1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 /***************************************************************************
5 * Copyright (C) 2009 by Cahya Wirawan <cahya@gmx.at> *
6 * Based on opendous driver by Vladimir Fonov *
8 * Copyright (C) 2009 by Vladimir Fonov <vladimir.fonov@gmai.com> *
9 * Based on J-link driver by Juergen Stuber *
11 * Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net> *
12 * based on Dominic Rath's and Benedikt Sauter's usbprog.c *
14 * Copyright (C) 2008 by Spencer Oliver *
15 * spen@spen-soft.co.uk *
16 ***************************************************************************/
22 #include <jtag/interface.h>
23 #include <jtag/commands.h>
24 #include "libusb_helper.h"
28 #define OPENDOUS_MAX_VIDS_PIDS 4
29 /* define some probes with similar interface */
30 struct opendous_probe {
32 uint16_t VID[OPENDOUS_MAX_VIDS_PIDS];
33 uint16_t PID[OPENDOUS_MAX_VIDS_PIDS];
36 uint8_t CONTROL_TRANSFER;
40 static const struct opendous_probe opendous_probes[] = {
41 {"usbprog-jtag", {0x1781, 0}, {0x0C63, 0}, 0x82, 0x02, 0x00, 510 },
42 {"opendous", {0x1781, 0x03EB, 0}, {0xC0C0, 0x204F, 0}, 0x81, 0x02, 0x00, 360 },
43 {"usbvlab", {0x16C0, 0}, {0x05DC, 0}, 0x81, 0x02, 0x01, 360 },
44 {NULL, {0x0000}, {0x0000}, 0x00, 0x00, 0x00, 0 }
47 #define OPENDOUS_WRITE_ENDPOINT (opendous_probe->WRITE_EP)
48 #define OPENDOUS_READ_ENDPOINT (opendous_probe->READ_EP)
50 static unsigned int opendous_hw_jtag_version = 1;
52 #define OPENDOUS_USB_TIMEOUT 1000
54 #define OPENDOUS_USB_BUFFER_SIZE (opendous_probe->BUFFERSIZE)
55 #define OPENDOUS_IN_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
56 #define OPENDOUS_OUT_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
58 /* Global USB buffers */
59 static uint8_t *usb_in_buffer;
60 static uint8_t *usb_out_buffer;
62 /* Constants for OPENDOUS command */
64 #define OPENDOUS_MAX_SPEED 66
65 #define OPENDOUS_MAX_TAP_TRANSMIT ((opendous_probe->BUFFERSIZE)-10)
66 #define OPENDOUS_MAX_INPUT_DATA (OPENDOUS_MAX_TAP_TRANSMIT*4)
69 #define OPENDOUS_TAP_BUFFER_SIZE 65536
71 struct pending_scan_result {
72 int first; /* First bit position in tdo_buffer to read */
73 int length; /* Number of bits to read */
74 struct scan_command *command; /* Corresponding scan command */
78 static int pending_scan_results_length;
79 static struct pending_scan_result *pending_scan_results_buffer;
81 #define MAX_PENDING_SCAN_RESULTS (OPENDOUS_MAX_INPUT_DATA)
83 /* JTAG usb commands */
84 #define JTAG_CMD_TAP_OUTPUT 0x0
85 #define JTAG_CMD_SET_TRST 0x1
86 #define JTAG_CMD_SET_SRST 0x2
87 #define JTAG_CMD_READ_INPUT 0x3
88 #define JTAG_CMD_TAP_OUTPUT_EMU 0x4
89 #define JTAG_CMD_SET_DELAY 0x5
90 #define JTAG_CMD_SET_SRST_TRST 0x6
91 #define JTAG_CMD_READ_CONFIG 0x7
93 /* usbvlab control transfer */
94 #define FUNC_START_BOOTLOADER 30
95 #define FUNC_WRITE_DATA 0x50
96 #define FUNC_READ_DATA 0x51
98 static char *opendous_type;
99 static const struct opendous_probe *opendous_probe;
101 /* External interface functions */
102 static int opendous_execute_queue(void);
103 static int opendous_init(void);
104 static int opendous_quit(void);
106 /* Queue command functions */
107 static void opendous_end_state(tap_state_t state);
108 static void opendous_state_move(void);
109 static void opendous_path_move(int num_states, tap_state_t *path);
