825 lines
23 KiB
C
825 lines
23 KiB
C
/***************************************************************************
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* *
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* Copyright (C) 2009 by Cahya Wirawan <cahya@gmx.at> *
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* Based on opendous driver by Vladimir Fonov *
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* *
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* Copyright (C) 2009 by Vladimir Fonov <vladimir.fonov@gmai.com> *
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* Based on J-link driver by Juergen Stuber *
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* *
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* Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net> *
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* based on Dominic Rath's and Benedikt Sauter's usbprog.c *
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* *
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* Copyright (C) 2008 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <jtag/interface.h>
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#include <jtag/commands.h>
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#include "libusb_helper.h"
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#include <string.h>
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#include <time.h>
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#define OPENDOUS_MAX_VIDS_PIDS 4
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/* define some probes with similar interface */
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struct opendous_probe {
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const char *name;
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uint16_t VID[OPENDOUS_MAX_VIDS_PIDS];
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uint16_t PID[OPENDOUS_MAX_VIDS_PIDS];
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uint8_t READ_EP;
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uint8_t WRITE_EP;
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uint8_t CONTROL_TRANSFER;
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int BUFFERSIZE;
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};
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static const struct opendous_probe opendous_probes[] = {
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{"usbprog-jtag", {0x1781, 0}, {0x0C63, 0}, 0x82, 0x02, 0x00, 510 },
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{"opendous", {0x1781, 0x03EB, 0}, {0xC0C0, 0x204F, 0}, 0x81, 0x02, 0x00, 360 },
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{"usbvlab", {0x16C0, 0}, {0x05DC, 0}, 0x81, 0x02, 0x01, 360 },
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{NULL, {0x0000}, {0x0000}, 0x00, 0x00, 0x00, 0 }
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};
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#define OPENDOUS_WRITE_ENDPOINT (opendous_probe->WRITE_EP)
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#define OPENDOUS_READ_ENDPOINT (opendous_probe->READ_EP)
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static unsigned int opendous_hw_jtag_version = 1;
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#define OPENDOUS_USB_TIMEOUT 1000
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#define OPENDOUS_USB_BUFFER_SIZE (opendous_probe->BUFFERSIZE)
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#define OPENDOUS_IN_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
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#define OPENDOUS_OUT_BUFFER_SIZE (OPENDOUS_USB_BUFFER_SIZE)
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/* Global USB buffers */
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static uint8_t *usb_in_buffer;
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static uint8_t *usb_out_buffer;
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/* Constants for OPENDOUS command */
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#define OPENDOUS_MAX_SPEED 66
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#define OPENDOUS_MAX_TAP_TRANSMIT ((opendous_probe->BUFFERSIZE)-10)
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#define OPENDOUS_MAX_INPUT_DATA (OPENDOUS_MAX_TAP_TRANSMIT*4)
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/* TAP */
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#define OPENDOUS_TAP_BUFFER_SIZE 65536
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struct pending_scan_result {
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int first; /* First bit position in tdo_buffer to read */
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int length; /* Number of bits to read */
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struct scan_command *command; /* Corresponding scan command */
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uint8_t *buffer;
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};
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static int pending_scan_results_length;
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static struct pending_scan_result *pending_scan_results_buffer;
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#define MAX_PENDING_SCAN_RESULTS (OPENDOUS_MAX_INPUT_DATA)
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/* JTAG usb commands */
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#define JTAG_CMD_TAP_OUTPUT 0x0
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#define JTAG_CMD_SET_TRST 0x1
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#define JTAG_CMD_SET_SRST 0x2
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#define JTAG_CMD_READ_INPUT 0x3
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#define JTAG_CMD_TAP_OUTPUT_EMU 0x4
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#define JTAG_CMD_SET_DELAY 0x5
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#define JTAG_CMD_SET_SRST_TRST 0x6
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#define JTAG_CMD_READ_CONFIG 0x7
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/* usbvlab control transfer */
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#define FUNC_START_BOOTLOADER 30
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#define FUNC_WRITE_DATA 0x50
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#define FUNC_READ_DATA 0x51
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static char *opendous_type;
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static const struct opendous_probe *opendous_probe;
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/* External interface functions */
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static int opendous_execute_queue(void);
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static int opendous_init(void);
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static int opendous_quit(void);
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/* Queue command functions */
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static void opendous_end_state(tap_state_t state);
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static void opendous_state_move(void);
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static void opendous_path_move(int num_states, tap_state_t *path);
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static void opendous_runtest(int num_cycles);
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static void opendous_scan(int ir_scan, enum scan_type type, uint8_t *buffer,
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int scan_size, struct scan_command *command);
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static void opendous_reset(int trst, int srst);
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static void opendous_simple_command(uint8_t command, uint8_t _data);
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static int opendous_get_status(void);
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/* opendous tap buffer functions */
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static void opendous_tap_init(void);
