MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.h

   1 /** @file
   2   Header file for Console Platfrom DXE Driver.
   3
   4 Copyright (c) 2006 - 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 #ifndef _CON_PLATFORM_H_
  16 #define _CON_PLATFORM_H_
  17
  18 #include <Uefi.h>
  19
  20 #include <Protocol/SimpleTextOut.h>
  21 #include <Protocol/DevicePath.h>
  22 #include <Protocol/SimpleTextIn.h>
  23 #include <Protocol/PciIo.h>
  24 #include <Protocol/GraphicsOutput.h>
  25
  26 #include <Guid/GlobalVariable.h>
  27 #include <Guid/ConsoleInDevice.h>
  28 #include <Guid/StandardErrorDevice.h>
  29 #include <Guid/ConsoleOutDevice.h>
  30
  31 #include <Library/DebugLib.h>
  32 #include <Library/UefiDriverEntryPoint.h>
  33 #include <Library/UefiLib.h>
  34 #include <Library/BaseMemoryLib.h>
  35 #include <Library/UefiBootServicesTableLib.h>
  36 #include <Library/UefiRuntimeServicesTableLib.h>
  37 #include <Library/DevicePathLib.h>
  38 #include <Library/MemoryAllocationLib.h>
  39
  40 //
  41 // Driver Binding Externs
  42 //
  43 extern EFI_DRIVER_BINDING_PROTOCOL  gConPlatformTextInDriverBinding;
  44 extern EFI_COMPONENT_NAME_PROTOCOL  gConPlatformComponentName;
  45 extern EFI_COMPONENT_NAME2_PROTOCOL gConPlatformComponentName2;
  46 extern EFI_DRIVER_BINDING_PROTOCOL  gConPlatformTextOutDriverBinding;
  47 extern EFI_COMPONENT_NAME_PROTOCOL  gConPlatformComponentName;
  48 extern EFI_COMPONENT_NAME2_PROTOCOL gConPlatformComponentName2;
  49
  50
  51 typedef enum {
  52   Check,
  53   Append,
  54   Delete
  55 } CONPLATFORM_VAR_OPERATION;
  56
  57 /**
  58   Test to see if specific protocol could be supported on the ControllerHandle.
  59
  60   @param  This                Protocol instance pointer.
  61   @param  ControllerHandle    Handle of device to test.
  62   @param  ProtocolGuid        The specfic protocol.
  63
  64   @retval EFI_SUCCESS         This driver supports this device
  65   @retval other               This driver does not support this device
  66
  67 **/
  68 EFI_STATUS
  69 ConPlatformDriverBindingSupported (
  70   IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
  71   IN  EFI_HANDLE                   ControllerHandle,
  72   IN  EFI_GUID                     *ProtocolGuid
  73   );
  74
  75 /**
  76   Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.
  77
  78   @param  This                Protocol instance pointer.
  79   @param  ControllerHandle    Handle of device to test.
  80   @param  RemainingDevicePath Optional parameter use to pick a specific child
  81                               device to start.
  82
  83   @retval EFI_SUCCESS         This driver supports this device.
  84   @retval other               This driver does not support this device.
  85
  86 **/
  87 EFI_STATUS
  88 EFIAPI
  89 ConPlatformTextInDriverBindingSupported (
  90   IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
  91   IN  EFI_HANDLE                   Handle,
  92   IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
  93   );
  94
  95 /**
  96   Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.
  97
  98   @param  This                Protocol instance pointer.
  99   @param  ControllerHandle    Handle of device to test.
 100   @param  RemainingDevicePath Optional parameter use to pick a specific child
 101                               device to start.
 102
 103   @retval EFI_SUCCESS         This driver supports this device.
 104   @retval other               This driver does not support this device.
 105
 106 **/
 107 EFI_STATUS
 108 EFIAPI
 109 ConPlatformTextOutDriverBindingSupported (
 110   IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
 111   IN  EFI_HANDLE                   Handle,
 112   IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
 113   );
 114
 115 /**
 116   Start this driver on the device for console input.
 117
 118   Start this driver on ControllerHandle by opening Simple Text Input Protocol,
 119   reading Device Path, and installing Console In Devcice GUID on ControllerHandle.
