Exemple #1
0
/**
 * Read a page from a memory bank and print in hex
 *
 * bank    MemoryBank to read a page from
 * portnum port number
 * SNum    The serial number of the device to read.
 * pg      page to read
 *
 * @return 'true' if the bank page was dumped.
 */
SMALLINT dumpBankPage (SMALLINT bank, int portnum, uchar SNum[8], int pg)
{
   uchar read_buf[64];
   uchar extra_buf[32];
   int i;
   int result;

   // read a page (use the most verbose and secure method)
   if (owHasPageAutoCRC(bank,SNum))
   {
      if(owHasExtraInfo(bank,SNum))
         result = owReadPageExtraCRC(bank,portnum,&SNum[0],
                     pg,&read_buf[0],&extra_buf[0]);
      else
         result = owReadPageCRC(bank,portnum,&SNum[0],pg,&read_buf[0]);
   }
   else
   {
      if(owHasExtraInfo(bank,SNum))
         result = owReadPageExtra(bank,portnum,&SNum[0],
                     pg,FALSE,&read_buf[0],&extra_buf[0]);
      else
         result = owReadPage(bank,portnum,&SNum[0],pg,FALSE,&read_buf[0]);
   }

   if(!result)
      return FALSE;

   printf("Page %d:  ",pg);

   for(i=0;i<owGetPageLength(bank,SNum);i++)
      printf("%02X ",read_buf[i]);
   printf("\n");

   if(owHasExtraInfo(bank,SNum))
   {
      printf("Extra: ");
      for(i=0;i<owGetExtraInfoLength(bank,SNum);i++)
         printf("%02X ",extra_buf[i]);
      printf("\n");
   }

   return TRUE;
}
Exemple #2
0
//--------------------------------------------------------------------------
// Read_Page:
//
// Read a default data structure page from the current Touch Memory.
// The record will be placed shorto a (uchar) memory location
// starting at the location poshorted to by (buf).  This function will 
// read a page out of normal memory (flag = REGMEM) or a status memory
// page out of an eprom (flag = STATUSMEM).  If the page being read is
// redirected as in an eprom device then the page value passes by referece
// is changed to match the new page.
//
// portnum    the port number of the port being used for the
//            1-Wire Network.
// SNum       the serial number for the part that the read is
//            to be done on.
// flag       tells weather to read regular memory or status memory
// buff       location for data read
// page       page number to read packet from
// len        the length of the data read
//
// return TRUE if the data was read correctly
//  
SMALLINT Read_Page(int portnum, uchar *SNum, uchar *buff, uchar flag, 
                   PAGE_TYPE *pg, int *len)
{
	SMALLINT  bank;
	PAGE_TYPE page;
   int       jobopen = FALSE;
   int       cnt = 0;
	uchar     extra[3],space;
	uchar     temp_buff[32];
	uchar     rd_buf[2];
   uchar     addpg;
   int       i;	

	
   // Are program jobs possible
   // is there a job that has been opened and is this a regular memory read
   if(isJob(portnum,SNum))
      jobopen = TRUE;
            
   // loop while redirected
   for (cnt = 0; cnt <= 256; cnt++)
   {       
      // if an program job is open then check there for page
      if(jobopen && (flag != STATUSMEM))
      {
         if(getJobData(portnum,SNum,*pg,buff,len))
         {
            return TRUE;
         }
      }

      // nope so look for page in cache
      if(FindPage(portnum,SNum,pg,flag,TRUE,buff,len,&space))  
      {
         if(*len == 0x41)
         {
            *pg = buff[0];
         }
         else if(flag != STATUSMEM)
         {
     		   return TRUE;
         }
      }

      bank = getBank(portnum,SNum,*pg,flag);
		page = getPage(portnum,SNum,*pg,flag);
			
      // nope so get it from the part      
      // if the page is in the status memory then call read status
      if (flag == STATUSMEM)
      {
      	if(owIsWriteOnce(bank,portnum,SNum) && owHasExtraInfo(bank,SNum))
      	{
      		if(!owReadPageExtraCRC(bank,portnum,SNum,page,&temp_buff[0],&extra[0]))
            {
               if(extra[0] == 0xFF)
         		   return FALSE;
            }
      	}
      	else
      	{
            if(owHasPageAutoCRC(bank,SNum))
            {
          	   if(!owReadPageCRC(bank,portnum,SNum,page,&temp_buff[0]))
                  return FALSE;
            }
            else
            {
               if(!owReadPage(bank,portnum,SNum,page,FALSE,&temp_buff[0]))
  		            return FALSE;
            }
      				
         	extra[0] = 0xFF;
         }

         if(extra[0] != 0xFF)
         {
      	   rd_buf[0] = ~extra[0];
      		addpg = AddPage(portnum,SNum,*pg,&rd_buf[0],STATUSMEM);
      		*pg = (PAGE_TYPE) rd_buf[0];      
            continue;
         }
         else
         {
            *len = 8;
            for(i=0;i<*len;i++)
               buff[i] = temp_buff[i];
            addpg = AddPage(portnum,SNum,*pg,&buff[0],STATUSMEM);
//  		   	   AddPage(portnum,SNum,*pg,&buff[0],*len);
//               AddPage(portnum,SNum,*pg,&buff[0],0x41);
            return TRUE;

         }
      }
      // else call on the regular readpack function
      else 
      {          
         *len = 0;
      	if(owIsWriteOnce(bank,portnum,SNum) && owHasExtraInfo(bank,SNum))
      	{
      		if(!owReadPagePacketExtra(bank,portnum,SNum,page,FALSE,
         										&temp_buff[0],len,&extra[0]))
            {
               if(extra[0] == 0xFF)
         		   return FALSE;
            }
      	}
      	else
      	{
            if(owHasPageAutoCRC(bank,SNum))
            {
         	   if(!owReadPageCRC(bank,portnum,SNum,page,&temp_buff[0]))
                  return FALSE;
            }
            else
            {
               if(!owReadPage(bank,portnum,SNum,page,FALSE,&temp_buff[0]))
  		            return FALSE;
            }
      				
      		extra[0] = 0xFF;
         } 
            
         if(extra[0] != 0xFF)
         {
         	rd_buf[0] = ~extra[0];
      		addpg = AddPage(portnum,SNum,*pg,&rd_buf[0],REDIRMEM);
      		*pg = (PAGE_TYPE) rd_buf[0];  
            continue;
         }
         else
         {
            if(*len > 0)
            {
               if(*len > 32)
               {
                  OWERROR(OWERROR_INVALID_PACKET_LENGTH);
                  return FALSE;
               }

               for(i=0;i<(*len);i++)
                  buff[i] = temp_buff[i];
            }
            else
            {
               if(temp_buff[0] > 32)
               {
                  OWERROR(OWERROR_INVALID_PACKET_LENGTH);
                  return FALSE;
               }

     	     	   for(i=1;i<(temp_buff[0]+1);i++)
     	   		   buff[i-1] = temp_buff[i];
               *len = temp_buff[0];
            }

            addpg = AddPage(portnum,SNum,*pg,&buff[0],*len);
            return TRUE;
         }
    	}
   }         
   
   // could not find the page
   return FALSE;
}