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Factoring of jtag_examine_chain for maintainability:
[openocd.git] / src / jtag / jtag.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2009 SoftPLC Corporation *
9 * http://softplc.com *
10 * dick@softplc.com *
11 * *
12 * This program is free software; you can redistribute it and/or modify *
13 * it under the terms of the GNU General Public License as published by *
14 * the Free Software Foundation; either version 2 of the License, or *
15 * (at your option) any later version. *
16 * *
17 * This program is distributed in the hope that it will be useful, *
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
20 * GNU General Public License for more details. *
21 * *
22 * You should have received a copy of the GNU General Public License *
23 * along with this program; if not, write to the *
24 * Free Software Foundation, Inc., *
25 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
26 ***************************************************************************/
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include "jtag.h"
32 #include "minidriver.h"
33 #include "interface.h"
34
35 #ifdef HAVE_STRINGS_H
36 #include <strings.h>
37 #endif
38
39
40 /// The number of JTAG queue flushes (for profiling and debugging purposes).
41 static int jtag_flush_queue_count;
42
43 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
44 int in_num_fields, scan_field_t *in_fields, tap_state_t state);
45
46 /* note that this is not marked as static as it must be available from outside jtag.c for those
47 that implement the jtag_xxx() minidriver layer
48 */
49 int jtag_error=ERROR_OK;
50
51 char* jtag_event_strings[] =
52 {
53 "JTAG controller reset (RESET or TRST)"
54 };
55
56 const Jim_Nvp nvp_jtag_tap_event[] = {
57 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
58 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
59
60 { .name = NULL, .value = -1 }
61 };
62
63 int jtag_trst = 0;
64 int jtag_srst = 0;
65
66 /**
67 * List all TAPs that have been created.
68 */
69 static jtag_tap_t *__jtag_all_taps = NULL;
70 /**
71 * The number of TAPs in the __jtag_all_taps list, used to track the
72 * assigned chain position to new TAPs
73 */
74 static int jtag_num_taps = 0;
75
76 enum reset_types jtag_reset_config = RESET_NONE;
77 tap_state_t cmd_queue_end_state = TAP_RESET;
78 tap_state_t cmd_queue_cur_state = TAP_RESET;
79
80 int jtag_verify_capture_ir = 1;
81 int jtag_verify = 1;
82
83 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
84 static int jtag_nsrst_delay = 0; /* default to no nSRST delay */
85 static int jtag_ntrst_delay = 0; /* default to no nTRST delay */
86
87 /* callbacks to inform high-level handlers about JTAG state changes */
88 jtag_event_callback_t *jtag_event_callbacks;
89
90 /* speed in kHz*/
91 static int speed_khz = 0;
92 /* flag if the kHz speed was defined */
93 static bool hasKHz = false;
94
95 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
96 */
97
98 #if BUILD_ECOSBOARD == 1
99 extern jtag_interface_t zy1000_interface;
100 #endif
101
102 #if BUILD_PARPORT == 1
103 extern jtag_interface_t parport_interface;
104 #endif
105
106 #if BUILD_DUMMY == 1
107 extern jtag_interface_t dummy_interface;
108 #endif
109
110 #if BUILD_FT2232_FTD2XX == 1
111 extern jtag_interface_t ft2232_interface;
112 #endif
113
114 #if BUILD_FT2232_LIBFTDI == 1
115 extern jtag_interface_t ft2232_interface;
116 #endif
117
118 #if BUILD_AMTJTAGACCEL == 1
119 extern jtag_interface_t amt_jtagaccel_interface;
120 #endif
121
122 #if BUILD_EP93XX == 1
123 extern jtag_interface_t ep93xx_interface;
124 #endif
125
126 #if BUILD_AT91RM9200 == 1
127 extern jtag_interface_t at91rm9200_interface;
128 #endif
129
130 #if BUILD_GW16012 == 1
131 extern jtag_interface_t gw16012_interface;
132 #endif
133
134 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
135 extern jtag_interface_t presto_interface;
136 #endif
137
138 #if BUILD_USBPROG == 1
139 extern jtag_interface_t usbprog_interface;
140 #endif
141
142 #if BUILD_JLINK == 1
143 extern jtag_interface_t jlink_interface;
144 #endif
145
146 #if BUILD_VSLLINK == 1
147 extern jtag_interface_t vsllink_interface;
148 #endif
149
150 #if BUILD_RLINK == 1
151 extern jtag_interface_t rlink_interface;
152 #endif
153
154 #if BUILD_ARMJTAGEW == 1
155 extern jtag_interface_t armjtagew_interface;
156 #endif
157
158 jtag_interface_t *jtag_interfaces[] = {
159 #if BUILD_ECOSBOARD == 1
160 &zy1000_interface,
161 #endif
162 #if BUILD_PARPORT == 1
163 &parport_interface,
164 #endif
165 #if BUILD_DUMMY == 1
166 &dummy_interface,
167 #endif
168 #if BUILD_FT2232_FTD2XX == 1
169 &ft2232_interface,
170 #endif
171 #if BUILD_FT2232_LIBFTDI == 1
172 &ft2232_interface,
173 #endif
174 #if BUILD_AMTJTAGACCEL == 1
175 &amt_jtagaccel_interface,
176 #endif
177 #if BUILD_EP93XX == 1
178 &ep93xx_interface,
179 #endif
180 #if BUILD_AT91RM9200 == 1
181 &at91rm9200_interface,
182 #endif
183 #if BUILD_GW16012 == 1
184 &gw16012_interface,
185 #endif
186 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
187 &presto_interface,
188 #endif
189 #if BUILD_USBPROG == 1
190 &usbprog_interface,
191 #endif
192 #if BUILD_JLINK == 1
193 &jlink_interface,
194 #endif
195 #if BUILD_VSLLINK == 1
196 &vsllink_interface,
197 #endif
198 #if BUILD_RLINK == 1
199 &rlink_interface,
200 #endif
201 #if BUILD_ARMJTAGEW == 1
202 &armjtagew_interface,
203 #endif
204 NULL,
205 };
206
207 struct jtag_interface_s *jtag = NULL;
208
209 /* configuration */
210 static jtag_interface_t *jtag_interface = NULL;
211 int jtag_speed = 0;
212
213 /* jtag commands */
214 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
215 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
216 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
217 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
218 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
219 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
220 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
221
222 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
223
224 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
225 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
226 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
227 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
228 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
229 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args);
230
231 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
232 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
233 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
234
235 jtag_tap_t *jtag_all_taps(void)
236 {
237 return __jtag_all_taps;
238 };
239
240 int jtag_tap_count(void)
241 {
242 return jtag_num_taps;
243 }
244
245 int jtag_tap_count_enabled(void)
246 {
247 jtag_tap_t *t;
248 int n;
249
250 n = 0;
251 t = jtag_all_taps();
252 while(t){
253 if( t->enabled ){
254 n++;
255 }
256 t = t->next_tap;
257 }
258 return n;
259 }
260
261 /// Append a new TAP to the chain of all taps.
262 static void jtag_tap_add(struct jtag_tap_s *t)
263 {
264 t->abs_chain_position = jtag_num_taps++;
265
266 jtag_tap_t **tap = &__jtag_all_taps;
267 while(*tap != NULL)
268 tap = &(*tap)->next_tap;
269 *tap = t;
270 }
271
272 jtag_tap_t *jtag_tap_by_string( const char *s )
273 {
274 jtag_tap_t *t;
275 char *cp;
276
277 t = jtag_all_taps();
278 /* try name first */
279 while(t){
280 if( 0 == strcmp( t->dotted_name, s ) ){
281 break;
282 } else {
283 t = t->next_tap;
284 }
285 }
286 /* backup plan is by number */
287 if( t == NULL ){
288 /* ok - is "s" a number? */
289 int n;
290 n = strtol( s, &cp, 0 );
291 if( (s != cp) && (*cp == 0) ){
292 /* Then it is... */
293 t = jtag_tap_by_abs_position(n);
294 }
295 }
296 return t;
297 }
298
299 jtag_tap_t * jtag_tap_by_jim_obj( Jim_Interp *interp, Jim_Obj *o )
300 {
301 jtag_tap_t *t;
302 const char *cp;
303
304 cp = Jim_GetString( o, NULL );
305 if(cp == NULL){
306 cp = "(unknown)";
307 t = NULL;
308 } else {
309 t = jtag_tap_by_string( cp );
310 }
311 if( t == NULL ){
312 Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
313 }
314 return t;
315 }
316
317 /* returns a pointer to the n-th device in the scan chain */
318 jtag_tap_t * jtag_tap_by_abs_position( int n )
319 {
320 int orig_n;
321 jtag_tap_t *t;
322
323 orig_n = n;
324 t = jtag_all_taps();
325
326 while( t && (n > 0)) {
327 n--;
328 t = t->next_tap;
329 }
330 return t;
331 }
332
333 const char *jtag_tap_name(const jtag_tap_t *tap)
334 {
335 return (tap == NULL) ? "(unknown)" : tap->dotted_name;
336 }
337
338
339 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
340 {
341 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
342
343 if (callback == NULL)
344 {
345 return ERROR_INVALID_ARGUMENTS;
346 }
347
348 if (*callbacks_p)
349 {
350 while ((*callbacks_p)->next)
351 callbacks_p = &((*callbacks_p)->next);
352 callbacks_p = &((*callbacks_p)->next);
353 }
354
355 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
356 (*callbacks_p)->callback = callback;
357 (*callbacks_p)->priv = priv;
358 (*callbacks_p)->next = NULL;
359
360 return ERROR_OK;
361 }
362
363 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
364 {
365 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
366
367 if (callback == NULL)
368 {
369 return ERROR_INVALID_ARGUMENTS;
370 }
371
372 while (*callbacks_p)
373 {
374 jtag_event_callback_t **next = &((*callbacks_p)->next);
375 if ((*callbacks_p)->callback == callback)
376 {
377 free(*callbacks_p);
378 *callbacks_p = *next;
379 }
380 callbacks_p = next;
381 }
382
383 return ERROR_OK;
384 }
385
386 int jtag_call_event_callbacks(enum jtag_event event)
387 {
388 jtag_event_callback_t *callback = jtag_event_callbacks;
389
390 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
391
392 while (callback)
393 {
394 callback->callback(event, callback->priv);
395 callback = callback->next;
396 }
397
398 return ERROR_OK;
399 }
400
401 static void jtag_checks(void)
402 {
403 assert(jtag_trst == 0);
404 }
405
406 static void jtag_prelude(tap_state_t state)
407 {
408 jtag_checks();
409
410 assert(state!=TAP_INVALID);
411
412 cmd_queue_cur_state = state;
413 }
414
415 void jtag_alloc_in_value32(scan_field_t *field)
416 {
417 interface_jtag_alloc_in_value32(field);
418 }
419
420 void jtag_add_ir_scan_noverify(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
421 {
422 int retval;
423 jtag_prelude(state);
424
425 retval=interface_jtag_add_ir_scan(in_num_fields, in_fields, state);
426 if (retval!=ERROR_OK)
427 jtag_error=retval;
428
429 }
430
431
432 /**
433 * Generate an IR SCAN with a list of scan fields with one entry for each enabled TAP.
