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audk/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c

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/** @file
Console Splitter Driver. Any Handle that attatched
EFI_CONSOLE_IDENTIFIER_PROTOCOL can be bound by this driver.
So far it works like any other driver by opening a SimpleTextIn and/or
SimpleTextOut protocol with EFI_OPEN_PROTOCOL_BY_DRIVER attributes. The big
difference is this driver does not layer a protocol on the passed in
handle, or construct a child handle like a standard device or bus driver.
This driver produces three virtual handles as children, one for console input
splitter, one for console output splitter and one for error output splitter.
EFI_CONSOLE_SPLIT_PROTOCOL will be attatched onto each virtual handle to
identify the splitter type.
Each virtual handle, that supports both the EFI_CONSOLE_SPLIT_PROTOCOL
and Console I/O protocol, will be produced in the driver entry point.
The virtual handle are added on driver entry and never removed.
Such design ensures sytem function well during none console device situation.
Copyright (c) 2006 - 2008 Intel Corporation. <BR>
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.
**/
#include "ConSplitter.h"
//
// Global Variables
//
STATIC TEXT_IN_SPLITTER_PRIVATE_DATA mConIn = {
TEXT_IN_SPLITTER_PRIVATE_DATA_SIGNATURE,
(EFI_HANDLE) NULL,
{
ConSplitterTextInReset,
ConSplitterTextInReadKeyStroke,
(EFI_EVENT) NULL
},
0,
(EFI_SIMPLE_TEXT_INPUT_PROTOCOL **) NULL,
0,
{
ConSplitterTextInResetEx,
ConSplitterTextInReadKeyStrokeEx,
(EFI_EVENT) NULL,
ConSplitterTextInSetState,
ConSplitterTextInRegisterKeyNotify,
ConSplitterTextInUnregisterKeyNotify
},
0,
(EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL **) NULL,
0,
{
(LIST_ENTRY *) NULL,
(LIST_ENTRY *) NULL
},
{
ConSplitterSimplePointerReset,
ConSplitterSimplePointerGetState,
(EFI_EVENT) NULL,
(EFI_SIMPLE_POINTER_MODE *) NULL
},
{
0x10000,
0x10000,
0x10000,
TRUE,
TRUE
},
0,
(EFI_SIMPLE_POINTER_PROTOCOL **) NULL,
0,
{
ConSplitterAbsolutePointerReset,
ConSplitterAbsolutePointerGetState,
(EFI_EVENT) NULL,
(EFI_ABSOLUTE_POINTER_MODE *) NULL
},
{
0, //AbsoluteMinX
0, //AbsoluteMinY
0, //AbsoluteMinZ
0x10000, //AbsoluteMaxX
0x10000, //AbsoluteMaxY
0x10000, //AbsoluteMaxZ
0 //Attributes
},
0,
(EFI_ABSOLUTE_POINTER_PROTOCOL **) NULL,
0,
FALSE,
FALSE,
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
},
0,
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
},
(EFI_EVENT) NULL,
FALSE,
FALSE
};
GLOBAL_REMOVE_IF_UNREFERENCED EFI_UGA_DRAW_PROTOCOL gUgaDrawProtocolTemplate = {
ConSpliterUgaDrawGetMode,
ConSpliterUgaDrawSetMode,
ConSpliterUgaDrawBlt
};
GLOBAL_REMOVE_IF_UNREFERENCED EFI_GRAPHICS_OUTPUT_PROTOCOL gGraphicsOutputProtocolTemplate = {
ConSpliterGraphicsOutputQueryMode,
ConSpliterGraphicsOutputSetMode,
ConSpliterGraphicsOutputBlt,
NULL
};
STATIC TEXT_OUT_SPLITTER_PRIVATE_DATA mConOut = {
TEXT_OUT_SPLITTER_PRIVATE_DATA_SIGNATURE,
(EFI_HANDLE) NULL,
{
ConSplitterTextOutReset,
ConSplitterTextOutOutputString,
ConSplitterTextOutTestString,
ConSplitterTextOutQueryMode,
ConSplitterTextOutSetMode,
ConSplitterTextOutSetAttribute,
ConSplitterTextOutClearScreen,
ConSplitterTextOutSetCursorPosition,
ConSplitterTextOutEnableCursor,
(EFI_SIMPLE_TEXT_OUTPUT_MODE *) NULL
},
{
1,
0,
0,
0,
0,
FALSE,
},
{
NULL,
NULL,
NULL
},
0,
0,
0,
0,
(EFI_UGA_PIXEL *) NULL,
{
NULL,
NULL,
NULL,
NULL
},
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) NULL,
(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) NULL,
0,
0,
TRUE,
{
ConSpliterConsoleControlGetMode,
ConSpliterConsoleControlSetMode,
ConSpliterConsoleControlLockStdIn
},
0,
(TEXT_OUT_AND_GOP_DATA *) NULL,
0,
(TEXT_OUT_SPLITTER_QUERY_DATA *) NULL,
0,
(INT32 *) NULL,
EfiConsoleControlScreenText,
0,
0,
(CHAR16 *) NULL,
(INT32 *) NULL
};
STATIC TEXT_OUT_SPLITTER_PRIVATE_DATA mStdErr = {
TEXT_OUT_SPLITTER_PRIVATE_DATA_SIGNATURE,
(EFI_HANDLE) NULL,
{
ConSplitterTextOutReset,
ConSplitterTextOutOutputString,
ConSplitterTextOutTestString,
ConSplitterTextOutQueryMode,
ConSplitterTextOutSetMode,
ConSplitterTextOutSetAttribute,
ConSplitterTextOutClearScreen,
ConSplitterTextOutSetCursorPosition,
ConSplitterTextOutEnableCursor,
(EFI_SIMPLE_TEXT_OUTPUT_MODE *) NULL
},
{
1,
0,
0,
0,
0,
FALSE,
},
{
NULL,
NULL,
NULL
},
0,
0,
0,
0,
(EFI_UGA_PIXEL *) NULL,
{
NULL,
NULL,
NULL,
NULL
},
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) NULL,
(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) NULL,
0,
0,
TRUE,
{
ConSpliterConsoleControlGetMode,
ConSpliterConsoleControlSetMode,
ConSpliterConsoleControlLockStdIn
},
0,
(TEXT_OUT_AND_GOP_DATA *) NULL,
0,
(TEXT_OUT_SPLITTER_QUERY_DATA *) NULL,
0,
(INT32 *) NULL,
EfiConsoleControlScreenText,
0,
0,
(CHAR16 *) NULL,
(INT32 *) NULL
};
EFI_DRIVER_BINDING_PROTOCOL gConSplitterConInDriverBinding = {
ConSplitterConInDriverBindingSupported,
ConSplitterConInDriverBindingStart,
ConSplitterConInDriverBindingStop,
0xa,
NULL,
NULL
};
EFI_DRIVER_BINDING_PROTOCOL gConSplitterSimplePointerDriverBinding = {
ConSplitterSimplePointerDriverBindingSupported,
ConSplitterSimplePointerDriverBindingStart,
ConSplitterSimplePointerDriverBindingStop,
0xa,
NULL,
NULL
};
//
// Driver binding instance for Absolute Pointer protocol
//
EFI_DRIVER_BINDING_PROTOCOL gConSplitterAbsolutePointerDriverBinding = {
ConSplitterAbsolutePointerDriverBindingSupported,
ConSplitterAbsolutePointerDriverBindingStart,
ConSplitterAbsolutePointerDriverBindingStop,
0xa,
NULL,
NULL
};
EFI_DRIVER_BINDING_PROTOCOL gConSplitterConOutDriverBinding = {
ConSplitterConOutDriverBindingSupported,
ConSplitterConOutDriverBindingStart,
ConSplitterConOutDriverBindingStop,
0xa,
NULL,
NULL
};
EFI_DRIVER_BINDING_PROTOCOL gConSplitterStdErrDriverBinding = {
ConSplitterStdErrDriverBindingSupported,
ConSplitterStdErrDriverBindingStart,
ConSplitterStdErrDriverBindingStop,
0xa,
NULL,
NULL
};
/**
The user Entry Point for module ConSplitter. The user code starts with this function.
Installs driver module protocols and. Creates virtual device handles for ConIn,
ConOut, and StdErr. Installs Simple Text In protocol, Simple Text In Ex protocol,
Simple Pointer protocol, Absolute Pointer protocol on those virtual handlers.
Installs Graphics Output protocol and/or UGA Draw protocol if needed.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
ConSplitterDriverEntry(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install driver model protocol(s).
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gConSplitterConInDriverBinding,
ImageHandle,
&gConSplitterConInComponentName,
&gConSplitterConInComponentName2
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gConSplitterSimplePointerDriverBinding,
NULL,
&gConSplitterSimplePointerComponentName,
&gConSplitterSimplePointerComponentName2
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gConSplitterAbsolutePointerDriverBinding,
NULL,
&gConSplitterAbsolutePointerComponentName,
&gConSplitterAbsolutePointerComponentName2
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gConSplitterConOutDriverBinding,
NULL,
&gConSplitterConOutComponentName,
&gConSplitterConOutComponentName2
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gConSplitterStdErrDriverBinding,
NULL,
&gConSplitterStdErrComponentName,
&gConSplitterStdErrComponentName2
);
ASSERT_EFI_ERROR (Status);
ASSERT (FeaturePcdGet (PcdConOutGopSupport) ||
FeaturePcdGet (PcdConOutUgaSupport));
//
// The driver creates virtual handles for ConIn, ConOut, and StdErr.
// The virtual handles will always exist even if no console exist in the
// system. This is need to support hotplug devices like USB.
//
//
// Create virtual device handle for StdErr Splitter
//
Status = ConSplitterTextOutConstructor (&mStdErr);
if (!EFI_ERROR (Status)) {
Status = gBS->InstallMultipleProtocolInterfaces (
&mStdErr.VirtualHandle,
&gEfiSimpleTextOutProtocolGuid,
&mStdErr.TextOut,
&gEfiPrimaryStandardErrorDeviceGuid,
NULL,
NULL
);
}
//
// Create virtual device handle for ConIn Splitter
//
Status = ConSplitterTextInConstructor (&mConIn);
if (!EFI_ERROR (Status)) {
Status = gBS->InstallMultipleProtocolInterfaces (
&mConIn.VirtualHandle,
&gEfiSimpleTextInProtocolGuid,
&mConIn.TextIn,
&gEfiSimpleTextInputExProtocolGuid,
&mConIn.TextInEx,
&gEfiSimplePointerProtocolGuid,
&mConIn.SimplePointer,
&gEfiAbsolutePointerProtocolGuid,
&mConIn.AbsolutePointer,
&gEfiPrimaryConsoleInDeviceGuid,
NULL,
NULL
);
if (!EFI_ERROR (Status)) {
//
// Update the EFI System Table with new virtual console
//
gST->ConsoleInHandle = mConIn.VirtualHandle;
gST->ConIn = &mConIn.TextIn;
}
}
//
// Create virtual device handle for ConOut Splitter
//
Status = ConSplitterTextOutConstructor (&mConOut);
if (!EFI_ERROR (Status)) {
if (!FeaturePcdGet (PcdConOutGopSupport)) {
//
// In EFI mode, UGA Draw protocol is installed
//
Status = gBS->InstallMultipleProtocolInterfaces (
&mConOut.VirtualHandle,
&gEfiSimpleTextOutProtocolGuid,
&mConOut.TextOut,
&gEfiUgaDrawProtocolGuid,
&mConOut.UgaDraw,
&gEfiConsoleControlProtocolGuid,
&mConOut.ConsoleControl,
&gEfiPrimaryConsoleOutDeviceGuid,
NULL,
NULL
);
} else if (!FeaturePcdGet (PcdConOutUgaSupport)) {
//
// In UEFI mode, Graphics Output Protocol is installed on virtual handle.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&mConOut.VirtualHandle,
&gEfiSimpleTextOutProtocolGuid,
&mConOut.TextOut,
&gEfiGraphicsOutputProtocolGuid,
&mConOut.GraphicsOutput,
&gEfiConsoleControlProtocolGuid,
&mConOut.ConsoleControl,
&gEfiPrimaryConsoleOutDeviceGuid,
NULL,
NULL
);
} else {
//
// In EFI and UEFI comptible mode, Graphics Output Protocol and UGA are
// installed on virtual handle.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&mConOut.VirtualHandle,
&gEfiSimpleTextOutProtocolGuid,
&mConOut.TextOut,
&gEfiGraphicsOutputProtocolGuid,
&mConOut.GraphicsOutput,
&gEfiUgaDrawProtocolGuid,
&mConOut.UgaDraw,
&gEfiConsoleControlProtocolGuid,
&mConOut.ConsoleControl,
&gEfiPrimaryConsoleOutDeviceGuid,
NULL,
NULL
);
}
if (!EFI_ERROR (Status)) {
//
// Update the EFI System Table with new virtual console
//
gST->ConsoleOutHandle = mConOut.VirtualHandle;
gST->ConOut = &mConOut.TextOut;
}
}
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 (
(UINT8 *) &gST->Hdr,
gST->Hdr.HeaderSize,
&gST->Hdr.CRC32
);
return EFI_SUCCESS;
}
/**
Construct console input devices' private data.