110 static void opendous_runtest(int num_cycles);
111 static void opendous_scan(int ir_scan, enum scan_type type, uint8_t *buffer,
112 int scan_size, struct scan_command *command);
113 static void opendous_reset(int trst, int srst);
114 static void opendous_simple_command(uint8_t command, uint8_t _data);
115 static int opendous_get_status(void);
117 /* opendous tap buffer functions */
118 static void opendous_tap_init(void);
119 static int opendous_tap_execute(void);
120 static void opendous_tap_ensure_space(int scans, int bits);
121 static void opendous_tap_append_step(int tms, int tdi);
122 static void opendous_tap_append_scan(int length, uint8_t *buffer, struct scan_command *command);
124 /* opendous lowlevel functions */
125 struct opendous_jtag {
126 struct libusb_device_handle *usb_handle;
129 static struct opendous_jtag *opendous_usb_open(void);
130 static void opendous_usb_close(struct opendous_jtag *opendous_jtag);
131 static int opendous_usb_message(struct opendous_jtag *opendous_jtag, int out_length, int in_length);
132 static int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_length);
133 static int opendous_usb_read(struct opendous_jtag *opendous_jtag);
135 /* helper functions */
136 static int opendous_get_version_info(void);
138 #ifdef _DEBUG_USB_COMMS_
139 static void opendous_debug_buffer(uint8_t *buffer, int length);
142 static struct opendous_jtag *opendous_jtag_handle;
144 /***************************************************************************/
145 /* External interface implementation */
147 COMMAND_HANDLER(opendous_handle_opendous_type_command)
152 /* only if the cable name wasn't overwritten by cmdline */
153 if (!opendous_type) {
154 /* REVISIT first verify that it's listed in cables[] ... */
155 opendous_type = strdup(CMD_ARGV[0]);
158 /* REVISIT it's probably worth returning the current value ... */
163 COMMAND_HANDLER(opendous_handle_opendous_info_command)
165 if (opendous_get_version_info() == ERROR_OK) {
166 /* attempt to get status */
167 opendous_get_status();
173 COMMAND_HANDLER(opendous_handle_opendous_hw_jtag_command)
177 command_print(CMD, "opendous hw jtag %i", opendous_hw_jtag_version);
181 int request_version = atoi(CMD_ARGV[0]);
182 switch (request_version) {
185 opendous_hw_jtag_version = request_version;
189 return ERROR_COMMAND_SYNTAX_ERROR;
195 return ERROR_COMMAND_SYNTAX_ERROR;
201 static const struct command_registration opendous_command_handlers[] = {
203 .name = "opendous_info",
204 .handler = &opendous_handle_opendous_info_command,
205 .mode = COMMAND_EXEC,
206 .help = "show opendous info",
210 .name = "opendous_hw_jtag",
211 .handler = &opendous_handle_opendous_hw_jtag_command,
212 .mode = COMMAND_EXEC,
213 .help = "access opendous HW JTAG command version",
217 .name = "opendous_type",
218 .handler = &opendous_handle_opendous_type_command,
219 .mode = COMMAND_CONFIG,
220 .help = "set opendous type",
221 .usage = "[usbvlab|usbprog-jtag|opendous]",
223 COMMAND_REGISTRATION_DONE
226 static struct jtag_interface opendous_interface = {
227 .execute_queue = opendous_execute_queue,
230 struct adapter_driver opendous_adapter_driver = {
232 .transports = jtag_only,
233 .commands = opendous_command_handlers,
235 .init = opendous_init,
236 .quit = opendous_quit,
238 .jtag_ops = &opendous_interface,
241 static int opendous_execute_queue(void)
