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"
36 char* tap_state_strings
[16] =
39 "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
41 "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
44 typedef struct cmd_queue_page_s
48 struct cmd_queue_page_s
*next
;
51 #define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
52 static cmd_queue_page_t
*cmd_queue_pages
= NULL
;
54 /* tap_move[i][j]: tap movement command to go from state i to state j
62 * SD->SD and SI->SI have to be caught in interface specific code
66 /* TLR RTI SD PD SI PI */
67 {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
68 {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
69 {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
70 {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
71 {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
72 {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
75 int tap_move_map
[16] = {
76 0, -1, -1, 2, -1, 3, -1, -1,
77 1, -1, -1, 4, -1, 5, -1, -1
80 tap_transition_t tap_transitions
[16] =
82 {TAP_TLR
, TAP_RTI
}, /* TLR */
83 {TAP_SIS
, TAP_CD
}, /* SDS */
84 {TAP_E1D
, TAP_SD
}, /* CD */
85 {TAP_E1D
, TAP_SD
}, /* SD */
86 {TAP_UD
, TAP_PD
}, /* E1D */
87 {TAP_E2D
, TAP_PD
}, /* PD */
88 {TAP_UD
, TAP_SD
}, /* E2D */
89 {TAP_SDS
, TAP_RTI
}, /* UD */
90 {TAP_SDS
, TAP_RTI
}, /* RTI */
91 {TAP_TLR
, TAP_CI
}, /* SIS */
92 {TAP_E1I
, TAP_SI
}, /* CI */
93 {TAP_E1I
, TAP_SI
}, /* SI */
94 {TAP_UI
, TAP_PI
}, /* E1I */
95 {TAP_E2I
, TAP_PI
}, /* PI */
96 {TAP_UI
, TAP_SI
}, /* E2I */
97 {TAP_SDS
, TAP_RTI
} /* UI */
100 char* jtag_event_strings
[] =
108 enum tap_state end_state
= TAP_TLR
;
109 enum tap_state cur_state
= TAP_TLR
;
113 jtag_command_t
*jtag_command_queue
= NULL
;
114 jtag_command_t
**last_comand_pointer
= &jtag_command_queue
;
115 jtag_device_t
*jtag_devices
= NULL
;
116 int jtag_num_devices
= 0;
117 int jtag_ir_scan_size
= 0;
118 enum reset_types jtag_reset_config
= RESET_NONE
;
119 enum tap_state cmd_queue_end_state
= TAP_TLR
;
120 enum tap_state cmd_queue_cur_state
= TAP_TLR
;
122 int jtag_verify_capture_ir
= 1;
124 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
125 int jtag_nsrst_delay
= 0; /* default to no nSRST delay */
126 int jtag_ntrst_delay
= 0; /* default to no nTRST delay */
128 /* maximum number of JTAG devices expected in the chain
130 #define JTAG_MAX_CHAIN_SIZE 20
132 /* callbacks to inform high-level handlers about JTAG state changes */
133 jtag_event_callback_t
*jtag_event_callbacks
;
135 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
137 #if BUILD_PARPORT == 1
138 extern jtag_interface_t parport_interface
;
141 #if BUILD_FT2232_FTD2XX == 1
142 extern jtag_interface_t ft2232_interface
;
145 #if BUILD_FT2232_LIBFTDI == 1
146 extern jtag_interface_t ft2232_interface
;
149 #if BUILD_AMTJTAGACCEL == 1
150 extern jtag_interface_t amt_jtagaccel_interface
;
153 #if BUILD_EP93XX == 1
154 extern jtag_interface_t ep93xx_interface
;
157 #if BUILD_AT91RM9200 == 1
158 extern jtag_interface_t at91rm9200_interface
;
161 #if BUILD_GW16012 == 1
162 extern jtag_interface_t gw16012_interface
;
165 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
166 extern jtag_interface_t presto_interface
;
169 #if BUILD_USBPROG == 1
170 extern jtag_interface_t usbprog_interface
;
173 jtag_interface_t
*jtag_interfaces
[] = {
174 #if BUILD_PARPORT == 1
177 #if BUILD_FT2232_FTD2XX == 1
180 #if BUILD_FT2232_LIBFTDI == 1
183 #if BUILD_AMTJTAGACCEL == 1
184 &amt_jtagaccel_interface
,
186 #if BUILD_EP93XX == 1
189 #if BUILD_AT91RM9200 == 1
190 &at91rm9200_interface
,
192 #if BUILD_GW16012 == 1
195 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
198 #if BUILD_USBPROG == 1
204 jtag_interface_t
*jtag
= NULL
;
207 char* jtag_interface
= NULL
;
211 /* forward declarations */
212 int jtag_add_statemove(enum tap_state endstate
);
213 int jtag_add_pathmove(int num_states
, enum tap_state
*path
);
214 int jtag_add_runtest(int num_cycles
, enum tap_state endstate
);
215 int jtag_add_reset(int trst
, int srst
);
216 int jtag_add_end_state(enum tap_state endstate
);
217 int jtag_add_sleep(u32 us
);
218 int jtag_execute_queue(void);
219 int jtag_cancel_queue(void);
222 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
223 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
224 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
225 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
226 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
227 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
229 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
231 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
232 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
233 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
234 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
235 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
236 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
238 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
240 int jtag_register_event_callback(int (*callback
)(enum jtag_event event
, void *priv
), void *priv
)
242 jtag_event_callback_t
**callbacks_p
= &jtag_event_callbacks
;
244 if (callback
== NULL
)
246 return ERROR_INVALID_ARGUMENTS
;
251 while ((*callbacks_p
)->next
)
252 callbacks_p
= &((*callbacks_p
)->next
);
253 callbacks_p
= &((*callbacks_p
)->next
);
256 (*callbacks_p
) = malloc(sizeof(jtag_event_callback_t
));
257 (*callbacks_p
)->callback
= callback
;
258 (*callbacks_p
)->priv
= priv
;
259 (*callbacks_p
)->next
= NULL
;
264 int jtag_unregister_event_callback(int (*callback
)(enum jtag_event event
, void *priv
))
266 jtag_event_callback_t
