1332 lines
34 KiB
C
1332 lines
34 KiB
C
/***************************************************************************
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* Copyright (C) 2007 by Simon Qian <SimonQian@SimonQian.com> *
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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, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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/* Versaloon is a programming tool for multiple MCUs.
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* OpenOCD and MSP430 supports are distributed under GPLv2.
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* You can find it at http://www.SimonQian.com/en/Versaloon.
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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 "replacements.h"
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#include "jtag.h"
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#include <usb.h>
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#include <string.h>
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#include "log.h"
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//#define _VSLLINK_IN_DEBUG_MODE_
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/* enable this to view USB communication
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*/
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#if 0
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#define _DEBUG_USB_COMMS_
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#endif
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#ifdef _DEBUG_JTAG_IO_
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#define DEBUG_JTAG_IO(expr ...) LOG_DEBUG(expr)
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#else
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#define DEBUG_JTAG_IO(expr ...)
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#endif
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#define VID 0x03EB
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#define PID 0x2103
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#define VSLLINK_WRITE_ENDPOINT 0x02
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#define VSLLINK_READ_ENDPOINT 0x82
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u16 vsllink_vid = VID;
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u16 vsllink_pid = PID;
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u8 vsllink_bulkout = VSLLINK_WRITE_ENDPOINT;
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u8 vsllink_bulkin = VSLLINK_READ_ENDPOINT;
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#define VSLLINK_USB_TIMEOUT 1000
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static int VSLLINK_BufferSize = 1024;
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/* Global USB buffers */
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static int vsllink_usb_out_buffer_idx;
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static int vsllink_usb_in_want_length;
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static u8* vsllink_usb_in_buffer = NULL;
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static u8* vsllink_usb_out_buffer = NULL;
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/* Constants for VSLLink command */
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#define VSLLINK_CMD_CONN 0x80
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#define VSLLINK_CMD_DISCONN 0x81
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#define VSLLINK_CMD_SET_SPEED 0x82
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#define VSLLINK_CMD_SET_PORT 0x90
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#define VSLLINK_CMD_GET_PORT 0x91
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#define VSLLINK_CMD_SET_PORTDIR 0x92
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#define VSLLINK_CMD_HW_JTAGSEQCMD 0xA0
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#define VSLLINK_CMDJTAGSEQ_TMSBYTE 0x00
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#define VSLLINK_CMDJTAGSEQ_SCAN 0x80
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#define VSLLINK_CMDJTAGSEQ_CMDMSK 0xC0
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#define VSLLINK_CMDJTAGSEQ_LENMSK 0x3F
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#define JTAG_PINMSK_SRST (1 << 0)
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#define JTAG_PINMSK_TRST (1 << 1)
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#define JTAG_PINMSK_USR1 (1 << 2)
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#define JTAG_PINMSK_USR2 (1 << 3)
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#define JTAG_PINMSK_TCK (1 << 4)
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#define JTAG_PINMSK_TMS (1 << 5)
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#define JTAG_PINMSK_TDI (1 << 6)
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#define JTAG_PINMSK_TDO (1 << 7)
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#define VSLLINK_TAP_MOVE(from, to) VSLLINK_tap_move[tap_move_map[from]][tap_move_map[to]]
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/* VSLLINK_tap_move[i][j]: tap movement command to go from state i to state j
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* 0: Test-Logic-Reset
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* 1: Run-Test/Idle
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* 2: Shift-DR
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* 3: Pause-DR
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* 4: Shift-IR
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* 5: Pause-IR
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*
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* SD->SD and SI->SI have to be caught in interface specific code
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*/
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u8 VSLLINK_tap_move[6][6] =
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{
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/* TLR RTI SD PD SI PI */
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{0xff, 0x00, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */
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{0xff, 0x00, 0x45, 0x05, 0x4b, 0x0b}, /* RTI */
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{0xff, 0x61, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
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{0xff, 0x60, 0x40, 0x17, 0x3c, 0x2f}, /* PD */
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{0xff, 0x61, 0x07, 0x17, 0x00, 0x01}, /* SI */
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{0xff, 0x60, 0x38, 0x17, 0x40, 0x2f} /* PI */
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};
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u8 VSLLINK_TAP_MOVE_FROM_E1[6] =
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{
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// TLR RTI SD PD SI PI
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0xff, 0x60, 0x38, 0x5c, 0x3c, 0x5E
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};
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u8 VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[7][6][2] =
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{
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/* stuff offset */
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{/* TLR */
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{1, 0,}, /* TLR */
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{1, 0,}, /* RTI */
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{1, 0,}, /* SD */
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{1, 0,}, /* PD */
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{1, 0,}, /* SI */
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{1, 0,}}, /* PI */
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{/* RTI */
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{1, 0,}, /* TLR */
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{0, 0,}, /* RTI */
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{0, 4,}, /* SD */
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{0, 7,}, /* PD */
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{0, 5,}, /* SI */
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{0, 7,}}, /* PI */
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{/* SD */
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{0, 0,}, /* TLR */
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{0, 0,}, /* RTI */
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{0, 0,}, /* SD */
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{0, 0,}, /* PD */
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{0, 0,}, /* SI */
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{0, 0,}}, /* PI */
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{/* PD */
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{0, 0,}, /* TLR */
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{0, 0,}, /* RTI */
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{0, 0,}, /* SD */
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{0, 0,}, /* PD */
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{0, 0,}, /* SI */
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{0, 0,}}, /* PI */
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{/* SI */
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{0, 0,}, /* TLR */
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{0, 0,}, /* RTI */
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{0, 0,}, /* SD */
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{0, 0,}, /* PD */
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{0, 0,}, /* SI */
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{0, 0,}}, /* PI */
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{/* PI */
