projects / reactos.git / blobdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | inline | side by side
[HAL]
[reactos.git] / reactos / hal / halx86 / generic / dma.c
diff --git a/reactos/hal/halx86/generic/dma.c b/reactos/hal/halx86/generic/dma.c
index d03449b..dcf9d14 100644 (file)
--- a/reactos/hal/halx86/generic/dma.c
+++ b/reactos/hal/halx86/generic/dma.c
@@ -72,6 +72,8 @@
 /* INCLUDES *****************************************************************/
 
 #include <hal.h>
+#include <suppress.h>
+
 #define NDEBUG
 #include <debug.h>
 
@@ -309,7 +311,7 @@ HalpGrowMapBuffers(IN PADAPTER_OBJECT AdapterObject,
             }
 
             RtlClearBit(AdapterObject->MapRegisters,
-                        CurrentEntry - AdapterObject->MapRegisterBase);
+                        (ULONG)(CurrentEntry - AdapterObject->MapRegisterBase));
             CurrentEntry->VirtualAddress = VirtualAddress;
             CurrentEntry->PhysicalAddress = PhysicalAddress;
 
@@ -552,8 +554,9 @@ HalpDmaInitializeEisaAdapter(IN PADAPTER_OBJECT AdapterObject,
         if (Controller == 1)
         {
             /* Set the Request Data */
+            _PRAGMA_WARNING_SUPPRESS(__WARNING_DEREF_NULL_PTR)
             WRITE_PORT_UCHAR(&((PDMA1_CONTROL)AdapterBaseVa)->Mode, DmaMode.Byte);
-            
+
             /* Unmask DMA Channel */
             WRITE_PORT_UCHAR(&((PDMA1_CONTROL)AdapterBaseVa)->SingleMask,
                              AdapterObject->ChannelNumber | DMA_CLEARMASK);
@@ -562,7 +565,7 @@ HalpDmaInitializeEisaAdapter(IN PADAPTER_OBJECT AdapterObject,
         {
             /* Set the Request Data */
             WRITE_PORT_UCHAR(&((PDMA2_CONTROL)AdapterBaseVa)->Mode, DmaMode.Byte);
-            
+
             /* Unmask DMA Channel */
             WRITE_PORT_UCHAR(&((PDMA2_CONTROL)AdapterBaseVa)->SingleMask,
                              AdapterObject->ChannelNumber | DMA_CLEARMASK);
@@ -917,7 +920,7 @@ typedef struct _SCATTER_GATHER_CONTEXT {
        ULONG MapRegisterCount;
        BOOLEAN WriteToDevice;
 } SCATTER_GATHER_CONTEXT, *PSCATTER_GATHER_CONTEXT;
-       
+
 
 IO_ALLOCATION_ACTION
 NTAPI
@@ -932,10 +935,10 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
        SCATTER_GATHER_ELEMENT TempElements[MAX_SG_ELEMENTS];
        ULONG ElementCount = 0, RemainingLength = AdapterControlContext->Length;
        PUCHAR CurrentVa = AdapterControlContext->CurrentVa;
-       
+
        /* Store the map register base for later in HalPutScatterGatherList */
        AdapterControlContext->MapRegisterBase = MapRegisterBase;
-       
+
        while (RemainingLength > 0 && ElementCount < MAX_SG_ELEMENTS)
        {
            TempElements[ElementCount].Length = RemainingLength;
@@ -948,16 +951,16 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
                                                                                                                   AdapterControlContext->WriteToDevice);
                if (TempElements[ElementCount].Length == 0)
                        break;
-                       
+
                DPRINT("Allocated one S/G element: 0x%I64u with length: 0x%x\n",
                        TempElements[ElementCount].Address.QuadPart,
                                TempElements[ElementCount].Length);
-               
+
                ASSERT(TempElements[ElementCount].Length <= RemainingLength);
                RemainingLength -= TempElements[ElementCount].Length;
                ElementCount++;
        }
-       
+
        if (RemainingLength > 0)
        {
                DPRINT1("Scatter/gather list construction failed!\n");
@@ -974,14 +977,14 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
        RtlCopyMemory(ScatterGatherList->Elements,
                      TempElements,
                                  sizeof(SCATTER_GATHER_ELEMENT) * ElementCount);
-                                 
+
        DPRINT("Initiating S/G DMA with %d element(s)\n", ElementCount);
-       
+
        AdapterControlContext->AdapterListControlRoutine(DeviceObject,
                                                         Irp,
                                                                                                         ScatterGatherList,
                                                                                                         AdapterControlContext->AdapterListControlContext);
-                                                                                                        
+
        return DeallocateObjectKeepRegisters;
 }
 
