- This speeds up dcc arm7_9 bulk write a little bit and exercises the jtag_add_dr_out...
[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 #ifdef _DEBUG_JTAG_IO_
629 /* if a device isn't listed, the BYPASS register should be selected */
630 if (!jtag_get_device(i)->bypass)
631 {
632 ERROR("BUG: no scan data for a device not in BYPASS");
633 exit(-1);
634 }
635 #endif
636 /* program the scan field to 1 bit length, and ignore it's value */
637 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
638 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
639 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
640 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
641 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
642 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
643 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
644 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
645 }
646 else
647 {
648 #ifdef _DEBUG_JTAG_IO_
649 /* if a device is listed, the BYPASS register must not be selected */
650 if (jtag_get_device(i)->bypass)
651 {
652 WARNING("scan data for a device in BYPASS");
653 }
654 #endif
655 }
656 }
657 return ERROR_OK;
658 }
659
660 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
661 int num_fields,
662 int *num_bits,
663 u32 *value,
664 enum tap_state end_state)
665 {
666 int i;
667 int field_count = 0;
668 int scan_size;
669 int bypass_devices = 0;
670
671 jtag_command_t **last_cmd = jtag_get_last_command_p();
672 jtag_device_t *device = jtag_devices;
673 /* count devices in bypass */
674 while (device)
675 {
676 if (device->bypass)
677 bypass_devices++;
678 device = device->next;
679 }
680
681 /* allocate memory for a new list member */
682 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
683 last_comand_pointer = &((*last_cmd)->next);
684 (*last_cmd)->next = NULL;
685 (*last_cmd)->type = JTAG_SCAN;
686
687 /* allocate memory for dr scan command */
688 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
689 (*last_cmd)->cmd.scan->ir_scan = 0;
690 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
691 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
692 (*last_cmd)->cmd.scan->end_state = end_state;
693
694 for (i = 0; i < jtag_num_devices; i++)
695 {
696 (*last_cmd)->cmd.scan->fields[field_count].device = i;
697
698 if (i == device_num)
699 {
700 int j;
701 #ifdef _DEBUG_JTAG_IO_
702 /* if a device is listed, the BYPASS register must not be selected */
703 if (jtag_get_device(i)->bypass)
704 {
705 ERROR("scan data for a device in BYPASS");
706 exit(-1);
707 }
708 #endif
709 for (j = 0; j < num_fields; j++)
710 {
711 char out_value[4];
712 scan_size = num_bits[j];
713 buf_set_u32(out_value, 0, scan_size, value[j]);
714 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
715 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
716 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
717 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
718 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
719 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
720 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
721 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
722 }
723 } else
724 {
725 #ifdef _DEBUG_JTAG_IO_
726 /* if a device isn't listed, the BYPASS register should be selected */
727 if (!jtag_get_device(i)->bypass)
728 {
729 ERROR("BUG: no scan data for a device not in BYPASS");
730 exit(-1);
731 }
732 #endif
733 /* program the scan field to 1 bit length, and ignore it's value */
734 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
735 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
736 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
737 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
738 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
739 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
740 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
741 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
742 }
743 }
744 }
745
746
747
748
749 int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
750 {
751 if (jtag_trst == 1)
752 {
753 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
754 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
755 }
756
757 if (state != -1)
758 cmd_queue_end_state = state;
759
760 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
761 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
762
763 if (cmd_queue_end_state == TAP_TLR)
764 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
765
766 cmd_queue_cur_state = cmd_queue_end_state;
767
768 return interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
769 }
770
771 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
772 {
773 int i;
