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[openocd.git] / src / jtag / jtag.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "replacements.h"
28
29 #include "jtag.h"
30
31 #include "command.h"
32 #include "log.h"
33
34 #include "stdlib.h"
35 #include "string.h"
36 #include <unistd.h>
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 "JTAG controller reset (TLR or TRST)"
111 };
112
113 /* kludge!!!! these are just global variables that the
114 * interface use internally. They really belong
115 * inside the drivers, but we don't want to break
116 * linking the drivers!!!!
117 */
118 enum tap_state end_state = TAP_TLR;
119 enum tap_state cur_state = TAP_TLR;
120 int jtag_trst = 0;
121 int jtag_srst = 0;
122
123 jtag_command_t *jtag_command_queue = NULL;
124 jtag_command_t **last_comand_pointer = &jtag_command_queue;
125 jtag_device_t *jtag_devices = NULL;
126 int jtag_num_devices = 0;
127 int jtag_ir_scan_size = 0;
128 enum reset_types jtag_reset_config = RESET_NONE;
129 enum tap_state cmd_queue_end_state = TAP_TLR;
130 enum tap_state cmd_queue_cur_state = TAP_TLR;
131
132 int jtag_verify_capture_ir = 1;
133
134 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
135 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
136 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
137
138 /* maximum number of JTAG devices expected in the chain
139 */
140 #define JTAG_MAX_CHAIN_SIZE 20
141
142 /* callbacks to inform high-level handlers about JTAG state changes */
143 jtag_event_callback_t *jtag_event_callbacks;
144
145 /* speed in kHz*/
146 static int speed_khz = 0;
147 /* flag if the kHz speed was defined */
148 static int hasKHz = 0;
149
150 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
151 */
152
153 #if BUILD_ECOSBOARD == 1
154 extern jtag_interface_t eCosBoard_interface;
155 #endif
156
157 #if BUILD_PARPORT == 1
158 extern jtag_interface_t parport_interface;
159 #endif
160
161 #if BUILD_DUMMY == 1
162 extern jtag_interface_t dummy_interface;
163 #endif
164
165 #if BUILD_FT2232_FTD2XX == 1
166 extern jtag_interface_t ft2232_interface;
167 #endif
168
169 #if BUILD_FT2232_LIBFTDI == 1
170 extern jtag_interface_t ft2232_interface;
171 #endif
172
173 #if BUILD_AMTJTAGACCEL == 1
174 extern jtag_interface_t amt_jtagaccel_interface;
175 #endif
176
177 #if BUILD_EP93XX == 1
178 extern jtag_interface_t ep93xx_interface;
179 #endif
180
181 #if BUILD_AT91RM9200 == 1
182 extern jtag_interface_t at91rm9200_interface;
183 #endif
184
185 #if BUILD_GW16012 == 1
186 extern jtag_interface_t gw16012_interface;
187 #endif
188
189 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
190 extern jtag_interface_t presto_interface;
191 #endif
192
193 #if BUILD_USBPROG == 1
194 extern jtag_interface_t usbprog_interface;
195 #endif
196
197 #if BUILD_JLINK == 1
198 extern jtag_interface_t jlink_interface;
199 #endif
200
201 jtag_interface_t *jtag_interfaces[] = {
202 #if BUILD_ECOSBOARD == 1
203 &eCosBoard_interface,
204 #endif
205 #if BUILD_PARPORT == 1
206 &parport_interface,
207 #endif
208 #if BUILD_DUMMY == 1
209 &dummy_interface,
210 #endif
211 #if BUILD_FT2232_FTD2XX == 1
212 &ft2232_interface,
213 #endif
214 #if BUILD_FT2232_LIBFTDI == 1
215 &ft2232_interface,
216 #endif
217 #if BUILD_AMTJTAGACCEL == 1
218 &amt_jtagaccel_interface,
219 #endif
220 #if BUILD_EP93XX == 1
221 &ep93xx_interface,
222 #endif
223 #if BUILD_AT91RM9200 == 1
224 &at91rm9200_interface,
225 #endif
226 #if BUILD_GW16012 == 1
227 &gw16012_interface,
228 #endif
229 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
230 &presto_interface,
231 #endif
232 #if BUILD_USBPROG == 1
233 &usbprog_interface,
234 #endif
235 #if BUILD_JLINK == 1
236 &jlink_interface,
237 #endif
238 NULL,
239 };
240
241 jtag_interface_t *jtag = NULL;
242
243 /* configuration */
244 jtag_interface_t *jtag_interface = NULL;
245 int jtag_speed = 0;
246
247
248
249 /* forward declarations */
250 void jtag_add_pathmove(int num_states, enum tap_state *path);
251 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
252 void jtag_add_end_state(enum tap_state endstate);
253 void jtag_add_sleep(u32 us);
254 int jtag_execute_queue(void);
255 int jtag_cancel_queue(void);
256
257 /* jtag commands */
258 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
259 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
260 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
261 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
262 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
263 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
264 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
265
266 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
267
268 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
269 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
270 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
271 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
272 int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
273
274 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
275
276 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
277 {
278 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
279
280 if (callback == NULL)
281 {
282 return ERROR_INVALID_ARGUMENTS;
283 }
284
285 if (*callbacks_p)
286 {
287 while ((*callbacks_p)->next)
288 callbacks_p = &((*callbacks_p)->next);
289 callbacks_p = &((*callbacks_p)->next);
290 }
291
292 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
293 (*callbacks_p)->callback = callback;
294 (*callbacks_p)->priv = priv;
295 (*callbacks_p)->next = NULL;
296
297 return ERROR_OK;
298 }
299
300 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
301 {
302 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
303
304 if (callback == NULL)
305 {
306 return ERROR_INVALID_ARGUMENTS;
307 }
308
309 while (*callbacks_p)
310 {
311 jtag_event_callback_t **next = &((*callbacks_p)->next);
312 if ((*callbacks_p)->callback == callback)
313 {
314 free(*callbacks_p);
315 *callbacks_p = *next;
316 }
317 callbacks_p = next;
318 }
319
320 return ERROR_OK;
321 }
322
323 int jtag_call_event_callbacks(enum jtag_event event)
324 {
325 jtag_event_callback_t *callback = jtag_event_callbacks;
326
327 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
328
329 while (callback)
330 {
331 callback->callback(event, callback->priv);
332 callback = callback->next;
333 }
334
335 return ERROR_OK;
336 }
337
338 /* returns a pointer to the pointer of the last command in queue
339 * this may be a pointer to the root pointer (jtag_command_queue)
340 * or to the next member of the last but one command
341 */
342 jtag_command_t** jtag_get_last_command_p(void)
343 {
344 /* jtag_command_t *cmd = jtag_command_queue;
345
346 if (cmd)
347 while (cmd->next)
348 cmd = cmd->next;
349 else
350 return &jtag_command_queue;
351
352 return &cmd->next;*/
353
354 return last_comand_pointer;
355 }
356
357 /* returns a pointer to the n-th device in the scan chain */
358 jtag_device_t* jtag_get_device(int num)
359 {
360 jtag_device_t *device = jtag_devices;
361 int i = 0;
362
363 while (device)
364 {
365 if (num == i)
366 return device;
367 device = device->next;
368 i++;
369 }
370
371 LOG_ERROR("jtag device number %d not defined", num);
372 exit(-1);
373 }
374
375 void* cmd_queue_alloc(size_t size)
376 {
377 cmd_queue_page_t **p_page = &cmd_queue_pages;
378 int offset;
379 u8 *t;
380
381 if (*p_page)
382 {
383 while ((*p_page)->next)
384 p_page = &((*p_page)->next);
385 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
386 p_page = &((*p_page)->next);
387 }
388
389 if (!*p_page)
390 {
391 *p_page = malloc(sizeof(cmd_queue_page_t));
392 (*p_page)->used = 0;
