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 jtag_interface_t
*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
)
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
)
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
)
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");
629 int jtag_add_plain_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
632 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
636 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
637 return ERROR_JTAG_TRST_ASSERTED
;
640 /* allocate memory for a new list member */
641 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
642 last_comand_pointer
= &((*last_cmd
)->next
);
643 (*last_cmd
)->next
= NULL
;
644 (*last_cmd
)->type
= JTAG_SCAN
;
646 /* allocate memory for scan command */
647 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
648 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
649 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
650 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
651 (*last_cmd
)->cmd
.scan
->end_state
= state
;
654 cmd_queue_end_state
= state
;
656 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
657 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
659 if (cmd_queue_end_state
== TAP_TLR
)
660 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
662 cmd_queue_cur_state
= cmd_queue_end_state
;
664 for (i
= 0; i
< num_fields
; i
++)
666 int num_bits
= fields
[i
].num_bits
;
667 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
668 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
669 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
670 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
671 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
672 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
673 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= fields
[i
].in_check_value
;
674 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= fields
[i
].in_check_mask
;
675 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= fields
[i
].in_handler
;
676 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= fields
[i
].in_handler_priv
;
681 int jtag_add_statemove(enum tap_state state
)
683 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
687 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
688 return ERROR_JTAG_TRST_ASSERTED
;
691 /* allocate memory for a new list member */
692 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
693 last_comand_pointer
= &((*last_cmd
)->next
);
694 (*last_cmd
)->next
= NULL
;
695 (*last_cmd
)->type
= JTAG_STATEMOVE
;
697 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
698 (*last_cmd
)->cmd
.statemove
->end_state
= state
;
701 cmd_queue_end_state
= state
;
703 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
704 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
706 if (cmd_queue_end_state
== TAP_TLR
)
707 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
709 cmd_queue_cur_state
= cmd_queue_end_state
;
714 int jtag_add_pathmove(int num_states
, enum tap_state
*path
)
716 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
721 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
722 return ERROR_JTAG_TRST_ASSERTED
;
725 /* the last state has to be a stable state */
726 if (tap_move_map
[path
[num_states
- 1]] == -1)
728 ERROR("TAP path doesn't finish in a stable state");
729 return ERROR_JTAG_NOT_IMPLEMENTED
;
732 /* allocate memory for a new list member */
733 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
734 last_comand_pointer
= &((*last_cmd
)->next
);
735 (*last_cmd
)->next
= NULL
;
736 (*last_cmd
)->type
= JTAG_PATHMOVE
;
738 (*last_cmd
)->cmd
.pathmove
= cmd_queue_alloc(sizeof(pathmove_command_t
));
739 (*last_cmd
)->cmd
.pathmove
->num_states
= num_states
;
740 (*last_cmd
)->cmd
.pathmove
->path
= cmd_queue_alloc(sizeof(enum tap_state
) * num_states
);
742 for (i
= 0; i
< num_states
; i
++)
743 (*last_cmd
)->cmd
.pathmove
->path
[i
] = path
[i
];
745 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
