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/** @file
This library identifies the firmware boot media device.
The firmware boot media device is used to make system initialization decisions in the boot flow dependent
upon firmware boot media. Note that the firmware boot media is the storage media that the boot firmware is stored on.
It is not the OS storage media which may be stored upon a different non-volatile storage device.
Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _FIRMWARE_BOOT_MEDIA_LIB_H_
#define _FIRMWARE_BOOT_MEDIA_LIB_H_
#include <Uefi.h>
typedef enum {
FwBootMediaSpi,
FwBootMediaUfs,
FwBootMediaEmmc,
FwBootMediaNvme,
FwBootMediaMax
} FW_BOOT_MEDIA_TYPE;
typedef struct {
FW_BOOT_MEDIA_TYPE BootMedia;
} FW_BOOT_MEDIA_HOB_DATA;
/**
Determines the current platform firmware boot media device.
@param[out] FwBootMediaType The current platform Boot Media type.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_NOT_FOUND The boot media type could not be found.
**/
EFI_STATUS
EFIAPI
GetFirmwareBootMediaType (
OUT FW_BOOT_MEDIA_TYPE *FwBootMediaType
);
/**
Indicates whether the boot media is presently known.
Note: Very early in boot this data may not be available.
@retval TRUE Boot media is known
@retval FALSE Boot media is not known
**/
BOOLEAN
EFIAPI
FirmwareBootMediaIsKnown (
VOID
);
/**
Determines if the platform firmware is booting from SPI.
@retval TRUE Platform firmware is booting from SPI
@retval FALSE Platform firmware is booting from a non-SPI device or the boot media is unknown
**/
BOOLEAN
EFIAPI
FirmwareBootMediaIsSpi (
VOID
);
/**
Determines if the platform firmware is booting from UFS.
@retval TRUE Platform firmware is booting from UFS
@retval FALSE Platform firmware is booting from a non-UFS device or the boot media is unknown
**/
BOOLEAN
EFIAPI
FirmwareBootMediaIsUfs (
VOID
);
/**
Determines if the platform firmware is booting from eMMC.
@retval TRUE Platform firmware is booting from eMMC
@retval FALSE Platform firmware is booting from a non-eMMC device or the boot media is unknown
**/
BOOLEAN
EFIAPI
FirmwareBootMediaIsEmmc (
VOID
);
/**
Determines if the platform firmware is booting from NVMe.
@retval TRUE Platform firmware is booting from NVMe.
@retval FALSE Platform firmware is booting from a non-NVMe device or the boot media is unknown
**/
BOOLEAN
EFIAPI
FirmwareBootMediaIsNvme (
VOID
);
#endif
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