1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * Copyright (C) 2009 SoftPLC Corporation *
12 * Copyright (C) 2009 Zachary T Welch *
13 * zw@superlucidity.net *
15 * This program is free software; you can redistribute it and/or modify *
16 * it under the terms of the GNU General Public License as published by *
17 * the Free Software Foundation; either version 2 of the License, or *
18 * (at your option) any later version. *
20 * This program is distributed in the hope that it will be useful, *
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
23 * GNU General Public License for more details. *
25 * You should have received a copy of the GNU General Public License *
26 * along with this program; if not, write to the *
27 * Free Software Foundation, Inc., *
28 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
29 ***************************************************************************/
35 #include "minidriver.h"
36 #include "interface.h"
37 #include "interfaces.h"
43 static const Jim_Nvp nvp_jtag_tap_event
[] = {
44 { .value
= JTAG_TRST_ASSERTED
, .name
= "post-reset" },
45 { .value
= JTAG_TAP_EVENT_SETUP
, .name
= "setup" },
46 { .value
= JTAG_TAP_EVENT_ENABLE
, .name
= "tap-enable" },
47 { .value
= JTAG_TAP_EVENT_DISABLE
, .name
= "tap-disable" },
49 { .name
= NULL
, .value
= -1 }
52 extern struct jtag_interface
*jtag_interface
;
54 struct jtag_tap
*jtag_tap_by_jim_obj(Jim_Interp
*interp
, Jim_Obj
*o
)
56 const char *cp
= Jim_GetString(o
, NULL
);
57 struct jtag_tap
*t
= cp
? jtag_tap_by_string(cp
) : NULL
;
61 Jim_SetResult_sprintf(interp
, "Tap '%s' could not be found", cp
);
65 static bool scan_is_safe(tap_state_t state
)
79 static int Jim_Command_drscan(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
)
82 struct scan_field
*fields
;
91 * args[3] = hex string
92 * ... repeat num bits and hex string ...
95 * args[N-2] = "-endstate"
96 * args[N-1] = statename
98 if ((argc
< 4) || ((argc
% 2) != 0))
100 Jim_WrongNumArgs(interp
, 1, args
, "wrong arguments");
106 script_debug(interp
, "drscan", argc
, args
);
108 /* validate arguments as numbers */
110 for (i
= 2; i
< argc
; i
+= 2)
115 e
= Jim_GetLong(interp
, args
[i
], &bits
);
116 /* If valid - try next arg */
121 /* Not valid.. are we at the end? */
122 if (((i
+ 2) != argc
)) {
123 /* nope, then error */
127 /* it could be: "-endstate FOO"
128 * e.g. DRPAUSE so we can issue more instructions
129 * before entering RUN/IDLE and executing them.
132 /* get arg as a string. */
133 cp
= Jim_GetString(args
[i
], NULL
);
134 /* is it the magic? */
135 if (0 == strcmp("-endstate", cp
)) {
136 /* is the statename valid? */
137 cp
= Jim_GetString(args
[i
+ 1], NULL
);
139 /* see if it is a valid state name */
140 endstate
= tap_state_by_name(cp
);
142 /* update the error message */
143 Jim_SetResult_sprintf(interp
,"endstate: %s invalid", cp
);
145 if (!scan_is_safe(endstate
))
146 LOG_WARNING("drscan with unsafe "
147 "endstate \"%s\"", cp
);
149 /* valid - so clear the error */
151 /* and remove the last 2 args */
156 /* Still an error? */
158 return e
; /* too bad */
160 } /* validate args */
162 tap
= jtag_tap_by_jim_obj(interp
, args
[1]);
167 num_fields
= (argc
-2)/2;
168 fields
= malloc(sizeof(struct scan_field
) * num_fields
);
169 for (i
= 2; i
< argc
; i
+= 2)
175 Jim_GetLong(interp
, args
[i
], &bits
);
176 str
= Jim_GetString(args
[i
+ 1], &len
);
178 fields
[field_count
].tap
= tap
;
179 fields
[field_count
].num_bits
= bits
;
180 fields
[field_count
].out_value
= malloc(DIV_ROUND_UP(bits
, 8));
181 str_to_buf(str
, len
, fields
[field_count
].out_value
, bits
, 0);
182 fields
[field_count
].in_value
= fields
[field_count
].out_value
;
186 jtag_add_dr_scan(num_fields
, fields
, endstate
);
188 retval
= jtag_execute_queue();
189 if (retval
!= ERROR_OK
)
191 Jim_SetResultString(interp
, "drscan: jtag execute failed",-1);
196 Jim_Obj
*list
= Jim_NewListObj(interp
, NULL
, 0);
197 for (i
= 2; i
< argc
; i
+= 2)
202 Jim_GetLong(interp
, args
[i
], &bits
);
203 str
= buf_to_str(fields
[field_count
].in_value
, bits
, 16);
204 free(fields
[field_count
].out_value
);
206 Jim_ListAppendElement(interp
, list
, Jim_NewStringObj(interp
, str
, strlen(str
)));
211 Jim_SetResult(interp
, list
);
219 static int Jim_Command_pathmove(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
)
221 tap_state_t states
[8];
223 if ((argc
< 2) || ((size_t)argc
> (ARRAY_SIZE(states
) + 1)))
225 Jim_WrongNumArgs(interp
, 1, args
, "wrong arguments");
229 script_debug(interp
, "pathmove", argc
, args
);
232 for (i
= 0; i
< argc
-1; i
++)
235 cp
= Jim_GetString(args
[i
+ 1], NULL
);
236 states
[i
] = tap_state_by_name(cp
);
239 /* update the error message */
240 Jim_SetResult_sprintf(interp
,"endstate: %s invalid", cp
);
245 if ((jtag_add_statemove(states
[0]) != ERROR_OK
) || (jtag_execute_queue()!= ERROR_OK
))
247 Jim_SetResultString(interp
, "pathmove: jtag execute failed",-1);
251 jtag_add_pathmove(argc
-2, states
+ 1);
253 if (jtag_execute_queue()!= ERROR_OK
)
255 Jim_SetResultString(interp
, "pathmove: failed",-1);
263 static int Jim_Command_flush_count(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
)
265 script_debug(interp
, "flush_count", argc
, args
);
267 Jim_SetResult(interp
, Jim_NewIntObj(interp
, jtag_get_flush_queue_count()));
272 /* REVISIT Just what about these should "move" ... ?
