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Aiden Park
b24fd2759c
This will fully support PatchCheck.py. - Remove all trailing whitespace - Convert LF to CRLF by default - Update EFI_D_* to DEBUG_* - Re-enable CRLF check in PatchCheck.py Signed-off-by: Aiden Park <aiden.park@intel.com>
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/** @file
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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/*
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* SpiAccessLib.h
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*/
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#ifndef _SPI_ACCESS_LIB_H_
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#define _SPI_ACCESS_LIB_H_
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#include <Uefi/UefiBaseType.h>
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#include <BlockDevice.h>
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#include <Service/SpiFlashService.h>
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#define SPI_BLOCK_SIZE 0x100
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/**
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This function reads blocks from the SPI slave device.
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@param[in] RegionType The region type of the SPI area to read from.
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@param[in] Address The block address in the RegionType to read from on the SPI.
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@param[in] BufferSize Size of the Buffer in bytes.
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@param[out] Buffer Pointer to caller-allocated buffer containing the data received during the SPI cycle.
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@retval EFI_SUCCESS SPI command completes successfully.
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@retval EFI_DEVICE_ERROR Device error, the command aborts abnormally.
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@retval EFI_ACCESS_DENIED Some unrecognized or blocked command encountered in hardware sequencing mode
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@retval EFI_UNSUPPORTED The specified SPI region is not supported for access.
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@retval EFI_INVALID_PARAMETER The parameters specified are not valid.
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**/
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EFI_STATUS
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EFIAPI
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SpiReadBlocks (
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IN UINTN RegionType,
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IN EFI_PEI_LBA Address,
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IN UINTN BufferSize,
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OUT VOID *Buffer
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);
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/**
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Gets a SPI device's media information.
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This function will provide the caller with the specified SPI device's media
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information. If the media changes, calling this function will update the media
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information accordingly.
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@param[in] RegionType The region type of the SPI area to access.
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@param[out] DevBlockInfo The Block Io information of the SPI device.
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@retval EFI_SUCCESS The Block Io information about the specified block device
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was obtained successfully.
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@retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
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error.
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**/
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EFI_STATUS
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EFIAPI
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SpiGetMediaInfo (
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IN UINTN RegionType,
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OUT DEVICE_BLOCK_INFO *DevBlockInfo
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);
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/**
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Initialize a SPI instance.
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@param[in] SpiPciBase The PCI base of the SPI flash device.
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@param[in] DevInitPhase The initialization phase to prepare the device.
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@retval EFI_SUCCESS The driver is successfully initialized.
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@retval Others Can't initialize the SPI device.
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**/
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EFI_STATUS
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EFIAPI
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InitializeSpi (
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IN UINTN SpiPciBase,
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IN DEVICE_INIT_PHASE DevInitPhase
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);
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#endif
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