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 jtag_interface_t
*jtag_interface
;
55 static int handle_interface_list_command(struct command_context_s
*cmd_ctx
,
56 char *cmd
, char **args
, int argc
);
57 static int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
58 static int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
59 static int handle_jtag_khz_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
60 static int handle_jtag_rclk_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
61 static int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
62 static int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
63 static int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
64 static int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
65 static int handle_jtag_nsrst_assert_width_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
66 static int handle_jtag_ntrst_assert_width_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
68 static int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
70 static int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
71 static int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
72 static int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
73 static int Jim_Command_drscan(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
);
74 static int Jim_Command_pathmove(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
);
75 static int Jim_Command_flush_count(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
);
77 static int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
78 static int handle_verify_jtag_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
79 static int handle_tms_sequence_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
82 enum jtag_tap_cfg_param
{
86 static Jim_Nvp nvp_config_opts
[] = {
87 { .name
= "-event", .value
= JCFG_EVENT
},
89 { .name
= NULL
, .value
= -1 }
92 static int jtag_tap_configure_cmd(Jim_GetOptInfo
*goi
, jtag_tap_t
* tap
)
98 /* parse config or cget options */
99 while (goi
->argc
> 0) {
100 Jim_SetEmptyResult (goi
->interp
);
102 e
= Jim_GetOpt_Nvp(goi
, nvp_config_opts
, &n
);
104 Jim_GetOpt_NvpUnknown(goi
, nvp_config_opts
, 0);
110 if (goi
->argc
== 0) {
111 Jim_WrongNumArgs(goi
->interp
, goi
->argc
, goi
->argv
, "-event ?event-name? ...");
115 e
= Jim_GetOpt_Nvp(goi
, nvp_jtag_tap_event
, &n
);
117 Jim_GetOpt_NvpUnknown(goi
, nvp_jtag_tap_event
, 1);
121 if (goi
->isconfigure
) {
122 if (goi
->argc
!= 1) {
123 Jim_WrongNumArgs(goi
->interp
, goi
->argc
, goi
->argv
, "-event ?event-name? ?EVENT-BODY?");
127 if (goi
->argc
!= 0) {
128 Jim_WrongNumArgs(goi
->interp
, goi
->argc
, goi
->argv
, "-event ?event-name?");
134 jtag_tap_event_action_t
*jteap
;
136 jteap
= tap
->event_action
;
137 /* replace existing? */
139 if (jteap
->event
== (enum jtag_event
)n
->value
) {
145 if (goi
->isconfigure
) {
149 jteap
= calloc(1, sizeof (*jteap
));
152 jteap
->event
= n
->value
;
153 Jim_GetOpt_Obj(goi
, &o
);
155 Jim_DecrRefCount(interp
, jteap
->body
);
157 jteap
->body
= Jim_DuplicateObj(goi
->interp
, o
);
158 Jim_IncrRefCount(jteap
->body
);
162 /* add to head of event list */
163 jteap
->next
= tap
->event_action
;
164 tap
->event_action
= jteap
;
166 Jim_SetEmptyResult(goi
->interp
);
170 Jim_SetEmptyResult(goi
->interp
);
172 Jim_SetResult(goi
->interp
, Jim_DuplicateObj(goi
->interp
, jteap
->body
));
179 } /* while (goi->argc) */
184 static int is_bad_irval(int ir_length
, jim_wide w
)
194 static int jim_newtap_cmd(Jim_GetOptInfo
*goi
)
203 const Jim_Nvp opts
[] = {
204 #define NTAP_OPT_IRLEN 0
205 { .name
= "-irlen" , .value
= NTAP_OPT_IRLEN
},
206 #define NTAP_OPT_IRMASK 1
207 { .name
= "-irmask" , .value
= NTAP_OPT_IRMASK
},
208 #define NTAP_OPT_IRCAPTURE 2
209 { .name
= "-ircapture" , .value
= NTAP_OPT_IRCAPTURE
},
210 #define NTAP_OPT_ENABLED 3
211 { .name
= "-enable" , .value
= NTAP_OPT_ENABLED
},
212 #define NTAP_OPT_DISABLED 4
213 { .name
= "-disable" , .value
= NTAP_OPT_DISABLED
},
214 #define NTAP_OPT_EXPECTED_ID 5
215 { .name
= "-expected-id" , .value
= NTAP_OPT_EXPECTED_ID
},
216 { .name
= NULL
, .value
= -1 },
219 pTap
= calloc(1, sizeof(jtag_tap_t
));
221 Jim_SetResult_sprintf(goi
->interp
, "no memory");
226 * we expect CHIP + TAP + OPTIONS
229 Jim_SetResult_sprintf(goi
->interp
, "Missing CHIP TAP OPTIONS ....");
233 Jim_GetOpt_String(goi
, &cp
, NULL
);
234 pTap
->chip
= strdup(cp
);
236 Jim_GetOpt_String(goi
, &cp
, NULL
);
237 pTap
->tapname
= strdup(cp
);
239 /* name + dot + name + null */
240 x
= strlen(pTap
->chip
) + 1 + strlen(pTap
->tapname
) + 1;
242 sprintf(cp
, "%s.%s", pTap
->chip
, pTap
->tapname
);
243 pTap
->dotted_name
= cp
;
245 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
246 pTap
->chip
, pTap
->tapname
, pTap
->dotted_name
, goi
->argc
);
248 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
249 * that the default. The "-irlen" and "-irmask" options are only
250 * needed to cope with nonstandard TAPs, or to specify more bits.