393 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
394 (*p_page)->next = NULL;
395 }
396
397 offset = (*p_page)->used;
398 (*p_page)->used += size;
399
400 t=(u8 *)((*p_page)->address);
401 return t + offset;
402 }
403
404 void cmd_queue_free()
405 {
406 cmd_queue_page_t *page = cmd_queue_pages;
407
408 while (page)
409 {
410 cmd_queue_page_t *last = page;
411 free(page->address);
412 page = page->next;
413 free(last);
414 }
415
416 cmd_queue_pages = NULL;
417 }
418
419 static void jtag_prelude1()
420 {
421 if (jtag_trst == 1)
422 {
423 LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
424 jtag_error=ERROR_JTAG_TRST_ASSERTED;
425 return;
426 }
427
428 if (cmd_queue_end_state == TAP_TLR)
429 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
430 }
431
432 static void jtag_prelude(enum tap_state state)
433 {
434 jtag_prelude1();
435
436 if (state != -1)
437 jtag_add_end_state(state);
438
439 cmd_queue_cur_state = cmd_queue_end_state;
440 }
441
442 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
443 {
444 int retval;
445
446 jtag_prelude(state);
447
448 retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
449 if (retval!=ERROR_OK)
450 jtag_error=retval;
451 }
452
453 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
454 {
455 jtag_command_t **last_cmd;
456 jtag_device_t *device;
457 int i, j;
458 int scan_size = 0;
459
460
461 last_cmd = jtag_get_last_command_p();
462
463 /* allocate memory for a new list member */
464 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
465 (*last_cmd)->next = NULL;
466 last_comand_pointer = &((*last_cmd)->next);
467 (*last_cmd)->type = JTAG_SCAN;
468
469 /* allocate memory for ir scan command */
470 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
471 (*last_cmd)->cmd.scan->ir_scan = 1;
472 (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
473 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
474 (*last_cmd)->cmd.scan->end_state = state;
475
476 for (i = 0; i < jtag_num_devices; i++)
477 {
478 int found = 0;
479 device = jtag_get_device(i);
480 scan_size = device->ir_length;
481 (*last_cmd)->cmd.scan->fields[i].device = i;
482 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
483 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
484 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
485
486 /* search the list */
487 for (j = 0; j < num_fields; j++)
488 {
489 if (i == fields[j].device)
490 {
491 found = 1;
492 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
493 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
494
495 if (jtag_verify_capture_ir)
496 {
497 if (fields[j].in_handler==NULL)
498 {
499 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
500 } else
501 {
502 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
503 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
504 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
505 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
506 }
507 }
508
509 device->bypass = 0;
510 break;
511 }
512 }
513
514 if (!found)
515 {
516 /* if a device isn't listed, set it to BYPASS */
517 (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
518 (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
519 device->bypass = 1;
520
521 }
522
523 /* update device information */
524 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
525 }
526
527 return ERROR_OK;
528 }
529
530 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
531 {
532 int retval;
533
534 jtag_prelude(state);
535
536 retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
537 if (retval!=ERROR_OK)
538 jtag_error=retval;
539 }
540
541 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
542 {
543 int i;
544 jtag_command_t **last_cmd;
545
546 last_cmd = jtag_get_last_command_p();
547
548 /* allocate memory for a new list member */
549 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
550 (*last_cmd)->next = NULL;
551 last_comand_pointer = &((*last_cmd)->next);
552 (*last_cmd)->type = JTAG_SCAN;
553
554 /* allocate memory for ir scan command */
555 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
556 (*last_cmd)->cmd.scan->ir_scan = 1;
557 (*last_cmd)->cmd.scan->num_fields = num_fields;
558 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
559 (*last_cmd)->cmd.scan->end_state = state;
560
561 for (i = 0; i < num_fields; i++)
562 {
563 int num_bits = fields[i].num_bits;
564 int num_bytes = CEIL(fields[i].num_bits, 8);
565 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
566 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
567 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
568 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
569 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
570 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
571 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
572 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
573 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
574 }
575 return ERROR_OK;
576 }
577
578 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
579 {
580 int retval;
581
582 jtag_prelude(state);
583
584 retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
585 if (retval!=ERROR_OK)
586 jtag_error=retval;
587 }
588
589 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
590 {
591 int i, j;
592 int bypass_devices = 0;
593 int field_count = 0;
594 int scan_size;
595
596 jtag_command_t **last_cmd = jtag_get_last_command_p();
597 jtag_device_t *device = jtag_devices;
598
599 /* count devices in bypass */
600 while (device)
601 {
602 if (device->bypass)
603 bypass_devices++;
604 device = device->next;
605 }
606 if (bypass_devices >= jtag_num_devices)
607 {
608 LOG_ERROR("all devices in bypass");
609 return ERROR_JTAG_DEVICE_ERROR;
610 }
611
612 /* allocate memory for a new list member */
613 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
614 last_comand_pointer = &((*last_cmd)->next);
615 (*last_cmd)->next = NULL;
616 (*last_cmd)->type = JTAG_SCAN;
617
618 /* allocate memory for dr scan command */
619 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
620 (*last_cmd)->cmd.scan->ir_scan = 0;
621 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
622 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
623 (*last_cmd)->cmd.scan->end_state = state;
624
625 for (i = 0; i < jtag_num_devices; i++)
626 {
627 int found = 0;
628 (*last_cmd)->cmd.scan->fields[field_count].device = i;
629
630 for (j = 0; j < num_fields; j++)
631 {
632 if (i == fields[j].device)
633 {
634 found = 1;
635 scan_size = fields[j].num_bits;
636 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
637 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
638 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
639 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
640 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
641 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
642 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
643 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
644 }
645 }
646 if (!found)
647 {
648 #ifdef _DEBUG_JTAG_IO_
649 /* if a device isn't listed, the BYPASS register should be selected */
650 if (!jtag_get_device(i)->bypass)
651 {
652 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
653 exit(-1);
654 }
655 #endif
656 /* program the scan field to 1 bit length, and ignore it's value */
657 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
658 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
659 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
660 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
661 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
662 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