**callbacks_p
= &jtag_event_callbacks
;
268 if (callback
== NULL
)
270 return ERROR_INVALID_ARGUMENTS
;
275 jtag_event_callback_t
**next
= &((*callbacks_p
)->next
);
276 if ((*callbacks_p
)->callback
== callback
)
279 *callbacks_p
= *next
;
287 int jtag_call_event_callbacks(enum jtag_event event
)
289 jtag_event_callback_t
*callback
= jtag_event_callbacks
;
291 DEBUG("jtag event: %s", jtag_event_strings
[event
]);
295 callback
->callback(event
, callback
->priv
);
296 callback
= callback
->next
;
302 /* returns a pointer to the pointer of the last command in queue
303 * this may be a pointer to the root pointer (jtag_command_queue)
304 * or to the next member of the last but one command
306 jtag_command_t
** jtag_get_last_command_p(void)
308 /* jtag_command_t *cmd = jtag_command_queue;
314 return &jtag_command_queue;
318 return last_comand_pointer
;
321 /* returns a pointer to the n-th device in the scan chain */
322 jtag_device_t
* jtag_get_device(int num
)
324 jtag_device_t
*device
= jtag_devices
;
331 device
= device
->next
;
335 ERROR("jtag device number %d not defined", num
);
339 void* cmd_queue_alloc(size_t size
)
341 cmd_queue_page_t
**p_page
= &cmd_queue_pages
;
346 while ((*p_page
)->next
)
347 p_page
= &((*p_page
)->next
);
348 if (CMD_QUEUE_PAGE_SIZE
- (*p_page
)->used
< size
)
349 p_page
= &((*p_page
)->next
);
354 *p_page
= malloc(sizeof(cmd_queue_page_t
));
356 (*p_page
)->address
= malloc(CMD_QUEUE_PAGE_SIZE
);
357 (*p_page
)->next
= NULL
;
360 offset
= (*p_page
)->used
;
361 (*p_page
)->used
+= size
;
363 u8
*t
=(u8
*)((*p_page
)->address
);
367 void cmd_queue_free()
369 cmd_queue_page_t
*page
= cmd_queue_pages
;
373 cmd_queue_page_t
*last
= page
;
379 cmd_queue_pages
= NULL
;
382 int jtag_add_ir_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
, void *dummy_anachronism
)
384 jtag_command_t
**last_cmd
;
385 jtag_device_t
*device
;
391 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
392 return ERROR_JTAG_TRST_ASSERTED
;
395 last_cmd
= jtag_get_last_command_p();
397 /* allocate memory for a new list member */
398 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
399 (*last_cmd
)->next
= NULL
;
400 last_comand_pointer
= &((*last_cmd
)->next
);
401 (*last_cmd
)->type
= JTAG_SCAN
;
403 /* allocate memory for ir scan command */
404 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
405 (*last_cmd
)->cmd
.scan
->ir_scan
= 1;
406 (*last_cmd
)->cmd
.scan
->num_fields
= jtag_num_devices
; /* one field per device */
407 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(jtag_num_devices
* sizeof(scan_field_t
));
408 (*last_cmd
)->cmd
.scan
->end_state
= state
;
411 cmd_queue_end_state
= state
;
413 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
414 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
416 if (cmd_queue_end_state
== TAP_TLR
)
417 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
419 cmd_queue_cur_state
= cmd_queue_end_state
;
421 for (i
= 0; i
< jtag_num_devices
; i
++)
424 device
= jtag_get_device(i
);
425 scan_size
= device
->ir_length
;
426 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= i
;
427 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= scan_size
;
428 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= NULL
;
429 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= NULL
; /* disable verification by default */
431 /* search the list */
432 for (j
= 0; j
< num_fields
; j
++)
434 if (i
== fields
[j
].device
)
437 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[j
].out_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
438 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[j
].out_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
440 if (jtag_verify_capture_ir
)
442 if (fields
[j
].in_handler
==NULL
)
444 jtag_set_check_value((*last_cmd
)->cmd
.scan
->fields
+i
, device
->expected
, device
->expected_mask
, NULL
);
447 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= fields
[j
].in_handler
;
448 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= fields
[j
].in_handler_priv
;
449 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= device
->expected
;
450 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= device
->expected_mask
;
461 /* if a device isn't listed, set it to BYPASS */
462 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_set_ones(cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
463 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= NULL
;
468 /* update device information */
469 buf_cpy((*last_cmd
)->cmd
.scan
->fields
[i
].out_value
, jtag_get_device(i
)->cur_instr
, scan_size
);
475 int jtag_add_plain_ir_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
, void *dummy_anachronism
)
477 jtag_command_t
**last_cmd
;
482 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
483 return ERROR_JTAG_TRST_ASSERTED
;
486 last_cmd
= jtag_get_last_command_p();
488 /* allocate memory for a new list member */
489 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
490 (*last_cmd
)->next
= NULL
;
491 last_comand_pointer
= &((*last_cmd
)->next
);
492 (*last_cmd
)->type
= JTAG_SCAN
;
494 /* allocate memory for ir scan command */
495 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
496 (*last_cmd
)->cmd
.scan
->ir_scan
= 1;
497 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
498 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
499 (*last_cmd
)->cmd
.scan
->end_state
= state
;
502 cmd_queue_end_state
= state
;
504 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
505 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
507 if (cmd_queue_end_state
== TAP_TLR
)
508 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