273 * These registrations, into the main JTAG table?
275 * There's a minor compatibility issue, these all show up twice;
276 * that's not desirable:
277 * - jtag drscan ... NOT DOCUMENTED!
280 * The "irscan" command (for example) doesn't show twice.
282 static const struct command_registration jtag_command_handlers_to_move
[] = {
285 .mode
= COMMAND_EXEC
,
286 .jim_handler
= Jim_Command_drscan
,
287 .help
= "Execute Data Register (DR) scan for one TAP. "
288 "Other TAPs must be in BYPASS mode.",
289 .usage
= "tap_name [num_bits value]* ['-endstate' state_name]",
292 .name
= "flush_count",
293 .mode
= COMMAND_EXEC
,
294 .jim_handler
= Jim_Command_flush_count
,
295 .help
= "Returns the number of times the JTAG queue "
300 .mode
= COMMAND_EXEC
,
301 .jim_handler
= Jim_Command_pathmove
,
302 .usage
= "start_state state1 [state2 [state3 ...]]",
303 .help
= "Move JTAG state machine from current state "
304 "(start_state) to state1, then state2, state3, etc.",
306 COMMAND_REGISTRATION_DONE
310 enum jtag_tap_cfg_param
{
314 static Jim_Nvp nvp_config_opts
[] = {
315 { .name
= "-event", .value
= JCFG_EVENT
},
317 { .name
= NULL
, .value
= -1 }
320 static int jtag_tap_configure_event(Jim_GetOptInfo
*goi
, struct jtag_tap
* tap
)
324 Jim_WrongNumArgs(goi
->interp
, goi
->argc
, goi
->argv
, "-event <event-name> ...");
329 int e
= Jim_GetOpt_Nvp(goi
, nvp_jtag_tap_event
, &n
);
332 Jim_GetOpt_NvpUnknown(goi
, nvp_jtag_tap_event
, 1);
336 if (goi
->isconfigure
) {
337 if (goi
->argc
!= 1) {
338 Jim_WrongNumArgs(goi
->interp
, goi
->argc
, goi
->argv
, "-event <event-name> <event-body>");
342 if (goi
->argc
!= 0) {
343 Jim_WrongNumArgs(goi
->interp
, goi
->argc
, goi
->argv
, "-event <event-name>");
348 struct jtag_tap_event_action
*jteap
= tap
->event_action
;
349 /* replace existing event body */
353 if (jteap
->event
== (enum jtag_event
)n
->value
)
361 Jim_SetEmptyResult(goi
->interp
);
363 if (goi
->isconfigure
)
366 jteap
= calloc(1, sizeof(*jteap
));
367 else if (NULL
!= jteap
->body
)
368 Jim_DecrRefCount(goi
->interp
, jteap
->body
);
370 jteap
->interp
= goi
->interp
;
371 jteap
->event
= n
->value
;
374 Jim_GetOpt_Obj(goi
, &o
);
375 jteap
->body
= Jim_DuplicateObj(goi
->interp
, o
);
376 Jim_IncrRefCount(jteap
->body
);
380 /* add to head of event list */
381 jteap
->next
= tap
->event_action
;
382 tap
->event_action
= jteap
;
387 jteap
->interp
= goi
->interp
;
388 Jim_SetResult(goi
->interp
,
389 Jim_DuplicateObj(goi
->interp
, jteap
->body
));
394 static int jtag_tap_configure_cmd(Jim_GetOptInfo
*goi
, struct jtag_tap
* tap
)
396 /* parse config or cget options */
397 while (goi
->argc
> 0)
399 Jim_SetEmptyResult (goi
->interp
);
402 int e
= Jim_GetOpt_Nvp(goi
, nvp_config_opts
, &n
);
405 Jim_GetOpt_NvpUnknown(goi
, nvp_config_opts
, 0);
412 e
= jtag_tap_configure_event(goi
, tap
);
417 Jim_SetResult_sprintf(goi
->interp
, "unknown event: %s", n
->name
);
425 static int is_bad_irval(int ir_length
, jim_wide w
)
435 static int jim_newtap_expected_id(Jim_Nvp
*n
, Jim_GetOptInfo
*goi
,
436 struct jtag_tap
*pTap
)
439 int e
= Jim_GetOpt_Wide(goi
, &w
);
441 Jim_SetResult_sprintf(goi
->interp
, "option: %s bad parameter", n
->name
);
445 unsigned expected_len
= sizeof(uint32_t) * pTap
->expected_ids_cnt
;
446 uint32_t *new_expected_ids
= malloc(expected_len
+ sizeof(uint32_t));
447 if (new_expected_ids
== NULL
)
449 Jim_SetResult_sprintf(goi
->interp
, "no memory");
453 memcpy(new_expected_ids
, pTap
->expected_ids
, expected_len
);
455 new_expected_ids
[pTap
->expected_ids_cnt
] = w
;
457 free(pTap
->expected_ids
);
458 pTap
->expected_ids
= new_expected_ids
;
459 pTap
->expected_ids_cnt
++;
464 #define NTAP_OPT_IRLEN 0
465 #define NTAP_OPT_IRMASK 1
466 #define NTAP_OPT_IRCAPTURE 2
467 #define NTAP_OPT_ENABLED 3
468 #define NTAP_OPT_DISABLED 4
469 #define NTAP_OPT_EXPECTED_ID 5
470 #define NTAP_OPT_VERSION 6
472 static int jim_newtap_ir_param(Jim_Nvp
*n
, Jim_GetOptInfo
*goi
,
473 struct jtag_tap
