|
- /***************************************************************************
- * *
- * Copyright (C) 2009 by Cahya Wirawan <cahya@gmx.at> *
- * Based on opendous driver by Vladimir Fonov *
- * *
- * Copyright (C) 2009 by Vladimir Fonov <vladimir.fonov@gmai.com> *
- * Based on J-link driver by Juergen Stuber *
- * *
- * Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net> *
- * based on Dominic Rath's and Benedikt Sauter's usbprog.c *
- * *
- * Copyright (C) 2008 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program. If not, see <http://www.gnu.org/licenses/>. *
- ***************************************************************************/
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include <jtag/interface.h>
- #include <jtag/commands.h>
- #include "libusb_common.h"
- #include <string.h>
- #include <time.h>
-
- #define OPENDOUS_MAX_VIDS_PIDS 4
- /* define some probes with similar interface */
- struct opendous_probe {
- const char *name;
- uint16_t VID[OPENDOUS_MAX_VIDS_PIDS];
- uint16_t PID[OPENDOUS_MAX_VIDS_PIDS];
- uint8_t READ_EP;
- uint8_t WRITE_EP;
- uint8_t CONTROL_TRANSFER;
- int BUFFERSIZE;
- };
-
- static const struct opendous_probe opendous_probes[] = {
- {"usbprog-jtag", {0x1781, 0}, {0x0C63, 0}, 0x82, 0x02, 0x00, 510 },
- {"opendous", {0x1781, 0x03EB, 0}, {0xC0C0, 0x204F, 0}, 0x81, 0x02, 0x00, 360 },
- {"usbvlab", {0x16C0, 0}, {0x05DC, 0}, 0x81, 0x02, 0x01, 360 },
- {NULL, {0x0000}, {0x0000}, 0x00, 0x00, 0x00, 0 }
- };
-
- #define OPENDOUS_WRITE_ENDPOINT (opendous_probe->WRITE_EP)
- #define OPENDOUS_READ_ENDPOINT (opendous_probe->READ_EP)
-
- static unsigned int opendous_hw_jtag_version = 1;
-
- #define OPENDOUS_USB_TIMEOUT 1000
-
- #define OPENDOUS_USB_BUFFER_SIZE (opendous_probe->BUFFERSIZE)
- #define OPENDOUS_IN_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
- #define OPENDOUS_OUT_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
-
- /* Global USB buffers */
- static uint8_t *usb_in_buffer;
- static uint8_t *usb_out_buffer;
-
- /* Constants for OPENDOUS command */
-
- #define OPENDOUS_MAX_SPEED 66
- #define OPENDOUS_MAX_TAP_TRANSMIT ((opendous_probe->BUFFERSIZE)-10)
- #define OPENDOUS_MAX_INPUT_DATA (OPENDOUS_MAX_TAP_TRANSMIT*4)
-
- /* TAP */
- #define OPENDOUS_TAP_BUFFER_SIZE 65536
-
- struct pending_scan_result {
- int first; /* First bit position in tdo_buffer to read */
- int length; /* Number of bits to read */
- struct scan_command *command; /* Corresponding scan command */
- uint8_t *buffer;
- };
-
- static int pending_scan_results_length;
- static struct pending_scan_result *pending_scan_results_buffer;
-
- #define MAX_PENDING_SCAN_RESULTS (OPENDOUS_MAX_INPUT_DATA)
-
- /* JTAG usb commands */
- #define JTAG_CMD_TAP_OUTPUT 0x0
- #define JTAG_CMD_SET_TRST 0x1
- #define JTAG_CMD_SET_SRST 0x2
- #define JTAG_CMD_READ_INPUT 0x3
- #define JTAG_CMD_TAP_OUTPUT_EMU 0x4
- #define JTAG_CMD_SET_DELAY 0x5
- #define JTAG_CMD_SET_SRST_TRST 0x6
- #define JTAG_CMD_READ_CONFIG 0x7
-
- /* usbvlab control transfer */
- #define FUNC_START_BOOTLOADER 30
- #define FUNC_WRITE_DATA 0x50
- #define FUNC_READ_DATA 0x51
-
- static char *opendous_type;
- static const struct opendous_probe *opendous_probe;
-
- /* External interface functions */
- static int opendous_execute_queue(void);
- static int opendous_init(void);
- static int opendous_quit(void);
-
- /* Queue command functions */
- static void opendous_end_state(tap_state_t state);
- static void opendous_state_move(void);
- static void opendous_path_move(int num_states, tap_state_t *path);
- static void opendous_runtest(int num_cycles);
- static void opendous_scan(int ir_scan, enum scan_type type, uint8_t *buffer,
- int scan_size, struct scan_command *command);
