reactos/lib/drivers/sound/mmebuddy/auxiliary/auxMessage.c

   1 /*
   2  * PROJECT:     ReactOS Sound System "MME Buddy" Library
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        lib/sound/mmebuddy/auxiliary/auxMessage.c
   5  *
   6  * PURPOSE:     Provides the auxMessage exported function, as required by
   7  *              the MME API, for auxiliary device support.
   8  *
   9  * PROGRAMMERS: Andrew Greenwood (silverblade@reactos.org)
  10 */
  11
  12 #include <windows.h>
  13 #include <mmsystem.h>
  14 #include <mmddk.h>
  15
  16 #include <ntddsnd.h>
  17 #include <sndtypes.h>
  18
  19 #include <mmebuddy.h>
  20
  21 /*
  22     Standard MME driver entry-point for messages relating to auxiliary devices.
  23 */
  24 APIENTRY DWORD
  25 auxMessage(
  26     DWORD DeviceId,
  27     DWORD Message,
  28     DWORD PrivateHandle,
  29     DWORD Parameter1,
  30     DWORD Parameter2)
  31 {
  32     MMRESULT Result = MMSYSERR_NOTSUPPORTED;
  33
  34     AcquireEntrypointMutex(AUX_DEVICE_TYPE);
  35
  36     SND_TRACE(L"auxMessage - Message type %d\n", Message);
  37
  38     switch ( Message )
  39     {
  40         case AUXDM_GETNUMDEVS :
  41         {
  42             Result = GetSoundDeviceCount(AUX_DEVICE_TYPE);
  43             break;
  44         }
  45
  46         case AUXDM_GETDEVCAPS :
  47         {
  48             Result = MmeGetSoundDeviceCapabilities(AUX_DEVICE_TYPE,
  49                                                    DeviceId,
  50                                                    (PVOID) Parameter1,
  51                                                    Parameter2);
  52             break;
  53         }
  54     }
  55
  56     SND_TRACE(L"auxMessage returning MMRESULT %d\n", Result);
  57
  58     ReleaseEntrypointMutex(AUX_DEVICE_TYPE);
  59
  60     return Result;
  61 }