Code Review / openocd.git / blob
? search:
summary | shortlog | log | commit | commitdiff | review | tree
history | raw | HEAD
fix for gaffe in 555 that stopped JTAG chain examine + validate from running.
[openocd.git] / src / jtag / jtag.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "replacements.h"
25
26 #include "jtag.h"
27
28 #include "command.h"
29 #include "log.h"
30 #include "interpreter.h"
31
32 #include "stdlib.h"
33 #include "string.h"
34 #include <unistd.h>
35
36
37 /* note that this is not marked as static as it must be available from outside jtag.c for those
38 that implement the jtag_xxx() minidriver layer
39 */
40 int jtag_error=ERROR_OK;
41
42
43 char* tap_state_strings[16] =
44 {
45 "tlr",
46 "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
47 "rti",
48 "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
49 };
50
51 typedef struct cmd_queue_page_s
52 {
53 void *address;
54 size_t used;
55 struct cmd_queue_page_s *next;
56 } cmd_queue_page_t;
57
58 #define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
59 static cmd_queue_page_t *cmd_queue_pages = NULL;
60
61 /* tap_move[i][j]: tap movement command to go from state i to state j
62 * 0: Test-Logic-Reset
63 * 1: Run-Test/Idle
64 * 2: Shift-DR
65 * 3: Pause-DR
66 * 4: Shift-IR
67 * 5: Pause-IR
68 *
69 * SD->SD and SI->SI have to be caught in interface specific code
70 */
71 u8 tap_move[6][6] =
72 {
73 /* TLR RTI SD PD SI PI */
74 {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
75 {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
76 {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
77 {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
78 {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
79 {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
80 };
81
82 int tap_move_map[16] = {
83 0, -1, -1, 2, -1, 3, -1, -1,
84 1, -1, -1, 4, -1, 5, -1, -1
85 };
86
87 tap_transition_t tap_transitions[16] =
88 {
89 {TAP_TLR, TAP_RTI}, /* TLR */
90 {TAP_SIS, TAP_CD}, /* SDS */
91 {TAP_E1D, TAP_SD}, /* CD */
92 {TAP_E1D, TAP_SD}, /* SD */
93 {TAP_UD, TAP_PD}, /* E1D */
94 {TAP_E2D, TAP_PD}, /* PD */
95 {TAP_UD, TAP_SD}, /* E2D */
96 {TAP_SDS, TAP_RTI}, /* UD */
97 {TAP_SDS, TAP_RTI}, /* RTI */
98 {TAP_TLR, TAP_CI}, /* SIS */
99 {TAP_E1I, TAP_SI}, /* CI */
100 {TAP_E1I, TAP_SI}, /* SI */
101 {TAP_UI, TAP_PI}, /* E1I */
102 {TAP_E2I, TAP_PI}, /* PI */
103 {TAP_UI, TAP_SI}, /* E2I */
104 {TAP_SDS, TAP_RTI} /* UI */
105 };
106
107 char* jtag_event_strings[] =
108 {
109 "JTAG controller reset(tms or TRST)"
110 };
111
112 /* kludge!!!! these are just global variables that the
113 * interface use internally. They really belong
114 * inside the drivers, but we don't want to break
115 * linking the drivers!!!!
116 */
117 enum tap_state end_state = TAP_TLR;
118 enum tap_state cur_state = TAP_TLR;
119 int jtag_trst = 0;
120 int jtag_srst = 0;
121
122 jtag_command_t *jtag_command_queue = NULL;
123 jtag_command_t **last_comand_pointer = &jtag_command_queue;
124 jtag_device_t *jtag_devices = NULL;
125 int jtag_num_devices = 0;
126 int jtag_ir_scan_size = 0;
127 enum reset_types jtag_reset_config = RESET_NONE;
128 enum tap_state cmd_queue_end_state = TAP_TLR;
129 enum tap_state cmd_queue_cur_state = TAP_TLR;
130
131 int jtag_verify_capture_ir = 1;
132
133 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
134 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
135 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
136
137 /* maximum number of JTAG devices expected in the chain
138 */
139 #define JTAG_MAX_CHAIN_SIZE 20
140
141 /* callbacks to inform high-level handlers about JTAG state changes */
142 jtag_event_callback_t *jtag_event_callbacks;
143
144 /* speed in kHz*/
145 static int speed1 = 0, speed2 = 0;
146 /* flag if the kHz speed was defined */
147 static int hasKHz = 0;
148
149 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
150 */
151
152 #if BUILD_ECOSBOARD == 1
153 extern jtag_interface_t eCosBoard_interface;
154 #endif
155
156 #if BUILD_PARPORT == 1
157 extern jtag_interface_t parport_interface;
158 #endif
159
160 #if BUILD_DUMMY == 1
161 extern jtag_interface_t dummy_interface;
162 #endif
163
164 #if BUILD_FT2232_FTD2XX == 1
165 extern jtag_interface_t ft2232_interface;
166 #endif
167
168 #if BUILD_FT2232_LIBFTDI == 1
169 extern jtag_interface_t ft2232_interface;
170 #endif
171
172 #if BUILD_AMTJTAGACCEL == 1
173 extern jtag_interface_t amt_jtagaccel_interface;
174 #endif
175
176 #if BUILD_EP93XX == 1
177 extern jtag_interface_t ep93xx_interface;
178 #endif
179
180 #if BUILD_AT91RM9200 == 1
181 extern jtag_interface_t at91rm9200_interface;
182 #endif
183
184 #if BUILD_GW16012 == 1
185 extern jtag_interface_t gw16012_interface;
186 #endif
187
188 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
189 extern jtag_interface_t presto_interface;
190 #endif
191
192 #if BUILD_USBPROG == 1
193 extern jtag_interface_t usbprog_interface;
194 #endif
195
196 jtag_interface_t *jtag_interfaces[] = {
197 #if BUILD_ECOSBOARD == 1
198 &eCosBoard_interface,
199 #endif
200 #if BUILD_PARPORT == 1
201 &parport_interface,
202 #endif
203 #if BUILD_DUMMY == 1
204 &dummy_interface,
205 #endif
206 #if BUILD_FT2232_FTD2XX == 1
207 &ft2232_interface,
208 #endif
209 #if BUILD_FT2232_LIBFTDI == 1
210 &ft2232_interface,
211 #endif
212 #if BUILD_AMTJTAGACCEL == 1
213 &amt_jtagaccel_interface,
214 #endif
215 #if BUILD_EP93XX == 1
216 &ep93xx_interface,
217 #endif
218 #if BUILD_AT91RM9200 == 1
219 &at91rm9200_interface,
220 #endif
221 #if BUILD_GW16012 == 1
222 &gw16012_interface,
223 #endif
224 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
225 &presto_interface,
226 #endif
227 #if BUILD_USBPROG == 1
228 &usbprog_interface,
229 #endif
230 NULL,
231 };
232
233 jtag_interface_t *jtag = NULL;
234
235 /* configuration */
236 jtag_interface_t *jtag_interface = NULL;
237 int jtag_speed = 0;
238 int jtag_speed_post_reset = 0;
239
240
241 /* forward declarations */
242 void jtag_add_pathmove(int num_states, enum tap_state *path);
243 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
244 void jtag_add_end_state(enum tap_state endstate);
245 void jtag_add_sleep(u32 us);
246 int jtag_execute_queue(void);
247 int jtag_cancel_queue(void);
248
249 /* jtag commands */
250 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
251 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
252 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
253 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
254 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
255 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
256 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
257
258 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
259
260 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
261 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
262 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
263 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
264 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
265
266 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
267
268 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
269 {
270 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
271
272 if (callback == NULL)
273 {
