EdkModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.h

   1 /** @file
   2   Copyright (c) 2006, Intel Corporation
   3   All rights reserved. This program and the accompanying materials
   4   are licensed and made available under the terms and conditions of the BSD License
   5   which accompanies this distribution.  The full text of the license may be found at
   6   http://opensource.org/licenses/bsd-license.php
   7
   8   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   9   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  10
  11   Module Name:  AtapiPassThru.h
  12
  13 **/
  14
  15 #ifndef _APT_H
  16 #define _APT_H
  17
  18
  19 #include <IndustryStandard/pci22.h>
  20
  21 ///
  22 /// bit definition
  23 ///
  24 #define bit(a)        (1 << (a))
  25
  26 #define MAX_TARGET_ID 4
  27
  28 //
  29 // IDE Registers
  30 //
  31 typedef union {
  32   UINT16  Command;        /* when write */
  33   UINT16  Status;         /* when read */
  34 } IDE_CMD_OR_STATUS;
  35
  36 typedef union {
  37   UINT16  Error;          /* when read */
  38   UINT16  Feature;        /* when write */
  39 } IDE_ERROR_OR_FEATURE;
  40
  41 typedef union {
  42   UINT16  AltStatus;      /* when read */
  43   UINT16  DeviceControl;  /* when write */
  44 } IDE_AltStatus_OR_DeviceControl;
  45
  46 ///
  47 /// IDE registers set
  48 ///
  49 typedef struct {
  50   UINT16                          Data;
  51   IDE_ERROR_OR_FEATURE            Reg1;
  52   UINT16                          SectorCount;
  53   UINT16                          SectorNumber;
  54   UINT16                          CylinderLsb;
  55   UINT16                          CylinderMsb;
  56   UINT16                          Head;
  57   IDE_CMD_OR_STATUS               Reg;
  58
  59   IDE_AltStatus_OR_DeviceControl  Alt;
  60   UINT16                          DriveAddress;
  61
  62   UINT16                          MasterSlave;
  63 } IDE_BASE_REGISTERS;
  64
  65 #define ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE  EFI_SIGNATURE_32 ('a', 's', 'p', 't')
  66
  67 typedef struct {
  68   UINTN                       Signature;
  69
  70   EFI_HANDLE                  Handle;
  71   EFI_SCSI_PASS_THRU_PROTOCOL ScsiPassThru;
  72   EFI_SCSI_PASS_THRU_MODE     ScsiPassThruMode;
  73   EFI_PCI_IO_PROTOCOL         *PciIo;
  74
  75   //
  76   // Local Data goes here
  77   //
  78   IDE_BASE_REGISTERS          *IoPort;
  79
  80   CHAR16                      ControllerName[100];
  81   CHAR16                      ChannelName[100];
  82
  83   UINT32                      LatestTargetId;
  84   UINT64                      LatestLun;
  85
  86 } ATAPI_SCSI_PASS_THRU_DEV;
  87
  88 #define ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS(a) \
  89   CR (a, \
  90       ATAPI_SCSI_PASS_THRU_DEV, \
  91       ScsiPassThru, \
  92       ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE \
  93       )
  94
  95 //
  96 // Global Variables
  97 //
  98 extern EFI_DRIVER_BINDING_PROTOCOL  gAtapiScsiPassThruDriverBinding;
  99 extern EFI_COMPONENT_NAME_PROTOCOL  gAtapiScsiPassThruComponentName;
 100
 101 //
 102 // ATAPI Command op code
 103 //
 104 #define OP_INQUIRY                      0x12
 105 #define OP_LOAD_UNLOAD_CD               0xa6
 106 #define OP_MECHANISM_STATUS             0xbd
 107 #define OP_MODE_SELECT_10               0x55
 108 #define OP_MODE_SENSE_10                0x5a
 109 #define OP_PAUSE_RESUME                 0x4b
 110 #define OP_PLAY_AUDIO_10                0x45
