1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
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. *
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. *
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 ***************************************************************************/
24 #include "replacements.h"
30 #include "interpreter.h"
37 /* note that this is not marked as static as it must be available from outside jtag.c for those
38 that implement the jtag_xxx() minidriver layer
40 int jtag_error=ERROR_OK;
43 char* tap_state_strings[16] =
46 "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
48 "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
51 typedef struct cmd_queue_page_s
55 struct cmd_queue_page_s *next;
58 #define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
59 static cmd_queue_page_t *cmd_queue_pages = NULL;
61 /* tap_move[i][j]: tap movement command to go from state i to state j
69 * SD->SD and SI->SI have to be caught in interface specific code
73 /* TLR RTI SD PD SI PI */
74 {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
75 {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
76 {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
77 {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
78 {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
79 {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
82 int tap_move_map[16] = {
83 0, -1, -1, 2, -1, 3, -1, -1,
84 1, -1, -1, 4, -1, 5, -1, -1
87 tap_transition_t tap_transitions[16] =
89 {TAP_TLR, TAP_RTI}, /* TLR */
90 {TAP_SIS, TAP_CD}, /* SDS */
91 {TAP_E1D, TAP_SD}, /* CD */
92 {TAP_E1D, TAP_SD}, /* SD */
93 {TAP_UD, TAP_PD}, /* E1D */
94 {TAP_E2D, TAP_PD}, /* PD */
95 {TAP_UD, TAP_SD}, /* E2D */
96 {TAP_SDS, TAP_RTI}, /* UD */
97 {TAP_SDS, TAP_RTI}, /* RTI */
98 {TAP_TLR, TAP_CI}, /* SIS */
99 {TAP_E1I, TAP_SI}, /* CI */
100 {TAP_E1I, TAP_SI}, /* SI */
101 {TAP_UI, TAP_PI}, /* E1I */
102 {TAP_E2I, TAP_PI}, /* PI */
103 {TAP_UI, TAP_SI}, /* E2I */
104 {TAP_SDS, TAP_RTI} /* UI */
107 char* jtag_event_strings[] =
109 "JTAG controller reset(tms or TRST)"
112 enum tap_state end_state = TAP_TLR;
113 enum tap_state cur_state = TAP_TLR;
117 jtag_command_t *jtag_command_queue = NULL;
118 jtag_command_t **last_comand_pointer = &jtag_command_queue;
119 jtag_device_t *jtag_devices = NULL;
120 int jtag_num_devices = 0;
121 int jtag_ir_scan_size = 0;
122 enum reset_types jtag_reset_config = RESET_NONE;
123 enum tap_state cmd_queue_end_state = TAP_TLR;
124 enum tap_state cmd_queue_cur_state = TAP_TLR;
126 int jtag_verify_capture_ir = 1;
128 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
129 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
130 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
132 /* maximum number of JTAG devices expected in the chain
134 #define JTAG_MAX_CHAIN_SIZE 20
136 /* callbacks to inform high-level handlers about JTAG state changes */
137 jtag_event_callback_t *jtag_event_callbacks;
139 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
142 #if BUILD_ECOSBOARD == 1
143 extern jtag_interface_t eCosBoard_interface;
146 #if BUILD_PARPORT == 1
147 extern jtag_interface_t parport_interface;
150 #if BUILD_FT2232_FTD2XX == 1
151 extern jtag_interface_t ft2232_interface;
154 #if BUILD_FT2232_LIBFTDI == 1
155 extern jtag_interface_t ft2232_interface;
158 #if BUILD_AMTJTAGACCEL == 1
159 extern jtag_interface_t amt_jtagaccel_interface;
162 #if BUILD_EP93XX == 1
163 extern jtag_interface_t ep93xx_interface;
166 #if BUILD_AT91RM9200 == 1
167 extern jtag_interface_t at91rm9200_interface;
170 #if BUILD_GW16012 == 1
171 extern jtag_interface_t gw16012_interface;
174 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
175 extern jtag_interface_t presto_interface;
178 #if BUILD_USBPROG == 1
179 extern jtag_interface_t usbprog_interface;
182 jtag_interface_t *jtag_interfaces[] = {
183 #if BUILD_ECOSBOARD == 1
184 &eCosBoard_interface,
186 #if BUILD_PARPORT == 1
189 #if BUILD_FT2232_FTD2XX == 1
192 #if BUILD_FT2232_LIBFTDI == 1
195 #if BUILD_AMTJTAGACCEL == 1
196 &amt_jtagaccel_interface,
198 #if BUILD_EP93XX == 1
201 #if BUILD_AT91RM9200 == 1
202 &at91rm9200_interface,
204 #if BUILD_GW16012 == 1
207 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
210 #if BUILD_USBPROG == 1
216 jtag_interface_t *jtag = NULL;
219 jtag_interface_t *jtag_interface = NULL;
221 int jtag_speed_post_reset = 0;
224 /* forward declarations */
225 void jtag_add_statemove(enum tap_state endstate);
226 void jtag_add_pathmove(int num_states, enum tap_state *path);
227 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
228 int jtag_add_reset(int trst, int srst);
229 void jtag_add_end_state(enum tap_state endstate);
230 void jtag_add_sleep(u32 us);
231 int jtag_execute_queue(void);
232 int jtag_cancel_queue(void);
235 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
236 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
237 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
238 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
239 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
240 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
242 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
244 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