 120
 121   If this devcie is not one hot-plug devce, append its device path into the
 122   console environment variables ConInDev.
 123
 124   @param  This                 Protocol instance pointer.
 125   @param  ControllerHandle     Handle of device to bind driver to
 126   @param  RemainingDevicePath  Optional parameter use to pick a specific child
 127                                device to start.
 128
 129   @retval EFI_SUCCESS          This driver is added to ControllerHandle
 130   @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle
 131   @retval other                This driver does not support this device.
 132
 133 **/
 134 EFI_STATUS
 135 EFIAPI
 136 ConPlatformTextInDriverBindingStart (
 137   IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
 138   IN  EFI_HANDLE                    Handle,
 139   IN  EFI_DEVICE_PATH_PROTOCOL      *RemainingDevicePath
 140   );
 141
 142 /**
 143   Start this driver on the device for console output and stardard error output.
 144
 145   Start this driver on ControllerHandle by opening Simple Text Output Protocol,
 146   reading Device Path, and installing Console Out Devcic GUID, Standard Error
 147   Device GUID on ControllerHandle.
 148
 149   If this devcie is not one hot-plug devce, append its device path into the
 150   console environment variables ConOutDev, StdErrDev.
 151
 152   @param  This                 Protocol instance pointer.
 153   @param  ControllerHandle     Handle of device to bind driver to
 154   @param  RemainingDevicePath  Optional parameter use to pick a specific child
 155                                device to start.
 156
 157   @retval EFI_SUCCESS          This driver is added to ControllerHandle
 158   @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle
 159   @retval other                This driver does not support this device
 160
 161 **/
 162 EFI_STATUS
 163 EFIAPI
 164 ConPlatformTextOutDriverBindingStart (
 165   IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
 166   IN  EFI_HANDLE                    Handle,
 167   IN  EFI_DEVICE_PATH_PROTOCOL      *RemainingDevicePath
 168   );
 169
 170 /**
 171   Stop this driver on ControllerHandle by removing Console In Devcice GUID
 172   and closing the Simple Text Input protocol on ControllerHandle.
 173
 174   @param  This              Protocol instance pointer.
 175   @param  ControllerHandle  Handle of device to stop driver on
 176   @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
 177                             children is zero stop the entire bus driver.
 178   @param  ChildHandleBuffer List of Child Handles to Stop.
 179
 180   @retval EFI_SUCCESS       This driver is removed ControllerHandle
 181   @retval other             This driver was not removed from this device
 182
 183 **/
 184 EFI_STATUS
 185 EFIAPI
 186 ConPlatformTextInDriverBindingStop (
 187   IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
 188   IN  EFI_HANDLE                   Handle,
 189   IN  UINTN                        NumberOfChildren,
 190   IN  EFI_HANDLE                   *ChildHandleBuffer
 191   );
 192
 193 /**
 194   Stop this driver on ControllerHandle by removing Console Out Devcice GUID
 195   and closing the Simple Text Output protocol on ControllerHandle.
 196
 197   @param  This              Protocol instance pointer.
 198   @param  ControllerHandle  Handle of device to stop driver on
 199   @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
 200                             children is zero stop the entire bus driver.
 201   @param  ChildHandleBuffer List of Child Handles to Stop.
 202
 203   @retval EFI_SUCCESS       This driver is removed ControllerHandle
 204   @retval other             This driver was not removed from this device
 205
 206 **/
 207 EFI_STATUS
 208 EFIAPI
 209 ConPlatformTextOutDriverBindingStop (
 210   IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
 211   IN  EFI_HANDLE                   Handle,
 212   IN  UINTN                        NumberOfChildren,
 213   IN  EFI_HANDLE                   *ChildHandleBuffer
 214   );
 215
 216 /**
 217   Uninstall the specified protocol.
 218
 219   @param This            Protocol instance pointer.
 220   @param Handle          Handle of device to uninstall protocol on.
 221   @param ProtocolGuid    The specified protocol need to be uninstalled.