- static void opendous_reset(int trst, int srst);
- static void opendous_simple_command(uint8_t command, uint8_t _data);
- static int opendous_get_status(void);
-
- /* opendous tap buffer functions */
- static void opendous_tap_init(void);
- static int opendous_tap_execute(void);
- static void opendous_tap_ensure_space(int scans, int bits);
- static void opendous_tap_append_step(int tms, int tdi);
- static void opendous_tap_append_scan(int length, uint8_t *buffer, struct scan_command *command);
-
- /* opendous lowlevel functions */
- struct opendous_jtag {
- struct jtag_libusb_device_handle *usb_handle;
- };
-
- static struct opendous_jtag *opendous_usb_open(void);
- static void opendous_usb_close(struct opendous_jtag *opendous_jtag);
- static int opendous_usb_message(struct opendous_jtag *opendous_jtag, int out_length, int in_length);
- static int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_length);
- static int opendous_usb_read(struct opendous_jtag *opendous_jtag);
-
- /* helper functions */
- int opendous_get_version_info(void);
-
- #ifdef _DEBUG_USB_COMMS_
- static void opendous_debug_buffer(uint8_t *buffer, int length);
- #endif
-
- static struct opendous_jtag *opendous_jtag_handle;
-
- /***************************************************************************/
- /* External interface implementation */
-
- COMMAND_HANDLER(opendous_handle_opendous_type_command)
- {
- if (CMD_ARGC == 0)
- return ERROR_OK;
-
- /* only if the cable name wasn't overwritten by cmdline */
- if (opendous_type == NULL) {
- /* REVISIT first verify that it's listed in cables[] ... */
- opendous_type = strdup(CMD_ARGV[0]);
- }
-
- /* REVISIT it's probably worth returning the current value ... */
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(opendous_handle_opendous_info_command)
- {
- if (opendous_get_version_info() == ERROR_OK) {
- /* attempt to get status */
- opendous_get_status();
- }
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(opendous_handle_opendous_hw_jtag_command)
- {
- switch (CMD_ARGC) {
- case 0:
- command_print(CMD, "opendous hw jtag %i", opendous_hw_jtag_version);
- break;
-
- case 1: {
- int request_version = atoi(CMD_ARGV[0]);
- switch (request_version) {
- case 2:
- case 3:
- opendous_hw_jtag_version = request_version;
- break;
-
- default:
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- break;
- }
-
- default:
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- return ERROR_OK;
- }
-
- static const struct command_registration opendous_command_handlers[] = {
- {
- .name = "opendous_info",
- .handler = &opendous_handle_opendous_info_command,
- .mode = COMMAND_EXEC,
- .help = "show opendous info",
- .usage = "",
- },
- {
- .name = "opendous_hw_jtag",
- .handler = &opendous_handle_opendous_hw_jtag_command,
- .mode = COMMAND_EXEC,
- .help = "access opendous HW JTAG command version",
- .usage = "[2|3]",
- },
- {
- .name = "opendous_type",
- .handler = &opendous_handle_opendous_type_command,
- .mode = COMMAND_CONFIG,
- .help = "set opendous type",
- .usage = "[usbvlab|usbprog-jtag|opendous]",
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static struct jtag_interface opendous_interface = {
- .execute_queue = opendous_execute_queue,
- };
-
- struct adapter_driver opendous_adapter_driver = {
- .name = "opendous",
- .transports = jtag_only,
- .commands = opendous_command_handlers,
-
- .init = opendous_init,
- .quit = opendous_quit,
-
- .jtag_ops = &opendous_interface,
- };
-
- static int opendous_execute_queue(void)
- {
- struct jtag_command *cmd = jtag_command_queue;
- int scan_size;
- enum scan_type type;
- uint8_t *buffer;
-
- while (cmd != NULL) {
- switch (cmd->type) {
- case JTAG_RUNTEST:
- LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, \
