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
64 /* TLR RTI SD PD SI PI */
65 {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
66 {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
67 {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
68 {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
69 {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
70 {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
73 int tap_move_map
[16] = {
74 0, -1, -1, 2, -1, 3, -1, -1,
75 1, -1, -1, 4, -1, 5, -1, -1
78 tap_transition_t tap_transitions
[16] =
80 {TAP_TLR
, TAP_RTI
}, /* TLR */
81 {TAP_SIS
, TAP_CD
}, /* SDS */
82 {TAP_E1D
, TAP_SD
}, /* CD */
83 {TAP_E1D
, TAP_SD
}, /* SD */
84 {TAP_UD
, TAP_PD
}, /* E1D */
85 {TAP_E2D
, TAP_PD
}, /* PD */
86 {TAP_UD
, TAP_SD
}, /* E2D */
87 {TAP_SDS
, TAP_RTI
}, /* UD */
88 {TAP_SDS
, TAP_RTI
}, /* RTI */
89 {TAP_TLR
, TAP_CI
}, /* SIS */
90 {TAP_E1I
, TAP_SI
}, /* CI */
91 {TAP_E1I
, TAP_SI
}, /* SI */
92 {TAP_UI
, TAP_PI
}, /* E1I */
93 {TAP_E2I
, TAP_PI
}, /* PI */
94 {TAP_UI
, TAP_SI
}, /* E2I */
95 {TAP_SDS
, TAP_RTI
} /* UI */
98 enum tap_state end_state
= TAP_TLR
;
99 enum tap_state cur_state
= TAP_TLR
;
103 jtag_command_t
*jtag_command_queue
= NULL
;
104 jtag_command_t
**last_comand_pointer
= &jtag_command_queue
;
105 jtag_device_t
*jtag_devices
= NULL
;
106 int jtag_num_devices
= 0;
107 int jtag_ir_scan_size
= 0;
108 enum reset_types jtag_reset_config
= RESET_NONE
;
109 enum tap_state cmd_queue_end_state
= TAP_TLR
;
110 enum tap_state cmd_queue_cur_state
= TAP_TLR
;
112 int jtag_verify_capture_ir
= 1;
114 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
115 int jtag_nsrst_delay
= 0; /* default to no nSRST delay */
116 int jtag_ntrst_delay
= 0; /* default to no nTRST delay */
118 /* callbacks to inform high-level handlers about JTAG state changes */
119 jtag_event_callback_t
*jtag_event_callbacks
;
121 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
123 #if BUILD_PARPORT == 1
124 extern jtag_interface_t parport_interface
;
127 #if BUILD_FT2232_FTD2XX == 1
128 extern jtag_interface_t ft2232_interface
;
131 #if BUILD_FT2232_LIBFTDI == 1
132 extern jtag_interface_t ft2232_interface
;
135 #if BUILD_AMTJTAGACCEL == 1
136 extern jtag_interface_t amt_jtagaccel_interface
;
139 #if BUILD_EP93XX == 1
140 extern jtag_interface_t ep93xx_interface
;
143 #if BUILD_AT91RM9200 == 1
144 extern jtag_interface_t at91rm9200_interface
;
147 jtag_interface_t
*jtag_interfaces
[] = {
148 #if BUILD_PARPORT == 1
151 #if BUILD_FT2232_FTD2XX == 1
154 #if BUILD_FT2232_LIBFTDI == 1
157 #if BUILD_AMTJTAGACCEL == 1
158 &amt_jtagaccel_interface
,
160 #if BUILD_EP93XX == 1
163 #if BUILD_AT91RM9200 == 1
164 &at91rm9200_interface
,
169 jtag_interface_t
*jtag
= NULL
;
172 char* jtag_interface
= NULL
;
175 /* forward declarations */
178 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
179 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
180 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
181 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
182 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
183 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
185 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
187 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
188 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
189 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
190 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
191 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
192 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
194 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
196 int jtag_register_event_callback(int (*callback
)(enum jtag_event event
, void *priv
), void *priv
)
198 jtag_event_callback_t
**callbacks_p
= &jtag_event_callbacks
;
200 if (callback
== NULL
)
202 return ERROR_INVALID_ARGUMENTS
;
207 while ((*callbacks_p
)->next
)
208 callbacks_p
= &((*callbacks_p
)->next
);
209 callbacks_p
= &((*callbacks_p
)->next
);
212 (*callbacks_p
) = malloc(sizeof(jtag_event_callback_t
));
213 (*callbacks_p
)->callback
= callback
;
214 (*callbacks_p
)->priv
= priv
;
215 (*callbacks_p
)->next
= NULL
;
220 int jtag_unregister_event_callback(int (*callback
)(enum jtag_event event
, void *priv
))
222 jtag_event_callback_t
**callbacks_p
= &jtag_event_callbacks
;
224 if (callback
== NULL
)
226 return ERROR_INVALID_ARGUMENTS
;
231 jtag_event_callback_t
**next
= &((*callbacks_p
)->next
);
232 if ((*callbacks_p
)->callback
== callback
)
235 *callbacks_p
= *next
;
243 int jtag_call_event_callbacks(enum jtag_event event
)
245 jtag_event_callback_t
*callback
= jtag_event_callbacks
;
247 DEBUG("jtag event: %i", event
);
251 callback
->callback(event
, callback
->priv
);
252 callback
= callback
->next
;
258 /* returns a pointer to the pointer of the last command in queue
259 * this may be a pointer to the root pointer (jtag_command_queue)
260 * or to the next member of the last but one command
262 jtag_command_t
