diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Protocol/VariableStore/VariableStore.h')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Protocol/VariableStore/VariableStore.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Protocol/VariableStore/VariableStore.h b/EdkCompatibilityPkg/Foundation/Protocol/VariableStore/VariableStore.h new file mode 100644 index 0000000000..5ab888b558 --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Protocol/VariableStore/VariableStore.h @@ -0,0 +1,105 @@ +/*++
+
+Copyright (c) 2004, Intel Corporation
+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.
+
+Module Name:
+
+ VariableStore.h
+
+Abstract:
+
+Revision History
+
+--*/
+
+#ifndef _VARIABLE_STORE_H
+#define _VARIABLE_STORE_H
+
+//
+// The variable store protocol interface is specific to the reference
+// implementation. The initialization code adds variable store devices
+// to the system, and the FW connects to the devices to provide the
+// variable store interfaces through these devices.
+//
+
+//
+// Variable Store Device protocol
+//
+#define EFI_VARIABLE_STORE_PROTOCOL_GUID \
+ { 0xf088cd91, 0xa046, 0x11d2, 0x8e, 0x42, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b }
+
+EFI_FORWARD_DECLARATION (EFI_VARIABLE_STORE_PROTOCOL);
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_CLEAR_STORE) (
+ IN EFI_VARIABLE_STORE_PROTOCOL *This,
+ IN OUT VOID *Scratch
+ );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_READ_STORE) (
+ IN EFI_VARIABLE_STORE_PROTOCOL *This,
+ IN UINTN Offset,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_UPDATE_STORE) (
+ IN EFI_VARIABLE_STORE_PROTOCOL *This,
+ IN UINTN Offset,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_CLEANUP_STORE) (
+ IN EFI_VARIABLE_STORE_PROTOCOL *This
+ );
+
+typedef struct _EFI_VARIABLE_STORE_PROTOCOL {
+
+ //
+ // Number of banks and bank size
+ //
+ UINT32 Attributes;
+ UINT32 BankSize;
+
+ //
+ // Functions to access the storage banks
+ //
+ EFI_CLEAR_STORE ClearStore;
+ EFI_READ_STORE ReadStore;
+ EFI_UPDATE_STORE UpdateStore;
+ EFI_CLEANUP_STORE CleanupStore;
+
+} EFI_VARIABLE_STORE_PROTOCOL;
+
+//
+//
+// ClearStore() - A function to clear the requested storage bank. A cleared
+// bank contains all "on" bits.
+//
+// ReadStore() - Read data from the requested store.
+//
+// UpdateStore() - Updates data on the requested store. The FW will only
+// ever issue updates to clear bits in the store. Updates must
+// be performed in LSb to MSb order of the update buffer.
+//
+// CleanupStore() - Do garbage collection and reclaim operation.
+//
+
+extern EFI_GUID gEfiVariableStoreProtocolGuid;
+
+#endif // _VARIABLE_STORE_H
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