1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
27 #include "replacements.h"
38 /* note that this is not marked as static as it must be available from outside jtag.c for those
39 that implement the jtag_xxx() minidriver layer
41 int jtag_error=ERROR_OK;
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 * DRSHIFT->DRSHIFT and IRSHIFT->IRSHIFT have to be caught in interface specific code
66 /* RESET IDLE DRSHIFT DRPAUSE IRSHIFT IRPAUSE */
67 { 0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* RESET */
68 { 0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* IDLE */
69 { 0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* DRSHIFT */
70 { 0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* DRPAUSE */
71 { 0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* IRSHIFT */
72 { 0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* IRPAUSE */
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_RESET, TAP_IDLE}, /* RESET */
83 {TAP_IRSELECT, TAP_DRCAPTURE}, /* DRSELECT */
84 {TAP_DREXIT1, TAP_DRSHIFT}, /* DRCAPTURE */
85 {TAP_DREXIT1, TAP_DRSHIFT}, /* DRSHIFT */
86 {TAP_DRUPDATE, TAP_DRPAUSE}, /* DREXIT1 */
87 {TAP_DREXIT2, TAP_DRPAUSE}, /* DRPAUSE */
88 {TAP_DRUPDATE, TAP_DRSHIFT}, /* DREXIT2 */
89 {TAP_DRSELECT, TAP_IDLE}, /* DRUPDATE */
90 {TAP_DRSELECT, TAP_IDLE}, /* IDLE */
91 {TAP_RESET, TAP_IRCAPTURE}, /* IRSELECT */
92 {TAP_IREXIT1, TAP_IRSHIFT}, /* IRCAPTURE */
93 {TAP_IREXIT1, TAP_IRSHIFT}, /* IRSHIFT */
94 {TAP_IRUPDATE, TAP_IRPAUSE}, /* IREXIT1 */
95 {TAP_IREXIT2, TAP_IRPAUSE}, /* IRPAUSE */
96 {TAP_IRUPDATE, TAP_IRSHIFT}, /* IREXIT2 */
97 {TAP_DRSELECT, TAP_IDLE} /* IRUPDATE */
100 char* jtag_event_strings[] =
102 "JTAG controller reset (RESET or TRST)"
105 const Jim_Nvp nvp_jtag_tap_event[] = {
106 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
107 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
109 { .name = NULL, .value = -1 }
112 /* kludge!!!! these are just global variables that the
113 * interface use internally. They really belong
114 * inside the drivers, but we don't want to break
115 * linking the drivers!!!!
117 enum tap_state end_state = TAP_RESET;
118 enum tap_state cur_state = TAP_RESET;
122 jtag_command_t *jtag_command_queue = NULL;
123 jtag_command_t **last_comand_pointer = &jtag_command_queue;
124 static jtag_tap_t *jtag_all_taps = NULL;
126 enum reset_types jtag_reset_config = RESET_NONE;
127 enum tap_state cmd_queue_end_state = TAP_RESET;
128 enum tap_state cmd_queue_cur_state = TAP_RESET;
130 int jtag_verify_capture_ir = 1;
132 /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
133 int jtag_nsrst_delay = 0; /* default to no nSRST delay */
134 int jtag_ntrst_delay = 0; /* default to no nTRST delay */
136 /* maximum number of JTAG devices expected in the chain
138 #define JTAG_MAX_CHAIN_SIZE 20
140 /* callbacks to inform high-level handlers about JTAG state changes */
141 jtag_event_callback_t *jtag_event_callbacks;
144 static int speed_khz = 0;
145 /* flag if the kHz speed was defined */
146 static int hasKHz = 0;
148 /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
151 #if BUILD_ECOSBOARD == 1
152 extern jtag_interface_t zy1000_interface;
155 #if BUILD_PARPORT == 1
156 extern jtag_interface_t parport_interface;
160 extern jtag_interface_t dummy_interface;
163 #if BUILD_FT2232_FTD2XX == 1
164 extern jtag_interface_t ft2232_interface;
167 #if BUILD_FT2232_LIBFTDI == 1
168 extern jtag_interface_t ft2232_interface;
171 #if BUILD_AMTJTAGACCEL == 1
172 extern jtag_interface_t amt_jtagaccel_interface;
175 #if BUILD_EP93XX == 1
176 extern jtag_interface_t ep93xx_interface;
179 #if BUILD_AT91RM9200 == 1
180 extern jtag_interface_t at91rm9200_interface;
183 #if BUILD_GW16012 == 1
184 extern jtag_interface_t gw16012_interface;
187 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
188 extern jtag_interface_t presto_interface;
191 #if BUILD_USBPROG == 1
192 extern jtag_interface_t usbprog_interface;
196 extern jtag_interface_t jlink_interface;
199 #if BUILD_VSLLINK == 1
200 extern jtag_interface_t vsllink_interface;
204 extern jtag_interface_t rlink_interface;
207 jtag_interface_t *jtag_interfaces[] = {
208 #if BUILD_ECOSBOARD == 1
211 #if BUILD_PARPORT == 1
217 #if BUILD_FT2232_FTD2XX == 1
220 #if BUILD_FT2232_LIBFTDI == 1
223 #if BUILD_AMTJTAGACCEL == 1
224 &amt_jtagaccel_interface,
226 #if BUILD_EP93XX == 1
229 #if BUILD_AT91RM9200 == 1
230 &at91rm9200_interface,
232 #if BUILD_GW16012 == 1
235 #if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
238 #if BUILD_USBPROG == 1
244 #if BUILD_VSLLINK == 1
253 jtag_interface_t *jtag = NULL;
256 jtag_interface_t *jtag_interface = NULL;
259 /* forward declarations */
260 void jtag_add_pathmove(int num_states, enum tap_state *path);
261 void jtag_add_runtest(int num_cycles, enum tap_state endstate);
262 void jtag_add_end_state(enum tap_state endstate);
263 void jtag_add_sleep(u32 us);
264 int jtag_execute_queue(void);
268 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
269 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
270 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
271 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
272 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
273 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
274 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
276 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
278 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
279 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
280 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
281 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
282 int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
284 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
286 jtag_tap_t *jtag_AllTaps(void)
288 return jtag_all_taps;
291 int jtag_NumTotalTaps(void)
305 int jtag_NumEnabledTaps(void)
322 jtag_tap_t *jtag_TapByString( const char *s )
330 if( 0 == strcmp( t->dotted_name, s ) ){
336 // backup plan is by number
338 /* ok - is "s" a number? */
340 n = strtol( s, &cp, 0 );
341 if( (s != cp) && (*cp == 0) ){
343 t = jtag_TapByAbsPosition(n);
349 jtag_tap_t * jtag_TapByJimObj( Jim_Interp *interp, Jim_Obj *o )
354 cp = Jim_GetString( o, NULL );
359 t = jtag_TapByString( cp );
362 Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
367 /* returns a pointer to the n-th device in the scan chain */
368 jtag_tap_t * jtag_TapByAbsPosition( int n )
376 while( t && (n > 0)) {
383 int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
385 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
387 if (callback == NULL)
389 return ERROR_INVALID_ARGUMENTS;
394 while ((*callbacks_p)->next)
395 callbacks_p = &((*callbacks_p)->next);
396 callbacks_p = &((*callbacks_p)->next);
399 (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
400 (*callbacks_p)->callback = callback;
401 (*callbacks_p)->priv = priv;
402 (*callbacks_p)->next = NULL;
407 int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
409 jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
411 if (callback == NULL)
413 return ERROR_INVALID_ARGUMENTS;
418 jtag_event_callback_t **next = &((*callbacks_p)->next);
419 if ((*callbacks_p)->callback == callback)
422 *callbacks_p = *next;
430 int jtag_call_event_callbacks(enum jtag_event event)
432 jtag_event_callback_t *callback = jtag_event_callbacks;
434 LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
438 callback->callback(event, callback->priv);
439 callback = callback->next;
445 /* returns a pointer to the pointer of the last command in queue
446 * this may be a pointer to the root pointer (jtag_command_queue)
447 * or to the next member of the last but one command
449 jtag_command_t** jtag_get_last_command_p(void)
451 /* jtag_command_t *cmd = jtag_command_queue;
457 return &jtag_command_queue;
461 return last_comand_pointer;
464 void* cmd_queue_alloc(size_t size)
466 cmd_queue_page_t **p_page = &cmd_queue_pages;
472 * We align/round the *SIZE* per below
473 * so that all pointers returned by
474 * this function are reasonably well
477 * If we did not, then an "odd-length" request would cause the
478 * *next* allocation to be at an *odd* address, and because
479 * this function has the same type of api as malloc() - we
480 * must also return pointers that have the same type of
483 * What I do not/have is a reasonable portable means
486 * The solution here, is based on these suggestions.