@param ConInPrivate A pointer to the TEXT_IN_SPLITTER_PRIVATE_DATA
structure.
@retval EFI_OUT_OF_RESOURCES Out of resources.
@retval other Out of resources.
**/
EFI_STATUS
ConSplitterTextInConstructor (
TEXT_IN_SPLITTER_PRIVATE_DATA *ConInPrivate
)
{
EFI_STATUS Status;
//
// Initilize console input splitter's private data.
//
Status = ConSplitterGrowBuffer (
sizeof (EFI_SIMPLE_TEXT_INPUT_PROTOCOL *),
&ConInPrivate->TextInListCount,
(VOID **) &ConInPrivate->TextInList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
//
// Create Event to support locking StdIn Device
//
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
ConSpliterConsoleControlLockStdInEvent,
NULL,
&ConInPrivate->LockEvent
);
ASSERT_EFI_ERROR (Status);
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
ConSplitterTextInWaitForKey,
ConInPrivate,
&ConInPrivate->TextIn.WaitForKey
);
ASSERT_EFI_ERROR (Status);
//
// Buffer for Simple Text Input Ex Protocol
//
Status = ConSplitterGrowBuffer (
sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *),
&ConInPrivate->TextInExListCount,
(VOID **) &ConInPrivate->TextInExList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
ConSplitterTextInWaitForKey,
ConInPrivate,
&ConInPrivate->TextInEx.WaitForKeyEx
);
ASSERT_EFI_ERROR (Status);
InitializeListHead (&ConInPrivate->NotifyList);
//
// Allocate Buffer and Create Event for Absolute Pointer and Simple Pointer Protocols
//
ConInPrivate->AbsolutePointer.Mode = &ConInPrivate->AbsolutePointerMode;
Status = ConSplitterGrowBuffer (
sizeof (EFI_ABSOLUTE_POINTER_PROTOCOL *),
&ConInPrivate->AbsolutePointerListCount,
(VOID **) &ConInPrivate->AbsolutePointerList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
ConSplitterAbsolutePointerWaitForInput,
ConInPrivate,
&ConInPrivate->AbsolutePointer.WaitForInput
);
ASSERT_EFI_ERROR (Status);
ConInPrivate->SimplePointer.Mode = &ConInPrivate->SimplePointerMode;
Status = ConSplitterGrowBuffer (
sizeof (EFI_SIMPLE_POINTER_PROTOCOL *),
&ConInPrivate->PointerListCount,
(VOID **) &ConInPrivate->PointerList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
ConSplitterSimplePointerWaitForInput,
ConInPrivate,
&ConInPrivate->SimplePointer.WaitForInput
);
return Status;
}
/**
Construct console output devices' private data.
@param ConOutPrivate A pointer to the TEXT_IN_SPLITTER_PRIVATE_DATA
structure.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
ConSplitterTextOutConstructor (
TEXT_OUT_SPLITTER_PRIVATE_DATA *ConOutPrivate
)
{
EFI_STATUS Status;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
//
// Copy protocols template
//
if (FeaturePcdGet (PcdConOutUgaSupport)) {
CopyMem (&ConOutPrivate->UgaDraw, &gUgaDrawProtocolTemplate, sizeof (EFI_UGA_DRAW_PROTOCOL));
}
if (FeaturePcdGet (PcdConOutGopSupport)) {
CopyMem (&ConOutPrivate->GraphicsOutput, &gGraphicsOutputProtocolTemplate, sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL));
}
//
// Initilize console output splitter's private data.
//
ConOutPrivate->TextOut.Mode = &ConOutPrivate->TextOutMode;
//
// When new console device is added, the new mode will be set later,
// so put current mode back to init state.
//
ConOutPrivate->TextOutMode.Mode = 0xFF;
Status = ConSplitterGrowBuffer (
sizeof (TEXT_OUT_AND_GOP_DATA),
&ConOutPrivate->TextOutListCount,
(VOID **) &ConOutPrivate->TextOutList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
Status = ConSplitterGrowBuffer (
sizeof (TEXT_OUT_SPLITTER_QUERY_DATA),
&ConOutPrivate->TextOutQueryDataCount,
(VOID **) &ConOutPrivate->TextOutQueryData
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
//
// Setup the DevNullTextOut console to 80 x 25
//
ConOutPrivate->TextOutQueryData[0].Columns = 80;
ConOutPrivate->TextOutQueryData[0].Rows = 25;
DevNullTextOutSetMode (ConOutPrivate, 0);
if (FeaturePcdGet (PcdConOutUgaSupport)) {
//
// Setup the DevNullUgaDraw to 800 x 600 x 32 bits per pixel
//
ConSpliterUgaDrawSetMode (&ConOutPrivate->UgaDraw, 800, 600, 32, 60);
}
if (FeaturePcdGet (PcdConOutGopSupport)) {
//
// Setup resource for mode information in Graphics Output Protocol interface
//
if ((ConOutPrivate->GraphicsOutput.Mode = AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE))) == NULL) {
return EFI_OUT_OF_RESOURCES;
}
if ((ConOutPrivate->GraphicsOutput.Mode->Info = AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION))) == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Setup the DevNullGraphicsOutput to 800 x 600 x 32 bits per pixel
// DevNull will be updated to user-defined mode after driver has started.
//
if ((ConOutPrivate->GraphicsOutputModeBuffer = AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION))) == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Info = &ConOutPrivate->GraphicsOutputModeBuffer[0];
Info->Version = 0;
Info->HorizontalResolution = 800;
Info->VerticalResolution = 600;
Info->PixelFormat = PixelBltOnly;
Info->PixelsPerScanLine = 800;
CopyMem (ConOutPrivate->GraphicsOutput.Mode->Info, Info, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
ConOutPrivate->GraphicsOutput.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
//
// Initialize the following items, theset items remain unchanged in GraphicsOutput->SetMode()
// GraphicsOutputMode->FrameBufferBase, GraphicsOutputMode->FrameBufferSize
//
ConOutPrivate->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
ConOutPrivate->GraphicsOutput.Mode->FrameBufferSize = 0;
ConOutPrivate->GraphicsOutput.Mode->MaxMode = 1;
//
// Initial current mode to unknow state, and then set to mode 0
//
ConOutPrivate->GraphicsOutput.Mode->Mode = 0xffff;
ConOutPrivate->GraphicsOutput.SetMode (&ConOutPrivate->GraphicsOutput, 0);
}
return Status;
}
/**
Test to see if the specified protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param Guid The specified protocol guid.
@retval EFI_SUCCESS The specified protocol is supported on this device.
@retval other The specified protocol is not supported on this device.
**/
EFI_STATUS
ConSplitterSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_GUID *Guid
)
{
EFI_STATUS Status;
VOID *Instance;
//
// Make sure the Console Splitter does not attempt to attach to itself
//
if (ControllerHandle == mConIn.VirtualHandle) {
return EFI_UNSUPPORTED;
}
if (ControllerHandle == mConOut.VirtualHandle) {
return EFI_UNSUPPORTED;
}
if (ControllerHandle == mStdErr.VirtualHandle) {
return EFI_UNSUPPORTED;
}
//
// Check to see whether the handle has the ConsoleInDevice GUID on it
//
Status = gBS->OpenProtocol (
ControllerHandle,
Guid,
&Instance,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
gBS->CloseProtocol (
ControllerHandle,
Guid,
This->DriverBindingHandle,
ControllerHandle
);
return EFI_SUCCESS;
}
/**
Test to see if Console In Device could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@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 other This driver does not support this device
**/
EFI_STATUS
EFIAPI
ConSplitterConInDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiConsoleInDeviceGuid
);
}
/**
Test to see if Simple Pointer protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@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 other This driver does not support this device
**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiSimplePointerProtocolGuid
);
}
/**
Test to see if Absolute Pointer protocol could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@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 other This driver does not support this device
**/
EFI_STATUS
EFIAPI
ConSplitterAbsolutePointerDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiAbsolutePointerProtocolGuid
);
}
/**
Test to see if Console Out Device could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@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 other This driver does not support this device
**/
EFI_STATUS
EFIAPI
ConSplitterConOutDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiConsoleOutDeviceGuid
);
}
/**
Test to see if Standard Error Device could be supported on the ControllerHandle.
@param This Protocol instance pointer.
@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 other This driver does not support this device
**/
EFI_STATUS
EFIAPI
ConSplitterStdErrDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiStandardErrorDeviceGuid
);
}
/**
Start ConSplitter on devcie handle by opening Console Device Guid on device handle
and the console virtual handle. And Get the console interface on controller handle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device.
@param ConSplitterVirtualHandle Console virtual Handle.
@param DeviceGuid The specified Console Device, such as ConInDev,
ConOutDev.
@param InterfaceGuid The specified protocol to be opened.
@param Interface Protocol interface returned.
@retval EFI_SUCCESS This driver supports this device
@retval other Failed to open the specified Console Device Guid
or specified protocol.
**/
EFI_STATUS
ConSplitterStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ConSplitterVirtualHandle,
IN EFI_GUID *DeviceGuid,
IN EFI_GUID *InterfaceGuid,
OUT VOID **Interface
)
{
EFI_STATUS Status;
VOID *Instance;
//
// Check to see whether the ControllerHandle has the InterfaceGuid on it.
//
Status = gBS->OpenProtocol (
ControllerHandle,
DeviceGuid,
&Instance,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
ControllerHandle,
DeviceGuid,
&Instance,
This->DriverBindingHandle,
ConSplitterVirtualHandle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
if (EFI_ERROR (Status)) {
return Status;
}
return gBS->OpenProtocol (
ControllerHandle,
InterfaceGuid,
Interface,
This->DriverBindingHandle,
ConSplitterVirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
}
/**
Start Console In Consplitter on device handle.
@param This Protocol instance pointer.
@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 Console In Consplitter is added to ControllerHandle.
@retval other Console In Consplitter does not support this device.
**/
EFI_STATUS
EFIAPI
ConSplitterConInDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx;
//
// Start ConSplitter on ControllerHandle, and create the virtual
// agrogated console device on first call Start for a SimpleTextIn handle.
//
Status = ConSplitterStart (
This,
ControllerHandle,
mConIn.VirtualHandle,
&gEfiConsoleInDeviceGuid,
&gEfiSimpleTextInProtocolGuid,
(VOID **) &TextIn
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = ConSplitterTextInAddDevice (&mConIn, TextIn);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiSimpleTextInputExProtocolGuid,
(VOID **) &TextInEx,
This->DriverBindingHandle,
mConIn.VirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = ConSplitterTextInExAddDevice (&mConIn, TextInEx);
return Status;
}
/**
Start Simple Pointer Consplitter on device handle.
@param This Protocol instance pointer.
@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 Simple Pointer Consplitter is added to ControllerHandle.
@retval other Simple Pointer Consplitter does not support this device.
**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer;
Status = ConSplitterStart (
This,
ControllerHandle,
mConIn.VirtualHandle,
&gEfiSimplePointerProtocolGuid,
&gEfiSimplePointerProtocolGuid,
(VOID **) &SimplePointer
);
if (EFI_ERROR (Status)) {
return Status;
}
return ConSplitterSimplePointerAddDevice (&mConIn, SimplePointer);
}
/**
Start Absolute Pointer Consplitter on device handle.
@param This Protocol instance pointer.
@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 Absolute Pointer Consplitter is added to ControllerHandle.
@retval other Absolute Pointer Consplitter does not support this device.
**/
EFI_STATUS
EFIAPI
ConSplitterAbsolutePointerDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer;
Status = ConSplitterStart (
This,
ControllerHandle,
mConIn.VirtualHandle,
&gEfiAbsolutePointerProtocolGuid,
&gEfiAbsolutePointerProtocolGuid,
(VOID **) &AbsolutePointer
);
if (EFI_ERROR (Status)) {
return Status;
}
return ConSplitterAbsolutePointerAddDevice (&mConIn, AbsolutePointer);
}
/**
Start Console Out Consplitter on device handle.
@param This Protocol instance pointer.
@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 Console Out Consplitter is added to ControllerHandle.
@retval other Console Out Consplitter does not support this device.
**/
EFI_STATUS
EFIAPI
ConSplitterConOutDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
Status = ConSplitterStart (
This,
ControllerHandle,
mConOut.VirtualHandle,
&gEfiConsoleOutDeviceGuid,
&gEfiSimpleTextOutProtocolGuid,
(VOID **) &TextOut
);
if (EFI_ERROR (Status)) {
return Status;
}
GraphicsOutput = NULL;
UgaDraw = NULL;
//
// Try to Open Graphics Output protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiGraphicsOutputProtocolGuid,
(VOID **) &GraphicsOutput,
This->DriverBindingHandle,
mConOut.VirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status) && FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Open UGA_DRAW protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw,
This->DriverBindingHandle,
mConOut.VirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
}
//
// When new console device is added, the new mode will be set later,
// so put current mode back to init state.
