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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 - 2007 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,
{
ConSplitterSimplePointerReset,
ConSplitterSimplePointerGetState,
(EFI_EVENT) NULL,
(EFI_SIMPLE_POINTER_MODE *) NULL
},
{
0x10000,
0x10000,
0x10000,
TRUE,
TRUE
},
0,
(EFI_SIMPLE_POINTER_PROTOCOL **) NULL,
0,
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
};
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,
},
{
ConSpliterGraphicsOutputQueryMode,
ConSpliterGraphicsOutputSetMode,
ConSpliterGraphicsOutputBlt,
NULL
},
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) NULL,
(TEXT_OUT_GOP_MODE *) NULL,
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,
},
{
ConSpliterGraphicsOutputQueryMode,
ConSpliterGraphicsOutputSetMode,
ConSpliterGraphicsOutputBlt,
NULL
},
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) NULL,
(TEXT_OUT_GOP_MODE *) NULL,
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
};
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.
@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
InitializeConSplitter(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install driver model protocol(s).
//
Status = EfiLibInstallAllDriverProtocols (
ImageHandle,
SystemTable,
&gConSplitterConInDriverBinding,
ImageHandle,
&gConSplitterConInComponentName,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallAllDriverProtocols (
ImageHandle,
SystemTable,
&gConSplitterSimplePointerDriverBinding,
NULL,
&gConSplitterSimplePointerComponentName,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallAllDriverProtocols (
ImageHandle,
SystemTable,
&gConSplitterConOutDriverBinding,
NULL,
&gConSplitterConOutComponentName,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
Status = EfiLibInstallAllDriverProtocols (
ImageHandle,
SystemTable,
&gConSplitterStdErrDriverBinding,
NULL,
&gConSplitterStdErrComponentName,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
//
// Call the original Entry Point
//
Status = ConSplitterDriverEntry (ImageHandle, SystemTable);
return Status;
}
EFI_STATUS
EFIAPI
ConSplitterDriverEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Intialize a virtual console device to act as an agrigator of physical console
devices.
Arguments:
ImageHandle - (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
SystemTable - (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
Returns:
EFI_SUCCESS
--*/
{
EFI_STATUS Status;
//
// 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,
&gEfiSimplePointerProtocolGuid,
&mConIn.SimplePointer,
&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)) {
//
// 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
);
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;
}
EFI_STATUS
ConSplitterTextInConstructor (
TEXT_IN_SPLITTER_PRIVATE_DATA *ConInPrivate
)
/*++
Routine Description:
Construct the ConSplitter.
Arguments:
ConInPrivate - A pointer to the TEXT_IN_SPLITTER_PRIVATE_DATA structure.
Returns:
EFI_OUT_OF_RESOURCES - Out of resources.
--*/
{
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);
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;
}
EFI_STATUS
ConSplitterTextOutConstructor (
TEXT_OUT_SPLITTER_PRIVATE_DATA *ConOutPrivate
)
{
EFI_STATUS Status;
//
// Initilize console output splitter's private data.
//
ConOutPrivate->TextOut.Mode = &ConOutPrivate->TextOutMode;
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);
//
// 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
//
if ((ConOutPrivate->GraphicsOutputModeBuffer = AllocateZeroPool (sizeof (TEXT_OUT_GOP_MODE))) == NULL) {
return EFI_OUT_OF_RESOURCES;
}
ConOutPrivate->GraphicsOutputModeBuffer[0].HorizontalResolution = 800;
ConOutPrivate->GraphicsOutputModeBuffer[0].VerticalResolution = 600;
//
// Initialize the following items, theset items remain unchanged in GraphicsOutput->SetMode()
// GraphicsOutputMode->Info->Version, GraphicsOutputMode->Info->PixelFormat
// GraphicsOutputMode->SizeOfInfo, GraphicsOutputMode->FrameBufferBase, GraphicsOutputMode->FrameBufferSize
//
ConOutPrivate->GraphicsOutput.Mode->Info->Version = 0;
ConOutPrivate->GraphicsOutput.Mode->Info->PixelFormat = PixelBltOnly;
ConOutPrivate->GraphicsOutput.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
ConOutPrivate->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) 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;
}
STATIC
EFI_STATUS
ConSplitterSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_GUID *Guid
)
/*++
Routine Description:
Generic Supported Check
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller Handle.