487 * http://gcc.gnu.org/ml/gcc-help/2008-12/msg00041.html
490 union worse_case_align {
496 #define ALIGN_SIZE (sizeof(union worse_case_align))
498 /* The alignment process. */
499 size = (size + ALIGN_SIZE -1) & (~(ALIGN_SIZE-1));
504 while ((*p_page)->next)
505 p_page = &((*p_page)->next);
506 if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
507 p_page = &((*p_page)->next);
512 *p_page = malloc(sizeof(cmd_queue_page_t));
514 (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
515 (*p_page)->next = NULL;
518 offset = (*p_page)->used;
519 (*p_page)->used += size;
521 t=(u8 *)((*p_page)->address);
525 void cmd_queue_free(void)
527 cmd_queue_page_t *page = cmd_queue_pages;
531 cmd_queue_page_t *last = page;
537 cmd_queue_pages = NULL;
540 static void jtag_prelude1(void)
544 LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
545 jtag_error=ERROR_JTAG_TRST_ASSERTED;
549 if (cmd_queue_end_state == TAP_RESET)
550 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
553 static void jtag_prelude(enum tap_state state)
558 jtag_add_end_state(state);
560 cmd_queue_cur_state = cmd_queue_end_state;
563 void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
569 retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
570 if (retval!=ERROR_OK)
574 int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
576 jtag_command_t **last_cmd;
584 last_cmd = jtag_get_last_command_p();
586 /* allocate memory for a new list member */
587 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
588 (*last_cmd)->next = NULL;
589 last_comand_pointer = &((*last_cmd)->next);
590 (*last_cmd)->type = JTAG_SCAN;
592 /* allocate memory for ir scan command */
593 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
594 (*last_cmd)->cmd.scan->ir_scan = 1;
595 x = jtag_NumEnabledTaps();
596 (*last_cmd)->cmd.scan->num_fields = x; /* one field per device */
597 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(x * sizeof(scan_field_t));
598 (*last_cmd)->cmd.scan->end_state = state;
605 // do this here so it is not forgotten
606 tap = jtag_NextEnabledTap(tap);
611 scan_size = tap->ir_length;
612 (*last_cmd)->cmd.scan->fields[nth_tap].tap = tap;
613 (*last_cmd)->cmd.scan->fields[nth_tap].num_bits = scan_size;
614 (*last_cmd)->cmd.scan->fields[nth_tap].in_value = NULL;
615 (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = NULL; /* disable verification by default */
617 /* search the list */
618 for (j = 0; j < num_fields; j++)
620 if (tap == fields[j].tap)
623 (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
624 (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
626 if (jtag_verify_capture_ir)
628 if (fields[j].in_handler==NULL)
630 jtag_set_check_value((*last_cmd)->cmd.scan->fields+nth_tap, tap->expected, tap->expected_mask, NULL);
633 (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = fields[j].in_handler;
634 (*last_cmd)->cmd.scan->fields[nth_tap].in_handler_priv = fields[j].in_handler_priv;
635 (*last_cmd)->cmd.scan->fields[nth_tap].in_check_value = tap->expected;
636 (*last_cmd)->cmd.scan->fields[nth_tap].in_check_mask = tap->expected_mask;
647 /* if a tap isn't listed, set it to BYPASS */
648 (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
649 (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = NULL;
653 /* update device information */
654 buf_cpy((*last_cmd)->cmd.scan->fields[nth_tap].out_value, tap->cur_instr, scan_size);
660 void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
666 retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
667 if (retval!=ERROR_OK)
671 int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
674 jtag_command_t **last_cmd;
676 last_cmd = jtag_get_last_command_p();
678 /* allocate memory for a new list member */
679 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
680 (*last_cmd)->next = NULL;
681 last_comand_pointer = &((*last_cmd)->next);
682 (*last_cmd)->type = JTAG_SCAN;
684 /* allocate memory for ir scan command */
685 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
686 (*last_cmd)->cmd.scan->ir_scan = 1;
687 (*last_cmd)->cmd.scan->num_fields = num_fields;
688 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
689 (*last_cmd)->cmd.scan->end_state = state;
691 for( i = 0 ; i < num_fields ; i++ ){
692 int num_bits = fields[i].num_bits;
693 int num_bytes = CEIL(fields[i].num_bits, 8);
694 (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap;
695 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
696 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
697 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
698 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
699 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
700 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
701 (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
702 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
707 void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
713 retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
714 if (retval!=ERROR_OK)
718 int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
722 int bypass_devices = 0;
726 jtag_command_t **last_cmd = jtag_get_last_command_p();
729 /* count devices in bypass */
733 tap = jtag_NextEnabledTap(tap);
742 /* allocate memory for a new list member */
743 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
744 last_comand_pointer = &((*last_cmd)->next);
745 (*last_cmd)->next = NULL;
746 (*last_cmd)->type = JTAG_SCAN;
748 /* allocate memory for dr scan command */
749 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
750 (*last_cmd)->cmd.scan->ir_scan = 0;
751 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
752 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
753 (*last_cmd)->cmd.scan->end_state = state;
759 tap = jtag_NextEnabledTap(tap);
764 (*last_cmd)->cmd.scan->fields[field_count].tap = tap;
766 for (j = 0; j < num_fields; j++)
768 if (tap == fields[j].tap)
771 scan_size = fields[j].num_bits;
772 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
773 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
774 (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
775 (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
776 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
777 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
778 (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
779 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
784 #ifdef _DEBUG_JTAG_IO_
785 /* if a device isn't listed, the BYPASS register should be selected */
788 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
792 /* program the scan field to 1 bit length, and ignore it's value */
793 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
794 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
795 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
796 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
797 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
798 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
799 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
800 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
804 #ifdef _DEBUG_JTAG_IO_
805 /* if a device is listed, the BYPASS register must not be selected */
808 LOG_ERROR("BUG: scan data for a device in BYPASS");
