1 /***************************************************************************
3 * Copyright (C) 2009 by Cahya Wirawan <cahya@gmx.at> *
4 * Based on opendous driver by Vladimir Fonov *
6 * Copyright (C) 2009 by Vladimir Fonov <vladimir.fonov@gmai.com> *
7 * Based on J-link driver by Juergen Stuber *
9 * Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net> *
10 * based on Dominic Rath's and Benedikt Sauter's usbprog.c *
12 * Copyright (C) 2008 by Spencer Oliver *
13 * spen@spen-soft.co.uk *
15 * This program is free software; you can redistribute it and/or modify *
16 * it under the terms of the GNU General Public License as published by *
17 * the Free Software Foundation; either version 2 of the License, or *
18 * (at your option) any later version. *
20 * This program is distributed in the hope that it will be useful, *
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
23 * GNU General Public License for more details. *
25 * You should have received a copy of the GNU General Public License *
26 * along with this program; if not, write to the *
27 * Free Software Foundation, Inc., *
28 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
29 ***************************************************************************/
35 #include <jtag/interface.h>
36 #include <jtag/commands.h>
37 #include "libusb_common.h"
39 #include <sys/timeb.h>
42 #define OPENDOUS_MAX_VIDS_PIDS 4
43 /* define some probes with similar interface */
44 struct opendous_probe
{
46 uint16_t VID
[OPENDOUS_MAX_VIDS_PIDS
];
47 uint16_t PID
[OPENDOUS_MAX_VIDS_PIDS
];
50 uint8_t CONTROL_TRANSFER
;
54 static struct opendous_probe opendous_probes
[] = {
55 {"usbprog-jtag", {0x1781, 0}, {0x0C63, 0}, 0x82, 0x02, 0x00, 510 },
56 {"opendous", {0x1781, 0x03EB, 0}, {0xC0C0, 0x204F, 0}, 0x81, 0x02, 0x00, 360 },
57 {"usbvlab", {0x16C0, 0}, {0x05DC, 0}, 0x81, 0x02, 0x01, 360 },
58 {NULL
, {0x0000}, {0x0000}, 0x00, 0x00, 0x00, 0 }
61 #define OPENDOUS_WRITE_ENDPOINT (opendous_probe->WRITE_EP)
62 #define OPENDOUS_READ_ENDPOINT (opendous_probe->READ_EP)
64 static unsigned int opendous_hw_jtag_version
= 1;
66 #define OPENDOUS_USB_TIMEOUT 1000
68 #define OPENDOUS_USB_BUFFER_SIZE (opendous_probe->BUFFERSIZE)
69 #define OPENDOUS_IN_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
70 #define OPENDOUS_OUT_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
72 /* Global USB buffers */
73 static uint8_t *usb_in_buffer
;
74 static uint8_t *usb_out_buffer
;
76 /* Constants for OPENDOUS command */
78 #define OPENDOUS_MAX_SPEED 66
79 #define OPENDOUS_MAX_TAP_TRANSMIT ((opendous_probe->BUFFERSIZE)-10)
80 #define OPENDOUS_MAX_INPUT_DATA (OPENDOUS_MAX_TAP_TRANSMIT*4)
83 #define OPENDOUS_TAP_BUFFER_SIZE 65536
85 struct pending_scan_result
{
86 int first
; /* First bit position in tdo_buffer to read */
87 int length
; /* Number of bits to read */
88 struct scan_command
*command
; /* Corresponding scan command */
92 static int pending_scan_results_length
;
93 static struct pending_scan_result
*pending_scan_results_buffer
;
95 #define MAX_PENDING_SCAN_RESULTS (OPENDOUS_MAX_INPUT_DATA)
97 /* JTAG usb commands */
98 #define JTAG_CMD_TAP_OUTPUT 0x0
