InBuffer.cpp

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//#include "CommandBuffer.h"
#include "InBuffer.h"
//#include <string.h>
//CommandBuffer::ackReturned( int faceID);
 
unsigned char  setIthBit(unsigned char i, unsigned char x);
 
void InBuffer::setPortConf( unsigned char (*getfun)(void), void (*modefun)(unsigned char x)){
   getPort=getfun;
   setPortMode=modefun;
   setPortMode((unsigned char)0); /* input ... for sh7125 */
}
 
//void trg_putc(unsigned char c);
unsigned char setIthBit(unsigned char i, unsigned char x);
 
void InBuffer::setCommand(CommandBuffer *com){
    command=com;
}
 
void InBuffer::intrProcess(void){
   volatile unsigned char cx;
   volatile unsigned char i,j;
//   volatile unsigned char sbi; // p % 8 = p & 0x07... for access bs
//   volatile unsigned char sbj; // p/8 = p >>3... for access bits
//   volatile unsigned char cs;
   i=getPort();
   if(i==0) now=0;
   else now=1;
//  xputc(' '+i);
 
   if(status==0){ /* waiting */
      if(last==0 && now==1){  /* some thing was happen */
//          printf("f=%d\n",(int)((*this).faceID));
         /* start reading */
         status=1;
//        trg_puts("status 0->1 - ");trg_putc((*this).channelID+'0');trg_puts("\n");
//        (*this).sampleIntervalCounter=0;
         p=0;
         for(j=0;j<MaxBits;j++){
            bits[j]=0x00;
         }
      }
   }
   else
   if(status==1){ /* reading bits sequence */
//     if((*this).sampleIntervalCounter==0){
/**/
//         xputc(' '+i);
        bits[p]=now;
        p++;
/**/
/*
        if((*this).now!=0){
           sbj=(*this).p>>3;
           cs=(*this).bits[sbj];
           sbi=(*this).p & 0x07;
           cs=setIthBit(sbi,cs);
           (*this).bits[sbj]=cs;
 
        }
        (*this).p++;
        */
        if(p>=ReceiveBits){
//          xputs("\n\r");
          p=0;
          now=0;
          last=0;
          cx=decode();
          if(cx==0xff){
             status=0;
          }
          else
          if(cx==0x00){
             status=0;
          }
          else{
//             trg_puts("--");
//             trg_putc(cx);trg_puts("\n");
//                      xputc(cx); xputs("]n");
//                      xputs("bits=");
//                      for(j=0;j<ReceiveBits;j++) xputc('0'+bits[j]);
//                      xputs("\n\r");
//                      printf("cx=%d %c\n\r",0+cx,cx);
             status=2;
             cin=cx;
             parse(cx);
          }
        }
/*
     }
     else{
     }
     (*this).sampleIntervalCounter++;
     if((*this).sampleIntervalCounter>=(*this).sampleInterval){
        (*this).sampleIntervalCounter=0;
     }
     */
   }
   else
   if(status==2) {
       status=0;
   }
   last=now;
   return;
}
/*
unsigned char startWithForInBit(struct inbit *this, char *c){
  unsigned char p;
  p=0;
  while(c[p]!=0){
     if(c[p]!=(*this).inputBuffer[p]) return 0;
     p++;
  }
  return 1;
}
 
void shiftLeftForInBit(struct inbit *this, unsigned char i){
  unsigned j,k;
  k=0;
  for(j=i;j<(*this).cbp;j++){
     (*this).inputBuffer[k]=(*this).inputBuffer[j];
     k++;
  }
  (*this).cbp=(*this).cbp-i;
}
*/
unsigned char  setIthBit(unsigned char i, unsigned char x){
   unsigned char j;
   unsigned char mask;
   unsigned char r;
   mask=0x80;
   for(j=0;j<i;j++){
      mask=mask>>1;
   }
   r=x | mask;
   return r;
}
 
unsigned char getIthBit(unsigned char i,unsigned char x){
   unsigned char j;
   unsigned char mask;
   unsigned char r;
   mask=0x80;
   for(j=0;j<i;j++){
      mask=mask>>1;
   }
   r=x & mask;
   if(r==0x00){
      return r;
   }
   else{
      return 0x01;
   }
}
 
void printHexChar(char c){
    int ch,cl;
    ch=c;
    ch=ch>>4;
    cl=c & 0x0f;
    if(ch<10)
//    printf("%d",ch);
        xputd(ch);
    else
//    printf("%c",ch-10+'a');
        xputd(ch-10+'a');
    if(cl<10)
//    printf("%d",cl);
        xputd(cl);
    else
//    printf("%c",cl-10+'a');
        xputd(cl-10+'a');
}
 
void printHexArray(int size, char x[]){
    int i;
//    unsigned int ch,cl;
    for(i=0;i<size;i++){
        printHexChar(x[i]);
    }
//    printf("\n");
    xputs("\n");
}
 
unsigned char InBuffer::decode(void){
  volatile unsigned char startp;
  volatile unsigned char c,i;
//  volatile unsigned char sbi;
//  volatile unsigned char sbj;
//  volatile unsigned char cs;
//  unsigned char s[3];
 