252 pTap
->ir_capture_mask
= 0x03;
253 pTap
->ir_capture_value
= 0x01;
255 /* clear flags for "required options" them as we find them */
259 e
= Jim_GetOpt_Nvp(goi
, opts
, &n
);
261 Jim_GetOpt_NvpUnknown(goi
, opts
, 0);
262 free((void *)pTap
->dotted_name
);
266 LOG_DEBUG("Processing option: %s", n
->name
);
268 case NTAP_OPT_ENABLED
:
269 pTap
->disabled_after_reset
= false;
271 case NTAP_OPT_DISABLED
:
272 pTap
->disabled_after_reset
= true;
274 case NTAP_OPT_EXPECTED_ID
:
276 uint32_t *new_expected_ids
;
278 e
= Jim_GetOpt_Wide(goi
, &w
);
280 Jim_SetResult_sprintf(goi
->interp
, "option: %s bad parameter", n
->name
);
281 free((void *)pTap
->dotted_name
);
286 new_expected_ids
= malloc(sizeof(uint32_t) * (pTap
->expected_ids_cnt
+ 1));
287 if (new_expected_ids
== NULL
) {
288 Jim_SetResult_sprintf(goi
->interp
, "no memory");
289 free((void *)pTap
->dotted_name
);
294 memcpy(new_expected_ids
, pTap
->expected_ids
, sizeof(uint32_t) * pTap
->expected_ids_cnt
);
296 new_expected_ids
[pTap
->expected_ids_cnt
] = w
;
298 free(pTap
->expected_ids
);
299 pTap
->expected_ids
= new_expected_ids
;
300 pTap
->expected_ids_cnt
++;
304 case NTAP_OPT_IRMASK
:
305 case NTAP_OPT_IRCAPTURE
:
306 e
= Jim_GetOpt_Wide(goi
, &w
);
308 Jim_SetResult_sprintf(goi
->interp
, "option: %s bad parameter", n
->name
);
309 free((void *)pTap
->dotted_name
);
315 if (w
> (jim_wide
) (8 * sizeof(pTap
->ir_capture_value
)))
316 LOG_WARNING("%s: huge IR length %d",
322 case NTAP_OPT_IRMASK
:
323 if (is_bad_irval(pTap
->ir_length
, w
)) {
324 LOG_ERROR("%s: IR mask %x too big",
327 free((void *)pTap
->dotted_name
);
332 LOG_WARNING("%s: nonstandard IR mask",
334 pTap
->ir_capture_mask
= w
;
336 case NTAP_OPT_IRCAPTURE
:
337 if (is_bad_irval(pTap
->ir_length
, w
)) {
338 LOG_ERROR("%s: IR capture %x too big",
341 free((void *)pTap
->dotted_name
);
346 LOG_WARNING("%s: nonstandard IR value",
348 pTap
->ir_capture_value
= w
;
351 } /* switch (n->value) */
352 } /* while (goi->argc) */
354 /* default is enabled-after-reset */
355 pTap
->enabled
= !pTap
->disabled_after_reset
;
357 /* Did all the required option bits get cleared? */
364 Jim_SetResult_sprintf(goi
->interp
,
365 "newtap: %s missing required parameters",
371 static void jtag_tap_handle_event(jtag_tap_t
*tap
, enum jtag_event e
)
373 jtag_tap_event_action_t
* jteap
;
375 for (jteap
= tap
->event_action
; jteap
!= NULL
; jteap
= jteap
->next
) {
376 if (jteap
->event
== e
) {
377 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
380 Jim_Nvp_value2name_simple(nvp_jtag_tap_event
, e
)->name
,
381 Jim_GetString(jteap
->body
, NULL
));
382 if (Jim_EvalObj(interp
, jteap
->body
) != JIM_OK
) {
383 Jim_PrintErrorMessage(interp
);
385 case JTAG_TAP_EVENT_ENABLE
:
386 case JTAG_TAP_EVENT_DISABLE
:
387 /* NOTE: we currently assume the handlers
388 * can't fail. Right here is where we should
389 * really be verifying the scan chains ...