*pTap
)
476 int e
= Jim_GetOpt_Wide(goi
, &w
);
479 Jim_SetResult_sprintf(goi
->interp
,
480 "option: %s bad parameter", n
->name
);
481 free((void *)pTap
->dotted_name
);
486 if (w
> (jim_wide
) (8 * sizeof(pTap
->ir_capture_value
)))
488 LOG_WARNING("%s: huge IR length %d",
489 pTap
->dotted_name
, (int) w
);
493 case NTAP_OPT_IRMASK
:
494 if (is_bad_irval(pTap
->ir_length
, w
))
496 LOG_ERROR("%s: IR mask %x too big",
502 LOG_WARNING("%s: nonstandard IR mask", pTap
->dotted_name
);
503 pTap
->ir_capture_mask
= w
;
505 case NTAP_OPT_IRCAPTURE
:
506 if (is_bad_irval(pTap
->ir_length
, w
))
508 LOG_ERROR("%s: IR capture %x too big",
509 pTap
->dotted_name
, (int) w
);
513 LOG_WARNING("%s: nonstandard IR value",
515 pTap
->ir_capture_value
= w
;
523 static int jim_newtap_cmd(Jim_GetOptInfo
*goi
)
525 struct jtag_tap
*pTap
;
530 const Jim_Nvp opts
[] = {
531 { .name
= "-irlen" , .value
= NTAP_OPT_IRLEN
},
532 { .name
= "-irmask" , .value
= NTAP_OPT_IRMASK
},
533 { .name
= "-ircapture" , .value
= NTAP_OPT_IRCAPTURE
},
534 { .name
= "-enable" , .value
= NTAP_OPT_ENABLED
},
535 { .name
= "-disable" , .value
= NTAP_OPT_DISABLED
},
536 { .name
= "-expected-id" , .value
= NTAP_OPT_EXPECTED_ID
},
537 { .name
= "-ignore-version" , .value
= NTAP_OPT_VERSION
},
538 { .name
= NULL
, .value
= -1 },
541 pTap
= calloc(1, sizeof(struct jtag_tap
));
543 Jim_SetResult_sprintf(goi
->interp
, "no memory");
548 * we expect CHIP + TAP + OPTIONS
551 Jim_SetResult_sprintf(goi
->interp
, "Missing CHIP TAP OPTIONS ....");
555 Jim_GetOpt_String(goi
, &cp
, NULL
);
556 pTap
->chip
= strdup(cp
);
558 Jim_GetOpt_String(goi
, &cp
, NULL
);
559 pTap
->tapname
= strdup(cp
);
561 /* name + dot + name + null */
562 x
= strlen(pTap
->chip
) + 1 + strlen(pTap
->tapname
) + 1;
564 sprintf(cp
, "%s.%s", pTap
->chip
, pTap
->tapname
);
565 pTap
->dotted_name
= cp
;
567 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
568 pTap
->chip
, pTap
->tapname
, pTap
->dotted_name
, goi
->argc
);
570 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
571 * that the default. The "-irlen" and "-irmask" options are only
572 * needed to cope with nonstandard TAPs, or to specify more bits.
574 pTap
->ir_capture_mask
= 0x03;
575 pTap
->ir_capture_value
= 0x01;
578 e
= Jim_GetOpt_Nvp(goi
, opts
, &n
);
580 Jim_GetOpt_NvpUnknown(goi
, opts
, 0);
581 free((void *)pTap
->dotted_name
);
585 LOG_DEBUG("Processing option: %s", n
->name
);
587 case NTAP_OPT_ENABLED
:
588 pTap
->disabled_after_reset
= false;
590 case NTAP_OPT_DISABLED
:
591 pTap
->disabled_after_reset
= true;
593 case NTAP_OPT_EXPECTED_ID
:
594 e
= jim_newtap_expected_id(n
, goi
, pTap
);
597 free((void *)pTap
->dotted_name
);
603 case NTAP_OPT_IRMASK
:
604 case NTAP_OPT_IRCAPTURE
:
605 e
= jim_newtap_ir_param(n
, goi
, pTap
);
608 free((void *)pTap
->dotted_name
);
613 case NTAP_OPT_VERSION
:
614 pTap
->ignore_version
= true;
616 } /* switch (n->value) */
617 } /* while (goi->argc) */
619 /* default is enabled-after-reset */
620 pTap
->enabled
= !pTap
->disabled_after_reset
;
622 /* Did all the required option bits get cleared? */
623 if (pTap
->ir_length
!= 0)
629 Jim_SetResult_sprintf(goi
->interp
,
630 "newtap: %s missing IR length",
636 static void jtag_tap_handle_event(struct jtag_tap
*tap
, enum jtag_event e
)
638 struct jtag_tap_event_action
* jteap
;
640 for (jteap
= tap
->event_action
; jteap
!= NULL
; jteap
= jteap
->next
)
642 if (jteap
->event
!= e
)
645 Jim_Nvp
*nvp
= Jim_Nvp_value2name_simple(nvp_jtag_tap_event
, e
);
646 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
647 tap
->dotted_name
, e
, nvp
->name
,
648 Jim_GetString(jteap
->body
, NULL
));
650 if (Jim_EvalObj(jteap
->interp
, jteap
->body
) != JIM_OK
)
652 Jim_PrintErrorMessage(jteap
->interp
);
658 case JTAG_TAP_EVENT_ENABLE
:
659 case JTAG_TAP_EVENT_DISABLE
:
660 /* NOTE: we currently assume the handlers
661 * can't fail. Right here is where we should
662 * really be verifying the scan chains ...