434 *
435 * If the input field list contains an instruction value for a TAP then that is used
436 * otherwise the TAP is set to bypass.
437 *
438 * TAPs for which no fields are passed are marked as bypassed for subsequent DR SCANs.
439 *
440 */
441 void jtag_add_ir_scan(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
442 {
443 if (jtag_verify&&jtag_verify_capture_ir)
444 {
445 /* 8 x 32 bit id's is enough for all invocations */
446
447 for (int j = 0; j < in_num_fields; j++)
448 {
449 /* if we are to run a verification of the ir scan, we need to get the input back.
450 * We may have to allocate space if the caller didn't ask for the input back.
451 */
452 in_fields[j].check_value=in_fields[j].tap->expected;
453 in_fields[j].check_mask=in_fields[j].tap->expected_mask;
454 }
455 jtag_add_scan_check(jtag_add_ir_scan_noverify, in_num_fields, in_fields, state);
456 } else
457 {
458 jtag_add_ir_scan_noverify(in_num_fields, in_fields, state);
459 }
460 }
461
462 /**
463 * Duplicate the scan fields passed into the function into an IR SCAN command
464 *
465 * This function assumes that the caller handles extra fields for bypassed TAPs
466 *
467 */
468 void jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
469 {
470 int retval;
471
472 jtag_prelude(state);
473
474 retval=interface_jtag_add_plain_ir_scan(in_num_fields, in_fields, state);
475 if (retval!=ERROR_OK)
476 jtag_error=retval;
477 }
478
479 void jtag_add_callback(jtag_callback1_t f, u8 *in)
480 {
481 interface_jtag_add_callback(f, in);
482 }
483
484 void jtag_add_callback4(jtag_callback_t f, u8 *in,
485 jtag_callback_data_t data1, jtag_callback_data_t data2,
486 jtag_callback_data_t data3)
487 {
488 interface_jtag_add_callback4(f, in, data1, data2, data3);
489 }
490
491 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits);
492
493 static int jtag_check_value_mask_callback(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
494 {
495 return jtag_check_value_inner(in, (u8 *)data1, (u8 *)data2, (int)data3);
496 }
497
498 static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state),
499 int in_num_fields, scan_field_t *in_fields, tap_state_t state)
500 {
501 for (int i = 0; i < in_num_fields; i++)
502 {
503 struct scan_field_s *field = &in_fields[i];
504 field->allocated = 0;
505 field->modified = 0;
506 if (field->check_value || field->in_value)
507 continue;
508 interface_jtag_add_scan_check_alloc(field);
509 field->modified = 1;
510 }
511
512 jtag_add_scan(in_num_fields, in_fields, state);
513
514 for (int i = 0; i < in_num_fields; i++)
515 {
516 if ((in_fields[i].check_value != NULL) && (in_fields[i].in_value != NULL))
517 {
518 /* this is synchronous for a minidriver */
519 jtag_add_callback4(jtag_check_value_mask_callback, in_fields[i].in_value,
520 (jtag_callback_data_t)in_fields[i].check_value,
521 (jtag_callback_data_t)in_fields[i].check_mask,
522 (jtag_callback_data_t)in_fields[i].num_bits);
523 }
524 if (in_fields[i].allocated)
525 {
526 free(in_fields[i].in_value);
527 }
528 if (in_fields[i].modified)
529 {
530 in_fields[i].in_value = NULL;
531 }
532 }
533 }
534
535 void jtag_add_dr_scan_check(int in_num_fields, scan_field_t *in_fields, tap_state_t state)
536 {
537 if (jtag_verify)
538 {
539 jtag_add_scan_check(jtag_add_dr_scan, in_num_fields, in_fields, state);
540 } else
541 {
542 jtag_add_dr_scan(in_num_fields, in_fields, state);
543 }
544 }
545
546
547 /**
548 * Generate a DR SCAN using the fields passed to the function
549 *
550 * For not bypassed TAPs the function checks in_fields and uses fields specified there.
551 * For bypassed TAPs the function generates a dummy 1bit field.
552 *
553 * The bypass status of TAPs is set by jtag_add_ir_scan().
554 *
555 */
556 void jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
557 {
558 int retval;
559
560 jtag_prelude(state);
561
562 retval=interface_jtag_add_dr_scan(in_num_fields, in_fields, state);
563 if (retval!=ERROR_OK)
564 jtag_error=retval;
565 }
566
567
568
569 /**
570 * Duplicate the scan fields passed into the function into a DR SCAN command
571 *
572 * This function assumes that the caller handles extra fields for bypassed TAPs
573 *
574 */
575 void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
576 {
577 int retval;
578
579 jtag_prelude(state);
580
581 retval=interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, state);
582 if (retval!=ERROR_OK)
583 jtag_error=retval;
584 }
585
586 void jtag_add_dr_out(jtag_tap_t* tap,
587 int num_fields, const int* num_bits, const u32* value,
588 tap_state_t end_state)
589 {
590 assert(end_state != TAP_INVALID);
591
592 cmd_queue_cur_state = end_state;
593
594 interface_jtag_add_dr_out(tap,
595 num_fields, num_bits, value,
596 end_state);
597 }
598
599 void jtag_add_tlr(void)
600 {
601 jtag_prelude(TAP_RESET);
602
603 int retval;
604 retval=interface_jtag_add_tlr();
605 if (retval!=ERROR_OK)
606 jtag_error=retval;
607
608 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
609 }
610
611 void jtag_add_pathmove(int num_states, const tap_state_t *path)
612 {
613 tap_state_t cur_state = cmd_queue_cur_state;
614 int i;
615 int retval;
616
617 /* the last state has to be a stable state */
618 if (!tap_is_state_stable(path[num_states - 1]))
619 {
620 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
621 exit(-1);
622 }
623
624 for (i=0; i<num_states; i++)
625 {
626 if (path[i] == TAP_RESET)
627 {
628 LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
629 exit(-1);
630 }
631
632 if ( tap_state_transition(cur_state, true) != path[i]
633 && tap_state_transition(cur_state, false) != path[i])
634 {
635 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[i]));
636 exit(-1);
637 }
638 cur_state = path[i];
639 }
640
641 jtag_checks();
642
643 retval = interface_jtag_add_pathmove(num_states, path);
644 cmd_queue_cur_state = path[num_states - 1];
645 if (retval!=ERROR_OK)
646 jtag_error=retval;
647 }
648
649 void jtag_add_runtest(int num_cycles, tap_state_t state)
650 {
651 int retval;
652
653 jtag_prelude(state);
654
655 /* executed by sw or hw fifo */
656 retval=interface_jtag_add_runtest(num_cycles, state);
657 if (retval!=ERROR_OK)
658 jtag_error=retval;
659 }
660
661
662 void jtag_add_clocks( int num_cycles )
663 {
664 int retval;
665
666 if( !tap_is_state_stable(cmd_queue_cur_state) )
667 {
668 LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
669 tap_state_name(cmd_queue_cur_state) );
670 jtag_error = ERROR_JTAG_NOT_STABLE_STATE;
671 return;
672 }
673
674 if( num_cycles > 0 )
675 {
676 jtag_checks();
677
678 retval = interface_jtag_add_clocks(num_cycles);
679 if (retval != ERROR_OK)
680 jtag_error=retval;
681 }
682 }
683
684 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
685 {
686 int trst_with_tlr = 0;
687 int retval;
688
689 /* FIX!!! there are *many* different cases here. A better
690 * approach is needed for legal combinations of transitions...