274 return ERROR_INVALID_ARGUMENTS;
275 }
276
277 if (*callbacks_p)
278 {
279 while ((*callbacks_p)->next)
280 callbacks_p = &((*callbacks_p)->next);
281 callbacks_p = &((*callbacks_p)->next);
282 }
283
284 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
285 (*callbacks_p)->callback = callback;
286 (*callbacks_p)->priv = priv;
287 (*callbacks_p)->next = NULL;
288
289 return ERROR_OK;
290 }
291
292 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
293 {
294 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
295
296 if (callback == NULL)
297 {
298 return ERROR_INVALID_ARGUMENTS;
299 }
300
301 while (*callbacks_p)
302 {
303 jtag_event_callback_t **next = &((*callbacks_p)->next);
304 if ((*callbacks_p)->callback == callback)
305 {
306 free(*callbacks_p);
307 *callbacks_p = *next;
308 }
309 callbacks_p = next;
310 }
311
312 return ERROR_OK;
313 }
314
315 int jtag_call_event_callbacks(enum jtag_event event)
316 {
317 jtag_event_callback_t *callback = jtag_event_callbacks;
318
319 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
320
321 while (callback)
322 {
323 callback->callback(event, callback->priv);
324 callback = callback->next;
325 }
326
327 return ERROR_OK;
328 }
329
330 /* returns a pointer to the pointer of the last command in queue
331 * this may be a pointer to the root pointer (jtag_command_queue)
332 * or to the next member of the last but one command
333 */
334 jtag_command_t** jtag_get_last_command_p(void)
335 {
336 /* jtag_command_t *cmd = jtag_command_queue;
337
338 if (cmd)
339 while (cmd->next)
340 cmd = cmd->next;
341 else
342 return &jtag_command_queue;
343
344 return &cmd->next;*/
345
346 return last_comand_pointer;
347 }
348
349 /* returns a pointer to the n-th device in the scan chain */
350 jtag_device_t* jtag_get_device(int num)
351 {
352 jtag_device_t *device = jtag_devices;
353 int i = 0;
354
355 while (device)
356 {
357 if (num == i)
358 return device;
359 device = device->next;
360 i++;
361 }
362
363 LOG_ERROR("jtag device number %d not defined", num);
364 exit(-1);
365 }
366
367 void* cmd_queue_alloc(size_t size)
368 {
369 cmd_queue_page_t **p_page = &cmd_queue_pages;
370 int offset;
371 u8 *t;
372
373 if (*p_page)
374 {
375 while ((*p_page)->next)
376 p_page = &((*p_page)->next);
377 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
378 p_page = &((*p_page)->next);
379 }
380
381 if (!*p_page)
382 {
383 *p_page = malloc(sizeof(cmd_queue_page_t));
384 (*p_page)->used = 0;
385 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
386 (*p_page)->next = NULL;
387 }
388
389 offset = (*p_page)->used;
390 (*p_page)->used += size;
391
392 t=(u8 *)((*p_page)->address);
393 return t + offset;
394 }
395
396 void cmd_queue_free()
397 {
398 cmd_queue_page_t *page = cmd_queue_pages;
399
400 while (page)
401 {
402 cmd_queue_page_t *last = page;
403 free(page->address);
404 page = page->next;
405 free(last);
406 }
407
408 cmd_queue_pages = NULL;
409 }
410
411 static void jtag_prelude1()
412 {
413 if (jtag_trst == 1)
414 {
415 LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
416 jtag_error=ERROR_JTAG_TRST_ASSERTED;
417 return;
418 }
419
420 if (cmd_queue_end_state == TAP_TLR)
421 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
422 }
423
424 static void jtag_prelude(enum tap_state state)
425 {
426 jtag_prelude1();
427
428 if (state != -1)
429 jtag_add_end_state(state);
430
431 cmd_queue_cur_state = cmd_queue_end_state;
432 }
433
434 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
435 {
436 int retval;
437
438 jtag_prelude(state);
439
440 retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
441 if (retval!=ERROR_OK)
442 jtag_error=retval;
443 }
444
445 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
446 {
447 jtag_command_t **last_cmd;
448 jtag_device_t *device;
449 int i, j;
450 int scan_size = 0;
451
452
453 last_cmd = jtag_get_last_command_p();
454
455 /* allocate memory for a new list member */
456 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
457 (*last_cmd)->next = NULL;
458 last_comand_pointer = &((*last_cmd)->next);
459 (*last_cmd)->type = JTAG_SCAN;
460
461 /* allocate memory for ir scan command */
462 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
463 (*last_cmd)->cmd.scan->ir_scan = 1;
464 (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
465 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
466 (*last_cmd)->cmd.scan->end_state = state;
467
468 for (i = 0; i < jtag_num_devices; i++)
469 {
470 int found = 0;
471 device = jtag_get_device(i);
472 scan_size = device->ir_length;
473 (*last_cmd)->cmd.scan->fields[i].device = i;
474 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
475 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
476 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
477
478 /* search the list */
479 for (j = 0; j < num_fields; j++)
480 {
481 if (i == fields[j].device)
482 {
483 found = 1;
484 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
485 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
486
487 if (jtag_verify_capture_ir)
488 {
489 if (fields[j].in_handler==NULL)
490 {
491 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
492 } else
493 {
494 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
495 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
496 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
497 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
498 }
499 }
500
501 device->bypass = 0;
502 break;
503 }
504 }
505
506 if (!found)
507 {
508 /* if a device isn't listed, set it to BYPASS */
509 (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
510 (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
511 device->bypass = 1;
512
513 }
514
515 /* update device information */
516 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
517 }
518
519 return ERROR_OK;
520 }
521
522 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
523 {
524 int retval;
525
526 jtag_prelude(state);
527
528 retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
529 if (retval!=ERROR_OK)
530 jtag_error=retval;
531 }
532
533 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
534 {
535 int i;
536 jtag_command_t **last_cmd;
537
538 last_cmd = jtag_get_last_command_p();
539
540 /* allocate memory for a new list member */
541 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
542 (*last_cmd)->next = NULL;
543 last_comand_pointer = &((*last_cmd)->next);
544 (*last_cmd)->type = JTAG_SCAN;
545
546 /* allocate memory for ir scan command */
547 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
548 (*last_cmd)->cmd.scan->ir_scan = 1;
549 (*last_cmd)->cmd.scan->num_fields = num_fields;
550 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
551 (*last_cmd)->cmd.scan->end_state = state;
552
553 for (i = 0; i < num_fields; i++)
554 {
555 int num_bits = fields[i].num_bits;
556 int num_bytes = CEIL(fields[i].num_bits, 8);
557 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
558 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
559 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
560 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
561 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
562 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