 111 #define OP_PLAY_AUDIO_MSF               0x47
 112 #define OP_PLAY_CD                      0xbc
 113 #define OP_PLAY_CD_MSF                  0xb4
 114 #define OP_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
 115 #define OP_READ_10                      0x28
 116 #define OP_READ_12                      0xa8
 117 #define OP_READ_CAPACITY                0x25
 118 #define OP_READ_CD                      0xbe
 119 #define OP_READ_CD_MSF                  0xb9
 120 #define OP_READ_HEADER                  0x44
 121 #define OP_READ_SUB_CHANNEL             0x42
 122 #define OP_READ_TOC                     0x43
 123 #define OP_REQUEST_SENSE                0x03
 124 #define OP_SCAN                         0xba
 125 #define OP_SEEK_10                      0x2b
 126 #define OP_SET_CD_SPEED                 0xbb
 127 #define OP_STOPPLAY_SCAN                0x4e
 128 #define OP_START_STOP_UNIT              0x1b
 129 #define OP_TEST_UNIT_READY              0x00
 130
 131 #define OP_FORMAT_UNIT                  0x04
 132 #define OP_READ_FORMAT_CAPACITIES       0x23
 133 #define OP_VERIFY                       0x2f
 134 #define OP_WRITE_10                     0x2a
 135 #define OP_WRITE_12                     0xaa
 136 #define OP_WRITE_AND_VERIFY             0x2e
 137
 138 //
 139 // ATA Command
 140 //
 141 #define ATAPI_SOFT_RESET_CMD  0x08
 142
 143 typedef enum {
 144   DataIn  = 0,
 145   DataOut = 1,
 146   NoData  = 2,
 147   End     = 0xff
 148 } DATA_DIRECTION;
 149
 150 typedef struct {
 151   UINT8           OpCode;
 152   DATA_DIRECTION  Direction;
 153 } SCSI_COMMAND_SET;
 154
 155 #define MAX_CHANNEL         2
 156
 157 #define ValidCdbLength(Len) ((Len) == 6 || (Len) == 10 || (Len) == 12) ? 1 : 0
 158
 159 //
 160 // IDE registers bit definitions
 161 //
 162 // ATA Err Reg bitmap
 163 //
 164 #define BBK_ERR   bit (7) ///< Bad block detected
 165 #define UNC_ERR   bit (6) ///< Uncorrectable Data
 166 #define MC_ERR    bit (5) ///< Media Change
 167 #define IDNF_ERR  bit (4) ///< ID Not Found
 168 #define MCR_ERR   bit (3) ///< Media Change Requested
 169 #define ABRT_ERR  bit (2) ///< Aborted Command
 170 #define TK0NF_ERR bit (1) ///< Track 0 Not Found
 171 #define AMNF_ERR  bit (0) ///< Address Mark Not Found
 172
 173 //
 174 // ATAPI Err Reg bitmap
 175 //
 176 #define SENSE_KEY_ERR (bit (7) | bit (6) | bit (5) | bit (4))
 177 #define EOM_ERR bit (1) ///< End of Media Detected
 178 #define ILI_ERR bit (0) ///< Illegal Length Indication
 179
 180 //
 181 // Device/Head Reg
 182 //
 183 #define LBA_MODE  bit (6)
 184 #define DEV       bit (4)
 185 #define HS3       bit (3)
 186 #define HS2       bit (2)
 187 #define HS1       bit (1)
 188 #define HS0       bit (0)
 189 #define CHS_MODE  (0)
 190 #define DRV0      (0)
 191 #define DRV1      (1)
 192 #define MST_DRV   DRV0
 193 #define SLV_DRV   DRV1
 194
 195 //
 196 // Status Reg
 197 //
 198 #define BSY   bit (7) ///< Controller Busy
 199 #define DRDY  bit (6) ///< Drive Ready
 200 #define DWF   bit (5) ///< Drive Write Fault
 201 #define DSC   bit (4) ///< Disk Seek Complete
 202 #define DRQ   bit (3) ///< Data Request
 203 #define CORR  bit (2) ///< Corrected Data
 204 #define IDX   bit (1) ///< Index
 205 #define ERR   bit (0) ///< Error
 206 #define CHECK bit (0) ///< Check bit for ATAPI Status Reg
 207
 208 //
 209 // Device Control Reg
 210 //
 211 #define SRST  bit (2) ///< Software Reset
 212 #define IEN_L bit (1) ///< Interrupt Enable
 213
 214 //
 215 // ATAPI Feature Register
 216 //
 217 #define OVERLAP bit (1)
 218 #define DMA     bit (0)