774 jtag_command_t **last_cmd = jtag_get_last_command_p();
775
776 /* allocate memory for a new list member */
777 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
778 last_comand_pointer = &((*last_cmd)->next);
779 (*last_cmd)->next = NULL;
780 (*last_cmd)->type = JTAG_SCAN;
781
782 /* allocate memory for scan command */
783 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
784 (*last_cmd)->cmd.scan->ir_scan = 0;
785 (*last_cmd)->cmd.scan->num_fields = num_fields;
786 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
787 (*last_cmd)->cmd.scan->end_state = state;
788
789 for (i = 0; i < num_fields; i++)
790 {
791 int num_bits = fields[i].num_bits;
792 int num_bytes = CEIL(fields[i].num_bits, 8);
793 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
794 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
795 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
796 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
797 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
798 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
799 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
800 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
801 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
802 }
803
804 return ERROR_OK;
805 }
806 int jtag_add_statemove(enum tap_state state)
807 {
808 if (jtag_trst == 1)
809 {
810 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
811 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
812 }
813
814 if (state != -1)
815 cmd_queue_end_state = state;
816
817 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
818 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
819
820 if (cmd_queue_end_state == TAP_TLR)
821 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
822
823 cmd_queue_cur_state = cmd_queue_end_state;
824
825 return interface_jtag_add_statemove(cmd_queue_end_state);
826 }
827
828 int MINIDRIVER(interface_jtag_add_statemove)(enum tap_state state)
829 {
830 jtag_command_t **last_cmd = jtag_get_last_command_p();
831
832 /* allocate memory for a new list member */
833 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
834 last_comand_pointer = &((*last_cmd)->next);
835 (*last_cmd)->next = NULL;
836 (*last_cmd)->type = JTAG_STATEMOVE;
837
838 (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
839 (*last_cmd)->cmd.statemove->end_state = state;
840
841
842 return ERROR_OK;
843 }
844
845 int jtag_add_pathmove(int num_states, enum tap_state *path)
846 {
847 if (jtag_trst == 1)
848 {
849 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
850 return jtag_error=ERROR_JTAG_TRST_ASSERTED;
851 }
852
853 /* the last state has to be a stable state */
854 if (tap_move_map[path[num_states - 1]] == -1)
855 {
856 ERROR("TAP path doesn't finish in a stable state");
857 return jtag_error=ERROR_JTAG_NOT_IMPLEMENTED;
858 }
859
860 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
861 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
862
863 if (cmd_queue_end_state == TAP_TLR)
864 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
865
866
867 enum tap_state cur_state=cmd_queue_cur_state;
868 int i;
869 for (i=0; i<num_states; i++)
870 {
871 if ((tap_transitions[cur_state].low != path[i])&&
872 (tap_transitions[cur_state].high != path[i]))
873 {
874 ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
875 exit(-1);
876 }
877 cur_state = path[i];
878 }
879
880 cmd_queue_cur_state = path[num_states - 1];
881
882 return interface_jtag_add_pathmove(num_states, path);
883 }
884
885
886 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
887 {
888 jtag_command_t **last_cmd = jtag_get_last_command_p();
889 int i;
890
891 /* allocate memory for a new list member */
892 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
893 last_comand_pointer = &((*last_cmd)->next);
894 (*last_cmd)->next = NULL;
895 (*last_cmd)->type = JTAG_PATHMOVE;
896
897 (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
898 (*last_cmd)->cmd.pathmove->num_states = num_states;
899 (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
900
901 for (i = 0; i < num_states; i++)
902 (*last_cmd)->cmd.pathmove->path[i] = path[i];
903
904 return ERROR_OK;
905 }
906
907 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
908 {
909 jtag_command_t **last_cmd = jtag_get_last_command_p();
910
911 /* allocate memory for a new list member */
912 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
913 (*last_cmd)->next = NULL;
914 last_comand_pointer = &((*last_cmd)->next);
915 (*last_cmd)->type = JTAG_RUNTEST;
916
917 (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
918 (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
919 (*last_cmd)->cmd.runtest->end_state = state;
920
921 return ERROR_OK;
922 }
923