510 cmd_queue_cur_state
= cmd_queue_end_state
;
512 for (i
= 0; i
< num_fields
; i
++)
514 int num_bits
= fields
[i
].num_bits
;
515 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
516 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
517 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
518 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
519 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
520 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
521 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= fields
[i
].in_check_value
;
522 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= fields
[i
].in_check_mask
;
523 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= NULL
;
524 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= NULL
;
529 int jtag_add_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
, void *dummy_anachronism
)
532 int bypass_devices
= 0;
534 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
535 jtag_device_t
*device
= jtag_devices
;
540 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
541 return ERROR_JTAG_TRST_ASSERTED
;
544 /* count devices in bypass */
549 device
= device
->next
;
552 /* allocate memory for a new list member */
553 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
554 last_comand_pointer
= &((*last_cmd
)->next
);
555 (*last_cmd
)->next
= NULL
;
556 (*last_cmd
)->type
= JTAG_SCAN
;
558 /* allocate memory for dr scan command */
559 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
560 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
561 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
+ bypass_devices
;
562 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc((num_fields
+ bypass_devices
) * sizeof(scan_field_t
));
563 (*last_cmd
)->cmd
.scan
->end_state
= state
;
566 cmd_queue_end_state
= state
;
568 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
569 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
571 if (cmd_queue_end_state
== TAP_TLR
)
572 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
574 cmd_queue_cur_state
= cmd_queue_end_state
;
576 for (i
= 0; i
< jtag_num_devices
; i
++)
579 (*last_cmd
)->cmd
.scan
->fields
[field_count
].device
= i
;
581 for (j
= 0; j
< num_fields
; j
++)
583 if (i
== fields
[j
].device
)
586 scan_size
= fields
[j
].num_bits
;
587 (*last_cmd
)->cmd
.scan
->fields
[field_count
].num_bits
= scan_size
;
588 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_value
= buf_cpy(fields
[j
].out_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
589 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_mask
= buf_cpy(fields
[j
].out_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
590 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_value
= fields
[j
].in_value
;
591 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_value
= fields
[j
].in_check_value
;
592 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_mask
= fields
[j
].in_check_mask
;
593 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_handler
= fields
[j
].in_handler
;
594 (*last_cmd
)->cmd
.scan
->fields
[field_count
++].in_handler_priv
= fields
[j
].in_handler_priv
;
599 /* if a device isn't listed, the BYPASS register should be selected */
600 if (!jtag_get_device(i
)->bypass
)
602 ERROR("BUG: no scan data for a device not in BYPASS");
606 /* program the scan field to 1 bit length, and ignore it's value */
607 (*last_cmd
)->cmd
.scan
->fields
[field_count
].num_bits
= 1;
608 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_value
= NULL
;
609 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_mask
= NULL
;
610 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_value
= NULL
;
611 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_value
= NULL
;
612 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_mask
= NULL
;
613 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_handler
= NULL
;
614 (*last_cmd
)->cmd
.scan
->fields
[field_count
++].in_handler_priv
= NULL
;
618 /* if a device is listed, the BYPASS register must not be selected */
619 if (jtag_get_device(i
)->bypass
)
621 WARNING("scan data for a device in BYPASS");
628 int jtag_add_plain_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
, void *dummy_anachronism
)
631 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
635 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
636 return ERROR_JTAG_TRST_ASSERTED
;
639 /* allocate memory for a new list member */
640 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
641 last_comand_pointer
= &((*last_cmd
)->next
);
642 (*last_cmd
)->next
= NULL
;
643 (*last_cmd
)->type
= JTAG_SCAN
;
645 /* allocate memory for scan command */
646 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
647 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
648 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
649 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
650 (*last_cmd
)->cmd
.scan
->end_state
= state
;
653 cmd_queue_end_state
= state
;
655 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
656 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
658 if (cmd_queue_end_state
== TAP_TLR
)
659 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
661 cmd_queue_cur_state
= cmd_queue_end_state
;
663 for (i
= 0; i
< num_fields
; i
++)
665 int num_bits
= fields
[i
].num_bits
;
666 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
667 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
668 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
669 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
670 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
