1 /***************************************************************************
2 * Copyright (C) 2007 by Benedikt Sauter sauter@ixbat.de *
3 * based on Dominic Rath's amt_jtagaccel.c *
5 * usbprog is a free programming adapter. You can easily install *
6 * different firmware versions from an "online pool" over USB. *
7 * The adapter can be used for programming and debugging AVR and ARM *
8 * processors, as USB to RS232 converter, as JTAG interface or as *
9 * simple I/O interface (5 lines). *
11 * http://www.embedded-projects.net/usbprog *
13 * This program is free software; you can redistribute it and/or modify *
14 * it under the terms of the GNU General Public License as published by *
15 * the Free Software Foundation; either version 2 of the License, or *
16 * (at your option) any later version. *
18 * This program is distributed in the hope that it will be useful, *
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
21 * GNU General Public License for more details. *
23 * You should have received a copy of the GNU General Public License *
24 * along with this program; if not, write to the *
25 * Free Software Foundation, Inc., *
26 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
27 ***************************************************************************/
33 #include "replacements.h"
51 int usbprog_execute_queue(void);
52 int usbprog_speed(int speed
);
53 int usbprog_register_commands(struct command_context_s
*cmd_ctx
);
54 int usbprog_init(void);
55 int usbprog_quit(void);
58 void usbprog_end_state(enum tap_state state
);
59 void usbprog_state_move(void);
60 void usbprog_path_move(pathmove_command_t
*cmd
);
61 void usbprog_runtest(int num_cycles
);
62 void usbprog_scan(int ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
);
64 jtag_interface_t usbprog_interface
=
67 .execute_queue
= usbprog_execute_queue
,
68 .support_pathmove
= 0,
69 .speed
= usbprog_speed
,
70 .register_commands
= usbprog_register_commands
,
75 #define UNKOWN_COMMAND 0x00
76 #define PORT_DIRECTION 0x01
79 #define PORT_SETBIT 0x04
80 #define PORT_GETBIT 0x05
81 #define WRITE_TDI 0x06
83 #define WRITE_AND_READ 0x08
84 #define WRITE_TMS 0x09
85 #define WRITE_TMS_CHAIN 0x0A
89 struct usb_dev_handle
* usb_handle
;
92 struct usbprog_jtag
* usbprog_jtag_handle
;
94 struct usbprog_jtag
* usbprog_jtag_open();
95 void usbprog_jtag_close(struct usbprog_jtag
*usbprog_jtag
);
96 void usbprog_jtag_init(struct usbprog_jtag
*usbprog_jtag
);
97 unsigned char usbprog_jtag_message(struct usbprog_jtag
*usbprog_jtag
, char *msg
, int msglen
);
100 void usbprog_jtag_read_tdo(struct usbprog_jtag
*usbprog_jtag
, char * buffer
, int size
);
101 void usbprog_jtag_write_tdi(struct usbprog_jtag
*usbprog_jtag
, char * buffer
, int size
);
102 void usbprog_jtag_write_and_read(struct usbprog_jtag
*usbprog_jtag
, char * buffer
, int size
);
103 void usbprog_jtag_write_tms(struct usbprog_jtag
*usbprog_jtag
, char tms_scan
);
107 void usbprog_jtag_tms_collect(char tms_scan
);
108 void usbprog_jtag_tms_send(struct usbprog_jtag
*usbprog_jtag
);
110 void usbprog_write(int tck
, int tms
, int tdi
);
111 void usbprog_reset(int trst
, int srst
);
113 void usbprog_jtag_set_direction(struct usbprog_jtag
*usbprog_jtag
, unsigned char direction
);
114 void usbprog_jtag_write_slice(struct usbprog_jtag
*usbprog_jtag
,unsigned char value
);
115 unsigned char usbprog_jtag_get_port(struct usbprog_jtag
*usbprog_jtag
);
116 void usbprog_jtag_set_bit(struct usbprog_jtag
*usbprog_jtag
,int bit
, int value
);
117 int usbprog_jtag_get_bit(struct usbprog_jtag
*usbprog_jtag