817 void MINIDRIVER(interface_jtag_add_dr_out)(jtag_tap_t *target_tap,
821 enum tap_state end_state)
826 int bypass_devices = 0;
828 jtag_command_t **last_cmd = jtag_get_last_command_p();
831 /* count devices in bypass */
835 tap = jtag_NextEnabledTap(tap);
844 /* allocate memory for a new list member */
845 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
846 last_comand_pointer = &((*last_cmd)->next);
847 (*last_cmd)->next = NULL;
848 (*last_cmd)->type = JTAG_SCAN;
850 /* allocate memory for dr scan command */
851 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
852 (*last_cmd)->cmd.scan->ir_scan = 0;
853 (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
854 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
855 (*last_cmd)->cmd.scan->end_state = end_state;
860 tap = jtag_NextEnabledTap(tap);
865 (*last_cmd)->cmd.scan->fields[field_count].tap = tap;
867 if (tap == target_tap)
870 #ifdef _DEBUG_JTAG_IO_
871 /* if a device is listed, the BYPASS register must not be selected */
874 LOG_ERROR("BUG: scan data for a device in BYPASS");
878 for (j = 0; j < num_fields; j++)
881 scan_size = num_bits[j];
882 buf_set_u32(out_value, 0, scan_size, value[j]);
883 (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
884 (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
885 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
886 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
887 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
888 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
889 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
890 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
894 #ifdef _DEBUG_JTAG_IO_
895 /* if a device isn't listed, the BYPASS register should be selected */
898 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
902 /* program the scan field to 1 bit length, and ignore it's value */
903 (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
904 (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
905 (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
906 (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
907 (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
908 (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
909 (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
910 (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
915 void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
921 retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
922 if (retval!=ERROR_OK)
926 int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
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_comand_pointer = &((*last_cmd)->next);
934 (*last_cmd)->next = NULL;
935 (*last_cmd)->type = JTAG_SCAN;
937 /* allocate memory for scan command */
938 (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
939 (*last_cmd)->cmd.scan->ir_scan = 0;
940 (*last_cmd)->cmd.scan->num_fields = num_fields;
941 (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
942 (*last_cmd)->cmd.scan->end_state = state;
944 for (i = 0; i < num_fields; i++)
946 int num_bits = fields[i].num_bits;
947 int num_bytes = CEIL(fields[i].num_bits, 8);
948 (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap;
949 (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
950 (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
951 (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
952 (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
953 (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
954 (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
955 (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
956 (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
962 void jtag_add_tlr(void)
964 jtag_prelude(TAP_RESET);
967 retval=interface_jtag_add_tlr();
968 if (retval!=ERROR_OK)
972 int MINIDRIVER(interface_jtag_add_tlr)(void)
974 enum tap_state state = TAP_RESET;
975 jtag_command_t **last_cmd = jtag_get_last_command_p();
977 /* allocate memory for a new list member */
978 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
979 last_comand_pointer = &((*last_cmd)->next);
980 (*last_cmd)->next = NULL;
981 (*last_cmd)->type = JTAG_STATEMOVE;
983 (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
984 (*last_cmd)->cmd.statemove->end_state = state;
989 void jtag_add_pathmove(int num_states, enum tap_state *path)
991 enum tap_state cur_state=cmd_queue_cur_state;
995 /* the last state has to be a stable state */
996 if (tap_move_map[path[num_states - 1]] == -1)
998 LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
1002 for (i=0; i<num_states; i++)
1004 if (path[i] == TAP_RESET)
1006 LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
1009 if ((tap_transitions[cur_state].low != path[i])&&
1010 (tap_transitions[cur_state].high != path[i]))
1012 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", jtag_state_name(cur_state), jtag_state_name(path[i]));
1015 cur_state = path[i];
1020 retval=interface_jtag_add_pathmove(num_states, path);
1021 cmd_queue_cur_state = path[num_states - 1];
1022 if (retval!=ERROR_OK)
1026 int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
1028 jtag_command_t **last_cmd = jtag_get_last_command_p();
1031 /* allocate memory for a new list member */
1032 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1033 last_comand_pointer = &((*last_cmd)->next);
1034 (*last_cmd)->next = NULL;
1035 (*last_cmd)->type = JTAG_PATHMOVE;
1037 (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
1038 (*last_cmd)->cmd.pathmove->num_states = num_states;
1039 (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
1041 for (i = 0; i < num_states; i++)
1042 (*last_cmd)->cmd.pathmove->path[i] = path[i];
1047 int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
1049 jtag_command_t **last_cmd = jtag_get_last_command_p();
1051 /* allocate memory for a new list member */
1052 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1053 (*last_cmd)->next = NULL;
1054 last_comand_pointer = &((*last_cmd)->next);
1055 (*last_cmd)->type = JTAG_RUNTEST;
1057 (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
1058 (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
1059 (*last_cmd)->cmd.runtest->end_state = state;
1064 void jtag_add_runtest(int num_cycles, enum tap_state state)
1068 jtag_prelude(state);
1070 /* executed by sw or hw fifo */
1071 retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
1072 if (retval!=ERROR_OK)
1077 int MINIDRIVER(interface_jtag_add_clocks)( int num_cycles )
1079 jtag_command_t **last_cmd = jtag_get_last_command_p();
1081 /* allocate memory for a new list member */
1082 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1083 (*last_cmd)->next = NULL;
1084 last_comand_pointer = &((*last_cmd)->next);
1085 (*last_cmd)->type = JTAG_STABLECLOCKS;
1087 (*last_cmd)->cmd.stableclocks = cmd_queue_alloc(sizeof(stableclocks_command_t));
1088 (*last_cmd)->cmd.stableclocks->num_cycles = num_cycles;
1092 void jtag_add_clocks( int num_cycles )
1098 retval=interface_jtag_add_clocks(num_cycles);
1099 if (retval!=ERROR_OK)
1103 void jtag_add_reset(int req_tlr_or_trst, int req_srst)
1105 int trst_with_tlr = 0;
1108 /* FIX!!! there are *many* different cases here. A better
1109 * approach is needed for legal combinations of transitions...