- cmd->cmd.runtest->end_state);
-
- if (cmd->cmd.runtest->end_state != -1)
- opendous_end_state(cmd->cmd.runtest->end_state);
- opendous_runtest(cmd->cmd.runtest->num_cycles);
- break;
-
- case JTAG_TLR_RESET:
- LOG_DEBUG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
-
- if (cmd->cmd.statemove->end_state != -1)
- opendous_end_state(cmd->cmd.statemove->end_state);
- opendous_state_move();
- break;
-
- case JTAG_PATHMOVE:
- LOG_DEBUG_IO("pathmove: %i states, end in %i", \
- cmd->cmd.pathmove->num_states, \
- cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
-
- opendous_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
- break;
-
- case JTAG_SCAN:
- LOG_DEBUG_IO("scan end in %i", cmd->cmd.scan->end_state);
-
- if (cmd->cmd.scan->end_state != -1)
- opendous_end_state(cmd->cmd.scan->end_state);
-
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
- LOG_DEBUG_IO("scan input, length = %d", scan_size);
-
- #ifdef _DEBUG_USB_COMMS_
- opendous_debug_buffer(buffer, (scan_size + 7) / 8);
- #endif
- type = jtag_scan_type(cmd->cmd.scan);
- opendous_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan);
- break;
-
- case JTAG_RESET:
- LOG_DEBUG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-
- opendous_tap_execute();
-
- if (cmd->cmd.reset->trst == 1)
- tap_set_state(TAP_RESET);
- opendous_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
- break;
-
- case JTAG_SLEEP:
- LOG_DEBUG_IO("sleep %" PRIi32, cmd->cmd.sleep->us);
- opendous_tap_execute();
- jtag_sleep(cmd->cmd.sleep->us);
- break;
-
- default:
- LOG_ERROR("BUG: unknown JTAG command type encountered");
- exit(-1);
- }
- cmd = cmd->next;
- }
- return opendous_tap_execute();
- }
-
- static int opendous_init(void)
- {
- int check_cnt;
- const struct opendous_probe *cur_opendous_probe;
-
- cur_opendous_probe = opendous_probes;
-
- if (opendous_type == NULL) {
- opendous_type = strdup("opendous");
- LOG_WARNING("No opendous_type specified, using default 'opendous'");
- }
-
- while (cur_opendous_probe->name) {
- if (strcmp(cur_opendous_probe->name, opendous_type) == 0) {
- opendous_probe = cur_opendous_probe;
- break;
- }
- cur_opendous_probe++;
- }
-
- if (!opendous_probe) {
- LOG_ERROR("No matching cable found for %s", opendous_type);
- return ERROR_JTAG_INIT_FAILED;
- }
-
-
- usb_in_buffer = malloc(opendous_probe->BUFFERSIZE);
- usb_out_buffer = malloc(opendous_probe->BUFFERSIZE);
-
- pending_scan_results_buffer = malloc(
- MAX_PENDING_SCAN_RESULTS * sizeof(*pending_scan_results_buffer));
-
- opendous_jtag_handle = opendous_usb_open();
-
- if (opendous_jtag_handle == 0) {
- LOG_ERROR("Cannot find opendous Interface! Please check connection and permissions.");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- check_cnt = 0;
- while (check_cnt < 3) {
- if (opendous_get_version_info() == ERROR_OK) {
- /* attempt to get status */
- opendous_get_status();
- break;
- }
-
- check_cnt++;
- }
-
- LOG_INFO("opendous JTAG Interface ready");
-
- opendous_reset(0, 0);
- opendous_tap_init();
-
- return ERROR_OK;
- }
-
- static int opendous_quit(void)
- {
- opendous_usb_close(opendous_jtag_handle);
-
- if (usb_out_buffer) {
- free(usb_out_buffer);
- usb_out_buffer = NULL;
- }
-
- if (usb_in_buffer) {
- free(usb_in_buffer);
- usb_in_buffer = NULL;
- }
-
- if (pending_scan_results_buffer) {
- free(pending_scan_results_buffer);
- pending_scan_results_buffer = NULL;
- }
-
- if (opendous_type) {
- free(opendous_type);
- opendous_type = NULL;
- }
-
- return ERROR_OK;
- }
-
- /***************************************************************************/
- /* Queue command implementations */
-
- void opendous_end_state(tap_state_t state)
- {
- if (tap_is_state_stable(state))
- tap_set_end_state(state);
