1 /** @file
2
3 UEFI Component Name(2) protocol implementation for SD media device driver.
4
5 Copyright (c) 2013-2015 Intel Corporation.
6
7 This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
11
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14
15 **/
16
17 #include "SDMediaDevice.h"
18
19
20 //
21 // EFI Component Name Protocol
22 //
23
24 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gSDMediaDeviceName = {
25 SDMediaDeviceGetDriverName,
26 SDMediaDeviceGetControllerName,
27 "eng"
28 };
29
30 //
31 // EFI Component Name 2 Protocol
32 //
33 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gSDMediaDeviceName2 = {
34 (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) SDMediaDeviceGetDriverName,
35 (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) SDMediaDeviceGetControllerName,
36 "en"
37 };
38
39
40 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mSDMediaDeviceDriverNameTable[] = {
41 { "eng;en", L"UEFI MMC/SD Media Device Driver" },
42 { NULL, NULL }
43 };
44
45
46 //
47 // EFI Component Name Functions
48 //
49
50 /**
51 Retrieves a Unicode string that is the user readable name of the driver.
52
53 This function retrieves the user readable name of a driver in the form of a
54 Unicode string. If the driver specified by This has a user readable name in
55 the language specified by Language, then a pointer to the driver name is
56 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
57 by This does not support the language specified by Language,
58 then EFI_UNSUPPORTED is returned.
59
60 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
61 EFI_COMPONENT_NAME_PROTOCOL instance.
62
63 @param Language[in] A pointer to a Null-terminated ASCII string
64 array indicating the language. This is the
65 language of the driver name that the caller is
66 requesting, and it must match one of the
67 languages specified in SupportedLanguages. The
68 number of languages supported by a driver is up
69 to the driver writer. Language is specified
70 in RFC 3066 or ISO 639-2 language code format.
71
72 @param DriverName[out] A pointer to the Unicode string to return.
73 This Unicode string is the name of the
74 driver specified by This in the language
75 specified by Language.
76
77 @retval EFI_SUCCESS The Unicode string for the Driver specified by
78 This and the language specified by Language was
79 returned in DriverName.
80
81 @retval EFI_INVALID_PARAMETER Language is NULL.
82
83 @retval EFI_INVALID_PARAMETER DriverName is NULL.
84
85 @retval EFI_UNSUPPORTED The driver specified by This does not support
86 the language specified by Language.
87
88 **/
89 EFI_STATUS
90 EFIAPI
SDMediaDeviceGetDriverName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN CHAR8 * Language,OUT CHAR16 ** DriverName)91 SDMediaDeviceGetDriverName (
92 IN EFI_COMPONENT_NAME_PROTOCOL *This,
93 IN CHAR8 *Language,
94 OUT CHAR16 **DriverName
95 )
96 {
97 return LookupUnicodeString2 (
98 Language,
99 This->SupportedLanguages,
100 mSDMediaDeviceDriverNameTable,
101 DriverName,
102 (BOOLEAN)(This == &gSDMediaDeviceName)
103 );
104 }
105
106 /**
107 Retrieves a Unicode string that is the user readable name of the controller
108 that is being managed by a driver.
109
110 This function retrieves the user readable name of the controller specified by
111 ControllerHandle and ChildHandle in the form of a Unicode string. If the
112 driver specified by This has a user readable name in the language specified by
113 Language, then a pointer to the controller name is returned in ControllerName,
114 and EFI_SUCCESS is returned. If the driver specified by This is not currently
115 managing the controller specified by ControllerHandle and ChildHandle,
116 then EFI_UNSUPPORTED is returned. If the driver specified by This does not
117 support the language specified by Language, then EFI_UNSUPPORTED is returned.
118
119 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
120 EFI_COMPONENT_NAME_PROTOCOL instance.
121
122 @param ControllerHandle[in] The handle of a controller that the driver
123 specified by This is managing. This handle
124 specifies the controller whose name is to be
125 returned.
126
127 @param ChildHandle[in] The handle of the child controller to retrieve
128 the name of. This is an optional parameter that
129 may be NULL. It will be NULL for device
130 drivers. It will also be NULL for a bus drivers
131 that wish to retrieve the name of the bus
132 controller. It will not be NULL for a bus
133 driver that wishes to retrieve the name of a
134 child controller.
135
136 @param Language[in] A pointer to a Null-terminated ASCII string
137 array indicating the language. This is the
138 language of the driver name that the caller is
139 requesting, and it must match one of the
140 languages specified in SupportedLanguages. The
141 number of languages supported by a driver is up
142 to the driver writer. Language is specified in
143 RFC 3066 or ISO 639-2 language code format.
144
145 @param ControllerName[out] A pointer to the Unicode string to return.
146 This Unicode string is the name of the
147 controller specified by ControllerHandle and
148 ChildHandle in the language specified by
149 Language from the point of view of the driver
150 specified by This.
151
152 @retval EFI_SUCCESS The Unicode string for the user readable name in
153 the language specified by Language for the
154 driver specified by This was returned in
155 DriverName.
156
157 @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
158
159 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
160 EFI_HANDLE.
161
162 @retval EFI_INVALID_PARAMETER Language is NULL.
163
164 @retval EFI_INVALID_PARAMETER ControllerName is NULL.
165
166 @retval EFI_UNSUPPORTED The driver specified by This is not currently
167 managing the controller specified by
168 ControllerHandle and ChildHandle.
169
170 @retval EFI_UNSUPPORTED The driver specified by This does not support
171 the language specified by Language.
172
173 **/
174 EFI_STATUS
175 EFIAPI
SDMediaDeviceGetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN EFI_HANDLE ControllerHandle,IN EFI_HANDLE ChildHandle OPTIONAL,IN CHAR8 * Language,OUT CHAR16 ** ControllerName)176 SDMediaDeviceGetControllerName (
177 IN EFI_COMPONENT_NAME_PROTOCOL *This,
178 IN EFI_HANDLE ControllerHandle,
179 IN EFI_HANDLE ChildHandle OPTIONAL,
180 IN CHAR8 *Language,
181 OUT CHAR16 **ControllerName
182 )
183 {
184 EFI_STATUS Status;
185 EFI_BLOCK_IO_PROTOCOL *BlockIo;
186 CARD_DATA *CardData;
187
188 //
189 // This is a device driver, so ChildHandle must be NULL.
190 //
191 if (ChildHandle != NULL) {
192 return EFI_UNSUPPORTED;
193 }
194
195 //
196 // Get the device context
197 //
198 Status = gBS->OpenProtocol (
199 ControllerHandle,
200 &gEfiBlockIoProtocolGuid,
201 (VOID **) &BlockIo,
202 gSDMediaDeviceDriverBinding.DriverBindingHandle,
203 ControllerHandle,
204 EFI_OPEN_PROTOCOL_GET_PROTOCOL
205 );
206
207 if (EFI_ERROR (Status)) {
208 return Status;
209 }
210
211 CardData = CARD_DATA_FROM_THIS (BlockIo);
212
213 return LookupUnicodeString2 (
214 Language,
215 This->SupportedLanguages,
216 CardData->ControllerNameTable,
217 ControllerName,
218 (BOOLEAN)(This == &gSDMediaDeviceName)
219 );
220
221 }
222