563 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
564 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
565 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
566 }
567 return ERROR_OK;
568 }
569
570 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
571 {
572 int retval;
573
574 jtag_prelude(state);
575
576 retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
577 if (retval!=ERROR_OK)
578 jtag_error=retval;
579 }
580
581 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
582 {
583 int i, j;
584 int bypass_devices = 0;
585 int field_count = 0;
586 int scan_size;
587
588 jtag_command_t **last_cmd = jtag_get_last_command_p();
589 jtag_device_t *device = jtag_devices;
590
591 /* count devices in bypass */
592 while (device)
593 {
594 if (device->bypass)
595 bypass_devices++;
596 device = device->next;
597 }
598
599 /* allocate memory for a new list member */
600 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
601 last_comand_pointer = &((*last_cmd)->next);
602 (*last_cmd)->next = NULL;
603 (*last_cmd)->type = JTAG_SCAN;
604
605 /* allocate memory for dr scan command */
606 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
607 (*last_cmd)->cmd.scan->ir_scan = 0;
608 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
609 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
610 (*last_cmd)->cmd.scan->end_state = state;
611
612 for (i = 0; i < jtag_num_devices; i++)
613 {
614 int found = 0;
615 (*last_cmd)->cmd.scan->fields[field_count].device = i;
616
617 for (j = 0; j < num_fields; j++)
618 {
619 if (i == fields[j].device)
620 {
621 found = 1;
622 scan_size = fields[j].num_bits;
623 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
624 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
625 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
626 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
627 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
628 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
629 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
630 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
631 }
632 }
633 if (!found)
634 {
635 #ifdef _DEBUG_JTAG_IO_
636 /* if a device isn't listed, the BYPASS register should be selected */
637 if (!jtag_get_device(i)->bypass)
638 {
639 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
640 exit(-1);
641 }
642 #endif
643 /* program the scan field to 1 bit length, and ignore it's value */
644 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
645 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
646 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
647 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
648 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
649 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
650 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
651 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
652 }
653 else
654 {
655 #ifdef _DEBUG_JTAG_IO_
656 /* if a device is listed, the BYPASS register must not be selected */
657 if (jtag_get_device(i)->bypass)
658 {
659 LOG_ERROR("BUG: scan data for a device in BYPASS");
660 exit(-1);
661 }
662 #endif
663 }
664 }
665 return ERROR_OK;
666 }
667
668 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
669 int num_fields,
670 int *num_bits,
671 u32 *value,
672 enum tap_state end_state)
673 {
674 int i;
675 int field_count = 0;
676 int scan_size;
677 int bypass_devices = 0;
678
679 jtag_command_t **last_cmd = jtag_get_last_command_p();
680 jtag_device_t *device = jtag_devices;
681 /* count devices in bypass */
682 while (device)
683 {
684 if (device->bypass)
685 bypass_devices++;
686 device = device->next;
687 }
688
689 /* allocate memory for a new list member */
690 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
691 last_comand_pointer = &((*last_cmd)->next);
692 (*last_cmd)->next = NULL;
693 (*last_cmd)->type = JTAG_SCAN;
694
695 /* allocate memory for dr scan command */
696 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
697 (*last_cmd)->cmd.scan->ir_scan = 0;
698 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
699 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
700 (*last_cmd)->cmd.scan->end_state = end_state;
701
702 for (i = 0; i < jtag_num_devices; i++)
703 {
704 (*last_cmd)->cmd.scan->fields[field_count].device = i;
705
706 if (i == device_num)
707 {
708 int j;
709 #ifdef _DEBUG_JTAG_IO_
710 /* if a device is listed, the BYPASS register must not be selected */
711 if (jtag_get_device(i)->bypass)
712 {
713 LOG_ERROR("BUG: scan data for a device in BYPASS");
714 exit(-1);
715 }
716 #endif
717 for (j = 0; j < num_fields; j++)
718 {
719 u8 out_value[4];
720 scan_size = num_bits[j];
721 buf_set_u32(out_value, 0, scan_size, value[j]);
722 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
723 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
724 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
725 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
726 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
727 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
728 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
729 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
730 }
731 } else
732 {
733 #ifdef _DEBUG_JTAG_IO_
734 /* if a device isn't listed, the BYPASS register should be selected */
735 if (!jtag_get_device(i)->bypass)
736 {
737 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
738 exit(-1);
739 }
740 #endif
741 /* program the scan field to 1 bit length, and ignore it's value */
742 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
743 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
744 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
745 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
746 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
747 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
748 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
749 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
750 }
751 }
752 }
753
754
755
756
757 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
758 {
759 int retval;
760
761 jtag_prelude(state);
762
763 retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
764 if (retval!=ERROR_OK)
765 jtag_error=retval;
766 }
767
768 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
769 {
770 int i;
771 jtag_command_t **last_cmd = jtag_get_last_command_p();
772
773 /* allocate memory for a new list member */
774 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
775 last_comand_pointer = &((*last_cmd)->next);
776 (*last_cmd)->next = NULL;
777 (*last_cmd)->type = JTAG_SCAN;
778
779 /* allocate memory for scan command */
780 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
781 (*last_cmd)->cmd.scan->ir_scan = 0;
782 (*last_cmd)->cmd.scan->num_fields = num_fields;
783 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
784 (*last_cmd)->cmd.scan->end_state = state;
785
786 for (i = 0; i < num_fields; i++)
787 {
788 int num_bits = fields[i].num_bits;
789 int num_bytes = CEIL(fields[i].num_bits, 8);
790 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
791 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
792 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
