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 /* maximum number of JTAG devices expected in the chain
120 #define JTAG_MAX_CHAIN_SIZE 20
122 /* callbacks to inform high-level handlers about JTAG state changes */
123 jtag_event_callback_t
*jtag_event_callbacks
;
125 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
127 #if BUILD_PARPORT == 1
128 extern jtag_interface_t parport_interface
;
131 #if BUILD_FT2232_FTD2XX == 1
132 extern jtag_interface_t ft2232_interface
;
135 #if BUILD_FT2232_LIBFTDI == 1
136 extern jtag_interface_t ft2232_interface
;
139 #if BUILD_AMTJTAGACCEL == 1
140 extern jtag_interface_t amt_jtagaccel_interface
;
143 #if BUILD_EP93XX == 1
144 extern jtag_interface_t ep93xx_interface
;
147 #if BUILD_AT91RM9200 == 1
148 extern jtag_interface_t at91rm9200_interface
;
151 #if BUILD_GW16012 == 1
152 extern jtag_interface_t gw16012_interface
;
155 jtag_interface_t
*jtag_interfaces
[] = {
156 #if BUILD_PARPORT == 1
159 #if BUILD_FT2232_FTD2XX == 1
162 #if BUILD_FT2232_LIBFTDI == 1
165 #if BUILD_AMTJTAGACCEL == 1
166 &amt_jtagaccel_interface
,
168 #if BUILD_EP93XX == 1
171 #if BUILD_AT91RM9200 == 1
172 &at91rm9200_interface
,
174 #if BUILD_GW16012 == 1
180 jtag_interface_t
*jtag
= NULL
;
183 char* jtag_interface
= NULL
;
186 /* forward declarations */
189 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
190 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
191 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
192 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
193 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
194 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
196 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
198 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
199 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
200 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
201 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
202 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
203 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
205 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
207 int jtag_register_event_callback(int (*callback
)(enum jtag_event event
, void *priv
), void *priv
)
209 jtag_event_callback_t
**callbacks_p
= &jtag_event_callbacks
;
211 if (callback
== NULL
)
213 return ERROR_INVALID_ARGUMENTS
;
218 while ((*callbacks_p
)->next
)
219 callbacks_p
= &((*callbacks_p
)->next
);
220 callbacks_p
= &((*callbacks_p
)->next
);
223 (*callbacks_p
) = malloc(sizeof(jtag_event_callback_t
));
224 (*callbacks_p
)->callback
= callback
;
225 (*callbacks_p
)->priv
= priv
;
226 (*callbacks_p
)->next
= NULL
;
231 int jtag_unregister_event_callback(int (*callback
)(enum jtag_event event
, void *priv
))
233 jtag_event_callback_t
**callbacks_p
= &jtag_event_callbacks
;
235 if (callback
== NULL
)
237 return ERROR_INVALID_ARGUMENTS
;
242 jtag_event_callback_t
**next
= &((*callbacks_p
)->next
);
243 if ((*callbacks_p
)->callback
== callback
)
246 *callbacks_p
= *next
;
254 int jtag_call_event_callbacks(enum jtag_event event
)
256 jtag_event_callback_t
*callback
= jtag_event_callbacks
;
258 DEBUG("jtag event: %i", event
);
262 callback
->callback(event
, callback
->priv
);
263 callback
= callback
->next
;
269 /* returns a pointer to the pointer of the last command in queue
270 * this may be a pointer to the root pointer (jtag_command_queue)
271 * or to the next member of the last but one command
273 jtag_command_t
** jtag_get_last_command_p(void)
275 /* jtag_command_t *cmd = jtag_command_queue;
281 return &jtag_command_queue;
285 return last_comand_pointer
;
288 /* returns a pointer to the n-th device in the scan chain */
289 jtag_device_t
* jtag_get_device(int num
)
291 jtag_device_t
*device
= jtag_devices
;
298 device
= device
->next
;
305 void* cmd_queue_alloc(size_t size
)
307 cmd_queue_page_t
**p_page
= &cmd_queue_pages
;
312 while ((*p_page
)->next
)
313 p_page
= &((*p_page
)->next
);
314 if (CMD_QUEUE_PAGE_SIZE
- (*p_page
)->used
< size
)
315 p_page
= &((*p_page
)->next
);
320 *p_page
= malloc(sizeof(cmd_queue_page_t
));
322 (*p_page
)->address
= malloc(CMD_QUEUE_PAGE_SIZE
);
323 (*p_page
)->next
= NULL
;
326 offset
= (*p_page
)->used
;
327 (*p_page
)->used
+= size
;
329 return ((*p_page
)->address
) + offset
;
332 void cmd_queue_free()
334 cmd_queue_page_t
*page
= cmd_queue_pages
;
338 cmd_queue_page_t
*last
= page
;
344 cmd_queue_pages
= NULL
;
347 int jtag_add_ir_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
349 jtag_command_t
**last_cmd
;
350 jtag_device_t
*device
;
353 /* int changed = 0; */
357 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
358 return ERROR_JTAG_TRST_ASSERTED
;
362 for (i=0; i<num_fields; i++)
364 device = jtag_get_device(fields[i].device);
367 if (buf_cmp(device->cur_instr, fields[i].out_value, device->ir_length))
372 ERROR("inexistant device specified for ir scan");
373 return ERROR_INVALID_ARGUMENTS;
381 last_cmd
= jtag_get_last_command_p();
383 /* allocate memory for a new list member */
