-/*++\r
+/** @file\r
\r
Copyright (c) 2006 - 2007, Intel Corporation \r
All rights reserved. This program and the accompanying materials \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
\r
-Module Name:\r
+**/\r
\r
- BiosVideo.h\r
- \r
-Abstract: \r
-\r
-Revision History\r
---*/\r
-\r
-#ifndef _BIOS_UGA_H\r
-#define _BIOS_UGA_H\r
+#ifndef _BIOS_GRAPHICS_OUTPUT_H\r
+#define _BIOS_GRAPHICS_OUTPUT_H\r
\r
#include <Uefi.h>\r
\r
#include <Protocol/UgaDraw.h>\r
#include <Protocol/VgaMiniPort.h>\r
#include <Protocol/Legacy8259.h>\r
-#include <Protocol/LegacyBios.h>\r
+#include <Protocol/EdidActive.h>\r
+#include <Protocol/EdidDiscovered.h>\r
+#include <Protocol/DevicePath.h>\r
\r
#include <Library/UefiLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/BaseMemoryLib.h>\r
+#include <Library/DevicePathLib.h>\r
\r
#include <IndustryStandard/Pci22.h>\r
\r
#include "VesaBiosExtensions.h"\r
-//\r
-// Driver Produced Protocol Prototypes\r
-//\r
-//#include EFI_PROTOCOL_DEFINITION (DriverBinding)\r
-//#include EFI_PROTOCOL_DEFINITION (ComponentName)\r
-//#include EFI_PROTOCOL_DEFINITION (ComponentName2)\r
-//#include EFI_PROTOCOL_DEFINITION (UgaDraw)\r
-//#include EFI_PROTOCOL_DEFINITION (VgaMiniPort)\r
\r
//\r
// Packed format support: The number of bits reserved for each of the colors and the actual\r
} BIOS_VIDEO_COLOR_PLACEMENT;\r
\r
//\r
-// BIOS UGA Draw Graphical Mode Data\r
+// BIOS Graphics Output Graphical Mode Data\r
//\r
typedef struct {\r
UINT16 VbeModeNumber;\r
UINT16 BytesPerScanLine;\r
VOID *LinearFrameBuffer;\r
+ UINTN FrameBufferSize;\r
UINT32 HorizontalResolution;\r
UINT32 VerticalResolution;\r
- UINT32 ColorDepth;\r
UINT32 RefreshRate;\r
UINT32 BitsPerPixel;\r
BIOS_VIDEO_COLOR_PLACEMENT Red;\r
BIOS_VIDEO_COLOR_PLACEMENT Green;\r
BIOS_VIDEO_COLOR_PLACEMENT Blue;\r
+ BIOS_VIDEO_COLOR_PLACEMENT Reserved;\r
+ EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;\r
+ EFI_PIXEL_BITMASK PixelBitMask;\r
} BIOS_VIDEO_MODE_DATA;\r
\r
//\r
-// BIOS UGA Device Structure\r
+// BIOS video child handle private data Structure\r
//\r
-#define BIOS_VIDEO_DEV_SIGNATURE SIGNATURE_32 ('B', 'V', 'M', 'p')\r
+#define BIOS_VIDEO_DEV_SIGNATURE SIGNATURE_32 ('B', 'V', 'M', 'p')\r
\r
typedef struct {\r
UINTN Signature;\r
EFI_HANDLE Handle;\r
\r
//\r
- // Consumed Protocols\r
+ // Consumed Protocols inherited from parent controller.\r
//\r
EFI_PCI_IO_PROTOCOL *PciIo;\r
- //EFI_LEGACY_BIOS_THUNK_PROTOCOL *LegacyBios;\r
-\r
+ EFI_LEGACY_8259_PROTOCOL *Legacy8259;\r
+ THUNK_CONTEXT *ThunkContext;\r
+ \r
//\r
// Produced Protocols\r
//\r
- EFI_UGA_DRAW_PROTOCOL UgaDraw;\r
+ EFI_GRAPHICS_OUTPUT_PROTOCOL GraphicsOutput;\r
+ EFI_EDID_DISCOVERED_PROTOCOL EdidDiscovered;\r
+ EFI_EDID_ACTIVE_PROTOCOL EdidActive;\r
EFI_VGA_MINI_PORT_PROTOCOL VgaMiniPort;\r
\r
//\r
// General fields\r
//\r
- EFI_EVENT ExitBootServicesEvent;\r
BOOLEAN VgaCompatible;\r
- BOOLEAN ProduceUgaDraw;\r
+ BOOLEAN ProduceGraphicsOutput;\r
\r
//\r
- // UGA Draw related fields\r
+ // Graphics Output Protocol related fields\r
//\r
BOOLEAN HardwareNeedsStarting;\r
- UINTN CurrentMode;\r
- UINTN MaxMode;\r
BIOS_VIDEO_MODE_DATA *ModeData;\r
UINT8 *LineBuffer;\r
- EFI_UGA_PIXEL *VbeFrameBuffer;\r
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;\r
UINT8 *VgaFrameBuffer;\r
\r
//\r
