR;
2240 }
2241
2242 if (args[1][0] == '1')
2243 srst = 1;
2244 else if (args[1][0] == '0')
2245 srst = 0;
2246 else
2247 {
2248 return ERROR_COMMAND_SYNTAX_ERROR;
2249 }
2250
2251 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2252 return ERROR_JTAG_INIT_FAILED;
2253
2254 jtag_add_reset(trst, srst);
2255 jtag_execute_queue();
2256
2257 return ERROR_OK;
2258 }
2259
2260 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2261 {
2262 if (argc < 1)
2263 {
2264 return ERROR_COMMAND_SYNTAX_ERROR;
2265 }
2266
2267 jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
2268 jtag_execute_queue();
2269
2270 return ERROR_OK;
2271
2272 }
2273
2274 /*
2275 * For "irscan" or "drscan" commands, the "end" (really, "next") state
2276 * should be stable ... and *NOT* a shift state, otherwise free-running
2277 * jtag clocks could change the values latched by the update state.
2278 */
2279 static bool scan_is_safe(tap_state_t state)
2280 {
2281 switch (state)
2282 {
2283 case TAP_RESET:
2284 case TAP_IDLE:
2285 case TAP_DRPAUSE:
2286 case TAP_IRPAUSE:
2287 return true;
2288 default:
2289 return false;
2290 }
2291 }
2292
2293
2294 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2295 {
2296 int i;
2297 scan_field_t *fields;
2298 jtag_tap_t *tap;
2299 tap_state_t endstate;
2300
2301 if ((argc < 2) || (argc % 2))
2302 {
2303 return ERROR_COMMAND_SYNTAX_ERROR;
2304 }
2305
2306 /* optional "-endstate" "statename" at the end of the arguments,
2307 * so that e.g. IRPAUSE can let us load the data register before
2308 * entering RUN/IDLE to execute the instruction we load here.
2309 */
2310 endstate = TAP_IDLE;
2311
2312 if( argc >= 4 ){
2313 /* have at least one pair of numbers. */
2314 /* is last pair the magic text? */
2315 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
2316 const char *cpA;
2317 const char *cpS;
2318 cpA = args[ argc-1 ];
2319 for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
2320 cpS = tap_state_name( endstate );
2321 if( 0 == strcmp( cpA, cpS ) ){
2322 break;
2323 }
2324 }
2325 if( endstate >= TAP_NUM_STATES ){
2326 return ERROR_COMMAND_SYNTAX_ERROR;
2327 } else {
2328 if (!scan_is_safe(endstate))
2329 LOG_WARNING("irscan with unsafe "
2330 "endstate \"%s\"", cpA);
2331 /* found - remove the last 2 args */
2332 argc -= 2;
2333 }
2334 }
2335 }
2336
2337 int num_fields = argc / 2;
2338
2339 fields = malloc(sizeof(scan_field_t) * num_fields);
2340
2341 for (i = 0; i < num_fields; i++)
2342 {
2343 tap = jtag_tap_by_string( args[i*2] );
2344 if (tap==NULL)
2345 {
2346 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2347 return ERROR_FAIL;
2348 }
2349 int field_size = tap->ir_length;
2350 fields[i].tap = tap;
2351 fields[i].num_bits = field_size;
2352 fields[i].out_value = malloc(CEIL(field_size, 8));
2353 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2354 fields[i].in_value = NULL;
2355 }
2356
2357 /* did we have an endstate? */
2358 jtag_add_ir_scan(num_fields, fields, endstate);
2359
2360 int retval=jtag_execute_queue();
2361
2362 for (i = 0; i < num_fields; i++)
2363 free(fields[i].out_value);
2364
2365 free (fields);
2366
2367 return retval;
2368 }
2369
2370 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2371 {
2372 int retval;
2373 scan_field_t *fields;
2374 int num_fields;
2375 int field_count = 0;
2376 int i, e;
2377 jtag_tap_t *tap;
2378 tap_state_t endstate;
2379
2380 /* args[1] = device
2381 * args[2] = num_bits
2382 * args[3] = hex string
2383 * ... repeat num bits and hex string ...
2384 *
2385 * .. optionally:
2386 * args[N-2] = "-endstate"
2387 * args[N-1] = statename
2388 */
2389 if ((argc < 4) || ((argc % 2)!=0))
2390 {
2391 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2392 return JIM_ERR;
2393 }
2394
2395 endstate = TAP_IDLE;
2396
2397 /* validate arguments as numbers */
2398 e = JIM_OK;
2399 for (i = 2; i < argc; i+=2)
2400 {
2401 long bits;
2402 const char *cp;
2403
2404 e = Jim_GetLong(interp, args[i], &bits);
2405 /* If valid - try next arg */
2406 if( e == JIM_OK ){
2407 continue;
2408 }
2409
2410 /* Not valid.. are we at the end? */
2411 if ( ((i+2) != argc) ){
2412 /* nope, then error */
2413 return e;
2414 }
2415
2416 /* it could be: "-endstate FOO"
2417 * e.g. DRPAUSE so we can issue more instructions
2418 * before entering RUN/IDLE and executing them.