924 int jtag_add_runtest(int num_cycles, enum tap_state state)
925 {
926 if (jtag_trst == 1)
927 {
928 jtag_error=ERROR_JTAG_QUEUE_FAILED;
929 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
930 return ERROR_JTAG_TRST_ASSERTED;
931 }
932
933 if (state != -1)
934 cmd_queue_end_state = state;
935
936 if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
937 jtag_call_event_callbacks(JTAG_TRST_RELEASED);
938
939 if (cmd_queue_end_state == TAP_TLR)
940 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
941
942 cmd_queue_cur_state = cmd_queue_end_state;
943
944 /* executed by sw or hw fifo */
945 return interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
946 }
947
948 int jtag_add_reset(int req_trst, int req_srst)
949 {
950 int trst_with_tms = 0;
951 int retval;
952
953 if (req_trst == -1)
954 req_trst = jtag_trst;
955
956 if (req_srst == -1)
957 req_srst = jtag_srst;
958
959 /* Make sure that jtag_reset_config allows the requested reset */
960 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
961 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
962 {
963 return jtag_error=ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
964 }
965
966 /* if TRST pulls SRST, we reset with TAP T-L-R */
967 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
968 {
969 req_trst = 0;
970 trst_with_tms = 1;
971 }
972
973 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
974 {
975 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
976 return jtag_error=ERROR_JTAG_RESET_CANT_SRST;
977 }
978
979 if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
980 {
981 req_trst = 0;
982 trst_with_tms = 1;
983 }
984
985 jtag_trst = req_trst;
986 jtag_srst = req_srst;
987
988 retval = interface_jtag_add_reset(req_trst, req_srst);
989 if (retval!=ERROR_OK)
990 {
991 jtag_error=retval;
992 return retval;
993 }
994
995 if (jtag_srst)
996 {
997 jtag_call_event_callbacks(JTAG_SRST_ASSERTED);
998 }
999 else
1000 {
1001 jtag_call_event_callbacks(JTAG_SRST_RELEASED);
1002 if (jtag_nsrst_delay)
1003 jtag_add_sleep(jtag_nsrst_delay * 1000);
1004 }
1005
1006 if (trst_with_tms)
1007 {
1008 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1009 jtag_add_end_state(TAP_TLR);
1010 jtag_add_statemove(TAP_TLR);
1011
1012 return ERROR_OK;
1013 }
1014
1015 if (jtag_trst)
1016 {
1017 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
1018 * and inform possible listeners about this
1019 */
1020 cmd_queue_cur_state = TAP_TLR;
1021 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1022 }
1023 else
1024 {
1025 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
1026 * but we might want to add a delay to give the TAP time to settle
1027 */
1028 if (jtag_ntrst_delay)
1029 jtag_add_sleep(jtag_ntrst_delay * 1000);
1030 }
1031
1032 return retval;
1033
1034 }
1035
1036 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
1037 {
1038 jtag_command_t **last_cmd = jtag_get_last_command_p();
1039
1040 /* allocate memory for a new list member */
1041 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1042 (*last_cmd)->next = NULL;
1043 last_comand_pointer = &((*last_cmd)->next);
1044 (*last_cmd)->type = JTAG_RESET;
1045
1046 (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
1047 (*last_cmd)->cmd.reset->trst = req_trst;
1048 (*last_cmd)->cmd.reset->srst = req_srst;
1049
1050
1051 return ERROR_OK;
1052 }
1053
1054 int MINIDRIVER(interface_jtag_add_end_state)(enum tap_state state)
1055 {
1056 jtag_command_t **last_cmd = jtag_get_last_command_p();
1057
1058 /* allocate memory for a new list member */
1059 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1060 (*last_cmd)->next = NULL;
1061 last_comand_pointer = &((*last_cmd)->next);
1062 (*last_cmd)->type = JTAG_END_STATE;
1063
1064 (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));
1065 (*last_cmd)->cmd.end_state->end_state = state;
1066
1067 return ERROR_OK;
1068 }
1069
1070 int jtag_add_end_state(enum tap_state state)
1071 {
1072 if (state != -1)
1073 cmd_queue_end_state = state;
1074 int retval = interface_jtag_add_end_state(cmd_queue_end_state);
1075 return retval;
1076 }
1077
1078 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1079 {
1080 jtag_command_t **last_cmd = jtag_get_last_command_p();
1081
1082 /* allocate memory for a new list member */
1083 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1084 (*last_cmd)->next = NULL;
1085 last_comand_pointer = &((*last_cmd)->next);
1086 (*last_cmd)->type = JTAG_SLEEP;
1087
1088 (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1089 (*last_cmd)->cmd.sleep->us = us;
1090
1091 return ERROR_OK;
1092 }
1093
1094 int jtag_add_sleep(u32 us)
1095 {
1096 return interface_jtag_add_sleep(us);
1097 }
1098
1099 int jtag_scan_size(scan_command_t *cmd)
1100 {