EFI_PHYSICAL_ADDRESS PagesBelow1MB; // Buffer for all VBE Information Blocks\r
VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK *VbeInformationBlock; // 0x200 bytes. Must be allocated below 1MB\r
VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK *VbeModeInformationBlock; // 0x100 bytes. Must be allocated below 1MB\r
+ VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK *VbeEdidDataBlock; // 0x80 bytes. Must be allocated below 1MB\r
VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK *VbeCrtcInformationBlock; // 59 bytes. Must be allocated below 1MB\r
UINTN VbeSaveRestorePages; // Number of 4KB pages in VbeSaveRestoreBuffer\r
EFI_PHYSICAL_ADDRESS VbeSaveRestoreBuffer; // Must be allocated below 1MB\r
EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
} BIOS_VIDEO_DEV;\r
\r
-#define BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS(a) CR (a, BIOS_VIDEO_DEV, UgaDraw, BIOS_VIDEO_DEV_SIGNATURE)\r
-\r
+#define BIOS_VIDEO_DEV_FROM_PCI_IO_THIS(a) CR (a, BIOS_VIDEO_DEV, PciIo, BIOS_VIDEO_DEV_SIGNATURE)\r
+#define BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS(a) CR (a, BIOS_VIDEO_DEV, GraphicsOutput, BIOS_VIDEO_DEV_SIGNATURE)\r
#define BIOS_VIDEO_DEV_FROM_VGA_MINI_PORT_THIS(a) CR (a, BIOS_VIDEO_DEV, VgaMiniPort, BIOS_VIDEO_DEV_SIGNATURE)\r
\r
+#define GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER 0xffff\r
+\r
+#define EFI_SEGMENT(_Adr) (UINT16) ((UINT16) (((UINTN) (_Adr)) >> 4) & 0xf000)\r
+#define EFI_OFFSET(_Adr) (UINT16) (((UINT16) ((UINTN) (_Adr))) & 0xffff)\r
+\r
//\r
// Global Variables\r
//\r
//\r
// Driver Binding Protocol functions\r
//\r
+/**\r
+ Test to see if Bios Video could be supported on the Controller.\r
+\r
+ @param This Pointer to driver binding protocol\r
+ @param Controller Controller handle to connect\r
+ @param RemainingDevicePath A pointer to the remaining portion of a device path\r
+\r
+ @retval EFI_SUCCESS This driver supports this device.\r
+ @retval other This driver does not support this device.\r
+\r
+**/\r
EFI_STATUS\r
EFIAPI\r
BiosVideoDriverBindingSupported (\r
IN EFI_HANDLE Controller,\r
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
)\r
-/*++\r
- \r
- Routine Description:\r
+;\r
\r
- Supported.\r
- \r
- Arguments:\r
+/**\r
+ Install Graphics Output Protocol onto VGA device handles\r
\r
- This - Pointer to driver binding protocol\r
- Controller - Controller handle to connect\r
- RemainingDevicePath - A pointer to the remaining portion of a device path\r
- \r
- \r
- Returns:\r
+ @param This Pointer to driver binding protocol\r
+ @param Controller Controller handle to connect\r
+ @param RemainingDevicePath A pointer to the remaining portion of a device path\r
\r
- EFI_STATUS - EFI_SUCCESS:This controller can be managed by this driver,\r
- Otherwise, this controller cannot be managed by this driver\r
- \r
---*/\r
-;\r
+ @return EFI_STATUS\r
\r
+**/\r
EFI_STATUS\r
EFIAPI\r
BiosVideoDriverBindingStart (\r
IN EFI_HANDLE Controller,\r
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
)\r
-/*++\r
- \r
- Routine Description:\r
+;\r
\r
- Install UGA Draw Protocol onto VGA device handles\r
- \r
- Arguments:\r
+/**\r
+ Stop this driver on Controller \r
\r
- This - Pointer to driver binding protocol\r
- Controller - Controller handle to connect\r
