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/** @file
Header file for the SwitchableGraphics Dxe driver.
This driver loads SwitchableGraphics ACPI tables.
@copyright
Copyright (c) 2010 - 2012 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
This file contains an 'Intel Peripheral Driver' and uniquely
identified as "Intel Reference Module" and is
licensed for Intel CPUs and chipsets under the terms of your
license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the
license agreement
**/
#ifndef _SWITCHABLE_GRAPHICS_DXE_H_
#define _SWITCHABLE_GRAPHICS_DXE_H_
//
// External include files do NOT need to be explicitly specified in real EDKII
// environment
//
#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
#include "EdkIIGlueDxe.h"
#include "EfiScriptLib.h"
#endif
#include "CpuRegs.h"
#include "CpuPlatformLib.h"
#include "PchAccess.h"
#include "Acpi3_0.h"
#include "SaAccess.h"
#include EFI_PROTOCOL_DEPENDENCY (PciIo)
#include EFI_PROTOCOL_DEPENDENCY (AcpiTable)
#include EFI_PROTOCOL_DEPENDENCY (FirmwareVolume)
#include EFI_PROTOCOL_DEPENDENCY (SaGlobalNvsArea)
#include EFI_GUID_DEFINITION (SaDataHob)
#include EFI_PROTOCOL_DEFINITION (SaPlatformPolicy)
///
/// SG ACPI table data storage file
///
#include EFI_GUID_DEFINITION (SgAcpiTableStorage)
///
/// Switchable Graphics defines.
///
#define CONVENTIONAL_MEMORY_TOP 0xA0000 ///< 640 KB
#define BIN_FILE_SIZE_MAX 0x10000
#define OPTION_ROM_SIGNATURE 0xAA55
#define MemoryRead16(Address) * (UINT16 *) (Address)
#define MemoryRead8(Address) * (UINT8 *) (Address)
///
/// PEG Capability Equates
///
#define PEG_CAP_ID 0x10
#define PEG_CAP_VER 0x2
#pragma pack(1)
typedef struct {
UINT16 Signature; ///< 0xAA55
UINT8 Reserved[22];
UINT16 PcirOffset;
} VBIOS_OPTION_ROM_HEADER;
#pragma pack()
#pragma pack(1)
typedef struct {
UINT32 Signature; ///< "PCIR"
UINT16 VendorId;
UINT16 DeviceId;
UINT16 Reserved0;
UINT16 Length;
UINT8 Revision;
UINT8 ClassCode[3];
UINT16 ImageLength;
UINT16 CodeRevision;
UINT8 CodeType;
UINT8 Indicator;
UINT16 Reserved1;
} VBIOS_PCIR_STRUCTURE;
#pragma pack()
/**
Initialize the SwitchableGraphics support.
@param[in] ImageHandle - Handle for the image of this driver
@param[in] DxePlatformSaPolicy - SA DxePlatformPolicy protocol
@retval EFI_SUCCESS - SwitchableGraphics initialization complete
@retval EFI_OUT_OF_RESOURCES - Unable to allocated memory
**/
EFI_STATUS
SwitchableGraphicsInit (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable,
IN DXE_PLATFORM_SA_POLICY_PROTOCOL *DxePlatformSaPolicy
)
;
/**
Load and execute the dGPU VBIOS.
@param[in] VbiosData - Pointer to VbiosData policy for Load/Execute and VBIOS Source.
LoadVbios - 0 = Do Not Load ; 1 = Load VBIOS
ExecuteVbios - 0 = Do Not Execute; 1 = Execute VBIOS
VbiosSource - 0 = PCIE Device ; 1 = FirmwareVolume => TBD
@retval EFI_SUCCESS - Load and execute successful.
@exception EFI_UNSUPPORTED - Secondary VBIOS not loaded.
**/
EFI_STATUS
LoadAndExecuteDgpuVbios (
IN SA_SG_VBIOS_CONFIGURATION *VbiosConfig
)
;
/**
Initialize the runtime SwitchableGraphics support data for ACPI tables in GlobalNvs.
@param[in] SgInfoDataHob - Pointer to Hob for SG system details.
@param[in] DxePlatformSgPolicy - Pointer to the loaded image protocol for this driver.
@retval EFI_SUCCESS - The data updated successfully.
**/
EFI_STATUS
UpdateGlobalNvsData (
IN SG_INFO_HOB SgInfo,
IN DXE_PLATFORM_SA_POLICY_PROTOCOL *DxePlatformSaPolicy
)
;
/**
Do an AllocatePages () of type AllocateMaxAddress for EfiBootServicesCode
memory.
@param[in] AllocateType - Allocated Legacy Memory Type
@param[in] StartPageAddress - Start address of range
@param[in] Pages - Number of pages to allocate
@param[in, out] Result - Result of allocation
@retval EFI_SUCCESS - Legacy16 code loaded
@retval Other - No protocol installed, unload driver.
**/
EFI_STATUS
AllocateLegacyMemory (
IN EFI_ALLOCATE_TYPE AllocateType,
IN EFI_PHYSICAL_ADDRESS StartPageAddress,
IN UINTN Pages,
IN OUT EFI_PHYSICAL_ADDRESS *Result
)
;
/**
Search and return the offset of desired Pci Express Capability ID
CAPID list:
0x0001 = Advanced Error Rreporting Capability
0x0002 = Virtual Channel Capability
0x0003 = Device Serial Number Capability
0x0004 = Power Budgeting Capability
@param[in] Bus - Pci Bus Number
@param[in] Device - Pci Device Number
@param[in] Function - Pci Function Number
@param[in] CapId - Extended CAPID to search for
@retval 0 - CAPID not found
@retval Other - CAPID found, Offset of desired CAPID
**/
UINT32
PcieFindExtendedCapId (
IN UINT8 Bus,
IN UINT8 Device,
IN UINT8 Function,
IN UINT16 CapId
)
;
/**
Find the Offset to a given Capabilities ID
CAPID list:
0x01 = PCI Power Management Interface
0x04 = Slot Identification
0x05 = MSI Capability
0x10 = PCI Express Capability
@param[in] Bus - Pci Bus Number
@param[in] Device - Pci Device Number
@param[in] Function - Pci Function Number
@param[in] CapId - CAPID to search for
@retval 0 - CAPID not found
@retval Other - CAPID found, Offset of desired CAPID
**/
UINT32
PcieFindCapId (
IN UINT8 Bus,
IN UINT8 Device,
IN UINT8 Function,
IN UINT8 CapId
)
;
/**
Read SG GPIO value
@param[in] Value - PCH GPIO number and Active value
Bit0 to Bit7 - PCH GPIO Number
Bit8 - GPIO Active value (0 = Active Low; 1 = Active High)
@retval GPIO read value.
**/
BOOLEAN
GpioRead (
IN UINT8 Value
)
;
/**
Write SG GPIO value
@param[in] Value - PCH GPIO number and Active value
Bit0 to Bit7 - PCH GPIO Number
Bit8 - GPIO Active value (0 = Active Low; 1 = Active High)
@param[in] Level - Write data (0 = Disable; 1 = Enable)
**/
VOID
GpioWrite (
IN UINT8 Value,
IN BOOLEAN Level
)
;
/**
Load Intel SG SSDT Tables
@param[in] None
@retval EFI_SUCCESS - SG SSDT Table load successful.
**/
EFI_STATUS
LoadAcpiTables (
VOID
)
;
VOID
EFIAPI
SgExitPmAuthCallback (
IN EFI_EVENT Event,
IN VOID *Context
);
#endif
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