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

1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=..              |
|+o..   .         |
|*.o   . .        |
|+B . . .         |
|Bo. = o S        |
|Oo.+ + =         |
|oB=.* = . o      |
| =+=.+   + E     |
|. .=o   . o      |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)