245 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
246 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
247 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
248 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
249 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
251 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
253 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
255 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
257 if (callback == NULL)
259 return ERROR_INVALID_ARGUMENTS;
264 while ((*callbacks_p)->next)
265 callbacks_p = &((*callbacks_p)->next);
266 callbacks_p = &((*callbacks_p)->next);
269 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
270 (*callbacks_p)->callback = callback;
271 (*callbacks_p)->priv = priv;
272 (*callbacks_p)->next = NULL;
277 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
279 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
281 if (callback == NULL)
283 return ERROR_INVALID_ARGUMENTS;
288 jtag_event_callback_t **next = &((*callbacks_p)->next);
289 if ((*callbacks_p)->callback == callback)
292 *callbacks_p = *next;
300 int jtag_call_event_callbacks(enum jtag_event event)
302 jtag_event_callback_t *callback = jtag_event_callbacks;
304 DEBUG("jtag event: %s", jtag_event_strings[event]);
308 callback->callback(event, callback->priv);
309 callback = callback->next;
315 /* returns a pointer to the pointer of the last command in queue
316 * this may be a pointer to the root pointer (jtag_command_queue)
317 * or to the next member of the last but one command
319 jtag_command_t** jtag_get_last_command_p(void)
321 /* jtag_command_t *cmd = jtag_command_queue;
327 return &jtag_command_queue;
331 return last_comand_pointer;
334 /* returns a pointer to the n-th device in the scan chain */
335 jtag_device_t* jtag_get_device(int num)
337 jtag_device_t *device = jtag_devices;
344 device = device->next;
348 ERROR("jtag device number %d not defined", num);
352 void* cmd_queue_alloc(size_t size)
354 cmd_queue_page_t **p_page = &cmd_queue_pages;
359 while ((*p_page)->next)
360 p_page = &((*p_page)->next);
361 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
362 p_page = &((*p_page)->next);
367 *p_page = malloc(sizeof(cmd_queue_page_t));
369 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
370 (*p_page)->next = NULL;
373 offset = (*p_page)->used;
374 (*p_page)->used += size;
376 u8 *t=(u8 *)((*p_page)->address);
380 void cmd_queue_free()
382 cmd_queue_page_t *page = cmd_queue_pages;
386 cmd_queue_page_t *last = page;
392 cmd_queue_pages = NULL;
395 static void jtag_prelude1()
399 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
400 jtag_error=ERROR_JTAG_TRST_ASSERTED;
404 if (cmd_queue_end_state == TAP_TLR)
405 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
408 static void jtag_prelude(enum tap_state state)
413 cmd_queue_end_state = state;
415 cmd_queue_cur_state = cmd_queue_end_state;
418 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
422 int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
423 if (retval!=ERROR_OK)
427 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
429 jtag_command_t **last_cmd;
430 jtag_device_t *device;
435 last_cmd = jtag_get_last_command_p();
437 /* allocate memory for a new list member */
438 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
439 (*last_cmd)->next = NULL;
440 last_comand_pointer = &((*last_cmd)->next);
441 (*last_cmd)->type = JTAG_SCAN;
443 /* allocate memory for ir scan command */
444 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
445 (*last_cmd)->cmd.scan->ir_scan = 1;
446 (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
447 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
448 (*last_cmd)->cmd.scan->end_state = state;
450 for (i = 0; i < jtag_num_devices; i++)
453 device = jtag_get_device(i);
454 scan_size = device->ir_length;
455 (*last_cmd)->cmd.scan->fields[i].device = i;
456 (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
457 (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
458 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
460 /* search the list */
461 for (j = 0; j < num_fields; j++)
463 if (i == fields[j].device)
466 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
467 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
469 if (jtag_verify_capture_ir)
471 if (fields[j].in_handler==NULL)
473 jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
476 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
477 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
478 (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
479 (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
490 /* if a device isn't listed, set it to BYPASS */
491 (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
492 (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
497 /* update device information */
498 buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
504 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
508 int retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
509 if (retval!=ERROR_OK)
513 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
516 jtag_command_t **last_cmd;
518 last_cmd = jtag_get_last_command_p();
520 /* allocate memory for a new list member */
521 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
