DMA support added

svn path=/trunk/; revision=1760

reactos/include/ddk/halddk.h

@@ -1,4 +1,4 @@
-/* $Id: halddk.h,v 1.8 2001/01/14 15:35:56 ekohl Exp $
+/* $Id: halddk.h,v 1.9 2001/03/31 16:01:03 phreak Exp $
  *
  * COPYRIGHT:                See COPYING in the top level directory
  * PROJECT:                  ReactOS kernel
@@ -304,9 +304,10 @@ NTSTATUS
 STDCALL
 HalAllocateAdapterChannel (
 	IN	PADAPTER_OBJECT	AdapterObject,
-	ULONG	Unknown2,
+	IN PDEVICE_OBJECT DeviceObject,
 	IN	ULONG		NumberOfMapRegisters,
-	IN	PDRIVER_CONTROL	ExecutionRoutine
+	IN	PDRIVER_CONTROL	ExecutionRoutine,
+	IN PVOID Context
 	);
 
 PVOID

reactos/include/ddk/iotypes.h

@@ -1,4 +1,4 @@
-/* $Id: iotypes.h,v 1.23 2001/02/10 22:51:07 dwelch Exp $
+/* $Id: iotypes.h,v 1.24 2001/03/31 16:01:03 phreak Exp $
  * 
  */
 
@@ -84,9 +84,7 @@ typedef VOID (*PIO_APC_ROUTINE) (PVOID ApcContext,
 
 /* STRUCTURE TYPES ***********************************************************/
 
-typedef struct _ADAPTER_OBJECT
-{
-} ADAPTER_OBJECT, *PADAPTER_OBJECT;
+typedef struct _ADAPTER_OBJECT ADAPTER_OBJECT, *PADAPTER_OBJECT;
 
 /*
  * PURPOSE: Special timer associated with each device

reactos/include/ddk/structs.h

@@ -8,6 +8,3 @@
 #include <ddk/extypes.h>
 #include <ddk/pstypes.h>
    
-typedef struct _ADAPTER_OBJECT
-{
-} ADAPTER_OBJECT, *PADAPTER_OBJECT;

reactos/ntoskrnl/hal/x86/adapter.c

@@ -1,4 +1,4 @@
-/* $Id: adapter.c,v 1.3 2000/12/30 01:41:29 ekohl Exp $
+/* $Id: adapter.c,v 1.4 2001/03/31 15:58:24 phreak Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -12,8 +12,9 @@
 /* INCLUDES *****************************************************************/
 
 #include <ddk/ntddk.h>
-
+#include <ddk/iotypes.h>
 #include <internal/debug.h>
+#include <internal/i386/hal.h>
 
 /* FUNCTIONS *****************************************************************/
 
@@ -21,11 +22,46 @@
 
 NTSTATUS STDCALL
 HalAllocateAdapterChannel(PADAPTER_OBJECT AdapterObject,
-			  ULONG Unknown2,
+			  PDEVICE_OBJECT DeviceObject,
 			  ULONG NumberOfMapRegisters,
-			  PDRIVER_CONTROL ExecutionRoutine)
+			  PDRIVER_CONTROL ExecutionRoutine,
+			  PVOID Context )
 {
-   UNIMPLEMENTED;
+  KIRQL OldIrql;
+  PVOID Buffer;
+  int ret;
+  LARGE_INTEGER MaxAddress;
+
+  MaxAddress.QuadPart = 0x1000000;
+  Buffer = MmAllocateContiguousAlignedMemory( NumberOfMapRegisters * PAGESIZE,
+					      MaxAddress,
+					      0x10000 );
+  if( !Buffer )
+    return STATUS_INSUFFICIENT_RESOURCES;
+  KeAcquireSpinLock( &AdapterObject->SpinLock, &OldIrql );
+  if( AdapterObject->Inuse )
+    {
+      // someone is already using it, we need to wait
+      // create a wait block, and add it to the chain
+      UNIMPLEMENTED;
+    }
+  else {
+    AdapterObject->Inuse = TRUE;
+    KeReleaseSpinLock( &AdapterObject->SpinLock, OldIrql );
+    ret = ExecutionRoutine( DeviceObject,
+			    NULL,
+			    Buffer,
+			    Context );
+    KeAcquireSpinLock( &AdapterObject->SpinLock, &OldIrql );
+    if( ret == DeallocateObject )
+      {
+	MmFreeContiguousMemory( Buffer );
+	AdapterObject->Inuse = FALSE;
+      }
+    else AdapterObject->Buffer = Buffer;
+  }
+  KeReleaseSpinLock( &AdapterObject->SpinLock, OldIrql );
+  return STATUS_SUCCESS;
 }
 
 
@@ -37,14 +73,31 @@ IoFlushAdapterBuffers (PADAPTER_OBJECT	AdapterObject,
 		       ULONG		Length,
 		       BOOLEAN		WriteToDevice)
 {
-   UNIMPLEMENTED;
+  // if this was a read from device, copy data back to caller buffer, otherwise, do nothing
+  if( !WriteToDevice )
+    memcpy( MmGetSystemAddressForMdl( Mdl ), MapRegisterBase, Length );
+  return TRUE;
 }
 