671 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
672 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= fields
[i
].in_check_value
;
673 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= fields
[i
].in_check_mask
;
674 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= fields
[i
].in_handler
;
675 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= fields
[i
].in_handler_priv
;
680 int jtag_add_statemove(enum tap_state state
)
682 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
686 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
687 return ERROR_JTAG_TRST_ASSERTED
;
690 /* allocate memory for a new list member */
691 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
692 last_comand_pointer
= &((*last_cmd
)->next
);
693 (*last_cmd
)->next
= NULL
;
694 (*last_cmd
)->type
= JTAG_STATEMOVE
;
696 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
697 (*last_cmd
)->cmd
.statemove
->end_state
= state
;
700 cmd_queue_end_state
= state
;
702 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
703 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
705 if (cmd_queue_end_state
== TAP_TLR
)
706 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
708 cmd_queue_cur_state
= cmd_queue_end_state
;
713 int jtag_add_pathmove(int num_states
, enum tap_state
*path
)
715 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
720 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
721 return ERROR_JTAG_TRST_ASSERTED
;
724 /* the last state has to be a stable state */
725 if (tap_move_map
[path
[num_states
- 1]] == -1)
727 ERROR("TAP path doesn't finish in a stable state");
728 return ERROR_JTAG_NOT_IMPLEMENTED
;
731 if (jtag
->support_pathmove
)
733 /* allocate memory for a new list member */
734 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
735 last_comand_pointer
= &((*last_cmd
)->next
);
736 (*last_cmd
)->next
= NULL
;
737 (*last_cmd
)->type
= JTAG_PATHMOVE
;
739 (*last_cmd
)->cmd
.pathmove
= cmd_queue_alloc(sizeof(pathmove_command_t
));
740 (*last_cmd
)->cmd
.pathmove
->num_states
= num_states
;
741 (*last_cmd
)->cmd
.pathmove
->path
= cmd_queue_alloc(sizeof(enum tap_state
) * num_states
);
743 for (i
= 0; i
< num_states
; i
++)
744 (*last_cmd
)->cmd
.pathmove
->path
[i
] = path
[i
];
748 /* validate the desired path, and see if it fits a default path */
753 for (i
= 0; i
< num_states
; i
++)
755 for (j
= i
; j
< num_states
; j
++)
757 if (tap_move_map
[path
[j
]] != -1)
764 if (begin
- end
<= 7) /* a default path spans no more than 7 states */
766 jtag_add_statemove(path
[end
]);
770 ERROR("encountered a TAP path that can't be fulfilled by default paths");
771 return ERROR_JTAG_NOT_IMPLEMENTED
;
778 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
779 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
781 if (cmd_queue_end_state
== TAP_TLR
)
782 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
784 cmd_queue_cur_state
= path
[num_states
- 1];
789 int jtag_add_runtest(int num_cycles
, enum tap_state state
)
791 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
795 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
796 return ERROR_JTAG_TRST_ASSERTED
;
799 /* allocate memory for a new list member */
800 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
801 (*last_cmd
)->next
= NULL
;
802 last_comand_pointer
= &((*last_cmd
)->next
);
803 (*last_cmd
)->type
= JTAG_RUNTEST
;
805 (*last_cmd
)->cmd
.runtest
= cmd_queue_alloc(sizeof(runtest_command_t
));
806 (*last_cmd
)->cmd
.runtest
->num_cycles
= num_cycles
;
807 (*last_cmd
)->cmd
.runtest
->end_state
= state
;
810 cmd_queue_end_state
= state
;
812 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
813 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
815 if (cmd_queue_end_state
== TAP_TLR
)
816 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
818 cmd_queue_cur_state
= cmd_queue_end_state
;
823 int jtag_add_reset(int req_trst
, int req_srst
)
825 int trst_with_tms
= 0;
827 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
830 req_trst
= jtag_trst
;
833 req_srst
= jtag_srst
;
835 /* Make sure that jtag_reset_config allows the requested reset */
836 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
837 if (((jtag_reset_config
& RESET_SRST_PULLS_TRST
) && (req_srst
== 1)) && (req_trst
== 0))
838 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST
;
840 /* if TRST pulls SRST, we reset with TAP T-L-R */
841 if (((jtag_reset_config
& RESET_TRST_PULLS_SRST
) && (req_trst
== 1)) && (req_srst
== 0))
847 if (req_srst
&& !(jtag_reset_config
& RESET_HAS_SRST
))
849 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
850 return ERROR_JTAG_RESET_CANT_SRST
;
853 if (req_trst
&& !(jtag_reset_config
& RESET_HAS_TRST
))
859 /* allocate memory for a new list member */
860 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
861 (*last_cmd
)->next
= NULL
;
862 last_comand_pointer
= &((*last_cmd
)->next
);
863 (*last_cmd
)->type
= JTAG_RESET
;
865 (*last_cmd
)->cmd
.reset
= cmd_queue_alloc(sizeof(reset_command_t
));
866 (*last_cmd
)->cmd
.reset
->trst
= req_trst
;
867 (*last_cmd
)->cmd
.reset
->srst
= req_srst
;
869 jtag_trst
= req_trst
;
870 jtag_srst
= req_srst
;
874 jtag_call_event_callbacks(JTAG_SRST_ASSERTED
);
878 jtag_call_event_callbacks(JTAG_SRST_RELEASED
);
879 if (jtag_nsrst_delay
)
880 jtag_add_sleep(jtag_nsrst_delay
* 1000);
885 last_cmd
= &((*last_cmd
)->next
);
887 /* allocate memory for a new list member */
888 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
889 (*last_cmd
)->next
= NULL
;
890 last_comand_pointer
= &((*last_cmd
)->next
);
891 (*last_cmd
)->type
= JTAG_STATEMOVE
;
