--- /dev/null
+/** @file\r
+ ConsoleOut Routines that speak VGA.\r
+\r
+Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>\r
+\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions\r
+of the BSD License which accompanies this distribution. The\r
+full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "FbGop.h"\r
+\r
+EFI_PIXEL_BITMASK mPixelBitMask = {0x0000FF, 0x00FF00, 0xFF0000, 0x000000};\r
+\r
+//\r
+// Save controller attributes during first start\r
+//\r
+UINT64 mOriginalPciAttributes;\r
+BOOLEAN mPciAttributesSaved = FALSE;\r
+\r
+\r
+//\r
+// EFI Driver Binding Protocol Instance\r
+//\r
+EFI_DRIVER_BINDING_PROTOCOL gFbGopDriverBinding = {\r
+ FbGopDriverBindingSupported,\r
+ FbGopDriverBindingStart,\r
+ FbGopDriverBindingStop,\r
+ 0x3,\r
+ NULL,\r
+ NULL\r
+};\r
+\r
+//\r
+// Native resolution in EDID DetailedTiming[0]\r
+//\r
+UINT32 mNativeModeHorizontal;\r
+UINT32 mNativeModeVertical;\r
+\r
+/**\r
+ Supported.\r
+\r
+ @param This Pointer to driver binding protocol\r
+ @param Controller Controller handle to connect\r
+ @param RemainingDevicePath A pointer to the remaining portion of a device\r
+ path\r
+\r
+ @retval EFI_STATUS EFI_SUCCESS:This controller can be managed by this\r
+ driver, Otherwise, this controller cannot be\r
+ managed by this driver\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ PCI_TYPE00 Pci;\r
+ EFI_DEV_PATH *Node;\r
+\r
+ //\r
+ // Open the IO Abstraction(s) needed to perform the supported test\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &PciIo,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // See if this is a PCI Graphics Controller by looking at the Command register and\r
+ // Class Code Register\r
+ //\r
+ Status = PciIo->Pci.Read (\r
+ PciIo,\r
+ EfiPciIoWidthUint32,\r
+ 0,\r
+ sizeof (Pci) / sizeof (UINT32),\r
+ &Pci\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ }\r
+\r
+ Status = EFI_UNSUPPORTED;\r
+ if (Pci.Hdr.ClassCode[2] == 0x03 || (Pci.Hdr.ClassCode[2] == 0x00 && Pci.Hdr.ClassCode[1] == 0x01)) {\r
+\r
+ Status = EFI_SUCCESS;\r
+ //\r
+ // If this is a graphics controller,\r
+ // go further check RemainingDevicePath validation\r
+ //\r
+ if (RemainingDevicePath != NULL) {\r
+ Node = (EFI_DEV_PATH *) RemainingDevicePath;\r
+ //\r
+ // Check if RemainingDevicePath is the End of Device Path Node, \r
+ // if yes, return EFI_SUCCESS\r
+ //\r
+ if (!IsDevicePathEnd (Node)) {\r
+ //\r
+ // If RemainingDevicePath isn't the End of Device Path Node,\r
+ // check its validation\r
+ //\r
+ if (Node->DevPath.Type != ACPI_DEVICE_PATH ||\r
+ Node->DevPath.SubType != ACPI_ADR_DP ||\r
+ DevicePathNodeLength(&Node->DevPath) < sizeof(ACPI_ADR_DEVICE_PATH)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+Done:\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Install Graphics Output Protocol onto VGA device handles.\r
+\r
+ @param This Pointer to driver binding protocol\r
+ @param Controller Controller handle to connect\r
+ @param RemainingDevicePath A pointer to the remaining portion of a device\r
+ path\r
+\r
+ @return EFI_STATUS\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
+ EFI_PCI_IO_PROTOCOL *PciIo; \r
+ UINT64 Supports;\r
+\r
+ DEBUG ((EFI_D_INFO, "GOP START\n"));\r
+ \r
+ //\r
+ // Initialize local variables\r
+ //\r
+ PciIo = NULL;\r
+ ParentDevicePath = NULL;\r
+\r
+ //\r
+ // Prepare for status code\r
+ //\r
+ Status = gBS->HandleProtocol (\r
+ Controller,\r
+ &gEfiDevicePathProtocolGuid,\r
+ (VOID **) &ParentDevicePath\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Open the IO Abstraction(s) needed\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &PciIo,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Save original PCI attributes\r
+ //\r
+ if (!mPciAttributesSaved) {\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationGet,\r
+ 0,\r
+ &mOriginalPciAttributes\r
+ );\r
+ \r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+ mPciAttributesSaved = TRUE;\r
+ }\r
+\r
+ //\r
+ // Get supported PCI attributes\r
+ //\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationSupported,\r
+ 0,\r
+ &Supports\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Supports &= (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16);\r
+ if (Supports == 0 || Supports == (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ } \r
+ \r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_PROGRESS_CODE,\r
+ EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_ENABLE,\r
+ ParentDevicePath\r
+ );\r
+ //\r
+ // Enable the device and make sure VGA cycles are being forwarded to this VGA device\r
+ //\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationEnable,\r
+ EFI_PCI_DEVICE_ENABLE,\r
+ NULL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
+ EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_RESOURCE_CONFLICT,\r
+ ParentDevicePath\r
+ );\r
+ goto Done;\r
+ }\r
+\r
+ if (RemainingDevicePath != NULL) {\r
