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[HALX86] Stub-implement scatter/gather DMA operations

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These are required when we ask for a DMA_ADAPTER version 2.
This commit is contained in:
Hervé Poussineau 2021-11-01 13:00:06 +01:00
parent 3d78601f39
commit 88839d9726
1 changed files with 80 additions and 4 deletions
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84
hal/halx86/generic/dma.c
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@ -102,6 +102,39 @@ static const ULONG_PTR HalpEisaPortPage[8] = {
};
#ifndef _MINIHAL_
NTSTATUS
NTAPI
HalCalculateScatterGatherListSize(
IN PADAPTER_OBJECT AdapterObject,
IN PMDL Mdl OPTIONAL,
IN PVOID CurrentVa,
IN ULONG Length,
OUT PULONG ScatterGatherListSize,
OUT PULONG pNumberOfMapRegisters);
NTSTATUS
NTAPI
HalBuildScatterGatherList(
IN PADAPTER_OBJECT AdapterObject,
IN PDEVICE_OBJECT DeviceObject,
IN PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG Length,
IN PDRIVER_LIST_CONTROL ExecutionRoutine,
IN PVOID Context,
IN BOOLEAN WriteToDevice,
IN PVOID ScatterGatherBuffer,
IN ULONG ScatterGatherLength);
NTSTATUS
NTAPI
HalBuildMdlFromScatterGatherList(
IN PDMA_ADAPTER DmaAdapter,
IN PSCATTER_GATHER_LIST ScatterGather,
IN PMDL OriginalMdl,
OUT PMDL *TargetMdl);
static DMA_OPERATIONS HalpDmaOperations = {
sizeof(DMA_OPERATIONS),
(PPUT_DMA_ADAPTER)HalPutDmaAdapter,
@ -114,12 +147,11 @@ static DMA_OPERATIONS HalpDmaOperations = {
NULL, /* Initialized in HalpInitDma() */
(PGET_DMA_ALIGNMENT)HalpDmaGetDmaAlignment,
(PREAD_DMA_COUNTER)HalReadDmaCounter,
/* FIXME: Implement the S/G funtions. */
(PGET_SCATTER_GATHER_LIST)HalGetScatterGatherList,
(PPUT_SCATTER_GATHER_LIST)HalPutScatterGatherList,
NULL /*(PCALCULATE_SCATTER_GATHER_LIST_SIZE)HalCalculateScatterGatherListSize*/,
NULL /*(PBUILD_SCATTER_GATHER_LIST)HalBuildScatterGatherList*/,
NULL /*(PBUILD_MDL_FROM_SCATTER_GATHER_LIST)HalBuildMdlFromScatterGatherList*/
(PCALCULATE_SCATTER_GATHER_LIST_SIZE)HalCalculateScatterGatherListSize,
(PBUILD_SCATTER_GATHER_LIST)HalBuildScatterGatherList,
(PBUILD_MDL_FROM_SCATTER_GATHER_LIST)HalBuildMdlFromScatterGatherList
};
#endif
@ -1130,6 +1162,50 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
ExFreePoolWithTag(AdapterControlContext, TAG_DMA);
ExFreePoolWithTag(ScatterGather, TAG_DMA);
}
NTSTATUS
NTAPI
HalCalculateScatterGatherListSize(
IN PADAPTER_OBJECT AdapterObject,
IN PMDL Mdl OPTIONAL,
IN PVOID CurrentVa,
IN ULONG Length,
OUT PULONG ScatterGatherListSize,
OUT PULONG pNumberOfMapRegisters)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS
NTAPI
HalBuildScatterGatherList(
IN PADAPTER_OBJECT AdapterObject,
IN PDEVICE_OBJECT DeviceObject,
IN PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG Length,
IN PDRIVER_LIST_CONTROL ExecutionRoutine,
IN PVOID Context,
IN BOOLEAN WriteToDevice,
IN PVOID ScatterGatherBuffer,
IN ULONG ScatterGatherLength)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS
NTAPI
HalBuildMdlFromScatterGatherList(
IN PDMA_ADAPTER DmaAdapter,
IN PSCATTER_GATHER_LIST ScatterGather,
IN PMDL OriginalMdl,
OUT PMDL *TargetMdl)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
#endif
/**