OvmfPkg/SataControllerDxe/SataController.h

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