diff options
Diffstat (limited to 'roms/edk2/OvmfPkg/QemuVideoDxe/Driver.c')
| -rw-r--r-- | roms/edk2/OvmfPkg/QemuVideoDxe/Driver.c | 1006 |
1 files changed, 1006 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/QemuVideoDxe/Driver.c b/roms/edk2/OvmfPkg/QemuVideoDxe/Driver.c new file mode 100644 index 000000000..85edfcb1d --- /dev/null +++ b/roms/edk2/OvmfPkg/QemuVideoDxe/Driver.c @@ -0,0 +1,1006 @@ +/** @file
+ This driver is a sample implementation of the Graphics Output Protocol for
+ the QEMU (Cirrus Logic 5446) video controller.
+
+ Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Qemu.h"
+#include <IndustryStandard/Acpi.h>
+
+EFI_DRIVER_BINDING_PROTOCOL gQemuVideoDriverBinding = {
+ QemuVideoControllerDriverSupported,
+ QemuVideoControllerDriverStart,
+ QemuVideoControllerDriverStop,
+ 0x10,
+ NULL,
+ NULL
+};
+
+QEMU_VIDEO_CARD gQemuVideoCardList[] = {
+ {
+ PCI_CLASS_DISPLAY_VGA,
+ CIRRUS_LOGIC_VENDOR_ID,
+ CIRRUS_LOGIC_5430_DEVICE_ID,
+ QEMU_VIDEO_CIRRUS_5430,
+ L"Cirrus 5430"
+ },{
+ PCI_CLASS_DISPLAY_VGA,
+ CIRRUS_LOGIC_VENDOR_ID,
+ CIRRUS_LOGIC_5430_ALTERNATE_DEVICE_ID,
+ QEMU_VIDEO_CIRRUS_5430,
+ L"Cirrus 5430"
+ },{
+ PCI_CLASS_DISPLAY_VGA,
+ CIRRUS_LOGIC_VENDOR_ID,
+ CIRRUS_LOGIC_5446_DEVICE_ID,
+ QEMU_VIDEO_CIRRUS_5446,
+ L"Cirrus 5446"
+ },{
+ PCI_CLASS_DISPLAY_VGA,
+ 0x1234,
+ 0x1111,
+ QEMU_VIDEO_BOCHS_MMIO,
+ L"QEMU Standard VGA"
+ },{
+ PCI_CLASS_DISPLAY_OTHER,
+ 0x1234,
+ 0x1111,
+ QEMU_VIDEO_BOCHS_MMIO,
+ L"QEMU Standard VGA (secondary)"
+ },{
+ PCI_CLASS_DISPLAY_VGA,
+ 0x1b36,
+ 0x0100,
+ QEMU_VIDEO_BOCHS,
+ L"QEMU QXL VGA"
+ },{
+ PCI_CLASS_DISPLAY_VGA,
+ 0x1af4,
+ 0x1050,
+ QEMU_VIDEO_BOCHS_MMIO,
+ L"QEMU VirtIO VGA"
+ },{
+ PCI_CLASS_DISPLAY_VGA,
+ 0x15ad,
+ 0x0405,
+ QEMU_VIDEO_VMWARE_SVGA,
+ L"QEMU VMWare SVGA"
+ },{
+ 0 /* end of list */
+ }
+};
+
+static QEMU_VIDEO_CARD*
+QemuVideoDetect(
+ IN UINT8 SubClass,
+ IN UINT16 VendorId,
+ IN UINT16 DeviceId
+ )
+{
+ UINTN Index = 0;
+
+ while (gQemuVideoCardList[Index].VendorId != 0) {
+ if (gQemuVideoCardList[Index].SubClass == SubClass &&
+ gQemuVideoCardList[Index].VendorId == VendorId &&
+ gQemuVideoCardList[Index].DeviceId == DeviceId) {
+ return gQemuVideoCardList + Index;
+ }
+ Index++;
+ }
+ return NULL;
+}
+
+/**
+ Check if this device is supported.
+
+ @param This The driver binding protocol.
+ @param Controller The controller handle to check.
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS The bus supports this controller.
+ @retval EFI_UNSUPPORTED This device isn't supported.
