apci1710_pwm.c

最新版comedi的源码

					      }

					   ul_LowTiming     = ul_LowTiming - 1;
					   ul_LowTimerValue = ul_LowTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_LowTimerValue = (ULONG) ((double) (ul_LowTimerValue) * 1.007752288);
					      }
					

					break;

				   /******/
				   /* æs */
				   /******/

				   case 1:
					
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_LowTimerValue = (ULONG) (ul_LowTiming * (0.25 * b_ClockSelection));

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) ul_LowTiming * (0.25 * (double) b_ClockSelection)) >= ((double) ((double) ul_LowTimerValue + 0.5)))
					      {
					      ul_LowTimerValue = ul_LowTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealLowTiming = (ULONG) (ul_LowTimerValue / (0.25 * (double) b_ClockSelection));
					   d_RealLowTiming    = (double) ul_LowTimerValue / ((double) 0.25 * (double) b_ClockSelection);

					   if ((double) ((double) ul_LowTimerValue / (0.25 * (double) b_ClockSelection)) >= (double) ((double) *pul_RealLowTiming + 0.5))
					      {
					      *pul_RealLowTiming = *pul_RealLowTiming + 1;
					      }

					   ul_LowTiming     = ul_LowTiming - 1;
					   ul_LowTimerValue = ul_LowTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_LowTimerValue = (ULONG) ((double) (ul_LowTimerValue) * 1.007752288);
					      }
					

					break;

				   /******/
				   /* ms */
				   /******/

				   case 2:
					
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_LowTimerValue = ul_LowTiming * (250.0 * b_ClockSelection);

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) ul_LowTiming * (250.0 * (double) b_ClockSelection)) >= ((double) ((double) ul_LowTimerValue + 0.5)))
					      {
					      ul_LowTimerValue = ul_LowTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealLowTiming = (ULONG) (ul_LowTimerValue / (250.0 * (double) b_ClockSelection));
					   d_RealLowTiming    = (double) ul_LowTimerValue / (250.0 * (double) b_ClockSelection);

					   if ((double) ((double) ul_LowTimerValue / (250.0 * (double) b_ClockSelection)) >= (double) ((double) *pul_RealLowTiming + 0.5))
					      {
					      *pul_RealLowTiming = *pul_RealLowTiming + 1;
					      }

					   ul_LowTiming     = ul_LowTiming - 1;
					   ul_LowTimerValue = ul_LowTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_LowTimerValue = (ULONG) ((double) (ul_LowTimerValue) * 1.007752288);
					      }
					
					break;

				   /*****/
				   /* s */
				   /*****/

				   case 3:
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_LowTimerValue = (ULONG) (ul_LowTiming * (250000.0 * b_ClockSelection));

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) ul_LowTiming * (250000.0 * (double) b_ClockSelection)) >= ((double) ((double) ul_LowTimerValue + 0.5)))
					      {
					      ul_LowTimerValue = ul_LowTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealLowTiming = (ULONG) (ul_LowTimerValue / (250000.0 * (double) b_ClockSelection));
					   d_RealLowTiming    = (double) ul_LowTimerValue / (250000.0 * (double) b_ClockSelection);

					   if ((double) ((double) ul_LowTimerValue / (250000.0 * (double) b_ClockSelection)) >= (double) ((double) *pul_RealLowTiming + 0.5))
					      {
					      *pul_RealLowTiming = *pul_RealLowTiming + 1;
					      }

					   ul_LowTiming     = ul_LowTiming - 1;
					   ul_LowTimerValue = ul_LowTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_LowTimerValue = (ULONG) ((double) (ul_LowTimerValue) * 1.007752288);
					      }
					

					break;

				   /******/
				   /* mn */
				   /******/

				   case 4:
					
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_LowTimerValue = (ULONG) ((ul_LowTiming * 60) * (250000.0 * b_ClockSelection));

