1 files changed, 243 insertions, 0 deletions

diff --git a/private/ntos/nthals/halncr/i386/ncrmcabs.c b/private/ntos/nthals/halncr/i386/ncrmcabs.c
new file mode 100644
index 000000000..9d37fc7f6
--- /dev/null
+++ b/private/ntos/nthals/halncr/i386/ncrmcabs.c
@@ -0,0 +1,243 @@
+/*++
+
+
+Copyright (c) 1989  Microsoft Corporation
+
+Module Name:
+
+    ncrmcabus.c
+
+Abstract:
+
+Author:
+
+Environment:
+
+Revision History:
+
+
+--*/
+
+#include "halp.h"
+
+
+ULONG
+HalpGetMCAInterruptVector(
+    IN PBUS_HANDLER BusHandler,
+    IN PBUS_HANDLER RootHandler,
+    IN ULONG BusInterruptLevel,
+    IN ULONG BusInterruptVector,
+    OUT PKIRQL Irql,
+    OUT PKAFFINITY Affinity
+    );
+
+ULONG
+HalpGetSMCAInterruptVector(
+    IN PBUS_HANDLER BusHandler,
+    IN PBUS_HANDLER RootHandler,
+    IN ULONG BusInterruptLevel,
+    IN ULONG BusInterruptVector,
+    OUT PKIRQL Irql,
+    OUT PKAFFINITY Affinity
+    );
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text(PAGE,HalpGetMCAInterruptVector)
+#endif
+
+
+ULONG
+HalpGetMCAInterruptVector(
+    IN PBUS_HANDLER BusHandler,
+    IN PBUS_HANDLER RootHandler,
+    IN ULONG BusInterruptLevel,
+    IN ULONG BusInterruptVector,
+    OUT PKIRQL Irql,
+    OUT PKAFFINITY Affinity
+    )
+
+/*++
+
+Routine Description:
+
+    This function returns the system interrupt vector and IRQL level
+    corresponding to the specified bus interrupt level and/or vector. The
+    system interrupt vector and IRQL are suitable for use in a subsequent call
+    to KeInitializeInterrupt.
+
+Arguments:
+
+    BusHandle - Per bus specific structure
+
+    Irql - Returns the system request priority.
+
+    Affinity - Returns the system wide irq affinity.
+
+Return Value:
+
+    Returns the system interrupt vector corresponding to the specified device.
+
+--*/
+{
+    UNREFERENCED_PARAMETER( BusInterruptVector );
+
+    //
+    // On standard PCs, IRQ 2 is the cascaded interrupt, and it really shows
+    // up on IRQ 9.
+    //
+    if (BusInterruptLevel == 2) {
+        BusInterruptLevel = 9;
+    }
+
+    if (BusInterruptLevel > 15) {
+        return 0;
+    }
+
+    //
+    // Get parent's translation from here..
+    //
+
+    // RMU
+    BusInterruptVector = BusInterruptLevel;
+
+    return  BusHandler->ParentHandler->GetInterruptVector (
+                    BusHandler->ParentHandler,
+                    RootHandler,
+                    BusInterruptLevel,
+                    BusInterruptVector,
+                    Irql,
+                    Affinity
+                );
+}
+
+
+
+ULONG
+HalpGetSMCAInterruptVector(
+    IN PBUS_HANDLER BusHandler,
+    IN PBUS_HANDLER RootHandler,
+    IN ULONG BusInterruptLevel,
+    IN ULONG BusInterruptVector,
+    OUT PKIRQL Irql,
+    OUT PKAFFINITY Affinity
+    )
+
+/*++
+
+Routine Description:
+
+    This function returns the system interrupt vector and IRQL level
+    corresponding to the specified bus interrupt level and/or vector. The
+    system interrupt vector and IRQL are suitable for use in a subsequent call
+    to KeInitializeInterrupt.
+
+Arguments:
+
+    BusHandle - Per bus specific structure
+
+    Irql - Returns the system request priority.
+
+    Affinity - Returns the system wide irq affinity.
+
+Return Value:
+
+    Returns the system interrupt vector corresponding to the specified device.
+
+--*/
+{
+    UNREFERENCED_PARAMETER( BusInterruptVector );
+
+    //
+    // On standard PCs, IRQ 2 is the cascaded interrupt, and it really shows
+    // up on IRQ 9.
+    //
+    if (BusInterruptLevel == 2) {
+        BusInterruptLevel = 9;
+    }
+
+    if (BusInterruptLevel > 15) {
+        return 0;
+    }
+
+    //
+    // Get parent's translation from here..
+    //
+
+    // RMU
+    BusInterruptVector = BusInterruptLevel + 0x10;
+
+    return  BusHandler->ParentHandler->GetInterruptVector (
+                    BusHandler->ParentHandler,
+                    RootHandler,
+                    BusInterruptLevel,
+                    BusInterruptVector,
+                    Irql,
+                    Affinity
+                );
+}
+
+
+
+BOOLEAN
+HalpTranslateSMCBusAddress(
+    IN PBUS_HANDLER BusHandler,
+    IN PBUS_HANDLER RootHandler,
+    IN PHYSICAL_ADDRESS BusAddress,
+    IN OUT PULONG AddressSpace,
+    OUT PPHYSICAL_ADDRESS TranslatedAddress
+    )
+
+/*++
+
+Routine Description:
+
+    This function translates a SMC bus-relative address space and address into
+    a system physical address.
+
+Arguments:
+
+    BusAddress        - Supplies the bus-relative address
+
+    AddressSpace      -  Supplies the address space number.
+                         Returns the host address space number.
+
+                         AddressSpace == 0 => memory space
+                         AddressSpace == 1 => I/O space
+
+    TranslatedAddress - Supplies a pointer to return the translated address
+
+Return Value:
+
+    A return value of TRUE indicates that a system physical address
+    corresponding to the supplied bus relative address and bus address
+    number has been returned in TranslatedAddress.
+
+    A return value of FALSE occurs if the translation for the address was
+    not possible
+
+--*/
+
+{
+    UNREFERENCED_PARAMETER( BusHandler );
+    UNREFERENCED_PARAMETER( RootHandler );
+
+    if (BusAddress.HighPart != 0) {
+        // Unsupported range
+        return (FALSE);
+    }
+
+    switch (*AddressSpace) {
+        case 0:     // MEMORY space
+            TranslatedAddress->LowPart = BusAddress.LowPart;
+            TranslatedAddress->HighPart = 0;
+            break;
+        case 1:     // IO space
+            TranslatedAddress->LowPart = BusAddress.LowPart | 0x00010000;
+            TranslatedAddress->HighPart = 0;
+            break;
+        default:    // UNKOWN address space
+            return FALSE;
+    }
+
+    return(TRUE);
+}