664 tap
->enabled
= (e
== JTAG_TAP_EVENT_ENABLE
);
665 LOG_INFO("JTAG tap: %s %s", tap
->dotted_name
,
666 tap
->enabled
? "enabled" : "disabled");
675 jim_jtag_interface(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
678 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
680 /* return the name of the interface */
681 /* TCL code might need to know the exact type... */
682 /* FUTURE: we allow this as a means to "set" the interface. */
684 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
-1, "(no params)");
687 const char *name
= jtag_interface
? jtag_interface
->name
: NULL
;
688 Jim_SetResultString(goi
.interp
, name
? : "undefined", -1);
692 static int jim_jtag_arp_init(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
695 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
697 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
-1, "(no params)");
700 struct command_context
*context
= Jim_GetAssocData(interp
, "context");
701 int e
= jtag_init_inner(context
);
703 Jim_SetResult_sprintf(goi
.interp
, "error: %d", e
);
709 static int jim_jtag_arp_init_reset(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
712 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
714 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
-1, "(no params)");
717 struct command_context
*context
= Jim_GetAssocData(interp
, "context");
718 int e
= jtag_init_reset(context
);
720 Jim_SetResult_sprintf(goi
.interp
, "error: %d", e
);
726 static int jim_jtag_newtap(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
729 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
730 return jim_newtap_cmd(&goi
);
733 static bool jtag_tap_enable(struct jtag_tap
*t
)
737 jtag_tap_handle_event(t
, JTAG_TAP_EVENT_ENABLE
);
741 /* FIXME add JTAG sanity checks, w/o TLR
742 * - scan chain length grew by one (this)
743 * - IDs and IR lengths are as expected
745 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE
);
748 static bool jtag_tap_disable(struct jtag_tap
*t
)
752 jtag_tap_handle_event(t
, JTAG_TAP_EVENT_DISABLE
);
756 /* FIXME add JTAG sanity checks, w/o TLR
757 * - scan chain length shrank by one (this)
758 * - IDs and IR lengths are as expected
760 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE
);
764 static int jim_jtag_tap_enabler(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
766 const char *cmd_name
= Jim_GetString(argv
[0], NULL
);
768 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
770 Jim_SetResult_sprintf(goi
.interp
, "usage: %s <name>", cmd_name
);
776 t
= jtag_tap_by_jim_obj(goi
.interp
, goi
.argv
[0]);
780 if (strcasecmp(cmd_name
, "tapisenabled") == 0) {
781 // do nothing, just return the value
782 } else if (strcasecmp(cmd_name
, "tapenable") == 0) {
783 if (!jtag_tap_enable(t
))
784 LOG_WARNING("failed to disable tap");
785 } else if (strcasecmp(cmd_name
, "tapdisable") == 0) {
786 if (!jtag_tap_disable(t
))
787 LOG_WARNING("failed to disable tap");
789 LOG_ERROR("command '%s' unknown", cmd_name
);
793 Jim_SetResult(goi
.interp
, Jim_NewIntObj(goi
.interp
, e
));
797 static int jim_jtag_configure(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
799 const char *cmd_name
= Jim_GetString(argv
[0], NULL
);
801 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
802 goi
.isconfigure
= !strcmp(cmd_name
, "configure");
803 if (goi
.argc
< 2 + goi
.isconfigure
) {
804 Jim_WrongNumArgs(goi
.interp
, 0, NULL
,
805 "<tap_name> <attribute> ...");
812 Jim_GetOpt_Obj(&goi
, &o
);
813 t
= jtag_tap_by_jim_obj(goi
.interp
, o
);
818 return jtag_tap_configure_cmd(&goi
, t
);
821 static int jim_jtag_names(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
824 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
826 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
, "Too many parameters");
829 Jim_SetResult(goi
.interp
, Jim_NewListObj(goi
.interp
, NULL
, 0));
830 struct jtag_tap
*tap
;
832 for (tap
= jtag_all_taps(); tap
; tap
= tap
->next_tap
) {
833 Jim_ListAppendElement(goi
.interp
,
834 Jim_GetResult(goi
.interp
),
835 Jim_NewStringObj(goi
.interp
,
836 tap
->dotted_name
, -1));
841 COMMAND_HANDLER(handle_jtag_init_command
)
844 return ERROR_COMMAND_SYNTAX_ERROR
;
846 static bool jtag_initialized
= false;
847 if (jtag_initialized
)
849 LOG_INFO("'jtag init' has already been called");
852 jtag_initialized
= true;
854 LOG_DEBUG("Initializing jtag devices...");
855 return jtag_init(CMD_CTX
);
858 static const struct command_registration jtag_subcommand_handlers
[] = {
862 .handler
= handle_jtag_init_command
,
863 .help
= "initialize jtag scan chain",
868 .jim_handler
= jim_jtag_interface
,
869 .help
= "Returns the name of the currently selected interface.",
874 .jim_handler
= jim_jtag_arp_init
,
875 .help
= "Validates JTAG scan chain against the list of "
876 "declared TAPs using just the four standard JTAG "
880 .name
= "arp_init-reset",
882 .jim_handler
= jim_jtag_arp_init_reset
,
883 .help
= "Uses TRST and SRST to try resetting everything on "
884 "the JTAG scan chain, then performs 'jtag arp_init'."