** jtag_get_last_command_p(void)
264 /* jtag_command_t *cmd = jtag_command_queue;
270 return &jtag_command_queue;
274 return last_comand_pointer
;
277 /* returns a pointer to the n-th device in the scan chain */
278 jtag_device_t
* jtag_get_device(int num
)
280 jtag_device_t
*device
= jtag_devices
;
287 device
= device
->next
;
294 void* cmd_queue_alloc(size_t size
)
296 cmd_queue_page_t
**p_page
= &cmd_queue_pages
;
301 while ((*p_page
)->next
)
302 p_page
= &((*p_page
)->next
);
303 if (CMD_QUEUE_PAGE_SIZE
- (*p_page
)->used
< size
)
304 p_page
= &((*p_page
)->next
);
309 *p_page
= malloc(sizeof(cmd_queue_page_t
));
311 (*p_page
)->address
= malloc(CMD_QUEUE_PAGE_SIZE
);
312 (*p_page
)->next
= NULL
;
315 offset
= (*p_page
)->used
;
316 (*p_page
)->used
+= size
;
318 return ((*p_page
)->address
) + offset
;
321 void cmd_queue_free()
323 cmd_queue_page_t
*page
= cmd_queue_pages
;
327 cmd_queue_page_t
*last
= page
;
333 cmd_queue_pages
= NULL
;
336 int jtag_add_ir_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
338 jtag_command_t
**last_cmd
;
339 jtag_device_t
*device
;
342 /* int changed = 0; */
346 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
347 return ERROR_JTAG_TRST_ASSERTED
;
351 for (i=0; i<num_fields; i++)
353 device = jtag_get_device(fields[i].device);
356 if (buf_cmp(device->cur_instr, fields[i].out_value, device->ir_length))
361 ERROR("inexistant device specified for ir scan");
362 return ERROR_INVALID_ARGUMENTS;
370 last_cmd
= jtag_get_last_command_p();
372 /* allocate memory for a new list member */
373 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
374 (*last_cmd
)->next
= NULL
;
375 last_comand_pointer
= &((*last_cmd
)->next
);
376 (*last_cmd
)->type
= JTAG_SCAN
;
378 /* allocate memory for ir scan command */
379 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
380 (*last_cmd
)->cmd
.scan
->ir_scan
= 1;
381 (*last_cmd
)->cmd
.scan
->num_fields
= jtag_num_devices
; /* one field per device */
382 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(jtag_num_devices
* sizeof(scan_field_t
));
383 (*last_cmd
)->cmd
.scan
->end_state
= state
;
386 cmd_queue_end_state
= state
;
388 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
389 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
391 if (cmd_queue_end_state
== TAP_TLR
)
392 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
394 cmd_queue_cur_state
= cmd_queue_end_state
;
396 for (i
=0; i
< jtag_num_devices
; i
++)
399 device
= jtag_get_device(i
);
400 scan_size
= device
->ir_length
;
401 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= i
;
402 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= scan_size
;
403 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= NULL
;
404 if (jtag_verify_capture_ir
)
406 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= buf_cpy(device
->expected
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
407 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= buf_cpy(device
->expected_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
411 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= NULL
;
412 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= NULL
;
414 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= NULL
;
415 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= NULL
;
417 /* search the list */
418 for (j
=0; j
< num_fields
; j
++)
420 if (i
== fields
[j
].device
)
423 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[j
].out_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
424 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[j
].out_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
433 /* if a device isn't listed, set it to BYPASS */
434 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_set_ones(cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
435 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= NULL
;
440 /* update device information */
441 buf_cpy((*last_cmd
)->cmd
.scan
->fields
[i
].out_value
, jtag_get_device(i
)->cur_instr
, scan_size
);
447 int jtag_add_plain_ir_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
449 jtag_command_t
**last_cmd
;
454 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
455 return ERROR_JTAG_TRST_ASSERTED
;
458 last_cmd
= jtag_get_last_command_p();
460 /* allocate memory for a new list member */
461 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
462 (*last_cmd
)->next
= NULL
;
463 last_comand_pointer
= &((*last_cmd
)->next
);
464 (*last_cmd
)->type
= JTAG_SCAN
;
466 /* allocate memory for ir scan command */
467 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
468 (*last_cmd
)->cmd
.scan
->ir_scan
= 1;
469 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
470 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
471 (*last_cmd
)->cmd
.scan
->end_state
= state
;
474 cmd_queue_end_state
= state
;
476 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
477 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