+ if (IsDevicePathEnd (RemainingDevicePath)) {\r
+ //\r
+ // If RemainingDevicePath is the End of Device Path Node,\r
+ // don't create any child device and return EFI_SUCESS\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+ }\r
+ \r
+ //\r
+ // Create child handle and install GraphicsOutputProtocol on it\r
+ //\r
+ Status = FbGopChildHandleInstall (\r
+ This,\r
+ Controller,\r
+ PciIo,\r
+ NULL,\r
+ ParentDevicePath,\r
+ RemainingDevicePath\r
+ );\r
+ \r
+Done:\r
+ if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) {\r
+ \r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_PROGRESS_CODE,\r
+ EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_DISABLE,\r
+ ParentDevicePath\r
+ );\r
+\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_PROGRESS_CODE,\r
+ EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_NOT_DETECTED,\r
+ ParentDevicePath\r
+ );\r
+ if (!HasChildHandle (Controller)) {\r
+ if (mPciAttributesSaved) {\r
+ //\r
+ // Restore original PCI attributes\r
+ //\r
+ PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationSet,\r
+ mOriginalPciAttributes,\r
+ NULL\r
+ );\r
+ }\r
+ }\r
+ //\r
+ // Release PCI I/O Protocols on the controller handle.\r
+ //\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Stop.\r
+\r
+ @param This Pointer to driver binding protocol\r
+ @param Controller Controller handle to connect\r
+ @param NumberOfChildren Number of children handle created by this driver\r
+ @param ChildHandleBuffer Buffer containing child handle created\r
+\r
+ @retval EFI_SUCCESS Driver disconnected successfully from controller\r
+ @retval EFI_UNSUPPORTED Cannot find FB_VIDEO_DEV structure\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ BOOLEAN AllChildrenStopped;\r
+ UINTN Index;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+\r
+ AllChildrenStopped = TRUE;\r
+\r
+ if (NumberOfChildren == 0) {\r
+ //\r
+ // Close PCI I/O protocol on the controller handle\r
+ //\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ for (Index = 0; Index < NumberOfChildren; Index++) {\r
+ \r
+ Status = EFI_SUCCESS;\r
+\r
+ FbGopChildHandleUninstall (This, Controller, ChildHandleBuffer[Index]);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ AllChildrenStopped = FALSE;\r
+ }\r
+ }\r
+\r
+ if (!AllChildrenStopped) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ if (!HasChildHandle (Controller)) {\r
+ if (mPciAttributesSaved) {\r
+ Status = gBS->HandleProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &PciIo\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ \r
+ //\r
+ // Restore original PCI attributes\r
+ //\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationSet,\r
+ mOriginalPciAttributes,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+ }\r
+\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+ Install child handles if the Handle supports MBR format.\r
+\r
+ @param This Calling context.\r
+ @param ParentHandle Parent Handle\r
+ @param ParentPciIo Parent PciIo interface\r
+ @param ParentLegacyBios Parent LegacyBios interface\r
+ @param ParentDevicePath Parent Device Path\r
+ @param RemainingDevicePath Remaining Device Path\r
+\r
+ @retval EFI_SUCCESS If a child handle was added\r
+ @retval other A child handle was not added\r
+\r
+**/\r
+EFI_STATUS\r
+FbGopChildHandleInstall (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ParentHandle,\r
+ IN EFI_PCI_IO_PROTOCOL *ParentPciIo,\r
+ IN VOID *ParentLegacyBios,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ FB_VIDEO_DEV *FbGopPrivate;\r
+ PCI_TYPE00 Pci;\r
+ ACPI_ADR_DEVICE_PATH AcpiDeviceNode;\r
+ BOOLEAN ProtocolInstalled;\r
+\r
+ //\r
+ // Allocate the private device structure for video device\r
+ //\r
+ FbGopPrivate = (FB_VIDEO_DEV *) AllocateZeroPool (\r
+ sizeof (FB_VIDEO_DEV)\r
+ );\r
+ if (NULL == FbGopPrivate) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // See if this is a VGA compatible controller or not\r
+ //\r
+ Status = ParentPciIo->Pci.Read (\r
+ ParentPciIo,\r
+ EfiPciIoWidthUint32,\r
+ 0,\r
+ sizeof (Pci) / sizeof (UINT32),\r
+ &Pci\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
+ EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_CONTROLLER_ERROR,\r
+ ParentDevicePath\r
+ );\r
+ goto Done;\r
+ }\r
+ \r
+ //\r
+ // Initialize the child private structure\r
+ //\r
+ FbGopPrivate->Signature = FB_VIDEO_DEV_SIGNATURE;\r
+\r
+ //\r
+ // Fill in Graphics Output specific mode structures\r
+ // \r
+ FbGopPrivate->ModeData = NULL;\r
+ \r
+ FbGopPrivate->VbeFrameBuffer = NULL;\r
+\r
+ FbGopPrivate->EdidDiscovered.SizeOfEdid = 0;\r
+ FbGopPrivate->EdidDiscovered.Edid = NULL;\r
+ FbGopPrivate->EdidActive.SizeOfEdid = 0;\r
+ FbGopPrivate->EdidActive.Edid = NULL;\r
+ \r
+ //\r
+ // Fill in the Graphics Output Protocol\r
+ //\r
+ FbGopPrivate->GraphicsOutput.QueryMode = FbGopGraphicsOutputQueryMode;\r
+ FbGopPrivate->GraphicsOutput.SetMode = FbGopGraphicsOutputSetMode;\r
