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EmbeddedPkg/AndroidFastboot: split android boot header

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Split android boot header definition to share code among
different applications and libraries.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Jun Nie
2017-08-02 22:03:40 +08:00
committed by Leif Lindholm
parent dba1521c3d
commit 6e414300b5
4 changed files with 65 additions and 31 deletions
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35
EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c
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@ -14,32 +14,6 @@
#include "AndroidFastbootApp.h"
#define BOOT_MAGIC "ANDROID!"
#define BOOT_MAGIC_LENGTH sizeof (BOOT_MAGIC) - 1
// 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))
// No documentation for this really - sizes of fields has been determined
// empirically.
#pragma pack(1)
typedef struct {
CHAR8 BootMagic[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[BOOTIMG_KERNEL_ARGS_SIZE];
UINT32 Id[32];
} ANDROID_BOOTIMG_HEADER;
#pragma pack()
// Find the kernel and ramdisk in an Android boot.img.
// return EFI_INVALID_PARAMTER if the boot.img is invalid (i.e. doesn't have the
// right magic value),
@ -64,7 +38,8 @@ ParseAndroidBootImg (
Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
if (AsciiStrnCmp (Header->BootMagic, BOOT_MAGIC, BOOT_MAGIC_LENGTH) != 0) {
if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
ANDROID_BOOT_MAGIC_LENGTH) != 0) {
return EFI_INVALID_PARAMETER;
}
@ -72,7 +47,7 @@ ParseAndroidBootImg (
return EFI_NOT_FOUND;
}
ASSERT (IS_POWER_OF_2 (Header->PageSize));
ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
*KernelSize = Header->KernelSize;
*Kernel = BootImgBytePtr + Header->PageSize;
@ -84,8 +59,8 @@ ParseAndroidBootImg (
+ ALIGN_VALUE (Header->KernelSize, Header->PageSize));
}
AsciiStrnCpyS (KernelArgs, BOOTIMG_KERNEL_ARGS_SIZE, Header->KernelArgs,
BOOTIMG_KERNEL_ARGS_SIZE);
AsciiStrnCpyS (KernelArgs, ANDROID_BOOTIMG_KERNEL_ARGS_SIZE, Header->KernelArgs,
ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
return EFI_SUCCESS;
}