File content as of revision 0:1be76329b246:
/*****************************************************************************
* file: micro.c
* abstract: This file contains the function, xsvfExecute(),
* call for interpreting the XSVF commands.
* Usage: Call xsvfExecute() to process XSVF data.
* The XSVF data is retrieved by readByte() in ports.c
* Remove the main function if you already have one.
* Options: XSVF_SUPPORT_COMPRESSION
* This define supports the XC9500/XL compression scheme.
* This define adds support for XSDRINC and XSETSDRMASKS.
* XSVF_SUPPORT_ERRORCODES
* This define causes the xsvfExecute function to return
* an error code for specific errors. See error codes below.
* If this is not defined, the return value defaults to the
* legacy values for backward compatibility:
* 1 = success; 0 = failure.
* Debugging: DEBUG_MODE (Legacy name)
* Define DEBUG_MODE to compile with debugging features.
* Both micro.c and ports.c must be compiled with the DEBUG_MODE
* defined to enable the standalone main implementation in
* micro.c that reads XSVF from a file.
* History: v2.00 - Original XSVF implementation.
* v4.04 - Added delay at end of XSIR for XC18v00 support.
* Added new commands for CoolRunner support:
* XSTATE, XENDIR, XENDDR
* v4.05 - Cleanup micro.c but leave ports.c intact.
* v4.06 - Fix xsvfGotoTapState for retry transition.
* v4.07 - Update example waitTime implementations for
* compatibility with Virtex-II.
* v4.10 - Add new XSIR2 command that supports a 2-byte
* IR-length parameter for IR shifts > 255 bits.
* v4.11 - No change. Update version to match SVF2XSVF xlator.
* v4.14 - Added XCOMMENT.
* v5.00 - Improve XSTATE support.
* Added XWAIT.
* v5.01 - make sure that TCK is low during RUNTEST wait for
* XC18V00/XCF00 support. Only change is in PORTS.C
* waitTime() function for implementations that do NOT
* pulse TCK during the waitTime.
*****************************************************************************/
/*============================================================================
* #pragmas
============================================================================*/
#ifdef _MSC_VER
#pragma warning( disable : 4100 )
#endif /* _MSC_VER */
/*============================================================================
* #include files
============================================================================*/
#define DEBUG_MODE
//#define DEBUG_MODE
/*#ifdef DEBUG_MODE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#endif*/ /* DEBUG_MODE */
#include "micro.h"
#include "lenval.h"
#include "ports.h"
#include "mbed.h"
extern Serial pc;
/*============================================================================
* XSVF #define
============================================================================*/
#define XSVF_VERSION "5.01"
/*****************************************************************************
* Define: XSVF_SUPPORT_COMPRESSION
* Description: Define this to support the XC9500/XL XSVF data compression
* scheme.
* Code size can be reduced by NOT supporting this feature.
* However, you must use the -nc (no compress) option when
* translating SVF to XSVF using the SVF2XSVF translator.
* Corresponding, uncompressed XSVF may be larger.
*****************************************************************************/
#ifndef XSVF_SUPPORT_COMPRESSION
#define XSVF_SUPPORT_COMPRESSION 1
#endif
/*****************************************************************************
* Define: XSVF_SUPPORT_ERRORCODES
* Description: Define this to support the new XSVF error codes.
* (The original XSVF player just returned 1 for success and
* 0 for an unspecified failure.)
*****************************************************************************/
#ifndef XSVF_SUPPORT_ERRORCODES
#define XSVF_SUPPORT_ERRORCODES 1
#endif
#ifdef XSVF_SUPPORT_ERRORCODES
#define XSVF_ERRORCODE(errorCode) errorCode
#else /* Use legacy error code */
#define XSVF_ERRORCODE(errorCode) ((errorCode==XSVF_ERROR_NONE)?1:0)
#endif /* XSVF_SUPPORT_ERRORCODES */
/*****************************************************************************
* Define: XSVF_MAIN
* Description: Define this to compile with a main function for standalone
* debugging.
*****************************************************************************/
#ifndef XSVF_MAIN
#ifdef DEBUG_MODE
// #define XSVF_MAIN 1
#endif /* DEBUG_MODE */
#endif /* XSVF_MAIN */
/*============================================================================
* DEBUG_MODE #define
============================================================================*/
#ifdef DEBUG_MODE
#define XSVFDBG_PRINTF(iDebugLevel,pzFormat) pc.printf( pzFormat )
#define XSVFDBG_PRINTF1(iDebugLevel,pzFormat,arg1) pc.printf( pzFormat, arg1 )
#define XSVFDBG_PRINTF2(iDebugLevel,pzFormat,arg1,arg2) pc.printf( pzFormat, arg1, arg2 )
#define XSVFDBG_PRINTF3(iDebugLevel,pzFormat,arg1,arg2,arg3) pc.printf( pzFormat, arg1, arg2, arg3 )
#define XSVFDBG_PRINTLENVAL(iDebugLevel,plenVal)
#else /* !DEBUG_MODE */
#define XSVFDBG_PRINTF(iDebugLevel,pzFormat)
#define XSVFDBG_PRINTF1(iDebugLevel,pzFormat,arg1)
#define XSVFDBG_PRINTF2(iDebugLevel,pzFormat,arg1,arg2)
#define XSVFDBG_PRINTF3(iDebugLevel,pzFormat,arg1,arg2,arg3)
#define XSVFDBG_PRINTLENVAL(iDebugLevel,plenVal)
#endif /* DEBUG_MODE */
/*============================================================================
* XSVF Type Declarations
============================================================================*/
/*****************************************************************************
* Struct: SXsvfInfo
* Description: This structure contains all of the data used during the
* execution of the XSVF. Some data is persistent, predefined
* information (e.g. lRunTestTime). The bulk of this struct's
* size is due to the lenVal structs (defined in lenval.h)
* which contain buffers for the active shift data. The MAX_LEN
* #define in lenval.h defines the size of these buffers.
* These buffers must be large enough to store the longest
* shift data in your XSVF file. For example:
* MAX_LEN >= ( longest_shift_data_in_bits / 8 )
* Because the lenVal struct dominates the space usage of this
* struct, the rough size of this struct is:
* sizeof( SXsvfInfo ) ~= MAX_LEN * 7 (number of lenVals)
* xsvfInitialize() contains initialization code for the data
* in this struct.
* xsvfCleanup() contains cleanup code for the data in this
* struct.