1111 if ((jtag_reset_config & RESET_HAS_SRST)&&
1112 (jtag_reset_config & RESET_HAS_TRST)&&
1113 ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
1115 if (((req_tlr_or_trst&&!jtag_trst)||
1116 (!req_tlr_or_trst&&jtag_trst))&&
1117 ((req_srst&&!jtag_srst)||
1118 (!req_srst&&jtag_srst)))
1120 /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
1121 //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
1125 /* Make sure that jtag_reset_config allows the requested reset */
1126 /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
1127 if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
1129 LOG_ERROR("BUG: requested reset would assert trst");
1130 jtag_error=ERROR_FAIL;
1134 /* if TRST pulls SRST, we reset with TAP T-L-R */
1135 if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
1140 if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
1142 LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
1143 jtag_error=ERROR_FAIL;
1147 if (req_tlr_or_trst)
1149 if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
1161 jtag_srst = req_srst;
1163 retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
1164 if (retval!=ERROR_OK)
1172 LOG_DEBUG("SRST line asserted");
1176 LOG_DEBUG("SRST line released");
1177 if (jtag_nsrst_delay)
1178 jtag_add_sleep(jtag_nsrst_delay * 1000);
1183 LOG_DEBUG("JTAG reset with RESET instead of TRST");
1184 jtag_add_end_state(TAP_RESET);
1186 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1192 /* we just asserted nTRST, so we're now in Test-Logic-Reset,
1193 * and inform possible listeners about this
1195 LOG_DEBUG("TRST line asserted");
1196 cmd_queue_cur_state = TAP_RESET;
1197 jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
1201 if (jtag_ntrst_delay)
1202 jtag_add_sleep(jtag_ntrst_delay * 1000);
1206 int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
1208 jtag_command_t **last_cmd = jtag_get_last_command_p();
1210 /* allocate memory for a new list member */
1211 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1212 (*last_cmd)->next = NULL;
1213 last_comand_pointer = &((*last_cmd)->next);
1214 (*last_cmd)->type = JTAG_RESET;
1216 (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
1217 (*last_cmd)->cmd.reset->trst = req_trst;
1218 (*last_cmd)->cmd.reset->srst = req_srst;
1223 void jtag_add_end_state(enum tap_state state)
1225 cmd_queue_end_state = state;
1226 if ((cmd_queue_end_state == TAP_DRSHIFT)||(cmd_queue_end_state == TAP_IRSHIFT))
1228 LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field");
1232 int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
1234 jtag_command_t **last_cmd = jtag_get_last_command_p();
1236 /* allocate memory for a new list member */
1237 *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
1238 (*last_cmd)->next = NULL;
1239 last_comand_pointer = &((*last_cmd)->next);
1240 (*last_cmd)->type = JTAG_SLEEP;
1242 (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
1243 (*last_cmd)->cmd.sleep->us = us;
1248 void jtag_add_sleep(u32 us)
1250 keep_alive(); /* we might be running on a very slow JTAG clk */
1251 int retval=interface_jtag_add_sleep(us);
1252 if (retval!=ERROR_OK)
1257 int jtag_scan_size(scan_command_t *cmd)
1262 /* count bits in scan command */
1263 for (i = 0; i < cmd->num_fields; i++)
1265 bit_count += cmd->fields[i].num_bits;
1271 int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
1276 bit_count = jtag_scan_size(cmd);
1277 *buffer = malloc(CEIL(bit_count, 8));
1281 LOG_DEBUG("num_fields: %i",cmd->num_fields);
1283 for (i = 0; i < cmd->num_fields; i++)
1285 if (cmd->fields[i].out_value)
1287 #ifdef _DEBUG_JTAG_IO_
1288 char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
1290 buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
1291 #ifdef _DEBUG_JTAG_IO_
1292 LOG_DEBUG("fields[%i].out_value[%i]: 0x%s", i, cmd->fields[i].num_bits, char_buf);
1297 bit_count += cmd->fields[i].num_bits;
1298 LOG_DEBUG("bit_count totalling: %i", bit_count );
1304 int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
1310 /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
1313 for (i = 0; i < cmd->num_fields; i++)
1315 /* if neither in_value nor in_handler
1316 * are specified we don't have to examine this field
1318 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1320 int num_bits = cmd->fields[i].num_bits;
1321 u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
1323 #ifdef _DEBUG_JTAG_IO_
1324 char *char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1325 LOG_DEBUG("fields[%i].in_value[%i]: 0x%s", i, num_bits, char_buf);
1329 if (cmd->fields[i].in_value)
1331 buf_cpy(captured, cmd->fields[i].in_value, num_bits);
1333 if (cmd->fields[i].in_handler)
1335 if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1337 LOG_WARNING("in_handler: with \"in_value\", mismatch in %s", cmd->ir_scan ? "SIR" : "SDR" );
1338 retval = ERROR_JTAG_QUEUE_FAILED;
1343 /* no in_value specified, but a handler takes care of the scanned data */
1344 if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
1346 if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
1348 /* We're going to call the error:handler later, but if the in_handler
1349 * reported an error we report this failure upstream
1351 LOG_WARNING("in_handler: w/o \"in_value\", mismatch in %s", cmd->ir_scan ? "SIR" : "SDR" );
1352 retval = ERROR_JTAG_QUEUE_FAILED;
1358 bit_count += cmd->fields[i].num_bits;
1364 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
1366 int retval = ERROR_OK;
1367 int num_bits = field->num_bits;
1369 int compare_failed = 0;
1371 if (field->in_check_mask)
1372 compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
1374 compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
1376 if (compare_failed){
1377 /* An error handler could have caught the failing check
1378 * only report a problem when there wasn't a handler, or if the handler
1379 * acknowledged the error
1381 LOG_WARNING("TAP %s:",
1382 (field->tap == NULL) ? "(unknown)" : field->tap->dotted_name );
1385 char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
1386 char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
1388 if (field->in_check_mask)
1390 char *in_check_mask_char;
1391 in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
1392 LOG_WARNING("value captured during scan didn't pass the requested check:");
1393 LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
1394 captured_char, in_check_value_char, in_check_mask_char);
1395 free(in_check_mask_char);
1399 LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
1402 free(captured_char);
1403 free(in_check_value_char);
1405 retval = ERROR_JTAG_QUEUE_FAILED;
1413 set up checking of this field using the in_handler. The values passed in must be valid until
1414 after jtag_execute() has completed.
1416 void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
1419 field->in_handler = jtag_check_value;
1421 field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
1422 field->in_handler_priv = NULL;
1423 field->in_check_value = value;
1424 field->in_check_mask = mask;
1427 enum scan_type jtag_scan_type(scan_command_t *cmd)
1432 for (i = 0; i < cmd->num_fields; i++)
1434 if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
1436 if (cmd->fields[i].out_value)
1443 int MINIDRIVER(interface_jtag_execute_queue)(void)
1449 LOG_ERROR("No JTAG interface configured yet. Issue 'init' command in startup scripts before communicating with targets.");
1453 retval = jtag->execute_queue();
1457 jtag_command_queue = NULL;
1458 last_comand_pointer = &jtag_command_queue;
1463 int jtag_execute_queue(void)
1465 int retval=interface_jtag_execute_queue();
1466 if (retval==ERROR_OK)
1470 jtag_error=ERROR_OK;
1474 int jtag_reset_callback(enum jtag_event event, void *priv)
1476 jtag_tap_t *tap = priv;
1480 if (event == JTAG_TRST_ASSERTED)
1482 buf_set_ones(tap->cur_instr, tap->ir_length);
1489 void jtag_sleep(u32 us)
1491 alive_sleep(us/1000);
1494 /* Try to examine chain layout according to IEEE 1149.1 §12
1496 int jtag_examine_chain(void)
1500 u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
1503 int device_count = 0;
1504 u8 zero_check = 0x0;
1505 u8 one_check = 0xff;
1508 field.num_bits = sizeof(idcode_buffer) * 8;
1509 field.out_value = idcode_buffer;
1510 field.out_mask = NULL;
1511 field.in_value = idcode_buffer;
1512 field.in_check_value = NULL;
1513 field.in_check_mask = NULL;
1514 field.in_handler = NULL;
1515 field.in_handler_priv = NULL;
1517 for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
1519 buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
1522 jtag_add_plain_dr_scan(1, &field, TAP_RESET);
1523 jtag_execute_queue();
1525 for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
1527 zero_check |= idcode_buffer[i];
1528 one_check &= idcode_buffer[i];
1531 /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
1532 if ((zero_check == 0x00) || (one_check == 0xff))
1534 LOG_ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
1535 return ERROR_JTAG_INIT_FAILED;
1538 // point at the 1st tap
1539 tap = jtag_NextEnabledTap(NULL);
1541 LOG_ERROR("JTAG: No taps enabled?");
1542 return ERROR_JTAG_INIT_FAILED;
1545 for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
1547 u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1548 if ((idcode & 1) == 0)
1550 /* LSB must not be 0, this indicates a device in bypass */
1551 LOG_WARNING("Tap/Device does not have IDCODE");
1562 if (idcode == 0x000000FF)
1565 /* End of chain (invalid manufacturer ID)
1567 * The JTAG examine is the very first thing that happens
1569 * A single JTAG device requires only 64 bits to be read back correctly.
1571 * The code below adds a check that the rest of the data scanned (640 bits)
1572 * are all as expected. This helps diagnose/catch problems with the JTAG chain
1574 * earlier and gives more helpful/explicit error messages.
