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