+\r
+\r
+ //\r
+ // Allocate buffer for Graphics Output Protocol mode information\r
+ //\r
+ FbGopPrivate->GraphicsOutput.Mode = (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *) AllocatePool (\r
+ sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE)\r
+ );\r
+ if (NULL == FbGopPrivate->GraphicsOutput.Mode) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+\r
+ FbGopPrivate->GraphicsOutput.Mode->Info = (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) AllocatePool (\r
+ sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION)\r
+ );\r
+ if (NULL == FbGopPrivate->GraphicsOutput.Mode->Info) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Set Gop Device Path, here RemainingDevicePath will not be one End of Device Path Node.\r
+ //\r
+ if ((RemainingDevicePath == NULL) || (!IsDevicePathEnd (RemainingDevicePath))) {\r
+ if (RemainingDevicePath == NULL) {\r
+ ZeroMem (&AcpiDeviceNode, sizeof (ACPI_ADR_DEVICE_PATH));\r
+ AcpiDeviceNode.Header.Type = ACPI_DEVICE_PATH;\r
+ AcpiDeviceNode.Header.SubType = ACPI_ADR_DP;\r
+ AcpiDeviceNode.ADR = ACPI_DISPLAY_ADR (1, 0, 0, 1, 0, ACPI_ADR_DISPLAY_TYPE_VGA, 0, 0);\r
+ SetDevicePathNodeLength (&AcpiDeviceNode.Header, sizeof (ACPI_ADR_DEVICE_PATH));\r
+ \r
+ FbGopPrivate->GopDevicePath = AppendDevicePathNode (\r
+ ParentDevicePath,\r
+ (EFI_DEVICE_PATH_PROTOCOL *) &AcpiDeviceNode\r
+ );\r
+ } else {\r
+ FbGopPrivate->GopDevicePath = AppendDevicePathNode (ParentDevicePath, RemainingDevicePath);\r
+ }\r
+ \r
+ //\r
+ // Creat child handle and device path protocol firstly\r
+ //\r
+ FbGopPrivate->Handle = NULL;\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &FbGopPrivate->Handle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ FbGopPrivate->GopDevicePath,\r
+ NULL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+ }\r
+ \r
+ //\r
+ // When check for VBE, PCI I/O protocol is needed, so use parent's protocol interface temporally\r
+ //\r
+ FbGopPrivate->PciIo = ParentPciIo;\r
+\r
+ //\r
+ // Check for VESA BIOS Extensions for modes that are compatible with Graphics Output\r
+ //\r
+ Status = FbGopCheckForVbe (FbGopPrivate);\r
+ DEBUG ((EFI_D_INFO, "FbGopCheckForVbe - %r\n", Status));\r
+ \r
+ if (EFI_ERROR (Status)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ //goto Done; \r
+ }\r
+\r
+ ProtocolInstalled = FALSE;\r
+ \r
+ //\r
+ // Creat child handle and install Graphics Output Protocol,EDID Discovered/Active Protocol\r
+ //\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &FbGopPrivate->Handle,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ &FbGopPrivate->GraphicsOutput, \r
+ &gEfiEdidDiscoveredProtocolGuid,\r
+ &FbGopPrivate->EdidDiscovered, \r
+ &gEfiEdidActiveProtocolGuid,\r
+ &FbGopPrivate->EdidActive, \r
+ NULL\r
+ );\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // Open the Parent Handle for the child\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ ParentHandle,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &FbGopPrivate->PciIo,\r
+ This->DriverBindingHandle,\r
+ FbGopPrivate->Handle,\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+ ProtocolInstalled = TRUE;\r
+ }\r
+ \r
+Done:\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // Free private data structure\r
+ //\r
+ FbGopDeviceReleaseResource (FbGopPrivate);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Deregister an video child handle and free resources.\r
+\r
+ @param This Protocol instance pointer.\r
+ @param Controller Video controller handle\r
+ @param Handle Video child handle\r
+\r
+ @return EFI_STATUS\r
+\r
+**/\r
+EFI_STATUS\r
+FbGopChildHandleUninstall (\r
+ EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ EFI_HANDLE Controller,\r
+ EFI_HANDLE Handle\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput; \r
+ FB_VIDEO_DEV *FbGopPrivate;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+\r
+ FbGopPrivate = NULL;\r
+ GraphicsOutput = NULL;\r
+ PciIo = NULL;\r
+ Status = EFI_UNSUPPORTED;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ Handle,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ (VOID **) &GraphicsOutput,\r
+ This->DriverBindingHandle,\r
+ Handle,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (GraphicsOutput);\r
+ }\r
+ \r
+ if (FbGopPrivate == NULL) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Close PCI I/O protocol that opened by child handle\r
+ //\r
+ Status = gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Handle\r
+ );\r
+\r
+ //\r
+ // Uninstall protocols on child handle\r
+ //\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ FbGopPrivate->Handle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ FbGopPrivate->GopDevicePath,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ &FbGopPrivate->GraphicsOutput,\r
+ NULL\r
+ );\r
+ \r
+ if (EFI_ERROR (Status)) {\r
+ gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &PciIo,\r