*****************************************************************************/
typedef struct tagSXsvfInfo
{
/* XSVF status information */
unsigned char ucComplete; /* 0 = running; 1 = complete */
unsigned char ucCommand; /* Current XSVF command byte */
long lCommandCount; /* Number of commands processed */
int iErrorCode; /* An error code. 0 = no error. */
/* TAP state/sequencing information */
unsigned char ucTapState; /* Current TAP state */
unsigned char ucEndIR; /* ENDIR TAP state (See SVF) */
unsigned char ucEndDR; /* ENDDR TAP state (See SVF) */
/* RUNTEST information */
unsigned char ucMaxRepeat; /* Max repeat loops (for xc9500/xl) */
long lRunTestTime; /* Pre-specified RUNTEST time (usec) */
/* Shift Data Info and Buffers */
long lShiftLengthBits; /* Len. current shift data in bits */
short sShiftLengthBytes; /* Len. current shift data in bytes */
lenVal lvTdi; /* Current TDI shift data */
lenVal lvTdoExpected; /* Expected TDO shift data */
lenVal lvTdoCaptured; /* Captured TDO shift data */
lenVal lvTdoMask; /* TDO mask: 0=dontcare; 1=compare */
#ifdef XSVF_SUPPORT_COMPRESSION
/* XSDRINC Data Buffers */
lenVal lvAddressMask; /* Address mask for XSDRINC */
lenVal lvDataMask; /* Data mask for XSDRINC */
lenVal lvNextData; /* Next data for XSDRINC */
#endif /* XSVF_SUPPORT_COMPRESSION */
} SXsvfInfo;
/* Declare pointer to functions that perform XSVF commands */
typedef int (*TXsvfDoCmdFuncPtr)( SXsvfInfo* );
/*============================================================================
* XSVF Command Bytes
============================================================================*/
/* encodings of xsvf instructions */
#define XCOMPLETE 0
#define XTDOMASK 1
#define XSIR 2
#define XSDR 3
#define XRUNTEST 4
/* Reserved 5 */
/* Reserved 6 */
#define XREPEAT 7
#define XSDRSIZE 8
#define XSDRTDO 9
#define XSETSDRMASKS 10
#define XSDRINC 11
#define XSDRB 12
#define XSDRC 13
#define XSDRE 14
#define XSDRTDOB 15
#define XSDRTDOC 16
#define XSDRTDOE 17
#define XSTATE 18 /* 4.00 */
#define XENDIR 19 /* 4.04 */
#define XENDDR 20 /* 4.04 */
#define XSIR2 21 /* 4.10 */
#define XCOMMENT 22 /* 4.14 */
#define XWAIT 23 /* 5.00 */
/* Insert new commands here */
/* and add corresponding xsvfDoCmd function to xsvf_pfDoCmd below. */
#define XLASTCMD 24 /* Last command marker */
/*============================================================================
* XSVF Command Parameter Values
============================================================================*/
#define XSTATE_RESET 0 /* 4.00 parameter for XSTATE */
#define XSTATE_RUNTEST 1 /* 4.00 parameter for XSTATE */
#define XENDXR_RUNTEST 0 /* 4.04 parameter for XENDIR/DR */
#define XENDXR_PAUSE 1 /* 4.04 parameter for XENDIR/DR */
/* TAP states */
#define XTAPSTATE_RESET 0x00
#define XTAPSTATE_RUNTEST 0x01 /* a.k.a. IDLE */
#define XTAPSTATE_SELECTDR 0x02
#define XTAPSTATE_CAPTUREDR 0x03
#define XTAPSTATE_SHIFTDR 0x04
#define XTAPSTATE_EXIT1DR 0x05
#define XTAPSTATE_PAUSEDR 0x06
#define XTAPSTATE_EXIT2DR 0x07
#define XTAPSTATE_UPDATEDR 0x08
#define XTAPSTATE_IRSTATES 0x09 /* All IR states begin here */
#define XTAPSTATE_SELECTIR 0x09
#define XTAPSTATE_CAPTUREIR 0x0A
#define XTAPSTATE_SHIFTIR 0x0B
#define XTAPSTATE_EXIT1IR 0x0C
#define XTAPSTATE_PAUSEIR 0x0D
#define XTAPSTATE_EXIT2IR 0x0E
#define XTAPSTATE_UPDATEIR 0x0F
/*============================================================================
* XSVF Function Prototypes
============================================================================*/
int xsvfDoIllegalCmd( SXsvfInfo* pXsvfInfo ); /* Illegal command function */
int xsvfDoXCOMPLETE( SXsvfInfo* pXsvfInfo );
int xsvfDoXTDOMASK( SXsvfInfo* pXsvfInfo );
int xsvfDoXSIR( SXsvfInfo* pXsvfInfo );
int xsvfDoXSIR2( SXsvfInfo* pXsvfInfo );
int xsvfDoXSDR( SXsvfInfo* pXsvfInfo );
int xsvfDoXRUNTEST( SXsvfInfo* pXsvfInfo );
int xsvfDoXREPEAT( SXsvfInfo* pXsvfInfo );
int xsvfDoXSDRSIZE( SXsvfInfo* pXsvfInfo );
int xsvfDoXSDRTDO( SXsvfInfo* pXsvfInfo );
int xsvfDoXSETSDRMASKS( SXsvfInfo* pXsvfInfo );
int xsvfDoXSDRINC( SXsvfInfo* pXsvfInfo );
int xsvfDoXSDRBCE( SXsvfInfo* pXsvfInfo );
int xsvfDoXSDRTDOBCE( SXsvfInfo* pXsvfInfo );
int xsvfDoXSTATE( SXsvfInfo* pXsvfInfo );
int xsvfDoXENDXR( SXsvfInfo* pXsvfInfo );
int xsvfDoXCOMMENT( SXsvfInfo* pXsvfInfo );
int xsvfDoXWAIT( SXsvfInfo* pXsvfInfo );
/* Insert new command functions here */
/*============================================================================
* XSVF Global Variables
============================================================================*/
/* Array of XSVF command functions. Must follow command byte value order! */
/* If your compiler cannot take this form, then convert to a switch statement*/
TXsvfDoCmdFuncPtr xsvf_pfDoCmd[] =
{
xsvfDoXCOMPLETE, /* 0 */
xsvfDoXTDOMASK, /* 1 */
xsvfDoXSIR, /* 2 */
xsvfDoXSDR, /* 3 */
xsvfDoXRUNTEST, /* 4 */
xsvfDoIllegalCmd, /* 5 */
xsvfDoIllegalCmd, /* 6 */
xsvfDoXREPEAT, /* 7 */
xsvfDoXSDRSIZE, /* 8 */
xsvfDoXSDRTDO, /* 9 */
#ifdef XSVF_SUPPORT_COMPRESSION
xsvfDoXSETSDRMASKS, /* 10 */
xsvfDoXSDRINC, /* 11 */
#else
xsvfDoIllegalCmd, /* 10 */
xsvfDoIllegalCmd, /* 11 */
#endif /* XSVF_SUPPORT_COMPRESSION */
xsvfDoXSDRBCE, /* 12 */
xsvfDoXSDRBCE, /* 13 */
xsvfDoXSDRBCE, /* 14 */
xsvfDoXSDRTDOBCE, /* 15 */
xsvfDoXSDRTDOBCE, /* 16 */
xsvfDoXSDRTDOBCE, /* 17 */
xsvfDoXSTATE, /* 18 */
xsvfDoXENDXR, /* 19 */
xsvfDoXENDXR, /* 20 */
xsvfDoXSIR2, /* 21 */
xsvfDoXCOMMENT, /* 22 */
xsvfDoXWAIT /* 23 */
/* Insert new command functions here */
};
#ifdef DEBUG_MODE
char* xsvf_pzCommandName[] =
{
"XCOMPLETE",
"XTDOMASK",
"XSIR",
"XSDR",
"XRUNTEST",
"Reserved5",
"Reserved6",
"XREPEAT",
"XSDRSIZE",
"XSDRTDO",
"XSETSDRMASKS",
"XSDRINC",
"XSDRB",
"XSDRC",
"XSDRE",
"XSDRTDOB",
"XSDRTDOC",
"XSDRTDOE",
"XSTATE",
"XENDIR",
"XENDDR",
"XSIR2",
"XCOMMENT",
"XWAIT"
};
char* xsvf_pzErrorName[] =
{
"No error",
"ERROR: Unknown",
"ERROR: TDO mismatch",
"ERROR: TDO mismatch and exceeded max retries",
"ERROR: Unsupported XSVF command",
"ERROR: Illegal state specification",
"ERROR: Data overflows allocated MAX_LEN buffer size"
};
char* xsvf_pzTapState[] =
{
"RESET", /* 0x00 */
"RUNTEST/IDLE", /* 0x01 */
"DRSELECT", /* 0x02 */
"DRCAPTURE", /* 0x03 */
"DRSHIFT", /* 0x04 */
"DREXIT1", /* 0x05 */
"DRPAUSE", /* 0x06 */
"DREXIT2", /* 0x07 */
"DRUPDATE", /* 0x08 */
"IRSELECT", /* 0x09 */
"IRCAPTURE", /* 0x0A */
"IRSHIFT", /* 0x0B */
"IREXIT1", /* 0x0C */
"IRPAUSE", /* 0x0D */
"IREXIT2", /* 0x0E */
"IRUPDATE" /* 0x0F */
};
#endif /* DEBUG_MODE */
#ifdef DEBUG_MODE
//FILE* in; /* Legacy DEBUG_MODE file pointer */
int xsvf_iDebugLevel;
#endif /* DEBUG_MODE */
/*============================================================================
* Utility Functions
============================================================================*/
/*****************************************************************************
* Function: xsvfPrintLenVal
* Description: Print the lenval value in hex.