- RemainingDevicePath - A pointer to the remaining portion of a device path\r
- \r
- Returns:\r
+ @param This Protocol instance pointer.\r
+ @param Controller Handle of device to stop driver on\r
+ @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r
+ children is zero stop the entire bus driver.\r
+ @param ChildHandleBuffer List of Child Handles to Stop.\r
\r
- EFI_STATUS\r
- \r
---*/\r
-;\r
+ @retval EFI_SUCCESS This driver is removed Controller.\r
+ @retval other This driver was not removed from this device.\r
\r
+**/\r
EFI_STATUS\r
EFIAPI\r
BiosVideoDriverBindingStop (\r
IN UINTN NumberOfChildren,\r
IN EFI_HANDLE *ChildHandleBuffer\r
)\r
-/*++\r
- \r
- Routine Description:\r
-\r
- Stop.\r
- \r
- Arguments:\r
-\r
- This - Pointer to driver binding protocol\r
- Controller - Controller handle to connect\r
- NumberOfChilren - Number of children handle created by this driver\r
- ChildHandleBuffer - Buffer containing child handle created\r
- \r
- Returns:\r
-\r
- EFI_SUCCESS - Driver disconnected successfully from controller\r
- EFI_UNSUPPORTED - Cannot find BIOS_VIDEO_DEV structure\r
- \r
---*/\r
;\r
\r
//\r
// Private worker functions\r
//\r
+/**\r
+ Check for VBE device\r
+\r
+ @param BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure\r
+\r
+ @retval EFI_SUCCESS VBE device found\r
+\r
+**/\r
EFI_STATUS\r
BiosVideoCheckForVbe (\r
BIOS_VIDEO_DEV *BiosVideoPrivate\r
)\r
-/*++\r
- \r
- Routine Description:\r
-\r
- Check for VBE device \r
- \r
- Arguments:\r
- \r
- BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure\r
- \r
- Returns:\r
- \r
- EFI_SUCCESS - VBE device found\r
- \r
---*/\r
;\r
\r
+/**\r
+ Check for VGA device\r
+\r
+ @param BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure\r
+\r
+ @retval EFI_SUCCESS Standard VGA device found\r
+**/\r
+\r
EFI_STATUS\r
BiosVideoCheckForVga (\r
BIOS_VIDEO_DEV *BiosVideoPrivate\r
)\r
-/*++\r
- \r
- Routine Description:\r
-\r
- Check for VGA device\r
- \r
- Arguments:\r
- \r
- BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure\r
- \r
- Returns:\r
- \r
- EFI_SUCCESS - Standard VGA device found\r
- \r
---*/\r
;\r
\r
-//\r
-// BIOS UGA Draw Protocol functions\r
-//\r
-EFI_STATUS\r
-EFIAPI\r
-BiosVideoUgaDrawGetMode (\r
- IN EFI_UGA_DRAW_PROTOCOL *This,\r
- OUT UINT32 *HorizontalResolution,\r
- OUT UINT32 *VerticalResolution,\r
- OUT UINT32 *ColorDepth,\r
- OUT UINT32 *RefreshRate\r
- )\r
-/*++\r
+/**\r
+ Collect the resource from destroyed bios video device.\r
\r
-Routine Description:\r
+ @param BiosVideoPrivate Video child device private data structure\r
\r
- UGA protocol interface to get video mode\r
+**/\r
+VOID\r
+BiosVideoDeviceReleaseResource (\r
+ BIOS_VIDEO_DEV *BiosVideoChildPrivate\r
+ )\r
+;\r
\r
-Arguments:\r
+//\r
+// BIOS Graphics Output Protocol functions\r
+//\r
+/**\r
\r
- This - Pointer to UGA draw protocol instance\r
- HorizontalResolution - Horizontal Resolution, in pixels\r
- VerticalResolution - Vertical Resolution, in pixels\r
- ColorDepth - Bit number used to represent color value of a pixel \r
- RefreshRate - Refresh rate, in Hertz\r
+ Graphics Output protocol interface to get video mode\r
\r
-Returns:\r
\r
- EFI_DEVICE_ERROR - Hardware need starting\r
- EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- EFI_SUCCESS - Video mode query successfully\r
