132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/** @file
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Copyright (C) 2020, vit9696. All rights reserved.
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All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "OcConsoleLibInternal.h"
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#include <Protocol/AppleFramebufferInfo.h>
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#include <Protocol/GraphicsOutput.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/OcConsoleLib.h>
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#include <Library/OcMiscLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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STATIC
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EFI_STATUS
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EFIAPI
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AppleFramebufferGetInfo (
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IN APPLE_FRAMEBUFFER_INFO_PROTOCOL *This,
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OUT EFI_PHYSICAL_ADDRESS *FramebufferBase,
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OUT UINT32 *FramebufferSize,
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OUT UINT32 *ScreenRowBytes,
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OUT UINT32 *ScreenWidth,
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OUT UINT32 *ScreenHeight,
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OUT UINT32 *ScreenDepth
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)
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{
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EFI_STATUS Status;
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EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
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EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode;
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EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
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if (This == NULL
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|| FramebufferBase == NULL
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|| FramebufferSize == NULL
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|| ScreenRowBytes == NULL
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|| ScreenWidth == NULL
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|| ScreenHeight == NULL
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|| ScreenDepth == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Status = gBS->HandleProtocol (
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gST->ConsoleOutHandle,
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&gEfiGraphicsOutputProtocolGuid,
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(VOID **) &GraphicsOutput
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);
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if (EFI_ERROR(Status)) {
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return EFI_UNSUPPORTED;
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}
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Mode = GraphicsOutput->Mode;
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Info = Mode->Info;
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if (Info == NULL) {
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return EFI_UNSUPPORTED;
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}
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//
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// This is a bit inaccurate as it assumes 32-bit BPP, but will do for most cases.
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//
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*FramebufferBase = Mode->FrameBufferBase;
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*FramebufferSize = (UINT32) Mode->FrameBufferSize;
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*ScreenRowBytes = (UINT32) (Info->PixelsPerScanLine * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
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*ScreenWidth = Info->HorizontalResolution;
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*ScreenHeight = Info->VerticalResolution;
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*ScreenDepth = DEFAULT_COLOUR_DEPTH;
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return EFI_SUCCESS;
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}
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STATIC
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APPLE_FRAMEBUFFER_INFO_PROTOCOL
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mAppleFramebufferInfo = {
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AppleFramebufferGetInfo
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};
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APPLE_FRAMEBUFFER_INFO_PROTOCOL *
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OcAppleFbInfoInstallProtocol (
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IN BOOLEAN Reinstall
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)
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{
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EFI_STATUS Status;
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APPLE_FRAMEBUFFER_INFO_PROTOCOL *Protocol;
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DEBUG ((DEBUG_VERBOSE, "OcAppleFbInfoInstallProtocol\n"));
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if (Reinstall) {
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Status = OcUninstallAllProtocolInstances (&gAppleFramebufferInfoProtocolGuid);
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if (EFI_ERROR(Status)) {
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DEBUG ((DEBUG_ERROR, "OCOS: Uninstall failed: %r\n", Status));
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return NULL;
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}
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} else {
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Status = gBS->LocateProtocol (
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&gAppleFramebufferInfoProtocolGuid,
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NULL,
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(VOID *) &Protocol
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);
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if (!EFI_ERROR(Status)) {
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return Protocol;
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}
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}
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Status = gBS->InstallMultipleProtocolInterfaces (
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&gImageHandle,
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&gAppleFramebufferInfoProtocolGuid,
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(VOID *) &mAppleFramebufferInfo,
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NULL
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);
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if (EFI_ERROR(Status)) {
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return NULL;
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}
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return &mAppleFramebufferInfo;
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}
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