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audk/UnixPkg/UnixGopDxe/UnixGopScreen.c

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/*++
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2010, Apple, Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
UnixGopScreen.c
Abstract:
This file produces the graphics abstration of UGA. It is called by
UnixGopDriver.c file which deals with the EFI 1.1 driver model.
This file just does graphics.
--*/
#include "UnixGop.h"
EFI_UNIX_THUNK_PROTOCOL *mUnix;
EFI_EVENT mGopScreenExitBootServicesEvent;
GOP_MODE_DATA mGopModeData[] = {
{ 800, 600, 0, 0 },
{ 640, 480, 0, 0 },
{ 720, 400, 0, 0 },
{1024, 768, 0, 0 },
{1280, 1024, 0, 0 }
};
EFI_STATUS
UnixGopStartWindow (
IN GOP_PRIVATE_DATA *Private,
IN UINT32 HorizontalResolution,
IN UINT32 VerticalResolution,
IN UINT32 ColorDepth,
IN UINT32 RefreshRate
);
VOID
EFIAPI
KillUgaGopThread (
IN EFI_EVENT Event,
IN VOID *Context
);
//
// UGA Protocol Member Functions
//
EFI_STATUS
EFIAPI
UnixGopQuerytMode (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN UINT32 ModeNumber,
OUT UINTN *SizeOfInfo,
OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
)
{
GOP_PRIVATE_DATA *Private;
Private = GOP_PRIVATE_DATA_FROM_THIS (This);
if (Info == NULL || SizeOfInfo == NULL || (UINTN) ModeNumber >= This->Mode->MaxMode) {
return EFI_INVALID_PARAMETER;
}
*Info = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
if (*Info == NULL) {
return EFI_OUT_OF_RESOURCES;
}
*SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
(*Info)->Version = 0;
(*Info)->HorizontalResolution = Private->ModeData[ModeNumber].HorizontalResolution;
(*Info)->VerticalResolution = Private->ModeData[ModeNumber].VerticalResolution;
(*Info)->PixelFormat = PixelBltOnly;
(*Info)->PixelsPerScanLine = (*Info)->HorizontalResolution;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
UnixGopSetMode (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN UINT32 ModeNumber
)
{
EFI_STATUS Status;
GOP_PRIVATE_DATA *Private;
GOP_MODE_DATA *ModeData;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Fill;
Private = GOP_PRIVATE_DATA_FROM_THIS (This);
if (ModeNumber >= This->Mode->MaxMode) {
return EFI_UNSUPPORTED;
}
ModeData = &Private->ModeData[ModeNumber];
This->Mode->Mode = ModeNumber;
Private->GraphicsOutput.Mode->Info->HorizontalResolution = ModeData->HorizontalResolution;
Private->GraphicsOutput.Mode->Info->VerticalResolution = ModeData->VerticalResolution;
Private->GraphicsOutput.Mode->Info->PixelsPerScanLine = ModeData->HorizontalResolution;
if (Private->HardwareNeedsStarting) {
Status = UnixGopStartWindow (
Private,
ModeData->HorizontalResolution,
ModeData->VerticalResolution,
ModeData->ColorDepth,
ModeData->RefreshRate
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
Private->HardwareNeedsStarting = FALSE;
}
Status = Private->UgaIo->UgaSize(
Private->UgaIo,
ModeData->HorizontalResolution,
ModeData->VerticalResolution
);
Fill.Red = 0x7f;
Fill.Green = 0x7F;
Fill.Blue = 0x7f;
This->Blt (
This,
&Fill,
EfiBltVideoFill,
0,
0,
0,
0,
ModeData->HorizontalResolution,
ModeData->VerticalResolution,
ModeData->HorizontalResolution * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
);
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
UnixGopBlt (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta OPTIONAL
)
{
GOP_PRIVATE_DATA *Private;
EFI_TPL OriginalTPL;
EFI_STATUS Status;
UGA_BLT_ARGS GopBltArgs;
Private = GOP_PRIVATE_DATA_FROM_THIS (This);
if ((BltOperation < 0) || (BltOperation >= EfiGraphicsOutputBltOperationMax)) {
return EFI_INVALID_PARAMETER;
}
if (Width == 0 || Height == 0) {
return EFI_INVALID_PARAMETER;
}
//
// If Delta is zero, then the entire BltBuffer is being used, so Delta
// is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,
// the number of bytes in each row can be computed.
//
if (Delta == 0) {
Delta = Width * sizeof (EFI_UGA_PIXEL);
}
//
// We have to raise to TPL Notify, so we make an atomic write the frame buffer.
// We would not want a timer based event (Cursor, ...) to come in while we are
// doing this operation.
//
OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY);
//
// Pack UGA Draw protocol parameters to UGA_BLT_ARGS structure to adapt to
// GopBlt() API of Unix UGA IO protocol.