691 */
692 if ((jtag_reset_config & RESET_HAS_SRST)&&
693 (jtag_reset_config & RESET_HAS_TRST)&&
694 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
695 {
696 if (((req_tlr_or_trst&&!jtag_trst)||
697 (!req_tlr_or_trst&&jtag_trst))&&
698 ((req_srst&&!jtag_srst)||
699 (!req_srst&&jtag_srst)))
700 {
701 /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
702 //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
703 }
704 }
705
706 /* Make sure that jtag_reset_config allows the requested reset */
707 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
708 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
709 {
710 LOG_ERROR("BUG: requested reset would assert trst");
711 jtag_error=ERROR_FAIL;
712 return;
713 }
714
715 /* if TRST pulls SRST, we reset with TAP T-L-R */
716 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
717 {
718 trst_with_tlr = 1;
719 }
720
721 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
722 {
723 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
724 jtag_error=ERROR_FAIL;
725 return;
726 }
727
728 if (req_tlr_or_trst)
729 {
730 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
731 {
732 jtag_trst = 1;
733 } else
734 {
735 trst_with_tlr = 1;
736 }
737 } else
738 {
739 jtag_trst = 0;
740 }
741
742 jtag_srst = req_srst;
743
744 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
745 if (retval!=ERROR_OK)
746 {
747 jtag_error=retval;
748 return;
749 }
750 jtag_execute_queue();
751
752 if (jtag_srst)
753 {
754 LOG_DEBUG("SRST line asserted");
755 }
756 else
757 {
758 LOG_DEBUG("SRST line released");
759 if (jtag_nsrst_delay)
760 jtag_add_sleep(jtag_nsrst_delay * 1000);
761 }
762
763 if (trst_with_tlr)
764 {
765 LOG_DEBUG("JTAG reset with RESET instead of TRST");
766 jtag_set_end_state(TAP_RESET);
767 jtag_add_tlr();
768 return;
769 }
770
771 if (jtag_trst)
772 {
773 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
774 * and inform possible listeners about this
775 */
776 LOG_DEBUG("TRST line asserted");
777 tap_set_state(TAP_RESET);
778 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
779 }
780 else
781 {
782 if (jtag_ntrst_delay)
783 jtag_add_sleep(jtag_ntrst_delay * 1000);
784 }
785 }
786
787 tap_state_t jtag_set_end_state(tap_state_t state)
788 {
789 if ((state == TAP_DRSHIFT)||(state == TAP_IRSHIFT))
790 {
791 LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field");
792 }
793
794 if (state!=TAP_INVALID)
795 cmd_queue_end_state = state;
796 return cmd_queue_end_state;
797 }
798
799 tap_state_t jtag_get_end_state(void)
800 {
801 return cmd_queue_end_state;
802 }
803
804 void jtag_add_sleep(u32 us)
805 {
806 keep_alive(); /* we might be running on a very slow JTAG clk */
807 int retval=interface_jtag_add_sleep(us);
808 if (retval!=ERROR_OK)
809 jtag_error=retval;
810 return;
811 }
812
813 int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits)
814 {
815 int retval = ERROR_OK;
816
817 int compare_failed = 0;
818
819 if (in_check_mask)
820 compare_failed = buf_cmp_mask(captured, in_check_value, in_check_mask, num_bits);
821 else
822 compare_failed = buf_cmp(captured, in_check_value, num_bits);
823
824 if (compare_failed){
825 /* An error handler could have caught the failing check
826 * only report a problem when there wasn't a handler, or if the handler
827 * acknowledged the error
828 */
829 /*
830 LOG_WARNING("TAP %s:",
831 jtag_tap_name(field->tap));
832 */
833 if (compare_failed)
834 {
835 char *captured_char = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
836 char *in_check_value_char = buf_to_str(in_check_value, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
837
838 if (in_check_mask)
839 {
840 char *in_check_mask_char;
841 in_check_mask_char = buf_to_str(in_check_mask, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
842 LOG_WARNING("value captured during scan didn't pass the requested check:");
843 LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
844 captured_char, in_check_value_char, in_check_mask_char);
845 free(in_check_mask_char);
846 }
847 else
848 {
849 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
850 }
851
852 free(captured_char);
853 free(in_check_value_char);
854
855 retval = ERROR_JTAG_QUEUE_FAILED;
856 }
857
858 }
859 return retval;
860 }
861
862 void jtag_check_value_mask(scan_field_t *field, u8 *value, u8 *mask)
863 {
864 assert(field->in_value != NULL);
865
866 if (value==NULL)
867 {
868 /* no checking to do */
869 return;
870 }
871
872 jtag_execute_queue_noclear();
873
874 int retval=jtag_check_value_inner(field->in_value, value, mask, field->num_bits);
875 jtag_set_error(retval);
876 }
877
878
879
880 int default_interface_jtag_execute_queue(void)
881 {
882 if (NULL == jtag)
883 {
884 LOG_ERROR("No JTAG interface configured yet. "
885 "Issue 'init' command in startup scripts "
886 "before communicating with targets.");
887 return ERROR_FAIL;
888 }
889
890 return jtag->execute_queue();
891 }
892
893 void jtag_execute_queue_noclear(void)
894 {
895 /* each flush can take as much as 1-2ms on high bandwidth low latency interfaces.
896 * E.g. a JTAG over TCP/IP or USB....
897 */
898 jtag_flush_queue_count++;
899
900 int retval=interface_jtag_execute_queue();
901 /* we keep the first error */
902 if ((jtag_error==ERROR_OK)&&(retval!=ERROR_OK))
903 {
904 jtag_error=retval;
905 }
906 }
907
908 int jtag_get_flush_queue_count(void)
909 {
910 return jtag_flush_queue_count;
911 }
912
913 int jtag_execute_queue(void)
914 {
915 int retval;
916 jtag_execute_queue_noclear();
917 retval=jtag_error;
918 jtag_error=ERROR_OK;
919 return retval;
920 }
921
922 static int jtag_reset_callback(enum jtag_event event, void *priv)
923 {
924 jtag_tap_t *tap = priv;
925
926 LOG_DEBUG("-");
927
928 if (event == JTAG_TRST_ASSERTED)
929 {
930 buf_set_ones(tap->cur_instr, tap->ir_length);
931 tap->bypass = 1;
932 }
933
934 return ERROR_OK;
935 }
936
937 void jtag_sleep(u32 us)
938 {
939 alive_sleep(us/1000);
940 }
941
942 /// maximum number of JTAG devices expected in the chain
943 #define JTAG_MAX_CHAIN_SIZE 20
944
945 #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
946 #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
947 #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
948
949 static int jtag_examine_chain_execute(u8 *idcode_buffer, unsigned num_idcode)
950 {
951 scan_field_t field = {
952 .tap = NULL,
953 .num_bits = num_idcode * 32,
954 .out_value = idcode_buffer,
955 .in_value = idcode_buffer,
956 };
957
958 // initialize to the end of chain ID value
959 for (unsigned i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
960 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
961
962 jtag_add_plain_dr_scan(1, &field, TAP_RESET);
963 return jtag_execute_queue();
964 }
965
966 static bool jtag_examine_chain_check(u8 *idcodes, unsigned count)
967 {
968 u8 zero_check = 0x0;
969 u8 one_check = 0xff;
970
971 for (unsigned i = 0; i < count * 4; i++)
972 {
973 zero_check |= idcodes[i];
974 one_check &= idcodes[i];
975 }
976
977 /* if there wasn't a single non-zero bit or if all bits were one,
978 * the scan is not valid */
979 if (zero_check == 0x00 || one_check == 0xff)
980 {
981 LOG_ERROR("JTAG communication failure: check connection, "
982 "JTAG interface, target power etc.");
983 return false;
984 }
985 return true;
986 }
987
988 /* Try to examine chain layout according to IEEE 1149.1 §12
989 */
990 static int jtag_examine_chain(void)
991 {
992 jtag_tap_t *tap;
993 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
994 int bit_count;
995 int device_count = 0;
996
997 jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE);
998
999 if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE))
1000 return ERROR_JTAG_INIT_FAILED;
1001
1002 /* point at the 1st tap */
1003 tap = jtag_tap_next_enabled(NULL);
1004 if( tap == NULL ){
1005 LOG_ERROR("JTAG: No taps enabled?");
1006 return ERROR_JTAG_INIT_FAILED;
1007 }
1008
1009 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1010 {
1011 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1012 if ((idcode & 1) == 0)
1013 {
1014 /* LSB must not be 0, this indicates a device in bypass */
1015 LOG_WARNING("Tap/Device does not have IDCODE");
1016 idcode=0;
1017
1018 bit_count += 1;
1019 }
1020 else
1021 {
1022 u32 manufacturer;
1023 u32 part;
1024 u32 version;
1025
1026 /* some devices, such as AVR will output all 1's instead of TDI
1027 input value at end of chain. */
1028 if ((idcode == 0x000000FF)||(idcode == 0xFFFFFFFF))
1029 {
1030 int unexpected=0;
1031 /* End of chain (invalid manufacturer ID)
1032 *
1033 * The JTAG examine is the very first thing that happens
1034 *
1035 * A single JTAG device requires only 64 bits to be read back correctly.
1036 *
1037 * The code below adds a check that the rest of the data scanned (640 bits)
1038 * are all as expected. This helps diagnose/catch problems with the JTAG chain
1039 *
1040 * earlier and gives more helpful/explicit error messages.
1041 */
1042 for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
1043 {
1044 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1045 if (unexpected||((idcode != 0x000000FF)&&(idcode != 0xFFFFFFFF)))
1046 {
1047 LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode);
1048 unexpected = 1;
1049 }
1050 }
1051
1052 break;
1053 }
1054
1055 manufacturer = EXTRACT_MFG(idcode);
1056 part = EXTRACT_PART(idcode);
1057 version = EXTRACT_VER(idcode);
1058
1059 LOG_INFO("JTAG tap: %s tap/device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1060 ((tap != NULL) ? (tap->dotted_name) : "(not-named)"),
1061 idcode, manufacturer, part, version);
1062
1063 bit_count += 32;
1064 }
1065 device_count++;
1066 if (!tap)
1067 continue;
1068
1069 tap->idcode = idcode;
1070
1071 if (0 == tap->expected_ids_cnt)
1072 {
1073 // @todo Enable LOG_INFO to ask for reports about unknown TAP IDs.