384 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
385 (*last_cmd
)->next
= NULL
;
386 last_comand_pointer
= &((*last_cmd
)->next
);
387 (*last_cmd
)->type
= JTAG_SCAN
;
389 /* allocate memory for ir scan command */
390 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
391 (*last_cmd
)->cmd
.scan
->ir_scan
= 1;
392 (*last_cmd
)->cmd
.scan
->num_fields
= jtag_num_devices
; /* one field per device */
393 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(jtag_num_devices
* sizeof(scan_field_t
));
394 (*last_cmd
)->cmd
.scan
->end_state
= state
;
397 cmd_queue_end_state
= state
;
399 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
400 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
402 if (cmd_queue_end_state
== TAP_TLR
)
403 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
405 cmd_queue_cur_state
= cmd_queue_end_state
;
407 for (i
=0; i
< jtag_num_devices
; i
++)
410 device
= jtag_get_device(i
);
411 scan_size
= device
->ir_length
;
412 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= i
;
413 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= scan_size
;
414 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= NULL
;
415 if (jtag_verify_capture_ir
)
417 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= buf_cpy(device
->expected
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
418 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= buf_cpy(device
->expected_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
422 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= NULL
;
423 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= NULL
;
425 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= NULL
;
426 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= NULL
;
428 /* search the list */
429 for (j
=0; j
< num_fields
; j
++)
431 if (i
== fields
[j
].device
)
434 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[j
].out_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
435 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[j
].out_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
444 /* if a device isn't listed, set it to BYPASS */
445 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_set_ones(cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
446 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= NULL
;
451 /* update device information */
452 buf_cpy((*last_cmd
)->cmd
.scan
->fields
[i
].out_value
, jtag_get_device(i
)->cur_instr
, scan_size
);
458 int jtag_add_plain_ir_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
460 jtag_command_t
**last_cmd
;
465 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
466 return ERROR_JTAG_TRST_ASSERTED
;
469 last_cmd
= jtag_get_last_command_p();
471 /* allocate memory for a new list member */
472 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
473 (*last_cmd
)->next
= NULL
;
474 last_comand_pointer
= &((*last_cmd
)->next
);
475 (*last_cmd
)->type
= JTAG_SCAN
;
477 /* allocate memory for ir scan command */
478 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
479 (*last_cmd
)->cmd
.scan
->ir_scan
= 1;
480 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
481 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
482 (*last_cmd
)->cmd
.scan
->end_state
= state
;
485 cmd_queue_end_state
= state
;
487 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
488 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
490 if (cmd_queue_end_state
== TAP_TLR
)
491 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
493 cmd_queue_cur_state
= cmd_queue_end_state
;
495 for (i
= 0; i
< num_fields
; i
++)
497 int num_bits
= fields
[i
].num_bits
;
498 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
499 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
500 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
501 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
502 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
503 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
504 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= buf_cpy(fields
[i
].in_check_value
, cmd_queue_alloc(num_bytes
), num_bits
);
505 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= buf_cpy(fields
[i
].in_check_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
506 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= NULL
;
507 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= NULL
;
512 int jtag_add_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
515 int bypass_devices
= 0;
517 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
518 jtag_device_t
*device
= jtag_devices
;
523 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
524 return ERROR_JTAG_TRST_ASSERTED
;
527 /* count devices in bypass */
532 device
= device
->next
;
535 /* allocate memory for a new list member */
536 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
537 last_comand_pointer
= &((*last_cmd
)->next
);
538 (*last_cmd
)->next
= NULL
;
539 (*last_cmd
)->type
= JTAG_SCAN
;
541 /* allocate memory for dr scan command */
