73acb6a09ecbb47a7658e77fedb5e0d7c3788ab2
[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
38 /* note that this is not marked as static as it must be available from outside jtag.c for those
39 that implement the jtag_xxx() minidriver layer
40 */
41 int jtag_error=ERROR_OK;
42
43
44 char* tap_state_strings[16] =
45 {
46 "tlr",
47 "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
48 "rti",
49 "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
50 };
51
52 typedef struct cmd_queue_page_s
53 {
54 void *address;
55 size_t used;
56 struct cmd_queue_page_s *next;
57 } cmd_queue_page_t;
58
59 #define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
60 static cmd_queue_page_t *cmd_queue_pages = NULL;
61
62 /* tap_move[i][j]: tap movement command to go from state i to state j
63 * 0: Test-Logic-Reset
64 * 1: Run-Test/Idle
65 * 2: Shift-DR
66 * 3: Pause-DR
67 * 4: Shift-IR
68 * 5: Pause-IR
69 *
70 * SD->SD and SI->SI have to be caught in interface specific code
71 */
72 u8 tap_move[6][6] =
73 {
74 /* TLR RTI SD PD SI PI */
75 {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
76 {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
77 {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
78 {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
79 {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
80 {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
81 };
82
83 int tap_move_map[16] = {
84 0, -1, -1, 2, -1, 3, -1, -1,
85 1, -1, -1, 4, -1, 5, -1, -1
86 };
87
88 tap_transition_t tap_transitions[16] =
89 {
90 {TAP_TLR, TAP_RTI}, /* TLR */
91 {TAP_SIS, TAP_CD}, /* SDS */
92 {TAP_E1D, TAP_SD}, /* CD */
93 {TAP_E1D, TAP_SD}, /* SD */
94 {TAP_UD, TAP_PD}, /* E1D */
95 {TAP_E2D, TAP_PD}, /* PD */
96 {TAP_UD, TAP_SD}, /* E2D */
97 {TAP_SDS, TAP_RTI}, /* UD */
98 {TAP_SDS, TAP_RTI}, /* RTI */
99 {TAP_TLR, TAP_CI}, /* SIS */
100 {TAP_E1I, TAP_SI}, /* CI */
101 {TAP_E1I, TAP_SI}, /* SI */
102 {TAP_UI, TAP_PI}, /* E1I */
103 {TAP_E2I, TAP_PI}, /* PI */
104 {TAP_UI, TAP_SI}, /* E2I */
105 {TAP_SDS, TAP_RTI} /* UI */
106 };
107
108 char* jtag_event_strings[] =
109 {
110 "SRST asserted",
111 "TRST asserted",
112 "SRST released",
113 "TRST released"
114 };
115
116 enum tap_state end_state = TAP_TLR;
117 enum tap_state cur_state = TAP_TLR;
118 int jtag_trst = 0;
119 int jtag_srst = 0;
120
121 jtag_command_t *jtag_command_queue = NULL;
122 jtag_command_t **last_comand_pointer = &jtag_command_queue;
123 jtag_device_t *jtag_devices = NULL;
124 int jtag_num_devices = 0;
125 int jtag_ir_scan_size = 0;
126 enum reset_types jtag_reset_config = RESET_NONE;
127 enum tap_state cmd_queue_end_state = TAP_TLR;
128 enum tap_state cmd_queue_cur_state = TAP_TLR;
129
130 int jtag_verify_capture_ir = 1;
131
132 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
133 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
134 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
135
136 /* maximum number of JTAG devices expected in the chain
137 */
138 #define JTAG_MAX_CHAIN_SIZE 20
139
140 /* callbacks to inform high-level handlers about JTAG state changes */
141 jtag_event_callback_t *jtag_event_callbacks;
142
143 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
144 */
145 #if BUILD_PARPORT == 1
146 extern jtag_interface_t parport_interface;
147 #endif
148
149 #if BUILD_FT2232_FTD2XX == 1
150 extern jtag_interface_t ft2232_interface;
151 #endif
152
153 #if BUILD_FT2232_LIBFTDI == 1
154 extern jtag_interface_t ft2232_interface;
155 #endif
156
157 #if BUILD_AMTJTAGACCEL == 1
158 extern jtag_interface_t amt_jtagaccel_interface;
159 #endif
160
161 #if BUILD_EP93XX == 1
162 extern jtag_interface_t ep93xx_interface;
163 #endif
164
165 #if BUILD_AT91RM9200 == 1
166 extern jtag_interface_t at91rm9200_interface;
167 #endif
168
169 #if BUILD_GW16012 == 1
170 extern jtag_interface_t gw16012_interface;
171 #endif
172
173 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
174 extern jtag_interface_t presto_interface;
175 #endif
176
177 #if BUILD_USBPROG == 1
178 extern jtag_interface_t usbprog_interface;
179 #endif
180
181 jtag_interface_t *jtag_interfaces[] = {
182 #if BUILD_PARPORT == 1
183 &parport_interface,
184 #endif
185 #if BUILD_FT2232_FTD2XX == 1
186 &ft2232_interface,
187 #endif
188 #if BUILD_FT2232_LIBFTDI == 1
189 &ft2232_interface,
190 #endif
191 #if BUILD_AMTJTAGACCEL == 1
192 &amt_jtagaccel_interface,
193 #endif
194 #if BUILD_EP93XX == 1
195 &ep93xx_interface,
196 #endif
197 #if BUILD_AT91RM9200 == 1
198 &at91rm9200_interface,
199 #endif
200 #if BUILD_GW16012 == 1
201 &gw16012_interface,
202 #endif
203 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
204 &presto_interface,
205 #endif
206 #if BUILD_USBPROG == 1
207 &usbprog_interface,
208 #endif
209 NULL,
210 };
211
212 jtag_interface_t *jtag = NULL;
213
214 /* configuration */
215 jtag_interface_t *jtag_interface = NULL;
216 int jtag_speed = 0;
217
218
219 /* forward declarations */
220 int jtag_add_statemove(enum tap_state endstate);
221 int jtag_add_pathmove(int num_states, enum tap_state *path);
222 int jtag_add_runtest(int num_cycles, enum tap_state endstate);
223 int jtag_add_reset(int trst, int srst);
224 int jtag_add_end_state(enum tap_state endstate);
225 int jtag_add_sleep(u32 us);
226 int jtag_execute_queue(void);
227 int jtag_cancel_queue(void);
228
229 /* jtag commands */
230 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
231 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
232 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
233 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
234 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
235 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
236
237 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
238
239 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
240 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
241 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
242 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
243 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
244 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
245
246 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
247
248 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
249 {
250 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
251
252 if (callback == NULL)
253 {
254 return ERROR_INVALID_ARGUMENTS;
255 }
256
257 if (*callbacks_p)
258 {
259 while ((*callbacks_p)->next)