* Parameters: plv - ptr to lenval.
* Returns: void.
*****************************************************************************/
#ifdef DEBUG_MODE
void xsvfPrintLenVal( lenVal *plv )
{
int i;
if ( plv )
{
printf( "0x" );
for ( i = 0; i < plv->len; ++i )
{
printf( "%02x", ((unsigned int)(plv->val[ i ])) );
}
}
}
#endif /* DEBUG_MODE */
/*****************************************************************************
* Function: xsvfInfoInit
* Description: Initialize the xsvfInfo data.
* Parameters: pXsvfInfo - ptr to the XSVF info structure.
* Returns: int - 0 = success; otherwise error.
*****************************************************************************/
int xsvfInfoInit( SXsvfInfo* pXsvfInfo )
{
//XSVFDBG_PRINTF1( 4, " sizeof( SXsvfInfo ) = %d bytes\n",
// sizeof( SXsvfInfo ) );
pXsvfInfo->ucComplete = 0;
pXsvfInfo->ucCommand = XCOMPLETE;
pXsvfInfo->lCommandCount = 0;
pXsvfInfo->iErrorCode = XSVF_ERROR_NONE;
pXsvfInfo->ucMaxRepeat = 0;
pXsvfInfo->ucTapState = XTAPSTATE_RESET;
pXsvfInfo->ucEndIR = XTAPSTATE_RUNTEST;
pXsvfInfo->ucEndDR = XTAPSTATE_RUNTEST;
pXsvfInfo->lShiftLengthBits = 0L;
pXsvfInfo->sShiftLengthBytes= 0;
pXsvfInfo->lRunTestTime = 0L;
return( 0 );
}
/*****************************************************************************
* Function: xsvfInfoCleanup
* Description: Cleanup the xsvfInfo data.
* Parameters: pXsvfInfo - ptr to the XSVF info structure.
* Returns: void.
*****************************************************************************/
void xsvfInfoCleanup( SXsvfInfo* pXsvfInfo )
{
}
/*****************************************************************************
* Function: xsvfGetAsNumBytes
* Description: Calculate the number of bytes the given number of bits
* consumes.
* Parameters: lNumBits - the number of bits.
* Returns: short - the number of bytes to store the number of bits.
*****************************************************************************/
short xsvfGetAsNumBytes( long lNumBits )
{
return( (short)( ( lNumBits + 7L ) / 8L ) );
}
/*****************************************************************************
* Function: xsvfTmsTransition
* Description: Apply TMS and transition TAP controller by applying one TCK
* cycle.
* Parameters: sTms - new TMS value.
* Returns: void.
*****************************************************************************/
void xsvfTmsTransition( short sTms )
{
setPort( TMS, sTms );
setPort( TCK, 0 );
setPort( TCK, 1 );
}
/*****************************************************************************
* Function: xsvfGotoTapState
* Description: From the current TAP state, go to the named TAP state.
* A target state of RESET ALWAYS causes TMS reset sequence.
* All SVF standard stable state paths are supported.
* All state transitions are supported except for the following
* which cause an XSVF_ERROR_ILLEGALSTATE:
* - Target==DREXIT2; Start!=DRPAUSE
* - Target==IREXIT2; Start!=IRPAUSE
* Parameters: pucTapState - Current TAP state; returns final TAP state.
* ucTargetState - New target TAP state.
* Returns: int - 0 = success; otherwise error.
*****************************************************************************/
int xsvfGotoTapState( unsigned char* pucTapState,
unsigned char ucTargetState )
{
int i;
int iErrorCode;
iErrorCode = XSVF_ERROR_NONE;
if ( ucTargetState == XTAPSTATE_RESET )
{
/* If RESET, always perform TMS reset sequence to reset/sync TAPs */
xsvfTmsTransition( 1 );
for ( i = 0; i < 5; ++i )
{
setPort( TCK, 0 );
setPort( TCK, 1 );
}
*pucTapState = XTAPSTATE_RESET;
XSVFDBG_PRINTF( 3, " TMS Reset Sequence -> Test-Logic-Reset\n" );
XSVFDBG_PRINTF1( 3, " TAP State = %s\n",
xsvf_pzTapState[ *pucTapState ] );
}
else if ( ( ucTargetState != *pucTapState ) &&
( ( ( ucTargetState == XTAPSTATE_EXIT2DR ) && ( *pucTapState != XTAPSTATE_PAUSEDR ) ) ||
( ( ucTargetState == XTAPSTATE_EXIT2IR ) && ( *pucTapState != XTAPSTATE_PAUSEIR ) ) ) )
{
/* Trap illegal TAP state path specification */
iErrorCode = XSVF_ERROR_ILLEGALSTATE;
}
else
{
if ( ucTargetState == *pucTapState )
{
/* Already in target state. Do nothing except when in DRPAUSE
or in IRPAUSE to comply with SVF standard */
if ( ucTargetState == XTAPSTATE_PAUSEDR )
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT2DR;
XSVFDBG_PRINTF1( 3, " TAP State = %s\n",
xsvf_pzTapState[ *pucTapState ] );
}
else if ( ucTargetState == XTAPSTATE_PAUSEIR )
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT2IR;
XSVFDBG_PRINTF1( 3, " TAP State = %s\n",
xsvf_pzTapState[ *pucTapState ] );
}
}
/* Perform TAP state transitions to get to the target state */
while ( ucTargetState != *pucTapState )
{
switch ( *pucTapState )
{
case XTAPSTATE_RESET:
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_RUNTEST;
break;
case XTAPSTATE_RUNTEST:
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_SELECTDR;
break;
case XTAPSTATE_SELECTDR:
if ( ucTargetState >= XTAPSTATE_IRSTATES )
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_SELECTIR;
}
else
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_CAPTUREDR;
}
break;
case XTAPSTATE_CAPTUREDR:
if ( ucTargetState == XTAPSTATE_SHIFTDR )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_SHIFTDR;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT1DR;
}
break;
case XTAPSTATE_SHIFTDR:
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT1DR;
break;
case XTAPSTATE_EXIT1DR:
if ( ucTargetState == XTAPSTATE_PAUSEDR )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_PAUSEDR;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_UPDATEDR;
}
break;
case XTAPSTATE_PAUSEDR:
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT2DR;
break;
case XTAPSTATE_EXIT2DR:
if ( ucTargetState == XTAPSTATE_SHIFTDR )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_SHIFTDR;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_UPDATEDR;
}
break;
case XTAPSTATE_UPDATEDR:
if ( ucTargetState == XTAPSTATE_RUNTEST )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_RUNTEST;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_SELECTDR;
}
break;
case XTAPSTATE_SELECTIR:
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_CAPTUREIR;
break;
case XTAPSTATE_CAPTUREIR:
if ( ucTargetState == XTAPSTATE_SHIFTIR )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_SHIFTIR;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT1IR;
}
break;
case XTAPSTATE_SHIFTIR:
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT1IR;
break;
case XTAPSTATE_EXIT1IR:
if ( ucTargetState == XTAPSTATE_PAUSEIR )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_PAUSEIR;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_UPDATEIR;
}
break;
case XTAPSTATE_PAUSEIR:
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_EXIT2IR;
break;
case XTAPSTATE_EXIT2IR:
if ( ucTargetState == XTAPSTATE_SHIFTIR )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_SHIFTIR;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_UPDATEIR;
}
break;
case XTAPSTATE_UPDATEIR:
if ( ucTargetState == XTAPSTATE_RUNTEST )
{
xsvfTmsTransition( 0 );
*pucTapState = XTAPSTATE_RUNTEST;
}
else
{
xsvfTmsTransition( 1 );
*pucTapState = XTAPSTATE_SELECTDR;
}
break;
default:
iErrorCode = XSVF_ERROR_ILLEGALSTATE;
*pucTapState = ucTargetState; /* Exit while loop */
break;
}
XSVFDBG_PRINTF1( 3, " TAP State = %s\n",
xsvf_pzTapState[ *pucTapState ] );
}
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfShiftOnly
* Description: Assumes that starting TAP state is SHIFT-DR or SHIFT-IR.