479 if (cmd_queue_end_state
== TAP_TLR
)
480 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
482 cmd_queue_cur_state
= cmd_queue_end_state
;
484 for (i
= 0; i
< num_fields
; i
++)
486 int num_bits
= fields
[i
].num_bits
;
487 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
488 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
489 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
490 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
491 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
492 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
493 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= buf_cpy(fields
[i
].in_check_value
, cmd_queue_alloc(num_bytes
), num_bits
);
494 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= buf_cpy(fields
[i
].in_check_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
495 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= NULL
;
496 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= NULL
;
501 int jtag_add_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
504 int bypass_devices
= 0;
506 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
507 jtag_device_t
*device
= jtag_devices
;
512 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
513 return ERROR_JTAG_TRST_ASSERTED
;
516 /* count devices in bypass */
521 device
= device
->next
;
524 /* allocate memory for a new list member */
525 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
526 last_comand_pointer
= &((*last_cmd
)->next
);
527 (*last_cmd
)->next
= NULL
;
528 (*last_cmd
)->type
= JTAG_SCAN
;
530 /* allocate memory for dr scan command */
531 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
532 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
533 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
+ bypass_devices
;
534 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc((num_fields
+ bypass_devices
) * sizeof(scan_field_t
));
535 (*last_cmd
)->cmd
.scan
->end_state
= state
;
538 cmd_queue_end_state
= state
;
540 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
541 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
543 if (cmd_queue_end_state
== TAP_TLR
)
544 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
546 cmd_queue_cur_state
= cmd_queue_end_state
;
548 for (i
=0; i
< jtag_num_devices
; i
++)
551 (*last_cmd
)->cmd
.scan
->fields
[field_count
].device
= i
;
553 for (j
=0; j
< num_fields
; j
++)
555 if (i
== fields
[j
].device
)
558 scan_size
= fields
[j
].num_bits
;
559 (*last_cmd
)->cmd
.scan
->fields
[field_count
].num_bits
= scan_size
;
560 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_value
= buf_cpy(fields
[j
].out_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
561 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_mask
= buf_cpy(fields
[j
].out_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
562 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_value
= fields
[j
].in_value
;
563 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_value
= buf_cpy(fields
[j
].in_check_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
564 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_mask
= buf_cpy(fields
[j
].in_check_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
565 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_handler
= fields
[j
].in_handler
;
566 (*last_cmd
)->cmd
.scan
->fields
[field_count
++].in_handler_priv
= fields
[j
].in_handler_priv
;
571 /* if a device isn't listed, the BYPASS register should be selected */
572 if (!jtag_get_device(i
)->bypass
)
574 ERROR("BUG: no scan data for a device not in BYPASS");
578 /* program the scan field to 1 bit length, and ignore it's value */
579 (*last_cmd
)->cmd
.scan
->fields
[field_count
].num_bits
= 1;
580 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_value
= NULL
;
581 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_mask
= NULL
;
582 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_value
= NULL
;
583 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_value
= NULL
;
584 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_mask
= NULL
;
585 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_handler
= NULL
;
586 (*last_cmd
)->cmd
.scan
->fields
[field_count
++].in_handler_priv
= NULL
;
590 /* if a device is listed, the BYPASS register must not be selected */
591 if (jtag_get_device(i
)->bypass
)
593 ERROR("BUG: scan data for a device in BYPASS");
601 int jtag_add_plain_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
604 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
608 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
609 return ERROR_JTAG_TRST_ASSERTED
;
612 /* allocate memory for a new list member */
613 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
614 last_comand_pointer
= &((*last_cmd
)->next
);
615 (*last_cmd
)->next
= NULL
;
616 (*last_cmd
)->type
= JTAG_SCAN
;
618 /* allocate memory for scan command */
619 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
