MdeModulePkg/Bus/Pci/SataControllerDxe/SataController.h

   1 /** @file
   2   Header file for Sata Controller driver.
   3
   4   Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
   5   Copyright (c) 2018, ARM Ltd. All rights reserved.<BR>
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #ifndef _SATA_CONTROLLER_H_
  11 #define _SATA_CONTROLLER_H_
  12
  13 #include <Uefi.h>
  14
  15 #include <IndustryStandard/Pci.h>
  16
  17 #include <Protocol/ComponentName.h>
  18 #include <Protocol/DriverBinding.h>
  19 #include <Protocol/PciIo.h>
  20 #include <Protocol/IdeControllerInit.h>
  21
  22 #include <Library/BaseLib.h>
  23 #include <Library/BaseMemoryLib.h>
  24 #include <Library/DebugLib.h>
  25 #include <Library/UefiLib.h>
  26 #include <Library/UefiDriverEntryPoint.h>
  27 #include <Library/MemoryAllocationLib.h>
  28 #include <Library/UefiBootServicesTableLib.h>
  29
  30 //
  31 // Global Variables definitions
  32 //
  33 extern EFI_DRIVER_BINDING_PROTOCOL   gSataControllerDriverBinding;
  34 extern EFI_COMPONENT_NAME_PROTOCOL   gSataControllerComponentName;
  35 extern EFI_COMPONENT_NAME2_PROTOCOL  gSataControllerComponentName2;
  36
  37 #define AHCI_BAR_INDEX    0x05
  38 #define R_AHCI_CAP        0x0
  39 #define   B_AHCI_CAP_NPS  (BIT4 | BIT3 | BIT2 | BIT1 | BIT0) // Number of Ports
  40 #define   B_AHCI_CAP_SPM  BIT17                              // Supports Port Multiplier
  41 #define R_AHCI_PI         0xC
  42
  43 ///
  44 /// AHCI each channel can have up to 1 device
  45 ///
  46 #define AHCI_MAX_DEVICES  0x01
  47
  48 ///
  49 /// AHCI each channel can have 15 devices in the presence of a multiplier
  50 ///
  51 #define AHCI_MULTI_MAX_DEVICES  0x0F
  52
  53 ///
  54 /// IDE supports 2 channel max
  55 ///
  56 #define IDE_MAX_CHANNEL  0x02
  57
  58 ///
  59 /// IDE supports 2 devices max
  60 ///
  61 #define IDE_MAX_DEVICES  0x02
  62
  63 #define SATA_ENUMER_ALL  FALSE
  64
  65 //
  66 // Sata Controller driver private data structure
  67 //
  68 #define SATA_CONTROLLER_SIGNATURE  SIGNATURE_32('S','A','T','A')
  69
  70 typedef struct _EFI_SATA_CONTROLLER_PRIVATE_DATA {
  71   //
  72   // Standard signature used to identify Sata Controller private data
  73   //
  74   UINT32                              Signature;
  75
  76   //
  77   // Protocol instance of IDE_CONTROLLER_INIT produced by this driver
  78   //
  79   EFI_IDE_CONTROLLER_INIT_PROTOCOL    IdeInit;
  80
  81   //
  82   // Copy of protocol pointers used by this driver
  83   //
  84   EFI_PCI_IO_PROTOCOL                 *PciIo;
  85
  86   //
  87   // The number of devices that are supported by this channel
  88   //
  89   UINT8                               DeviceCount;
  90
  91   //
  92   // The highest disqulified mode for each attached device,
  93   // From ATA/ATAPI spec, if a mode is not supported,
  94   // the modes higher than it is also not supported
  95   //
  96   EFI_ATA_COLLECTIVE_MODE             *DisqualifiedModes;
  97
  98   //
  99   // A copy of EFI_IDENTIFY_DATA data for each attached SATA device and its flag
 100   //
 101   EFI_IDENTIFY_DATA                   *IdentifyData;
 102   BOOLEAN                             *IdentifyValid;
 103
 104   //
 105   // Track the state so that the PCI attributes that were modified
 106   // can be restored to the original value later.
 107   //
 108   BOOLEAN                             PciAttributesChanged;
 109
 110   //
 111   // Copy of the original PCI Attributes
 112   //
 113   UINT64                              OriginalPciAttributes;
 114 } EFI_SATA_CONTROLLER_PRIVATE_DATA;
 115
 116 #define SATA_CONTROLLER_PRIVATE_DATA_FROM_THIS(a)  CR(a, EFI_SATA_CONTROLLER_PRIVATE_DATA, IdeInit, SATA_CONTROLLER_SIGNATURE)
 117
 118 //
 119 // Driver binding functions declaration
 120 //
 121
 122 /**
 123   Supported function of Driver Binding protocol for this driver.
 124   Test to see if this driver supports ControllerHandle.
 125
 126   @param This                   Protocol instance pointer.