* Shift the given TDI data into the JTAG scan chain.
* Optionally, save the TDO data shifted out of the scan chain.
* Last shift cycle is special: capture last TDO, set last TDI,
* but does not pulse TCK. Caller must pulse TCK and optionally
* set TMS=1 to exit shift state.
* Parameters: lNumBits - number of bits to shift.
* plvTdi - ptr to lenval for TDI data.
* plvTdoCaptured - ptr to lenval for storing captured TDO data.
* iExitShift - 1=exit at end of shift; 0=stay in Shift-DR.
* Returns: void.
*****************************************************************************/
void xsvfShiftOnly( long lNumBits,
lenVal* plvTdi,
lenVal* plvTdoCaptured,
int iExitShift )
{
unsigned char* pucTdi;
unsigned char* pucTdo;
unsigned char ucTdiByte;
unsigned char ucTdoByte;
unsigned char ucTdoBit;
int i;
/* assert( ( ( lNumBits + 7 ) / 8 ) == plvTdi->len ); */
/* Initialize TDO storage len == TDI len */
pucTdo = 0;
if ( plvTdoCaptured )
{
plvTdoCaptured->len = plvTdi->len;
pucTdo = plvTdoCaptured->val + plvTdi->len;
}
/* Shift LSB first. val[N-1] == LSB. val[0] == MSB. */
pucTdi = plvTdi->val + plvTdi->len;
while ( lNumBits )
{
/* Process on a byte-basis */
ucTdiByte = (*(--pucTdi));
ucTdoByte = 0;
for ( i = 0; ( lNumBits && ( i < 8 ) ); ++i )
{
--lNumBits;
if ( iExitShift && !lNumBits )
{
/* Exit Shift-DR state */
setPort( TMS, 1 );
}
/* Set the new TDI value */
setPort( TDI, (short)(ucTdiByte & 1) );
ucTdiByte >>= 1;
/* Set TCK low */
setPort( TCK, 0 );
if ( pucTdo )
{
/* Save the TDO value */
ucTdoBit = readTDOBit();
ucTdoByte |= ( ucTdoBit << i );
}
/* Set TCK high */
setPort( TCK, 1 );
}
/* Save the TDO byte value */
if ( pucTdo )
{
(*(--pucTdo)) = ucTdoByte;
}
}
}
/*****************************************************************************
* Function: xsvfShift
* Description: Goes to the given starting TAP state.
* Calls xsvfShiftOnly to shift in the given TDI data and
* optionally capture the TDO data.
* Compares the TDO captured data against the TDO expected
* data.
* If a data mismatch occurs, then executes the exception
* handling loop upto ucMaxRepeat times.
* Parameters: pucTapState - Ptr to current TAP state.
* ucStartState - Starting shift state: Shift-DR or Shift-IR.
* lNumBits - number of bits to shift.
* plvTdi - ptr to lenval for TDI data.
* plvTdoCaptured - ptr to lenval for storing TDO data.
* plvTdoExpected - ptr to expected TDO data.
* plvTdoMask - ptr to TDO mask.
* ucEndState - state in which to end the shift.
* lRunTestTime - amount of time to wait after the shift.
* ucMaxRepeat - Maximum number of retries on TDO mismatch.
* Returns: int - 0 = success; otherwise TDO mismatch.
* Notes: XC9500XL-only Optimization:
* Skip the waitTime() if plvTdoMask->val[0:plvTdoMask->len-1]
* is NOT all zeros and sMatch==1.
*****************************************************************************/
int xsvfShift( unsigned char* pucTapState,
unsigned char ucStartState,
long lNumBits,
lenVal* plvTdi,
lenVal* plvTdoCaptured,
lenVal* plvTdoExpected,
lenVal* plvTdoMask,
unsigned char ucEndState,
long lRunTestTime,
unsigned char ucMaxRepeat )
{
int iErrorCode;
int iMismatch;
unsigned char ucRepeat;
int iExitShift;
iErrorCode = XSVF_ERROR_NONE;
iMismatch = 0;
ucRepeat = 0;
iExitShift = ( ucStartState != ucEndState );
XSVFDBG_PRINTF1( 3, " Shift Length = %ld\n", lNumBits );
XSVFDBG_PRINTF( 4, " TDI = ");
XSVFDBG_PRINTLENVAL( 4, plvTdi );
XSVFDBG_PRINTF( 4, "\n");
XSVFDBG_PRINTF( 4, " TDO Expected = ");
XSVFDBG_PRINTLENVAL( 4, plvTdoExpected );
XSVFDBG_PRINTF( 4, "\n");
if ( !lNumBits )
{
/* Compatibility with XSVF2.00: XSDR 0 = no shift, but wait in RTI */
if ( lRunTestTime )
{
/* Wait for prespecified XRUNTEST time */
xsvfGotoTapState( pucTapState, XTAPSTATE_RUNTEST );
XSVFDBG_PRINTF1( 3, " Wait = %ld usec\n", lRunTestTime );
waitTime( lRunTestTime );
}
}
else
{
do
{
/* Goto Shift-DR or Shift-IR */
xsvfGotoTapState( pucTapState, ucStartState );
/* Shift TDI and capture TDO */
xsvfShiftOnly( lNumBits, plvTdi, plvTdoCaptured, iExitShift );
if ( plvTdoExpected )
{
/* Compare TDO data to expected TDO data */
iMismatch = !EqualLenVal( plvTdoExpected,
plvTdoCaptured,
plvTdoMask );
}
if ( iExitShift )
{
/* Update TAP state: Shift->Exit */
++(*pucTapState);
XSVFDBG_PRINTF1( 3, " TAP State = %s\n",
xsvf_pzTapState[ *pucTapState ] );
if ( iMismatch && lRunTestTime && ( ucRepeat < ucMaxRepeat ) )
{
XSVFDBG_PRINTF( 4, " TDO Expected = ");
XSVFDBG_PRINTLENVAL( 4, plvTdoExpected );
XSVFDBG_PRINTF( 4, "\n");
XSVFDBG_PRINTF( 4, " TDO Captured = ");
XSVFDBG_PRINTLENVAL( 4, plvTdoCaptured );
XSVFDBG_PRINTF( 4, "\n");
XSVFDBG_PRINTF( 4, " TDO Mask = ");
XSVFDBG_PRINTLENVAL( 4, plvTdoMask );
XSVFDBG_PRINTF( 4, "\n");
XSVFDBG_PRINTF1( 3, " Retry #%d\n", ( ucRepeat + 1 ) );
/* Do exception handling retry - ShiftDR only */
xsvfGotoTapState( pucTapState, XTAPSTATE_PAUSEDR );
/* Shift 1 extra bit */
xsvfGotoTapState( pucTapState, XTAPSTATE_SHIFTDR );
/* Increment RUNTEST time by an additional 25% */
lRunTestTime += ( lRunTestTime >> 2 );
}
else
{
/* Do normal exit from Shift-XR */
xsvfGotoTapState( pucTapState, ucEndState );
}
if ( lRunTestTime )
{
/* Wait for prespecified XRUNTEST time */
xsvfGotoTapState( pucTapState, XTAPSTATE_RUNTEST );
XSVFDBG_PRINTF1( 3, " Wait = %ld usec\n", lRunTestTime );
waitTime( lRunTestTime );
}
}
} while ( iMismatch && ( ucRepeat++ < ucMaxRepeat ) );
}
if ( iMismatch )
{
XSVFDBG_PRINTF( 1, " TDO Expected = ");
XSVFDBG_PRINTLENVAL( 1, plvTdoExpected );
XSVFDBG_PRINTF( 1, "\n");
XSVFDBG_PRINTF( 1, " TDO Captured = ");
XSVFDBG_PRINTLENVAL( 1, plvTdoCaptured );
XSVFDBG_PRINTF( 1, "\n");
XSVFDBG_PRINTF( 1, " TDO Mask = ");
XSVFDBG_PRINTLENVAL( 1, plvTdoMask );
XSVFDBG_PRINTF( 1, "\n");
if ( ucMaxRepeat && ( ucRepeat > ucMaxRepeat ) )
{
iErrorCode = XSVF_ERROR_MAXRETRIES;
}
else
{
iErrorCode = XSVF_ERROR_TDOMISMATCH;
}
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfBasicXSDRTDO
* Description: Get the XSDRTDO parameters and execute the XSDRTDO command.