260 callbacks_p = &((*callbacks_p)->next);
261 callbacks_p = &((*callbacks_p)->next);
262 }
263
264 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
265 (*callbacks_p)->callback = callback;
266 (*callbacks_p)->priv = priv;
267 (*callbacks_p)->next = NULL;
268
269 return ERROR_OK;
270 }
271
272 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
273 {
274 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
275
276 if (callback == NULL)
277 {
278 return ERROR_INVALID_ARGUMENTS;
279 }
280
281 while (*callbacks_p)
282 {
283 jtag_event_callback_t **next = &((*callbacks_p)->next);
284 if ((*callbacks_p)->callback == callback)
285 {
286 free(*callbacks_p);
287 *callbacks_p = *next;
288 }
289 callbacks_p = next;
290 }
291
292 return ERROR_OK;
293 }
294
295 int jtag_call_event_callbacks(enum jtag_event event)
296 {
297 jtag_event_callback_t *callback = jtag_event_callbacks;
298
299 DEBUG("jtag event: %s", jtag_event_strings[event]);
300
301 while (callback)
302 {
303 callback->callback(event, callback->priv);
304 callback = callback->next;
305 }
306
307 return ERROR_OK;
308 }
309
310 /* returns a pointer to the pointer of the last command in queue
311 * this may be a pointer to the root pointer (jtag_command_queue)
312 * or to the next member of the last but one command
313 */
314 jtag_command_t** jtag_get_last_command_p(void)
315 {
316 /* jtag_command_t *cmd = jtag_command_queue;
317
318 if (cmd)
319 while (cmd->next)
320 cmd = cmd->next;
321 else
322 return &jtag_command_queue;
323
324 return &cmd->next;*/
325
326 return last_comand_pointer;
327 }
328
329 /* returns a pointer to the n-th device in the scan chain */
330 jtag_device_t* jtag_get_device(int num)
331 {
332 jtag_device_t *device = jtag_devices;
333 int i = 0;
334
335 while (device)
336 {
337 if (num == i)
338 return device;
339 device = device->next;
340 i++;
341 }
342
343 ERROR("jtag device number %d not defined", num);
344 exit(-1);
345 }
346
347 void* cmd_queue_alloc(size_t size)
348 {
349 cmd_queue_page_t **p_page = &cmd_queue_pages;
350 int offset;
351
352 if (*p_page)
353 {
354 while ((*p_page)->next)
355 p_page = &((*p_page)->next);
356 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
357 p_page = &((*p_page)->next);
358 }
359
360 if (!*p_page)
361 {
362 *p_page = malloc(sizeof(cmd_queue_page_t));
363 (*p_page)->used = 0;
364 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
365 (*p_page)->next = NULL;
366 }
367
368 offset = (*p_page)->used;
369 (*p_page)->used += size;
370
371 u8 *t=(u8 *)((*p_page)->address);
372 return t + offset;
373 }
374
375 void cmd_queue_free()
376 {
377 cmd_queue_page_t *page = cmd_queue_pages;
378
379 while (page)
380 {
381 cmd_queue_page_t *last = page;
382 free(page->address);
383 page = page->next;
384 free(last);
385 }
386
387 cmd_queue_pages = NULL;
388 }
389
390 int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
391 {
392 if (jtag_trst == 1)
393 {
394 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
395 jtag_error=ERROR_JTAG_TRST_ASSERTED;
396 return ERROR_JTAG_TRST_ASSERTED;
397 }
398
399 if (state != -1)
400 cmd_queue_end_state = state;
401
402 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
403 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
404
405 if (cmd_queue_end_state == TAP_TLR)
406 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
407
408 cmd_queue_cur_state = cmd_queue_end_state;
409
410 int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
411 if (retval!=ERROR_OK)
412 jtag_error=retval;
413 return retval;
414 }
415
416 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
417 {
418 jtag_command_t **last_cmd;
419 jtag_device_t *device;
420 int i, j;
421 int scan_size = 0;
422
423
424 last_cmd = jtag_get_last_command_p();
425
426 /* allocate memory for a new list member */
427 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
428 (*last_cmd)->next = NULL;
429 last_comand_pointer = &((*last_cmd)->next);
430 (*last_cmd)->type = JTAG_SCAN;
431
432 /* allocate memory for ir scan command */
433 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
434 (*last_cmd)->cmd.scan->ir_scan = 1;
435 (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
436 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
437 (*last_cmd)->cmd.scan->end_state = state;
438
439 for (i = 0; i < jtag_num_devices; i++)
440 {
441 int found = 0;
442 device = jtag_get_device(i);
443 scan_size = device->ir_length;
444 (*last_cmd)->cmd.scan->fields[i].device = i;
445 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
446 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
447 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
448
449 /* search the list */
450 for (j = 0; j < num_fields; j++)
451 {
452 if (i == fields[j].device)
453 {
454 found = 1;
455 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
456 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
457
458 if (jtag_verify_capture_ir)
459 {
460 if (fields[j].in_handler==NULL)
461 {
462 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
463 } else
464 {
465 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
466 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
467 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
468 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
469 }
470 }
471
472 device->bypass = 0;
473 break;
474 }
475 }
476
477 if (!found)
478 {
479 /* if a device isn't listed, set it to BYPASS */
480 (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
481 (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
482 device->bypass = 1;
483
484 }
485
486 /* update device information */
487 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
488 }
489
490 return ERROR_OK;
491 }
492
493 int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
494 {
495 if (jtag_trst == 1)
496 {
497 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
498 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
499 }
500
501 if (state != -1)
502 cmd_queue_end_state = state;
503
504 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
505 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
506
507 if (cmd_queue_end_state == TAP_TLR)
508 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
509
510 cmd_queue_cur_state = cmd_queue_end_state;
511
512 return interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
513 }
514
515 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
516 {
517 int i;
518 jtag_command_t **last_cmd;