2419 */
2420
2421 /* get arg as a string. */
2422 cp = Jim_GetString( args[i], NULL );
2423 /* is it the magic? */
2424 if( 0 == strcmp( "-endstate", cp ) ){
2425 /* is the statename valid? */
2426 cp = Jim_GetString( args[i+1], NULL );
2427
2428 /* see if it is a valid state name */
2429 endstate = tap_state_by_name(cp);
2430 if( endstate < 0 ){
2431 /* update the error message */
2432 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
2433 } else {
2434 if (!scan_is_safe(endstate))
2435 LOG_WARNING("drscan with unsafe "
2436 "endstate \"%s\"", cp);
2437
2438 /* valid - so clear the error */
2439 e = JIM_OK;
2440 /* and remove the last 2 args */
2441 argc -= 2;
2442 }
2443 }
2444
2445 /* Still an error? */
2446 if( e != JIM_OK ){
2447 return e; /* too bad */
2448 }
2449 } /* validate args */
2450
2451 tap = jtag_tap_by_jim_obj( interp, args[1] );
2452 if( tap == NULL ){
2453 return JIM_ERR;
2454 }
2455
2456 num_fields=(argc-2)/2;
2457 fields = malloc(sizeof(scan_field_t) * num_fields);
2458 for (i = 2; i < argc; i+=2)
2459 {
2460 long bits;
2461 int len;
2462 const char *str;
2463
2464 Jim_GetLong(interp, args[i], &bits);
2465 str = Jim_GetString(args[i+1], &len);
2466
2467 fields[field_count].tap = tap;
2468 fields[field_count].num_bits = bits;
2469 fields[field_count].out_value = malloc(CEIL(bits, 8));
2470 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2471 fields[field_count].in_value = fields[field_count].out_value;
2472 field_count++;
2473 }
2474
2475 jtag_add_dr_scan(num_fields, fields, endstate);
2476
2477 retval = jtag_execute_queue();
2478 if (retval != ERROR_OK)
2479 {
2480 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2481 return JIM_ERR;
2482 }
2483
2484 field_count=0;
2485 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2486 for (i = 2; i < argc; i+=2)
2487 {
2488 long bits;
2489 char *str;
2490
2491 Jim_GetLong(interp, args[i], &bits);
2492 str = buf_to_str(fields[field_count].in_value, bits, 16);
2493 free(fields[field_count].out_value);
2494
2495 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2496 free(str);
2497 field_count++;
2498 }
2499
2500 Jim_SetResult(interp, list);
2501
2502 free(fields);
2503
2504 return JIM_OK;
2505 }
2506
2507
2508 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2509 {
2510 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
2511
2512 return JIM_OK;
2513 }
2514
2515
2516 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2517 {
2518 if (argc == 1)
2519 {
2520 if (strcmp(args[0], "enable") == 0)
2521 {
2522 jtag_verify_capture_ir = 1;
2523 }
2524 else if (strcmp(args[0], "disable") == 0)
2525 {
2526 jtag_verify_capture_ir = 0;
2527 } else
2528 {
2529 return ERROR_COMMAND_SYNTAX_ERROR;
2530 }
2531 } else if (argc != 0)
2532 {
2533 return ERROR_COMMAND_SYNTAX_ERROR;
2534 }
2535
2536 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2537
2538 return ERROR_OK;
2539 }
2540
2541 void jtag_set_verify(bool enable)
2542 {
2543 jtag_verify = enable;
2544 }
2545
2546 bool jtag_will_verify()
2547 {
2548 return jtag_verify;
2549 }
2550
2551 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2552 {
2553 if (argc > 1)
2554 return ERROR_COMMAND_SYNTAX_ERROR;
2555
2556 if (argc == 1)
2557 {
2558 if (strcmp(args[0], "enable") == 0)
2559 jtag_set_verify(true);
2560 else if (strcmp(args[0], "disable") == 0)
2561 jtag_set_verify(false);
2562 else
2563 return ERROR_COMMAND_SYNTAX_ERROR;
2564 }
2565
2566 const char *status = jtag_will_verify() ? "enabled": "disabled";
2567 command_print(cmd_ctx, "verify jtag capture is %s", status);
2568
2569 return ERROR_OK;
2570 }
2571
2572
2573 int jtag_power_dropout(int *dropout)
2574 {
2575 return jtag->power_dropout(dropout);
2576 }
2577
2578 int jtag_srst_asserted(int *srst_asserted)
2579 {
2580 return jtag->srst_asserted(srst_asserted);
2581 }
2582
2583 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2584 {
2585 jtag_tap_event_action_t * jteap;
2586 int done;
2587
2588 jteap = tap->event_action;
2589
2590 done = 0;
2591 while (jteap) {
2592 if (jteap->event == e) {
