MockBlockIo.c

//
// Copyright (c) 2007-Present The PureDarwin Project.
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//
// @FILE
//  MockBlockio.c
//  This file is the c source for the Mock Block IO Test operations
//
// @AUTHOR
// Created by Cliff Sekel  for The PureDarwin Project github.com/PureDarwin
//

#include "MockBlockIo.h"

EFI_STATUS
MockReadBlocks(
    MockBlockIoProtocol *BlockIo,
    UINT32 MediaId,
    UINT64 LBA,
    UINTN BufferSize,
    VOID *Buffer
) {
    if (LBA + BufferSize / BlockIo->BlockSize > BlockIo->LastBlock) {
        return EFI_DEVICE_ERROR;
    }

    CopyMem(Buffer, BlockIo->DiskData + LBA * BlockIo->BlockSize, BufferSize);
    return EFI_SUCCESS;
}

EFI_STATUS
MockWriteBlocks(
    MockBlockIoProtocol *BlockIo,
    UINT32 MediaId,
    UINT64 LBA,
    UINTN BufferSize,
    VOID *Buffer
) {
    if (LBA + BufferSize / BlockIo->BlockSize > BlockIo->LastBlock) {
        return EFI_DEVICE_ERROR;
    }

    CopyMem(BlockIo->DiskData + LBA * BlockIo->BlockSize, Buffer, BufferSize);
    return EFI_SUCCESS;
}

MockBlockIoProtocol *
InitializeMockDisk(UINT64 TotalBlocks, UINTN BlockSize) {
    MockBlockIoProtocol *MockBlockIo = AllocateZeroPool(sizeof(MockBlockIoProtocol));
    MockBlockIo->BlockSize = BlockSize;
    MockBlockIo->LastBlock = TotalBlocks - 1;
    MockBlockIo->DiskData = AllocateZeroPool(TotalBlocks * BlockSize);
    return MockBlockIo;
}