888 .mode
= COMMAND_CONFIG
,
889 .jim_handler
= jim_jtag_newtap
,
890 .help
= "Create a new TAP instance named basename.tap_type, "
891 "and appends it to the scan chain.",
892 .usage
= "basename tap_type '-irlen' count "
893 "['-enable'|'-disable'] "
894 "['-expected_id' number] "
895 "['-ignore-version'] "
896 "['-ircapture' number] "
900 .name
= "tapisenabled",
901 .mode
= COMMAND_EXEC
,
902 .jim_handler
= jim_jtag_tap_enabler
,
903 .help
= "Returns a Tcl boolean (0/1) indicating whether "
904 "the TAP is enabled (1) or not (0).",
909 .mode
= COMMAND_EXEC
,
910 .jim_handler
= jim_jtag_tap_enabler
,
911 .help
= "Try to enable the specified TAP using the "
912 "'tap-enable' TAP event.",
916 .name
= "tapdisable",
917 .mode
= COMMAND_EXEC
,
918 .jim_handler
= jim_jtag_tap_enabler
,
919 .help
= "Try to disable the specified TAP using the "
920 "'tap-disable' TAP event.",
925 .mode
= COMMAND_EXEC
,
926 .jim_handler
= jim_jtag_configure
,
927 .help
= "Provide a Tcl handler for the specified "
929 .usage
= "tap_name '-event' event_name handler",
933 .mode
= COMMAND_EXEC
,
934 .jim_handler
= jim_jtag_configure
,
935 .help
= "Return any Tcl handler for the specified "
937 .usage
= "tap_name '-event' event_name",
942 .jim_handler
= jim_jtag_names
,
943 .help
= "Returns list of all JTAG tap names.",
946 .chain
= jtag_command_handlers_to_move
,
948 COMMAND_REGISTRATION_DONE
951 void jtag_notify_event(enum jtag_event event
)
953 struct jtag_tap
*tap
;
955 for (tap
= jtag_all_taps(); tap
; tap
= tap
->next_tap
)
956 jtag_tap_handle_event(tap
, event
);
960 static int default_khz(int khz
, int *jtag_speed
)
962 LOG_ERROR("Translation from khz to jtag_speed not implemented");
966 static int default_speed_div(int speed
, int *khz
)
968 LOG_ERROR("Translation from jtag_speed to khz not implemented");
972 static int default_power_dropout(int *dropout
)
974 *dropout
= 0; /* by default we can't detect power dropout */
978 static int default_srst_asserted(int *srst_asserted
)
980 *srst_asserted
= 0; /* by default we can't detect srst asserted */
984 COMMAND_HANDLER(handle_interface_list_command
)
986 if (strcmp(CMD_NAME
, "interface_list") == 0 && CMD_ARGC
> 0)
987 return ERROR_COMMAND_SYNTAX_ERROR
;
989 command_print(CMD_CTX
, "The following JTAG interfaces are available:");
990 for (unsigned i
= 0; NULL
!= jtag_interfaces
[i
]; i
++)
992 const char *name
= jtag_interfaces
[i
]->name
;
993 command_print(CMD_CTX
, "%u: %s", i
+ 1, name
);
999 COMMAND_HANDLER(handle_interface_command
)
1001 /* check whether the interface is already configured */
1004 LOG_WARNING("Interface already configured, ignoring");
1008 /* interface name is a mandatory argument */
1009 if (CMD_ARGC
!= 1 || CMD_ARGV
[0][0] == '\0')
1010 return ERROR_COMMAND_SYNTAX_ERROR
;
1012 for (unsigned i
= 0; NULL
!= jtag_interfaces
[i
]; i
++)
1014 if (strcmp(CMD_ARGV
[0], jtag_interfaces
[i
]->name
) != 0)
1017 if (NULL
!= jtag_interfaces
[i
]->commands
)
1019 int retval
= register_commands(CMD_CTX
, NULL
,
1020 jtag_interfaces
[i
]->commands
);
1021 if (ERROR_OK
!= retval
)
1025 jtag_interface
= jtag_interfaces
[i
];
1027 if (jtag_interface
->khz
== NULL
)
1028 jtag_interface
->khz
= default_khz
;
1029 if (jtag_interface
->speed_div
== NULL
)
1030 jtag_interface
->speed_div
= default_speed_div
;
1031 if (jtag_interface
->power_dropout
== NULL
)
1032 jtag_interface
->power_dropout
= default_power_dropout
;
1033 if (jtag_interface
->srst_asserted
== NULL
)
1034 jtag_interface
->srst_asserted
= default_srst_asserted
;
1039 /* no valid interface was found (i.e. the configuration option,
1040 * didn't match one of the compiled-in interfaces
1042 LOG_ERROR("The specified JTAG interface was not found (%s)", CMD_ARGV
[0]);
1043 CALL_COMMAND_HANDLER(handle_interface_list_command
);
1044 return ERROR_JTAG_INVALID_INTERFACE
;
1047 COMMAND_HANDLER(handle_scan_chain_command
)
1049 struct jtag_tap
*tap
;
1050 char expected_id
[12];
1052 tap
= jtag_all_taps();
1053 command_print(CMD_CTX
,
1054 " TapName Enabled IdCode Expected IrLen IrCap IrMask");
1055 command_print(CMD_CTX
,
1056 "-- ------------------- -------- ---------- ---------- ----- ----- ------");
1059 uint32_t expected
, expected_mask
, ii
;
1061 snprintf(expected_id
, sizeof expected_id
, "0x%08x",
1062 (unsigned)((tap
->expected_ids_cnt
> 0)
1063 ? tap
->expected_ids
[0]
1065 if (tap
->ignore_version
)
1066 expected_id
[2] = '*';
1068 expected
= buf_get_u32(tap
->expected
, 0, tap
->ir_length
);
1069 expected_mask
= buf_get_u32(tap
->expected_mask
, 0, tap
->ir_length
);
1071 command_print(CMD_CTX
,
1072 "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
1073 tap
->abs_chain_position
,
1075 tap
->enabled
? 'Y' : 'n',
1076 (unsigned int)(tap
->idcode
),
1078 (unsigned int)(tap
->ir_length
),
1079 (unsigned int)(expected
),
1080 (unsigned int)(expected_mask
));
1082 for (ii
= 1; ii
< tap
->expected_ids_cnt
; ii
++) {
1083 snprintf(expected_id
, sizeof expected_id
, "0x%08x",
1084 (unsigned) tap
->expected_ids
[1]);
1085 if (tap
->ignore_version
)
1086 expected_id
[2] = '*';
1088 command_print(CMD_CTX
,
1093 tap
= tap
->next_tap
;
1099 COMMAND_HANDLER(handle_reset_config_command
)
1104 /* Original versions cared about the order of these tokens:
1105 * reset_config signals [combination [trst_type [srst_type]]]
1106 * They also clobbered the previous configuration even on error.
1108 * Here we don't care about the order, and only change values
1109 * which have been explicitly specified.
