1 /** @file 2 UEFI Component Name(2) protocol implementation for USB Keyboard driver. 3 4 Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 16 #include "KeyBoard.h" 17 18 // 19 // EFI Component Name Protocol 20 // 21 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gUsbKeyboardComponentName = { 22 UsbKeyboardComponentNameGetDriverName, 23 UsbKeyboardComponentNameGetControllerName, 24 "eng" 25 }; 26 27 // 28 // EFI Component Name 2 Protocol 29 // 30 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gUsbKeyboardComponentName2 = { 31 (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) UsbKeyboardComponentNameGetDriverName, 32 (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) UsbKeyboardComponentNameGetControllerName, 33 "en" 34 }; 35 36 37 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mUsbKeyboardDriverNameTable[] = { 38 { "eng;en", L"Usb Keyboard Driver" }, 39 { NULL , NULL } 40 }; 41 42 /** 43 Retrieves a Unicode string that is the user readable name of the driver. 44 45 This function retrieves the user readable name of a driver in the form of a 46 Unicode string. If the driver specified by This has a user readable name in 47 the language specified by Language, then a pointer to the driver name is 48 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified 49 by This does not support the language specified by Language, 50 then EFI_UNSUPPORTED is returned. 51 52 @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 53 EFI_COMPONENT_NAME_PROTOCOL instance. 54 @param Language A pointer to a Null-terminated ASCII string 55 array indicating the language. This is the 56 language of the driver name that the caller is 57 requesting, and it must match one of the 58 languages specified in SupportedLanguages. The 59 number of languages supported by a driver is up 60 to the driver writer. Language is specified 61 in RFC 4646 or ISO 639-2 language code format. 62 @param DriverName A pointer to the Unicode string to return. 63 This Unicode string is the name of the 64 driver specified by This in the language 65 specified by Language. 66 67 @retval EFI_SUCCESS The Unicode string for the Driver specified by 68 This and the language specified by Language was 69 returned in DriverName. 70 @retval EFI_INVALID_PARAMETER Language is NULL. 71 @retval EFI_INVALID_PARAMETER DriverName is NULL. 72 @retval EFI_UNSUPPORTED The driver specified by This does not support 73 the language specified by Language. 74 75 **/ 76 EFI_STATUS 77 EFIAPI 78 UsbKeyboardComponentNameGetDriverName ( 79 IN EFI_COMPONENT_NAME_PROTOCOL *This, 80 IN CHAR8 *Language, 81 OUT CHAR16 **DriverName 82 ) 83 { 84 return LookupUnicodeString2 ( 85 Language, 86 This->SupportedLanguages, 87 mUsbKeyboardDriverNameTable, 88 DriverName, 89 (BOOLEAN)(This == &gUsbKeyboardComponentName) 90 ); 91 } 92 93 /** 94 Retrieves a Unicode string that is the user readable name of the controller 95 that is being managed by a driver. 96 97 This function retrieves the user readable name of the controller specified by 98 ControllerHandle and ChildHandle in the form of a Unicode string. If the 99 driver specified by This has a user readable name in the language specified by 100 Language, then a pointer to the controller name is returned in ControllerName, 101 and EFI_SUCCESS is returned. If the driver specified by This is not currently 102 managing the controller specified by ControllerHandle and ChildHandle, 103 then EFI_UNSUPPORTED is returned. If the driver specified by This does not 104 support the language specified by Language, then EFI_UNSUPPORTED is returned. 105 106 @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 107 EFI_COMPONENT_NAME_PROTOCOL instance. 