542 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
543 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
544 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
+ bypass_devices
;
545 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc((num_fields
+ bypass_devices
) * sizeof(scan_field_t
));
546 (*last_cmd
)->cmd
.scan
->end_state
= state
;
549 cmd_queue_end_state
= state
;
551 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
552 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
554 if (cmd_queue_end_state
== TAP_TLR
)
555 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
557 cmd_queue_cur_state
= cmd_queue_end_state
;
559 for (i
=0; i
< jtag_num_devices
; i
++)
562 (*last_cmd
)->cmd
.scan
->fields
[field_count
].device
= i
;
564 for (j
=0; j
< num_fields
; j
++)
566 if (i
== fields
[j
].device
)
569 scan_size
= fields
[j
].num_bits
;
570 (*last_cmd
)->cmd
.scan
->fields
[field_count
].num_bits
= scan_size
;
571 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_value
= buf_cpy(fields
[j
].out_value
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
572 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_mask
= buf_cpy(fields
[j
].out_mask
, cmd_queue_alloc(CEIL(scan_size
, 8)), scan_size
);
573 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_value
= fields
[j
].in_value
;
574 (*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
);
575 (*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
);
576 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_handler
= fields
[j
].in_handler
;
577 (*last_cmd
)->cmd
.scan
->fields
[field_count
++].in_handler_priv
= fields
[j
].in_handler_priv
;
582 /* if a device isn't listed, the BYPASS register should be selected */
583 if (!jtag_get_device(i
)->bypass
)
585 ERROR("BUG: no scan data for a device not in BYPASS");
589 /* program the scan field to 1 bit length, and ignore it's value */
590 (*last_cmd
)->cmd
.scan
->fields
[field_count
].num_bits
= 1;
591 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_value
= NULL
;
592 (*last_cmd
)->cmd
.scan
->fields
[field_count
].out_mask
= NULL
;
593 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_value
= NULL
;
594 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_value
= NULL
;
595 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_check_mask
= NULL
;
596 (*last_cmd
)->cmd
.scan
->fields
[field_count
].in_handler
= NULL
;
597 (*last_cmd
)->cmd
.scan
->fields
[field_count
++].in_handler_priv
= NULL
;
601 /* if a device is listed, the BYPASS register must not be selected */
602 if (jtag_get_device(i
)->bypass
)
604 WARNING("scan data for a device in BYPASS");
611 int jtag_add_plain_dr_scan(int num_fields
, scan_field_t
*fields
, enum tap_state state
)
614 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
618 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
619 return ERROR_JTAG_TRST_ASSERTED
;
622 /* allocate memory for a new list member */
623 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
624 last_comand_pointer
= &((*last_cmd
)->next
);
625 (*last_cmd
)->next
= NULL
;
626 (*last_cmd
)->type
= JTAG_SCAN
;
628 /* allocate memory for scan command */
629 (*last_cmd
)->cmd
.scan
= cmd_queue_alloc(sizeof(scan_command_t
));
630 (*last_cmd
)->cmd
.scan
->ir_scan
= 0;
631 (*last_cmd
)->cmd
.scan
->num_fields
= num_fields
;
632 (*last_cmd
)->cmd
.scan
->fields
= cmd_queue_alloc(num_fields
* sizeof(scan_field_t
));
633 (*last_cmd
)->cmd
.scan
->end_state
= state
;
636 cmd_queue_end_state
= state
;
638 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
639 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
641 if (cmd_queue_end_state
== TAP_TLR
)
642 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
644 cmd_queue_cur_state
= cmd_queue_end_state
;
646 for (i
= 0; i
< num_fields
; i
++)
648 int num_bits
= fields
[i
].num_bits
;
649 int num_bytes
= CEIL(fields
[i
].num_bits
, 8);
650 (*last_cmd
)->cmd
.scan
->fields
[i
].device
= fields
[i
].device
;
651 (*last_cmd
)->cmd
.scan
->fields
[i
].num_bits
= num_bits
;
652 (*last_cmd
)->cmd
.scan
->fields
[i
].out_value
= buf_cpy(fields
[i
].out_value
, cmd_queue_alloc(num_bytes
), num_bits
);
653 (*last_cmd
)->cmd
.scan
->fields
[i
].out_mask
= buf_cpy(fields
[i
].out_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
654 (*last_cmd
)->cmd
.scan
->fields
[i
].in_value
= fields
[i
].in_value
;
655 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_value
= buf_cpy(fields
[i
].in_check_value
, cmd_queue_alloc(num_bytes
), num_bits
);
656 (*last_cmd
)->cmd
.scan
->fields
[i
].in_check_mask
= buf_cpy(fields
[i
].in_check_mask
, cmd_queue_alloc(num_bytes
), num_bits
);
657 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler
= fields
[i
].in_handler
;
658 (*last_cmd
)->cmd
.scan
->fields
[i
].in_handler_priv
= fields
[i
].in_handler_priv
;
663 int jtag_add_statemove(enum tap_state state
)
665 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
669 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
