hwdrv_apci2200.c

最新版comedi的源码

          ui_Temp=ui_Temp|ui_Temp1;  
          data[0]=(data[0] << ui_NoOfChannel)^0xffff;
          data[0]=data[0]& ui_Temp; 
          outw(data[0],devpriv->iobase+APCI2200_DIGITAL_OP); 
          }//if(data[1]==0) 
        else
          {
          if(data[1]==1)
             { 
             switch( ui_NoOfChannel)
	       {

	       case 2: data[0]=~data[0]&0x3; 
                       ui_Temp1=3;
                       ui_Temp1=ui_Temp1<<2*data[2];
                       ui_Temp=ui_Temp|ui_Temp1;   
                       data[0]=((data[0] << (2*data[2]))^0xffff)& ui_Temp; 
	               break;


	       case 4:data[0]=~data[0]&0xf;
                      ui_Temp1=15;
                      ui_Temp1=ui_Temp1<<4*data[2];
                      ui_Temp=ui_Temp|ui_Temp1;    
                      data[0]=((data[0] << (4*data[2]))^0xffff)&ui_Temp;
	              break;

	        case 8: data[0]=~data[0]&0xff;
                          ui_Temp1=255;
                          ui_Temp1=ui_Temp1<<8*data[2];
                          ui_Temp=ui_Temp|ui_Temp1;    
                          data[0]=((data[0] << (8*data[2]))^0xffff)&ui_Temp;
                          break;
                 case 15: break;

               default:
 	              comedi_error(dev," chan spec wrong");
		      return -EINVAL;   // "sorry channel spec wrong "  
                

              }//switch(ui_NoOfChannels)
   
            outw(data[0],devpriv->iobase+APCI2200_DIGITAL_OP);
            }// if(data[1]==1)
         else
           {
            printk("\nSpecified channel not supported\n");
           }//else if(data[1]==1)
         }//elseif(data[1]==0)
      }//if(data[3]==1);
   else
      {
       printk("\nSpecified functionality does not exist\n");
       return -EINVAL;
      }//if else data[3]==1)
   }//if else data[3]==0) 
    return (insn->n);;
}


/*
+----------------------------------------------------------------------------+
| Function   Name   : int i_APCI2200_ReadDigitalOutput                       |
|			(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,
                    lsampl_t *data) 	                                     |
+----------------------------------------------------------------------------+
| Task              : Read  value  of the selected channel or port           |
+----------------------------------------------------------------------------+
| Input Parameters  : comedi_device *dev      : Driver handle                |
|                     comedi_subdevice *s,   :pointer to subdevice structure
                      comedi_insn *insn      :pointer to insn structure      |
|                     lsampl_t *data          : Data Pointer to read status  |
+----------------------------------------------------------------------------+
| Output Parameters :	--													 |
+----------------------------------------------------------------------------+
| Return Value      : TRUE  : No error occur                                 |
|		            : FALSE : Error occur. Return the error          |
|			                                                         |
+----------------------------------------------------------------------------+
*/

INT i_APCI2200_ReadDigitalOutput(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data) 
{

UINT ui_Temp;
UINT ui_NoOfChannel = CR_CHAN(insn->chanspec); // get the channel
ui_Temp=data[0];
*data=inw(devpriv->iobase+APCI2200_DIGITAL_OP);
if(ui_Temp==0)
   {
   *data=(*data >> ui_NoOfChannel)&0x1; 
   }//if(ui_Temp==0)
else
   {
    if(ui_Temp==1)
       {
       switch( ui_NoOfChannel)
	 {

	 case 2:*data=(*data >>(2*data[1]))&3; 
	        break;

 
	 case 4:*data=(*data >>(4*data[1]))&15; 
	       break;

	 case 8: *data=(*data >>(8*data[1]))&255;  
                   break;
 
         case 15: break;
 
         default:
	          comedi_error(dev," chan spec wrong");
		  return -EINVAL;   // "sorry channel spec wrong "  
          

         }//switch(ui_NoOfChannels)    
       }//if(ui_Temp==1)
   else
     {
     printk("\nSpecified channel not supported \n");
     }//elseif(ui_Temp==1)
  }//elseif(ui_Temp==0)
return insn->n;
}