519
520 last_cmd = jtag_get_last_command_p();
521
522 /* allocate memory for a new list member */
523 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
524 (*last_cmd)->next = NULL;
525 last_comand_pointer = &((*last_cmd)->next);
526 (*last_cmd)->type = JTAG_SCAN;
527
528 /* allocate memory for ir scan command */
529 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
530 (*last_cmd)->cmd.scan->ir_scan = 1;
531 (*last_cmd)->cmd.scan->num_fields = num_fields;
532 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
533 (*last_cmd)->cmd.scan->end_state = state;
534
535 for (i = 0; i < num_fields; i++)
536 {
537 int num_bits = fields[i].num_bits;
538 int num_bytes = CEIL(fields[i].num_bits, 8);
539 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
540 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
541 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
542 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
543 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
544 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
545 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
546 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
547 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
548 }
549 return ERROR_OK;
550 }
551
552 int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
553 {
554 if (jtag_trst == 1)
555 {
556 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
557 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
558 }
559
560 if (state != -1)
561 cmd_queue_end_state = state;
562
563 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
564 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
565
566 if (cmd_queue_end_state == TAP_TLR)
567 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
568
569 cmd_queue_cur_state = cmd_queue_end_state;
570
571 return interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
572 }
573
574 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
575 {
576 int i, j;
577 int bypass_devices = 0;
578 int field_count = 0;
579 int scan_size;
580
581 jtag_command_t **last_cmd = jtag_get_last_command_p();
582 jtag_device_t *device = jtag_devices;
583
584 /* count devices in bypass */
585 while (device)
586 {
587 if (device->bypass)
588 bypass_devices++;
589 device = device->next;
590 }
591
592 /* allocate memory for a new list member */
593 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
594 last_comand_pointer = &((*last_cmd)->next);
595 (*last_cmd)->next = NULL;
596 (*last_cmd)->type = JTAG_SCAN;
597
598 /* allocate memory for dr scan command */
599 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
600 (*last_cmd)->cmd.scan->ir_scan = 0;
601 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
602 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
603 (*last_cmd)->cmd.scan->end_state = state;
604
605 for (i = 0; i < jtag_num_devices; i++)
606 {
607 int found = 0;
608 (*last_cmd)->cmd.scan->fields[field_count].device = i;
609
610 for (j = 0; j < num_fields; j++)
611 {
612 if (i == fields[j].device)
613 {
614 found = 1;
615 scan_size = fields[j].num_bits;
616 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
617 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
618 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
619 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
620 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
621 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
622 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
623 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
624 }
625 }
626 if (!found)
627 {
628 /* if a device isn't listed, the BYPASS register should be selected */
629 if (!jtag_get_device(i)->bypass)
630 {
631 ERROR("BUG: no scan data for a device not in BYPASS");
632 exit(-1);
633 }
634
635 /* program the scan field to 1 bit length, and ignore it's value */
636 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
637 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
638 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
639 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
640 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
641 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
642 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
643 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
644 }
645 else
646 {
647 /* if a device is listed, the BYPASS register must not be selected */
648 if (jtag_get_device(i)->bypass)
649 {
650 WARNING("scan data for a device in BYPASS");
651 }
652 }
653 }
654 return ERROR_OK;
655 }
656
657 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
658 int num_fields,
659 int *num_bits,
660 u32 *value,
661 enum tap_state end_state)
662 {
663 int i;
664 int field_count = 0;
665 int scan_size;
666 int bypass_devices = 0;
667
668 jtag_command_t **last_cmd = jtag_get_last_command_p();
669 jtag_device_t *device = jtag_devices;
670 /* count devices in bypass */
671 while (device)
672 {
673 if (device->bypass)
674 bypass_devices++;
675 device = device->next;
676 }
677
678 /* allocate memory for a new list member */
679 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
680 last_comand_pointer = &((*last_cmd)->next);
681 (*last_cmd)->next = NULL;
682 (*last_cmd)->type = JTAG_SCAN;
683
684 /* allocate memory for dr scan command */
685 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
686 (*last_cmd)->cmd.scan->ir_scan = 0;
687 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
688 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
689 (*last_cmd)->cmd.scan->end_state = end_state;
690
691 for (i = 0; i < jtag_num_devices; i++)
692 {
693 (*last_cmd)->cmd.scan->fields[field_count].device = i;
694
695 if (i == device_num)
696 {
697 int j;
698 #ifdef _DEBUG_JTAG_IO_
699 /* if a device is listed, the BYPASS register must not be selected */
700 if (jtag_get_device(i)->bypass)
701 {
702 ERROR("scan data for a device in BYPASS");
703 exit(-1);
704 }
705 #endif
706 for (j = 0; j < num_fields; j++)
707 {
708 char out_value[4];
709 scan_size = num_bits[j];
710 buf_set_u32(out_value, 0, scan_size, value[j]);
711 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
712 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
713 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
714 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
715 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
716 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
