/** @file
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
of the BSD License which accompanies this distribution. The
full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _FB_GOP_H_
#define _FB_GOP_H_
#include <Protocol/PciIo.h>
#include <Protocol/DevicePath.h>
#include <Protocol/GraphicsOutput.h>
#include <Protocol/EdidActive.h>
#include <Protocol/EdidDiscovered.h>
#include <Guid/StatusCodeDataTypeId.h>
#include <Guid/EventGroup.h>
#include <Guid/FrameBufferInfoGuid.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <Library/DebugLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <IndustryStandard/Pci.h>
//
// Packed format support: The number of bits reserved for each of the colors and the actual
// position of RGB in the frame buffer is specified in the VBE Mode information
//
typedef struct {
UINT8 Position; // Position of the color
UINT8 Mask; // The number of bits expressed as a mask
} FB_VIDEO_COLOR_PLACEMENT;
//
// BIOS Graphics Output Graphical Mode Data
//
typedef struct {
UINT16 VbeModeNumber;
UINT16 BytesPerScanLine;
VOID *LinearFrameBuffer;
UINTN FrameBufferSize;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
UINT32 ColorDepth;
UINT32 RefreshRate;
UINT32 BitsPerPixel;
FB_VIDEO_COLOR_PLACEMENT Red;
FB_VIDEO_COLOR_PLACEMENT Green;
FB_VIDEO_COLOR_PLACEMENT Blue;
FB_VIDEO_COLOR_PLACEMENT Reserved;
EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
EFI_PIXEL_BITMASK PixelBitMask;
} FB_VIDEO_MODE_DATA;
//
// BIOS video child handle private data Structure
//
#define FB_VIDEO_DEV_SIGNATURE SIGNATURE_32 ('B', 'V', 'M', 'p')
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
//
// Consumed Protocols
//
EFI_PCI_IO_PROTOCOL *PciIo;
//
// Produced Protocols
//
EFI_GRAPHICS_OUTPUT_PROTOCOL GraphicsOutput;
EFI_EDID_DISCOVERED_PROTOCOL EdidDiscovered;
EFI_EDID_ACTIVE_PROTOCOL EdidActive;
//
// Graphics Output Protocol related fields
//
UINTN CurrentMode;
UINTN MaxMode;
FB_VIDEO_MODE_DATA *ModeData;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;
//
// Status code
//
EFI_DEVICE_PATH_PROTOCOL *GopDevicePath;
} FB_VIDEO_DEV;
#define FB_VIDEO_DEV_FROM_PCI_IO_THIS(a) CR (a, FB_VIDEO_DEV, PciIo, FB_VIDEO_DEV_SIGNATURE)
#define FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS(a) CR (a, FB_VIDEO_DEV, GraphicsOutput, FB_VIDEO_DEV_SIGNATURE)
#define GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER 0xffff
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gFbGopDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gFbGopComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gFbGopComponentName2;
//
// Driver Binding Protocol functions
//
/**
Supported.
@param This Pointer to driver binding protocol
@param Controller Controller handle to connect
@param RemainingDevicePath A pointer to the remaining portion of a device
path
@retval EFI_STATUS EFI_SUCCESS:This controller can be managed by this
driver, Otherwise, this controller cannot be
managed by this driver
**/
EFI_STATUS
EFIAPI
FbGopDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Install Graphics Output Protocol onto VGA device handles.
@param This Pointer to driver binding protocol
@param Controller Controller handle to connect
@param RemainingDevicePath A pointer to the remaining portion of a device
path
@return EFI_STATUS
**/
EFI_STATUS
EFIAPI
FbGopDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop.
@param This Pointer to driver binding protocol
@param Controller Controller handle to connect
@param NumberOfChildren Number of children handle created by this driver
@param ChildHandleBuffer Buffer containing child handle created
@retval EFI_SUCCESS Driver disconnected successfully from controller
@retval EFI_UNSUPPORTED Cannot find FB_VIDEO_DEV structure
**/
EFI_STATUS
EFIAPI
FbGopDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// Private worker functions
//
/**
Check for VBE device.
@param FbGopPrivate Pointer to FB_VIDEO_DEV structure
@retval EFI_SUCCESS VBE device found
**/
EFI_STATUS
FbGopCheckForVbe (
IN OUT FB_VIDEO_DEV *FbGopPrivate
);
/**
Release resource for biso video instance.
@param FbGopPrivate Video child device private data structure
**/
VOID
FbGopDeviceReleaseResource (
FB_VIDEO_DEV *FbGopPrivate
);
//
// BIOS Graphics Output Protocol functions
//
/**
Graphics Output protocol interface to get video mode.