 222
 223 **/
 224 VOID
 225 ConPlatformUnInstallProtocol (
 226   IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
 227   IN  EFI_HANDLE                   Handle,
 228   IN  EFI_GUID                     *ProtocolGuid
 229   );
 230
 231 /**
 232   Read the EFI variable (Name) and return a dynamically allocated
 233   buffer, and the size of the buffer. On failure return NULL.
 234
 235   @param  Name             String part of EFI variable name
 236
 237   @return Dynamically allocated memory that contains a copy of the EFI variable.
 238           Caller is repsoncible freeing the buffer. Return NULL means Variable
 239           was not read.
 240
 241 **/
 242 VOID *
 243 ConPlatformGetVariable (
 244   IN  CHAR16              *Name
 245   );
 246
 247 /**
 248   Function compares a device path data structure to that of all the nodes of a
 249   second device path instance.
 250
 251
 252   @param Multi           A pointer to a multi-instance device path data structure.
 253   @param Single          A pointer to a single-instance device path data structure.
 254   @param NewDevicePath   If Delete is TRUE, this parameter must not be null, and it
 255                          points to the remaining device path data structure.
 256                          (remaining device path = Multi - Single.)
 257   @param Delete          If TRUE, means removing Single from Multi.
 258                          If FALSE, the routine just check whether Single matches
 259                          with any instance in Multi.
 260
 261   @retval EFI_SUCCESS           If the Single is contained within Multi.
 262   @retval EFI_NOT_FOUND         If the Single is not contained within Multi.
 263   @retval EFI_INVALID_PARAMETER Multi is NULL.
 264   @retval EFI_INVALID_PARAMETER Single is NULL.
 265   @retval EFI_INVALID_PARAMETER NewDevicePath is NULL when Delete is TRUE.
 266
 267 **/
 268 EFI_STATUS
 269 ConPlatformMatchDevicePaths (
 270   IN  EFI_DEVICE_PATH_PROTOCOL  *Multi,
 271   IN  EFI_DEVICE_PATH_PROTOCOL  *Single,
 272   OUT EFI_DEVICE_PATH_PROTOCOL  **NewDevicePath OPTIONAL,
 273   IN  BOOLEAN                   Delete
 274   );
 275
 276 /**
 277   Update console environment variables.
 278
 279   @param  VariableName    Console environment variables, ConOutDev, ConInDev
 280                           StdErrDev, ConIn or ConOut.
 281   @param  DevicePath      Console devcie's device path.
 282   @param  Operation       Variable operations, including APPEND, CHECK and DELETE.
 283
 284   @retval EFI_SUCCESS           Variable operates successfully.
 285   @retval EFI_OUT_OF_RESOURCES  If variable cannot be appended.
 286   @retval other                 Variable updating failed.
 287
 288 **/
 289 EFI_STATUS
 290 ConPlatformUpdateDeviceVariable (
 291   IN  CHAR16                    *VariableName,
 292   IN  EFI_DEVICE_PATH_PROTOCOL  *DevicePath,
 293   IN  CONPLATFORM_VAR_OPERATION Operation
 294   );
 295
 296 /**
 297   Check if the device supports hot-plug through its device path.
 298
 299   This function could be updated to check more types of Hot Plug devices.
 300   Currently, it checks USB and PCCard device.
 301
 302   @param  DevicePath            Pointer to device's device path.
 303
 304   @retval TRUE                  The devcie is a hot-plug device
 305   @retval FALSE                 The devcie is not a hot-plug device.
 306
 307 **/
 308 BOOLEAN
 309 IsHotPlugDevice (
 310   IN  EFI_DEVICE_PATH_PROTOCOL    *DevicePath
 311   );
 312
 313 //
 314 // EFI Component Name Functions
 315 //
 316 /**
 317   Retrieves a Unicode string that is the user readable name of the driver.
 318
 319   This function retrieves the user readable name of a driver in the form of a
 320   Unicode string. If the driver specified by This has a user readable name in
 321   the language specified by Language, then a pointer to the driver name is
 322   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
 323   by This does not support the language specified by Language,
 324   then EFI_UNSUPPORTED is returned.