717 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
718 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
719 }
720 } else
721 {
722 #ifdef _DEBUG_JTAG_IO_
723 /* if a device isn't listed, the BYPASS register should be selected */
724 if (!jtag_get_device(i)->bypass)
725 {
726 ERROR("BUG: no scan data for a device not in BYPASS");
727 exit(-1);
728 }
729 #endif
730 /* program the scan field to 1 bit length, and ignore it's value */
731 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
732 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
733 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
734 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
735 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
736 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
737 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
738 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
739 }
740 }
741 }
742
743
744
745
746 int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
747 {
748 if (jtag_trst == 1)
749 {
750 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
751 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
752 }
753
754 if (state != -1)
755 cmd_queue_end_state = state;
756
757 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
758 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
759
760 if (cmd_queue_end_state == TAP_TLR)
761 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
762
763 cmd_queue_cur_state = cmd_queue_end_state;
764
765 return interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
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 int jtag_add_statemove(enum tap_state state)
804 {
805 if (jtag_trst == 1)
806 {
807 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
808 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
809 }
810
811 if (state != -1)
812 cmd_queue_end_state = state;
813
814 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
815 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
816
817 if (cmd_queue_end_state == TAP_TLR)
818 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
819
820 cmd_queue_cur_state = cmd_queue_end_state;
821
822 return interface_jtag_add_statemove(cmd_queue_end_state);
823 }
824
825 int MINIDRIVER(interface_jtag_add_statemove)(enum tap_state state)
826 {
827 jtag_command_t **last_cmd = jtag_get_last_command_p();
828
829 /* allocate memory for a new list member */
830 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
831 last_comand_pointer = &((*last_cmd)->next);
832 (*last_cmd)->next = NULL;
833 (*last_cmd)->type = JTAG_STATEMOVE;
834
835 (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
836 (*last_cmd)->cmd.statemove->end_state = state;
837
838
839 return ERROR_OK;
840 }
841
842 int jtag_add_pathmove(int num_states, enum tap_state *path)
843 {
844 if (jtag_trst == 1)
845 {
846 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
847 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
848 }
849
850 /* the last state has to be a stable state */
851 if (tap_move_map[path[num_states - 1]] == -1)
852 {
853 ERROR("TAP path doesn't finish in a stable state");
854 return jtag_error=ERROR_JTAG_NOT_IMPLEMENTED;
855 }
856
857 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
858 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
859
860 if (cmd_queue_end_state == TAP_TLR)
861 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
862
863 cmd_queue_cur_state = path[num_states - 1];
864
865 return interface_jtag_add_pathmove(num_states, path);
866 }
867
868
869 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
870 {
871 jtag_command_t **last_cmd = jtag_get_last_command_p();
872 int i;
873
874 /* allocate memory for a new list member */
875 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
876 last_comand_pointer = &((*last_cmd)->next);
877 (*last_cmd)->next = NULL;
878 (*last_cmd)->type = JTAG_PATHMOVE;
879
880 (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
881 (*last_cmd)->cmd.pathmove->num_states = num_states;
882 (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
883
884 for (i = 0; i < num_states; i++)
885 (*last_cmd)->cmd.pathmove->path[i] = path[i];
886
887 return ERROR_OK;
888 }
889
890 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
891 {
892 jtag_command_t **last_cmd = jtag_get_last_command_p();
893
894 /* allocate memory for a new list member */
895 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
896 (*last_cmd)->next = NULL;
897 last_comand_pointer = &((*last_cmd)->next);
898 (*last_cmd)->type = JTAG_RUNTEST;
899
900 (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
901 (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
902 (*last_cmd)->cmd.runtest->end_state = state;
903
904 return ERROR_OK;
905 }
906
907 int jtag_add_runtest(int num_cycles, enum tap_state state)
908 {
909 if (jtag_trst == 1)
910 {
911 jtag_error=ERROR_JTAG_QUEUE_FAILED;
912 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
913 return ERROR_JTAG_TRST_ASSERTED;
914 }
915
916 if (state != -1)
917 cmd_queue_end_state = state;
918
919 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
920 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
921
922 if (cmd_queue_end_state == TAP_TLR)
923 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
924
925 cmd_queue_cur_state = cmd_queue_end_state;
926
927 /* executed by sw or hw fifo */
928 return interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
929 }
930
931 int jtag_add_reset(int req_trst, int req_srst)
932 {
933 int trst_with_tms = 0;
934 int retval;
935
936 if (req_trst == -1)
937 req_trst = jtag_trst;
938
939 if (req_srst == -1)
940 req_srst = jtag_srst;
941
942 /* Make sure that jtag_reset_config allows the requested reset */
943 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
944 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
945 {
946 return jtag_error=ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
947 }
948
949 /* if TRST pulls SRST, we reset with TAP T-L-R */
950 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
951 {
952 req_trst = 0;
953 trst_with_tms = 1;
954 }
955
956 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
957 {
958 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
959 return jtag_error=ERROR_JTAG_RESET_CANT_SRST;
960 }
961
962 if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
963 {
964 req_trst = 0;
965 trst_with_tms = 1;
966 }
967