99 #define JTAG_CMD_SET_TRST 0x1
100 #define JTAG_CMD_SET_SRST 0x2
101 #define JTAG_CMD_READ_INPUT 0x3
102 #define JTAG_CMD_TAP_OUTPUT_EMU 0x4
103 #define JTAG_CMD_SET_DELAY 0x5
104 #define JTAG_CMD_SET_SRST_TRST 0x6
105 #define JTAG_CMD_READ_CONFIG 0x7
107 /* usbvlab control transfer */
108 #define FUNC_START_BOOTLOADER 30
109 #define FUNC_WRITE_DATA 0x50
110 #define FUNC_READ_DATA 0x51
112 static char *opendous_type
;
113 static struct opendous_probe
*opendous_probe
;
115 /* External interface functions */
116 static int opendous_execute_queue(void);
117 static int opendous_init(void);
118 static int opendous_quit(void);
120 /* Queue command functions */
121 static void opendous_end_state(tap_state_t state
);
122 static void opendous_state_move(void);
123 static void opendous_path_move(int num_states
, tap_state_t
*path
);
124 static void opendous_runtest(int num_cycles
);
125 static void opendous_scan(int ir_scan
, enum scan_type type
, uint8_t *buffer
,
126 int scan_size
, struct scan_command
*command
);
127 static void opendous_reset(int trst
, int srst
);
128 static void opendous_simple_command(uint8_t command
, uint8_t _data
);
129 static int opendous_get_status(void);
131 /* opendous tap buffer functions */
132 static void opendous_tap_init(void);
133 static int opendous_tap_execute(void);
134 static void opendous_tap_ensure_space(int scans
, int bits
);
135 static void opendous_tap_append_step(int tms
, int tdi
);
136 static void opendous_tap_append_scan(int length
, uint8_t *buffer
, struct scan_command
*command
);
138 /* opendous lowlevel functions */
139 struct opendous_jtag
{
140 struct jtag_libusb_device_handle
*usb_handle
;
143 static struct opendous_jtag
*opendous_usb_open(void);
144 static void opendous_usb_close(struct opendous_jtag
*opendous_jtag
);
145 static int opendous_usb_message(struct opendous_jtag
*opendous_jtag
, int out_length
, int in_length
);
146 static int opendous_usb_write(struct opendous_jtag
*opendous_jtag
, int out_length
);
147 static int opendous_usb_read(struct opendous_jtag
*opendous_jtag
);
149 /* helper functions */
150 int opendous_get_version_info(void);
152 #ifdef _DEBUG_USB_COMMS_
154 static void opendous_debug_buffer(uint8_t *buffer
, int length
);
155 char *opendous_get_time(char *);
158 static struct opendous_jtag
*opendous_jtag_handle
;
160 /***************************************************************************/
161 /* External interface implementation */
163 COMMAND_HANDLER(opendous_handle_opendous_type_command
)
168 /* only if the cable name wasn't overwritten by cmdline */
169 if (opendous_type
== NULL
) {
170 /* REVISIT first verify that it's listed in cables[] ... */
171 opendous_type
= strdup(CMD_ARGV
[0]);
174 /* REVISIT it's probably worth returning the current value ... */
179 COMMAND_HANDLER(opendous_handle_opendous_info_command
)
181 if (opendous_get_version_info() == ERROR_OK
) {
182 /* attempt to get status */
183 opendous_get_status();
189 COMMAND_HANDLER(opendous_handle_opendous_hw_jtag_command
)
193 command_print(CMD_CTX
, "opendous hw jtag %i", opendous_hw_jtag_version
);
197 int request_version
= atoi(CMD_ARGV
[0]);
198 switch (request_version