670 return ERROR_JTAG_TRST_ASSERTED
;
673 /* allocate memory for a new list member */
674 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
675 last_comand_pointer
= &((*last_cmd
)->next
);
676 (*last_cmd
)->next
= NULL
;
677 (*last_cmd
)->type
= JTAG_STATEMOVE
;
679 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
680 (*last_cmd
)->cmd
.statemove
->end_state
= state
;
683 cmd_queue_end_state
= state
;
685 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
686 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
688 if (cmd_queue_end_state
== TAP_TLR
)
689 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
691 cmd_queue_cur_state
= cmd_queue_end_state
;
696 int jtag_add_pathmove(int num_states
, enum tap_state
*path
)
698 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
703 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
704 return ERROR_JTAG_TRST_ASSERTED
;
707 /* the last state has to be a stable state */
708 if (tap_move_map
[path
[num_states
- 1]] == -1)
710 ERROR("TAP path doesn't finish in a stable state");
711 return ERROR_JTAG_NOT_IMPLEMENTED
;
714 if (jtag
->support_pathmove
)
716 /* allocate memory for a new list member */
717 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
718 last_comand_pointer
= &((*last_cmd
)->next
);
719 (*last_cmd
)->next
= NULL
;
720 (*last_cmd
)->type
= JTAG_PATHMOVE
;
722 (*last_cmd
)->cmd
.pathmove
= cmd_queue_alloc(sizeof(pathmove_command_t
));
723 (*last_cmd
)->cmd
.pathmove
->num_states
= num_states
;
724 (*last_cmd
)->cmd
.pathmove
->path
= cmd_queue_alloc(sizeof(enum tap_state
) * num_states
);
726 for (i
= 0; i
< num_states
; i
++)
727 (*last_cmd
)->cmd
.pathmove
->path
[i
] = path
[i
];
731 /* validate the desired path, and see if it fits a default path */
736 for (i
= 0; i
< num_states
; i
++)
738 for (j
= i
; j
< num_states
; j
++)
740 if (tap_move_map
[path
[j
]] != -1)
747 if (begin
- end
<= 7) /* a default path spans no more than 7 states */
749 jtag_add_statemove(path
[end
]);
753 ERROR("encountered a TAP path that can't be fulfilled by default paths");
754 return ERROR_JTAG_NOT_IMPLEMENTED
;
761 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
762 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
764 if (cmd_queue_end_state
== TAP_TLR
)
765 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
767 cmd_queue_cur_state
= path
[num_states
- 1];
772 int jtag_add_runtest(int num_cycles
, enum tap_state state
)
774 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
778 WARNING("JTAG command queued, while TRST is low (TAP in reset)");
779 return ERROR_JTAG_TRST_ASSERTED
;
782 /* allocate memory for a new list member */
783 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
784 (*last_cmd
)->next
= NULL
;
785 last_comand_pointer
= &((*last_cmd
)->next
);
786 (*last_cmd
)->type
= JTAG_RUNTEST
;
788 (*last_cmd
)->cmd
.runtest
= cmd_queue_alloc(sizeof(runtest_command_t
));
789 (*last_cmd
)->cmd
.runtest
->num_cycles
= num_cycles
;
790 (*last_cmd
)->cmd
.runtest
->end_state
= state
;
793 cmd_queue_end_state
= state
;
795 if (cmd_queue_cur_state
== TAP_TLR
&& cmd_queue_end_state
!= TAP_TLR
)
796 jtag_call_event_callbacks(JTAG_TRST_RELEASED
);
798 if (cmd_queue_end_state
== TAP_TLR
)
799 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
801 cmd_queue_cur_state
= cmd_queue_end_state
;
806 int jtag_add_reset(int req_trst
, int req_srst
)
808 int trst_with_tms
= 0;
810 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
813 req_trst
= jtag_trst
;
816 req_srst
= jtag_srst
;
818 /* Make sure that jtag_reset_config allows the requested reset */
819 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
820 if (((jtag_reset_config
& RESET_SRST_PULLS_TRST
) && (req_srst
== 1)) && (req_trst
== 0))
821 return ERROR_JTAG_RESET_WOULD_ASSERT_TRST
;
823 /* if TRST pulls SRST, we reset with TAP T-L-R */
824 if (((jtag_reset_config
& RESET_TRST_PULLS_SRST
) && (req_trst
== 1)) && (req_srst
== 0))
830 if (req_srst
&& !(jtag_reset_config
& RESET_HAS_SRST
))
832 ERROR("requested nSRST assertion, but the current configuration doesn't support this");
833 return ERROR_JTAG_RESET_CANT_SRST
;
836 if (req_trst
&& !(jtag_reset_config
& RESET_HAS_TRST
))
842 /* allocate memory for a new list member */
843 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
844 (*last_cmd
)->next
= NULL
;
845 last_comand_pointer
= &((*last_cmd
)->next
);
846 (*last_cmd
)->type
= JTAG_RESET
;
848 (*last_cmd
)->cmd
.reset
= cmd_queue_alloc(sizeof(reset_command_t
));
849 (*last_cmd
)->cmd
.reset
->trst
= req_trst
;
850 (*last_cmd
)->cmd
.reset
->srst
= req_srst
;
852 jtag_trst
= req_trst
;
853 jtag_srst
= req_srst
;
857 jtag_call_event_callbacks(JTAG_SRST_ASSERTED
);
861 jtag_call_event_callbacks(JTAG_SRST_RELEASED
);
862 if (jtag_nsrst_delay
)
863 jtag_add_sleep(jtag_nsrst_delay
* 1000);
868 last_cmd
= &((*last_cmd
)->next
);
870 /* allocate memory for a new list member */
871 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
872 (*last_cmd
)->next
= NULL
;
873 last_comand_pointer
= &((*last_cmd
