1 /** @file
2
3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4 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 **/
10
11 #include "EmuBusDriverDxe.h"
12
13 //
14 // EFI Component Name Functions
15 //
16 EFI_STATUS
17 EFIAPI
18 EmuBusDriverComponentNameGetDriverName (
19 IN EFI_COMPONENT_NAME_PROTOCOL *This,
20 IN CHAR8 *Language,
21 OUT CHAR16 **DriverName
22 );
23
24 EFI_STATUS
25 EFIAPI
26 EmuBusDriverComponentNameGetControllerName (
27 IN EFI_COMPONENT_NAME_PROTOCOL *This,
28 IN EFI_HANDLE ControllerHandle,
29 IN EFI_HANDLE ChildHandle OPTIONAL,
30 IN CHAR8 *Language,
31 OUT CHAR16 **ControllerName
32 );
33
34 //
35 // EFI Component Name Protocol
36 //
37 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gEmuBusDriverComponentName = {
38 EmuBusDriverComponentNameGetDriverName,
39 EmuBusDriverComponentNameGetControllerName,
40 "eng"
41 };
42
43 //
44 // EFI Component Name 2 Protocol
45 //
46 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gEmuBusDriverComponentName2 = {
47 (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) EmuBusDriverComponentNameGetDriverName,
48 (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) EmuBusDriverComponentNameGetControllerName,
49 "en"
50 };
51
52 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mEmuBusDriverNameTable[] = {
53 { "eng", L"Emu Bus Driver" },
54 { NULL , NULL }
55 };
56
57 /**
58 Retrieves a Unicode string that is the user readable name of the driver.
59
60 This function retrieves the user readable name of a driver in the form of a
61 Unicode string. If the driver specified by This has a user readable name in
62 the language specified by Language, then a pointer to the driver name is
63 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
64 by This does not support the language specified by Language,
65 then EFI_UNSUPPORTED is returned.
66
67 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
68 EFI_COMPONENT_NAME_PROTOCOL instance.
69
70 @param Language[in] A pointer to a Null-terminated ASCII string
71 array indicating the language. This is the
72 language of the driver name that the caller is
73 requesting, and it must match one of the
74 languages specified in SupportedLanguages. The
75 number of languages supported by a driver is up
76 to the driver writer. Language is specified
77 in RFC 4646 or ISO 639-2 language code format.
78
79 @param DriverName[out] A pointer to the Unicode string to return.
80 This Unicode string is the name of the
81 driver specified by This in the language
82 specified by Language.
83
84 @retval EFI_SUCCESS The Unicode string for the Driver specified by
85 This and the language specified by Language was
86 returned in DriverName.
87
88 @retval EFI_INVALID_PARAMETER Language is NULL.
89
90 @retval EFI_INVALID_PARAMETER DriverName is NULL.
91
92 @retval EFI_UNSUPPORTED The driver specified by This does not support
93 the language specified by Language.
94
95 **/
96 EFI_STATUS
97 EFIAPI
EmuBusDriverComponentNameGetDriverName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN CHAR8 * Language,OUT CHAR16 ** DriverName)98 EmuBusDriverComponentNameGetDriverName (
99 IN EFI_COMPONENT_NAME_PROTOCOL *This,
100 IN CHAR8 *Language,
101 OUT CHAR16 **DriverName
102 )
103 {
104 return LookupUnicodeString2 (
105 Language,
106 This->SupportedLanguages,
107 mEmuBusDriverNameTable,
108 DriverName,
109 (BOOLEAN)(This == &gEmuBusDriverComponentName)
110 );
111 }
112
113 /**
114 Retrieves a Unicode string that is the user readable name of the controller
115 that is being managed by a driver.
116
117 This function retrieves the user readable name of the controller specified by
118 ControllerHandle and ChildHandle in the form of a Unicode string. If the
119 driver specified by This has a user readable name in the language specified by
120 Language, then a pointer to the controller name is returned in ControllerName,
121 and EFI_SUCCESS is returned. If the driver specified by This is not currently
122 managing the controller specified by ControllerHandle and ChildHandle,
123 then EFI_UNSUPPORTED is returned. If the driver specified by This does not
124 support the language specified by Language, then EFI_UNSUPPORTED is returned.
