90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
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/*++ BUILD Version: 0001 // Increment this if a change has global effects
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Copyright (c) 1991 Microsoft Corporation
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Copyright (c) 1992, 1993 Digital Equipment Corporation
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Module Name:
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halisa.h
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Abstract:
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This header file defines the private Hardware Architecture Layer (HAL)
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EISA/ISA specific interfaces, defines and structures.
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Author:
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Jeff Havens (jhavens) 20-Jun-91
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Jeff McLeman (mcleman) 01-Jun-1992
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Revision History:
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17-Jul-1992 Jeff McLeman (mcleman)
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Remove adapter object structure from here.
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01-Jun-1992 Jeff McLeman
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modify for Jensen EISA/ISA
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--*/
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#ifndef _HALISA_
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#define _HALISA_
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//
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// The MAXIMUM_MAP_BUFFER_SIZE defines the maximum map buffers which the system
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// will allocate for devices which require phyically contigous buffers.
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//
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#define MAXIMUM_MAP_BUFFER_SIZE 0x40000
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//
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// Define the initial buffer allocation size for a map buffers for systems with
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// no memory which has a physical address greater than MAXIMUM_PHYSICAL_ADDRESS.
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//
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#define INITIAL_MAP_BUFFER_SMALL_SIZE 0x10000
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//
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// Define the initial buffer allocation size for a map buffers for systems with
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// no memory which has a physical address greater than MAXIMUM_PHYSICAL_ADDRESS.
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//
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#define INITIAL_MAP_BUFFER_LARGE_SIZE 0x30000
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//
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// Define the incremental buffer allocation for a map buffers.
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//
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#define INCREMENT_MAP_BUFFER_SIZE 0x10000
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//
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// Define the maximum number of map registers that can be requested at one time
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// if actual map registers are required for the transfer.
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//
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#define __64K (0x10000)
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#define MAXIMUM_ISA_MAP_REGISTER (__64K >> PAGE_SHIFT)
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//
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// Define the maximum physical address which can be handled by an Isa card.
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//
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#define __16MB (0x1000000)
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#define MAXIMUM_ISA_PHYSICAL_ADDRESS (__16MB)
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//
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// Define the scatter/gather flag for the Map Register Base.
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//
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#define NO_SCATTER_GATHER 0x00000001
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//
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// Define the copy buffer flag for the index.
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//
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#define COPY_BUFFER 0XFFFFFFFF
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#endif // _HALISA_
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