243 struct jtag_command *cmd = jtag_command_queue;
251 LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
252 cmd->cmd.runtest->end_state);
254 if (cmd->cmd.runtest->end_state != -1)
255 opendous_end_state(cmd->cmd.runtest->end_state);
256 opendous_runtest(cmd->cmd.runtest->num_cycles);
260 LOG_DEBUG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
262 if (cmd->cmd.statemove->end_state != -1)
263 opendous_end_state(cmd->cmd.statemove->end_state);
264 opendous_state_move();
268 LOG_DEBUG_IO("pathmove: %i states, end in %i",
269 cmd->cmd.pathmove->num_states,
270 cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
272 opendous_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
276 LOG_DEBUG_IO("scan end in %i", cmd->cmd.scan->end_state);
278 if (cmd->cmd.scan->end_state != -1)
279 opendous_end_state(cmd->cmd.scan->end_state);
281 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
282 LOG_DEBUG_IO("scan input, length = %d", scan_size);
284 #ifdef _DEBUG_USB_COMMS_
285 opendous_debug_buffer(buffer, (scan_size + 7) / 8);
287 type = jtag_scan_type(cmd->cmd.scan);
288 opendous_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan);
292 LOG_DEBUG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
294 opendous_tap_execute();
296 if (cmd->cmd.reset->trst == 1)
297 tap_set_state(TAP_RESET);
298 opendous_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
302 LOG_DEBUG_IO("sleep %" PRIu32, cmd->cmd.sleep->us);
303 opendous_tap_execute();
304 jtag_sleep(cmd->cmd.sleep->us);
308 LOG_ERROR("BUG: unknown JTAG command type encountered");
313 return opendous_tap_execute();
316 static int opendous_init(void)
319 const struct opendous_probe *cur_opendous_probe;
321 cur_opendous_probe = opendous_probes;
323 if (!opendous_type) {
324 opendous_type = strdup("opendous");
325 LOG_WARNING("No opendous_type specified, using default 'opendous'");
328 while (cur_opendous_probe->name) {
329 if (strcmp(cur_opendous_probe->name, opendous_type) == 0) {
330 opendous_probe = cur_opendous_probe;
333 cur_opendous_probe++;
336 if (!opendous_probe) {
337 LOG_ERROR("No matching cable found for %s", opendous_type);
338 return ERROR_JTAG_INIT_FAILED;
342 usb_in_buffer = malloc(opendous_probe->BUFFERSIZE);
343 usb_out_buffer = malloc(opendous_probe->BUFFERSIZE);
345 pending_scan_results_buffer = malloc(
346 MAX_PENDING_SCAN_RESULTS * sizeof(*pending_scan_results_buffer));
348 opendous_jtag_handle = opendous_usb_open();
350 if (opendous_jtag_handle == 0) {
351 LOG_ERROR("Cannot find opendous Interface! Please check connection and permissions.");
352 return ERROR_JTAG_INIT_FAILED;
356 while (check_cnt < 3) {
357 if (opendous_get_version_info() == ERROR_OK) {
358 /* attempt to get status */
359 opendous_get_status();
366 LOG_INFO("opendous JTAG Interface ready");
368 opendous_reset(0, 0);
374 static int opendous_quit(void)
376 opendous_usb_close(opendous_jtag_handle);
378 free(usb_out_buffer);
379 usb_out_buffer = NULL;
382 usb_in_buffer = NULL;
384 free(pending_scan_results_buffer);
385 pending_scan_results_buffer = NULL;
388 opendous_type = NULL;
393 /***************************************************************************/
394 /* Queue command implementations */
396 void opendous_end_state(tap_state_t state)
398 if (tap_is_state_stable(state))
399 tap_set_end_state(state);
