mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-04 13:23:26 +01:00
196 lines
6.5 KiB
C
196 lines
6.5 KiB
C
/** @file
|
|
This file defines the Legacy SPI Flash Protocol.
|
|
|
|
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
@par Revision Reference:
|
|
This Protocol was introduced in UEFI PI Specification 1.6.
|
|
|
|
**/
|
|
|
|
#ifndef __LEGACY_SPI_FLASH_PROTOCOL_H__
|
|
#define __LEGACY_SPI_FLASH_PROTOCOL_H__
|
|
|
|
#include <Protocol/SpiNorFlash.h>
|
|
|
|
///
|
|
/// Global ID for the Legacy SPI Flash Protocol
|
|
///
|
|
#define EFI_LEGACY_SPI_FLASH_PROTOCOL_GUID \
|
|
{ 0xf01bed57, 0x04bc, 0x4f3f, \
|
|
{ 0x96, 0x60, 0xd6, 0xf2, 0xea, 0x22, 0x82, 0x59 }}
|
|
|
|
typedef struct _EFI_LEGACY_SPI_FLASH_PROTOCOL EFI_LEGACY_SPI_FLASH_PROTOCOL;
|
|
|
|
/**
|
|
Set the BIOS base address.
|
|
|
|
This routine must be called at or below TPL_NOTIFY.
|
|
The BIOS base address works with the protect range registers to protect
|
|
portions of the SPI NOR flash from erase and write operat ions.
|
|
The BIOS calls this API prior to passing control to the OS loader.
|
|
|
|
@param[in] This Pointer to an EFI_LEGACY_SPI_FLASH_PROTOCOL data
|
|
structure.
|
|
@param[in] BiosBaseAddress The BIOS base address.
|
|
|
|
@retval EFI_SUCCESS The BIOS base address was properly set
|
|
@retval EFI_ACCESS_ERROR The SPI controller is locked
|
|
@retval EFI_INVALID_PARAMETER BiosBaseAddress > This->MaximumOffset
|
|
@retval EFI_UNSUPPORTED The BIOS base address was already set or not a
|
|
legacy SPI host controller
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_LEGACY_SPI_FLASH_PROTOCOL_BIOS_BASE_ADDRESS) (
|
|
IN CONST EFI_LEGACY_SPI_FLASH_PROTOCOL *This,
|
|
IN UINT32 BiosBaseAddress
|
|
);
|
|
|
|
/**
|
|
Clear the SPI protect range registers.
|
|
|
|
This routine must be called at or below TPL_NOTIFY.
|
|
The BIOS uses this routine to set an initial condition on the SPI protect
|
|
range registers.
|
|
|
|
@param[in] This Pointer to an EFI_LEGACY_SPI_FLASH_PROTOCOL data structure.
|
|
|
|
@retval EFI_SUCCESS The registers were successfully cleared
|
|
@retval EFI_ACCESS_ERROR The SPI controller is locked
|
|
@retval EFI_UNSUPPORTED Not a legacy SPI host controller
|
|
|
|
**/
|
|
typedef EFI_STATUS
|
|
(EFIAPI *EFI_LEGACY_SPI_FLASH_PROTOCOL_CLEAR_SPI_PROTECT) (
|
|
IN CONST EFI_LEGACY_SPI_FLASH_PROTOCOL *This
|
|
);
|
|
|
|
/**
|
|
Determine if the SPI range is protected.
|
|
|
|
This routine must be called at or below TPL_NOTIFY.
|
|
The BIOS uses this routine to verify a range in the SPI is protected.
|
|
|
|
@param[in] This Pointer to an EFI_LEGACY_SPI_FLASH_PROTOCOL data
|
|
structure.
|
|
@param[in] BiosAddress Address within a 4 KiB block to start protecting.
|
|
@param[in] BlocksToProtect The number of 4 KiB blocks to protect.
|
|
|
|
@retval TRUE The range is protected
|
|
@retval FALSE The range is not protected
|
|
|
|
**/
|
|
typedef
|
|
BOOLEAN
|
|
(EFIAPI *EFI_LEGACY_SPI_FLASH_PROTOCOL_IS_RANGE_PROTECTED) (
|
|
IN CONST EFI_LEGACY_SPI_FLASH_PROTOCOL *This,
|
|
IN UINT32 BiosAddress,
|
|
IN UINT32 BlocksToProtect
|
|
);
|
|
|
|
/**
|
|
Set the next protect range register.
|
|
|
|
This routine must be called at or below TPL_NOTIFY.