+
+**/
+EFI_STATUS
+EFIAPI
+QemuVideoControllerDriverSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
+ QEMU_VIDEO_CARD *Card;
+
+ //
+ // Open the PCI I/O Protocol
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Read the PCI Configuration Header from the PCI Device
+ //
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint32,
+ 0,
+ sizeof (Pci) / sizeof (UINT32),
+ &Pci
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = EFI_UNSUPPORTED;
+ if (!IS_PCI_DISPLAY (&Pci)) {
+ goto Done;
+ }
+ Card = QemuVideoDetect(Pci.Hdr.ClassCode[1], Pci.Hdr.VendorId, Pci.Hdr.DeviceId);
+ if (Card != NULL) {
+ DEBUG ((DEBUG_INFO, "QemuVideo: %s detected\n", Card->Name));
+ Status = EFI_SUCCESS;
+ }
+
+Done:
+ //
+ // Close the PCI I/O Protocol
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ return Status;
+}
+
+/**
+ Start to process the controller.
+
+ @param This The USB bus driver binding instance.
+ @param Controller The controller to check.
+ @param RemainingDevicePath The remaining device patch.
+
+ @retval EFI_SUCCESS The controller is controlled by the usb bus.
+ @retval EFI_ALREADY_STARTED The controller is already controlled by the usb
+ bus.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
+
+**/
+EFI_STATUS
+EFIAPI
+QemuVideoControllerDriverStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+{
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+ QEMU_VIDEO_PRIVATE_DATA *Private;
+ BOOLEAN IsQxl;
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
+ ACPI_ADR_DEVICE_PATH AcpiDeviceNode;
+ PCI_TYPE00 Pci;
+ QEMU_VIDEO_CARD *Card;
+ EFI_PCI_IO_PROTOCOL *ChildPciIo;
+ UINT64 SupportedVgaIo;
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ //
+ // Allocate Private context data for GOP interface.
+ //
+ Private = AllocateZeroPool (sizeof (QEMU_VIDEO_PRIVATE_DATA));
+ if (Private == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto RestoreTpl;
+ }
+
+ //
+ // Set up context record
+ //
+ Private->Signature = QEMU_VIDEO_PRIVATE_DATA_SIGNATURE;
+
+ //
+ // Open PCI I/O Protocol
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &Private->PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ goto FreePrivate;
+ }
+
+ //
+ // Read the PCI Configuration Header from the PCI Device
+ //
+ Status = Private->PciIo->Pci.Read (
+ Private->PciIo,
+ EfiPciIoWidthUint32,
+ 0,
+ sizeof (Pci) / sizeof (UINT32),
+ &Pci
+ );
+ if (EFI_ERROR (Status)) {
+ goto ClosePciIo;
+ }
+
+ //
+ // Determine card variant.
+ //
+ Card = QemuVideoDetect(Pci.Hdr.ClassCode[1], Pci.Hdr.VendorId, Pci.Hdr.DeviceId);
+ if (Card == NULL) {
+ Status = EFI_DEVICE_ERROR;
+ goto ClosePciIo;
+ }
+ Private->Variant = Card->Variant;
+
+ //
+ // IsQxl is based on the detected Card->Variant, which at a later point might
+ // not match Private->Variant.
+ //
+ IsQxl = (BOOLEAN)(Card->Variant == QEMU_VIDEO_BOCHS);
+
+ //
+ // Save original PCI attributes
+ //
+ Status = Private->PciIo->Attributes (
+ Private->PciIo,
+ EfiPciIoAttributeOperationGet,
+ 0,
+ &Private->OriginalPciAttributes
+ );
+
+ if (EFI_ERROR (Status)) {
+ goto ClosePciIo;
+ }
+
+ //
+ // Get supported PCI attributes
+ //
+ Status = Private->PciIo->Attributes (
+ Private->PciIo,
+ EfiPciIoAttributeOperationSupported,
+ 0,
+ &SupportedVgaIo
+ );
+ if (EFI_ERROR (Status)) {
+ goto ClosePciIo;
+ }
+
+ SupportedVgaIo &= (UINT64)(EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16);
+ if (SupportedVgaIo == 0 && IS_PCI_VGA (&Pci)) {
+ Status = EFI_UNSUPPORTED;
+ goto ClosePciIo;
+ }
+
+ //
+ // Set new PCI attributes
+ //
+ Status = Private->PciIo->Attributes (
+ Private->PciIo,
+ EfiPciIoAttributeOperationEnable,
+ EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY | SupportedVgaIo,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ClosePciIo;
+ }
+
+ //
+ // Check whenever the qemu stdvga mmio bar is present (qemu 1.3+).