@@ -1025,10 +1028,10 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
                                                 IN BOOLEAN WriteToDevice)
 {
        PSCATTER_GATHER_CONTEXT AdapterControlContext;
-       
+
        AdapterControlContext = ExAllocatePoolWithTag(NonPagedPool, sizeof(SCATTER_GATHER_CONTEXT), TAG_DMA);
        if (!AdapterControlContext) return STATUS_INSUFFICIENT_RESOURCES;
-       
+
        AdapterControlContext->AdapterObject = AdapterObject;
        AdapterControlContext->Mdl = Mdl;
        AdapterControlContext->CurrentVa = CurrentVa;
@@ -1037,7 +1040,7 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
        AdapterControlContext->AdapterListControlRoutine = ExecutionRoutine;
        AdapterControlContext->AdapterListControlContext = Context;
        AdapterControlContext->WriteToDevice = WriteToDevice;
-       
+
        return IoAllocateAdapterChannel(AdapterObject,
                                        DeviceObject,
                                                                        AdapterControlContext->MapRegisterCount,
@@ -1071,7 +1074,7 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
 {
     PSCATTER_GATHER_CONTEXT AdapterControlContext = (PSCATTER_GATHER_CONTEXT)ScatterGather->Reserved;
        ULONG i;
-       
+
        for (i = 0; i < ScatterGather->NumberOfElements; i++)
        {
             IoFlushAdapterBuffers(AdapterObject,
@@ -1086,9 +1089,9 @@ HalpScatterGatherAdapterControl(IN PDEVICE_OBJECT DeviceObject,
        IoFreeMapRegisters(AdapterObject,
                           AdapterControlContext->MapRegisterBase,
                                           AdapterControlContext->MapRegisterCount);
-                                          
+
        DPRINT("S/G DMA has finished!\n");
-       
+
        ExFreePoolWithTag(AdapterControlContext, TAG_DMA);
        ExFreePoolWithTag(ScatterGather, TAG_DMA);
 }
@@ -1141,10 +1144,10 @@ HalReadDmaCounter(IN PADAPTER_OBJECT AdapterObject)
         do
         {
             OldCount = Count;
-         
+
             /* Send Reset */
             WRITE_PORT_UCHAR(&DmaControl1->ClearBytePointer, 0);
-            
+
             /* Read Count */
             Count = READ_PORT_UCHAR(&DmaControl1->DmaAddressCount
                                     [AdapterObject->ChannelNumber].DmaBaseCount);
@@ -1160,10 +1163,10 @@ HalReadDmaCounter(IN PADAPTER_OBJECT AdapterObject)
         do
         {
             OldCount = Count;
-         
+
             /* Send Reset */
             WRITE_PORT_UCHAR(&DmaControl2->ClearBytePointer, 0);
-            
+
             /* Read Count */
             Count = READ_PORT_UCHAR(&DmaControl2->DmaAddressCount
                                     [AdapterObject->ChannelNumber].DmaBaseCount);
@@ -1327,7 +1330,7 @@ HalAllocateAdapterChannel(IN PADAPTER_OBJECT AdapterObject,
         if (Index == MAXULONG)
         {
             InsertTailList(&MasterAdapter->AdapterQueue, &AdapterObject->AdapterQueue);
-            
+
             WorkItem = ExAllocatePoolWithTag(NonPagedPool,
                                              sizeof(GROW_WORK_ITEM),
                                              TAG_DMA);
@@ -1439,7 +1442,7 @@ IoFreeAdapterChannel(IN PADAPTER_OBJECT AdapterObject)
 
         DeviceQueueEntry = KeRemoveDeviceQueue(&AdapterObject->ChannelWaitQueue);
         if (!DeviceQueueEntry) break;
-      
+
         WaitContextBlock = CONTAINING_RECORD(DeviceQueueEntry,
                                              WAIT_CONTEXT_BLOCK,
                                              WaitQueueEntry);
@@ -1547,7 +1550,7 @@ IoFreeMapRegisters(IN PADAPTER_OBJECT AdapterObject,
 
         RealMapRegisterBase = (PROS_MAP_REGISTER_ENTRY)((ULONG_PTR)MapRegisterBase & ~MAP_BASE_SW_SG);
         RtlClearBits(MasterAdapter->MapRegisters,
-                     RealMapRegisterBase - MasterAdapter->MapRegisterBase,
+                     (ULONG)(RealMapRegisterBase - MasterAdapter->MapRegisterBase),
                      NumberOfMapRegisters);
     }
 