//
mConOut.TextOutMode.Mode = 0xFF;
//
// If both ConOut and StdErr incorporate the same Text Out device,
// their MaxMode and QueryData should be the intersection of both.
//
Status = ConSplitterTextOutAddDevice (&mConOut, TextOut, GraphicsOutput, UgaDraw);
ConSplitterTextOutSetAttribute (&mConOut.TextOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
if (FeaturePcdGet (PcdConOutUgaSupport) && FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Match the UGA mode data of ConOut with the current mode
//
if (UgaDraw != NULL) {
UgaDraw->GetMode (
UgaDraw,
&mConOut.UgaHorizontalResolution,
&mConOut.UgaVerticalResolution,
&mConOut.UgaColorDepth,
&mConOut.UgaRefreshRate
);
}
}
return Status;
}
/**
Start Standard Error Consplitter on device handle.
@param This Protocol instance pointer.
@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 Standard Error Consplitter is added to ControllerHandle.
@retval other Standard Error Consplitter does not support this device.
**/
EFI_STATUS
EFIAPI
ConSplitterStdErrDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
Status = ConSplitterStart (
This,
ControllerHandle,
mStdErr.VirtualHandle,
&gEfiStandardErrorDeviceGuid,
&gEfiSimpleTextOutProtocolGuid,
(VOID **) &TextOut
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// When new console device is added, the new mode will be set later,
// so put current mode back to init state.
//
mStdErr.TextOutMode.Mode = 0xFF;
//
// If both ConOut and StdErr incorporate the same Text Out device,
// their MaxMode and QueryData should be the intersection of both.
//
Status = ConSplitterTextOutAddDevice (&mStdErr, TextOut, NULL, NULL);
ConSplitterTextOutSetAttribute (&mStdErr.TextOut, EFI_TEXT_ATTR (EFI_MAGENTA, EFI_BLACK));
if (EFI_ERROR (Status)) {
return Status;
}
if (mStdErr.CurrentNumberOfConsoles == 1) {
gST->StandardErrorHandle = mStdErr.VirtualHandle;
gST->StdErr = &mStdErr.TextOut;
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 (
(UINT8 *) &gST->Hdr,
gST->Hdr.HeaderSize,
&gST->Hdr.CRC32
);
}
return Status;
}
/**
Stop ConSplitter on device handle by opening Console Device Guid on device handle
and the console virtual handle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device.
@param ConSplitterVirtualHandle Console virtual Handle.
@param DeviceGuid The specified Console Device, such as ConInDev,
ConOutDev.
@param InterfaceGuid The specified protocol to be opened.
@param Interface Protocol interface returned.
@retval EFI_SUCCESS Stop ConSplitter on ControllerHandle successfully.
@retval other Failed to Stop ConSplitter on ControllerHandle.
**/
EFI_STATUS
ConSplitterStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ConSplitterVirtualHandle,
IN EFI_GUID *DeviceGuid,
IN EFI_GUID *InterfaceGuid,
IN VOID **Interface
)
{
EFI_STATUS Status;
Status = gBS->OpenProtocol (
ControllerHandle,
InterfaceGuid,
Interface,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// close the protocol refered.
//
gBS->CloseProtocol (
ControllerHandle,
DeviceGuid,
This->DriverBindingHandle,
ConSplitterVirtualHandle
);
gBS->CloseProtocol (
ControllerHandle,
DeviceGuid,
This->DriverBindingHandle,
ControllerHandle
);
return EFI_SUCCESS;
}
/**
Stop Console In ConSplitter on ControllerHandle by closing Console In Devcice GUID.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
ConSplitterConInDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx;
if (NumberOfChildren == 0) {
return EFI_SUCCESS;
}
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiSimpleTextInputExProtocolGuid,
(VOID **) &TextInEx,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = ConSplitterTextInExDeleteDevice (&mConIn, TextInEx);
if (EFI_ERROR (Status)) {
return Status;
}
Status = ConSplitterStop (
This,
ControllerHandle,
mConIn.VirtualHandle,
&gEfiConsoleInDeviceGuid,
&gEfiSimpleTextInProtocolGuid,
(VOID **) &TextIn
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Delete this console input device's data structures.
//
return ConSplitterTextInDeleteDevice (&mConIn, TextIn);
}
/**
Stop Simple Pointer protocol ConSplitter on ControllerHandle by closing
Simple Pointer protocol.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer;
if (NumberOfChildren == 0) {
return EFI_SUCCESS;
}
Status = ConSplitterStop (
This,
ControllerHandle,
mConIn.VirtualHandle,
&gEfiSimplePointerProtocolGuid,
&gEfiSimplePointerProtocolGuid,
(VOID **) &SimplePointer
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Delete this console input device's data structures.
//
return ConSplitterSimplePointerDeleteDevice (&mConIn, SimplePointer);
}
/**
Stop Absolute Pointer protocol ConSplitter on ControllerHandle by closing
Absolute Pointer protocol.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
ConSplitterAbsolutePointerDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer;
if (NumberOfChildren == 0) {
return EFI_SUCCESS;
}
Status = ConSplitterStop (
This,
ControllerHandle,
mConIn.VirtualHandle,
&gEfiAbsolutePointerProtocolGuid,
&gEfiAbsolutePointerProtocolGuid,
(VOID **) &AbsolutePointer
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Delete this console input device's data structures.
//
return ConSplitterAbsolutePointerDeleteDevice (&mConIn, AbsolutePointer);
}
/**
Stop Console Out ConSplitter on device handle by closing Console Out Devcice GUID.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
ConSplitterConOutDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
if (NumberOfChildren == 0) {
return EFI_SUCCESS;
}
Status = ConSplitterStop (
This,
ControllerHandle,
mConOut.VirtualHandle,
&gEfiConsoleOutDeviceGuid,
&gEfiSimpleTextOutProtocolGuid,
(VOID **) &TextOut
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Delete this console output device's data structures.
//
return ConSplitterTextOutDeleteDevice (&mConOut, TextOut);
}
/**
Stop Standard Error ConSplitter on ControllerHandle by closing Standard Error GUID.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
ConSplitterStdErrDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
if (NumberOfChildren == 0) {
return EFI_SUCCESS;
}
Status = ConSplitterStop (
This,
ControllerHandle,
mStdErr.VirtualHandle,
&gEfiStandardErrorDeviceGuid,
&gEfiSimpleTextOutProtocolGuid,
(VOID **) &TextOut
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Delete this console error out device's data structures.
//
Status = ConSplitterTextOutDeleteDevice (&mStdErr, TextOut);
if (EFI_ERROR (Status)) {
return Status;
}
if (mStdErr.CurrentNumberOfConsoles == 0) {
gST->StandardErrorHandle = NULL;
gST->StdErr = NULL;
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 (
(UINT8 *) &gST->Hdr,
gST->Hdr.HeaderSize,
&gST->Hdr.CRC32
);
}
return Status;
}
/**
Take the passed in Buffer of size SizeOfCount and grow the buffer
by MAX (CONSOLE_SPLITTER_CONSOLES_ALLOC_UNIT, MaxGrow) * SizeOfCount
bytes. Copy the current data in Buffer to the new version of Buffer
and free the old version of buffer.
@param SizeOfCount Size of element in array
@param Count Current number of elements in array
@param Buffer Bigger version of passed in Buffer with all the
data
@retval EFI_SUCCESS Buffer size has grown
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterGrowBuffer (
IN UINTN SizeOfCount,
IN UINTN *Count,
IN OUT VOID **Buffer
)
{
UINTN NewSize;
UINTN OldSize;
VOID *Ptr;
//
// grow the buffer to new buffer size,
// copy the old buffer's content to the new-size buffer,
// then free the old buffer.
//
OldSize = *Count * SizeOfCount;
*Count += CONSOLE_SPLITTER_CONSOLES_ALLOC_UNIT;
NewSize = *Count * SizeOfCount;
Ptr = AllocateZeroPool (NewSize);
if (Ptr == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CopyMem (Ptr, *Buffer, OldSize);
if (*Buffer != NULL) {
FreePool (*Buffer);
}
*Buffer = Ptr;
return EFI_SUCCESS;
}
/**
Add Text Input Device in Consplitter Text Input list.
@param Private Text In Splitter pointer.
@param TextIn Simple Text Input protocol pointer.
@retval EFI_SUCCESS Text Input Device added successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterTextInAddDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn
)
{
EFI_STATUS Status;
//
// If the Text In List is full, enlarge it by calling growbuffer().
//
if (Private->CurrentNumberOfConsoles >= Private->TextInListCount) {
Status = ConSplitterGrowBuffer (
sizeof (EFI_SIMPLE_TEXT_INPUT_PROTOCOL *),
&Private->TextInListCount,
(VOID **) &Private->TextInList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Add the new text-in device data structure into the Text In List.
//
Private->TextInList[Private->CurrentNumberOfConsoles] = TextIn;
Private->CurrentNumberOfConsoles++;
//
// Extra CheckEvent added to reduce the double CheckEvent() in UI.c
//
gBS->CheckEvent (TextIn->WaitForKey);
return EFI_SUCCESS;
}
/**
Remove Simple Text Device in Consplitter Absolute Pointer list.
@param Private Text In Splitter pointer.
@param TextIn Simple Text protocol pointer.
@retval EFI_SUCCESS Simple Text Device removed successfully.
@retval EFI_NOT_FOUND No Simple Text Device found.
**/
EFI_STATUS
ConSplitterTextInDeleteDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn
)
{
UINTN Index;
//
// Remove the specified text-in device data structure from the Text In List,
// and rearrange the remaining data structures in the Text In List.
//
for (Index = 0; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextInList[Index] == TextIn) {
for (Index = Index; Index < Private->CurrentNumberOfConsoles - 1; Index++) {
Private->TextInList[Index] = Private->TextInList[Index + 1];
}
Private->CurrentNumberOfConsoles--;
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Add Text Input Ex Device in Consplitter Text Input Ex list.
@param Private Text In Splitter pointer.
@param TextInEx Simple Text Ex Input protocol pointer.
@retval EFI_SUCCESS Text Input Ex Device added successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterTextInExAddDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx
)
{
EFI_STATUS Status;
//
// If the TextInEx List is full, enlarge it by calling growbuffer().
//
if (Private->CurrentNumberOfExConsoles >= Private->TextInExListCount) {
Status = ConSplitterGrowBuffer (
sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *),
&Private->TextInExListCount,
(VOID **) &Private->TextInExList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Add the new text-in device data structure into the Text In List.
//
Private->TextInExList[Private->CurrentNumberOfExConsoles] = TextInEx;
Private->CurrentNumberOfExConsoles++;
//
// Extra CheckEvent added to reduce the double CheckEvent() in UI.c
//
gBS->CheckEvent (TextInEx->WaitForKeyEx);
return EFI_SUCCESS;
}
/**
Remove Simple Text Ex Device in Consplitter Absolute Pointer list.
@param Private Text In Splitter pointer.
@param TextInEx Simple Text Ex protocol pointer.
@retval EFI_SUCCESS Simple Text Ex Device removed successfully.
@retval EFI_NOT_FOUND No Simple Text Ex Device found.
**/
EFI_STATUS
ConSplitterTextInExDeleteDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx
)
{
UINTN Index;
//
// Remove the specified text-in device data structure from the Text In List,
// and rearrange the remaining data structures in the Text In List.
//
for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
if (Private->TextInExList[Index] == TextInEx) {
for (Index = Index; Index < Private->CurrentNumberOfExConsoles - 1; Index++) {
Private->TextInExList[Index] = Private->TextInExList[Index + 1];
}
Private->CurrentNumberOfExConsoles--;
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Add Simple Pointer Device in Consplitter Simple Pointer list.
@param Private Text In Splitter pointer.
@param SimplePointer Simple Pointer protocol pointer.
@retval EFI_SUCCESS Simple Pointer Device added successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterSimplePointerAddDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer
)
{
EFI_STATUS Status;
//
// If the Text In List is full, enlarge it by calling growbuffer().
//
if (Private->CurrentNumberOfPointers >= Private->PointerListCount) {
Status = ConSplitterGrowBuffer (
sizeof (EFI_SIMPLE_POINTER_PROTOCOL *),
&Private->PointerListCount,
(VOID **) &Private->PointerList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Add the new text-in device data structure into the Text In List.
//
Private->PointerList[Private->CurrentNumberOfPointers] = SimplePointer;
Private->CurrentNumberOfPointers++;
return EFI_SUCCESS;
}
/**
Remove Simple Pointer Device in Consplitter Absolute Pointer list.
@param Private Text In Splitter pointer.
@param SimplePointer Simple Pointer protocol pointer.
@retval EFI_SUCCESS Simple Pointer Device removed successfully.
