addi_eeprom.c

最新版comedi的源码

      v_EepromClock76(dw_Address, dw_RegisterValue);



      /**********************/

      /* Get the result bit */

      /**********************/


     dw_RegisterValueRead = inl(dw_Address);

      /***************/

      /* Wait 0.1 ms */

      /***************/

   
  udelay(100);
     

      /***************************************/

      /* Get bit value and shift into result */

      /***************************************/


      if (dw_RegisterValueRead & 0x8)

	 {


	 /**********/

	 /* Read 1 */

	 /**********/


	 *pw_Value = (*pw_Value << 1) | 0x1;

	 }

      else

	 {

	 /**********/

	 /* Read 0 */

	 /**********/

	 *pw_Value = (*pw_Value << 1);

	 
	}

      }



   /*************************/

   /* Clear all EEPROM bits */

   /*************************/


   dw_RegisterValue = 0x0;



   /********************************************************************/

   /* Toggle EEPROM's Chip select to get it out of Shift Register Mode */

   /********************************************************************/


  outl(dw_RegisterValue,dw_Address);
     
   /***************/

   /* Wait 0.1 ms */

   /***************/

   udelay(100);
    
   }





	/******************************************/
 	/*	EEPROM HEADER READ FUNCTIONS	  */
	/******************************************/

/*
+----------------------------------------------------------------------------+
| Function Name  : INT i_EepromReadMainHeader(WORD w_PCIBoardEepromAddress,  |
|				PCHAR 	pc_PCIChipInformation,comedi_device *dev)    |
+----------------------------------------------------------------------------+
| Task              : Read from eeprom Main Header                           |
+----------------------------------------------------------------------------+
| Input Parameters  : WORD w_PCIBoardEepromAddress : PCI eeprom address      |
|																	 |	
|		      PCHAR pc_PCIChipInformation  : PCI Chip Type.          |
|																	 |
|			  comedi_device *dev		   : comedi device structure |
|											 pointer				 |
+----------------------------------------------------------------------------+
| Output Parameters : -                                                      |
+----------------------------------------------------------------------------+
| Return Value      : 0							                             |
+----------------------------------------------------------------------------+
*/


INT i_EepromReadMainHeader(WORD	w_PCIBoardEepromAddress,PCHAR 	pc_PCIChipInformation,comedi_device *dev)
{
	WORD w_Temp,i,w_Count=0;
        UINT ui_Temp;
	str_MainHeader  s_MainHeader;
	str_DigitalInputHeader	s_DigitalInputHeader;
	str_DigitalOutputHeader s_DigitalOutputHeader;
	//str_TimerMainHeader     s_TimerMainHeader,s_WatchdogMainHeader;
	str_AnalogOutputHeader   s_AnalogOutputHeader;
	str_AnalogInputHeader   s_AnalogInputHeader;

        // Read size
	s_MainHeader.w_HeaderSize = w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+8);
                
        // Read nbr of functionality
	w_Temp = w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+10);
        s_MainHeader.b_Nfunctions =(BYTE)w_Temp & 0x00FF;

       // Read functionality details
	for(i=0;i<s_MainHeader.b_Nfunctions;i++)
	{
         // Read Type
         w_Temp = w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+12+w_Count);
         s_MainHeader.s_Functions[i].b_Type	=(BYTE) w_Temp & 0x3F;
         w_Count=w_Count+2;
	//Read Address
	 s_MainHeader.s_Functions[i].w_Address= w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+12+w_Count);    
	 w_Count=w_Count+2;
	}

        // Display main header info        
	for(i=0;i<s_MainHeader.b_Nfunctions;i++)
	{
	
          switch(s_MainHeader.s_Functions[i].b_Type)
	  {
	    case EEPROM_DIGITALINPUT:               
		 i_EepromReadDigitalInputHeader(w_PCIBoardEepromAddress,pc_PCIChipInformation,
		 s_MainHeader.s_Functions[i].w_Address,&s_DigitalInputHeader);  
                 this_board->i_NbrDiChannel=s_DigitalInputHeader.w_Nchannel;
		 break;

	    case EEPROM_DIGITALOUTPUT:                 
		 i_EepromReadDigitalOutputHeader(w_PCIBoardEepromAddress,pc_PCIChipInformation,
		 s_MainHeader.s_Functions[i].w_Address,&s_DigitalOutputHeader);		 
                 this_board->i_NbrDoChannel=s_DigitalOutputHeader.w_Nchannel;
                 ui_Temp=0xffffffff;
                 this_board->i_DoMaxdata= ui_Temp >>(32 - this_board->i_NbrDoChannel);
		 break;

