diff options
Diffstat (limited to 'PcAtChipsetPkg/8259InterruptControllerDxe/8259.c')
| -rw-r--r-- | PcAtChipsetPkg/8259InterruptControllerDxe/8259.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c index 7d33f84..ac06427 100644 --- a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c +++ b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c @@ -209,8 +209,8 @@ Interrupt8259SetVectorBase ( IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, Mask);
}
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, 0x20);
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, 0x20);
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, LEGACY_8259_EOI);
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, LEGACY_8259_EOI);
return EFI_SUCCESS;
}
@@ -351,11 +351,6 @@ Interrupt8259SetMode ( //
// Write new legacy mode mask/trigger level
//
- Interrupt8259SetVectorBase (This, LEGACY_MODE_BASE_VECTOR_MASTER, LEGACY_MODE_BASE_VECTOR_SLAVE);
-
- //
- // Enable Interrupts
- //
Interrupt8259WriteMask (mLegacyModeMask, mLegacyModeEdgeLevel);
return EFI_SUCCESS;
@@ -391,11 +386,6 @@ Interrupt8259SetMode ( //
// Write new protected mode mask/trigger level
//
- Interrupt8259SetVectorBase (This, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);
-
- //
- // Enable Interrupts
- //
Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);
return EFI_SUCCESS;
@@ -519,7 +509,33 @@ Interrupt8259GetInterruptLine ( OUT UINT8 *Vector
)
{
- return EFI_UNSUPPORTED;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ UINT8 InterruptLine;
+ EFI_STATUS Status;
+
+ Status = gBS->HandleProtocol (
+ PciHandle,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint8,
+ PCI_INT_LINE_OFFSET,
+ 1,
+ &InterruptLine
+ );
+ //
+ // Interrupt line is same location for standard PCI cards, standard
+ // bridge and CardBus bridge.
+ //
+ *Vector = InterruptLine;
+
+ return EFI_SUCCESS;
}
/**
|