diff options
Diffstat (limited to 'PcAtChipsetPkg/Include/Register/IoApic.h')
-rw-r--r-- | PcAtChipsetPkg/Include/Register/IoApic.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/PcAtChipsetPkg/Include/Register/IoApic.h b/PcAtChipsetPkg/Include/Register/IoApic.h new file mode 100644 index 0000000..d6e73be --- /dev/null +++ b/PcAtChipsetPkg/Include/Register/IoApic.h @@ -0,0 +1,86 @@ +/** @file
+ I/O APIC Register Definitions from 82093AA I/O Advanced Programmable Interrupt
+ Controller (IOAPIC), 1996.
+
+ Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __IO_APIC_H__
+#define __IO_APIC_H__
+
+///
+/// I/O APIC Register Offsets
+///
+#define IOAPIC_INDEX_OFFSET 0x00
+#define IOAPIC_DATA_OFFSET 0x10
+
+///
+/// I/O APIC Indirect Register Indexes
+///
+#define IO_APIC_IDENTIFICATION_REGISTER_INDEX 0x00
+#define IO_APIC_VERSION_REGISTER_INDEX 0x01
+#define IO_APIC_REDIRECTION_TABLE_ENTRY_INDEX 0x10
+
+///
+/// I/O APIC Interrupt Deliver Modes
+///
+#define IO_APIC_DELIVERY_MODE_FIXED 0
+#define IO_APIC_DELIVERY_MODE_LOWEST_PRIORITY 1
+#define IO_APIC_DELIVERY_MODE_SMI 2
+#define IO_APIC_DELIVERY_MODE_NMI 4
+#define IO_APIC_DELIVERY_MODE_INIT 5
+#define IO_APIC_DELIVERY_MODE_EXTINT 7
+
+#pragma pack(1)
+
+typedef union {
+ struct {
+ UINT32 Reserved0:24;
+ UINT32 Identification:4;
+ UINT32 Reserved1:4;
+ } Bits;
+ UINT32 Uint32;
+} IO_APIC_IDENTIFICATION_REGISTER;
+
+typedef union {
+ struct {
+ UINT32 Version:8;
+ UINT32 Reserved0:8;
+ UINT32 MaximumRedirectionEntry:8;
+ UINT32 Reserved1:8;
+ } Bits;
+ UINT32 Uint32;
+} IO_APIC_VERSION_REGISTER;
+
+typedef union {
+ struct {
+ UINT32 Vector: 8;
+ UINT32 DeliveryMode: 3;
+ UINT32 DestinationMode: 1;
+ UINT32 DeliveryStatus: 1;
+ UINT32 Polarity: 1;
+ UINT32 RemoteIRR: 1;
+ UINT32 TriggerMode: 1;
+ UINT32 Mask: 1;
+ UINT32 Reserved0: 15;
+ UINT32 Reserved1: 24;
+ UINT32 DestinationID: 8;
+ } Bits;
+ struct {
+ UINT32 Low;
+ UINT32 High;
+ } Uint32;
+ UINT64 Uint64;
+} IO_APIC_REDIRECTION_TABLE_ENTRY;
+
+#pragma pack()
+
+#endif
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