)->next
);
874 (*last_cmd
)->type
= JTAG_STATEMOVE
;
876 (*last_cmd
)->cmd
.statemove
= cmd_queue_alloc(sizeof(statemove_command_t
));
877 (*last_cmd
)->cmd
.statemove
->end_state
= TAP_TLR
;
879 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
880 cmd_queue_cur_state
= TAP_TLR
;
881 cmd_queue_end_state
= TAP_TLR
;
889 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
890 * and inform possible listeners about this
892 cmd_queue_cur_state
= TAP_TLR
;
893 jtag_call_event_callbacks(JTAG_TRST_ASSERTED
);
897 /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
898 * but we might want to add a delay to give the TAP time to settle
900 if (jtag_ntrst_delay
)
901 jtag_add_sleep(jtag_ntrst_delay
* 1000);
908 int jtag_add_end_state(enum tap_state state
)
910 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
912 /* allocate memory for a new list member */
913 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
914 (*last_cmd
)->next
= NULL
;
915 last_comand_pointer
= &((*last_cmd
)->next
);
916 (*last_cmd
)->type
= JTAG_END_STATE
;
918 (*last_cmd
)->cmd
.end_state
= cmd_queue_alloc(sizeof(end_state_command_t
));
919 (*last_cmd
)->cmd
.end_state
->end_state
= state
;
922 cmd_queue_end_state
= state
;
927 int jtag_add_sleep(u32 us
)
929 jtag_command_t
**last_cmd
= jtag_get_last_command_p();
931 /* allocate memory for a new list member */
932 *last_cmd
= cmd_queue_alloc(sizeof(jtag_command_t
));
933 (*last_cmd
)->next
= NULL
;
934 last_comand_pointer
= &((*last_cmd
)->next
);
935 (*last_cmd
)->type
= JTAG_SLEEP
;
937 (*last_cmd
)->cmd
.sleep
= cmd_queue_alloc(sizeof(sleep_command_t
));
938 (*last_cmd
)->cmd
.sleep
->us
= us
;
943 int jtag_scan_size(scan_command_t
*cmd
)
948 /* count bits in scan command */
949 for (i
=0; i
<cmd
->num_fields
; i
++)
951 bit_count
+= cmd
->fields
[i
].num_bits
;
957 int jtag_build_buffer(scan_command_t
*cmd
, u8
**buffer
)
962 bit_count
= jtag_scan_size(cmd
);
963 *buffer
= malloc(CEIL(bit_count
, 8));
967 for (i
= 0; i
< cmd
->num_fields
; i
++)
969 if (cmd
->fields
[i
].out_value
)
971 #ifdef _DEBUG_JTAG_IO_
972 char* char_buf
= buf_to_str(cmd
->fields
[i
].out_value
, (cmd
->fields
[i
].num_bits
> 64) ? 64 : cmd
->fields
[i
].num_bits
, 16);
974 buf_set_buf(cmd
->fields
[i
].out_value
, 0, *buffer
, bit_count
, cmd
->fields
[i
].num_bits
);
975 #ifdef _DEBUG_JTAG_IO_
976 DEBUG("fields[%i].out_value: 0x%s", i
, char_buf
);
981 bit_count
+= cmd
->fields
[i
].num_bits
;
988 int jtag_read_buffer(u8
*buffer
, scan_command_t
*cmd
)
992 int retval
= ERROR_OK
;
994 for (i
=0; i
< cmd
->num_fields
; i
++)
996 /* if neither in_value, in_check_value nor in_handler
997 * are specified we don't have to examine this field
999 if (cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_check_value
|| cmd
->fields
[i
].in_handler
)
1001 int num_bits
= cmd
->fields
[i
].num_bits
;
1002 u8
*captured
= buf_set_buf(buffer
, bit_count
, malloc(CEIL(num_bits
, 8)), 0, num_bits
);
1003 #ifdef _DEBUG_JTAG_IO_
1006 char_buf
= buf_to_str(captured
, (num_bits
> 64) ? 64 : num_bits
, 16);
1007 DEBUG("fields[%i].in_value: 0x%s", i
, char_buf
);
1012 if (cmd
->fields
[i
].in_value
)
1014 buf_cpy(captured
, cmd
->fields
[i
].in_value
, num_bits
);
1016 if (cmd
->fields
[i
].in_handler
)
1018 if (cmd
->fields
[i
].in_handler(cmd
->fields
[i
].in_value
, 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 /* no in_value specified, but a handler takes care of the scanned data */
1028 if (cmd
->fields
[i
].in_handler
&& (!cmd
->fields
[i
].in_value
))
1030 if (cmd
->fields
[i
].in_handler(captured
, cmd
->fields
[i
].in_handler_priv
) != ERROR_OK
)
1032 /* TODO: error reporting */
1033 WARNING("in_handler reported a failed check");
1034 retval
= ERROR_JTAG_QUEUE_FAILED
;
1039 if (cmd
->fields
[i
].in_check_value
)
1041 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
))
1042 || (!cmd
->fields
[i
].in_check_mask
&& buf_cmp(captured
, cmd
->fields
[i
].in_check_mask
, num_bits
)))
1044 char *captured_char
= buf_to_str(captured
, (num_bits
> 64) ? 64 : num_bits
, 16);
1045 char *in_check_value_char
= buf_to_str(cmd
->fields
[i
].in_check_value
, (num_bits
> 64) ? 64 : num_bits
, 16);
1046 char *in_check_mask_char
= buf_to_str(cmd
->fields
[i
].in_check_mask
, (num_bits
> 64) ? 64 : num_bits
, 16);
1047 /* TODO: error reporting */
1048 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
);
1049 retval
= ERROR_JTAG_QUEUE_FAILED
;
1050 free(captured_char
);
1051 free(in_check_value_char
);
1052 free(in_check_mask_char
);
1057 bit_count
+= cmd
->fields
[i
].num_bits
;
1063 enum scan_type
jtag_scan_type(scan_command_t
*cmd
)
1068 for (i
=0; i
< cmd
->num_fields
; i
++)
1070 if (cmd
->fields
[i
].in_check_value
|| cmd
->fields
[i
].in_value
|| cmd
->fields
[i
].in_handler
)
1072 if (cmd
->fields
[i
].out_value
)
1079 int jtag_execute_queue(void)
1083 retval
= jtag
->execute_queue();
1087 jtag_command_queue
= NULL
;
1088 last_comand_pointer
= &jtag_command_queue
;
1093 int jtag_cancel_queue(void)
1096 jtag_command_queue
