1/** @file
2  UEFI Component Name(2) protocol implementation for Designware SD/MMC host
3  controller driver.
4
5  Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
6  Copyright (c) 2017, Linaro Ltd. All rights reserved.<BR>
7
8  This program and the accompanying materials
9  are licensed and made available under the terms and conditions of the BSD License
10  which accompanies this distribution.  The full text of the license may be found at
11  http://opensource.org/licenses/bsd-license.php
12
13  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
14  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15
16**/
17
18#include "DwMmcHcDxe.h"
19
20//
21// EFI Component Name Protocol
22//
23GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gDwMmcHcComponentName = {
24  DwMmcHcComponentNameGetDriverName,
25  DwMmcHcComponentNameGetControllerName,
26  "eng"
27};
28
29//
30// EFI Component Name 2 Protocol
31//
32GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gDwMmcHcComponentName2 = {
33  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)     DwMmcHcComponentNameGetDriverName,
34  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) DwMmcHcComponentNameGetControllerName,
35  "en"
36};
37
38GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mDwMmcHcDriverNameTable[] = {
39  { "eng;en", L"Designware Sd/Mmc Host Controller Driver" },
40  { NULL , NULL }
41};
42
43GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mDwMmcHcControllerNameTable[] = {
44  { "eng;en", L"Designware Sd/Mmc Host Controller" },
45  { NULL , NULL }
46};
47
48/**
49  Retrieves a Unicode string that is the user readable name of the driver.
50
51  This function retrieves the user readable name of a driver in the form of a
52  Unicode string. If the driver specified by This has a user readable name in
53  the language specified by Language, then a pointer to the driver name is
54  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
55  by This does not support the language specified by Language,
56  then EFI_UNSUPPORTED is returned.
57
58  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
59                                EFI_COMPONENT_NAME_PROTOCOL instance.
60
61  @param  Language[in]          A pointer to a Null-terminated ASCII string
62                                array indicating the language. This is the
63                                language of the driver name that the caller is
64                                requesting, and it must match one of the
65                                languages specified in SupportedLanguages. The
66                                number of languages supported by a driver is up
67                                to the driver writer. Language is specified
68                                in RFC 4646 or ISO 639-2 language code format.
69
70  @param  DriverName[out]       A pointer to the Unicode string to return.
71                                This Unicode string is the name of the
72                                driver specified by This in the language
73                                specified by Language.
74
75  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
76                                This and the language specified by Language was
77                                returned in DriverName.
78
79  @retval EFI_INVALID_PARAMETER Language is NULL.
80
81  @retval EFI_INVALID_PARAMETER DriverName is NULL.
82
83  @retval EFI_UNSUPPORTED       The driver specified by This does not support
84                                the language specified by Language.
85
86**/
87EFI_STATUS
88EFIAPI
89DwMmcHcComponentNameGetDriverName (
90  IN  EFI_COMPONENT_NAME_PROTOCOL     *This,
91  IN  CHAR8                           *Language,
92  OUT CHAR16                          **DriverName
93  )
94{
95  return LookupUnicodeString2 (
96           Language,
97           This->SupportedLanguages,
98           mDwMmcHcDriverNameTable,
99           DriverName,
100           (BOOLEAN)(This == &gDwMmcHcComponentName)
101           );
102}
103
104/**
105  Retrieves a Unicode string that is the user readable name of the controller
106  that is being managed by a driver.
107
108  This function retrieves the user readable name of the controller specified by
109  ControllerHandle and ChildHandle in the form of a Unicode string. If the
110  driver specified by This has a user readable name in the language specified by
111  Language, then a pointer to the controller name is returned in ControllerName,
112  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
113  managing the controller specified by ControllerHandle and ChildHandle,
114  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
115  support the language specified by Language, then EFI_UNSUPPORTED is returned.
116
117  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
118                                EFI_COMPONENT_NAME_PROTOCOL instance.
119
120  @param  ControllerHandle[in]  The handle of a controller that the driver
121                                specified by This is managing.  This handle
122                                specifies the controller whose name is to be
123                                returned.
124
125  @param  ChildHandle[in]       The handle of the child controller to retrieve
126                                the name of.  This is an optional parameter that
127                                may be NULL.  It will be NULL for device
128                                drivers.  It will also be NULL for a bus drivers
129                                that wish to retrieve the name of the bus
130                                controller.  It will not be NULL for a bus
131                                driver that wishes to retrieve the name of a
132                                child controller.
133
134  @param  Language[in]          A pointer to a Null-terminated ASCII string
135                                array indicating the language.  This is the
136                                language of the driver name that the caller is
137                                requesting, and it must match one of the
138                                languages specified in SupportedLanguages. The
139                                number of languages supported by a driver is up
140                                to the driver writer. Language is specified in
141                                RFC 4646 or ISO 639-2 language code format.
142
143  @param  ControllerName[out]   A pointer to the Unicode string to return.
144                                This Unicode string is the name of the
145                                controller specified by ControllerHandle and
146                                ChildHandle in the language specified by
147                                Language from the point of view of the driver
148                                specified by This.
149
150  @retval EFI_SUCCESS           The Unicode string for the user readable name in
151                                the language specified by Language for the
152                                driver specified by This was returned in
153                                DriverName.
154
155  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
156
157  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
158                                EFI_HANDLE.
159
160  @retval EFI_INVALID_PARAMETER Language is NULL.
161
162  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
163
164  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
165                                managing the controller specified by
166                                ControllerHandle and ChildHandle.
167
168  @retval EFI_UNSUPPORTED       The driver specified by This does not support
169                                the language specified by Language.
170
171**/
172EFI_STATUS
173EFIAPI
174DwMmcHcComponentNameGetControllerName (
175  IN  EFI_COMPONENT_NAME_PROTOCOL     *This,
176  IN  EFI_HANDLE                      ControllerHandle,
177  IN  EFI_HANDLE                      ChildHandle, OPTIONAL
178  IN  CHAR8                           *Language,
179  OUT CHAR16                          **ControllerName
180  )
181{
182  EFI_STATUS         Status;
183
184  if (Language == NULL || ControllerName == NULL) {
185    return EFI_INVALID_PARAMETER;
186  }
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  // Make sure this driver is currently managing ControllerHandle
197  //
198  Status = EfiTestManagedDevice (
199             ControllerHandle,
200             gDwMmcHcDriverBinding.DriverBindingHandle,
201             &gEfiPciIoProtocolGuid
202             );
203  if (EFI_ERROR (Status)) {
204    return Status;
205  }
206
207  return LookupUnicodeString2 (
208           Language,
209           This->SupportedLanguages,
210           mDwMmcHcControllerNameTable,
211           ControllerName,
212           (BOOLEAN)(This == &gDwMmcHcComponentName)
213           );
214}
215