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Fix the wrong checking for UnixSerialIo
[mirror_edk2.git] / EdkNt32Pkg / Dxe / WinNtThunk / Bus / SerialIo / ComponentName.c
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1/*++\r
2\r
3Copyright (c) 2006, Intel Corporation \r
4All rights reserved. This program and the accompanying materials \r
5are licensed and made available under the terms and conditions of the BSD License \r
6which accompanies this distribution. The full text of the license may be found at \r
7http://opensource.org/licenses/bsd-license.php \r
8 \r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
11\r
12Module Name:\r
13\r
14 ComponentName.c\r
15\r
16Abstract:\r
17\r
18--*/\r
19\r
20#include "WinNtSerialIo.h"\r
21\r
22//\r
23// EFI Component Name Functions\r
24//\r
25EFI_STATUS\r
26EFIAPI\r
27WinNtSerialIoComponentNameGetDriverName (\r
28 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
29 IN CHAR8 *Language,\r
30 OUT CHAR16 **DriverName\r
31 );\r
32\r
33EFI_STATUS\r
34EFIAPI\r
35WinNtSerialIoComponentNameGetControllerName (\r
36 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
37 IN EFI_HANDLE ControllerHandle,\r
38 IN EFI_HANDLE ChildHandle OPTIONAL,\r
39 IN CHAR8 *Language,\r
40 OUT CHAR16 **ControllerName\r
41 );\r
42\r
43//\r
44// EFI Component Name Protocol\r
45//\r
46EFI_COMPONENT_NAME_PROTOCOL gWinNtSerialIoComponentName = {\r
47 WinNtSerialIoComponentNameGetDriverName,\r
48 WinNtSerialIoComponentNameGetControllerName,\r
49 "eng"\r
50};\r
51\r
52static EFI_UNICODE_STRING_TABLE mWinNtSerialIoDriverNameTable[] = {\r
53 { "eng", L"Windows Serial I/O Driver" },\r
54 { NULL , NULL }\r
55};\r
56\r
57EFI_STATUS\r
58EFIAPI\r
59WinNtSerialIoComponentNameGetDriverName (\r
60 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
61 IN CHAR8 *Language,\r
62 OUT CHAR16 **DriverName\r
63 )\r
64/*++\r
65\r
66 Routine Description:\r
67 Retrieves a Unicode string that is the user readable name of the EFI Driver.\r
68\r
69 Arguments:\r
70 This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
71 Language - A pointer to a three character ISO 639-2 language identifier.\r
72 This is the language of the driver name that that the caller \r
73 is requesting, and it must match one of the languages specified\r
74 in SupportedLanguages. The number of languages supported by a \r
75 driver is up to the driver writer.\r
76 DriverName - A pointer to the Unicode string to return. This Unicode string\r
77 is the name of the driver specified by This in the language \r
78 specified by Language.\r
79\r
80 Returns:\r
81 EFI_SUCCESS - The Unicode string for the Driver specified by This\r
82 and the language specified by Language was returned \r
83 in DriverName.\r
84 EFI_INVALID_PARAMETER - Language is NULL.\r
85 EFI_INVALID_PARAMETER - DriverName is NULL.\r
86 EFI_UNSUPPORTED - The driver specified by This does not support the \r
87 language specified by Language.\r
88\r
89--*/\r
90{\r
91 return LookupUnicodeString (\r
92 Language,\r
93 gWinNtSerialIoComponentName.SupportedLanguages,\r
94 mWinNtSerialIoDriverNameTable,\r
95 DriverName\r
96 );\r
97}\r
98\r
99EFI_STATUS\r
100EFIAPI\r
101WinNtSerialIoComponentNameGetControllerName (\r
102 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
103 IN EFI_HANDLE ControllerHandle,\r
104 IN EFI_HANDLE ChildHandle OPTIONAL,\r
105 IN CHAR8 *Language,\r
106 OUT CHAR16 **ControllerName\r
107 )\r
108/*++\r
109\r
110 Routine Description:\r
111 Retrieves a Unicode string that is the user readable name of the controller\r