|
|
The BIOS sets the protect range register to prevent write and erase
|
|
operations to a portion of the SPI NOR flash device.
|
|
|
|
@param[in] This Pointer to an EFI_LEGACY_SPI_FLASH_PROTOCOL data
|
|
structure.
|
|
@param[in] BiosAddress Address within a 4 KiB block to start protecting.
|
|
@param[in] BlocksToProtect The number of 4 KiB blocks to protect.
|
|
|
|
@retval EFI_SUCCESS The register was successfully updated
|
|
@retval EFI_ACCESS_ERROR The SPI controller is locked
|
|
@retval EFI_INVALID_PARAMETER BiosAddress < This->BiosBaseAddress, or
|
|
@retval EFI_INVALID_PARAMETER BlocksToProtect * 4 KiB
|
|
> This->MaximumRangeBytes, or
|
|
BiosAddress - This->BiosBaseAddress
|
|
+ (BlocksToProtect * 4 KiB)
|
|
> This->MaximumRangeBytes
|
|
@retval EFI_OUT_OF_RESOURCES No protect range register available
|
|
@retval EFI_UNSUPPORTED Call This->SetBaseAddress because the BIOS
|
|
base address is not set Not a legacy SPI host
|
|
controller
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_LEGACY_SPI_FLASH_PROTOCOL_PROTECT_NEXT_RANGE) (
|
|
IN CONST EFI_LEGACY_SPI_FLASH_PROTOCOL *This,
|
|
IN UINT32 BiosAddress,
|
|
IN UINT32 BlocksToProtect
|
|
);
|
|
|
|
/**
|
|
Lock the SPI controller configuration.
|
|
|
|
This routine must be called at or below TPL_NOTIFY.
|
|
This routine locks the SPI controller's configuration so that the software is
|
|
no longer able to update:
|
|
* Prefix table
|
|
* Opcode menu
|
|
* Opcode type table
|
|
* BIOS base address
|
|
* Protect range registers
|
|
|
|
@param[in] This Pointer to an EFI_LEGACY_SPI_FLASH_PROTOCOL data structure.
|
|
|
|
@retval EFI_SUCCESS The SPI controller was successfully locked
|
|
@retval EFI_ALREADY_STARTED The SPI controller was already locked
|
|
@retval EFI_UNSUPPORTED Not a legacy SPI host controller
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_LEGACY_SPI_FLASH_PROTOCOL_LOCK_CONTROLLER) (
|
|
IN CONST EFI_LEGACY_SPI_FLASH_PROTOCOL *This
|
|
);
|
|
|
|
///
|
|
/// The EFI_LEGACY_SPI_FLASH_PROTOCOL extends the EFI_SPI_NOR_FLASH_PROTOCOL
|
|
/// with APls to support the legacy SPI flash controller.
|
|
///
|
|
struct _EFI_LEGACY_SPI_FLASH_PROTOCOL {
|
|
///
|
|
/// This protocol manipulates the SPI NOR flash parts using a common set of
|
|
/// commands.
|
|
///
|
|
EFI_SPI_NOR_FLASH_PROTOCOL FlashProtocol;
|
|
|
|
//
|
|
// Legacy flash (SPI host) controller support
|
|
//
|
|
|
|
///
|
|
/// Set the BIOS base address.
|
|
///
|
|
EFI_LEGACY_SPI_FLASH_PROTOCOL_BIOS_BASE_ADDRESS BiosBaseAddress;
|
|
|
|
///
|
|
/// Clear the SPI protect range registers.
|
|
///
|
|
EFI_LEGACY_SPI_FLASH_PROTOCOL_CLEAR_SPI_PROTECT ClearSpiProtect;
|
|
|
|
///
|
|
/// Determine if the SPI range is protected.
|
|
///
|
|
EFI_LEGACY_SPI_FLASH_PROTOCOL_IS_RANGE_PROTECTED IsRangeProtected;
|
|
|
|
///
|
|
/// Set the next protect range register.
|
|
///
|
|
EFI_LEGACY_SPI_FLASH_PROTOCOL_PROTECT_NEXT_RANGE ProtectNextRange;
|
|
|
|
///
|
|
/// Lock the SPI controller configuration.
|
|
///
|
|
EFI_LEGACY_SPI_FLASH_PROTOCOL_LOCK_CONTROLLER LockController;
|
|
};
|
|
|
|
extern EFI_GUID gEfiLegacySpiFlashProtocolGuid;
|
|
|
|
#endif // __LEGACY_SPI_FLASH_PROTOCOL_H__
|