391 tap
->enabled
= (e
== JTAG_TAP_EVENT_ENABLE
);
392 LOG_INFO("JTAG tap: %s %s", tap
->dotted_name
,
393 tap
->enabled
? "enabled" : "disabled");
403 static int jim_jtag_command(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
409 struct command_context_s
*context
;
418 JTAG_CMD_TAPISENABLED
,
424 const Jim_Nvp jtag_cmds
[] = {
425 { .name
= "interface" , .value
= JTAG_CMD_INTERFACE
},
426 { .name
= "arp_init" , .value
= JTAG_CMD_INIT
},
427 { .name
= "arp_init-reset", .value
= JTAG_CMD_INIT_RESET
},
428 { .name
= "newtap" , .value
= JTAG_CMD_NEWTAP
},
429 { .name
= "tapisenabled" , .value
= JTAG_CMD_TAPISENABLED
},
430 { .name
= "tapenable" , .value
= JTAG_CMD_TAPENABLE
},
431 { .name
= "tapdisable" , .value
= JTAG_CMD_TAPDISABLE
},
432 { .name
= "configure" , .value
= JTAG_CMD_CONFIGURE
},
433 { .name
= "cget" , .value
= JTAG_CMD_CGET
},
434 { .name
= "names" , .value
= JTAG_CMD_NAMES
},
436 { .name
= NULL
, .value
= -1 },
439 context
= Jim_GetAssocData(interp
, "context");
440 /* go past the command */
441 Jim_GetOpt_Setup(&goi
, interp
, argc
-1, argv
+ 1);
443 e
= Jim_GetOpt_Nvp(&goi
, jtag_cmds
, &n
);
445 Jim_GetOpt_NvpUnknown(&goi
, jtag_cmds
, 0);
448 Jim_SetEmptyResult(goi
.interp
);
450 case JTAG_CMD_INTERFACE
:
451 /* return the name of the interface */
452 /* TCL code might need to know the exact type... */
453 /* FUTURE: we allow this as a means to "set" the interface. */
455 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
-1, "(no params)");
458 Jim_SetResultString(goi
.interp
, jtag_interface
->name
, -1);
462 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
-1, "(no params)");
465 e
= jtag_init_inner(context
);
467 Jim_SetResult_sprintf(goi
.interp
, "error: %d", e
);
471 case JTAG_CMD_INIT_RESET
:
473 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
-1, "(no params)");
476 e
= jtag_init_reset(context
);
478 Jim_SetResult_sprintf(goi
.interp
, "error: %d", e
);
482 case JTAG_CMD_NEWTAP
:
483 return jim_newtap_cmd(&goi
);
485 case JTAG_CMD_TAPISENABLED
:
486 case JTAG_CMD_TAPENABLE
:
487 case JTAG_CMD_TAPDISABLE
:
489 Jim_SetResultString(goi
.interp
, "Too many parameters",-1);
496 t
= jtag_tap_by_jim_obj(goi
.interp
, goi
.argv
[0]);
501 case JTAG_CMD_TAPISENABLED
:
503 case JTAG_CMD_TAPENABLE
:
506 jtag_tap_handle_event(t
, JTAG_TAP_EVENT_ENABLE
);
510 /* FIXME add JTAG sanity checks, w/o TLR
511 * - scan chain length grew by one (this)
512 * - IDs and IR lengths are as expected
515 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE
);
517 case JTAG_CMD_TAPDISABLE
:
520 jtag_tap_handle_event(t
, JTAG_TAP_EVENT_DISABLE
);
524 /* FIXME add JTAG sanity checks, w/o TLR
525 * - scan chain length shrank by one (this)
526 * - IDs and IR lengths are as expected
529 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE
);
533 Jim_SetResult(goi
.interp
, Jim_NewIntObj(goi
.interp
, e
));
540 Jim_WrongNumArgs(goi
.interp
, 0, NULL
,
541 "cget tap_name queryparm");
548 Jim_GetOpt_Obj(&goi
, &o
);
549 t
= jtag_tap_by_jim_obj(goi
.interp
, o
);
555 return jtag_tap_configure_cmd(&goi
, t
);
559 case JTAG_CMD_CONFIGURE
:
561 Jim_WrongNumArgs(goi
.interp
, 0, NULL
,
562 "configure tap_name attribute value ...");
569 Jim_GetOpt_Obj(&goi
, &o
);
570 t
= jtag_tap_by_jim_obj(goi
.interp
, o
);
576 return jtag_tap_configure_cmd(&goi
, t
);
582 Jim_WrongNumArgs(goi
.interp
, 1, goi
.argv
, "Too many parameters");
585 Jim_SetResult(goi
.interp
, Jim_NewListObj(goi
.interp
, NULL
, 0));
589 for (tap
= jtag_all_taps(); tap
; tap
= tap
->next_tap
) {
590 Jim_ListAppendElement(goi
.interp
,
591 Jim_GetResult(goi
.interp
),
592 Jim_NewStringObj(goi
.interp
,
593 tap
->dotted_name
, -1));
605 void jtag_notify_event(enum jtag_event event
)
609 for (tap
= jtag_all_taps(); tap
; tap
= tap
->next_tap
)
610 jtag_tap_handle_event(tap
, event
);
614 int jtag_register_commands(struct command_context_s
*cmd_ctx
)
616 register_jim(cmd_ctx
, "jtag", jim_jtag_command
, "perform jtag tap actions");
618 register_command(cmd_ctx
, NULL
, "interface", handle_interface_command
,
619 COMMAND_CONFIG
, "try to configure interface");
620 register_command(cmd_ctx
, NULL
,
621 "interface_list", &handle_interface_list_command
,
622 COMMAND_ANY
, "list all built-in interfaces");
623 register_command(cmd_ctx
, NULL
, "jtag_speed", handle_jtag_speed_command
,
624 COMMAND_ANY
, "(DEPRECATED) set jtag speed (if supported)");
625 register_command(cmd_ctx