893 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
894 (*last_cmd
)->cmd
.statemove
->end_state
= TAP_TLR
;
896 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
897 cmd_queue_cur_state
= TAP_TLR
;
898 cmd_queue_end_state
= TAP_TLR
;
906 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
907 * and inform possible listeners about this
909 cmd_queue_cur_state
= TAP_TLR
;
910 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
914 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
915 * but we might want to add a delay to give the TAP time to settle
917 if (jtag_ntrst_delay
)
918 jtag_add_sleep(jtag_ntrst_delay
* 1000);
925 int jtag_add_end_state(enum tap_state state
)
927 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
929 /* allocate memory for a new list member */
930 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
931 (*last_cmd
)->next
= NULL
;
932 last_comand_pointer
= &((*last_cmd
)->next
);
933 (*last_cmd
)->type
= JTAG_END_STATE
;
935 (*last_cmd
)->cmd
.end_state
= cmd_queue_alloc(sizeof(end_state_command_t
));
936 (*last_cmd
)->cmd
.end_state
->end_state
= state
;
939 cmd_queue_end_state
= state
;
944 int jtag_add_sleep(u32 us
)
946 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
948 /* allocate memory for a new list member */
949 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
950 (*last_cmd
)->next
= NULL
;
951 last_comand_pointer
= &((*last_cmd
)->next
);
952 (*last_cmd
)->type
= JTAG_SLEEP
;
954 (*last_cmd
)->cmd
.sleep
= cmd_queue_alloc(sizeof(sleep_command_t
));
955 (*last_cmd
)->cmd
.sleep
->us
= us
;
960 int jtag_scan_size(scan_command_t
*cmd
)
965 /* count bits in scan command */
966 for (i
= 0; i
< cmd
->num_fields
; i
++)
968 bit_count
+= cmd
->fields
[i
].num_bits
;
974 int jtag_build_buffer(scan_command_t
*cmd
, u8
**buffer
)
979 bit_count
= jtag_scan_size(cmd
);
980 *buffer
= malloc(CEIL(bit_count
, 8));
984 for (i
= 0; i
< cmd
->num_fields
; i
++)
986 if (cmd
->fields
[i
].out_value
)
988 #ifdef _DEBUG_JTAG_IO_
989 char* char_buf
= buf_to_str(cmd
->fields
[i
].out_value
, (cmd
->fields
[i
].num_bits
> 64) ? 64 : cmd
->fields
[i
].num_bits
, 16);
991 buf_set_buf(cmd
->fields
[i
].out_value
, 0, *buffer
, bit_count
, cmd
->fields
[i
].num_bits
);
992 #ifdef _DEBUG_JTAG_IO_
993 DEBUG("fields[%i].out_value: 0x%s", i
, char_buf
);
998 bit_count
+= cmd
->fields
[i
].num_bits
;
1005 int jtag_read_buffer(u8
*buffer
, scan_command_t
*cmd
)
1011 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1014 for (i
= 0; i
< cmd
->num_fields
; i
++)
1016 /* if neither in_value nor in_handler
1017 * are specified we don't have to examine this field
1019 if (cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_handler
)
1021 int num_bits
= cmd
->fields
[i
].num_bits
;
1022 u8
*captured
= buf_set_buf(buffer
, bit_count
, malloc(CEIL(num_bits
, 8)), 0, num_bits
);
1024 #ifdef _DEBUG_JTAG_IO_
1027 char_buf
= buf_to_str(captured
, (num_bits
> 64) ? 64 : num_bits
, 16);
1028 DEBUG("fields[%i].in_value: 0x%s", i
, char_buf
);
1032 if (cmd
->fields
[i
].in_value
)
1034 buf_cpy(captured
, cmd
->fields
[i
].in_value
, num_bits
);
1036 if (cmd
->fields
[i
].in_handler
)
1038 if (cmd
->fields
[i
].in_handler(cmd
->fields
[i
].in_value
, cmd
->fields
[i
].in_handler_priv
, cmd
->fields
+i
) != ERROR_OK
)
1040 WARNING("in_handler reported a failed check");
1041 retval
= ERROR_JTAG_QUEUE_FAILED
;
1046 /* no in_value specified, but a handler takes care of the scanned data */
1047 if (cmd
->fields
[i
].in_handler
&& (!cmd
->fields
[i
].in_value
))
1049 if (cmd
->fields
[i
].in_handler(captured
, cmd
->fields
[i
].in_handler_priv
, cmd
->fields
+i
) != ERROR_OK
)
1051 /* We're going to call the error:handler later, but if the in_handler
1052 * reported an error we report this failure upstream
1054 WARNING("in_handler reported a failed check");
1055 retval
= ERROR_JTAG_QUEUE_FAILED
;
1061 bit_count
+= cmd
->fields
[i
].num_bits
;
1067 int jtag_check_value(u8
*captured
, void *priv
, scan_field_t
*field
)
1069 int retval
= ERROR_OK
;
1070 int num_bits
= field
->num_bits
;
1072 int compare_failed
= 0;
1074 if (field
->in_check_mask
)
1075 compare_failed
= buf_cmp_mask(captured
, field
->in_check_value
, field
->in_check_mask
, num_bits
);
1077 compare_failed
= buf_cmp(captured
, field
->in_check_value
, num_bits
);
1081 /* An error handler could have caught the failing check
1082 * only report a problem when there wasn't a handler, or if the handler
1083 * acknowledged the error
1087 char *captured_char
= buf_to_str(captured
, (num_bits
> 64) ? 64 : num_bits
, 16);
1088 char *in_check_value_char
= buf_to_str(field
->in_check_value
, (num_bits
> 64) ? 64 : num_bits
, 16);
1090 if (field
->in_check_mask
)
1092 char *in_check_mask_char
;
1093 in_check_mask_char
= buf_to_str(field
->in_check_mask
, (num_bits
> 64) ? 64 : num_bits
, 16);
1094 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
);
1095 free(in_check_mask_char
);
1099 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char
, in_check_value_char
);
1102 free(captured_char
);
1103 free(in_check_value_char
);
1111 set up checking of this field using the in_handler. The values passed in must be valid until
1112 after jtag_execute() has completed.
1114 void jtag_set_check_value(scan_field_t
*field
, u8
*value
, u8
*mask
, error_handler_t
*in_error_handler
)
1117 field
->in_handler
= jtag_check_value
;
1119 field
->in_handler
= NULL
; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1120 field
->in_handler_priv
= NULL
; /* this will be filled in at the invocation site to point to the field duplicate */
1121 field
->in_check_value
= value
;
1122 field
->in_check_mask
= mask
