[ros-diffs] [pschweitzer] 51012: [NTOSKRNL] Implemented FstubTranslatorNull, FstubTranslateResource, FstubTranslateRequirement, xHalGetInterruptTranslator. In other words: please welcome interrupt translator i...
pschweitzer at svn.reactos.org
pschweitzer at svn.reactos.org
Thu Mar 10 21:02:22 UTC 2011
Author: pschweitzer
Date: Thu Mar 10 21:02:21 2011
New Revision: 51012
URL: http://svn.reactos.org/svn/reactos?rev=51012&view=rev
Log:
[NTOSKRNL]
Implemented FstubTranslatorNull, FstubTranslateResource, FstubTranslateRequirement, xHalGetInterruptTranslator.
In other words: please welcome interrupt translator in ReactOS.
It's not used yet.
Added:
trunk/reactos/ntoskrnl/fstub/translate.c (with props)
Modified:
trunk/reactos/ntoskrnl/fstub/halstub.c
trunk/reactos/ntoskrnl/include/internal/hal.h
trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild
Modified: trunk/reactos/ntoskrnl/fstub/halstub.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/fstub/halstub.c?rev=51012&r1=51011&r2=51012&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/fstub/halstub.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/fstub/halstub.c [iso-8859-1] Thu Mar 10 21:02:21 2011
@@ -32,7 +32,7 @@
(pHalInitPnpDriver)NULL,
(pHalInitPowerManagement)NULL,
(pHalGetDmaAdapter) NULL,
- (pHalGetInterruptTranslator)NULL,
+ xHalGetInterruptTranslator,
(pHalStartMirroring)NULL,
(pHalEndMirroring)NULL,
(pHalMirrorPhysicalMemory)NULL,
Added: trunk/reactos/ntoskrnl/fstub/translate.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/fstub/translate.c?rev=51012&view=auto
==============================================================================
--- trunk/reactos/ntoskrnl/fstub/translate.c (added)
+++ trunk/reactos/ntoskrnl/fstub/translate.c [iso-8859-1] Thu Mar 10 21:02:21 2011
@@ -1,0 +1,189 @@
+/*
+* PROJECT: ReactOS Kernel
+* LICENSE: GPL - See COPYING in the top level directory
+* FILE: ntoskrnl/fstub/translate.c
+* PURPOSE: Interrupt Translator Routines
+* PROGRAMMERS: Pierre Schweitzer (pierre.schweitzer at reactos.org)
+*/
+
+/* INCLUDES ******************************************************************/
+
+#include <ntoskrnl.h>
+#define NDEBUG
+#include <debug.h>
+
+#define HAL_IRQ_TRANSLATOR_VERSION 0x0
+
+/* PRIVATE FUNCTIONS *********************************************************/
+
+/*
+ * @implemented
+ */
+VOID
+NTAPI
+FstubTranslatorNull(PVOID Context)
+{
+ PAGED_CODE();
+
+ /* Do nothing */
+ return;
+}
+
+/*
+ * @implemented
+ */
+NTSTATUS
+NTAPI
+FstubTranslateResource(IN OUT PVOID Context OPTIONAL,
+ IN PCM_PARTIAL_RESOURCE_DESCRIPTOR Source,
+ IN RESOURCE_TRANSLATION_DIRECTION Direction,
+ IN ULONG AlternativesCount OPTIONAL,
+ IN IO_RESOURCE_DESCRIPTOR Alternatives[],
+ IN PDEVICE_OBJECT PhysicalDeviceObject,
+ OUT PCM_PARTIAL_RESOURCE_DESCRIPTOR Target)
+{
+ INT k;
+ KIRQL Irql;
+ KAFFINITY Affinity;
+ ULONG MinimumVector, Vector;
+ PIO_RESOURCE_DESCRIPTOR Alternative;
+ NTSTATUS Status = STATUS_UNSUCCESSFUL;
+ PAGED_CODE();
+
+ ASSERT(Source->Type == CmResourceTypeInterrupt);
+
+ /* Copy common information */
+ Target->Type = Source->Type;
+ Target->ShareDisposition = Source->ShareDisposition;
+ Target->Flags = Source->Flags;
+
+ if (Direction == TranslateChildToParent)
+ {
+ /* Get IRQL, affinity & system vector for the device vector */
+ Target->u.Interrupt.Vector = HalGetInterruptVector((INTERFACE_TYPE)Context, 0,
+ Source->u.Interrupt.Vector,
+ Source->u.Interrupt.Vector,
+ &Irql, &Affinity);
+ Target->u.Interrupt.Level = Irql;
+ Target->u.Interrupt.Affinity = Affinity;
+ Status = STATUS_TRANSLATION_COMPLETE;
+ }
+ else if (Direction == TranslateParentToChild)
+ {
+ /* Browse all the resources */
+ for (k = 0; k < AlternativesCount; k++)
+ {
+ Alternative = &(Alternatives[k]);
+
+ ASSERT(Alternative->Type == CmResourceTypeInterrupt);
+
+ /* Try to find the device vector, proceeding by trial & error
+ * We try a vector, and translate it
+ */
+ MinimumVector = Alternative->u.Interrupt.MinimumVector;
+ while (MinimumVector <= Alternative->u.Interrupt.MaximumVector)
+ {