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{0, 0,}, /* TLR */
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{0, 0,}, /* RTI */
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{0, 0,}, /* SD */
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{0, 0,}, /* PD */
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{0, 0,}, /* SI */
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{0, 0,}}, /* PI */
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};
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u8 VSLLINK_BIT_MSK[8] =
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{
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0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
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};
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/* External interface functions */
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int vsllink_execute_queue(void);
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int vsllink_speed(int speed);
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int vsllink_khz(int khz, int *jtag_speed);
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int vsllink_speed_div(int jtag_speed, int *khz);
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int vsllink_register_commands(struct command_context_s *cmd_ctx);
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int vsllink_init(void);
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int vsllink_quit(void);
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/* CLI command handler functions */
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int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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/* Queue command functions */
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void vsllink_end_state(enum tap_state state);
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void vsllink_state_move(void);
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void vsllink_path_move(int num_states, enum tap_state *path);
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void vsllink_runtest(int num_cycles);
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void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command);
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void vsllink_reset(int trst, int srst);
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void vsllink_simple_command(u8 command);
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/* VSLLink tap buffer functions */
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void vsllink_tap_init(void);
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int vsllink_tap_execute(void);
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void vsllink_tap_ensure_space(int scans, int bytes);
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void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *command, int offset);
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/* VSLLink lowlevel functions */
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typedef struct vsllink_jtag
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{
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struct usb_dev_handle* usb_handle;
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} vsllink_jtag_t;
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vsllink_jtag_t *vsllink_usb_open(void);
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void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag);
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int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length);
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int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length);
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int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag);
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void vsllink_debug_buffer(u8 *buffer, int length);
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int vsllink_tms_data_len = 0;
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u8* vsllink_tms_cmd_pos;
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vsllink_jtag_t* vsllink_jtag_handle;
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/***************************************************************************/
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/* External interface implementation */
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jtag_interface_t vsllink_interface =
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{
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.name = "vsllink",
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.execute_queue = vsllink_execute_queue,
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.speed = vsllink_speed,
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.khz = vsllink_khz,
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.speed_div = vsllink_speed_div,
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.register_commands = vsllink_register_commands,
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.init = vsllink_init,
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.quit = vsllink_quit
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};
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int vsllink_execute_queue(void)
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{
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jtag_command_t *cmd = jtag_command_queue;
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int scan_size;
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enum scan_type type;
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u8 *buffer;
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DEBUG_JTAG_IO("--------------------------------------------------------------------------------");
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vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
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vsllink_usb_out_buffer_idx = 3;
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while (cmd != NULL)
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{
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switch (cmd->type)
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{
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case JTAG_END_STATE:
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DEBUG_JTAG_IO("end_state: %i", cmd->cmd.end_state->end_state);
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if (cmd->cmd.end_state->end_state != -1)
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{
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vsllink_end_state(cmd->cmd.end_state->end_state);
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}
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break;
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case JTAG_RUNTEST:
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DEBUG_JTAG_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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{
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vsllink_end_state(cmd->cmd.runtest->end_state);
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}
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vsllink_runtest(cmd->cmd.runtest->num_cycles);
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break;
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case JTAG_STATEMOVE:
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DEBUG_JTAG_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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{
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vsllink_end_state(cmd->cmd.statemove->end_state);
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}
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vsllink_state_move();
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break;
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case JTAG_PATHMOVE:
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DEBUG_JTAG_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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vsllink_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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if (cmd->cmd.scan->end_state != -1)
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{
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vsllink_end_state(cmd->cmd.scan->end_state);
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}
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scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
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if (cmd->cmd.scan->ir_scan)
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{
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DEBUG_JTAG_IO("JTAG Scan write IR(%d bits), end in %d:", scan_size, cmd->cmd.scan->end_state);
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}
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else
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{
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DEBUG_JTAG_IO("JTAG Scan write DR(%d bits), end in %d:", scan_size, cmd->cmd.scan->end_state);
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}
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#ifdef _DEBUG_JTAG_IO_
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vsllink_debug_buffer(buffer, (scan_size + 7) >> 3);
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#endif
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type = jtag_scan_type(cmd->cmd.scan);
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vsllink_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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DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
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vsllink_tap_execute();