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static int opendous_tap_execute(void);
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static void opendous_tap_ensure_space(int scans, int bits);
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static void opendous_tap_append_step(int tms, int tdi);
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static void opendous_tap_append_scan(int length, uint8_t *buffer, struct scan_command *command);
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/* opendous lowlevel functions */
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struct opendous_jtag {
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struct libusb_device_handle *usb_handle;
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};
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static struct opendous_jtag *opendous_usb_open(void);
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static void opendous_usb_close(struct opendous_jtag *opendous_jtag);
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static int opendous_usb_message(struct opendous_jtag *opendous_jtag, int out_length, int in_length);
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static int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_length);
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static int opendous_usb_read(struct opendous_jtag *opendous_jtag);
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/* helper functions */
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static int opendous_get_version_info(void);
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#ifdef _DEBUG_USB_COMMS_
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static void opendous_debug_buffer(uint8_t *buffer, int length);
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#endif
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static struct opendous_jtag *opendous_jtag_handle;
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/***************************************************************************/
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/* External interface implementation */
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COMMAND_HANDLER(opendous_handle_opendous_type_command)
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{
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if (CMD_ARGC == 0)
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return ERROR_OK;
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/* only if the cable name wasn't overwritten by cmdline */
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if (!opendous_type) {
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/* REVISIT first verify that it's listed in cables[] ... */
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opendous_type = strdup(CMD_ARGV[0]);
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}
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/* REVISIT it's probably worth returning the current value ... */
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return ERROR_OK;
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}
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COMMAND_HANDLER(opendous_handle_opendous_info_command)
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{
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if (opendous_get_version_info() == ERROR_OK) {
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/* attempt to get status */
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opendous_get_status();
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}
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return ERROR_OK;
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}
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COMMAND_HANDLER(opendous_handle_opendous_hw_jtag_command)
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{
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switch (CMD_ARGC) {
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case 0:
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command_print(CMD, "opendous hw jtag %i", opendous_hw_jtag_version);
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break;
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case 1: {
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int request_version = atoi(CMD_ARGV[0]);
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switch (request_version) {
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case 2:
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case 3:
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opendous_hw_jtag_version = request_version;
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break;
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default:
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return ERROR_COMMAND_SYNTAX_ERROR;
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}
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break;
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}
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default:
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return ERROR_COMMAND_SYNTAX_ERROR;
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}
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return ERROR_OK;
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}
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static const struct command_registration opendous_command_handlers[] = {
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{
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.name = "opendous_info",
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.handler = &opendous_handle_opendous_info_command,
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.mode = COMMAND_EXEC,
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.help = "show opendous info",
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.usage = "",
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},
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{
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.name = "opendous_hw_jtag",
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.handler = &opendous_handle_opendous_hw_jtag_command,
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.mode = COMMAND_EXEC,
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.help = "access opendous HW JTAG command version",
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.usage = "[2|3]",
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},
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{
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.name = "opendous_type",
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.handler = &opendous_handle_opendous_type_command,
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.mode = COMMAND_CONFIG,
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.help = "set opendous type",
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.usage = "[usbvlab|usbprog-jtag|opendous]",
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},
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COMMAND_REGISTRATION_DONE
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};
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static struct jtag_interface opendous_interface = {
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.execute_queue = opendous_execute_queue,
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};
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struct adapter_driver opendous_adapter_driver = {
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.name = "opendous",
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.transports = jtag_only,
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.commands = opendous_command_handlers,
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.init = opendous_init,
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.quit = opendous_quit,
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.jtag_ops = &opendous_interface,
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};