= NULL
;
1097 last_comand_pointer
= &jtag_command_queue
;
1102 int jtag_reset_callback(enum jtag_event event
, void *priv
)
1104 jtag_device_t
*device
= priv
;
1108 if (event
== JTAG_TRST_ASSERTED
)
1110 buf_set_ones(device
->cur_instr
, device
->ir_length
);
1117 void jtag_sleep(u32 us
)
1122 /* Try to examine chain layout according to IEEE 1149.1 §12
1124 int jtag_examine_chain()
1127 u8 idcode_buffer
[JTAG_MAX_CHAIN_SIZE
* 4];
1130 int device_count
= 0;
1134 field
.num_bits
= sizeof(idcode_buffer
) * 8;
1135 field
.out_value
= idcode_buffer
;
1136 field
.out_mask
= NULL
;
1137 field
.in_value
= idcode_buffer
;
1138 field
.in_check_value
= NULL
;
1139 field
.in_check_mask
= NULL
;
1140 field
.in_handler
= NULL
;
1141 field
.in_handler_priv
= NULL
;
1143 for (i
= 0; i
< JTAG_MAX_CHAIN_SIZE
; i
++)
1145 buf_set_u32(idcode_buffer
, 0, 32, 0x000000FF);
1148 jtag_add_plain_dr_scan(1, &field
, TAP_TLR
);
1149 jtag_execute_queue();
1151 for (i
= 0; i
< JTAG_MAX_CHAIN_SIZE
* 4; i
++)
1153 valid
|= idcode_buffer
[i
];
1156 /* if there wasn't a single non-zero bit, the scan isn't valid */
1159 ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1163 for (bit_count
= 0; bit_count
< (JTAG_MAX_CHAIN_SIZE
* 32) - 31;)
1165 u32 idcode
= buf_get_u32(idcode_buffer
, bit_count
, 32);
1166 if ((idcode
& 1) == 0)
1168 /* LSB must not be 0, this indicates a device in bypass */
1179 if (idcode
== 0x000000FF)
1181 /* End of chain (invalid manufacturer ID) */
1187 manufacturer
= (idcode
& 0xffe) >> 1;
1188 part
= (idcode
& 0xffff000) >> 12;
1189 version
= (idcode
& 0xf0000000) >> 28;
1191 DEBUG("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x",
1192 idcode
, manufacturer
, part
, version
);
1198 /* see if number of discovered devices matches configuration */
1199 if (device_count
!= jtag_num_devices
)
1201 ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
1202 device_count
, jtag_num_devices
);
1209 int jtag_validate_chain()
1211 jtag_device_t
*device
= jtag_devices
;
1212 int total_ir_length
= 0;
1219 total_ir_length
+= device
->ir_length
;
1220 device
= device
->next
;
1223 total_ir_length
+= 2;
1224 ir_test
= malloc(CEIL(total_ir_length
, 8));
1225 buf_set_ones(ir_test
, total_ir_length
);
1228 field
.num_bits
= total_ir_length
;
1229 field
.out_value
= ir_test
;
1230 field
.out_mask
= NULL
;
1231 field
.in_value
= ir_test
;
1232 field
.in_check_value
= NULL
;
1233 field
.in_check_mask
= NULL
;
1234 field
.in_handler
= NULL
;
1235 field
.in_handler_priv
= NULL
;
1237 jtag_add_plain_ir_scan(1, &field
, TAP_TLR
);
1238 jtag_execute_queue();
1240 device
= jtag_devices
;
1243 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x1)
1245 char *cbuf
= buf_to_str(ir_test
, total_ir_length
, 16);
1246 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf
);
1250 chain_pos
+= device
->ir_length
;
1251 device
= device
->next
;
1254 if (buf_get_u32(ir_test
, chain_pos
, 2) != 0x3)
1256 char *cbuf
= buf_to_str(ir_test
, total_ir_length
, 16);
1257 ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf
);
1267 int jtag_register_commands(struct command_context_s
*cmd_ctx
)
1269 register_command(cmd_ctx
, NULL
, "interface", handle_interface_command
,
1270 COMMAND_CONFIG
, NULL
);
1271 register_command(cmd_ctx
, NULL
, "jtag_speed", handle_jtag_speed_command
,
1272 COMMAND_ANY
, "set jtag speed (if supported) <speed>");
1273 register_command(cmd_ctx
, NULL
, "jtag_device", handle_jtag_device_command
,
1274 COMMAND_CONFIG
, NULL
);
1275 register_command(cmd_ctx
, NULL
, "reset_config", handle_reset_config_command
,
1276 COMMAND_CONFIG
, NULL
);
1277 register_command(cmd_ctx
, NULL
, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command
,
1278 COMMAND_CONFIG
, NULL
);
1279 register_command(cmd_ctx
, NULL
, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command
,
1280 COMMAND_CONFIG
, NULL
);
1282 register_command(cmd_ctx
, NULL
, "scan_chain", handle_scan_chain_command
,
1283 COMMAND_EXEC
, "print current scan chain configuration");
1285 register_command(cmd_ctx
, NULL
, "endstate", handle_endstate_command
,
1286 COMMAND_EXEC
, "finish JTAG operations in <tap_state>");
1287 register_command(cmd_ctx
, NULL
, "jtag_reset", handle_jtag_reset_command
,
1288 COMMAND_EXEC
, "toggle reset lines <trst> <srst>");
1289 register_command(cmd_ctx
, NULL
, "runtest", handle_runtest_command
,
1290 COMMAND_EXEC
, "move to Run-Test/Idle, and execute <num_cycles>");
1291 register_command(cmd_ctx
, NULL
, "statemove", handle_statemove_command
,
1292 COMMAND_EXEC
, "move to current endstate or [tap_state]");
1293 register_command(cmd_ctx
, NULL
, "irscan", handle_irscan_command
,
1294 COMMAND_EXEC
, "execute IR scan <device> <instr> [dev2] [instr2] ...");
1295 register_command(cmd_ctx
, NULL
, "drscan", handle_drscan_command
,
1296 COMMAND_EXEC
, "execute DR scan <device> <var> [dev2] [var2] ...");
1298 register_command(cmd_ctx
, NULL
, "verify_ircapture", handle_verify_ircapture_command
,
1299 COMMAND_ANY
, "verify value captured during Capture-IR <enable|disable>");