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if (cmd->cmd.reset->trst == 1)
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{
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cur_state = TAP_RESET;
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}
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vsllink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
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vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
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vsllink_usb_out_buffer_idx = 3;
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break;
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case JTAG_SLEEP:
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DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
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vsllink_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 vsllink_tap_execute();
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}
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int vsllink_speed(int speed)
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{
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int result;
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vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_SPEED;
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vsllink_usb_out_buffer[1] = (speed >> 0) & 0xff;
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vsllink_usb_out_buffer[2] = (speed >> 8) & 0xFF;
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result = vsllink_usb_write(vsllink_jtag_handle, 3);
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if (result == 3)
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{
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return ERROR_OK;
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}
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else
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{
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LOG_ERROR("VSLLink setting speed failed (%d)", result);
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return ERROR_JTAG_DEVICE_ERROR;
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}
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return ERROR_OK;
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}
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int vsllink_khz(int khz, int *jtag_speed)
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{
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*jtag_speed = khz;
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return ERROR_OK;
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}
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int vsllink_speed_div(int jtag_speed, int *khz)
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{
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*khz = jtag_speed;
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return ERROR_OK;
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}
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int vsllink_register_commands(struct command_context_s *cmd_ctx)
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{
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register_command(cmd_ctx, NULL, "vsllink_usb_vid", vsllink_handle_usb_vid_command,
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COMMAND_CONFIG, NULL);
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register_command(cmd_ctx, NULL, "vsllink_usb_pid", vsllink_handle_usb_pid_command,
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COMMAND_CONFIG, NULL);
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register_command(cmd_ctx, NULL, "vsllink_usb_bulkin", vsllink_handle_usb_bulkin_command,
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COMMAND_CONFIG, NULL);
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register_command(cmd_ctx, NULL, "vsllink_usb_bulkout", vsllink_handle_usb_bulkout_command,
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COMMAND_CONFIG, NULL);
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return ERROR_OK;
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}
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int vsllink_init(void)
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{
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int check_cnt;
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int result;
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char version_str[100];
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vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize);
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vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize);
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if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL))
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{
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LOG_ERROR("Not enough memory");
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exit(-1);
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}
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vsllink_jtag_handle = vsllink_usb_open();
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if (vsllink_jtag_handle == 0)
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{
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LOG_ERROR("Can't find USB JTAG 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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{
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vsllink_simple_command(VSLLINK_CMD_CONN);
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result = vsllink_usb_read(vsllink_jtag_handle);
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if (result > 2)
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{
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vsllink_usb_in_buffer[result] = 0;
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VSLLINK_BufferSize = vsllink_usb_in_buffer[0] + (vsllink_usb_in_buffer[1] << 8);
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strncpy(version_str, (char *)vsllink_usb_in_buffer + 2, sizeof(version_str));
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LOG_INFO(version_str);
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// free the pre-alloc memroy
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free(vsllink_usb_in_buffer);
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free(vsllink_usb_out_buffer);
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vsllink_usb_in_buffer = NULL;
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vsllink_usb_out_buffer = NULL;
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// alloc new memory
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vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize);
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vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize);
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if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL))
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{
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LOG_ERROR("Not enough memory");
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exit(-1);
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}
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else
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{
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LOG_INFO("buffer size for USB is %d bytes", VSLLINK_BufferSize);
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}
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break;
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}
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vsllink_simple_command(VSLLINK_CMD_DISCONN);
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check_cnt++;
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}
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if (check_cnt == 3)
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{
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// It's dangerout to proced
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LOG_ERROR("VSLLink initial failed");
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exit(-1);
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}
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// Set SRST and TRST to output, Set USR1 and USR2 to input
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vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORTDIR;
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vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST | JTAG_PINMSK_USR1 | JTAG_PINMSK_USR2;
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vsllink_usb_out_buffer[2] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST;
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result = vsllink_usb_write(vsllink_jtag_handle, 3);
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if (result != 3)
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{
|
|
LOG_ERROR("VSLLink USB send data error");
|
|
exit(-1);
|
|
}
|
|
|
|
vsllink_reset(0, 0);
|
|
|
|
LOG_INFO("VSLLink JTAG Interface ready");
|
|
|
|
vsllink_tap_init();
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
int vsllink_quit(void)
|
|
{
|
|
if ((vsllink_usb_in_buffer != NULL) && (vsllink_usb_out_buffer != NULL))
|
|
{
|
|
vsllink_simple_command(VSLLINK_CMD_DISCONN);
|
|
vsllink_usb_close(vsllink_jtag_handle);
|
|
}
|
|
|
|
if (vsllink_usb_in_buffer != NULL)
|
|
{
|
|
free(vsllink_usb_in_buffer);
|
|
}
|
|
if (vsllink_usb_out_buffer != NULL)
|
|
{
|
|
free(vsllink_usb_out_buffer);
|
|
}
|
|
return ERROR_OK;
|
|
}
|
|
|
|
// when vsllink_tms_data_len > 0, vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] is the byte that need to be appended.