) {
201 opendous_hw_jtag_version
= request_version
;
205 return ERROR_COMMAND_SYNTAX_ERROR
;
211 return ERROR_COMMAND_SYNTAX_ERROR
;
217 static const struct command_registration opendous_command_handlers
[] = {
219 .name
= "opendous_info",
220 .handler
= &opendous_handle_opendous_info_command
,
221 .mode
= COMMAND_EXEC
,
222 .help
= "show opendous info",
225 .name
= "opendous_hw_jtag",
226 .handler
= &opendous_handle_opendous_hw_jtag_command
,
227 .mode
= COMMAND_EXEC
,
228 .help
= "access opendous HW JTAG command version",
232 .name
= "opendous_type",
233 .handler
= &opendous_handle_opendous_type_command
,
234 .mode
= COMMAND_CONFIG
,
235 .help
= "set opendous type",
236 .usage
= "[usbvlab|usbprog-jtag|opendous]",
238 COMMAND_REGISTRATION_DONE
241 struct jtag_interface opendous_interface
= {
243 .commands
= opendous_command_handlers
,
244 .execute_queue
= opendous_execute_queue
,
245 .init
= opendous_init
,
246 .quit
= opendous_quit
,
249 static int opendous_execute_queue(void)
251 struct jtag_command
*cmd
= jtag_command_queue
;
256 while (cmd
!= NULL
) {
259 DEBUG_JTAG_IO("runtest %i cycles, end in %i", cmd
->cmd
.runtest
->num_cycles
, \
260 cmd
->cmd
.runtest
->end_state
);
262 if (cmd
->cmd
.runtest
->end_state
!= -1)
263 opendous_end_state(cmd
->cmd
.runtest
->end_state
);
264 opendous_runtest(cmd
->cmd
.runtest
->num_cycles
);
268 DEBUG_JTAG_IO("statemove end in %i", cmd
->cmd
.statemove
->end_state
);
270 if (cmd
->cmd
.statemove
->end_state
!= -1)
271 opendous_end_state(cmd
->cmd
.statemove
->end_state
);
272 opendous_state_move();
276 DEBUG_JTAG_IO("pathmove: %i states, end in %i", \
277 cmd
->cmd
.pathmove
->num_states
, \
278 cmd
->cmd
.pathmove
->path
[cmd
->cmd
.pathmove
->num_states
- 1]);
280 opendous_path_move(cmd
->cmd
.pathmove
->num_states
, cmd
->cmd
.pathmove
->path
);
284 DEBUG_JTAG_IO("scan end in %i", cmd
->cmd
.scan
->end_state
);
286 if (cmd
->cmd
.scan
->end_state
!= -1)
287 opendous_end_state(cmd
->cmd
.scan
->end_state
);
289 scan_size
= jtag_build_buffer(cmd
->cmd
.scan
, &buffer
);
290 DEBUG_JTAG_IO("scan input, length = %d", scan_size
);
292 #ifdef _DEBUG_USB_COMMS_
293 opendous_debug_buffer(buffer
, (scan_size
+ 7) / 8);
295 type
= jtag_scan_type(cmd
->cmd
.scan
);
296 opendous_scan(cmd
->cmd
.scan
->ir_scan
, type
, buffer
, scan_size
, cmd
->cmd
.scan
);
300 DEBUG_JTAG_IO("reset trst: %i srst %i", cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
302 opendous_tap_execute();
304 if (cmd
->cmd
.reset
->trst
== 1)
305 tap_set_state(TAP_RESET
);
306 opendous_reset(cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
310 DEBUG_JTAG_IO("sleep %i", cmd
->cmd
.sleep
->us
);
311 opendous_tap_execute();
312 jtag_sleep(cmd
->cmd
.sleep
->us
);
316 LOG_ERROR("BUG: unknown JTAG command type encountered");
321 return opendous_tap_execute();
324 static int opendous_init(void)
327 struct opendous_probe
*cur_opendous_probe
;
329 cur_opendous_probe
= opendous_probes
;
331 if (opendous_type
== NULL
) {
332 opendous_type
= strdup("opendous");
333 LOG_WARNING("No opendous_type specified, using default 'opendous'");
336 while (cur_opendous_probe
->name
) {
337 if (strcmp(cur_opendous_probe