Guid - Guid.
Returns:
EFI_UNSUPPORTED - unsupported.
EFI_SUCCESS - operation is OK.
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterConInDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Console In Supported Check
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_STATUS
--*/
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiConsoleInDeviceGuid
);
}
EFI_STATUS
EFIAPI
ConSplitterSimplePointerDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Standard Error Supported Check
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_STATUS
--*/
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiSimplePointerProtocolGuid
);
}
EFI_STATUS
EFIAPI
ConSplitterConOutDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Console Out Supported Check
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_STATUS
--*/
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiConsoleOutDeviceGuid
);
}
EFI_STATUS
EFIAPI
ConSplitterStdErrDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Standard Error Supported Check
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_STATUS
--*/
{
return ConSplitterSupported (
This,
ControllerHandle,
&gEfiStandardErrorDeviceGuid
);
}
STATIC
EFI_STATUS
EFIAPI
ConSplitterStart (
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
)
/*++
Routine Description:
Start ConSplitter on ControllerHandle, and create the virtual
agrogated console device on first call Start for a SimpleTextIn handle.
Arguments:
(Standard DriverBinding Protocol Start() function)
Returns:
EFI_ERROR if a SimpleTextIn protocol is not started.
--*/
{
EFI_STATUS Status;
VOID *Instance;
//
// Check to see whether the handle has the ConsoleInDevice GUID 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
);
}
EFI_STATUS
EFIAPI
ConSplitterConInDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start ConSplitter on ControllerHandle, and create the virtual
agrogated console device on first call Start for a SimpleTextIn handle.
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_STATUS
EFI_ERROR if a SimpleTextIn protocol is not started.
--*/
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;
//
// 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;
}
return ConSplitterTextInAddDevice (&mConIn, TextIn);
}
EFI_STATUS
EFIAPI
ConSplitterSimplePointerDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start ConSplitter on ControllerHandle, and create the virtual
agrogated console device on first call Start for a SimpleTextIn handle.
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_ERROR if a SimpleTextIn protocol is not started.
--*/
{
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);
}
EFI_STATUS
EFIAPI
ConSplitterConOutDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start ConSplitter on ControllerHandle, and create the virtual
agrogated console device on first call Start for a SimpleTextIn handle.
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_ERROR if a SimpleTextIn protocol is not started.
--*/
{
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;
}
//
// 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)) {
GraphicsOutput = NULL;
}
//
// Open UGA_DRAW protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw,
This->DriverBindingHandle,
mConOut.VirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
UgaDraw = NULL;
}
//
// 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));
return Status;
}
EFI_STATUS
EFIAPI
ConSplitterStdErrDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start ConSplitter on ControllerHandle, and create the virtual
agrogated console device on first call Start for a SimpleTextIn handle.
Arguments:
This - Pointer to protocol.
ControllerHandle - Controller handle.
RemainingDevicePath - Remaining device path.
Returns:
EFI_ERROR if a SimpleTextIn protocol is not started.
--*/
{
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;
}
//
// 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;
}
STATIC
EFI_STATUS
EFIAPI
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
)
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
None
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterConInDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
None
--*/
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;
if (NumberOfChildren == 0) {
return EFI_SUCCESS;
}
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);
}
EFI_STATUS
EFIAPI
ConSplitterSimplePointerDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
None
--*/
{
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);
}
EFI_STATUS
EFIAPI
ConSplitterConOutDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
None
--*/
{
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);
}
EFI_STATUS
EFIAPI
ConSplitterStdErrDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Arguments:
(Standard DriverBinding Protocol Stop() function)
Returns:
EFI_SUCCESS - Complete successfully.
--*/
{
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;
}
EFI_STATUS
ConSplitterGrowBuffer (
IN UINTN SizeOfCount,
IN UINTN *Count,
IN OUT VOID **Buffer
)
/*++
Routine Description:
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.
