/** @file
Copyright (c) 2006 - 2012, 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 _BIOS_GRAPHICS_OUTPUT_H_
#define _BIOS_GRAPHICS_OUTPUT_H_
#include <FrameworkDxe.h>
#include <Protocol/PciIo.h>
#include <Protocol/EdidActive.h>
#include <Protocol/DevicePath.h>
#include <Protocol/EdidDiscovered.h>
#include <Protocol/LegacyBios.h>
#include <Protocol/VgaMiniPort.h>
#include <Protocol/GraphicsOutput.h>
#include <Protocol/EdidOverride.h>
#include <Guid/StatusCodeDataTypeId.h>
#include <Guid/LegacyBios.h>
#include <Guid/EventGroup.h>
#include <Library/PcdLib.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>
#include "VesaBiosExtensions.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
} BIOS_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;
BIOS_VIDEO_COLOR_PLACEMENT Red;
BIOS_VIDEO_COLOR_PLACEMENT Green;
BIOS_VIDEO_COLOR_PLACEMENT Blue;
BIOS_VIDEO_COLOR_PLACEMENT Reserved;
EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
EFI_PIXEL_BITMASK PixelBitMask;
} BIOS_VIDEO_MODE_DATA;
//
// BIOS video child handle private data Structure
//
#define BIOS_VIDEO_DEV_SIGNATURE SIGNATURE_32 ('B', 'V', 'M', 'p')
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
//
// Consumed Protocols
//
EFI_PCI_IO_PROTOCOL *PciIo;
EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;
//
// Produced Protocols
//
EFI_GRAPHICS_OUTPUT_PROTOCOL GraphicsOutput;
EFI_EDID_DISCOVERED_PROTOCOL EdidDiscovered;
EFI_EDID_ACTIVE_PROTOCOL EdidActive;
EFI_VGA_MINI_PORT_PROTOCOL VgaMiniPort;
//
// General fields
//
BOOLEAN VgaCompatible;
BOOLEAN ProduceGraphicsOutput;
//
// Graphics Output Protocol related fields
//
BOOLEAN HardwareNeedsStarting;
UINTN CurrentMode;
UINTN MaxMode;
BIOS_VIDEO_MODE_DATA *ModeData;
UINT8 *LineBuffer;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;
UINT8 *VgaFrameBuffer;
//
// VESA Bios Extensions related fields
//
UINTN NumberOfPagesBelow1MB; // Number of 4KB pages in PagesBelow1MB
EFI_PHYSICAL_ADDRESS PagesBelow1MB; // Buffer for all VBE Information Blocks
VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK *VbeInformationBlock; // 0x200 bytes. Must be allocated below 1MB
VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK *VbeModeInformationBlock; // 0x100 bytes. Must be allocated below 1MB
VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK *VbeEdidDataBlock; // 0x80 bytes. Must be allocated below 1MB
VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK *VbeCrtcInformationBlock; // 59 bytes. Must be allocated below 1MB
UINTN VbeSaveRestorePages; // Number of 4KB pages in VbeSaveRestoreBuffer
EFI_PHYSICAL_ADDRESS VbeSaveRestoreBuffer; // Must be allocated below 1MB
//
// Status code
//
EFI_DEVICE_PATH_PROTOCOL *GopDevicePath;
EFI_EVENT ExitBootServicesEvent;
} BIOS_VIDEO_DEV;
#define BIOS_VIDEO_DEV_FROM_PCI_IO_THIS(a) CR (a, BIOS_VIDEO_DEV, PciIo, BIOS_VIDEO_DEV_SIGNATURE)
#define BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS(a) CR (a, BIOS_VIDEO_DEV, GraphicsOutput, BIOS_VIDEO_DEV_SIGNATURE)
#define BIOS_VIDEO_DEV_FROM_VGA_MINI_PORT_THIS(a) CR (a, BIOS_VIDEO_DEV, VgaMiniPort, BIOS_VIDEO_DEV_SIGNATURE)
#define GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER 0xffff
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gBiosVideoDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gBiosVideoComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gBiosVideoComponentName2;
//
// 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
BiosVideoDriverBindingSupported (
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
BiosVideoDriverBindingStart (
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 BIOS_VIDEO_DEV structure
**/
EFI_STATUS
EFIAPI
BiosVideoDriverBindingStop (
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 BiosVideoPrivate Pointer to BIOS_VIDEO_DEV structure
@retval EFI_SUCCESS VBE device found
**/
EFI_STATUS
BiosVideoCheckForVbe (
IN OUT BIOS_VIDEO_DEV *BiosVideoPrivate
);
/**
Check for VGA device.