1303 int jtag_init(struct command_context_s
*cmd_ctx
)
1309 if (jtag_speed
== -1)
1312 if (jtag_interface
&& (jtag_interface
[0] != 0))
1313 /* configuration var 'jtag_interface' is set, and not empty */
1314 for (i
= 0; jtag_interfaces
[i
]; i
++)
1316 if (strcmp(jtag_interface
, jtag_interfaces
[i
]->name
) == 0)
1318 jtag_device_t
*device
;
1319 device
= jtag_devices
;
1321 if (jtag_interfaces
[i
]->init() != ERROR_OK
)
1322 return ERROR_JTAG_INIT_FAILED
;
1323 jtag
= jtag_interfaces
[i
];
1325 jtag_ir_scan_size
= 0;
1326 jtag_num_devices
= 0;
1327 while (device
!= NULL
)
1329 jtag_ir_scan_size
+= device
->ir_length
;
1331 device
= device
->next
;
1334 jtag_add_statemove(TAP_TLR
);
1335 jtag_execute_queue();
1337 jtag_examine_chain();
1339 jtag_validate_chain();
1345 /* no valid interface was found (i.e. the configuration option,
1346 * didn't match one of the compiled-in interfaces
1348 ERROR("No valid jtag interface found (%s)", jtag_interface
);
1349 ERROR("compiled-in jtag interfaces:");
1350 for (i
= 0; jtag_interfaces
[i
]; i
++)
1352 ERROR("%i: %s", i
, jtag_interfaces
[i
]->name
);
1356 return ERROR_JTAG_INVALID_INTERFACE
;
1359 int handle_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1363 /* only if the configuration var isn't overwritten from cmdline */
1364 if (!jtag_interface
)
1366 if (args
[0] && (args
[0][0] != 0))
1368 for (i
=0; jtag_interfaces
[i
]; i
++)
1370 if (strcmp(args
[0], jtag_interfaces
[i
]->name
) == 0)
1372 if (jtag_interfaces
[i
]->register_commands(cmd_ctx
) != ERROR_OK
)
1375 jtag_interface
= jtag_interfaces
[i
]->name
;
1382 /* remember the requested interface name, so we can complain about it later */
1383 jtag_interface
= strdup(args
[0]);
1384 DEBUG("'interface' command didn't specify a valid interface");
1390 int handle_jtag_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1392 jtag_device_t
**last_device_p
= &jtag_devices
;
1396 while ((*last_device_p
)->next
)
1397 last_device_p
= &((*last_device_p
)->next
);
1398 last_device_p
= &((*last_device_p
)->next
);
1404 *last_device_p
= malloc(sizeof(jtag_device_t
));
1405 (*last_device_p
)->ir_length
= strtoul(args
[0], NULL
, 0);
1407 (*last_device_p
)->expected
= malloc((*last_device_p
)->ir_length
);
1408 buf_set_u32((*last_device_p
)->expected
, 0, (*last_device_p
)->ir_length
, strtoul(args
[1], NULL
, 0));
1409 (*last_device_p
)->expected_mask
= malloc((*last_device_p
)->ir_length
);
1410 buf_set_u32((*last_device_p
)->expected_mask
, 0, (*last_device_p
)->ir_length
, strtoul(args
[2], NULL
, 0));
1412 (*last_device_p
)->cur_instr
= malloc((*last_device_p
)->ir_length
);
1413 (*last_device_p
)->bypass
= 1;
1414 buf_set_ones((*last_device_p
)->cur_instr
, (*last_device_p
)->ir_length
);
1416 (*last_device_p
)->next
= NULL
;
1418 jtag_register_event_callback(jtag_reset_callback
, (*last_device_p
));
1425 int handle_scan_chain_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1427 jtag_device_t
*device
= jtag_devices
;
1428 int device_count
= 0;
1432 u32 expected
, expected_mask
, cur_instr
;
1433 expected
= buf_get_u32(device
->expected
, 0, device
->ir_length
);
1434 expected_mask
= buf_get_u32(device
->expected_mask
, 0, device
->ir_length
);
1435 cur_instr
= buf_get_u32(device
->cur_instr
, 0, device
->ir_length
);
1436 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
);
1437 device
= device
->next
;
1444 int handle_reset_config_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1448 if (strcmp(args
[0], "none") == 0)
1449 jtag_reset_config
= RESET_NONE
;
1450 else if (strcmp(args
[0], "trst_only") == 0)
1451 jtag_reset_config
= RESET_HAS_TRST
;
1452 else if (strcmp(args
[0], "srst_only") == 0)
1453 jtag_reset_config
= RESET_HAS_SRST
;
1454 else if (strcmp(args
[0], "trst_and_srst") == 0)
1455 jtag_reset_config
= RESET_TRST_AND_SRST
;
1458 ERROR("invalid reset_config argument");
1465 if (strcmp(args
[1], "srst_pulls_trst") == 0)
1466 jtag_reset_config
|= RESET_SRST_PULLS_TRST
;
1467 else if (strcmp(args
[1], "trst_pulls_srst") == 0)
1468 jtag_reset_config
|= RESET_TRST_PULLS_SRST
;
1469 else if (strcmp(args
[1], "combined") == 0)
1470 jtag_reset_config
|= RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
;
1471 else if (strcmp(args
[1], "separate") == 0)
1472 jtag_reset_config
&= ~(RESET_SRST_PULLS_TRST
| RESET_TRST_PULLS_SRST
);
1475 ERROR("invalid reset_config argument");
1482 if (strcmp(args
[2], "trst_open_drain") == 0)
1483 jtag_reset_config
|= RESET_TRST_OPEN_DRAIN
;
1484 else if (strcmp(args
[2], "trst_push_pull") == 0)
1485 jtag_reset_config
&= ~RESET_TRST_OPEN_DRAIN
;
1488 ERROR("invalid reset_config argument");
1495 if (strcmp(args
[3], "srst_push_pull") == 0)
1496 jtag_reset_config
|= RESET_SRST_PUSH_PULL
;
1497 else if (strcmp(args
[3], "srst_open_drain") == 0)
1498 jtag_reset_config
&= ~RESET_SRST_PUSH_PULL
;
1501 ERROR("invalid reset_config argument");
1509 int handle_jtag_nsrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1513 ERROR("jtag_nsrst_delay <ms> command takes one required argument");