Arguments:
SizeOfCount - Size of element in array
Count - Current number of elements in array
Buffer - Bigger version of passed in Buffer with all the data
Returns:
EFI_SUCCESS - Buffer size has grown
EFI_OUT_OF_RESOURCES - Could not grow the buffer size
None
--*/
{
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;
}
EFI_STATUS
ConSplitterTextInAddDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn
)
/*++
Routine Description:
Arguments:
Returns:
EFI_SUCCESS
EFI_OUT_OF_RESOURCES
--*/
{
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;
}
EFI_STATUS
ConSplitterTextInDeleteDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn
)
/*++
Routine Description:
Arguments:
Returns:
EFI_SUCCESS
EFI_NOT_FOUND
--*/
{
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;
}
EFI_STATUS
ConSplitterSimplePointerAddDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer
)
/*++
Routine Description:
Arguments:
Returns:
EFI_OUT_OF_RESOURCES
EFI_SUCCESS
--*/
{
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;
}
EFI_STATUS
ConSplitterSimplePointerDeleteDevice (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{
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;
}
STATIC
EFI_STATUS
ConSplitterGrowMapTable (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{
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;
}
STATIC
EFI_STATUS
ConSplitterAddOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{
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) {
TextOut->QueryMode (
TextOut,
Mode,
&Private->TextOutQueryData[Mode].Columns,
&Private->TextOutQueryData[Mode].Rows
);
Private->TextOutModeMap[Index] = Mode;
Mode++;
Index += Private->TextOutListCount;
}
return EFI_SUCCESS;
}
STATIC
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;
Index = 0;
CurrentMapEntry = TextOutModeMap;
NextMapEntry = TextOutModeMap;
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 ;
}
STATIC
VOID
ConSplitterSyncOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
)
/*++
Routine Description:
Arguments:
Private - Private data structure.
TextOut - Text Out Protocol.
Returns:
None
--*/
{
INT32 CurrentMaxMode;
INT32 Mode;
INT32 Index;
INT32 *TextOutModeMap;
INT32 *MapTable;
TEXT_OUT_SPLITTER_QUERY_DATA *TextOutQueryData;
UINTN Rows;
UINTN Columns;
UINTN StepSize;
//
// 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) {
TextOut->QueryMode (TextOut, Mode, &Columns, &Rows);
//
// Search the QueryData database to see if they intersects
//
Index = 0;
while (Index < CurrentMaxMode) {
if ((TextOutQueryData[Index].Rows == Rows) && (TextOutQueryData[Index].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 ;
}
STATIC
EFI_STATUS
ConSplitterGetIntersectionBetweenConOutAndStrErr (
VOID
)
/*++
Routine Description:
Arguments:
Returns:
None
EFI_OUT_OF_RESOURCES
--*/
{
UINTN ConOutNumOfConsoles;
UINTN StdErrNumOfConsoles;
TEXT_OUT_AND_GOP_DATA *ConOutTextOutList;
TEXT_OUT_AND_GOP_DATA *StdErrTextOutList;
UINTN Indexi;
UINTN Indexj;
UINTN Rows;
UINTN Columns;
INT32 ConOutMaxMode;
INT32 StdErrMaxMode;
INT32 Mode;
INT32 Index;
INT32 *ConOutModeMap;
INT32 *StdErrModeMap;
INT32 *ConOutMapTable;
INT32 *StdErrMapTable;
TEXT_OUT_SPLITTER_QUERY_DATA *ConOutQueryData;
TEXT_OUT_SPLITTER_QUERY_DATA *StdErrQueryData;
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;
ConOutQueryData = mConOut.TextOutQueryData;
StdErrMaxMode = mStdErr.TextOutMode.MaxMode;
StdErrModeMap = mStdErr.TextOutModeMap;
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 other's QueryData database to see if they intersect
//
Index = 0;
Rows = ConOutQueryData[Mode].Rows;
Columns = ConOutQueryData[Mode].Columns;
while (Index < StdErrMaxMode) {
if ((StdErrQueryData[Index].Rows == Rows) && (StdErrQueryData[Index].Columns == Columns)) {
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;
}
STATIC
EFI_STATUS
ConSplitterAddGraphicsOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{
EFI_STATUS Status;
UINTN Index;
TEXT_OUT_GOP_MODE *Mode;
UINTN SizeOfInfo;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *CurrentGraphicsOutputMode;
TEXT_OUT_GOP_MODE *ModeBuffer;
TEXT_OUT_GOP_MODE *MatchedMode;
