MdeModulePkg/Bus/Pci/SataControllerDxe/SataController.h

   1 /** @file
   2   Header file for Sata Controller driver.
   3
   4   Copyright (c) 2011 - 2016, 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 _SATA_CONTROLLER_H_
  16 #define _SATA_CONTROLLER_H_
  17
  18 #include <Uefi.h>
  19
  20 #include <IndustryStandard/Pci.h>
  21
  22 #include <Protocol/ComponentName.h>
  23 #include <Protocol/DriverBinding.h>
  24 #include <Protocol/PciIo.h>
  25 #include <Protocol/IdeControllerInit.h>
  26
  27 #include <Library/BaseLib.h>
  28 #include <Library/BaseMemoryLib.h>
  29 #include <Library/DebugLib.h>
  30 #include <Library/UefiLib.h>
  31 #include <Library/UefiDriverEntryPoint.h>
  32 #include <Library/MemoryAllocationLib.h>
  33 #include <Library/UefiBootServicesTableLib.h>
  34
  35 //
  36 // Global Variables definitions
  37 //
  38 extern EFI_DRIVER_BINDING_PROTOCOL  gSataControllerDriverBinding;
  39 extern EFI_COMPONENT_NAME_PROTOCOL  gSataControllerComponentName;
  40 extern EFI_COMPONENT_NAME2_PROTOCOL gSataControllerComponentName2;
  41
  42 #define AHCI_BAR_INDEX 0x05
  43 #define R_AHCI_CAP 0x0
  44 #define   B_AHCI_CAP_NPS (BIT4 | BIT3 | BIT2 | BIT1 | BIT0) // Number of Ports
  45 #define   B_AHCI_CAP_SPM BIT17                              // Supports Port Multiplier
  46
  47 ///
  48 /// AHCI each channel can have up to 1 device
  49 ///
  50 #define AHCI_MAX_DEVICES       0x01
  51
  52 ///
  53 /// AHCI each channel can have 15 devices in the presence of a multiplier
  54 ///
  55 #define AHCI_MULTI_MAX_DEVICES 0x0F
  56
  57 ///
  58 /// IDE supports 2 channel max
  59 ///
  60 #define IDE_MAX_CHANNEL 0x02
  61
  62 ///
  63 /// IDE supports 2 devices max
  64 ///
  65 #define IDE_MAX_DEVICES 0x02
  66
  67 #define SATA_ENUMER_ALL FALSE
  68
  69 //
  70 // Sata Controller driver private data structure
  71 //
  72 #define SATA_CONTROLLER_SIGNATURE SIGNATURE_32('S','A','T','A')
  73
  74 typedef struct _EFI_SATA_CONTROLLER_PRIVATE_DATA {
  75   //
  76   // Standard signature used to identify Sata Controller private data
  77   //
  78   UINT32                            Signature;
  79
  80   //
  81   // Protocol instance of IDE_CONTROLLER_INIT produced by this driver
  82   //
  83   EFI_IDE_CONTROLLER_INIT_PROTOCOL  IdeInit;
  84
  85   //
  86   // Copy of protocol pointers used by this driver
  87   //
  88   EFI_PCI_IO_PROTOCOL               *PciIo;
  89
  90   //
  91   // The number of devices that are supported by this channel
  92   //
  93   UINT8                             DeviceCount;
  94
  95   //
  96   // The highest disqulified mode for each attached device,
  97   // From ATA/ATAPI spec, if a mode is not supported,
  98   // the modes higher than it is also not supported
  99   //
 100   EFI_ATA_COLLECTIVE_MODE           *DisqualifiedModes;
 101
 102   //
 103   // A copy of EFI_IDENTIFY_DATA data for each attached SATA device and its flag
 104   //
 105   EFI_IDENTIFY_DATA                 *IdentifyData;
 106   BOOLEAN                           *IdentifyValid;
 107 } EFI_SATA_CONTROLLER_PRIVATE_DATA;
 108
 109 #define SATA_CONTROLLER_PRIVATE_DATA_FROM_THIS(a) CR(a, EFI_SATA_CONTROLLER_PRIVATE_DATA, IdeInit, SATA_CONTROLLER_SIGNATURE)
 110
 111 //
 112 // Driver binding functions declaration
 113 //
 114 /**
 115   Supported function of Driver Binding protocol for this driver.
 116   Test to see if this driver supports ControllerHandle.
 117
 118   @param This                   Protocol instance pointer.