+ @param This - Protocol instance pointer.\r
+ @param ModeNumber - The mode number to return information on.\r
+ @param SizeOfInfo - A pointer to the size, in bytes, of the Info buffer.\r
+ @param Info - Caller allocated buffer that returns information about ModeNumber.\r
\r
---*/\r
-;\r
+ @return EFI_SUCCESS - Mode information returned.\r
+ EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.\r
+ EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()\r
+ EFI_INVALID_PARAMETER - One of the input args was NULL.\r
\r
+**/\r
EFI_STATUS\r
EFIAPI\r
-BiosVideoUgaDrawSetMode (\r
- IN EFI_UGA_DRAW_PROTOCOL *This,\r
- IN UINT32 HorizontalResolution,\r
- IN UINT32 VerticalResolution,\r
- IN UINT32 ColorDepth,\r
- IN UINT32 RefreshRate\r
+BiosVideoGraphicsOutputQueryMode (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r
+ IN UINT32 ModeNumber,\r
+ OUT UINTN *SizeOfInfo,\r
+ OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- UGA draw protocol interface to set video mode\r
+;\r
\r
-Arguments:\r
+/**\r
\r
- This - Pointer to UGA draw protocol instance\r
- HorizontalResolution - Horizontal Resolution, in pixels\r
- VerticalResolution - Vertical Resolution, in pixels\r
- ColorDepth - Bit number used to represent color value of a pixel \r
- RefreshRate - Refresh rate, in Hertz\r
+ Graphics Output protocol interface to set video mode\r
\r
-Returns:\r
\r
- EFI_DEVICE_ERROR - Device error\r
- EFI_SUCCESS - Video mode set successfully\r
- EFI_UNSUPPORTED - Cannot support this video mode\r
+ @param This - Protocol instance pointer.\r
+ @param ModeNumber - The mode number to be set.\r
\r
---*/\r
-;\r
+ @return EFI_SUCCESS - Graphics mode was changed.\r
+ EFI_DEVICE_ERROR - The device had an error and could not complete the request.\r
+ EFI_UNSUPPORTED - ModeNumber is not supported by this device.\r
\r
+**/\r
EFI_STATUS\r
EFIAPI\r
-BiosVideoUgaDrawVbeBlt (\r
- IN EFI_UGA_DRAW_PROTOCOL *This,\r
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL\r
- IN EFI_UGA_BLT_OPERATION BltOperation,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height,\r
- IN UINTN Delta\r
+BiosVideoGraphicsOutputSetMode (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,\r
+ IN UINT32 ModeNumber\r
)\r
-/*++\r
-\r
-Routine Description:\r
+;\r
\r
- UGA draw protocol instance to block transfer for VBE device\r
+/**\r
\r
-Arguments:\r
+ Graphics Output protocol instance to block transfer for VBE device\r
\r
- This - Pointer to UGA draw protocol instance\r
- BltBuffer - The data to transfer to screen\r
- BltOperation - The operation to perform\r
- SourceX - The X coordinate of the source for BltOperation\r
- SourceY - The Y coordinate of the source for BltOperation\r
- DestinationX - The X coordinate of the destination for BltOperation\r
- DestinationY - The Y coordinate of the destination for BltOperation\r
- Width - The width of a rectangle in the blt rectangle in pixels\r
- Height - The height of a rectangle in the blt rectangle in pixels\r
- Delta - Not used for EfiUgaVideoFill and EfiUgaVideoToVideo operation.\r
- If a Delta of 0 is used, the entire BltBuffer will be operated on.\r
- If a subrectangle of the BltBuffer is used, then Delta represents \r
- the number of bytes in a row of the BltBuffer.\r
\r
-Returns:\r
+ @param This - Pointer to Graphics Output protocol instance\r
