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ArmVirtPkg: introduce FdtClientProtocol 

This introduces the FdtClientProtocol, which will be used to expose the
device tree provided by the host to other DXE drivers.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Ard Biesheuvel 2016-04-08 11:44:48 +02:00
parent fb8b54694c
commit 8dbae2c197
2 changed files with 111 additions and 0 deletions
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3
ArmVirtPkg/ArmVirtPkg.dec
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@ -34,6 +34,9 @@
gArmVirtTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
gEarlyPL011BaseAddressGuid = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } }
[Protocols]
gFdtClientProtocolGuid = { 0xE11FACA0, 0x4710, 0x4C8E, { 0xA7, 0xA2, 0x01, 0xBA, 0xA2, 0x59, 0x1B, 0x4C } }
[PcdsFixedAtBuild, PcdsPatchableInModule]
#
# This is the physical address where the device tree is expected to be stored

108
ArmVirtPkg/Include/Protocol/FdtClient.h Normal file
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@ -0,0 +1,108 @@
/** @file
DISCLAIMER: the FDT_CLIENT_PROTOCOL introduced here is a work in progress,
and should not be used outside of the EDK II tree.
Copyright (c) 2016, Linaro Ltd. 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 __FDT_CLIENT_H__
#define __FDT_CLIENT_H__
#define FDT_CLIENT_PROTOCOL_GUID { \
0xE11FACA0, 0x4710, 0x4C8E, {0xA7, 0xA2, 0x01, 0xBA, 0xA2, 0x59, 0x1B, 0x4C} \
}
//
// Protocol interface structure
//
typedef struct _FDT_CLIENT_PROTOCOL FDT_CLIENT_PROTOCOL;
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_GET_NODE_PROPERTY) (
IN FDT_CLIENT_PROTOCOL *This,
IN INT32 Node,
IN CONST CHAR8 *PropertyName,
OUT CONST VOID **Prop,
OUT UINT32 *PropSize OPTIONAL
);
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_SET_NODE_PROPERTY) (
IN FDT_CLIENT_PROTOCOL *This,
IN INT32 Node,
IN CONST CHAR8 *PropertyName,
IN CONST VOID *Prop,
IN UINT32 PropSize
);
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_FIND_COMPATIBLE_NODE) (
IN FDT_CLIENT_PROTOCOL *This,
IN CONST CHAR8 *CompatibleString,
OUT INT32 *Node
);
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_FIND_NEXT_COMPATIBLE_NODE) (
IN FDT_CLIENT_PROTOCOL *This,
IN CONST CHAR8 *CompatibleString,
IN INT32 PrevNode,
OUT INT32 *Node
);
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_FIND_COMPATIBLE_NODE_PROPERTY) (
IN FDT_CLIENT_PROTOCOL *This,
IN CONST CHAR8 *CompatibleString,
IN CONST CHAR8 *PropertyName,
OUT CONST VOID **Prop,
OUT UINT32 *PropSize OPTIONAL
);
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_FIND_COMPATIBLE_NODE_REG) (
IN FDT_CLIENT_PROTOCOL *This,
IN CONST CHAR8 *CompatibleString,
OUT CONST VOID **Reg,
OUT UINT32 *RegElemSize,
OUT UINT32 *RegSize
);
typedef
EFI_STATUS
(EFIAPI *FDT_CLIENT_GET_OR_INSERT_CHOSEN_NODE) (
IN FDT_CLIENT_PROTOCOL *This,
OUT INT32 *Node
);
struct _FDT_CLIENT_PROTOCOL {
FDT_CLIENT_GET_NODE_PROPERTY GetNodeProperty;
FDT_CLIENT_SET_NODE_PROPERTY SetNodeProperty;
FDT_CLIENT_FIND_COMPATIBLE_NODE FindCompatibleNode;
FDT_CLIENT_FIND_NEXT_COMPATIBLE_NODE FindNextCompatibleNode;
FDT_CLIENT_FIND_COMPATIBLE_NODE_PROPERTY FindCompatibleNodeProperty;
FDT_CLIENT_FIND_COMPATIBLE_NODE_REG FindCompatibleNodeReg;
FDT_CLIENT_GET_OR_INSERT_CHOSEN_NODE GetOrInsertChosenNode;
};
extern EFI_GUID gFdtClientProtocolGuid;
#endif