 119   @param Controller             Handle of device to test.
 120   @param RemainingDevicePath    A pointer to the device path. Should be ignored by
 121                                 device driver.
 122
 123   @retval EFI_SUCCESS           This driver supports this device.
 124   @retval EFI_ALREADY_STARTED   This driver is already running on this device.
 125   @retval other                 This driver does not support this device.
 126
 127 **/
 128 EFI_STATUS
 129 EFIAPI
 130 SataControllerSupported (
 131   IN EFI_DRIVER_BINDING_PROTOCOL    *This,
 132   IN EFI_HANDLE                     Controller,
 133   IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
 134   );
 135
 136 /**
 137   This routine is called right after the .Supported() called and
 138   Start this driver on ControllerHandle.
 139
 140   @param This                   Protocol instance pointer.
 141   @param Controller             Handle of device to bind driver to.
 142   @param RemainingDevicePath    A pointer to the device path. Should be ignored by
 143                                 device driver.
 144
 145   @retval EFI_SUCCESS           This driver is added to this device.
 146   @retval EFI_ALREADY_STARTED   This driver is already running on this device.
 147   @retval other                 Some error occurs when binding this driver to this device.
 148
 149 **/
 150 EFI_STATUS
 151 EFIAPI
 152 SataControllerStart (
 153   IN EFI_DRIVER_BINDING_PROTOCOL    *This,
 154   IN EFI_HANDLE                     Controller,
 155   IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
 156   );
 157
 158 /**
 159   Stop this driver on ControllerHandle.
 160
 161   @param This               A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
 162   @param Controller         A handle to the device being stopped.
 163   @param NumberOfChildren   The number of child device handles in ChildHandleBuffer.
 164   @param ChildHandleBuffer  An array of child handles to be freed.
 165
 166   @retval EFI_SUCCESS       This driver is removed from this device.
 167   @retval other             Some error occurs when removing this driver from this device.
 168
 169 **/
 170 EFI_STATUS
 171 EFIAPI
 172 SataControllerStop (
 173   IN EFI_DRIVER_BINDING_PROTOCOL    *This,
 174   IN EFI_HANDLE                     Controller,
 175   IN UINTN                          NumberOfChildren,
 176   IN EFI_HANDLE                     *ChildHandleBuffer
 177   );
 178
 179 //
 180 // IDE controller init functions declaration
 181 //
 182 /**
 183   Returns the information about the specified IDE channel.
 184
 185   This function can be used to obtain information about a particular IDE channel.
 186   The driver entity uses this information during the enumeration process.
 187
 188   If Enabled is set to FALSE, the driver entity will not scan the channel. Note
 189   that it will not prevent an operating system driver from scanning the channel.
 190
 191   For most of today's controllers, MaxDevices will either be 1 or 2. For SATA
 192   controllers, this value will always be 1. SATA configurations can contain SATA
 193   port multipliers. SATA port multipliers behave like SATA bridges and can support
 194   up to 16 devices on the other side. If a SATA port out of the IDE controller
 195   is connected to a port multiplier, MaxDevices will be set to the number of SATA
 196   devices that the port multiplier supports. Because today's port multipliers
 197   support up to fifteen SATA devices, this number can be as large as fifteen. The IDE
 198   bus driver is required to scan for the presence of port multipliers behind an SATA
 199   controller and enumerate up to MaxDevices number of devices behind the port
 200   multiplier.
 201
 202   In this context, the devices behind a port multiplier constitute a channel.
 203
 204   @param[in]  This                The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 205   @param[in]  Channel             Zero-based channel number.
 206   @param[out] Enabled             TRUE if this channel is enabled.  Disabled channels
 207                                   are not scanned to see if any devices are present.
 208   @param[out] MaxDevices          The maximum number of IDE devices that the bus driver
 209                                   can expect on this channel.  For the ATA/ATAPI
 210                                   specification, version 6, this number will either be
 211                                   one or two. For Serial ATA (SATA) configurations with a
 212                                   port multiplier, this number can be as large as fifteen.
 213
 214
 215   @retval EFI_SUCCESS             Information was returned without any errors.
 216   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 217
 218 **/
 219 EFI_STATUS
 220 EFIAPI
 221 IdeInitGetChannelInfo (
 222   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
 223   IN UINT8                              Channel,
 224   OUT BOOLEAN                           *Enabled,
 225   OUT UINT8                             *MaxDevices
 226   );
 227
 228 /**
 229   The notifications from the driver entity that it is about to enter a certain
 230   phase of the IDE channel enumeration process.