@@ -1593,12 +1596,12 @@ IoFreeMapRegisters(IN PADAPTER_OBJECT AdapterObject,
                 {
                     KeAcquireSpinLock(&MasterAdapter->SpinLock, &OldIrql);
                     RtlClearBits(MasterAdapter->MapRegisters,
-                                 AdapterObject->MapRegisterBase -
-                                 MasterAdapter->MapRegisterBase,
+                                 (ULONG)(AdapterObject->MapRegisterBase -
+                                         MasterAdapter->MapRegisterBase),
                                  AdapterObject->NumberOfMapRegisters);
                     KeReleaseSpinLock(&MasterAdapter->SpinLock, OldIrql);
                 }
-            
+
                 IoFreeAdapterChannel(AdapterObject);
                 break;
 
@@ -2011,16 +2014,16 @@ IoMapTransfer(IN PADAPTER_OBJECT AdapterObject,
 
             /* Reset Register */
             WRITE_PORT_UCHAR(&DmaControl1->ClearBytePointer, 0);
-         
+
             /* Set the Mode */
             WRITE_PORT_UCHAR(&DmaControl1->Mode, AdapterMode.Byte);
-         
+
             /* Set the Offset Register */
             WRITE_PORT_UCHAR(&DmaControl1->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseAddress,
                              (UCHAR)(TransferOffset));
             WRITE_PORT_UCHAR(&DmaControl1->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseAddress,
                              (UCHAR)(TransferOffset >> 8));
-                          
+
             /* Set the Page Register */
             WRITE_PORT_UCHAR(AdapterObject->PagePort + FIELD_OFFSET(EISA_CONTROL, DmaController1Pages),
                              (UCHAR)(PhysicalAddress.LowPart >> 16));
@@ -2029,13 +2032,13 @@ IoMapTransfer(IN PADAPTER_OBJECT AdapterObject,
                 WRITE_PORT_UCHAR(AdapterObject->PagePort + FIELD_OFFSET(EISA_CONTROL, DmaController2Pages),
                                  0);
             }
-         
+
             /* Set the Length */
             WRITE_PORT_UCHAR(&DmaControl1->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseCount,
                              (UCHAR)(TransferLength - 1));
             WRITE_PORT_UCHAR(&DmaControl1->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseCount,
                              (UCHAR)((TransferLength - 1) >> 8));
-                          
+
             /* Unmask the Channel */
             WRITE_PORT_UCHAR(&DmaControl1->SingleMask, AdapterObject->ChannelNumber | DMA_CLEARMASK);
         }
@@ -2045,16 +2048,16 @@ IoMapTransfer(IN PADAPTER_OBJECT AdapterObject,
 
             /* Reset Register */
             WRITE_PORT_UCHAR(&DmaControl2->ClearBytePointer, 0);
-         
+
             /* Set the Mode */
             WRITE_PORT_UCHAR(&DmaControl2->Mode, AdapterMode.Byte);
-         
+
             /* Set the Offset Register */
             WRITE_PORT_UCHAR(&DmaControl2->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseAddress,
                              (UCHAR)(TransferOffset));
             WRITE_PORT_UCHAR(&DmaControl2->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseAddress,
                              (UCHAR)(TransferOffset >> 8));
-                          
+
             /* Set the Page Register */
             WRITE_PORT_UCHAR(AdapterObject->PagePort + FIELD_OFFSET(EISA_CONTROL, DmaController1Pages),
                              (UCHAR)(PhysicalAddress.u.LowPart >> 16));
@@ -2063,13 +2066,13 @@ IoMapTransfer(IN PADAPTER_OBJECT AdapterObject,
                 WRITE_PORT_UCHAR(AdapterObject->PagePort + FIELD_OFFSET(EISA_CONTROL, DmaController2Pages),
                                  0);
             }
-         
+
             /* Set the Length */
             WRITE_PORT_UCHAR(&DmaControl2->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseCount,
                              (UCHAR)(TransferLength - 1));
             WRITE_PORT_UCHAR(&DmaControl2->DmaAddressCount[AdapterObject->ChannelNumber].DmaBaseCount,
                              (UCHAR)((TransferLength - 1) >> 8));
-                          
+
             /* Unmask the Channel */
             WRITE_PORT_UCHAR(&DmaControl2->SingleMask,
                              AdapterObject->ChannelNumber | DMA_CLEARMASK);
A free Windows-compatible Operating System