691 lines
17 KiB
NASM
691 lines
17 KiB
NASM
;****************************************************************************
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;** **
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;** **
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;** **
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;** **
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;** **
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;** **
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;** **
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;** **
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;****************************************************************************
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.386
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.xlist
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include vmm.inc
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include vtd.inc
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include debug.inc
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; include mmdevldr.inc
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include vwin32.inc
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include pagefile.inc
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include vmcpd.inc
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; include shell.inc
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; include debugsys.inc
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.list
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Create_DSOUND_Service_Table equ 1
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include dsdriver.inc
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OPTION SCOPED
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;****************************************************************************
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;** **
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;** VxD declaration **
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;** **
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;****************************************************************************
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DSOUND_VERSION_MAJOR equ 4 ; Version 4.02
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DSOUND_VERSION_MINOR equ 2 ;
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Declare_Virtual_Device DSOUND, \
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DSOUND_VERSION_MAJOR, DSOUND_VERSION_MINOR, \
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DSOUND_Control, \
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DSOUND_Device_ID, \
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UNDEFINED_INIT_ORDER, \
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DSOUND_API_Handler, \
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DSOUND_API_Handler
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;****************************************************************************
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;** **
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;** Macro, equate, and type declarations **
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;** **
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;****************************************************************************
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LONG_MAX equ 7fffffffh ;Maximum 32-bit signed value
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RESAMPLING_TOLERANCE equ 0 ;E.g., 655=1% resampling tolerance
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;****************************************************************************
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;** **
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;** Locked data **
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;** **
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;****************************************************************************
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VxD_LOCKED_DATA_SEG
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;****************************************************************************
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;** **
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;** Primitive vectors generated at beginning of data segment **
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;** **
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;** 1st 32 entries: MAKE_DC procedures for AILSSA_DMA_copy() **
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;** 2nd 128 entries: MAKE_MERGE procedures for AILSSA_merge() **
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;** **
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;****************************************************************************
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;
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;First device code is duplicated since IOCTL calls with
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;function 0 always fail in Win95 for some reason
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;
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;---
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;
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; Read the documentation, silly. Function 0 is DIOC_OPEN.
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; It is the VxD version of PROCESS_ATTACH.
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DSVXD_IOCTL_Table LABEL DWORD
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dd OFFSET32 _ioctlDsvxdGetVersion
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dd OFFSET32 _ioctlDsvxdInitialize