+ This->DriverBindingHandle,\r
+ Handle,\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ return Status;\r
+ }\r
+ \r
+ //\r
+ // Release all allocated resources\r
+ //\r
+ FbGopDeviceReleaseResource (FbGopPrivate);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+ Release resource for biso video instance.\r
+\r
+ @param FbGopPrivate Video child device private data structure\r
+\r
+**/\r
+VOID\r
+FbGopDeviceReleaseResource (\r
+ FB_VIDEO_DEV *FbGopPrivate\r
+ )\r
+{\r
+ if (FbGopPrivate == NULL) {\r
+ return ;\r
+ }\r
+\r
+ //\r
+ // Release all the resourses occupied by the FB_VIDEO_DEV\r
+ //\r
+ \r
+ //\r
+ // Free VBE Frame Buffer\r
+ //\r
+ if (FbGopPrivate->VbeFrameBuffer != NULL) {\r
+ FreePool (FbGopPrivate->VbeFrameBuffer);\r
+ }\r
+ \r
+ //\r
+ // Free mode data\r
+ //\r
+ if (FbGopPrivate->ModeData != NULL) {\r
+ FreePool (FbGopPrivate->ModeData);\r
+ } \r
+\r
+ //\r
+ // Free graphics output protocol occupied resource\r
+ //\r
+ if (FbGopPrivate->GraphicsOutput.Mode != NULL) {\r
+ if (FbGopPrivate->GraphicsOutput.Mode->Info != NULL) {\r
+ FreePool (FbGopPrivate->GraphicsOutput.Mode->Info);\r
+ FbGopPrivate->GraphicsOutput.Mode->Info = NULL;\r
+ }\r
+ FreePool (FbGopPrivate->GraphicsOutput.Mode);\r
+ FbGopPrivate->GraphicsOutput.Mode = NULL;\r
+ } \r
+\r
+ if (FbGopPrivate->GopDevicePath!= NULL) {\r
+ FreePool (FbGopPrivate->GopDevicePath);\r
+ }\r
+\r
+ FreePool (FbGopPrivate);\r
+\r
+ return ;\r
+}\r
+\r
+\r
+\r
+/**\r
+ Check if all video child handles have been uninstalled.\r
+\r
+ @param Controller Video controller handle\r
+\r
+ @return TRUE Child handles exist.\r
+ @return FALSE All video child handles have been uninstalled.\r
+\r
+**/\r
+BOOLEAN\r
+HasChildHandle (\r
+ IN EFI_HANDLE Controller\r
+ )\r
+{\r
+ UINTN Index;\r
+ EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r
+ UINTN EntryCount;\r
+ BOOLEAN HasChild;\r
+ EFI_STATUS Status;\r
+\r
+ EntryCount = 0;\r
+ HasChild = FALSE;\r
+ Status = gBS->OpenProtocolInformation (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ &OpenInfoBuffer,\r
+ &EntryCount\r
+ );\r
+ for (Index = 0; Index < EntryCount; Index++) {\r
+ if ((OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {\r
+ HasChild = TRUE;\r
+ }\r
+ }\r
+ \r
+ return HasChild;\r
+}\r
+\r
+/**\r
+ Check for VBE device.\r
+\r
+ @param FbGopPrivate Pointer to FB_VIDEO_DEV structure\r
+\r
+ @retval EFI_SUCCESS VBE device found\r
+\r
+**/\r
+EFI_STATUS\r
+FbGopCheckForVbe (\r
+ IN OUT FB_VIDEO_DEV *FbGopPrivate\r
+ )\r
+{\r
+ EFI_STATUS Status; \r
+ FB_VIDEO_MODE_DATA *ModeBuffer;\r
+ FB_VIDEO_MODE_DATA *CurrentModeData; \r
+ UINTN ModeNumber; \r
+ UINTN BitsPerPixel; \r
+ UINTN BytesPerScanLine;\r
+ UINT32 HorizontalResolution;\r
+ UINT32 VerticalResolution;\r
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer; \r
+ EFI_HOB_GUID_TYPE *GuidHob;\r
+ FRAME_BUFFER_INFO *pFbInfo;\r
+ \r
+ Status = EFI_SUCCESS;\r
+ //\r
+ // Find the frame buffer information guid hob\r
+ //\r
+ GuidHob = GetFirstGuidHob (&gUefiFrameBufferInfoGuid);\r
+ ASSERT (GuidHob != NULL);\r
+ pFbInfo = (FRAME_BUFFER_INFO *)GET_GUID_HOB_DATA (GuidHob);\r
+ \r
+ //\r
+ // Add mode to the list of available modes\r
+ //\r
+ VbeFrameBuffer = NULL;\r
+ ModeBuffer = NULL;\r
+ \r
+ ModeNumber = 1; \r
+ BitsPerPixel = pFbInfo->BitsPerPixel;\r
+ HorizontalResolution = pFbInfo->HorizontalResolution;\r
+ VerticalResolution = pFbInfo->VerticalResolution;\r
+ BytesPerScanLine = HorizontalResolution * (BitsPerPixel / 8);\r
+ \r
+ ModeBuffer = (FB_VIDEO_MODE_DATA *) AllocatePool (\r
+ ModeNumber * sizeof (FB_VIDEO_MODE_DATA)\r
+ );\r
+ if (NULL == ModeBuffer) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+\r
+ VbeFrameBuffer =\r
+ (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) AllocatePool (\r
+ BytesPerScanLine * VerticalResolution\r
+ );\r
+ if (NULL == VbeFrameBuffer) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+ \r
+ if (FbGopPrivate->ModeData != NULL) {\r
+ FreePool (FbGopPrivate->ModeData);\r
+ }\r
+ \r
+ if (FbGopPrivate->VbeFrameBuffer != NULL) {\r
+ FreePool (FbGopPrivate->VbeFrameBuffer);\r
+ } \r
+ \r
+ CurrentModeData = &ModeBuffer[ModeNumber - 1];\r
+ CurrentModeData->BytesPerScanLine = (UINT16)BytesPerScanLine;\r
+ \r
+ CurrentModeData->Red = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Red); \r
+ CurrentModeData->Blue = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Blue); \r
+ CurrentModeData->Green = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Green); \r
+ CurrentModeData->Reserved = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Reserved); \r
+ \r
+ CurrentModeData->BitsPerPixel = (UINT32)BitsPerPixel;\r
+ CurrentModeData->HorizontalResolution = HorizontalResolution;\r
+ CurrentModeData->VerticalResolution = VerticalResolution; \r
+ CurrentModeData->FrameBufferSize = CurrentModeData->BytesPerScanLine * CurrentModeData->VerticalResolution; \r