@retval EFI_NOT_FOUND No Simple Pointer Device found.
**/
EFI_STATUS
ConSplitterSimplePointerDeleteDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer
)
{
UINTN Index;
//
// Remove the specified text-in device data structure from the Text In List,
// and rearrange the remaining data structures in the Text In List.
//
for (Index = 0; Index < Private->CurrentNumberOfPointers; Index++) {
if (Private->PointerList[Index] == SimplePointer) {
for (Index = Index; Index < Private->CurrentNumberOfPointers - 1; Index++) {
Private->PointerList[Index] = Private->PointerList[Index + 1];
}
Private->CurrentNumberOfPointers--;
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Add Absolute Pointer Device in Consplitter Absolute Pointer list.
@param Private Text In Splitter pointer.
@param AbsolutePointer Absolute Pointer protocol pointer.
@retval EFI_SUCCESS Absolute Pointer Device added successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterAbsolutePointerAddDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer
)
{
EFI_STATUS Status;
//
// If the Absolute Pointer List is full, enlarge it by calling growbuffer().
//
if (Private->CurrentNumberOfAbsolutePointers >= Private->AbsolutePointerListCount) {
Status = ConSplitterGrowBuffer (
sizeof (EFI_ABSOLUTE_POINTER_PROTOCOL *),
&Private->AbsolutePointerListCount,
(VOID **) &Private->AbsolutePointerList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Add the new text-in device data structure into the Text In List.
//
Private->AbsolutePointerList[Private->CurrentNumberOfAbsolutePointers] = AbsolutePointer;
Private->CurrentNumberOfAbsolutePointers++;
return EFI_SUCCESS;
}
/**
Remove Absolute Pointer Device in Consplitter Absolute Pointer list.
@param Private Text In Splitter pointer.
@param AbsolutePointer Absolute Pointer protocol pointer.
@retval EFI_SUCCESS Absolute Pointer Device removed successfully.
@retval EFI_NOT_FOUND No Absolute Pointer Device found.
**/
EFI_STATUS
ConSplitterAbsolutePointerDeleteDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer
)
{
UINTN Index;
//
// Remove the specified text-in device data structure from the Text In List,
// and rearrange the remaining data structures in the Text In List.
//
for (Index = 0; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
if (Private->AbsolutePointerList[Index] == AbsolutePointer) {
for (Index = Index; Index < Private->CurrentNumberOfAbsolutePointers - 1; Index++) {
Private->AbsolutePointerList[Index] = Private->AbsolutePointerList[Index + 1];
}
Private->CurrentNumberOfAbsolutePointers--;
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
EFI_STATUS
ConSplitterGrowMapTable (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
)
{
UINTN Size;
UINTN NewSize;
UINTN TotalSize;
INT32 *TextOutModeMap;
INT32 *OldTextOutModeMap;
INT32 *SrcAddress;
INT32 Index;
NewSize = Private->TextOutListCount * sizeof (INT32);
OldTextOutModeMap = Private->TextOutModeMap;
TotalSize = NewSize * Private->TextOutQueryDataCount;
TextOutModeMap = AllocateZeroPool (TotalSize);
if (TextOutModeMap == NULL) {
return EFI_OUT_OF_RESOURCES;
}
SetMem (TextOutModeMap, TotalSize, 0xFF);
Private->TextOutModeMap = TextOutModeMap;
//
// If TextOutList has been enlarged, need to realloc the mode map table
// The mode map table is regarded as a two dimension array.
//
// Old New
// 0 ---------> TextOutListCount ----> TextOutListCount
// | -------------------------------------------
// | | | |
// | | | |
// | | | |
// | | | |
// | | | |
// \/ | | |
// -------------------------------------------
// QueryDataCount
//
if (OldTextOutModeMap != NULL) {
Size = Private->CurrentNumberOfConsoles * sizeof (INT32);
Index = 0;
SrcAddress = OldTextOutModeMap;
//
// Copy the old data to the new one
//
while (Index < Private->TextOutMode.MaxMode) {
CopyMem (TextOutModeMap, SrcAddress, Size);
TextOutModeMap += NewSize;
SrcAddress += Size;
Index++;
}
//
// Free the old buffer
//
FreePool (OldTextOutModeMap);
}
return EFI_SUCCESS;
}
/**
Add the device's output mode to console splitter's mode list.
@param Private Text Out Splitter pointer
@param TextOut Simple Text Output protocol pointer.
@retval EFI_SUCCESS Device added successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterAddOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
)
{
EFI_STATUS Status;
INT32 MaxMode;
INT32 Mode;
UINTN Index;
MaxMode = TextOut->Mode->MaxMode;
Private->TextOutMode.MaxMode = MaxMode;
//
// Grow the buffer if query data buffer is not large enough to
// hold all the mode supported by the first console.
//
while (MaxMode > (INT32) Private->TextOutQueryDataCount) {
Status = ConSplitterGrowBuffer (
sizeof (TEXT_OUT_SPLITTER_QUERY_DATA),
&Private->TextOutQueryDataCount,
(VOID **) &Private->TextOutQueryData
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Allocate buffer for the output mode map
//
Status = ConSplitterGrowMapTable (Private);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
//
// As the first textout device, directly add the mode in to QueryData
// and at the same time record the mapping between QueryData and TextOut.
//
Mode = 0;
Index = 0;
while (Mode < MaxMode) {
Status = TextOut->QueryMode (
TextOut,
Mode,
&Private->TextOutQueryData[Mode].Columns,
&Private->TextOutQueryData[Mode].Rows
);
//
// If mode 1 (80x50) is not supported, make sure mode 1 in TextOutQueryData
// is clear to 0x0.
//
if ((EFI_ERROR(Status)) && (Mode == 1)) {
Private->TextOutQueryData[Mode].Columns = 0;
Private->TextOutQueryData[Mode].Rows = 0;
}
Private->TextOutModeMap[Index] = Mode;
Mode++;
Index += Private->TextOutListCount;
}
return EFI_SUCCESS;
}
/**
Reconstruct TextOutModeMap to get intersection of modes
This routine reconstruct TextOutModeMap to get the intersection
of modes for all console out devices. Because EFI/UEFI spec require
mode 0 is 80x25, mode 1 is 80x50, this routine will not check the
intersection for mode 0 and mode 1.
@param TextOutModeMap Current text out mode map, begin with the mode 80x25
@param NewlyAddedMap New text out mode map, begin with the mode 80x25
@param MapStepSize Mode step size for one console device
@param NewMapStepSize Mode step size for one console device
@param MaxMode Current max text mode
@param CurrentMode Current text mode
@retval None
**/
VOID
ConSplitterGetIntersection (
IN INT32 *TextOutModeMap,
IN INT32 *NewlyAddedMap,
IN UINTN MapStepSize,
IN UINTN NewMapStepSize,
OUT INT32 *MaxMode,
OUT INT32 *CurrentMode
)
{
INT32 Index;
INT32 *CurrentMapEntry;
INT32 *NextMapEntry;
INT32 CurrentMaxMode;
INT32 Mode;
//
// According to EFI/UEFI spec, mode 0 and mode 1 have been reserved
// for 80x25 and 80x50 in Simple Text Out protocol, so don't make intersection
// for mode 0 and mode 1, mode number starts from 2.
//
Index = 2;
CurrentMapEntry = &TextOutModeMap[MapStepSize * 2];
NextMapEntry = &TextOutModeMap[MapStepSize * 2];
NewlyAddedMap = &NewlyAddedMap[NewMapStepSize * 2];
CurrentMaxMode = *MaxMode;
Mode = *CurrentMode;
while (Index < CurrentMaxMode) {
if (*NewlyAddedMap == -1) {
//
// This mode is not supported any more. Remove it. Special care
// must be taken as this remove will also affect current mode;
//
if (Index == *CurrentMode) {
Mode = -1;
} else if (Index < *CurrentMode) {
Mode--;
}
(*MaxMode)--;
} else {
if (CurrentMapEntry != NextMapEntry) {
CopyMem (NextMapEntry, CurrentMapEntry, MapStepSize * sizeof (INT32));
}
NextMapEntry += MapStepSize;
}
CurrentMapEntry += MapStepSize;
NewlyAddedMap += NewMapStepSize;
Index++;
}
*CurrentMode = Mode;
return ;
}
/**
Add the device's output mode to console splitter's mode list.
@param Private Text Out Splitter pointer
@param TextOut Simple Text Output protocol pointer.
@reture None
**/
VOID
ConSplitterSyncOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
)
{
INT32 CurrentMaxMode;
INT32 Mode;
INT32 Index;
INT32 *TextOutModeMap;
INT32 *MapTable;
INT32 QueryMode;
TEXT_OUT_SPLITTER_QUERY_DATA *TextOutQueryData;
UINTN Rows;
UINTN Columns;
UINTN StepSize;
EFI_STATUS Status;
//
// Must make sure that current mode won't change even if mode number changes
//
CurrentMaxMode = Private->TextOutMode.MaxMode;
TextOutModeMap = Private->TextOutModeMap;
StepSize = Private->TextOutListCount;
TextOutQueryData = Private->TextOutQueryData;
//
// Query all the mode that the newly added TextOut supports
//
Mode = 0;
MapTable = TextOutModeMap + Private->CurrentNumberOfConsoles;
while (Mode < TextOut->Mode->MaxMode) {
Status = TextOut->QueryMode (TextOut, Mode, &Columns, &Rows);
if (EFI_ERROR(Status)) {
if (Mode == 1) {
MapTable[StepSize] = Mode;
TextOutQueryData[Mode].Columns = 0;
TextOutQueryData[Mode].Rows = 0;
}
Mode++;
continue;
}
//
// Search the intersection map and QueryData database to see if they intersects
//
Index = 0;
while (Index < CurrentMaxMode) {
QueryMode = *(TextOutModeMap + Index * StepSize);
if ((TextOutQueryData[QueryMode].Rows == Rows) && (TextOutQueryData[QueryMode].Columns == Columns)) {
MapTable[Index * StepSize] = Mode;
break;
}
Index++;
}
Mode++;
}
//
// Now search the TextOutModeMap table to find the intersection of supported
// mode between ConSplitter and the newly added device.
//
ConSplitterGetIntersection (
TextOutModeMap,
MapTable,
StepSize,
StepSize,
&Private->TextOutMode.MaxMode,
&Private->TextOutMode.Mode
);
return ;
}
/**
Sync output device between ConOut and StdErr output.
@retval EFI_SUCCESS Sync implemented successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterGetIntersectionBetweenConOutAndStrErr (
VOID
)
{
UINTN ConOutNumOfConsoles;
UINTN StdErrNumOfConsoles;
TEXT_OUT_AND_GOP_DATA *ConOutTextOutList;
TEXT_OUT_AND_GOP_DATA *StdErrTextOutList;
UINTN Indexi;
UINTN Indexj;
UINTN ConOutRows;
UINTN ConOutColumns;
UINTN StdErrRows;
UINTN StdErrColumns;
INT32 ConOutMaxMode;
INT32 StdErrMaxMode;
INT32 ConOutMode;
INT32 StdErrMode;
INT32 Mode;
INT32 Index;
INT32 *ConOutModeMap;
INT32 *StdErrModeMap;
INT32 *ConOutMapTable;
INT32 *StdErrMapTable;
TEXT_OUT_SPLITTER_QUERY_DATA *ConOutQueryData;
TEXT_OUT_SPLITTER_QUERY_DATA *StdErrQueryData;
UINTN ConOutStepSize;
UINTN StdErrStepSize;
BOOLEAN FoundTheSameTextOut;
UINTN ConOutMapTableSize;
UINTN StdErrMapTableSize;
ConOutNumOfConsoles = mConOut.CurrentNumberOfConsoles;
StdErrNumOfConsoles = mStdErr.CurrentNumberOfConsoles;
ConOutTextOutList = mConOut.TextOutList;
StdErrTextOutList = mStdErr.TextOutList;
Indexi = 0;
FoundTheSameTextOut = FALSE;
while ((Indexi < ConOutNumOfConsoles) && (!FoundTheSameTextOut)) {
Indexj = 0;
while (Indexj < StdErrNumOfConsoles) {
if (ConOutTextOutList->TextOut == StdErrTextOutList->TextOut) {
FoundTheSameTextOut = TRUE;
break;
}
Indexj++;
StdErrTextOutList++;
}
Indexi++;
ConOutTextOutList++;
}
if (!FoundTheSameTextOut) {
return EFI_SUCCESS;
}
//
// Must make sure that current mode won't change even if mode number changes
//
ConOutMaxMode = mConOut.TextOutMode.MaxMode;
ConOutModeMap = mConOut.TextOutModeMap;
ConOutStepSize = mConOut.TextOutListCount;
ConOutQueryData = mConOut.TextOutQueryData;
StdErrMaxMode = mStdErr.TextOutMode.MaxMode;
StdErrModeMap = mStdErr.TextOutModeMap;
StdErrStepSize = mStdErr.TextOutListCount;
StdErrQueryData = mStdErr.TextOutQueryData;
//
// Allocate the map table and set the map table's index to -1.