/*
+----------------------------------------------------------------------------+
| Function   Name   : int i_APCI2200_ConfigWatchdog(comedi_device *dev,
                      comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)  |
|				                                                     |
+----------------------------------------------------------------------------+
| Task              : Configures The Watchdog                                |
+----------------------------------------------------------------------------+
| Input Parameters  :   comedi_device *dev      : Driver handle              |
|                     comedi_subdevice *s,   :pointer to subdevice structure
                      comedi_insn *insn      :pointer to insn structure      |
|                     lsampl_t *data          : Data Pointer to read status                                                                                                             |  
+----------------------------------------------------------------------------+
| Output Parameters :	--													 |
+----------------------------------------------------------------------------+
| Return Value      : TRUE  : No error occur                                 |
|		            : FALSE : Error occur. Return the error          |
|			                                                         |
+----------------------------------------------------------------------------+
*/

int i_APCI2200_ConfigWatchdog(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)
{
if(data[0]==0)
   {
   //Disable the watchdog
   outw(0x0,devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_ENABLEDISABLE);
   //Loading the Reload value
   outw(data[1],devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_RELOAD_VALUE);
   data[1]=data[1]>>16;
   outw(data[1],devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_RELOAD_VALUE+2);
   }//if(data[0]==0)
else
   {
     printk("\nThe input parameters are wrong\n");
     return -EINVAL; 
   }//elseif(data[0]==0)

return insn->n;
}

 /*
+----------------------------------------------------------------------------+
| Function   Name   : int i_APCI2200_StartStopWriteWatchdog                  |
|				(comedi_device *dev,comedi_subdevice *s,
                     comedi_insn *insn,lsampl_t *data);                      |
+----------------------------------------------------------------------------+
| Task              : Start / Stop The Watchdog                              |
+----------------------------------------------------------------------------+
| Input Parameters  : comedi_device *dev      : Driver handle                |
|                     comedi_subdevice *s,   :pointer to subdevice structure
                      comedi_insn *insn      :pointer to insn structure      |
|                     lsampl_t *data          : Data Pointer to read status  |
+----------------------------------------------------------------------------+
| Output Parameters :	--													 |
+----------------------------------------------------------------------------+
| Return Value      : TRUE  : No error occur                                 |
|		            : FALSE : Error occur. Return the error          |
|			                                                         |
+----------------------------------------------------------------------------+
*/

int i_APCI2200_StartStopWriteWatchdog(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data) 
{
   switch(data[0])
      {
       case 0://stop the watchdog
                outw(0x0,devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_ENABLEDISABLE);//disable the watchdog
                break;
       case 1://start the watchdog
               outw(0x0001,devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_ENABLEDISABLE);
               break;
       case 2://Software trigger  
              outw(0x0201,devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_ENABLEDISABLE);
              break;
       default:printk("\nSpecified functionality does not exist\n");
	       return -EINVAL;
       }// switch(data[0])        
return insn->n;
}
/*
+----------------------------------------------------------------------------+
| Function   Name   : int i_APCI2200_ReadWatchdog                            |
|			(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,
                    lsampl_t *data); 	                                     |
+----------------------------------------------------------------------------+
| Task              : Read The Watchdog                                      |
+----------------------------------------------------------------------------+
| Input Parameters  :   comedi_device *dev      : Driver handle              |
|                     comedi_subdevice *s,   :pointer to subdevice structure
                      comedi_insn *insn      :pointer to insn structure      |
|                     lsampl_t *data          : Data Pointer to read status  |
+----------------------------------------------------------------------------+
| Output Parameters :	--													 |
+----------------------------------------------------------------------------+
| Return Value      : TRUE  : No error occur                                 |
|		            : FALSE : Error occur. Return the error          |
|			                                                         |
+----------------------------------------------------------------------------+
*/

int i_APCI2200_ReadWatchdog(comedi_device *dev,comedi_subdevice *s,comedi_insn *insn,lsampl_t *data)
 {
 data[0]= inw(devpriv->iobase+APCI2200_WATCHDOG +APCI2200_WATCHDOG_STATUS)&0x1; 
return insn->n;
}
/*
+----------------------------------------------------------------------------+
| Function   Name   : int i_APCI2200_Reset(comedi_device *dev)               |                                                                                                          |
+----------------------------------------------------------------------------+
| Task              :resets all the registers                                |
+----------------------------------------------------------------------------+
| Input Parameters  : comedi_device *dev
+----------------------------------------------------------------------------+
| Output Parameters :	--													 |
+----------------------------------------------------------------------------+
| Return Value      :                                                        |
|			                                                         |
+----------------------------------------------------------------------------+
*/
	  
INT i_APCI2200_Reset(comedi_device *dev) 
{
  outw(0x0 ,devpriv->iobase+APCI2200_DIGITAL_OP);//RESETS THE DIGITAL OUTPUTS
  outw(0x0,devpriv->iobase+APCI2200_WATCHDOG + APCI2200_WATCHDOG_ENABLEDISABLE);
 outw(0x0,devpriv->iobase+APCI2200_WATCHDOG +APCI2200_WATCHDOG_RELOAD_VALUE);
 outw(0x0,devpriv->iobase+APCI2200_WATCHDOG +APCI2200_WATCHDOG_RELOAD_VALUE+2);
  return 0;
}