, int bit
);
119 int usbprog_speed(int speed
)
124 int usbprog_register_commands(struct command_context_s
*cmd_ctx
)
130 int usbprog_execute_queue(void)
132 jtag_command_t
*cmd
= jtag_command_queue
; /* currently processed command */
142 #ifdef _DEBUG_JTAG_IO_
143 DEBUG("end_state: %i", cmd
->cmd
.end_state
->end_state
);
145 if (cmd
->cmd
.end_state
->end_state
!= -1)
146 usbprog_end_state(cmd
->cmd
.end_state
->end_state
);
149 #ifdef _DEBUG_JTAG_IO_
150 DEBUG("reset trst: %i srst %i", cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
152 if (cmd
->cmd
.reset
->trst
== 1)
156 usbprog_reset(cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
159 #ifdef _DEBUG_JTAG_IO_
160 DEBUG("runtest %i cycles, end in %i", cmd
->cmd
.runtest
->num_cycles
, cmd
->cmd
.runtest
->end_state
);
162 if (cmd
->cmd
.runtest
->end_state
!= -1)
163 usbprog_end_state(cmd
->cmd
.runtest
->end_state
);
164 usbprog_runtest(cmd
->cmd
.runtest
->num_cycles
);
167 #ifdef _DEBUG_JTAG_IO_
168 DEBUG("statemove end in %i", cmd
->cmd
.statemove
->end_state
);
170 if (cmd
->cmd
.statemove
->end_state
!= -1)
171 usbprog_end_state(cmd
->cmd
.statemove
->end_state
);
172 usbprog_state_move();
175 #ifdef _DEBUG_JTAG_IO_
176 DEBUG("pathmove: %i states, end in %i", cmd
->cmd
.pathmove
->num_states
,
177 cmd
->cmd
.pathmove
->path
[cmd
->cmd
.pathmove
->num_states
- 1]);
179 usbprog_path_move(cmd
->cmd
.pathmove
);
182 #ifdef _DEBUG_JTAG_IO_
183 DEBUG("scan end in %i", cmd
->cmd
.scan
->end_state
);
185 if (cmd
->cmd
.scan
->end_state
!= -1)
186 usbprog_end_state(cmd
->cmd
.scan
->end_state
);
187 scan_size
= jtag_build_buffer(cmd
->cmd
.scan
, &buffer
);
188 type
= jtag_scan_type(cmd
->cmd
.scan
);
189 usbprog_scan(cmd
->cmd
.scan
->ir_scan
, type
, buffer
, scan_size
);
190 if (jtag_read_buffer(buffer
, cmd
->cmd
.scan
) != ERROR_OK
)
191 return ERROR_JTAG_QUEUE_FAILED
;
196 #ifdef _DEBUG_JTAG_IO_
197 DEBUG("sleep %i", cmd
->cmd
.sleep
->us
);
199 jtag_sleep(cmd
->cmd
.sleep
->us
);
202 ERROR("BUG: unknown JTAG command type encountered");
212 int usbprog_init(void)
214 usbprog_jtag_handle
= usbprog_jtag_open();
217 if(usbprog_jtag_handle
==0){
218 ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
219 return ERROR_JTAG_INIT_FAILED
;
222 INFO("USB JTAG Interface ready!");
224 usbprog_jtag_init(usbprog_jtag_handle
);
226 usbprog_write(0, 0, 0);
231 int usbprog_quit(void)
237 /*************** jtag execute commands **********************/
238 void usbprog_end_state(enum tap_state state
)
240 if (tap_move_map
[state
] != -1)
244 ERROR("BUG: %i is not a valid end state", state
);
250 void usbprog_state_move(void) {
253 u8 tms_scan
= TAP_MOVE(cur_state
, end_state
);
255 usbprog_jtag_write_tms(usbprog_jtag_handle
,(char)tms_scan
);
256 for (i
= 0; i
< 7; i
++)
258 tms
= (tms_scan
>> i
) & 1;
261 cur_state
= end_state
;
265 void usbprog_path_move(pathmove_command_t
*cmd
)
267 int num_states
= cmd
->num_states
;
273 if (tap_transitions
[cur_state
].low
== cmd
->path
[state_count
])
276 usbprog_write(0, 0, 0);
277 usbprog_write(1, 0, 0);
279 else if (tap_transitions
[cur_state
].high
== cmd
->path
[state_count
])
282 usbprog_write(0, 1, 0);
283 usbprog_write(1, 1, 0);
287 ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings
[cur_state
], tap_state_strings
[cmd
->path
[state_count
]]);
291 cur_state
= cmd
->path
[state_count
];
296 end_state
= cur_state
;
300 void usbprog_runtest(int num_cycles
)
304 enum tap_state saved_end_state
= end_state
;
307 /* only do a state_move when we're not already in RTI */
308 if (cur_state
!= TAP_RTI