522 (*last_cmd)->next = NULL;
523 last_comand_pointer = &((*last_cmd)->next);
524 (*last_cmd)->type = JTAG_SCAN;
526 /* allocate memory for ir scan command */
527 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
528 (*last_cmd)->cmd.scan->ir_scan = 1;
529 (*last_cmd)->cmd.scan->num_fields = num_fields;
530 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
531 (*last_cmd)->cmd.scan->end_state = state;
533 for (i = 0; i < num_fields; i++)
535 int num_bits = fields[i].num_bits;
536 int num_bytes = CEIL(fields[i].num_bits, 8);
537 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
538 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
539 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
540 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
541 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
542 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
543 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
544 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
545 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
550 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
554 int retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
555 if (retval!=ERROR_OK)
559 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
562 int bypass_devices = 0;
566 jtag_command_t **last_cmd = jtag_get_last_command_p();
567 jtag_device_t *device = jtag_devices;
569 /* count devices in bypass */
574 device = device->next;
577 /* allocate memory for a new list member */
578 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
579 last_comand_pointer = &((*last_cmd)->next);
580 (*last_cmd)->next = NULL;
581 (*last_cmd)->type = JTAG_SCAN;
583 /* allocate memory for dr scan command */
584 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
585 (*last_cmd)->cmd.scan->ir_scan = 0;
586 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
587 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
588 (*last_cmd)->cmd.scan->end_state = state;
590 for (i = 0; i < jtag_num_devices; i++)
593 (*last_cmd)->cmd.scan->fields[field_count].device = i;
595 for (j = 0; j < num_fields; j++)
597 if (i == fields[j].device)
600 scan_size = fields[j].num_bits;
601 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
602 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
603 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
604 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
605 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
606 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
607 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
608 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
613 #ifdef _DEBUG_JTAG_IO_
614 /* if a device isn't listed, the BYPASS register should be selected */
615 if (!jtag_get_device(i)->bypass)
617 ERROR("BUG: no scan data for a device not in BYPASS");
621 /* program the scan field to 1 bit length, and ignore it's value */
622 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
623 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
624 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
625 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
626 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
627 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
628 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
629 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
633 #ifdef _DEBUG_JTAG_IO_
634 /* if a device is listed, the BYPASS register must not be selected */
635 if (jtag_get_device(i)->bypass)
637 ERROR("BUG: scan data for a device in BYPASS");
646 void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
650 enum tap_state end_state)
655 int bypass_devices = 0;
657 jtag_command_t **last_cmd = jtag_get_last_command_p();
658 jtag_device_t *device = jtag_devices;
659 /* count devices in bypass */
664 device = device->next;
667 /* allocate memory for a new list member */
668 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
669 last_comand_pointer = &((*last_cmd)->next);
670 (*last_cmd)->next = NULL;
671 (*last_cmd)->type = JTAG_SCAN;
673 /* allocate memory for dr scan command */
674 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
675 (*last_cmd)->cmd.scan->ir_scan = 0;
676 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
677 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
678 (*last_cmd)->cmd.scan->end_state = end_state;
680 for (i = 0; i < jtag_num_devices; i++)
682 (*last_cmd)->cmd.scan->fields[field_count].device = i;
687 #ifdef _DEBUG_JTAG_IO_
688 /* if a device is listed, the BYPASS register must not be selected */
689 if (jtag_get_device(i)->bypass)
691 ERROR("BUG: scan data for a device in BYPASS");
695 for (j = 0; j < num_fields; j++)
698 scan_size = num_bits[j];
699 buf_set_u32(out_value, 0, scan_size, value[j]);
700 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
701 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
702 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
703 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
704 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
705 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
706 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
707 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