- else {
- LOG_ERROR("BUG: %i is not a valid end state", state);
- exit(-1);
- }
- }
-
- /* Goes to the end state. */
- void opendous_state_move(void)
- {
- int i;
- int tms = 0;
- uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
- uint8_t tms_scan_bits = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
-
- for (i = 0; i < tms_scan_bits; i++) {
- tms = (tms_scan >> i) & 1;
- opendous_tap_append_step(tms, 0);
- }
-
- tap_set_state(tap_get_end_state());
- }
-
- void opendous_path_move(int num_states, tap_state_t *path)
- {
- int i;
-
- for (i = 0; i < num_states; i++) {
- if (path[i] == tap_state_transition(tap_get_state(), false))
- opendous_tap_append_step(0, 0);
- else if (path[i] == tap_state_transition(tap_get_state(), true))
- opendous_tap_append_step(1, 0);
- else {
- LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
- tap_state_name(tap_get_state()), tap_state_name(path[i]));
- exit(-1);
- }
-
- tap_set_state(path[i]);
- }
-
- tap_set_end_state(tap_get_state());
- }
-
- void opendous_runtest(int num_cycles)
- {
- int i;
-
- tap_state_t saved_end_state = tap_get_end_state();
-
- /* only do a state_move when we're not already in IDLE */
- if (tap_get_state() != TAP_IDLE) {
- opendous_end_state(TAP_IDLE);
- opendous_state_move();
- }
-
- /* execute num_cycles */
- for (i = 0; i < num_cycles; i++)
- opendous_tap_append_step(0, 0);
-
- /* finish in end_state */
- opendous_end_state(saved_end_state);
- if (tap_get_state() != tap_get_end_state())
- opendous_state_move();
- }
-
- void opendous_scan(int ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command)
- {
- tap_state_t saved_end_state;
-
- opendous_tap_ensure_space(1, scan_size + 8);
-
- saved_end_state = tap_get_end_state();
-
- /* Move to appropriate scan state */
- opendous_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
-
- if (tap_get_state() != tap_get_end_state())
- opendous_state_move();
-
- opendous_end_state(saved_end_state);
-
- /* Scan */
- opendous_tap_append_scan(scan_size, buffer, command);
-
- /* We are in Exit1, go to Pause */
- opendous_tap_append_step(0, 0);
-
- tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
-
- if (tap_get_state() != tap_get_end_state())
- opendous_state_move();
- }
-
- void opendous_reset(int trst, int srst)
- {
- LOG_DEBUG("trst: %i, srst: %i", trst, srst);
-
- /* Signals are active low */
- #if 0
- if (srst == 0)
- opendous_simple_command(JTAG_CMD_SET_SRST, 1);
- else if (srst == 1)
- opendous_simple_command(JTAG_CMD_SET_SRST, 0);
-
- if (trst == 0)
- opendous_simple_command(JTAG_CMD_SET_TRST, 1);
- else if (trst == 1)
- opendous_simple_command(JTAG_CMD_SET_TRST, 0);
- #endif
-
- srst = srst ? 0 : 1;
- trst = trst ? 0 : 2;
- opendous_simple_command(JTAG_CMD_SET_SRST_TRST, srst | trst);
- }
-
- void opendous_simple_command(uint8_t command, uint8_t _data)
- {
- int result;
-
- LOG_DEBUG_IO("0x%02x 0x%02x", command, _data);
-
- usb_out_buffer[0] = 2;
- usb_out_buffer[1] = 0;
- usb_out_buffer[2] = command;
- usb_out_buffer[3] = _data;
-
- result = opendous_usb_message(opendous_jtag_handle, 4, 1);
- if (result != 1)
- LOG_ERROR("opendous command 0x%02x failed (%d)", command, result);
- }
-
- int opendous_get_status(void)
- {
- return ERROR_OK;
- }
-
- int opendous_get_version_info(void)
- {
- return ERROR_OK;
- }
-
- /***************************************************************************/
- /* Estick tap functions */
-
- static int tap_length;
- static uint8_t tms_buffer[OPENDOUS_TAP_BUFFER_SIZE];
- static uint8_t tdo_buffer[OPENDOUS_TAP_BUFFER_SIZE];
-
- static int last_tms;
-
- void opendous_tap_init(void)
- {
- tap_length = 0;
- pending_scan_results_length = 0;
- }
-
- void opendous_tap_ensure_space(int scans, int bits)
- {