1576 for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
1578 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
1579 if (unexpected||(idcode != 0x000000FF))
1581 LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode);
1589 #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
1590 manufacturer = EXTRACT_MFG(idcode);
1591 #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
1592 part = EXTRACT_PART(idcode);
1593 #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
1594 version = EXTRACT_VER(idcode);
1596 LOG_INFO("JTAG tap: %s tap/device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
1597 ((tap != NULL) ? (tap->dotted_name) : "(not-named)"),
1598 idcode, manufacturer, part, version);
1604 tap->idcode = idcode;
1606 if (tap->expected_ids_cnt > 0) {
1607 /* Loop over the expected identification codes and test for a match */
1609 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1610 if( tap->idcode == tap->expected_ids[ii] ){
1615 /* If none of the expected ids matched, log an error */
1616 if (ii == tap->expected_ids_cnt) {
1617 LOG_ERROR("JTAG tap: %s got: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
1620 EXTRACT_MFG( tap->idcode ),
1621 EXTRACT_PART( tap->idcode ),
1622 EXTRACT_VER( tap->idcode ) );
1623 for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
1624 LOG_ERROR("JTAG tap: %s expected %hhu of %hhu: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
1627 tap->expected_ids_cnt,
1628 tap->expected_ids[ii],
1629 EXTRACT_MFG( tap->expected_ids[ii] ),
1630 EXTRACT_PART( tap->expected_ids[ii] ),
1631 EXTRACT_VER( tap->expected_ids[ii] ) );
1634 return ERROR_JTAG_INIT_FAILED;
1636 LOG_INFO("JTAG Tap/device matched");
1640 LOG_INFO("JTAG TAP ID: 0x%08x - Unknown - please report (A) chipname and (B) idcode to the openocd project",
1644 tap = jtag_NextEnabledTap(tap);
1649 /* see if number of discovered devices matches configuration */
1650 if (device_count != jtag_NumEnabledTaps())
1652 LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match (enabled) configuration (%i), total taps: %d",
1653 device_count, jtag_NumEnabledTaps(), jtag_NumTotalTaps());
1654 LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
1655 return ERROR_JTAG_INIT_FAILED;
1661 int jtag_validate_chain(void)
1664 int total_ir_length = 0;
1670 total_ir_length = 0;
1672 tap = jtag_NextEnabledTap(tap);
1676 total_ir_length += tap->ir_length;
1679 total_ir_length += 2;
1680 ir_test = malloc(CEIL(total_ir_length, 8));
1681 buf_set_ones(ir_test, total_ir_length);
1684 field.num_bits = total_ir_length;
1685 field.out_value = ir_test;
1686 field.out_mask = NULL;
1687 field.in_value = ir_test;
1688 field.in_check_value = NULL;
1689 field.in_check_mask = NULL;
1690 field.in_handler = NULL;
1691 field.in_handler_priv = NULL;
1693 jtag_add_plain_ir_scan(1, &field, TAP_RESET);
1694 jtag_execute_queue();
1699 tap = jtag_NextEnabledTap(tap);
1705 if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
1707 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1708 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1711 return ERROR_JTAG_INIT_FAILED;
1713 chain_pos += tap->ir_length;
1716 if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
1718 char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
1719 LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
1722 return ERROR_JTAG_INIT_FAILED;
1730 enum jtag_tap_cfg_param {
1734 static Jim_Nvp nvp_config_opts[] = {
1735 { .name = "-event", .value = JCFG_EVENT },
1737 { .name = NULL, .value = -1 }
1741 jtag_tap_configure_cmd( Jim_GetOptInfo *goi,
1748 /* parse config or cget options */
1749 while (goi->argc > 0) {
1750 Jim_SetEmptyResult (goi->interp);
1752 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
1754 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
1760 if (goi->argc == 0) {
1761 Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." );
1765 e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n );
1767 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
1771 if (goi->isconfigure) {
1772 if (goi->argc != 1) {
1773 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
1777 if (goi->argc != 0) {
1778 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
1784 jtag_tap_event_action_t *jteap;
1786 jteap = tap->event_action;
1787 /* replace existing? */
1789 if (jteap->event == n->value) {
1792 jteap = jteap->next;
1795 if (goi->isconfigure) {
1796 if (jteap == NULL) {
1798 jteap = calloc(1, sizeof (*jteap));
1800 jteap->event = n->value;
1801 Jim_GetOpt_Obj( goi, &o);
1803 Jim_DecrRefCount(interp, jteap->body);
1805 jteap->body = Jim_DuplicateObj(goi->interp, o);
1806 Jim_IncrRefCount(jteap->body);
1808 /* add to head of event list */
1809 jteap->next = tap->event_action;
1810 tap->event_action = jteap;
1811 Jim_SetEmptyResult(goi->interp);
1814 if (jteap == NULL) {
1815 Jim_SetEmptyResult(goi->interp);
1817 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
1824 } /* while (goi->argc) */
1829 static int jim_newtap_cmd( Jim_GetOptInfo *goi )
1839 const Jim_Nvp opts[] = {
1840 #define NTAP_OPT_IRLEN 0
1841 { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
1842 #define NTAP_OPT_IRMASK 1
1843 { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
1844 #define NTAP_OPT_IRCAPTURE 2
1845 { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
1846 #define NTAP_OPT_ENABLED 3
1847 { .name = "-enable" , .value = NTAP_OPT_ENABLED },
1848 #define NTAP_OPT_DISABLED 4
1849 { .name = "-disable" , .value = NTAP_OPT_DISABLED },
1850 #define NTAP_OPT_EXPECTED_ID 5
1851 { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
1852 { .name = NULL , .value = -1 },
1855 pTap = malloc( sizeof(jtag_tap_t) );
1856 memset( pTap, 0, sizeof(*pTap) );
1858 Jim_SetResult_sprintf( goi->interp, "no memory");
1862 * we expect CHIP + TAP + OPTIONS
1864 if( goi->argc < 3 ){
1865 Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
1868 Jim_GetOpt_String( goi, &cp, NULL );
1869 pTap->chip = strdup(cp);
1871 Jim_GetOpt_String( goi, &cp, NULL );
1872 pTap->tapname = strdup(cp);
1874 /* name + dot + name + null */
1875 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
1877 sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
1878 pTap->dotted_name = cp;
1880 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
1881 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
1883 /* default is enabled */
1886 /* deal with options */
1887 #define NTREQ_IRLEN 1
1888 #define NTREQ_IRCAPTURE 2
1889 #define NTREQ_IRMASK 4
1891 /* clear them as we find them */
1892 reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
1895 e = Jim_GetOpt_Nvp( goi, opts, &n );
1897 Jim_GetOpt_NvpUnknown( goi, opts, 0 );
1900 LOG_DEBUG("Processing option: %s", n->name );
1902 case NTAP_OPT_ENABLED:
1905 case NTAP_OPT_DISABLED:
1908 case NTAP_OPT_EXPECTED_ID:
1910 u32 *new_expected_ids;
1912 e = Jim_GetOpt_Wide( goi, &w );
1914 Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
1918 new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
1919 if (new_expected_ids == NULL) {
1920 Jim_SetResult_sprintf( goi->interp, "no memory");
1924 memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
1926 new_expected_ids[pTap->expected_ids_cnt] = w;
1928 free(pTap->expected_ids);
1929 pTap->expected_ids = new_expected_ids;
1930 pTap->expected_ids_cnt++;
1933 case NTAP_OPT_IRLEN:
1934 case NTAP_OPT_IRMASK:
1935 case NTAP_OPT_IRCAPTURE:
1936 e = Jim_GetOpt_Wide( goi, &w );
1938 Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
1941 if( (w < 0) || (w > 0xffff) ){
1943 Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