 219
 220 //
 221 // ATAPI Interrupt Reason Reson Reg (ATA Sector Count Register)
 222 //
 223 #define RELEASE     bit (2)
 224 #define IO          bit (1)
 225 #define CoD         bit (0)
 226
 227 #define PACKET_CMD  0xA0
 228
 229 #define DEFAULT_CMD (0xa0)
 230 //
 231 // default content of device control register, disable INT
 232 //
 233 #define DEFAULT_CTL           (0x0a)
 234 #define MAX_ATAPI_BYTE_COUNT  (0xfffe)
 235
 236 //
 237 // function prototype
 238 //
 239
 240 EFI_STATUS
 241 EFIAPI
 242 AtapiScsiPassThruDriverBindingSupported (
 243   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 244   IN EFI_HANDLE                   Controller,
 245   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
 246   );
 247
 248 EFI_STATUS
 249 EFIAPI
 250 AtapiScsiPassThruDriverBindingStart (
 251   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 252   IN EFI_HANDLE                   Controller,
 253   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
 254   );
 255
 256 EFI_STATUS
 257 EFIAPI
 258 AtapiScsiPassThruDriverBindingStop (
 259   IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
 260   IN  EFI_HANDLE                      Controller,
 261   IN  UINTN                           NumberOfChildren,
 262   IN  EFI_HANDLE                      *ChildHandleBuffer
 263   );
 264
 265 //
 266 // EFI Component Name Functions
 267 //
 268 EFI_STATUS
 269 EFIAPI
 270 AtapiScsiPassThruComponentNameGetDriverName (
 271   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 272   IN  CHAR8                        *Language,
 273   OUT CHAR16                       **DriverName
 274   );
 275
 276 EFI_STATUS
 277 EFIAPI
 278 AtapiScsiPassThruComponentNameGetControllerName (
 279   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 280   IN  EFI_HANDLE                                      ControllerHandle,
 281   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 282   IN  CHAR8                                           *Language,
 283   OUT CHAR16                                          **ControllerName
 284   );
 285
 286 /**
 287   AtapiScsiPassThruDriverEntryPoint
 288
 289   @param ImageHandle
 290   @param SystemTable
 291
 292   @todo Add function description
 293   @todo ImageHandle - add argument description
 294   @todo SystemTable - add argument description
 295   @todo add return values
 296 --*/
 297 EFI_STATUS
 298 EFIAPI
 299 AtapiScsiPassThruDriverEntryPoint (
 300   IN EFI_HANDLE         ImageHandle,
 301   IN EFI_SYSTEM_TABLE   *SystemTable
 302   )
 303 ;
 304
 305 /**
 306   RegisterAtapiScsiPassThru
 307
 308   @param  This
 309   @param  Controller
 310   @param  PciIo
 311
 312   @todo Add function description
 313   @todo This add argument description
 314   @todo Controller add argument description
 315   @todo PciIo add argument description
 316   @todo add return values
 317 **/
 318 EFI_STATUS
 319 RegisterAtapiScsiPassThru (
 320   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
 321   IN  EFI_HANDLE                  Controller,
 322   IN  EFI_PCI_IO_PROTOCOL         *PciIo
 323   )
 324 ;
 325
 326 /**
 327   AtapiScsiPassThruFunction
 328
 329   @param  This
 330   @param  Target
 331   @param  Lun
 332   @param  Packet
 333   @param  Event
 334
 335   @todo Add function description
 336   @todo  This - add argument description
 337   @todo  Target - add argument description
 338   @todo  Lun - add argument description
 339   @todo  Packet - add argument description
 340   @todo  Event - add argument description
