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;
; vsbd.inc
;
; Copyright (c) 1991-1992 Microsoft Corporation. All rights reserved.
;
; Description:
; This VxD handles contention for a Sound Blaster card between VMs.
; Note this is NOT a full virtualizing driver.
;
; Notes:
; If you are including this file in a VxD, you MUST include VMM.INC
; first. It also makes calls into vadlibd.386, which was shipped
; with Windows 3.1.
;
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;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; The following equates can either be used by pmode apps, rmode apps,
; or VxD's.
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
Multimedia_OEM_ID equ 0440h ; MS Reserved OEM # 34
VSBD_Device_ID equ Multimedia_OEM_ID + 5
VSBD_Ver_Major equ 1 ; version 1.1 of this VxD
VSBD_Ver_Minor equ 1
;
; VSBD related equates
;
VSBD_Max_Sound_Blaster equ 1 ; currently only 1 at a time
;
; PMode and RMode API indexes
;
SB_API_Get_Version equ 0 ; get version info on VSBD
SB_API_Acquire_Sound_Blaster equ 1
SB_API_Release_Sound_Blaster equ 2
SB_API_Get_Sound_Blaster_Info equ 3
;
; Flags for acquire sound blaster
;
fSB_ASB_Acquire_AdLib_Synth equ 00000001b
fSB_ASB_Acquire_DSP equ 00000010b
fSB_ASB_Auto_Reset_DSP equ 00000100b
;
; Error returns for SB_API_Acquire_Sound_Blaster (returned in Client_AX)
;
SB_API_ASB_Err_Bad_SB equ 0001h
SB_API_ASB_Err_Already_Owned equ 0002h
SB_API_ASB_Err_State_Unknown equ 8000h
;
; Error returns for SB_API_Release_Sound_Blaster (returned in Client_AX)
;
SB_API_RSB_Err_Bad_SB equ 01h
SB_API_RSB_Err_Not_Yours equ 02h
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; The following equates are only useful in a VxD. DDB_Sys_Crit_Init_Done
; is defined by VMM.INC iff 'Not_Vxd' is NOT defined. In this way, if
; VMM.INC is included in a VxD before this include file, you will have
; access to this information.
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
ifdef DDB_Sys_Crit_Init_Done
;
; The init order for VSBD *MUST* be after VADLIBD.386
;
VSBD_Init_Order equ Undefined_Init_Order
;
; VxD service table
;
Begin_Service_Table VSBD
VSBD_Service VSBD_Get_Version, LOCAL
VSBD_Service VSBD_Get_Sound_Blaster_Focus, LOCAL
End_Service_Table VSBD
endif ; DDB_Sys_Crit_Init_Done (VxD's only)
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