 127   @param Controller             Handle of device to test.
 128   @param RemainingDevicePath    A pointer to the device path. Should be ignored by
 129                                 device driver.
 130
 131   @retval EFI_SUCCESS           This driver supports this device.
 132   @retval EFI_ALREADY_STARTED   This driver is already running on this device.
 133   @retval other                 This driver does not support this device.
 134
 135 **/
 136 EFI_STATUS
 137 EFIAPI
 138 SataControllerSupported (
 139   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 140   IN EFI_HANDLE                   Controller,
 141   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
 142   );
 143
 144 /**
 145   This routine is called right after the .Supported() called and
 146   Start this driver on ControllerHandle.
 147
 148   @param This                   Protocol instance pointer.
 149   @param Controller             Handle of device to bind driver to.
 150   @param RemainingDevicePath    A pointer to the device path. Should be ignored by
 151                                 device driver.
 152
 153   @retval EFI_SUCCESS           This driver is added to this device.
 154   @retval EFI_ALREADY_STARTED   This driver is already running on this device.
 155   @retval other                 Some error occurs when binding this driver to this device.
 156
 157 **/
 158 EFI_STATUS
 159 EFIAPI
 160 SataControllerStart (
 161   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 162   IN EFI_HANDLE                   Controller,
 163   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
 164   );
 165
 166 /**
 167   Stop this driver on ControllerHandle.
 168
 169   @param This               A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
 170   @param Controller         A handle to the device being stopped.
 171   @param NumberOfChildren   The number of child device handles in ChildHandleBuffer.
 172   @param ChildHandleBuffer  An array of child handles to be freed.
 173
 174   @retval EFI_SUCCESS       This driver is removed from this device.
 175   @retval other             Some error occurs when removing this driver from this device.
 176
 177 **/
 178 EFI_STATUS
 179 EFIAPI
 180 SataControllerStop (
 181   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 182   IN EFI_HANDLE                   Controller,
 183   IN UINTN                        NumberOfChildren,
 184   IN EFI_HANDLE                   *ChildHandleBuffer
 185   );
 186
 187 //
 188 // IDE controller init functions declaration
 189 //
 190
 191 /**
 192   Returns the information about the specified IDE channel.
 193
 194   This function can be used to obtain information about a particular IDE channel.
 195   The driver entity uses this information during the enumeration process.
 196
 197   If Enabled is set to FALSE, the driver entity will not scan the channel. Note
 198   that it will not prevent an operating system driver from scanning the channel.
 199
 200   For most of today's controllers, MaxDevices will either be 1 or 2. For SATA
 201   controllers, this value will always be 1. SATA configurations can contain SATA
 202   port multipliers. SATA port multipliers behave like SATA bridges and can support
 203   up to 16 devices on the other side. If a SATA port out of the IDE controller
 204   is connected to a port multiplier, MaxDevices will be set to the number of SATA
 205   devices that the port multiplier supports. Because today's port multipliers
 206   support up to fifteen SATA devices, this number can be as large as fifteen. The IDE
 207   bus driver is required to scan for the presence of port multipliers behind an SATA
 208   controller and enumerate up to MaxDevices number of devices behind the port
 209   multiplier.
 210
 211   In this context, the devices behind a port multiplier constitute a channel.
 212
 213   @param[in]  This                The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 214   @param[in]  Channel             Zero-based channel number.
 215   @param[out] Enabled             TRUE if this channel is enabled.  Disabled channels
 216                                   are not scanned to see if any devices are present.
 217   @param[out] MaxDevices          The maximum number of IDE devices that the bus driver
 218                                   can expect on this channel.  For the ATA/ATAPI
 219                                   specification, version 6, this number will either be
 220                                   one or two. For Serial ATA (SATA) configurations with a
 221                                   port multiplier, this number can be as large as fifteen.
 222
 223
 224   @retval EFI_SUCCESS             Information was returned without any errors.