663 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
664 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
665 }
666 else
667 {
668 #ifdef _DEBUG_JTAG_IO_
669 /* if a device is listed, the BYPASS register must not be selected */
670 if (jtag_get_device(i)->bypass)
671 {
672 LOG_ERROR("BUG: scan data for a device in BYPASS");
673 exit(-1);
674 }
675 #endif
676 }
677 }
678 return ERROR_OK;
679 }
680
681 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
682 int num_fields,
683 const int *num_bits,
684 const u32 *value,
685 enum tap_state end_state)
686 {
687 int i;
688 int field_count = 0;
689 int scan_size;
690 int bypass_devices = 0;
691
692 jtag_command_t **last_cmd = jtag_get_last_command_p();
693 jtag_device_t *device = jtag_devices;
694 /* count devices in bypass */
695 while (device)
696 {
697 if (device->bypass)
698 bypass_devices++;
699 device = device->next;
700 }
701
702 /* allocate memory for a new list member */
703 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
704 last_comand_pointer = &((*last_cmd)->next);
705 (*last_cmd)->next = NULL;
706 (*last_cmd)->type = JTAG_SCAN;
707
708 /* allocate memory for dr scan command */
709 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
710 (*last_cmd)->cmd.scan->ir_scan = 0;
711 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
712 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
713 (*last_cmd)->cmd.scan->end_state = end_state;
714
715 for (i = 0; i < jtag_num_devices; i++)
716 {
717 (*last_cmd)->cmd.scan->fields[field_count].device = i;
718
719 if (i == device_num)
720 {
721 int j;
722 #ifdef _DEBUG_JTAG_IO_
723 /* if a device is listed, the BYPASS register must not be selected */
724 if (jtag_get_device(i)->bypass)
725 {
726 LOG_ERROR("BUG: scan data for a device in BYPASS");
727 exit(-1);
728 }
729 #endif
730 for (j = 0; j < num_fields; j++)
731 {
732 u8 out_value[4];
733 scan_size = num_bits[j];
734 buf_set_u32(out_value, 0, scan_size, value[j]);
735 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
736 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
737 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
738 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
739 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
740 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
741 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
742 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
743 }
744 } else
745 {
746 #ifdef _DEBUG_JTAG_IO_
747 /* if a device isn't listed, the BYPASS register should be selected */
748 if (!jtag_get_device(i)->bypass)
749 {
750 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
751 exit(-1);
752 }
753 #endif
754 /* program the scan field to 1 bit length, and ignore it's value */
755 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
756 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
757 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
758 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
759 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
760 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
761 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
762 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
763 }
764 }
765 }
766
767 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
768 {
769 int retval;
770
771 jtag_prelude(state);
772
773 retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
774 if (retval!=ERROR_OK)
775 jtag_error=retval;
776 }
777
778 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
779 {
780 int i;
781 jtag_command_t **last_cmd = jtag_get_last_command_p();
782
783 /* allocate memory for a new list member */
784 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
785 last_comand_pointer = &((*last_cmd)->next);
786 (*last_cmd)->next = NULL;
787 (*last_cmd)->type = JTAG_SCAN;
788
789 /* allocate memory for scan command */
790 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
791 (*last_cmd)->cmd.scan->ir_scan = 0;
792 (*last_cmd)->cmd.scan->num_fields = num_fields;
793 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
794 (*last_cmd)->cmd.scan->end_state = state;
795
796 for (i = 0; i < num_fields; i++)
797 {
798 int num_bits = fields[i].num_bits;
799 int num_bytes = CEIL(fields[i].num_bits, 8);
800 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
801 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
802 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
803 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
804 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
805 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
806 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
807 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
808 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
809 }
810
811 return ERROR_OK;
812 }
813
814 void jtag_add_tlr()
815 {
816 jtag_prelude(TAP_TLR);
817
818 int retval;
819 retval=interface_jtag_add_tlr();
820 if (retval!=ERROR_OK)
821 jtag_error=retval;
822 }
823
824 int MINIDRIVER(interface_jtag_add_tlr)()
825 {
826 enum tap_state state = TAP_TLR;
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 void jtag_add_pathmove(int num_states, enum tap_state *path)
843 {
844 enum tap_state cur_state=cmd_queue_cur_state;
845 int i;
846 int retval;
847
848 /* the last state has to be a stable state */
849 if (tap_move_map[path[num_states - 1]] == -1)
850 {
851 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
852 exit(-1);
853 }
854
855 for (i=0; i<num_states; i++)
856 {
857 if ((tap_transitions[cur_state].low != path[i])&&
858 (tap_transitions[cur_state].high != path[i]))
859 {
860 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
861 exit(-1);
862 }
863 cur_state = path[i];
864 }
865
866 jtag_prelude1();
867
868
869 retval=interface_jtag_add_pathmove(num_states, path);
870 cmd_queue_cur_state = path[num_states - 1];
871 if (retval!=ERROR_OK)
872 jtag_error=retval;
873 }
874
875 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
876 {
877 jtag_command_t **last_cmd = jtag_get_last_command_p();
878 int i;
879
880 /* allocate memory for a new list member */
881 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
882 last_comand_pointer = &((*last_cmd)->next);
883 (*last_cmd)->next = NULL;
884 (*last_cmd)->type = JTAG_PATHMOVE;
885
886 (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
887 (*last_cmd)->cmd.pathmove->num_states = num_states;
888 (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
889
890 for (i = 0; i < num_states; i++)
891 (*last_cmd)->cmd.pathmove->path[i] = path[i];
892
893 return ERROR_OK;
894 }
895
896 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
897 {
898 jtag_command_t **last_cmd = jtag_get_last_command_p();
899
900 /* allocate memory for a new list member */
901 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
902 (*last_cmd)->next = NULL;
903 last_comand_pointer = &((*last_cmd)->next);
904 (*last_cmd)->type = JTAG_RUNTEST;
905
906 (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
907 (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
908 (*last_cmd)->cmd.runtest->end_state = state;
909
910 return ERROR_OK;
911 }
912
913 void jtag_add_runtest(int num_cycles, enum tap_state state)
914 {
915 int retval;
916
917 jtag_prelude(state);
918
919 /* executed by sw or hw fifo */
920 retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
921 if (retval!=ERROR_OK)
922 jtag_error=retval;
923 }
924
925 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
926 {
927 int trst_with_tlr = 0;
928 int retval;
929
930 /* FIX!!! there are *many* different cases here. A better
931 * approach is needed for legal combinations of transitions...