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dd OFFSET32 _ioctlDsvxdShutdown
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dd OFFSET32 _ioctlDrvGetNextDescFromGuid
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dd OFFSET32 _ioctlDrvGetDescFromGuid
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dd OFFSET32 _ioctlIDsDriver_QueryInterface
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dd OFFSET32 _ioctlDrvOpenFromGuid
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dd OFFSET32 _ioctlIDsDriver_Close
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dd OFFSET32 _ioctlIDsDriver_GetCaps
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dd OFFSET32 _ioctlIDsDriver_CreateSoundBuffer
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dd OFFSET32 _ioctlIDsDriver_DuplicateSoundBuffer
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dd OFFSET32 _ioctlBufferRelease
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dd OFFSET32 _ioctlBufferLock
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dd OFFSET32 _ioctlBufferUnlock
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dd OFFSET32 _ioctlBufferSetFormat
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dd OFFSET32 _ioctlBufferSetFrequency
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dd OFFSET32 _ioctlBufferSetVolumePan
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dd OFFSET32 _ioctlBufferSetPosition
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dd OFFSET32 _ioctlBufferGetPosition
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dd OFFSET32 _ioctlBufferPlay
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dd OFFSET32 _ioctlBufferStop
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dd OFFSET32 _ioctlEventScheduleWin32Event
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dd OFFSET32 _ioctlEventCloseVxDHandle
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dd OFFSET32 _ioctlMemReserveAlias
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dd OFFSET32 _ioctlMemCommitAlias
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dd OFFSET32 _ioctlMemRedirectAlias
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dd OFFSET32 _ioctlMemDecommitAlias
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dd OFFSET32 _ioctlMemFreeAlias
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dd OFFSET32 _ioctlMemPageLock
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dd OFFSET32 _ioctlMemPageUnlock
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dd OFFSET32 _ioctlDsvxd_PageFile_Get_Version
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dd OFFSET32 _ioctlDsvxd_VMM_Test_Debug_Installed
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dd OFFSET32 _ioctlDsvxd_VMCPD_Get_Version
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dd OFFSET32 _ioctlDsvxd_GetMixerMutexPtr
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dd OFFSET32 _ioctlMixer_Run
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dd OFFSET32 _ioctlMixer_Stop
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dd OFFSET32 _ioctlMixer_PlayWhenIdle
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dd OFFSET32 _ioctlMixer_StopWhenIdle
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dd OFFSET32 _ioctlMixer_MixListAdd
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dd OFFSET32 _ioctlMixer_MixListRemove
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dd OFFSET32 _ioctlMixer_FilterOn
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dd OFFSET32 _ioctlMixer_FilterOff
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dd OFFSET32 _ioctlMixer_GetBytePosition
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dd OFFSET32 _ioctlMixer_SignalRemix
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dd OFFSET32 _ioctlKeDest_New
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dd OFFSET32 _ioctlMixDest_Delete
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dd OFFSET32 _ioctlMixDest_Initialize
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dd OFFSET32 _ioctlMixDest_Terminate
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dd OFFSET32 _ioctlMixDest_SetFormat
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dd OFFSET32 _ioctlMixDest_SetFormatInfo
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dd OFFSET32 _ioctlMixDest_AllocMixer
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dd OFFSET32 _ioctlMixDest_FreeMixer
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dd OFFSET32 _ioctlMixDest_Play
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dd OFFSET32 _ioctlMixDest_Stop
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dd OFFSET32 _ioctlMixDest_GetFrequency
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dd OFFSET32 _ioctlMemCommitPhysAlias
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dd OFFSET32 _ioctlMemRedirectPhysAlias
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dd OFFSET32 _ioctlIUnknown_QueryInterface
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dd OFFSET32 _ioctlIUnknown_AddRef
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dd OFFSET32 _ioctlIUnknown_Release
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dd OFFSET32 _ioctlIDirectSoundPropertySet_GetProperty
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dd OFFSET32 _ioctlIDirectSoundPropertySet_SetProperty
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dd OFFSET32 _ioctlIDirectSoundPropertySet_QuerySupport
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dd OFFSET32 _ioctlGetInternalVersionNumber
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DSOUND_N_IOCTLS EQU ($-DSVXD_IOCTL_Table) / SIZE DWORD
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;
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;Pointer to input/output parms
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;
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IOCTL_parms dd ?
