From fa74dd2217aebe6930890e55d58d35e639b18c2e Mon Sep 17 00:00:00 2001
From: Jun Nie <jun.nie@linaro.org>
Date: Thu, 17 Aug 2017 20:58:59 +0800
Subject: EmbeddedPkg/AndroidBoot: boot android kernel from storage

Add an android kernel loader that could load kernel from storage
device.
This android boot image BDS add addtitional cmdline/dtb/ramfs
support besides kernel that is introduced by Android boot header.

This patch is derived from Haojian's code as below link.
https://patches.linaro.org/patch/94683/

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
---
 EmbeddedPkg/Include/Library/AndroidBootImgLib.h | 13 +++++++
 EmbeddedPkg/Include/Protocol/AndroidBootImg.h   | 47 +++++++++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 EmbeddedPkg/Include/Protocol/AndroidBootImg.h

(limited to 'EmbeddedPkg/Include')

diff --git a/EmbeddedPkg/Include/Library/AndroidBootImgLib.h b/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
index 06da751181..331caa50c3 100644
--- a/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
+++ b/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
@@ -55,4 +55,17 @@ typedef struct {
  * and larger than boot header */
 #define IS_VALID_ANDROID_PAGE_SIZE(Val)   \
              (IS_POWER_OF_2(Val) && (Val > sizeof(ANDROID_BOOTIMG_HEADER)))
+
+EFI_STATUS
+AndroidBootImgGetImgSize (
+  IN  VOID    *BootImg,
+  OUT UINTN   *ImgSize
+  );
+
+EFI_STATUS
+AndroidBootImgBoot (
+  IN VOID                   *Buffer,
+  IN UINTN                   BufferSize
+  );
+
 #endif /* __ABOOTIMG_H__ */
diff --git a/EmbeddedPkg/Include/Protocol/AndroidBootImg.h b/EmbeddedPkg/Include/Protocol/AndroidBootImg.h
new file mode 100644
index 0000000000..1c458d0255
--- /dev/null
+++ b/EmbeddedPkg/Include/Protocol/AndroidBootImg.h
@@ -0,0 +1,47 @@
+/** @file
+
+  Copyright (c) 2017, Linaro. 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 __ANDROID_BOOTIMG_PROTOCOL_H__
+#define __ANDROID_BOOTIMG_PROTOCOL_H__
+
+//
+// Protocol interface structure
+//
+typedef struct _ANDROID_BOOTIMG_PROTOCOL    ANDROID_BOOTIMG_PROTOCOL;
+
+//
+// Function Prototypes
+//
+typedef
+EFI_STATUS
+(EFIAPI *ANDROID_BOOTIMG_APPEND_KERNEL_ARGS) (
+  IN CHAR16            *Args,
+  IN UINTN              Size
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *ANDROID_BOOTIMG_UPDATE_DTB) (
+  IN  EFI_PHYSICAL_ADDRESS    OrigDtbBase;
+  OUT EFI_PHYSICAL_ADDRESS   *NewDtbBase;
+  );
+
+struct _ANDROID_BOOTIMG_PROTOCOL {
+  ANDROID_BOOTIMG_APPEND_KERNEL_ARGS        AppendArgs;
+  ANDROID_BOOTIMG_UPDATE_DTB                UpdateDtb;
+};
+
+extern EFI_GUID gAndroidBootImgProtocolGuid;
+
+#endif /* __ANDROID_BOOTIMG_PROTOCOL_H__ */
-- 
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