108 @param ControllerHandle The handle of a controller that the driver 109 specified by This is managing. This handle 110 specifies the controller whose name is to be 111 returned. 112 @param ChildHandle The handle of the child controller to retrieve 113 the name of. This is an optional parameter that 114 may be NULL. It will be NULL for device 115 drivers. It will also be NULL for a bus drivers 116 that wish to retrieve the name of the bus 117 controller. It will not be NULL for a bus 118 driver that wishes to retrieve the name of a 119 child controller. 120 @param Language A pointer to a Null-terminated ASCII string 121 array indicating the language. This is the 122 language of the driver name that the caller is 123 requesting, and it must match one of the 124 languages specified in SupportedLanguages. The 125 number of languages supported by a driver is up 126 to the driver writer. Language is specified in 127 RFC 4646 or ISO 639-2 language code format. 128 @param ControllerName A pointer to the Unicode string to return. 129 This Unicode string is the name of the 130 controller specified by ControllerHandle and 131 ChildHandle in the language specified by 132 Language from the point of view of the driver 133 specified by This. 134 135 @retval EFI_SUCCESS The Unicode string for the user readable name in 136 the language specified by Language for the 137 driver specified by This was returned in 138 DriverName. 139 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. 140 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid 141 EFI_HANDLE. 142 @retval EFI_INVALID_PARAMETER Language is NULL. 143 @retval EFI_INVALID_PARAMETER ControllerName is NULL. 144 @retval EFI_UNSUPPORTED The driver specified by This is not currently 145 managing the controller specified by 146 ControllerHandle and ChildHandle. 147 @retval EFI_UNSUPPORTED The driver specified by This does not support 148 the language specified by Language. 149 150 **/ 151 EFI_STATUS 152 EFIAPI 153 UsbKeyboardComponentNameGetControllerName ( 154 IN EFI_COMPONENT_NAME_PROTOCOL *This, 155 IN EFI_HANDLE ControllerHandle, 156 IN EFI_HANDLE ChildHandle OPTIONAL, 157 IN CHAR8 *Language, 158 OUT CHAR16 **ControllerName 159 ) 160 { 161 EFI_STATUS Status; 162 USB_KB_DEV *UsbKbDev; 163 EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleTxtIn; 164 EFI_USB_IO_PROTOCOL *UsbIoProtocol; 165 // 166 // This is a device driver, so ChildHandle must be NULL. 167 // 168 if (ChildHandle != NULL) { 169 return EFI_UNSUPPORTED; 170 } 171 172 // 173 // Check Controller's handle 174 // 175 Status = gBS->OpenProtocol ( 176 ControllerHandle, 177 &gEfiUsbIoProtocolGuid, 178 (VOID **) &UsbIoProtocol, 179 gUsbKeyboardDriverBinding.DriverBindingHandle, 180 ControllerHandle, 181 EFI_OPEN_PROTOCOL_BY_DRIVER 182 ); 183 if (!EFI_ERROR (Status)) { 184 gBS->CloseProtocol ( 185 ControllerHandle, 186 &gEfiUsbIoProtocolGuid, 187 gUsbKeyboardDriverBinding.DriverBindingHandle, 188 ControllerHandle 189 ); 190 191 return EFI_UNSUPPORTED; 192 } 193 194 if (Status != EFI_ALREADY_STARTED) { 195 return EFI_UNSUPPORTED; 196 } 197 // 198 // Get the device context 199 // 200 Status = gBS->OpenProtocol ( 201 ControllerHandle, 202 &gEfiSimpleTextInProtocolGuid, 203 (VOID **) &SimpleTxtIn, 204 gUsbKeyboardDriverBinding.DriverBindingHandle, 205 ControllerHandle, 206 EFI_OPEN_PROTOCOL_GET_PROTOCOL 207 ); 208 209 if (EFI_ERROR (Status)) { 210 return Status; 211 } 212 213 UsbKbDev = USB_KB_DEV_FROM_THIS (SimpleTxtIn); 214 215 return LookupUnicodeString2 ( 216 Language, 217 This->SupportedLanguages, 218 UsbKbDev->ControllerNameTable, 219 ControllerName, 220 (BOOLEAN)(This == &gUsbKeyboardComponentName) 221 ); 222 223 } 224