1111 for (; CMD_ARGC
; CMD_ARGC
--, CMD_ARGV
++) {
1116 m
= RESET_SRST_NO_GATING
;
1117 if (strcmp(*CMD_ARGV
, "srst_gates_jtag") == 0)
1118 /* default: don't use JTAG while SRST asserted */;
1119 else if (strcmp(*CMD_ARGV
, "srst_nogate") == 0)
1120 tmp
= RESET_SRST_NO_GATING
;
1124 LOG_ERROR("extra reset_config %s spec (%s)",
1125 "gating", *CMD_ARGV
);
1126 return ERROR_INVALID_ARGUMENTS
;
1132 m
= RESET_HAS_TRST
| RESET_HAS_SRST
;
1133 if (strcmp(*CMD_ARGV
, "none") == 0)
1135 else if (strcmp(*CMD_ARGV
, "trst_only") == 0)
1136 tmp
= RESET_HAS_TRST
;
1137 else if (strcmp(*CMD_ARGV
, "srst_only") == 0)
1138 tmp
= RESET_HAS_SRST
;
1139 else if (strcmp(*CMD_ARGV
, "trst_and_srst") == 0)
1140 tmp
= RESET_HAS_TRST
| RESET_HAS_SRST
;
1144 LOG_ERROR("extra reset_config %s spec (%s)",
1145 "signal", *CMD_ARGV
);
1146 return ERROR_INVALID_ARGUMENTS
;
1151 /* combination (options for broken wiring) */
1152 m
= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
1153 if (strcmp(*CMD_ARGV
, "separate") == 0)
1154 /* separate reset lines - default */;
1155 else if (strcmp(*CMD_ARGV
, "srst_pulls_trst") == 0)
1156 tmp
|= RESET_SRST_PULLS_TRST
;
1157 else if (strcmp(*CMD_ARGV
, "trst_pulls_srst") == 0)
1158 tmp
|= RESET_TRST_PULLS_SRST
;
1159 else if (strcmp(*CMD_ARGV
, "combined") == 0)
1160 tmp
|= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
1164 LOG_ERROR("extra reset_config %s spec (%s)",
1165 "combination", *CMD_ARGV
);
1166 return ERROR_INVALID_ARGUMENTS
;
1171 /* trst_type (NOP without HAS_TRST) */
1172 m
= RESET_TRST_OPEN_DRAIN
;
1173 if (strcmp(*CMD_ARGV
, "trst_open_drain") == 0)
1174 tmp
|= RESET_TRST_OPEN_DRAIN
;
1175 else if (strcmp(*CMD_ARGV
, "trst_push_pull") == 0)
1176 /* push/pull from adapter - default */;
1180 LOG_ERROR("extra reset_config %s spec (%s)",
1181 "trst_type", *CMD_ARGV
);
1182 return ERROR_INVALID_ARGUMENTS
;
1187 /* srst_type (NOP without HAS_SRST) */
1188 m
|= RESET_SRST_PUSH_PULL
;
1189 if (strcmp(*CMD_ARGV
, "srst_push_pull") == 0)
1190 tmp
|= RESET_SRST_PUSH_PULL
;
1191 else if (strcmp(*CMD_ARGV
, "srst_open_drain") == 0)
1192 /* open drain from adapter - default */;
1196 LOG_ERROR("extra reset_config %s spec (%s)",
1197 "srst_type", *CMD_ARGV
);
1198 return ERROR_INVALID_ARGUMENTS
;
1203 /* caller provided nonsense; fail */
1204 LOG_ERROR("unknown reset_config flag (%s)", *CMD_ARGV
);
1205 return ERROR_INVALID_ARGUMENTS
;
1208 /* Remember the bits which were specified (mask)
1209 * and their new values (new_cfg).
1215 /* clear previous values of those bits, save new values */
1217 int old_cfg
= jtag_get_reset_config();
1221 jtag_set_reset_config(new_cfg
);
1223 new_cfg
= jtag_get_reset_config();
1227 * Display the (now-)current reset mode
1231 /* minimal JTAG has neither SRST nor TRST (so that's the default) */
1232 switch (new_cfg
& (RESET_HAS_TRST
| RESET_HAS_SRST
)) {
1233 case RESET_HAS_SRST
:
1234 modes
[0] = "srst_only";
1236 case RESET_HAS_TRST
:
1237 modes
[0] = "trst_only";
1239 case RESET_TRST_AND_SRST
:
1240 modes
[0] = "trst_and_srst";
1247 /* normally SRST and TRST are decoupled; but bugs happen ... */
1248 switch (new_cfg
& (RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
)) {
1249 case RESET_SRST_PULLS_TRST
:
1250 modes
[1] = "srst_pulls_trst";
1252 case RESET_TRST_PULLS_SRST
:
1253 modes
[1] = "trst_pulls_srst";
1255 case RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
:
1256 modes
[1] = "combined";
1259 modes
[1] = "separate";
1263 /* TRST-less connectors include Altera, Xilinx, and minimal JTAG */
1264 if (new_cfg
& RESET_HAS_TRST
) {
1265 if (new_cfg
& RESET_TRST_OPEN_DRAIN
)
1266 modes
[3] = " trst_open_drain";
1268 modes
[3] = " trst_push_pull";
1272 /* SRST-less connectors include TI-14, Xilinx, and minimal JTAG */
1273 if (new_cfg
& RESET_HAS_SRST
) {
1274 if (new_cfg
& RESET_SRST_NO_GATING
)
1275 modes
[2] = " srst_nogate";
1277 modes
[2] = " srst_gates_jtag";
1279 if (new_cfg
& RESET_SRST_PUSH_PULL
)
1280 modes
[4] = " srst_push_pull";
1282 modes
[4] = " srst_open_drain";
1288 command_print(CMD_CTX
, "%s %s%s%s%s",
1290 modes
[2], modes
[3], modes
[4]);
1295 COMMAND_HANDLER(handle_jtag_nsrst_delay_command
)
1298 return ERROR_COMMAND_SYNTAX_ERROR
;
1302 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], delay
);
1304 jtag_set_nsrst_delay(delay
);
1306 command_print(CMD_CTX
, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
1310 COMMAND_HANDLER(handle_jtag_ntrst_delay_command
)
1313 return ERROR_COMMAND_SYNTAX_ERROR
;
1317 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], delay
);
1319 jtag_set_ntrst_delay(delay
);
1321 command_print(CMD_CTX
, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
1325 COMMAND_HANDLER(handle_jtag_nsrst_assert_width_command
)
1328 return ERROR_COMMAND_SYNTAX_ERROR
;
1332 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], delay