|
|
// length of VSLLINK_CMDJTAGSEQ_TMSBYTE has been set.
|
|
void VSLLINK_add_tms_from_RTI(enum tap_state state)
|
|
{
|
|
u8 tms_scan = VSLLINK_TAP_MOVE(TAP_IDLE, state);
|
|
u16 tms2;
|
|
|
|
if ((cur_state != TAP_IDLE) || (state == TAP_IDLE) || (vsllink_tms_data_len <= 0) || (vsllink_tms_data_len >= 8) || (vsllink_tms_cmd_pos == NULL))
|
|
{
|
|
LOG_ERROR("There MUST be some bugs in the driver");
|
|
exit(-1);
|
|
}
|
|
|
|
tms2 = (tms_scan & VSLLINK_BIT_MSK[VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]]) << vsllink_tms_data_len;
|
|
if (VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][0] == 1)
|
|
{
|
|
tms2 |= VSLLINK_BIT_MSK[8 - vsllink_tms_data_len] << (vsllink_tms_data_len + VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]);
|
|
}
|
|
tms2 |= (tms_scan >> VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]) << (8 + VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[1][tap_move_map[state]][1]);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (tms2 >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms2 >> 8) & 0xff;
|
|
|
|
vsllink_tms_data_len = 0;
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* Queue command implementations */
|
|
|
|
void vsllink_end_state(enum tap_state state)
|
|
{
|
|
if (tap_move_map[state] != -1)
|
|
{
|
|
end_state = state;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("BUG: %i is not a valid end state", state);
|
|
exit(-1);
|
|
}
|
|
}
|
|
|
|
/* Goes to the end state. */
|
|
void vsllink_state_move(void)
|
|
{
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
VSLLINK_add_tms_from_RTI(end_state);
|
|
}
|
|
else
|
|
{
|
|
vsllink_tap_ensure_space(0, 2);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(cur_state, end_state);
|
|
}
|
|
|
|
cur_state = end_state;
|
|
}
|
|
|
|
// write tms from current vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]
|
|
void vsllink_add_path(int start, int num, enum tap_state *path)
|
|
{
|
|
int i;
|
|
|
|
for (i = start; i < (start + num); i++)
|
|
{
|
|
if ((i & 7) == 0)
|
|
{
|
|
if (i > 0)
|
|
{
|
|
vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
|
|
}
|
|
}
|
|
|
|
if (path[i - start] == tap_transitions[cur_state].high)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] |= 1 << (i & 7);
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("BUG: %d -> %d isn't a valid TAP transition", cur_state, path[i]);
|
|
exit(-1);
|
|
}
|
|
|
|
cur_state = path[i];
|
|
}
|
|
end_state = cur_state;
|
|
}
|
|
|
|
void vsllink_path_move(int num_states, enum tap_state *path)
|
|
{
|
|
int i, tms_len, tms_cmd_pos, path_idx = 0;
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if ((vsllink_tms_data_len + num_states) < 8)
|
|
{
|
|
vsllink_add_path(vsllink_tms_data_len, num_states, path);
|
|
num_states = 0;
|
|
}
|
|
else if ((vsllink_tms_data_len + num_states) < 16)
|
|
{
|
|
if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) \
|
|
< VSLLINK_CMDJTAGSEQ_LENMSK)
|
|
{
|
|
*vsllink_tms_cmd_pos++;
|
|
vsllink_add_path(vsllink_tms_data_len, num_states, path);
|
|
}
|
|
else
|
|
{
|
|
// need a new VSLLINK_CMDJTAGSEQ_TMSBYTE command
|
|
// if vsllink_tms_data_len > 0, length of VSLLINK_CMDJTAGSEQ_TMSBYTE MUST be > 1(tms_len > 2)
|
|
*vsllink_tms_cmd_pos--;
|
|
vsllink_add_path(vsllink_tms_data_len, 8 - vsllink_tms_data_len, path);
|
|
vsllink_usb_out_buffer_idx++;
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
vsllink_tms_cmd_pos = vsllink_usb_out_buffer + vsllink_usb_out_buffer_idx;
|
|
vsllink_add_path(vsllink_tms_data_len, num_states + vsllink_tms_data_len - 8, path + 8 - vsllink_tms_data_len);
|
|
}
|
|
vsllink_tms_data_len = (vsllink_tms_data_len + num_states) & 7;
|
|
num_states = 0;
|
|
}
|
|
else
|
|
{
|
|
vsllink_add_path(vsllink_tms_data_len, 16 - vsllink_tms_data_len, path);
|
|
path_idx = 16 - vsllink_tms_data_len;
|
|
vsllink_usb_out_buffer_idx++;
|
|
|
|
num_states -= 16 - vsllink_tms_data_len;
|
|
path += 16 - vsllink_tms_data_len;
|
|
vsllink_tms_data_len = 0;
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
}
|
|
|
|
if (num_states > 0)
|
|
{
|
|