->name
, opendous_type
) == 0) {
338 opendous_probe
= cur_opendous_probe
;
341 cur_opendous_probe
++;
344 if (!opendous_probe
) {
345 LOG_ERROR("No matching cable found for %s", opendous_type
);
346 return ERROR_JTAG_INIT_FAILED
;
350 usb_in_buffer
= malloc(opendous_probe
->BUFFERSIZE
);
351 usb_out_buffer
= malloc(opendous_probe
->BUFFERSIZE
);
353 pending_scan_results_buffer
= (struct pending_scan_result
*)
354 malloc(MAX_PENDING_SCAN_RESULTS
* sizeof(struct pending_scan_result
));
356 opendous_jtag_handle
= opendous_usb_open();
358 if (opendous_jtag_handle
== 0) {
359 LOG_ERROR("Cannot find opendous Interface! Please check connection and permissions.");
360 return ERROR_JTAG_INIT_FAILED
;
364 while (check_cnt
< 3) {
365 if (opendous_get_version_info() == ERROR_OK
) {
366 /* attempt to get status */
367 opendous_get_status();
374 LOG_INFO("opendous JTAG Interface ready");
376 opendous_reset(0, 0);
382 static int opendous_quit(void)
384 opendous_usb_close(opendous_jtag_handle
);
386 if (usb_out_buffer
) {
387 free(usb_out_buffer
);
388 usb_out_buffer
= NULL
;
393 usb_in_buffer
= NULL
;
396 if (pending_scan_results_buffer
) {
397 free(pending_scan_results_buffer
);
398 pending_scan_results_buffer
= NULL
;
403 opendous_type
= NULL
;
409 /***************************************************************************/
410 /* Queue command implementations */
412 void opendous_end_state(tap_state_t state
)
414 if (tap_is_state_stable(state
))
415 tap_set_end_state(state
);
417 LOG_ERROR("BUG: %i is not a valid end state", state
);
422 /* Goes to the end state. */
423 void opendous_state_move(void)
427 uint8_t tms_scan
= tap_get_tms_path(tap_get_state(), tap_get_end_state());
428 uint8_t tms_scan_bits
= tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
430 for (i
= 0; i
< tms_scan_bits
; i
++) {
431 tms
= (tms_scan
>> i
) & 1;
432 opendous_tap_append_step(tms
, 0);
435 tap_set_state(tap_get_end_state());
438 void opendous_path_move(int num_states
, tap_state_t
*path
)
442 for (i
= 0; i
< num_states
; i
++) {
443 if (path
[i
] == tap_state_transition(tap_get_state(), false))
444 opendous_tap_append_step(0, 0);
445 else if (path
[i
] == tap_state_transition(tap_get_state(), true))
446 opendous_tap_append_step(1, 0);
448 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
449 tap_state_name(tap_get_state()), tap_state_name(path
[i
]));
453 tap_set_state(path
[i
]);
456 tap_set_end_state(tap_get_state());
459 void opendous_runtest(int num_cycles
)
463 tap_state_t saved_end_state
= tap_get_end_state();
465 /* only do a state_move when we're not already in IDLE */
466 if (tap_get_state() != TAP_IDLE
) {
467 opendous_end_state(TAP_IDLE
);
468 opendous_state_move();
471 /* execute num_cycles */
472 for (i
= 0; i
< num_cycles
; i
++)
473 opendous_tap_append_step(0, 0);
475 /* finish in end_state */
476 opendous_end_state(saved_end_state
);
477 if (tap_get_state() != tap_get_end_state())
478 opendous_state_move();
481 void opendous_scan(int ir_scan
, enum scan_type type
, uint8_t *buffer
, int scan_size
, struct scan_command
*command
)
483 tap_state_t saved_end_state
;
485 opendous_tap_ensure_space(1, scan_size
