jt_usb_jlink_io.c File Reference

#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "dbg_msg.h"
#include "jt_tap.h"
#include "jt_io_usb.h"
#include "jt_arm.h"
#include "transaction.h"

Data Structures

Defines

Functions

Variables

Detailed Description

Test Access Port Controller Interface Support functions to access the JTAG interface of JLink based USB devices

Define Documentation

#define XMIT_DATA_BUFFER_SIZE   ((2*1024)-16)
#define XMIT_SIZE   (3+XMIT_DATA_BUFFER_SIZE)
#define READ_ENDPOINT   0x81
#define WRITE_ENDPOINT   0x02
#define JLINK_GET_VERSION   0x01

Referenced by jlinkGetVersion().

#define JLINK_GET_CAPABILITY   0xE8

Referenced by jlinkGetCapability().

#define JLINK_GET_HW_VERSION   0xF0

Referenced by jlinkGetHwVersion().

#define JLINK_SET_SPEED   0x05

Referenced by jlinkSetTckFrequency().

#define JLINK_GET_STATE   0x07

Referenced by jlinkGetStatus().

#define JLINK_TMS_TDI_TDO_V1   0xCD

Referenced by jlinkTapDataIO().

#define JLINK_TMS_TDI_TDO_V2   0xCE

Referenced by jlinkTapDataIO().

#define JLINK_TMS_TDI_TDO_V3   0xCF

Referenced by jlinkTapDataIO().

#define JLINK_SRST_LOW   0xDC

Referenced by jlinkReset().

#define JLINK_SRST_HIGH   0xDD

Referenced by jlinkReset().

#define JLINK_TRST_LOW   0xDE

Referenced by jlinkReset().

#define JLINK_TRST_HIGH   0xDF

Referenced by jlinkReset().

#define MAX_XMIT_BIT_LEN   (XMIT_DATA_BUFFER_SIZE/8)

Referenced by jlinkTapDataIO(), tap_data_usb_jlink(), tap_idle_usb_jlink(), and tap_instr_usb_jlink().

Function Documentation

void tap_init_usb_jlink ( void   ) 

References DBG_LEVEL_JTAG_TAP, dbgPrintf(), error_exit_code, ERROR_MSG_EXIT, jlinkGetCapability(), jlinkGetHwVersion(), jlinkGetStatus(), jlinkGetVersion(), jlinkReset(), jlinkSetTckFrequency(), READ_ENDPOINT, usb_io_buffer::read_endpoint, srst_state, trst_state, usb_io_buffer::usb_read_timeout, usb_io_buffer::usb_write_timeout, usbIO_buf, WRITE_ENDPOINT, and usb_io_buffer::write_endpoint.

void tap_hard_reset_usb_jlink ( void   ) 

References jlinkReset().

Referenced by tap_discover_chain_usb_jlink().

void tap_reset_usb_jlink ( void   ) 

References jlinkTapDataIO().

Referenced by tap_discover_chain_usb_jlink().

void tap_idle_usb_jlink ( int  now  ) 

References error_exit_code, ownParam::IDLE_CHAIN_TRANSFER, jlinkTapDataIO(), MAX_XMIT_BIT_LEN, ownParam::num_bits, ownParam::offset, transaction::parameter, ownParam::skipBits, tap_usb_io_jlink_cb(), transactionActivateFinal(), transactionCreate(), transactionErase(), transactionExecute(), transactionGet(), transactionPenting(), ownParam::type, and transaction::uplevel.

Referenced by tap_discover_chain_usb_jlink().

void tap_instr_usb_jlink ( int  num_bits,
char *  to_dev,
char *  from_dev 
)

References error_exit_code, ownParam::INSTUCTION_CHAIN_TRANSFER, jlinkTapDataIO(), MAX_XMIT_BIT_LEN, ownParam::num_bits, ownParam::offset, transaction::parameter, ownParam::skipBits, tap_usb_io_jlink_cb(), transactionActivateFinal(), transactionCreate(), transactionExecute(), transactionGet(), transactionPenting(), ownParam::type, and transaction::uplevel.

void tap_data_usb_jlink ( int  num_bits,
char *  to_dev,
char *  from_dev 
)

References ownParam::DATA_CHAIN_TRANSFER, error_exit_code, jlinkTapDataIO(), MAX_XMIT_BIT_LEN, ownParam::num_bits, ownParam::offset, transaction::parameter, ownParam::skipBits, tap_usb_io_jlink_cb(), transactionActivateFinal(), transactionCreate(), transactionExecute(), transactionGet(), transactionPenting(), ownParam::type, and transaction::uplevel.

void tap_discover_chain_usb_jlink ( void   ) 

References DBG_LEVEL_JTAG_TAP, dbgPrintf(), error_exit_code, chain_info::has_idcode, chain_info::idcode, chain_info::instr_len, instrLenByID::instrLen, jlinkTapDataIO(), jtag_supp_bitstr2int_MSB_First(), instrLenByID::jtagID, chain_info::next, chain_info::prev, tap_hard_reset_usb_jlink(), tap_idle_usb_jlink(), and tap_reset_usb_jlink().