620 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
621 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
622 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
623 (*last_cmd
)->cmd
.scan
->end_state
= state
;
626 cmd_queue_end_state
= state
;
628 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
629 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
631 if (cmd_queue_end_state
== TAP_TLR
)
632 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
634 cmd_queue_cur_state
= cmd_queue_end_state
;
636 for (i
= 0; i
< num_fields
; i
++)
638 int num_bits
= fields
[i
].num_bits
;
639 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
640 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
641 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
642 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
643 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
644 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
645 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= buf_cpy(fields
[i
].in_check_value
, cmd_queue_alloc(num_bytes
), num_bits
);
646 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= buf_cpy(fields
[i
].in_check_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
647 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= fields
[i
].in_handler
;
648 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= fields
[i
].in_handler_priv
;
653 int jtag_add_statemove(enum tap_state state
)
655 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
659 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
660 return ERROR_JTAG_TRST_ASSERTED
;
663 /* allocate memory for a new list member */
664 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
665 last_comand_pointer
= &((*last_cmd
)->next
);
666 (*last_cmd
)->next
= NULL
;
667 (*last_cmd
)->type
= JTAG_STATEMOVE
;
669 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
670 (*last_cmd
)->cmd
.statemove
->end_state
= state
;
673 cmd_queue_end_state
= state
;
675 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
676 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
678 if (cmd_queue_end_state
== TAP_TLR
)
679 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
681 cmd_queue_cur_state
= cmd_queue_end_state
;
686 int jtag_add_pathmove(int num_states
, enum tap_state
*path
)
688 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
693 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
694 return ERROR_JTAG_TRST_ASSERTED
;
697 /* the last state has to be a stable state */
698 if (tap_move_map
[path
[num_states
- 1]] == -1)
700 ERROR("TAP path doesn't finish in a stable state");
701 return ERROR_JTAG_NOT_IMPLEMENTED
;
704 if (jtag
->support_pathmove
)
706 /* allocate memory for a new list member */
707 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
708 last_comand_pointer
= &((*last_cmd
)->next
);
709 (*last_cmd
)->next
= NULL
;
710 (*last_cmd
)->type
= JTAG_RUNTEST
;
712 (*last_cmd
)->cmd
.pathmove
= cmd_queue_alloc(sizeof(pathmove_command_t
));
713 (*last_cmd
)->cmd
.pathmove
->num_states
= num_states
;
714 (*last_cmd
)->cmd
.pathmove
->path
= cmd_queue_alloc(sizeof(enum tap_state
) * num_states
);
716 for (i
= 0; i
< num_states
; i
++)
717 (*last_cmd
)->cmd
.pathmove
->path
[i
] = path
[i
];
721 /* validate the desired path, and see if it fits a default path */
726 for (i
= 0; i
< num_states
; i
++)
728 for (j
= i
; j
< num_states
; j
++)
730 if (tap_move_map
[path
[j
]] != -1)
737 if (begin
- end
<= 7) /* a default path spans no more than 7 states */
739 jtag_add_statemove(path
[end
]);
743 ERROR("encountered a TAP path that can't be fulfilled by default paths");
744 return ERROR_JTAG_NOT_IMPLEMENTED
;
751 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
752 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
754 if (cmd_queue_end_state
== TAP_TLR
)
755 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
757 cmd_queue_cur_state
= path
[num_states
- 1];
762 int jtag_add_runtest(int num_cycles
, enum tap_state state
)
764 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
768 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
769 return ERROR_JTAG_TRST_ASSERTED
;
772 /* allocate memory for a new list member */
773 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
774 (*last_cmd
)->next
= NULL
;
775 last_comand_pointer
= &((*last_cmd
)->next
);
776 (*last_cmd
)->type
= JTAG_RUNTEST
;
778 (*last_cmd
)->cmd
.runtest
= cmd_queue_alloc(sizeof(runtest_command_t
));
779 (*last_cmd
)->cmd
.runtest
->num_cycles
= num_cycles
;
780 (*last_cmd
)->cmd
.runtest
->end_state
= state
;
783 cmd_queue_end_state
= state
;
785 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
786 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
788 if (cmd_queue_end_state
== TAP_TLR
)
789 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
791 cmd_queue_cur_state
= cmd_queue_end_state
;
796 int jtag_add_reset(int req_trst
, int req_srst
)
798 int trst_with_tms