 225   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 226
 227 **/
 228 EFI_STATUS
 229 EFIAPI
 230 IdeInitGetChannelInfo (
 231   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL  *This,
 232   IN UINT8                             Channel,
 233   OUT BOOLEAN                          *Enabled,
 234   OUT UINT8                            *MaxDevices
 235   );
 236
 237 /**
 238   The notifications from the driver entity that it is about to enter a certain
 239   phase of the IDE channel enumeration process.
 240
 241   This function can be used to notify the IDE controller driver to perform
 242   specific actions, including any chipset-specific initialization, so that the
 243   chipset is ready to enter the next phase. Seven notification points are defined
 244   at this time.
 245
 246   More synchronization points may be added as required in the future.
 247
 248   @param[in] This                 The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL
 249                                   instance.
 250   @param[in] Phase                The phase during enumeration.
 251   @param[in] Channel              Zero-based channel number.
 252
 253   @retval EFI_SUCCESS             The notification was accepted without any errors.
 254   @retval EFI_UNSUPPORTED         Phase is not supported.
 255   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 256   @retval EFI_NOT_READY           This phase cannot be entered at this time; for
 257                                   example, an attempt was made to enter a Phase
 258                                   without having entered one or more previous
 259                                   Phase.
 260
 261 **/
 262 EFI_STATUS
 263 EFIAPI
 264 IdeInitNotifyPhase (
 265   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL  *This,
 266   IN EFI_IDE_CONTROLLER_ENUM_PHASE     Phase,
 267   IN UINT8                             Channel
 268   );
 269
 270 /**
 271   Submits the device information to the IDE controller driver.
 272
 273   This function is used by the driver entity to pass detailed information about
 274   a particular device to the IDE controller driver. The driver entity obtains
 275   this information by issuing an ATA or ATAPI IDENTIFY_DEVICE command. IdentifyData
 276   is the pointer to the response data buffer. The IdentifyData buffer is owned
 277   by the driver entity, and the IDE controller driver must make a local copy
 278   of the entire buffer or parts of the buffer as needed. The original IdentifyData
 279   buffer pointer may not be valid when
 280
 281     - EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() or
 282     - EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode() is called at a later point.
 283
 284   The IDE controller driver may consult various fields of EFI_IDENTIFY_DATA to
 285   compute the optimum mode for the device. These fields are not limited to the
 286   timing information. For example, an implementation of the IDE controller driver
 287   may examine the vendor and type/mode field to match known bad drives.
 288
 289   The driver entity may submit drive information in any order, as long as it
 290   submits information for all the devices belonging to the enumeration group
 291   before EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() is called for any device
 292   in that enumeration group. If a device is absent, EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 293   should be called with IdentifyData set to NULL.  The IDE controller driver may
 294   not have any other mechanism to know whether a device is present or not. Therefore,
 295   setting IdentifyData to NULL does not constitute an error condition.
 296   EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData() can be called only once for a
 297   given (Channel, Device) pair.
 298
 299   @param[in] This                 A pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 300   @param[in] Channel              Zero-based channel number.
 301   @param[in] Device               Zero-based device number on the Channel.
 302   @param[in] IdentifyData         The device's response to the ATA IDENTIFY_DEVICE command.
 303
 304   @retval EFI_SUCCESS             The information was accepted without any errors.
 305   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 306   @retval EFI_INVALID_PARAMETER   Device is invalid.
 307
 308 **/
 309 EFI_STATUS
 310 EFIAPI
 311 IdeInitSubmitData (
 312   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL  *This,
 313   IN UINT8                             Channel,
 314   IN UINT8                             Device,
 315   IN EFI_IDENTIFY_DATA                 *IdentifyData
 316   );
 317
 318 /**
 319   Disqualifies specific modes for an IDE device.
 320
 321   This function allows the driver entity or other drivers (such as platform
 322   drivers) to reject certain timing modes and request the IDE controller driver
 323   to recalculate modes. This function allows the driver entity and the IDE
 324   controller driver to negotiate the timings on a per-device basis. This function
 325   is useful in the case of drives that lie about their capabilities. An example
 326   is when the IDE device fails to accept the timing modes that are calculated
 327   by the IDE controller driver based on the response to the Identify Drive command.
 328
 329   If the driver entity does not want to limit the ATA timing modes and leave that
 330   decision to the IDE controller driver, it can either not call this function for
 331   the given device or call this function and set the Valid flag to FALSE for all
 332   modes that are listed in EFI_ATA_COLLECTIVE_MODE.
 333
 334   The driver entity may disqualify modes for a device in any order and any number
 335   of times.