 341   @todo add return values
 342 **/
 343 EFI_STATUS
 344 EFIAPI
 345 AtapiScsiPassThruFunction (
 346   IN EFI_SCSI_PASS_THRU_PROTOCOL                        *This,
 347   IN UINT32                                             Target,
 348   IN UINT64                                             Lun,
 349   IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET         *Packet,
 350   IN EFI_EVENT                                          Event OPTIONAL
 351   )
 352 ;
 353
 354 /**
 355   AtapiScsiPassThruGetNextDevice
 356
 357   TODO: Add function description
 358
 359   @param  This TODO: add argument description
 360   @param  Target TODO: add argument description
 361   @param  Lun TODO: add argument description
 362
 363   TODO: add return values
 364
 365 **/
 366 EFI_STATUS
 367 EFIAPI
 368 AtapiScsiPassThruGetNextDevice (
 369   IN  EFI_SCSI_PASS_THRU_PROTOCOL    *This,
 370   IN OUT UINT32                      *Target,
 371   IN OUT UINT64                      *Lun
 372   )
 373 ;
 374
 375 /**
 376   AtapiScsiPassThruBuildDevicePath
 377
 378   TODO: Add function description
 379
 380   @param  This TODO: add argument description
 381   @param  Target TODO: add argument description
 382   @param  Lun TODO: add argument description
 383   @param  DevicePath TODO: add argument description
 384
 385   TODO: add return values
 386
 387 **/
 388 EFI_STATUS
 389 EFIAPI
 390 AtapiScsiPassThruBuildDevicePath (
 391   IN     EFI_SCSI_PASS_THRU_PROTOCOL    *This,
 392   IN     UINT32                         Target,
 393   IN     UINT64                         Lun,
 394   IN OUT EFI_DEVICE_PATH_PROTOCOL       **DevicePath
 395   )
 396 ;
 397
 398 /**
 399   AtapiScsiPassThruGetTargetLun
 400
 401   TODO: Add function description
 402
 403   @param  This TODO: add argument description
 404   @param  DevicePath TODO: add argument description
 405   @param  Target TODO: add argument description
 406   @param  Lun TODO: add argument description
 407
 408   TODO: add return values
 409
 410 **/
 411 EFI_STATUS
 412 EFIAPI
 413 AtapiScsiPassThruGetTargetLun (
 414   IN  EFI_SCSI_PASS_THRU_PROTOCOL    *This,
 415   IN  EFI_DEVICE_PATH_PROTOCOL       *DevicePath,
 416   OUT UINT32                         *Target,
 417   OUT UINT64                         *Lun
 418   )
 419 ;
 420
 421 /**
 422   AtapiScsiPassThruResetChannel
 423
 424   TODO: Add function description
 425
 426   @param  This TODO: add argument description
 427
 428   TODO: add return values
 429
 430 **/
 431 EFI_STATUS
 432 EFIAPI
 433 AtapiScsiPassThruResetChannel (
 434   IN  EFI_SCSI_PASS_THRU_PROTOCOL   *This
 435   )
 436 ;
 437
 438 /**
 439   AtapiScsiPassThruResetTarget
 440
 441   TODO: Add function description
 442
 443   @param  This TODO: add argument description
 444   @param  Target TODO: add argument description
 445   @param  Lun TODO: add argument description
 446
 447   TODO: add return values
 448
 449 **/
 450 EFI_STATUS
 451 EFIAPI
 452 AtapiScsiPassThruResetTarget (
 453   IN EFI_SCSI_PASS_THRU_PROTOCOL    *This,
 454   IN UINT32                         Target,
 455   IN UINT64                         Lun
 456   )
 457 ;
 458
 459 /**
 460   CheckSCSIRequestPacket
 461
 462   TODO: Add function description
 463
 464   @param  Packet TODO: add argument description
 465
 466   TODO: add return values
 467
 468 **/
 469 EFI_STATUS
 470 CheckSCSIRequestPacket (
 471   EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET      *Packet
 472   )
 473 ;
 474
 475 /**
 476   SubmitBlockingIoCommand
 477