UINTN NumberIndex;
BOOLEAN Match;
if ((GraphicsOutput == NULL) && (UgaDraw == NULL)) {
return EFI_UNSUPPORTED;
}
CurrentGraphicsOutputMode = Private->GraphicsOutput.Mode;
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 (sizeof (TEXT_OUT_GOP_MODE) * 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;
}
Mode->HorizontalResolution = Info->HorizontalResolution;
Mode->VerticalResolution = Info->VerticalResolution;
Mode++;
FreePool (Info);
}
} else {
//
// Check intersection of display mode
//
ModeBuffer = AllocatePool (sizeof (TEXT_OUT_GOP_MODE) * 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) {
CopyMem (MatchedMode, Mode, sizeof (TEXT_OUT_GOP_MODE));
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 (TEXT_OUT_GOP_MODE));
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) NULL;
CurrentGraphicsOutputMode->FrameBufferSize = 0;
}
//
// Select a prefered Display mode 800x600
//
for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
Mode = &Private->GraphicsOutputModeBuffer[Index];
if ((Mode->HorizontalResolution == 800) && (Mode->VerticalResolution == 600)) {
break;
}
}
//
// Prefered mode is not found, set to mode 0
//
if (Index >= CurrentGraphicsOutputMode->MaxMode) {
Index = 0;
}
//
// Current mode number may need update now, so set it to an invalide mode number
//
CurrentGraphicsOutputMode->Mode = 0xffff;
} else {
//
// For UGA device, it's inconvenient to retrieve all the supported display modes.
// To simplify the implementation, only add one resolution(800x600, 32bit color depth) as defined in UEFI spec
//
CurrentGraphicsOutputMode->MaxMode = 1;
CurrentGraphicsOutputMode->Info->Version = 0;
CurrentGraphicsOutputMode->Info->HorizontalResolution = 800;
CurrentGraphicsOutputMode->Info->VerticalResolution = 600;
CurrentGraphicsOutputMode->Info->PixelFormat = PixelBltOnly;
CurrentGraphicsOutputMode->Info->PixelsPerScanLine = 800;
CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
CurrentGraphicsOutputMode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) NULL;
CurrentGraphicsOutputMode->FrameBufferSize = 0;
//
// Update the private mode buffer
//
ModeBuffer = &Private->GraphicsOutputModeBuffer[0];
ModeBuffer->HorizontalResolution = 800;
ModeBuffer->VerticalResolution = 600;
//
// Current mode is unknow now, set it to an invalid mode number 0xffff
//
CurrentGraphicsOutputMode->Mode = 0xffff;
Index = 0;
}
//
// Force GraphicsOutput mode to be set,
// regardless whether the console is in EfiConsoleControlScreenGraphics or EfiConsoleControlScreenText mode
//
Private->HardwareNeedsStarting = TRUE;
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, (UINT32) Index);
Private->CurrentNumberOfGraphicsOutput++;
return Status;
}
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
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{
EFI_STATUS Status;
UINTN CurrentNumOfConsoles;
INT32 CurrentMode;
INT32 MaxMode;
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 UGA device then use the ConOut device
//
TextAndGop->TextOutEnabled = TRUE;
} else {
//
// If UGA device use ConOut device only used if UGA 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);
if ((GraphicsOutput != NULL) || (UgaDraw != NULL)) {
ConSplitterAddGraphicsOutputMode (Private, GraphicsOutput, UgaDraw);
}
if (Private->ConsoleOutputMode == EfiConsoleControlScreenGraphics && GraphicsOutput != NULL) {
//
// We just added a new UGA device in graphics mode
//
DevNullGopSync (Private, GraphicsOutput, 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
//
DevNullSyncGopStdOut (Private);
} else {
//
// If ConOut, then set the mode to Mode #0 which us 80 x 25
//
Private->TextOut.SetMode (&Private->TextOut, 0);
}
return Status;
}
EFI_STATUS
ConSplitterTextOutDeleteDevice (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
{
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--;
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
//
EFI_STATUS
EFIAPI
ConSplitterTextInReset (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Reset the input device and optionaly run diagnostics
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The device was reset.