793 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
794 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
795 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
796 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
797 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
798 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
799 }
800
801 return ERROR_OK;
802 }
803
804 void jtag_add_tlr()
805 {
806 jtag_prelude(TAP_TLR);
807
808 int retval;
809 retval=interface_jtag_add_tlr();
810 if (retval!=ERROR_OK)
811 jtag_error=retval;
812 }
813
814 int MINIDRIVER(interface_jtag_add_tlr)()
815 {
816 enum tap_state state = TAP_TLR;
817 jtag_command_t **last_cmd = jtag_get_last_command_p();
818
819 /* allocate memory for a new list member */
820 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
821 last_comand_pointer = &((*last_cmd)->next);
822 (*last_cmd)->next = NULL;
823 (*last_cmd)->type = JTAG_STATEMOVE;
824
825 (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
826 (*last_cmd)->cmd.statemove->end_state = state;
827
828
829 return ERROR_OK;
830 }
831
832 void jtag_add_pathmove(int num_states, enum tap_state *path)
833 {
834 enum tap_state cur_state=cmd_queue_cur_state;
835 int i;
836 int retval;
837
838 /* the last state has to be a stable state */
839 if (tap_move_map[path[num_states - 1]] == -1)
840 {
841 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
842 exit(-1);
843 }
844
845 for (i=0; i<num_states; i++)
846 {
847 if ((tap_transitions[cur_state].low != path[i])&&
848 (tap_transitions[cur_state].high != path[i]))
849 {
850 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
851 exit(-1);
852 }
853 cur_state = path[i];
854 }
855
856 jtag_prelude1();
857
858 cmd_queue_cur_state = path[num_states - 1];
859
860 retval=interface_jtag_add_pathmove(num_states, path);
861 if (retval!=ERROR_OK)
862 jtag_error=retval;
863 }
864
865
866 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
867 {
868 jtag_command_t **last_cmd = jtag_get_last_command_p();
869 int i;
870
871 /* allocate memory for a new list member */
872 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
873 last_comand_pointer = &((*last_cmd)->next);
874 (*last_cmd)->next = NULL;
875 (*last_cmd)->type = JTAG_PATHMOVE;
876
877 (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
878 (*last_cmd)->cmd.pathmove->num_states = num_states;
879 (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
880
881 for (i = 0; i < num_states; i++)
882 (*last_cmd)->cmd.pathmove->path[i] = path[i];
883
884 return ERROR_OK;
885 }
886
887 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
888 {
889 jtag_command_t **last_cmd = jtag_get_last_command_p();
890
891 /* allocate memory for a new list member */
892 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
893 (*last_cmd)->next = NULL;
894 last_comand_pointer = &((*last_cmd)->next);
895 (*last_cmd)->type = JTAG_RUNTEST;
896
897 (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
898 (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
899 (*last_cmd)->cmd.runtest->end_state = state;
900
901 return ERROR_OK;
902 }
903
904 void jtag_add_runtest(int num_cycles, enum tap_state state)
905 {
906 int retval;
907
908 jtag_prelude(state);
909
910 /* executed by sw or hw fifo */
911 retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
912 if (retval!=ERROR_OK)
913 jtag_error=retval;
914 }
915
916 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
917 {
918 int trst_with_tlr = 0;
919 int retval;
920
921 /* FIX!!! there are *many* different cases here. A better
922 * approach is needed for legal combinations of transitions...
923 */
924 if ((jtag_reset_config & RESET_HAS_SRST)&&
925 (jtag_reset_config & RESET_HAS_TRST)&&
926 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)&&
927 ((jtag_reset_config & RESET_TRST_PULLS_SRST)==0))
928 {
929 if (((req_tlr_or_trst&&!jtag_trst)||
930 (!req_tlr_or_trst&&jtag_trst))&&
931 ((req_srst&&!jtag_srst)||
932 (!req_srst&&jtag_srst)))
933 {
934 LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
935 }
936 }
937
938 /* Make sure that jtag_reset_config allows the requested reset */
939 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
940 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
941 {
942 LOG_ERROR("BUG: requested reset would assert trst");
943 jtag_error=ERROR_FAIL;
944 return;
945 }
946
947 /* if TRST pulls SRST, we reset with TAP T-L-R */
948 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
949 {
950 trst_with_tlr = 1;
951 }
952
953 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
954 {
955 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
956 jtag_error=ERROR_FAIL;
957 return;
958 }
959
960 if (req_tlr_or_trst)
961 {
962 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
963 {
964 jtag_trst = 1;
965 } else
966 {
967 trst_with_tlr = 1;
968 }
969 } else
970 {
971 jtag_trst = 0;
972 }
973
974 jtag_srst = req_srst;
975
976 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
977 if (retval!=ERROR_OK)
978 {
979 jtag_error=retval;
980 return;
981 }
982
983 if (jtag_srst)
984 {
985 LOG_DEBUG("SRST line asserted");
986 }
987 else
988 {
989 LOG_DEBUG("SRST line released");
990 if (jtag_nsrst_delay)
991 jtag_add_sleep(jtag_nsrst_delay * 1000);
992 }
993
994 if (trst_with_tlr)
995 {
996 LOG_DEBUG("JTAG reset with tms instead of TRST");
997 jtag_add_end_state(TAP_TLR);
998 jtag_add_tlr();
999 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1000 return;
1001 }
1002
1003 if (jtag_trst)
1004 {
1005 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
1006 * and inform possible listeners about this
1007 */
1008 LOG_DEBUG("TRST line asserted");
1009 cmd_queue_cur_state = TAP_TLR;
1010 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1011 }
1012 else
1013 {
1014 if (jtag_ntrst_delay)
1015 jtag_add_sleep(jtag_ntrst_delay * 1000);
1016 }
1017 }
1018
1019 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
1020 {
1021 jtag_command_t **last_cmd = jtag_get_last_command_p();
1022
1023 /* allocate memory for a new list member */
1024 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1025 (*last_cmd)->next = NULL;
1026 last_comand_pointer = &((*last_cmd)->next);
1027 (*last_cmd)->type = JTAG_RESET;
1028
1029 (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
1030 (*last_cmd)->cmd.reset->trst = req_trst;
1031 (*last_cmd)->cmd.reset->srst = req_srst;
1032
1033
1034 return ERROR_OK;
1035 }
1036
1037 void jtag_add_end_state(enum tap_state state)
1038 {
1039 cmd_queue_end_state = state;
1040 if ((cmd_queue_end_state == TAP_SD)||(cmd_queue_end_state == TAP_SD))
1041 {
1042 LOG_ERROR("BUG: TAP_SD/SI can't be end state. Calling code should use a larger scan field");
1043 }
1044 }
1045
1046 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1047 {
1048 jtag_command_t **last_cmd = jtag_get_last_command_p();
1049
1050 /* allocate memory for a new list member */
1051 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1052 (*last_cmd)->next = NULL;
1053 last_comand_pointer = &((*last_cmd)->next);
1054 (*last_cmd)->type = JTAG_SLEEP;
1055
1056 (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1057 (*last_cmd)->cmd.sleep->us = us;
1058
1059 return ERROR_OK;
1060 }
1061
1062 void jtag_add_sleep(u32 us)
1063 {
