files.c

ADAM2 sources (modified by Oleg)

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/*  TEXAS INSTRUMENTS                                                          	*/
/*  Application Specific Products, MS 8650                                     	*/
/*  c/o ADAM2 Application Manager                                              	*/
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/*  Dallas, TX 75243  - U.S.A.                                                 	*/
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/*------------------------------------------------------------------------------*/

#include "_stdio.h"
#include "support.h"
#include "files.h"
#include "errors.h" 
#include "sio.h"
#include "shell.h"
#include "files.h"
#include "fcb.h"
#include "hw.h"
#include "flashop.h"
#include "ffs.h"
#include "ffs_util.h"

#define _StreamOut SioOutChar  

int *LEDData=(int *)0x01b81008; 

int FileVersion(void)
  {
  return(0x01);
  }
           
void Zap(int i)
  {
  i<<=4;
  i^=0xf0;
  i&=0xf0;
  *LEDData=i;
  }           
           
void _FileSystemInit(void)
  {
  fcb_InitFCB();
  ffs_InitFlashFIleSystem();
  }

void _FCBCloseWriteFiles(void)
  {
  int i;

  for(i=0;i<MAX_OPEN_FILES;i++)
    {
    ffs_AbandonWrite(&_FileArray[i]);  
    }
  }

void _FilePutString(const char *str)
  {
  while(*str)
    _StreamOut(*str++);
  _StreamOut(0);
  }

int _FileGetByte(char *cVal)
  {
  bit32 lTimeOut;

  lTimeOut=FILE_WAIT_TIME;
  while(lTimeOut)
    {
    if (SioInCharCheck(cVal))
      {      
      return(TRUE);
      }
    lTimeOut--;
    }  
  return(FALSE);
  }

void _FilePutShort(short sVal)
  {

  _StreamOut((char)sVal);
  sVal>>=8;
  _StreamOut((char)sVal);
  }

void _FilePutBit32(bit32 lVal)
  {

  _StreamOut((char)lVal);
  lVal>>=8;
  _StreamOut((char)lVal);
  lVal>>=8;
  _StreamOut((char)lVal);
  lVal>>=8;
  _StreamOut((char)lVal);
  }

int _FileHandlerResponce(char cVal)
  {
  char cTmp;
  
  do
    {
    if (!_FileGetByte(&cTmp))
      return(FALSE);
    }while(cTmp!=FILER);  
  if (!_FileGetByte(&cTmp))
    return(FALSE);
  if (cTmp!=cVal)
    return(FALSE);
  return(TRUE);  
  }

int _FileHandlerCheck(void)
  {
  _StreamOut(FILER);
  _StreamOut(FALIVE);
  return(_FileHandlerResponce(FALIVE));
  }

int _FileGetBit32(bit32 *lVal)
  {
  bit32 lTmp;
  int iIndex;
  char cTmp;

  lTmp=0;
  for(iIndex=0;iIndex<4;iIndex++)
    {
    if (!_FileGetByte(&cTmp))
      return(FALSE);
    lTmp|=(((bit32)cTmp)&0x0ffl)<<(iIndex*8);
    }
  *lVal=lTmp;
  return(TRUE);
  }

int _SioFileRemove(const char *file_name)
  {
  bit32 sts;
                  
  SioFlush();
  SioLock(TRUE);
  if (!_FileHandlerCheck()) 
    {
    SioLock(FALSE);
    return(-1);   
    }         
  _StreamOut(FILER);
  _StreamOut(FREMOVE);
  _FilePutString(file_name);
  if (!_FileHandlerResponce(FREMOVE)) 
    {
    SioLock(FALSE);
    return(-1);   
    }
  if (!_FileGetBit32(&sts)) 
    {
    SioLock(FALSE);
    return(-1);   
    }
  if (sts)
    {
    SioLock(FALSE);
    return(-1);   
    }
  SioLock(FALSE);
  return(0);
  }

FFS_FILE *_SioFileOpen(const char *file_name, const char *mode)
  {
  bit32 handle;
  FFS_FILE *pFCB;
                  
  if (!(pFCB=fcb_FileGetFCB()))
    {
    return(0);   
    }  
  SioFlush();
  SioLock(TRUE);
  if (!_FileHandlerCheck()) 
    {
    SioLock(FALSE);
    return(0);