968 jtag_trst = req_trst;
969 jtag_srst = req_srst;
970
971 retval = interface_jtag_add_reset(req_trst, req_srst);
972 if (retval!=ERROR_OK)
973 {
974 jtag_error=retval;
975 return retval;
976 }
977
978 if (jtag_srst)
979 {
980 jtag_call_event_callbacks(JTAG_SRST_ASSERTED);
981 }
982 else
983 {
984 jtag_call_event_callbacks(JTAG_SRST_RELEASED);
985 if (jtag_nsrst_delay)
986 jtag_add_sleep(jtag_nsrst_delay * 1000);
987 }
988
989 if (trst_with_tms)
990 {
991 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
992 jtag_add_end_state(TAP_TLR);
993 jtag_add_statemove(TAP_TLR);
994
995 return ERROR_OK;
996 }
997
998 if (jtag_trst)
999 {
1000 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
1001 * and inform possible listeners about this
1002 */
1003 cmd_queue_cur_state = TAP_TLR;
1004 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1005 }
1006 else
1007 {
1008 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
1009 * but we might want to add a delay to give the TAP time to settle
1010 */
1011 if (jtag_ntrst_delay)
1012 jtag_add_sleep(jtag_ntrst_delay * 1000);
1013 }
1014
1015 return retval;
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 int MINIDRIVER(interface_jtag_add_end_state)(enum tap_state state)
1038 {
1039 jtag_command_t **last_cmd = jtag_get_last_command_p();
1040
1041 /* allocate memory for a new list member */
1042 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1043 (*last_cmd)->next = NULL;
1044 last_comand_pointer = &((*last_cmd)->next);
1045 (*last_cmd)->type = JTAG_END_STATE;
1046
1047 (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));
1048 (*last_cmd)->cmd.end_state->end_state = state;
1049
1050 return ERROR_OK;
1051 }
1052
1053 int jtag_add_end_state(enum tap_state state)
1054 {
1055 if (state != -1)
1056 cmd_queue_end_state = state;
1057 int retval = interface_jtag_add_end_state(cmd_queue_end_state);
1058 return retval;
1059 }
1060
1061 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1062 {
1063 jtag_command_t **last_cmd = jtag_get_last_command_p();
1064
1065 /* allocate memory for a new list member */
1066 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1067 (*last_cmd)->next = NULL;
1068 last_comand_pointer = &((*last_cmd)->next);
1069 (*last_cmd)->type = JTAG_SLEEP;
1070
1071 (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1072 (*last_cmd)->cmd.sleep->us = us;
1073
1074 return ERROR_OK;
1075 }
1076
1077 int jtag_add_sleep(u32 us)
1078 {
1079 return interface_jtag_add_sleep(us);
1080 }
1081
1082 int jtag_scan_size(scan_command_t *cmd)
1083 {
1084 int bit_count = 0;
1085 int i;
1086
1087 /* count bits in scan command */
1088 for (i = 0; i < cmd->num_fields; i++)
1089 {
1090 bit_count += cmd->fields[i].num_bits;
1091 }
1092
1093 return bit_count;
1094 }
1095
1096 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1097 {
1098 int bit_count = 0;
1099 int i;
1100
1101 bit_count = jtag_scan_size(cmd);
1102 *buffer = malloc(CEIL(bit_count, 8));
1103
1104 bit_count = 0;
1105
1106 for (i = 0; i < cmd->num_fields; i++)
1107 {
1108 if (cmd->fields[i].out_value)
1109 {
1110 #ifdef _DEBUG_JTAG_IO_
1111 char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1112 #endif
1113 buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1114 #ifdef _DEBUG_JTAG_IO_
1115 DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1116 free(char_buf);
1117 #endif
1118 }
1119
1120 bit_count += cmd->fields[i].num_bits;
1121 }
1122
1123 return bit_count;
1124
1125 }
1126
1127 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1128 {
1129 int i;
1130 int bit_count = 0;
1131 int retval;
1132
1133 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1134 retval = ERROR_OK;
1135
1136 for (i = 0; i < cmd->num_fields; i++)
1137 {
1138 /* if neither in_value nor in_handler
1139 * are specified we don't have to examine this field
1140 */
1141 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1142 {
1143 int num_bits = cmd->fields[i].num_bits;
1144 u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1145
1146 #ifdef _DEBUG_JTAG_IO_
1147 char *char_buf;
1148
1149 char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1150 DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1151 free(char_buf);
1152 #endif
1153
1154 if (cmd->fields[i].in_value)
1155 {
1156 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1157
1158 if (cmd->fields[i].in_handler)
1159 {
1160 if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1161 {
1162 WARNING("in_handler reported a failed check");
1163 retval = ERROR_JTAG_QUEUE_FAILED;
1164 }
1165 }
1166 }
1167
1168 /* no in_value specified, but a handler takes care of the scanned data */
1169 if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1170 {
1171 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1172 {
1173 /* We're going to call the error:handler later, but if the in_handler
1174 * reported an error we report this failure upstream
1175 */
1176 WARNING("in_handler reported a failed check");
1177 retval = ERROR_JTAG_QUEUE_FAILED;
1178 }
1179 }
1180
1181 free(captured);
1182 }
1183 bit_count += cmd->fields[i].num_bits;
1184 }
1185
1186 return retval;
1187 }
1188
1189 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1190 {
1191 int retval = ERROR_OK;
1192 int num_bits = field->num_bits;
1193
1194 int compare_failed = 0;
1195
1196 if (field->in_check_mask)
1197 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1198 else
1199 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1200
1201 if (compare_failed)
1202 {
1203 /* An error handler could have caught the failing check
1204 * only report a problem when there wasn't a handler, or if the handler
1205 * acknowledged the error
1206 */
1207 if (compare_failed)
1208 {
1209 char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1210 char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1211
1212 if (field->in_check_mask)
1213 {
1214 char *in_check_mask_char;
1215 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1216 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);
1217 free(in_check_mask_char);
1218 }
1219 else
1220 {
1221 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1222 }
1223
1224 free(captured_char);
1225 free(in_check_value_char);
1226
1227 retval = ERROR_JTAG_QUEUE_FAILED;
1228 }
1229
1230 }
1231 return retval;
1232 }
1233
1234 /*
1235 set up checking of this field using the in_handler. The values passed in must be valid until
1236 after jtag_execute() has completed.