= 0;
800 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
803 req_trst
= jtag_trst
;
806 req_srst
= jtag_srst
;
808 /* Make sure that jtag_reset_config allows the requested reset */
809 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
810 if (((jtag_reset_config
& RESET_SRST_PULLS_TRST
) && (req_srst
== 1)) && (req_trst
== 0))
811 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST
;
813 /* if TRST pulls SRST, we reset with TAP T-L-R */
814 if (((jtag_reset_config
& RESET_TRST_PULLS_SRST
) && (req_trst
== 1)) && (req_srst
== 0))
820 if (req_srst
&& !(jtag_reset_config
& RESET_HAS_SRST
))
822 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
823 return ERROR_JTAG_RESET_CANT_SRST
;
826 if (req_trst
&& !(jtag_reset_config
& RESET_HAS_TRST
))
832 /* allocate memory for a new list member */
833 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
834 (*last_cmd
)->next
= NULL
;
835 last_comand_pointer
= &((*last_cmd
)->next
);
836 (*last_cmd
)->type
= JTAG_RESET
;
838 (*last_cmd
)->cmd
.reset
= cmd_queue_alloc(sizeof(reset_command_t
));
839 (*last_cmd
)->cmd
.reset
->trst
= req_trst
;
840 (*last_cmd
)->cmd
.reset
->srst
= req_srst
;
842 jtag_trst
= req_trst
;
843 jtag_srst
= req_srst
;
847 jtag_call_event_callbacks(JTAG_SRST_ASSERTED
);
851 jtag_call_event_callbacks(JTAG_SRST_RELEASED
);
852 if (jtag_nsrst_delay
)
853 jtag_add_sleep(jtag_nsrst_delay
* 1000);
858 last_cmd
= &((*last_cmd
)->next
);
860 /* allocate memory for a new list member */
861 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
862 (*last_cmd
)->next
= NULL
;
863 last_comand_pointer
= &((*last_cmd
)->next
);
864 (*last_cmd
)->type
= JTAG_STATEMOVE
;
866 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
867 (*last_cmd
)->cmd
.statemove
->end_state
= TAP_TLR
;
869 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
870 cmd_queue_cur_state
= TAP_TLR
;
871 cmd_queue_end_state
= TAP_TLR
;
879 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
880 * and inform possible listeners about this
882 cmd_queue_cur_state
= TAP_TLR
;
883 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
887 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
888 * but we might want to add a delay to give the TAP time to settle
890 if (jtag_ntrst_delay
)
891 jtag_add_sleep(jtag_ntrst_delay
* 1000);
898 int jtag_add_end_state(enum tap_state state
)
900 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
902 /* allocate memory for a new list member */
903 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
904 (*last_cmd
)->next
= NULL
;
905 last_comand_pointer
= &((*last_cmd
)->next
);
906 (*last_cmd
)->type
= JTAG_END_STATE
;
908 (*last_cmd
)->cmd
.end_state
= cmd_queue_alloc(sizeof(end_state_command_t
));
909 (*last_cmd
)->cmd
.end_state
->end_state
= state
;
912 cmd_queue_end_state
= state
;
917 int jtag_add_sleep(u32 us
)
919 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
921 /* allocate memory for a new list member */
922 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
923 (*last_cmd
)->next
= NULL
;
924 last_comand_pointer
= &((*last_cmd
)->next
);
925 (*last_cmd
)->type
= JTAG_SLEEP
;
927 (*last_cmd
)->cmd
.sleep
= cmd_queue_alloc(sizeof(sleep_command_t
));
928 (*last_cmd
)->cmd
.sleep
->us
= us
;
933 int jtag_scan_size(scan_command_t
*cmd
)
938 /* count bits in scan command */
939 for (i
=0; i
<cmd
->num_fields
; i
++)
941 bit_count
+= cmd
->fields
[i
].num_bits
;
947 int jtag_build_buffer(scan_command_t
*cmd
, u8
**buffer
)
952 bit_count
= jtag_scan_size(cmd
);
953 *buffer
= malloc(CEIL(bit_count
, 8));
957 for (i
= 0; i
< cmd
->num_fields
; i
++)
959 if (cmd
->fields
[i
].out_value
)
961 char* char_buf
= buf_to_char(cmd
->fields
[i
].out_value
, cmd
->fields
[i
].num_bits
);
962 buf_set_buf(cmd
->fields
[i
].out_value
, 0, *buffer
, bit_count
, cmd
->fields
[i
].num_bits
);
963 #ifdef _DEBUG_JTAG_IO_
964 DEBUG("fields[%i].out_value: %s", i
, char_buf
);
969 bit_count
+= cmd
->fields
[i
].num_bits
;
976 int jtag_read_buffer(u8
*buffer
, scan_command_t
*cmd
)
980 int retval
= ERROR_OK
;
982 for (i
=0; i
< cmd
->num_fields
; i
++)
984 /* if neither in_value, in_check_value nor in_handler
985 * are specified we don't have to examine this field
987 if (cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_check_value
|| cmd
->fields
[i
].in_handler
)
989 int num_bits
= cmd
->fields
[i
].num_bits
;
990 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_char(captured
, num_bits
);
995 DEBUG("fields[%i].in_value: %s", i
, char_buf
);
1000 if (cmd
->fields
[i
].in_value
)
1002 buf_cpy(captured
, cmd
->fields
[i
].in_value
, num_bits
);
1004 if (cmd
->fields
[i
].in_handler
)
1006 if (cmd
->fields
[i
].in_handler(cmd
->fields
[i
].in_value
, cmd
->fields
[i
].in_handler_priv
) != ERROR_OK
)
1008 /* TODO: error reporting */
1009 WARNING("in_handler reported a failed check");
1010 retval
= ERROR_JTAG_QUEUE_FAILED
;
1015 /* no in_value specified, but a handler takes care of the scanned data */