1101 int bit_count = 0;
1102 int i;
1103
1104 /* count bits in scan command */
1105 for (i = 0; i < cmd->num_fields; i++)
1106 {
1107 bit_count += cmd->fields[i].num_bits;
1108 }
1109
1110 return bit_count;
1111 }
1112
1113 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1114 {
1115 int bit_count = 0;
1116 int i;
1117
1118 bit_count = jtag_scan_size(cmd);
1119 *buffer = malloc(CEIL(bit_count, 8));
1120
1121 bit_count = 0;
1122
1123 for (i = 0; i < cmd->num_fields; i++)
1124 {
1125 if (cmd->fields[i].out_value)
1126 {
1127 #ifdef _DEBUG_JTAG_IO_
1128 char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1129 #endif
1130 buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1131 #ifdef _DEBUG_JTAG_IO_
1132 DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1133 free(char_buf);
1134 #endif
1135 }
1136
1137 bit_count += cmd->fields[i].num_bits;
1138 }
1139
1140 return bit_count;
1141
1142 }
1143
1144 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1145 {
1146 int i;
1147 int bit_count = 0;
1148 int retval;
1149
1150 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1151 retval = ERROR_OK;
1152
1153 for (i = 0; i < cmd->num_fields; i++)
1154 {
1155 /* if neither in_value nor in_handler
1156 * are specified we don't have to examine this field
1157 */
1158 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1159 {
1160 int num_bits = cmd->fields[i].num_bits;
1161 u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1162
1163 #ifdef _DEBUG_JTAG_IO_
1164 char *char_buf;
1165
1166 char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1167 DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1168 free(char_buf);
1169 #endif
1170
1171 if (cmd->fields[i].in_value)
1172 {
1173 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1174
1175 if (cmd->fields[i].in_handler)
1176 {
1177 if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1178 {
1179 WARNING("in_handler reported a failed check");
1180 retval = ERROR_JTAG_QUEUE_FAILED;
1181 }
1182 }
1183 }
1184
1185 /* no in_value specified, but a handler takes care of the scanned data */
1186 if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1187 {
1188 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1189 {
1190 /* We're going to call the error:handler later, but if the in_handler
1191 * reported an error we report this failure upstream
1192 */
1193 WARNING("in_handler reported a failed check");
1194 retval = ERROR_JTAG_QUEUE_FAILED;
1195 }
1196 }
1197
1198 free(captured);
1199 }
1200 bit_count += cmd->fields[i].num_bits;
1201 }
1202
1203 return retval;
1204 }
1205
1206 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1207 {
1208 int retval = ERROR_OK;
1209 int num_bits = field->num_bits;
1210
1211 int compare_failed = 0;
1212
1213 if (field->in_check_mask)
1214 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1215 else
1216 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1217
1218 if (compare_failed)
1219 {
1220 /* An error handler could have caught the failing check
1221 * only report a problem when there wasn't a handler, or if the handler
1222 * acknowledged the error
1223 */
1224 if (compare_failed)
1225 {
1226 char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1227 char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1228
1229 if (field->in_check_mask)
1230 {
1231 char *in_check_mask_char;
1232 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1233 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);
1234 free(in_check_mask_char);
1235 }
1236 else
1237 {
1238 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1239 }
1240
1241 free(captured_char);
1242 free(in_check_value_char);
1243
1244 retval = ERROR_JTAG_QUEUE_FAILED;
1245 }
1246
1247 }
1248 return retval;
1249 }
1250
1251 /*
1252 set up checking of this field using the in_handler. The values passed in must be valid until
1253 after jtag_execute() has completed.
1254 */
1255 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1256 {
1257 if (value)
1258 field->in_handler = jtag_check_value;
1259 else
1260 field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1261 field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
1262 field->in_check_value = value;
1263 field->in_check_mask = mask;
1264 }
1265
1266 enum scan_type jtag_scan_type(scan_command_t *cmd)
1267 {
1268 int i;
1269 int type = 0;
1270
1271 for (i = 0; i < cmd->num_fields; i++)
1272 {
1273 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1274 type |= SCAN_IN;
1275 if (cmd->fields[i].out_value)
1276 type |= SCAN_OUT;
1277 }
1278
1279 return type;
1280 }
1281
1282 int MINIDRIVER(interface_jtag_execute_queue)(void)
1283 {
1284 int retval;
1285
1286 retval = jtag->execute_queue();
1287
1288 cmd_queue_free();
1289