1944 n->name, (int)(w), (int)(w));
1948 case NTAP_OPT_IRLEN:
1949 pTap->ir_length = w;
1950 reqbits &= (~(NTREQ_IRLEN));
1952 case NTAP_OPT_IRMASK:
1953 pTap->ir_capture_mask = w;
1954 reqbits &= (~(NTREQ_IRMASK));
1956 case NTAP_OPT_IRCAPTURE:
1957 pTap->ir_capture_value = w;
1958 reqbits &= (~(NTREQ_IRCAPTURE));
1961 } /* switch(n->value) */
1962 } /* while( goi->argc ) */
1964 /* Did we get all the options? */
1967 Jim_SetResult_sprintf( goi->interp,
1968 "newtap: %s missing required parameters",
1970 /* TODO: Tell user what is missing :-( */
1971 /* no memory leaks pelase */
1972 free(((void *)(pTap->expected_ids)));
1973 free(((void *)(pTap->chip)));
1974 free(((void *)(pTap->tapname)));
1975 free(((void *)(pTap->dotted_name)));
1976 free(((void *)(pTap)));
1980 pTap->expected = malloc( pTap->ir_length );
1981 pTap->expected_mask = malloc( pTap->ir_length );
1982 pTap->cur_instr = malloc( pTap->ir_length );
1984 buf_set_u32( pTap->expected,
1987 pTap->ir_capture_value );
1988 buf_set_u32( pTap->expected_mask,
1991 pTap->ir_capture_mask );
1992 buf_set_ones( pTap->cur_instr,
1997 jtag_register_event_callback(jtag_reset_callback, pTap );
1999 ppTap = &(jtag_all_taps);
2000 while( (*ppTap) != NULL ){
2001 ppTap = &((*ppTap)->next_tap);
2005 static int n_taps = 0;
2006 pTap->abs_chain_position = n_taps++;
2008 LOG_DEBUG( "Created Tap: %s @ abs position %d, irlen %d, capture: 0x%x mask: 0x%x",
2009 (*ppTap)->dotted_name,
2010 (*ppTap)->abs_chain_position,
2011 (*ppTap)->ir_length,
2012 (*ppTap)->ir_capture_value,
2013 (*ppTap)->ir_capture_mask );
2018 static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
2024 struct command_context_s *context;
2028 JTAG_CMD_INIT_RESET,
2031 JTAG_CMD_TAPDISABLE,
2032 JTAG_CMD_TAPISENABLED,
2037 const Jim_Nvp jtag_cmds[] = {
2038 { .name = "interface" , .value = JTAG_CMD_INTERFACE },
2039 { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
2040 { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
2041 { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
2042 { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
2043 { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
2044 { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
2045 { .name = "cget" , .value = JTAG_CMD_CGET },
2047 { .name = NULL, .value = -1 },
2050 context = Jim_GetAssocData(interp, "context");
2051 /* go past the command */
2052 Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
2054 e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
2056 Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
2059 Jim_SetEmptyResult( goi.interp );
2061 case JTAG_CMD_INTERFACE:
2062 /* return the name of the interface */
2063 /* TCL code might need to know the exact type... */
2064 /* FUTURE: we allow this as a means to "set" the interface. */
2065 if( goi.argc != 0 ){
2066 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
2069 Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
2071 case JTAG_CMD_INIT_RESET:
2072 if( goi.argc != 0 ){
2073 Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
2076 e = jtag_init_reset(context);
2077 if( e != ERROR_OK ){
2078 Jim_SetResult_sprintf( goi.interp, "error: %d", e);
2082 case JTAG_CMD_NEWTAP:
2083 return jim_newtap_cmd( &goi );
2085 case JTAG_CMD_TAPISENABLED:
2086 case JTAG_CMD_TAPENABLE:
2087 case JTAG_CMD_TAPDISABLE:
2088 if( goi.argc != 1 ){
2089 Jim_SetResultString( goi.interp, "Too many parameters",-1 );
2095 t = jtag_TapByJimObj( goi.interp, goi.argv[0] );
2100 case JTAG_CMD_TAPISENABLED:
2103 case JTAG_CMD_TAPENABLE:
2104 jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE);
2108 case JTAG_CMD_TAPDISABLE:
2109 jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE);
2114 Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
2121 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ...");
2128 Jim_GetOpt_Obj(&goi, &o);
2129 t = jtag_TapByJimObj( goi.interp, o );
2134 goi.isconfigure = 0;
2135 return jtag_tap_configure_cmd( &goi, t);
2139 case JTAG_CMD_CONFIGURE:
2141 Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ...");
2148 Jim_GetOpt_Obj(&goi, &o);
2149 t = jtag_TapByJimObj( goi.interp, o );
2154 goi.isconfigure = 1;
2155 return jtag_tap_configure_cmd( &goi, t);
2162 int jtag_register_commands(struct command_context_s *cmd_ctx)
2164 register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
2166 register_command(cmd_ctx, NULL, "interface", handle_interface_command,
2167 COMMAND_CONFIG, "try to configure interface");
2168 register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
2169 COMMAND_ANY, "set jtag speed (if supported)");
2170 register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
2171 COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
2172 register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
2173 COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
2174 register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
2176 "[none/trst_only/srst_only/trst_and_srst] [srst_pulls_trst/trst_pulls_srst] [combined/separate] [trst_push_pull/trst_open_drain] [srst_push_pull/srst_open_drain]");
2177 register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
2178 COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
2179 register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
2180 COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
2182 register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
2183 COMMAND_EXEC, "print current scan chain configuration");
2185 register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
2186 COMMAND_EXEC, "finish JTAG operations in <tap_state>");
2187 register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
2188 COMMAND_EXEC, "toggle reset lines <trst> <srst>");
2189 register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
2190 COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
2191 register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
2192 COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
2193 register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
2195 register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
2196 COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
2200 int jtag_interface_init(struct command_context_s *cmd_ctx)
2205 if (!jtag_interface)
2207 /* nothing was previously specified by "interface" command */
2208 LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
2209 return ERROR_JTAG_INVALID_INTERFACE;
2213 jtag_interface->khz(speed_khz, &jtag_speed);
2217 if (jtag_interface->init() != ERROR_OK)
2218 return ERROR_JTAG_INIT_FAILED;
2220 jtag = jtag_interface;
2224 static int jtag_init_inner(struct command_context_s *cmd_ctx)
2229 LOG_DEBUG("Init JTAG chain");
2231 tap = jtag_NextEnabledTap(NULL);
2233 LOG_ERROR("There are no enabled taps?");
2234 return ERROR_JTAG_INIT_FAILED;
2238 if ((retval=jtag_execute_queue())!=ERROR_OK)
2241 /* examine chain first, as this could discover the real chain layout */
2242 if (jtag_examine_chain() != ERROR_OK)
2244 LOG_ERROR("trying to validate configured JTAG chain anyway...");
2247 if (jtag_validate_chain() != ERROR_OK)
2249 LOG_ERROR("Could not validate JTAG chain, continuing anyway...");
2255 int jtag_init_reset(struct command_context_s *cmd_ctx)
2259 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
2262 LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET");
2264 /* Reset can happen after a power cycle.
2266 * Ideally we would only assert TRST or run RESET before the target reset.
2268 * However w/srst_pulls_trst, trst is asserted together with the target
2269 * reset whether we want it or not.