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VxD_LOCKED_DATA_ENDS
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;****************************************************************************
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;** **
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;** Locked code **
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;** **
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;****************************************************************************
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VxD_LOCKED_CODE_SEG
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extrn _ioctlDsvxdInitialize:NEAR
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extrn _ioctlDsvxdShutdown:NEAR
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extrn _ioctlDrvGetNextDescFromGuid:NEAR
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extrn _ioctlDrvGetDescFromGuid:NEAR
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extrn _ioctlDrvOpenFromGuid:NEAR
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extrn _ioctlIDsDriver_QueryInterface:NEAR
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extrn _ioctlIDsDriver_Close:NEAR
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extrn _ioctlIDsDriver_GetCaps:NEAR
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extrn _ioctlIDsDriver_CreateSoundBuffer:NEAR
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extrn _ioctlIDsDriver_DuplicateSoundBuffer:NEAR
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extrn _ioctlBufferRelease:NEAR
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extrn _ioctlBufferLock:NEAR
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extrn _ioctlBufferUnlock:NEAR
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extrn _ioctlBufferSetFormat:NEAR
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extrn _ioctlBufferSetFrequency:NEAR
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extrn _ioctlBufferSetVolumePan:NEAR
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extrn _ioctlBufferSetPosition:NEAR
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extrn _ioctlBufferGetPosition:NEAR
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extrn _ioctlBufferPlay:NEAR
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extrn _ioctlBufferStop:NEAR
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extrn _ioctlEventScheduleWin32Event:NEAR
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extrn _ioctlEventCloseVxDHandle:NEAR
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extrn _ioctlMemReserveAlias:NEAR
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extrn _ioctlMemCommitAlias:NEAR
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extrn _ioctlMemRedirectAlias:NEAR
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extrn _ioctlMemDecommitAlias:NEAR
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extrn _ioctlMemFreeAlias:NEAR
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extrn _ioctlMemPageLock:NEAR
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extrn _ioctlMemPageUnlock:NEAR
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extrn _ioctlDsvxd_PageFile_Get_Version:NEAR
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extrn _ioctlDsvxd_VMM_Test_Debug_Installed:NEAR
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extrn _ioctlDsvxd_VMCPD_Get_Version:NEAR
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extrn _ioctlDsvxd_GetMixerMutexPtr:NEAR
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extrn _ioctlMixer_Run:NEAR
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extrn _ioctlMixer_Stop:NEAR
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extrn _ioctlMixer_PlayWhenIdle:NEAR
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extrn _ioctlMixer_StopWhenIdle:NEAR
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extrn _ioctlMixer_MixListAdd:NEAR
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extrn _ioctlMixer_MixListRemove:NEAR
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extrn _ioctlMixer_FilterOn:NEAR
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extrn _ioctlMixer_FilterOff:NEAR
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extrn _ioctlMixer_GetBytePosition:NEAR
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extrn _ioctlMixer_SignalRemix:NEAR
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extrn _ioctlKeDest_New:NEAR
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extrn _ioctlMixDest_Delete:NEAR
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extrn _ioctlMixDest_Initialize:NEAR
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extrn _ioctlMixDest_Terminate:NEAR
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extrn _ioctlMixDest_SetFormat:NEAR
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extrn _ioctlMixDest_SetFormatInfo:NEAR
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extrn _ioctlMixDest_AllocMixer:NEAR
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extrn _ioctlMixDest_FreeMixer:NEAR
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extrn _ioctlMixDest_Play:NEAR
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extrn _ioctlMixDest_Stop:NEAR
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extrn _ioctlMixDest_GetFrequency:NEAR
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extrn _ioctlMemCommitPhysAlias:NEAR
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extrn _ioctlMemRedirectPhysAlias:NEAR
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extrn _ioctlIUnknown_QueryInterface:NEAR
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extrn _ioctlIUnknown_AddRef:NEAR
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extrn _ioctlIUnknown_Release:NEAR
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extrn _ioctlIDirectSoundPropertySet_QuerySupport:NEAR
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extrn _ioctlIDirectSoundPropertySet_SetProperty:NEAR
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extrn _ioctlIDirectSoundPropertySet_GetProperty:NEAR
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extrn _ioctlGetInternalVersionNumber:NEAR
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;****************************************************************************
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;** **
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;** IOCTL dispatcher for VxD **
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;** **
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;** Dispatch control messages to the correct handlers. Must be in **
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;** locked code segment. (All VxD segments are locked in 3.0/3.1) **
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;** **
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;** ENTRY: **
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;** **
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;** EXIT: **
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;** Carry clear success; Carry Set if fail. **
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;** **
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;****************************************************************************
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BeginProc DSOUND_Control
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Control_Dispatch Sys_Dynamic_Device_Init, ctrlDynamicDeviceInitA
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Control_Dispatch Sys_Dynamic_Device_Exit, ctrlDynamicDeviceExitA
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Control_Dispatch W32_DEVICEIOCONTROL, ctrlDeviceIOControl
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; Trace_Out "DSOUND_Control "
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clc
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ret
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EndProc DSOUND_Control
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;****************************************************************************
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;** **
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;** API dispatcher for VxD **
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;** **
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;** Dispatch control messages to the correct handlers. **