 478   TODO: Add function description
 479
 480   @param  AtapiScsiPrivate TODO: add argument description
 481   @param  Target TODO: add argument description
 482   @param  Packet TODO: add argument description
 483
 484   TODO: add return values
 485
 486 **/
 487 EFI_STATUS
 488 SubmitBlockingIoCommand (
 489   ATAPI_SCSI_PASS_THRU_DEV                  *AtapiScsiPrivate,
 490   UINT32                                    Target,
 491   EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET    *Packet
 492   )
 493 ;
 494
 495 /**
 496   IsCommandValid
 497
 498   TODO: Add function description
 499
 500   @param Packet  - TODO: add argument description
 501
 502   @return TODO: add return values
 503
 504 --*/
 505 BOOLEAN
 506 IsCommandValid (
 507   EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET   *Packet
 508   )
 509 ;
 510
 511 /**
 512   RequestSenseCommand
 513
 514   TODO: Add function description
 515
 516   @param  AtapiScsiPrivate TODO: add argument description
 517   @param  Target TODO: add argument description
 518   @param  Timeout TODO: add argument description
 519   @param  SenseData TODO: add argument description
 520   @param  SenseDataLength TODO: add argument description
 521
 522   TODO: add return values
 523
 524 **/
 525 EFI_STATUS
 526 RequestSenseCommand (
 527   ATAPI_SCSI_PASS_THRU_DEV    *AtapiScsiPrivate,
 528   UINT32                      Target,
 529   UINT64                      Timeout,
 530   VOID                        *SenseData,
 531   UINT8                       *SenseDataLength
 532   )
 533 ;
 534
 535 /**
 536   AtapiPacketCommand
 537
 538   TODO: Add function description
 539
 540   @param  AtapiScsiPrivate TODO: add argument description
 541   @param  Target TODO: add argument description
 542   @param  PacketCommand TODO: add argument description
 543   @param  Buffer TODO: add argument description
 544   @param  ByteCount TODO: add argument description
 545   @param  Direction TODO: add argument description
 546   @param  TimeOutInMicroSeconds TODO: add argument description
 547
 548   TODO: add return values
 549
 550 **/
 551 EFI_STATUS
 552 AtapiPacketCommand (
 553   ATAPI_SCSI_PASS_THRU_DEV                  *AtapiScsiPrivate,
 554   UINT32                                    Target,
 555   UINT8                                     *PacketCommand,
 556   VOID                                      *Buffer,
 557   UINT32                                    *ByteCount,
 558   DATA_DIRECTION                            Direction,
 559   UINT64                                    TimeOutInMicroSeconds
 560   )
 561 ;
 562
 563
 564 /**
 565   ReadPortB
 566
 567   TODO: Add function description
 568
 569   @param  PciIo TODO: add argument description
 570   @param  Port TODO: add argument description
 571
 572   TODO: add return values
 573
 574 **/
 575 UINT8
 576 ReadPortB (
 577   IN  EFI_PCI_IO_PROTOCOL   *PciIo,
 578   IN  UINT16                Port
 579   )
 580 ;
 581
 582
 583 /**
 584   ReadPortW
 585
 586   TODO: Add function description
 587
 588   @param  PciIo TODO: add argument description
 589   @param  Port TODO: add argument description
 590
 591   TODO: add return values
 592
 593 **/
 594 UINT16
 595 ReadPortW (
 596   IN  EFI_PCI_IO_PROTOCOL   *PciIo,
 597   IN  UINT16                Port
 598   )
 599 ;
 600
 601
 602 /**
 603   WritePortB
 604
 605   TODO: Add function description
 606
 607   @param  PciIo TODO: add argument description
 608   @param  Port TODO: add argument description
