Protocols for the Cirrus Logic 5430 family of PCI video controllers.\r
This driver is only usable in the EFI pre-boot environment.\r
This sample is intended to show how the UGA Draw and Graphics output Protocol\r
- is able to function. \r
+ is able to function.\r
The UGA I/O Protocol is not implemented in this sample.\r
A fully compliant EFI UGA driver requires both\r
the UGA Draw and the UGA I/O Protocol. Please refer to Microsoft's\r
documentation on UGA for details on how to write a UGA driver that is able\r
to function both in the EFI pre-boot environment and from the OS runtime.\r
\r
- Copyright (c) 2006, Intel Corporation \r
- All rights reserved. This program and the accompanying materials \r
- are licensed and made available under the terms and conditions of the BSD License \r
- which accompanies this distribution. The full text of the license may be found at \r
- http://opensource.org/licenses/bsd-license.php \r
+ Copyright (c) 2006, Intel Corporation\r
+ All rights reserved. This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The 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
+ 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
/// Generic Attribute Controller Register Settings\r
///\r
UINT8 AttributeController[21] = {\r
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, \r
- 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, \r
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,\r
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,\r
0x41, 0x00, 0x0F, 0x00, 0x00\r
};\r
\r
//\r
UINT8 Crtc_640_480_256_60[28] = {\r
0x5d, 0x4f, 0x50, 0x82, 0x53, 0x9f, 0x00, 0x3e,\r
- 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \r
+ 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
0xe1, 0x83, 0xdf, 0x50, 0x00, 0xe7, 0x04, 0xe3,\r
0xff, 0x00, 0x00, 0x22\r
};\r
\r
UINT16 Seq_640_480_256_60[15] = {\r
- 0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b, \r
+ 0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b,\r
0x5b0c, 0x450d, 0x7e0e, 0x2b1b, 0x2f1c, 0x301d, 0x331e\r
};\r
\r
// 800 x 600 x 256 color @ 60 Hertz\r
//\r
UINT8 Crtc_800_600_256_60[28] = {\r
- 0x7F, 0x63, 0x64, 0x80, 0x6B, 0x1B, 0x72, 0xF0, \r
- 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \r
+ 0x7F, 0x63, 0x64, 0x80, 0x6B, 0x1B, 0x72, 0xF0,\r
+ 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
0x58, 0x8C, 0x57, 0x64, 0x00, 0x5F, 0x91, 0xE3,\r
0xFF, 0x00, 0x00, 0x22\r
};\r
\r
UINT16 Seq_800_600_256_60[15] = {\r
- 0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b, \r
+ 0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b,\r
0x5b0c, 0x450d, 0x510e, 0x2b1b, 0x2f1c, 0x301d, 0x3a1e\r
};\r
\r
// 1024 x 768 x 256 color @ 60 Hertz\r
//\r
UINT8 Crtc_1024_768_256_60[28] = {\r
- 0xA3, 0x7F, 0x80, 0x86, 0x85, 0x96, 0x24, 0xFD, \r
- 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \r
+ 0xA3, 0x7F, 0x80, 0x86, 0x85, 0x96, 0x24, 0xFD,\r
+ 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
0x02, 0x88, 0xFF, 0x80, 0x00, 0x00, 0x24, 0xE3,\r
0xFF, 0x4A, 0x00, 0x22\r
};\r
\r
UINT16 Seq_1024_768_256_60[15] = {\r
- 0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b, \r
+ 0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b,\r
0x5b0c, 0x450d, 0x760e, 0x2b1b, 0x2f1c, 0x301d, 0x341e\r
};\r
\r
///\r
CIRRUS_LOGIC_5430_VIDEO_MODES CirrusLogic5430VideoModes[] = {\r
{ 640, 480, 8, 60, Crtc_640_480_256_60, Seq_640_480_256_60, 0xe3 },\r
- { 800, 600, 8, 60, Crtc_800_600_256_60, Seq_800_600_256_60, 0xef }, \r
- { 1024, 768, 8, 60, Crtc_1024_768_256_60, Seq_1024_768_256_60, 0xef } \r
+ { 800, 600, 8, 60, Crtc_800_600_256_60, Seq_800_600_256_60, 0xef },\r
+ { 1024, 768, 8, 60, Crtc_1024_768_256_60, Seq_1024_768_256_60, 0xef }\r
};\r
\r
/**\r
goto Error;\r
}\r
\r
+ //\r
+ // Save original PCI attributes\r
+ //\r
+ Status = Private->PciIo->Attributes (\r
+ Private->PciIo,\r
+ EfiPciIoAttributeOperationGet,\r
+ 0,\r
+ &Private->OriginalPciAttributes\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Error;\r
+ }\r
+\r
Status = Private->PciIo->Attributes (\r
Private->PciIo,\r
EfiPciIoAttributeOperationEnable,\r
&Private->GraphicsOutput,\r
NULL\r
);\r
- \r
+\r
} else {\r
//\r
// This driver must support eithor GOP or UGA or both.\r
- // \r
+ //\r
ASSERT (FALSE);\r
Status = EFI_UNSUPPORTED;\r
}\r
}\r
- \r
+\r
\r
Error:\r
if (EFI_ERROR (Status)) {\r
if (Private) {\r
if (Private->PciIo) {\r
+ //\r
+ // Restore original PCI attributes\r
+ //\r
Private->PciIo->Attributes (\r
- Private->PciIo,\r
- EfiPciIoAttributeOperationDisable,\r
- EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY | EFI_PCI_IO_ATTRIBUTE_VGA_IO,\r
- NULL\r
- );\r
+ Private->PciIo,\r
+ EfiPciIoAttributeOperationSet,\r
+ Private->OriginalPciAttributes,\r
+ NULL\r
+ );\r
+\r
+ //\r
+ // Close the PCI I/O Protocol\r
+ //\r
+ gBS->CloseProtocol (\r
+ Private->Handle,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Private->Handle\r
+ );\r
}\r
- }\r
\r
- //\r
- // Close the PCI I/O Protocol\r
- //\r
- gBS->CloseProtocol (\r
- Private->Handle,\r
- &gEfiPciIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Private->Handle\r
- );\r
- if (Private) {\r
gBS->FreePool (Private);\r
}\r
}\r
return Status;\r
}\r
\r
-\r
//\r
- // Shutdown the hardware\r
+ // Restore original PCI attributes\r
//\r
Private->PciIo->Attributes (\r
- Private->PciIo,\r
- EfiPciIoAttributeOperationDisable,\r
- EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY | EFI_PCI_IO_ATTRIBUTE_VGA_IO,\r
- NULL\r
- );\r
+ Private->PciIo,\r
+ EfiPciIoAttributeOperationSet,\r
+ Private->OriginalPciAttributes,\r
+ NULL\r
+ );\r
\r
//\r
// Close the PCI I/O Protocol\r
ASSERT_EFI_ERROR (Status);\r
\r
//\r
- // Install EFI Driver Supported EFI Version Protocol required for \r
+ // Install EFI Driver Supported EFI Version Protocol required for\r
// EFI drivers that are on PCI and other plug in cards.\r
//\r
gCirrusLogic5430DriverSupportedEfiVersion.FirmwareVersion = PcdGet32 (PcdDriverSupportedEfiVersion);\r
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