SignedCapsulePkg/Include/Library/PlatformFlashAccessLib.h

   1 /** @file
   2   Platform flash device access library.
   3
   4   Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef __PLATFORM_FLASH_ACCESS_LIB_H__
  10 #define __PLATFORM_FLASH_ACCESS_LIB_H__
  11
  12 #include <Protocol/FirmwareManagement.h>
  13
  14 typedef enum {
  15   FlashAddressTypeRelativeAddress,
  16   FlashAddressTypeAbsoluteAddress,
  17 } FLASH_ADDRESS_TYPE;
  18
  19 //
  20 // Type 0 ~ 0x7FFFFFFF is defined in this library.
  21 // Type 0x80000000 ~ 0xFFFFFFFF is reserved for OEM.
  22 //
  23 typedef enum {
  24   PlatformFirmwareTypeSystemFirmware,
  25   PlatformFirmwareTypeNvRam,
  26 } PLATFORM_FIRMWARE_TYPE;
  27
  28 /**
  29   Perform flash write operation.
  30
  31   @param[in] FirmwareType      The type of firmware.
  32   @param[in] FlashAddress      The address of flash device to be accessed.
  33   @param[in] FlashAddressType  The type of flash device address.
  34   @param[in] Buffer            The pointer to the data buffer.
  35   @param[in] Length            The length of data buffer in bytes.
  36
  37   @retval EFI_SUCCESS           The operation returns successfully.
  38   @retval EFI_WRITE_PROTECTED   The flash device is read only.
  39   @retval EFI_UNSUPPORTED       The flash device access is unsupported.
  40   @retval EFI_INVALID_PARAMETER The input parameter is not valid.
  41 **/
  42 EFI_STATUS
  43 EFIAPI
  44 PerformFlashWrite (
  45   IN PLATFORM_FIRMWARE_TYPE  FirmwareType,
  46   IN EFI_PHYSICAL_ADDRESS    FlashAddress,
  47   IN FLASH_ADDRESS_TYPE      FlashAddressType,
  48   IN VOID                    *Buffer,
  49   IN UINTN                   Length
  50   );
  51
  52 /**
  53   Perform flash write operation with progress indicator.  The start and end
  54   completion percentage values are passed into this function.  If the requested
  55   flash write operation is broken up, then completion percentage between the
  56   start and end values may be passed to the provided Progress function.  The
  57   caller of this function is required to call the Progress function for the
  58   start and end completion percentage values.  This allows the Progress,
  59   StartPercentage, and EndPercentage parameters to be ignored if the requested
  60   flash write operation can not be broken up
  61
  62   @param[in] FirmwareType      The type of firmware.
  63   @param[in] FlashAddress      The address of flash device to be accessed.
  64   @param[in] FlashAddressType  The type of flash device address.
  65   @param[in] Buffer            The pointer to the data buffer.
  66   @param[in] Length            The length of data buffer in bytes.
  67   @param[in] Progress          A function used report the progress of the
  68                                firmware update.  This is an optional parameter
  69                                that may be NULL.
  70   @param[in] StartPercentage   The start completion percentage value that may
  71                                be used to report progress during the flash
  72                                write operation.
  73   @param[in] EndPercentage     The end completion percentage value that may
  74                                be used to report progress during the flash
  75                                write operation.
  76
  77   @retval EFI_SUCCESS           The operation returns successfully.
  78   @retval EFI_WRITE_PROTECTED   The flash device is read only.
  79   @retval EFI_UNSUPPORTED       The flash device access is unsupported.
  80   @retval EFI_INVALID_PARAMETER The input parameter is not valid.
  81 **/
  82 EFI_STATUS
  83 EFIAPI
  84 PerformFlashWriteWithProgress (
  85   IN PLATFORM_FIRMWARE_TYPE                         FirmwareType,
  86   IN EFI_PHYSICAL_ADDRESS                           FlashAddress,
  87   IN FLASH_ADDRESS_TYPE                             FlashAddressType,
  88   IN VOID                                           *Buffer,
  89   IN UINTN                                          Length,
  90   IN EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS  Progress         OPTIONAL,
  91   IN UINTN                                          StartPercentage,
  92   IN UINTN                                          EndPercentage
  93   );
  94
  95 #endif