1074 #if 0
1075 LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode)
1076 LOG_INFO("Please report the chip name and reported ID code to the openocd project");
1077 #endif
1078 tap = jtag_tap_next_enabled(tap);
1079 continue;
1080 }
1081 /* Loop over the expected identification codes and test for a match */
1082 u8 ii;
1083 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1084 if (tap->idcode == tap->expected_ids[ii]) {
1085 break;
1086 }
1087 }
1088
1089 /* If none of the expected ids matched, log an error */
1090 if (ii != tap->expected_ids_cnt)
1091 {
1092 LOG_INFO("JTAG Tap/device matched");
1093 tap = jtag_tap_next_enabled(tap);
1094 continue;
1095 }
1096 LOG_ERROR("JTAG tap: %s got: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
1097 tap->dotted_name,
1098 idcode,
1099 EXTRACT_MFG( tap->idcode ),
1100 EXTRACT_PART( tap->idcode ),
1101 EXTRACT_VER( tap->idcode ) );
1102 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1103 LOG_ERROR("JTAG tap: %s expected %hhu of %hhu: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
1104 tap->dotted_name,
1105 ii + 1,
1106 tap->expected_ids_cnt,
1107 tap->expected_ids[ii],
1108 EXTRACT_MFG( tap->expected_ids[ii] ),
1109 EXTRACT_PART( tap->expected_ids[ii] ),
1110 EXTRACT_VER( tap->expected_ids[ii] ) );
1111 }
1112 return ERROR_JTAG_INIT_FAILED;
1113 }
1114
1115 /* see if number of discovered devices matches configuration */
1116 if (device_count != jtag_tap_count_enabled())
1117 {
1118 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match (enabled) configuration (%i), total taps: %d",
1119 device_count, jtag_tap_count_enabled(), jtag_tap_count());
1120 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1121 return ERROR_JTAG_INIT_FAILED;
1122 }
1123
1124 return ERROR_OK;
1125 }
1126
1127 static int jtag_validate_chain(void)
1128 {
1129 jtag_tap_t *tap;
1130 int total_ir_length = 0;
1131 u8 *ir_test = NULL;
1132 scan_field_t field;
1133 int chain_pos = 0;
1134
1135 tap = NULL;
1136 total_ir_length = 0;
1137 for(;;){
1138 tap = jtag_tap_next_enabled(tap);
1139 if( tap == NULL ){
1140 break;
1141 }
1142 total_ir_length += tap->ir_length;
1143 }
1144
1145 total_ir_length += 2;
1146 ir_test = malloc(CEIL(total_ir_length, 8));
1147 buf_set_ones(ir_test, total_ir_length);
1148
1149 field.tap = NULL;
1150 field.num_bits = total_ir_length;
1151 field.out_value = ir_test;
1152 field.in_value = ir_test;
1153
1154
1155 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1156 jtag_execute_queue();
1157
1158 tap = NULL;
1159 chain_pos = 0;
1160 int val;
1161 for(;;){
1162 tap = jtag_tap_next_enabled(tap);
1163 if( tap == NULL ){
1164 break;
1165 }
1166
1167 val = buf_get_u32(ir_test, chain_pos, 2);
1168 if (val != 0x1)
1169 {
1170 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1171 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);
1172 free(cbuf);
1173 free(ir_test);
1174 return ERROR_JTAG_INIT_FAILED;
1175 }
1176 chain_pos += tap->ir_length;
1177 }
1178
1179 val = buf_get_u32(ir_test, chain_pos, 2);
1180 if (val != 0x3)
1181 {
1182 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1183 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);
1184 free(cbuf);
1185 free(ir_test);
1186 return ERROR_JTAG_INIT_FAILED;
1187 }
1188
1189 free(ir_test);
1190
1191 return ERROR_OK;
1192 }
1193
1194 enum jtag_tap_cfg_param {
1195 JCFG_EVENT
1196 };
1197
1198 static Jim_Nvp nvp_config_opts[] = {
1199 { .name = "-event", .value = JCFG_EVENT },
1200
1201 { .name = NULL, .value = -1 }
1202 };
1203
1204 static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap)
1205 {
1206 Jim_Nvp *n;
1207 Jim_Obj *o;
1208 int e;
1209
1210 /* parse config or cget options */
1211 while (goi->argc > 0) {
1212 Jim_SetEmptyResult (goi->interp);
1213
1214 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1215 if (e != JIM_OK) {
1216 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1217 return e;
1218 }
1219
1220 switch (n->value) {
1221 case JCFG_EVENT:
1222 if (goi->argc == 0) {
1223 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1224 return JIM_ERR;
1225 }
1226
1227 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1228 if (e != JIM_OK) {
1229 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1230 return e;
1231 }
1232
1233 if (goi->isconfigure) {
1234 if (goi->argc != 1) {
1235 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1236 return JIM_ERR;
1237 }
1238 } else {
1239 if (goi->argc != 0) {
1240 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1241 return JIM_ERR;
1242 }
1243 }
1244
1245 {
1246 jtag_tap_event_action_t *jteap;
1247
1248 jteap = tap->event_action;
1249 /* replace existing? */
1250 while (jteap) {
1251 if (jteap->event == (enum jtag_tap_event)n->value) {
1252 break;
1253 }
1254 jteap = jteap->next;
1255 }
1256
1257 if (goi->isconfigure) {
1258 if (jteap == NULL) {
1259 /* create new */
1260 jteap = calloc(1, sizeof (*jteap));
1261 }
1262 jteap->event = n->value;
1263 Jim_GetOpt_Obj( goi, &o);
1264 if (jteap->body) {
1265 Jim_DecrRefCount(interp, jteap->body);
1266 }
1267 jteap->body = Jim_DuplicateObj(goi->interp, o);
1268 Jim_IncrRefCount(jteap->body);
1269
1270 /* add to head of event list */
1271 jteap->next = tap->event_action;
1272 tap->event_action = jteap;
1273 Jim_SetEmptyResult(goi->interp);
1274 } else {
1275 /* get */
1276 if (jteap == NULL) {
1277 Jim_SetEmptyResult(goi->interp);
1278 } else {
1279 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1280 }
1281 }
1282 }
1283 /* loop for more */
1284 break;
1285 }
1286 } /* while (goi->argc) */
1287
1288 return JIM_OK;
1289 }
1290
1291
1292 static void jtag_tap_init(jtag_tap_t *tap)
1293 {
1294 assert(0 != tap->ir_length);
1295
1296 tap->expected = malloc(tap->ir_length);
1297 tap->expected_mask = malloc(tap->ir_length);
1298 tap->cur_instr = malloc(tap->ir_length);
1299
1300 buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
1301 buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
1302 buf_set_ones(tap->cur_instr, tap->ir_length);
1303
1304 // place TAP in bypass mode
1305 tap->bypass = 1;
1306 // register the reset callback for the TAP
1307 jtag_register_event_callback(&jtag_reset_callback, tap);
1308
1309 LOG_DEBUG("Created Tap: %s @ abs position %d, "
1310 "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name,
1311 tap->abs_chain_position, tap->ir_length,
1312 tap->ir_capture_value, tap->ir_capture_mask);
1313 jtag_tap_add(tap);
1314 }
1315
1316 static void jtag_tap_free(jtag_tap_t *tap)
1317 {
1318 /// @todo is anything missing? no memory leaks please
1319 free((void *)tap->expected_ids);
1320 free((void *)tap->chip);
1321 free((void *)tap->tapname);
1322 free((void *)tap->dotted_name);
1323 free(tap);
1324 }
1325
1326 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1327 {
1328 jtag_tap_t *pTap;
1329 jim_wide w;
1330 int x;
1331 int e;
1332 int reqbits;
1333 Jim_Nvp *n;
1334 char *cp;
1335 const Jim_Nvp opts[] = {
1336 #define NTAP_OPT_IRLEN 0
1337 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1338 #define NTAP_OPT_IRMASK 1
1339 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1340 #define NTAP_OPT_IRCAPTURE 2
1341 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1342 #define NTAP_OPT_ENABLED 3
1343 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1344 #define NTAP_OPT_DISABLED 4
1345 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1346 #define NTAP_OPT_EXPECTED_ID 5
1347 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1348 { .name = NULL , .value = -1 },
1349 };
1350
1351 pTap = malloc( sizeof(jtag_tap_t) );
1352 memset( pTap, 0, sizeof(*pTap) );
1353 if( !pTap ){
1354 Jim_SetResult_sprintf( goi->interp, "no memory");
1355 return JIM_ERR;
1356 }
1357 /*
1358 * we expect CHIP + TAP + OPTIONS
1359 * */
1360 if( goi->argc < 3 ){
1361 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1362 return JIM_ERR;
1363 }
1364 Jim_GetOpt_String( goi, &cp, NULL );
1365 pTap->chip = strdup(cp);
1366
1367 Jim_GetOpt_String( goi, &cp, NULL );
1368 pTap->tapname = strdup(cp);
1369
1370 /* name + dot + name + null */
1371 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1372 cp = malloc( x );
1373 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1374 pTap->dotted_name = cp;
1375
1376 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1377 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1378
1379 /* default is enabled */
1380 pTap->enabled = 1;
1381
1382 /* deal with options */
1383 #define NTREQ_IRLEN 1
1384 #define NTREQ_IRCAPTURE 2
1385 #define NTREQ_IRMASK 4
1386
1387 /* clear them as we find them */
1388 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1389
1390 while( goi->argc ){
1391 e = Jim_GetOpt_Nvp( goi, opts, &n );
1392 if( e != JIM_OK ){
1393 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1394 return e;
1395 }
1396 LOG_DEBUG("Processing option: %s", n->name );
1397 switch( n->value ){
1398 case NTAP_OPT_ENABLED:
1399 pTap->enabled = 1;
1400 break;
1401 case NTAP_OPT_DISABLED:
1402 pTap->enabled = 0;
1403 break;
1404 case NTAP_OPT_EXPECTED_ID:
1405 {
1406 u32 *new_expected_ids;
1407
1408 e = Jim_GetOpt_Wide( goi, &w );
1409 if( e != JIM_OK) {
1410 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1411 return e;
1412 }
1413
1414 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1415 if (new_expected_ids == NULL) {
