Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-08-02 05:15:41 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Implement VideoPortPutDmaAdapter, VideoPortStartDma, VideoPortCompleteDma, VideoPortLockBuffer, VideoPortUnlockBuffer,

Browse source 
svn path=/trunk/; revision=40675
This commit is contained in:
Johannes Anderwald 2009-04-24 02:18:30 +00:00
parent bc0a1f1a68
commit d3748c04be
2 changed files with 157 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

178
reactos/drivers/video/videoprt/dma.c
View file

@ -12,6 +12,24 @@
#define NDEBUG
#include <debug.h>
typedef struct
{
PDMA_ADAPTER Adapter;
ULONG MapRegisters;
}VIP_DMA_ADAPTER, *PVIP_DMA_ADAPTER;
typedef struct
{
PVOID HwDeviceExtension;
PSCATTER_GATHER_LIST ScatterGatherList;
PEXECUTE_DMA ExecuteDmaRoutine;
PVOID Context;
PVP_DMA_ADAPTER VpDmaAdapter;
}DMA_START_CONTEXT, *PDMA_START_CONTEXT;
/* PUBLIC FUNCTIONS ***********************************************************/
/*
@ -26,11 +44,10 @@ VideoPortAllocateCommonBuffer(IN PVOID HwDeviceExtension,
IN BOOLEAN CacheEnabled,
PVOID Reserved)
{
/* Forward to HAL */
return HalAllocateCommonBuffer((PADAPTER_OBJECT)VpDmaAdapter,
DesiredLength,
LogicalAddress,
CacheEnabled);
PVIP_DMA_ADAPTER Adapter = (PVIP_DMA_ADAPTER)VpDmaAdapter;
return Adapter->Adapter->DmaOperations->AllocateCommonBuffer(Adapter->Adapter, DesiredLength, LogicalAddress, CacheEnabled);
}
/*
@ -45,23 +62,23 @@ VideoPortReleaseCommonBuffer(IN PVOID HwDeviceExtension,
IN PVOID VirtualAddress,
IN BOOLEAN CacheEnabled)
{
/* Forward to HAL */
HalFreeCommonBuffer((PADAPTER_OBJECT)VpDmaAdapter,
Length,
LogicalAddress,
VirtualAddress,
CacheEnabled);
PVIP_DMA_ADAPTER Adapter = (PVIP_DMA_ADAPTER)VpDmaAdapter;
Adapter->Adapter->DmaOperations->FreeCommonBuffer(Adapter->Adapter, Length, LogicalAddress, VirtualAddress, CacheEnabled);
}
/*
* @unimplemented
* @implemented
*/
VOID
NTAPI
VideoPortPutDmaAdapter(IN PVOID HwDeviceExtension,
IN PVP_DMA_ADAPTER VpDmaAdapter)
{
UNIMPLEMENTED;
PVIP_DMA_ADAPTER Adapter = (PVIP_DMA_ADAPTER)VpDmaAdapter;
Adapter->Adapter->DmaOperations->PutDmaAdapter(Adapter->Adapter);
ExFreePool(Adapter);
}
/*
@ -75,29 +92,45 @@ VideoPortGetDmaAdapter(IN PVOID HwDeviceExtension,
DEVICE_DESCRIPTION DeviceDescription;
PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
ULONG NumberOfMapRegisters;
PVIP_DMA_ADAPTER Adapter;
PDMA_ADAPTER DmaAdapter;
/* Zero the structure */
/* Zero the structure */
RtlZeroMemory(&DeviceDescription,
sizeof(DEVICE_DESCRIPTION));
sizeof(DEVICE_DESCRIPTION));
/* Initialize the structure */
DeviceDescription.Version = DEVICE_DESCRIPTION_VERSION;
DeviceDescription.Master = TRUE /* ?? */;
DeviceDescription.DmaWidth = Width8Bits;
DeviceDescription.DmaWidth = Width8Bits;
DeviceDescription.DmaSpeed = Compatible;
/* Copy data from caller's device extension */
/* Copy data from caller's device extension */
DeviceDescription.ScatterGather = VpDeviceExtension->ScatterGather;
DeviceDescription.Dma32BitAddresses = VpDeviceExtension->Dma32BitAddresses;
DeviceDescription.Dma64BitAddresses = VpDeviceExtension->Dma64BitAddresses;
DeviceDescription.MaximumLength = VpDeviceExtension->MaximumLength;
DeviceDescription.Dma32BitAddresses = VpDeviceExtension->Dma32BitAddresses;
DeviceDescription.Dma64BitAddresses = VpDeviceExtension->Dma64BitAddresses;
DeviceDescription.MaximumLength = VpDeviceExtension->MaximumLength;
/* Copy data from the internal device extension */
DeviceDescription.BusNumber = DeviceExtension->SystemIoBusNumber;
DeviceDescription.InterfaceType = DeviceExtension->AdapterInterfaceType;
return (PVP_DMA_ADAPTER)HalGetAdapter(&DeviceDescription,
&NumberOfMapRegisters);
Adapter = ExAllocatePool(NonPagedPool, sizeof(VIP_DMA_ADAPTER));
if (!Adapter)
return NULL;
DmaAdapter = IoGetDmaAdapter(DeviceExtension->PhysicalDeviceObject, &DeviceDescription, &NumberOfMapRegisters);