1290 jtag_command_queue = NULL;
1291 last_comand_pointer = &jtag_command_queue;
1292
1293 return retval;
1294 }
1295
1296 int jtag_execute_queue(void)
1297 {
1298 int retval=interface_jtag_execute_queue();
1299 if (retval==ERROR_OK)
1300 {
1301 retval=jtag_error;
1302 }
1303 jtag_error=ERROR_OK;
1304 return retval;
1305 }
1306
1307 int jtag_reset_callback(enum jtag_event event, void *priv)
1308 {
1309 jtag_device_t *device = priv;
1310
1311 DEBUG("-");
1312
1313 if (event == JTAG_TRST_ASSERTED)
1314 {
1315 buf_set_ones(device->cur_instr, device->ir_length);
1316 device->bypass = 1;
1317 }
1318
1319 return ERROR_OK;
1320 }
1321
1322 void jtag_sleep(u32 us)
1323 {
1324 usleep(us);
1325 }
1326
1327 /* Try to examine chain layout according to IEEE 1149.1 ยง12
1328 */
1329 int jtag_examine_chain()
1330 {
1331 jtag_device_t *device = jtag_devices;
1332 scan_field_t field;
1333 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1334 int i;
1335 int bit_count;
1336 int device_count = 0;
1337 u8 zero_check = 0x0;
1338 u8 one_check = 0xff;
1339
1340 field.device = 0;
1341 field.num_bits = sizeof(idcode_buffer) * 8;
1342 field.out_value = idcode_buffer;
1343 field.out_mask = NULL;
1344 field.in_value = idcode_buffer;
1345 field.in_check_value = NULL;
1346 field.in_check_mask = NULL;
1347 field.in_handler = NULL;
1348 field.in_handler_priv = NULL;
1349
1350 for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1351 {
1352 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1353 }
1354
1355 jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1356 jtag_execute_queue();
1357
1358 for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1359 {
1360 zero_check |= idcode_buffer[i];
1361 one_check &= idcode_buffer[i];
1362 }
1363
1364 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1365 if ((zero_check == 0x00) || (one_check == 0xff))
1366 {
1367 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1368 return ERROR_JTAG_INIT_FAILED;
1369 }
1370
1371 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1372 {
1373 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1374 if ((idcode & 1) == 0)
1375 {
1376 /* LSB must not be 0, this indicates a device in bypass */
1377 device_count++;
1378
1379 bit_count += 1;
1380 }
1381 else
1382 {
1383 u32 manufacturer;
1384 u32 part;
1385 u32 version;
1386
1387 if (idcode == 0x000000FF)
1388 {
1389 /* End of chain (invalid manufacturer ID) */
1390 break;
1391 }
1392
1393 if (device)
1394 {
1395 device->idcode = idcode;
1396 device = device->next;
1397 }
1398 device_count++;
1399
1400 manufacturer = (idcode & 0xffe) >> 1;
1401 part = (idcode & 0xffff000) >> 12;
1402 version = (idcode & 0xf0000000) >> 28;
1403
1404 INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1405 idcode, manufacturer, part, version);
1406
1407 bit_count += 32;
1408 }
1409 }
1410
1411 /* see if number of discovered devices matches configuration */
1412 if (device_count != jtag_num_devices)
1413 {
1414 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1415 device_count, jtag_num_devices);
1416 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1417 return ERROR_JTAG_INIT_FAILED;
1418 }
1419
1420 return ERROR_OK;
1421 }
1422
1423 int jtag_validate_chain()
1424 {
1425 jtag_device_t *device = jtag_devices;
1426 int total_ir_length = 0;
1427 u8 *ir_test = NULL;
1428 scan_field_t field;
1429 int chain_pos = 0;
1430
1431 while (device)
1432 {
1433 total_ir_length += device->ir_length;
1434 device = device->next;
1435 }
1436
1437 total_ir_length += 2;
1438 ir_test = malloc(CEIL(total_ir_length, 8));
1439 buf_set_ones(ir_test, total_ir_length);
1440
1441 field.device = 0;
1442 field.num_bits = total_ir_length;
1443 field.out_value = ir_test;
1444 field.out_mask = NULL;
1445 field.in_value = ir_test;
1446 field.in_check_value = NULL;
1447 field.in_check_mask = NULL;
1448 field.in_handler = NULL;
1449 field.in_handler_priv = NULL;
1450
1451 jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1452 jtag_execute_queue();
1453
1454 device = jtag_devices;
1455 while (device)
1456 {
1457 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1458 {
1459 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1460 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1461 free(cbuf);
1462 free(ir_test);
1463 return ERROR_JTAG_INIT_FAILED;
1464 }
1465 chain_pos += device->ir_length;
1466 device = device->next;
1467 }
1468
1469 if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1470 {
1471 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1472 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1473 free(cbuf);
1474 free(ir_test);
1475 return ERROR_JTAG_INIT_FAILED;
1476 }
1477
1478 free(ir_test);
1479
1480 return ERROR_OK;
1481 }
1482