401 LOG_ERROR("BUG: %i is not a valid end state", state);
406 /* Goes to the end state. */
407 void opendous_state_move(void)
411 uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
412 uint8_t tms_scan_bits = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
414 for (i = 0; i < tms_scan_bits; i++) {
415 tms = (tms_scan >> i) & 1;
416 opendous_tap_append_step(tms, 0);
419 tap_set_state(tap_get_end_state());
422 void opendous_path_move(int num_states, tap_state_t *path)
426 for (i = 0; i < num_states; i++) {
427 if (path[i] == tap_state_transition(tap_get_state(), false))
428 opendous_tap_append_step(0, 0);
429 else if (path[i] == tap_state_transition(tap_get_state(), true))
430 opendous_tap_append_step(1, 0);
432 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
433 tap_state_name(tap_get_state()), tap_state_name(path[i]));
437 tap_set_state(path[i]);
440 tap_set_end_state(tap_get_state());
443 void opendous_runtest(int num_cycles)
447 tap_state_t saved_end_state = tap_get_end_state();
449 /* only do a state_move when we're not already in IDLE */
450 if (tap_get_state() != TAP_IDLE) {
451 opendous_end_state(TAP_IDLE);
452 opendous_state_move();
455 /* execute num_cycles */
456 for (i = 0; i < num_cycles; i++)
457 opendous_tap_append_step(0, 0);
459 /* finish in end_state */
460 opendous_end_state(saved_end_state);
461 if (tap_get_state() != tap_get_end_state())
462 opendous_state_move();
465 void opendous_scan(int ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command)
467 tap_state_t saved_end_state;
469 opendous_tap_ensure_space(1, scan_size + 8);
471 saved_end_state = tap_get_end_state();
473 /* Move to appropriate scan state */
474 opendous_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
476 if (tap_get_state() != tap_get_end_state())
477 opendous_state_move();
479 opendous_end_state(saved_end_state);
482 opendous_tap_append_scan(scan_size, buffer, command);
484 /* We are in Exit1, go to Pause */
485 opendous_tap_append_step(0, 0);
487 tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
489 if (tap_get_state() != tap_get_end_state())
490 opendous_state_move();
493 void opendous_reset(int trst, int srst)
495 LOG_DEBUG("trst: %i, srst: %i", trst, srst);
497 /* Signals are active low */
500 opendous_simple_command(JTAG_CMD_SET_SRST, 1);
502 opendous_simple_command(JTAG_CMD_SET_SRST, 0);
505 opendous_simple_command(JTAG_CMD_SET_TRST, 1);
507 opendous_simple_command(JTAG_CMD_SET_TRST, 0);
512 opendous_simple_command(JTAG_CMD_SET_SRST_TRST, srst | trst);
515 void opendous_simple_command(uint8_t command, uint8_t _data)
519 LOG_DEBUG_IO("0x%02x 0x%02x", command, _data);
521 usb_out_buffer[0] = 2;
522 usb_out_buffer[1] = 0;
523 usb_out_buffer[2] = command;
524 usb_out_buffer[3] = _data;
526 result = opendous_usb_message(opendous_jtag_handle, 4, 1);
528 LOG_ERROR("opendous command 0x%02x failed (%d)", command, result);
531 int opendous_get_status(void)
536 static int opendous_get_version_info(void)
541 /***************************************************************************/
542 /* Estick tap functions */
544 static int tap_length;
545 static uint8_t tms_buffer[OPENDOUS_TAP_BUFFER_SIZE];
546 static uint8_t tdo_buffer[OPENDOUS_TAP_BUFFER_SIZE];
550 void opendous_tap_init(void)
553 pending_scan_results_length = 0;