+ //
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO) {
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *MmioDesc;
+
+ Status = Private->PciIo->GetBarAttributes (
+ Private->PciIo,
+ PCI_BAR_IDX2,
+ NULL,
+ (VOID**) &MmioDesc
+ );
+ if (EFI_ERROR (Status) ||
+ MmioDesc->ResType != ACPI_ADDRESS_SPACE_TYPE_MEM) {
+ DEBUG ((DEBUG_INFO, "QemuVideo: No mmio bar, fallback to port io\n"));
+ Private->Variant = QEMU_VIDEO_BOCHS;
+ } else {
+ DEBUG ((DEBUG_INFO, "QemuVideo: Using mmio bar @ 0x%lx\n",
+ MmioDesc->AddrRangeMin));
+ }
+
+ if (!EFI_ERROR (Status)) {
+ FreePool (MmioDesc);
+ }
+ }
+
+ //
+ // VMWare SVGA is handled like Bochs (with port IO only).
+ //
+ if (Private->Variant == QEMU_VIDEO_VMWARE_SVGA) {
+ Private->Variant = QEMU_VIDEO_BOCHS;
+ Private->FrameBufferVramBarIndex = PCI_BAR_IDX1;
+ }
+
+ //
+ // Check if accessing the bochs interface works.
+ //
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO ||
+ Private->Variant == QEMU_VIDEO_BOCHS) {
+ UINT16 BochsId;
+ BochsId = BochsRead(Private, VBE_DISPI_INDEX_ID);
+ if ((BochsId & 0xFFF0) != VBE_DISPI_ID0) {
+ DEBUG ((DEBUG_INFO, "QemuVideo: BochsID mismatch (got 0x%x)\n", BochsId));
+ Status = EFI_DEVICE_ERROR;
+ goto RestoreAttributes;
+ }
+ }
+
+ //
+ // Get ParentDevicePath
+ //
+ Status = gBS->HandleProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ (VOID **) &ParentDevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ goto RestoreAttributes;
+ }
+
+ //
+ // Set Gop Device Path
+ //
+ ZeroMem (&AcpiDeviceNode, sizeof (ACPI_ADR_DEVICE_PATH));
+ AcpiDeviceNode.Header.Type = ACPI_DEVICE_PATH;
+ AcpiDeviceNode.Header.SubType = ACPI_ADR_DP;
+ AcpiDeviceNode.ADR = ACPI_DISPLAY_ADR (1, 0, 0, 1, 0, ACPI_ADR_DISPLAY_TYPE_VGA, 0, 0);
+ SetDevicePathNodeLength (&AcpiDeviceNode.Header, sizeof (ACPI_ADR_DEVICE_PATH));
+
+ Private->GopDevicePath = AppendDevicePathNode (
+ ParentDevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *) &AcpiDeviceNode
+ );
+ if (Private->GopDevicePath == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto RestoreAttributes;
+ }
+
+ //
+ // Create new child handle and install the device path protocol on it.
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Private->Handle,
+ &gEfiDevicePathProtocolGuid,
+ Private->GopDevicePath,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto FreeGopDevicePath;
+ }
+
+ //
+ // Construct video mode buffer
+ //
+ switch (Private->Variant) {
+ case QEMU_VIDEO_CIRRUS_5430:
+ case QEMU_VIDEO_CIRRUS_5446:
+ Status = QemuVideoCirrusModeSetup (Private);
+ break;
+ case QEMU_VIDEO_BOCHS_MMIO:
+ case QEMU_VIDEO_BOCHS:
+ Status = QemuVideoBochsModeSetup (Private, IsQxl);
+ break;
+ default:
+ ASSERT (FALSE);
+ Status = EFI_DEVICE_ERROR;
+ break;
+ }
+ if (EFI_ERROR (Status)) {
+ goto UninstallGopDevicePath;
+ }
+
+ //
+ // Start the GOP software stack.
+ //
+ Status = QemuVideoGraphicsOutputConstructor (Private);
+ if (EFI_ERROR (Status)) {
+ goto FreeModeData;
+ }
+
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Private->Handle,
+ &gEfiGraphicsOutputProtocolGuid,
+ &Private->GraphicsOutput,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto DestructQemuVideoGraphics;
+ }
+
+ //
+ // Reference parent handle from child handle.
