workbench/devs/AHI/Drivers/EMU10kx/test_ac97.c

   1
   2 #include <config.h>
   3
   4 #include <proto/dos.h>
   5 #include <proto/exec.h>
   6
   7 #include "emu10kx-ac97.h"
   8 #include "linuxsupport.h"
   9
  10 #define VERSION 6
  11
  12 int
  13 main( void )
  14 {
  15   struct Library* EMU10kxBase;
  16   struct EMU10kxAC97* EMU10kxAC97;
  17   ULONG value;
  18
  19   EMU10kxBase = OpenLibrary( "DEVS:AHI/emu10kx.audio", VERSION );
  20
  21   if( EMU10kxBase == NULL )
  22   {
  23     Printf( "Unable to open DEVS:AHI/emu10kx.audio version %ld.\n", VERSION );
  24     return RETURN_FAIL;
  25   }
  26
  27   Forbid();
  28   EMU10kxAC97 = (struct EMU10kxAC97*) FindSemaphore( EMU10KX_AC97_SEMAPHORE );
  29   if( EMU10kxAC97 != NULL )
  30   {
  31     ObtainSemaphore( &EMU10kxAC97->Semaphore );
  32   }
  33   Permit();
  34
  35   if( EMU10kxAC97 == NULL )
  36   {
  37     CloseLibrary( EMU10kxBase );
  38     Printf( "Unable to find semaphore '%s'.\n", (ULONG) EMU10KX_AC97_SEMAPHORE );
  39     return RETURN_FAIL;
  40   }
  41
  42   Printf( "%ld EMU10kx cards found.\n", EMU10kxAC97->Cards );
  43
  44   value = CallHook( &EMU10kxAC97->GetFunc, (Object*) EMU10kxBase,
  45                     0, AC97_CD_VOL );
  46
  47   Printf( "CD volume on card 0 is 0x%04lx\n", value );
  48
  49   Printf( "Setting it to 0x0000.\n" );
  50   CallHook( &EMU10kxAC97->SetFunc, (Object*) EMU10kxBase, 0, AC97_CD_VOL, 0 );
  51
  52   Delay( 3 * 50 );
  53
  54   Printf( "Restoring it.\n" );
  55   CallHook( &EMU10kxAC97->SetFunc, (Object*) EMU10kxBase, 0, AC97_CD_VOL, value );
  56
  57   Printf( "Exiting.\n" );
  58
  59   if( EMU10kxAC97 != NULL )
  60   {
  61     ReleaseSemaphore( &EMU10kxAC97->Semaphore );
  62   }
  63
  64   CloseLibrary( EMU10kxBase );
  65
  66   return RETURN_OK;
  67 }