+ 8);
487 saved_end_state
= tap_get_end_state();
489 /* Move to appropriate scan state */
490 opendous_end_state(ir_scan
? TAP_IRSHIFT
: TAP_DRSHIFT
);
492 if (tap_get_state() != tap_get_end_state())
493 opendous_state_move();
495 opendous_end_state(saved_end_state
);
498 opendous_tap_append_scan(scan_size
, buffer
, command
);
500 /* We are in Exit1, go to Pause */
501 opendous_tap_append_step(0, 0);
503 tap_set_state(ir_scan
? TAP_IRPAUSE
: TAP_DRPAUSE
);
505 if (tap_get_state() != tap_get_end_state())
506 opendous_state_move();
509 void opendous_reset(int trst
, int srst
)
511 LOG_DEBUG("trst: %i, srst: %i", trst
, srst
);
513 /* Signals are active low */
516 opendous_simple_command(JTAG_CMD_SET_SRST
, 1);
518 opendous_simple_command(JTAG_CMD_SET_SRST
, 0);
521 opendous_simple_command(JTAG_CMD_SET_TRST
, 1);
523 opendous_simple_command(JTAG_CMD_SET_TRST
, 0);
528 opendous_simple_command(JTAG_CMD_SET_SRST_TRST
, srst
| trst
);
531 void opendous_simple_command(uint8_t command
, uint8_t _data
)
535 DEBUG_JTAG_IO("0x%02x 0x%02x", command
, _data
);
537 usb_out_buffer
[0] = 2;
538 usb_out_buffer
[1] = 0;
539 usb_out_buffer
[2] = command
;
540 usb_out_buffer
[3] = _data
;
542 result
= opendous_usb_message(opendous_jtag_handle
, 4, 1);
544 LOG_ERROR("opendous command 0x%02x failed (%d)", command
, result
);
547 int opendous_get_status(void)
552 int opendous_get_version_info(void)
557 /***************************************************************************/
558 /* Estick tap functions */
560 static int tap_length
;
561 static uint8_t tms_buffer
[OPENDOUS_TAP_BUFFER_SIZE
];
562 static uint8_t tdo_buffer
[OPENDOUS_TAP_BUFFER_SIZE
];
566 void opendous_tap_init(void)
569 pending_scan_results_length
= 0;
572 void opendous_tap_ensure_space(int scans
, int bits
)
574 int available_scans
= MAX_PENDING_SCAN_RESULTS
- pending_scan_results_length
;
575 int available_bits
= OPENDOUS_TAP_BUFFER_SIZE
/ 2 - tap_length
;
577 if ((scans
> available_scans
) || (bits
> available_bits
))
578 opendous_tap_execute();
581 void opendous_tap_append_step(int tms
, int tdi
)
584 unsigned char _tms
= tms
? 1 : 0;
585 unsigned char _tdi
= tdi
? 1 : 0;
587 opendous_tap_ensure_space(0, 1);
589 int tap_index
= tap_length
/ 4;
590 int bits
= (tap_length
% 4) * 2;
592 if (tap_length
< OPENDOUS_TAP_BUFFER_SIZE
) {
594 tms_buffer
[tap_index
] = 0;
596 tms_buffer
[tap_index
] |= (_tdi
<< bits
)|(_tms
<< (bits
+ 1)) ;
599 LOG_ERROR("opendous_tap_append_step, overflow");
602 void opendous_tap_append_scan(int length
, uint8_t *buffer
, struct scan_command
*command
)
604 DEBUG_JTAG_IO("append scan, length = %d", length
);
606 struct pending_scan_result
*pending_scan_result
= &pending_scan_results_buffer
[pending_scan_results_length
];
609 pending_scan_result
->first
= tap_length
;
610 pending_scan_result
->length
= length
;
611 pending_scan_result
->command
= command
;
612 pending_scan_result
->buffer
= buffer
;
614 for (i
= 0; i
< length
; i
++)
615 opendous_tap_append_step((i
< length
-1 ? 0 : 1), (buffer
[i
/ 8] >> (i
% 8)) & 1);
616 pending_scan_results_length
++;
619 /* Pad and send a tap sequence to the device, and receive the answer.