1237 */
1238 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1239 {
1240 if (value)
1241 field->in_handler = jtag_check_value;
1242 else
1243 field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1244 field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
1245 field->in_check_value = value;
1246 field->in_check_mask = mask;
1247 }
1248
1249 enum scan_type jtag_scan_type(scan_command_t *cmd)
1250 {
1251 int i;
1252 int type = 0;
1253
1254 for (i = 0; i < cmd->num_fields; i++)
1255 {
1256 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1257 type |= SCAN_IN;
1258 if (cmd->fields[i].out_value)
1259 type |= SCAN_OUT;
1260 }
1261
1262 return type;
1263 }
1264
1265 int MINIDRIVER(interface_jtag_execute_queue)(void)
1266 {
1267 int retval;
1268
1269 retval = jtag->execute_queue();
1270
1271 cmd_queue_free();
1272
1273 jtag_command_queue = NULL;
1274 last_comand_pointer = &jtag_command_queue;
1275
1276 return retval;
1277 }
1278
1279 int jtag_execute_queue(void)
1280 {
1281 int retval=interface_jtag_execute_queue();
1282 if (retval==ERROR_OK)
1283 {
1284 retval=jtag_error;
1285 }
1286 jtag_error=ERROR_OK;
1287 return retval;
1288 }
1289
1290 int jtag_reset_callback(enum jtag_event event, void *priv)
1291 {
1292 jtag_device_t *device = priv;
1293
1294 DEBUG("-");
1295
1296 if (event == JTAG_TRST_ASSERTED)
1297 {
1298 buf_set_ones(device->cur_instr, device->ir_length);
1299 device->bypass = 1;
1300 }
1301
1302 return ERROR_OK;
1303 }
1304
1305 void jtag_sleep(u32 us)
1306 {
1307 usleep(us);
1308 }
1309
1310 /* Try to examine chain layout according to IEEE 1149.1 ยง12
1311 */
1312 int jtag_examine_chain()
1313 {
1314 jtag_device_t *device = jtag_devices;
1315 scan_field_t field;
1316 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1317 int i;
1318 int bit_count;
1319 int device_count = 0;
1320 u8 zero_check = 0x0;
1321 u8 one_check = 0xff;
1322
1323 field.device = 0;
1324 field.num_bits = sizeof(idcode_buffer) * 8;
1325 field.out_value = idcode_buffer;
1326 field.out_mask = NULL;
1327 field.in_value = idcode_buffer;
1328 field.in_check_value = NULL;
1329 field.in_check_mask = NULL;
1330 field.in_handler = NULL;
1331 field.in_handler_priv = NULL;
1332
1333 for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1334 {
1335 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1336 }
1337
1338 jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1339 jtag_execute_queue();
1340
1341 for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1342 {
1343 zero_check |= idcode_buffer[i];
1344 one_check &= idcode_buffer[i];
1345 }
1346
1347 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1348 if ((zero_check == 0x00) || (one_check == 0xff))
1349 {
1350 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1351 return ERROR_JTAG_INIT_FAILED;
1352 }
1353
1354 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1355 {
1356 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1357 if ((idcode & 1) == 0)
1358 {
1359 /* LSB must not be 0, this indicates a device in bypass */
1360 device_count++;
1361
1362 bit_count += 1;
1363 }
1364 else
1365 {
1366 u32 manufacturer;
1367 u32 part;
1368 u32 version;
1369
1370 if (idcode == 0x000000FF)
1371 {
1372 /* End of chain (invalid manufacturer ID) */
1373 break;
1374 }
1375
1376 if (device)
1377 {
1378 device->idcode = idcode;
1379 device = device->next;
1380 }
1381 device_count++;
1382
1383 manufacturer = (idcode & 0xffe) >> 1;
1384 part = (idcode & 0xffff000) >> 12;
1385 version = (idcode & 0xf0000000) >> 28;
1386
1387 INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1388 idcode, manufacturer, part, version);
1389
1390 bit_count += 32;
1391 }
1392 }
1393
1394 /* see if number of discovered devices matches configuration */
1395 if (device_count != jtag_num_devices)
1396 {
1397 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1398 device_count, jtag_num_devices);
1399 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1400 return ERROR_JTAG_INIT_FAILED;
1401 }
1402
1403 return ERROR_OK;
1404 }
1405
1406 int jtag_validate_chain()
1407 {
1408 jtag_device_t *device = jtag_devices;
1409 int total_ir_length = 0;
1410 u8 *ir_test = NULL;
1411 scan_field_t field;
1412 int chain_pos = 0;
1413
1414 while (device)
1415 {
1416 total_ir_length += device->ir_length;
1417 device = device->next;
1418 }
1419
1420 total_ir_length += 2;
1421 ir_test = malloc(CEIL(total_ir_length, 8));
1422 buf_set_ones(ir_test, total_ir_length);
1423
1424 field.device = 0;
1425 field.num_bits = total_ir_length;
1426 field.out_value = ir_test;
1427 field.out_mask = NULL;
1428 field.in_value = ir_test;
1429 field.in_check_value = NULL;
1430 field.in_check_mask = NULL;
1431 field.in_handler = NULL;
1432 field.in_handler_priv = NULL;
1433
1434 jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1435 jtag_execute_queue();
1436
1437 device = jtag_devices;
1438 while (device)
1439 {
1440 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1441 {
1442 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1443 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 chain_pos += device->ir_length;
1449 device = device->next;
1450 }
1451
1452 if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1453 {
1454 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1455 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1456 free(cbuf);
1457 free(ir_test);
1458 return ERROR_JTAG_INIT_FAILED;
1459 }
1460
1461 free(ir_test);
1462
1463 return ERROR_OK;
1464 }
1465
1466 int jtag_register_commands(struct command_context_s *cmd_ctx)
1467 {
1468 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1469 COMMAND_CONFIG, NULL);
1470 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1471 COMMAND_ANY, "set jtag speed (if supported) <speed>");
1472 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1473 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1474 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1475 COMMAND_CONFIG, NULL);
1476 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1477 COMMAND_CONFIG, NULL);
1478 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1479 COMMAND_CONFIG, NULL);
1480
1481 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1482 COMMAND_EXEC, "print current scan chain configuration");
1483
1484 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1485 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1486 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1487 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1488 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1489 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1490 register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