 231
 232   This function can be used to notify the IDE controller driver to perform
 233   specific actions, including any chipset-specific initialization, so that the
 234   chipset is ready to enter the next phase. Seven notification points are defined
 235   at this time.
 236
 237   More synchronization points may be added as required in the future.
 238
 239   @param[in] This                 The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL
 240                                   instance.
 241   @param[in] Phase                The phase during enumeration.
 242   @param[in] Channel              Zero-based channel number.
 243
 244   @retval EFI_SUCCESS             The notification was accepted without any errors.
 245   @retval EFI_UNSUPPORTED         Phase is not supported.
 246   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 247   @retval EFI_NOT_READY           This phase cannot be entered at this time; for
 248                                   example, an attempt was made to enter a Phase
 249                                   without having entered one or more previous
 250                                   Phase.
 251
 252 **/
 253 EFI_STATUS
 254 EFIAPI
 255 IdeInitNotifyPhase (
 256   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
 257   IN EFI_IDE_CONTROLLER_ENUM_PHASE      Phase,
 258   IN UINT8                              Channel
 259   );
 260
 261 /**
 262   Submits the device information to the IDE controller driver.
 263
 264   This function is used by the driver entity to pass detailed information about
 265   a particular device to the IDE controller driver. The driver entity obtains
 266   this information by issuing an ATA or ATAPI IDENTIFY_DEVICE command. IdentifyData
 267   is the pointer to the response data buffer. The IdentifyData buffer is owned
 268   by the driver entity, and the IDE controller driver must make a local copy
 269   of the entire buffer or parts of the buffer as needed. The original IdentifyData
 270   buffer pointer may not be valid when
 271
 272     - EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() or
 273     - EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode() is called at a later point.
 274
 275   The IDE controller driver may consult various fields of EFI_IDENTIFY_DATA to
 276   compute the optimum mode for the device. These fields are not limited to the
 277   timing information. For example, an implementation of the IDE controller driver
 278   may examine the vendor and type/mode field to match known bad drives.
 279
 280   The driver entity may submit drive information in any order, as long as it
 281   submits information for all the devices belonging to the enumeration group
 282   before EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() is called for any device
 283   in that enumeration group. If a device is absent, EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 284   should be called with IdentifyData set to NULL.  The IDE controller driver may
 285   not have any other mechanism to know whether a device is present or not. Therefore,
 286   setting IdentifyData to NULL does not constitute an error condition.
 287   EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData() can be called only once for a
 288   given (Channel, Device) pair.
 289
 290   @param[in] This                 A pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 291   @param[in] Channel              Zero-based channel number.
 292   @param[in] Device               Zero-based device number on the Channel.
 293   @param[in] IdentifyData         The device's response to the ATA IDENTIFY_DEVICE command.
 294
 295   @retval EFI_SUCCESS             The information was accepted without any errors.
 296   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 297   @retval EFI_INVALID_PARAMETER   Device is invalid.
 298
 299 **/
 300 EFI_STATUS
 301 EFIAPI
 302 IdeInitSubmitData (
 303   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
 304   IN UINT8                              Channel,
 305   IN UINT8                              Device,
 306   IN EFI_IDENTIFY_DATA                  *IdentifyData
 307   );
 308
 309 /**
 310   Disqualifies specific modes for an IDE device.
 311
 312   This function allows the driver entity or other drivers (such as platform
 313   drivers) to reject certain timing modes and request the IDE controller driver
 314   to recalculate modes. This function allows the driver entity and the IDE
 315   controller driver to negotiate the timings on a per-device basis. This function
 316   is useful in the case of drives that lie about their capabilities. An example
 317   is when the IDE device fails to accept the timing modes that are calculated
 318   by the IDE controller driver based on the response to the Identify Drive command.
 319
 320   If the driver entity does not want to limit the ATA timing modes and leave that
 321   decision to the IDE controller driver, it can either not call this function for
 322   the given device or call this function and set the Valid flag to FALSE for all
 323   modes that are listed in EFI_ATA_COLLECTIVE_MODE.
 324
 325   The driver entity may disqualify modes for a device in any order and any number
 326   of times.