556 void opendous_tap_ensure_space(int scans, int bits)
558 int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
559 int available_bits = OPENDOUS_TAP_BUFFER_SIZE / 2 - tap_length;
561 if ((scans > available_scans) || (bits > available_bits))
562 opendous_tap_execute();
565 void opendous_tap_append_step(int tms, int tdi)
568 unsigned char _tms = tms ? 1 : 0;
569 unsigned char _tdi = tdi ? 1 : 0;
571 opendous_tap_ensure_space(0, 1);
573 int tap_index = tap_length / 4;
574 int bits = (tap_length % 4) * 2;
576 if (tap_length < OPENDOUS_TAP_BUFFER_SIZE) {
578 tms_buffer[tap_index] = 0;
580 tms_buffer[tap_index] |= (_tdi << bits)|(_tms << (bits + 1));
583 LOG_ERROR("opendous_tap_append_step, overflow");
586 void opendous_tap_append_scan(int length, uint8_t *buffer, struct scan_command *command)
588 LOG_DEBUG_IO("append scan, length = %d", length);
590 struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
593 pending_scan_result->first = tap_length;
594 pending_scan_result->length = length;
595 pending_scan_result->command = command;
596 pending_scan_result->buffer = buffer;
598 for (i = 0; i < length; i++)
599 opendous_tap_append_step((i < length-1 ? 0 : 1), (buffer[i / 8] >> (i % 8)) & 1);
600 pending_scan_results_length++;
603 /* Pad and send a tap sequence to the device, and receive the answer.
604 * For the purpose of padding we assume that we are in idle or pause state. */
605 int opendous_tap_execute(void)
611 #ifdef _DEBUG_USB_COMMS_
615 if (tap_length > 0) {
617 /* memset(tdo_buffer,0,OPENDOUS_TAP_BUFFER_SIZE); */
618 /* LOG_INFO("OPENDOUS tap execute %d",tap_length); */
619 byte_length = (tap_length + 3) / 4;
621 #ifdef _DEBUG_USB_COMMS_
622 byte_length_out = (tap_length + 7) / 8;
623 LOG_DEBUG("opendous is sending %d bytes", byte_length);
626 for (j = 0, i = 0; j < byte_length;) {
629 int transmit = byte_length - j;
630 if (transmit > OPENDOUS_MAX_TAP_TRANSMIT) {
631 transmit = OPENDOUS_MAX_TAP_TRANSMIT;
632 receive = (OPENDOUS_MAX_TAP_TRANSMIT) / 2;
633 usb_out_buffer[2] = JTAG_CMD_TAP_OUTPUT;
635 usb_out_buffer[2] = JTAG_CMD_TAP_OUTPUT | ((tap_length % 4) << 4);
636 receive = (transmit + 1) / 2;
638 usb_out_buffer[0] = (transmit + 1) & 0xff;
639 usb_out_buffer[1] = ((transmit + 1) >> 8) & 0xff;
641 memmove(usb_out_buffer + 3, tms_buffer + j, transmit);
642 result = opendous_usb_message(opendous_jtag_handle, 3 + transmit, receive);
643 if (result != receive) {
644 LOG_ERROR("opendous_tap_execute, wrong result %d, expected %d", result, receive);
645 return ERROR_JTAG_QUEUE_FAILED;
648 memmove(tdo_buffer + i, usb_in_buffer, receive);
653 #ifdef _DEBUG_USB_COMMS_
654 LOG_DEBUG("opendous tap result %d", byte_length_out);
655 opendous_debug_buffer(tdo_buffer, byte_length_out);
658 /* LOG_INFO("eStick tap execute %d",tap_length); */
659 for (i = 0; i < pending_scan_results_length; i++) {
661 struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[i];
662 uint8_t *buffer = pending_scan_result->buffer;
663 int length = pending_scan_result->length;
664 int first = pending_scan_result->first;
665 struct scan_command *command = pending_scan_result->command;
668 buf_set_buf(tdo_buffer, first, buffer, 0, length);
670 LOG_DEBUG_IO("pending scan result, length = %d", length);
672 #ifdef _DEBUG_USB_COMMS_
673 opendous_debug_buffer(buffer, byte_length_out);
676 if (jtag_read_buffer(buffer, command) != ERROR_OK) {