 
 VOID STDCALL
 IoFreeAdapterChannel (PADAPTER_OBJECT	AdapterObject)
 {
-   UNIMPLEMENTED;
+  KIRQL OldIrql;
+  
+  KeAcquireSpinLock( &AdapterObject->SpinLock, &OldIrql );
+  if( AdapterObject->Inuse == FALSE )
+    {
+      DbgPrint( "Attempting to IoFreeAdapterChannel on a channel not in use\n" );
+      KeBugCheck(0);
+    }
+  AdapterObject->Inuse = FALSE;
+  if( AdapterObject->Buffer )
+    {
+      MmFreeContiguousMemory( AdapterObject->Buffer );
+      AdapterObject->Buffer = 0;
+    }
+  KeReleaseSpinLock( &AdapterObject->SpinLock, OldIrql );
 }
 
 
@@ -65,8 +118,36 @@ IoMapTransfer (PADAPTER_OBJECT	AdapterObject,
 	       PULONG		Length,
 	       BOOLEAN		WriteToDevice)
 {
-   UNIMPLEMENTED;
+  LARGE_INTEGER Address;
+  // program up the dma controller, and return
+  // if it is a write to the device, copy the caller buffer to the low buffer
+  if( WriteToDevice )
+    memcpy( MapRegisterBase,
+	    MmGetSystemAddressForMdl( Mdl ) + ( (DWORD)CurrentVa - (DWORD)MmGetMdlVirtualAddress( Mdl ) ),
+	    *Length );
+  // port 0xA is the dma mask register, or a 0x10 on to the channel number to mask it
+  WRITE_PORT_UCHAR( (PVOID)0x0A, AdapterObject->Channel | 0x10 );
+  // write zero to the reset register
+  WRITE_PORT_UCHAR( (PVOID)0x0C, 0 );
+  // mode register, or channel with 0x4 for write memory, 0x8 for read memory, 0x10 for non auto initialize
+  WRITE_PORT_UCHAR( (PVOID)0x0B, AdapterObject->Channel | ( WriteToDevice ? 0x8 : 0x4 ) );
+  // set the 64k page register for the channel
+  WRITE_PORT_UCHAR( AdapterObject->PagePort, (UCHAR)(((ULONG)MapRegisterBase)>>16) );
+  // low, then high address byte, which is always 0 for us, because we have a 64k alligned address
+  WRITE_PORT_UCHAR( AdapterObject->OffsetPort, 0 );
+  WRITE_PORT_UCHAR( AdapterObject->OffsetPort, 0 );
+  // count is 1 less than length, low then high
+  WRITE_PORT_UCHAR( AdapterObject->CountPort, (UCHAR)(*Length - 1) );
+  WRITE_PORT_UCHAR( AdapterObject->CountPort, (UCHAR)((*Length - 1)>>8) );
+  // unmask the channel to let it rip
+  WRITE_PORT_UCHAR( (PVOID)0x0A, AdapterObject->Channel );
+  Address.QuadPart = (DWORD)MapRegisterBase;
+  return Address;
 }
 
 
 /* EOF */
+
+
+
+

reactos/ntoskrnl/hal/x86/dma.c

@@ -1,4 +1,4 @@
-/* $Id: dma.c,v 1.9 2000/12/30 01:41:29 ekohl Exp $
+/* $Id: dma.c,v 1.10 2001/03/31 15:58:24 phreak Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -14,6 +14,14 @@
 #include <ddk/ntddk.h>
 
 #include <internal/debug.h>
+#include <internal/i386/hal.h>
+
+ADAPTER_OBJECT AdapterObjects[] = {
+  { 0, (PVOID)0x87, (PVOID)0x1, (PVOID)0x0, { 0 }, NULL },
+  { 1, (PVOID)0x83, (PVOID)0x3, (PVOID)0x2, { 0 }, NULL },
+  { 2, (PVOID)0x81, (PVOID)0x5, (PVOID)0x4, { 0 }, NULL },
+  { 3, (PVOID)0x82, (PVOID)0x7, (PVOID)0x6, { 0 }, NULL } };
+
 
 /* FUNCTIONS *****************************************************************/
 
@@ -67,9 +75,9 @@ HalGetAdapter (PDEVICE_DESCRIPTION	DeviceDescription,
 	       PULONG			NumberOfMapRegisters)
 /*
  * FUNCTION: Returns a pointer to an adapter object for the DMA device 
- * defined the device description structure
+ * defined in the device description structure
  * ARGUMENTS:
- *        DeviceObject = Structure describing the attributes of the device
+ *        DeviceDescription = Structure describing the attributes of the device
  *        NumberOfMapRegisters (OUT) = Returns the maximum number of map
  *                                     registers the device driver can
  *                                     allocate for DMA transfer operations
@@ -77,10 +85,27 @@ HalGetAdapter (PDEVICE_DESCRIPTION	DeviceDescription,
  *          NULL on failure
  */
 {
-   UNIMPLEMENTED;
+  /* Validate parameters in device description, and return a pointer to
+     the adapter object for the requested dma channel */
+  if( DeviceDescription->Version != DEVICE_DESCRIPTION_VERSION )
+    return NULL;
+  if( DeviceDescription->Master )
+    return NULL;
+  if( DeviceDescription->ScatterGather )
+    return NULL;
+  if( DeviceDescription->AutoInitialize )
+    return NULL;
+  if( DeviceDescription->Dma32BitAddress )
+    return NULL;
+  if( DeviceDescription->InterfaceType != Isa )
+     return NULL;
+  /*  if( DeviceDescription->DmaWidth != Width8Bits )
+      return NULL;*/
+  *NumberOfMapRegisters = 0x10;
+  AdapterObjects[DeviceDescription->DmaChannel].Buffer = 0;
+  return &AdapterObjects[DeviceDescription->DmaChannel];
 }
 