746 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
748 if (cmd_queue_end_state
== TAP_TLR
)
749 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
751 cmd_queue_cur_state
= path
[num_states
- 1];
756 int jtag_add_runtest(int num_cycles
, enum tap_state state
)
758 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
762 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
763 return ERROR_JTAG_TRST_ASSERTED
;
766 /* allocate memory for a new list member */
767 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
768 (*last_cmd
)->next
= NULL
;
769 last_comand_pointer
= &((*last_cmd
)->next
);
770 (*last_cmd
)->type
= JTAG_RUNTEST
;
772 (*last_cmd
)->cmd
.runtest
= cmd_queue_alloc(sizeof(runtest_command_t
));
773 (*last_cmd
)->cmd
.runtest
->num_cycles
= num_cycles
;
774 (*last_cmd
)->cmd
.runtest
->end_state
= state
;
777 cmd_queue_end_state
= state
;
779 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
780 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
782 if (cmd_queue_end_state
== TAP_TLR
)
783 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
785 cmd_queue_cur_state
= cmd_queue_end_state
;
790 int jtag_add_reset(int req_trst
, int req_srst
)
792 int trst_with_tms
= 0;
794 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
797 req_trst
= jtag_trst
;
800 req_srst
= jtag_srst
;
802 /* Make sure that jtag_reset_config allows the requested reset */
803 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
804 if (((jtag_reset_config
& RESET_SRST_PULLS_TRST
) && (req_srst
== 1)) && (req_trst
== 0))
805 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST
;
807 /* if TRST pulls SRST, we reset with TAP T-L-R */
808 if (((jtag_reset_config
& RESET_TRST_PULLS_SRST
) && (req_trst
== 1)) && (req_srst
== 0))
814 if (req_srst
&& !(jtag_reset_config
& RESET_HAS_SRST
))
816 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
817 return ERROR_JTAG_RESET_CANT_SRST
;
820 if (req_trst
&& !(jtag_reset_config
& RESET_HAS_TRST
))
826 /* allocate memory for a new list member */
827 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
828 (*last_cmd
)->next
= NULL
;
829 last_comand_pointer
= &((*last_cmd
)->next
);
830 (*last_cmd
)->type
= JTAG_RESET
;
832 (*last_cmd
)->cmd
.reset
= cmd_queue_alloc(sizeof(reset_command_t
));
833 (*last_cmd
)->cmd
.reset
->trst
= req_trst
;
834 (*last_cmd
)->cmd
.reset
->srst
= req_srst
;
836 jtag_trst
= req_trst
;
837 jtag_srst
= req_srst
;
841 jtag_call_event_callbacks(JTAG_SRST_ASSERTED
);
845 jtag_call_event_callbacks(JTAG_SRST_RELEASED
);
846 if (jtag_nsrst_delay
)
847 jtag_add_sleep(jtag_nsrst_delay
* 1000);
852 last_cmd
= &((*last_cmd
)->next
);
854 /* allocate memory for a new list member */
855 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
856 (*last_cmd
)->next
= NULL
;
857 last_comand_pointer
= &((*last_cmd
)->next
);
858 (*last_cmd
)->type
= JTAG_STATEMOVE
;
860 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
861 (*last_cmd
)->cmd
.statemove
->end_state
= TAP_TLR
;
863 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
864 cmd_queue_cur_state
= TAP_TLR
;
865 cmd_queue_end_state
= TAP_TLR
;
873 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
874 * and inform possible listeners about this
876 cmd_queue_cur_state
= TAP_TLR
;
877 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
881 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
882 * but we might want to add a delay to give the TAP time to settle
884 if (jtag_ntrst_delay
)
885 jtag_add_sleep(jtag_ntrst_delay
* 1000);
892 int jtag_add_end_state(enum tap_state state
)
894 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
896 /* allocate memory for a new list member */
897 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
898 (*last_cmd
)->next
= NULL
;
899 last_comand_pointer
= &((*last_cmd
)->next
);
900 (*last_cmd
)->type
= JTAG_END_STATE
;
902 (*last_cmd
)->cmd
.end_state
= cmd_queue_alloc(sizeof(end_state_command_t
));
903 (*last_cmd
)->cmd
.end_state
->end_state
= state
;
906 cmd_queue_end_state
= state
;
911 int jtag_add_sleep(u32 us
)