;
1125 enum scan_type
jtag_scan_type(scan_command_t
*cmd
)
1130 for (i
= 0; i
< cmd
->num_fields
; i
++)
1132 if (cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_handler
)
1134 if (cmd
->fields
[i
].out_value
)
1141 int jtag_execute_queue(void)
1145 retval
= jtag
->execute_queue();
1149 jtag_command_queue
= NULL
;
1150 last_comand_pointer
= &jtag_command_queue
;
1155 int jtag_cancel_queue(void)
1158 jtag_command_queue
= NULL
;
1159 last_comand_pointer
= &jtag_command_queue
;
1164 int jtag_reset_callback(enum jtag_event event
, void *priv
)
1166 jtag_device_t
*device
= priv
;
1170 if (event
== JTAG_TRST_ASSERTED
)
1172 buf_set_ones(device
->cur_instr
, device
->ir_length
);
1179 void jtag_sleep(u32 us
)
1184 /* Try to examine chain layout according to IEEE 1149.1 §12
1186 int jtag_examine_chain()
1188 jtag_device_t
*device
= jtag_devices
;
1190 u8 idcode_buffer
[JTAG_MAX_CHAIN_SIZE
* 4];
1193 int device_count
= 0;
1194 u8 zero_check
= 0x0;
1195 u8 one_check
= 0xff;
1198 field
.num_bits
= sizeof(idcode_buffer
) * 8;
1199 field
.out_value
= idcode_buffer
;
1200 field
.out_mask
= NULL
;
1201 field
.in_value
= idcode_buffer
;
1202 field
.in_check_value
= NULL
;
1203 field
.in_check_mask
= NULL
;
1204 field
.in_handler
= NULL
;
1205 field
.in_handler_priv
= NULL
;
1207 for (i
= 0; i
< JTAG_MAX_CHAIN_SIZE
; i
++)
1209 buf_set_u32(idcode_buffer
, i
* 32, 32, 0x000000FF);
1212 jtag_add_plain_dr_scan(1, &field
, TAP_TLR
, NULL
);
1213 jtag_execute_queue();
1215 for (i
= 0; i
< JTAG_MAX_CHAIN_SIZE
* 4; i
++)
1217 zero_check
|= idcode_buffer
[i
];
1218 one_check
&= idcode_buffer
[i
];
1221 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1222 if ((zero_check
== 0x00) || (one_check
== 0xff))
1224 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1225 return ERROR_JTAG_INIT_FAILED
;
1228 for (bit_count
= 0; bit_count
< (JTAG_MAX_CHAIN_SIZE
* 32) - 31;)
1230 u32 idcode
= buf_get_u32(idcode_buffer
, bit_count
, 32);
1231 if ((idcode
& 1) == 0)
1233 /* LSB must not be 0, this indicates a device in bypass */
1244 if (idcode
== 0x000000FF)
1246 /* End of chain (invalid manufacturer ID) */
1252 device
->idcode
= idcode
;
1253 device
= device
->next
;
1257 manufacturer
= (idcode
& 0xffe) >> 1;
1258 part
= (idcode
& 0xffff000) >> 12;
1259 version
= (idcode
& 0xf0000000) >> 28;
1261 INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1262 idcode
, manufacturer
, part
, version
);
1268 /* see if number of discovered devices matches configuration */
1269 if (device_count
!= jtag_num_devices
)
1271 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1272 device_count
, jtag_num_devices
);
1273 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1274 return ERROR_JTAG_INIT_FAILED
;
1280 int jtag_validate_chain()
1282 jtag_device_t
*device
= jtag_devices
;
1283 int total_ir_length
= 0;
1290 total_ir_length
+= device
->ir_length
;
1291 device
= device
->next
;
1294 total_ir_length
+= 2;
1295 ir_test
= malloc(CEIL(total_ir_length
, 8));
1296 buf_set_ones(ir_test
, total_ir_length
);
1299 field
.num_bits
= total_ir_length
;
1300 field
.out_value
= ir_test
;
1301 field
.out_mask
= NULL
;
1302 field
.in_value
= ir_test
;
1303 field
.in_check_value
= NULL
;
1304 field
.in_check_mask
= NULL
;
1305 field
.in_handler
= NULL
;
1306 field
.in_handler_priv
= NULL
;
1308 jtag_add_plain_ir_scan(1, &field
, TAP_TLR
, NULL
);
1309 jtag_execute_queue();
1311 device
= jtag_devices
;
1314 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x1)
1316 char *cbuf
= buf_to_str(ir_test
, total_ir_length
, 16);
1317 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf
);
1320 return ERROR_JTAG_INIT_FAILED
;
1322 chain_pos
+= device
->ir_length
;
1323 device
= device
->next
;
1326 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x3)
1328 char *cbuf
= buf_to_str(ir_test
, total_ir_length
, 16);
1329 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf
);
1332 return ERROR_JTAG_INIT_FAILED
;
1340 int jtag_register_commands(struct command_context_s
*cmd_ctx
)
1342 register_command(cmd_ctx
, NULL
, "interface", handle_interface_command
,
1343 COMMAND_CONFIG
, NULL
);
1344 register_command(cmd_ctx
, NULL
, "jtag_speed", handle_jtag_speed_command
,
1345 COMMAND_ANY
, "set jtag speed (if supported) <speed>");
1346 register_command(cmd_ctx
, NULL
, "jtag_device", handle_jtag_device_command
,
1347 COMMAND_CONFIG
, NULL
);
1348 register_command(cmd_ctx
, NULL
, "reset_config", handle_reset_config_command
,
1349 COMMAND_CONFIG
, NULL
);
1350 register_command(cmd_ctx
, NULL
, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command
,
1351 COMMAND_CONFIG
, NULL
);
1352 register_command(cmd_ctx
, NULL
, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command
,
1353 COMMAND_CONFIG
, NULL
);
1355 register_command(cmd_ctx
, NULL
, "scan_chain", handle_scan_chain_command
,
1356 COMMAND_EXEC
, "print current scan chain configuration");
1358 register_command(cmd_ctx
, NULL
, "endstate", handle_endstate_command
,
1359 COMMAND_EXEC
, "finish JTAG operations in <tap_state>");
1360 register_command(cmd_ctx
, NULL
, "jtag_reset", handle_jtag_reset_command
,
1361 COMMAND_EXEC
, "toggle reset lines <trst> <srst>");
1362 register_command(cmd_ctx
, NULL
, "runtest", handle_runtest_command
,
1363 COMMAND_EXEC
, "move to Run-Test/Idle, and execute <num_cycles>");
1364 register_command(cmd_ctx
, NULL
, "statemove", handle_statemove_command
,
1365 COMMAND_EXEC
, "move to current endstate or [tap_state]");
1366 register_command(cmd_ctx
, NULL
, "irscan", handle_irscan_command
,
1367 COMMAND_EXEC
, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1368 register_command(cmd_ctx
, NULL