if (!DmaAdapter)
{
ExFreePool(Adapter);
return NULL;
}
Adapter->Adapter = DmaAdapter;
Adapter->MapRegisters = NumberOfMapRegisters;
return (PVP_DMA_ADAPTER)Adapter;
}
/*
@ -198,24 +231,91 @@ VideoPortSignalDmaComplete(IN PVOID HwDeviceExtension,
return FALSE;
}
BOOLEAN
NTAPI
SyncScatterRoutine(
IN PVOID Context)
{
PDMA_START_CONTEXT StartContext = (PDMA_START_CONTEXT)Context;
StartContext->ExecuteDmaRoutine(StartContext->HwDeviceExtension, StartContext->VpDmaAdapter, (PVP_SCATTER_GATHER_LIST)StartContext->ScatterGatherList, StartContext->Context);
return TRUE;
}
VOID
NTAPI
ScatterAdapterControl(
IN PDEVICE_OBJECT *DeviceObject,
IN PIRP *Irp,
IN PSCATTER_GATHER_LIST ScatterGather,
IN PVOID Context)
{
PDMA_START_CONTEXT StartContext = (PDMA_START_CONTEXT)Context;
StartContext->ScatterGatherList = ScatterGather;
VideoPortSynchronizeExecution(StartContext->HwDeviceExtension, VpMediumPriority, SyncScatterRoutine, StartContext);
ExFreePool(StartContext);
}
/*
* @unimplemented
* @implemented
*/
VP_STATUS
NTAPI
VideoPortStartDma(IN PVOID HwDeviceExtension,
IN PVP_DMA_ADAPTER VpDmaAdapter,
IN PVOID Mdl,
IN ULONG Offset,
IN OUT PULONG pLength,
IN PEXECUTE_DMA ExecuteDmaRoutine,
IN PVOID Context,
IN BOOLEAN WriteToDevice)
IN PVOID Mdl,
IN ULONG Offset,
IN OUT PULONG pLength,
IN PEXECUTE_DMA ExecuteDmaRoutine,
IN PVOID Context,
IN BOOLEAN WriteToDevice)
{
UNIMPLEMENTED;
NTSTATUS Status;
KIRQL OldIrql;
PDMA_START_CONTEXT StartContext;
PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
PVIP_DMA_ADAPTER Adapter = (PVIP_DMA_ADAPTER)VpDmaAdapter;
/* Lie and return success */
return NO_ERROR;
StartContext = ExAllocatePool(NonPagedPool, sizeof(DMA_START_CONTEXT));
if (!StartContext)
{
return ERROR_NOT_ENOUGH_MEMORY;
}
StartContext->Context = Context;
StartContext->ExecuteDmaRoutine = ExecuteDmaRoutine;
StartContext->HwDeviceExtension = HwDeviceExtension;
StartContext->VpDmaAdapter = VpDmaAdapter;
KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
Status = Adapter->Adapter->DmaOperations->GetScatterGatherList(Adapter->Adapter,
DeviceExtension->PhysicalDeviceObject,
Mdl,
MmGetSystemAddressForMdl((PMDL)Mdl),
MmGetMdlByteCount((PMDL)Mdl),
(PDRIVER_LIST_CONTROL)ScatterAdapterControl,
StartContext,
WriteToDevice);
KeLowerIrql(OldIrql);
if (!NT_SUCCESS(Status))
{
*pLength = 0;
ExFreePool(StartContext);
Status = ERROR_NOT_ENOUGH_MEMORY;
}
else
{
Status = NO_ERROR;
}
/* Return status */
return Status;
}
/*
@ -240,7 +340,7 @@ VideoPortDoDma(IN PVOID HwDeviceExtension,
IN DMA_FLAGS DmaFlags)
{
/* Deprecated */
return NULL;
return NULL;
}
/*
@ -258,7 +358,7 @@ VideoPortAssociateEventsWithDmaHandle(IN PVOID HwDeviceExtension,
}
/*
* @unimplemented
* @implemented
*/
VP_STATUS
NTAPI
@ -267,8 +367,12 @@ VideoPortCompleteDma(IN PVOID HwDeviceExtension,
IN PVP_SCATTER_GATHER_LIST VpScatterGather,
IN BOOLEAN WriteToDevice)
{
UNIMPLEMENTED;
KIRQL OldIrql;
PVIP_DMA_ADAPTER Adapter = (PVIP_DMA_ADAPTER)VpDmaAdapter;
/* Lie and return success */
return NO_ERROR;
KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
Adapter->Adapter->DmaOperations->PutScatterGatherList(Adapter->Adapter, (PSCATTER_GATHER_LIST)VpScatterGather, WriteToDevice);
KeLowerIrql(OldIrql);
return NO_ERROR;
}

20
reactos/drivers/video/videoprt/resource.c
View file

@ -735,7 +735,7 @@ VideoPortReleaseBuffer(
}
/*
* @unimplemented
* @implemented
*/
PVOID NTAPI
@ -745,8 +745,16 @@ VideoPortLockBuffer(
IN ULONG Length,
IN VP_LOCK_OPERATION Operation)
{
UNIMPLEMENTED;
return NULL;
PMDL Mdl;
Mdl = IoAllocateMdl(BaseAddress, Length, FALSE, FALSE, NULL);
if (!Mdl)
{
return NULL;
}
/* FIXME use seh */
MmProbeAndLockPages(Mdl, KernelMode,Operation);
return Mdl;
}
/*
@ -758,7 +766,11 @@ VideoPortUnlockBuffer(
IN PVOID HwDeviceExtension,
IN PVOID Mdl)
{
UNIMPLEMENTED;
if (Mdl)
{
MmUnlockPages((PMDL)Mdl);
IoFreeMdl(Mdl);
}
}
/*