);
1334 jtag_set_nsrst_assert_width(delay
);
1336 command_print(CMD_CTX
, "jtag_nsrst_assert_width: %u", jtag_get_nsrst_assert_width());
1340 COMMAND_HANDLER(handle_jtag_ntrst_assert_width_command
)
1343 return ERROR_COMMAND_SYNTAX_ERROR
;
1347 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], delay
);
1349 jtag_set_ntrst_assert_width(delay
);
1351 command_print(CMD_CTX
, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1355 COMMAND_HANDLER(handle_jtag_khz_command
)
1358 return ERROR_COMMAND_SYNTAX_ERROR
;
1360 int retval
= ERROR_OK
;
1364 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], khz
);
1366 retval
= jtag_config_khz(khz
);
1367 if (ERROR_OK
!= retval
)
1371 int cur_speed
= jtag_get_speed_khz();
1372 retval
= jtag_get_speed_readable(&cur_speed
);
1373 if (ERROR_OK
!= retval
)
1377 command_print(CMD_CTX
, "%d kHz", cur_speed
);
1379 command_print(CMD_CTX
, "RCLK - adaptive");
1384 COMMAND_HANDLER(handle_jtag_rclk_command
)
1387 return ERROR_COMMAND_SYNTAX_ERROR
;
1389 int retval
= ERROR_OK
;
1393 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], khz
);
1395 retval
= jtag_config_rclk(khz
);
1396 if (ERROR_OK
!= retval
)
1400 int cur_khz
= jtag_get_speed_khz();
1401 retval
= jtag_get_speed_readable(&cur_khz
);
1402 if (ERROR_OK
!= retval
)
1406 command_print(CMD_CTX
, "RCLK not supported - fallback to %d kHz", cur_khz
);
1408 command_print(CMD_CTX
, "RCLK - adaptive");
1413 COMMAND_HANDLER(handle_jtag_reset_command
)
1416 return ERROR_COMMAND_SYNTAX_ERROR
;
1419 if (CMD_ARGV
[0][0] == '1')
1421 else if (CMD_ARGV
[0][0] == '0')
1424 return ERROR_COMMAND_SYNTAX_ERROR
;
1427 if (CMD_ARGV
[1][0] == '1')
1429 else if (CMD_ARGV
[1][0] == '0')
1432 return ERROR_COMMAND_SYNTAX_ERROR
;
1434 if (jtag_interface_init(CMD_CTX
) != ERROR_OK
)
1435 return ERROR_JTAG_INIT_FAILED
;
1437 jtag_add_reset(trst
, srst
);
1438 return jtag_execute_queue();
1441 COMMAND_HANDLER(handle_runtest_command
)
1444 return ERROR_COMMAND_SYNTAX_ERROR
;
1446 unsigned num_clocks
;
1447 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], num_clocks
);
1449 jtag_add_runtest(num_clocks
, TAP_IDLE
);
1450 return jtag_execute_queue();
1454 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1455 * should be stable ... and *NOT* a shift state, otherwise free-running
1456 * jtag clocks could change the values latched by the update state.
1457 * Not surprisingly, this is the same constraint as SVF; the "irscan"
1458 * and "drscan" commands are a write-only subset of what SVF provides.
1461 COMMAND_HANDLER(handle_irscan_command
)
1464 struct scan_field
*fields
;
1465 struct jtag_tap
*tap
;
1466 tap_state_t endstate
;
1468 if ((CMD_ARGC
< 2) || (CMD_ARGC
% 2))
1470 return ERROR_COMMAND_SYNTAX_ERROR
;
1473 /* optional "-endstate" "statename" at the end of the arguments,
1474 * so that e.g. IRPAUSE can let us load the data register before
1475 * entering RUN/IDLE to execute the instruction we load here.
1477 endstate
= TAP_IDLE
;
1479 if (CMD_ARGC
>= 4) {
1480 /* have at least one pair of numbers. */
1481 /* is last pair the magic text? */
1482 if (strcmp("-endstate", CMD_ARGV
[CMD_ARGC
- 2]) == 0) {
1483 endstate
= tap_state_by_name(CMD_ARGV
[CMD_ARGC
- 1]);
1484 if (endstate
== TAP_INVALID
)
1485 return ERROR_COMMAND_SYNTAX_ERROR
;
1486 if (!scan_is_safe(endstate
))
1487 LOG_WARNING("unstable irscan endstate \"%s\"",
1488 CMD_ARGV
[CMD_ARGC
- 1]);
1493 int num_fields
= CMD_ARGC
/ 2;
1494 size_t fields_len
= sizeof(struct scan_field
) * num_fields
;
1495 fields
= malloc(fields_len
);
1496 memset(fields
, 0, fields_len
);
1499 for (i
= 0; i
< num_fields
; i
++)
1501 tap
= jtag_tap_by_string(CMD_ARGV
[i
*2]);
1505 for (j
= 0; j
< i
; j
++)
1506 free(fields
[j
].out_value
);
1508 command_print(CMD_CTX
, "Tap: %s unknown", CMD_ARGV
[i
*2]);
1512 int field_size
= tap
->ir_length
;
1513 fields
[i
].tap
= tap
;
1514 fields
[i
].num_bits
= field_size
;
1515 fields
[i
].out_value
= malloc(DIV_ROUND_UP(field_size
, 8));
1518 retval
= parse_u32(CMD_ARGV
[i
* 2 + 1], &value
);
1519 if (ERROR_OK
!= retval
)
1521 buf_set_u32(fields
[i
].out_value
, 0, field_size
, value
);
1522 fields
[i
].in_value
= NULL
;
1525 /* did we have an endstate? */
1526 jtag_add_ir_scan(num_fields
, fields
, endstate
);
1528 retval
= jtag_execute_queue();
1531 for (i
= 0; i
< num_fields
; i
++)
1533 if (NULL
!= fields
[i
].out_value
)
1534 free(fields
[i
].out_value
);
1543 COMMAND_HANDLER(handle_verify_ircapture_command
)
1546 return ERROR_COMMAND_SYNTAX_ERROR
;
1551 COMMAND_PARSE_ENABLE(CMD_ARGV
[0], enable
);
1552 jtag_set_verify_capture_ir(enable
);
1555 const char *status
= jtag_will_verify_capture_ir() ? "enabled": "disabled";
1556 command_print(CMD_CTX
, "verify Capture-IR is %s", status
);
1561 COMMAND_HANDLER(handle_verify_jtag_command
)
1564 return ERROR_COMMAND_SYNTAX_ERROR
