669
/* Sets input and output filters on Soundblaster Pro card */

#include <stdio.h>

int on_off_val, hi_lo_val, dnfi_val;
int reg_0C_val, reg_0E_val;

main(int argc,char **argv)
{
     if(argc > 1)
     {
          on_off_val = atoi(argv[1]);

          outportb(0x224,0x0C);
          reg_0C_val = inportb(0x225);

          switch(on_off_val)
          {
               case 1:   reg_0C_val = reg_0C_val & 0xDF;
                         if(argc == 4)
                              hi_lo_val = atoi(argv[2]);
                         else break;

                         switch(hi_lo_val){
                         case 1: reg_0C_val = reg_0C_val | 0x08;break;
                         case 0: reg_0C_val = reg_0C_val & 0xF7;break;
                         }
                         break;     
                  
               case 0:   reg_0C_val = reg_0C_val | 0x20;
          }
          outportb(0x224,0x0C);
          outportb(0x225,reg_0C_val);

          dnfi_val = atoi(argv[argc-1]);
          
          outportb(0x224,0x0E);
          reg_0E_val = inportb(0x225);
     
          switch(dnfi_val)
          {
               case 1: reg_0E_val = reg_0E_val & 0xDF;break;
               case 0: reg_0E_val = reg_0E_val | 0x20;break;
          }

          outportb(0x224,0x0E);
          outportb(0x225,reg_0E_val);
     }
     else
     {
          printf("Sets filters on Soundblaster Pro sound card\n");
          printf("usage: setfilt <ANFIOnOff> [<FiltType>] <DNFIOnOff>\n\n");
          printf("ANFI, DNFI: 1=On, 0=Off    FiltType: 1=High, 0=Low\n");
     }
}
   
.

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