* This is the common function for all XSDRTDO commands.
* Parameters: pucTapState - Current TAP state.
* lShiftLengthBits - number of bits to shift.
* sShiftLengthBytes - number of bytes to read.
* plvTdi - ptr to lenval for TDI data.
* lvTdoCaptured - ptr to lenval for storing TDO data.
* iEndState - state in which to end the shift.
* lRunTestTime - amount of time to wait after the shift.
* ucMaxRepeat - maximum xc9500/xl retries.
* Returns: int - 0 = success; otherwise TDO mismatch.
*****************************************************************************/
int xsvfBasicXSDRTDO( unsigned char* pucTapState,
long lShiftLengthBits,
short sShiftLengthBytes,
lenVal* plvTdi,
lenVal* plvTdoCaptured,
lenVal* plvTdoExpected,
lenVal* plvTdoMask,
unsigned char ucEndState,
long lRunTestTime,
unsigned char ucMaxRepeat )
{
readVal( plvTdi, sShiftLengthBytes );
if ( plvTdoExpected )
{
readVal( plvTdoExpected, sShiftLengthBytes );
}
return( xsvfShift( pucTapState, XTAPSTATE_SHIFTDR, lShiftLengthBits,
plvTdi, plvTdoCaptured, plvTdoExpected, plvTdoMask,
ucEndState, lRunTestTime, ucMaxRepeat ) );
}
/*****************************************************************************
* Function: xsvfDoSDRMasking
* Description: Update the data value with the next XSDRINC data and address.
* Example: dataVal=0x01ff, nextData=0xab, addressMask=0x0100,
* dataMask=0x00ff, should set dataVal to 0x02ab
* Parameters: plvTdi - The current TDI value.
* plvNextData - the next data value.
* plvAddressMask - the address mask.
* plvDataMask - the data mask.
* Returns: void.
*****************************************************************************/
#ifdef XSVF_SUPPORT_COMPRESSION
void xsvfDoSDRMasking( lenVal* plvTdi,
lenVal* plvNextData,
lenVal* plvAddressMask,
lenVal* plvDataMask )
{
int i;
unsigned char ucTdi;
unsigned char ucTdiMask;
unsigned char ucDataMask;
unsigned char ucNextData;
unsigned char ucNextMask;
short sNextData;
/* add the address Mask to dataVal and return as a new dataVal */
addVal( plvTdi, plvTdi, plvAddressMask );
ucNextData = 0;
ucNextMask = 0;
sNextData = plvNextData->len;
for ( i = plvDataMask->len - 1; i >= 0; --i )
{
/* Go through data mask in reverse order looking for mask (1) bits */
ucDataMask = plvDataMask->val[ i ];
if ( ucDataMask )
{
/* Retrieve the corresponding TDI byte value */
ucTdi = plvTdi->val[ i ];
/* For each bit in the data mask byte, look for 1's */
ucTdiMask = 1;
while ( ucDataMask )
{
if ( ucDataMask & 1 )
{
if ( !ucNextMask )
{
/* Get the next data byte */
ucNextData = plvNextData->val[ --sNextData ];
ucNextMask = 1;
}
/* Set or clear the data bit according to the next data */
if ( ucNextData & ucNextMask )
{
ucTdi |= ucTdiMask; /* Set bit */
}
else
{
ucTdi &= ( ~ucTdiMask ); /* Clear bit */
}
/* Update the next data */
ucNextMask <<= 1;
}
ucTdiMask <<= 1;
ucDataMask >>= 1;
}
/* Update the TDI value */
plvTdi->val[ i ] = ucTdi;
}
}
}
#endif /* XSVF_SUPPORT_COMPRESSION */
/*============================================================================
* XSVF Command Functions (type = TXsvfDoCmdFuncPtr)
* These functions update pXsvfInfo->iErrorCode only on an error.
* Otherwise, the error code is left alone.
* The function returns the error code from the function.
============================================================================*/
/*****************************************************************************
* Function: xsvfDoIllegalCmd
* Description: Function place holder for illegal/unsupported commands.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoIllegalCmd( SXsvfInfo* pXsvfInfo )
{
XSVFDBG_PRINTF2( 0, "ERROR: Encountered unsupported command #%d (%s)\n",
((unsigned int)(pXsvfInfo->ucCommand)),
((pXsvfInfo->ucCommand < XLASTCMD)
? (xsvf_pzCommandName[pXsvfInfo->ucCommand])
: "Unknown") );
pXsvfInfo->iErrorCode = XSVF_ERROR_ILLEGALCMD;
return( pXsvfInfo->iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXCOMPLETE
* Description: XCOMPLETE (no parameters)
* Update complete status for XSVF player.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXCOMPLETE( SXsvfInfo* pXsvfInfo )
{
pXsvfInfo->ucComplete = 1;
return( XSVF_ERROR_NONE );
}
/*****************************************************************************
* Function: xsvfDoXTDOMASK
* Description: XTDOMASK <lenVal.TdoMask[XSDRSIZE]>
* Prespecify the TDO compare mask.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXTDOMASK( SXsvfInfo* pXsvfInfo )
{
readVal( &(pXsvfInfo->lvTdoMask), pXsvfInfo->sShiftLengthBytes );
XSVFDBG_PRINTF( 4, " TDO Mask = ");
XSVFDBG_PRINTLENVAL( 4, &(pXsvfInfo->lvTdoMask) );
XSVFDBG_PRINTF( 4, "\n");
return( XSVF_ERROR_NONE );
}
/*****************************************************************************
* Function: xsvfDoXSIR
* Description: XSIR <(byte)shiftlen> <lenVal.TDI[shiftlen]>
* Get the instruction and shift the instruction into the TAP.