+ CurrentModeData->LinearFrameBuffer = (VOID *) (UINTN) pFbInfo->LinearFrameBuffer;\r
+ CurrentModeData->VbeModeNumber = 0;\r
+ CurrentModeData->ColorDepth = 32;\r
+ CurrentModeData->RefreshRate = 60;\r
+ \r
+ CurrentModeData->PixelFormat = PixelBitMask;\r
+ if ((CurrentModeData->BitsPerPixel == 32) &&\r
+ (CurrentModeData->Red.Mask == 0xff) && (CurrentModeData->Green.Mask == 0xff) && (CurrentModeData->Blue.Mask == 0xff)) {\r
+ if ((CurrentModeData->Red.Position == 0) && (CurrentModeData->Green.Position == 8) && (CurrentModeData->Blue.Position == 16)) {\r
+ CurrentModeData->PixelFormat = PixelRedGreenBlueReserved8BitPerColor;\r
+ } else if ((CurrentModeData->Blue.Position == 0) && (CurrentModeData->Green.Position == 8) && (CurrentModeData->Red.Position == 16)) {\r
+ CurrentModeData->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;\r
+ }\r
+ } \r
+ \r
+ CopyMem (&(CurrentModeData->PixelBitMask), &mPixelBitMask, sizeof (EFI_PIXEL_BITMASK)); \r
+ \r
+ FbGopPrivate->ModeData = ModeBuffer;\r
+ FbGopPrivate->VbeFrameBuffer = VbeFrameBuffer;\r
+ \r
+ //\r
+ // Assign Gop's Blt function\r
+ //\r
+ FbGopPrivate->GraphicsOutput.Blt = FbGopGraphicsOutputVbeBlt;\r
+ \r
+ FbGopPrivate->GraphicsOutput.Mode->MaxMode = 1;\r
+ FbGopPrivate->GraphicsOutput.Mode->Mode = 0; \r
+ FbGopPrivate->GraphicsOutput.Mode->Info->Version = 0;\r
+ FbGopPrivate->GraphicsOutput.Mode->Info->HorizontalResolution = HorizontalResolution;\r
+ FbGopPrivate->GraphicsOutput.Mode->Info->VerticalResolution = VerticalResolution; \r
+ FbGopPrivate->GraphicsOutput.Mode->Info->PixelFormat = CurrentModeData->PixelFormat;\r
+ CopyMem (&(FbGopPrivate->GraphicsOutput.Mode->Info->PixelInformation), &mPixelBitMask, sizeof (EFI_PIXEL_BITMASK)); \r
+ FbGopPrivate->GraphicsOutput.Mode->Info->PixelsPerScanLine = HorizontalResolution; \r
+ FbGopPrivate->GraphicsOutput.Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);\r
+ FbGopPrivate->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) CurrentModeData->LinearFrameBuffer;\r
+ FbGopPrivate->GraphicsOutput.Mode->FrameBufferSize = CurrentModeData->FrameBufferSize;\r
+ \r
+ //\r
+ // Find the best mode to initialize\r
+ // \r
+\r
+Done:\r
+ //\r
+ // If there was an error, then free the mode structure\r
+ //\r
+ if (EFI_ERROR (Status)) {\r
+ \r
+ if (VbeFrameBuffer != NULL) {\r
+ FreePool (VbeFrameBuffer);\r
+ } \r
+ \r
+ if (ModeBuffer != NULL) {\r
+ FreePool (ModeBuffer);\r
+ } \r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+//\r
+// Graphics Output Protocol Member Functions for VESA BIOS Extensions\r
+//\r
+\r
+/**\r
+ Graphics Output protocol interface to get video mode.\r
+\r
+ @param This Protocol instance pointer.\r
+ @param ModeNumber The mode number to return information on.\r
+ @param SizeOfInfo A pointer to the size, in bytes, of the Info\r
+ buffer.\r
+ @param Info Caller allocated buffer that returns information\r
+ about ModeNumber.\r
+\r
+ @retval EFI_SUCCESS Mode information returned.\r
+ @retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the\r
+ video mode.\r
+ @retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()\r
+ @retval EFI_INVALID_PARAMETER One of the input args was NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopGraphicsOutputQueryMode (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r
+ IN UINT32 ModeNumber,\r
+ OUT UINTN *SizeOfInfo,\r
+ OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info\r
+ )\r
+{\r
+ FB_VIDEO_DEV *FbGopPrivate;\r
+ FB_VIDEO_MODE_DATA *ModeData;\r
+\r
+ FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);\r
+\r
+ if (This == NULL || Info == NULL || SizeOfInfo == NULL || ModeNumber >= This->Mode->MaxMode) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ *Info = (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) AllocatePool (\r
+ sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION)\r
+ );\r
+ if (NULL == *Info) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ *SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);\r
+\r
+ ModeData = &FbGopPrivate->ModeData[ModeNumber];\r
+ (*Info)->Version = 0;\r
+ (*Info)->HorizontalResolution = ModeData->HorizontalResolution;\r
+ (*Info)->VerticalResolution = ModeData->VerticalResolution;\r
+ (*Info)->PixelFormat = ModeData->PixelFormat;\r
+ CopyMem (&((*Info)->PixelInformation), &(ModeData->PixelBitMask), sizeof(ModeData->PixelBitMask));\r
+\r
+ (*Info)->PixelsPerScanLine = (ModeData->BytesPerScanLine * 8) / ModeData->BitsPerPixel;\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Graphics Output protocol interface to set video mode.\r
+\r
+ @param This Protocol instance pointer.\r
+ @param ModeNumber The mode number to be set.\r
+\r
+ @retval EFI_SUCCESS Graphics mode was changed.\r
+ @retval EFI_DEVICE_ERROR The device had an error and could not complete the\r
+ request.\r