1483 int jtag_register_commands(struct command_context_s *cmd_ctx)
1484 {
1485 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1486 COMMAND_CONFIG, NULL);
1487 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1488 COMMAND_ANY, "set jtag speed (if supported) <speed>");
1489 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1490 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1491 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1492 COMMAND_CONFIG, NULL);
1493 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1494 COMMAND_CONFIG, NULL);
1495 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1496 COMMAND_CONFIG, NULL);
1497
1498 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1499 COMMAND_EXEC, "print current scan chain configuration");
1500
1501 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1502 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1503 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1504 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1505 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1506 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1507 register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
1508 COMMAND_EXEC, "move to current endstate or [tap_state]");
1509 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1510 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1511 register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1512 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1513
1514 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1515 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1516 return ERROR_OK;
1517 }
1518
1519 int jtag_interface_init(struct command_context_s *cmd_ctx)
1520 {
1521 if (!jtag_interface)
1522 {
1523 /* nothing was previously specified by "interface" command */
1524 ERROR("JTAG interface has to be specified, see \"interface\" command");
1525 return ERROR_JTAG_INVALID_INTERFACE;
1526 }
1527
1528 if (jtag_interface->init() != ERROR_OK)
1529 return ERROR_JTAG_INIT_FAILED;
1530
1531 jtag = jtag_interface;
1532 return ERROR_OK;
1533 }
1534
1535 int jtag_init(struct command_context_s *cmd_ctx)
1536 {
1537 int validate_tries = 0;
1538 jtag_device_t *device;
1539
1540 DEBUG("-");
1541
1542 if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1543 return ERROR_JTAG_INIT_FAILED;
1544
1545 device = jtag_devices;
1546 jtag_ir_scan_size = 0;
1547 jtag_num_devices = 0;
1548 while (device != NULL)
1549 {
1550 jtag_ir_scan_size += device->ir_length;
1551 jtag_num_devices++;
1552 device = device->next;
1553 }
1554
1555 jtag_add_statemove(TAP_TLR);
1556 jtag_execute_queue();
1557
1558 /* examine chain first, as this could discover the real chain layout */
1559 if (jtag_examine_chain() != ERROR_OK)
1560 {
1561 ERROR("trying to validate configured JTAG chain anyway...");
1562 }
1563
1564 while (jtag_validate_chain() != ERROR_OK)
1565 {
1566 validate_tries++;
1567 if (validate_tries > 5)
1568 {
1569 ERROR("Could not validate JTAG chain, exit");
1570 return ERROR_JTAG_INVALID_INTERFACE;
1571 }
1572 usleep(10000);
1573 }
1574
1575 return ERROR_OK;
1576 }
1577
1578 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1579 {
1580 int i;
1581
1582 /* check whether the interface is already configured */
1583 if (jtag_interface)
1584 {
1585 WARNING("Interface already configured, ignoring");
1586 return ERROR_OK;
1587 }
1588
1589 /* interface name is a mandatory argument */
1590 if (argc < 1 || args[0][0] == '\0')
1591 {
1592 return ERROR_COMMAND_SYNTAX_ERROR;
1593 }
1594
1595 for (i=0; jtag_interfaces[i]; i++)
1596 {
1597 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1598 {
1599 if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1600 exit(-1);
1601
1602 jtag_interface = jtag_interfaces[i];
1603 return ERROR_OK;
1604 }
1605 }
1606
1607 /* no valid interface was found (i.e. the configuration option,
1608 * didn't match one of the compiled-in interfaces
1609 */
1610 ERROR("No valid jtag interface found (%s)", args[0]);
1611 ERROR("compiled-in jtag interfaces:");
1612 for (i = 0; jtag_interfaces[i]; i++)
1613 {
1614 ERROR("%i: %s", i, jtag_interfaces[i]->name);
1615 }
1616
1617 return ERROR_JTAG_INVALID_INTERFACE;
1618 }
1619
1620 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1621 {
1622 jtag_device_t **last_device_p = &jtag_devices;
1623
1624 if (*last_device_p)
1625 {
1626 while ((*last_device_p)->next)
1627 last_device_p = &((*last_device_p)->next);
1628 last_device_p = &((*last_device_p)->next);
1629 }
1630
1631 if (argc < 3)
1632 return ERROR_OK;
1633
1634 *last_device_p = malloc(sizeof(jtag_device_t));
1635 (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1636