@param This Protocol instance pointer.
@param ModeNumber The mode number to return information on.
@param SizeOfInfo A pointer to the size, in bytes, of the Info
buffer.
@param Info Caller allocated buffer that returns information
about ModeNumber.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
@retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the
video mode.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
**/
EFI_STATUS
EFIAPI
FbGopGraphicsOutputQueryMode (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN UINT32 ModeNumber,
OUT UINTN *SizeOfInfo,
OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
);
/**
Graphics Output protocol interface to set video mode.
@param This Protocol instance pointer.
@param ModeNumber The mode number to be set.
@retval EFI_SUCCESS Graphics mode was changed.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the
request.
@retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
**/
EFI_STATUS
EFIAPI
FbGopGraphicsOutputSetMode (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
IN UINT32 ModeNumber
);
/**
Graphics Output protocol instance to block transfer for VBE device.
@param This Pointer to Graphics Output protocol instance
@param BltBuffer The data to transfer to screen
@param BltOperation The operation to perform
@param SourceX The X coordinate of the source for BltOperation
@param SourceY The Y coordinate of the source for BltOperation
@param DestinationX The X coordinate of the destination for
BltOperation
@param DestinationY The Y coordinate of the destination for
BltOperation
@param Width The width of a rectangle in the blt rectangle in
pixels
@param Height The height of a rectangle in the blt rectangle in
pixels
@param Delta Not used for EfiBltVideoFill and
EfiBltVideoToVideo operation. If a Delta of 0 is
used, the entire BltBuffer will be operated on. If
a subrectangle of the BltBuffer is used, then
Delta represents the number of bytes in a row of
the BltBuffer.
@retval EFI_INVALID_PARAMETER Invalid parameter passed in
@retval EFI_SUCCESS Blt operation success
**/
EFI_STATUS
EFIAPI
FbGopGraphicsOutputVbeBlt (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta
);
/**
Grahpics Output protocol instance to block transfer for VGA device.
@param This Pointer to Grahpics Output protocol instance
@param BltBuffer The data to transfer to screen
@param BltOperation The operation to perform
@param SourceX The X coordinate of the source for BltOperation
@param SourceY The Y coordinate of the source for BltOperation
@param DestinationX The X coordinate of the destination for
BltOperation
@param DestinationY The Y coordinate of the destination for
BltOperation
@param Width The width of a rectangle in the blt rectangle in
pixels
@param Height The height of a rectangle in the blt rectangle in
pixels
@param Delta Not used for EfiBltVideoFill and
EfiBltVideoToVideo operation. If a Delta of 0 is
used, the entire BltBuffer will be operated on. If
a subrectangle of the BltBuffer is used, then
Delta represents the number of bytes in a row of
the BltBuffer.
@retval EFI_INVALID_PARAMETER Invalid parameter passed in
@retval EFI_SUCCESS Blt operation success
**/
EFI_STATUS
EFIAPI
FbGopGraphicsOutputVgaBlt (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta
);
/**
Install child handles if the Handle supports MBR format.
@param This Calling context.
@param ParentHandle Parent Handle
@param ParentPciIo Parent PciIo interface
@param ParentLegacyBios Parent LegacyBios interface
@param ParentDevicePath Parent Device Path
@param RemainingDevicePath Remaining Device Path
@retval EFI_SUCCESS If a child handle was added
@retval other A child handle was not added
**/
EFI_STATUS
FbGopChildHandleInstall (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ParentHandle,
IN EFI_PCI_IO_PROTOCOL *ParentPciIo,
IN VOID *ParentLegacyBios,
IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Deregister an video child handle and free resources.
@param This Protocol instance pointer.
@param Controller Video controller handle
@param Handle Video child handle
@return EFI_STATUS
**/
EFI_STATUS
FbGopChildHandleUninstall (
EFI_DRIVER_BINDING_PROTOCOL *This,
EFI_HANDLE Controller,
EFI_HANDLE Handle
);
/**
Release resource for biso video instance.
@param FbGopPrivate Video child device private data structure
**/
VOID
FbGopDeviceReleaseResource (
FB_VIDEO_DEV *FbGopPrivate
);
/**
Check if all video child handles have been uninstalled.
@param Controller Video controller handle
@return TRUE Child handles exist.
@return FALSE All video child handles have been uninstalled.
**/
BOOLEAN
HasChildHandle (
IN EFI_HANDLE Controller
);
#endif