112 that is being managed by an EFI Driver.\r
113\r
114 Arguments:\r
115 This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
116 ControllerHandle - The handle of a controller that the driver specified by \r
117 This is managing. This handle specifies the controller \r
118 whose name is to be returned.\r
119 ChildHandle - The handle of the child controller to retrieve the name \r
120 of. This is an optional parameter that may be NULL. It \r
121 will be NULL for device drivers. It will also be NULL \r
122 for a bus drivers that wish to retrieve the name of the \r
123 bus controller. It will not be NULL for a bus driver \r
124 that wishes to retrieve the name of a child controller.\r
125 Language - A pointer to a three character ISO 639-2 language \r
126 identifier. This is the language of the controller name \r
127 that that the caller is requesting, and it must match one\r
128 of the languages specified in SupportedLanguages. The \r
129 number of languages supported by a driver is up to the \r
130 driver writer.\r
131 ControllerName - A pointer to the Unicode string to return. This Unicode\r
132 string is the name of the controller specified by \r
133 ControllerHandle and ChildHandle in the language specified\r
134 by Language from the point of view of the driver specified\r
135 by This. \r
136\r
137 Returns:\r
138 EFI_SUCCESS - The Unicode string for the user readable name in the \r
139 language specified by Language for the driver \r
140 specified by This was returned in DriverName.\r
141 EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.\r
142 EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.\r
143 EFI_INVALID_PARAMETER - Language is NULL.\r
144 EFI_INVALID_PARAMETER - ControllerName is NULL.\r
145 EFI_UNSUPPORTED - The driver specified by This is not currently managing \r
146 the controller specified by ControllerHandle and \r
147 ChildHandle.\r
148 EFI_UNSUPPORTED - The driver specified by This does not support the \r
149 language specified by Language.\r
150\r
151--*/\r
152{\r
153 EFI_STATUS Status;\r
154 EFI_SERIAL_IO_PROTOCOL *SerialIo;\r
155 WIN_NT_SERIAL_IO_PRIVATE_DATA *Private;\r
156\r
157 //\r
158 // Make sure this driver is currently managing ControllHandle\r
159 //\r
160 Status = EfiTestManagedDevice (\r
161 ControllerHandle,\r
162 gWinNtSerialIoDriverBinding.DriverBindingHandle,\r
163 &gEfiWinNtIoProtocolGuid\r
164 );\r
165 if (EFI_ERROR (Status)) {\r
166 return Status;\r
167 }\r
168\r
169 //\r
170 // This is a bus driver, so ChildHandle must not be NULL.\r
171 //\r
172 if (ChildHandle == NULL) {\r
173 return EFI_UNSUPPORTED;\r
174 }\r
175\r
176 Status = EfiTestChildHandle (\r
177 ControllerHandle,\r
178 ChildHandle,\r
179 &gEfiWinNtIoProtocolGuid\r
180 );\r
181 if (EFI_ERROR (Status)) {\r
182 return Status;\r
183 }\r
184\r
185 //\r
186 // Get our context back\r
187 //\r
188 Status = gBS->OpenProtocol (\r
189 ChildHandle,\r
190 &gEfiSerialIoProtocolGuid,\r
191 &SerialIo,\r
192 gWinNtSerialIoDriverBinding.DriverBindingHandle,\r
193 ChildHandle,\r
194 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
195 );\r
196 if (EFI_ERROR (Status)) {\r
197 return EFI_UNSUPPORTED;\r
198 }\r
199\r
200 Private = WIN_NT_SERIAL_IO_PRIVATE_DATA_FROM_THIS (SerialIo);\r
201\r
202 return LookupUnicodeString (\r
203 Language,\r
204 gWinNtSerialIoComponentName.SupportedLanguages,\r
205 Private->ControllerNameTable,\r
206 ControllerName\r
207 );\r
208}\r
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