// Normal operation, don't need to append tms data
|
|
vsllink_tms_data_len = num_states & 7;
|
|
|
|
while (num_states > 0)
|
|
{
|
|
if (num_states > ((VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8))
|
|
{
|
|
i = (VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8;
|
|
}
|
|
else
|
|
{
|
|
i = num_states;
|
|
}
|
|
tms_len = (i + 7) >> 3;
|
|
vsllink_tap_ensure_space(0, tms_len + 2);
|
|
tms_cmd_pos = vsllink_usb_out_buffer_idx;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | (tms_len - 1);
|
|
|
|
vsllink_add_path(0, i, path + path_idx);
|
|
|
|
path_idx += i;
|
|
num_states -= i;
|
|
}
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if (tms_len < (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
|
|
{
|
|
vsllink_usb_out_buffer[tms_cmd_pos]++;
|
|
vsllink_usb_out_buffer = vsllink_usb_out_buffer + tms_cmd_pos;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[tms_cmd_pos]--;
|
|
tms_len = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = tms_len;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void vsllink_runtest(int num_cycles)
|
|
{
|
|
int i = 0, j;
|
|
int tms_len, first_tms = 0, tms_cmd_pos = 0;
|
|
enum tap_state saved_end_state = end_state;
|
|
|
|
if (cur_state != TAP_IDLE)
|
|
{
|
|
vsllink_end_state(TAP_IDLE);
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
VSLLINK_add_tms_from_RTI(end_state);
|
|
}
|
|
else
|
|
{
|
|
first_tms = 1;
|
|
}
|
|
}
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
// cur_state == TAP_IDLE
|
|
if ((vsllink_tms_data_len + num_cycles) < 8)
|
|
{
|
|
vsllink_tms_data_len += num_cycles;
|
|
num_cycles = 0;
|
|
}
|
|
else if ((vsllink_tms_data_len + num_cycles) < 16)
|
|
{
|
|
if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) \
|
|
< VSLLINK_CMDJTAGSEQ_LENMSK)
|
|
{
|
|
*vsllink_tms_cmd_pos++;
|
|
vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
|
|
}
|
|
else
|
|
{
|
|
// need a new VSLLINK_CMDJTAGSEQ_TMSBYTE command
|
|
// if vsllink_tms_data_len > 0, length of VSLLINK_CMDJTAGSEQ_TMSBYTE MUST be > 1(tms_len > 2)
|
|
*vsllink_tms_cmd_pos--;
|
|
vsllink_tap_ensure_space(0, 3);
|
|
vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
|
|
vsllink_tms_cmd_pos = vsllink_usb_out_buffer + vsllink_usb_out_buffer_idx;
|
|
vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
|
|
}
|
|
vsllink_tms_data_len = (vsllink_tms_data_len + num_cycles) & 7;
|
|
num_cycles = 0;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[++vsllink_usb_out_buffer_idx] = 0;
|
|
vsllink_usb_out_buffer_idx++;
|
|
|
|
num_cycles -= 16 - vsllink_tms_data_len;
|
|
vsllink_tms_data_len = 0;
|
|
vsllink_tms_cmd_pos = NULL;
|
|
}
|
|
}
|
|
|
|
tms_len = ((num_cycles + 7) >> 3) + first_tms;
|
|
if (tms_len > 0)
|
|
{
|
|
// Normal operation, don't need to append tms data
|
|
vsllink_tms_data_len = num_cycles & 7;
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
tms_len += 1;
|
|
}
|
|
// tms_len includes the length of tms byte to append
|
|
|
|
// Make sure there is enough space
|
|
// 1 more byte maybe needed for the last tms move
|
|
vsllink_tap_ensure_space(0, (tms_len / VSLLINK_CMDJTAGSEQ_LENMSK) + tms_len + 1);
|
|
|
|
while(tms_len > 0)
|
|
{
|
|
if (tms_len > (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
|
|
{
|
|
i = VSLLINK_CMDJTAGSEQ_LENMSK + 1;
|
|
}
|
|
else
|
|
{
|
|
i = tms_len;
|
|
}
|
|
|
|
tms_cmd_pos = vsllink_usb_out_buffer_idx;
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | (i - 1);
|
|
|
|
if (first_tms)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(cur_state, end_state);
|
|
first_tms = 0;
|
|
j = i - 1;
|
|
}
|
|
else
|
|
{
|
|
j = i;
|
|
}
|
|
|
|
while (j-- > 0)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
}
|
|
|
|
tms_len -= i;
|
|
}
|
|
|
|
// post process vsllink_usb_out_buffer_idx
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
vsllink_usb_out_buffer_idx -= 2;
|
|
}
|
|
|
|
// Set end_state
|
|
vsllink_end_state(saved_end_state);
|
|
cur_state = TAP_IDLE;
|
|
if (saved_end_state != TAP_IDLE)
|
|
{
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
VSLLINK_add_tms_from_RTI(end_state);