;
1569 COMMAND_PARSE_ENABLE(CMD_ARGV
[0], enable
);
1570 jtag_set_verify(enable
);
1573 const char *status
= jtag_will_verify() ? "enabled": "disabled";
1574 command_print(CMD_CTX
, "verify jtag capture is %s", status
);
1579 COMMAND_HANDLER(handle_tms_sequence_command
)
1582 return ERROR_COMMAND_SYNTAX_ERROR
;
1587 if (strcmp(CMD_ARGV
[0], "short") == 0)
1588 use_new_table
= true;
1589 else if (strcmp(CMD_ARGV
[0], "long") == 0)
1590 use_new_table
= false;
1592 return ERROR_COMMAND_SYNTAX_ERROR
;
1594 tap_use_new_tms_table(use_new_table
);
1597 command_print(CMD_CTX
, "tms sequence is %s",
1598 tap_uses_new_tms_table() ? "short": "long");
1603 static const struct command_registration jtag_command_handlers
[] = {
1605 .name
= "interface",
1606 .handler
= handle_interface_command
,
1607 .mode
= COMMAND_CONFIG
,
1608 .help
= "Select a JTAG interface",
1609 .usage
= "driver_name",
1612 .name
= "interface_list",
1613 .handler
= handle_interface_list_command
,
1614 .mode
= COMMAND_ANY
,
1615 .help
= "List all built-in interfaces",
1619 .handler
= handle_jtag_khz_command
,
1620 .mode
= COMMAND_ANY
,
1621 .help
= "With an argument, change to the specified maximum "
1622 "jtag speed. Pass 0 to require adaptive clocking. "
1623 "With or without argument, display current setting.",
1627 .name
= "jtag_rclk",
1628 .handler
= handle_jtag_rclk_command
,
1629 .mode
= COMMAND_ANY
,
1630 .help
= "With an argument, change to to use adaptive clocking "
1631 "if possible; else to use the fallback speed. "
1632 "With or without argument, display current setting.",
1633 .usage
= "[fallback_speed_khz]",
1636 .name
= "reset_config",
1637 .handler
= handle_reset_config_command
,
1638 .mode
= COMMAND_ANY
,
1639 .help
= "configure JTAG reset behavior",
1640 .usage
= "[none|trst_only|srst_only|trst_and_srst] "
1641 "[srst_pulls_trst|trst_pulls_srst|combined|separate] "
1642 "[srst_gates_jtag|srst_nogate] "
1643 "[trst_push_pull|trst_open_drain] "
1644 "[srst_push_pull|srst_open_drain]",
1647 .name
= "jtag_nsrst_delay",
1648 .handler
= handle_jtag_nsrst_delay_command
,
1649 .mode
= COMMAND_ANY
,
1650 .help
= "delay after deasserting srst in ms",
1651 .usage
= "[milliseconds]",
1654 .name
= "jtag_ntrst_delay",
1655 .handler
= handle_jtag_ntrst_delay_command
,
1656 .mode
= COMMAND_ANY
,
1657 .help
= "delay after deasserting trst in ms",
1658 .usage
= "[milliseconds]",
1661 .name
= "jtag_nsrst_assert_width",
1662 .handler
= handle_jtag_nsrst_assert_width_command
,
1663 .mode
= COMMAND_ANY
,
1664 .help
= "delay after asserting srst in ms",
1665 .usage
= "[milliseconds]",
1668 .name
= "jtag_ntrst_assert_width",
1669 .handler
= handle_jtag_ntrst_assert_width_command
,
1670 .mode
= COMMAND_ANY
,
1671 .help
= "delay after asserting trst in ms",
1672 .usage
= "[milliseconds]",
1675 .name
= "scan_chain",
1676 .handler
= handle_scan_chain_command
,
1677 .mode
= COMMAND_ANY
,
1678 .help
= "print current scan chain configuration",
1681 .name
= "jtag_reset",
1682 .handler
= handle_jtag_reset_command
,
1683 .mode
= COMMAND_EXEC
,
1684 .help
= "Set reset line values. Value '1' is active, "
1685 "value '0' is inactive.",
1686 .usage
= "trst_active srst_active",
1690 .handler
= handle_runtest_command
,
1691 .mode
= COMMAND_EXEC
,
1692 .help
= "Move to Run-Test/Idle, and issue TCK for num_cycles.",
1693 .usage
= "num_cycles"
1697 .handler
= handle_irscan_command
,
1698 .mode
= COMMAND_EXEC
,
1699 .help
= "Execute Instruction Register (DR) scan. The "
1700 "specified opcodes are put into each TAP's IR, "
1701 "and other TAPs are put in BYPASS.",
1702 .usage
= "[tap_name instruction]* ['-endstate' state_name]",
1705 .name
= "verify_ircapture",
1706 .handler
= handle_verify_ircapture_command
,
1707 .mode
= COMMAND_ANY
,
1708 .help
= "Display or assign flag controlling whether to "
1709 "verify values captured during Capture-IR.",
1710 .usage
= "['enable'|'disable']",
1713 .name
= "verify_jtag",
1714 .handler
= handle_verify_jtag_command
,
1715 .mode
= COMMAND_ANY
,
1716 .help
= "Display or assign flag controlling whether to "
1717 "verify values captured during IR and DR scans.",
1718 .usage
= "['enable'|'disable']",
1721 .name
= "tms_sequence",
1722 .handler
= handle_tms_sequence_command
,
1723 .mode
= COMMAND_ANY
,
1724 .help
= "Display or change what style TMS sequences to use "
1725 "for JTAG state transitions: short (default) or "
1726 "long. Only for working around JTAG bugs.",
1727 /* Specifically for working around DRIVER bugs... */
1728 .usage
= "['short'|'long']",
1732 .mode
= COMMAND_ANY
,
1733 .help
= "perform jtag tap actions",
1735 .chain
= jtag_subcommand_handlers
,
1738 .chain
= jtag_command_handlers_to_move
,
1740 COMMAND_REGISTRATION_DONE
1742 int jtag_register_commands(struct command_context
*cmd_ctx
)
1744 return register_commands(cmd_ctx
, NULL
, jtag_command_handlers
);