, NULL
, "jtag_khz", handle_jtag_khz_command
,
626 COMMAND_ANY
, "set maximum jtag speed (if supported); "
627 "parameter is maximum khz, or 0 for adaptive clocking (RTCK).");
628 register_command(cmd_ctx
, NULL
, "jtag_rclk", handle_jtag_rclk_command
,
629 COMMAND_ANY
, "fallback_speed_khz - set JTAG speed to RCLK or use fallback speed");
630 register_command(cmd_ctx
, NULL
, "jtag_device", handle_jtag_device_command
,
631 COMMAND_CONFIG
, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
632 register_command(cmd_ctx
, NULL
, "reset_config", handle_reset_config_command
,
634 "[none/trst_only/srst_only/trst_and_srst] [srst_pulls_trst/trst_pulls_srst] [combined/separate] [trst_push_pull/trst_open_drain] [srst_push_pull/srst_open_drain]");
635 register_command(cmd_ctx
, NULL
, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command
,
636 COMMAND_ANY
, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
637 register_command(cmd_ctx
, NULL
, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command
,
638 COMMAND_ANY
, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
639 register_command(cmd_ctx
, NULL
, "jtag_nsrst_assert_width", handle_jtag_nsrst_assert_width_command
,
640 COMMAND_ANY
, "jtag_nsrst_assert_width <ms> - delay after asserting srst in ms");
641 register_command(cmd_ctx
, NULL
, "jtag_ntrst_assert_width", handle_jtag_ntrst_assert_width_command
,
642 COMMAND_ANY
, "jtag_ntrst_assert_width <ms> - delay after asserting trst in ms");
644 register_command(cmd_ctx
, NULL
, "scan_chain", handle_scan_chain_command
,
645 COMMAND_EXEC
, "print current scan chain configuration");
647 register_command(cmd_ctx
, NULL
, "jtag_reset", handle_jtag_reset_command
,
648 COMMAND_EXEC
, "toggle reset lines <trst> <srst>");
649 register_command(cmd_ctx
, NULL
, "runtest", handle_runtest_command
,
650 COMMAND_EXEC
, "move to Run-Test/Idle, and execute <num_cycles>");
651 register_command(cmd_ctx
, NULL
, "irscan", handle_irscan_command
,
652 COMMAND_EXEC
, "execute IR scan <device> <instr> [dev2] [instr2] ...");
653 register_jim(cmd_ctx
, "drscan", Jim_Command_drscan
, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
654 register_jim(cmd_ctx
, "flush_count", Jim_Command_flush_count
, "returns number of times the JTAG queue has been flushed");
655 register_jim(cmd_ctx
, "pathmove", Jim_Command_pathmove
, "move JTAG to state1 then to state2, state3, etc. <state1>,<state2>,<stat3>...");
657 register_command(cmd_ctx
, NULL
, "verify_ircapture", handle_verify_ircapture_command
,
658 COMMAND_ANY
, "verify value captured during Capture-IR <enable | disable>");
659 register_command(cmd_ctx
, NULL
, "verify_jtag", handle_verify_jtag_command
,
660 COMMAND_ANY
, "verify value capture <enable | disable>");
661 register_command(cmd_ctx
, NULL
, "tms_sequence", handle_tms_sequence_command
,
662 COMMAND_ANY
, "choose short(default) or long tms_sequence <short | long>");
666 static int default_khz(int khz
, int *jtag_speed
)
668 LOG_ERROR("Translation from khz to jtag_speed not implemented");
672 static int default_speed_div(int speed
, int *khz
)
674 LOG_ERROR("Translation from jtag_speed to khz not implemented");
678 static int default_power_dropout(int *dropout
)
680 *dropout
= 0; /* by default we can't detect power dropout */
684 static int default_srst_asserted(int *srst_asserted
)
686 *srst_asserted
= 0; /* by default we can't detect srst asserted */
690 static int handle_interface_command(struct command_context_s
*cmd_ctx
,
691 char *cmd
, char **args
, int argc
)
693 /* check whether the interface is already configured */
696 LOG_WARNING("Interface already configured, ignoring");
700 /* interface name is a mandatory argument */
701 if (argc
!= 1 || args
[0][0] == '\0')
702 return ERROR_COMMAND_SYNTAX_ERROR
;
704 for (unsigned i
= 0; NULL
!= jtag_interfaces
[i
]; i
++)
706 if (strcmp(args
[0], jtag_interfaces
[i
]->name
) != 0)
709 int retval
= jtag_interfaces
[i
]->register_commands(cmd_ctx
);
710 if (ERROR_OK
!= retval
)
713 jtag_interface
= jtag_interfaces
[i
];
715 if (jtag_interface
->khz
== NULL
)
716 jtag_interface
->khz
= default_khz
;
717 if (jtag_interface
->speed_div
== NULL
)
718 jtag_interface
->speed_div
= default_speed_div
;
719 if (jtag_interface
->power_dropout
== NULL
)
720 jtag_interface
->power_dropout
= default_power_dropout
;
721 if (jtag_interface
->srst_asserted
== NULL
)
722 jtag_interface
->srst_asserted