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;** **
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;** ENTRY: **
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;** **
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;** EXIT: **
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;** Carry clear success; Carry Set if fail. **
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;** **
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;****************************************************************************
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BeginProc DSOUND_API_Handler
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Trace_Out "DSOUND_API_Handler "
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clc
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ret
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EndProc DSOUND_API_Handler
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;---------------------------------------------------------------------------;
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;
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; ctrlDynamicDeviceInit and Exit
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;
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;---------------------------------------------------------------------------;
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BeginProc ctrlDynamicDeviceInitA
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Ccall _ctrlDynamicDeviceInit
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sub eax, 1
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ret
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EndProc ctrlDynamicDeviceInitA
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BeginProc ctrlDynamicDeviceExitA
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Ccall _ctrlDynamicDeviceExit
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sub eax, 1
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ret
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EndProc ctrlDynamicDeviceExitA
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;------------------------------------------------------------------------------
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; FUNC DSOUND_GetVersion - Locked Code
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;
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; ENTRY
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; None
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;
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; EXIT
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; AH = Major version number
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; AL = Minor version number
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; Carry flag clear
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;
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; USES
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; EAX, Flags
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;
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;------------------------------------------------------------------------------
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BeginProc _DSOUND_GetVersion, SERVICE
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mov eax, DSOUND_VERSION_MAJOR * 100h + DSOUND_VERSION_MINOR
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clc
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ret
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EndProc _DSOUND_GetVersion
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;****************************************************************************
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;** **
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;** ctrlDeviceIOControl **
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;** **
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;** DESCRIPTION: This function is called to perform Device IO **
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;** for a 32 bit process which has opened this device with **
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;** <f CreateFile>, and is performing IO using **
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;** <f DeviceIOControl>. Preserves the C32 calling registers **
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;** ESI, EDI, and EBX. **
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;** **
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;** ENTRY: EBX DDB **
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;** ECX dwIoControlCode **
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;** ESI ptr to DIOCParams **
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;** **
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;** EXIT: As determined by function, or 1 if invalid IOCTL **
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;** **
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;** ----- **
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;** **
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;** Note: Function 0 is documented in vmm.h **
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;** as DIOC_OPEN. It is your VxD's PROCESS_ATTACH call. **
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;** **
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;****************************************************************************
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BeginProc ctrlDeviceIOControl
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cmp ecx, DSOUND_N_IOCTLS
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jae cDIOC_InvalidCode
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push edi
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push esi
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push ebx
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mov IOCTL_parms,esi
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push esi
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call DSVXD_IOCTL_Table[ecx*4]
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add esp, 4
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pop ebx
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pop esi
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pop edi
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ret
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cDIOC_InvalidCode:
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IFDEF DEBUG
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cmp ecx, DIOC_CLOSEHANDLE
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Debug_OutNZ "DSVXD: Invalid dwIoControlCode #ECX"
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ENDIF
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mov eax, 1 ; ERROR_INVALID_FUNCTION
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ret
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EndProc ctrlDeviceIOControl
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;****************************************************************************
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;** **
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;** _ioctlDsvxdGetVersion **
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;** **
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;** DESCRIPTION: Get the version of DSVXD **
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;** **
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;** ENTRY: **
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;** **
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;** EXIT: **
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;** **
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;****************************************************************************
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BeginProc _ioctlDsvxdGetVersion
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Trace_Out "DSVXD: ioctlDsvxdGetVersion"
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xor eax, eax
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mov ecx, DSOUND_VERSION_MAJOR * 100h + DSOUND_VERSION_MINOR
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ret
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EndProc _ioctlDsvxdGetVersion