 325
 326   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 327                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 328   @param  Language[in]          A pointer to a Null-terminated ASCII string
 329                                 array indicating the language. This is the
 330                                 language of the driver name that the caller is
 331                                 requesting, and it must match one of the
 332                                 languages specified in SupportedLanguages. The
 333                                 number of languages supported by a driver is up
 334                                 to the driver writer. Language is specified
 335                                 in RFC 4646 or ISO 639-2 language code format.
 336   @param  DriverName[out]       A pointer to the Unicode string to return.
 337                                 This Unicode string is the name of the
 338                                 driver specified by This in the language
 339                                 specified by Language.
 340
 341   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
 342                                 This and the language specified by Language was
 343                                 returned in DriverName.
 344   @retval EFI_INVALID_PARAMETER Language is NULL.
 345   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 346   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 347                                 the language specified by Language.
 348
 349 **/
 350 EFI_STATUS
 351 EFIAPI
 352 ConPlatformComponentNameGetDriverName (
 353   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 354   IN  CHAR8                        *Language,
 355   OUT CHAR16                       **DriverName
 356   );
 357
 358
 359 /**
 360   Retrieves a Unicode string that is the user readable name of the controller
 361   that is being managed by a driver.
 362
 363   This function retrieves the user readable name of the controller specified by
 364   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 365   driver specified by This has a user readable name in the language specified by
 366   Language, then a pointer to the controller name is returned in ControllerName,
 367   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 368   managing the controller specified by ControllerHandle and ChildHandle,
 369   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 370   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 371
 372   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 373                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 374   @param  ControllerHandle[in]  The handle of a controller that the driver
 375                                 specified by This is managing.  This handle
 376                                 specifies the controller whose name is to be
 377                                 returned.
 378   @param  ChildHandle[in]       The handle of the child controller to retrieve
 379                                 the name of.  This is an optional parameter that
 380                                 may be NULL.  It will be NULL for device
 381                                 drivers.  It will also be NULL for a bus drivers
 382                                 that wish to retrieve the name of the bus
 383                                 controller.  It will not be NULL for a bus
 384                                 driver that wishes to retrieve the name of a
 385                                 child controller.
 386   @param  Language[in]          A pointer to a Null-terminated ASCII string
 387                                 array indicating the language.  This is the
 388                                 language of the driver name that the caller is
 389                                 requesting, and it must match one of the
 390                                 languages specified in SupportedLanguages. The
 391                                 number of languages supported by a driver is up
 392                                 to the driver writer. Language is specified in
 393                                 RFC 4646 or ISO 639-2 language code format.
 394   @param  ControllerName[out]   A pointer to the Unicode string to return.
 395                                 This Unicode string is the name of the
 396                                 controller specified by ControllerHandle and
 397                                 ChildHandle in the language specified by
 398                                 Language from the point of view of the driver
 399                                 specified by This.
 400
 401   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 402                                 the language specified by Language for the
 403                                 driver specified by This was returned in
 404                                 DriverName.
 405   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
 406   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 407                                 EFI_HANDLE.
 408   @retval EFI_INVALID_PARAMETER Language is NULL.
 409   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 410   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 411                                 managing the controller specified by
 412                                 ControllerHandle and ChildHandle.
 413   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 414                                 the language specified by Language.
 415
 416 **/
 417 EFI_STATUS
 418 EFIAPI
 419 ConPlatformComponentNameGetControllerName (
 420   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 421   IN  EFI_HANDLE                                      ControllerHandle,
 422   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 423   IN  CHAR8                                           *Language,
 424   OUT CHAR16                                          **ControllerName
 425   );
 426
 427 /**
 428   Update ConOutDev and ErrOutDev variables to add the device path of
 429   GOP controller itself and the sibling controllers.
 430
 431   @param  DevicePath            Pointer to device's device path.
 432
 433   @retval TRUE                  The devcie is a GOP device.
 434   @retval FALSE                 The devcie is not a GOP device.
 435
 436 **/
 437 BOOLEAN
 438 ConPlatformUpdateGopCandidate (
 439   IN  EFI_DEVICE_PATH_PROTOCOL    *DevicePath
 440   );
 441
 442 #endif