EFI_DEVICE_ERROR - The device is not functioning properly and could
not be reset.
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterTextInPrivateReadKeyStroke (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
OUT EFI_INPUT_KEY *Key
)
/*++
Routine Description:
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
Arguments:
This - Protocol instance pointer.
Key - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The keystroke information was returned.
EFI_NOT_READY - There was no keystroke data availiable.
EFI_DEVICE_ERROR - The keydtroke information was not returned due to
hardware errors.
--*/
{
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;
}
BOOLEAN
ConSpliterConssoleControlStdInLocked (
VOID
)
/*++
Routine Description:
Return TRUE if StdIn is locked. The ConIn device on the virtual handle is
the only device locked.
Arguments:
NONE
Returns:
TRUE - StdIn locked
FALSE - StdIn working normally
--*/
{
return mConIn.PasswordEnabled;
}
VOID
EFIAPI
ConSpliterConsoleControlLockStdInEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
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.
Arguments:
(Standard EFI_EVENT_NOTIFY)
Returns:
None
--*/
{
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));
}
EFI_STATUS
EFIAPI
ConSpliterConsoleControlLockStdIn (
IN EFI_CONSOLE_CONTROL_PROTOCOL *This,
IN CHAR16 *Password
)
/*++
Routine Description:
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
Arguments:
Returns:
EFI_SUCCESS - Lock the StdIn device
EFI_INVALID_PARAMETER - Password is NULL
EFI_OUT_OF_RESOURCES - Buffer allocation to store the password fails
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterTextInReadKeyStroke (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
OUT EFI_INPUT_KEY *Key
)
/*++
Routine Description:
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
Arguments:
This - Protocol instance pointer.
Key - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The keystroke information was returned.
EFI_NOT_READY - There was no keystroke data availiable.
EFI_DEVICE_ERROR - The keydtroke information was not returned due to
hardware errors.
--*/
{
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);
}
VOID
EFIAPI
ConSplitterTextInWaitForKey (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
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 ().
Arguments:
Event - The Event assoicated with callback.
Context - Context registered when Event was created.
Returns:
None
--*/
{
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;
}
}
}
EFI_STATUS
EFIAPI
ConSplitterSimplePointerReset (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Reset the input device and optionaly run diagnostics
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The device was reset.
EFI_DEVICE_ERROR - The device is not functioning properly and could
not be reset.
--*/
{
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;
}
STATIC
EFI_STATUS
EFIAPI
ConSplitterSimplePointerPrivateGetState (
IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
IN OUT EFI_SIMPLE_POINTER_STATE *State
)
/*++
Routine Description:
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
Arguments:
This - Protocol instance pointer.
State -
Returns:
EFI_SUCCESS - The keystroke information was returned.
EFI_NOT_READY - There was no keystroke data availiable.
EFI_DEVICE_ERROR - The keydtroke information was not returned due to
hardware errors.
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterSimplePointerGetState (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN OUT EFI_SIMPLE_POINTER_STATE *State
)
/*++
Routine Description:
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
Arguments:
This - Protocol instance pointer.
State -
Returns:
EFI_SUCCESS - The keystroke information was returned.
EFI_NOT_READY - There was no keystroke data availiable.
EFI_DEVICE_ERROR - The keydtroke information was not returned due to
hardware errors.
--*/
{
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);
}
VOID
EFIAPI
ConSplitterSimplePointerWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
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 ().
Arguments:
Event - The Event assoicated with callback.
Context - Context registered when Event was created.
Returns:
None
--*/
{
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;
}
}
}
EFI_STATUS
EFIAPI
ConSplitterTextOutReset (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Reset the text output device hardware and optionaly run diagnostics
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform more exhaustive verfication
operation of the device during reset.
Returns:
EFI_SUCCESS - The text output device was reset.
EFI_DEVICE_ERROR - The text output device is not functioning correctly and
could not be reset.
--*/
{
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_BACKGROUND_BLACK));
Status = DevNullTextOutSetMode (Private, 0);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
return ReturnStatus;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutOutputString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *WString
)
/*++
Routine Description:
Write a Unicode string to the output device.