913 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
915 /* allocate memory for a new list member */
916 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
917 (*last_cmd
)->next
= NULL
;
918 last_comand_pointer
= &((*last_cmd
)->next
);
919 (*last_cmd
)->type
= JTAG_SLEEP
;
921 (*last_cmd
)->cmd
.sleep
= cmd_queue_alloc(sizeof(sleep_command_t
));
922 (*last_cmd
)->cmd
.sleep
->us
= us
;
927 int jtag_scan_size(scan_command_t
*cmd
)
932 /* count bits in scan command */
933 for (i
= 0; i
< cmd
->num_fields
; i
++)
935 bit_count
+= cmd
->fields
[i
].num_bits
;
941 int jtag_build_buffer(scan_command_t
*cmd
, u8
**buffer
)
946 bit_count
= jtag_scan_size(cmd
);
947 *buffer
= malloc(CEIL(bit_count
, 8));
951 for (i
= 0; i
< cmd
->num_fields
; i
++)
953 if (cmd
->fields
[i
].out_value
)
955 #ifdef _DEBUG_JTAG_IO_
956 char* char_buf
= buf_to_str(cmd
->fields
[i
].out_value
, (cmd
->fields
[i
].num_bits
> 64) ? 64 : cmd
->fields
[i
].num_bits
, 16);
958 buf_set_buf(cmd
->fields
[i
].out_value
, 0, *buffer
, bit_count
, cmd
->fields
[i
].num_bits
);
959 #ifdef _DEBUG_JTAG_IO_
960 DEBUG("fields[%i].out_value: 0x%s", i
, char_buf
);
965 bit_count
+= cmd
->fields
[i
].num_bits
;
972 int jtag_read_buffer(u8
*buffer
, scan_command_t
*cmd
)
978 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
981 for (i
= 0; i
< cmd
->num_fields
; i
++)
983 /* if neither in_value nor in_handler
984 * are specified we don't have to examine this field
986 if (cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_handler
)
988 int num_bits
= cmd
->fields
[i
].num_bits
;
989 u8
*captured
= buf_set_buf(buffer
, bit_count
, malloc(CEIL(num_bits
, 8)), 0, num_bits
);
991 #ifdef _DEBUG_JTAG_IO_
994 char_buf
= buf_to_str(captured
, (num_bits
> 64) ? 64 : num_bits
, 16);
995 DEBUG("fields[%i].in_value: 0x%s", i
, char_buf
);
999 if (cmd
->fields
[i
].in_value
)
1001 buf_cpy(captured
, cmd
->fields
[i
].in_value
, num_bits
);
1003 if (cmd
->fields
[i
].in_handler
)
1005 if (cmd
->fields
[i
].in_handler(cmd
->fields
[i
].in_value
, cmd
->fields
[i
].in_handler_priv
, cmd
->fields
+i
) != ERROR_OK
)
1007 WARNING("in_handler reported a failed check");
1008 retval
= ERROR_JTAG_QUEUE_FAILED
;
1013 /* no in_value specified, but a handler takes care of the scanned data */
1014 if (cmd
->fields
[i
].in_handler
&& (!cmd
->fields
[i
].in_value
))
1016 if (cmd
->fields
[i
].in_handler(captured
, cmd
->fields
[i
].in_handler_priv
, cmd
->fields
+i
) != ERROR_OK
)
1018 /* We're going to call the error:handler later, but if the in_handler
1019 * reported an error we report this failure upstream
1021 WARNING("in_handler reported a failed check");
1022 retval
= ERROR_JTAG_QUEUE_FAILED
;
1028 bit_count
+= cmd
->fields
[i
].num_bits
;
1034 int jtag_check_value(u8
*captured
, void *priv
, scan_field_t
*field
)
1036 int retval
= ERROR_OK
;
1037 int num_bits
= field
->num_bits
;
1039 int compare_failed
= 0;
1041 if (field
->in_check_mask
)
1042 compare_failed
= buf_cmp_mask(captured
, field
->in_check_value
, field
->in_check_mask
, num_bits
);
1044 compare_failed
= buf_cmp(captured
, field
->in_check_value
, num_bits
);
1048 /* An error handler could have caught the failing check
1049 * only report a problem when there wasn't a handler, or if the handler
1050 * acknowledged the error
1054 char *captured_char
= buf_to_str(captured
, (num_bits
> 64) ? 64 : num_bits
, 16);
1055 char *in_check_value_char
= buf_to_str(field
->in_check_value
, (num_bits
> 64) ? 64 : num_bits
, 16);
1057 if (field
->in_check_mask
)
1059 char *in_check_mask_char
;
1060 in_check_mask_char
= buf_to_str(field
->in_check_mask
, (num_bits
> 64) ? 64 : num_bits
, 16);
1061 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
);
1062 free(in_check_mask_char
);
1066 WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char
, in_check_value_char
);
1069 free(captured_char
);
1070 free(in_check_value_char
);
1072 retval
= ERROR_JTAG_QUEUE_FAILED
;
1080 set up checking of this field using the in_handler. The values passed in must be valid until
1081 after jtag_execute() has completed.