678 return ERROR_JTAG_QUEUE_FAILED;
681 free(pending_scan_result->buffer);
690 /*****************************************************************************/
691 /* Estick USB low-level functions */
693 struct opendous_jtag *opendous_usb_open(void)
695 struct opendous_jtag *result;
697 struct libusb_device_handle *devh;
698 if (jtag_libusb_open(opendous_probe->VID, opendous_probe->PID, &devh, NULL) != ERROR_OK)
701 jtag_libusb_set_configuration(devh, 0);
702 libusb_claim_interface(devh, 0);
704 result = malloc(sizeof(*result));
705 result->usb_handle = devh;
709 void opendous_usb_close(struct opendous_jtag *opendous_jtag)
711 jtag_libusb_close(opendous_jtag->usb_handle);
715 /* Send a message and receive the reply. */
716 int opendous_usb_message(struct opendous_jtag *opendous_jtag, int out_length, int in_length)
720 result = opendous_usb_write(opendous_jtag, out_length);
721 if (result == out_length) {
722 result = opendous_usb_read(opendous_jtag);
723 if (result == in_length)
726 LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length, result);
730 LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length, result);
735 /* Write data from out_buffer to USB. */
736 int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_length)
740 if (out_length > OPENDOUS_OUT_BUFFER_SIZE) {
741 LOG_ERROR("opendous_jtag_write illegal out_length=%d (max=%d)", out_length, OPENDOUS_OUT_BUFFER_SIZE);
745 #ifdef _DEBUG_USB_COMMS_
746 LOG_DEBUG("USB write begin");
748 if (opendous_probe->CONTROL_TRANSFER) {
749 result = jtag_libusb_control_transfer(opendous_jtag->usb_handle,
750 LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT,
751 FUNC_WRITE_DATA, 0, 0, (char *) usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT);
753 jtag_libusb_bulk_write(opendous_jtag->usb_handle, OPENDOUS_WRITE_ENDPOINT,
754 (char *)usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT, &result);
756 #ifdef _DEBUG_USB_COMMS_
757 LOG_DEBUG("USB write end: %d bytes", result);
760 LOG_DEBUG_IO("opendous_usb_write, out_length = %d, result = %d", out_length, result);
762 #ifdef _DEBUG_USB_COMMS_
763 opendous_debug_buffer(usb_out_buffer, out_length);
768 /* Read data from USB into in_buffer. */
769 int opendous_usb_read(struct opendous_jtag *opendous_jtag)
771 #ifdef _DEBUG_USB_COMMS_
772 LOG_DEBUG("USB read begin");
775 if (opendous_probe->CONTROL_TRANSFER) {
776 result = jtag_libusb_control_transfer(opendous_jtag->usb_handle,
777 LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN,
778 FUNC_READ_DATA, 0, 0, (char *) usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT);
780 jtag_libusb_bulk_read(opendous_jtag->usb_handle, OPENDOUS_READ_ENDPOINT,
781 (char *)usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT, &result);
783 #ifdef _DEBUG_USB_COMMS_
784 LOG_DEBUG("USB read end: %d bytes", result);
786 LOG_DEBUG_IO("opendous_usb_read, result = %d", result);
788 #ifdef _DEBUG_USB_COMMS_
789 opendous_debug_buffer(usb_in_buffer, result);
794 #ifdef _DEBUG_USB_COMMS_
795 #define BYTES_PER_LINE 16
797 void opendous_debug_buffer(uint8_t *buffer, int length)
804 for (i = 0; i < length; i += BYTES_PER_LINE) {
805 snprintf(line, 5, "%04x", i);
806 for (j = i; j < i + BYTES_PER_LINE && j < length; j++) {
807 snprintf(s, 4, " %02x", buffer[j]);
810 LOG_DEBUG("%s", line);