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1/** @file\r
2 Component Name functions implementation for XenPvBlk driver.\r
3\r
4 Copyright (C) 2014, Citrix Ltd.\r
5\r
6 This program and the accompanying materials\r
7 are licensed and made available under the terms and conditions of the BSD License\r
8 which accompanies this distribution. The full text of the license may be found at\r
9 http://opensource.org/licenses/bsd-license.php\r
10\r
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
13\r
14**/\r
15\r
16#include "XenPvBlkDxe.h"\r
17\r
18///\r
19/// Component Name Protocol instance\r
20///\r
21GLOBAL_REMOVE_IF_UNREFERENCED\r
22EFI_COMPONENT_NAME_PROTOCOL gXenPvBlkDxeComponentName = {\r
23 (EFI_COMPONENT_NAME_GET_DRIVER_NAME) XenPvBlkDxeComponentNameGetDriverName,\r
24 (EFI_COMPONENT_NAME_GET_CONTROLLER_NAME)XenPvBlkDxeComponentNameGetControllerName,\r
25 "eng"\r
26};\r
27\r
28///\r
29/// Component Name 2 Protocol instance\r
30///\r
31GLOBAL_REMOVE_IF_UNREFERENCED\r
32EFI_COMPONENT_NAME2_PROTOCOL gXenPvBlkDxeComponentName2 = {\r
33 XenPvBlkDxeComponentNameGetDriverName,\r
34 XenPvBlkDxeComponentNameGetControllerName,\r
35 "en"\r
36};\r
37\r
38///\r
39/// Table of driver names\r
40///\r
41GLOBAL_REMOVE_IF_UNREFERENCED\r
42EFI_UNICODE_STRING_TABLE mXenPvBlkDxeDriverNameTable[] = {\r
43 { "eng;en", (CHAR16 *)L"Xen PV Block Driver" },\r
44 { NULL, NULL }\r
45};\r
46\r
47///\r
48/// Table of controller names\r
49///\r
50GLOBAL_REMOVE_IF_UNREFERENCED\r
51EFI_UNICODE_STRING_TABLE mXenPvBlkDxeControllerNameTable[] = {\r
52 { "eng;en", (CHAR16 *)L"Xen PV Block Device" },\r
53 { NULL, NULL }\r
54};\r
55\r
56/**\r
57 Retrieves a Unicode string that is the user-readable name of the EFI Driver.\r
58\r
59 @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
60 @param Language A pointer to a three-character ISO 639-2 language identifier.\r
61 This is the language of the driver name that that the caller\r
62 is requesting, and it must match one of the languages specified\r
63 in SupportedLanguages. The number of languages supported by a\r
64 driver is up to the driver writer.\r
65 @param DriverName A pointer to the Unicode string to return. This Unicode string\r
66 is the name of the driver specified by This in the language\r
67 specified by Language.\r
68\r
69 @retval EFI_SUCCESS The Unicode string for the Driver specified by This\r
70 and the language specified by Language was returned\r
71 in DriverName.\r
72 @retval EFI_INVALID_PARAMETER Language is NULL.\r
73 @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
74 @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
75 language specified by Language.\r
76\r
77**/\r
78EFI_STATUS\r
79EFIAPI\r
80XenPvBlkDxeComponentNameGetDriverName (\r
81 IN EFI_COMPONENT_NAME2_PROTOCOL *This,\r
82 IN CHAR8 *Language,\r
83 OUT CHAR16 **DriverName\r
84 )\r
85{\r
86 return LookupUnicodeString2 (\r
87 Language,\r
88 This->SupportedLanguages,\r
89 mXenPvBlkDxeDriverNameTable,\r
90 DriverName,\r
91 (BOOLEAN)(This != &gXenPvBlkDxeComponentName2)\r
92 );\r
93}\r
94\r
95/**\r
96 Retrieves a Unicode string that is the user readable name of the controller\r
97 that is being managed by an EFI Driver.\r
98\r
99 @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.\r
100 @param ControllerHandle The handle of a controller that the driver specified by\r
101 This is managing. This handle specifies the controller\r
102 whose name is to be returned.\r
103 @param ChildHandle The handle of the child controller to retrieve the name\r
104 of. This is an optional parameter that may be NULL. It\r
105 will be NULL for device drivers. It will also be NULL\r
106 for a bus drivers that wish to retrieve the name of the\r
107 bus controller. It will not be NULL for a bus driver\r
108 that wishes to retrieve the name of a child controller.\r
109 @param Language A pointer to a three character ISO 639-2 language\r
110 identifier. This is the language of the controller name\r
111 that the caller is requesting, and it must match one\r
112 of the languages specified in SupportedLanguages. The\r
113 number of languages supported by a driver is up to the\r
114 driver writer.\r
115 @param ControllerName A pointer to the Unicode string to return. This Unicode\r
116 string is the name of the controller specified by\r
117 ControllerHandle and ChildHandle in the language specified\r
118 by Language, from the point of view of the driver specified\r
119 by This.\r
120\r
121 @retval EFI_SUCCESS The Unicode string for the user-readable name in the\r
122 language specified by Language for the driver\r
123 specified by This was returned in DriverName.\r
124 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
125 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.\r
126 @retval EFI_INVALID_PARAMETER Language is NULL.\r
127 @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
128 @retval EFI_UNSUPPORTED The driver specified by This is not currently managing\r
129 the controller specified by ControllerHandle and\r
130 ChildHandle.\r
131 @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
132 language specified by Language.\r
133\r
134**/\r
135EFI_STATUS\r
136EFIAPI\r
137XenPvBlkDxeComponentNameGetControllerName (\r
138 IN EFI_COMPONENT_NAME2_PROTOCOL *This,\r
139 IN EFI_HANDLE ControllerHandle,\r
140 IN EFI_HANDLE ChildHandle OPTIONAL,\r
141 IN CHAR8 *Language,\r
142 OUT CHAR16 **ControllerName\r
143 )\r
144{\r
145 EFI_STATUS Status;\r
146\r
147 //\r
148 // ChildHandle must be NULL for a Device Driver\r
149 //\r
150 if (ChildHandle != NULL) {\r
151 return EFI_UNSUPPORTED;\r
152 }\r
153\r
154 //\r
155 // Make sure this driver is currently managing ControllerHandle\r
156 //\r
157 Status = EfiTestManagedDevice (\r
158 ControllerHandle,\r
159 gXenPvBlkDxeDriverBinding.DriverBindingHandle,\r
160 &gXenBusProtocolGuid\r
161 );\r
162 if (EFI_ERROR (Status)) {\r
163 return Status;\r
164 }\r
165\r
166 //\r
167 // Lookup name of controller specified by ControllerHandle\r
168 //\r
169 return LookupUnicodeString2 (\r
170 Language,\r
171 This->SupportedLanguages,\r
172 mXenPvBlkDxeControllerNameTable,\r
173 ControllerName,\r
174 (BOOLEAN)(This != &gXenPvBlkDxeComponentName2)\r
175 );\r
176}\r