mirror of
https://github.com/edk2-porting/edk2-msm
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128 lines
5.2 KiB
C
Executable File
128 lines
5.2 KiB
C
Executable File
/* Copyright (c) 2015-2018, 2020, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __BSL_BLOCK_UTILS_H__
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#define __BSL_BLOCK_UTILS_H__
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#include <Uefi.h>
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#include <Guid/FileSystemInfo.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Protocol/BlockIo.h>
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#include <Protocol/SimpleFileSystem.h>
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/* Selection attributes for selecting the BlkIo handles */
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#define BLK_IO_SEL_MEDIA_TYPE_REMOVABLE 0x0001
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#define BLK_IO_SEL_MEDIA_TYPE_NON_REMOVABLE 0x0002
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#define BLK_IO_SEL_PARTITIONED_GPT 0x0004
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#define BLK_IO_SEL_PARTITIONED_MBR 0x0008
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#define BLK_IO_SEL_MATCH_PARTITION_TYPE_GUID 0x0010
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#define BLK_IO_SEL_SELECT_MOUNTED_FILESYSTEM 0x0020
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#define BLK_IO_SEL_SELECT_BY_VOLUME_NAME 0x0040
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/* Select only the root device handle indicated. Doesn't return
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* any partitions within.
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* Currently this filter applies only for eMMC device, not the external
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* device connected via USB */
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#define BLK_IO_SEL_SELECT_ROOT_DEVICE_ONLY 0x0080
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/* Select the handle that's on the indicated root device.
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* Currently this filter applies only for eMMC device, not the external
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* device connected via USB */
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#define BLK_IO_SEL_MATCH_ROOT_DEVICE 0x0100
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/* Select through partition name*/
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#define BLK_IO_SEL_MATCH_PARTITION_LABEL 0x0200
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/* Do case insensetive string comparisons */
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#define BLK_IO_SEL_STRING_CASE_INSENSITIVE 0x0400
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/* Partitioning scheme types for selecting the BlkIo handles */
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#define PARTITIONED_TYPE_MBR 0x01
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#define PARTITIONED_TYPE_GPT 0x02
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#define MAX_HANDLE_INFO_LIST 128
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#define BOOT_DEV_NAME_SIZE_MAX 10
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/* Output data providing more information about the device handle */
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typedef struct {
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/* Handle that has BlkIO protocol installed, returned for all type of filters
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*/
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EFI_HANDLE *Handle;
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/* Block IO protocol interface is returned for all type of filters */
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EFI_BLOCK_IO_PROTOCOL *BlkIo;
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/* This HDD dev path is returned only if Matching Partition type is requested
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* It should be noted that the contents of this memory should NOT be changed
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*/
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const HARDDRIVE_DEVICE_PATH *PartitionInfo;
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} HandleInfo;
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/* Return True if integer overflow will occur */
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#define CHECK_ADD64(a, b) ((MAX_UINT64 - b < a) ? TRUE : FALSE)
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/* Any data specific to additional attributes can be added here. */
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typedef struct {
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EFI_GUID *RootDeviceType; /* GUID Selecting the root device type */
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EFI_GUID *PartitionType; /* Partition Type to match */
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CHAR8 * VolumeName; /* Mounted filesystem volume name to match */
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CHAR16 * PartitionLabel; /* Partition label to match */
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} PartiSelectFilter;
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EFI_STATUS
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EFIAPI
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GetPartitionEntry(IN EFI_HANDLE Handle, OUT EFI_PARTITION_ENTRY **PartEntry);
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/**
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Returns a list of BlkIo handles based on required criteria
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SelectionAttrib : Bitmask representing the conditions that need
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to be met for the handles returned. Based on the
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selections filter members should have valid values.
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FilterData : Instance of Partition Select Filter structure that
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needs extended data for certain type flags. For example
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Partition type and/or Volume name can be specified.
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HandleInfoPtr : Pointer Handle info where the information can be returned
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MaxBlkIopCnt : On input, max number of handles the buffer can hold,
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On output, the number of handles returned.
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@retval EFI_SUCCESS if the operation was successful
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*/
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EFI_STATUS
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EFIAPI
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GetBlkIOHandles(
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IN UINT32 SelectionAttrib, IN PartiSelectFilter *FilterData,
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OUT HandleInfo *HandleInfoPtr, IN OUT UINT32 *MaxBlkIopCnt);
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#endif |