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &ChildPciIo,
+ This->DriverBindingHandle,
+ Private->Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
+ if (EFI_ERROR (Status)) {
+ goto UninstallGop;
+ }
+
+#if defined MDE_CPU_IA32 || defined MDE_CPU_X64
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO ||
+ Private->Variant == QEMU_VIDEO_BOCHS) {
+ InstallVbeShim (Card->Name, Private->GraphicsOutput.Mode->FrameBufferBase);
+ }
+#endif
+
+ gBS->RestoreTPL (OldTpl);
+ return EFI_SUCCESS;
+
+UninstallGop:
+ gBS->UninstallProtocolInterface (Private->Handle,
+ &gEfiGraphicsOutputProtocolGuid, &Private->GraphicsOutput);
+
+DestructQemuVideoGraphics:
+ QemuVideoGraphicsOutputDestructor (Private);
+
+FreeModeData:
+ FreePool (Private->ModeData);
+
+UninstallGopDevicePath:
+ gBS->UninstallProtocolInterface (Private->Handle,
+ &gEfiDevicePathProtocolGuid, Private->GopDevicePath);
+
+FreeGopDevicePath:
+ FreePool (Private->GopDevicePath);
+
+RestoreAttributes:
+ Private->PciIo->Attributes (Private->PciIo, EfiPciIoAttributeOperationSet,
+ Private->OriginalPciAttributes, NULL);
+
+ClosePciIo:
+ gBS->CloseProtocol (Controller, &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle, Controller);
+
+FreePrivate:
+ FreePool (Private);
+
+RestoreTpl:
+ gBS->RestoreTPL (OldTpl);
+
+ return Status;
+}
+
+/**
+ Stop this device
+
+ @param This The USB bus driver binding protocol.
+ @param Controller The controller to release.
+ @param NumberOfChildren The number of children of this device that
+ opened the controller BY_CHILD.
+ @param ChildHandleBuffer The array of child handle.
+
+ @retval EFI_SUCCESS The controller or children are stopped.
+ @retval EFI_DEVICE_ERROR Failed to stop the driver.
+
+**/
+EFI_STATUS
+EFIAPI
+QemuVideoControllerDriverStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+{
+ EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
+
+ EFI_STATUS Status;
+ QEMU_VIDEO_PRIVATE_DATA *Private;
+
+ if (NumberOfChildren == 0) {
+ //
+ // Close the PCI I/O Protocol
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ return EFI_SUCCESS;
+ }
+
+ //
+ // free all resources for whose access we need the child handle, because the
+ // child handle is going away
+ //
+ ASSERT (NumberOfChildren == 1);
+ Status = gBS->OpenProtocol (
+ ChildHandleBuffer[0],
+ &gEfiGraphicsOutputProtocolGuid,
+ (VOID **) &GraphicsOutput,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get our private context information
+ //
+ Private = QEMU_VIDEO_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (GraphicsOutput);
+ ASSERT (Private->Handle == ChildHandleBuffer[0]);
+
+ QemuVideoGraphicsOutputDestructor (Private);
+ //
+ // Remove the GOP protocol interface from the system
+ //
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Private->Handle,
+ &gEfiGraphicsOutputProtocolGuid,
+ &Private->GraphicsOutput,
+ NULL
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Restore original PCI attributes
+ //
+ Private->PciIo->Attributes (
+ Private->PciIo,
+ EfiPciIoAttributeOperationSet,
+ Private->OriginalPciAttributes,
+ NULL
+ );
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Private->Handle
+ );
+
+ FreePool (Private->ModeData);
+ gBS->UninstallProtocolInterface (Private->Handle,
+ &gEfiDevicePathProtocolGuid, Private->GopDevicePath);
+ FreePool (Private->GopDevicePath);
+
+ //
+ // Free our instance data
+ //
+ gBS->FreePool (Private);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param Address TODO: add argument description
+ @param Data TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+outb (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN Address,
+ UINT8 Data
+ )
+{
+ Private->PciIo->Io.Write (
+ Private->PciIo,
+ EfiPciIoWidthUint8,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ Address,
+ 1,
+ &Data
+ );
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param Address TODO: add argument description
+ @param Data TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+outw (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN Address,
+ UINT16 Data
+ )
+{
+ Private->PciIo->Io.Write (
+ Private->PciIo,
+ EfiPciIoWidthUint16,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ Address,
+ 1,
+ &Data
+ );
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param Address TODO: add argument description
+
+ TODO: add return values
+
+**/
+UINT8
+inb (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN Address
+ )
+{
+ UINT8 Data;
+
+ Private->PciIo->Io.Read (
+ Private->PciIo,
+ EfiPciIoWidthUint8,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ Address,
+ 1,
+ &Data
+ );
+ return Data;
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param Address TODO: add argument description
+
+ TODO: add return values
+
+**/
+UINT16
+inw (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN Address
+ )
+{
+ UINT16 Data;
+
+ Private->PciIo->Io.Read (
+ Private->PciIo,
+ EfiPciIoWidthUint16,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ Address,
+ 1,
+ &Data
+ );
+ return Data;
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param Index TODO: add argument description
+ @param Red TODO: add argument description
+ @param Green TODO: add argument description
+ @param Blue TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+SetPaletteColor (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN Index,
+ UINT8 Red,
+ UINT8 Green,
+ UINT8 Blue
+ )
+{
+ VgaOutb (Private, PALETTE_INDEX_REGISTER, (UINT8) Index);
+ VgaOutb (Private, PALETTE_DATA_REGISTER, (UINT8) (Red >> 2));
+ VgaOutb (Private, PALETTE_DATA_REGISTER, (UINT8) (Green >> 2));
+ VgaOutb (Private, PALETTE_DATA_REGISTER, (UINT8) (Blue >> 2));
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+SetDefaultPalette (
+ QEMU_VIDEO_PRIVATE_DATA *Private
+ )
+{
+ UINTN Index;
+ UINTN RedIndex;
+ UINTN GreenIndex;
+ UINTN BlueIndex;
+
+ Index = 0;
+ for (RedIndex = 0; RedIndex < 8; RedIndex++) {
+ for (GreenIndex = 0; GreenIndex < 8; GreenIndex++) {
+ for (BlueIndex = 0; BlueIndex < 4; BlueIndex++) {
+ SetPaletteColor (Private, Index, (UINT8) (RedIndex << 5), (UINT8) (GreenIndex << 5), (UINT8) (BlueIndex << 6));
+ Index++;
+ }
+ }
+ }
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+ClearScreen (
+ QEMU_VIDEO_PRIVATE_DATA *Private
+ )
+{
+ UINT32 Color;
+
+ Color = 0;
+ Private->PciIo->Mem.Write (
+ Private->PciIo,
+ EfiPciIoWidthFillUint32,
+ Private->FrameBufferVramBarIndex,
+ 0,
+ 0x400000 >> 2,
+ &Color
+ );
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+DrawLogo (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN ScreenWidth,
+ UINTN ScreenHeight
+ )
+{
+}
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param ModeData TODO: add argument description
+
+ TODO: add return values
+
+**/
+VOID
+InitializeCirrusGraphicsMode (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ QEMU_VIDEO_CIRRUS_MODES *ModeData
+ )
+{
+ UINT8 Byte;
+ UINTN Index;
+
+ outw (Private, SEQ_ADDRESS_REGISTER, 0x1206);
+ outw (Private, SEQ_ADDRESS_REGISTER, 0x0012);
+
+ for (Index = 0; Index < 15; Index++) {
+ outw (Private, SEQ_ADDRESS_REGISTER, ModeData->SeqSettings[Index]);
+ }
+
+ if (Private->Variant == QEMU_VIDEO_CIRRUS_5430) {
+ outb (Private, SEQ_ADDRESS_REGISTER, 0x0f);
+ Byte = (UINT8) ((inb (Private, SEQ_DATA_REGISTER) & 0xc7) ^ 0x30);
+ outb (Private, SEQ_DATA_REGISTER, Byte);
+ }
+
+ outb (Private, MISC_OUTPUT_REGISTER, ModeData->MiscSetting);
+ outw (Private, GRAPH_ADDRESS_REGISTER, 0x0506);