//
ConOutMapTableSize = ConOutMaxMode * sizeof (INT32);
ConOutMapTable = AllocateZeroPool (ConOutMapTableSize);
if (ConOutMapTable == NULL) {
return EFI_OUT_OF_RESOURCES;
}
SetMem (ConOutMapTable, ConOutMapTableSize, 0xFF);
StdErrMapTableSize = StdErrMaxMode * sizeof (INT32);
StdErrMapTable = AllocateZeroPool (StdErrMapTableSize);
if (StdErrMapTable == NULL) {
return EFI_OUT_OF_RESOURCES;
}
SetMem (StdErrMapTable, StdErrMapTableSize, 0xFF);
//
// Find the intersection of the two set of modes. If they actually intersect, the
// correponding entry in the map table is set to 1.
//
Mode = 0;
while (Mode < ConOutMaxMode) {
//
// Search the intersection map and QueryData database to see if they intersect
//
Index = 0;
ConOutMode = *(ConOutModeMap + Mode * ConOutStepSize);
ConOutRows = ConOutQueryData[ConOutMode].Rows;
ConOutColumns = ConOutQueryData[ConOutMode].Columns;
while (Index < StdErrMaxMode) {
StdErrMode = *(StdErrModeMap + Index * StdErrStepSize);
StdErrRows = StdErrQueryData[StdErrMode].Rows;
StdErrColumns = StdErrQueryData[StdErrMode].Columns;
if ((StdErrRows == ConOutRows) && (StdErrColumns == ConOutColumns)) {
ConOutMapTable[Mode] = 1;
StdErrMapTable[Index] = 1;
break;
}
Index++;
}
Mode++;
}
//
// Now search the TextOutModeMap table to find the intersection of supported
// mode between ConSplitter and the newly added device.
//
ConSplitterGetIntersection (
ConOutModeMap,
ConOutMapTable,
mConOut.TextOutListCount,
1,
&(mConOut.TextOutMode.MaxMode),
&(mConOut.TextOutMode.Mode)
);
if (mConOut.TextOutMode.Mode < 0) {
mConOut.TextOut.SetMode (&(mConOut.TextOut), 0);
}
ConSplitterGetIntersection (
StdErrModeMap,
StdErrMapTable,
mStdErr.TextOutListCount,
1,
&(mStdErr.TextOutMode.MaxMode),
&(mStdErr.TextOutMode.Mode)
);
if (mStdErr.TextOutMode.Mode < 0) {
mStdErr.TextOut.SetMode (&(mStdErr.TextOut), 0);
}
FreePool (ConOutMapTable);
FreePool (StdErrMapTable);
return EFI_SUCCESS;
}
/**
Add GOP or UGA output mode into Consplitter Text Out list.
@param Private Text Out Splitter pointer.
@param GraphicsOutput Graphics Output protocol pointer.
@param UgaDraw UGA Draw protocol pointer.
@retval EFI_SUCCESS Output mode added successfully.
@retval other Failed to add output mode.
**/
EFI_STATUS
ConSplitterAddGraphicsOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
)
{
EFI_STATUS Status;
UINTN Index;
UINTN CurrentIndex;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Mode;
UINTN SizeOfInfo;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *CurrentGraphicsOutputMode;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *ModeBuffer;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *MatchedMode;
UINTN NumberIndex;
BOOLEAN Match;
BOOLEAN AlreadyExist;
UINT32 UgaHorizontalResolution;
UINT32 UgaVerticalResolution;
UINT32 UgaColorDepth;
UINT32 UgaRefreshRate;
if ((GraphicsOutput == NULL) && (UgaDraw == NULL)) {
return EFI_UNSUPPORTED;
}
CurrentGraphicsOutputMode = Private->GraphicsOutput.Mode;
Index = 0;
CurrentIndex = 0;
if (Private->CurrentNumberOfUgaDraw != 0) {
//
// If any UGA device has already been added, then there is no need to
// calculate intersection of display mode of different GOP/UGA device,
// since only one display mode will be exported (i.e. user-defined mode)
//
goto Done;
}
if (GraphicsOutput != NULL) {
if (Private->CurrentNumberOfGraphicsOutput == 0) {
//
// This is the first Graphics Output device added
//
CurrentGraphicsOutputMode->MaxMode = GraphicsOutput->Mode->MaxMode;
CurrentGraphicsOutputMode->Mode = GraphicsOutput->Mode->Mode;
CopyMem (CurrentGraphicsOutputMode->Info, GraphicsOutput->Mode->Info, GraphicsOutput->Mode->SizeOfInfo);
CurrentGraphicsOutputMode->SizeOfInfo = GraphicsOutput->Mode->SizeOfInfo;
CurrentGraphicsOutputMode->FrameBufferBase = GraphicsOutput->Mode->FrameBufferBase;
CurrentGraphicsOutputMode->FrameBufferSize = GraphicsOutput->Mode->FrameBufferSize;
//
// Allocate resource for the private mode buffer
//
ModeBuffer = AllocatePool (GraphicsOutput->Mode->SizeOfInfo * GraphicsOutput->Mode->MaxMode);
if (ModeBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
FreePool (Private->GraphicsOutputModeBuffer);
Private->GraphicsOutputModeBuffer = ModeBuffer;
//
// Store all supported display modes to the private mode buffer
//
Mode = ModeBuffer;
for (Index = 0; Index < GraphicsOutput->Mode->MaxMode; Index++) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) Index, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
return Status;
}
CopyMem (Mode, Info, SizeOfInfo);
Mode++;
FreePool (Info);
}
} else {
//
// Check intersection of display mode
//
ModeBuffer = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION) * CurrentGraphicsOutputMode->MaxMode);
if (ModeBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
MatchedMode = ModeBuffer;
Mode = &Private->GraphicsOutputModeBuffer[0];
for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
Match = FALSE;
for (NumberIndex = 0; NumberIndex < GraphicsOutput->Mode->MaxMode; NumberIndex++) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) NumberIndex, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
return Status;
}
if ((Info->HorizontalResolution == Mode->HorizontalResolution) &&
(Info->VerticalResolution == Mode->VerticalResolution)) {
Match = TRUE;
FreePool (Info);
break;
}
FreePool (Info);
}
if (Match) {
AlreadyExist = FALSE;
for (Info = ModeBuffer; Info < MatchedMode; Info++) {
if ((Info->HorizontalResolution == Mode->HorizontalResolution) &&
(Info->VerticalResolution == Mode->VerticalResolution)) {
AlreadyExist = TRUE;
break;
}
}
if (!AlreadyExist) {
CopyMem (MatchedMode, Mode, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
//
// Physical frame buffer is no longer available, change PixelFormat to PixelBltOnly
//
MatchedMode->Version = 0;
MatchedMode->PixelFormat = PixelBltOnly;
ZeroMem (&MatchedMode->PixelInformation, sizeof (EFI_PIXEL_BITMASK));
MatchedMode++;
}
}
Mode++;
}
//
// Drop the old mode buffer, assign it to a new one
//
FreePool (Private->GraphicsOutputModeBuffer);
Private->GraphicsOutputModeBuffer = ModeBuffer;
//
// Physical frame buffer is no longer available when there are more than one physical GOP devices
//
CurrentGraphicsOutputMode->MaxMode = (UINT32) (((UINTN) MatchedMode - (UINTN) ModeBuffer) / sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
CurrentGraphicsOutputMode->Info->PixelFormat = PixelBltOnly;
ZeroMem (&CurrentGraphicsOutputMode->Info->PixelInformation, sizeof (EFI_PIXEL_BITMASK));
CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
CurrentGraphicsOutputMode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
CurrentGraphicsOutputMode->FrameBufferSize = 0;
}
//
// Graphics console driver can ensure the same mode for all GOP devices
//
for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
Mode = &Private->GraphicsOutputModeBuffer[Index];
if ((Mode->HorizontalResolution == GraphicsOutput->Mode->Info->HorizontalResolution) &&
(Mode->VerticalResolution == GraphicsOutput->Mode->Info->VerticalResolution)) {
CurrentIndex = Index;
break;
}
}
if (Index >= CurrentGraphicsOutputMode->MaxMode) {
//
// if user defined mode is not found, set to default mode 800x600
//
for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
Mode = &Private->GraphicsOutputModeBuffer[Index];
if ((Mode->HorizontalResolution == 800) && (Mode->VerticalResolution == 600)) {
CurrentIndex = Index;
break;
}
}
}
}
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Graphics console driver can ensure the same mode for all GOP devices
// so we can get the current mode from this video device
//
UgaDraw->GetMode (
UgaDraw,
&UgaHorizontalResolution,
&UgaVerticalResolution,
&UgaColorDepth,
&UgaRefreshRate
);
CurrentGraphicsOutputMode->MaxMode = 1;
Info = CurrentGraphicsOutputMode->Info;
Info->Version = 0;
Info->HorizontalResolution = UgaHorizontalResolution;
Info->VerticalResolution = UgaVerticalResolution;
Info->PixelFormat = PixelBltOnly;
Info->PixelsPerScanLine = UgaHorizontalResolution;
CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
CurrentGraphicsOutputMode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
CurrentGraphicsOutputMode->FrameBufferSize = 0;
//
// Update the private mode buffer
//
CopyMem (&Private->GraphicsOutputModeBuffer[0], Info, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
//
// Only mode 0 is available to be set
//
CurrentIndex = 0;
}
Done:
if (GraphicsOutput != NULL) {
Private->CurrentNumberOfGraphicsOutput++;
}
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
Private->CurrentNumberOfUgaDraw++;
}
//
// Force GraphicsOutput mode to be set,
// regardless whether the console is in EfiConsoleControlScreenGraphics or EfiConsoleControlScreenText mode
//
Private->HardwareNeedsStarting = TRUE;
//
// Current mode number may need update now, so set it to an invalid mode number
//
CurrentGraphicsOutputMode->Mode = 0xffff;
//
// Graphics console can ensure all GOP devices have the same mode which can be taken as current mode.
//
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, (UINT32) CurrentIndex);
//
// If user defined mode is not valid for UGA, set to the default mode 800x600.
//
if (EFI_ERROR(Status)) {
(Private->GraphicsOutputModeBuffer[0]).HorizontalResolution = 800;
(Private->GraphicsOutputModeBuffer[0]).VerticalResolution = 600;
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, 0);
}
return Status;
}
/**
This routine will get the current console mode information (column, row)
from ConsoleOutMode variable and set it; if the variable does not exist,
set to user defined console mode.
None
@return None
**/
VOID
ConsplitterSetConsoleOutMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
)
{
UINTN Col;
UINTN Row;
UINTN Mode;
UINTN PreferMode;
UINTN BaseMode;
UINTN ModeInfoSize;
UINTN MaxMode;
EFI_STATUS Status;
CONSOLE_OUT_MODE *ModeInfo;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
PreferMode = 0xFF;
BaseMode = 0xFF;
TextOut = &Private->TextOut;
MaxMode = (UINTN) (TextOut->Mode->MaxMode);
ModeInfoSize = sizeof (CONSOLE_OUT_MODE);
ModeInfo = AllocateZeroPool (sizeof(CONSOLE_OUT_MODE));
ASSERT(ModeInfo != NULL);
Status = gRT->GetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
NULL,
&ModeInfoSize,
ModeInfo
);
//
// Set to the default mode 80 x 25 required by EFI/UEFI spec;
// user can also define other valid default console mode here.
//
if (EFI_ERROR(Status)) {
ModeInfo->Column = 80;
ModeInfo->Row = 25;
Status = gRT->SetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (CONSOLE_OUT_MODE),
ModeInfo
);
}
for (Mode = 0; Mode < MaxMode; Mode++) {
Status = TextOut->QueryMode (TextOut, Mode, &Col, &Row);
if (!EFI_ERROR(Status)) {
if (Col == ModeInfo->Column && Row == ModeInfo->Row) {
PreferMode = Mode;
}
if (Col == 80 && Row == 25) {
BaseMode = Mode;
}
}
}
Status = TextOut->SetMode (TextOut, PreferMode);
//
// if current mode setting is failed, default 80x25 mode will be set.
//
if (EFI_ERROR(Status)) {
Status = TextOut->SetMode (TextOut, BaseMode);
ASSERT(!EFI_ERROR(Status));
ModeInfo->Column = 80;
ModeInfo->Row = 25;
//
// Update ConOutMode variable
//
Status = gRT->SetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (CONSOLE_OUT_MODE),
ModeInfo
);
}
gBS->FreePool (ModeInfo);
}
/**
Add Text Output Device in Consplitter Text Output list.
@param Private Text Out Splitter pointer.
@param TextOut Simple Text Output protocol pointer.
@param GraphicsOutput Graphics Output protocol pointer.
@param UgaDraw UGA Draw protocol pointer.
@retval EFI_SUCCESS Text Output Device added successfully.
@retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
**/
EFI_STATUS
ConSplitterTextOutAddDevice (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut,
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
)
{
EFI_STATUS Status;
UINTN CurrentNumOfConsoles;
INT32 CurrentMode;
INT32 MaxMode;
UINT32 UgaHorizontalResolution;
UINT32 UgaVerticalResolution;
UINT32 UgaColorDepth;
UINT32 UgaRefreshRate;
TEXT_OUT_AND_GOP_DATA *TextAndGop;
Status = EFI_SUCCESS;
CurrentNumOfConsoles = Private->CurrentNumberOfConsoles;
//
// If the Text Out List is full, enlarge it by calling growbuffer().
//
while (CurrentNumOfConsoles >= Private->TextOutListCount) {
Status = ConSplitterGrowBuffer (
sizeof (TEXT_OUT_AND_GOP_DATA),
&Private->TextOutListCount,
(VOID **) &Private->TextOutList
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
//
// Also need to reallocate the TextOutModeMap table
//
Status = ConSplitterGrowMapTable (Private);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
}
TextAndGop = &Private->TextOutList[CurrentNumOfConsoles];
TextAndGop->TextOut = TextOut;
TextAndGop->GraphicsOutput = GraphicsOutput;
TextAndGop->UgaDraw = UgaDraw;
if ((GraphicsOutput == NULL) && (UgaDraw == NULL)) {
//
// If No GOP/UGA device then use the ConOut device
//
TextAndGop->TextOutEnabled = TRUE;
} else {
//
// If GOP/UGA device use ConOut device only used if screen is in Text mode
//
TextAndGop->TextOutEnabled = (BOOLEAN) (Private->ConsoleOutputMode == EfiConsoleControlScreenText);
}
if (CurrentNumOfConsoles == 0) {
//
// Add the first device's output mode to console splitter's mode list
//
Status = ConSplitterAddOutputMode (Private, TextOut);
} else {
ConSplitterSyncOutputMode (Private, TextOut);
}
Private->CurrentNumberOfConsoles++;
//
// Scan both TextOutList, for the intersection TextOut device
// maybe both ConOut and StdErr incorporate the same Text Out
// device in them, thus the output of both should be synced.
//
ConSplitterGetIntersectionBetweenConOutAndStrErr ();
CurrentMode = Private->TextOutMode.Mode;
MaxMode = Private->TextOutMode.MaxMode;
ASSERT (MaxMode >= 1);
//
// Update DevNull mode according to current video device
//
if (FeaturePcdGet (PcdConOutGopSupport)) {
if ((GraphicsOutput != NULL) || (UgaDraw != NULL)) {
ConSplitterAddGraphicsOutputMode (Private, GraphicsOutput, UgaDraw);
}
}
if (FeaturePcdGet (PcdConOutUgaSupport)) {
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
Status = UgaDraw->GetMode (
UgaDraw,
&UgaHorizontalResolution,
&UgaVerticalResolution,
&UgaColorDepth,
&UgaRefreshRate
);
if (!EFI_ERROR (Status)) {
Status = ConSpliterUgaDrawSetMode (
&Private->UgaDraw,
UgaHorizontalResolution,
UgaVerticalResolution,
UgaColorDepth,
UgaRefreshRate
);
}
//
// If GetMode/SetMode is failed, set to 800x600 mode
//
if(EFI_ERROR (Status)) {
Status = ConSpliterUgaDrawSetMode (
&Private->UgaDraw,
800,
600,
32,
60
);
}
}
}
if (Private->ConsoleOutputMode == EfiConsoleControlScreenGraphics && GraphicsOutput != NULL) {
//
// We just added a new GOP or UGA device in graphics mode
//
if (FeaturePcdGet (PcdConOutGopSupport)) {
DevNullGopSync (Private, TextAndGop->GraphicsOutput, TextAndGop->UgaDraw);
} else if (FeaturePcdGet (PcdConOutUgaSupport)) {
DevNullUgaSync (Private, TextAndGop->GraphicsOutput, TextAndGop->UgaDraw);
}
} else if ((CurrentMode >= 0) && ((GraphicsOutput != NULL) || (UgaDraw != NULL)) && (CurrentMode < Private->TextOutMode.MaxMode)) {
//
// The new console supports the same mode of the current console so sync up
//
DevNullSyncStdOut (Private);
} else {
//
// If ConOut, then set the mode to Mode #0 which us 80 x 25
//
Private->TextOut.SetMode (&Private->TextOut, 0);
}
//
// After adding new console device, all existing console devices should be
// synced to the current shared mode.
//
ConsplitterSetConsoleOutMode (Private);
return Status;
}
/**
Remove Text Out Device in Consplitter Text Out list.
@param Private Text Out Splitter pointer.
@param TextOut Simple Text Output Pointer protocol pointer.
@retval EFI_SUCCESS Text Out Device removed successfully.
@retval EFI_NOT_FOUND No Text Out Device found.
**/
EFI_STATUS
ConSplitterTextOutDeleteDevice (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
)
{
INT32 Index;
UINTN CurrentNumOfConsoles;
TEXT_OUT_AND_GOP_DATA *TextOutList;
EFI_STATUS Status;
//
// Remove the specified text-out device data structure from the Text out List,
// and rearrange the remaining data structures in the Text out List.
//
CurrentNumOfConsoles = Private->CurrentNumberOfConsoles;
Index = (INT32) CurrentNumOfConsoles - 1;
TextOutList = Private->TextOutList;
while (Index >= 0) {
if (TextOutList->TextOut == TextOut) {
CopyMem (TextOutList, TextOutList + 1, sizeof (TEXT_OUT_AND_GOP_DATA) * Index);
CurrentNumOfConsoles--;
if (TextOutList->UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
Private->CurrentNumberOfUgaDraw--;
}
if (TextOutList->GraphicsOutput != NULL) {
Private->CurrentNumberOfGraphicsOutput--;
}
break;
}
Index--;
TextOutList++;
}
//
// The specified TextOut is not managed by the ConSplitter driver
//
if (Index < 0) {
return EFI_NOT_FOUND;
}
if (CurrentNumOfConsoles == 0) {
//
// If the number of consoles is zero clear the Dev NULL device
//
Private->CurrentNumberOfConsoles = 0;
Private->TextOutMode.MaxMode = 1;
Private->TextOutQueryData[0].Columns = 80;
Private->TextOutQueryData[0].Rows = 25;
DevNullTextOutSetMode (Private, 0);
return EFI_SUCCESS;
}
//
// Max Mode is realy an intersection of the QueryMode command to all
// devices. So we must copy the QueryMode of the first device to
// QueryData.
//
ZeroMem (
Private->TextOutQueryData,
Private->TextOutQueryDataCount * sizeof (TEXT_OUT_SPLITTER_QUERY_DATA)
);
FreePool (Private->TextOutModeMap);
Private->TextOutModeMap = NULL;
TextOutList = Private->TextOutList;
//
// Add the first TextOut to the QueryData array and ModeMap table
//
Status = ConSplitterAddOutputMode (Private, TextOutList->TextOut);
//
// Now add one by one
//
Index = 1;
Private->CurrentNumberOfConsoles = 1;
TextOutList++;
while ((UINTN) Index < CurrentNumOfConsoles) {
ConSplitterSyncOutputMode (Private, TextOutList->TextOut);
Index++;
Private->CurrentNumberOfConsoles++;
TextOutList++;
}
ConSplitterGetIntersectionBetweenConOutAndStrErr ();
return Status;
}
//
// ConSplitter TextIn member functions
//
/**
Reset the input device and optionaly run diagnostics
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInReset (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
Private->KeyEventSignalState = FALSE;
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
Status = Private->TextInList[Index]->Reset (
Private->TextInList[Index],
ExtendedVerification
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
return ReturnStatus;
}
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@param This Protocol instance pointer.
@param Key Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR The keydtroke information was not returned due
to hardware errors.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInPrivateReadKeyStroke (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
OUT EFI_INPUT_KEY *Key
)
{
EFI_STATUS Status;
UINTN Index;
EFI_INPUT_KEY CurrentKey;
Key->UnicodeChar = 0;
Key->ScanCode = SCAN_NULL;
//
// if no physical console input device exists, return EFI_NOT_READY;
// if any physical console input device has key input,
// return the key and EFI_SUCCESS.
//
for (Index = 0; Index < Private->CurrentNumberOfConsoles; Index++) {
Status = Private->TextInList[Index]->ReadKeyStroke (
Private->TextInList[Index],
&CurrentKey
);
if (!EFI_ERROR (Status)) {
*Key = CurrentKey;
return Status;
}
}
return EFI_NOT_READY;
}
/**
Return TRUE if StdIn is locked. The ConIn device on the virtual handle is
the only device locked.
NONE
@retval TRUE StdIn locked
@retval FALSE StdIn working normally
**/
BOOLEAN
ConSpliterConssoleControlStdInLocked (
VOID
)
{
return mConIn.PasswordEnabled;
}
/**
This timer event will fire when StdIn is locked. It will check the key
sequence on StdIn to see if it matches the password. Any error in the
password will cause the check to reset. As long a mConIn.PasswordEnabled is
TRUE the StdIn splitter will not report any input.
@param Event The Event this notify function registered to.
@param Context Pointer to the context data registerd to the
Event.
@return None
**/
VOID
EFIAPI
ConSpliterConsoleControlLockStdInEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_INPUT_KEY Key;
CHAR16 BackSpaceString[2];
CHAR16 SpaceString[2];
do {
Status = ConSplitterTextInPrivateReadKeyStroke (&mConIn, &Key);
if (!EFI_ERROR (Status)) {
//
// if it's an ENTER, match password
//
if ((Key.UnicodeChar == CHAR_CARRIAGE_RETURN) && (Key.ScanCode == SCAN_NULL)) {
mConIn.PwdAttempt[mConIn.PwdIndex] = CHAR_NULL;
if (StrCmp (mConIn.Password, mConIn.PwdAttempt)) {
//
// Password not match
//
ConSplitterTextOutOutputString (&mConOut.TextOut, (CHAR16 *) L"\n\rPassword not correct\n\r");
mConIn.PwdIndex = 0;
} else {
//
// Key matches password sequence
//
gBS->SetTimer (mConIn.LockEvent, TimerPeriodic, 0);
mConIn.PasswordEnabled = FALSE;
Status = EFI_NOT_READY;
}
} else if ((Key.UnicodeChar == CHAR_BACKSPACE) && (Key.ScanCode == SCAN_NULL)) {
//
// BackSpace met
//
if (mConIn.PwdIndex > 0) {
BackSpaceString[0] = CHAR_BACKSPACE;
BackSpaceString[1] = 0;
SpaceString[0] = ' ';
SpaceString[1] = 0;
ConSplitterTextOutOutputString (&mConOut.TextOut, BackSpaceString);
ConSplitterTextOutOutputString (&mConOut.TextOut, SpaceString);
ConSplitterTextOutOutputString (&mConOut.TextOut, BackSpaceString);
mConIn.PwdIndex--;
}
} else if ((Key.ScanCode == SCAN_NULL) && (Key.UnicodeChar >= 32)) {
//
// If it's not an ENTER, neigher a function key, nor a CTRL-X or ALT-X, record the input
//
if (mConIn.PwdIndex < (MAX_STD_IN_PASSWORD - 1)) {
if (mConIn.PwdIndex == 0) {
ConSplitterTextOutOutputString (&mConOut.TextOut, (CHAR16 *) L"\n\r");
}
ConSplitterTextOutOutputString (&mConOut.TextOut, (CHAR16 *) L"*");
mConIn.PwdAttempt[mConIn.PwdIndex] = Key.UnicodeChar;
mConIn.PwdIndex++;
}
}
}
} while (!EFI_ERROR (Status));
}
/**
If Password is NULL unlock the password state variable and set the event
timer. If the Password is too big return an error. If the Password is valid
Copy the Password and enable state variable and then arm the periodic timer
@retval EFI_SUCCESS Lock the StdIn device
@retval EFI_INVALID_PARAMETER Password is NULL
@retval EFI_OUT_OF_RESOURCES Buffer allocation to store the password fails
**/
EFI_STATUS
EFIAPI
ConSpliterConsoleControlLockStdIn (
IN EFI_CONSOLE_CONTROL_PROTOCOL *This,
IN CHAR16 *Password
)
{
if (Password == NULL) {
return EFI_INVALID_PARAMETER;
}
if (StrLen (Password) >= MAX_STD_IN_PASSWORD) {
//
// Currently have a max password size
//
return EFI_OUT_OF_RESOURCES;
}
//
// Save the password, initialize state variables and arm event timer
//
StrCpy (mConIn.Password, Password);
mConIn.PasswordEnabled = TRUE;
mConIn.PwdIndex = 0;
gBS->SetTimer (mConIn.LockEvent, TimerPeriodic, (10000 * 25));
return EFI_SUCCESS;
}
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
If the ConIn is password locked make it look like no keystroke is availible
@param This Protocol instance pointer.