+ @retval EFI_UNSUPPORTED ModeNumber is not supported by this device.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopGraphicsOutputSetMode (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,\r
+ IN UINT32 ModeNumber\r
+ )\r
+{ \r
+ FB_VIDEO_DEV *FbGopPrivate;\r
+ FB_VIDEO_MODE_DATA *ModeData;\r
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;\r
+\r
+ if (This == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);\r
+\r
+ ModeData = &FbGopPrivate->ModeData[ModeNumber];\r
+\r
+ if (ModeNumber >= This->Mode->MaxMode) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+ \r
+ if (ModeNumber == This->Mode->Mode) {\r
+ //\r
+ // Clear screen to black\r
+ // \r
+ ZeroMem (&Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
+ FbGopGraphicsOutputVbeBlt (\r
+ This,\r
+ &Background,\r
+ EfiBltVideoFill,\r
+ 0,\r
+ 0,\r
+ 0,\r
+ 0,\r
+ ModeData->HorizontalResolution,\r
+ ModeData->VerticalResolution,\r
+ 0\r
+ );\r
+ return EFI_SUCCESS;\r
+ } else {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+ \r
+}\r
+\r
+/**\r
+ Update physical frame buffer, copy 4 bytes block, then copy remaining bytes.\r
+\r
+ @param PciIo The pointer of EFI_PCI_IO_PROTOCOL\r
+ @param VbeBuffer The data to transfer to screen\r
+ @param MemAddress Physical frame buffer base address\r
+ @param DestinationX The X coordinate of the destination for BltOperation\r
+ @param DestinationY The Y coordinate of the destination for BltOperation\r
+ @param TotalBytes The total bytes of copy\r
+ @param VbePixelWidth Bytes per pixel\r
+ @param BytesPerScanLine Bytes per scan line\r
+\r
+**/\r
+VOID\r
+CopyVideoBuffer (\r
+ IN EFI_PCI_IO_PROTOCOL *PciIo,\r
+ IN UINT8 *VbeBuffer,\r
+ IN VOID *MemAddress,\r
+ IN UINTN DestinationX,\r
+ IN UINTN DestinationY,\r
+ IN UINTN TotalBytes,\r
+ IN UINT32 VbePixelWidth,\r
+ IN UINTN BytesPerScanLine\r
+ )\r
+{\r
+ UINTN FrameBufferAddr;\r
+ UINTN CopyBlockNum;\r
+ UINTN RemainingBytes;\r
+ UINTN UnalignedBytes;\r
+ EFI_STATUS Status;\r
+\r
+ FrameBufferAddr = (UINTN) MemAddress + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth;\r
+\r
+ //\r
+ // If TotalBytes is less than 4 bytes, only start byte copy.\r
+ //\r
+ if (TotalBytes < 4) {\r
+ Status = PciIo->Mem.Write (\r
+ PciIo,\r
+ EfiPciIoWidthUint8,\r
+ EFI_PCI_IO_PASS_THROUGH_BAR,\r
+ (UINT64) FrameBufferAddr,\r
+ TotalBytes,\r
+ VbeBuffer\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ return;\r
+ }\r
+\r
+ //\r
+ // If VbeBuffer is not 4-byte aligned, start byte copy.\r
+ //\r
+ UnalignedBytes = (4 - ((UINTN) VbeBuffer & 0x3)) & 0x3;\r
+\r
+ if (UnalignedBytes != 0) {\r
+ Status = PciIo->Mem.Write (\r
+ PciIo,\r
+ EfiPciIoWidthUint8,\r
+ EFI_PCI_IO_PASS_THROUGH_BAR,\r
+ (UINT64) FrameBufferAddr,\r
+ UnalignedBytes,\r
+ VbeBuffer\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ FrameBufferAddr += UnalignedBytes;\r
+ VbeBuffer += UnalignedBytes;\r
+ }\r
+\r
+ //\r
+ // Calculate 4-byte block count and remaining bytes.\r
+ //\r
+ CopyBlockNum = (TotalBytes - UnalignedBytes) >> 2;\r
+ RemainingBytes = (TotalBytes - UnalignedBytes) & 3;\r
+\r
+ //\r
+ // Copy 4-byte block and remaining bytes to physical frame buffer.\r
+ //\r
+ if (CopyBlockNum != 0) {\r
+ Status = PciIo->Mem.Write (\r
+ PciIo,\r
+ EfiPciIoWidthUint32,\r
+ EFI_PCI_IO_PASS_THROUGH_BAR,\r
+ (UINT64) FrameBufferAddr,\r
+ CopyBlockNum,\r
+ VbeBuffer\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ if (RemainingBytes != 0) {\r
+ FrameBufferAddr += (CopyBlockNum << 2);\r
+ VbeBuffer += (CopyBlockNum << 2);\r
+ Status = PciIo->Mem.Write (\r
+ PciIo,\r
+ EfiPciIoWidthUint8,\r
+ EFI_PCI_IO_PASS_THROUGH_BAR,\r
+ (UINT64) FrameBufferAddr,\r
+ RemainingBytes,\r
+ VbeBuffer\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+}\r
+\r
+/**\r
+ Worker function to block transfer for VBE device.\r
+\r
+ @param FbGopPrivate Instance of FB_VIDEO_DEV\r
+ @param BltBuffer The data to transfer to screen\r
+ @param BltOperation The operation to perform\r
+ @param SourceX The X coordinate of the source for BltOperation\r
+ @param SourceY The Y coordinate of the source for BltOperation\r
+ @param DestinationX The X coordinate of the destination for\r
+ BltOperation\r
+ @param DestinationY The Y coordinate of the destination for\r
+ BltOperation\r
+ @param Width The width of a rectangle in the blt rectangle in\r
+ pixels\r
+ @param Height The height of a rectangle in the blt rectangle in\r
+ pixels\r
+ @param Delta Not used for EfiBltVideoFill and\r
+ EfiBltVideoToVideo operation. If a Delta of 0 is\r
+ used, the entire BltBuffer will be operated on. If\r
+ a subrectangle of the BltBuffer is used, then\r
+ Delta represents the number of bytes in a row of\r
+ the BltBuffer.\r
+ @param Mode Mode data.\r
+\r
+ @retval EFI_INVALID_PARAMETER Invalid parameter passed in\r
+ @retval EFI_SUCCESS Blt operation success\r
+\r
+**/\r
+EFI_STATUS\r
+FbGopVbeBltWorker (\r
+ IN FB_VIDEO_DEV *FbGopPrivate,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r