//  trg_putHexArray((*this).bits,MaxBits);
//  printHexArray(bitsParChar,(*this).bits);
  startp=sampleInterval>>1;
  startp=startp+sampleInterval;
  c=0x00;
  for(i=0;i<8;i++){
//     trg_puts(" startp=");hex2str(startp,s);trg_puts(s);trg_puts("\n");
     c=c<<1;
     /* */
     if(bits[startp]==1){
       c=c|0x01;
     }
     /* */
     /*
     sbi=startp & 0x07;
     sbj=startp >> 3;
     cs=(*this).bits[sbj];
     c=c|getIthBit(sbi,cs);
     */
     startp=startp+sampleInterval;
  }
//  printf("decode c="); printHexChar(c); printf("\n");
  return c;
}
 
unsigned char InBuffer::getChar(void){
  unsigned char rtn;
  if(status==0) return 0x00;
  if(status==1) return 0x00;
//  trg_puts(" getChar"); trg_putc((*this).cin); trg_puts("\n");
  rtn=cin;
  status=0;
  cin=0;
  return rtn;
}
 
void InBuffer::setStatus( unsigned char s){
  status=s;
}
unsigned char InBuffer::getStatus(void){
  return status;
}
 
//void parseForInBit(struct inbit *this, unsigned char c);
 
InBuffer::InBuffer(unsigned char id, CommandBuffer *com ){
  faceID=id;
  sampleInterval=SampleInterval0*SampleIntForDecode0;
  sampleIntForDecode=SampleIntForDecode0;
  status=2;
  setConnected((unsigned char)0);
  cin=0;
  command=com;
    cbp=0;
}
 
void InBuffer::parse( unsigned char c){
//   unsigned char cx;
//   unsigned char p;
//   unsigned char s[3];
   CommandBuffer *com;
   com=command;
//  printf("face-%d char:%c is inputed.\n\r",faceID, c);
//   trg_puts("parseForInBit-1-");trg_putc(c); trg_puts("\n");
//   hex2str(c,s);
//   trg_puts(" codeHex="); trg_puts(s); trg_puts("\n");
   if(cbp>MaxInterFaceStrLen) {
      cbp=0;
   }
   if(cbp==0){
       if(c=='p'){
           cbp++;
             return;
       }
       else
       if(c=='a'){
           cbp=0;
           (*com).ackReturned(faceID);
           return;
       }
   }
   else
   if(cbp==1){
       inlen=h2i1(c);
         cbp++;
         return;
   }
     else
     if(cbp==2){
         inlen=inlen*16+h2i1(c);
         cbp++;
         return;
     }
   else{
      inputBuffer[cbp-3]=c;
      cbp++;
      if(inlen<cbp-3){
          inputBuffer[cbp-2]=0;
  //          returnAck();
          return;
      }
            if(inlen> cbp-3){
                   return;
            }
//   trg_puts("parseForInBit-2"); trg_putc(c); trg_puts("\n");
      inputBuffer[cbp-3]=0;
      int clen=xstrlen(inputBuffer);
      while(1){
         if(((*com).putQueue)(faceID, inputBuffer,clen)==1){
            cbp=0;
            returnAck();
            return;
         }
         wait(100);
      }
   }
 
//   trg_puts("parseForInBit-3");;trg_putc(c); trg_puts("\n");
 
}
 
void InBuffer::returnAck(void){
//    (*command).putChar(faceID,'a');
}
int InBuffer::getNextDoorDirection(void){
    return nextDoorDirection;
}
 
unsigned char InBuffer::getConnected(void){
//  printf("face-%d getConnected=%d\n\r",(int)faceID,(int)connected);   
    return connected;
}
 
void InBuffer::setConnected(unsigned char x){
    connected=x;
//  printf("face-%d setConnected=%d\n\r",(int)faceID,(int)x);
}