@param Key Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR The keydtroke information was not returned due
to hardware errors.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInReadKeyStroke (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
OUT EFI_INPUT_KEY *Key
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return EFI_NOT_READY;
}
Private->KeyEventSignalState = FALSE;
return ConSplitterTextInPrivateReadKeyStroke (Private, Key);
}
/**
This event agregates all the events of the ConIn devices in the spliter.
If the ConIn is password locked then return.
If any events of physical ConIn devices are signaled, signal the ConIn
spliter event. This will cause the calling code to call
ConSplitterTextInReadKeyStroke ().
@param Event The Event assoicated with callback.
@param Context Context registered when Event was created.
@return None
**/
VOID
EFIAPI
ConSplitterTextInWaitForKey (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = (TEXT_IN_SPLITTER_PRIVATE_DATA *) Context;
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return ;
}
//
// if KeyEventSignalState is flagged before, and not cleared by Reset() or ReadKeyStroke()
//
if (Private->KeyEventSignalState) {
gBS->SignalEvent (Event);
return ;
}
//
// if any physical console input device has key input, signal the event.
//
for (Index = 0; Index < Private->CurrentNumberOfConsoles; Index++) {
Status = gBS->CheckEvent (Private->TextInList[Index]->WaitForKey);
if (!EFI_ERROR (Status)) {
gBS->SignalEvent (Event);
Private->KeyEventSignalState = TRUE;
}
}
}
/**
@param RegsiteredData A pointer to a buffer that is filled in with the
keystroke state data for the key that was
registered.
@param InputData A pointer to a buffer that is filled in with the
keystroke state data for the key that was
pressed.
@retval TRUE Key be pressed matches a registered key.
@retval FLASE Match failed.
**/
BOOLEAN
IsKeyRegistered (
IN EFI_KEY_DATA *RegsiteredData,
IN EFI_KEY_DATA *InputData
)
{
ASSERT (RegsiteredData != NULL && InputData != NULL);
if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||
(RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {
return FALSE;
}
//
// Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.
//
if (RegsiteredData->KeyState.KeyShiftState != 0 &&
RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {
return FALSE;
}
if (RegsiteredData->KeyState.KeyToggleState != 0 &&
RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {
return FALSE;
}
return TRUE;
}
//
// Simple Text Input Ex protocol functions
//
/**
Reset the input device and optionaly run diagnostics
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInResetEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
Private->KeyEventSignalState = FALSE;
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfExConsoles; Index++) {
Status = Private->TextInExList[Index]->Reset (
Private->TextInExList[Index],
ExtendedVerification
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
return ReturnStatus;
}
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@param This Protocol instance pointer.
@param KeyData A pointer to a buffer that is filled in with the
keystroke state data for the key that was
pressed.
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR The keystroke information was not returned due
to hardware errors.
@retval EFI_INVALID_PARAMETER KeyData is NULL.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInReadKeyStrokeEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
OUT EFI_KEY_DATA *KeyData
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
EFI_STATUS Status;
UINTN Index;
EFI_KEY_DATA CurrentKeyData;
if (KeyData == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return EFI_NOT_READY;
}
Private->KeyEventSignalState = FALSE;
KeyData->Key.UnicodeChar = 0;
KeyData->Key.ScanCode = SCAN_NULL;
//
// if no physical console input device exists, return EFI_NOT_READY;
// if any physical console input device has key input,
// return the key and EFI_SUCCESS.
//
for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
Status = Private->TextInExList[Index]->ReadKeyStrokeEx (
Private->TextInExList[Index],
&CurrentKeyData
);
if (!EFI_ERROR (Status)) {
CopyMem (KeyData, &CurrentKeyData, sizeof (CurrentKeyData));
return Status;
}
}
return EFI_NOT_READY;
}
/**
Set certain state for the input device.
@param This Protocol instance pointer.
@param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
state for the input device.
@retval EFI_SUCCESS The device state was set successfully.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and
could not have the setting adjusted.
@retval EFI_UNSUPPORTED The device does not have the ability to set its
state.
@retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInSetState (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_TOGGLE_STATE *KeyToggleState
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
EFI_STATUS Status;
UINTN Index;
if (KeyToggleState == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// if no physical console input device exists, return EFI_SUCCESS;
// otherwise return the status of setting state of physical console input device
//
for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
Status = Private->TextInExList[Index]->SetState (
Private->TextInExList[Index],
KeyToggleState
);
if (EFI_ERROR (Status)) {
return Status;
}
}
return EFI_SUCCESS;
}
/**
Register a notification function for a particular keystroke for the input device.
@param This Protocol instance pointer.
@param KeyData A pointer to a buffer that is filled in with the
keystroke information data for the key that was
pressed.
@param KeyNotificationFunction Points to the function to be called when the key
sequence is typed specified by KeyData.
@param NotifyHandle Points to the unique handle assigned to the
registered notification.
@retval EFI_SUCCESS The notification function was registered
successfully.
@retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data
structures.
@retval EFI_INVALID_PARAMETER KeyData or NotifyHandle is NULL.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInRegisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_DATA *KeyData,
IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
OUT EFI_HANDLE *NotifyHandle
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
EFI_STATUS Status;
UINTN Index;
TEXT_IN_EX_SPLITTER_NOTIFY *NewNotify;
LIST_ENTRY *Link;
TEXT_IN_EX_SPLITTER_NOTIFY *CurrentNotify;
if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// if no physical console input device exists,
// return EFI_SUCCESS directly.
//
if (Private->CurrentNumberOfExConsoles <= 0) {
return EFI_SUCCESS;
}
//
// Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
//
for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
CurrentNotify = CR (
Link,
TEXT_IN_EX_SPLITTER_NOTIFY,
NotifyEntry,
TEXT_IN_EX_SPLITTER_NOTIFY_SIGNATURE
);
if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
*NotifyHandle = CurrentNotify->NotifyHandle;
return EFI_SUCCESS;
}
}
}
//
// Allocate resource to save the notification function
//
NewNotify = (TEXT_IN_EX_SPLITTER_NOTIFY *) AllocateZeroPool (sizeof (TEXT_IN_EX_SPLITTER_NOTIFY));
if (NewNotify == NULL) {
return EFI_OUT_OF_RESOURCES;
}
NewNotify->NotifyHandleList = (EFI_HANDLE *) AllocateZeroPool (sizeof (EFI_HANDLE) * Private->CurrentNumberOfExConsoles);
if (NewNotify->NotifyHandleList == NULL) {
gBS->FreePool (NewNotify);
return EFI_OUT_OF_RESOURCES;
}
NewNotify->Signature = TEXT_IN_EX_SPLITTER_NOTIFY_SIGNATURE;
NewNotify->KeyNotificationFn = KeyNotificationFunction;
CopyMem (&NewNotify->KeyData, KeyData, sizeof (KeyData));
//
// Return the wrong status of registering key notify of
// physical console input device if meet problems
//
for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
Status = Private->TextInExList[Index]->RegisterKeyNotify (
Private->TextInExList[Index],
KeyData,
KeyNotificationFunction,
&NewNotify->NotifyHandleList[Index]
);
if (EFI_ERROR (Status)) {
gBS->FreePool (NewNotify->NotifyHandleList);
gBS->FreePool (NewNotify);
return Status;
}
}
//
// Use gSimpleTextInExNotifyGuid to get a valid EFI_HANDLE
//
Status = gBS->InstallMultipleProtocolInterfaces (
&NewNotify->NotifyHandle,
&gSimpleTextInExNotifyGuid,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
InsertTailList (&mConIn.NotifyList, &NewNotify->NotifyEntry);
*NotifyHandle = NewNotify->NotifyHandle;
return EFI_SUCCESS;
}
/**
Remove a registered notification function from a particular keystroke.
@param This Protocol instance pointer.
@param NotificationHandle The handle of the notification function being
unregistered.
@retval EFI_SUCCESS The notification function was unregistered
successfully.
@retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
@retval EFI_NOT_FOUND Can not find the matching entry in database.
**/
EFI_STATUS
EFIAPI
ConSplitterTextInUnregisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_HANDLE NotificationHandle
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
EFI_STATUS Status;
UINTN Index;
TEXT_IN_EX_SPLITTER_NOTIFY *CurrentNotify;
LIST_ENTRY *Link;
if (NotificationHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = gBS->OpenProtocol (
NotificationHandle,
&gSimpleTextInExNotifyGuid,
NULL,
NULL,
NULL,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_INVALID_PARAMETER;
}
Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// if no physical console input device exists,
// return EFI_SUCCESS directly.
//
if (Private->CurrentNumberOfExConsoles <= 0) {
return EFI_SUCCESS;
}
for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
CurrentNotify = CR (Link, TEXT_IN_EX_SPLITTER_NOTIFY, NotifyEntry, TEXT_IN_EX_SPLITTER_NOTIFY_SIGNATURE);
if (CurrentNotify->NotifyHandle == NotificationHandle) {
for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
Status = Private->TextInExList[Index]->UnregisterKeyNotify (
Private->TextInExList[Index],
CurrentNotify->NotifyHandleList[Index]
);
if (EFI_ERROR (Status)) {
return Status;
}
}
RemoveEntryList (&CurrentNotify->NotifyEntry);
Status = gBS->UninstallMultipleProtocolInterfaces (
CurrentNotify->NotifyHandle,
&gSimpleTextInExNotifyGuid,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
gBS->FreePool (CurrentNotify->NotifyHandleList);
gBS->FreePool (CurrentNotify);
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Reset the input device and optionaly run diagnostics
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerReset (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_SIMPLE_POINTER_THIS (This);
Private->InputEventSignalState = FALSE;
if (Private->CurrentNumberOfPointers == 0) {
return EFI_SUCCESS;
}
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfPointers; Index++) {
Status = Private->PointerList[Index]->Reset (
Private->PointerList[Index],
ExtendedVerification
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
return ReturnStatus;
}
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@param This Protocol instance pointer. State -
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR The keydtroke information was not returned due
to hardware errors.
**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerPrivateGetState (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN OUT EFI_SIMPLE_POINTER_STATE *State
)
{
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
UINTN Index;
EFI_SIMPLE_POINTER_STATE CurrentState;
State->RelativeMovementX = 0;
State->RelativeMovementY = 0;
State->RelativeMovementZ = 0;
State->LeftButton = FALSE;
State->RightButton = FALSE;
//
// if no physical console input device exists, return EFI_NOT_READY;
// if any physical console input device has key input,
// return the key and EFI_SUCCESS.
//
ReturnStatus = EFI_NOT_READY;
for (Index = 0; Index < Private->CurrentNumberOfPointers; Index++) {
Status = Private->PointerList[Index]->GetState (
Private->PointerList[Index],
&CurrentState
);
if (!EFI_ERROR (Status)) {
if (ReturnStatus == EFI_NOT_READY) {
ReturnStatus = EFI_SUCCESS;
}
if (CurrentState.LeftButton) {
State->LeftButton = TRUE;
}
if (CurrentState.RightButton) {
State->RightButton = TRUE;
}
if (CurrentState.RelativeMovementX != 0 && Private->PointerList[Index]->Mode->ResolutionX != 0) {
State->RelativeMovementX += (CurrentState.RelativeMovementX * (INT32) Private->SimplePointerMode.ResolutionX) / (INT32) Private->PointerList[Index]->Mode->ResolutionX;
}
if (CurrentState.RelativeMovementY != 0 && Private->PointerList[Index]->Mode->ResolutionY != 0) {
State->RelativeMovementY += (CurrentState.RelativeMovementY * (INT32) Private->SimplePointerMode.ResolutionY) / (INT32) Private->PointerList[Index]->Mode->ResolutionY;
}
if (CurrentState.RelativeMovementZ != 0 && Private->PointerList[Index]->Mode->ResolutionZ != 0) {
State->RelativeMovementZ += (CurrentState.RelativeMovementZ * (INT32) Private->SimplePointerMode.ResolutionZ) / (INT32) Private->PointerList[Index]->Mode->ResolutionZ;
}
} else if (Status == EFI_DEVICE_ERROR) {
ReturnStatus = EFI_DEVICE_ERROR;
}
}
return ReturnStatus;
}
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
If the ConIn is password locked make it look like no keystroke is availible
@param This A pointer to protocol instance.
@param State A pointer to state information on the pointer device
@retval EFI_SUCCESS The keystroke information was returned in State.
@retval EFI_NOT_READY There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR The keydtroke information was not returned due
to hardware errors.
**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerGetState (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN OUT EFI_SIMPLE_POINTER_STATE *State
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_SIMPLE_POINTER_THIS (This);
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return EFI_NOT_READY;
}
Private->InputEventSignalState = FALSE;
return ConSplitterSimplePointerPrivateGetState (Private, State);
}
/**
This event agregates all the events of the ConIn devices in the spliter.
If the ConIn is password locked then return.
If any events of physical ConIn devices are signaled, signal the ConIn
spliter event. This will cause the calling code to call
ConSplitterTextInReadKeyStroke ().