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;****************************************************************************
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;** **
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;** **
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;** **
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;****************************************************************************
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;--------------------------------------------------------------------------;
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;
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; _Dsvxd_VMM_Test_Debug_Installed
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;
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; Out:
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;
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; Notes:
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;
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;--------------------------------------------------------------------------;
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BeginProc _Dsvxd_VMM_Test_Debug_Installed
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EnterProc
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VMMcall Test_Debug_Installed
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mov eax, 0
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jz @F
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inc eax
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@@:
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LeaveProc
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Return
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EndProc _Dsvxd_VMM_Test_Debug_Installed
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;--------------------------------------------------------------------------;
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;
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; _Dsvxd_PageFile_Get_Version
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;
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; Out:
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;
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; Notes:
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;
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;--------------------------------------------------------------------------;
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BeginProc _Dsvxd_PageFile_Get_Version
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ArgVar p_version, DWORD
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ArgVar p_maxsize, DWORD
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ArgVar p_pager_type, DWORD
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EnterProc
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pushad
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VxDcall PageFile_Get_Version
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mov edi, p_version
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mov [edi], eax
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mov edi, p_maxsize
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mov [edi], ecx
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xor eax, eax
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mov al, bl
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mov edi, p_pager_type
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mov [edi], eax
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popad
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LeaveProc
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Return
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EndProc _Dsvxd_PageFile_Get_Version
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;--------------------------------------------------------------------------;
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;
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; _Dsvxd_VMCPD_Get_Version
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;
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; Out:
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;
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; Notes:
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;
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;--------------------------------------------------------------------------;
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BeginProc _Dsvxd_VMCPD_Get_Version
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ArgVar pMajorVersion, DWORD
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ArgVar pMinorVersion, DWORD
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ArgVar pLevel, DWORD
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EnterProc
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pushad
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VxDcall VMCPD_Get_Version
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xor ebx, ebx
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mov edi, pMajorVersion
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mov bl, ah
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mov [edi], ebx
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mov bl, al
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mov edi, pMinorVersion
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mov [edi], ebx
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mov edi, pLevel
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mov [edi], ecx
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popad
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LeaveProc
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Return
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EndProc _Dsvxd_VMCPD_Get_Version
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;--------------------------------------------------------------------------;
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;
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; _KeGrace_GlobalTimeOutProcAsm
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;
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; This is the entry point for the global time out set by the
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; KeGrace object. This is just an ASM thunk to KeGrace_GlobalTimeOutProc
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; "C" function.
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;
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; This function is called from the VMM as follows:
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;
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; mov ebx, VMHandle ; current VM handle
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; mov ecx, Tardiness ; number of milliseconds since time-out
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; mov edx, RefData ; reference data
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; mov ebp, OFFSET32 crs ; points to Client_Reg_Struc
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; call [TimeOutCallback]
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;
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; Out:
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;
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; Notes:
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;
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;--------------------------------------------------------------------------;
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extrn _KeGrace_GlobalTimeOutProc:NEAR
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BeginProc _KeGrace_GlobalTimeOutProcAsm
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; The reference data is a pointer to and EVENTPARAMS structure whose
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; first member is the event handle and second member is the "this" pointer
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; to the KeGrace object
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xor eax, eax
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xchg [edx], eax ; Clear the event handle
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Debug_OutEAXz "DSVXD: executing KeGrace_GlobalTimeOutProcAsm after cancelled!"