)
310 usbprog_end_state(TAP_RTI
);
311 usbprog_state_move();
314 /* execute num_cycles */
317 usbprog_jtag_tms_send(usbprog_jtag_handle
);
318 usbprog_write(0, 0, 0);
321 usbprog_jtag_tms_send(usbprog_jtag_handle
);
322 //INFO("NUM CYCLES %i",num_cycles);
325 for (i
= 0; i
< num_cycles
; i
++)
327 usbprog_write(1, 0, 0);
328 usbprog_write(0, 0, 0);
331 /* finish in end_state */
333 usbprog_end_state(saved_end_state);
334 if (cur_state != end_state)
335 usbprog_state_move();
341 void usbprog_scan(int ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
)
343 enum tap_state saved_end_state
= end_state
;
347 usbprog_end_state(TAP_SI
);
349 usbprog_end_state(TAP_SD
);
351 //usbprog_jtag_tms_send(usbprog_jtag_handle);
353 usbprog_state_move();
354 usbprog_end_state(saved_end_state
);
356 usbprog_jtag_tms_send(usbprog_jtag_handle
);
358 if (type
== SCAN_OUT
) {
359 usbprog_jtag_write_tdi(usbprog_jtag_handle
,buffer
, scan_size
);
361 if (type
== SCAN_IN
) {
362 usbprog_jtag_read_tdo(usbprog_jtag_handle
,buffer
, scan_size
);
364 if (type
== SCAN_IO
) {
365 usbprog_jtag_write_and_read(usbprog_jtag_handle
,buffer
, scan_size
);
373 if (cur_state
!= end_state
)
374 usbprog_state_move();
377 /*************** jtag wrapper functions *********************/
379 void usbprog_write(int tck
, int tms
, int tdi
)
381 unsigned char output_value
=0x00;
384 output_value
|= (1<<TMS_BIT
);
386 output_value
|= (1<<TDI_BIT
);
388 output_value
|= (1<<TCK_BIT
);
390 usbprog_jtag_write_slice(usbprog_jtag_handle
,output_value
);
393 /* (1) assert or (0) deassert reset lines */
394 void usbprog_reset(int trst
, int srst
)
396 DEBUG("trst: %i, srst: %i", trst
, srst
);
399 usbprog_jtag_set_bit(usbprog_jtag_handle
,5,0);
401 usbprog_jtag_set_bit(usbprog_jtag_handle
,5,1);
404 usbprog_jtag_set_bit(usbprog_jtag_handle
,4,0);
406 usbprog_jtag_set_bit(usbprog_jtag_handle
,4,1);
411 /*************** jtag lowlevel functions ********************/
414 struct usb_bus
*busses
;
415 struct usbprog_jtag
* usbprog_jtag_open()
417 struct usb_dev_handle
* usb_handle
;
419 struct usb_device
*dev
;
421 struct usbprog_jtag
* tmp
;
423 tmp
= (struct usbprog_jtag
*)malloc(sizeof(struct usbprog_jtag
));
431 busses
= usb_get_busses();
433 /* find usbprog_jtag device in usb bus */
435 for (bus
= busses
; bus
; bus
= bus
->next
){
436 for (dev
= bus
->devices
; dev
; dev
= dev
->next
){
437 /* condition for sucessfully hit (too bad, I only check the vendor id)*/
438 if (dev
->descriptor
.idVendor
== VID
&& dev
->descriptor
.idProduct
== PID
) {
439 tmp
->usb_handle
= usb_open(dev
);
440 usb_set_configuration (tmp
->usb_handle
,1);
441 usb_claim_interface(tmp
->usb_handle
, 0);
442 usb_set_altinterface(tmp
->usb_handle
,0);
451 void usbprog_jtag_close(struct usbprog_jtag
*usbprog_jtag
)
453 usb_close(usbprog_jtag
->usb_handle
);
458 unsigned char usbprog_jtag_message(struct usbprog_jtag
*usbprog_jtag
, char *msg
, int msglen
)
460 int res
= usb_bulk_write(usbprog_jtag
->usb_handle
,3,msg
,msglen
,100);
461 if(msg
[0]==2||msg
[0]==1||msg
[0]==4||msg
[0]==0||msg
[0]==6||msg
[0]==0x0A||msg
[0]==9)
464 //INFO("HALLLLOOO %i",(int)msg[0]);
465 res
= usb_bulk_read(usbprog_jtag
->usb_handle
,0x82, msg
, 2, 100);
467 return (unsigned char)msg
[1];
476 void usbprog_jtag_init(struct usbprog_jtag
*usbprog_jtag
)
478 usbprog_jtag_set_direction(usbprog_jtag
, 0xFE);
482 void usbprog_jtag_write_and_read(struct usbprog_jtag
*usbprog_jtag
, char * buffer
, int size
)
484 char tmp
[64]; // fastes packet size for usb controller
485 int send_bits
,bufindex
=0,fillindex
=0,i
,j