2271 * NB! Some targets have JTAG circuitry disabled until a
2272 * trst & srst has been asserted.
2274 * NB! here we assume nsrst/ntrst delay are sufficient!
2276 * NB! order matters!!!! srst *can* disconnect JTAG circuitry
2279 jtag_add_reset(1, 0); /* RESET or TRST */
2280 if (jtag_reset_config & RESET_HAS_SRST)
2282 jtag_add_reset(1, 1);
2283 if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
2284 jtag_add_reset(0, 1);
2286 jtag_add_reset(0, 0);
2287 if ((retval = jtag_execute_queue()) != ERROR_OK)
2290 /* Check that we can communication on the JTAG chain + eventually we want to
2291 * be able to perform enumeration only after OpenOCD has started
2292 * telnet and GDB server
2294 * That would allow users to more easily perform any magic they need to before
2297 return jtag_init_inner(cmd_ctx);
2300 int jtag_init(struct command_context_s *cmd_ctx)
2303 if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
2305 if (jtag_init_inner(cmd_ctx)==ERROR_OK)
2309 return jtag_init_reset(cmd_ctx);
2312 static int default_khz(int khz, int *jtag_speed)
2314 LOG_ERROR("Translation from khz to jtag_speed not implemented");
2318 static int default_speed_div(int speed, int *khz)
2320 LOG_ERROR("Translation from jtag_speed to khz not implemented");
2324 static int default_power_dropout(int *dropout)
2326 *dropout=0; /* by default we can't detect power dropout */
2330 static int default_srst_asserted(int *srst_asserted)
2332 *srst_asserted=0; /* by default we can't detect srst asserted */
2336 int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2341 /* check whether the interface is already configured */
2344 LOG_WARNING("Interface already configured, ignoring");
2348 /* interface name is a mandatory argument */
2349 if (argc < 1 || args[0][0] == '\0')
2351 return ERROR_COMMAND_SYNTAX_ERROR;
2354 for (i=0; jtag_interfaces[i]; i++)
2356 if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
2358 if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
2363 jtag_interface = jtag_interfaces[i];
2365 if (jtag_interface->khz == NULL)
2367 jtag_interface->khz = default_khz;
2369 if (jtag_interface->speed_div == NULL)
2371 jtag_interface->speed_div = default_speed_div;
2373 if (jtag_interface->power_dropout == NULL)
2375 jtag_interface->power_dropout = default_power_dropout;
2377 if (jtag_interface->srst_asserted == NULL)
2379 jtag_interface->srst_asserted = default_srst_asserted;
2386 /* no valid interface was found (i.e. the configuration option,
2387 * didn't match one of the compiled-in interfaces
2389 LOG_ERROR("No valid jtag interface found (%s)", args[0]);
2390 LOG_ERROR("compiled-in jtag interfaces:");
2391 for (i = 0; jtag_interfaces[i]; i++)
2393 LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
2396 return ERROR_JTAG_INVALID_INTERFACE;
2399 int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2403 Jim_Obj *newargs[ 10 ];
2406 * argv[-1] = command
2407 * argv[ 0] = ir length
2408 * argv[ 1] = ir capture
2409 * argv[ 2] = ir mask
2410 * argv[ 3] = not actually used by anything but in the docs
2414 command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
2417 command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
2418 command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
2422 command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundryscan(len5)");
2423 command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
2424 command_print( cmd_ctx, "jtag newtap stm32 boundry ....., and the tap: \"stm32.boundery\"");
2425 command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
2427 newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
2428 newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
2429 sprintf( buf, "chip%d", jtag_NumTotalTaps() );
2430 newargs[2] = Jim_NewStringObj( interp, buf, -1 );
2431 sprintf( buf, "tap%d", jtag_NumTotalTaps() );
2432 newargs[3] = Jim_NewStringObj( interp, buf, -1 );
2433 newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
2434 newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
2435 newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
2436 newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
2437 newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
2438 newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
2440 command_print( cmd_ctx, "NEW COMMAND:");
2441 sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
2442 Jim_GetString( newargs[0], NULL ),
2443 Jim_GetString( newargs[1], NULL ),
2444 Jim_GetString( newargs[2], NULL ),
2445 Jim_GetString( newargs[3], NULL ),
2446 Jim_GetString( newargs[4], NULL ),
2447 Jim_GetString( newargs[5], NULL ),
2448 Jim_GetString( newargs[6], NULL ),
2449 Jim_GetString( newargs[7], NULL ),
2450 Jim_GetString( newargs[8], NULL ),
2451 Jim_GetString( newargs[9], NULL ) );
2453 e = jim_jtag_command( interp, 10, newargs );
2455 command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
2460 int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2464 tap = jtag_all_taps;
2465 command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
2466 command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
2469 u32 expected, expected_mask, cur_instr, ii;
2470 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
2471 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
2472 cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
2474 command_print(cmd_ctx,
2475 "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
2476 tap->abs_chain_position,
2478 tap->enabled ? 'Y' : 'n',
2480 (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
2486 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
2487 command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
2488 tap->expected_ids[ii]);
2491 tap = tap->next_tap;
2497 int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2500 return ERROR_COMMAND_SYNTAX_ERROR;
2504 if (strcmp(args[0], "none") == 0)
2505 jtag_reset_config = RESET_NONE;
2506 else if (strcmp(args[0], "trst_only") == 0)
2507 jtag_reset_config = RESET_HAS_TRST;
2508 else if (strcmp(args[0], "srst_only") == 0)
2509 jtag_reset_config = RESET_HAS_SRST;
2510 else if (strcmp(args[0], "trst_and_srst") == 0)
2511 jtag_reset_config = RESET_TRST_AND_SRST;
2514 LOG_ERROR("(1) invalid reset_config argument (%s), defaulting to none", args[0]);
2515 jtag_reset_config = RESET_NONE;
2516 return ERROR_INVALID_ARGUMENTS;
2522 if (strcmp(args[1], "separate") == 0)
2524 /* seperate reset lines - default */
2527 if (strcmp(args[1], "srst_pulls_trst") == 0)
2528 jtag_reset_config |= RESET_SRST_PULLS_TRST;
2529 else if (strcmp(args[1], "trst_pulls_srst") == 0)
2530 jtag_reset_config |= RESET_TRST_PULLS_SRST;
2531 else if (strcmp(args[1], "combined") == 0)
2532 jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
2535 LOG_ERROR("(2) invalid reset_config argument (%s), defaulting to none", args[1]);
2536 jtag_reset_config = RESET_NONE;
2537 return ERROR_INVALID_ARGUMENTS;
2544 if (strcmp(args[2], "trst_open_drain") == 0)
2545 jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
2546 else if (strcmp(args[2], "trst_push_pull") == 0)
2547 jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
2550 LOG_ERROR("(3) invalid reset_config argument (%s) defaulting to none", args[2] );
2551 jtag_reset_config = RESET_NONE;
