;******************************************************************************
;
; (C) Copyright MICROSOFT Corp. 1986-1990
;
; Title: VDMAD.INC - includes for Virtual DMA driver
;
; Version: 2.00
;
; Date: 28-Nov-1988
;
; Author: RAP
;
;******************************************************************************
;
; Change log:
;
; DATE REVISION DESCRIPTION
; -------- -------- -------------------------------------------------------
; 12/16/86 Original
;
; 28-Nov-1988 RAP v 2.0
;
;==============================================================================
IFNDEF Not_VxD
Begin_Service_Table VDMAD
VDMAD_Service VDMAD_Get_Version, LOCAL
VDMAD_Service VDMAD_Virtualize_Channel, LOCAL
VDMAD_Service VDMAD_Get_Region_Info, LOCAL
VDMAD_Service VDMAD_Set_Region_Info, LOCAL
VDMAD_Service VDMAD_Get_Virt_State, LOCAL
VDMAD_Service VDMAD_Set_Virt_State, LOCAL
VDMAD_Service VDMAD_Set_Phys_State, LOCAL
VDMAD_Service VDMAD_Mask_Channel, LOCAL
VDMAD_Service VDMAD_UnMask_Channel, LOCAL
VDMAD_Service VDMAD_Lock_DMA_Region, LOCAL
VDMAD_Service VDMAD_Unlock_DMA_Region, LOCAL
VDMAD_Service VDMAD_Scatter_Lock, LOCAL
VDMAD_Service VDMAD_Scatter_Unlock, LOCAL
VDMAD_Service VDMAD_Reserve_Buffer_Space, LOCAL
VDMAD_Service VDMAD_Request_Buffer, LOCAL
VDMAD_Service VDMAD_Release_Buffer, LOCAL
VDMAD_Service VDMAD_Copy_To_Buffer, LOCAL
VDMAD_Service VDMAD_Copy_From_Buffer, LOCAL
VDMAD_Service VDMAD_Default_Handler, LOCAL
VDMAD_Service VDMAD_Disable_Translation, LOCAL
VDMAD_Service VDMAD_Enable_Translation, LOCAL
VDMAD_Service VDMAD_Get_EISA_Adr_Mode, LOCAL
VDMAD_Service VDMAD_Set_EISA_Adr_Mode, LOCAL
VDMAD_Service VDMAD_Unlock_DMA_Region_No_Dirty, LOCAL
End_Service_Table VDMAD
Function_Mask equ 0F0h
Channel_Mask equ 07h
;
; mode bits
;
DMA_type_verify equ 00000000b
DMA_type_write equ 00000100b
DMA_type_read equ 00001000b
DMA_AutoInit equ 00010000b
DMA_AdrDec equ 00100000b
DMA_demand_mode equ 00000000b
DMA_single_mode equ 01000000b
DMA_block_mode equ 10000000b
DMA_cascade equ 11000000b
DMA_mode_mask equ 11000000b ; mask to isolate controller mode bits (above)
DMA_chan_sel equ 00000011b
; state flag bits (overlay the unused channel selection bits)
DMA_masked equ 00000001b
DMA_masked_bit equ 0
DMA_requested equ 00000010b
DMA_req_bit equ 1
; extended mode bits
Programmed_IO equ 00000001b
Transfer_Data equ 00000100b
Write_Mem equ 00001000b
_16_bit_xfer equ 01000000b
_16_bit_xfer_bit equ 6
ENDIF
DMA_Descriptor_Struc STRUC
DDS_size dd ?
DDS_linear dd ?
DDS_seg dw ?
DDS_bufferID dw ?
DDS_physical dd ?
DMA_Descriptor_Struc ENDS
DDS_sel equ word ptr [DDS_seg]
Extended_DDS_Struc STRUC
dd ? ; DDS_size
dd ? ; DDS_linear
dw ? ; DDS_seg
dw ? ; reserved
DDS_avail dw ?
DDS_used dw ?
Extended_DDS_Struc ENDS
DMA_Buf_Copy equ 0000000000000010b ; set in copy into/out of buffer
DMA_Buf_Copy_bit equ 1 ; required in lock or unlock
DMA_No_Alloc_Buf equ 0000000000000100b ; set if buffer should not be
DMA_No_Alloc_Buf_bit equ 2 ; alloc'ed if lock not possible
DMA_Align_64K equ 0000000000010000b ; set if lock must not cross
DMA_Align_64K_bit equ 4 ; 64k page boundary
DMA_Align_128K equ 0000000000100000b ; set if lock must not cross
DMA_Align_128K_bit equ 5 ; 128k page boundary
DMA_Get_PgTable equ 0000000001000000b ; set if page table copy for
DMA_Get_PgTable_bit equ 6 ; scatter/gather lock
DMA_Allow_NPs equ 0000000010000000b ; set if not present pages are
DMA_Allow_NPs_bit equ 7 ; allowed in scatter/gather lock
; when bit 6 also set
DMA_Not_Contiguous equ 01h
DMA_Not_Aligned equ 02h
DMA_Lock_Failed equ 03h
DMA_No_Buffer equ 04h
DMA_Buffer_Too_Small equ 05h
DMA_Buffer_In_Use equ 06h
DMA_Invalid_Region equ 07h
DMA_Region_Not_Locked equ 08h
DMA_Table_Too_Small equ 09h
DMA_Invalid_Buffer equ 0Ah
DMA_Copy_Out_Range equ 0Bh
DMA_Invalid_Channel equ 0Ch
DMA_Disable_Cnt_Overflow equ 0Dh
DMA_Disable_Cnt_Underflow equ 0Eh
DMA_Func_Not_Supported equ 0Fh
DMA_NonZero_Reserved_Flags equ 10h
;
; Flags definitions for VDMAD_Scatter_Lock and VDMAD_Scatter_Unlock
;
DMA_SL_Get_PgTable equ 0000000000000001b ; set if page table copy for
DMA_SL_Get_PgTable_bit equ 0 ; scatter/gather lock
DMA_SL_Allow_NPs equ 0000000000000010b ; set if not present pages are
DMA_SL_Allow_NPs_bit equ 1 ; allowed in scatter/gather lock
; when bit 0 also set
DMA_SL_Dont_Dirty equ 0000000000000100b ; set if pages should NOT be
DMA_SL_Dont_Dirty_bit equ 2 ; marked as dirty for
; VDMAD_Scatter_Unlock
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