1491 COMMAND_EXEC, "move to current endstate or [tap_state]");
1492 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1493 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1494 register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1495 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1496
1497 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1498 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1499 return ERROR_OK;
1500 }
1501
1502 int jtag_interface_init(struct command_context_s *cmd_ctx)
1503 {
1504 if (!jtag_interface)
1505 {
1506 /* nothing was previously specified by "interface" command */
1507 ERROR("JTAG interface has to be specified, see \"interface\" command");
1508 return ERROR_JTAG_INVALID_INTERFACE;
1509 }
1510
1511 if (jtag_interface->init() != ERROR_OK)
1512 return ERROR_JTAG_INIT_FAILED;
1513
1514 jtag = jtag_interface;
1515 return ERROR_OK;
1516 }
1517
1518 int jtag_init(struct command_context_s *cmd_ctx)
1519 {
1520 int validate_tries = 0;
1521 jtag_device_t *device;
1522
1523 DEBUG("-");
1524
1525 if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1526 return ERROR_JTAG_INIT_FAILED;
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_statemove(TAP_TLR);
1539 jtag_execute_queue();
1540
1541 /* examine chain first, as this could discover the real chain layout */
1542 if (jtag_examine_chain() != ERROR_OK)
1543 {
1544 ERROR("trying to validate configured JTAG chain anyway...");
1545 }
1546
1547 while (jtag_validate_chain() != ERROR_OK)
1548 {
1549 validate_tries++;
1550 if (validate_tries > 5)
1551 {
1552 ERROR("Could not validate JTAG chain, exit");
1553 return ERROR_JTAG_INVALID_INTERFACE;
1554 }
1555 usleep(10000);
1556 }
1557
1558 return ERROR_OK;
1559 }
1560
1561 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1562 {
1563 int i;
1564
1565 /* check whether the interface is already configured */
1566 if (jtag_interface)
1567 {
1568 WARNING("Interface already configured, ignoring");
1569 return ERROR_OK;
1570 }
1571
1572 /* interface name is a mandatory argument */
1573 if (argc < 1 || args[0][0] == '\0')
1574 {
1575 return ERROR_COMMAND_SYNTAX_ERROR;
1576 }
1577
1578 for (i=0; jtag_interfaces[i]; i++)
1579 {
1580 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1581 {
1582 if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1583 exit(-1);
1584
1585 jtag_interface = jtag_interfaces[i];
1586 return ERROR_OK;
1587 }
1588 }
1589
1590 /* no valid interface was found (i.e. the configuration option,
1591 * didn't match one of the compiled-in interfaces
1592 */
1593 ERROR("No valid jtag interface found (%s)", args[0]);
1594 ERROR("compiled-in jtag interfaces:");
1595 for (i = 0; jtag_interfaces[i]; i++)
1596 {
1597 ERROR("%i: %s", i, jtag_interfaces[i]->name);
1598 }
1599
1600 return ERROR_JTAG_INVALID_INTERFACE;
1601 }
1602
1603 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1604 {
1605 jtag_device_t **last_device_p = &jtag_devices;
1606
1607 if (*last_device_p)
1608 {
1609 while ((*last_device_p)->next)
1610 last_device_p = &((*last_device_p)->next);
1611 last_device_p = &((*last_device_p)->next);
1612 }
1613
1614 if (argc < 3)
1615 return ERROR_OK;
1616
1617 *last_device_p = malloc(sizeof(jtag_device_t));
1618 (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1619
1620 (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1621 buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1622 (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1623 buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1624
1625 (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1626 (*last_device_p)->bypass = 1;
1627 buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1628
1629 (*last_device_p)->next = NULL;
1630
1631 jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1632
1633 jtag_num_devices++;
1634
1635 return ERROR_OK;
1636 }
1637
1638 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1639 {
1640 jtag_device_t *device = jtag_devices;
1641 int device_count = 0;
1642
1643 while (device)
1644 {
1645 u32 expected, expected_mask, cur_instr;
1646 expected = buf_get_u32(device->expected, 0, device->ir_length);
1647 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1648 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1649 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);
1650 device = device->next;
1651 device_count++;
1652 }
1653
1654 return ERROR_OK;
1655 }
1656
1657 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1658 {
1659 if (argc >= 1)
1660 {
1661 if (strcmp(args[0], "none") == 0)
1662 jtag_reset_config = RESET_NONE;
1663 else if (strcmp(args[0], "trst_only") == 0)
1664 jtag_reset_config = RESET_HAS_TRST;
1665 else if (strcmp(args[0], "srst_only") == 0)
1666 jtag_reset_config = RESET_HAS_SRST;
1667 else if (strcmp(args[0], "trst_and_srst") == 0)
1668 jtag_reset_config = RESET_TRST_AND_SRST;
1669 else
1670 {
1671 ERROR("invalid reset_config argument, defaulting to none");
1672 jtag_reset_config = RESET_NONE;
1673 return ERROR_INVALID_ARGUMENTS;
1674 }
1675 }
1676
1677 if (argc >= 2)
1678 {
1679 if (strcmp(args[1], "srst_pulls_trst") == 0)
1680 jtag_reset_config |= RESET_SRST_PULLS_TRST;
1681 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1682 jtag_reset_config |= RESET_TRST_PULLS_SRST;
1683 else if (strcmp(args[1], "combined") == 0)
1684 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1685 else if (strcmp(args[1], "separate") == 0)
1686 jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
1687 else
1688 {
1689 ERROR("invalid reset_config argument, defaulting to none");
1690 jtag_reset_config = RESET_NONE;
1691 return ERROR_INVALID_ARGUMENTS;
1692 }
1693 }
1694
1695 if (argc >= 3)
1696 {
1697 if (strcmp(args[2], "trst_open_drain") == 0)
1698 jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1699 else if (strcmp(args[2], "trst_push_pull") == 0)
1700 jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1701 else
1702 {
1703 ERROR("invalid reset_config argument, defaulting to none");
1704 jtag_reset_config = RESET_NONE;
1705 return ERROR_INVALID_ARGUMENTS;
1706 }
1707 }
1708
1709 if (argc >= 4)
1710 {
1711 if (strcmp(args[3], "srst_push_pull") == 0)
1712 jtag_reset_config |= RESET_SRST_PUSH_PULL;
1713 else if (strcmp(args[3], "srst_open_drain") == 0)
1714 jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1715 else
1716 {