= default_srst_asserted
;
727 /* no valid interface was found (i.e. the configuration option,
728 * didn't match one of the compiled-in interfaces
730 LOG_ERROR("The specified JTAG interface was not found (%s)", args
[0]);
731 handle_interface_list_command(cmd_ctx
, cmd
, args
, argc
);
732 return ERROR_JTAG_INVALID_INTERFACE
;
735 static int handle_interface_list_command(struct command_context_s
*cmd_ctx
,
736 char *cmd
, char **args
, int argc
)
738 if (strcmp(cmd
, "interface_list") == 0 && argc
> 0)
739 return ERROR_COMMAND_SYNTAX_ERROR
;
741 command_print(cmd_ctx
, "The following JTAG interfaces are available:");
742 for (unsigned i
= 0; NULL
!= jtag_interfaces
[i
]; i
++)
744 const char *name
= jtag_interfaces
[i
]->name
;
745 command_print(cmd_ctx
, "%u: %s", i
+ 1, name
);
751 static int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
755 Jim_Obj
*newargs
[ 10 ];
759 * argv[ 0] = ir length
760 * argv[ 1] = ir capture
762 * argv[ 3] = not actually used by anything but in the docs
766 command_print(cmd_ctx
, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
769 command_print(cmd_ctx
, "OLD SYNTAX: DEPRECATED - translating to new syntax");
770 command_print(cmd_ctx
, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
774 command_print(cmd_ctx
, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)");
775 command_print(cmd_ctx
, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
776 command_print(cmd_ctx
, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\"");
777 command_print(cmd_ctx
, "And then refer to the taps by the dotted name.");
779 newargs
[0] = Jim_NewStringObj(interp
, "jtag", -1);
780 newargs
[1] = Jim_NewStringObj(interp
, "newtap", -1);
781 sprintf(buf
, "chip%d", jtag_tap_count());
782 newargs
[2] = Jim_NewStringObj(interp
, buf
, -1);
783 sprintf(buf
, "tap%d", jtag_tap_count());
784 newargs
[3] = Jim_NewStringObj(interp
, buf
, -1);
785 newargs
[4] = Jim_NewStringObj(interp
, "-irlen", -1);
786 newargs
[5] = Jim_NewStringObj(interp
, args
[0], -1);
787 newargs
[6] = Jim_NewStringObj(interp
, "-ircapture", -1);
788 newargs
[7] = Jim_NewStringObj(interp
, args
[1], -1);
789 newargs
[8] = Jim_NewStringObj(interp
, "-irmask", -1);
790 newargs
[9] = Jim_NewStringObj(interp
, args
[2], -1);
792 command_print(cmd_ctx
, "NEW COMMAND:");
793 sprintf(buf
, "%s %s %s %s %s %s %s %s %s %s",
794 Jim_GetString(newargs
[0], NULL
),
795 Jim_GetString(newargs
[1], NULL
),
796 Jim_GetString(newargs
[2], NULL
),
797 Jim_GetString(newargs
[3], NULL
),
798 Jim_GetString(newargs
[4], NULL
),
799 Jim_GetString(newargs
[5], NULL
),
800 Jim_GetString(newargs
[6], NULL
),
801 Jim_GetString(newargs
[7], NULL
),
802 Jim_GetString(newargs
[8], NULL
),
803 Jim_GetString(newargs
[9], NULL
));
805 e
= jim_jtag_command(interp
, 10, newargs
);
807 command_print(cmd_ctx
, "%s", Jim_GetString(Jim_GetResult(interp
), NULL
));
812 static int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
816 tap
= jtag_all_taps();
817 command_print(cmd_ctx
, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
818 command_print(cmd_ctx
, "---|--------------------|---------|------------|------------|------|------|------|---------");
821 uint32_t expected
, expected_mask
, cur_instr
, ii
;
822 expected
= buf_get_u32(tap
->expected
, 0, tap
->ir_length
);
823 expected_mask
= buf_get_u32(tap
->expected_mask
, 0, tap
->ir_length
);
824 cur_instr
= buf_get_u32(tap
->cur_instr
, 0, tap
->ir_length
);
826 command_print(cmd_ctx
,
827 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
828 tap
->abs_chain_position
,
830 tap
->enabled
? 'Y' : 'n',
831 (unsigned int)(tap
->idcode
),
832 (unsigned int)(tap
->expected_ids_cnt
> 0 ? tap
->expected_ids
[0] : 0),
833 (unsigned int)(tap
->ir_length
),
834 (unsigned int)(expected
),
835 (unsigned int)(expected_mask
),
836 (unsigned int)(cur_instr
));
838 for (ii
= 1; ii
< tap
->expected_ids_cnt
; ii
++) {
839 command_print(cmd_ctx
, " | | | | 0x%08x | | | | ",
840 (unsigned int)(tap
->expected_ids
[ii
]));
849 static int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
855 return ERROR_COMMAND_SYNTAX_ERROR
;
857 /* Original versions cared about the order of these tokens:
858 * reset_config signals [combination [trst_type [srst_type]]]
859 * They also clobbered the previous configuration even on error.
861 * Here we don't care about the order, and only change values
862 * which have been explicitly specified.