711 #ifdef _DEBUG_JTAG_IO_
712 /* if a device isn't listed, the BYPASS register should be selected */
713 if (!jtag_get_device(i)->bypass)
715 ERROR("BUG: no scan data for a device not in BYPASS");
719 /* program the scan field to 1 bit length, and ignore it's value */
720 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
721 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
722 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
723 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
724 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
725 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
726 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
727 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
735 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
739 int retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
740 if (retval!=ERROR_OK)
744 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
747 jtag_command_t **last_cmd = jtag_get_last_command_p();
749 /* allocate memory for a new list member */
750 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
751 last_comand_pointer = &((*last_cmd)->next);
752 (*last_cmd)->next = NULL;
753 (*last_cmd)->type = JTAG_SCAN;
755 /* allocate memory for scan command */
756 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
757 (*last_cmd)->cmd.scan->ir_scan = 0;
758 (*last_cmd)->cmd.scan->num_fields = num_fields;
759 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
760 (*last_cmd)->cmd.scan->end_state = state;
762 for (i = 0; i < num_fields; i++)
764 int num_bits = fields[i].num_bits;
765 int num_bytes = CEIL(fields[i].num_bits, 8);
766 (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
767 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
768 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
769 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
770 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
771 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
772 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
773 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
774 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
779 void jtag_add_statemove(enum tap_state state)
784 retval=interface_jtag_add_statemove(cmd_queue_end_state);
785 if (retval!=ERROR_OK)
789 int MINIDRIVER(interface_jtag_add_statemove)(enum tap_state state)
791 jtag_command_t **last_cmd = jtag_get_last_command_p();
793 /* allocate memory for a new list member */
794 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
795 last_comand_pointer = &((*last_cmd)->next);
796 (*last_cmd)->next = NULL;
797 (*last_cmd)->type = JTAG_STATEMOVE;
799 (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
800 (*last_cmd)->cmd.statemove->end_state = state;
806 void jtag_add_pathmove(int num_states, enum tap_state *path)
808 /* the last state has to be a stable state */
809 if (tap_move_map[path[num_states - 1]] == -1)
811 ERROR("BUG: TAP path doesn't finish in a stable state");
815 enum tap_state cur_state=cmd_queue_cur_state;
817 for (i=0; i<num_states; i++)
819 if ((tap_transitions[cur_state].low != path[i])&&
820 (tap_transitions[cur_state].high != path[i]))
822 ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
830 cmd_queue_cur_state = path[num_states - 1];
832 int retval=interface_jtag_add_pathmove(num_states, path);
833 if (retval!=ERROR_OK)
838 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
840 jtag_command_t **last_cmd = jtag_get_last_command_p();
843 /* allocate memory for a new list member */
844 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
845 last_comand_pointer = &((*last_cmd)->next);
846 (*last_cmd)->next = NULL;
847 (*last_cmd)->type = JTAG_PATHMOVE;
849 (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
850 (*last_cmd)->cmd.pathmove->num_states = num_states;
851 (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
853 for (i = 0; i < num_states; i++)
854 (*last_cmd)->cmd.pathmove->path[i] = path[i];
859 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
861 jtag_command_t **last_cmd = jtag_get_last_command_p();
863 /* allocate memory for a new list member */
864 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
865 (*last_cmd)->next = NULL;
866 last_comand_pointer = &((*last_cmd)->next);
867 (*last_cmd)->type = JTAG_RUNTEST;
869 (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
870 (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
871 (*last_cmd)->cmd.runtest->end_state = state;
876 void jtag_add_runtest(int num_cycles, enum tap_state state)
880 /* executed by sw or hw fifo */
881 int retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
882 if (retval!=ERROR_OK)
886 int jtag_add_reset(int req_trst, int req_srst)
888 int trst_with_tms = 0;
892 req_trst = jtag_trst;
895 req_srst = jtag_srst;
897 /* Make sure that jtag_reset_config allows the requested reset */
898 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
899 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
901 ERROR("requested reset would assert trst");
902 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
905 /* if TRST pulls SRST, we reset with TAP T-L-R */
906 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
912 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
914 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