1416 Jim_SetResult_sprintf( goi->interp, "no memory");
1417 return JIM_ERR;
1418 }
1419
1420 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1421
1422 new_expected_ids[pTap->expected_ids_cnt] = w;
1423
1424 free(pTap->expected_ids);
1425 pTap->expected_ids = new_expected_ids;
1426 pTap->expected_ids_cnt++;
1427 break;
1428 }
1429 case NTAP_OPT_IRLEN:
1430 case NTAP_OPT_IRMASK:
1431 case NTAP_OPT_IRCAPTURE:
1432 e = Jim_GetOpt_Wide( goi, &w );
1433 if( e != JIM_OK ){
1434 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1435 return e;
1436 }
1437 if( (w < 0) || (w > 0xffff) ){
1438 /* wacky value */
1439 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1440 n->name, (int)(w), (int)(w));
1441 return JIM_ERR;
1442 }
1443 switch(n->value){
1444 case NTAP_OPT_IRLEN:
1445 pTap->ir_length = w;
1446 reqbits &= (~(NTREQ_IRLEN));
1447 break;
1448 case NTAP_OPT_IRMASK:
1449 pTap->ir_capture_mask = w;
1450 reqbits &= (~(NTREQ_IRMASK));
1451 break;
1452 case NTAP_OPT_IRCAPTURE:
1453 pTap->ir_capture_value = w;
1454 reqbits &= (~(NTREQ_IRCAPTURE));
1455 break;
1456 }
1457 } /* switch(n->value) */
1458 } /* while( goi->argc ) */
1459
1460 /* Did all the required option bits get cleared? */
1461 if (0 == reqbits)
1462 {
1463 jtag_tap_init(pTap);
1464 return ERROR_OK;
1465 }
1466
1467 Jim_SetResult_sprintf(goi->interp,
1468 "newtap: %s missing required parameters",
1469 pTap->dotted_name);
1470 jtag_tap_free(pTap);
1471 return JIM_ERR;
1472 }
1473
1474 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
1475 {
1476 Jim_GetOptInfo goi;
1477 int e;
1478 Jim_Nvp *n;
1479 Jim_Obj *o;
1480 struct command_context_s *context;
1481
1482 enum {
1483 JTAG_CMD_INTERFACE,
1484 JTAG_CMD_INIT_RESET,
1485 JTAG_CMD_NEWTAP,
1486 JTAG_CMD_TAPENABLE,
1487 JTAG_CMD_TAPDISABLE,
1488 JTAG_CMD_TAPISENABLED,
1489 JTAG_CMD_CONFIGURE,
1490 JTAG_CMD_CGET
1491 };
1492
1493 const Jim_Nvp jtag_cmds[] = {
1494 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
1495 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
1496 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
1497 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
1498 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
1499 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
1500 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
1501 { .name = "cget" , .value = JTAG_CMD_CGET },
1502
1503 { .name = NULL, .value = -1 },
1504 };
1505
1506 context = Jim_GetAssocData(interp, "context");
1507 /* go past the command */
1508 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
1509
1510 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
1511 if( e != JIM_OK ){
1512 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
1513 return e;
1514 }
1515 Jim_SetEmptyResult( goi.interp );
1516 switch( n->value ){
1517 case JTAG_CMD_INTERFACE:
1518 /* return the name of the interface */
1519 /* TCL code might need to know the exact type... */
1520 /* FUTURE: we allow this as a means to "set" the interface. */
1521 if( goi.argc != 0 ){
1522 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1523 return JIM_ERR;
1524 }
1525 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
1526 return JIM_OK;
1527 case JTAG_CMD_INIT_RESET:
1528 if( goi.argc != 0 ){
1529 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
1530 return JIM_ERR;
1531 }
1532 e = jtag_init_reset(context);
1533 if( e != ERROR_OK ){
1534 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
1535 return JIM_ERR;
1536 }
1537 return JIM_OK;
1538 case JTAG_CMD_NEWTAP:
1539 return jim_newtap_cmd( &goi );
1540 break;
1541 case JTAG_CMD_TAPISENABLED:
1542 case JTAG_CMD_TAPENABLE:
1543 case JTAG_CMD_TAPDISABLE:
1544 if( goi.argc != 1 ){
1545 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
1546 return JIM_ERR;
1547 }
1548
1549 {
1550 jtag_tap_t *t;
1551 t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] );
1552 if( t == NULL ){
1553 return JIM_ERR;
1554 }
1555 switch( n->value ){
1556 case JTAG_CMD_TAPISENABLED:
1557 e = t->enabled;
1558 break;
1559 case JTAG_CMD_TAPENABLE:
1560 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
1561 e = 1;
1562 t->enabled = e;
1563 break;
1564 case JTAG_CMD_TAPDISABLE:
1565 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
1566 e = 0;
1567 t->enabled = e;
1568 break;
1569 }
1570 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
1571 return JIM_OK;
1572 }
1573 break;
1574
1575 case JTAG_CMD_CGET:
1576 if( goi.argc < 2 ){
1577 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
1578 return JIM_ERR;
1579 }
1580
1581 {
1582 jtag_tap_t *t;
1583
1584 Jim_GetOpt_Obj(&goi, &o);
1585 t = jtag_tap_by_jim_obj( goi.interp, o );
1586 if( t == NULL ){
1587 return JIM_ERR;
1588 }
1589
1590 goi.isconfigure = 0;
1591 return jtag_tap_configure_cmd( &goi, t);
1592 }
1593 break;
1594
1595 case JTAG_CMD_CONFIGURE:
1596 if( goi.argc < 3 ){
1597 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
1598 return JIM_ERR;
1599 }
1600
1601 {
1602 jtag_tap_t *t;
1603
1604 Jim_GetOpt_Obj(&goi, &o);
1605 t = jtag_tap_by_jim_obj( goi.interp, o );
1606 if( t == NULL ){
1607 return JIM_ERR;
1608 }
1609
1610 goi.isconfigure = 1;
1611 return jtag_tap_configure_cmd( &goi, t);
1612 }
1613 }
1614
1615 return JIM_ERR;
1616 }
1617
1618 int jtag_register_commands(struct command_context_s *cmd_ctx)
1619 {
1620 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
1621
1622 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1623 COMMAND_CONFIG, "try to configure interface");
1624 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1625 COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)");
1626 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1627 COMMAND_ANY, "set maximum jtag speed (if supported); "
1628 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
1629 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1630 COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
1631 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1632 COMMAND_ANY,
1633 "[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]");
1634 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1635 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1636 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1637 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1638
1639 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1640 COMMAND_EXEC, "print current scan chain configuration");
1641
1642 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1643 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1644 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1645 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1646 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1647 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1648 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1649 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1650 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1651 register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed");
1652
1653 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1654 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1655 register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command,
1656 COMMAND_ANY, "verify value capture <enable|disable>");
1657 register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command,
1658 COMMAND_ANY, "choose short(default) or long tms_sequence <short|long>");
1659 return ERROR_OK;
1660 }
1661
1662 int jtag_interface_init(struct command_context_s *cmd_ctx)
1663 {
1664 if (jtag)
1665 return ERROR_OK;
1666
1667 if (!jtag_interface)
1668 {
1669 /* nothing was previously specified by "interface" command */
1670 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1671 return ERROR_JTAG_INVALID_INTERFACE;
1672 }
1673 if(hasKHz)
1674 {
1675 jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed);
1676 hasKHz = false;
1677 }
1678
1679 if (jtag_interface->init() != ERROR_OK)
1680 return ERROR_JTAG_INIT_FAILED;
1681
1682 jtag = jtag_interface;
1683 return ERROR_OK;
1684 }
1685
1686 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1687 {
1688 jtag_tap_t *tap;
1689 int retval;
1690
1691 LOG_DEBUG("Init JTAG chain");
1692
1693 tap = jtag_tap_next_enabled(NULL);
1694 if( tap == NULL ){
1695 LOG_ERROR("There are no enabled taps?");
1696 return ERROR_JTAG_INIT_FAILED;
1697 }
1698
1699 jtag_add_tlr();
1700 if ((retval=jtag_execute_queue())!=ERROR_OK)
1701 return retval;
1702
1703 /* examine chain first, as this could discover the real chain layout */
1704 if (jtag_examine_chain() != ERROR_OK)
1705 {
1706 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1707 }
1708
1709 if (jtag_validate_chain() != ERROR_OK)
1710 {
1711 LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
1712 }
1713
1714 return ERROR_OK;
1715 }
1716
1717 int jtag_interface_quit(void)
1718 {
1719 if (!jtag || !jtag->quit)
1720 return ERROR_OK;
1721
1722 // close the JTAG interface
1723 int result = jtag->quit();
1724 if (ERROR_OK != result)
1725 LOG_ERROR("failed: %d", result);
1726
1727 return ERROR_OK;
1728 }
1729
1730
1731 int jtag_init_reset(struct command_context_s *cmd_ctx)
1732 {
1733 int retval;
1734
1735 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1736 return retval;
1737
1738 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
1739
1740 /* Reset can happen after a power cycle.