1083 void jtag_set_check_value(scan_field_t
*field
, u8
*value
, u8
*mask
, error_handler_t
*in_error_handler
)
1086 field
->in_handler
= jtag_check_value
;
1088 field
->in_handler
= NULL
; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1089 field
->in_handler_priv
= NULL
; /* this will be filled in at the invocation site to point to the field duplicate */
1090 field
->in_check_value
= value
;
1091 field
->in_check_mask
= mask
;
1094 enum scan_type
jtag_scan_type(scan_command_t
*cmd
)
1099 for (i
= 0; i
< cmd
->num_fields
; i
++)
1101 if (cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_handler
)
1103 if (cmd
->fields
[i
].out_value
)
1110 int jtag_execute_queue(void)
1114 retval
= jtag
->execute_queue();
1118 jtag_command_queue
= NULL
;
1119 last_comand_pointer
= &jtag_command_queue
;
1124 int jtag_reset_callback(enum jtag_event event
, void *priv
)
1126 jtag_device_t
*device
= priv
;
1130 if (event
== JTAG_TRST_ASSERTED
)
1132 buf_set_ones(device
->cur_instr
, device
->ir_length
);
1139 void jtag_sleep(u32 us
)
1144 /* Try to examine chain layout according to IEEE 1149.1 §12
1146 int jtag_examine_chain()
1148 jtag_device_t
*device
= jtag_devices
;
1150 u8 idcode_buffer
[JTAG_MAX_CHAIN_SIZE
* 4];
1153 int device_count
= 0;
1154 u8 zero_check
= 0x0;
1155 u8 one_check
= 0xff;
1158 field
.num_bits
= sizeof(idcode_buffer
) * 8;
1159 field
.out_value
= idcode_buffer
;
1160 field
.out_mask
= NULL
;
1161 field
.in_value
= idcode_buffer
;
1162 field
.in_check_value
= NULL
;
1163 field
.in_check_mask
= NULL
;
1164 field
.in_handler
= NULL
;
1165 field
.in_handler_priv
= NULL
;
1167 for (i
= 0; i
< JTAG_MAX_CHAIN_SIZE
; i
++)
1169 buf_set_u32(idcode_buffer
, i
* 32, 32, 0x000000FF);
1172 jtag_add_plain_dr_scan(1, &field
, TAP_TLR
);
1173 jtag_execute_queue();
1175 for (i
= 0; i
< JTAG_MAX_CHAIN_SIZE
* 4; i
++)
1177 zero_check
|= idcode_buffer
[i
];
1178 one_check
&= idcode_buffer
[i
];
1181 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1182 if ((zero_check
== 0x00) || (one_check
== 0xff))
1184 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1185 return ERROR_JTAG_INIT_FAILED
;
1188 for (bit_count
= 0; bit_count
< (JTAG_MAX_CHAIN_SIZE
* 32) - 31;)
1190 u32 idcode
= buf_get_u32(idcode_buffer
, bit_count
, 32);
1191 if ((idcode
& 1) == 0)
1193 /* LSB must not be 0, this indicates a device in bypass */
1204 if (idcode
== 0x000000FF)
1206 /* End of chain (invalid manufacturer ID) */
1212 device
->idcode
= idcode
;
1213 device
= device
->next
;
1217 manufacturer
= (idcode
& 0xffe) >> 1;
1218 part
= (idcode
& 0xffff000) >> 12;
1219 version
= (idcode
& 0xf0000000) >> 28;
1221 INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1222 idcode
, manufacturer
, part
, version
);
1228 /* see if number of discovered devices matches configuration */
1229 if (device_count
!= jtag_num_devices
)
1231 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1232 device_count
, jtag_num_devices
);
1233 ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1234 return ERROR_JTAG_INIT_FAILED
;
1240 int jtag_validate_chain()
1242 jtag_device_t
*device
= jtag_devices
;
1243 int total_ir_length
= 0;
1250 total_ir_length
+= device
->ir_length
;
1251 device
= device
->next
;
1254 total_ir_length
+= 2;
1255 ir_test
= malloc(CEIL(total_ir_length
, 8));
1256 buf_set_ones(ir_test
, total_ir_length
);
1259 field
.num_bits