932 */
933 if ((jtag_reset_config & RESET_HAS_SRST)&&
934 (jtag_reset_config & RESET_HAS_TRST)&&
935 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
936 {
937 if (((req_tlr_or_trst&&!jtag_trst)||
938 (!req_tlr_or_trst&&jtag_trst))&&
939 ((req_srst&&!jtag_srst)||
940 (!req_srst&&jtag_srst)))
941 {
942 /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
943 //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
944 }
945 }
946
947 /* Make sure that jtag_reset_config allows the requested reset */
948 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
949 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
950 {
951 LOG_ERROR("BUG: requested reset would assert trst");
952 jtag_error=ERROR_FAIL;
953 return;
954 }
955
956 /* if TRST pulls SRST, we reset with TAP T-L-R */
957 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
958 {
959 trst_with_tlr = 1;
960 }
961
962 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
963 {
964 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
965 jtag_error=ERROR_FAIL;
966 return;
967 }
968
969 if (req_tlr_or_trst)
970 {
971 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
972 {
973 jtag_trst = 1;
974 } else
975 {
976 trst_with_tlr = 1;
977 }
978 } else
979 {
980 jtag_trst = 0;
981 }
982
983 jtag_srst = req_srst;
984
985 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
986 if (retval!=ERROR_OK)
987 {
988 jtag_error=retval;
989 return;
990 }
991
992 if (jtag_srst)
993 {
994 LOG_DEBUG("SRST line asserted");
995 }
996 else
997 {
998 LOG_DEBUG("SRST line released");
999 if (jtag_nsrst_delay)
1000 jtag_add_sleep(jtag_nsrst_delay * 1000);
1001 }
1002
1003 if (trst_with_tlr)
1004 {
1005 LOG_DEBUG("JTAG reset with TLR instead of TRST");
1006 jtag_add_end_state(TAP_TLR);
1007 jtag_add_tlr();
1008 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1009 return;
1010 }
1011
1012 if (jtag_trst)
1013 {
1014 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
1015 * and inform possible listeners about this
1016 */
1017 LOG_DEBUG("TRST line asserted");
1018 cmd_queue_cur_state = TAP_TLR;
1019 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1020 }
1021 else
1022 {
1023 if (jtag_ntrst_delay)
1024 jtag_add_sleep(jtag_ntrst_delay * 1000);
1025 }
1026 }
1027
1028 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
1029 {
1030 jtag_command_t **last_cmd = jtag_get_last_command_p();
1031
1032 /* allocate memory for a new list member */
1033 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1034 (*last_cmd)->next = NULL;
1035 last_comand_pointer = &((*last_cmd)->next);
1036 (*last_cmd)->type = JTAG_RESET;
1037
1038 (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
1039 (*last_cmd)->cmd.reset->trst = req_trst;
1040 (*last_cmd)->cmd.reset->srst = req_srst;
1041
1042 return ERROR_OK;
1043 }
1044
1045 void jtag_add_end_state(enum tap_state state)
1046 {
1047 cmd_queue_end_state = state;
1048 if ((cmd_queue_end_state == TAP_SD)||(cmd_queue_end_state == TAP_SI))
1049 {
1050 LOG_ERROR("BUG: TAP_SD/SI can't be end state. Calling code should use a larger scan field");
1051 }
1052 }
1053
1054 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
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_SLEEP;
1063
1064 (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1065 (*last_cmd)->cmd.sleep->us = us;
1066
1067 return ERROR_OK;
1068 }
1069
1070 void jtag_add_sleep(u32 us)
1071 {
1072 keep_alive(); /* we might be running on a very slow JTAG clk */
1073 int retval=interface_jtag_add_sleep(us);
1074 if (retval!=ERROR_OK)
1075 jtag_error=retval;
1076 return;
1077 }
1078
1079 int jtag_scan_size(scan_command_t *cmd)
1080 {
1081 int bit_count = 0;
1082 int i;
1083
1084 /* count bits in scan command */
1085 for (i = 0; i < cmd->num_fields; i++)
1086 {
1087 bit_count += cmd->fields[i].num_bits;
1088 }
1089
1090 return bit_count;
1091 }
1092
1093 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1094 {
1095 int bit_count = 0;
1096 int i;
1097
1098 bit_count = jtag_scan_size(cmd);
1099 *buffer = malloc(CEIL(bit_count, 8));
1100
1101 bit_count = 0;
1102
1103 for (i = 0; i < cmd->num_fields; i++)
1104 {
1105 if (cmd->fields[i].out_value)
1106 {
1107 #ifdef _DEBUG_JTAG_IO_
1108 char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1109 #endif
1110 buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1111 #ifdef _DEBUG_JTAG_IO_
1112 LOG_DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1113 free(char_buf);
1114 #endif
1115 }
1116
1117 bit_count += cmd->fields[i].num_bits;
1118 }
1119
1120 return bit_count;
1121 }
1122
1123 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1124 {
1125 int i;
1126 int bit_count = 0;
1127 int retval;
1128
1129 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1130 retval = ERROR_OK;
1131
1132 for (i = 0; i < cmd->num_fields; i++)
1133 {
1134 /* if neither in_value nor in_handler
1135 * are specified we don't have to examine this field
1136 */
1137 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1138 {
1139 int num_bits = cmd->fields[i].num_bits;
1140 u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1141
1142 #ifdef _DEBUG_JTAG_IO_
1143 char *char_buf;
1144
1145 char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1146 LOG_DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1147 free(char_buf);
1148 #endif
1149
1150 if (cmd->fields[i].in_value)
1151 {
1152 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1153
1154 if (cmd->fields[i].in_handler)
1155 {
1156 if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1157 {
1158 LOG_WARNING("in_handler reported a failed check");
1159 retval = ERROR_JTAG_QUEUE_FAILED;
1160 }
1161 }
1162 }
1163
1164 /* no in_value specified, but a handler takes care of the scanned data */
1165 if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1166 {
1167 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1168 {
1169 /* We're going to call the error:handler later, but if the in_handler
1170 * reported an error we report this failure upstream
1171 */
1172 LOG_WARNING("in_handler reported a failed check");
1173 retval = ERROR_JTAG_QUEUE_FAILED;
1174 }
1175 }
1176
1177 free(captured);
1178 }
1179 bit_count += cmd->fields[i].num_bits;
1180 }
1181
1182 return retval;
1183 }
1184
1185 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1186 {
1187 int retval = ERROR_OK;
1188 int num_bits = field->num_bits;
1189
1190 int compare_failed = 0;
1191
1192 if (field->in_check_mask)
1193 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1194 else
1195 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1196
1197 if (compare_failed)
1198 {
1199 /* An error handler could have caught the failing check
1200 * only report a problem when there wasn't a handler, or if the handler
1201 * acknowledged the error
1202 */
1203 if (compare_failed)
1204 {
1205 char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1206 char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1207
1208 if (field->in_check_mask)
1209 {
1210 char *in_check_mask_char;
1211 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1212 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);
1213 free(in_check_mask_char);
1214 }
1215 else
1216 {
1217 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1218 }
1219
1220 free(captured_char);
1221 free(in_check_value_char);
1222
1223 retval = ERROR_JTAG_QUEUE_FAILED;
1224 }
1225
1226 }
1227 return retval;
1228 }
1229
1230 /*
1231 set up checking of this field using the in_handler. The values passed in must be valid until
1232 after jtag_execute() has completed.