864 for (; argc
; argc
--, args
++) {
868 m
= RESET_SRST_GATES_JTAG
;
870 if (strcmp(*args
, "srst_gates_jtag") == 0)
872 tmp
= RESET_SRST_GATES_JTAG
;
877 m
= RESET_HAS_TRST
| RESET_HAS_SRST
;
878 if (strcmp(*args
, "none") == 0)
880 else if (strcmp(*args
, "trst_only") == 0)
881 tmp
= RESET_HAS_TRST
;
882 else if (strcmp(*args
, "srst_only") == 0)
883 tmp
= RESET_HAS_SRST
;
884 else if (strcmp(*args
, "trst_and_srst") == 0)
885 tmp
= RESET_HAS_TRST
| RESET_HAS_SRST
;
889 LOG_ERROR("extra reset_config %s spec (%s)",
891 return ERROR_INVALID_ARGUMENTS
;
896 /* combination (options for broken wiring) */
897 m
= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
898 if (strcmp(*args
, "separate") == 0)
899 /* separate reset lines - default */;
900 else if (strcmp(*args
, "srst_pulls_trst") == 0)
901 tmp
|= RESET_SRST_PULLS_TRST
;
902 else if (strcmp(*args
, "trst_pulls_srst") == 0)
903 tmp
|= RESET_TRST_PULLS_SRST
;
904 else if (strcmp(*args
, "combined") == 0)
905 tmp
|= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
909 LOG_ERROR("extra reset_config %s spec (%s)",
910 "combination", *args
);
911 return ERROR_INVALID_ARGUMENTS
;
916 /* trst_type (NOP without HAS_TRST) */
917 m
= RESET_TRST_OPEN_DRAIN
;
918 if (strcmp(*args
, "trst_open_drain") == 0)
919 tmp
|= RESET_TRST_OPEN_DRAIN
;
920 else if (strcmp(*args
, "trst_push_pull") == 0)
921 /* push/pull from adapter - default */;
925 LOG_ERROR("extra reset_config %s spec (%s)",
927 return ERROR_INVALID_ARGUMENTS
;
932 /* srst_type (NOP without HAS_SRST) */
933 m
|= RESET_SRST_PUSH_PULL
;
934 if (strcmp(*args
, "srst_push_pull") == 0)
935 tmp
|= RESET_SRST_PUSH_PULL
;
936 else if (strcmp(*args
, "srst_open_drain") == 0)
937 /* open drain from adapter - default */;
941 LOG_ERROR("extra reset_config %s spec (%s)",
943 return ERROR_INVALID_ARGUMENTS
;
948 /* caller provided nonsense; fail */
949 LOG_ERROR("unknown reset_config flag (%s)", *args
);
950 return ERROR_INVALID_ARGUMENTS
;
953 /* Remember the bits which were specified (mask)
954 * and their new values (new_cfg).
960 /* clear previous values of those bits, save new values */
961 enum reset_types old_cfg
= jtag_get_reset_config();
964 jtag_set_reset_config(new_cfg
);
969 static int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
,
970 char *cmd
, char **args
, int argc
)
973 return ERROR_COMMAND_SYNTAX_ERROR
;
977 int retval
= parse_uint(args
[0], &delay
);
978 if (ERROR_OK
!= retval
)
980 jtag_set_nsrst_delay(delay
);
982 command_print(cmd_ctx
, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
986 static int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
,
987 char *cmd
, char **args
, int argc
)
990 return ERROR_COMMAND_SYNTAX_ERROR
;
994 int retval
= parse_uint(args
[0], &delay
);
995 if (ERROR_OK
!= retval
)
997 jtag_set_ntrst_delay(delay
);
999 command_print(cmd_ctx
, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
1003 static int handle_jtag_nsrst_assert_width_command(struct command_context_s
*cmd_ctx
,
1004 char *cmd
, char **args
, int argc
)
1007 return ERROR_COMMAND_SYNTAX_ERROR
;
1011 int retval
= parse_uint(args
[0], &delay
);
1012 if (ERROR_OK
!= retval
)
1014 jtag_set_nsrst_assert_width(delay
);
1016 command_print(cmd_ctx
, "jtag_nsrst_assert_width: %u", jtag_get_nsrst_assert_width());
1020 static int handle_jtag_ntrst_assert_width_command(struct command_context_s
*cmd_ctx
,
1021 char *cmd
, char **args
, int argc
)
1024 return ERROR_COMMAND_SYNTAX_ERROR
;
1028 int retval
= parse_uint(args
[0], &delay
);
1029 if (ERROR_OK
!= retval
)
1031 jtag_set_ntrst_assert_width(delay
);
1033 command_print(cmd_ctx
, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1037 static int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1039 int retval
= ERROR_OK
;
1041 command_print(cmd_ctx
, "OLD SYNTAX: DEPRECATED - "
1042 "use jtag_khz, not jtag_speed");
1045 return ERROR_COMMAND_SYNTAX_ERROR
;
1048 LOG_DEBUG("handle jtag speed");
1050 unsigned cur_speed
= 0;
1051 int retval
= parse_uint(args
[0], &cur_speed
);
1052 if (ERROR_OK
!= retval
)
1054 retval
= jtag_config_speed(cur_speed
);
1057 command_print(cmd_ctx
, "jtag_speed: %d", jtag_get_speed());
1062 static int handle_jtag_khz_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1065 return ERROR_COMMAND_SYNTAX_ERROR
;
1067 int retval
= ERROR_OK
;
1071 int retval
= parse_uint(args
[0], &khz
);
1072 if (ERROR_OK
!= retval
)
1074 retval
= jtag_config_khz(khz
);
1075 if (ERROR_OK
!= retval
)
1079 int cur_speed
= jtag_get_speed_khz();
1080 retval
= jtag_get_speed_readable(&cur_speed
);
1081 if (ERROR_OK
!= retval
)
1085 command_print(cmd_ctx
, "%d kHz", cur_speed
);
1087 command_print(cmd_ctx
, "RCLK - adaptive");
1092 static int handle_jtag_rclk_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1095 return ERROR_COMMAND_SYNTAX_ERROR
;
1097 int retval
= ERROR_OK
;
1101 int retval
= parse_uint(args
[0], &khz
);
1102 if (ERROR_OK
!= retval
)
1104 retval
= jtag_config_rclk(khz
);
1105 if (ERROR_OK
!= retval
)
1109 int cur_khz
= jtag_get_speed_khz();
1110 retval
= jtag_get_speed_readable(&cur_khz
);
1111 if (ERROR_OK
!= retval
)
1115 command_print(cmd_ctx
, "RCLK not supported - fallback to %d kHz", cur_khz
);
1117 command_print(cmd_ctx
, "RCLK - adaptive");
1122 static int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
,
1123 char *cmd
, char **args
, int argc
)
1126 return ERROR_COMMAND_SYNTAX_ERROR
;
1129 if (args
[0][0] == '1')
1131 else if (args
[0][0] == '0')
1134 return ERROR_COMMAND_SYNTAX_ERROR
;
1137 if (args
[1][0] == '1')
1139 else if (args
[1][0] == '0')
1142 return ERROR_COMMAND_SYNTAX_ERROR
;
1144 if (jtag_interface_init(cmd_ctx
) != ERROR_OK
)
1145 return ERROR_JTAG_INIT_FAILED
;
1147 jtag_add_reset(trst
, srst
);
1148 return jtag_execute_queue();
1151 static int handle_runtest_command(struct command_context_s
*cmd_ctx
,
1152 char *cmd
, char **args
, int argc
)
1155 return ERROR_COMMAND_SYNTAX_ERROR
;
1157 unsigned num_clocks
;
1158 int retval
= parse_uint(args
[0], &num_clocks
);
1159 if (ERROR_OK
!= retval
)
1162 jtag_add_runtest(num_clocks
, TAP_IDLE
);
1163 return jtag_execute_queue();
1167 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1168 * should be stable ... and *NOT* a shift state, otherwise free-running
1169 * jtag clocks could change the values latched by the update state.