= total_ir_length
;
1260 field
.out_value
= ir_test
;
1261 field
.out_mask
= NULL
;
1262 field
.in_value
= ir_test
;
1263 field
.in_check_value
= NULL
;
1264 field
.in_check_mask
= NULL
;
1265 field
.in_handler
= NULL
;
1266 field
.in_handler_priv
= NULL
;
1268 jtag_add_plain_ir_scan(1, &field
, TAP_TLR
);
1269 jtag_execute_queue();
1271 device
= jtag_devices
;
1274 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x1)
1276 char *cbuf
= buf_to_str(ir_test
, total_ir_length
, 16);
1277 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf
);
1280 return ERROR_JTAG_INIT_FAILED
;
1282 chain_pos
+= device
->ir_length
;
1283 device
= device
->next
;
1286 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x3)
1288 char *cbuf
= buf_to_str(ir_test
, total_ir_length
, 16);
1289 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf
);
1292 return ERROR_JTAG_INIT_FAILED
;
1300 int jtag_register_commands(struct command_context_s
*cmd_ctx
)
1302 register_command(cmd_ctx
, NULL
, "interface", handle_interface_command
,
1303 COMMAND_CONFIG
, NULL
);
1304 register_command(cmd_ctx
, NULL
, "jtag_speed", handle_jtag_speed_command
,
1305 COMMAND_ANY
, "set jtag speed (if supported) <speed>");
1306 register_command(cmd_ctx
, NULL
, "jtag_device", handle_jtag_device_command
,
1307 COMMAND_CONFIG
, "jtag_device <ir_length> <ir_expected> <ir_mask>");
1308 register_command(cmd_ctx
, NULL
, "reset_config", handle_reset_config_command
,
1309 COMMAND_CONFIG
, NULL
);
1310 register_command(cmd_ctx
, NULL
, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command
,
1311 COMMAND_CONFIG
, NULL
);
1312 register_command(cmd_ctx
, NULL
, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command
,
1313 COMMAND_CONFIG
, NULL
);
1315 register_command(cmd_ctx
, NULL
, "scan_chain", handle_scan_chain_command
,
1316 COMMAND_EXEC
, "print current scan chain configuration");
1318 register_command(cmd_ctx
, NULL
, "endstate", handle_endstate_command
,
1319 COMMAND_EXEC
, "finish JTAG operations in <tap_state>");
1320 register_command(cmd_ctx
, NULL
, "jtag_reset", handle_jtag_reset_command
,
1321 COMMAND_EXEC
, "toggle reset lines <trst> <srst>");
1322 register_command(cmd_ctx
, NULL
, "runtest", handle_runtest_command
,
1323 COMMAND_EXEC
, "move to Run-Test/Idle, and execute <num_cycles>");
1324 register_command(cmd_ctx
, NULL
, "statemove", handle_statemove_command
,
1325 COMMAND_EXEC
, "move to current endstate or [tap_state]");
1326 register_command(cmd_ctx
, NULL
, "irscan", handle_irscan_command
,
1327 COMMAND_EXEC
, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1328 register_command(cmd_ctx
, NULL
, "drscan", handle_drscan_command
,
1329 COMMAND_EXEC
, "execute DR scan <device> <var> [dev2] [var2] ...");
1331 register_command(cmd_ctx
, NULL
, "verify_ircapture", handle_verify_ircapture_command
,
1332 COMMAND_ANY
, "verify value captured during Capture-IR <enable|disable>");
1336 int jtag_interface_init(struct command_context_s
*cmd_ctx
)
1338 if (!jtag_interface
)
1340 /* nothing was previously specified by "interface" command */
1341 ERROR("JTAG interface has to be specified, see \"interface\" command");
1342 return ERROR_JTAG_INVALID_INTERFACE
;
1345 if (jtag_interface
->init() != ERROR_OK
)
1346 return ERROR_JTAG_INIT_FAILED
;
1348 jtag
= jtag_interface
;
1352 int jtag_init(struct command_context_s
*cmd_ctx
)
1354 int i