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) (ul_LowTiming * 60.0) * (250000.0 * (double) b_ClockSelection)) >= ((double) ((double) ul_LowTimerValue + 0.5)))
					      {
					      ul_LowTimerValue = ul_LowTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealLowTiming = (ULONG) (ul_LowTimerValue / (250000.0 * (double) b_ClockSelection)) / 60;
					   d_RealLowTiming    = ((double) ul_LowTimerValue / (250000.0 * (double) b_ClockSelection)) / 60.0;

					   if ((double) (((double) ul_LowTimerValue / (250000.0 * (double) b_ClockSelection)) / 60.0) >= (double) ((double) *pul_RealLowTiming + 0.5))
					      {
					      *pul_RealLowTiming = *pul_RealLowTiming + 1;
					      }

					   ul_LowTiming     = ul_LowTiming - 1;
					   ul_LowTimerValue = ul_LowTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_LowTimerValue = (ULONG) ((double) (ul_LowTimerValue) * 1.007752288);
					      }
					
					break;
				   }

				/*************************************/
				/* Calculate the high division fator */
				/*************************************/

				switch (b_TimingUnit)
				   {
				   /******/
				   /* ns */
				   /******/

				   case 0:
					
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_HighTimerValue = (ULONG) (ul_HighTiming * (0.00025 * b_ClockSelection));

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) ul_HighTiming * (0.00025 * (double) b_ClockSelection)) >= ((double) ((double) ul_HighTimerValue + 0.5)))
					      {
					      ul_HighTimerValue = ul_HighTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealHighTiming = (ULONG) (ul_HighTimerValue / (0.00025 * (double) b_ClockSelection));
					   d_RealHighTiming    = (double) ul_HighTimerValue / (0.00025 * (double) b_ClockSelection);

					   if ((double) ((double) ul_HighTimerValue / (0.00025 * (double) b_ClockSelection)) >= (double) ((double) *pul_RealHighTiming + 0.5))
					      {
					      *pul_RealHighTiming = *pul_RealHighTiming + 1;
					      }

					   ul_HighTiming     = ul_HighTiming - 1;
					   ul_HighTimerValue = ul_HighTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_HighTimerValue = (ULONG) ((double) (ul_HighTimerValue) * 1.007752288);
					      }
					

					break;

				   /******/
				   /* æs */
				   /******/

				   case 1:
					
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_HighTimerValue = (ULONG) (ul_HighTiming * (0.25 * b_ClockSelection));

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) ul_HighTiming * (0.25 * (double) b_ClockSelection)) >= ((double) ((double) ul_HighTimerValue + 0.5)))
					      {
					      ul_HighTimerValue = ul_HighTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealHighTiming = (ULONG) (ul_HighTimerValue / (0.25 * (double) b_ClockSelection));
					   d_RealHighTiming    = (double) ul_HighTimerValue / ((double) 0.25 * (double) b_ClockSelection);

					   if ((double) ((double) ul_HighTimerValue / (0.25 * (double) b_ClockSelection)) >= (double) ((double) *pul_RealHighTiming + 0.5))
					      {
					      *pul_RealHighTiming = *pul_RealHighTiming + 1;
					      }

					   ul_HighTiming     = ul_HighTiming - 1;
					   ul_HighTimerValue = ul_HighTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_HighTimerValue = (ULONG) ((double) (ul_HighTimerValue) * 1.007752288);
					      }
					

					break;

				   /******/
				   /* ms */
				   /******/

				   case 2:
					
					   /******************/
					   /* Timer 0 factor */
					   /******************/

					   ul_HighTimerValue = ul_HighTiming * (250.0 * b_ClockSelection);

					   /*******************/
					   /* Round the value */
					   /*******************/

					   if ((double) ((double) ul_HighTiming * (250.0 * (double) b_ClockSelection)) >= ((double) ((double) ul_HighTimerValue + 0.5)))
					      {
					      ul_HighTimerValue = ul_HighTimerValue + 1;
					      }

					   /*****************************/
					   /* Calculate the real timing */
					   /*****************************/

					   *pul_RealHighTiming = (ULONG) (ul_HighTimerValue / (250.0 * (double) b_ClockSelection));
					   d_RealHighTiming    = (double) ul_HighTimerValue / (250.0 * (double) b_ClockSelection);

					   if ((double) ((double) ul_HighTimerValue / (250.0 * (double) b_ClockSelection)) >= (double) ((double) *pul_RealHighTiming + 0.5))
					      {
					      *pul_RealHighTiming = *pul_RealHighTiming + 1;
					      }

					   ul_HighTiming     = ul_HighTiming - 1;
					   ul_HighTimerValue = ul_HighTimerValue - 2;

					   if (b_ClockSelection != APCI1710_40MHZ)
					      {
					      ul_HighTimerValue = (ULONG) ((double) (ul_HighTimerValue) * 1.007752288);
					      }
					

					break;

				   /*****/
				   /* s */
				   /*****/

				   case 3: