diff options
| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-11-27 19:11:29 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-11-27 19:11:29 +0000 |
| commit | 54f9b9accbcb6dc7f965342fc75b478464de21a3 (patch) | |
| tree | d62d082081fe0e04607077e4636f6bfa6b49b800 /OvmfPkg/QemuVideoDxe/Driver.c | |
| parent | 212aac55fd13e985cebf88042f40479c01ac2e44 (diff) | |
| download | edk2-platforms-54f9b9accbcb6dc7f965342fc75b478464de21a3.tar.xz | |
QemuVideo: Add support for the bochs dispi interface
Add code to handle qemu-emulated vga cards supporting the bochs dispi
interface (standard vga, qxl vga). This requires qemu 1.3+ which
provides the bochs dispi interface data register on a aligned io
address. See
http://git.qemu.org/?p=qemu.git;a=commitdiff;h=df9ffb726ff13f850b8829be1bc85ed621b903ac
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13968 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/QemuVideoDxe/Driver.c')
| -rw-r--r-- | OvmfPkg/QemuVideoDxe/Driver.c | 82 |
1 files changed, 81 insertions, 1 deletions
diff --git a/OvmfPkg/QemuVideoDxe/Driver.c b/OvmfPkg/QemuVideoDxe/Driver.c index 51929803b5..04f73f3ba1 100644 --- a/OvmfPkg/QemuVideoDxe/Driver.c +++ b/OvmfPkg/QemuVideoDxe/Driver.c @@ -42,6 +42,16 @@ QEMU_VIDEO_CARD gQemuVideoCardList[] = { QEMU_VIDEO_CIRRUS_5446,
L"Cirrus 5446"
},{
+ 0x1234,
+ 0x1111,
+ QEMU_VIDEO_BOCHS,
+ L"QEMU Standard VGA"
+ },{
+ 0x1b36,
+ 0x0100,
+ QEMU_VIDEO_BOCHS,
+ L"QEMU QXL VGA"
+ },{
0 /* end of list */
}
};
@@ -197,7 +207,7 @@ QemuVideoControllerDriverStart ( ACPI_ADR_DEVICE_PATH AcpiDeviceNode;
PCI_TYPE00 Pci;
QEMU_VIDEO_CARD *Card;
-
+
PciAttributesSaved = FALSE;
//
// Allocate Private context data for GOP inteface.
@@ -276,6 +286,19 @@ QemuVideoControllerDriverStart ( }
//
+ // Check if accessing the bochs interface works.
+ //
+ if (Private->Variant == QEMU_VIDEO_BOCHS) {
+ UINT16 BochsId;
+ BochsId = BochsRead(Private, VBE_DISPI_INDEX_ID);
+ if ((BochsId & 0xFFF0) != VBE_DISPI_ID0) {
+ DEBUG ((EFI_D_INFO, "QemuVideo: BochsID mismatch (got 0x%x)\n", BochsId));
+ Status = EFI_DEVICE_ERROR;
+ goto Error;
+ }
+ }
+
+ //
// Get ParentDevicePath
//
Status = gBS->HandleProtocol (
@@ -336,6 +359,9 @@ QemuVideoControllerDriverStart ( case QEMU_VIDEO_CIRRUS_5446:
Status = QemuVideoCirrusModeSetup (Private);
break;
+ case QEMU_VIDEO_BOCHS:
+ Status = QemuVideoBochsModeSetup (Private);
+ break;
default:
ASSERT (FALSE);
Status = EFI_DEVICE_ERROR;
@@ -758,6 +784,60 @@ InitializeCirrusGraphicsMode ( ClearScreen (Private);
}
+VOID
+BochsWrite (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINT16 Reg,
+ UINT16 Data
+ )
+{
+ outw (Private, VBE_DISPI_IOPORT_INDEX, Reg);
+ outw (Private, VBE_DISPI_IOPORT_DATA, Data);
+}
+
+UINT16
+BochsRead (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ UINT16 Reg
+ )
+{
+ UINT16 Data;
+
+ outw (Private, VBE_DISPI_IOPORT_INDEX, Reg);
+ Data = inw (Private, VBE_DISPI_IOPORT_DATA);
+ return Data;
+}
+
+VOID
+InitializeBochsGraphicsMode (
+ QEMU_VIDEO_PRIVATE_DATA *Private,
+ QEMU_VIDEO_BOCHS_MODES *ModeData
+ )
+{
+ DEBUG ((EFI_D_INFO, "InitializeBochsGraphicsMode: %dx%d @ %d\n",
+ ModeData->Width, ModeData->Height, ModeData->ColorDepth));
+
+ /* unblank */
+ outb (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 (
|