1233 */
1234 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1235 {
1236 if (value)
1237 field->in_handler = jtag_check_value;
1238 else
1239 field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1240 field->in_handler_priv = NULL;
1241 field->in_check_value = value;
1242 field->in_check_mask = mask;
1243 }
1244
1245 enum scan_type jtag_scan_type(scan_command_t *cmd)
1246 {
1247 int i;
1248 int type = 0;
1249
1250 for (i = 0; i < cmd->num_fields; i++)
1251 {
1252 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1253 type |= SCAN_IN;
1254 if (cmd->fields[i].out_value)
1255 type |= SCAN_OUT;
1256 }
1257
1258 return type;
1259 }
1260
1261 int MINIDRIVER(interface_jtag_execute_queue)(void)
1262 {
1263 int retval;
1264
1265 if (jtag==NULL)
1266 {
1267 LOG_ERROR("No JTAG interface configured yet. Issue 'init' command in startup scripts before communicating with targets.");
1268 return ERROR_FAIL;
1269 }
1270
1271 retval = jtag->execute_queue();
1272
1273 cmd_queue_free();
1274
1275 jtag_command_queue = NULL;
1276 last_comand_pointer = &jtag_command_queue;
1277
1278 return retval;
1279 }
1280
1281 int jtag_execute_queue(void)
1282 {
1283 int retval=interface_jtag_execute_queue();
1284 if (retval==ERROR_OK)
1285 {
1286 retval=jtag_error;
1287 }
1288 jtag_error=ERROR_OK;
1289 return retval;
1290 }
1291
1292 int jtag_reset_callback(enum jtag_event event, void *priv)
1293 {
1294 jtag_device_t *device = priv;
1295
1296 LOG_DEBUG("-");
1297
1298 if (event == JTAG_TRST_ASSERTED)
1299 {
1300 buf_set_ones(device->cur_instr, device->ir_length);
1301 device->bypass = 1;
1302 }
1303
1304 return ERROR_OK;
1305 }
1306
1307 void jtag_sleep(u32 us)
1308 {
1309 usleep(us);
1310 }
1311
1312 /* Try to examine chain layout according to IEEE 1149.1 §12
1313 */
1314 int jtag_examine_chain()
1315 {
1316 jtag_device_t *device = jtag_devices;
1317 scan_field_t field;
1318 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1319 int i;
1320 int bit_count;
1321 int device_count = 0;
1322 u8 zero_check = 0x0;
1323 u8 one_check = 0xff;
1324
1325 field.device = 0;
1326 field.num_bits = sizeof(idcode_buffer) * 8;
1327 field.out_value = idcode_buffer;
1328 field.out_mask = NULL;
1329 field.in_value = idcode_buffer;
1330 field.in_check_value = NULL;
1331 field.in_check_mask = NULL;
1332 field.in_handler = NULL;
1333 field.in_handler_priv = NULL;
1334
1335 for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1336 {
1337 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1338 }
1339
1340 jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1341 jtag_execute_queue();
1342
1343 for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1344 {
1345 zero_check |= idcode_buffer[i];
1346 one_check &= idcode_buffer[i];
1347 }
1348
1349 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1350 if ((zero_check == 0x00) || (one_check == 0xff))
1351 {
1352 LOG_ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1353 return ERROR_JTAG_INIT_FAILED;
1354 }
1355
1356 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1357 {
1358 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1359 if ((idcode & 1) == 0)
1360 {
1361 /* LSB must not be 0, this indicates a device in bypass */
1362 device_count++;
1363
1364 LOG_WARNING("Device was in bypass after TRST/TMS reset");
1365
1366 bit_count += 1;
1367 }
1368 else
1369 {
1370 u32 manufacturer;
1371 u32 part;
1372 u32 version;
1373
1374 if (idcode == 0x000000FF)
1375 {
1376 int unexpected=0;
1377 /* End of chain (invalid manufacturer ID)
1378 *
1379 * The JTAG examine is the very first thing that happens
1380 *
1381 * A single JTAG device requires only 64 bits to be read back correctly.
1382 *
1383 * The code below adds a check that the rest of the data scanned (640 bits)
1384 * are all as expected. This helps diagnose/catch problems with the JTAG chain
1385 *
1386 * earlier and gives more helpful/explicit error messages.