+ /* Translate the vector */
+ Vector = HalGetInterruptVector((INTERFACE_TYPE)Context, 0,
+ MinimumVector,
+ MinimumVector,
+ &Irql, &Affinity);
+
+ /* If the translated vector is matching the given translated vector */
+ if (Vector == Source->u.Interrupt.Vector)
+ {
+ /* We are done, send back device vector */
+ Target->u.Interrupt.Affinity = -1;
+ Target->u.Interrupt.Vector = MinimumVector;
+ Target->u.Interrupt.Level = MinimumVector;
+
+ return STATUS_SUCCESS;
+ }
+
+ MinimumVector++;
+ }
+ }
+ }
+
+ return Status;
+}
+
+/*
+ * @implemented
+ */
+NTSTATUS
+NTAPI
+FstubTranslateRequirement(IN OUT PVOID Context OPTIONAL,
+ IN PIO_RESOURCE_DESCRIPTOR Source,
+ IN PDEVICE_OBJECT PhysicalDeviceObject,
+ OUT PULONG TargetCount,
+ OUT PIO_RESOURCE_DESCRIPTOR *Target)
+{
+ KIRQL Irql;
+ KAFFINITY Affinity;
+ PAGED_CODE();
+
+ ASSERT(Source->Type == CmResourceTypeInterrupt);
+
+ /* Allocate output buffer */
+ *Target = ExAllocatePoolWithTag(PagedPool, sizeof(IO_RESOURCE_DESCRIPTOR), 'btsF');
+ if (!*Target)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Zero & set out count to 1 */
+ RtlZeroMemory(*Target, sizeof(IO_RESOURCE_DESCRIPTOR));
+ *TargetCount = 1;
+
+ /* Translate minimum interrupt vector */
+ (*Target)->u.Interrupt.MinimumVector = HalGetInterruptVector((INTERFACE_TYPE)Context, 0,
+ Source->u.Interrupt.MinimumVector,
+ Source->u.Interrupt.MinimumVector,
+ &Irql, &Affinity);
+
+ /* Translate maximum interrupt vector */
+ (*Target)->u.Interrupt.MaximumVector = HalGetInterruptVector((INTERFACE_TYPE)Context, 0,
+ Source->u.Interrupt.MaximumVector,
+ Source->u.Interrupt.MaximumVector,
+ &Irql, &Affinity);
+
+ return STATUS_TRANSLATION_COMPLETE;
+}
+
+/*
+ * @implemented
+ */
+NTSTATUS
+NTAPI
+xHalGetInterruptTranslator(IN INTERFACE_TYPE ParentInterfaceType,
+ IN ULONG ParentBusNumber,
+ IN INTERFACE_TYPE BridgeInterfaceType,
+ IN USHORT Size,
+ IN USHORT Version,
+ OUT PTRANSLATOR_INTERFACE Translator,
+ OUT PULONG BridgeBusNumber)
+{
+ PAGED_CODE();
+
+ ASSERT(Version == HAL_IRQ_TRANSLATOR_VERSION);
+ ASSERT(Size >= sizeof(TRANSLATOR_INTERFACE));
+
+ /* Only (E)ISA interfaces are supported */
+ if (BridgeInterfaceType == Internal || BridgeInterfaceType >= MicroChannel)
+ {
+ return STATUS_NOT_IMPLEMENTED;
+ }
+
+ /* Fill in output struct */
+ Translator->Size = sizeof(TRANSLATOR_INTERFACE);
+ Translator->Version = HAL_IRQ_TRANSLATOR_VERSION;
+ /* In case caller set interface to undefined, faulty it to ISA */
+ Translator->Context = (PVOID)((BridgeInterfaceType == InterfaceTypeUndefined) ? Isa : BridgeInterfaceType);
+ Translator->InterfaceReference = FstubTranslatorNull;
+ Translator->InterfaceDereference = FstubTranslatorNull;
+ Translator->TranslateResources = FstubTranslateResource;
+ Translator->TranslateResourceRequirements = FstubTranslateRequirement;
+
+ return STATUS_SUCCESS;
+}
Propchange: trunk/reactos/ntoskrnl/fstub/translate.c
------------------------------------------------------------------------------
svn:eol-style = native
Modified: trunk/reactos/ntoskrnl/include/internal/hal.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/hal.h?rev=51012&r1=51011&r2=51012&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/hal.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/hal.h [iso-8859-1] Thu Mar 10 21:02:21 2011
@@ -70,6 +70,16 @@
xHalVectorToIDTEntry(
IN ULONG Vector
);
+
+NTSTATUS
+NTAPI
+xHalGetInterruptTranslator(IN INTERFACE_TYPE ParentInterfaceType,
+ IN ULONG ParentBusNumber,
+ IN INTERFACE_TYPE BridgeInterfaceType,
+ IN USHORT Size,
+ IN USHORT Version,
+ OUT PTRANSLATOR_INTERFACE Translator,
+ OUT PULONG BridgeBusNumber);
//
Modified: trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild?rev=51012&r1=51011&r2=51012&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild [iso-8859-1] Thu Mar 10 21:02:21 2011
@@ -285,6 +285,7 @@
<file>disksup.c</file>
<file>fstubex.c</file>
<file>halstub.c</file>
+ <file>translate.c</file>
</directory>
<directory name="inbv">
<file>inbv.c</file>
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