2593 done = 1;
2594 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2595 tap->dotted_name,
2596 e,
2597 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2598 Jim_GetString(jteap->body, NULL) );
2599 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2600 Jim_PrintErrorMessage(interp);
2601 }
2602 }
2603
2604 jteap = jteap->next;
2605 }
2606
2607 if (!done) {
2608 LOG_DEBUG( "event %d %s - no action",
2609 e,
2610 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2611 }
2612 }
2613
2614 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2615 {
2616 if (argc > 1)
2617 return ERROR_COMMAND_SYNTAX_ERROR;
2618
2619 if (argc == 1)
2620 {
2621 bool use_new_table;
2622 if (strcmp(args[0], "short") == 0)
2623 use_new_table = true;
2624 else if (strcmp(args[0], "long") == 0)
2625 use_new_table = false;
2626 else
2627 return ERROR_COMMAND_SYNTAX_ERROR;
2628
2629 tap_use_new_tms_table(use_new_table);
2630 }
2631
2632 command_print(cmd_ctx, "tms sequence is %s",
2633 tap_uses_new_tms_table() ? "short": "long");
2634
2635 return ERROR_OK;
2636 }
2637
2638 /**
2639 * Function jtag_add_statemove
2640 * moves from the current state to the goal \a state. This needs
2641 * to be handled according to the xsvf spec, see the XSTATE command
2642 * description.
2643 */
2644 int jtag_add_statemove(tap_state_t goal_state)
2645 {
2646 int retval = ERROR_OK;
2647
2648 tap_state_t moves[8];
2649 tap_state_t cur_state = cmd_queue_cur_state;
2650 int i;
2651 int tms_bits;
2652 int tms_count;
2653
2654 LOG_DEBUG( "cur_state=%s goal_state=%s",
2655 tap_state_name(cur_state),
2656 tap_state_name(goal_state) );
2657
2658
2659 /* From the XSVF spec, pertaining to XSTATE:
2660
2661 For special states known as stable states (Test-Logic-Reset,
2662 Run-Test/Idle, Pause-DR, Pause- IR), an XSVF interpreter follows
2663 predefined TAP state paths when the starting state is a stable state and
2664 when the XSTATE specifies a new stable state (see the STATE command in
2665 the [Ref 5] for the TAP state paths between stable states). For
2666 non-stable states, XSTATE should specify a state that is only one TAP
2667 state transition distance from the current TAP state to avoid undefined
2668 TAP state paths. A sequence of multiple XSTATE commands can be issued to
2669 transition the TAP through a specific state path.
2670 */
2671
2672 if (goal_state==cur_state )
2673 ; /* nothing to do */
2674
2675 else if( goal_state==TAP_RESET )
2676 {
2677 jtag_add_tlr();
2678 }
2679
2680 else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) )
2681 {
2682 /* note: unless tms_bits holds a path that agrees with [Ref 5] in above
2683 spec, then this code is not fully conformant to the xsvf spec. This
2684 puts a burden on tap_get_tms_path() function from the xsvf spec.
2685 If in doubt, you should confirm that that burden is being met.
2686 */
2687
2688 tms_bits = tap_get_tms_path(cur_state, goal_state);
2689 tms_count = tap_get_tms_path_len(cur_state, goal_state);
2690
2691 assert( (unsigned) tms_count < DIM(moves) );
2692
2693 for (i=0; i<tms_count; i++, tms_bits>>=1)
2694 {
2695 bool bit = tms_bits & 1;
2696
2697 cur_state = tap_state_transition(cur_state, bit);
2698 moves[i] = cur_state;
2699 }
2700
2701 jtag_add_pathmove(tms_count, moves);
2702 }
2703
2704 /* else state must be immediately reachable in one clock cycle, and does not
2705 need to be a stable state.
2706 */
2707 else if( tap_state_transition(cur_state, true) == goal_state
2708 || tap_state_transition(cur_state, false) == goal_state )
2709 {
2710 /* move a single state */
2711 moves[0] = goal_state;
2712 jtag_add_pathmove( 1, moves );
2713 }
2714
2715 else
2716 {
2717 retval = ERROR_FAIL;
2718 }
2719
2720 return retval;
2721 }
2722
2723 void jtag_set_nsrst_delay(unsigned delay)
2724 {
2725 jtag_nsrst_delay = delay;
2726 }
2727 void jtag_set_ntrst_delay(unsigned delay)
2728 {
2729 jtag_ntrst_delay = delay;
2730 }
2731
2732
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)
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)