 336
 337   This function can be called multiple times to invalidate multiple modes of the
 338   same type (e.g., Programmed Input/Output [PIO] modes 3 and 4). See the ATA/ATAPI
 339   specification for more information on PIO modes.
 340
 341   For Serial ATA (SATA) controllers, this member function can be used to disqualify
 342   a higher transfer rate mode on a given channel. For example, a platform driver
 343   may inform the IDE controller driver to not use second-generation (Gen2) speeds
 344   for a certain SATA drive.
 345
 346   @param[in] This                 The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 347   @param[in] Channel              The zero-based channel number.
 348   @param[in] Device               The zero-based device number on the Channel.
 349   @param[in] BadModes             The modes that the device does not support and that
 350                                   should be disqualified.
 351
 352   @retval EFI_SUCCESS             The modes were accepted without any errors.
 353   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 354   @retval EFI_INVALID_PARAMETER   Device is invalid.
 355   @retval EFI_INVALID_PARAMETER   IdentifyData is NULL.
 356
 357 **/
 358 EFI_STATUS
 359 EFIAPI
 360 IdeInitDisqualifyMode (
 361   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL  *This,
 362   IN UINT8                             Channel,
 363   IN UINT8                             Device,
 364   IN EFI_ATA_COLLECTIVE_MODE           *BadModes
 365   );
 366
 367 /**
 368   Returns the information about the optimum modes for the specified IDE device.
 369
 370   This function is used by the driver entity to obtain the optimum ATA modes for
 371   a specific device.  The IDE controller driver takes into account the following
 372   while calculating the mode:
 373     - The IdentifyData inputs to EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 374     - The BadModes inputs to EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode()
 375
 376   The driver entity is required to call EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 377   for all the devices that belong to an enumeration group before calling
 378   EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() for any device in the same group.
 379
 380   The IDE controller driver will use controller- and possibly platform-specific
 381   algorithms to arrive at SupportedModes.  The IDE controller may base its
 382   decision on user preferences and other considerations as well. This function
 383   may be called multiple times because the driver entity may renegotiate the mode
 384   with the IDE controller driver using EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode().
 385
 386   The driver entity may collect timing information for various devices in any
 387   order. The driver entity is responsible for making sure that all the dependencies
 388   are satisfied. For example, the SupportedModes information for device A that
 389   was previously returned may become stale after a call to
 390   EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode() for device B.
 391
 392   The buffer SupportedModes is allocated by the callee because the caller does
 393   not necessarily know the size of the buffer. The type EFI_ATA_COLLECTIVE_MODE
 394   is defined in a way that allows for future extensibility and can be of variable
 395   length. This memory pool should be deallocated by the caller when it is no
 396   longer necessary.
 397
 398   The IDE controller driver for a Serial ATA (SATA) controller can use this
 399   member function to force a lower speed (first-generation [Gen1] speeds on a
 400   second-generation [Gen2]-capable hardware).  The IDE controller driver can
 401   also allow the driver entity to stay with the speed that has been negotiated
 402   by the physical layer.
 403
 404   @param[in]  This                The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 405   @param[in]  Channel             A zero-based channel number.
 406   @param[in]  Device              A zero-based device number on the Channel.
 407   @param[out] SupportedModes      The optimum modes for the device.
 408
 409   @retval EFI_SUCCESS             SupportedModes was returned.
 410   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 411   @retval EFI_INVALID_PARAMETER   Device is invalid.
 412   @retval EFI_INVALID_PARAMETER   SupportedModes is NULL.
 413   @retval EFI_NOT_READY           Modes cannot be calculated due to a lack of
 414                                   data.  This error may happen if
 415                                   EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
 416                                   and EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyData()
 417                                   were not called for at least one drive in the
 418                                   same enumeration group.
 419
 420 **/
 421 EFI_STATUS
 422 EFIAPI
 423 IdeInitCalculateMode (
 424   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL  *This,
 425   IN UINT8                             Channel,
 426   IN UINT8                             Device,
 427   OUT EFI_ATA_COLLECTIVE_MODE          **SupportedModes
 428   );
 429
 430 /**
 431   Commands the IDE controller driver to program the IDE controller hardware
 432   so that the specified device can operate at the specified mode.
 433
 434   This function is used by the driver entity to instruct the IDE controller
 435   driver to program the IDE controller hardware to the specified modes. This
 436   function can be called only once for a particular device. For a Serial ATA
 437   (SATA) Advanced Host Controller Interface (AHCI) controller, no controller-
 438   specific programming may be required.
 439
 440   @param[in] This                 Pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
 441   @param[in] Channel              Zero-based channel number.