* If prespecified XRUNTEST!=0, goto RUNTEST and wait after
* the shift for XRUNTEST usec.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSIR( SXsvfInfo* pXsvfInfo )
{
unsigned char ucShiftIrBits;
short sShiftIrBytes;
int iErrorCode;
/* Get the shift length and store */
readByte( &ucShiftIrBits );
sShiftIrBytes = xsvfGetAsNumBytes( ucShiftIrBits );
XSVFDBG_PRINTF1( 3, " XSIR length = %d\n",
((unsigned int)ucShiftIrBits) );
if ( sShiftIrBytes > MAX_LEN )
{
iErrorCode = XSVF_ERROR_DATAOVERFLOW;
}
else
{
/* Get and store instruction to shift in */
readVal( &(pXsvfInfo->lvTdi), xsvfGetAsNumBytes( ucShiftIrBits ) );
/* Shift the data */
iErrorCode = xsvfShift( &(pXsvfInfo->ucTapState), XTAPSTATE_SHIFTIR,
ucShiftIrBits, &(pXsvfInfo->lvTdi),
/*plvTdoCaptured*/0, /*plvTdoExpected*/0,
/*plvTdoMask*/0, pXsvfInfo->ucEndIR,
pXsvfInfo->lRunTestTime, /*ucMaxRepeat*/0 );
}
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXSIR2
* Description: XSIR <(2-byte)shiftlen> <lenVal.TDI[shiftlen]>
* Get the instruction and shift the instruction into the TAP.
* If prespecified XRUNTEST!=0, goto RUNTEST and wait after
* the shift for XRUNTEST usec.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSIR2( SXsvfInfo* pXsvfInfo )
{
long lShiftIrBits;
short sShiftIrBytes;
int iErrorCode;
/* Get the shift length and store */
readVal( &(pXsvfInfo->lvTdi), 2 );
lShiftIrBits = value( &(pXsvfInfo->lvTdi) );
sShiftIrBytes = xsvfGetAsNumBytes( lShiftIrBits );
XSVFDBG_PRINTF1( 3, " XSIR2 length = %d\n", lShiftIrBits);
if ( sShiftIrBytes > MAX_LEN )
{
iErrorCode = XSVF_ERROR_DATAOVERFLOW;
}
else
{
/* Get and store instruction to shift in */
readVal( &(pXsvfInfo->lvTdi), xsvfGetAsNumBytes( lShiftIrBits ) );
/* Shift the data */
iErrorCode = xsvfShift( &(pXsvfInfo->ucTapState), XTAPSTATE_SHIFTIR,
lShiftIrBits, &(pXsvfInfo->lvTdi),
/*plvTdoCaptured*/0, /*plvTdoExpected*/0,
/*plvTdoMask*/0, pXsvfInfo->ucEndIR,
pXsvfInfo->lRunTestTime, /*ucMaxRepeat*/0 );
}
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXSDR
* Description: XSDR <lenVal.TDI[XSDRSIZE]>
* Shift the given TDI data into the JTAG scan chain.
* Compare the captured TDO with the expected TDO from the
* previous XSDRTDO command using the previously specified
* XTDOMASK.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSDR( SXsvfInfo* pXsvfInfo )
{
int iErrorCode;
readVal( &(pXsvfInfo->lvTdi), pXsvfInfo->sShiftLengthBytes );
/* use TDOExpected from last XSDRTDO instruction */
iErrorCode = xsvfShift( &(pXsvfInfo->ucTapState), XTAPSTATE_SHIFTDR,
pXsvfInfo->lShiftLengthBits, &(pXsvfInfo->lvTdi),
&(pXsvfInfo->lvTdoCaptured),
&(pXsvfInfo->lvTdoExpected),
&(pXsvfInfo->lvTdoMask), pXsvfInfo->ucEndDR,
pXsvfInfo->lRunTestTime, pXsvfInfo->ucMaxRepeat );
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXRUNTEST
* Description: XRUNTEST <uint32>
* Prespecify the XRUNTEST wait time for shift operations.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXRUNTEST( SXsvfInfo* pXsvfInfo )
{
readVal( &(pXsvfInfo->lvTdi), 4 );
pXsvfInfo->lRunTestTime = value( &(pXsvfInfo->lvTdi) );
XSVFDBG_PRINTF1( 3, " XRUNTEST = %ld\n", pXsvfInfo->lRunTestTime );
return( XSVF_ERROR_NONE );
}
/*****************************************************************************
* Function: xsvfDoXREPEAT
* Description: XREPEAT <byte>
* Prespecify the maximum number of XC9500/XL retries.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXREPEAT( SXsvfInfo* pXsvfInfo )
{
readByte( &(pXsvfInfo->ucMaxRepeat) );
XSVFDBG_PRINTF1( 3, " XREPEAT = %d\n",
((unsigned int)(pXsvfInfo->ucMaxRepeat)) );
return( XSVF_ERROR_NONE );
}
/*****************************************************************************
* Function: xsvfDoXSDRSIZE
* Description: XSDRSIZE <uint32>
* Prespecify the XRUNTEST wait time for shift operations.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSDRSIZE( SXsvfInfo* pXsvfInfo )
{
int iErrorCode;
iErrorCode = XSVF_ERROR_NONE;
readVal( &(pXsvfInfo->lvTdi), 4 );
pXsvfInfo->lShiftLengthBits = value( &(pXsvfInfo->lvTdi) );
pXsvfInfo->sShiftLengthBytes= xsvfGetAsNumBytes( pXsvfInfo->lShiftLengthBits );
XSVFDBG_PRINTF1( 3, " XSDRSIZE = %ld\n", pXsvfInfo->lShiftLengthBits );
if ( pXsvfInfo->sShiftLengthBytes > MAX_LEN )
{
iErrorCode = XSVF_ERROR_DATAOVERFLOW;
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXSDRTDO
* Description: XSDRTDO <lenVal.TDI[XSDRSIZE]> <lenVal.TDO[XSDRSIZE]>
* Get the TDI and expected TDO values. Then, shift.
* Compare the expected TDO with the captured TDO using the
* prespecified XTDOMASK.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSDRTDO( SXsvfInfo* pXsvfInfo )
{
int iErrorCode;
iErrorCode = xsvfBasicXSDRTDO( &(pXsvfInfo->ucTapState),
pXsvfInfo->lShiftLengthBits,
pXsvfInfo->sShiftLengthBytes,
&(pXsvfInfo->lvTdi),
&(pXsvfInfo->lvTdoCaptured),
&(pXsvfInfo->lvTdoExpected),
&(pXsvfInfo->lvTdoMask),
pXsvfInfo->ucEndDR,
pXsvfInfo->lRunTestTime,
pXsvfInfo->ucMaxRepeat );
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXSETSDRMASKS
* Description: XSETSDRMASKS <lenVal.AddressMask[XSDRSIZE]>
* <lenVal.DataMask[XSDRSIZE]>
* Get the prespecified address and data mask for the XSDRINC
* command.
