2 Graphics Output Protocol functions for the QEMU video controller.
4 Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
14 QemuVideoCompleteModeInfo (
15 IN QEMU_VIDEO_MODE_DATA
*ModeData
,
16 OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
20 if (ModeData
->ColorDepth
== 8) {
21 Info
->PixelFormat
= PixelBitMask
;
22 Info
->PixelInformation
.RedMask
= PIXEL_RED_MASK
;
23 Info
->PixelInformation
.GreenMask
= PIXEL_GREEN_MASK
;
24 Info
->PixelInformation
.BlueMask
= PIXEL_BLUE_MASK
;
25 Info
->PixelInformation
.ReservedMask
= 0;
26 } else if (ModeData
->ColorDepth
== 24) {
27 Info
->PixelFormat
= PixelBitMask
;
28 Info
->PixelInformation
.RedMask
= PIXEL24_RED_MASK
;
29 Info
->PixelInformation
.GreenMask
= PIXEL24_GREEN_MASK
;
30 Info
->PixelInformation
.BlueMask
= PIXEL24_BLUE_MASK
;
31 Info
->PixelInformation
.ReservedMask
= 0;
32 } else if (ModeData
->ColorDepth
== 32) {
33 DEBUG ((DEBUG_INFO
, "PixelBlueGreenRedReserved8BitPerColor\n"));
34 Info
->PixelFormat
= PixelBlueGreenRedReserved8BitPerColor
;
37 Info
->PixelsPerScanLine
= Info
->HorizontalResolution
;
42 QemuVideoCompleteModeData (
43 IN QEMU_VIDEO_PRIVATE_DATA
*Private
,
44 OUT EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE
*Mode
47 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
;
48 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*FrameBufDesc
;
49 QEMU_VIDEO_MODE_DATA
*ModeData
;
51 ModeData
= &Private
->ModeData
[Mode
->Mode
];
53 QemuVideoCompleteModeInfo (ModeData
, Info
);
55 Private
->PciIo
->GetBarAttributes (
57 Private
->FrameBufferVramBarIndex
,
59 (VOID
**)&FrameBufDesc
62 Mode
->FrameBufferBase
= FrameBufDesc
->AddrRangeMin
;
63 Mode
->FrameBufferSize
= Info
->HorizontalResolution
* Info
->VerticalResolution
;
64 Mode
->FrameBufferSize
= Mode
->FrameBufferSize
* ((ModeData
->ColorDepth
+ 7) / 8);
65 Mode
->FrameBufferSize
= EFI_PAGES_TO_SIZE (
66 EFI_SIZE_TO_PAGES (Mode
->FrameBufferSize
)
70 "FrameBufferBase: 0x%Lx, FrameBufferSize: 0x%Lx\n",
71 Mode
->FrameBufferBase
,
72 (UINT64
)Mode
->FrameBufferSize
75 FreePool (FrameBufDesc
);
80 // Graphics Output Protocol Member Functions
84 QemuVideoGraphicsOutputQueryMode (
85 IN EFI_GRAPHICS_OUTPUT_PROTOCOL
*This
,
87 OUT UINTN
*SizeOfInfo
,
88 OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
**Info
95 Graphics Output protocol interface to query video mode
98 This - Protocol instance pointer.
99 ModeNumber - The mode number to return information on.
100 Info - Caller allocated buffer that returns information about ModeNumber.
101 SizeOfInfo - A pointer to the size, in bytes, of the Info buffer.
104 EFI_SUCCESS - Mode information returned.
105 EFI_BUFFER_TOO_SMALL - The Info buffer was too small.
106 EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.
107 EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
108 EFI_INVALID_PARAMETER - One of the input args was NULL.
112 QEMU_VIDEO_PRIVATE_DATA
*Private
;
113 QEMU_VIDEO_MODE_DATA
*ModeData
;
115 Private
= QEMU_VIDEO_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This
);
117 if ((Info
== NULL
) || (SizeOfInfo
== NULL
) || (ModeNumber
>= This
->Mode
->MaxMode
)) {
118 return EFI_INVALID_PARAMETER
;
121 *Info
= AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
123 return EFI_OUT_OF_RESOURCES
;
126 *SizeOfInfo
= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
);
128 ModeData
= &Private
->ModeData
[ModeNumber
];
129 (*Info
)->HorizontalResolution
= ModeData
->HorizontalResolution
;
130 (*Info
)->VerticalResolution
= ModeData
->VerticalResolution
;
131 QemuVideoCompleteModeInfo (ModeData
, *Info
);