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static int opendous_execute_queue(void)
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{
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struct jtag_command *cmd = jtag_command_queue;
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int scan_size;
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enum scan_type type;
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uint8_t *buffer;
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while (cmd) {
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switch (cmd->type) {
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case JTAG_RUNTEST:
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LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
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cmd->cmd.runtest->end_state);
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if (cmd->cmd.runtest->end_state != -1)
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opendous_end_state(cmd->cmd.runtest->end_state);
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opendous_runtest(cmd->cmd.runtest->num_cycles);
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break;
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case JTAG_TLR_RESET:
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LOG_DEBUG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
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if (cmd->cmd.statemove->end_state != -1)
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opendous_end_state(cmd->cmd.statemove->end_state);
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opendous_state_move();
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break;
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case JTAG_PATHMOVE:
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LOG_DEBUG_IO("pathmove: %i states, end in %i",
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cmd->cmd.pathmove->num_states,
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cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
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opendous_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
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break;
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case JTAG_SCAN:
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LOG_DEBUG_IO("scan end in %i", cmd->cmd.scan->end_state);
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if (cmd->cmd.scan->end_state != -1)
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opendous_end_state(cmd->cmd.scan->end_state);
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scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
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LOG_DEBUG_IO("scan input, length = %d", scan_size);
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#ifdef _DEBUG_USB_COMMS_
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opendous_debug_buffer(buffer, (scan_size + 7) / 8);
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#endif
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type = jtag_scan_type(cmd->cmd.scan);
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opendous_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan);
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break;
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case JTAG_RESET:
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LOG_DEBUG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
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opendous_tap_execute();
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if (cmd->cmd.reset->trst == 1)
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tap_set_state(TAP_RESET);
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opendous_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
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break;
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case JTAG_SLEEP:
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LOG_DEBUG_IO("sleep %" PRIu32, cmd->cmd.sleep->us);
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opendous_tap_execute();
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jtag_sleep(cmd->cmd.sleep->us);
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break;
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default:
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LOG_ERROR("BUG: unknown JTAG command type encountered");
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exit(-1);
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}
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cmd = cmd->next;
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}
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return opendous_tap_execute();
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}
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static int opendous_init(void)
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{
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int check_cnt;
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const struct opendous_probe *cur_opendous_probe;
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cur_opendous_probe = opendous_probes;
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if (!opendous_type) {
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opendous_type = strdup("opendous");
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LOG_WARNING("No opendous_type specified, using default 'opendous'");
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}
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while (cur_opendous_probe->name) {
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if (strcmp(cur_opendous_probe->name, opendous_type) == 0) {
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opendous_probe = cur_opendous_probe;
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break;
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}
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cur_opendous_probe++;
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}
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if (!opendous_probe) {
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LOG_ERROR("No matching cable found for %s", opendous_type);
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return ERROR_JTAG_INIT_FAILED;
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}
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usb_in_buffer = malloc(opendous_probe->BUFFERSIZE);
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usb_out_buffer = malloc(opendous_probe->BUFFERSIZE);
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pending_scan_results_buffer = malloc(
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MAX_PENDING_SCAN_RESULTS * sizeof(*pending_scan_results_buffer));
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opendous_jtag_handle = opendous_usb_open();
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if (opendous_jtag_handle == 0) {
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LOG_ERROR("Cannot find opendous Interface! Please check connection and permissions.");
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return ERROR_JTAG_INIT_FAILED;
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}
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check_cnt = 0;
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while (check_cnt < 3) {
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if (opendous_get_version_info() == ERROR_OK) {
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/* attempt to get status */
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opendous_get_status();
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break;
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}
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check_cnt++;
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}
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LOG_INFO("opendous JTAG Interface ready");
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opendous_reset(0, 0);