* Used for xc9500/xl compressed XSVF data.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
#ifdef XSVF_SUPPORT_COMPRESSION
int xsvfDoXSETSDRMASKS( SXsvfInfo* pXsvfInfo )
{
/* read the addressMask */
readVal( &(pXsvfInfo->lvAddressMask), pXsvfInfo->sShiftLengthBytes );
/* read the dataMask */
readVal( &(pXsvfInfo->lvDataMask), pXsvfInfo->sShiftLengthBytes );
XSVFDBG_PRINTF( 4, " Address Mask = " );
XSVFDBG_PRINTLENVAL( 4, &(pXsvfInfo->lvAddressMask) );
XSVFDBG_PRINTF( 4, "\n" );
XSVFDBG_PRINTF( 4, " Data Mask = " );
XSVFDBG_PRINTLENVAL( 4, &(pXsvfInfo->lvDataMask) );
XSVFDBG_PRINTF( 4, "\n" );
return( XSVF_ERROR_NONE );
}
#endif /* XSVF_SUPPORT_COMPRESSION */
/*****************************************************************************
* Function: xsvfDoXSDRINC
* Description: XSDRINC <lenVal.firstTDI[XSDRSIZE]> <byte(numTimes)>
* <lenVal.data[XSETSDRMASKS.dataMask.len]> ...
* Get the XSDRINC parameters and execute the XSDRINC command.
* XSDRINC starts by loading the first TDI shift value.
* Then, for numTimes, XSDRINC gets the next piece of data,
* replaces the bits from the starting TDI as defined by the
* XSETSDRMASKS.dataMask, adds the address mask from
* XSETSDRMASKS.addressMask, shifts the new TDI value,
* and compares the TDO to the expected TDO from the previous
* XSDRTDO command using the XTDOMASK.
* Used for xc9500/xl compressed XSVF data.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
#ifdef XSVF_SUPPORT_COMPRESSION
int xsvfDoXSDRINC( SXsvfInfo* pXsvfInfo )
{
int iErrorCode;
int iDataMaskLen;
unsigned char ucDataMask;
unsigned char ucNumTimes;
unsigned char i;
readVal( &(pXsvfInfo->lvTdi), pXsvfInfo->sShiftLengthBytes );
iErrorCode = xsvfShift( &(pXsvfInfo->ucTapState), XTAPSTATE_SHIFTDR,
pXsvfInfo->lShiftLengthBits,
&(pXsvfInfo->lvTdi), &(pXsvfInfo->lvTdoCaptured),
&(pXsvfInfo->lvTdoExpected),
&(pXsvfInfo->lvTdoMask), pXsvfInfo->ucEndDR,
pXsvfInfo->lRunTestTime, pXsvfInfo->ucMaxRepeat );
if ( !iErrorCode )
{
/* Calculate number of data mask bits */
iDataMaskLen = 0;
for ( i = 0; i < pXsvfInfo->lvDataMask.len; ++i )
{
ucDataMask = pXsvfInfo->lvDataMask.val[ i ];
while ( ucDataMask )
{
iDataMaskLen += ( ucDataMask & 1 );
ucDataMask >>= 1;
}
}
/* Get the number of data pieces, i.e. number of times to shift */
readByte( &ucNumTimes );
/* For numTimes, get data, fix TDI, and shift */
for ( i = 0; !iErrorCode && ( i < ucNumTimes ); ++i )
{
readVal( &(pXsvfInfo->lvNextData),
xsvfGetAsNumBytes( iDataMaskLen ) );
xsvfDoSDRMasking( &(pXsvfInfo->lvTdi),
&(pXsvfInfo->lvNextData),
&(pXsvfInfo->lvAddressMask),
&(pXsvfInfo->lvDataMask) );
iErrorCode = xsvfShift( &(pXsvfInfo->ucTapState),
XTAPSTATE_SHIFTDR,
pXsvfInfo->lShiftLengthBits,
&(pXsvfInfo->lvTdi),
&(pXsvfInfo->lvTdoCaptured),
&(pXsvfInfo->lvTdoExpected),
&(pXsvfInfo->lvTdoMask),
pXsvfInfo->ucEndDR,
pXsvfInfo->lRunTestTime,
pXsvfInfo->ucMaxRepeat );
}
}
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
#endif /* XSVF_SUPPORT_COMPRESSION */
/*****************************************************************************
* Function: xsvfDoXSDRBCE
* Description: XSDRB/XSDRC/XSDRE <lenVal.TDI[XSDRSIZE]>
* If not already in SHIFTDR, goto SHIFTDR.
* Shift the given TDI data into the JTAG scan chain.
* Ignore TDO.
* If cmd==XSDRE, then goto ENDDR. Otherwise, stay in ShiftDR.
* XSDRB, XSDRC, and XSDRE are the same implementation.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSDRBCE( SXsvfInfo* pXsvfInfo )
{
unsigned char ucEndDR;
int iErrorCode;
ucEndDR = (unsigned char)(( pXsvfInfo->ucCommand == XSDRE ) ?
pXsvfInfo->ucEndDR : XTAPSTATE_SHIFTDR);
iErrorCode = xsvfBasicXSDRTDO( &(pXsvfInfo->ucTapState),
pXsvfInfo->lShiftLengthBits,
pXsvfInfo->sShiftLengthBytes,
&(pXsvfInfo->lvTdi),
/*plvTdoCaptured*/0, /*plvTdoExpected*/0,
/*plvTdoMask*/0, ucEndDR,
/*lRunTestTime*/0, /*ucMaxRepeat*/0 );
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXSDRTDOBCE
* Description: XSDRB/XSDRC/XSDRE <lenVal.TDI[XSDRSIZE]> <lenVal.TDO[XSDRSIZE]>
* If not already in SHIFTDR, goto SHIFTDR.
* Shift the given TDI data into the JTAG scan chain.
* Compare TDO, but do NOT use XTDOMASK.
* If cmd==XSDRTDOE, then goto ENDDR. Otherwise, stay in ShiftDR.
* XSDRTDOB, XSDRTDOC, and XSDRTDOE are the same implementation.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSDRTDOBCE( SXsvfInfo* pXsvfInfo )
{
unsigned char ucEndDR;
int iErrorCode;
ucEndDR = (unsigned char)(( pXsvfInfo->ucCommand == XSDRTDOE ) ?
pXsvfInfo->ucEndDR : XTAPSTATE_SHIFTDR);
iErrorCode = xsvfBasicXSDRTDO( &(pXsvfInfo->ucTapState),
pXsvfInfo->lShiftLengthBits,
pXsvfInfo->sShiftLengthBytes,
&(pXsvfInfo->lvTdi),
&(pXsvfInfo->lvTdoCaptured),
&(pXsvfInfo->lvTdoExpected),
/*plvTdoMask*/0, ucEndDR,
/*lRunTestTime*/0, /*ucMaxRepeat*/0 );
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXSTATE
* Description: XSTATE <byte>
* <byte> == XTAPSTATE;
* Get the state parameter and transition the TAP to that state.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXSTATE( SXsvfInfo* pXsvfInfo )
{
unsigned char ucNextState;
int iErrorCode;
readByte( &ucNextState );
iErrorCode = xsvfGotoTapState( &(pXsvfInfo->ucTapState), ucNextState );
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXENDXR
* Description: XENDIR/XENDDR <byte>
* <byte>: 0 = RUNTEST; 1 = PAUSE.
* Get the prespecified XENDIR or XENDDR.