, "drscan", handle_drscan_command
,
1369 COMMAND_EXEC
, "execute DR scan <device> <var> [dev2] [var2] ...");
1371 register_command(cmd_ctx
, NULL
, "verify_ircapture", handle_verify_ircapture_command
,
1372 COMMAND_ANY
, "verify value captured during Capture-IR <enable|disable>");
1376 int jtag_init(struct command_context_s
*cmd_ctx
)
1378 int i
, validate_tries
= 0;
1382 if (jtag_speed
== -1)
1385 if (jtag_interface
&& (jtag_interface
[0] != 0))
1386 /* configuration var 'jtag_interface' is set, and not empty */
1387 for (i
= 0; jtag_interfaces
[i
]; i
++)
1389 if (strcmp(jtag_interface
, jtag_interfaces
[i
]->name
) == 0)
1391 jtag_device_t
*device
;
1392 device
= jtag_devices
;
1394 if (jtag_interfaces
[i
]->init() != ERROR_OK
)
1395 return ERROR_JTAG_INIT_FAILED
;
1396 jtag
= jtag_interfaces
[i
];
1398 jtag_ir_scan_size
= 0;
1399 jtag_num_devices
= 0;
1400 while (device
!= NULL
)
1402 jtag_ir_scan_size
+= device
->ir_length
;
1404 device
= device
->next
;
1407 jtag_add_statemove(TAP_TLR
);
1408 jtag_execute_queue();
1410 /* examine chain first, as this could discover the real chain layout */
1411 if (jtag_examine_chain() != ERROR_OK
)
1413 ERROR("trying to validate configured JTAG chain anyway...");
1416 while (jtag_validate_chain() != ERROR_OK
)
1419 if (validate_tries
> 5)
1421 ERROR("Could not validate JTAG chain, exit");
1423 return ERROR_JTAG_INVALID_INTERFACE
;
1432 /* no valid interface was found (i.e. the configuration option,
1433 * didn't match one of the compiled-in interfaces
1435 ERROR("No valid jtag interface found (%s)", jtag_interface
);
1436 ERROR("compiled-in jtag interfaces:");
1437 for (i
= 0; jtag_interfaces
[i
]; i
++)
1439 ERROR("%i: %s", i
, jtag_interfaces
[i
]->name
);
1443 return ERROR_JTAG_INVALID_INTERFACE
;
1446 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1450 /* only if the configuration var isn't overwritten from cmdline */
1451 if (!jtag_interface
)
1453 if (args
[0] && (args
[0][0] != 0))
1455 for (i
=0; jtag_interfaces
[i
]; i
++)
1457 if (strcmp(args
[0], jtag_interfaces
[i
]->name
) == 0)
1459 if (jtag_interfaces
[i
]->register_commands(cmd_ctx
) != ERROR_OK
)
1462 jtag_interface
= jtag_interfaces
[i
]->name
;
1469 /* remember the requested interface name, so we can complain about it later */
1470 jtag_interface
= strdup(args
[0]);
1471 DEBUG("'interface' command didn't specify a valid interface");
1477 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1479 jtag_device_t
**last_device_p
= &jtag_devices
;
1483 while ((*last_device_p
)->next
)
1484 last_device_p
= &((*last_device_p
)->next
);
1485 last_device_p
= &((*last_device_p
)->next
);
1491 *last_device_p
= malloc(sizeof(jtag_device_t
));
1492 (*last_device_p
)->ir_length
= strtoul(args
[0], NULL
, 0);
1494 (*last_device_p
)->expected
= malloc((*last_device_p
)->ir_length
);
1495 buf_set_u32((*last_device_p
)->expected
, 0, (*last_device_p
)->ir_length
, strtoul(args
[1], NULL
, 0));
1496 (*last_device_p
)->expected_mask
= malloc((*last_device_p
)->ir_length
);
1497 buf_set_u32((*last_device_p
)->expected_mask
, 0, (*last_device_p
)->ir_length
, strtoul(args
[2], NULL
, 0));
1499 (*last_device_p
)->cur_instr
= malloc((*last_device_p
)->ir_length
);
1500 (*last_device_p
)->bypass
= 1;
1501 buf_set_ones((*last_device_p
)->cur_instr
, (*last_device_p
)->ir_length
);
1503 (*last_device_p
)->next
= NULL
;
1505 jtag_register_event_callback(jtag_reset_callback
, (*last_device_p
));
1512 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1514 jtag_device_t
*device
= jtag_devices
;
1515 int device_count
= 0;
1519 u32 expected
, expected_mask
, cur_instr
;
1520 expected
= buf_get_u32(device
->expected
, 0, device
->ir_length
);
1521 expected_mask
= buf_get_u32(device
->expected_mask
, 0, device
->ir_length
);
1522 cur_instr
= buf_get_u32(device
->cur_instr
, 0, device
->ir_length
);
1523 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
);
1524 device
= device
->next
;
1531 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1535 if (strcmp(args
[0], "none") == 0)
1536 jtag_reset_config
= RESET_NONE
;
1537 else if (strcmp(args
[0], "trst_only") == 0)
1538 jtag_reset_config
= RESET_HAS_TRST
;
1539 else if (strcmp(args
[0], "srst_only") == 0)
1540 jtag_reset_config
= RESET_HAS_SRST
;
1541 else if (strcmp(args
[0], "trst_and_srst") == 0)
1542 jtag_reset_config
= RESET_TRST_AND_SRST
;
1545 ERROR("invalid reset_config argument, defaulting to none");
1546 jtag_reset_config
= RESET_NONE
;
1547 return ERROR_INVALID_ARGUMENTS
;
1553 if (strcmp(args
[1], "srst_pulls_trst") == 0)
1554 jtag_reset_config
|= RESET_SRST_PULLS_TRST
;
1555 else if (strcmp(args
[1], "trst_pulls_srst") == 0)
1556 jtag_reset_config
|= RESET_TRST_PULLS_SRST
;
1557 else if (strcmp(args
[1], "combined") == 0)
1558 jtag_reset_config
|= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
1559 else if (strcmp(args
[1], "separate") == 0)
1560 jtag_reset_config
&= ~(RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
);
1563 ERROR("invalid reset_config argument, defaulting to none");
1564 jtag_reset_config
= RESET_NONE
;
1565 return ERROR_INVALID_ARGUMENTS
;
1571 if (strcmp(args
[2], "trst_open_drain") == 0)
1572 jtag_reset_config
|= RESET_TRST_OPEN_DRAIN
;
1573 else if (strcmp(args
[2], "trst_push_pull") == 0)
1574 jtag_reset_config
&= ~RESET_TRST_OPEN_DRAIN
;
1577 ERROR("invalid reset_config argument, defaulting to none");
1578 jtag_reset_config
= RESET_NONE
;
1579 return ERROR_INVALID_ARGUMENTS
;
1585 if (strcmp(args
[3], "srst_push_pull") == 0)
1586 jtag_reset_config
|= RESET_SRST_PUSH_PULL
;
1587 else if (strcmp(args
[3], "srst_open_drain") == 0)
1588 jtag_reset_config
