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+/** @file
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+ Provides firmware device specific services to support saving dependency to
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+ firmware device and getting dependency from firmware device.
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+
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+ Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
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+
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+ SPDX-License-Identifier: BSD-2-Clause-Patent
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+
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+**/
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+
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+#ifndef __FMP_DEPENDENCY_DEVICE_LIB__
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+#define __FMP_DEPENDENCY_DEVICE_LIB__
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+
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+#include <PiDxe.h>
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+#include <Protocol/FirmwareManagement.h>
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+
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+/**
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+ Save dependency to Fmp device.
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+
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+ @param[in] Depex Fmp dependency.
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+ @param[in] DepexSize Size, in bytes, of the Fmp dependency.
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+
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+ @retval EFI_SUCCESS Save Fmp dependency succeeds.
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+ @retval EFI_UNSUPPORTED Save Fmp dependency is not supported.
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+ @retval Others Save Fmp dependency fails.
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+
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+**/
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+EFI_STATUS
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+EFIAPI
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+SaveFmpDependency (
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+ IN EFI_FIRMWARE_IMAGE_DEP *Depex,
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+ IN UINT32 DepexSize
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+ );
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+
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+/**
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+ Get dependency from the Fmp device.
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+ This caller is responsible for freeing the dependency buffer.
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+
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+ @param[out] DepexSize Size, in bytes, of the dependency.
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+
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+ @retval The pointer to dependency.
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+ @retval NULL
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+
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+**/
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+EFI_FIRMWARE_IMAGE_DEP*
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+EFIAPI
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+GetFmpDependency (
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+ OUT UINT32 *DepexSize
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+ );
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+
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+#endif
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