,complete
=size
,loops
;
488 // 61 byte can be transfered (488 bit)
501 tmp
[0] = WRITE_AND_READ
;
502 tmp
[1] = (char)(send_bits
>>8); // high
503 tmp
[2] = (char)(send_bits
); // low
506 for(i
=0;i
< loops
;i
++) {
507 tmp
[3+i
]=buffer
[bufindex
];
511 if(usb_bulk_write(usbprog_jtag
->usb_handle
,3,tmp
,64,1000)==64)
513 //INFO("HALLLLOOO2 %i",(int)tmp[0]);
516 while(usb_bulk_read(usbprog_jtag
->usb_handle
,0x82, tmp
, 64, 1000) < 1){
522 for(i
=0;i
<loops
;i
++) {
524 buffer
[fillindex
++] = swap
;
531 void usbprog_jtag_read_tdo(struct usbprog_jtag
*usbprog_jtag
, char * buffer
, int size
)
533 char tmp
[64]; // fastes packet size for usb controller
534 int send_bits
,bufindex
=0,fillindex
=0,i
,j
,complete
=size
,loops
;
537 // 61 byte can be transfered (488 bit)
550 tmp
[0] = WRITE_AND_READ
;
551 tmp
[1] = (char)(send_bits
>>8); // high
552 tmp
[2] = (char)(send_bits
); // low
554 usb_bulk_write(usbprog_jtag
->usb_handle
,3,tmp
,3,1000);
556 //INFO("HALLLLOOO3 %i",(int)tmp[0]);
559 while(usb_bulk_read(usbprog_jtag
->usb_handle
,0x82, tmp
, 64, 10) < 1){
565 for(i
=0;i
<loops
;i
++) {
567 buffer
[fillindex
++] = swap
;
572 void usbprog_jtag_write_tdi(struct usbprog_jtag
*usbprog_jtag
, char * buffer
, int size
)
574 char tmp
[64]; // fastes packet size for usb controller
575 int send_bits
,bufindex
=0,fillindex
=0,i
,j
,complete
=size
,loops
;
577 // 61 byte can be transfered (488 bit)
591 tmp
[1] = (char)(send_bits
>>8); // high
592 tmp
[2] = (char)(send_bits
); // low
595 for(i
=0;i
< loops
;i
++) {
596 tmp
[3+i
]=buffer
[bufindex
];
599 usb_bulk_write(usbprog_jtag
->usb_handle
,3,tmp
,64,1000);
604 void usbprog_jtag_write_tms(struct usbprog_jtag
*usbprog_jtag
, char tms_scan
)
606 usbprog_jtag_tms_collect(tms_scan
);
610 void usbprog_jtag_set_direction(struct usbprog_jtag
*usbprog_jtag
, unsigned char direction
)
613 tmp
[0] = PORT_DIRECTION
;
614 tmp
[1] = (char)direction
;
615 usbprog_jtag_message(usbprog_jtag
,tmp
,2);
618 void usbprog_jtag_write_slice(struct usbprog_jtag
*usbprog_jtag
,unsigned char value
)
622 tmp
[1] = (char)value
;
623 usbprog_jtag_message(usbprog_jtag
,tmp
,2);
626 unsigned char usbprog_jtag_get_port(struct usbprog_jtag
*usbprog_jtag
)
631 return usbprog_jtag_message(usbprog_jtag
,tmp
,2);
635 void usbprog_jtag_set_bit(struct usbprog_jtag
*usbprog_jtag
,int bit
, int value
)
638 tmp
[0] = PORT_SETBIT
;
644 usbprog_jtag_message(usbprog_jtag
,tmp
,3);
647 int usbprog_jtag_get_bit(struct usbprog_jtag
*usbprog_jtag
, int bit
)
650 tmp
[0] = PORT_GETBIT
;
653 if(usbprog_jtag_message(usbprog_jtag
,tmp
,2)>0)
659 void usbprog_jtag_tms_collect(char tms_scan
){
660 tms_chain
[tms_chain_index
]=tms_scan
;
664 void usbprog_jtag_tms_send(struct usbprog_jtag
*usbprog_jtag
){
667 if(tms_chain_index
>0) {
668 char tmp
[tms_chain_index
+2];
669 tmp
[0] = WRITE_TMS_CHAIN
;
670 tmp
[1] = (char)(tms_chain_index
);
671 for(i
=0;i
<tms_chain_index
+1;i
++)
672 tmp
[2+i
] = tms_chain
[i
];
673 usb_bulk_write(usbprog_jtag
->usb_handle
,3,tmp
,tms_chain_index
+2,1000);
Linking to existing account procedure
If you already have an account and want to add another login method
you
MUST first sign in with your existing account and
then change URL to read
https://review.openocd.org/login/?link
to get to this page again but this time it'll work for linking. Thank you.
SSH host keys fingerprints
1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=.. |
|+o.. . |
|*.o . . |
|+B . . . |
|Bo. = o S |
|Oo.+ + = |
|oB=.* = . o |
| =+=.+ + E |
|. .=o . o |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)