//
GopBltArgs.DestinationX = DestinationX;
GopBltArgs.DestinationY = DestinationY;
GopBltArgs.Height = Height;
GopBltArgs.Width = Width;
GopBltArgs.SourceX = SourceX;
GopBltArgs.SourceY = SourceY;
GopBltArgs.Delta = Delta;
Status = Private->UgaIo->UgaBlt (
Private->UgaIo,
(EFI_UGA_PIXEL *)BltBuffer,
(EFI_UGA_BLT_OPERATION)BltOperation,
&GopBltArgs
);
gBS->RestoreTPL (OriginalTPL);
return Status;
}
//
// Construction and Destruction functions
//
EFI_STATUS
UnixGopSupported (
IN EFI_UNIX_IO_PROTOCOL *UnixIo
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
// TODO: UnixIo - add argument and description to function comment
// TODO: EFI_UNSUPPORTED - add return value to function comment
// TODO: EFI_SUCCESS - add return value to function comment
{
//
// Check to see if the IO abstraction represents a device type we support.
//
// This would be replaced a check of PCI subsystem ID, etc.
//
if (!CompareGuid (UnixIo->TypeGuid, &gEfiUnixGopGuid)) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}
VOID
EFIAPI
GopPrivateInvokeRegisteredFunction (
IN VOID *Context,
IN EFI_KEY_DATA *KeyData
);
EFI_STATUS
UnixGopStartWindow (
IN GOP_PRIVATE_DATA *Private,
IN UINT32 HorizontalResolution,
IN UINT32 VerticalResolution,
IN UINT32 ColorDepth,
IN UINT32 RefreshRate
)
{
EFI_STATUS Status;
mUnix = Private->UnixThunk;
//
// Register to be notified on exit boot services so we can destroy the window.
//
Status = gBS->CreateEvent (
EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_CALLBACK,
KillUgaGopThread,
Private,
&mGopScreenExitBootServicesEvent
);
Status = Private->UnixThunk->UgaCreate (&Private->UgaIo, Private->WindowName);
if (!EFI_ERROR (Status)) {
// Register callback to support RegisterKeyNotify()
Status = Private->UgaIo->UgaRegisterKeyNotify (Private->UgaIo, GopPrivateInvokeRegisteredFunction, Private);
ASSERT_EFI_ERROR (Status);
}
return Status;
}
EFI_STATUS
UnixGopConstructor (
GOP_PRIVATE_DATA *Private
)
{
Private->ModeData = mGopModeData;
Private->GraphicsOutput.QueryMode = UnixGopQuerytMode;
Private->GraphicsOutput.SetMode = UnixGopSetMode;
Private->GraphicsOutput.Blt = UnixGopBlt;
//
// Allocate buffer for Graphics Output Protocol mode information
//
Private->GraphicsOutput.Mode = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE));
if (Private->GraphicsOutput.Mode == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Private->GraphicsOutput.Mode->Info = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
if (Private->GraphicsOutput.Mode->Info == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Private->GraphicsOutput.Mode->MaxMode = sizeof(mGopModeData) / sizeof(GOP_MODE_DATA);
//
// Till now, we have no idea about the window size.
//
Private->GraphicsOutput.Mode->Mode = GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER;
Private->GraphicsOutput.Mode->Info->Version = 0;
Private->GraphicsOutput.Mode->Info->HorizontalResolution = 0;
Private->GraphicsOutput.Mode->Info->VerticalResolution = 0;
Private->GraphicsOutput.Mode->Info->PixelFormat = PixelBltOnly;
Private->GraphicsOutput.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
Private->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
Private->GraphicsOutput.Mode->FrameBufferSize = 0;
Private->HardwareNeedsStarting = TRUE;
Private->UgaIo = NULL;
UnixGopInitializeSimpleTextInForWindow (Private);
UnixGopInitializeSimplePointerForWindow (Private);
return EFI_SUCCESS;
}
EFI_STATUS
UnixGopDestructor (
GOP_PRIVATE_DATA *Private
)
{
if (!Private->HardwareNeedsStarting) {
Private->UgaIo->UgaClose (Private->UgaIo);
Private->UgaIo = NULL;
}
//
// Free graphics output protocol occupied resource
//
if (Private->GraphicsOutput.Mode != NULL) {
if (Private->GraphicsOutput.Mode->Info != NULL) {
FreePool (Private->GraphicsOutput.Mode->Info);
}
FreePool (Private->GraphicsOutput.Mode);
}
return EFI_SUCCESS;
}
VOID
EFIAPI
KillUgaGopThread (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
This is the UGA screen's callback notification function for exit-boot-services.
All we do here is call UnixGopDestructor().
Arguments:
Event - not used
Context - pointer to the Private structure.
Returns:
None.
--*/
{
EFI_STATUS Status;
Status = UnixGopDestructor (Context);
}
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