620 * For the purpose of padding we assume that we are in idle or pause state. */
621 int opendous_tap_execute(void)
627 #ifdef _DEBUG_USB_COMMS_
631 if (tap_length
> 0) {
633 /* memset(tdo_buffer,0,OPENDOUS_TAP_BUFFER_SIZE); */
634 /* LOG_INFO("OPENDOUS tap execute %d",tap_length); */
635 byte_length
= (tap_length
+ 3) / 4;
637 #ifdef _DEBUG_USB_COMMS_
638 byte_length_out
= (tap_length
+ 7) / 8;
639 LOG_DEBUG("opendous is sending %d bytes", byte_length
);
642 for (j
= 0, i
= 0; j
< byte_length
;) {
645 int transmit
= byte_length
- j
;
646 if (transmit
> OPENDOUS_MAX_TAP_TRANSMIT
) {
647 transmit
= OPENDOUS_MAX_TAP_TRANSMIT
;
648 receive
= (OPENDOUS_MAX_TAP_TRANSMIT
) / 2;
649 usb_out_buffer
[2] = JTAG_CMD_TAP_OUTPUT
;
651 usb_out_buffer
[2] = JTAG_CMD_TAP_OUTPUT
| ((tap_length
% 4) << 4);
652 receive
= (transmit
+ 1) / 2;
654 usb_out_buffer
[0] = (transmit
+ 1) & 0xff;
655 usb_out_buffer
[1] = ((transmit
+ 1) >> 8) & 0xff;
657 memmove(usb_out_buffer
+ 3, tms_buffer
+ j
, transmit
);
658 result
= opendous_usb_message(opendous_jtag_handle
, 3 + transmit
, receive
);
659 if (result
!= receive
) {
660 LOG_ERROR("opendous_tap_execute, wrong result %d, expected %d", result
, receive
);
661 return ERROR_JTAG_QUEUE_FAILED
;
664 memmove(tdo_buffer
+ i
, usb_in_buffer
, receive
);
669 #ifdef _DEBUG_USB_COMMS_
670 LOG_DEBUG("opendous tap result %d", byte_length_out
);
671 opendous_debug_buffer(tdo_buffer
, byte_length_out
);
674 /* LOG_INFO("eStick tap execute %d",tap_length); */
675 for (i
= 0; i
< pending_scan_results_length
; i
++) {
677 struct pending_scan_result
*pending_scan_result
= &pending_scan_results_buffer
[i
];
678 uint8_t *buffer
= pending_scan_result
->buffer
;
679 int length
= pending_scan_result
->length
;
680 int first
= pending_scan_result
->first
;
681 struct scan_command
*command
= pending_scan_result
->command
;
684 buf_set_buf(tdo_buffer
, first
, buffer
, 0, length
);
686 DEBUG_JTAG_IO("pending scan result, length = %d", length
);
688 #ifdef _DEBUG_USB_COMMS_
689 opendous_debug_buffer(buffer
, byte_length_out
);
692 if (jtag_read_buffer(buffer
, command
) != ERROR_OK
) {
694 return ERROR_JTAG_QUEUE_FAILED
;
697 if (pending_scan_result
->buffer
!= NULL
)
698 free(pending_scan_result
->buffer
);
707 /*****************************************************************************/
708 /* Estick USB low-level functions */
710 struct opendous_jtag
*opendous_usb_open(void)
712 struct opendous_jtag
*result
;
714 struct jtag_libusb_device_handle
*devh
;
715 if (jtag_libusb_open(opendous_probe
->VID
, opendous_probe
->PID
, &devh
) != ERROR_OK
)
718 jtag_libusb_set_configuration(devh
, 0);
719 jtag_libusb_claim_interface(devh
, 0);
721 result
= (struct opendous_jtag
*) malloc(sizeof(struct opendous_jtag
));
722 result
->usb_handle
= devh
;
726 void opendous_usb_close(struct opendous_jtag
*opendous_jtag
)
728 jtag_libusb_close(opendous_jtag
->usb_handle
);
732 /* Send a message and receive the reply. */
733 int opendous_usb_message(struct opendous_jtag