|
|
}
|
|
else
|
|
{
|
|
if (i < (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
|
|
{
|
|
vsllink_usb_out_buffer[tms_cmd_pos]++;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(TAP_IDLE, end_state);
|
|
}
|
|
else
|
|
{
|
|
vsllink_tap_ensure_space(0, 2);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(TAP_IDLE, end_state);
|
|
}
|
|
}
|
|
cur_state = saved_end_state;
|
|
}
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
vsllink_tms_cmd_pos = vsllink_usb_out_buffer + tms_cmd_pos;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Set end_state if no RTI shifts
|
|
vsllink_end_state(saved_end_state);
|
|
cur_state = TAP_IDLE;
|
|
if (saved_end_state != TAP_IDLE)
|
|
{
|
|
vsllink_tap_ensure_space(0, 2);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(TAP_IDLE, end_state);
|
|
|
|
cur_state = saved_end_state;
|
|
}
|
|
}
|
|
}
|
|
|
|
void vsllink_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size, scan_command_t *command)
|
|
{
|
|
enum tap_state saved_end_state;
|
|
u8 bits_left, tms_tmp, tdi_len;
|
|
int i;
|
|
|
|
tdi_len = ((scan_size + 7) >> 3);
|
|
if ((tdi_len + 7) > VSLLINK_BufferSize)
|
|
{
|
|
LOG_ERROR("Your implementation of VSLLink has not enough buffer");
|
|
exit(-1);
|
|
}
|
|
|
|
saved_end_state = end_state;
|
|
|
|
/* Move to appropriate scan state */
|
|
vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if (cur_state == end_state)
|
|
{
|
|
*vsllink_tms_cmd_pos--;
|
|
tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
|
|
vsllink_tap_ensure_space(1, tdi_len + 7);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1)>> 8) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = tms_tmp;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[0] << (8 - vsllink_tms_data_len);
|
|
|
|
for (i = 0; i < tdi_len; i++)
|
|
{
|
|
buffer[i] >>= 8 - vsllink_tms_data_len;
|
|
if (i != tdi_len)
|
|
{
|
|
buffer[i] += buffer[i + 1] << vsllink_tms_data_len;
|
|
}
|
|
}
|
|
|
|
vsllink_tap_append_scan(scan_size - vsllink_tms_data_len, buffer, command, vsllink_tms_data_len);
|
|
scan_size -= 8 - vsllink_tms_data_len;
|
|
}
|
|
else
|
|
{
|
|
VSLLINK_add_tms_from_RTI(end_state);
|
|
vsllink_tap_ensure_space(1, tdi_len + 5);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 8) & 0xff;
|
|
|
|
vsllink_tap_append_scan(scan_size, buffer, command, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
vsllink_tap_ensure_space(1, tdi_len + 7);
|
|
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1)>> 8) & 0xff;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(cur_state, end_state);
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
|
|
vsllink_tap_append_scan(scan_size, buffer, command, 8);
|
|
}
|
|
vsllink_end_state(saved_end_state);
|
|
|
|
bits_left = scan_size & 0x07;
|
|
cur_state = ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE;
|
|
|
|
if (bits_left > 0)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << (bits_left - 1);
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << 7;
|
|
}
|
|
|
|
if (cur_state != end_state)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE_FROM_E1[tap_move_map[end_state]];
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
}
|
|
|
|
cur_state = end_state;
|
|
}
|
|
|
|
void vsllink_reset(int trst, int srst)
|
|
{
|
|
int result;
|
|
|
|
LOG_DEBUG("trst: %i, srst: %i", trst, srst);
|
|
|
|
/* Signals are active low */
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORT;
|
|
vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST;
|
|
vsllink_usb_out_buffer[2] = 0;
|
|
if (srst == 0)
|
|
{
|
|
vsllink_usb_out_buffer[2] |= JTAG_PINMSK_SRST;
|
|
}
|
|
if (trst == 0)
|
|
{
|
|
vsllink_usb_out_buffer[2] |= JTAG_PINMSK_TRST;
|
|
}
|
|
|
|
result = vsllink_usb_write(vsllink_jtag_handle, 3);
|
|
if (result != 3)
|
|
{
|
|
LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result);
|
|
}
|
|
}
|
|
|
|
void vsllink_simple_command(u8 command)
|
|
{
|
|
int result;
|
|
|
|
DEBUG_JTAG_IO("0x%02x", command);
|
|
|
|
vsllink_usb_out_buffer[0] = command;
|
|
result = vsllink_usb_write(vsllink_jtag_handle, 1);
|
|
|
|
