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audk/IntelFrameworkModulePkg/Universal/Console/VgaClassDxe/VgaClass.h

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/** @file
Internal include file of the VGA Class Driver.
Copyright (c) 2006 - 2009, Intel Corporation
All rights reserved. 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 _VGA_CLASS_H__
#define _VGA_CLASS_H__
#include <PiDxe.h>
#include <FrameworkDxe.h>
#include <Protocol/SimpleTextOut.h>
#include <Protocol/PciIo.h>
#include <Protocol/VgaMiniPort.h>
#include <Protocol/DevicePath.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <IndustryStandard/Pci22.h>
//
// Structure for tuple containing mapping among uniocde, PC Ansi and ASCII code.
//
typedef struct {
CHAR16 Unicode;
CHAR8 PcAnsi;
CHAR8 Ascii;
} UNICODE_TO_CHAR;
//
// VGA specific registers
//
#define CRTC_CURSOR_START 0xA
#define CRTC_CURSOR_END 0xB
#define CRTC_CURSOR_LOCATION_HIGH 0xE
#define CRTC_CURSOR_LOCATION_LOW 0xF
#define EFI_MAX_ATTRIBUTE 0x7f
//
// VGA Class Device Structure
//
#define VGA_CLASS_DEV_SIGNATURE SIGNATURE_32 ('V', 'G', 'A', 'C')
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL SimpleTextOut;
EFI_SIMPLE_TEXT_OUTPUT_MODE SimpleTextOutputMode;
EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;
EFI_PCI_IO_PROTOCOL *PciIo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
} VGA_CLASS_DEV;
#define VGA_CLASS_DEV_FROM_THIS(a) CR (a, VGA_CLASS_DEV, SimpleTextOut, VGA_CLASS_DEV_SIGNATURE)
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gVgaClassDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gVgaClassComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gVgaClassComponentName2;
//
// Driver Binding Protocol functions
//
/**
Tests to see if this driver supports a given controller.
This function implments EFI_DRIVER_BINDING_PROTOCOL.Supported().
It Checks if this driver supports the controller specified. Any Controller
with VgaMiniPort Protocol and Pci I/O protocol can be supported.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle Handle of device to test
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device.
@retval EFI_ALREADY_STARTED This driver is already running on this device.
@retval EFI_UNSUPPORTED This driver does not support this device.
**/
EFI_STATUS
EFIAPI
VgaClassDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
);
/**
Starts the device controller.
This function implments EFI_DRIVER_BINDING_PROTOCOL.Start().
It starts the device specified by Controller with the driver based on PCI I/O Protocol
and VgaMiniPort Protocol. It creates context for device instance and install EFI_SIMPLE_TEXT_OUT_PROTOCOL.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS The device was started.
@retval other Fail to start the device.
**/
EFI_STATUS
EFIAPI
VgaClassDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
);
/**
Starts the device controller.
This function implments EFI_DRIVER_BINDING_PROTOCOL.Stop().
It stops this driver on Controller. Support stoping any child handles
created by this driver.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle A handle to the device being stopped.
@param NumberOfChildren The number of child device handles in ChildHandleBuffer.
@param ChildHandleBuffer An array of child handles to be freed.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
VgaClassDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
);
//
// EFI Component Name Functions
//
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 3066 or ISO 639-2 language code format.
@param DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
VgaClassComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 3066 or ISO 639-2 language code format.
@param ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
VgaClassComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
//
// Simple Text Output Protocol functions
//
/**
Resets the text output device hardware.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset().
It resets the text output device hardware. The cursor position is set to (0, 0),
and the screen is cleared to the default background color for the output device.
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
@retval EFI_SUCCESS The text output device was reset.
@retval EFI_DEVICE_ERROR The text output device is not functioning correctly and could not be reset.
**/
EFI_STATUS
EFIAPI
VgaClassReset (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Writes a Unicode string to the output device.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString().
