2 UGA IO protocol from the EFI 1.10 specification.
4 Abstraction of a very simple graphics device.
6 Copyright (c) 2006 - 2008, Intel Corporation
7 All rights reserved. This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
20 #define EFI_UGA_IO_PROTOCOL_GUID \
21 { 0x61a4d49e, 0x6f68, 0x4f1b, { 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 } }
23 typedef struct _EFI_UGA_IO_PROTOCOL EFI_UGA_IO_PROTOCOL
;
25 typedef UINT32 UGA_STATUS
;
29 UgaDtGraphicsController
,
30 UgaDtOutputController
,
34 UGA_DEVICE_TYPE
, *PUGA_DEVICE_TYPE
;
36 typedef UINT32 UGA_DEVICE_ID
, *PUGA_DEVICE_ID
;
39 UGA_DEVICE_TYPE deviceType
;
40 UGA_DEVICE_ID deviceId
;
41 UINT32 ui32DeviceContextSize
;
42 UINT32 ui32SharedContextSize
;
44 UGA_DEVICE_DATA
, *PUGA_DEVICE_DATA
;
46 typedef struct _UGA_DEVICE
{
47 VOID
*pvDeviceContext
;
48 VOID
*pvSharedContext
;
49 VOID
*pvRunTimeContext
;
50 struct _UGA_DEVICE
*pParentDevice
;
51 VOID
*pvBusIoServices
;
52 VOID
*pvStdIoServices
;
53 UGA_DEVICE_DATA deviceData
;
55 UGA_DEVICE
, *PUGA_DEVICE
;
67 UgaIoGetMemoryConfiguration
,
71 UgaIoDeviceChannelOpen
,
72 UgaIoDeviceChannelClose
,
73 UgaIoDeviceChannelRead
,
74 UgaIoDeviceChannelWrite
,
75 UgaIoGetPersistentDataSize
,
76 UgaIoGetPersistentData
,
77 UgaIoSetPersistentData
,
78 UgaIoGetDevicePropertySize
,
79 UgaIoGetDeviceProperty
,
80 UgaIoBtPrivateInterface
82 UGA_IO_REQUEST_CODE
, *PUGA_IO_REQUEST_CODE
;
85 IN UGA_IO_REQUEST_CODE ioRequestCode
;
87 IN UINT64 ui64InBufferSize
;
88 OUT VOID
*pvOutBuffer
;
89 IN UINT64 ui64OutBufferSize
;
90 OUT UINT64 ui64BytesReturned
;
91 } UGA_IO_REQUEST
, *PUGA_IO_REQUEST
;
95 Dynamically allocate storage for a child UGA_DEVICE .
97 @param[in] This The EFI_UGA_IO_PROTOCOL instance.
98 @param[in] ParentDevice ParentDevice specifies a pointer to the parent device of Device.
99 @param[in] DeviceData A pointer to UGA_DEVICE_DATA returned from a call to DispatchService()
100 with a UGA_DEVICE of Parent and an IoRequest of type UgaIoGetChildDevice.
101 @param[in] RunTimeContext Context to associate with Device.
102 @param[out] Device The Device returns a dynamically allocated child UGA_DEVICE object
103 for ParentDevice. The caller is responsible for deleting Device.
106 @retval EFI_SUCCESS Device was returned.
107 @retval EFI_INVALID_PARAMETER One of the arguments was not valid.
108 @retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
113 (EFIAPI
*EFI_UGA_IO_PROTOCOL_CREATE_DEVICE
)(
114 IN EFI_UGA_IO_PROTOCOL
*This
,
115 IN UGA_DEVICE
*ParentDevice
,
116 IN UGA_DEVICE_DATA
*DeviceData
,
117 IN VOID
*RunTimeContext
,
118 OUT UGA_DEVICE
**Device
123 Delete a dynamically allocated child UGA_DEVICE object that was allocated via CreateDevice() .
125 @param[in] This The EFI_UGA_IO_PROTOCOL instance. Type EFI_UGA_IO_PROTOCOL is
126 defined in Section 10.7.
127 @param[in] Device The Device points to a UGA_DEVICE object that was dynamically
128 allocated via a CreateDevice() call.
131 @retval EFI_SUCCESS Device was returned.
132 @retval EFI_INVALID_PARAMETER The Device was not allocated via CreateDevice().
137 (EFIAPI
*EFI_UGA_IO_PROTOCOL_DELETE_DEVICE
)(
138 IN EFI_UGA_IO_PROTOCOL
* This
,
139 IN UGA_DEVICE
* Device
143 This is the main UGA service dispatch routine for all UGA_IO_REQUEST s.
145 @param pDevice pDevice specifies a pointer to a device object associated with a
146 device enumerated by a pIoRequest->ioRequestCode of type
147 UgaIoGetChildDevice. The root device for the EFI_UGA_IO_PROTOCOL
148 is represented by pDevice being set to NULL.
151 pIoRequest points to a caller allocated buffer that contains data
152 defined by pIoRequest->ioRequestCode. See Related Definitions for
153 a definition of UGA_IO_REQUEST_CODE s and their associated data
160 (EFIAPI
*PUGA_FW_SERVICE_DISPATCH
)(
161 IN PUGA_DEVICE pDevice
,
162 IN OUT PUGA_IO_REQUEST pIoRequest
166 @par Protocol Description:
167 Provides a basic abstraction to send I/O requests to the graphics device and any of its children.
170 Create a UGA_DEVICE object for a child device of a given parent UGA_DEVICE.
173 Delete the UGA_DEVICE returned from CreateDevice().
175 @param DispatchService
176 Dispatches I/O requests to the display device and its associate child devices.
178 struct _EFI_UGA_IO_PROTOCOL
{
179 EFI_UGA_IO_PROTOCOL_CREATE_DEVICE CreateDevice
;
180 EFI_UGA_IO_PROTOCOL_DELETE_DEVICE DeleteDevice
;
181 PUGA_FW_SERVICE_DISPATCH DispatchService
;
184 extern EFI_GUID gEfiUgaIoProtocolGuid
;
187 // Data structure that is stored in the EFI Configuration Table with the
188 // EFI_UGA_IO_PROTOCOL_GUID. The option ROMs listed in this table may have
194 UINT32 SizeOfEntries
;
195 UINT32 NumberOfEntries
;
196 } EFI_DRIVER_OS_HANDOFF_HEADER
;
199 EfiUgaDriverFromPciRom
,
200 EfiUgaDriverFromSystem
,
202 } EFI_DRIVER_HANOFF_ENUM
;
205 EFI_DRIVER_HANOFF_ENUM Type
;
206 EFI_DEVICE_PATH_PROTOCOL
*DevicePath
;
209 } EFI_DRIVER_OS_HANDOFF
;