138 QemuVideoGraphicsOutputSetMode (
139 IN EFI_GRAPHICS_OUTPUT_PROTOCOL
*This
,
147 Graphics Output protocol interface to set video mode
150 This - Protocol instance pointer.
151 ModeNumber - The mode number to be set.
154 EFI_SUCCESS - Graphics mode was changed.
155 EFI_DEVICE_ERROR - The device had an error and could not complete the request.
156 EFI_UNSUPPORTED - ModeNumber is not supported by this device.
160 QEMU_VIDEO_PRIVATE_DATA
*Private
;
161 QEMU_VIDEO_MODE_DATA
*ModeData
;
162 RETURN_STATUS Status
;
163 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Black
;
165 Private
= QEMU_VIDEO_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This
);
167 if (ModeNumber
>= This
->Mode
->MaxMode
) {
168 return EFI_UNSUPPORTED
;
171 ModeData
= &Private
->ModeData
[ModeNumber
];
173 switch (Private
->Variant
) {
174 case QEMU_VIDEO_CIRRUS_5430
:
175 case QEMU_VIDEO_CIRRUS_5446
:
176 InitializeCirrusGraphicsMode (Private
, &QemuVideoCirrusModes
[ModeData
->InternalModeIndex
]);
178 case QEMU_VIDEO_BOCHS_MMIO
:
179 case QEMU_VIDEO_BOCHS
:
180 InitializeBochsGraphicsMode (Private
, &QemuVideoBochsModes
[ModeData
->InternalModeIndex
]);
184 return EFI_DEVICE_ERROR
;
187 This
->Mode
->Mode
= ModeNumber
;
188 This
->Mode
->Info
->HorizontalResolution
= ModeData
->HorizontalResolution
;
189 This
->Mode
->Info
->VerticalResolution
= ModeData
->VerticalResolution
;
190 This
->Mode
->SizeOfInfo
= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
);
192 QemuVideoCompleteModeData (Private
, This
->Mode
);
195 // Re-initialize the frame buffer configure when mode changes.
197 Status
= FrameBufferBltConfigure (
198 (VOID
*)(UINTN
)This
->Mode
->FrameBufferBase
,
200 Private
->FrameBufferBltConfigure
,
201 &Private
->FrameBufferBltConfigureSize
203 if (Status
== RETURN_BUFFER_TOO_SMALL
) {
205 // Frame buffer configure may be larger in new mode.
207 if (Private
->FrameBufferBltConfigure
!= NULL
) {
208 FreePool (Private
->FrameBufferBltConfigure
);
211 Private
->FrameBufferBltConfigure
=
212 AllocatePool (Private
->FrameBufferBltConfigureSize
);
213 ASSERT (Private
->FrameBufferBltConfigure
!= NULL
);
216 // Create the configuration for FrameBufferBltLib
218 Status
= FrameBufferBltConfigure (
219 (VOID
*)(UINTN
)This
->Mode
->FrameBufferBase
,
221 Private
->FrameBufferBltConfigure
,
222 &Private
->FrameBufferBltConfigureSize
226 ASSERT (Status
== RETURN_SUCCESS
);
229 // Per UEFI Spec, need to clear the visible portions of the output display to black.
231 ZeroMem (&Black
, sizeof (Black
));
232 Status
= FrameBufferBlt (
233 Private
->FrameBufferBltConfigure
,
240 This
->Mode
->Info
->HorizontalResolution
,
241 This
->Mode
->Info
->VerticalResolution
,
244 ASSERT_RETURN_ERROR (Status
);
251 QemuVideoGraphicsOutputBlt (
252 IN EFI_GRAPHICS_OUTPUT_PROTOCOL
*This
,
253 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL
*BltBuffer OPTIONAL
,
254 IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation
,
257 IN UINTN DestinationX
,
258 IN UINTN DestinationY
,
268 Graphics Output protocol instance to block transfer for CirrusLogic device
272 This - Pointer to Graphics Output protocol instance
273 BltBuffer - The data to transfer to screen
274 BltOperation - The operation to perform
275 SourceX - The X coordinate of the source for BltOperation
276 SourceY - The Y coordinate of the source for BltOperation
277 DestinationX - The X coordinate of the destination for BltOperation
278 DestinationY - The Y coordinate of the destination for BltOperation
279 Width - The width of a rectangle in the blt rectangle in pixels
280 Height - The height of a rectangle in the blt rectangle in pixels
281 Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.