1717 ERROR("invalid reset_config argument, defaulting to none");
1718 jtag_reset_config = RESET_NONE;
1719 return ERROR_INVALID_ARGUMENTS;
1720 }
1721 }
1722
1723 return ERROR_OK;
1724 }
1725
1726 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1727 {
1728 if (argc < 1)
1729 {
1730 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1731 exit(-1);
1732 }
1733 else
1734 {
1735 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1736 }
1737
1738 return ERROR_OK;
1739 }
1740
1741 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1742 {
1743 if (argc < 1)
1744 {
1745 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1746 exit(-1);
1747 }
1748 else
1749 {
1750 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1751 }
1752
1753 return ERROR_OK;
1754 }
1755
1756 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1757 {
1758 if (argc == 0)
1759 command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);
1760
1761 if (argc > 0)
1762 {
1763 /* this command can be called during CONFIG,
1764 * in which case jtag isn't initialized */
1765 if (jtag)
1766 jtag->speed(strtoul(args[0], NULL, 0));
1767 else
1768 jtag_speed = strtoul(args[0], NULL, 0);
1769 }
1770
1771 return ERROR_OK;
1772 }
1773
1774 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1775 {
1776 enum tap_state state;
1777
1778 if (argc < 1)
1779 {
1780 return ERROR_COMMAND_SYNTAX_ERROR;
1781 }
1782 else
1783 {
1784 for (state = 0; state < 16; state++)
1785 {
1786 if (strcmp(args[0], tap_state_strings[state]) == 0)
1787 {
1788 jtag_add_end_state(state);
1789 jtag_execute_queue();
1790 }
1791 }
1792 }
1793 command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1794
1795 return ERROR_OK;
1796 }
1797
1798 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1799 {
1800 int trst = -1;
1801 int srst = -1;
1802 int retval;
1803
1804 if (argc < 2)
1805 {
1806 return ERROR_COMMAND_SYNTAX_ERROR;
1807
1808 }
1809
1810 if (args[0][0] == '1')
1811 trst = 1;
1812 else if (args[0][0] == '0')
1813 trst = 0;
1814 else
1815 {
1816 return ERROR_COMMAND_SYNTAX_ERROR;
1817 }
1818
1819 if (args[1][0] == '1')
1820 srst = 1;
1821 else if (args[1][0] == '0')
1822 srst = 0;
1823 else
1824 {
1825 return ERROR_COMMAND_SYNTAX_ERROR;
1826 }
1827
1828 if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1829 return ERROR_JTAG_INIT_FAILED;
1830
1831 if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)
1832 {
1833 switch (retval)
1834 {
1835 case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:
1836 command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);
1837 break;
1838 case ERROR_JTAG_RESET_CANT_SRST:
1839 command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");
1840 break;
1841 default:
1842 command_print(cmd_ctx, "unknown error");
1843 }
1844 }
1845 jtag_execute_queue();
1846
1847 return ERROR_OK;
1848 }
1849
1850 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1851 {
1852 if (argc < 1)
1853 {
1854 return ERROR_COMMAND_SYNTAX_ERROR;
1855 }
1856
1857 jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1858 jtag_execute_queue();
1859
1860 return ERROR_OK;
1861
1862 }
1863
1864 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1865 {
1866 enum tap_state state;
1867
1868 state = -1;
1869 if (argc == 1)
1870 {
1871 for (state = 0; state < 16; state++)
1872 {
1873 if (strcmp(args[0], tap_state_strings[state]) == 0)
1874 {
1875 break;
1876 }
1877 }
1878 }
1879
1880 jtag_add_statemove(state);
1881 jtag_execute_queue();
1882
1883 return ERROR_OK;
1884
1885 }
1886
1887 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1888 {
1889 int i;
1890 scan_field_t *fields;
1891
1892 if ((argc < 2) || (argc % 2))
1893 {
1894 return ERROR_COMMAND_SYNTAX_ERROR;
1895 }
1896
1897 fields = malloc(sizeof(scan_field_t) * argc / 2);
1898
1899 for (i = 0; i < argc / 2; i++)
1900 {
1901 int device = strtoul(args[i*2], NULL, 0);
1902 int field_size = jtag_get_device(device)->ir_length;
1903 fields[i].device = device;
1904 fields[i].out_value = malloc(CEIL(field_size, 8));
1905 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1906 fields[i].out_mask = NULL;
1907 fields[i].in_value = NULL;
1908 fields[i].in_check_mask = NULL;
1909 fields[i].in_handler = NULL;
1910 fields[i].in_handler_priv = NULL;
1911 }
1912
1913 jtag_add_ir_scan(argc / 2, fields, -1);
1914 jtag_execute_queue();
1915
1916 for (i = 0; i < argc / 2; i++)
1917 free(fields[i].out_value);
1918
1919 free (fields);
1920
1921 return ERROR_OK;
1922 }
1923
1924 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1925 {
1926 scan_field_t *fields;
1927 int num_fields = 0;
1928 int field_count = 0;
1929 var_t *var;
1930 int i, j;
1931
1932 if ((argc < 2) || (argc % 2))
1933 {
1934 return ERROR_COMMAND_SYNTAX_ERROR;
1935 }
1936
1937 for (i = 0; i < argc; i+=2)
1938 {
1939 var = get_var_by_namenum(args[i+1]);
1940 if (var)
1941 {
1942 num_fields += var->num_fields;
1943 }
1944 else
1945 {
1946 command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1947 return ERROR_OK;
1948 }
1949 }
1950
1951 fields = malloc(sizeof(scan_field_t) * num_fields);
1952
1953 for (i = 0; i < argc; i+=2)
1954 {
1955 var = get_var_by_namenum(args[i+1]);
1956
1957 for (j = 0; j < var->num_fields; j++)
1958 {
1959 fields[field_count].device = strtol(args[i], NULL, 0);
1960 fields[field_count].num_bits = var->fields[j].num_bits;
1961 fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1962 buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1963 fields[field_count].out_mask = NULL;
1964 fields[field_count].in_value = fields[field_count].out_value;
1965 fields[field_count].in_check_mask = NULL;
1966 fields[field_count].in_check_value = NULL;
1967 fields[field_count].in_handler = field_le_to_host;
1968 fields[field_count++].in_handler_priv = &(var->fields[j]);
1969 }
1970 }
1971
1972 jtag_add_dr_scan(num_fields, fields, -1);
1973 jtag_execute_queue();
1974
1975 for (i = 0; i < argc / 2; i++)
1976 free(fields[i].out_value);
1977
1978 free(fields);
1979
1980 return ERROR_OK;
1981 }
1982
1983 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1984 {
1985 if (argc == 1)
1986 {
1987 if (strcmp(args[0], "enable") == 0)
1988 {
1989 jtag_verify_capture_ir = 1;
1990 }
1991 else if (strcmp(args[0], "disable") == 0)
1992 {
1993 jtag_verify_capture_ir = 0;
1994 } else
1995 {
1996 return ERROR_COMMAND_SYNTAX_ERROR;
1997 }
1998 } else if (argc != 0)
1999 {
2000 return ERROR_COMMAND_SYNTAX_ERROR;
2001 }
2002
2003 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2004
2005 return ERROR_OK;
2006 }