1 files changed, 62 insertions, 0 deletions
diff --git a/EmbeddedPkg/Include/Library/AcpiLib.h b/EmbeddedPkg/Include/Library/AcpiLib.h
new file mode 100644
index 0000000000..3eaa1d558e
--- /dev/null
+++ b/EmbeddedPkg/Include/Library/AcpiLib.h
@@ -0,0 +1,62 @@
+/** @file
+  Helper Library for ACPI
+
+  Copyright (c) 2014, ARM Ltd. All rights reserved.
+
+  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 __ACPI_LIB_H__
+#define __ACPI_LIB_H__
+
+#include <Uefi.h>
+
+//
+// Macros for the Generic Address Space
+//
+#define NULL_GAS               { EFI_ACPI_5_0_SYSTEM_MEMORY,  0, 0, EFI_ACPI_5_0_UNDEFINED, 0L }
+#define ARM_GAS8(Address)      { EFI_ACPI_5_0_SYSTEM_MEMORY,  8, 0, EFI_ACPI_5_0_BYTE,      Address }
+#define ARM_GAS16(Address)     { EFI_ACPI_5_0_SYSTEM_MEMORY, 16, 0, EFI_ACPI_5_0_WORD,      Address }
+#define ARM_GAS32(Address)     { EFI_ACPI_5_0_SYSTEM_MEMORY, 32, 0, EFI_ACPI_5_0_DWORD,     Address }
+#define ARM_GASN(Address)      { EFI_ACPI_5_0_SYSTEM_MEMORY,  0, 0, EFI_ACPI_5_0_DWORD,     Address }
+
+//
+// Macros for the Multiple APIC Description Table (MADT)
+//
+#define EFI_ACPI_5_0_GIC_DISTRIBUTOR_INIT(GicDistHwId, GicDistBase, GicDistVector) \
+  { \
+    EFI_ACPI_5_0_GICD, sizeof (EFI_ACPI_5_0_GIC_DISTRIBUTOR_STRUCTURE), EFI_ACPI_RESERVED_WORD, \
+    GicDistHwId, GicDistBase, GicDistVector, EFI_ACPI_RESERVED_DWORD \
+  }
+
+// Note the parking protocol is configured by UEFI if required
+#define EFI_ACPI_5_0_GIC_STRUCTURE_INIT(GicId, AcpiCpuId, Flags, PmuIrq, GicBase) \
+  { \
+    EFI_ACPI_5_0_GIC, sizeof (EFI_ACPI_5_0_GIC_STRUCTURE), EFI_ACPI_RESERVED_WORD, \
+    GicId, AcpiCpuId, Flags, 0, PmuIrq, 0, GicBase \
+  }
+
+
+/**
+  Locate and Install the ACPI tables from the Firmware Volume
+
+  @param  AcpiFile              Guid of the ACPI file into the Firmware Volume
+
+  @return EFI_SUCCESS           The function completed successfully.
+  @return EFI_NOT_FOUND         The protocol could not be located.
+  @return EFI_OUT_OF_RESOURCES  There are not enough resources to find the protocol.
+
+**/
+EFI_STATUS
+LocateAndInstallAcpiFromFv (
+  IN CONST EFI_GUID* AcpiFile
+  );
+
+#endif // __ACPI_LIB_H__