91 lines
1.6 KiB
C
91 lines
1.6 KiB
C
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/*++
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Copyright (c) 1990, 1991 Microsoft Corporation
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Module Name:
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hwheap.c
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Abstract:
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This is the Mca hardware detection module. Its main function is
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to detect various mca related hardware.
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Author:
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Shie-Lin Tzong (shielint) 21-Jan-92
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Environment:
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Real mode.
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Revision History:
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--*/
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#include "hwdetect.h"
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//
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// Define the size of POS data = ( slot 0 - 8 + VideoSubsystem) * (2 id bytes + 4 POS bytes)
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//
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#define POS_DATA_SIZE (10 * 6)
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#if !defined(_GAMBIT_)
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extern
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VOID
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CollectPs2PosData (
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FPVOID Buffer
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);
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#endif // _GAMBIT_
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VOID
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GetMcaPosData(
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FPVOID Buffer,
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FPULONG Size
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)
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/*++
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Routine Description:
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This routine collects all the mca slot POS and Id information
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and stores it in the caller supplied Buffer and
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returns the size of the data.
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Arguments:
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Buffer - A pointer to a PVOID to recieve the address of configuration
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data.
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Size - a pointer to a ULONG to receive the size of the configuration
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data.
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Return Value:
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None.
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--*/
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{
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FPUCHAR ConfigurationData;
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ULONG Length;
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Length = POS_DATA_SIZE + DATA_HEADER_SIZE;
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ConfigurationData = (FPVOID)HwAllocateHeap(Length, FALSE);
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#if !defined(_GAMBIT_)
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CollectPs2PosData(ConfigurationData + DATA_HEADER_SIZE);
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#endif
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HwSetUpFreeFormDataHeader((FPHWRESOURCE_DESCRIPTOR_LIST)ConfigurationData,
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0,
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0,
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0,
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(ULONG)POS_DATA_SIZE
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);
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*(FPULONG)Buffer = PtrToUlong(ConfigurationData);
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*Size = Length;
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}
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