if (result != 1)
|
|
{
|
|
LOG_ERROR("VSLLink command 0x%02x failed (%d)", command, result);
|
|
}
|
|
}
|
|
|
|
int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
|
|
{
|
|
if (argc != 1) {
|
|
LOG_ERROR("parameter error, should be one parameter for VID");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
vsllink_vid = strtol(args[0], NULL, 0);
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
|
|
{
|
|
if (argc != 1) {
|
|
LOG_ERROR("parameter error, should be one parameter for PID");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
vsllink_pid = strtol(args[0], NULL, 0);
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
|
|
{
|
|
if (argc != 1) {
|
|
LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
vsllink_bulkin = strtol(args[0], NULL, 0) | 0x80;
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
|
|
{
|
|
if (argc != 1) {
|
|
LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint");
|
|
return ERROR_OK;
|
|
}
|
|
|
|
vsllink_bulkout = strtol(args[0], NULL, 0);
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* VSLLink tap functions */
|
|
|
|
typedef struct
|
|
{
|
|
int length; /* Number of bits to read */
|
|
int offset;
|
|
scan_command_t *command; /* Corresponding scan command */
|
|
u8 *buffer;
|
|
} pending_scan_result_t;
|
|
|
|
#define MAX_PENDING_SCAN_RESULTS 256
|
|
|
|
static int pending_scan_results_length;
|
|
static pending_scan_result_t pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
|
|
|
|
void vsllink_tap_init(void)
|
|
{
|
|
vsllink_usb_out_buffer_idx = 0;
|
|
vsllink_usb_in_want_length = 0;
|
|
pending_scan_results_length = 0;
|
|
}
|
|
|
|
void vsllink_tap_ensure_space(int scans, int bytes)
|
|
{
|
|
int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
|
|
int available_bytes = VSLLINK_BufferSize - vsllink_usb_out_buffer_idx;
|
|
|
|
if (scans > available_scans || bytes > available_bytes)
|
|
{
|
|
vsllink_tap_execute();
|
|
vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
|
|
vsllink_usb_out_buffer_idx = 3;
|
|
}
|
|
}
|
|
|
|
void vsllink_tap_append_scan(int length, u8 *buffer, scan_command_t *command, int offset)
|
|
{
|
|
pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
|
|
int i;
|
|
|
|
if (offset > 0)
|
|
{
|
|
vsllink_usb_in_want_length += ((length + 7) >> 3) + 1;
|
|
}
|
|
else
|
|
{
|
|
vsllink_usb_in_want_length += (length + 7) >> 3;
|
|
}
|
|
pending_scan_result->length = length;
|
|
pending_scan_result->offset = offset;
|
|
pending_scan_result->command = command;
|
|
pending_scan_result->buffer = buffer;
|
|
|
|
for (i = 0; i < ((length + 7) >> 3); i++)
|
|
{
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[i];
|
|
}
|
|
|
|
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 vsllink_tap_execute(void)
|
|
{
|
|
int i;
|
|
int result;
|
|
int first = 0;
|
|
|
|
if (vsllink_tms_data_len > 0)
|
|
{
|
|
if (vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] & (1 << (vsllink_tms_data_len - 1)))
|
|
{
|
|
// last tms bit is '1'
|
|
// the only possible state is TLR, no need to control the number of shifts in RLT
|
|
// There MUST be some errors in the code
|
|
LOG_ERROR("last tms bit is '1'");
|
|
exit(-1);
|
|
}
|
|
else
|
|
{
|
|
// last tms bit is '0'
|
|
vsllink_usb_out_buffer_idx++;
|
|
vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
|
|
vsllink_tms_data_len = 0;
|
|
}
|
|
}
|
|
|
|
if (vsllink_usb_out_buffer_idx > 3)
|
|
{
|
|
if (vsllink_usb_out_buffer[0] == VSLLINK_CMD_HW_JTAGSEQCMD)
|
|
{
|
|
vsllink_usb_out_buffer[1] = (vsllink_usb_out_buffer_idx >> 0) & 0xff;
|
|
vsllink_usb_out_buffer[2] = (vsllink_usb_out_buffer_idx >> 8) & 0xff;
|
|
}
|
|
|
|
result = vsllink_usb_message(vsllink_jtag_handle, vsllink_usb_out_buffer_idx, vsllink_usb_in_want_length);
|
|
|
|
if (result == vsllink_usb_in_want_length)
|
|
{
|
|
for (i = 0; i < pending_scan_results_length; i++)
|
|
{
|
|
pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[i];
|
|
u8 *buffer = pending_scan_result->buffer;
|
|
int length = pending_scan_result->length;
|
|
int offset = pending_scan_result->offset;
|
|
scan_command_t *command = pending_scan_result->command;