+ @param BltBuffer - The data to transfer to screen\r
+ @param BltOperation - The operation to perform\r
+ @param SourceX - The X coordinate of the source for BltOperation\r
+ @param SourceY - The Y coordinate of the source for BltOperation\r
+ @param DestinationX - The X coordinate of the destination for BltOperation\r
+ @param DestinationY - The Y coordinate of the destination for BltOperation\r
+ @param Width - The width of a rectangle in the blt rectangle in pixels\r
+ @param Height - The height of a rectangle in the blt rectangle in pixels\r
+ @param Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.\r
+ If a Delta of 0 is used, the entire BltBuffer will be operated on.\r
+ If a subrectangle of the BltBuffer is used, then Delta represents\r
+ the number of bytes in a row of the BltBuffer.\r
\r
- EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- EFI_SUCCESS - Blt operation success\r
+ @return EFI_INVALID_PARAMETER - Invalid parameter passed in\r
+ EFI_SUCCESS - Blt operation success\r
\r
---*/\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+BiosVideoGraphicsOutputVbeBlt (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r
+ IN UINTN SourceX,\r
+ IN UINTN SourceY,\r
+ IN UINTN DestinationX,\r
+ IN UINTN DestinationY,\r
+ IN UINTN Width,\r
+ IN UINTN Height,\r
+ IN UINTN Delta\r
+ )\r
;\r
\r
+/**\r
+ Grahpics Output protocol instance to block transfer for VGA device\r
+\r
+ @param This Pointer to Grahpics Output protocol instance\r
+ @param BltBuffer The data to transfer to screen\r
+ @param BltOperation The operation to perform\r
+ @param SourceX The X coordinate of the source for BltOperation\r
+ @param SourceY The Y coordinate of the source for BltOperation\r
+ @param DestinationX The X coordinate of the destination for BltOperation\r
+ @param DestinationY The Y coordinate of the destination for BltOperation\r
+ @param Width The width of a rectangle in the blt rectangle in pixels\r
+ @param Height The height of a rectangle in the blt rectangle in pixels\r
+ @param Delta Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.\r
+ If a Delta of 0 is used, the entire BltBuffer will be operated on.\r
+ If a subrectangle of the BltBuffer is used, then Delta represents\r
+ the number of bytes in a row of the BltBuffer.\r
+\r
+ @retval EFI_INVALID_PARAMETER Invalid parameter passed in\r
+ @retval EFI_SUCCESS Blt operation success\r
+\r
+**/\r
EFI_STATUS\r
EFIAPI\r
-BiosVideoUgaDrawVgaBlt (\r
- IN EFI_UGA_DRAW_PROTOCOL *This,\r
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL\r
- IN EFI_UGA_BLT_OPERATION BltOperation,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height,\r
- IN UINTN Delta\r
+BiosVideoGraphicsOutputVgaBlt (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r
+ IN UINTN SourceX,\r
+ IN UINTN SourceY,\r
+ IN UINTN DestinationX,\r
+ IN UINTN DestinationY,\r
+ IN UINTN Width,\r
+ IN UINTN Height,\r
+ IN UINTN Delta\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- UGA draw protocol instance to block transfer for VGA device\r
-\r
-Arguments:\r
-\r
- This - Pointer to UGA draw protocol instance\r
- BltBuffer - The data to transfer to screen\r
- BltOperation - The operation to perform\r
- SourceX - The X coordinate of the source for BltOperation\r
