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878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | MiscOnboardDeviceFunction.c\r | |
15 | \r | |
16 | Abstract: \r | |
17 | \r | |
18 | Onboard device information boot time changes.\r | |
19 | Misc. subclass type 8.\r | |
20 | SMBIOS type 10.\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | #include "MiscSubclassDriver.h"\r | |
25 | #include "winntio/winntio.h"\r | |
26 | #include "winntthunk/winntthunk.h"\r | |
27 | \r | |
28 | #pragma pack(1)\r | |
29 | \r | |
30 | typedef struct _VENDOR_DEVICE {\r | |
31 | EFI_DEVICE_PATH_PROTOCOL Platform;\r | |
32 | EFI_GUID PlatformGuid;\r | |
33 | EFI_DEVICE_PATH_PROTOCOL Device;\r | |
34 | EFI_GUID DeviceGuid;\r | |
35 | UINT8 DeviceData[4];\r | |
36 | EFI_DEVICE_PATH_PROTOCOL End;\r | |
37 | \r | |
38 | } VENDOR_DEVICE;\r | |
39 | #pragma pack()\r | |
40 | \r | |
41 | MISC_SUBCLASS_TABLE_FUNCTION (\r | |
42 | MiscOnboardDeviceVideo\r | |
43 | )\r | |
44 | /*++\r | |
45 | Description:\r | |
46 | \r | |
47 | This function makes boot time changes to the contents of the\r | |
48 | MiscOnboardDevice structure.\r | |
49 | \r | |
50 | Parameters:\r | |
51 | \r | |
52 | RecordType\r | |
53 | Type of record to be processed from the Data Table.\r | |
54 | mMiscSubclassDataTable[].RecordType\r | |
55 | \r | |
56 | RecordLen\r | |
57 | Size of static RecordData from the Data Table.\r | |
58 | mMiscSubclassDataTable[].RecordLen\r | |
59 | \r | |
60 | RecordData\r | |
61 | Pointer to copy of RecordData from the Data Table. Changes made\r | |
62 | to this copy will be written to the Data Hub but will not alter\r | |
63 | the contents of the static Data Table.\r | |
64 | \r | |
65 | LogRecordData\r | |
66 | Set *LogRecordData to TRUE to log RecordData to Data Hub.\r | |
67 | Set *LogRecordData to FALSE when there is no more data to log.\r | |
68 | \r | |
69 | Returns:\r | |
70 | \r | |
71 | EFI_SUCCESS\r | |
72 | All parameters were valid and *RecordData and *LogRecordData have\r | |
73 | been set.\r | |
74 | \r | |
75 | EFI_UNSUPPORTED\r | |
76 | Unexpected RecordType value.\r | |
77 | \r | |
78 | EFI_INVALID_PARAMETER\r | |
79 | One of the following parameter conditions was true:\r | |
80 | RecordLen was zero.\r | |
81 | RecordData was NULL.\r | |
82 | LogRecordData was NULL.\r | |
83 | --*/\r | |
84 | {\r | |
85 | STATIC VENDOR_DEVICE mVideoDevicePath = {\r | |
86 | {\r | |
87 | HARDWARE_DEVICE_PATH,\r | |
88 | HW_VENDOR_DP,\r | |
89 | 0x14\r | |
90 | },\r | |
91 | EFI_WIN_NT_THUNK_PROTOCOL_GUID,\r | |
92 | {\r | |
93 | HARDWARE_DEVICE_PATH,\r | |
94 | HW_VENDOR_DP,\r | |
95 | 0x18\r | |
96 | },\r | |
97 | EFI_WIN_NT_UGA_GUID,\r | |
98 | 0,\r | |
99 | 0,\r | |
100 | 0,\r | |
101 | 0,\r | |
102 | END\r | |
103 | };\r | |
104 | \r | |
105 | STATIC BOOLEAN Done = FALSE;\r | |
106 | \r | |
107 | //\r | |
108 | // First check for invalid parameters.\r | |
109 | //\r | |
110 | if (RecordLen == 0 || RecordData == NULL || LogRecordData == NULL) {\r | |
111 | return EFI_INVALID_PARAMETER;\r | |
112 | }\r | |
113 | //\r | |
114 | // Then check for unsupported RecordType.\r | |
115 | //\r | |
116 | if (RecordType != EFI_MISC_ONBOARD_DEVICE_DATA_RECORD_NUMBER) {\r | |
117 | return EFI_UNSUPPORTED;\r | |
118 | }\r | |
119 | //\r | |
120 | // Is this the first time through this function?\r | |
121 | //\r | |
122 | if (!Done) {\r | |
123 | //\r | |
124 | // Yes, this is the first time. Inspect/Change the contents of the\r | |
125 | // RecordData structure.\r | |
126 | //\r | |
127 | //\r | |
128 | // Any time changes?\r | |
129 | //\r | |
130 | // %%TBD\r | |
131 | //\r | |
132 | // Set Done flag to TRUE for next pass through this function.\r | |
133 | // Set *LogRecordData to TRUE so data will get logged to Data Hub.\r | |
134 | //\r | |
135 | switch (((EFI_MISC_ONBOARD_DEVICE_DATA *) RecordData)->OnBoardDeviceDescription) {\r | |
136 | case STR_MISC_ONBOARD_DEVICE_VIDEO_DESCRIPTION:\r | |
137 | {\r | |
138 | CopyMem (\r | |
139 | &((EFI_MISC_ONBOARD_DEVICE_DATA *) RecordData)->OnBoardDevicePath,\r | |
140 | &mVideoDevicePath,\r | |
141 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) &mVideoDevicePath)\r | |
142 | );\r | |
143 | *RecordLen = *RecordLen - sizeof (EFI_DEVICE_PATH_PROTOCOL) + GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) &mVideoDevicePath);\r | |
144 | }\r | |
145 | break;\r | |
146 | }\r | |
147 | \r | |
148 | Done = TRUE;\r | |
149 | *LogRecordData = TRUE;\r | |
150 | } else {\r | |
151 | //\r | |
152 | // No, this is the second time. Reset the state of the Done flag\r | |
153 | // to FALSE and tell the data logger that there is no more data\r | |
154 | // to be logged for this record type. If any memory allocations\r | |
155 | // were made by earlier passes, they must be released now.\r | |
156 | //\r | |
157 | Done = FALSE;\r | |
158 | *LogRecordData = FALSE;\r | |
159 | }\r | |
160 | \r | |
161 | return EFI_SUCCESS;\r | |
162 | }\r | |
163 | \r | |
164 | /* eof - MiscOnboardDeviceFunction.c */\r |