1016 if (cmd
->fields
[i
].in_handler
&& (!cmd
->fields
[i
].in_value
))
1018 if (cmd
->fields
[i
].in_handler(captured
, cmd
->fields
[i
].in_handler_priv
) != ERROR_OK
)
1020 /* TODO: error reporting */
1021 WARNING("in_handler reported a failed check");
1022 retval
= ERROR_JTAG_QUEUE_FAILED
;
1027 if (cmd
->fields
[i
].in_check_value
)
1029 u8
*captured
= buf_set_buf(buffer
, bit_count
, malloc(CEIL(num_bits
, 8)), 0, num_bits
);
1030 if ((cmd
->fields
[i
].in_check_mask
&& buf_cmp_mask(captured
, cmd
->fields
[i
].in_check_value
, cmd
->fields
[i
].in_check_mask
, num_bits
))
1031 || (!cmd
->fields
[i
].in_check_mask
&& buf_cmp(captured
, cmd
->fields
[i
].in_check_mask
, num_bits
)))
1033 char *captured_char
= buf_to_char(captured
, num_bits
);
1034 char *in_check_value_char
= buf_to_char(cmd
->fields
[i
].in_check_value
, num_bits
);
1035 char *in_check_mask_char
= buf_to_char(cmd
->fields
[i
].in_check_mask
, num_bits
);
1036 /* TODO: error reporting */
1037 WARNING("value captured during scan didn't pass the requested check: captured: %s check_value: %s check_mask: %s", captured_char
, in_check_value_char
, in_check_mask_char
);
1038 retval
= ERROR_JTAG_QUEUE_FAILED
;
1039 free(captured_char
);
1040 free(in_check_value_char
);
1041 free(in_check_mask_char
);
1046 bit_count
+= cmd
->fields
[i
].num_bits
;
1052 enum scan_type
jtag_scan_type(scan_command_t
*cmd
)
1057 for (i
=0; i
< cmd
->num_fields
; i
++)
1059 if (cmd
->fields
[i
].in_check_value
|| cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_handler
)
1061 if (cmd
->fields
[i
].out_value
)
1068 int jtag_execute_queue(void)
1072 retval
= jtag
->execute_queue();
1076 jtag_command_queue
= NULL
;
1077 last_comand_pointer
= &jtag_command_queue
;
1082 int jtag_cancel_queue(void)
1085 jtag_command_queue
= NULL
;
1086 last_comand_pointer
= &jtag_command_queue
;
1091 int jtag_reset_callback(enum jtag_event event
, void *priv
)
1093 jtag_device_t
*device
= priv
;
1097 if (event
== JTAG_TRST_ASSERTED
)
1099 buf_set_ones(device
->cur_instr
, device
->ir_length
);
1106 void jtag_sleep(u32 us
)
1111 int jtag_validate_chain()
1113 jtag_device_t
*device
= jtag_devices
;
1114 int total_ir_length
= 0;
1121 total_ir_length
+= device
->ir_length
;
1122 device
= device
->next
;
1125 total_ir_length
+= 2;
1126 ir_test
= malloc(CEIL(total_ir_length
, 8));
1127 buf_set_ones(ir_test
, total_ir_length
);
1130 field
.num_bits
= total_ir_length
;
1131 field
.out_value
= ir_test
;
1132 field
.out_mask
= NULL
;
1133 field
.in_value
= ir_test
;
1134 field
.in_check_value
= NULL
;
1135 field
.in_check_mask
= NULL
;
1136 field
.in_handler
= NULL
;
1137 field
.in_handler_priv
= NULL
;
1139 jtag_add_plain_ir_scan(1, &field
, TAP_TLR
);
1140 jtag_execute_queue();
1142 device
= jtag_devices
;
1145 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x1)
1147 char *cbuf
= buf_to_char(ir_test
, total_ir_length
);
1148 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned %s", cbuf
);
1152 chain_pos
+= device
->ir_length
;
1153 device
= device
->next
;
1156 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x3)
1158 char *cbuf
= buf_to_char(ir_test
, total_ir_length
);
1159 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned %s", cbuf
);
1169 int jtag_register_commands(struct command_context_s
*cmd_ctx
)
1171 register_command(cmd_ctx
, NULL
, "interface", handle_interface_command
,
1172 COMMAND_CONFIG
, NULL
);
1173 register_command(cmd_ctx
, NULL
, "jtag_speed", handle_jtag_speed_command
,
1174 COMMAND_ANY
, "set jtag speed (if supported) <speed>");
1175 register_command(cmd_ctx
, NULL
, "jtag_device", handle_jtag_device_command
,
1176 COMMAND_CONFIG
, NULL
);
1177 register_command(cmd_ctx
, NULL
, "reset_config", handle_reset_config_command
,
1178 COMMAND_CONFIG
, NULL
);
1179 register_command(cmd_ctx
, NULL
, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command
,
1180 COMMAND_CONFIG
, NULL
);
1181 register_command(cmd_ctx
, NULL
, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command
,
1182 COMMAND_CONFIG
, NULL
);
1184 register_command(cmd_ctx
, NULL
, "scan_chain", handle_scan_chain_command
,
1185 COMMAND_EXEC
, "print current scan chain configuration");
1187 register_command(cmd_ctx
, NULL
, "endstate", handle_endstate_command
,
1188 COMMAND_EXEC
, "finish JTAG operations in <tap_state>");
1189 register_command(cmd_ctx
, NULL
, "jtag_reset", handle_jtag_reset_command
,
1190 COMMAND_EXEC
, "toggle reset lines <trst> <srst>");
1191 register_command(cmd_ctx
, NULL
, "runtest", handle_runtest_command
,
1192 COMMAND_EXEC
, "move to Run-Test/Idle, and execute <num_cycles>");
1193 register_command(cmd_ctx
, NULL
, "statemove", handle_statemove_command
,
1194 COMMAND_EXEC
, "move to current endstate or [tap_state]");
1195 register_command(cmd_ctx
, NULL
, "irscan", handle_irscan_command
,
1196 COMMAND_EXEC
, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1197 register_command(cmd_ctx
, NULL
, "drscan", handle_drscan_command