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or eax, eax
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jz @F
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pushad
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push ecx ; Pass tardiness
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push [edx + 4] ; Pass "this" to the "C" function
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Ccall _KeGrace_GlobalTimeOutProc
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add esp, 8
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popad
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@@:
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ret
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EndProc _KeGrace_GlobalTimeOutProcAsm
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;--------------------------------------------------------------------------;
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;
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; _VMEvent_SetWin32Event
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;
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; This is a VM EventCallback scheduled by _AsyncTimeOut_SetWin32Event.
|
|
; This calls VWin32 to set a Win32 event.
|
|
;
|
|
; In:
|
|
; ebx = vm handle
|
|
; edi = thread handle
|
|
; edx = refdata = vxd handle to win32 event
|
|
; ebp = offset32 client reg struc
|
|
;
|
|
; Out:
|
|
;
|
|
; Notes:
|
|
; See _eventScheduleWin32Event
|
|
;
|
|
;--------------------------------------------------------------------------;
|
|
|
|
BeginProc _VMEvent_SetWin32Event
|
|
|
|
mov eax, edx
|
|
VxDcall _VWIN32_SetWin32Event
|
|
|
|
ret
|
|
|
|
EndProc _VMEvent_SetWin32Event
|
|
|
|
;--------------------------------------------------------------------------;
|
|
;
|
|
; _AsyncTimeOut_SetWin32Event
|
|
;
|
|
; This is an async timeout callback set by _Set_SetWin32Event_TimeOut.
|
|
; This schedules _VMEvent_SetWin32Event as a sys vm event callback.
|
|
;
|
|
; In:
|
|
; ecx = tardiness
|
|
; edx = reference data = vxd handle to win32 event
|
|
;
|
|
; Out:
|
|
;
|
|
; Notes:
|
|
; See _eventScheduleWin32Event
|
|
;
|
|
;--------------------------------------------------------------------------;
|
|
|
|
BeginProc _AsyncTimeOut_SetWin32Event
|
|
|
|
push ebx
|
|
push esi
|
|
|
|
VMMcall Get_Sys_VM_Handle
|
|
mov esi, _VMEvent_SetWin32Event
|
|
VMMcall Schedule_VM_Event
|
|
|
|
pop esi
|
|
pop ebx
|
|
ret
|
|
|
|
EndProc _AsyncTimeOut_SetWin32Event
|
|
|
|
|
|
;--------------------------------------------------------------------------;
|
|
;
|
|
; _EventScheduleWin32Event
|
|
;
|
|
; This signals a win32 event after a specified delay.
|
|
;
|
|
; In:
|
|
; vxdhEvent - vxd handle to win32 event
|
|
; dwDelay - milliseconds delay
|
|
;
|
|
; Out(int):
|
|
; 0 if failure, non-0 otherwise
|
|
;
|
|
; Notes:
|
|
; Use 'C' calling convention. Sets an async timeout which in
|
|
; turn schedules a vm event to actually signal the win32 event.
|
|
;
|
|
;--------------------------------------------------------------------------;
|
|
|
|
BeginProc _eventScheduleWin32Event
|
|
|
|
ArgVar vxdhEvent,DWORD
|
|
ArgVar dwDelay,DWORD
|
|
|
|
EnterProc
|
|
push ebx
|
|
push esi
|
|
|
|
mov eax, dwDelay
|
|
|
|
test eax, eax
|
|
jnz _ESW32E_delayed
|
|
|
|
VMMcall Get_Sys_VM_Handle
|
|
mov esi, _VMEvent_SetWin32Event
|
|
mov edx, vxdhEvent
|
|
Vmmcall Call_VM_Event
|
|
mov eax, -1
|
|
|
|
jmp _ESW32E_exit
|
|
|
|
_ESW32E_delayed:
|
|
Debug_Out "DSVXD: Tried to set a defered win32 event???"
|
|
mov edx, vxdhEvent
|
|
mov esi, _AsyncTimeOut_SetWin32Event
|
|
VMMcall Set_Async_Time_Out
|
|
mov eax, esi
|
|
|
|
_ESW32E_exit:
|
|
pop esi
|
|
pop ebx
|
|
LeaveProc
|
|
Return
|
|
|
|
EndProc _eventScheduleWin32Event
|
|
|
|
VXD_LOCKED_CODE_ENDS
|
|
END
|