- int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
- int available_bits = OPENDOUS_TAP_BUFFER_SIZE / 2 - tap_length;
-
- if ((scans > available_scans) || (bits > available_bits))
- opendous_tap_execute();
- }
-
- void opendous_tap_append_step(int tms, int tdi)
- {
- last_tms = tms;
- unsigned char _tms = tms ? 1 : 0;
- unsigned char _tdi = tdi ? 1 : 0;
-
- opendous_tap_ensure_space(0, 1);
-
- int tap_index = tap_length / 4;
- int bits = (tap_length % 4) * 2;
-
- if (tap_length < OPENDOUS_TAP_BUFFER_SIZE) {
- if (!bits)
- tms_buffer[tap_index] = 0;
-
- tms_buffer[tap_index] |= (_tdi << bits)|(_tms << (bits + 1)) ;
- tap_length++;
- } else
- LOG_ERROR("opendous_tap_append_step, overflow");
- }
-
- void opendous_tap_append_scan(int length, uint8_t *buffer, struct scan_command *command)
- {
- LOG_DEBUG_IO("append scan, length = %d", length);
-
- struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
- int i;
-
- pending_scan_result->first = tap_length;
- pending_scan_result->length = length;
- pending_scan_result->command = command;
- pending_scan_result->buffer = buffer;
-
- for (i = 0; i < length; i++)
- opendous_tap_append_step((i < length-1 ? 0 : 1), (buffer[i / 8] >> (i % 8)) & 1);
- pending_scan_results_length++;
- }
-
- /* Pad and send a tap sequence to the device, and receive the answer.
- * For the purpose of padding we assume that we are in idle or pause state. */
- int opendous_tap_execute(void)
- {
- int byte_length;
- int i, j;
- int result;
-
- #ifdef _DEBUG_USB_COMMS_
- int byte_length_out;
- #endif
-
- if (tap_length > 0) {
-
- /* memset(tdo_buffer,0,OPENDOUS_TAP_BUFFER_SIZE); */
- /* LOG_INFO("OPENDOUS tap execute %d",tap_length); */
- byte_length = (tap_length + 3) / 4;
-
- #ifdef _DEBUG_USB_COMMS_
- byte_length_out = (tap_length + 7) / 8;
- LOG_DEBUG("opendous is sending %d bytes", byte_length);
- #endif
-
- for (j = 0, i = 0; j < byte_length;) {
-
- int receive;
- int transmit = byte_length - j;
- if (transmit > OPENDOUS_MAX_TAP_TRANSMIT) {
- transmit = OPENDOUS_MAX_TAP_TRANSMIT;
- receive = (OPENDOUS_MAX_TAP_TRANSMIT) / 2;
- usb_out_buffer[2] = JTAG_CMD_TAP_OUTPUT;
- } else {
- usb_out_buffer[2] = JTAG_CMD_TAP_OUTPUT | ((tap_length % 4) << 4);
- receive = (transmit + 1) / 2;
- }
- usb_out_buffer[0] = (transmit + 1) & 0xff;
- usb_out_buffer[1] = ((transmit + 1) >> 8) & 0xff;
-
- memmove(usb_out_buffer + 3, tms_buffer + j, transmit);
- result = opendous_usb_message(opendous_jtag_handle, 3 + transmit, receive);
- if (result != receive) {
- LOG_ERROR("opendous_tap_execute, wrong result %d, expected %d", result, receive);
- return ERROR_JTAG_QUEUE_FAILED;
- }
-
- memmove(tdo_buffer + i, usb_in_buffer, receive);
- i += receive;
- j += transmit;
- }
-
- #ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("opendous tap result %d", byte_length_out);
- opendous_debug_buffer(tdo_buffer, byte_length_out);
- #endif
-
- /* LOG_INFO("eStick tap execute %d",tap_length); */
- for (i = 0; i < pending_scan_results_length; i++) {
-
- struct pending_scan_result *pending_scan_result = &pending_scan_results_buffer[i];
- uint8_t *buffer = pending_scan_result->buffer;
- int length = pending_scan_result->length;
- int first = pending_scan_result->first;
- struct scan_command *command = pending_scan_result->command;
-
- /* Copy to buffer */
- buf_set_buf(tdo_buffer, first, buffer, 0, length);
-
- LOG_DEBUG_IO("pending scan result, length = %d", length);
-
- #ifdef _DEBUG_USB_COMMS_
- opendous_debug_buffer(buffer, byte_length_out);
- #endif
-
- if (jtag_read_buffer(buffer, command) != ERROR_OK) {
- opendous_tap_init();
- return ERROR_JTAG_QUEUE_FAILED;
- }
-
- if (pending_scan_result->buffer != NULL)
- free(pending_scan_result->buffer);
- }
-
- opendous_tap_init();