+ IN UINTN SourceX,\r
+ IN UINTN SourceY,\r
+ IN UINTN DestinationX,\r
+ IN UINTN DestinationY,\r
+ IN UINTN Width,\r
+ IN UINTN Height,\r
+ IN UINTN Delta,\r
+ IN FB_VIDEO_MODE_DATA *Mode\r
+ )\r
+{\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ EFI_TPL OriginalTPL;\r
+ UINTN DstY;\r
+ UINTN SrcY;\r
+ UINTN DstX;\r
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;\r
+ VOID *MemAddress;\r
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;\r
+ UINTN BytesPerScanLine;\r
+ UINTN Index;\r
+ UINT8 *VbeBuffer;\r
+ UINT8 *VbeBuffer1;\r
+ UINT8 *BltUint8;\r
+ UINT32 VbePixelWidth;\r
+ UINT32 Pixel;\r
+ UINTN TotalBytes;\r
+\r
+ PciIo = FbGopPrivate->PciIo;\r
+\r
+ VbeFrameBuffer = FbGopPrivate->VbeFrameBuffer;\r
+ MemAddress = Mode->LinearFrameBuffer;\r
+ BytesPerScanLine = Mode->BytesPerScanLine;\r
+ VbePixelWidth = Mode->BitsPerPixel / 8;\r
+ BltUint8 = (UINT8 *) BltBuffer;\r
+ TotalBytes = Width * VbePixelWidth;\r
+\r
+ if (((UINTN) BltOperation) >= EfiGraphicsOutputBltOperationMax) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (Width == 0 || Height == 0) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ //\r
+ // We need to fill the Virtual Screen buffer with the blt data.\r
+ // The virtual screen is upside down, as the first row is the bootom row of\r
+ // the image.\r
+ //\r
+ if (BltOperation == EfiBltVideoToBltBuffer) {\r
+ //\r
+ // Video to BltBuffer: Source is Video, destination is BltBuffer\r
+ //\r
+ if (SourceY + Height > Mode->VerticalResolution) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (SourceX + Width > Mode->HorizontalResolution) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ } else {\r
+ //\r
+ // BltBuffer to Video: Source is BltBuffer, destination is Video\r
+ //\r
+ if (DestinationY + Height > Mode->VerticalResolution) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (DestinationX + Width > Mode->HorizontalResolution) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ }\r
+ //\r
+ // If Delta is zero, then the entire BltBuffer is being used, so Delta\r
+ // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r
+ // the number of bytes in each row can be computed.\r
+ //\r
+ if (Delta == 0) {\r
+ Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);\r
+ }\r
+ //\r
+ // We have to raise to TPL Notify, so we make an atomic write the frame buffer.\r
+ // We would not want a timer based event (Cursor, ...) to come in while we are\r
+ // doing this operation.\r
+ //\r
+ OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY);\r
+\r
+ switch (BltOperation) {\r
+ case EfiBltVideoToBltBuffer:\r
+ for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {\r
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (BltUint8 + DstY * Delta + DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
+ //\r
+ // Shuffle the packed bytes in the hardware buffer to match EFI_GRAPHICS_OUTPUT_BLT_PIXEL\r
+ //\r
+ VbeBuffer = ((UINT8 *) VbeFrameBuffer + (SrcY * BytesPerScanLine + SourceX * VbePixelWidth));\r
+ for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {\r
+ Pixel = VbeBuffer[0] | VbeBuffer[1] << 8 | VbeBuffer[2] << 16 | VbeBuffer[3] << 24;\r
+ Blt->Red = (UINT8) ((Pixel >> Mode->Red.Position) & Mode->Red.Mask);\r
+ Blt->Blue = (UINT8) ((Pixel >> Mode->Blue.Position) & Mode->Blue.Mask);\r
+ Blt->Green = (UINT8) ((Pixel >> Mode->Green.Position) & Mode->Green.Mask);\r
+ Blt->Reserved = 0;\r
+ Blt++;\r
+ VbeBuffer += VbePixelWidth;\r
+ }\r
+\r
+ }\r
+ break;\r
+\r
+ case EfiBltVideoToVideo:\r
+ for (Index = 0; Index < Height; Index++) {\r
+ if (DestinationY <= SourceY) {\r
+ SrcY = SourceY + Index;\r
+ DstY = DestinationY + Index;\r
+ } else {\r
+ SrcY = SourceY + Height - Index - 1;\r
+ DstY = DestinationY + Height - Index - 1;\r
+ }\r
+\r
+ VbeBuffer = ((UINT8 *) VbeFrameBuffer + DstY * BytesPerScanLine + DestinationX * VbePixelWidth);\r
+ VbeBuffer1 = ((UINT8 *) VbeFrameBuffer + SrcY * BytesPerScanLine + SourceX * VbePixelWidth);\r
+\r
+ gBS->CopyMem (\r
+ VbeBuffer,\r
+ VbeBuffer1,\r
+ TotalBytes\r
+ );\r
+\r
+ //\r
+ // Update physical frame buffer.\r
+ //\r
+ CopyVideoBuffer (\r
+ PciIo,\r
+ VbeBuffer,\r
+ MemAddress,\r
+ DestinationX,\r
+ DstY,\r
+ TotalBytes,\r
+ VbePixelWidth,\r
+ BytesPerScanLine\r
+ );\r
+ }\r
+ break;\r
+\r
+ case EfiBltVideoFill:\r
+ VbeBuffer = (UINT8 *) ((UINTN) VbeFrameBuffer + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth);\r
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) BltUint8;\r
+ //\r
+ // Shuffle the RGB fields in EFI_GRAPHICS_OUTPUT_BLT_PIXEL to match the hardware buffer\r
+ //\r
+ Pixel = ((Blt->Red & Mode->Red.Mask) << Mode->Red.Position) |\r
+ (\r
+ (Blt->Green & Mode->Green.Mask) <<\r
+ Mode->Green.Position\r
+ ) |\r
+ ((Blt->Blue & Mode->Blue.Mask) << Mode->Blue.Position);\r
+\r
+ for (Index = 0; Index < Width; Index++) {\r
+ gBS->CopyMem (\r
+ VbeBuffer,\r
+ &Pixel,\r
+ VbePixelWidth\r