+ outw (Private, SEQ_ADDRESS_REGISTER, 0x0300);
+ outw (Private, CRTC_ADDRESS_REGISTER, 0x2011);
+
+ for (Index = 0; Index < 28; Index++) {
+ outw (Private, CRTC_ADDRESS_REGISTER, (UINT16) ((ModeData->CrtcSettings[Index] << 8) | Index));
+ }
+
+ for (Index = 0; Index < 9; Index++) {
+ outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((GraphicsController[Index] << 8) | Index));
+ }
+
+ inb (Private, INPUT_STATUS_1_REGISTER);
+
+ for (Index = 0; Index < 21; Index++) {
+ outb (Private, ATT_ADDRESS_REGISTER, (UINT8) Index);
+ outb (Private, ATT_ADDRESS_REGISTER, AttributeController[Index]);
+ }
+
+ outb (Private, ATT_ADDRESS_REGISTER, 0x20);
+
+ outw (Private, GRAPH_ADDRESS_REGISTER, 0x0009);
+ outw (Private, GRAPH_ADDRESS_REGISTER, 0x000a);
+ outw (Private, GRAPH_ADDRESS_REGISTER, 0x000b);
+ outb (Private, DAC_PIXEL_MASK_REGISTER, 0xff);
+
+ SetDefaultPalette (Private);
+ ClearScreen (Private);
+}
+
+VOID
+BochsWrite (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINT16 Reg,
+ UINT16 Data
+ )
+{
+ EFI_STATUS Status;
+
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO) {
+ Status = Private->PciIo->Mem.Write (
+ Private->PciIo,
+ EfiPciIoWidthUint16,
+ PCI_BAR_IDX2,
+ 0x500 + (Reg << 1),
+ 1,
+ &Data
+ );
+ ASSERT_EFI_ERROR (Status);
+ } else {
+ outw (Private, VBE_DISPI_IOPORT_INDEX, Reg);
+ outw (Private, VBE_DISPI_IOPORT_DATA, Data);
+ }
+}
+
+UINT16
+BochsRead (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINT16 Reg
+ )
+{
+ EFI_STATUS Status;
+ UINT16 Data;
+
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO) {
+ Status = Private->PciIo->Mem.Read (
+ Private->PciIo,
+ EfiPciIoWidthUint16,
+ PCI_BAR_IDX2,
+ 0x500 + (Reg << 1),
+ 1,
+ &Data
+ );
+ ASSERT_EFI_ERROR (Status);
+ } else {
+ outw (Private, VBE_DISPI_IOPORT_INDEX, Reg);
+ Data = inw (Private, VBE_DISPI_IOPORT_DATA);
+ }
+ return Data;
+}
+
+VOID
+VgaOutb (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINTN Reg,
+ UINT8 Data
+ )
+{
+ EFI_STATUS Status;
+
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO) {
+ Status = Private->PciIo->Mem.Write (
+ Private->PciIo,
+ EfiPciIoWidthUint8,
+ PCI_BAR_IDX2,
+ 0x400 - 0x3c0 + Reg,
+ 1,
+ &Data
+ );
+ ASSERT_EFI_ERROR (Status);
+ } else {
+ outb (Private, Reg, Data);
+ }
+}
+
+VOID
+InitializeBochsGraphicsMode (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ QEMU_VIDEO_BOCHS_MODES *ModeData
+ )
+{
+ DEBUG ((DEBUG_INFO, "InitializeBochsGraphicsMode: %dx%d @ %d\n",
+ ModeData->Width, ModeData->Height, ModeData->ColorDepth));
+
+ /* unblank */
+ VgaOutb (Private, ATT_ADDRESS_REGISTER, 0x20);
+
+ BochsWrite (Private, VBE_DISPI_INDEX_ENABLE, 0);
+ BochsWrite (Private, VBE_DISPI_INDEX_BANK, 0);
+ BochsWrite (Private, VBE_DISPI_INDEX_X_OFFSET, 0);
+ BochsWrite (Private, VBE_DISPI_INDEX_Y_OFFSET, 0);
+
+ BochsWrite (Private, VBE_DISPI_INDEX_BPP, (UINT16) ModeData->ColorDepth);
+ BochsWrite (Private, VBE_DISPI_INDEX_XRES, (UINT16) ModeData->Width);
+ BochsWrite (Private, VBE_DISPI_INDEX_VIRT_WIDTH, (UINT16) ModeData->Width);
+ BochsWrite (Private, VBE_DISPI_INDEX_YRES, (UINT16) ModeData->Height);
+ BochsWrite (Private, VBE_DISPI_INDEX_VIRT_HEIGHT, (UINT16) ModeData->Height);
+
+ BochsWrite (Private, VBE_DISPI_INDEX_ENABLE,
+ VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED);
+
+ SetDefaultPalette (Private);
+ ClearScreen (Private);
+}
+
+EFI_STATUS
+EFIAPI
+InitializeQemuVideo (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ Status = EfiLibInstallDriverBindingComponentName2 (
+ ImageHandle,
+ SystemTable,
+ &gQemuVideoDriverBinding,
+ ImageHandle,
+ &gQemuVideoComponentName,
+ &gQemuVideoComponentName2
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
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