static void jlinkTapDataIO ( int  totalBitLen,
char *  tms,
char *  tdTo,
char *  tdFrom 
) [static]

References ERROR_MSG_EXIT, JLINK_TMS_TDI_TDO_V1, JLINK_TMS_TDI_TDO_V2, JLINK_TMS_TDI_TDO_V3, libusbReadData(), libusbWriteData(), MAX_XMIT_BIT_LEN, usb_io_buffer::readbuffer, usb_io_buffer::readbuffer_remaining, usbIO_buf, usbIO_readBufferGetNext(), usbIO_writeBufferAppend(), jlink::variant, usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_data_usb_jlink(), tap_discover_chain_usb_jlink(), tap_idle_usb_jlink(), tap_instr_usb_jlink(), tap_reset_usb_jlink(), tap_test_1_usb_jlink(), tap_test_2_usb_jlink(), tap_test_3_usb_jlink(), and tap_usb_io_jlink_cb().

static void jlinkGetVersion ( void   )  [static]

References BUFFER_SIZE, DBG_LEVEL_JTAG_TAP, dbgPrintf(), ERROR_MSG_EXIT, JLINK_GET_VERSION, libusbReadData(), libusbWriteData(), usb_io_buffer::readbuffer, usb_io_buffer::readbuffer_remaining, usbIO_buf, usbIO_readBufferGetNext(), usbIO_writeBufferAppend(), usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_init_usb_jlink().

static void jlinkGetCapability ( void   )  [static]

References ERROR_MSG_EXIT, JLINK_GET_CAPABILITY, libusbReadData(), libusbWriteData(), usb_io_buffer::readbuffer_remaining, jlink::supportsGetHwVersion, jlink::supportsRtckAdaptiveClocking, usbIO_buf, usbIO_readBufferGetNext(), usbIO_writeBufferAppend(), usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_init_usb_jlink().

static void jlinkGetHwVersion ( void   )  [static]

References ERROR_MSG_EXIT, jlink::hwVerMajor, jlink::hwVerMinor, jlink::hwVerPatch, JLINK_GET_HW_VERSION, libusbReadData(), libusbWriteData(), jlink::maxFrequency, usb_io_buffer::readbuffer_remaining, jlink::supportsGetHwVersion, usbIO_buf, usbIO_readBufferGetNext(), usbIO_writeBufferAppend(), jlink::variant, usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_init_usb_jlink().

static void jlinkSetTckFrequency ( void   )  [static]

References JLINK_SET_SPEED, libusbWriteData(), jlink::maxFrequency, jlink::supportsRtckAdaptiveClocking, usbIO_buf, usbIO_writeBufferAppend(), usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_init_usb_jlink().

static void jlinkGetStatus ( void   )  [static]

References DBG_LEVEL_GDB_ARM_INFO, DBG_LEVEL_JTAG_TAP, dbgPrintf(), ERROR_MSG_EXIT, JLINK_GET_STATE, libusbReadData(), libusbWriteData(), usb_io_buffer::readbuffer_remaining, usbIO_buf, usbIO_readBufferGetNext(), usbIO_writeBufferAppend(), usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_init_usb_jlink().

static void jlinkReset ( int  trst,
int  srst 
) [static]

References JLINK_SRST_HIGH, JLINK_SRST_LOW, JLINK_TRST_HIGH, JLINK_TRST_LOW, libusbWriteData(), srst_state, trst_state, usbIO_buf, usbIO_writeBufferAppend(), usb_io_buffer::writebuffer_size, and usb_io_buffer::xferBits.

Referenced by tap_hard_reset_usb_jlink(), and tap_init_usb_jlink().

static void tap_usb_io_jlink_cb ( struct transaction *  context  )  [static]

References DBG_LEVEL_GDB_ARM_INFO, dbgPrintf(), jlinkTapDataIO(), ownParam::num_bits, ownParam::offset, transaction::parameter, ownParam::skipBits, transactionErase(), ownParam::type, and transaction::uplevel.

Referenced by tap_data_usb_jlink(), tap_idle_usb_jlink(), and tap_instr_usb_jlink().

void tap_test_1_usb_jlink ( void   ) 

References jlinkTapDataIO().

Referenced by tap_raw_io_test().

void tap_test_2_usb_jlink ( void   ) 

References jlinkTapDataIO().

Referenced by tap_raw_io_test().

void tap_test_3_usb_jlink ( void   ) 

References jlinkTapDataIO().

Referenced by tap_raw_io_test().

Variable Documentation

struct jlink jlink [static]
struct pkt_xmit pkt_xmit [static]
uint8_t srst_state [static]

Referenced by jlinkReset(), and tap_init_usb_jlink().

uint8_t trst_state [static]

Referenced by jlinkReset(), and tap_init_usb_jlink().

This file is part of the documentation for JTAG-GDB Server for ARM .
Generated on Mon Feb 15 21:23:21 2010 by doxygen 1.6.2.