 327
 328   This function can be called multiple times to invalidate multiple modes of the
 329   same type (e.g., Programmed Input/Output [PIO] modes 3 and 4). See the ATA/ATAPI
 330   specification for more information on PIO modes.
 331
 332   For Serial ATA (SATA) controllers, this member function can be used to disqualify
 333   a higher transfer rate mode on a given channel. For example, a platform driver
 334   may inform the IDE controller driver to not use second-generation (Gen2) speeds
 335   for a certain SATA drive.
 336
 337   @param[in] This                 The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 338   @param[in] Channel              The zero-based channel number.
 339   @param[in] Device               The zero-based device number on the Channel.
 340   @param[in] BadModes             The modes that the device does not support and that
 341                                   should be disqualified.
 342
 343   @retval EFI_SUCCESS             The modes were accepted without any errors.
 344   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 345   @retval EFI_INVALID_PARAMETER   Device is invalid.
 346   @retval EFI_INVALID_PARAMETER   IdentifyData is NULL.
 347
 348 **/
 349 EFI_STATUS
 350 EFIAPI
 351 IdeInitDisqualifyMode (
 352   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
 353   IN UINT8                              Channel,
 354   IN UINT8                              Device,
 355   IN EFI_ATA_COLLECTIVE_MODE            *BadModes
 356   );
 357
 358 /**
 359   Returns the information about the optimum modes for the specified IDE device.
 360
 361   This function is used by the driver entity to obtain the optimum ATA modes for
 362   a specific device.  The IDE controller driver takes into account the following
 363   while calculating the mode:
 364     - The IdentifyData inputs to EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 365     - The BadModes inputs to EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode()
 366
 367   The driver entity is required to call EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 368   for all the devices that belong to an enumeration group before calling
 369   EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() for any device in the same group.
 370
 371   The IDE controller driver will use controller- and possibly platform-specific
 372   algorithms to arrive at SupportedModes.  The IDE controller may base its
 373   decision on user preferences and other considerations as well. This function
 374   may be called multiple times because the driver entity may renegotiate the mode
 375   with the IDE controller driver using EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode().
 376
 377   The driver entity may collect timing information for various devices in any
 378   order. The driver entity is responsible for making sure that all the dependencies
 379   are satisfied. For example, the SupportedModes information for device A that
 380   was previously returned may become stale after a call to
 381   EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode() for device B.
 382
 383   The buffer SupportedModes is allocated by the callee because the caller does
 384   not necessarily know the size of the buffer. The type EFI_ATA_COLLECTIVE_MODE
 385   is defined in a way that allows for future extensibility and can be of variable
 386   length. This memory pool should be deallocated by the caller when it is no
 387   longer necessary.
 388
 389   The IDE controller driver for a Serial ATA (SATA) controller can use this
 390   member function to force a lower speed (first-generation [Gen1] speeds on a
 391   second-generation [Gen2]-capable hardware).  The IDE controller driver can
 392   also allow the driver entity to stay with the speed that has been negotiated
 393   by the physical layer.
 394
 395   @param[in]  This                The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 396   @param[in]  Channel             A zero-based channel number.
 397   @param[in]  Device              A zero-based device number on the Channel.
 398   @param[out] SupportedModes      The optimum modes for the device.
 399
 400   @retval EFI_SUCCESS             SupportedModes was returned.
 401   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 402   @retval EFI_INVALID_PARAMETER   Device is invalid.
 403   @retval EFI_INVALID_PARAMETER   SupportedModes is NULL.
 404   @retval EFI_NOT_READY           Modes cannot be calculated due to a lack of
 405                                   data.  This error may happen if
 406                                   EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 407                                   and EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyData()
 408                                   were not called for at least one drive in the
 409                                   same enumeration group.
 410
 411 **/
 412 EFI_STATUS
 413 EFIAPI
 414 IdeInitCalculateMode (
 415   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
 416   IN UINT8                              Channel,
 417   IN UINT8                              Device,
 418   OUT EFI_ATA_COLLECTIVE_MODE           **SupportedModes
 419   );
 420
 421 /**
 422   Commands the IDE controller driver to program the IDE controller hardware
 423   so that the specified device can operate at the specified mode.
 424
 425   This function is used by the driver entity to instruct the IDE controller
 426   driver to program the IDE controller hardware to the specified modes. This
 427   function can be called only once for a particular device. For a Serial ATA
 428   (SATA) Advanced Host Controller Interface (AHCI) controller, no controller-
 429   specific programming may be required.