1171 static bool scan_is_safe(tap_state_t state
)
1186 static int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1189 scan_field_t
*fields
;
1191 tap_state_t endstate
;
1193 if ((argc
< 2) || (argc
% 2))
1195 return ERROR_COMMAND_SYNTAX_ERROR
;
1198 /* optional "-endstate" "statename" at the end of the arguments,
1199 * so that e.g. IRPAUSE can let us load the data register before
1200 * entering RUN/IDLE to execute the instruction we load here.
1202 endstate
= TAP_IDLE
;
1205 /* have at least one pair of numbers. */
1206 /* is last pair the magic text? */
1207 if (0 == strcmp("-endstate", args
[ argc
- 2 ])) {
1210 cpA
= args
[ argc
-1 ];
1211 for (endstate
= 0 ; endstate
< TAP_NUM_STATES
; endstate
++) {
1212 cpS
= tap_state_name(endstate
);
1213 if (0 == strcmp(cpA
, cpS
)) {
1217 if (endstate
>= TAP_NUM_STATES
) {
1218 return ERROR_COMMAND_SYNTAX_ERROR
;
1220 if (!scan_is_safe(endstate
))
1221 LOG_WARNING("irscan with unsafe "
1222 "endstate \"%s\"", cpA
);
1223 /* found - remove the last 2 args */
1229 int num_fields
= argc
/ 2;
1230 size_t fields_len
= sizeof(scan_field_t
) * num_fields
;
1231 fields
= malloc(fields_len
);
1232 memset(fields
, 0, fields_len
);
1235 for (i
= 0; i
< num_fields
; i
++)
1237 tap
= jtag_tap_by_string(args
[i
*2]);
1241 for (j
= 0; j
< i
; j
++)
1242 free(fields
[j
].out_value
);
1244 command_print(cmd_ctx
, "Tap: %s unknown", args
[i
*2]);
1248 int field_size
= tap
->ir_length
;
1249 fields
[i
].tap
= tap
;
1250 fields
[i
].num_bits
= field_size
;
1251 fields
[i
].out_value
= malloc(CEIL(field_size
, 8));
1254 retval
= parse_u32(args
[i
* 2 + 1], &value
);
1255 if (ERROR_OK
!= retval
)
1257 buf_set_u32(fields
[i
].out_value
, 0, field_size
, value
);
1258 fields
[i
].in_value
= NULL
;
1261 /* did we have an endstate? */
1262 jtag_add_ir_scan(num_fields
, fields
, endstate
);
1264 retval
= jtag_execute_queue();
1267 for (i
= 0; i
< num_fields
; i
++)
1269 if (NULL
!= fields
[i
].out_value
)
1270 free(fields
[i
].out_value
);
1278 static int Jim_Command_drscan(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
)
1281 scan_field_t
*fields
;
1283 int field_count
= 0;
1286 tap_state_t endstate
;
1289 * args[2] = num_bits
1290 * args[3] = hex string
1291 * ... repeat num bits and hex string ...
1294 * args[N-2] = "-endstate"
1295 * args[N-1] = statename
1297 if ((argc
< 4) || ((argc
% 2) != 0))
1299 Jim_WrongNumArgs(interp
, 1, args
, "wrong arguments");
1303 endstate
= TAP_IDLE
;
1305 script_debug(interp
, "drscan", argc
, args
);
1307 /* validate arguments as numbers */
1309 for (i
= 2; i
< argc
; i
+= 2)
1314 e
= Jim_GetLong(interp
, args
[i
], &bits
);
1315 /* If valid - try next arg */
1320 /* Not valid.. are we at the end? */
1321 if (((i
+ 2) != argc
)) {
1322 /* nope, then error */
1326 /* it could be: "-endstate FOO"
1327 * e.g. DRPAUSE so we can issue more instructions
1328 * before entering RUN/IDLE and executing them.