915 return ERROR_JTAG_RESET_CANT_SRST;
918 if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
924 jtag_trst = req_trst;
925 jtag_srst = req_srst;
927 retval = interface_jtag_add_reset(req_trst, req_srst);
928 if (retval!=ERROR_OK)
936 DEBUG("SRST line asserted");
940 DEBUG("SRST line released");
941 if (jtag_nsrst_delay)
942 jtag_add_sleep(jtag_nsrst_delay * 1000);
947 DEBUG("JTAG reset with tms instead of TRST");
948 jtag_add_end_state(TAP_TLR);
949 jtag_add_statemove(TAP_TLR);
950 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
956 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
957 * and inform possible listeners about this
959 DEBUG("TRST line asserted");
960 cmd_queue_cur_state = TAP_TLR;
961 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
965 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
966 * but we might want to add a delay to give the TAP time to settle
968 DEBUG("Now in TAP_TLR - Test-Logic-Reset(either due to TRST line asserted or tms reset)");
969 if (jtag_ntrst_delay)
970 jtag_add_sleep(jtag_ntrst_delay * 1000);
975 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
977 jtag_command_t **last_cmd = jtag_get_last_command_p();
979 /* allocate memory for a new list member */
980 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
981 (*last_cmd)->next = NULL;
982 last_comand_pointer = &((*last_cmd)->next);
983 (*last_cmd)->type = JTAG_RESET;
985 (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
986 (*last_cmd)->cmd.reset->trst = req_trst;
987 (*last_cmd)->cmd.reset->srst = req_srst;
993 void jtag_add_end_state(enum tap_state state)
995 cmd_queue_end_state = state;
998 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1000 jtag_command_t **last_cmd = jtag_get_last_command_p();
1002 /* allocate memory for a new list member */
1003 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1004 (*last_cmd)->next = NULL;
1005 last_comand_pointer = &((*last_cmd)->next);
1006 (*last_cmd)->type = JTAG_SLEEP;
1008 (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1009 (*last_cmd)->cmd.sleep->us = us;
1014 void jtag_add_sleep(u32 us)
1016 int retval=interface_jtag_add_sleep(us);
1017 if (retval!=ERROR_OK)
1022 int jtag_scan_size(scan_command_t *cmd)
1027 /* count bits in scan command */
1028 for (i = 0; i < cmd->num_fields; i++)
1030 bit_count += cmd->fields[i].num_bits;
1036 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1041 bit_count = jtag_scan_size(cmd);
1042 *buffer = malloc(CEIL(bit_count, 8));
1046 for (i = 0; i < cmd->num_fields; i++)
1048 if (cmd->fields[i].out_value)
1050 #ifdef _DEBUG_JTAG_IO_
1051 char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1053 buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1054 #ifdef _DEBUG_JTAG_IO_
1055 DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
1060 bit_count += cmd->fields[i].num_bits;
1067 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1073 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1076 for (i = 0; i < cmd->num_fields; i++)
1078 /* if neither in_value nor in_handler
1079 * are specified we don't have to examine this field
1081 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1083 int num_bits = cmd->fields[i].num_bits;
1084 u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1086 #ifdef _DEBUG_JTAG_IO_
1089 char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1090 DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
1094 if (cmd->fields[i].in_value)
1096 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1098 if (cmd->fields[i].in_handler)
1100 if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1102 WARNING("in_handler reported a failed check");
1103 retval = ERROR_JTAG_QUEUE_FAILED;
1108 /* no in_value specified, but a handler takes care of the scanned data */
1109 if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1111 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1113 /* We're going to call the error:handler later, but if the in_handler
1114 * reported an error we report this failure upstream
1116 WARNING("in_handler reported a failed check");
1117 retval = ERROR_JTAG_QUEUE_FAILED;
1123 bit_count += cmd->fields[i].num_bits;
1129 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1131 int retval = ERROR_OK;
1132 int num_bits = field->num_bits;
1134 int compare_failed = 0;
1136 if (field->in_check_mask)
1137 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1139 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1143 /* An error handler could have caught the failing check
1144 * only report a problem when there wasn't a handler, or if the handler
1145 * acknowledged the error
1149 char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1150 char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1152 if (field->in_check_mask)
1154 char *in_check_mask_char;
1155 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1156 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);
1157 free(in_check_mask_char);
1161 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1164 free(captured_char);
1165 free(in_check_value_char);
1167 retval = ERROR_JTAG_QUEUE_FAILED;
1175 set up checking of this field using the in_handler. The values passed in must be valid until
1176 after jtag_execute() has completed.