,
1198 COMMAND_EXEC
, "execute DR scan <device> <var> [dev2] [var2] ...");
1200 register_command(cmd_ctx
, NULL
, "verify_ircapture", handle_verify_ircapture_command
,
1201 COMMAND_ANY
, "verify value captured during Capture-IR <enable|disable>");
1205 int jtag_init(struct command_context_s
*cmd_ctx
)
1211 if (jtag_speed
== -1)
1214 if (jtag_interface
&& (jtag_interface
[0] != 0))
1215 /* configuration var 'jtag_interface' is set, and not empty */
1216 for (i
= 0; jtag_interfaces
[i
]; i
++)
1218 if (strcmp(jtag_interface
, jtag_interfaces
[i
]->name
) == 0)
1220 jtag_device_t
*device
;
1221 device
= jtag_devices
;
1223 if (jtag_interfaces
[i
]->init() != ERROR_OK
)
1224 return ERROR_JTAG_INIT_FAILED
;
1225 jtag
= jtag_interfaces
[i
];
1227 jtag_ir_scan_size
= 0;
1228 jtag_num_devices
= 0;
1229 while (device
!= NULL
)
1231 jtag_ir_scan_size
+= device
->ir_length
;
1233 device
= device
->next
;
1236 jtag_add_statemove(TAP_TLR
);
1237 jtag_execute_queue();
1239 jtag_validate_chain();
1245 /* no valid interface was found (i.e. the configuration option,
1246 * didn't match one of the compiled-in interfaces
1248 ERROR("No valid jtag interface found (%s)", jtag_interface
);
1249 ERROR("compiled-in jtag interfaces:");
1250 for (i
= 0; jtag_interfaces
[i
]; i
++)
1252 ERROR("%i: %s", i
, jtag_interfaces
[i
]->name
);
1256 return ERROR_JTAG_INVALID_INTERFACE
;
1259 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1263 /* only if the configuration var isn't overwritten from cmdline */
1264 if (!jtag_interface
)
1266 if (args
[0] && (args
[0][0] != 0))
1268 for (i
=0; jtag_interfaces
[i
]; i
++)
1270 if (strcmp(args
[0], jtag_interfaces
[i
]->name
) == 0)
1272 if (jtag_interfaces
[i
]->register_commands(cmd_ctx
) != ERROR_OK
)
1275 jtag_interface
= jtag_interfaces
[i
]->name
;
1282 /* remember the requested interface name, so we can complain about it later */
1283 jtag_interface
= strdup(args
[0]);
1284 DEBUG("'interface' command didn't specify a valid interface");
1290 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1292 jtag_device_t
**last_device_p
= &jtag_devices
;
1296 while ((*last_device_p
)->next
)
1297 last_device_p
= &((*last_device_p
)->next
);
1298 last_device_p
= &((*last_device_p
)->next
);
1304 *last_device_p
= malloc(sizeof(jtag_device_t
));
1305 (*last_device_p
)->ir_length
= strtoul(args
[0], NULL
, 0);
1307 (*last_device_p
)->expected
= malloc((*last_device_p
)->ir_length
);
1308 buf_set_u32((*last_device_p
)->expected
, 0, (*last_device_p
)->ir_length
, strtoul(args
[1], NULL
, 0));
1309 (*last_device_p
)->expected_mask
= malloc((*last_device_p
)->ir_length
);
1310 buf_set_u32((*last_device_p
)->expected_mask
, 0, (*last_device_p
)->ir_length
, strtoul(args
[2], NULL
, 0));
1312 (*last_device_p
)->cur_instr
= malloc((*last_device_p
)->ir_length
);
1313 (*last_device_p
)->bypass
= 1;
1314 buf_set_ones((*last_device_p
)->cur_instr
, (*last_device_p
)->ir_length
);
1316 (*last_device_p
)->next
= NULL
;
1318 jtag_register_event_callback(jtag_reset_callback
, (*last_device_p
));
1325 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1327 jtag_device_t
*device
= jtag_devices
;
1328 int device_count
= 0;
1332 u32 expected
, expected_mask
, cur_instr
;
1333 expected
= buf_get_u32(device
->expected
, 0, device
->ir_length
);
1334 expected_mask
= buf_get_u32(device
->expected_mask
, 0, device
->ir_length
);
1335 cur_instr
= buf_get_u32(device
->cur_instr
, 0, device
->ir_length
);
1336 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
);
1337 device
= device
->next
;
1344 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1348 if (strcmp(args
[0], "none") == 0)
1349 jtag_reset_config
= RESET_NONE
;
1350 else if (strcmp(args
[0], "trst_only") == 0)
1351 jtag_reset_config
= RESET_HAS_TRST
;
1352 else if (strcmp(args
[0], "srst_only") == 0)
1353 jtag_reset_config
= RESET_HAS_SRST
;
1354 else if (strcmp(args
[0], "trst_and_srst") == 0)
1355 jtag_reset_config
= RESET_TRST_AND_SRST
;
1358 ERROR("invalid reset_config argument");
1365 if (strcmp(args
[1], "srst_pulls_trst") == 0)
1366 jtag_reset_config
|= RESET_SRST_PULLS_TRST
;
1367 else if (strcmp(args
[1], "trst_pulls_srst") == 0)
1368 jtag_reset_config
|= RESET_TRST_PULLS_SRST
;
1369 else if (strcmp(args
[1], "combined") == 0)
1370 jtag_reset_config
|= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
1371 else if (strcmp(args
[1], "separate") == 0)
1372 jtag_reset_config
&= ~(RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
);
1375 ERROR("invalid reset_config argument");
1382 if (strcmp(args
[2], "trst_open_drain") == 0)
1383 jtag_reset_config
|= RESET_TRST_OPEN_DRAIN
;
1384 else if (strcmp(args
[2], "trst_push_pull") == 0)
1385 jtag_reset_config
&= ~RESET_TRST_OPEN_DRAIN
;
1388 ERROR("invalid reset_config argument");
1395 if (strcmp(args
[3], "srst_push_pull") == 0)
1396 jtag_reset_config
|= RESET_SRST_PUSH_PULL
;
1397 else if (strcmp(args
[3], "srst_open_drain") == 0)
1398 jtag_reset_config