- }
-
- return ERROR_OK;
- }
-
- /*****************************************************************************/
- /* Estick USB low-level functions */
-
- struct opendous_jtag *opendous_usb_open(void)
- {
- struct opendous_jtag *result;
-
- struct jtag_libusb_device_handle *devh;
- if (jtag_libusb_open(opendous_probe->VID, opendous_probe->PID, NULL, &devh) != ERROR_OK)
- return NULL;
-
- jtag_libusb_set_configuration(devh, 0);
- jtag_libusb_claim_interface(devh, 0);
-
- result = malloc(sizeof(*result));
- result->usb_handle = devh;
- return result;
- }
-
- void opendous_usb_close(struct opendous_jtag *opendous_jtag)
- {
- jtag_libusb_close(opendous_jtag->usb_handle);
- free(opendous_jtag);
- }
-
- /* Send a message and receive the reply. */
- int opendous_usb_message(struct opendous_jtag *opendous_jtag, int out_length, int in_length)
- {
- int result;
-
- result = opendous_usb_write(opendous_jtag, out_length);
- if (result == out_length) {
- result = opendous_usb_read(opendous_jtag);
- if (result == in_length)
- return result;
- else {
- LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length, result);
- return -1;
- }
- } else {
- LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length, result);
- return -1;
- }
- }
-
- /* Write data from out_buffer to USB. */
- int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_length)
- {
- int result;
-
- if (out_length > OPENDOUS_OUT_BUFFER_SIZE) {
- LOG_ERROR("opendous_jtag_write illegal out_length=%d (max=%d)", out_length, OPENDOUS_OUT_BUFFER_SIZE);
- return -1;
- }
-
- #ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("USB write begin");
- #endif
- if (opendous_probe->CONTROL_TRANSFER) {
- result = jtag_libusb_control_transfer(opendous_jtag->usb_handle,
- LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT,
- FUNC_WRITE_DATA, 0, 0, (char *) usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT);
- } else {
- result = jtag_libusb_bulk_write(opendous_jtag->usb_handle, OPENDOUS_WRITE_ENDPOINT, \
- (char *)usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT);
- }
- #ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("USB write end: %d bytes", result);
- #endif
-
- LOG_DEBUG_IO("opendous_usb_write, out_length = %d, result = %d", out_length, result);
-
- #ifdef _DEBUG_USB_COMMS_
- opendous_debug_buffer(usb_out_buffer, out_length);
- #endif
- return result;
- }
-
- /* Read data from USB into in_buffer. */
- int opendous_usb_read(struct opendous_jtag *opendous_jtag)
- {
- #ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("USB read begin");
- #endif
- int result;
- if (opendous_probe->CONTROL_TRANSFER) {
- result = jtag_libusb_control_transfer(opendous_jtag->usb_handle,
- LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN,
- FUNC_READ_DATA, 0, 0, (char *) usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT);
- } else {
- result = jtag_libusb_bulk_read(opendous_jtag->usb_handle, OPENDOUS_READ_ENDPOINT,
- (char *)usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT);
- }
- #ifdef _DEBUG_USB_COMMS_
- LOG_DEBUG("USB read end: %d bytes", result);
- #endif
- LOG_DEBUG_IO("opendous_usb_read, result = %d", result);
-
- #ifdef _DEBUG_USB_COMMS_
- opendous_debug_buffer(usb_in_buffer, result);
- #endif
- return result;
- }
-
- #ifdef _DEBUG_USB_COMMS_
- #define BYTES_PER_LINE 16
-
- void opendous_debug_buffer(uint8_t *buffer, int length)
- {
- char line[81];
- char s[4];
- int i;
- int j;
-
- for (i = 0; i < length; i += BYTES_PER_LINE) {
- snprintf(line, 5, "%04x", i);
- for (j = i; j < i + BYTES_PER_LINE && j < length; j++) {
- snprintf(s, 4, " %02x", buffer[j]);
- strcat(line, s);
- }
- LOG_DEBUG("%s", line);
- }
- }
- #endif
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