1178 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1181 field->in_handler = jtag_check_value;
1183 field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1184 field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
1185 field->in_check_value = value;
1186 field->in_check_mask = mask;
1189 enum scan_type jtag_scan_type(scan_command_t *cmd)
1194 for (i = 0; i < cmd->num_fields; i++)
1196 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1198 if (cmd->fields[i].out_value)
1205 int MINIDRIVER(interface_jtag_execute_queue)(void)
1209 retval = jtag->execute_queue();
1213 jtag_command_queue = NULL;
1214 last_comand_pointer = &jtag_command_queue;
1219 int jtag_execute_queue(void)
1221 int retval=interface_jtag_execute_queue();
1222 if (retval==ERROR_OK)
1226 jtag_error=ERROR_OK;
1230 int jtag_reset_callback(enum jtag_event event, void *priv)
1232 jtag_device_t *device = priv;
1236 if (event == JTAG_TRST_ASSERTED)
1238 buf_set_ones(device->cur_instr, device->ir_length);
1245 void jtag_sleep(u32 us)
1250 /* Try to examine chain layout according to IEEE 1149.1 §12
1252 int jtag_examine_chain()
1254 jtag_device_t *device = jtag_devices;
1256 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1259 int device_count = 0;
1260 u8 zero_check = 0x0;
1261 u8 one_check = 0xff;
1264 field.num_bits = sizeof(idcode_buffer) * 8;
1265 field.out_value = idcode_buffer;
1266 field.out_mask = NULL;
1267 field.in_value = idcode_buffer;
1268 field.in_check_value = NULL;
1269 field.in_check_mask = NULL;
1270 field.in_handler = NULL;
1271 field.in_handler_priv = NULL;
1273 for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1275 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1278 jtag_add_plain_dr_scan(1, &field, TAP_TLR);
1279 jtag_execute_queue();
1281 for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1283 zero_check |= idcode_buffer[i];
1284 one_check &= idcode_buffer[i];
1287 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1288 if ((zero_check == 0x00) || (one_check == 0xff))
1290 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1291 return ERROR_JTAG_INIT_FAILED;
1294 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1296 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1297 if ((idcode & 1) == 0)
1299 /* LSB must not be 0, this indicates a device in bypass */
1310 if (idcode == 0x000000FF)
1312 /* End of chain (invalid manufacturer ID) */
1318 device->idcode = idcode;
1319 device = device->next;
1323 manufacturer = (idcode & 0xffe) >> 1;
1324 part = (idcode & 0xffff000) >> 12;
1325 version = (idcode & 0xf0000000) >> 28;
1327 INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1328 idcode, manufacturer, part, version);
1334 /* see if number of discovered devices matches configuration */
1335 if (device_count != jtag_num_devices)
1337 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1338 device_count, jtag_num_devices);
1339 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1340 return ERROR_JTAG_INIT_FAILED;
1346 int jtag_validate_chain()
1348 jtag_device_t *device = jtag_devices;
1349 int total_ir_length = 0;
1356 total_ir_length += device->ir_length;
1357 device = device->next;
1360 total_ir_length += 2;
1361 ir_test = malloc(CEIL(total_ir_length, 8));
1362 buf_set_ones(ir_test, total_ir_length);
1365 field.num_bits = total_ir_length;
1366 field.out_value = ir_test;
1367 field.out_mask = NULL;
1368 field.in_value = ir_test;
1369 field.in_check_value = NULL;
1370 field.in_check_mask = NULL;
1371 field.in_handler = NULL;
1372 field.in_handler_priv = NULL;
1374 jtag_add_plain_ir_scan(1, &field, TAP_TLR);
1375 jtag_execute_queue();
1377 device = jtag_devices;
1380 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1382 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1383 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1386 return ERROR_JTAG_INIT_FAILED;
1388 chain_pos += device->ir_length;
1389 device = device->next;
1392 if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1394 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1395 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1398 return ERROR_JTAG_INIT_FAILED;
1406 int jtag_register_commands(struct command_context_s *cmd_ctx)
1408 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
1409 COMMAND_CONFIG, NULL);
1410 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
1411 COMMAND_ANY, "set jtag speed (if supported) <reset speed> [<post reset speed, default value is reset speed>]");
1412 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
1413 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1414 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
1415 COMMAND_CONFIG, NULL);
1416 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
1417 COMMAND_CONFIG, NULL);
1418 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
1419 COMMAND_CONFIG, NULL);
1421 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
1422 COMMAND_EXEC, "print current scan chain configuration");
1424 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
1425 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
1426 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