	    case EEPROM_ANALOGINPUT:
		 i_EepromReadAnlogInputHeader(w_PCIBoardEepromAddress,pc_PCIChipInformation,
		 s_MainHeader.s_Functions[i].w_Address,&s_AnalogInputHeader); 
		 if (!(strcmp(this_board->pc_DriverName, "apci3200")))  
		    this_board->i_NbrAiChannel=s_AnalogInputHeader.w_Nchannel * 4;
		 else
		    this_board->i_NbrAiChannel=s_AnalogInputHeader.w_Nchannel;
                 this_board->i_Dma=s_AnalogInputHeader.b_HasDma;
                 this_board->ui_MinAcquisitiontimeNs=(UINT)s_AnalogInputHeader.w_MinConvertTiming * 1000;
                 this_board->ui_MinDelaytimeNs      =(UINT)s_AnalogInputHeader.w_MinDelayTiming * 1000;  
                 ui_Temp=0xffff;
                 this_board->i_AiMaxdata = ui_Temp >> (16 - s_AnalogInputHeader.b_Resolution);
		 break;

            case EEPROM_ANALOGOUTPUT: 				      
		 i_EepromReadAnlogOutputHeader(w_PCIBoardEepromAddress,pc_PCIChipInformation,
		 s_MainHeader.s_Functions[i].w_Address,&s_AnalogOutputHeader);                 
                 this_board->i_NbrAoChannel=s_AnalogOutputHeader.w_Nchannel;
                 ui_Temp=0xffff;
                 this_board->i_AoMaxdata= ui_Temp >>(16 - s_AnalogOutputHeader.b_Resolution);
		 break;

	    case EEPROM_TIMER:
		 this_board->i_Timer=1;//Timer subdevice present 					
		 break;

	    case EEPROM_WATCHDOG:	 
 		 this_board->i_Timer=1; //Timer subdevice present 
                 break;

            case EEPROM_TIMER_WATCHDOG_COUNTER:	 
 		 this_board->i_Timer=1; //Timer subdevice present				
	  } 
	}

	return 0;
}




/*
+----------------------------------------------------------------------------+
| Function Name  : INT i_EepromReadDigitalInputHeader(WORD 					 |
|			w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,	 |
|			WORD w_Address,str_DigitalInputHeader *s_Header)		 |
|																	 |
+----------------------------------------------------------------------------+
| Task              : Read Digital Input Header                              |
+----------------------------------------------------------------------------+
| Input Parameters  : WORD w_PCIBoardEepromAddress : PCI eeprom address      |
|																	 |
|		      PCHAR pc_PCIChipInformation  : PCI Chip Type.          |
|																	 |
|			 str_DigitalInputHeader *s_Header: Digita Input Header   |
|												   Pointer			 |
+----------------------------------------------------------------------------+
| Output Parameters : -                                                      |
+----------------------------------------------------------------------------+
| Return Value      : 0							                             |
+----------------------------------------------------------------------------+
*/
INT i_EepromReadDigitalInputHeader(WORD w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,WORD w_Address,str_DigitalInputHeader *s_Header)
{
  WORD w_Temp;

 // read nbr of channels
 s_Header->w_Nchannel=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+6);

 // interruptible or not
 w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+8);
 s_Header->b_Interruptible=(BYTE) (w_Temp>>7)& 0x01;

// How many interruptible logic
 s_Header->w_NinterruptLogic=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+10);

 return 0;
}

/*
+----------------------------------------------------------------------------+
| Function Name  : INT i_EepromReadDigitalOutputHeader(WORD 				 |
|			w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,	 |
|			WORD w_Address,str_DigitalOutputHeader *s_Header)	     |
|																	 |
+----------------------------------------------------------------------------+
| Task              : Read Digital Output Header                             |
+----------------------------------------------------------------------------+
| Input Parameters  : WORD w_PCIBoardEepromAddress : PCI eeprom address      |
|																	 |
|		      PCHAR pc_PCIChipInformation  : PCI Chip Type.          |
|																	 |
|			 str_DigitalOutputHeader *s_Header: Digital Output Header|
|											   Pointer				 |
+----------------------------------------------------------------------------+
| Output Parameters : -                                                      |
+----------------------------------------------------------------------------+
| Return Value      : 0							                             |
+----------------------------------------------------------------------------+
*/
INT i_EepromReadDigitalOutputHeader(WORD w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,WORD w_Address,str_DigitalOutputHeader *s_Header)
{
// Read Nbr channels
 s_Header->w_Nchannel=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+6);
return 0;
}

/*
+----------------------------------------------------------------------------+
| Function Name  : INT i_EepromReadTimerHeader(WORD w_PCIBoardEepromAddress, |
|			PCHAR pc_PCIChipInformation,WORD w_Address,				 |
|			str_TimerMainHeader *s_Header)							 | 
+----------------------------------------------------------------------------+
| Task              : Read Timer or Watchdog Header                          |
+----------------------------------------------------------------------------+
| Input Parameters  : WORD w_PCIBoardEepromAddress : PCI eeprom address      |
|																	 |	
|		      PCHAR pc_PCIChipInformation  : PCI Chip Type.          |
|																	 |	
|			 str_TimerMainHeader *s_Header: Timer Header			 |
|											   Pointer				 |
+----------------------------------------------------------------------------+
| Output Parameters : -                                                      |
+----------------------------------------------------------------------------+
| Return Value      : 0							                             |
+----------------------------------------------------------------------------+
*/
INT i_EepromReadTimerHeader(WORD w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,WORD w_Address,str_TimerMainHeader *s_Header)
{

