126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
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/****************************************************************************
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*
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* waveout.c
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*
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* WDM Audio support for Wave Output devices
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*
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* Copyright (C) Microsoft Corporation, 1997 - 1998 All Rights Reserved.
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*
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* History
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* 3-17-98 - Mike McLaughlin (mikem)
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*
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***************************************************************************/
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#include "wdmdrv.h"
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//--------------------------------------------------------------------------
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//
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// DWORD auxMessage
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//
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// Description:
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// This function conforms to the standard auxilary driver
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// message procedure.
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//
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// Parameters:
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// UINT uDevId
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//
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// WORD msg
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//
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// DWORD dwUser
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//
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// DWORD dwParam1
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//
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// DWORD dwParam2
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//
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// Return (DWORD):
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// Message specific
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//
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//@@BEGIN_MSINTERNAL
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// History: Date Author Comment
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// 5/20/93 BryanW Added this comment block.
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//@@END_MSINTERNAL
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//
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//--------------------------------------------------------------------------
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DWORD FAR PASCAL _loadds auxMessage
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(
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UINT uDevId,
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WORD msg,
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DWORD_PTR dwUser,
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DWORD_PTR dwParam1,
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DWORD_PTR dwParam2
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)
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{
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LPDEVICEINFO DeviceInfo;
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MMRESULT mmr;
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switch (msg) {
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case AUXM_INIT:
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DPF(DL_TRACE|FA_AUX, ("AUXDM_INIT") ) ;
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return(wdmaudAddRemoveDevNode(AuxDevice, (LPCWSTR)(ULONG_PTR)dwParam2, TRUE));
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case DRVM_EXIT:
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DPF(DL_TRACE|FA_AUX, ("AUXM_EXIT") ) ;
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return(wdmaudAddRemoveDevNode(AuxDevice, (LPCWSTR)(ULONG_PTR)dwParam2, FALSE));
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case AUXDM_GETNUMDEVS:
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DPF(DL_TRACE|FA_AUX, ("AUXDM_GETNUMDEVS") ) ;
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return wdmaudGetNumDevs(AuxDevice, (LPWSTR)(ULONG_PTR)dwParam1);
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case AUXDM_GETDEVCAPS:
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DPF(DL_TRACE|FA_AUX, ("AUXDM_GETDEVCAPS") ) ;
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if (DeviceInfo = GlobalAllocDeviceInfo((LPWSTR)(ULONG_PTR)dwParam2)) {
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DeviceInfo->DeviceType = AuxDevice;
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DeviceInfo->DeviceNumber = uDevId;
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mmr = wdmaudGetDevCaps(DeviceInfo, (MDEVICECAPSEX FAR*)(ULONG_PTR)dwParam1);
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GlobalFreeDeviceInfo(DeviceInfo);
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return mmr;
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} else {
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MMRRETURN( MMSYSERR_NOMEM );
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}
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case AUXDM_GETVOLUME:
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DPF(DL_TRACE|FA_AUX, ("AUXDM_GETVOLUME") ) ;
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if (DeviceInfo = GlobalAllocDeviceInfo((LPWSTR)(ULONG_PTR)dwParam2)) {
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DeviceInfo->DeviceType = AuxDevice;
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DeviceInfo->DeviceNumber = uDevId;
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PRESETERROR(DeviceInfo);
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mmr = wdmaudIoControl(DeviceInfo,
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sizeof(DWORD),
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(LPBYTE)(ULONG_PTR)dwParam1,
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IOCTL_WDMAUD_GET_VOLUME);
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POSTEXTRACTERROR(mmr,DeviceInfo);
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GlobalFreeDeviceInfo(DeviceInfo);
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MMRRETURN( mmr );
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} else {
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MMRRETURN( MMSYSERR_NOMEM );
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}
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case AUXDM_SETVOLUME:
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DPF(DL_TRACE|FA_AUX, ("AUXDM_SETVOLUME") ) ;
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if (DeviceInfo = GlobalAllocDeviceInfo((LPWSTR)(ULONG_PTR)dwParam2)) {
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DeviceInfo->DeviceType = AuxDevice;
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DeviceInfo->DeviceNumber = uDevId;
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PRESETERROR(DeviceInfo);
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mmr = wdmaudIoControl(DeviceInfo,
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sizeof(DWORD),
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(LPBYTE)&dwParam1,
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IOCTL_WDMAUD_SET_VOLUME);
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POSTEXTRACTERROR(mmr,DeviceInfo);
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GlobalFreeDeviceInfo(DeviceInfo);
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MMRRETURN( mmr );
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} else {
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MMRRETURN( MMSYSERR_NOMEM );
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}
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}
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MMRRETURN( MMSYSERR_NOTSUPPORTED );
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} // auxMessage()
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//---------------------------------------------------------------------------
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// End of File: auxd.c
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//---------------------------------------------------------------------------
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