125
126 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
127 EFI_COMPONENT_NAME_PROTOCOL instance.
128
129 @param ControllerHandle[in] The handle of a controller that the driver
130 specified by This is managing. This handle
131 specifies the controller whose name is to be
132 returned.
133
134 @param ChildHandle[in] The handle of the child controller to retrieve
135 the name of. This is an optional parameter that
136 may be NULL. It will be NULL for device
137 drivers. It will also be NULL for a bus drivers
138 that wish to retrieve the name of the bus
139 controller. It will not be NULL for a bus
140 driver that wishes to retrieve the name of a
141 child controller.
142
143 @param Language[in] A pointer to a Null-terminated ASCII string
144 array indicating the language. This is the
145 language of the driver name that the caller is
146 requesting, and it must match one of the
147 languages specified in SupportedLanguages. The
148 number of languages supported by a driver is up
149 to the driver writer. Language is specified in
150 RFC 4646 or ISO 639-2 language code format.
151
152 @param ControllerName[out] A pointer to the Unicode string to return.
153 This Unicode string is the name of the
154 controller specified by ControllerHandle and
155 ChildHandle in the language specified by
156 Language from the point of view of the driver
157 specified by This.
158
159 @retval EFI_SUCCESS The Unicode string for the user readable name in
160 the language specified by Language for the
161 driver specified by This was returned in
162 DriverName.
163
164 @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
165
166 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
167 EFI_HANDLE.
168
169 @retval EFI_INVALID_PARAMETER Language is NULL.
170
171 @retval EFI_INVALID_PARAMETER ControllerName is NULL.
172
173 @retval EFI_UNSUPPORTED The driver specified by This is not currently
174 managing the controller specified by
175 ControllerHandle and ChildHandle.
176
177 @retval EFI_UNSUPPORTED The driver specified by This does not support
178 the language specified by Language.
179
180 **/
181 EFI_STATUS
182 EFIAPI
EmuBusDriverComponentNameGetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN EFI_HANDLE ControllerHandle,IN EFI_HANDLE ChildHandle OPTIONAL,IN CHAR8 * Language,OUT CHAR16 ** ControllerName)183 EmuBusDriverComponentNameGetControllerName (
184 IN EFI_COMPONENT_NAME_PROTOCOL *This,
185 IN EFI_HANDLE ControllerHandle,
186 IN EFI_HANDLE ChildHandle OPTIONAL,
187 IN CHAR8 *Language,
188 OUT CHAR16 **ControllerName
189 )
190 {
191 EFI_STATUS Status;
192 EMU_IO_THUNK_PROTOCOL *EmuIo;
193 EMU_IO_DEVICE *Private;
194
195 //
196 // Make sure this driver is currently managing ControllHandle
197 //
198 Status = EfiTestManagedDevice (
199 ControllerHandle,
200 gEmuBusDriverBinding.DriverBindingHandle,
201 &gEmuThunkProtocolGuid
202 );
203 if (EFI_ERROR (Status)) {
204 return Status;
205 }
206
207 //
208 // This is a bus driver, so ChildHandle can not be NULL.
209 //
210 if (ChildHandle == NULL) {
211 return EFI_UNSUPPORTED;
212 }
213
214 Status = EfiTestChildHandle (
215 ControllerHandle,
216 ChildHandle,
217 &gEmuThunkProtocolGuid
218 );
219 if (EFI_ERROR (Status)) {
220 return Status;
221 }
222
223 //
224 // Get our context back
225 //
226 Status = gBS->OpenProtocol (
227 ChildHandle,
228 &gEmuIoThunkProtocolGuid,
229 (VOID**)&EmuIo,
230 gEmuBusDriverBinding.DriverBindingHandle,
231 ChildHandle,
232 EFI_OPEN_PROTOCOL_GET_PROTOCOL
233 );
234 if (EFI_ERROR (Status)) {
235 return EFI_UNSUPPORTED;
236 }
237
238 Private = EMU_IO_DEVICE_FROM_THIS (EmuIo);
239
240 return LookupUnicodeString2 (
241 Language,
242 This->SupportedLanguages,
243 Private->ControllerNameTable,
244 ControllerName,
245 (BOOLEAN)(This == &gEmuBusDriverComponentName)
246 );
247 }
248