Arguments:
This - Protocol instance pointer.
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.
Returns:
EFI_SUCCESS - The string was output to the device.
EFI_DEVICE_ERROR - The device reported an error while attempting to output
the text.
EFI_UNSUPPORTED - The output device's mode is not currently in a
defined text mode.
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 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; 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) {
FreePool (TargetString);
}
return ReturnStatus;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutTestString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *WString
)
/*++
Routine Description:
Verifies that all characters in a Unicode string can be output to the
target device.
Arguments:
This - Protocol instance pointer.
String - The NULL-terminated Unicode string to be examined for the output
device(s).
Returns:
EFI_SUCCESS - The device(s) are capable of rendering the output string.
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 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;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutQueryMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber,
OUT UINTN *Columns,
OUT UINTN *Rows
)
/*++
Routine Description:
Returns information for an available text mode that the output device(s)
supports.
Arguments:
This - Protocol instance pointer.
ModeNumber - The mode number to return information on.
Columns, Rows - Returns the geometry of the text output device for the
requested ModeNumber.
Returns:
EFI_SUCCESS - The requested mode information was returned.
EFI_DEVICE_ERROR - The device had an error and could not
complete the request.
EFI_UNSUPPORTED - The mode number was not valid.
--*/
{
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
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;
}
*Columns = Private->TextOutQueryData[ModeNumber].Columns;
*Rows = Private->TextOutQueryData[ModeNumber].Rows;
if (*Columns <= 0 && *Rows <= 0) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutSetMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber
)
/*++
Routine Description:
Sets the output device(s) to a specified mode.
Arguments:
This - Protocol instance pointer.
ModeNumber - The mode number to set.
Returns:
EFI_SUCCESS - The requested text mode was set.
EFI_DEVICE_ERROR - The device had an error and
could not complete the request.
EFI_UNSUPPORTED - The mode number was not valid.
--*/
{
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 UGA device, then sync up the bitmap from
// the 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;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutSetAttribute (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Attribute
)
/*++
Routine Description:
Sets the background and foreground colors for the OutputString () and
ClearScreen () functions.
Arguments:
This - Protocol instance pointer.
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.
Returns:
EFI_SUCCESS - The attribute was set.
EFI_DEVICE_ERROR - The device had an error and
could not complete the request.
EFI_UNSUPPORTED - The attribute requested is not defined.
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutClearScreen (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
)
/*++
Routine Description:
Clears the output device(s) display to the currently selected background
color.
Arguments:
This - Protocol instance pointer.
Returns:
EFI_SUCCESS - The operation completed successfully.
EFI_DEVICE_ERROR - The device had an error and
could not complete the request.
EFI_UNSUPPORTED - The output device is not in a valid text mode.
--*/
{
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;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutSetCursorPosition (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Column,
IN UINTN Row
)
/*++
Routine Description:
Sets the current coordinates of the cursor position
Arguments:
This - Protocol instance pointer.
Column, 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 ().
Returns:
EFI_SUCCESS - The operation completed successfully.
EFI_DEVICE_ERROR - The device had an error and
could not complete the request.
EFI_UNSUPPORTED - The output device is not in a valid text mode, or the
cursor position is invalid for the current mode.
--*/
{
EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index;
EFI_STATUS ReturnStatus;
UINTN MaxColumn;
UINTN MaxRow;
Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
MaxColumn = Private->TextOutQueryData[Private->TextOutMode.Mode].Columns;
MaxRow = Private->TextOutQueryData[Private->TextOutMode.Mode].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;
}
EFI_STATUS
EFIAPI
ConSplitterTextOutEnableCursor (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN Visible
)
/*++
Routine Description:
Makes the cursor visible or invisible
Arguments:
This - Protocol instance pointer.
Visible - If TRUE, the cursor is set to be visible. If FALSE, the cursor is
set to be invisible.
Returns:
EFI_SUCCESS - The operation completed successfully.
EFI_DEVICE_ERROR - The device had an error and could not complete the
request, or the device does not support changing
the cursor mode.
EFI_UNSUPPORTED - The output device is not in a valid text mode.
--*/
{
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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