1387 */
1388 for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
1389 {
1390 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1391 if (unexpected||(idcode != 0x000000FF))
1392 {
1393 LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode);
1394 unexpected = 1;
1395 }
1396 }
1397
1398 break;
1399 }
1400
1401 if (device)
1402 {
1403 device->idcode = idcode;
1404 device = device->next;
1405 }
1406 device_count++;
1407
1408 manufacturer = (idcode & 0xffe) >> 1;
1409 part = (idcode & 0xffff000) >> 12;
1410 version = (idcode & 0xf0000000) >> 28;
1411
1412 LOG_INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1413 idcode, manufacturer, part, version);
1414
1415 bit_count += 32;
1416 }
1417 }
1418
1419 /* see if number of discovered devices matches configuration */
1420 if (device_count != jtag_num_devices)
1421 {
1422 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1423 device_count, jtag_num_devices);
1424 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1425 return ERROR_JTAG_INIT_FAILED;
1426 }
1427
1428 return ERROR_OK;
1429 }
1430
1431 int jtag_validate_chain()
1432 {
1433 jtag_device_t *device = jtag_devices;
1434 int total_ir_length = 0;
1435 u8 *ir_test = NULL;
1436 scan_field_t field;
1437 int chain_pos = 0;
1438
1439 while (device)
1440 {
1441 total_ir_length += device->ir_length;
1442 device = device->next;
1443 }
1444
1445 total_ir_length += 2;
1446 ir_test = malloc(CEIL(total_ir_length, 8));
1447 buf_set_ones(ir_test, total_ir_length);
1448
1449 field.device = 0;
1450 field.num_bits = total_ir_length;
1451 field.out_value = ir_test;
1452 field.out_mask = NULL;
1453 field.in_value = ir_test;
1454 field.in_check_value = NULL;
1455 field.in_check_mask = NULL;
1456 field.in_handler = NULL;
1457 field.in_handler_priv = NULL;
1458
1459 jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1460 jtag_execute_queue();
1461
1462 device = jtag_devices;
1463 while (device)
1464 {
1465 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1466 {
1467 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1468 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1469 free(cbuf);
1470 free(ir_test);
1471 return ERROR_JTAG_INIT_FAILED;
1472 }
1473 chain_pos += device->ir_length;
1474 device = device->next;
1475 }
1476
1477 if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1478 {
1479 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1480 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1481 free(cbuf);
1482 free(ir_test);
1483 return ERROR_JTAG_INIT_FAILED;
1484 }
1485
1486 free(ir_test);
1487
1488 return ERROR_OK;
1489 }
1490
1491 int jtag_register_commands(struct command_context_s *cmd_ctx)
1492 {
1493 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1494 COMMAND_CONFIG, NULL);
1495 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1496 COMMAND_ANY, "set jtag speed (if supported)");
1497 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
1498 COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
1499 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1500 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1501 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1502 COMMAND_CONFIG, NULL);
1503 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1504 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
1505 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1506 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
1507
1508 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1509 COMMAND_EXEC, "print current scan chain configuration");
1510
1511 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1512 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1513 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1514 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1515 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1516 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1517 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1518 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1519 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
1520
1521 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1522 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1523 return ERROR_OK;
1524 }
1525
1526 int jtag_interface_init(struct command_context_s *cmd_ctx)
1527 {
1528 if (jtag)
1529 return ERROR_OK;
1530
1531 if (!jtag_interface)
1532 {
1533 /* nothing was previously specified by "interface" command */
1534 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
1535 return ERROR_JTAG_INVALID_INTERFACE;
1536 }
1537 if(hasKHz)
1538 {
1539 jtag_interface->khz(speed_khz, &jtag_speed);
1540 hasKHz = 0;
1541 }
1542
1543 if (jtag_interface->init() != ERROR_OK)
1544 return ERROR_JTAG_INIT_FAILED;
1545
1546
1547
1548 jtag = jtag_interface;
1549 return ERROR_OK;
1550 }
1551
1552 static int jtag_init_inner(struct command_context_s *cmd_ctx)
1553 {
1554 int validate_tries = 0;
1555 jtag_device_t *device;
1556 int retval;
1557
1558 LOG_DEBUG("Init JTAG chain");
1559
1560 device = jtag_devices;
1561 jtag_ir_scan_size = 0;
1562 jtag_num_devices = 0;
1563 while (device != NULL)
1564 {
1565 jtag_ir_scan_size += device->ir_length;
1566 jtag_num_devices++;
1567 device = device->next;
1568 }
1569
1570 jtag_add_tlr();
1571 if ((retval=jtag_execute_queue())!=ERROR_OK)
1572 return retval;
1573
1574 /* examine chain first, as this could discover the real chain layout */
1575 if (jtag_examine_chain() != ERROR_OK)
1576 {
1577 LOG_ERROR("trying to validate configured JTAG chain anyway...");
1578 }
1579
1580 while (jtag_validate_chain() != ERROR_OK)
1581 {
1582 validate_tries++;
1583
1584 if (validate_tries > 5)
1585 {
1586 LOG_ERROR("Could not validate JTAG chain, exit");
1587 return ERROR_JTAG_INVALID_INTERFACE;
1588 }
1589 usleep(10000);
1590 }
1591
1592 return ERROR_OK;
1593 }
1594
1595 int jtag_init_reset(struct command_context_s *cmd_ctx)
1596 {
1597 int retval;
1598
1599 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1600 return retval;
1601
1602 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / TLR");
1603
1604 /* Reset can happen after a power cycle.
1605 *
1606 * Ideally we would only assert TRST or run TLR before the target reset.
1607 *
1608 * However w/srst_pulls_trst, trst is asserted together with the target
1609 * reset whether we want it or not.
1610 *
1611 * NB! Some targets have JTAG circuitry disabled until a
1612 * trst & srst has been asserted.
1613 *
1614 * NB! here we assume nsrst/ntrst delay are sufficient!
1615 *
1616 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
1617 *
1618 */
1619 jtag_add_reset(1, 0); /* TLR or TRST */
1620 if (jtag_reset_config & RESET_HAS_SRST)
1621 {
1622 jtag_add_reset(1, 1);
1623 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
1624 jtag_add_reset(0, 1);
1625 }
1626 jtag_add_reset(0, 0);
1627 if ((retval = jtag_execute_queue()) != ERROR_OK)
1628 return retval;
1629
1630 /* Check that we can communication on the JTAG chain + eventually we want to
1631 * be able to perform enumeration only after OpenOCD has started
1632 * telnet and GDB server
1633 *
1634 * That would allow users to more easily perform any magic they need to before
1635 * reset happens.