 430
 431   @param[in] This                 Pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 432   @param[in] Channel              Zero-based channel number.
 433   @param[in] Device               Zero-based device number on the Channel.
 434   @param[in] Modes                The modes to set.
 435
 436   @retval EFI_SUCCESS             The command was accepted without any errors.
 437   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 438   @retval EFI_INVALID_PARAMETER   Device is invalid.
 439   @retval EFI_NOT_READY           Modes cannot be set at this time due to lack of data.
 440   @retval EFI_DEVICE_ERROR        Modes cannot be set due to hardware failure.
 441                                   The driver entity should not use this device.
 442
 443 **/
 444 EFI_STATUS
 445 EFIAPI
 446 IdeInitSetTiming (
 447   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
 448   IN UINT8                              Channel,
 449   IN UINT8                              Device,
 450   IN EFI_ATA_COLLECTIVE_MODE            *Modes
 451   );
 452
 453 //
 454 // Forward reference declaration
 455 //
 456 /**
 457   Retrieves a Unicode string that is the user readable name of the UEFI Driver.
 458
 459   @param This           A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
 460   @param Language       A pointer to a three character ISO 639-2 language identifier.
 461                         This is the language of the driver name that that the caller
 462                         is requesting, and it must match one of the languages specified
 463                         in SupportedLanguages.  The number of languages supported by a
 464                         driver is up to the driver writer.
 465   @param DriverName     A pointer to the Unicode string to return.  This Unicode string
 466                         is the name of the driver specified by This in the language
 467                         specified by Language.
 468
 469   @retval EFI_SUCCESS           The Unicode string for the Driver specified by This
 470                                 and the language specified by Language was returned
 471                                 in DriverName.
 472   @retval EFI_INVALID_PARAMETER Language is NULL.
 473   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 474   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
 475                                 language specified by Language.
 476 **/
 477 EFI_STATUS
 478 EFIAPI
 479 SataControllerComponentNameGetDriverName (
 480   IN EFI_COMPONENT_NAME_PROTOCOL    *This,
 481   IN CHAR8                          *Language,
 482   OUT CHAR16                        **DriverName
 483   );
 484
 485 /**
 486   Retrieves a Unicode string that is the user readable name of the controller
 487   that is being managed by an UEFI Driver.
 488
 489   @param This                   A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
 490   @param ControllerHandle       The handle of a controller that the driver specified by
 491                                 This is managing.  This handle specifies the controller
 492                                 whose name is to be returned.
 493   @param OPTIONAL   ChildHandle The handle of the child controller to retrieve the name
 494                                 of.  This is an optional parameter that may be NULL.  It
 495                                 will be NULL for device drivers.  It will also be NULL
 496                                 for a bus drivers that wish to retrieve the name of the
 497                                 bus controller.  It will not be NULL for a bus driver
 498                                 that wishes to retrieve the name of a child controller.
 499   @param Language               A pointer to a three character ISO 639-2 language
 500                                 identifier.  This is the language of the controller name
 501                                 that that the caller is requesting, and it must match one
 502                                 of the languages specified in SupportedLanguages.  The
 503                                 number of languages supported by a driver is up to the
 504                                 driver writer.
 505   @param ControllerName         A pointer to the Unicode string to return.  This Unicode
 506                                 string is the name of the controller specified by
 507                                 ControllerHandle and ChildHandle in the language
 508                                 specified by Language from the point of view of the
 509                                 driver specified by This.
 510
 511   @retval EFI_SUCCESS           The Unicode string for the user readable name in the
 512                                 language specified by Language for the driver
 513                                 specified by This was returned in DriverName.
 514   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 515   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 516                                 EFI_HANDLE.
 517   @retval EFI_INVALID_PARAMETER Language is NULL.
 518   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 519   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 520                                 managing the controller specified by
 521                                 ControllerHandle and ChildHandle.
 522   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
 523                                 language specified by Language.
 524 **/
 525 EFI_STATUS
 526 EFIAPI
 527 SataControllerComponentNameGetControllerName (
 528   IN EFI_COMPONENT_NAME_PROTOCOL    *This,
 529   IN EFI_HANDLE                     ControllerHandle,
 530   IN EFI_HANDLE                     ChildHandle OPTIONAL,
 531   IN CHAR8                          *Language,
 532   OUT CHAR16                        **ControllerName
 533   );
 534
 535 #endif
 536