* Both XENDIR and XENDDR use the same implementation.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXENDXR( SXsvfInfo* pXsvfInfo )
{
int iErrorCode;
unsigned char ucEndState;
iErrorCode = XSVF_ERROR_NONE;
readByte( &ucEndState );
if ( ( ucEndState != XENDXR_RUNTEST ) && ( ucEndState != XENDXR_PAUSE ) )
{
iErrorCode = XSVF_ERROR_ILLEGALSTATE;
}
else
{
if ( pXsvfInfo->ucCommand == XENDIR )
{
if ( ucEndState == XENDXR_RUNTEST )
{
pXsvfInfo->ucEndIR = XTAPSTATE_RUNTEST;
}
else
{
pXsvfInfo->ucEndIR = XTAPSTATE_PAUSEIR;
}
XSVFDBG_PRINTF1( 3, " ENDIR State = %s\n",
xsvf_pzTapState[ pXsvfInfo->ucEndIR ] );
}
else /* XENDDR */
{
if ( ucEndState == XENDXR_RUNTEST )
{
pXsvfInfo->ucEndDR = XTAPSTATE_RUNTEST;
}
else
{
pXsvfInfo->ucEndDR = XTAPSTATE_PAUSEDR;
}
XSVFDBG_PRINTF1( 3, " ENDDR State = %s\n",
xsvf_pzTapState[ pXsvfInfo->ucEndDR ] );
}
}
if ( iErrorCode != XSVF_ERROR_NONE )
{
pXsvfInfo->iErrorCode = iErrorCode;
}
return( iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXCOMMENT
* Description: XCOMMENT <text string ending in \0>
* <text string ending in \0> == text comment;
* Arbitrary comment embedded in the XSVF.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXCOMMENT( SXsvfInfo* pXsvfInfo )
{
/* Use the comment for debugging */
/* Otherwise, read through the comment to the end '\0' and ignore */
//unsigned char ucText;
/*
if ( xsvf_iDebugLevel > 0 )
{
putchar( ' ' );
}
do
{
readByte( &ucText );
if ( xsvf_iDebugLevel > 0 )
{
putchar( ucText ? ucText : '\n' );
}
} while ( ucText );
*/
pXsvfInfo->iErrorCode = XSVF_ERROR_NONE;
return( pXsvfInfo->iErrorCode );
}
/*****************************************************************************
* Function: xsvfDoXWAIT
* Description: XWAIT <wait_state> <end_state> <wait_time>
* If not already in <wait_state>, then go to <wait_state>.
* Wait in <wait_state> for <wait_time> microseconds.
* Finally, if not already in <end_state>, then goto <end_state>.
* Parameters: pXsvfInfo - XSVF information pointer.
* Returns: int - 0 = success; non-zero = error.
*****************************************************************************/
int xsvfDoXWAIT( SXsvfInfo* pXsvfInfo )
{
unsigned char ucWaitState;
unsigned char ucEndState;
long lWaitTime;
/* Get Parameters */
/* <wait_state> */
readVal( &(pXsvfInfo->lvTdi), 1 );
ucWaitState = pXsvfInfo->lvTdi.val[0];
/* <end_state> */
readVal( &(pXsvfInfo->lvTdi), 1 );
ucEndState = pXsvfInfo->lvTdi.val[0];
/* <wait_time> */
readVal( &(pXsvfInfo->lvTdi), 4 );
lWaitTime = value( &(pXsvfInfo->lvTdi) );
XSVFDBG_PRINTF2( 3, " XWAIT: state = %s; time = %ld\n",
xsvf_pzTapState[ ucWaitState ], lWaitTime );
/* If not already in <wait_state>, go to <wait_state> */
if ( pXsvfInfo->ucTapState != ucWaitState )
{
xsvfGotoTapState( &(pXsvfInfo->ucTapState), ucWaitState );
}
/* Wait for <wait_time> microseconds */
waitTime( lWaitTime );
/* If not already in <end_state>, go to <end_state> */
if ( pXsvfInfo->ucTapState != ucEndState )
{
xsvfGotoTapState( &(pXsvfInfo->ucTapState), ucEndState );
}
return( XSVF_ERROR_NONE );
}
/*============================================================================
* Execution Control Functions
============================================================================*/
/*****************************************************************************
* Function: xsvfInitialize
* Description: Initialize the xsvf player.
* Call this before running the player to initialize the data
* in the SXsvfInfo struct.
* xsvfCleanup is called to clean up the data in SXsvfInfo
* after the XSVF is played.
* Parameters: pXsvfInfo - ptr to the XSVF information.
* Returns: int - 0 = success; otherwise error.
*****************************************************************************/
int xsvfInitialize( SXsvfInfo* pXsvfInfo )
{
/* Initialize values */
pXsvfInfo->iErrorCode = xsvfInfoInit( pXsvfInfo );
if ( !pXsvfInfo->iErrorCode )
{
/* Initialize the TAPs */
pXsvfInfo->iErrorCode = xsvfGotoTapState( &(pXsvfInfo->ucTapState),
XTAPSTATE_RESET );
}
return( pXsvfInfo->iErrorCode );
}
/*****************************************************************************
* Function: xsvfRun
* Description: Run the xsvf player for a single command and return.
* First, call xsvfInitialize.
* Then, repeatedly call this function until an error is detected
* or until the pXsvfInfo->ucComplete variable is non-zero.
* Finally, call xsvfCleanup to cleanup any remnants.
* Parameters: pXsvfInfo - ptr to the XSVF information.
* Returns: int - 0 = success; otherwise error.
*****************************************************************************/
int xsvfRun( SXsvfInfo* pXsvfInfo )
{
/* Process the XSVF commands */
if ( (!pXsvfInfo->iErrorCode) && (!pXsvfInfo->ucComplete) )
{
/* read 1 byte for the instruction */
readByte( &(pXsvfInfo->ucCommand) );
++(pXsvfInfo->lCommandCount);
if ( pXsvfInfo->ucCommand < XLASTCMD )
{
/* Execute the command. Func sets error code. */
XSVFDBG_PRINTF1( 2, " %s\n",
xsvf_pzCommandName[pXsvfInfo->ucCommand] );
/* If your compiler cannot take this form,
then convert to a switch statement */
xsvf_pfDoCmd[ pXsvfInfo->ucCommand ]( pXsvfInfo );
}
else
{
/* Illegal command value. Func sets error code. */
xsvfDoIllegalCmd( pXsvfInfo );
}
}
return( pXsvfInfo->iErrorCode );
}
/*****************************************************************************
* Function: xsvfCleanup
* Description: cleanup remnants of the xsvf player.
* Parameters: pXsvfInfo - ptr to the XSVF information.
* Returns: void.
*****************************************************************************/
void xsvfCleanup( SXsvfInfo* pXsvfInfo )
{
xsvfInfoCleanup( pXsvfInfo );
}
/*============================================================================
* xsvfExecute() - The primary entry point to the XSVF player
============================================================================*/
/*****************************************************************************
* Function: xsvfExecute
* Description: Process, interpret, and apply the XSVF commands.
* See port.c:readByte for source of XSVF data.
* Parameters: none.
* Returns: int - Legacy result values: 1 == success; 0 == failed.
*****************************************************************************/
int xsvfExecute()
{
SXsvfInfo xsvfInfo;
pc.printf("=========================\n");
xsvfInitialize( &xsvfInfo );
pc.printf("init complete\n");
while ( !xsvfInfo.iErrorCode && (!xsvfInfo.ucComplete) )
{
xsvfRun( &xsvfInfo );
pc.printf("loop>\n");
}
if ( xsvfInfo.iErrorCode )
{
XSVFDBG_PRINTF1( 0, "%s\n", xsvf_pzErrorName[
( xsvfInfo.iErrorCode < XSVF_ERROR_LAST )
? xsvfInfo.iErrorCode : XSVF_ERROR_UNKNOWN ] );
XSVFDBG_PRINTF2( 0, "ERROR at or near XSVF command #%ld. See line #%ld in the XSVF ASCII file.\n",
xsvfInfo.lCommandCount, xsvfInfo.lCommandCount );
}
else
{
XSVFDBG_PRINTF( 0, "SUCCESS - Completed XSVF execution.\n" );
}
xsvfCleanup( &xsvfInfo );
return( XSVF_ERRORCODE(xsvfInfo.iErrorCode) );
}
Paul Clarke