1064 int retval=interface_jtag_add_sleep(us);
1065 if (retval!=ERROR_OK)
1066 jtag_error=retval;
1067 return;
1068 }
1069
1070 int jtag_scan_size(scan_command_t *cmd)
1071 {
1072 int bit_count = 0;
1073 int i;
1074
1075 /* count bits in scan command */
1076 for (i = 0; i < cmd->num_fields; i++)
1077 {
1078 bit_count += cmd->fields[i].num_bits;
1079 }
1080
1081 return bit_count;
1082 }
1083
1084 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1085 {
1086 int bit_count = 0;
1087 int i;
1088
1089 bit_count = jtag_scan_size(cmd);
1090 *buffer = malloc(CEIL(bit_count, 8));
1091
1092 bit_count = 0;
1093
1094 for (i = 0; i < cmd->num_fields; i++)
1095 {
1096 if (cmd->fields[i].out_value)
1097 {
1098 #ifdef _DEBUG_JTAG_IO_
1099 char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1100 #endif
1101 buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1102 #ifdef _DEBUG_JTAG_IO_
1103 LOG_DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1104 free(char_buf);
1105 #endif
1106 }
1107
1108 bit_count += cmd->fields[i].num_bits;
1109 }
1110
1111 return bit_count;
1112
1113 }
1114
1115 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1116 {
1117 int i;
1118 int bit_count = 0;
1119 int retval;
1120
1121 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1122 retval = ERROR_OK;
1123
1124 for (i = 0; i < cmd->num_fields; i++)
1125 {
1126 /* if neither in_value nor in_handler
1127 * are specified we don't have to examine this field
1128 */
1129 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1130 {
1131 int num_bits = cmd->fields[i].num_bits;
1132 u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1133
1134 #ifdef _DEBUG_JTAG_IO_
1135 char *char_buf;
1136
1137 char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1138 LOG_DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1139 free(char_buf);
1140 #endif
1141
1142 if (cmd->fields[i].in_value)
1143 {
1144 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1145
1146 if (cmd->fields[i].in_handler)
1147 {
1148 if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1149 {
1150 LOG_WARNING("in_handler reported a failed check");
1151 retval = ERROR_JTAG_QUEUE_FAILED;
1152 }
1153 }
1154 }
1155
1156 /* no in_value specified, but a handler takes care of the scanned data */
1157 if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1158 {
1159 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1160 {
1161 /* We're going to call the error:handler later, but if the in_handler
1162 * reported an error we report this failure upstream
1163 */
1164 LOG_WARNING("in_handler reported a failed check");
1165 retval = ERROR_JTAG_QUEUE_FAILED;
1166 }
1167 }
1168
1169 free(captured);
1170 }
1171 bit_count += cmd->fields[i].num_bits;
1172 }
1173
1174 return retval;
1175 }
1176
1177 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1178 {
1179 int retval = ERROR_OK;
1180 int num_bits = field->num_bits;
1181
1182 int compare_failed = 0;
1183
1184 if (field->in_check_mask)
1185 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1186 else
1187 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1188
1189 if (compare_failed)
1190 {
1191 /* An error handler could have caught the failing check
1192 * only report a problem when there wasn't a handler, or if the handler
1193 * acknowledged the error
1194 */
1195 if (compare_failed)
1196 {
1197 char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1198 char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1199
1200 if (field->in_check_mask)
1201 {
1202 char *in_check_mask_char;
1203 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1204 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);
1205 free(in_check_mask_char);
1206 }
1207 else
1208 {
1209 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);
1210 }
1211
1212 free(captured_char);
1213 free(in_check_value_char);
1214
1215 retval = ERROR_JTAG_QUEUE_FAILED;
1216 }
1217
1218 }
1219 return retval;
1220 }
1221
1222 /*
1223 set up checking of this field using the in_handler. The values passed in must be valid until
1224 after jtag_execute() has completed.
1225 */
1226 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1227 {
1228 if (value)
1229 field->in_handler = jtag_check_value;
1230 else
1231 field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1232 field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
1233 field->in_check_value = value;
1234 field->in_check_mask = mask;
1235 }
1236
1237 enum scan_type jtag_scan_type(scan_command_t *cmd)
1238 {
1239 int i;
1240 int type = 0;
1241
1242 for (i = 0; i < cmd->num_fields; i++)
1243 {
1244 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1245 type |= SCAN_IN;
1246 if (cmd->fields[i].out_value)
1247 type |= SCAN_OUT;
1248 }
1249
1250 return type;
1251 }
1252
1253 int MINIDRIVER(interface_jtag_execute_queue)(void)
1254 {
1255 int retval;
1256
1257 retval = jtag->execute_queue();
1258
1259 cmd_queue_free();
1260
1261 jtag_command_queue = NULL;
1262 last_comand_pointer = &jtag_command_queue;
1263
1264 return retval;
1265 }
1266
1267 int jtag_execute_queue(void)
1268 {
1269 int retval=interface_jtag_execute_queue();
1270 if (retval==ERROR_OK)
1271 {
1272 retval=jtag_error;
1273 }
1274 jtag_error=ERROR_OK;
1275 return retval;
1276 }
1277
1278 int jtag_reset_callback(enum jtag_event event, void *priv)
1279 {
1280 jtag_device_t *device = priv;
1281
1282 LOG_DEBUG("-");
1283
1284 if (event == JTAG_TRST_ASSERTED)
1285 {
1286 buf_set_ones(device->cur_instr, device->ir_length);
1287 device->bypass = 1;
1288 }
1289
1290 return ERROR_OK;
1291 }
1292
1293 void jtag_sleep(u32 us)
1294 {
1295 usleep(us);
1296 }
1297
1298 /* Try to examine chain layout according to IEEE 1149.1 §12
1299 */
1300 int jtag_examine_chain()
1301 {
1302 jtag_device_t *device = jtag_devices;
1303 scan_field_t field;
1304 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1305 int i;
1306 int bit_count;
1307 int device_count = 0;
1308 u8 zero_check = 0x0;
1309 u8 one_check = 0xff;
1310
1311 field.device = 0;
1312 field.num_bits = sizeof(idcode_buffer) * 8;
1313 field.out_value = idcode_buffer;
1314 field.out_mask = NULL;
1315 field.in_value = idcode_buffer;
1316 field.in_check_value = NULL;
1317 field.in_check_mask = NULL;
1318 field.in_handler = NULL;
1319 field.in_handler_priv = NULL;
1320
1321 for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1322 {
1323 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1324 }
1325
1326 jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1327 jtag_execute_queue();
1328
1329 for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1330 {
1331 zero_check |= idcode_buffer[i];
1332 one_check &= idcode_buffer[i];
1333 }
1334
1335 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1336 if ((zero_check == 0x00) || (one_check == 0xff))
1337 {
1338 LOG_ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1339 return ERROR_JTAG_INIT_FAILED;
1340 }
1341
1342 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1343 {
1344 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1345 if ((idcode & 1) == 0)
1346 {
1347 /* LSB must not be 0, this indicates a device in bypass */
1348 device_count++;
1349
1350 bit_count += 1;
1351 }
1352 else
1353 {
1354 u32 manufacturer;
1355 u32 part;
1356 u32 version;
1357