-
 ULONG STDCALL
 HalReadDmaCounter (PADAPTER_OBJECT	AdapterObject)
 {

reactos/ntoskrnl/include/internal/i386/hal.h

@@ -0,0 +1,45 @@
+/*
+ * 
+ */
+
+#ifndef __INTERNAL_HAL_HAL_H
+#define __INTERNAL_HAL_HAL_H
+
+#include <ddk/service.h>
+#include <internal/ntoskrnl.h>
+
+/*
+ * FUNCTION: Probes for a BIOS32 extension
+ */
+VOID Hal_bios32_probe(VOID);
+
+/*
+ * FUNCTION: Determines if a a bios32 service is present
+ */
+BOOLEAN Hal_bios32_is_service_present(ULONG service);
+
+VOID HalInitializeDisplay (PLOADER_PARAMETER_BLOCK LoaderBlock);
+VOID HalResetDisplay (VOID);
+
+VOID HalpInitBusHandlers (VOID);
+
+/* irql.c */
+VOID HalpInitPICs(VOID);
+
+/* udelay.c */
+VOID HalpCalibrateStallExecution(VOID);
+
+/* pci.c */
+VOID HalpInitPciBus (VOID);
+
+struct _ADAPTER_OBJECT {
+  int Channel;
+  PVOID PagePort;
+  PVOID CountPort;
+  PVOID OffsetPort;
+  KSPIN_LOCK SpinLock;
+  PVOID Buffer;
+  BOOLEAN Inuse;
+};
+
+#endif /* __INTERNAL_HAL_HAL_H */

reactos/ntoskrnl/io/adapter.c

@@ -1,4 +1,4 @@
-/* $Id: adapter.c,v 1.4 2000/07/19 14:18:18 dwelch Exp $
+/* $Id: adapter.c,v 1.5 2001/03/31 15:58:24 phreak Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -30,7 +30,11 @@ IoAllocateAdapterChannel (PADAPTER_OBJECT	AdapterObject,
 			  PDRIVER_CONTROL	ExecutionRoutine,
 			  PVOID		Context)
 {
-   UNIMPLEMENTED;
+  return HalAllocateAdapterChannel( AdapterObject,
+				    DeviceObject,
+				    NumberOfMapRegisters,
+				    ExecutionRoutine,
+				    Context );
 }
 
 

reactos/ntoskrnl/ntoskrnl.def

@@ -1,4 +1,4 @@
-; $Id: ntoskrnl.def,v 1.101 2001/03/25 02:34:27 dwelch Exp $
+; $Id: ntoskrnl.def,v 1.102 2001/03/31 15:58:23 phreak Exp $
 ;
 ; reactos/ntoskrnl/ntoskrnl.def
 ;
@@ -1014,7 +1014,7 @@ ExTryToAcquireFastMutex@4
 HalAcquireDisplayOwnership@4
 HalAdjustResourceList@4
 HalAllProcessorsStarted@0
-HalAllocateAdapterChannel@16
+HalAllocateAdapterChannel@20
 HalAllocateCommonBuffer@16
 ;HalAllocateCrashDumpRegisters@8
 HalAssignSlotResources@32

reactos/ntoskrnl/ntoskrnl.edf

@@ -1,4 +1,4 @@
-; $Id: ntoskrnl.edf,v 1.88 2001/03/25 02:34:27 dwelch Exp $
+; $Id: ntoskrnl.edf,v 1.89 2001/03/31 15:58:24 phreak Exp $
 ;
 ; reactos/ntoskrnl/ntoskrnl.def
 ;
@@ -1012,7 +1012,7 @@ ExTryToAcquireFastMutex=ExTryToAcquireFastMutex@4
 HalAcquireDisplayOwnership=HalAcquireDisplayOwnership@4
 HalAdjustResourceList=HalAdjustResourceList@4
 HalAllProcessorsStarted=HalAllProcessorsStarted@0
-HalAllocateAdapterChannel=HalAllocateAdapterChannel@16
+HalAllocateAdapterChannel=HalAllocateAdapterChannel@20
 HalAllocateCommonBuffer=HalAllocateCommonBuffer@16
 ;HalAllocateCrashDumpRegisters=HalAllocateCrashDumpRegisters@8
 HalAssignSlotResource=HalAssignSlotResources@32