 442   @param[in] Device               Zero-based device number on the Channel.
 443   @param[in] Modes                The modes to set.
 444
 445   @retval EFI_SUCCESS             The command was accepted without any errors.
 446   @retval EFI_INVALID_PARAMETER   Channel is invalid (Channel >= ChannelCount).
 447   @retval EFI_INVALID_PARAMETER   Device is invalid.
 448   @retval EFI_NOT_READY           Modes cannot be set at this time due to lack of data.
 449   @retval EFI_DEVICE_ERROR        Modes cannot be set due to hardware failure.
 450                                   The driver entity should not use this device.
 451
 452 **/
 453 EFI_STATUS
 454 EFIAPI
 455 IdeInitSetTiming (
 456   IN EFI_IDE_CONTROLLER_INIT_PROTOCOL  *This,
 457   IN UINT8                             Channel,
 458   IN UINT8                             Device,
 459   IN EFI_ATA_COLLECTIVE_MODE           *Modes
 460   );
 461
 462 //
 463 // Forward reference declaration
 464 //
 465
 466 /**
 467   Retrieves a Unicode string that is the user readable name of the UEFI Driver.
 468
 469   @param This           A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
 470   @param Language       A pointer to a three character ISO 639-2 language identifier.
 471                         This is the language of the driver name that that the caller
 472                         is requesting, and it must match one of the languages specified
 473                         in SupportedLanguages.  The number of languages supported by a
 474                         driver is up to the driver writer.
 475   @param DriverName     A pointer to the Unicode string to return.  This Unicode string
 476                         is the name of the driver specified by This in the language
 477                         specified by Language.
 478
 479   @retval EFI_SUCCESS           The Unicode string for the Driver specified by This
 480                                 and the language specified by Language was returned
 481                                 in DriverName.
 482   @retval EFI_INVALID_PARAMETER Language is NULL.
 483   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 484   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
 485                                 language specified by Language.
 486 **/
 487 EFI_STATUS
 488 EFIAPI
 489 SataControllerComponentNameGetDriverName (
 490   IN EFI_COMPONENT_NAME_PROTOCOL  *This,
 491   IN CHAR8                        *Language,
 492   OUT CHAR16                      **DriverName
 493   );
 494
 495 /**
 496   Retrieves a Unicode string that is the user readable name of the controller
 497   that is being managed by an UEFI Driver.
 498
 499   @param This                   A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
 500   @param ControllerHandle       The handle of a controller that the driver specified by
 501                                 This is managing.  This handle specifies the controller
 502                                 whose name is to be returned.
 503   @param OPTIONAL   ChildHandle The handle of the child controller to retrieve the name
 504                                 of.  This is an optional parameter that may be NULL.  It
 505                                 will be NULL for device drivers.  It will also be NULL
 506                                 for a bus drivers that wish to retrieve the name of the
 507                                 bus controller.  It will not be NULL for a bus driver
 508                                 that wishes to retrieve the name of a child controller.
 509   @param Language               A pointer to a three character ISO 639-2 language
 510                                 identifier.  This is the language of the controller name
 511                                 that that the caller is requesting, and it must match one
 512                                 of the languages specified in SupportedLanguages.  The
 513                                 number of languages supported by a driver is up to the
 514                                 driver writer.
 515   @param ControllerName         A pointer to the Unicode string to return.  This Unicode
 516                                 string is the name of the controller specified by
 517                                 ControllerHandle and ChildHandle in the language
 518                                 specified by Language from the point of view of the
 519                                 driver specified by This.
 520
 521   @retval EFI_SUCCESS           The Unicode string for the user readable name in the
 522                                 language specified by Language for the driver
 523                                 specified by This was returned in DriverName.
 524   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 525   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 526                                 EFI_HANDLE.
 527   @retval EFI_INVALID_PARAMETER Language is NULL.
 528   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 529   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 530                                 managing the controller specified by
 531                                 ControllerHandle and ChildHandle.
 532   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
 533                                 language specified by Language.
 534 **/
 535 EFI_STATUS
 536 EFIAPI
 537 SataControllerComponentNameGetControllerName (
 538   IN EFI_COMPONENT_NAME_PROTOCOL  *This,
 539   IN EFI_HANDLE                   ControllerHandle,
 540   IN EFI_HANDLE                   ChildHandle OPTIONAL,
 541   IN CHAR8                        *Language,
 542   OUT CHAR16                      **ControllerName
 543   );
 544
 545 #endif