1358 if (idcode == 0x000000FF)
1359 {
1360 /* End of chain (invalid manufacturer ID) */
1361 break;
1362 }
1363
1364 if (device)
1365 {
1366 device->idcode = idcode;
1367 device = device->next;
1368 }
1369 device_count++;
1370
1371 manufacturer = (idcode & 0xffe) >> 1;
1372 part = (idcode & 0xffff000) >> 12;
1373 version = (idcode & 0xf0000000) >> 28;
1374
1375 LOG_INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1376 idcode, manufacturer, part, version);
1377
1378 bit_count += 32;
1379 }
1380 }
1381
1382 /* see if number of discovered devices matches configuration */
1383 if (device_count != jtag_num_devices)
1384 {
1385 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1386 device_count, jtag_num_devices);
1387 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1388 return ERROR_JTAG_INIT_FAILED;
1389 }
1390
1391 return ERROR_OK;
1392 }
1393
1394 int jtag_validate_chain()
1395 {
1396 jtag_device_t *device = jtag_devices;
1397 int total_ir_length = 0;
1398 u8 *ir_test = NULL;
1399 scan_field_t field;
1400 int chain_pos = 0;
1401
1402 while (device)
1403 {
1404 total_ir_length += device->ir_length;
1405 device = device->next;
1406 }
1407
1408 total_ir_length += 2;
1409 ir_test = malloc(CEIL(total_ir_length, 8));
1410 buf_set_ones(ir_test, total_ir_length);
1411
1412 field.device = 0;
1413 field.num_bits = total_ir_length;
1414 field.out_value = ir_test;
1415 field.out_mask = NULL;
1416 field.in_value = ir_test;
1417 field.in_check_value = NULL;
1418 field.in_check_mask = NULL;
1419 field.in_handler = NULL;
1420 field.in_handler_priv = NULL;
1421
1422 jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1423 jtag_execute_queue();
1424
1425 device = jtag_devices;
1426 while (device)
1427 {
1428 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1429 {
1430 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1431 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1432 free(cbuf);
1433 free(ir_test);
1434 return ERROR_JTAG_INIT_FAILED;
1435 }
1436 chain_pos += device->ir_length;
1437 device = device->next;
1438 }
1439
1440 if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1441 {
1442 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1443 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1444 free(cbuf);
1445 free(ir_test);
1446 return ERROR_JTAG_INIT_FAILED;
1447 }
1448
1449 free(ir_test);
1450
1451 return ERROR_OK;
1452 }
1453
1454 int jtag_register_commands(struct command_context_s *cmd_ctx)
1455 {
1456 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1457 COMMAND_CONFIG, NULL);
1458 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1459 COMMAND_ANY, "set jtag speed (if supported) <reset speed> [<post reset speed, default value is reset speed>]");
1460 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1461 COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
1462 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1463 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1464 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1465 COMMAND_CONFIG, NULL);
1466 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1467 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1468 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1469 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1470
1471 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1472 COMMAND_EXEC, "print current scan chain configuration");
1473
1474 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1475 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1476 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1477 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1478 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1479 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1480 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1481 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1482 register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1483 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1484
1485 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1486 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1487 return ERROR_OK;
1488 }
1489
1490 int jtag_interface_init(struct command_context_s *cmd_ctx)
1491 {
1492 if (jtag)
1493 return ERROR_OK;
1494
1495 if (!jtag_interface)
1496 {
1497 /* nothing was previously specified by "interface" command */
1498 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1499 return ERROR_JTAG_INVALID_INTERFACE;
1500 }
1501 if(hasKHz)
1502 {
1503 /*stay on "reset speed"*/
1504 if (jtag_interface->khz(speed1, &speed1) == ERROR_OK)
1505 jtag_speed = speed1;
1506 if (jtag_interface->khz(speed2, &speed2) == ERROR_OK)
1507 jtag_speed_post_reset = speed2;
1508 hasKHz = 0;
1509 }
1510
1511 if (jtag_interface->init() != ERROR_OK)
1512 return ERROR_JTAG_INIT_FAILED;
1513
1514
1515
1516 jtag = jtag_interface;
1517 return ERROR_OK;
1518 }
1519
1520 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1521 {
1522 int validate_tries = 0;
1523 jtag_device_t *device;
1524 int retval;
1525
1526 LOG_DEBUG("Init JTAG chain");
1527
1528 device = jtag_devices;
1529 jtag_ir_scan_size = 0;
1530 jtag_num_devices = 0;
1531 while (device != NULL)
1532 {
1533 jtag_ir_scan_size += device->ir_length;
1534 jtag_num_devices++;
1535 device = device->next;
1536 }
1537
1538 jtag_add_tlr();
1539 if ((retval=jtag_execute_queue())!=ERROR_OK)
1540 return retval;
1541
1542 /* examine chain first, as this could discover the real chain layout */
1543 if (jtag_examine_chain() != ERROR_OK)
1544 {
1545 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1546 }
1547
1548 while (jtag_validate_chain() != ERROR_OK)
1549 {
1550 validate_tries++;
1551
1552 if (validate_tries > 5)
1553 {
1554 LOG_ERROR("Could not validate JTAG chain, exit");
1555 return ERROR_JTAG_INVALID_INTERFACE;
1556 }
1557 usleep(10000);
1558 }
1559
1560 return ERROR_OK;
1561 }
1562
1563 int jtag_init_reset(struct command_context_s *cmd_ctx)
1564 {
1565 int retval;
1566
1567 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1568 return retval;
1569
1570 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / tms");
1571
1572 /* Reset can happen after a power cycle.
1573 *
1574 * Ideally we would only assert TRST or run tms before the target reset.
1575 *
1576 * However w/srst_pulls_trst, trst is asserted together with the target
1577 * reset whether we want it or not.
1578 *
1579 * NB! Some targets have JTAG circuitry disabled until a
1580 * trst & srst has been asserted.
1581 *
1582 * NB! here we assume nsrst/ntrst delay are sufficient!
1583 *
1584 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1585 *
1586 */
1587 jtag_add_reset(1, 0); /* TMS or TRST */
1588 if (jtag_reset_config & RESET_HAS_SRST)
1589 {
1590 jtag_add_reset(1, 1);
1591 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1592 jtag_add_reset(0, 1);
1593 }
1594 jtag_add_reset(0, 0);
1595 if ((retval = jtag_execute_queue()) != ERROR_OK)
1596 return retval;
1597
1598 /* Check that we can communication on the JTAG chain + eventually we want to
1599 * be able to perform enumeration only after OpenOCD has started
1600 * telnet and GDB server
1601 *
1602 * That would allow users to more easily perform any magic they need to before
1603 * reset happens.
