audk/EmbeddedPkg/Include/Library/AndroidBootImgLib.h

66 lines
1.8 KiB
C

/** @file
Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2017, Linaro.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __ABOOTIMG_H__
#define __ABOOTIMG_H__
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Uefi/UefiBaseType.h>
#include <Uefi/UefiSpec.h>
#define ANDROID_BOOTIMG_KERNEL_ARGS_SIZE 512
#define ANDROID_BOOT_MAGIC "ANDROID!"
#define ANDROID_BOOT_MAGIC_LENGTH (sizeof (ANDROID_BOOT_MAGIC) - 1)
// No documentation for this really - sizes of fields has been determined
// empirically.
#pragma pack(1)
/* https://android.googlesource.com/platform/system/core/+/master/mkbootimg/bootimg.h */
typedef struct {
UINT8 BootMagic[ANDROID_BOOT_MAGIC_LENGTH];
UINT32 KernelSize;
UINT32 KernelAddress;
UINT32 RamdiskSize;
UINT32 RamdiskAddress;
UINT32 SecondStageBootloaderSize;
UINT32 SecondStageBootloaderAddress;
UINT32 KernelTaggsAddress;
UINT32 PageSize;
UINT32 Reserved[2];
CHAR8 ProductName[16];
CHAR8 KernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];
UINT32 Id[32];
} ANDROID_BOOTIMG_HEADER;
#pragma pack ()
/* Check Val (unsigned) is a power of 2 (has only one bit set) */
#define IS_POWER_OF_2(Val) ((Val) != 0 && (((Val) & ((Val) - 1)) == 0))
/* Android boot image page size is not specified, but it should be power of 2
* 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__ */