1741 *
1742 * Ideally we would only assert TRST or run RESET before the target reset.
1743 *
1744 * However w/srst_pulls_trst, trst is asserted together with the target
1745 * reset whether we want it or not.
1746 *
1747 * NB! Some targets have JTAG circuitry disabled until a
1748 * trst & srst has been asserted.
1749 *
1750 * NB! here we assume nsrst/ntrst delay are sufficient!
1751 *
1752 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1753 *
1754 */
1755 jtag_add_reset(1, 0); /* RESET or TRST */
1756 if (jtag_reset_config & RESET_HAS_SRST)
1757 {
1758 jtag_add_reset(1, 1);
1759 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1760 jtag_add_reset(0, 1);
1761 }
1762 jtag_add_reset(0, 0);
1763 if ((retval = jtag_execute_queue()) != ERROR_OK)
1764 return retval;
1765
1766 /* Check that we can communication on the JTAG chain + eventually we want to
1767 * be able to perform enumeration only after OpenOCD has started
1768 * telnet and GDB server
1769 *
1770 * That would allow users to more easily perform any magic they need to before
1771 * reset happens.
1772 */
1773 return jtag_init_inner(cmd_ctx);
1774 }
1775
1776 int jtag_init(struct command_context_s *cmd_ctx)
1777 {
1778 int retval;
1779 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1780 return retval;
1781 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1782 {
1783 return ERROR_OK;
1784 }
1785 return jtag_init_reset(cmd_ctx);
1786 }
1787
1788 void jtag_set_speed_khz(unsigned khz)
1789 {
1790 speed_khz = khz;
1791 }
1792 unsigned jtag_get_speed_khz(void)
1793 {
1794 return speed_khz;
1795 }
1796
1797 static int default_khz(int khz, int *jtag_speed)
1798 {
1799 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1800 return ERROR_FAIL;
1801 }
1802
1803 static int default_speed_div(int speed, int *khz)
1804 {
1805 LOG_ERROR("Translation from jtag_speed to khz not implemented");
1806 return ERROR_FAIL;
1807 }
1808
1809 static int default_power_dropout(int *dropout)
1810 {
1811 *dropout=0; /* by default we can't detect power dropout */
1812 return ERROR_OK;
1813 }
1814
1815 static int default_srst_asserted(int *srst_asserted)
1816 {
1817 *srst_asserted=0; /* by default we can't detect srst asserted */
1818 return ERROR_OK;
1819 }
1820
1821 static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1822 {
1823 int i;
1824 int retval;
1825
1826 /* check whether the interface is already configured */
1827 if (jtag_interface)
1828 {
1829 LOG_WARNING("Interface already configured, ignoring");
1830 return ERROR_OK;
1831 }
1832
1833 /* interface name is a mandatory argument */
1834 if (argc < 1 || args[0][0] == '\0')
1835 {
1836 return ERROR_COMMAND_SYNTAX_ERROR;
1837 }
1838
1839 for (i=0; jtag_interfaces[i]; i++)
1840 {
1841 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1842 {
1843 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
1844 {
1845 return retval;
1846 }
1847
1848 jtag_interface = jtag_interfaces[i];
1849
1850 if (jtag_interface->khz == NULL)
1851 {
1852 jtag_interface->khz = default_khz;
1853 }
1854 if (jtag_interface->speed_div == NULL)
1855 {
1856 jtag_interface->speed_div = default_speed_div;
1857 }
1858 if (jtag_interface->power_dropout == NULL)
1859 {
1860 jtag_interface->power_dropout = default_power_dropout;
1861 }
1862 if (jtag_interface->srst_asserted == NULL)
1863 {
1864 jtag_interface->srst_asserted = default_srst_asserted;
1865 }
1866
1867 return ERROR_OK;
1868 }
1869 }
1870
1871 /* no valid interface was found (i.e. the configuration option,
1872 * didn't match one of the compiled-in interfaces
1873 */
1874 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1875 LOG_ERROR("compiled-in jtag interfaces:");
1876 for (i = 0; jtag_interfaces[i]; i++)
1877 {
1878 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1879 }
1880
1881 return ERROR_JTAG_INVALID_INTERFACE;
1882 }
1883
1884 static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1885 {
1886 int e;
1887 char buf[1024];
1888 Jim_Obj *newargs[ 10 ];
1889 /*
1890 * CONVERT SYNTAX
1891 * argv[-1] = command
1892 * argv[ 0] = ir length
1893 * argv[ 1] = ir capture
1894 * argv[ 2] = ir mask
1895 * argv[ 3] = not actually used by anything but in the docs
1896 */
1897
1898 if( argc < 4 ){
1899 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
1900 return ERROR_OK;
1901 }
1902 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
1903 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
1904 args[0],
1905 args[1],
1906 args[2] );
1907 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
1908 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
1909 command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
1910 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
1911
1912 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
1913 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
1914 sprintf( buf, "chip%d", jtag_tap_count() );
1915 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
1916 sprintf( buf, "tap%d", jtag_tap_count() );
1917 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
1918 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
1919 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
1920 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
1921 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
1922 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
1923 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
1924
1925 command_print( cmd_ctx, "NEW COMMAND:");
1926 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
1927 Jim_GetString( newargs[0], NULL ),
1928 Jim_GetString( newargs[1], NULL ),
1929 Jim_GetString( newargs[2], NULL ),
1930 Jim_GetString( newargs[3], NULL ),
1931 Jim_GetString( newargs[4], NULL ),
1932 Jim_GetString( newargs[5], NULL ),
1933 Jim_GetString( newargs[6], NULL ),
1934 Jim_GetString( newargs[7], NULL ),
1935 Jim_GetString( newargs[8], NULL ),
1936 Jim_GetString( newargs[9], NULL ) );
1937
1938 e = jim_jtag_command( interp, 10, newargs );
1939 if( e != JIM_OK ){
1940 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
1941 }
1942 return e;
1943 }
1944
1945 static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1946 {
1947 jtag_tap_t *tap;
1948
1949 tap = jtag_all_taps();
1950 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
1951 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
1952
1953 while( tap ){
1954 u32 expected, expected_mask, cur_instr, ii;
1955 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
1956 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
1957 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
1958
1959 command_print(cmd_ctx,
1960 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
1961 tap->abs_chain_position,
1962 tap->dotted_name,
1963 tap->enabled ? 'Y' : 'n',
1964 tap->idcode,
1965 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
1966 tap->ir_length,
1967 expected,
1968 expected_mask,
1969 cur_instr);
1970
1971 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
1972 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
1973 tap->expected_ids[ii]);
1974 }
1975
1976 tap = tap->next_tap;
1977 }
1978
1979 return ERROR_OK;
1980 }
1981
1982 static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1983 {
1984 int new_cfg = 0;
1985 int mask = 0;
1986
1987 if (argc < 1)
1988 return ERROR_COMMAND_SYNTAX_ERROR;
1989
1990 /* Original versions cared about the order of these tokens:
1991 * reset_config signals [combination [trst_type [srst_type]]]
1992 * They also clobbered the previous configuration even on error.
1993 *
1994 * Here we don't care about the order, and only change values
1995 * which have been explicitly specified.
1996 */
1997 for (; argc; argc--, args++) {
1998 int tmp = 0;
1999 int m;
2000
2001 /* signals */
2002 m = RESET_HAS_TRST | RESET_HAS_SRST;
2003 if (strcmp(*args, "none") == 0)
2004 tmp = RESET_NONE;
2005 else if (strcmp(*args, "trst_only") == 0)
2006 tmp = RESET_HAS_TRST;
2007 else if (strcmp(*args, "srst_only") == 0)
2008 tmp = RESET_HAS_SRST;
2009 else if (strcmp(*args, "trst_and_srst") == 0)
2010 tmp = RESET_HAS_TRST | RESET_HAS_SRST;
2011 else
2012 m = 0;
2013 if (mask & m) {
2014 LOG_ERROR("extra reset_config %s spec (%s)",
2015 "signal", *args);
2016 return ERROR_INVALID_ARGUMENTS;
2017 }
2018 if (m)
2019 goto next;
2020
2021 /* combination (options for broken wiring) */
2022 m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2023 if (strcmp(*args, "separate") == 0)
2024 /* separate reset lines - default */;
2025 else if (strcmp(*args, "srst_pulls_trst") == 0)
2026 tmp |= RESET_SRST_PULLS_TRST;
2027 else if (strcmp(*args, "trst_pulls_srst") == 0)
2028 tmp |= RESET_TRST_PULLS_SRST;
2029 else if (strcmp(*args, "combined") == 0)
2030 tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2031 else
2032 m = 0;
2033 if (mask & m) {
2034 LOG_ERROR("extra reset_config %s spec (%s)",
2035 "combination", *args);
2036 return ERROR_INVALID_ARGUMENTS;
2037 }
2038 if (m)
2039 goto next;
2040
2041 /* trst_type (NOP without HAS_TRST) */
2042 m = RESET_TRST_OPEN_DRAIN;
2043 if (strcmp(*args, "trst_open_drain") == 0)
2044 tmp |= RESET_TRST_OPEN_DRAIN;
2045 else if (strcmp(*args, "trst_push_pull") == 0)
2046 /* push/pull from adapter - default */;
2047 else
2048 m = 0;
2049 if (mask & m) {
2050 LOG_ERROR("extra reset_config %s spec (%s)",
2051 "trst_type", *args);
2052 return ERROR_INVALID_ARGUMENTS;
2053 }
2054 if (m)
2055 goto next;
2056
2057 /* srst_type (NOP without HAS_SRST) */
2058 m |= RESET_SRST_PUSH_PULL;
2059 if (strcmp(*args, "srst_push_pull") == 0)
2060 tmp |= RESET_SRST_PUSH_PULL;
2061 else if (strcmp(*args, "srst_open_drain") == 0)
2062 /* open drain from adapter - default */;
2063 else
2064 m = 0;
2065 if (mask & m) {
2066 LOG_ERROR("extra reset_config %s spec (%s)",
2067 "srst_type", *args);
2068 return ERROR_INVALID_ARGUMENTS;
2069 }
2070 if (m)
2071 goto next;
2072
2073 /* caller provided nonsense; fail */
2074 LOG_ERROR("unknown reset_config flag (%s)", *args);
2075 return ERROR_INVALID_ARGUMENTS;
2076
2077 next:
2078 /* Remember the bits which were specified (mask)
2079 * and their new values (new_cfg).