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opendous_tap_init();
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return ERROR_OK;
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}
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static int opendous_quit(void)
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{
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opendous_usb_close(opendous_jtag_handle);
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free(usb_out_buffer);
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usb_out_buffer = NULL;
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free(usb_in_buffer);
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usb_in_buffer = NULL;
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free(pending_scan_results_buffer);
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pending_scan_results_buffer = NULL;
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free(opendous_type);
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opendous_type = NULL;
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return ERROR_OK;
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}
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/***************************************************************************/
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/* Queue command implementations */
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void opendous_end_state(tap_state_t state)
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{
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if (tap_is_state_stable(state))
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tap_set_end_state(state);
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else {
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LOG_ERROR("BUG: %i is not a valid end state", state);
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exit(-1);
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}
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}
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/* Goes to the end state. */
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void opendous_state_move(void)
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{
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int i;
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int tms = 0;
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uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
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uint8_t tms_scan_bits = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
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for (i = 0; i < tms_scan_bits; i++) {
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tms = (tms_scan >> i) & 1;
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opendous_tap_append_step(tms, 0);
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}
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tap_set_state(tap_get_end_state());
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}
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void opendous_path_move(int num_states, tap_state_t *path)
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{
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int i;
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for (i = 0; i < num_states; i++) {
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if (path[i] == tap_state_transition(tap_get_state(), false))
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opendous_tap_append_step(0, 0);
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else if (path[i] == tap_state_transition(tap_get_state(), true))
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opendous_tap_append_step(1, 0);
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else {
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LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
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tap_state_name(tap_get_state()), tap_state_name(path[i]));
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exit(-1);
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}
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tap_set_state(path[i]);
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}
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tap_set_end_state(tap_get_state());
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}
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void opendous_runtest(int num_cycles)
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{
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int i;
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tap_state_t saved_end_state = tap_get_end_state();
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/* only do a state_move when we're not already in IDLE */
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if (tap_get_state() != TAP_IDLE) {
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opendous_end_state(TAP_IDLE);
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opendous_state_move();
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}
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/* execute num_cycles */
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for (i = 0; i < num_cycles; i++)
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opendous_tap_append_step(0, 0);
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/* finish in end_state */
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opendous_end_state(saved_end_state);
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if (tap_get_state() != tap_get_end_state())
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opendous_state_move();
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}
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void opendous_scan(int ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command)
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{
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tap_state_t saved_end_state;
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opendous_tap_ensure_space(1, scan_size + 8);
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saved_end_state = tap_get_end_state();
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/* Move to appropriate scan state */
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opendous_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
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if (tap_get_state() != tap_get_end_state())
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opendous_state_move();
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opendous_end_state(saved_end_state);
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/* Scan */
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opendous_tap_append_scan(scan_size, buffer, command);
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/* We are in Exit1, go to Pause */
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opendous_tap_append_step(0, 0);
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tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
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|
|
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;
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
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 libusb_device_handle *devh;
|
|
if (jtag_libusb_open(opendous_probe->VID, opendous_probe->PID, &devh, NULL) != ERROR_OK)
|
|
return NULL;
|
|
|
|
jtag_libusb_set_configuration(devh, 0);
|
|
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 {
|
|
jtag_libusb_bulk_write(opendous_jtag->usb_handle, OPENDOUS_WRITE_ENDPOINT,
|
|
(char *)usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT, &result);
|
|
}
|
|
#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 {
|
|
jtag_libusb_bulk_read(opendous_jtag->usb_handle, OPENDOUS_READ_ENDPOINT,
|
|
(char *)usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT, &result);
|
|
}
|
|
#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
|