1427 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
1428 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
1429 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
1430 register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
1431 COMMAND_EXEC, "move to current endstate or [tap_state]");
1432 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
1433 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1434 register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
1435 COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
1437 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
1438 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
1442 int jtag_interface_init(struct command_context_s *cmd_ctx)
1444 if (!jtag_interface)
1446 /* nothing was previously specified by "interface" command */
1447 ERROR("JTAG interface has to be specified, see \"interface\" command");
1448 return ERROR_JTAG_INVALID_INTERFACE;
1451 if (jtag_interface->init() != ERROR_OK)
1452 return ERROR_JTAG_INIT_FAILED;
1454 jtag = jtag_interface;
1458 int jtag_init(struct command_context_s *cmd_ctx)
1460 int validate_tries = 0;
1461 jtag_device_t *device;
1465 if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1466 return ERROR_JTAG_INIT_FAILED;
1468 device = jtag_devices;
1469 jtag_ir_scan_size = 0;
1470 jtag_num_devices = 0;
1471 while (device != NULL)
1473 jtag_ir_scan_size += device->ir_length;
1475 device = device->next;
1478 jtag_add_statemove(TAP_TLR);
1479 jtag_execute_queue();
1481 /* examine chain first, as this could discover the real chain layout */
1482 if (jtag_examine_chain() != ERROR_OK)
1484 ERROR("trying to validate configured JTAG chain anyway...");
1487 while (jtag_validate_chain() != ERROR_OK)
1490 if (validate_tries > 5)
1492 ERROR("Could not validate JTAG chain, exit");
1493 return ERROR_JTAG_INVALID_INTERFACE;
1502 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1506 /* check whether the interface is already configured */
1509 WARNING("Interface already configured, ignoring");
1513 /* interface name is a mandatory argument */
1514 if (argc < 1 || args[0][0] == '\0')
1516 return ERROR_COMMAND_SYNTAX_ERROR;
1519 for (i=0; jtag_interfaces[i]; i++)
1521 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
1523 if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
1526 jtag_interface = jtag_interfaces[i];
1531 /* no valid interface was found (i.e. the configuration option,
1532 * didn't match one of the compiled-in interfaces
1534 ERROR("No valid jtag interface found (%s)", args[0]);
1535 ERROR("compiled-in jtag interfaces:");
1536 for (i = 0; jtag_interfaces[i]; i++)
1538 ERROR("%i: %s", i, jtag_interfaces[i]->name);
1541 return ERROR_JTAG_INVALID_INTERFACE;
1544 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1546 jtag_device_t **last_device_p = &jtag_devices;
1550 while ((*last_device_p)->next)
1551 last_device_p = &((*last_device_p)->next);
1552 last_device_p = &((*last_device_p)->next);
1558 *last_device_p = malloc(sizeof(jtag_device_t));
1559 (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
1561 (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
1562 buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
1563 (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
1564 buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
1566 (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
1567 (*last_device_p)->bypass = 1;
1568 buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
1570 (*last_device_p)->next = NULL;
1572 jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
1579 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1581 jtag_device_t *device = jtag_devices;
1582 int device_count = 0;
1586 u32 expected, expected_mask, cur_instr;
1587 expected = buf_get_u32(device->expected, 0, device->ir_length);
1588 expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
1589 cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
1590 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);
1591 device = device->next;
1598 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1602 if (strcmp(args[0], "none") == 0)
1603 jtag_reset_config = RESET_NONE;
1604 else if (strcmp(args[0], "trst_only") == 0)
1605 jtag_reset_config = RESET_HAS_TRST;
1606 else if (strcmp(args[0], "srst_only") == 0)
1607 jtag_reset_config = RESET_HAS_SRST;
1608 else if (strcmp(args[0], "trst_and_srst") == 0)
1609 jtag_reset_config = RESET_TRST_AND_SRST;
1612 ERROR("invalid reset_config argument, defaulting to none");
1613 jtag_reset_config = RESET_NONE;
1614 return ERROR_INVALID_ARGUMENTS;
1620 if (strcmp(args[1], "srst_pulls_trst") == 0)
1621 jtag_reset_config |= RESET_SRST_PULLS_TRST;
1622 else if (strcmp(args[1], "trst_pulls_srst") == 0)
1623 jtag_reset_config |= RESET_TRST_PULLS_SRST;
1624 else if (strcmp(args[1], "combined") == 0)
1625 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
1626 else if (strcmp(args[1], "separate") == 0)
1627 jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
1630 ERROR("invalid reset_config argument, defaulting to none");
1631 jtag_reset_config = RESET_NONE;
1632 return ERROR_INVALID_ARGUMENTS;