2080 */
2081 mask |= m;
2082 new_cfg |= tmp;
2083 }
2084
2085 /* clear previous values of those bits, save new values */
2086 jtag_reset_config &= ~mask;
2087 jtag_reset_config |= new_cfg;
2088
2089 return ERROR_OK;
2090 }
2091
2092 static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2093 {
2094 if (argc < 1)
2095 {
2096 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
2097 exit(-1);
2098 }
2099 else
2100 {
2101 jtag_set_nsrst_delay(strtoul(args[0], NULL, 0));
2102 }
2103
2104 return ERROR_OK;
2105 }
2106
2107 static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2108 {
2109 if (argc < 1)
2110 {
2111 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
2112 exit(-1);
2113 }
2114 else
2115 {
2116 jtag_set_ntrst_delay(strtoul(args[0], NULL, 0));
2117 }
2118
2119 return ERROR_OK;
2120 }
2121
2122
2123 static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2124 {
2125 int retval=ERROR_OK;
2126
2127 if (argc == 1)
2128 {
2129 LOG_DEBUG("handle jtag speed");
2130
2131 int cur_speed = 0;
2132 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2133
2134 /* this command can be called during CONFIG,
2135 * in which case jtag isn't initialized */
2136 if (jtag)
2137 {
2138 retval=jtag->speed(cur_speed);
2139 }
2140 } else if (argc == 0)
2141 {
2142 } else
2143 {
2144 return ERROR_COMMAND_SYNTAX_ERROR;
2145 }
2146 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2147
2148 return retval;
2149 }
2150
2151 static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2152 {
2153 int retval=ERROR_OK;
2154 LOG_DEBUG("handle jtag khz");
2155
2156 int cur_speed = 0;
2157 if(argc == 1)
2158 {
2159 jtag_set_speed_khz(strtoul(args[0], NULL, 0));
2160 if (jtag != NULL)
2161 {
2162 LOG_DEBUG("have interface set up");
2163 int speed_div1;
2164 if ((retval=jtag->khz(jtag_get_speed_khz(), &speed_div1))!=ERROR_OK)
2165 {
2166 jtag_set_speed_khz(0);
2167 return retval;
2168 }
2169
2170 cur_speed = jtag_speed = speed_div1;
2171
2172 retval=jtag->speed(cur_speed);
2173 } else
2174 {
2175 hasKHz = true;
2176 }
2177 } else if (argc==0)
2178 {
2179 } else
2180 {
2181 return ERROR_COMMAND_SYNTAX_ERROR;
2182 }
2183 cur_speed = jtag_get_speed_khz();
2184
2185 if (jtag!=NULL)
2186 {
2187 if ((retval=jtag->speed_div(jtag_speed, &cur_speed))!=ERROR_OK)
2188 return retval;
2189 }
2190
2191 if (cur_speed)
2192 command_print(cmd_ctx, "%d kHz", cur_speed);
2193 else
2194 command_print(cmd_ctx, "RCLK - adaptive");
2195 return retval;
2196
2197 }
2198
2199 static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2200 {
2201 if (argc < 1)
2202 return ERROR_COMMAND_SYNTAX_ERROR;
2203
2204 tap_state_t state = tap_state_by_name(args[0]);
2205 if (state < 0)
2206 {
2207 command_print( cmd_ctx, "Invalid state name: %s\n", args[0] );
2208 return ERROR_COMMAND_SYNTAX_ERROR;
2209 }
2210 jtag_set_end_state(state);
2211 jtag_execute_queue();
2212
2213 command_print(cmd_ctx, "current endstate: %s",
2214 tap_state_name(cmd_queue_end_state));
2215
2216 return ERROR_OK;
2217 }
2218
2219 static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2220 {
2221 int trst = -1;
2222 int srst = -1;
2223
2224 if (argc < 2)
2225 {
2226 return ERROR_COMMAND_SYNTAX_ERROR;
2227 }
2228
2229 if (args[0][0] == '1')
2230 trst = 1;
2231 else if (args[0][0] == '0')
2232 trst = 0;
2233 else
2234 {
2235 return ERROR_COMMAND_SYNTAX_ERROR;
2236 }
2237
2238 if (args[1][0] == '1')
2239 srst = 1;
2240 else if (args[1][0] == '0')
2241 srst = 0;
2242 else
2243 {
2244 return ERROR_COMMAND_SYNTAX_ERROR;
2245 }
2246
2247 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2248 return ERROR_JTAG_INIT_FAILED;
2249
2250 jtag_add_reset(trst, srst);
2251 jtag_execute_queue();
2252
2253 return ERROR_OK;
2254 }
2255
2256 static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2257 {
2258 if (argc < 1)
2259 {
2260 return ERROR_COMMAND_SYNTAX_ERROR;
2261 }
2262
2263 jtag_add_runtest(strtol(args[0], NULL, 0), jtag_get_end_state());
2264 jtag_execute_queue();
2265
2266 return ERROR_OK;
2267
2268 }
2269
2270 /*
2271 * For "irscan" or "drscan" commands, the "end" (really, "next") state
2272 * should be stable ... and *NOT* a shift state, otherwise free-running
2273 * jtag clocks could change the values latched by the update state.
2274 */
2275 static bool scan_is_safe(tap_state_t state)
2276 {
2277 switch (state)
2278 {
2279 case TAP_RESET:
2280 case TAP_IDLE:
2281 case TAP_DRPAUSE:
2282 case TAP_IRPAUSE:
2283 return true;
2284 default:
2285 return false;
2286 }
2287 }
2288
2289
2290 static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2291 {
2292 int i;
2293 scan_field_t *fields;
2294 jtag_tap_t *tap;
2295 tap_state_t endstate;
2296
2297 if ((argc < 2) || (argc % 2))
2298 {
2299 return ERROR_COMMAND_SYNTAX_ERROR;
2300 }
2301
2302 /* optional "-endstate" "statename" at the end of the arguments,
2303 * so that e.g. IRPAUSE can let us load the data register before
2304 * entering RUN/IDLE to execute the instruction we load here.
2305 */
2306 endstate = TAP_IDLE;
2307
2308 if( argc >= 4 ){
2309 /* have at least one pair of numbers. */
2310 /* is last pair the magic text? */
2311 if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){
2312 const char *cpA;
2313 const char *cpS;
2314 cpA = args[ argc-1 ];
2315 for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){
2316 cpS = tap_state_name( endstate );
2317 if( 0 == strcmp( cpA, cpS ) ){
2318 break;
2319 }
2320 }
2321 if( endstate >= TAP_NUM_STATES ){
2322 return ERROR_COMMAND_SYNTAX_ERROR;
2323 } else {
2324 if (!scan_is_safe(endstate))
2325 LOG_WARNING("irscan with unsafe "
2326 "endstate \"%s\"", cpA);
2327 /* found - remove the last 2 args */
2328 argc -= 2;
2329 }
2330 }
2331 }
2332
2333 int num_fields = argc / 2;
2334
2335 fields = malloc(sizeof(scan_field_t) * num_fields);
2336
2337 for (i = 0; i < num_fields; i++)
2338 {
2339 tap = jtag_tap_by_string( args[i*2] );
2340 if (tap==NULL)
2341 {
2342 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2343 return ERROR_FAIL;
2344 }
2345 int field_size = tap->ir_length;
2346 fields[i].tap = tap;
2347 fields[i].num_bits = field_size;
2348 fields[i].out_value = malloc(CEIL(field_size, 8));
2349 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2350 fields[i].in_value = NULL;
2351 }
2352
2353 /* did we have an endstate? */
2354 jtag_add_ir_scan(num_fields, fields, endstate);
2355
2356 int retval=jtag_execute_queue();
2357
2358 for (i = 0; i < num_fields; i++)
2359 free(fields[i].out_value);
2360
2361 free (fields);
2362
2363 return retval;
2364 }
2365
2366 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2367 {
2368 int retval;
2369 scan_field_t *fields;
2370 int num_fields;
2371 int field_count = 0;
2372 int i, e;
2373 jtag_tap_t *tap;
2374 tap_state_t endstate;
2375
2376 /* args[1] = device
2377 * args[2] = num_bits
2378 * args[3] = hex string
2379 * ... repeat num bits and hex string ...
2380 *
2381 * .. optionally:
2382 * args[N-2] = "-endstate"
2383 * args[N-1] = statename
2384 */
2385 if ((argc < 4) || ((argc % 2)!=0))
2386 {
2387 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2388 return JIM_ERR;
2389 }
2390
2391 endstate = TAP_IDLE;
2392
2393 /* validate arguments as numbers */
2394 e = JIM_OK;
2395 for (i = 2; i < argc; i+=2)
2396 {
2397 long bits;
2398 const char *cp;
2399
2400 e = Jim_GetLong(interp, args[i], &bits);
2401 /* If valid - try next arg */
2402 if( e == JIM_OK ){
2403 continue;
2404 }
2405
2406 /* Not valid.. are we at the end? */
2407 if ( ((i+2) != argc) ){
2408 /* nope, then error */
2409 return e;
2410 }
2411
2412 /* it could be: "-endstate FOO"
2413 * e.g. DRPAUSE so we can issue more instructions
2414 * before entering RUN/IDLE and executing them.