- SourceY - The Y coordinate of the source for BltOperation\r
- DestinationX - The X coordinate of the destination for BltOperation\r
- DestinationY - The Y coordinate of the destination for BltOperation\r
- Width - The width of a rectangle in the blt rectangle in pixels\r
- Height - The height of a rectangle in the blt rectangle in pixels\r
- Delta - Not used for EfiUgaVideoFill and EfiUgaVideoToVideo operation.\r
- If a Delta of 0 is used, the entire BltBuffer will be operated on.\r
- If a subrectangle of the BltBuffer is used, then Delta represents \r
- the number of bytes in a row of the BltBuffer.\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- EFI_SUCCESS - Blt operation success\r
-\r
---*/\r
;\r
\r
//\r
// BIOS VGA Mini Port Protocol functions\r
//\r
+/**\r
+ VgaMiniPort protocol interface to set mode\r
+\r
+ @param This Pointer to VgaMiniPort protocol instance\r
+ @param ModeNumber The index of the mode\r
+\r
+ @retval EFI_UNSUPPORTED The requested mode is not supported\r
+ @retval EFI_SUCCESS The requested mode is set successfully\r
+\r
+**/\r
EFI_STATUS\r
EFIAPI\r
BiosVideoVgaMiniPortSetMode (\r
IN EFI_VGA_MINI_PORT_PROTOCOL *This,\r
IN UINTN ModeNumber\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- VgaMiniPort protocol interface to set mode\r
-\r
-Arguments:\r
-\r
- This - Pointer to VgaMiniPort protocol instance\r
- ModeNumber - The index of the mode\r
-\r
-Returns:\r
-\r
- EFI_UNSUPPORTED - The requested mode is not supported\r
- EFI_SUCCESS - The requested mode is set successfully\r
-\r
---*/\r
;\r
\r
+/**\r
+ Judge whether this device is VGA device.\r
+\r
+ @param PciIo Parent PciIo protocol instance pointer\r
\r
+ @retval TRUE Is vga device\r
+ @retval FALSE Is no vga device\r
+**/\r
BOOLEAN\r
BiosVideoIsVga (\r
IN EFI_PCI_IO_PROTOCOL *PciIo\r
\r
#define VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER 0x08\r
\r
+/**\r
+ Initialize legacy environment for BIOS INI caller.\r
+ \r
+ @param ThunkContext the instance pointer of THUNK_CONTEXT\r
+**/\r
+VOID\r
+InitializeBiosIntCaller (\r
+ THUNK_CONTEXT *ThunkContext\r
+ );\r
+ \r
+/**\r
+ Initialize interrupt redirection code and entries, because\r
+ IDT Vectors 0x68-0x6f must be redirected to IDT Vectors 0x08-0x0f.\r
+ Or the interrupt will lost when we do thunk.\r
+ NOTE: We do not reset 8259 vector base, because it will cause pending\r
+ interrupt lost.\r
+ \r
+ @param Legacy8259 Instance pointer for EFI_LEGACY_8259_PROTOCOL.\r
+ \r
+**/ \r
+VOID\r
+InitializeInterruptRedirection (\r
+ IN EFI_LEGACY_8259_PROTOCOL *Legacy8259\r
+ );\r
+ \r
+/**\r
+ Thunk to 16-bit real mode and execute a software interrupt with a vector \r
+ of BiosInt. Regs will contain the 16-bit register context on entry and \r
+ exit.\r
+ \r
+ @param This Protocol instance pointer.\r
+ @param BiosInt Processor interrupt vector to invoke\r
+ @param Reg Register contexted passed into (and returned) from thunk to 16-bit mode\r
+ \r
+ @retval TRUE Thunk completed, and there were no BIOS errors in the target code.\r
+ See Regs for status.\r
+ @retval FALSE There was a BIOS erro in the target code. \r
+**/ \r
+BOOLEAN\r
+EFIAPI\r
+LegacyBiosInt86 (\r
+ IN BIOS_VIDEO_DEV *BiosDev,\r
+ IN UINT8 BiosInt,\r
+ IN IA32_REGISTER_SET *Regs\r
+ ); \r
+ \r
#endif\r
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