*opendous_jtag
, int out_length
, int in_length
)
737 result
= opendous_usb_write(opendous_jtag
, out_length
);
738 if (result
== out_length
) {
739 result
= opendous_usb_read(opendous_jtag
);
740 if (result
== in_length
)
743 LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length
, result
);
747 LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length
, result
);
752 /* Write data from out_buffer to USB. */
753 int opendous_usb_write(struct opendous_jtag
*opendous_jtag
, int out_length
)
757 if (out_length
> OPENDOUS_OUT_BUFFER_SIZE
) {
758 LOG_ERROR("opendous_jtag_write illegal out_length=%d (max=%d)", out_length
, OPENDOUS_OUT_BUFFER_SIZE
);
762 #ifdef _DEBUG_USB_COMMS_
763 LOG_DEBUG("%s: USB write begin", opendous_get_time(time_str
));
765 if (opendous_probe
->CONTROL_TRANSFER
) {
766 result
= jtag_libusb_control_transfer(opendous_jtag
->usb_handle
,
767 LIBUSB_REQUEST_TYPE_VENDOR
| LIBUSB_RECIPIENT_DEVICE
| LIBUSB_ENDPOINT_OUT
,
768 FUNC_WRITE_DATA
, 0, 0, (char *) usb_out_buffer
, out_length
, OPENDOUS_USB_TIMEOUT
);
770 result
= jtag_libusb_bulk_write(opendous_jtag
->usb_handle
, OPENDOUS_WRITE_ENDPOINT
, \
771 (char *)usb_out_buffer
, out_length
, OPENDOUS_USB_TIMEOUT
);
773 #ifdef _DEBUG_USB_COMMS_
774 LOG_DEBUG("%s: USB write end: %d bytes", opendous_get_time(time_str
), result
);
777 DEBUG_JTAG_IO("opendous_usb_write, out_length = %d, result = %d", out_length
, result
);
779 #ifdef _DEBUG_USB_COMMS_
780 opendous_debug_buffer(usb_out_buffer
, out_length
);
785 /* Read data from USB into in_buffer. */
786 int opendous_usb_read(struct opendous_jtag
*opendous_jtag
)
788 #ifdef _DEBUG_USB_COMMS_
789 LOG_DEBUG("%s: USB read begin", opendous_get_time(time_str
));
792 if (opendous_probe
->CONTROL_TRANSFER
) {
793 result
= jtag_libusb_control_transfer(opendous_jtag
->usb_handle
,
794 LIBUSB_REQUEST_TYPE_VENDOR
| LIBUSB_RECIPIENT_DEVICE
| LIBUSB_ENDPOINT_IN
,
795 FUNC_READ_DATA
, 0, 0, (char *) usb_in_buffer
, OPENDOUS_IN_BUFFER_SIZE
, OPENDOUS_USB_TIMEOUT
);
797 result
= jtag_libusb_bulk_read(opendous_jtag
->usb_handle
, OPENDOUS_READ_ENDPOINT
,
798 (char *)usb_in_buffer
, OPENDOUS_IN_BUFFER_SIZE
, OPENDOUS_USB_TIMEOUT
);
800 #ifdef _DEBUG_USB_COMMS_
801 LOG_DEBUG("%s: USB read end: %d bytes", opendous_get_time(time_str
), result
);
803 DEBUG_JTAG_IO("opendous_usb_read, result = %d", result
);
805 #ifdef _DEBUG_USB_COMMS_
806 opendous_debug_buffer(usb_in_buffer
, result
);
811 #ifdef _DEBUG_USB_COMMS_
812 #define BYTES_PER_LINE 16
814 void opendous_debug_buffer(uint8_t *buffer
, int length
)
821 for (i
= 0; i
< length
; i
+= BYTES_PER_LINE
) {
822 snprintf(line
, 5, "%04x", i
);
823 for (j
= i
; j
< i
+ BYTES_PER_LINE
&& j
< length
; j
++) {
824 snprintf(s
, 4, " %02x", buffer
[j
]);
827 LOG_DEBUG("%s", line
);
831 char *opendous_get_time(char *str
)
833 struct timeb timebuffer
;
837 timeline
= ctime(&(timebuffer
.time
));
838 snprintf(str
, 49, "%.8s.%hu", &timeline
[11], timebuffer
.millitm
);
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