|
|
|
|
/* Copy to buffer */
|
|
buf_set_buf(vsllink_usb_in_buffer, first * 8 + offset, buffer, 0, length);
|
|
first += (length + offset + 7) >> 3;
|
|
|
|
DEBUG_JTAG_IO("JTAG scan read(%d bits):", length);
|
|
#ifdef _DEBUG_JTAG_IO_
|
|
vsllink_debug_buffer(buffer, (length + 7) >> 3);
|
|
#endif
|
|
|
|
if (jtag_read_buffer(buffer, command) != ERROR_OK)
|
|
{
|
|
vsllink_tap_init();
|
|
return ERROR_JTAG_QUEUE_FAILED;
|
|
}
|
|
|
|
if (pending_scan_result->buffer != NULL)
|
|
{
|
|
free(pending_scan_result->buffer);
|
|
pending_scan_result->buffer = NULL;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, vsllink_usb_in_want_length);
|
|
return ERROR_JTAG_QUEUE_FAILED;
|
|
}
|
|
|
|
vsllink_tap_init();
|
|
}
|
|
|
|
return ERROR_OK;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* VSLLink USB low-level functions */
|
|
|
|
vsllink_jtag_t* vsllink_usb_open(void)
|
|
{
|
|
struct usb_bus *busses;
|
|
struct usb_bus *bus;
|
|
struct usb_device *dev;
|
|
|
|
vsllink_jtag_t *result;
|
|
|
|
result = (vsllink_jtag_t*) malloc(sizeof(vsllink_jtag_t));
|
|
|
|
usb_init();
|
|
usb_find_busses();
|
|
usb_find_devices();
|
|
|
|
busses = usb_get_busses();
|
|
|
|
/* find vsllink_jtag device in usb bus */
|
|
|
|
for (bus = busses; bus; bus = bus->next)
|
|
{
|
|
for (dev = bus->devices; dev; dev = dev->next)
|
|
{
|
|
if ((dev->descriptor.idVendor == vsllink_vid) && (dev->descriptor.idProduct == vsllink_pid))
|
|
{
|
|
result->usb_handle = usb_open(dev);
|
|
|
|
/* usb_set_configuration required under win32 */
|
|
usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue);
|
|
usb_claim_interface(result->usb_handle, 0);
|
|
|
|
#if 0
|
|
/*
|
|
* This makes problems under Mac OS X. And is not needed
|
|
* under Windows. Hopefully this will not break a linux build
|
|
*/
|
|
usb_set_altinterface(result->usb_handle, 0);
|
|
#endif
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
|
|
free(result);
|
|
return NULL;
|
|
}
|
|
|
|
void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag)
|
|
{
|
|
usb_close(vsllink_jtag->usb_handle);
|
|
free(vsllink_jtag);
|
|
}
|
|
|
|
/* Send a message and receive the reply. */
|
|
int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length)
|
|
{
|
|
int result;
|
|
|
|
result = vsllink_usb_write(vsllink_jtag, out_length);
|
|
if (result == out_length)
|
|
{
|
|
if (in_length > 0)
|
|
{
|
|
result = vsllink_usb_read(vsllink_jtag);
|
|
if (result == in_length )
|
|
{
|
|
return result;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length, result);
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length, result);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* Write data from out_buffer to USB. */
|
|
int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length)
|
|
{
|
|
int result;
|
|
|
|
if (out_length > VSLLINK_BufferSize)
|
|
{
|
|
LOG_ERROR("vsllink_jtag_write illegal out_length=%d (max=%d)", out_length, VSLLINK_BufferSize);
|
|
return -1;
|
|
}
|
|
|
|
result = usb_bulk_write(vsllink_jtag->usb_handle, vsllink_bulkout, \
|
|
(char *)vsllink_usb_out_buffer, out_length, VSLLINK_USB_TIMEOUT);
|
|
|
|
DEBUG_JTAG_IO("vsllink_usb_write, out_length = %d, result = %d", out_length, result);
|
|
|
|
#ifdef _DEBUG_USB_COMMS_
|
|
LOG_DEBUG("USB out:");
|
|
vsllink_debug_buffer(vsllink_usb_out_buffer, out_length);
|
|
#endif
|
|
|
|
#ifdef _VSLLINK_IN_DEBUG_MODE_
|
|
usleep(100000);
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
|
|
/* Read data from USB into in_buffer. */
|
|
int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag)
|
|
{
|
|
int result = usb_bulk_read(vsllink_jtag->usb_handle, vsllink_bulkin, \
|
|
(char *)vsllink_usb_in_buffer, VSLLINK_BufferSize, VSLLINK_USB_TIMEOUT);
|
|
|
|
DEBUG_JTAG_IO("vsllink_usb_read, result = %d", result);
|
|
|
|
#ifdef _DEBUG_USB_COMMS_
|
|
LOG_DEBUG("USB in:");
|
|
vsllink_debug_buffer(vsllink_usb_in_buffer, result);
|
|
#endif
|
|
return result;
|
|
}
|
|
|
|
#define BYTES_PER_LINE 16
|
|
|
|
void vsllink_debug_buffer(u8 *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(line);
|
|
}
|
|
}
|