2552 return ERROR_INVALID_ARGUMENTS;
2558 if (strcmp(args[3], "srst_push_pull") == 0)
2559 jtag_reset_config |= RESET_SRST_PUSH_PULL;
2560 else if (strcmp(args[3], "srst_open_drain") == 0)
2561 jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
2564 LOG_ERROR("(4) invalid reset_config argument (%s), defaulting to none", args[3]);
2565 jtag_reset_config = RESET_NONE;
2566 return ERROR_INVALID_ARGUMENTS;
2573 int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2577 LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
2582 jtag_nsrst_delay = strtoul(args[0], NULL, 0);
2588 int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2592 LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
2597 jtag_ntrst_delay = strtoul(args[0], NULL, 0);
2603 int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2605 int retval=ERROR_OK;
2609 LOG_DEBUG("handle jtag speed");
2612 cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
2614 /* this command can be called during CONFIG,
2615 * in which case jtag isn't initialized */
2618 retval=jtag->speed(cur_speed);
2620 } else if (argc == 0)
2624 return ERROR_COMMAND_SYNTAX_ERROR;
2626 command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
2631 int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2633 int retval=ERROR_OK;
2634 LOG_DEBUG("handle jtag khz");
2638 speed_khz = strtoul(args[0], NULL, 0);
2642 LOG_DEBUG("have interface set up");
2644 if ((retval=jtag->khz(speed_khz, &speed_div1))!=ERROR_OK)
2650 cur_speed = jtag_speed = speed_div1;
2652 retval=jtag->speed(cur_speed);
2661 return ERROR_COMMAND_SYNTAX_ERROR;
2666 if ((retval=jtag->speed_div(jtag_speed, &speed_khz))!=ERROR_OK)
2672 command_print(cmd_ctx, "RCLK - adaptive");
2675 command_print(cmd_ctx, "%d kHz", speed_khz);
2681 int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2683 enum tap_state state;
2687 return ERROR_COMMAND_SYNTAX_ERROR;
2691 for (state = 0; state < 16; state++)
2693 if (strcmp(args[0], jtag_state_name(state)) == 0)
2695 jtag_add_end_state(state);
2696 jtag_execute_queue();
2700 command_print(cmd_ctx, "current endstate: %s", jtag_state_name(cmd_queue_end_state));
2705 int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2712 return ERROR_COMMAND_SYNTAX_ERROR;
2715 if (args[0][0] == '1')
2717 else if (args[0][0] == '0')
2721 return ERROR_COMMAND_SYNTAX_ERROR;
2724 if (args[1][0] == '1')
2726 else if (args[1][0] == '0')
2730 return ERROR_COMMAND_SYNTAX_ERROR;
2733 if (jtag_interface_init(cmd_ctx) != ERROR_OK)
2734 return ERROR_JTAG_INIT_FAILED;
2736 jtag_add_reset(trst, srst);
2737 jtag_execute_queue();
2742 int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2746 return ERROR_COMMAND_SYNTAX_ERROR;
2749 jtag_add_runtest(strtol(args[0], NULL, 0), -1);
2750 jtag_execute_queue();
2756 int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2759 scan_field_t *fields;
2762 if ((argc < 2) || (argc % 2))
2764 return ERROR_COMMAND_SYNTAX_ERROR;
2767 fields = malloc(sizeof(scan_field_t) * argc / 2);
2769 for (i = 0; i < argc / 2; i++)
2771 tap = jtag_TapByString( args[i*2] );
2774 command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
2777 int field_size = tap->ir_length;
2778 fields[i].tap = tap;
2779 fields[i].out_value = malloc(CEIL(field_size, 8));
2780 buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
2781 fields[i].out_mask = NULL;
2782 fields[i].in_value = NULL;
2783 fields[i].in_check_mask = NULL;
2784 fields[i].in_handler = NULL;
2785 fields[i].in_handler_priv = NULL;
2788 jtag_add_ir_scan(argc / 2, fields, -1);
2789 jtag_execute_queue();
2791 for (i = 0; i < argc / 2; i++)
2792 free(fields[i].out_value);
2799 int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
2802 scan_field_t *fields;
2804 int field_count = 0;
2809 * args[2] = num_bits
2810 * args[3] = hex string
2811 * ... repeat num bits and hex string ...
2813 if ((argc < 4) || ((argc % 2)!=0))
2815 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
2819 for (i = 2; i < argc; i+=2)
2823 e = Jim_GetLong(interp, args[i], &bits);
2828 tap = jtag_TapByJimObj( interp, args[1] );
2833 num_fields=(argc-2)/2;
2834 fields = malloc(sizeof(scan_field_t) * num_fields);
2835 for (i = 2; i < argc; i+=2)
2841 Jim_GetLong(interp, args[i], &bits);
2842 str = Jim_GetString(args[i+1], &len);
2844 fields[field_count].tap = tap;
2845 fields[field_count].num_bits = bits;
2846 fields[field_count].out_value = malloc(CEIL(bits, 8));
2847 str_to_buf(str, len, fields[field_count].out_value, bits, 0);
2848 fields[field_count].out_mask = NULL;
2849 fields[field_count].in_value = fields[field_count].out_value;
2850 fields[field_count].in_check_mask = NULL;
2851 fields[field_count].in_check_value = NULL;
2852 fields[field_count].in_handler = NULL;
2853 fields[field_count++].in_handler_priv = NULL;
2856 jtag_add_dr_scan(num_fields, fields, -1);
2857 retval = jtag_execute_queue();
2858 if (retval != ERROR_OK)
2860 Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
2865 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
2866 for (i = 2; i < argc; i+=2)
2871 Jim_GetLong(interp, args[i], &bits);
2872 str = buf_to_str(fields[field_count].in_value, bits, 16);
2873 free(fields[field_count].out_value);
2875 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
2880 Jim_SetResult(interp, list);
2887 int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2891 if (strcmp(args[0], "enable") == 0)
2893 jtag_verify_capture_ir = 1;
2895 else if (strcmp(args[0], "disable") == 0)
2897 jtag_verify_capture_ir = 0;
2900 return ERROR_COMMAND_SYNTAX_ERROR;
2902 } else if (argc != 0)
2904 return ERROR_COMMAND_SYNTAX_ERROR;
2907 command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
2912 int jtag_power_dropout(int *dropout)
2914 return jtag->power_dropout(dropout);
2917 int jtag_srst_asserted(int *srst_asserted)
2919 return jtag->srst_asserted(srst_asserted);
2922 void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
2924 jtag_tap_event_action_t * jteap;
2927 jteap = tap->event_action;
2931 if (jteap->event == e) {
2933 LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
2936 Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
2937 Jim_GetString(jteap->body, NULL) );
2938 if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
2939 Jim_PrintErrorMessage(interp);
2943 jteap = jteap->next;
2947 LOG_DEBUG( "event %d %s - no action",
2949 Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
2954 /* map state number to SVF state string */
2955 const char* jtag_state_name(enum tap_state state)
2961 case TAP_RESET: ret = "RESET"; break;
2962 case TAP_IDLE: ret = "IDLE"; break;
2963 case TAP_DRSELECT: ret = "DRSELECT"; break;
2964 case TAP_DRCAPTURE: ret = "DRCAPTURE"; break;
2965 case TAP_DRSHIFT: ret = "DRSHIFT"; break;
2966 case TAP_DREXIT1: ret = "DREXIT1"; break;
2967 case TAP_DRPAUSE: ret = "DRPAUSE"; break;
2968 case TAP_DREXIT2: ret = "DREXIT2"; break;
2969 case TAP_DRUPDATE: ret = "DRUPDATE"; break;
2970 case TAP_IRSELECT: ret = "IRSELECT"; break;
2971 case TAP_IRCAPTURE: ret = "IRCAPTURE"; break;
2972 case TAP_IRSHIFT: ret = "IRSHIFT"; break;
2973 case TAP_IREXIT1: ret = "IREXIT1"; break;
2974 case TAP_IRPAUSE: ret = "IRPAUSE"; break;
2975 case TAP_IREXIT2: ret = "IREXIT2"; break;
2976 case TAP_IRUPDATE: ret = "IRUPDATE"; break;
2977 default: ret = "???";