, validate_tries
= 0;
1355 jtag_device_t
*device
;
1359 if (!jtag
&& jtag_interface_init(cmd_ctx
) != ERROR_OK
)
1360 return ERROR_JTAG_INIT_FAILED
;
1362 device
= jtag_devices
;
1363 jtag_ir_scan_size
= 0;
1364 jtag_num_devices
= 0;
1365 while (device
!= NULL
)
1367 jtag_ir_scan_size
+= device
->ir_length
;
1369 device
= device
->next
;
1372 jtag_add_statemove(TAP_TLR
);
1373 jtag_execute_queue();
1375 /* examine chain first, as this could discover the real chain layout */
1376 if (jtag_examine_chain() != ERROR_OK
)
1378 ERROR("trying to validate configured JTAG chain anyway...");
1381 while (jtag_validate_chain() != ERROR_OK
)
1384 if (validate_tries
> 5)
1386 ERROR("Could not validate JTAG chain, exit");
1388 return ERROR_JTAG_INVALID_INTERFACE
;
1396 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1400 /* check whether the interface is already configured */
1403 WARNING("Interface already configured, ignoring");
1407 /* interface name is a mandatory argument */
1408 if (argc
< 1 || args
[0][0] == '\0')
1410 return ERROR_COMMAND_SYNTAX_ERROR
;
1413 for (i
=0; jtag_interfaces
[i
]; i
++)
1415 if (strcmp(args
[0], jtag_interfaces
[i
]->name
) == 0)
1417 if (jtag_interfaces
[i
]->register_commands(cmd_ctx
) != ERROR_OK
)
1420 jtag_interface
= jtag_interfaces
[i
];
1425 /* no valid interface was found (i.e. the configuration option,
1426 * didn't match one of the compiled-in interfaces
1428 ERROR("No valid jtag interface found (%s)", args
[0]);
1429 ERROR("compiled-in jtag interfaces:");
1430 for (i
= 0; jtag_interfaces
[i
]; i
++)
1432 ERROR("%i: %s", i
, jtag_interfaces
[i
]->name
);
1435 return ERROR_JTAG_INVALID_INTERFACE
;
1438 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1440 jtag_device_t
**last_device_p
= &jtag_devices
;
1444 while ((*last_device_p
)->next
)
1445 last_device_p
= &((*last_device_p
)->next
);
1446 last_device_p
= &((*last_device_p
)->next
);
1452 *last_device_p
= malloc(sizeof(jtag_device_t
));
1453 (*last_device_p
)->ir_length
= strtoul(args
[0], NULL
, 0);
1455 (*last_device_p
)->expected
= malloc((*last_device_p
)->ir_length
);
1456 buf_set_u32((*last_device_p
)->expected
, 0, (*last_device_p
)->ir_length
, strtoul(args
[1], NULL
, 0));
1457 (*last_device_p
)->expected_mask
= malloc((*last_device_p
)->ir_length
);
1458 buf_set_u32((*last_device_p
)->expected_mask
, 0, (*last_device_p
)->ir_length
, strtoul(args
[2], NULL
, 0));
1460 (*last_device_p
)->cur_instr
= malloc((*last_device_p
)->ir_length
);
1461 (*last_device_p
)->bypass
= 1;
1462 buf_set_ones((*last_device_p
)->cur_instr
, (*last_device_p
)->ir_length
);
1464 (*last_device_p
)->next
= NULL
;
1466 jtag_register_event_callback(jtag_reset_callback
, (*last_device_p
));
1473 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1475 jtag_device_t
*device
= jtag_devices
;
1476 int device_count
= 0;
1480 u32 expected
, expected_mask
, cur_instr
;
1481 expected
= buf_get_u32(device
->expected
, 0, device
->ir_length
);
1482 expected_mask
= buf_get_u32(device
->expected_mask
, 0, device
->ir_length
);
1483 cur_instr
= buf_get_u32(device
->cur_instr
, 0, device
->ir_length
);
1484 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
);
1485 device
= device
->next
;
1492 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1496 if (strcmp(args
[0], "none") == 0)
1497 jtag_reset_config
= RESET_NONE
;
1498 else if (strcmp(args