2415 */
2416
2417 /* get arg as a string. */
2418 cp = Jim_GetString( args[i], NULL );
2419 /* is it the magic? */
2420 if( 0 == strcmp( "-endstate", cp ) ){
2421 /* is the statename valid? */
2422 cp = Jim_GetString( args[i+1], NULL );
2423
2424 /* see if it is a valid state name */
2425 endstate = tap_state_by_name(cp);
2426 if( endstate < 0 ){
2427 /* update the error message */
2428 Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp );
2429 } else {
2430 if (!scan_is_safe(endstate))
2431 LOG_WARNING("drscan with unsafe "
2432 "endstate \"%s\"", cp);
2433
2434 /* valid - so clear the error */
2435 e = JIM_OK;
2436 /* and remove the last 2 args */
2437 argc -= 2;
2438 }
2439 }
2440
2441 /* Still an error? */
2442 if( e != JIM_OK ){
2443 return e; /* too bad */
2444 }
2445 } /* validate args */
2446
2447 tap = jtag_tap_by_jim_obj( interp, args[1] );
2448 if( tap == NULL ){
2449 return JIM_ERR;
2450 }
2451
2452 num_fields=(argc-2)/2;
2453 fields = malloc(sizeof(scan_field_t) * num_fields);
2454 for (i = 2; i < argc; i+=2)
2455 {
2456 long bits;
2457 int len;
2458 const char *str;
2459
2460 Jim_GetLong(interp, args[i], &bits);
2461 str = Jim_GetString(args[i+1], &len);
2462
2463 fields[field_count].tap = tap;
2464 fields[field_count].num_bits = bits;
2465 fields[field_count].out_value = malloc(CEIL(bits, 8));
2466 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2467 fields[field_count].in_value = fields[field_count].out_value;
2468 field_count++;
2469 }
2470
2471 jtag_add_dr_scan(num_fields, fields, endstate);
2472
2473 retval = jtag_execute_queue();
2474 if (retval != ERROR_OK)
2475 {
2476 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2477 return JIM_ERR;
2478 }
2479
2480 field_count=0;
2481 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2482 for (i = 2; i < argc; i+=2)
2483 {
2484 long bits;
2485 char *str;
2486
2487 Jim_GetLong(interp, args[i], &bits);
2488 str = buf_to_str(fields[field_count].in_value, bits, 16);
2489 free(fields[field_count].out_value);
2490
2491 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2492 free(str);
2493 field_count++;
2494 }
2495
2496 Jim_SetResult(interp, list);
2497
2498 free(fields);
2499
2500 return JIM_OK;
2501 }
2502
2503
2504 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2505 {
2506 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
2507
2508 return JIM_OK;
2509 }
2510
2511
2512 static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2513 {
2514 if (argc == 1)
2515 {
2516 if (strcmp(args[0], "enable") == 0)
2517 {
2518 jtag_verify_capture_ir = 1;
2519 }
2520 else if (strcmp(args[0], "disable") == 0)
2521 {
2522 jtag_verify_capture_ir = 0;
2523 } else
2524 {
2525 return ERROR_COMMAND_SYNTAX_ERROR;
2526 }
2527 } else if (argc != 0)
2528 {
2529 return ERROR_COMMAND_SYNTAX_ERROR;
2530 }
2531
2532 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2533
2534 return ERROR_OK;
2535 }
2536
2537 void jtag_set_verify(bool enable)
2538 {
2539 jtag_verify = enable;
2540 }
2541
2542 bool jtag_will_verify()
2543 {
2544 return jtag_verify;
2545 }
2546
2547 static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2548 {
2549 if (argc > 1)
2550 return ERROR_COMMAND_SYNTAX_ERROR;
2551
2552 if (argc == 1)
2553 {
2554 if (strcmp(args[0], "enable") == 0)
2555 jtag_set_verify(true);
2556 else if (strcmp(args[0], "disable") == 0)
2557 jtag_set_verify(false);
2558 else
2559 return ERROR_COMMAND_SYNTAX_ERROR;
2560 }
2561
2562 const char *status = jtag_will_verify() ? "enabled": "disabled";
2563 command_print(cmd_ctx, "verify jtag capture is %s", status);
2564
2565 return ERROR_OK;
2566 }
2567
2568
2569 int jtag_power_dropout(int *dropout)
2570 {
2571 return jtag->power_dropout(dropout);
2572 }
2573
2574 int jtag_srst_asserted(int *srst_asserted)
2575 {
2576 return jtag->srst_asserted(srst_asserted);
2577 }
2578
2579 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2580 {
2581 jtag_tap_event_action_t * jteap;
2582 int done;
2583
2584 jteap = tap->event_action;
2585
2586 done = 0;
2587 while (jteap) {
2588 if (jteap->event == e) {
2589 done = 1;
2590 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2591 tap->dotted_name,
2592 e,
2593 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2594 Jim_GetString(jteap->body, NULL) );
2595 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2596 Jim_PrintErrorMessage(interp);
2597 }
2598 }
2599
2600 jteap = jteap->next;
2601 }
2602
2603 if (!done) {
2604 LOG_DEBUG( "event %d %s - no action",
2605 e,
2606 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2607 }
2608 }
2609
2610 static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2611 {
2612 if (argc > 1)
2613 return ERROR_COMMAND_SYNTAX_ERROR;
2614
2615 if (argc == 1)
2616 {
2617 bool use_new_table;
2618 if (strcmp(args[0], "short") == 0)
2619 use_new_table = true;
2620 else if (strcmp(args[0], "long") == 0)
2621 use_new_table = false;
2622 else
2623 return ERROR_COMMAND_SYNTAX_ERROR;
2624
2625 tap_use_new_tms_table(use_new_table);
2626 }
2627
2628 command_print(cmd_ctx, "tms sequence is %s",
2629 tap_uses_new_tms_table() ? "short": "long");
2630
2631 return ERROR_OK;
2632 }
2633
2634 /**
2635 * Function jtag_add_statemove
2636 * moves from the current state to the goal \a state. This needs
2637 * to be handled according to the xsvf spec, see the XSTATE command
2638 * description.
2639 */
2640 int jtag_add_statemove(tap_state_t goal_state)
2641 {
2642 int retval = ERROR_OK;
2643
2644 tap_state_t moves[8];
2645 tap_state_t cur_state = cmd_queue_cur_state;
2646 int i;
2647 int tms_bits;
2648 int tms_count;
2649
2650 LOG_DEBUG( "cur_state=%s goal_state=%s",
2651 tap_state_name(cur_state),
2652 tap_state_name(goal_state) );
2653
2654
2655 /* From the XSVF spec, pertaining to XSTATE:
2656
2657 For special states known as stable states (Test-Logic-Reset,
2658 Run-Test/Idle, Pause-DR, Pause- IR), an XSVF interpreter follows
2659 predefined TAP state paths when the starting state is a stable state and
2660 when the XSTATE specifies a new stable state (see the STATE command in
2661 the [Ref 5] for the TAP state paths between stable states). For
2662 non-stable states, XSTATE should specify a state that is only one TAP
2663 state transition distance from the current TAP state to avoid undefined
2664 TAP state paths. A sequence of multiple XSTATE commands can be issued to
2665 transition the TAP through a specific state path.
2666 */
2667
2668 if (goal_state==cur_state )
2669 ; /* nothing to do */
2670
2671 else if( goal_state==TAP_RESET )
2672 {
2673 jtag_add_tlr();
2674 }
2675
2676 else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) )
2677 {
2678 /* note: unless tms_bits holds a path that agrees with [Ref 5] in above
2679 spec, then this code is not fully conformant to the xsvf spec. This
2680 puts a burden on tap_get_tms_path() function from the xsvf spec.
2681 If in doubt, you should confirm that that burden is being met.
2682 */
2683
2684 tms_bits = tap_get_tms_path(cur_state, goal_state);
2685 tms_count = tap_get_tms_path_len(cur_state, goal_state);
2686
2687 assert( (unsigned) tms_count < DIM(moves) );
2688
2689 for (i=0; i<tms_count; i++, tms_bits>>=1)
2690 {
2691 bool bit = tms_bits & 1;
2692
2693 cur_state = tap_state_transition(cur_state, bit);
2694 moves[i] = cur_state;
2695 }
2696
2697 jtag_add_pathmove(tms_count, moves);
2698 }
2699
2700 /* else state must be immediately reachable in one clock cycle, and does not
2701 need to be a stable state.
2702 */
2703 else if( tap_state_transition(cur_state, true) == goal_state
2704 || tap_state_transition(cur_state, false) == goal_state )
2705 {
2706 /* move a single state */
2707 moves[0] = goal_state;
2708 jtag_add_pathmove( 1, moves );
2709 }
2710
2711 else
2712 {
2713 retval = ERROR_FAIL;
2714 }
2715
2716 return retval;
2717 }
2718
2719 void jtag_set_nsrst_delay(unsigned delay)
2720 {
2721 jtag_nsrst_delay = delay;
2722 }
2723 void jtag_set_ntrst_delay(unsigned delay)
2724 {
2725 jtag_ntrst_delay = delay;
2726 }
2727
2728
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1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=..              |
|+o..   .         |
|*.o   . .        |
|+B . . .         |
|Bo. = o S        |
|Oo.+ + =         |
|oB=.* = . o      |
| =+=.+   + E     |
|. .=o   . o      |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)