1637 (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1638 buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1639 (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1640 buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1641
1642 (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1643 (*last_device_p)->bypass = 1;
1644 buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1645
1646 (*last_device_p)->next = NULL;
1647
1648 jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1649
1650 jtag_num_devices++;
1651
1652 return ERROR_OK;
1653 }
1654
1655 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1656 {
1657 jtag_device_t *device = jtag_devices;
1658 int device_count = 0;
1659
1660 while (device)
1661 {
1662 u32 expected, expected_mask, cur_instr;
1663 expected = buf_get_u32(device->expected, 0, device->ir_length);
1664 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1665 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1666 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);
1667 device = device->next;
1668 device_count++;
1669 }
1670
1671 return ERROR_OK;
1672 }
1673
1674 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1675 {
1676 if (argc >= 1)
1677 {
1678 if (strcmp(args[0], "none") == 0)
1679 jtag_reset_config = RESET_NONE;
1680 else if (strcmp(args[0], "trst_only") == 0)
1681 jtag_reset_config = RESET_HAS_TRST;
1682 else if (strcmp(args[0], "srst_only") == 0)
1683 jtag_reset_config = RESET_HAS_SRST;
1684 else if (strcmp(args[0], "trst_and_srst") == 0)
1685 jtag_reset_config = RESET_TRST_AND_SRST;
1686 else
1687 {
1688 ERROR("invalid reset_config argument, defaulting to none");
1689 jtag_reset_config = RESET_NONE;
1690 return ERROR_INVALID_ARGUMENTS;
1691 }
1692 }
1693
1694 if (argc >= 2)
1695 {
1696 if (strcmp(args[1], "srst_pulls_trst") == 0)
1697 jtag_reset_config |= RESET_SRST_PULLS_TRST;
1698 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1699 jtag_reset_config |= RESET_TRST_PULLS_SRST;
1700 else if (strcmp(args[1], "combined") == 0)
1701 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1702 else if (strcmp(args[1], "separate") == 0)
1703 jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
1704 else
1705 {
1706 ERROR("invalid reset_config argument, defaulting to none");
1707 jtag_reset_config = RESET_NONE;
1708 return ERROR_INVALID_ARGUMENTS;
1709 }
1710 }
1711
1712 if (argc >= 3)
1713 {
1714 if (strcmp(args[2], "trst_open_drain") == 0)
1715 jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1716 else if (strcmp(args[2], "trst_push_pull") == 0)
1717 jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1718 else
1719 {
1720 ERROR("invalid reset_config argument, defaulting to none");
1721 jtag_reset_config = RESET_NONE;
1722 return ERROR_INVALID_ARGUMENTS;
1723 }
1724 }
1725
1726 if (argc >= 4)
1727 {
1728 if (strcmp(args[3], "srst_push_pull") == 0)
1729 jtag_reset_config |= RESET_SRST_PUSH_PULL;
1730 else if (strcmp(args[3], "srst_open_drain") == 0)
1731 jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1732 else
1733 {
1734 ERROR("invalid reset_config argument, defaulting to none");
1735 jtag_reset_config = RESET_NONE;
1736 return ERROR_INVALID_ARGUMENTS;
1737 }
1738 }
1739
1740 return ERROR_OK;
1741 }
1742
1743 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1744 {
1745 if (argc < 1)
1746 {
1747 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1748 exit(-1);
1749 }
1750 else
1751 {
1752 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1753 }
1754
1755 return ERROR_OK;
1756 }
1757
1758 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1759 {
1760 if (argc < 1)
1761 {
1762 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1763 exit(-1);
1764 }
1765 else
1766 {
1767 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1768 }
1769
1770 return ERROR_OK;
1771 }
1772
1773 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1774 {
1775 if (argc == 0)
1776 command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);
1777
1778 if (argc > 0)
1779 {
1780 /* this command can be called during CONFIG,
1781 * in which case jtag isn't initialized */
1782 if (jtag)
1783 jtag->speed(strtoul(args[0], NULL, 0));
1784 else
1785 jtag_speed = strtoul(args[0], NULL, 0);
1786 }
1787
1788 return ERROR_OK;
1789 }
1790
1791 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1792 {
1793 enum tap_state state;
1794
1795 if (argc < 1)
1796 {
1797 return ERROR_COMMAND_SYNTAX_ERROR;
1798 }
1799 else
1800 {
1801 for (state = 0; state < 16; state++)
1802 {
1803 if (strcmp(args[0], tap_state_strings[state]) == 0)
1804 {
1805 jtag_add_end_state(state);
1806 jtag_execute_queue();
1807 }
1808 }
1809 }
1810 command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1811
1812 return ERROR_OK;
1813 }
1814
1815 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1816 {