1604 */
1605 return jtag_init_inner(cmd_ctx);
1606 }
1607
1608 int jtag_init(struct command_context_s *cmd_ctx)
1609 {
1610 int retval;
1611 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1612 return retval;
1613 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1614 {
1615 return ERROR_OK;
1616 }
1617 return jtag_init_reset(cmd_ctx);
1618 }
1619
1620
1621 static int default_khz(int khz, int *jtag_speed)
1622 {
1623 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1624 return ERROR_FAIL;
1625 }
1626
1627 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1628 {
1629 int i;
1630
1631 /* check whether the interface is already configured */
1632 if (jtag_interface)
1633 {
1634 LOG_WARNING("Interface already configured, ignoring");
1635 return ERROR_OK;
1636 }
1637
1638 /* interface name is a mandatory argument */
1639 if (argc < 1 || args[0][0] == '\0')
1640 {
1641 return ERROR_COMMAND_SYNTAX_ERROR;
1642 }
1643
1644 for (i=0; jtag_interfaces[i]; i++)
1645 {
1646 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1647 {
1648 if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1649 exit(-1);
1650
1651 jtag_interface = jtag_interfaces[i];
1652
1653 if (jtag_interface->khz == NULL)
1654 {
1655 jtag_interface->khz = default_khz;
1656 }
1657 return ERROR_OK;
1658 }
1659 }
1660
1661 /* no valid interface was found (i.e. the configuration option,
1662 * didn't match one of the compiled-in interfaces
1663 */
1664 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1665 LOG_ERROR("compiled-in jtag interfaces:");
1666 for (i = 0; jtag_interfaces[i]; i++)
1667 {
1668 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1669 }
1670
1671 return ERROR_JTAG_INVALID_INTERFACE;
1672 }
1673
1674 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1675 {
1676 jtag_device_t **last_device_p = &jtag_devices;
1677
1678 if (*last_device_p)
1679 {
1680 while ((*last_device_p)->next)
1681 last_device_p = &((*last_device_p)->next);
1682 last_device_p = &((*last_device_p)->next);
1683 }
1684
1685 if (argc < 3)
1686 return ERROR_OK;
1687
1688 *last_device_p = malloc(sizeof(jtag_device_t));
1689 (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1690
1691 (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1692 buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1693 (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1694 buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1695
1696 (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1697 (*last_device_p)->bypass = 1;
1698 buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1699
1700 (*last_device_p)->next = NULL;
1701
1702 jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1703
1704 jtag_num_devices++;
1705
1706 return ERROR_OK;
1707 }
1708
1709 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1710 {
1711 jtag_device_t *device = jtag_devices;
1712 int device_count = 0;
1713
1714 while (device)
1715 {
1716 u32 expected, expected_mask, cur_instr;
1717 expected = buf_get_u32(device->expected, 0, device->ir_length);
1718 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1719 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1720 command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);
1721 device = device->next;
1722 device_count++;
1723 }
1724
1725 return ERROR_OK;
1726 }
1727
1728 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1729 {
1730 if (argc < 1)
1731 return ERROR_COMMAND_SYNTAX_ERROR;
1732
1733 if (argc >= 1)
1734 {
1735 if (strcmp(args[0], "none") == 0)
1736 jtag_reset_config = RESET_NONE;
1737 else if (strcmp(args[0], "trst_only") == 0)
1738 jtag_reset_config = RESET_HAS_TRST;
1739 else if (strcmp(args[0], "srst_only") == 0)
1740 jtag_reset_config = RESET_HAS_SRST;
1741 else if (strcmp(args[0], "trst_and_srst") == 0)
1742 jtag_reset_config = RESET_TRST_AND_SRST;
1743 else
1744 {
1745 LOG_ERROR("invalid reset_config argument, defaulting to none");
1746 jtag_reset_config = RESET_NONE;
1747 return ERROR_INVALID_ARGUMENTS;
1748 }
1749 }
1750
1751 if (argc >= 2)
1752 {
1753 if (strcmp(args[1], "separate") == 0)
1754 {
1755 /* seperate reset lines - default */
1756 } else
1757 {
1758 if (strcmp(args[1], "srst_pulls_trst") == 0)
1759 jtag_reset_config |= RESET_SRST_PULLS_TRST;
1760 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1761 jtag_reset_config |= RESET_TRST_PULLS_SRST;
1762 else if (strcmp(args[1], "combined") == 0)
1763 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1764 else
1765 {
1766 LOG_ERROR("invalid reset_config argument, defaulting to none");
1767 jtag_reset_config = RESET_NONE;
1768 return ERROR_INVALID_ARGUMENTS;
1769 }
1770 }
1771 }
1772
1773 if (argc >= 3)
1774 {
1775 if (strcmp(args[2], "trst_open_drain") == 0)
1776 jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1777 else if (strcmp(args[2], "trst_push_pull") == 0)
1778 jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1779 else
1780 {
1781 LOG_ERROR("invalid reset_config argument, defaulting to none");
1782 jtag_reset_config = RESET_NONE;
1783 return ERROR_INVALID_ARGUMENTS;
1784 }
1785 }
1786
1787 if (argc >= 4)
1788 {
1789 if (strcmp(args[3], "srst_push_pull") == 0)
1790 jtag_reset_config |= RESET_SRST_PUSH_PULL;
1791 else if (strcmp(args[3], "srst_open_drain") == 0)
1792 jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1793 else
1794 {
1795 LOG_ERROR("invalid reset_config argument, defaulting to none");
1796 jtag_reset_config = RESET_NONE;
1797 return ERROR_INVALID_ARGUMENTS;
1798 }
1799 }
1800
1801 return ERROR_OK;
1802 }
1803
1804 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1805 {
1806 if (argc < 1)
1807 {
1808 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1809 exit(-1);
1810 }
1811 else
1812 {
1813 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1814 }
1815
1816 return ERROR_OK;
1817 }
1818
1819 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1820 {
1821 if (argc < 1)
1822 {
1823 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1824 exit(-1);
1825 }
1826 else
1827 {
1828 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1829 }
1830
1831 return ERROR_OK;
1832 }
1833
1834 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1835 {
1836 int cur_speed = 0;