+ );\r
+ VbeBuffer += VbePixelWidth;\r
+ }\r
+\r
+ VbeBuffer = (UINT8 *) ((UINTN) VbeFrameBuffer + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth);\r
+ for (DstY = DestinationY + 1; DstY < (Height + DestinationY); DstY++) {\r
+ gBS->CopyMem (\r
+ (VOID *) ((UINTN) VbeFrameBuffer + (DstY * BytesPerScanLine) + DestinationX * VbePixelWidth),\r
+ VbeBuffer,\r
+ TotalBytes\r
+ );\r
+ }\r
+\r
+ for (DstY = DestinationY; DstY < (Height + DestinationY); DstY++) {\r
+ //\r
+ // Update physical frame buffer.\r
+ //\r
+ CopyVideoBuffer (\r
+ PciIo,\r
+ VbeBuffer,\r
+ MemAddress,\r
+ DestinationX,\r
+ DstY,\r
+ TotalBytes,\r
+ VbePixelWidth,\r
+ BytesPerScanLine\r
+ );\r
+ }\r
+ break;\r
+\r
+ case EfiBltBufferToVideo:\r
+ for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {\r
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (BltUint8 + (SrcY * Delta) + (SourceX) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
+ VbeBuffer = ((UINT8 *) VbeFrameBuffer + (DstY * BytesPerScanLine + DestinationX * VbePixelWidth));\r
+ for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {\r
+ //\r
+ // Shuffle the RGB fields in EFI_GRAPHICS_OUTPUT_BLT_PIXEL to match the hardware buffer\r
+ //\r
+ Pixel = ((Blt->Red & Mode->Red.Mask) << Mode->Red.Position) |\r
+ ((Blt->Green & Mode->Green.Mask) << Mode->Green.Position) |\r
+ ((Blt->Blue & Mode->Blue.Mask) << Mode->Blue.Position);\r
+ gBS->CopyMem (\r
+ VbeBuffer,\r
+ &Pixel,\r
+ VbePixelWidth\r
+ );\r
+ Blt++;\r
+ VbeBuffer += VbePixelWidth;\r
+ }\r
+\r
+ VbeBuffer = ((UINT8 *) VbeFrameBuffer + (DstY * BytesPerScanLine + DestinationX * VbePixelWidth));\r
+\r
+ //\r
+ // Update physical frame buffer.\r
+ //\r
+ CopyVideoBuffer (\r
+ PciIo,\r
+ VbeBuffer,\r
+ MemAddress,\r
+ DestinationX,\r
+ DstY,\r
+ TotalBytes,\r
+ VbePixelWidth,\r
+ BytesPerScanLine\r
+ );\r
+ }\r
+ break;\r
+\r
+ default: ;\r
+ }\r
+\r
+ gBS->RestoreTPL (OriginalTPL);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Graphics Output protocol instance to block transfer for VBE device.\r
+\r
+ @param This Pointer to Graphics Output protocol instance\r
+ @param BltBuffer The data to transfer to screen\r
+ @param BltOperation The operation to perform\r
+ @param SourceX The X coordinate of the source for BltOperation\r
+ @param SourceY The Y coordinate of the source for BltOperation\r
+ @param DestinationX The X coordinate of the destination for\r
+ BltOperation\r
+ @param DestinationY The Y coordinate of the destination for\r
+ BltOperation\r
+ @param Width The width of a rectangle in the blt rectangle in\r
+ pixels\r
+ @param Height The height of a rectangle in the blt rectangle in\r
+ pixels\r
+ @param Delta Not used for EfiBltVideoFill and\r
+ EfiBltVideoToVideo operation. If a Delta of 0 is\r
+ used, the entire BltBuffer will be operated on. If\r
+ a subrectangle of the BltBuffer is used, then\r
+ Delta represents the number of bytes in a row of\r
+ the BltBuffer.\r
+\r
+ @retval EFI_INVALID_PARAMETER Invalid parameter passed in\r
+ @retval EFI_SUCCESS Blt operation success\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopGraphicsOutputVbeBlt (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r
+ IN UINTN SourceX,\r
+ IN UINTN SourceY,\r
+ IN UINTN DestinationX,\r
+ IN UINTN DestinationY,\r
+ IN UINTN Width,\r
+ IN UINTN Height,\r
+ IN UINTN Delta\r
+ )\r
+{\r
+ FB_VIDEO_DEV *FbGopPrivate;\r
+ FB_VIDEO_MODE_DATA *Mode;\r
+\r
+ if (This == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);\r
+ Mode = &FbGopPrivate->ModeData[This->Mode->Mode];\r
+\r
+ return FbGopVbeBltWorker (\r
+ FbGopPrivate,\r
+ BltBuffer,\r
+ BltOperation,\r
+ SourceX,\r
+ SourceY,\r
+ DestinationX,\r
+ DestinationY,\r
+ Width,\r
+ Height,\r
+ Delta,\r
+ Mode\r
+ );\r
+}\r
+\r
+\r
+/**\r
+ The user Entry Point for module UefiFbGop. The user code starts with this function.\r
+\r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
+ @param[in] SystemTable A pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS The entry point is executed successfully.\r
+ @retval other Some error occurs when executing this entry point.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FbGopEntryPoint(\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HOB_GUID_TYPE *GuidHob;\r
+ \r
+ //\r
+ // Find the frame buffer information guid hob\r
+ //\r
+ GuidHob = GetFirstGuidHob (&gUefiFrameBufferInfoGuid);\r
+ if (GuidHob != NULL) { \r
+ //\r
+ // Install driver model protocol(s).\r
+ //\r
+ Status = EfiLibInstallDriverBindingComponentName2 (\r
+ ImageHandle,\r
+ SystemTable,\r
+ &gFbGopDriverBinding,\r
+ ImageHandle,\r
+ &gFbGopComponentName,\r
+ &gFbGopComponentName2\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ } else {\r
+ DEBUG ((EFI_D_ERROR, "No FrameBuffer information from coreboot. NO GOP driver !!!\n"));\r
+ Status = EFI_ABORTED;\r
+ }\r
+ return Status; \r
+}\r
+\r
projects / mirror_edk2.git / blobdiff