WORD i,w_Size=0,w_Temp;
  

//Read No of Timer
s_Header->w_Ntimer=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+6);
//Read header size

for(i=0;i<s_Header->w_Ntimer;i++)
{
  s_Header->s_TimerDetails[i].w_HeaderSize=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+8+w_Size+0);
  w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+8+w_Size+2) ;

  //Read Resolution
  s_Header->s_TimerDetails[i].b_Resolution=(BYTE)(w_Temp>>10)&0x3F;

  //Read Mode
  s_Header->s_TimerDetails[i].b_Mode		=(BYTE) (w_Temp>>4)&0x3F;

  w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+8+w_Size+4) ;

  //Read MinTiming
  s_Header->s_TimerDetails[i].w_MinTiming	=(w_Temp>>6)&0x3FF; 

  //Read Timebase
  s_Header->s_TimerDetails[i].b_TimeBase	=(BYTE)(w_Temp)&0x3F; 
  w_Size += s_Header->s_TimerDetails[i].w_HeaderSize;
}   
 
return 0;
}



/*
+----------------------------------------------------------------------------+
| Function Name  : INT i_EepromReadAnlogOutputHeader(WORD 					 |
|			w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,	 |
|			WORD w_Address,str_AnalogOutputHeader *s_Header)         | 
+----------------------------------------------------------------------------+
| Task              : Read Nalog Output  Header                              |
+----------------------------------------------------------------------------+
| Input Parameters  : WORD w_PCIBoardEepromAddress : PCI eeprom address      |
|																	 |	
|		      PCHAR pc_PCIChipInformation  : PCI Chip Type.          |
|																	 |
|			 str_AnalogOutputHeader *s_Header:Anlog Output Header    |
|											   Pointer				 |
+----------------------------------------------------------------------------+
| Output Parameters : -                                                      |
+----------------------------------------------------------------------------+
| Return Value      : 0							                             |
+----------------------------------------------------------------------------+
*/

INT i_EepromReadAnlogOutputHeader(WORD w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,WORD w_Address,str_AnalogOutputHeader *s_Header)
{
  WORD w_Temp;
  // No of channels for 1st hard component
  w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+10);
  s_Header->w_Nchannel=(w_Temp>>4)& 0x03FF;
  // Resolution for 1st hard component
  w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+16);
  s_Header->b_Resolution=(BYTE)(w_Temp>>8) & 0xFF;
  return 0;
}


/*
+----------------------------------------------------------------------------+
| Function Name  : INT i_EepromReadAnlogInputHeader(WORD 					 |
|			w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,     |
|			WORD w_Address,str_AnalogInputHeader *s_Header)          |
+----------------------------------------------------------------------------+
| Task              : Read Nalog Output  Header                              |
+----------------------------------------------------------------------------+
| Input Parameters  : WORD w_PCIBoardEepromAddress : PCI eeprom address      |
|																	 |
|		      PCHAR pc_PCIChipInformation  : PCI Chip Type.          |
|																	 |
|			 str_AnalogInputHeader *s_Header:Anlog Input Header      |  
|											   Pointer				 |
+----------------------------------------------------------------------------+
| Output Parameters : -                                                      |
+----------------------------------------------------------------------------+
| Return Value      : 0							                             |
+----------------------------------------------------------------------------+
*/

// Reads only for ONE  hardware component
INT i_EepromReadAnlogInputHeader(WORD w_PCIBoardEepromAddress,PCHAR pc_PCIChipInformation,WORD w_Address,str_AnalogInputHeader *s_Header)
{
  WORD w_Temp,w_Offset;
  w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+10);
  s_Header->w_Nchannel=(w_Temp>>4)& 0x03FF;
  s_Header->w_MinConvertTiming=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+16);
s_Header->w_MinDelayTiming=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+30);
w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+20);
s_Header->b_HasDma=(w_Temp>>13) & 0x01; // whether dma present or not

w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+72);// reading Y
w_Temp=w_Temp & 0x00FF;
if(w_Temp)//Y>0
{
w_Offset=74+(2*w_Temp)+(10*(1+(w_Temp/16)));// offset of first analog input single header
w_Offset= w_Offset+2; // resolution
}
else//Y=0
{ 
w_Offset=74; 
w_Offset= w_Offset+2; // resolution
}

// read Resolution
w_Temp=w_EepromReadWord(w_PCIBoardEepromAddress,pc_PCIChipInformation,0x100+w_Address+w_Offset);
s_Header->b_Resolution=w_Temp & 0x001F;// last 5 bits

return 0;
}