It writes a Unicode string to the output device. This is the most basic output mechanism
on an output device.
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param String The Null-terminated Unicode string to be displayed on the output device(s).
@retval EFI_SUCCESS The string was output to the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to output the text.
@retval EFI_UNSUPPORTED The output device<63>s mode is not currently in a defined text mode.
@retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the characters in
the Unicode string could not be rendered and were skipped.
**/
EFI_STATUS
EFIAPI
VgaClassOutputString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *String
);
/**
Verifies that all characters in a Unicode string can be output to the target device.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.TestString().
It verifies that all characters in a Unicode string can be output to the target device.
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param String The Null-terminated Unicode string to be examined for the output device(s).
@retval EFI_SUCCESS The device(s) are capable of rendering the output string.
@retval EFI_UNSUPPORTED Some of the characters in the Unicode string cannot be rendered by
one or more of the output devices mapped by the EFI handle.
**/
EFI_STATUS
EFIAPI
VgaClassTestString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *String
);
/**
Clears the output device(s) display to the currently selected background color.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.ClearScreen().
The ClearScreen() function clears the output device(s) display to the currently
selected background color. The cursor position is set to (0, 0).
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@retval EFI_SUCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED The output device is not in a valid text mode.
**/
EFI_STATUS
EFIAPI
VgaClassClearScreen (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
);
/**
Sets the background and foreground colors for theOutputString() and ClearScreen() functions.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetAttribute().
It sets the background and foreground colors for the OutputString() and ClearScreen() functions.
The color mask can be set even when the device is in an invalid text mode.
Devices supporting a different number of text colors are required to emulate the above colors
to the best of the device<63>s capabilities.
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param Attribute The attribute to set.
Bits 0..3 are the foreground color,
and bits 4..6 are the background color.
@retval EFI_SUCCESS The requested attributes were set.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
**/
EFI_STATUS
EFIAPI
VgaClassSetAttribute (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Attribute
);
/**
Sets the current coordinates of the cursor position.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetCursorPosition().
It sets the current coordinates of the cursor position.
The upper left corner of the screen is defined as coordinate (0, 0).
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param Column Column of position to set the cursor to.
@param Row Row of position to set the cursor to.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED The output device is not in a valid text mode, or the cursor
position is invalid for the current mode.
**/
EFI_STATUS
EFIAPI
VgaClassSetCursorPosition (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Column,
IN UINTN Row
);
/**
Makes the cursor visible or invisible.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.EnableCursor().
It makes the cursor visible or invisible.
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param Visible If TRUE, the cursor is set to be visible.
If FALSE, the cursor is set to be invisible.
@retval EFI_SUCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request or the
device does not support changing the cursor mode.
@retval EFI_UNSUPPORTED The output device does not support visibility control of the cursor.
**/
EFI_STATUS
EFIAPI
VgaClassEnableCursor (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN Visible
);
/**
Returns information for an available text mode that the output device(s) supports.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.QueryMode().
It returns information for an available text mode that the output device(s) supports.
It is required that all output devices support at least 80x25 text mode. This mode is defined to be mode 0.
If the output devices support 80x50, that is defined to be mode 1.
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param ModeNumber The mode number to return information on.
@param Columns Columen in current mode number
@param Rows Row in current mode number.
@retval EFI_SUCCESS The requested mode information was returned.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED The mode number was not valid.
**/
EFI_STATUS
EFIAPI
VgaClassQueryMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber,
OUT UINTN *Columns,
OUT UINTN *Rows
);
/**
Sets the output device(s) to a specified mode.
This function implements EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.QueryMode().
It sets the output device(s) to the requested mode.
On success the device is in the geometry for the requested mode,
and the device has been cleared to the current background color with the cursor at (0,0).
@param This Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param ModeNumber The text mode to set.
@retval EFI_SUCCESS The requested text mode was set.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED The mode number was not valid.
**/
EFI_STATUS
EFIAPI
VgaClassSetMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber
);
#endif
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