1636 */
1637 return jtag_init_inner(cmd_ctx);
1638 }
1639
1640 int jtag_init(struct command_context_s *cmd_ctx)
1641 {
1642 int retval;
1643 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
1644 return retval;
1645 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
1646 {
1647 return ERROR_OK;
1648 }
1649 return jtag_init_reset(cmd_ctx);
1650 }
1651
1652 static int default_khz(int khz, int *jtag_speed)
1653 {
1654 LOG_ERROR("Translation from khz to jtag_speed not implemented");
1655 return ERROR_FAIL;
1656 }
1657
1658 static int default_speed_div(int speed, int *khz)
1659 {
1660 return ERROR_FAIL;
1661 }
1662
1663 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1664 {
1665 int i;
1666
1667 /* check whether the interface is already configured */
1668 if (jtag_interface)
1669 {
1670 LOG_WARNING("Interface already configured, ignoring");
1671 return ERROR_OK;
1672 }
1673
1674 /* interface name is a mandatory argument */
1675 if (argc < 1 || args[0][0] == '\0')
1676 {
1677 return ERROR_COMMAND_SYNTAX_ERROR;
1678 }
1679
1680 for (i=0; jtag_interfaces[i]; i++)
1681 {
1682 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1683 {
1684 if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1685 exit(-1);
1686
1687 jtag_interface = jtag_interfaces[i];
1688
1689 if (jtag_interface->khz == NULL)
1690 {
1691 jtag_interface->khz = default_khz;
1692 }
1693 if (jtag_interface->speed_div == NULL)
1694 {
1695 jtag_interface->speed_div = default_speed_div;
1696 }
1697 return ERROR_OK;
1698 }
1699 }
1700
1701 /* no valid interface was found (i.e. the configuration option,
1702 * didn't match one of the compiled-in interfaces
1703 */
1704 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
1705 LOG_ERROR("compiled-in jtag interfaces:");
1706 for (i = 0; jtag_interfaces[i]; i++)
1707 {
1708 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
1709 }
1710
1711 return ERROR_JTAG_INVALID_INTERFACE;
1712 }
1713
1714 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1715 {
1716 jtag_device_t **last_device_p = &jtag_devices;
1717
1718 if (*last_device_p)
1719 {
1720 while ((*last_device_p)->next)
1721 last_device_p = &((*last_device_p)->next);
1722 last_device_p = &((*last_device_p)->next);
1723 }
1724
1725 if (argc < 3)
1726 return ERROR_OK;
1727
1728 *last_device_p = malloc(sizeof(jtag_device_t));
1729 (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1730
1731 (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1732 buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1733 (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1734 buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1735
1736 (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1737 (*last_device_p)->bypass = 1;
1738 buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1739
1740 (*last_device_p)->next = NULL;
1741
1742 jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1743
1744 jtag_num_devices++;
1745
1746 return ERROR_OK;
1747 }
1748
1749 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1750 {
1751 jtag_device_t *device = jtag_devices;
1752 int device_count = 0;
1753
1754 while (device)
1755 {
1756 u32 expected, expected_mask, cur_instr;
1757 expected = buf_get_u32(device->expected, 0, device->ir_length);
1758 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1759 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1760 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);
1761 device = device->next;
1762 device_count++;
1763 }
1764
1765 return ERROR_OK;
1766 }
1767
1768 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1769 {
1770 if (argc < 1)
1771 return ERROR_COMMAND_SYNTAX_ERROR;
1772
1773 if (argc >= 1)
1774 {
1775 if (strcmp(args[0], "none") == 0)
1776 jtag_reset_config = RESET_NONE;
1777 else if (strcmp(args[0], "trst_only") == 0)
1778 jtag_reset_config = RESET_HAS_TRST;
1779 else if (strcmp(args[0], "srst_only") == 0)
1780 jtag_reset_config = RESET_HAS_SRST;
1781 else if (strcmp(args[0], "trst_and_srst") == 0)
1782 jtag_reset_config = RESET_TRST_AND_SRST;
1783 else
1784 {
1785 LOG_ERROR("invalid reset_config argument, defaulting to none");
1786 jtag_reset_config = RESET_NONE;
1787 return ERROR_INVALID_ARGUMENTS;
1788 }
1789 }
1790
1791 if (argc >= 2)
1792 {
1793 if (strcmp(args[1], "separate") == 0)
1794 {
1795 /* seperate reset lines - default */
1796 } else
1797 {
1798 if (strcmp(args[1], "srst_pulls_trst") == 0)
1799 jtag_reset_config |= RESET_SRST_PULLS_TRST;
1800 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1801 jtag_reset_config |= RESET_TRST_PULLS_SRST;
1802 else if (strcmp(args[1], "combined") == 0)
1803 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1804 else
1805 {
1806 LOG_ERROR("invalid reset_config argument, defaulting to none");
1807 jtag_reset_config = RESET_NONE;
1808 return ERROR_INVALID_ARGUMENTS;
1809 }
1810 }
1811 }
1812
1813 if (argc >= 3)
1814 {
1815 if (strcmp(args[2], "trst_open_drain") == 0)
1816 jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1817 else if (strcmp(args[2], "trst_push_pull") == 0)
1818 jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1819 else
1820 {
1821 LOG_ERROR("invalid reset_config argument, defaulting to none");
1822 jtag_reset_config = RESET_NONE;
1823 return ERROR_INVALID_ARGUMENTS;
1824 }
1825 }
1826
1827 if (argc >= 4)
1828 {
1829 if (strcmp(args[3], "srst_push_pull") == 0)
1830 jtag_reset_config |= RESET_SRST_PUSH_PULL;
1831 else if (strcmp(args[3], "srst_open_drain") == 0)
1832 jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1833 else
1834 {
1835 LOG_ERROR("invalid reset_config argument, defaulting to none");
1836 jtag_reset_config = RESET_NONE;
1837 return ERROR_INVALID_ARGUMENTS;
1838 }
1839 }
1840
1841 return ERROR_OK;
1842 }
1843
1844 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1845 {
1846 if (argc < 1)
1847 {
1848 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1849 exit(-1);
1850 }
1851 else
1852 {
1853 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1854 }
1855
1856 return ERROR_OK;
1857 }
1858
1859 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1860 {
1861 if (argc < 1)
1862 {
1863 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1864 exit(-1);
1865 }
1866 else
1867 {
1868 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1869 }
1870
1871 return ERROR_OK;
1872 }
1873
1874 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1875 {
1876 int retval=ERROR_OK;
1877
1878 if (argc == 1)
1879 {
1880 LOG_DEBUG("handle jtag speed");
1881
1882 int cur_speed = 0;