1638 if (strcmp(args[2], "trst_open_drain") == 0)
1639 jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
1640 else if (strcmp(args[2], "trst_push_pull") == 0)
1641 jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
1644 ERROR("invalid reset_config argument, defaulting to none");
1645 jtag_reset_config = RESET_NONE;
1646 return ERROR_INVALID_ARGUMENTS;
1652 if (strcmp(args[3], "srst_push_pull") == 0)
1653 jtag_reset_config |= RESET_SRST_PUSH_PULL;
1654 else if (strcmp(args[3], "srst_open_drain") == 0)
1655 jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
1658 ERROR("invalid reset_config argument, defaulting to none");
1659 jtag_reset_config = RESET_NONE;
1660 return ERROR_INVALID_ARGUMENTS;
1667 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1671 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1676 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
1682 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1686 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1691 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
1697 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1700 if ((argc<1) || (argc>2))
1701 return ERROR_COMMAND_SYNTAX_ERROR;
1704 cur_speed = jtag_speed = jtag_speed_post_reset = strtoul(args[0], NULL, 0);
1706 cur_speed = jtag_speed_post_reset = strtoul(args[1], NULL, 0);
1708 /* this command can be called during CONFIG,
1709 * in which case jtag isn't initialized */
1711 jtag->speed(cur_speed);
1716 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1718 enum tap_state state;
1722 return ERROR_COMMAND_SYNTAX_ERROR;
1726 for (state = 0; state < 16; state++)
1728 if (strcmp(args[0], tap_state_strings[state]) == 0)
1730 jtag_add_end_state(state);
1731 jtag_execute_queue();
1735 command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
1740 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1747 return ERROR_COMMAND_SYNTAX_ERROR;
1750 if (args[0][0] == '1')
1752 else if (args[0][0] == '0')
1756 return ERROR_COMMAND_SYNTAX_ERROR;
1759 if (args[1][0] == '1')
1761 else if (args[1][0] == '0')
1765 return ERROR_COMMAND_SYNTAX_ERROR;
1768 if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
1769 return ERROR_JTAG_INIT_FAILED;
1771 jtag_add_reset(trst, srst);
1772 jtag_execute_queue();
1777 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1781 return ERROR_COMMAND_SYNTAX_ERROR;
1784 jtag_add_runtest(strtol(args[0], NULL, 0), -1);
1785 jtag_execute_queue();
1791 int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1793 enum tap_state state;
1798 for (state = 0; state < 16; state++)
1800 if (strcmp(args[0], tap_state_strings[state]) == 0)
1807 jtag_add_statemove(state);
1808 jtag_execute_queue();
1814 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1817 scan_field_t *fields;
1819 if ((argc < 2) || (argc % 2))
1821 return ERROR_COMMAND_SYNTAX_ERROR;
1824 fields = malloc(sizeof(scan_field_t) * argc / 2);
1826 for (i = 0; i < argc / 2; i++)
1828 int device = strtoul(args[i*2], NULL, 0);
1829 int field_size = jtag_get_device(device)->ir_length;
1830 fields[i].device = device;
1831 fields[i].out_value = malloc(CEIL(field_size, 8));
1832 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
1833 fields[i].out_mask = NULL;
1834 fields[i].in_value = NULL;
1835 fields[i].in_check_mask = NULL;
1836 fields[i].in_handler = NULL;
1837 fields[i].in_handler_priv = NULL;
1840 jtag_add_ir_scan(argc / 2, fields, -1);
1841 jtag_execute_queue();
1843 for (i = 0; i < argc / 2; i++)
1844 free(fields[i].out_value);
1851 int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1853 scan_field_t *fields;
1855 int field_count = 0;
1859 if ((argc < 2) || (argc % 2))
1861 return ERROR_COMMAND_SYNTAX_ERROR;
1864 for (i = 0; i < argc; i+=2)
1866 var = get_var_by_namenum(args[i+1]);
1869 num_fields += var->num_fields;
1873 command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
1878 fields = malloc(sizeof(scan_field_t) * num_fields);
1880 for (i = 0; i < argc; i+=2)
1882 var = get_var_by_namenum(args[i+1]);
1884 for (j = 0; j < var->num_fields; j++)
1886 fields[field_count].device = strtol(args[i], NULL, 0);
1887 fields[field_count].num_bits = var->fields[j].num_bits;
1888 fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
1889 buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
1890 fields[field_count].out_mask = NULL;
1891 fields[field_count].in_value = fields[field_count].out_value;
1892 fields[field_count].in_check_mask = NULL;
1893 fields[field_count].in_check_value = NULL;
1894 fields[field_count].in_handler = field_le_to_host;
1895 fields[field_count++].in_handler_priv = &(var->fields[j]);
1899 jtag_add_dr_scan(num_fields, fields, -1);
1900 jtag_execute_queue();
1902 for (i = 0; i < argc / 2; i++)
1903 free(fields[i].out_value);
1910 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1914 if (strcmp(args[0], "enable") == 0)
1916 jtag_verify_capture_ir = 1;
1918 else if (strcmp(args[0], "disable") == 0)
1920 jtag_verify_capture_ir = 0;
1923 return ERROR_COMMAND_SYNTAX_ERROR;
1925 } else if (argc != 0)
1927 return ERROR_COMMAND_SYNTAX_ERROR;
1930 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");