1331 /* get arg as a string. */
1332 cp
= Jim_GetString(args
[i
], NULL
);
1333 /* is it the magic? */
1334 if (0 == strcmp("-endstate", cp
)) {
1335 /* is the statename valid? */
1336 cp
= Jim_GetString(args
[i
+ 1], NULL
);
1338 /* see if it is a valid state name */
1339 endstate
= tap_state_by_name(cp
);
1341 /* update the error message */
1342 Jim_SetResult_sprintf(interp
,"endstate: %s invalid", cp
);
1344 if (!scan_is_safe(endstate
))
1345 LOG_WARNING("drscan with unsafe "
1346 "endstate \"%s\"", cp
);
1348 /* valid - so clear the error */
1350 /* and remove the last 2 args */
1355 /* Still an error? */
1357 return e
; /* too bad */
1359 } /* validate args */
1361 tap
= jtag_tap_by_jim_obj(interp
, args
[1]);
1366 num_fields
= (argc
-2)/2;
1367 fields
= malloc(sizeof(scan_field_t
) * num_fields
);
1368 for (i
= 2; i
< argc
; i
+= 2)
1374 Jim_GetLong(interp
, args
[i
], &bits
);
1375 str
= Jim_GetString(args
[i
+ 1], &len
);
1377 fields
[field_count
].tap
= tap
;
1378 fields
[field_count
].num_bits
= bits
;
1379 fields
[field_count
].out_value
= malloc(CEIL(bits
, 8));
1380 str_to_buf(str
, len
, fields
[field_count
].out_value
, bits
, 0);
1381 fields
[field_count
].in_value
= fields
[field_count
].out_value
;
1385 jtag_add_dr_scan(num_fields
, fields
, endstate
);
1387 retval
= jtag_execute_queue();
1388 if (retval
!= ERROR_OK
)
1390 Jim_SetResultString(interp
, "drscan: jtag execute failed",-1);
1395 Jim_Obj
*list
= Jim_NewListObj(interp
, NULL
, 0);
1396 for (i
= 2; i
< argc
; i
+= 2)
1401 Jim_GetLong(interp
, args
[i
], &bits
);
1402 str
= buf_to_str(fields
[field_count
].in_value
, bits
, 16);
1403 free(fields
[field_count
].out_value
);
1405 Jim_ListAppendElement(interp
, list
, Jim_NewStringObj(interp
, str
, strlen(str
)));
1410 Jim_SetResult(interp
, list
);
1418 static int Jim_Command_pathmove(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
)
1420 tap_state_t states
[8];
1422 if ((argc
< 2) || ((size_t)argc
> (sizeof(states
)/sizeof(*states
) + 1)))
1424 Jim_WrongNumArgs(interp
, 1, args
, "wrong arguments");
1428 script_debug(interp
, "pathmove", argc
, args
);
1431 for (i
= 0; i
< argc
-1; i
++)
1434 cp
= Jim_GetString(args
[i
+ 1], NULL
);
1435 states
[i
] = tap_state_by_name(cp
);
1438 /* update the error message */
1439 Jim_SetResult_sprintf(interp
,"endstate: %s invalid", cp
);
1444 if ((jtag_add_statemove(states
[0]) != ERROR_OK
) || (jtag_execute_queue()!= ERROR_OK
))
1446 Jim_SetResultString(interp
, "pathmove: jtag execute failed",-1);
1450 jtag_add_pathmove(argc
-2, states
+ 1);
1452 if (jtag_execute_queue()!= ERROR_OK
)
1454 Jim_SetResultString(interp
, "pathmove: failed",-1);
1462 static int Jim_Command_flush_count(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *args
)
1464 script_debug(interp
, "flush_count", argc
, args
);
1466 Jim_SetResult(interp
, Jim_NewIntObj(interp
, jtag_get_flush_queue_count()));
1472 static int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1475 return ERROR_COMMAND_SYNTAX_ERROR
;
1479 if (strcmp(args
[0], "enable") == 0)
1480 jtag_set_verify_capture_ir(true);
1481 else if (strcmp(args
[0], "disable") == 0)
1482 jtag_set_verify_capture_ir(false);
1484 return ERROR_COMMAND_SYNTAX_ERROR
;
1487 const char *status
= jtag_will_verify_capture_ir() ? "enabled": "disabled";
1488 command_print(cmd_ctx
, "verify Capture-IR is %s", status
);
1493 static int handle_verify_jtag_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1496 return ERROR_COMMAND_SYNTAX_ERROR
;
1500 if (strcmp(args
[0], "enable") == 0)
1501 jtag_set_verify(true);
1502 else if (strcmp(args
[0], "disable") == 0)
1503 jtag_set_verify(false);
1505 return ERROR_COMMAND_SYNTAX_ERROR
;
1508 const char *status
= jtag_will_verify() ? "enabled": "disabled";
1509 command_print(cmd_ctx
, "verify jtag capture is %s", status
);
1514 static int handle_tms_sequence_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1517 return ERROR_COMMAND_SYNTAX_ERROR
;
1522 if (strcmp(args
[0], "short") == 0)
1523 use_new_table
= true;
1524 else if (strcmp(args
[0], "long") == 0)
1525 use_new_table
= false;
1527 return ERROR_COMMAND_SYNTAX_ERROR
;
1529 tap_use_new_tms_table(use_new_table
);
1532 command_print(cmd_ctx
, "tms sequence is %s",
1533 tap_uses_new_tms_table() ? "short": "long");
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