1883 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
1884
1885 /* this command can be called during CONFIG,
1886 * in which case jtag isn't initialized */
1887 if (jtag)
1888 {
1889 retval=jtag->speed(cur_speed);
1890 }
1891 } else if (argc == 0)
1892 {
1893 } else
1894 {
1895 retval=ERROR_COMMAND_SYNTAX_ERROR;
1896 }
1897 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
1898
1899 return retval;
1900 }
1901
1902 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1903 {
1904 int retval=ERROR_OK;
1905 LOG_DEBUG("handle jtag khz");
1906
1907 if(argc == 1)
1908 {
1909 speed_khz = strtoul(args[0], NULL, 0);
1910 if (jtag != NULL)
1911 {
1912 int cur_speed = 0;
1913 LOG_DEBUG("have interface set up");
1914 int speed_div1;
1915 if ((retval=jtag->khz(speed_khz, &speed_div1))!=ERROR_OK)
1916 {
1917 speed_khz = 0;
1918 return retval;
1919 }
1920
1921 cur_speed = jtag_speed = speed_div1;
1922
1923 retval=jtag->speed(cur_speed);
1924 } else
1925 {
1926 hasKHz = 1;
1927 }
1928 } else if (argc==0)
1929 {
1930 } else
1931 {
1932 retval=ERROR_COMMAND_SYNTAX_ERROR;
1933 }
1934 command_print(cmd_ctx, "jtag_khz: %d", speed_khz);
1935 return retval;
1936
1937 }
1938
1939 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1940 {
1941 enum tap_state state;
1942
1943 if (argc < 1)
1944 {
1945 return ERROR_COMMAND_SYNTAX_ERROR;
1946 }
1947 else
1948 {
1949 for (state = 0; state < 16; state++)
1950 {
1951 if (strcmp(args[0], tap_state_strings[state]) == 0)
1952 {
1953 jtag_add_end_state(state);
1954 jtag_execute_queue();
1955 }
1956 }
1957 }
1958 command_print(cmd_ctx, "current endstate: %s", tap_state_strings[cmd_queue_end_state]);
1959
1960 return ERROR_OK;
1961 }
1962
1963 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1964 {
1965 int trst = -1;
1966 int srst = -1;
1967
1968 if (argc < 2)
1969 {
1970 return ERROR_COMMAND_SYNTAX_ERROR;
1971 }
1972
1973 if (args[0][0] == '1')
1974 trst = 1;
1975 else if (args[0][0] == '0')
1976 trst = 0;
1977 else
1978 {
1979 return ERROR_COMMAND_SYNTAX_ERROR;
1980 }
1981
1982 if (args[1][0] == '1')
1983 srst = 1;
1984 else if (args[1][0] == '0')
1985 srst = 0;
1986 else
1987 {
1988 return ERROR_COMMAND_SYNTAX_ERROR;
1989 }
1990
1991 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
1992 return ERROR_JTAG_INIT_FAILED;
1993
1994 jtag_add_reset(trst, srst);
1995 jtag_execute_queue();
1996
1997 return ERROR_OK;
1998 }
1999
2000 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2001 {
2002 if (argc < 1)
2003 {
2004 return ERROR_COMMAND_SYNTAX_ERROR;
2005 }
2006
2007 jtag_add_runtest(strtol(args[0], NULL, 0), -1);
2008 jtag_execute_queue();
2009
2010 return ERROR_OK;
2011
2012 }
2013
2014 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2015 {
2016 int i;
2017 scan_field_t *fields;
2018
2019 if ((argc < 2) || (argc % 2))
2020 {
2021 return ERROR_COMMAND_SYNTAX_ERROR;
2022 }
2023
2024 fields = malloc(sizeof(scan_field_t) * argc / 2);
2025
2026 for (i = 0; i < argc / 2; i++)
2027 {
2028 int device = strtoul(args[i*2], NULL, 0);
2029 int field_size = jtag_get_device(device)->ir_length;
2030 fields[i].device = device;
2031 fields[i].out_value = malloc(CEIL(field_size, 8));
2032 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2033 fields[i].out_mask = NULL;
2034 fields[i].in_value = NULL;
2035 fields[i].in_check_mask = NULL;
2036 fields[i].in_handler = NULL;
2037 fields[i].in_handler_priv = NULL;
2038 }
2039
2040 jtag_add_ir_scan(argc / 2, fields, -1);
2041 jtag_execute_queue();
2042
2043 for (i = 0; i < argc / 2; i++)
2044 free(fields[i].out_value);
2045
2046 free (fields);
2047
2048 return ERROR_OK;
2049 }
2050
2051 int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2052 {
2053 int retval;
2054 scan_field_t *fields;
2055 int num_fields;
2056 int field_count = 0;
2057 int i, e;
2058 long device;
2059
2060 /* args[1] = device
2061 * args[2] = num_bits
2062 * args[3] = hex string
2063 * ... repeat num bits and hex string ...
2064 */
2065 if ((argc < 4) || ((argc % 2)!=0))
2066 {
2067 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2068 return JIM_ERR;
2069 }
2070
2071 for (i = 2; i < argc; i+=2)
2072 {
2073 long bits;
2074
2075 e = Jim_GetLong(interp, args[i], &bits);
2076 if (e != JIM_OK)
2077 return e;
2078 }
2079
2080 e = Jim_GetLong(interp, args[1], &device);
2081 if (e != JIM_OK)
2082 return e;
2083
2084 num_fields=(argc-2)/2;
2085 fields = malloc(sizeof(scan_field_t) * num_fields);
2086 for (i = 2; i < argc; i+=2)
2087 {
2088 long bits;
2089 int len;
2090 const char *str;
2091
2092 Jim_GetLong(interp, args[i], &bits);
2093 str = Jim_GetString(args[i+1], &len);
2094
2095 fields[field_count].device = device;
2096 fields[field_count].num_bits = bits;
2097 fields[field_count].out_value = malloc(CEIL(bits, 8));
2098 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2099 fields[field_count].out_mask = NULL;
2100 fields[field_count].in_value = fields[field_count].out_value;
2101 fields[field_count].in_check_mask = NULL;
2102 fields[field_count].in_check_value = NULL;
2103 fields[field_count].in_handler = NULL;
2104 fields[field_count++].in_handler_priv = NULL;
2105 }
2106
2107 jtag_add_dr_scan(num_fields, fields, -1);
2108 retval = jtag_execute_queue();
2109 if (retval != ERROR_OK)
2110 {
2111 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2112 Jim_AppendStrings(interp, Jim_GetResult(interp), "drscan: jtag execute failed", NULL);
2113 return JIM_ERR;
2114 }
2115
2116 field_count=0;
2117 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2118 for (i = 2; i < argc; i+=2)
2119 {
2120 long bits;
2121 char *str;
2122
2123 Jim_GetLong(interp, args[i], &bits);
2124 str = buf_to_str(fields[field_count].in_value, bits, 16);
2125 free(fields[field_count].out_value);
2126
2127 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2128 free(str);
2129 field_count++;
2130 }
2131
2132 Jim_SetResult(interp, list);
2133
2134 free(fields);
2135
2136 return JIM_OK;
2137 }
2138
2139 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2140 {
2141 if (argc == 1)
2142 {
2143 if (strcmp(args[0], "enable") == 0)
2144 {
2145 jtag_verify_capture_ir = 1;
2146 }
2147 else if (strcmp(args[0], "disable") == 0)
2148 {
2149 jtag_verify_capture_ir = 0;
2150 } else
2151 {
2152 return ERROR_COMMAND_SYNTAX_ERROR;
2153 }
2154 } else if (argc != 0)
2155 {
2156 return ERROR_COMMAND_SYNTAX_ERROR;
2157 }
2158
2159 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2160
2161 return ERROR_OK;
2162 }
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