282 If a Delta of 0 is used, the entire BltBuffer will be operated on.
283 If a subrectangle of the BltBuffer is used, then Delta represents
284 the number of bytes in a row of the BltBuffer.
288 EFI_INVALID_PARAMETER - Invalid parameter passed in
289 EFI_SUCCESS - Blt operation success
295 QEMU_VIDEO_PRIVATE_DATA
*Private
;
297 Private
= QEMU_VIDEO_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This
);
299 // We have to raise to TPL Notify, so we make an atomic write the frame buffer.
300 // We would not want a timer based event (Cursor, ...) to come in while we are
301 // doing this operation.
303 OriginalTPL
= gBS
->RaiseTPL (TPL_NOTIFY
);
305 switch (BltOperation
) {
306 case EfiBltVideoToBltBuffer
:
307 case EfiBltBufferToVideo
:
308 case EfiBltVideoFill
:
309 case EfiBltVideoToVideo
:
310 Status
= FrameBufferBlt (
311 Private
->FrameBufferBltConfigure
,
325 Status
= EFI_INVALID_PARAMETER
;
329 gBS
->RestoreTPL (OriginalTPL
);
335 QemuVideoGraphicsOutputConstructor (
336 QEMU_VIDEO_PRIVATE_DATA
*Private
340 EFI_GRAPHICS_OUTPUT_PROTOCOL
*GraphicsOutput
;
342 GraphicsOutput
= &Private
->GraphicsOutput
;
343 GraphicsOutput
->QueryMode
= QemuVideoGraphicsOutputQueryMode
;
344 GraphicsOutput
->SetMode
= QemuVideoGraphicsOutputSetMode
;
345 GraphicsOutput
->Blt
= QemuVideoGraphicsOutputBlt
;
348 // Initialize the private data
350 Status
= gBS
->AllocatePool (
352 sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE
),
353 (VOID
**)&Private
->GraphicsOutput
.Mode
355 if (EFI_ERROR (Status
)) {
359 Status
= gBS
->AllocatePool (
361 sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
),
362 (VOID
**)&Private
->GraphicsOutput
.Mode
->Info
364 if (EFI_ERROR (Status
)) {
368 Private
->GraphicsOutput
.Mode
->MaxMode
= (UINT32
)Private
->MaxMode
;
369 Private
->GraphicsOutput
.Mode
->Mode
= GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER
;
370 Private
->FrameBufferBltConfigure
= NULL
;
371 Private
->FrameBufferBltConfigureSize
= 0;
374 // Initialize the hardware
376 Status
= GraphicsOutput
->SetMode (GraphicsOutput
, 0);
377 if (EFI_ERROR (Status
)) {
383 Private
->ModeData
[Private
->GraphicsOutput
.Mode
->Mode
].HorizontalResolution
,
384 Private
->ModeData
[Private
->GraphicsOutput
.Mode
->Mode
].VerticalResolution
390 FreePool (Private
->GraphicsOutput
.Mode
->Info
);
393 FreePool (Private
->GraphicsOutput
.Mode
);
394 Private
->GraphicsOutput
.Mode
= NULL
;
400 QemuVideoGraphicsOutputDestructor (
401 QEMU_VIDEO_PRIVATE_DATA
*Private
416 if (Private
->FrameBufferBltConfigure
!= NULL
) {
417 FreePool (Private
->FrameBufferBltConfigure
);
420 if (Private
->GraphicsOutput
.Mode
!= NULL
) {
421 if (Private
->GraphicsOutput
.Mode
->Info
!= NULL
) {
422 gBS
->FreePool (Private
->GraphicsOutput
.Mode
->Info
);
425 gBS
->FreePool (Private
->GraphicsOutput
.Mode
);