&= ~RESET_SRST_PUSH_PULL
;
1591 ERROR("invalid reset_config argument, defaulting to none");
1592 jtag_reset_config
= RESET_NONE
;
1593 return ERROR_INVALID_ARGUMENTS
;
1600 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1604 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1609 jtag_nsrst_delay
= strtoul(args
[0], NULL
, 0);
1615 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1619 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1624 jtag_ntrst_delay
= strtoul(args
[0], NULL
, 0);
1630 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1633 command_print(cmd_ctx
, "jtag_speed: %i", jtag_speed
);
1637 /* this command can be called during CONFIG,
1638 * in which case jtag isn't initialized */
1640 jtag
->speed(strtoul(args
[0], NULL
, 0));
1642 jtag_speed
= strtoul(args
[0], NULL
, 0);
1648 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1650 enum tap_state state
;
1654 command_print(cmd_ctx
, "usage: endstate <tap_state>");
1658 for (state
= 0; state
< 16; state
++)
1660 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1662 jtag_add_end_state(state
);
1663 jtag_execute_queue();
1667 command_print(cmd_ctx
, "current endstate: %s", tap_state_strings
[end_state
]);
1672 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1676 char *usage
= "usage: jtag_reset <trst> <srst>";
1681 command_print(cmd_ctx
, usage
);
1685 if (args
[0][0] == '1')
1687 else if (args
[0][0] == '0')
1691 command_print(cmd_ctx
, usage
);
1695 if (args
[1][0] == '1')
1697 else if (args
[1][0] == '0')
1701 command_print(cmd_ctx
, usage
);
1705 if ((retval
= jtag_add_reset(trst
, srst
)) != ERROR_OK
)
1709 case ERROR_JTAG_RESET_WOULD_ASSERT_TRST
:
1710 command_print(cmd_ctx
, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args
[1][0]);
1712 case ERROR_JTAG_RESET_CANT_SRST
:
1713 command_print(cmd_ctx
, "can't assert srst because the current reset_config doesn't support it");
1716 command_print(cmd_ctx
, "unknown error");
1719 jtag_execute_queue();
1724 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1728 command_print(cmd_ctx
, "usage: runtest <num_cycles>");
1732 jtag_add_runtest(strtol(args
[0], NULL
, 0), -1);
1733 jtag_execute_queue();
1739 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1741 enum tap_state state
;
1746 for (state
= 0; state
< 16; state
++)
1748 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1755 jtag_add_statemove(state
);
1756 jtag_execute_queue();
1762 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1765 scan_field_t
*fields
;
1767 if ((argc
< 2) || (argc
% 2))
1769 command_print(cmd_ctx
, "usage: irscan <device> <instr> [dev2] [instr2] ...");
1773 fields
= malloc(sizeof(scan_field_t
) * argc
/ 2);
1775 for (i
= 0; i
< argc
/ 2; i
++)
1777 int device
= strtoul(args
[i
*2], NULL
, 0);
1778 int field_size
= jtag_get_device(device
)->ir_length
;
1779 fields
[i
].device
= device
;
1780 fields
[i
].out_value
= malloc(CEIL(field_size
, 8));
1781 buf_set_u32(fields
[i
].out_value
, 0, field_size
, strtoul(args
[i
*2+1], NULL
, 0));
1782 fields
[i
].out_mask
= NULL
;
1783 fields
[i
].in_value
= NULL
;
1784 fields
[i
].in_check_mask
= NULL
;
1785 fields
[i
].in_handler
= NULL
;
1786 fields
[i
].in_handler_priv
= NULL
;
1789 jtag_add_ir_scan(argc
/ 2, fields
, -1, NULL
);
1790 jtag_execute_queue();
1792 for (i
= 0; i
< argc
/ 2; i
++)
1793 free(fields
[i
].out_value
);
1800 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1802 scan_field_t
*fields
;
1804 int field_count
= 0;
1808 if ((argc
< 2) || (argc
% 2))
1810 command_print(cmd_ctx
, "usage: drscan <device> <var> [dev2] [var2]");
1814 for (i
= 0; i
< argc
; i
+=2)
1816 var
= get_var_by_namenum(args
[i
+1]);
1819 num_fields
+= var
->num_fields
;
1823 command_print(cmd_ctx
, "variable %s doesn't exist", args
[i
+1]);
1828 fields
= malloc(sizeof(scan_field_t
) * num_fields
);
1830 for (i
= 0; i
< argc
; i
+=2)
1832 var
= get_var_by_namenum(args
[i
+1]);
1834 for (j
= 0; j
< var
->num_fields
; j
++)
1836 fields
[field_count
].device
= strtol(args
[i
], NULL
, 0);
1837 fields
[field_count
].num_bits
= var
->fields
[j
].num_bits
;
1838 fields
[field_count
].out_value
= malloc(CEIL(var
->fields
[j
].num_bits
, 8));
1839 buf_set_u32(fields
[field_count
].out_value
, 0, var
->fields
[j
].num_bits
, var
->fields
[j
].value
);
1840 fields
[field_count
].out_mask
= NULL
;
1841 fields
[field_count
].in_value
= fields
[field_count
].out_value
;
1842 fields
[field_count
].in_check_mask
= NULL
;
1843 fields
[field_count
].in_check_value
= NULL
;
1844 fields
[field_count
].in_handler
= field_le_to_host
;
1845 fields
[field_count
++].in_handler_priv
= &(var
->fields
[j
]);
1849 jtag_add_dr_scan(num_fields
, fields
, -1, NULL
);
1850 jtag_execute_queue();
1852 for (i
= 0; i
< argc
/ 2; i
++)
1853 free(fields
[i
].out_value
);
1860 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1864 command_print(cmd_ctx
, "verify Capture-IR is %s", (jtag_verify_capture_ir
) ? "enabled": "disabled");
1868 if (strcmp(args
[0], "enable") == 0)
1870 jtag_verify_capture_ir
= 1;
1872 else if (strcmp(args
[0], "disable") == 0)
1874 jtag_verify_capture_ir
= 0;
Linking to existing account procedure
If you already have an account and want to add another login method
you
MUST first sign in with your existing account and
then change URL to read
https://review.openocd.org/login/?link
to get to this page again but this time it'll work for linking. Thank you.
SSH host keys fingerprints
1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=.. |
|+o.. . |
|*.o . . |
|+B . . . |
|Bo. = o S |
|Oo.+ + = |
|oB=.* = . o |
| =+=.+ + E |
|. .=o . o |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)