1837
1838 if (argc != 0)
1839 {
1840 if ((argc<1) || (argc>2))
1841 return ERROR_COMMAND_SYNTAX_ERROR;
1842
1843 LOG_DEBUG("handle jtag speed");
1844
1845 if (argc >= 1)
1846 cur_speed = jtag_speed = jtag_speed_post_reset = strtoul(args[0], NULL, 0);
1847 if (argc == 2)
1848 cur_speed = jtag_speed_post_reset = strtoul(args[1], NULL, 0);
1849
1850 /* this command can be called during CONFIG,
1851 * in which case jtag isn't initialized */
1852 if (jtag)
1853 jtag->speed(cur_speed);
1854 }
1855 command_print(cmd_ctx, "jtag_speed: %d, %d", jtag_speed, jtag_speed_post_reset);
1856
1857 return ERROR_OK;
1858 }
1859
1860 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1861 {
1862 LOG_DEBUG("handle jtag khz");
1863
1864 if ((argc<1) || (argc>2))
1865 return ERROR_COMMAND_SYNTAX_ERROR;
1866
1867 if (argc >= 1)
1868 speed1 = speed2 = strtoul(args[0], NULL, 0);
1869 if (argc == 2)
1870 speed2 = strtoul(args[1], NULL, 0);
1871
1872 if (jtag != NULL)
1873 {
1874 int cur_speed = 0;
1875 LOG_DEBUG("have interface set up");
1876 int speed_div1, speed_div2;
1877 if (jtag->khz(speed1, &speed_div1)!=ERROR_OK)
1878 return ERROR_OK;
1879 if (jtag->khz(speed2, &speed_div2)!=ERROR_OK)
1880 return ERROR_OK;
1881
1882 if (argc >= 1)
1883 cur_speed = jtag_speed = jtag_speed_post_reset = speed_div1;
1884 if (argc == 2)
1885 cur_speed = jtag_speed_post_reset = speed_div2;
1886
1887 jtag->speed(cur_speed);
1888 } else
1889 {
1890 hasKHz = 1;
1891 }
1892
1893 return ERROR_OK;
1894 }
1895
1896
1897 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1898 {
1899 enum tap_state state;
1900
1901 if (argc < 1)
1902 {
1903 return ERROR_COMMAND_SYNTAX_ERROR;
1904 }
1905 else
1906 {
1907 for (state = 0; state < 16; state++)
1908 {
1909 if (strcmp(args[0], tap_state_strings[state]) == 0)
1910 {
1911 jtag_add_end_state(state);
1912 jtag_execute_queue();
1913 }
1914 }
1915 }
1916 command_print(cmd_ctx, "current endstate: %s", tap_state_strings[cmd_queue_end_state]);
1917
1918 return ERROR_OK;
1919 }
1920
1921 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1922 {
1923 int trst = -1;
1924 int srst = -1;
1925
1926 if (argc < 2)
1927 {
1928 return ERROR_COMMAND_SYNTAX_ERROR;
1929 }
1930
1931 if (args[0][0] == '1')
1932 trst = 1;
1933 else if (args[0][0] == '0')
1934 trst = 0;
1935 else
1936 {
1937 return ERROR_COMMAND_SYNTAX_ERROR;
1938 }
1939
1940 if (args[1][0] == '1')
1941 srst = 1;
1942 else if (args[1][0] == '0')
1943 srst = 0;
1944 else
1945 {
1946 return ERROR_COMMAND_SYNTAX_ERROR;
1947 }
1948
1949 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
1950 return ERROR_JTAG_INIT_FAILED;
1951
1952 jtag_add_reset(trst, srst);
1953 jtag_execute_queue();
1954
1955 return ERROR_OK;
1956 }
1957
1958 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1959 {
1960 if (argc < 1)
1961 {
1962 return ERROR_COMMAND_SYNTAX_ERROR;
1963 }
1964
1965 jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1966 jtag_execute_queue();
1967
1968 return ERROR_OK;
1969
1970 }
1971
1972
1973 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1974 {
1975 int i;
1976 scan_field_t *fields;
1977
1978 if ((argc < 2) || (argc % 2))
1979 {
1980 return ERROR_COMMAND_SYNTAX_ERROR;
1981 }
1982
1983 fields = malloc(sizeof(scan_field_t) * argc / 2);
1984
1985 for (i = 0; i < argc / 2; i++)
1986 {
1987 int device = strtoul(args[i*2], NULL, 0);
1988 int field_size = jtag_get_device(device)->ir_length;
1989 fields[i].device = device;
1990 fields[i].out_value = malloc(CEIL(field_size, 8));
1991 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1992 fields[i].out_mask = NULL;
1993 fields[i].in_value = NULL;
1994 fields[i].in_check_mask = NULL;
1995 fields[i].in_handler = NULL;
1996 fields[i].in_handler_priv = NULL;
1997 }
1998
1999 jtag_add_ir_scan(argc / 2, fields, -1);
2000 jtag_execute_queue();
2001
2002 for (i = 0; i < argc / 2; i++)
2003 free(fields[i].out_value);
2004
2005 free (fields);
2006
2007 return ERROR_OK;
2008 }
2009
2010 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2011 {
2012 scan_field_t *fields;
2013 int num_fields = 0;
2014 int field_count = 0;
2015 var_t *var;
2016 int i, j;
2017
2018 if ((argc < 2) || (argc % 2))
2019 {
2020 return ERROR_COMMAND_SYNTAX_ERROR;
2021 }
2022
2023 for (i = 0; i < argc; i+=2)
2024 {
2025 var = get_var_by_namenum(args[i+1]);
2026 if (var)
2027 {
2028 num_fields += var->num_fields;
2029 }
2030 else
2031 {
2032 command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
2033 return ERROR_OK;
2034 }
2035 }
2036
2037 fields = malloc(sizeof(scan_field_t) * num_fields);
2038
2039 for (i = 0; i < argc; i+=2)
2040 {
2041 var = get_var_by_namenum(args[i+1]);
2042
2043 for (j = 0; j < var->num_fields; j++)
2044 {
2045 fields[field_count].device = strtol(args[i], NULL, 0);
2046 fields[field_count].num_bits = var->fields[j].num_bits;
2047 fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
2048 buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
2049 fields[field_count].out_mask = NULL;
2050 fields[field_count].in_value = fields[field_count].out_value;
2051 fields[field_count].in_check_mask = NULL;
2052 fields[field_count].in_check_value = NULL;
2053 fields[field_count].in_handler = field_le_to_host;
2054 fields[field_count++].in_handler_priv = &(var->fields[j]);
2055 }
2056 }
2057
2058 jtag_add_dr_scan(num_fields, fields, -1);
2059 jtag_execute_queue();
2060
2061 for (i = 0; i < argc / 2; i++)
2062 free(fields[i].out_value);
2063
2064 free(fields);
2065
2066 return ERROR_OK;
2067 }
2068
2069 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2070 {
2071 if (argc == 1)
2072 {
2073 if (strcmp(args[0], "enable") == 0)
2074 {
2075 jtag_verify_capture_ir = 1;
2076 }
2077 else if (strcmp(args[0], "disable") == 0)
2078 {
2079 jtag_verify_capture_ir = 0;
2080 } else
2081 {
2082 return ERROR_COMMAND_SYNTAX_ERROR;
2083 }
2084 } else if (argc != 0)
2085 {
2086 return ERROR_COMMAND_SYNTAX_ERROR;
2087 }
2088
2089 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2090
2091 return ERROR_OK;
2092 }
Open On-Chip Debugger

Linking to existing account procedure

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

SSH host keys fingerprints

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