[0], "trst_only") == 0)
1499 jtag_reset_config
= RESET_HAS_TRST
;
1500 else if (strcmp(args
[0], "srst_only") == 0)
1501 jtag_reset_config
= RESET_HAS_SRST
;
1502 else if (strcmp(args
[0], "trst_and_srst") == 0)
1503 jtag_reset_config
= RESET_TRST_AND_SRST
;
1506 ERROR("invalid reset_config argument, defaulting to none");
1507 jtag_reset_config
= RESET_NONE
;
1508 return ERROR_INVALID_ARGUMENTS
;
1514 if (strcmp(args
[1], "srst_pulls_trst") == 0)
1515 jtag_reset_config
|= RESET_SRST_PULLS_TRST
;
1516 else if (strcmp(args
[1], "trst_pulls_srst") == 0)
1517 jtag_reset_config
|= RESET_TRST_PULLS_SRST
;
1518 else if (strcmp(args
[1], "combined") == 0)
1519 jtag_reset_config
|= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
1520 else if (strcmp(args
[1], "separate") == 0)
1521 jtag_reset_config
&= ~(RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
);
1524 ERROR("invalid reset_config argument, defaulting to none");
1525 jtag_reset_config
= RESET_NONE
;
1526 return ERROR_INVALID_ARGUMENTS
;
1532 if (strcmp(args
[2], "trst_open_drain") == 0)
1533 jtag_reset_config
|= RESET_TRST_OPEN_DRAIN
;
1534 else if (strcmp(args
[2], "trst_push_pull") == 0)
1535 jtag_reset_config
&= ~RESET_TRST_OPEN_DRAIN
;
1538 ERROR("invalid reset_config argument, defaulting to none");
1539 jtag_reset_config
= RESET_NONE
;
1540 return ERROR_INVALID_ARGUMENTS
;
1546 if (strcmp(args
[3], "srst_push_pull") == 0)
1547 jtag_reset_config
|= RESET_SRST_PUSH_PULL
;
1548 else if (strcmp(args
[3], "srst_open_drain") == 0)
1549 jtag_reset_config
&= ~RESET_SRST_PUSH_PULL
;
1552 ERROR("invalid reset_config argument, defaulting to none");
1553 jtag_reset_config
= RESET_NONE
;
1554 return ERROR_INVALID_ARGUMENTS
;
1561 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1565 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1570 jtag_nsrst_delay
= strtoul(args
[0], NULL
, 0);
1576 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1580 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1585 jtag_ntrst_delay
= strtoul(args
[0], NULL
, 0);
1591 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1594 command_print(cmd_ctx
, "jtag_speed: %i", jtag_speed
);
1598 /* this command can be called during CONFIG,
1599 * in which case jtag isn't initialized */
1601 jtag
->speed(strtoul(args
[0], NULL
, 0));
1603 jtag_speed
= strtoul(args
[0], NULL
, 0);
1609 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1611 enum tap_state state
;
1615 return ERROR_COMMAND_SYNTAX_ERROR
;
1619 for (state
= 0; state
< 16; state
++)
1621 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1623 jtag_add_end_state(state
);
1624 jtag_execute_queue();
1628 command_print(cmd_ctx
, "current endstate: %s", tap_state_strings
[end_state
]);
1633 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1641 return ERROR_COMMAND_SYNTAX_ERROR
;
1645 if (args
[0][0] == '1')
1647 else if (args
[0][0] == '0')
1651 return ERROR_COMMAND_SYNTAX_ERROR
;
1654 if (args
[1][0] == '1')
1656 else if (args
[1][0] == '0')
1660 return ERROR_COMMAND_SYNTAX_ERROR
;
1663 if (!jtag
&& jtag_interface_init(cmd_ctx
) != ERROR_OK
)
1664 return ERROR_JTAG_INIT_FAILED
;
1666 if ((retval
= jtag_add_reset(trst
, srst
)) != ERROR_OK
)
1670 case ERROR_JTAG_RESET_WOULD_ASSERT_TRST
:
1671 command_print(cmd_ctx
, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args
[1][0]);
1673 case ERROR_JTAG_RESET_CANT_SRST