1518 jtag_nsrst_delay
= strtoul(args
[0], NULL
, 0);
1524 int handle_jtag_ntrst_delay_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1528 ERROR("jtag_ntrst_delay <ms> command takes one required argument");
1533 jtag_ntrst_delay
= strtoul(args
[0], NULL
, 0);
1539 int handle_jtag_speed_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1542 command_print(cmd_ctx
, "jtag_speed: %i", jtag_speed
);
1546 /* this command can be called during CONFIG,
1547 * in which case jtag isn't initialized */
1549 jtag
->speed(strtoul(args
[0], NULL
, 0));
1551 jtag_speed
= strtoul(args
[0], NULL
, 0);
1557 int handle_endstate_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1559 enum tap_state state
;
1563 command_print(cmd_ctx
, "usage: endstate <tap_state>");
1567 for (state
= 0; state
< 16; state
++)
1569 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1571 jtag_add_end_state(state
);
1572 jtag_execute_queue();
1579 int handle_jtag_reset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1583 char *usage
= "usage: jtag_reset <trst> <srst>";
1588 command_print(cmd_ctx
, usage
);
1592 if (args
[0][0] == '1')
1594 else if (args
[0][0] == '0')
1598 command_print(cmd_ctx
, usage
);
1602 if (args
[1][0] == '1')
1604 else if (args
[1][0] == '0')
1608 command_print(cmd_ctx
, usage
);
1612 if ((retval
= jtag_add_reset(trst
, srst
)) != ERROR_OK
)
1616 case ERROR_JTAG_RESET_WOULD_ASSERT_TRST
:
1617 command_print(cmd_ctx
, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args
[1][0]);
1619 case ERROR_JTAG_RESET_CANT_SRST
:
1620 command_print(cmd_ctx
, "can't assert srst because the current reset_config doesn't support it");
1623 command_print(cmd_ctx
, "unknown error");
1626 jtag_execute_queue();
1631 int handle_runtest_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1635 command_print(cmd_ctx
, "usage: runtest <num_cycles>");
1639 jtag_add_runtest(strtol(args
[0], NULL
, 0), -1);
1640 jtag_execute_queue();
1646 int handle_statemove_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1648 enum tap_state state
;
1653 for (state
= 0; state
< 16; state
++)
1655 if (strcmp(args
[0], tap_state_strings
[state
]) == 0)
1662 jtag_add_statemove(state
);
1663 jtag_execute_queue();
1669 int handle_irscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1672 scan_field_t
*fields
;
1674 if ((argc
< 2) || (argc
% 2))
1676 command_print(cmd_ctx
, "usage: irscan <device> <instr> [dev2] [instr2] ...");
1680 fields
= malloc(sizeof(scan_field_t
) * argc
/ 2);
1682 for (i
= 0; i
< argc
/ 2; i
++)
1684 int device
= strtoul(args
[i
*2], NULL
, 0);
1685 int field_size
= jtag_get_device(device
)->ir_length
;
1686 fields
[i
].device
= device
;
1687 fields
[i
].out_value
= malloc(CEIL(field_size
, 8));
1688 buf_set_u32(fields
[i
].out_value
, 0, field_size
, strtoul(args
[i
*2+1], NULL
, 0));
1689 fields
[i
].out_mask
= NULL
;
1690 fields
[i
].in_value
= NULL
;
1691 fields
[i
].in_check_mask
= NULL
;
1692 fields
[i
].in_handler
= NULL
;
1693 fields
[i
].in_handler_priv
= NULL
;
1696 jtag_add_ir_scan(argc
/ 2, fields
, -1);
1697 jtag_execute_queue();
1699 for (i
= 0; i
< argc
/ 2; i
++)
1700 free(fields
[i
].out_value
);
1707 int handle_drscan_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1709 scan_field_t
*fields
;
1711 int field_count
= 0;
1715 if ((argc
< 2) || (argc
% 2))
1717 command_print(cmd_ctx
, "usage: drscan <device> <var> [dev2] [var2]");
1721 for (i
= 0; i
< argc
; i
+=2)
1723 var
= get_var_by_namenum(args
[i
+1]);
1726 num_fields
+= var
->num_fields
;
1730 command_print(cmd_ctx
, "variable %s doesn't exist", args
[i
+1]);
1735 fields
= malloc(sizeof(scan_field_t
) * num_fields
);
1737 for (i
= 0; i
< argc
; i
+=2)
1739 var
= get_var_by_namenum(args
[i
+1]);
1741 for (j
= 0; j
< var
->num_fields
; j
++)
1743 fields
[field_count
].device
= strtol(args
[i
], NULL
, 0);
1744 fields
[field_count
].num_bits
= var
->fields
[j
].num_bits
;
1745 fields
[field_count
].out_value
= malloc(CEIL(var
->fields
[j
].num_bits
, 8));
1746 buf_set_u32(fields
[field_count
].out_value
, 0, var
->fields
[j
].num_bits
, var
->fields
[j
].value
);
1747 fields
[field_count
].out_mask
= NULL
;
1748 fields
[field_count
].in_value
= fields
[field_count
].out_value
;
1749 fields
[field_count
].in_check_mask
= NULL
;
1750 fields
[field_count
].in_check_value
= NULL
;
1751 fields
[field_count
].in_handler
= field_le_to_host
;
1752 fields
[field_count
++].in_handler_priv
= &(var
->fields
[j
]);
1756 jtag_add_dr_scan(num_fields
, fields
, -1);
1757 jtag_execute_queue();
1759 for (i
= 0; i
< argc
/ 2; i
++)
1760 free(fields
[i
].out_value
);
1767 int handle_verify_ircapture_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1771 command_print(cmd_ctx
, "verify Capture-IR is %s", (jtag_verify_capture_ir
) ? "enabled": "disabled");
1775 if (strcmp(args
[0], "enable") == 0)
1777 jtag_verify_capture_ir
= 1;
1779 else if (strcmp(args
[0], "disable") == 0)
1781 jtag_verify_capture_ir
= 0;
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