;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; vadlibd.inc
;
; Copyright (c) 1991-1992 Microsoft Corporation. All Rights Reserved.
;
; Description:
; This VxD handles contention for the AdLib Synth 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.
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; The following equates can either be used by pmode apps, rmode apps,
; or VxD's.
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
Multimedia_OEM_ID equ 0440h ; MS Reserved OEM # 34
VADLIBD_Device_ID equ Multimedia_OEM_ID + 6
VADLIBD_Ver_Major equ 1 ; version 1.0 of this VxD
VADLIBD_Ver_Minor equ 0
;
; AdLib related equates
;
VADLIBD_Max_Synths equ 4 ; currently only 4 at once
;
; AdLib default base and IRQ
;
VADLIBD_DEFAULT_BASE equ 388h ; normal default port
;
; PMode and RMode API indexes
;
ADLIB_API_Get_Version equ 0 ; get version info on VADLIBD
ADLIB_API_Acquire_Synth equ 1
ADLIB_API_Release_Synth equ 2
ADLIB_API_Get_Synth_Array equ 3
;
; Error returns for ADLIB_API_Acquire_Synth (returned in Client_AX)
; VADLIBD_Acquire_Synth returns these error codes also...
;
ADLIB_AS_Err_Bad_Synth equ 01h
ADLIB_AS_Err_Already_Owned equ 02h
;
; Error returns for ADLIB_API_Release_Synth (returned in Client_AX)
; VADLIBD_Release_Synth returns these error codes also...
;
ADLIB_RS_Err_Bad_Synth equ 01h
ADLIB_RS_Err_Not_Yours equ 02h
;
; Error returns for ADLIB_Install_Handler (returned in Client_AX)
;
ADLIB_IH_Err_Bad_Synth equ 01h
ADLIB_IH_Err_Already_Owned equ 02h
ADLIB_IH_Err_Wrong_Phase equ 03h
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; 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 VADLIBD *MUST* be before any VxD that uses it.
;
VADLIBD_Init_Order equ WINLOAD_Init_Order
;
; Flags for VADLIBD_Virtualize_Synth VxD service (EBX)
;
fADLIB_VS_Install_Handler equ 0000000000000001b
;
; Error returns in EAX for VADLIBD_Virtualize_Synth VxD service
;
ADLIB_VS_Err_No_Error equ 00h
ADLIB_VS_Err_Already_Virtualized equ 01h
ADLIB_VS_Err_No_Available_Slots equ 03h
ADLIB_VS_Err_Memory_Alloc_Failed equ 04h
ADLIB_VS_Err_Ports_Hooked equ 05h
;
; Global state data
;
ADLIB_STRUC STRUC
wAdLibBasePort dw ? ; base port address for synth
wAdLibFlags dw 0 ; flags for trapping, etc.
dwAdLibOwner dd 0 ; VM handle owning this AdLib Synth
dwAdLibHandler dd ? ; pointer to custom handler
rgdwAdLibReserved2 dd 2 DUP(?); reserved
ADLIB_STRUC ENDS
;
; VxD service table
;
Begin_Service_Table VADLIBD
VADLIBD_Service VADLIBD_Get_Version, LOCAL
VADLIBD_Service VADLIBD_Virtualize_Synth, LOCAL
VADLIBD_Service VADLIBD_Get_Synth_Focus, LOCAL
VADLIBD_Service VADLIBD_Acquire_Synth, LOCAL
VADLIBD_Service VADLIBD_Release_Synth, LOCAL
VADLIBD_Service VADLIBD_Install_Handler, LOCAL
End_Service_Table VADLIBD
endif ; DDB_Sys_Crit_Init_Done (VxD's only)
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