:
1674 command_print(cmd_ctx
, "can't assert srst because the current reset_config doesn't support it");
1677 command_print(cmd_ctx
, "unknown error");
1680 jtag_execute_queue();
1685 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1689 return ERROR_COMMAND_SYNTAX_ERROR
;
1692 jtag_add_runtest(strtol(args
[0], NULL
, 0), -1);
1693 jtag_execute_queue();
1699 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1701 enum tap_state state
;
1706 for (state
= 0; state
< 16; state
++)
1708 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1715 jtag_add_statemove(state
);
1716 jtag_execute_queue();
1722 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1725 scan_field_t
*fields
;
1727 if ((argc
< 2) || (argc
% 2))
1729 return ERROR_COMMAND_SYNTAX_ERROR
;
1732 fields
= malloc(sizeof(scan_field_t
) * argc
/ 2);
1734 for (i
= 0; i
< argc
/ 2; i
++)
1736 int device
= strtoul(args
[i
*2], NULL
, 0);
1737 int field_size
= jtag_get_device(device
)->ir_length
;
1738 fields
[i
].device
= device
;
1739 fields
[i
].out_value
= malloc(CEIL(field_size
, 8));
1740 buf_set_u32(fields
[i
].out_value
, 0, field_size
, strtoul(args
[i
*2+1], NULL
, 0));
1741 fields
[i
].out_mask
= NULL
;
1742 fields
[i
].in_value
= NULL
;
1743 fields
[i
].in_check_mask
= NULL
;
1744 fields
[i
].in_handler
= NULL
;
1745 fields
[i
].in_handler_priv
= NULL
;
1748 jtag_add_ir_scan(argc
/ 2, fields
, -1);
1749 jtag_execute_queue();
1751 for (i
= 0; i
< argc
/ 2; i
++)
1752 free(fields
[i
].out_value
);
1759 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1761 scan_field_t
*fields
;
1763 int field_count
= 0;
1767 if ((argc
< 2) || (argc
% 2))
1769 return ERROR_COMMAND_SYNTAX_ERROR
;
1772 for (i
= 0; i
< argc
; i
+=2)
1774 var
= get_var_by_namenum(args
[i
+1]);
1777 num_fields
+= var
->num_fields
;
1781 command_print(cmd_ctx
, "variable %s doesn't exist", args
[i
+1]);
1786 fields
= malloc(sizeof(scan_field_t
) * num_fields
);
1788 for (i
= 0; i
< argc
; i
+=2)
1790 var
= get_var_by_namenum(args
[i
+1]);
1792 for (j
= 0; j
< var
->num_fields
; j
++)
1794 fields
[field_count
].device
= strtol(args
[i
], NULL
, 0);
1795 fields
[field_count
].num_bits
= var
->fields
[j
].num_bits
;
1796 fields
[field_count
].out_value
= malloc(CEIL(var
->fields
[j
].num_bits
, 8));
1797 buf_set_u32(fields
[field_count
].out_value
, 0, var
->fields
[j
].num_bits
, var
->fields
[j
].value
);
1798 fields
[field_count
].out_mask
= NULL
;
1799 fields
[field_count
].in_value
= fields
[field_count
].out_value
;
1800 fields
[field_count
].in_check_mask
= NULL
;
1801 fields
[field_count
].in_check_value
= NULL
;
1802 fields
[field_count
].in_handler
= field_le_to_host
;
1803 fields
[field_count
++].in_handler_priv
= &(var
->fields
[j
]);
1807 jtag_add_dr_scan(num_fields
, fields
, -1);
1808 jtag_execute_queue();
1810 for (i
= 0; i
< argc
/ 2; i
++)
1811 free(fields
[i
].out_value
);
1818 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1822 if (strcmp(args
[0], "enable") == 0)
1824 jtag_verify_capture_ir
= 1;
1826 else if (strcmp(args
[0], "disable") == 0)
1828 jtag_verify_capture_ir
= 0;
1831 return ERROR_COMMAND_SYNTAX_ERROR
;
1833 } else if (argc
!= 0)
1835 return ERROR_COMMAND_SYNTAX_ERROR
;
1838 command_print(cmd_ctx
, "verify Capture-IR is %s", (jtag_verify_capture_ir
) ? "enabled": "disabled");
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