1817 int trst = -1;
1818 int srst = -1;
1819 int retval;
1820
1821 if (argc < 2)
1822 {
1823 return ERROR_COMMAND_SYNTAX_ERROR;
1824
1825 }
1826
1827 if (args[0][0] == '1')
1828 trst = 1;
1829 else if (args[0][0] == '0')
1830 trst = 0;
1831 else
1832 {
1833 return ERROR_COMMAND_SYNTAX_ERROR;
1834 }
1835
1836 if (args[1][0] == '1')
1837 srst = 1;
1838 else if (args[1][0] == '0')
1839 srst = 0;
1840 else
1841 {
1842 return ERROR_COMMAND_SYNTAX_ERROR;
1843 }
1844
1845 if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1846 return ERROR_JTAG_INIT_FAILED;
1847
1848 if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)
1849 {
1850 switch (retval)
1851 {
1852 case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:
1853 command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);
1854 break;
1855 case ERROR_JTAG_RESET_CANT_SRST:
1856 command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");
1857 break;
1858 default:
1859 command_print(cmd_ctx, "unknown error");
1860 }
1861 }
1862 jtag_execute_queue();
1863
1864 return ERROR_OK;
1865 }
1866
1867 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1868 {
1869 if (argc < 1)
1870 {
1871 return ERROR_COMMAND_SYNTAX_ERROR;
1872 }
1873
1874 jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1875 jtag_execute_queue();
1876
1877 return ERROR_OK;
1878
1879 }
1880
1881 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1882 {
1883 enum tap_state state;
1884
1885 state = -1;
1886 if (argc == 1)
1887 {
1888 for (state = 0; state < 16; state++)
1889 {
1890 if (strcmp(args[0], tap_state_strings[state]) == 0)
1891 {
1892 break;
1893 }
1894 }
1895 }
1896
1897 jtag_add_statemove(state);
1898 jtag_execute_queue();
1899
1900 return ERROR_OK;
1901
1902 }
1903
1904 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1905 {
1906 int i;
1907 scan_field_t *fields;
1908
1909 if ((argc < 2) || (argc % 2))
1910 {
1911 return ERROR_COMMAND_SYNTAX_ERROR;
1912 }
1913
1914 fields = malloc(sizeof(scan_field_t) * argc / 2);
1915
1916 for (i = 0; i < argc / 2; i++)
1917 {
1918 int device = strtoul(args[i*2], NULL, 0);
1919 int field_size = jtag_get_device(device)->ir_length;
1920 fields[i].device = device;
1921 fields[i].out_value = malloc(CEIL(field_size, 8));
1922 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1923 fields[i].out_mask = NULL;
1924 fields[i].in_value = NULL;
1925 fields[i].in_check_mask = NULL;
1926 fields[i].in_handler = NULL;
1927 fields[i].in_handler_priv = NULL;
1928 }
1929
1930 jtag_add_ir_scan(argc / 2, fields, -1);
1931 jtag_execute_queue();
1932
1933 for (i = 0; i < argc / 2; i++)
1934 free(fields[i].out_value);
1935
1936 free (fields);
1937
1938 return ERROR_OK;
1939 }
1940
1941 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1942 {
1943 scan_field_t *fields;
1944 int num_fields = 0;
1945 int field_count = 0;
1946 var_t *var;
1947 int i, j;
1948
1949 if ((argc < 2) || (argc % 2))
1950 {
1951 return ERROR_COMMAND_SYNTAX_ERROR;
1952 }
1953
1954 for (i = 0; i < argc; i+=2)
1955 {
1956 var = get_var_by_namenum(args[i+1]);
1957 if (var)
1958 {
1959 num_fields += var->num_fields;
1960 }
1961 else
1962 {
1963 command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1964 return ERROR_OK;
1965 }
1966 }
1967
1968 fields = malloc(sizeof(scan_field_t) * num_fields);
1969
1970 for (i = 0; i < argc; i+=2)
1971 {
1972 var = get_var_by_namenum(args[i+1]);
1973
1974 for (j = 0; j < var->num_fields; j++)
1975 {
1976 fields[field_count].device = strtol(args[i], NULL, 0);
1977 fields[field_count].num_bits = var->fields[j].num_bits;
1978 fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1979 buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1980 fields[field_count].out_mask = NULL;
1981 fields[field_count].in_value = fields[field_count].out_value;
1982 fields[field_count].in_check_mask = NULL;
1983 fields[field_count].in_check_value = NULL;
1984 fields[field_count].in_handler = field_le_to_host;
1985 fields[field_count++].in_handler_priv = &(var->fields[j]);
1986 }
1987 }
1988
1989 jtag_add_dr_scan(num_fields, fields, -1);
1990 jtag_execute_queue();
1991
1992 for (i = 0; i < argc / 2; i++)
1993 free(fields[i].out_value);
1994
1995 free(fields);
1996
1997 return ERROR_OK;
1998 }
1999
2000 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2001 {
2002 if (argc == 1)
2003 {
2004 if (strcmp(args[0], "enable") == 0)
2005 {
2006 jtag_verify_capture_ir = 1;
2007 }
2008 else if (strcmp(args[0], "disable") == 0)
2009 {
2010 jtag_verify_capture_ir = 0;
2011 } else
2012 {
2013 return ERROR_COMMAND_SYNTAX_ERROR;
2014 }
2015 } else if (argc != 0)
2016 {
2017 return ERROR_COMMAND_SYNTAX_ERROR;
2018 }
2019
2020 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2021
2022 return ERROR_OK;
2023 }