@param Event The Event assoicated with callback.
@param Context Context registered when Event was created.
@return None
**/
VOID
EFIAPI
ConSplitterSimplePointerWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = (TEXT_IN_SPLITTER_PRIVATE_DATA *) Context;
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return ;
}
//
// if InputEventSignalState is flagged before, and not cleared by Reset() or ReadKeyStroke()
//
if (Private->InputEventSignalState) {
gBS->SignalEvent (Event);
return ;
}
//
// if any physical console input device has key input, signal the event.
//
for (Index = 0; Index < Private->CurrentNumberOfPointers; Index++) {
Status = gBS->CheckEvent (Private->PointerList[Index]->WaitForInput);
if (!EFI_ERROR (Status)) {
gBS->SignalEvent (Event);
Private->InputEventSignalState = TRUE;
}
}
}
//
// Absolute Pointer Protocol functions
//
/**
Resets the pointer device hardware.
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and
could not be reset.
**/
EFI_STATUS
EFIAPI
ConSplitterAbsolutePointerReset (
IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_ABSOLUTE_POINTER_THIS (This);
Private->AbsoluteInputEventSignalState = FALSE;
if (Private->CurrentNumberOfAbsolutePointers == 0) {
return EFI_SUCCESS;
}
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
Status = Private->AbsolutePointerList[Index]->Reset (
Private->AbsolutePointerList[Index],
ExtendedVerification
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
return ReturnStatus;
}
/**
Retrieves the current state of a pointer device.
@param This Protocol instance pointer.
@param State A pointer to the state information on the
pointer device.
@retval EFI_SUCCESS The state of the pointer device was returned in
State..
@retval EFI_NOT_READY The state of the pointer device has not changed
since the last call to GetState().
@retval EFI_DEVICE_ERROR A device error occurred while attempting to
retrieve the pointer device's current state.
**/
EFI_STATUS
EFIAPI
ConSplitterAbsolutePointerGetState (
IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
IN OUT EFI_ABSOLUTE_POINTER_STATE *State
)
{
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
UINTN Index;
EFI_ABSOLUTE_POINTER_STATE CurrentState;
Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_ABSOLUTE_POINTER_THIS (This);
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return EFI_NOT_READY;
}
Private->AbsoluteInputEventSignalState = FALSE;
State->CurrentX = 0;
State->CurrentY = 0;
State->CurrentZ = 0;
State->ActiveButtons = 0;
//
// if no physical pointer device exists, return EFI_NOT_READY;
// if any physical pointer device has changed state,
// return the state and EFI_SUCCESS.
//
ReturnStatus = EFI_NOT_READY;
for (Index = 0; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
Status = Private->AbsolutePointerList[Index]->GetState (
Private->AbsolutePointerList[Index],
&CurrentState
);
if (!EFI_ERROR (Status)) {
if (ReturnStatus == EFI_NOT_READY) {
ReturnStatus = EFI_SUCCESS;
}
State->ActiveButtons = CurrentState.ActiveButtons;
if (!(Private->AbsolutePointerMode.AbsoluteMinX == 0 && Private->AbsolutePointerMode.AbsoluteMaxX == 0)) {
State->CurrentX = CurrentState.CurrentX;
}
if (!(Private->AbsolutePointerMode.AbsoluteMinY == 0 && Private->AbsolutePointerMode.AbsoluteMaxY == 0)) {
State->CurrentY = CurrentState.CurrentY;
}
if (!(Private->AbsolutePointerMode.AbsoluteMinZ == 0 && Private->AbsolutePointerMode.AbsoluteMaxZ == 0)) {
State->CurrentZ = CurrentState.CurrentZ;
}
} else if (Status == EFI_DEVICE_ERROR) {
ReturnStatus = EFI_DEVICE_ERROR;
}
}
return ReturnStatus;
}
/**
This event agregates all the events of the pointer devices in the splitter.
If the ConIn is password locked then return.
If any events of physical pointer devices are signaled, signal the pointer
splitter event. This will cause the calling code to call
ConSplitterAbsolutePointerGetState ().
@param Event The Event assoicated with callback.
@param Context Context registered when Event was created.
@return None
**/
VOID
EFIAPI
ConSplitterAbsolutePointerWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
Private = (TEXT_IN_SPLITTER_PRIVATE_DATA *) Context;
if (Private->PasswordEnabled) {
//
// If StdIn Locked return not ready
//
return ;
}
//
// if AbsoluteInputEventSignalState is flagged before,
// and not cleared by Reset() or GetState(), signal it
//
if (Private->AbsoluteInputEventSignalState) {
gBS->SignalEvent (Event);
return ;
}
//
// if any physical console input device has key input, signal the event.
//
for (Index = 0; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
Status = gBS->CheckEvent (Private->AbsolutePointerList[Index]->WaitForInput);
if (!EFI_ERROR (Status)) {
gBS->SignalEvent (Event);
Private->AbsoluteInputEventSignalState = TRUE;
}
}
}
/**
Reset the text output device hardware and optionaly run diagnostics
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform more exhaustive verfication
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
ConSplitterTextOutReset (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->Reset (
Private->TextOutList[Index].TextOut,
ExtendedVerification
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BLACK));
Status = DevNullTextOutSetMode (Private, 0);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
return ReturnStatus;
}
/**
Write a Unicode string to the output device.
@param This Protocol instance pointer.
@param String The NULL-terminated Unicode string to be
displayed on the output device(s). All output
devices must also support the Unicode drawing
defined in this file.
@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'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
ConSplitterTextOutOutputString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *WString
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
UINTN BackSpaceCount;
EFI_STATUS ReturnStatus;
CHAR16 *TargetString;
This->SetAttribute (This, This->Mode->Attribute);
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
BackSpaceCount = 0;
for (TargetString = WString; *TargetString != L'\0'; TargetString++) {
if (*TargetString == CHAR_BACKSPACE) {
BackSpaceCount++;
}
}
if (BackSpaceCount == 0) {
TargetString = WString;
} else {
TargetString = AllocatePool (sizeof (CHAR16) * (StrLen (WString) + BackSpaceCount + 1));
StrCpy (TargetString, WString);
}
//
// return the worst status met
//
Status = DevNullTextOutOutputString (Private, TargetString);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->OutputString (
Private->TextOutList[Index].TextOut,
TargetString
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
if (BackSpaceCount > 0) {
FreePool (TargetString);
}
return ReturnStatus;
}
/**
Verifies that all characters in a Unicode string can be output to the
target device.
@param This Protocol instance pointer.
@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
ConSplitterTextOutTestString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *WString
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->TestString (
Private->TextOutList[Index].TextOut,
WString
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
//
// There is no DevNullTextOutTestString () since a Unicode buffer would
// always return EFI_SUCCESS.
// ReturnStatus will be EFI_SUCCESS if no consoles are present
//
return ReturnStatus;
}
/**
Returns information for an available text mode that the output device(s)
supports.
@param This Protocol instance pointer.
@param ModeNumber The mode number to return information on.
@param Rows Returns the geometry of the text output device
for the requested ModeNumber.
@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
ConSplitterTextOutQueryMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber,
OUT UINTN *Columns,
OUT UINTN *Rows
)
{
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN CurrentMode;
INT32 *TextOutModeMap;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// Check whether param ModeNumber is valid.
// ModeNumber should be within range 0 ~ MaxMode - 1.
//
if ( (ModeNumber > (UINTN)(((UINT32)-1)>>1)) ) {
return EFI_UNSUPPORTED;
}
if ((INT32) ModeNumber >= This->Mode->MaxMode) {
return EFI_UNSUPPORTED;
}
//
// We get the available mode from mode intersection map if it's available
//
if (Private->TextOutModeMap != NULL) {
TextOutModeMap = Private->TextOutModeMap + Private->TextOutListCount * ModeNumber;
CurrentMode = (UINTN)(*TextOutModeMap);
*Columns = Private->TextOutQueryData[CurrentMode].Columns;
*Rows = Private->TextOutQueryData[CurrentMode].Rows;
} else {
*Columns = Private->TextOutQueryData[ModeNumber].Columns;
*Rows = Private->TextOutQueryData[ModeNumber].Rows;
}
if (*Columns <= 0 && *Rows <= 0) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}
/**
Sets the output device(s) to a specified mode.
@param This Protocol instance pointer.
@param ModeNumber The mode number 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
ConSplitterTextOutSetMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
INT32 *TextOutModeMap;
EFI_STATUS ReturnStatus;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// Check whether param ModeNumber is valid.
// ModeNumber should be within range 0 ~ MaxMode - 1.
//
if ( (ModeNumber > (UINTN)(((UINT32)-1)>>1)) ) {
return EFI_UNSUPPORTED;
}
if ((INT32) ModeNumber >= This->Mode->MaxMode) {
return EFI_UNSUPPORTED;
}
//
// If the mode is being set to the curent mode, then just clear the screen and return.
//
if (Private->TextOutMode.Mode == (INT32) ModeNumber) {
return ConSplitterTextOutClearScreen (This);
}
//
// return the worst status met
//
TextOutModeMap = Private->TextOutModeMap + Private->TextOutListCount * ModeNumber;
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->SetMode (
Private->TextOutList[Index].TextOut,
TextOutModeMap[Index]
);
//
// If this console device is based on a GOP or UGA device, then sync up the bitmap from
// the GOP/UGA splitter and reclear the text portion of the display in the new mode.
//
if ((Private->TextOutList[Index].GraphicsOutput != NULL) || (Private->TextOutList[Index].UgaDraw != NULL)) {
Private->TextOutList[Index].TextOut->ClearScreen (Private->TextOutList[Index].TextOut);
}
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
//
// The DevNull Console will support any possible mode as it allocates memory
//
Status = DevNullTextOutSetMode (Private, ModeNumber);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
return ReturnStatus;
}
/**
Sets the background and foreground colors for the OutputString () and
ClearScreen () functions.
@param This Protocol instance pointer.
@param Attribute The attribute to set. Bits 0..3 are the
foreground color, and bits 4..6 are the
background color. All other bits are undefined
and must be zero. The valid Attributes are
defined in this file.
@retval EFI_SUCCESS The attribute was set.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
the request.
@retval EFI_UNSUPPORTED The attribute requested is not defined.
**/
EFI_STATUS
EFIAPI
ConSplitterTextOutSetAttribute (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Attribute
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// Check whether param Attribute is valid.
//
if ( (Attribute > (UINTN)(((UINT32)-1)>>1)) ) {
return EFI_UNSUPPORTED;
}
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->SetAttribute (
Private->TextOutList[Index].TextOut,
Attribute
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
Private->TextOutMode.Attribute = (INT32) Attribute;
return ReturnStatus;
}
/**
Clears the output device(s) display to the currently selected background
color.
@param This Protocol instance pointer.
@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.
**/
EFI_STATUS
EFIAPI
ConSplitterTextOutClearScreen (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->ClearScreen (Private->TextOutList[Index].TextOut);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
Status = DevNullTextOutClearScreen (Private);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
return ReturnStatus;
}
/**
Sets the current coordinates of the cursor position
@param This Protocol instance pointer.
@param Row the position to set the cursor to. Must be
greater than or equal to zero and less than the
number of columns and rows by QueryMode ().
@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
ConSplitterTextOutSetCursorPosition (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Column,
IN UINTN Row
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
UINTN MaxColumn;
UINTN MaxRow;
INT32 *TextOutModeMap;
INT32 ModeNumber;
INT32 CurrentMode;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
TextOutModeMap = NULL;
ModeNumber = Private->TextOutMode.Mode;
//
// Get current MaxColumn and MaxRow from intersection map
//
if (Private->TextOutModeMap != NULL) {
TextOutModeMap = Private->TextOutModeMap + Private->TextOutListCount * ModeNumber;
CurrentMode = *TextOutModeMap;
} else {
CurrentMode = ModeNumber;
}
MaxColumn = Private->TextOutQueryData[CurrentMode].Columns;
MaxRow = Private->TextOutQueryData[CurrentMode].Rows;
if (Column >= MaxColumn || Row >= MaxRow) {
return EFI_UNSUPPORTED;
}
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->SetCursorPosition (
Private->TextOutList[Index].TextOut,
Column,
Row
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
DevNullTextOutSetCursorPosition (Private, Column, Row);
return ReturnStatus;
}
/**
Makes the cursor visible or invisible
@param This Protocol instance pointer.
@param Visible If TRUE, the cursor is set to be visible. If
FALSE, the cursor is set to be invisible.
@retval EFI_SUCCESS 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 is not in a valid text mode.
**/
EFI_STATUS
EFIAPI
ConSplitterTextOutEnableCursor (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN Visible
)
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
//
// return the worst status met
//
for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
if (Private->TextOutList[Index].TextOutEnabled) {
Status = Private->TextOutList[Index].TextOut->EnableCursor (
Private->TextOutList[Index].TextOut,
Visible
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
DevNullTextOutEnableCursor (Private, Visible);
return ReturnStatus;
}
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