@param BiosVideoPrivate Pointer to BIOS_VIDEO_DEV structure
@retval EFI_SUCCESS Standard VGA device found
**/
EFI_STATUS
BiosVideoCheckForVga (
IN OUT BIOS_VIDEO_DEV *BiosVideoPrivate
);
/**
Release resource for biso video instance.
@param BiosVideoPrivate Video child device private data structure
**/
VOID
BiosVideoDeviceReleaseResource (
BIOS_VIDEO_DEV *BiosVideoPrivate
);
//
// 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
BiosVideoGraphicsOutputQueryMode (
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
BiosVideoGraphicsOutputSetMode (
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
BiosVideoGraphicsOutputVbeBlt (
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
BiosVideoGraphicsOutputVgaBlt (
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
);
//
// BIOS VGA Mini Port Protocol functions
//
/**
VgaMiniPort protocol interface to set mode.
@param This Pointer to VgaMiniPort protocol instance
@param ModeNumber The index of the mode
@retval EFI_UNSUPPORTED The requested mode is not supported
@retval EFI_SUCCESS The requested mode is set successfully
**/
EFI_STATUS
EFIAPI
BiosVideoVgaMiniPortSetMode (
IN EFI_VGA_MINI_PORT_PROTOCOL *This,
IN UINTN ModeNumber
);
/**
Event handler for Exit Boot Service.
@param Event The event that be siganlled when exiting boot service.
@param Context Pointer to instance of BIOS_VIDEO_DEV.
**/
VOID
EFIAPI
BiosVideoNotifyExitBootServices (
IN EFI_EVENT Event,
IN VOID *Context
);
//
// Standard VGA Definitions
//
#define VGA_HORIZONTAL_RESOLUTION 640
#define VGA_VERTICAL_RESOLUTION 480
#define VGA_NUMBER_OF_BIT_PLANES 4
#define VGA_PIXELS_PER_BYTE 8
#define VGA_BYTES_PER_SCAN_LINE (VGA_HORIZONTAL_RESOLUTION / VGA_PIXELS_PER_BYTE)
#define VGA_BYTES_PER_BIT_PLANE (VGA_VERTICAL_RESOLUTION * VGA_BYTES_PER_SCAN_LINE)
#define VGA_GRAPHICS_CONTROLLER_ADDRESS_REGISTER 0x3ce
#define VGA_GRAPHICS_CONTROLLER_DATA_REGISTER 0x3cf
#define VGA_GRAPHICS_CONTROLLER_SET_RESET_REGISTER 0x00
#define VGA_GRAPHICS_CONTROLLER_ENABLE_SET_RESET_REGISTER 0x01
#define VGA_GRAPHICS_CONTROLLER_COLOR_COMPARE_REGISTER 0x02
#define VGA_GRAPHICS_CONTROLLER_DATA_ROTATE_REGISTER 0x03
#define VGA_GRAPHICS_CONTROLLER_FUNCTION_REPLACE 0x00
#define VGA_GRAPHICS_CONTROLLER_FUNCTION_AND 0x08
#define VGA_GRAPHICS_CONTROLLER_FUNCTION_OR 0x10
#define VGA_GRAPHICS_CONTROLLER_FUNCTION_XOR 0x18
#define VGA_GRAPHICS_CONTROLLER_READ_MAP_SELECT_REGISTER 0x04
#define VGA_GRAPHICS_CONTROLLER_MODE_REGISTER 0x05
#define VGA_GRAPHICS_CONTROLLER_READ_MODE_0 0x00
#define VGA_GRAPHICS_CONTROLLER_READ_MODE_1 0x08
#define VGA_GRAPHICS_CONTROLLER_WRITE_MODE_0 0x00
#define VGA_GRAPHICS_CONTROLLER_WRITE_MODE_1 0x01
#define VGA_GRAPHICS_CONTROLLER_WRITE_MODE_2 0x02
#define VGA_GRAPHICS_CONTROLLER_WRITE_MODE_3 0x03
#define VGA_GRAPHICS_CONTROLLER_MISCELLANEOUS_REGISTER 0x06
#define VGA_GRAPHICS_CONTROLLER_COLOR_DONT_CARE_REGISTER 0x07
#define VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER 0x08
/**
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
BiosVideoChildHandleInstall (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ParentHandle,
IN EFI_PCI_IO_PROTOCOL *ParentPciIo,
IN EFI_LEGACY_BIOS_PROTOCOL *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
BiosVideoChildHandleUninstall (
EFI_DRIVER_BINDING_PROTOCOL *This,
EFI_HANDLE Controller,
EFI_HANDLE Handle
);
/**
Release resource for biso video instance.
@param BiosVideoPrivate Video child device private data structure
**/
VOID
BiosVideoDeviceReleaseResource (
BIOS_VIDEO_DEV *BiosVideoPrivate
);
/**
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