&= ~RESET_SRST_PUSH_PULL
;
1401 ERROR("invalid reset_config argument");
1409 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1413 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1418 jtag_nsrst_delay
= strtoul(args
[0], NULL
, 0);
1424 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1428 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1433 jtag_ntrst_delay
= strtoul(args
[0], NULL
, 0);
1439 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1442 command_print(cmd_ctx
, "jtag_speed: %i", jtag_speed
);
1446 /* this command can be called during CONFIG,
1447 * in which case jtag isn't initialized */
1449 jtag
->speed(strtoul(args
[0], NULL
, 0));
1451 jtag_speed
= strtoul(args
[0], NULL
, 0);
1457 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1459 enum tap_state state
;
1463 command_print(cmd_ctx
, "usage: endstate <tap_state>");
1467 for (state
= 0; state
< 16; state
++)
1469 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1471 jtag_add_end_state(state
);
1472 jtag_execute_queue();
1479 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1483 char *usage
= "usage: jtag_reset <trst> <srst>";
1488 command_print(cmd_ctx
, usage
);
1492 if (args
[0][0] == '1')
1494 else if (args
[0][0] == '0')
1498 command_print(cmd_ctx
, usage
);
1502 if (args
[1][0] == '1')
1504 else if (args
[1][0] == '0')
1508 command_print(cmd_ctx
, usage
);
1512 if ((retval
= jtag_add_reset(trst
, srst
)) != ERROR_OK
)
1516 case ERROR_JTAG_RESET_WOULD_ASSERT_TRST
:
1517 command_print(cmd_ctx
, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args
[1][0]);
1519 case ERROR_JTAG_RESET_CANT_SRST
:
1520 command_print(cmd_ctx
, "can't assert srst because the current reset_config doesn't support it");
1523 command_print(cmd_ctx
, "unknown error");
1526 jtag_execute_queue();
1531 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1535 command_print(cmd_ctx
, "usage: runtest <num_cycles>");
1539 jtag_add_runtest(strtol(args
[0], NULL
, 0), -1);
1540 jtag_execute_queue();
1546 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1548 enum tap_state state
;
1553 for (state
= 0; state
< 16; state
++)
1555 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1562 jtag_add_statemove(state
);
1563 jtag_execute_queue();
1569 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1572 scan_field_t
*fields
;
1574 if ((argc
< 2) || (argc
% 2))
1576 command_print(cmd_ctx
, "usage: irscan <device> <instr> [dev2] [instr2] ...");
1580 fields
= malloc(sizeof(scan_field_t
) * argc
/ 2);
1582 for (i
= 0; i
< argc
/ 2; i
++)
1584 int device
= strtoul(args
[i
*2], NULL
, 0);
1585 int field_size
= jtag_get_device(device
)->ir_length
;
1586 fields
[i
].device
= device
;
1587 fields
[i
].out_value
= malloc(CEIL(field_size
, 8));
1588 buf_set_u32(fields
[i
].out_value
, 0, field_size
, strtoul(args
[i
*2+1], NULL
, 0));
1589 fields
[i
].out_mask
= NULL
;
1590 fields
[i
].in_value
= NULL
;
1591 fields
[i
].in_check_mask
= NULL
;
1592 fields
[i
].in_handler
= NULL
;
1593 fields
[i
].in_handler_priv
= NULL
;
1596 jtag_add_ir_scan(argc
/ 2, fields
, -1);
1597 jtag_execute_queue();
1599 for (i
= 0; i
< argc
/ 2; i
++)
1600 free(fields
[i
].out_value
);
1607 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1609 scan_field_t
*fields
;
1611 int field_count
= 0;
1615 if ((argc
< 2) || (argc
% 2))
1617 command_print(cmd_ctx
, "usage: drscan <device> <var> [dev2] [var2]");
1621 for (i
= 0; i
< argc
; i
+=2)
1623 var
= get_var_by_namenum(args
[i
+1]);
1626 num_fields
+= var
->num_fields
;
1630 command_print(cmd_ctx
, "variable %s doesn't exist", args
[i
+1]);
1635 fields
= malloc(sizeof(scan_field_t
) * num_fields
);
1637 for (i
= 0; i
< argc
; i
+=2)
1639 var
= get_var_by_namenum(args
[i
+1]);
1641 for (j
= 0; j
< var
->num_fields
; j
++)
1643 fields
[field_count
].device
= strtol(args
[i
], NULL
, 0);
1644 fields
[field_count
].num_bits
= var
->fields
[j
].num_bits
;
1645 fields
[field_count
].out_value
= malloc(CEIL(var
->fields
[j
].num_bits
, 8));
1646 buf_set_u32(fields
[field_count
].out_value
, 0, var
->fields
[j
].num_bits
, var
->fields
[j
].value
);
1647 fields
[field_count
].out_mask
= NULL
;
1648 fields
[field_count
].in_value
= fields
[field_count
].out_value
;
1649 fields
[field_count
].in_check_mask
= NULL
;
1650 fields
[field_count
].in_check_value
= NULL
;
1651 fields
[field_count
].in_handler
= field_le_to_host
;
1652 fields
[field_count
++].in_handler_priv
= &(var
->fields
[j
]);
1656 jtag_add_dr_scan(num_fields
, fields
, -1);
1657 jtag_execute_queue();
1659 for (i
= 0; i
< argc
/ 2; i
++)
1660 free(fields
[i
].out_value
);
1667 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1671 command_print(cmd_ctx
, "verify Capture-IR is %s", (jtag_verify_capture_ir
) ? "enabled": "disabled");
1675 if (strcmp(args
[0], "enable") == 0)
1677 jtag_verify_capture_ir
= 1;
1679 else if (strcmp(args
[0], "disable") == 0)
1681 jtag_verify_capture_ir
= 0;
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