 609   @param  Data TODO: add argument description
 610
 611   TODO: add return values
 612
 613 **/
 614 VOID
 615 WritePortB (
 616   IN  EFI_PCI_IO_PROTOCOL   *PciIo,
 617   IN  UINT16                Port,
 618   IN  UINT8                 Data
 619   )
 620 ;
 621
 622
 623 /**
 624   WritePortW
 625
 626   TODO: Add function description
 627
 628   @param  PciIo TODO: add argument description
 629   @param  Port TODO: add argument description
 630   @param  Data TODO: add argument description
 631
 632   TODO: add return values
 633
 634 **/
 635 VOID
 636 WritePortW (
 637   IN  EFI_PCI_IO_PROTOCOL   *PciIo,
 638   IN  UINT16                Port,
 639   IN  UINT16                Data
 640   )
 641 ;
 642
 643 /**
 644   StatusDRQClear
 645
 646   TODO: Add function description
 647
 648   @param  AtapiScsiPrivate TODO: add argument description
 649   @param  TimeOutInMicroSeconds TODO: add argument description
 650
 651   TODO: add return values
 652
 653 **/
 654 EFI_STATUS
 655 StatusDRQClear (
 656   ATAPI_SCSI_PASS_THRU_DEV        *AtapiScsiPrivate,
 657   UINT64                          TimeOutInMicroSeconds
 658   )
 659 ;
 660
 661 /**
 662   AltStatusDRQClear
 663
 664   TODO: Add function description
 665
 666   @param  AtapiScsiPrivate TODO: add argument description
 667   @param  TimeOutInMicroSeconds TODO: add argument description
 668
 669   TODO: add return values
 670
 671 **/
 672 EFI_STATUS
 673 AltStatusDRQClear (
 674   ATAPI_SCSI_PASS_THRU_DEV        *AtapiScsiPrivate,
 675   UINT64                          TimeOutInMicroSeconds
 676   )
 677 ;
 678
 679 /**
 680   StatusDRQReady
 681
 682   TODO: Add function description
 683
 684   @param  AtapiScsiPrivate TODO: add argument description
 685   @param  TimeOutInMicroSeconds TODO: add argument description
 686
 687   TODO: add return values
 688
 689 **/
 690 EFI_STATUS
 691 StatusDRQReady (
 692   ATAPI_SCSI_PASS_THRU_DEV        *AtapiScsiPrivate,
 693   UINT64                          TimeOutInMicroSeconds
 694   )
 695 ;
 696
 697 /**
 698   AltStatusDRQReady
 699
 700   TODO: Add function description
 701
 702   @param  AtapiScsiPrivate TODO: add argument description
 703   @param  TimeOutInMicroSeconds TODO: add argument description
 704
 705   TODO: add return values
 706
 707 **/
 708 EFI_STATUS
 709 AltStatusDRQReady (
 710   ATAPI_SCSI_PASS_THRU_DEV        *AtapiScsiPrivate,
 711   UINT64                          TimeOutInMicroSeconds
 712   )
 713 ;
 714
 715 /**
 716   TODO: Add function description
 717
 718   @param  AtapiScsiPrivate TODO: add argument description
 719   @param  TimeoutInMicroSeconds TODO: add argument description
 720
 721   TODO: add return values
 722
 723 **/
 724 EFI_STATUS
 725 StatusWaitForBSYClear (
 726   ATAPI_SCSI_PASS_THRU_DEV    *AtapiScsiPrivate,
 727   UINT64                      TimeoutInMicroSeconds
 728   )
 729 ;
 730
 731 /**
 732   TODO: Add function description
 733
 734   @param  AtapiScsiPrivate TODO: add argument description
 735   @param  TimeoutInMicroSeconds TODO: add argument description
 736
 737   TODO: add return values
 738
 739 **/
 740 EFI_STATUS
 741 AltStatusWaitForBSYClear (
 742   ATAPI_SCSI_PASS_THRU_DEV    *AtapiScsiPrivate,
 743   UINT64                      TimeoutInMicroSeconds
 744   )
 745 ;
 746
 747 /**
 748   TODO: Add function description
 749
 750   @param  AtapiScsiPrivate TODO: add argument description
 751   @param  TimeoutInMicroSeconds TODO: add argument description
 752
 753   TODO: add return values
 754
 755 **/
 756 EFI_STATUS
 757 StatusDRDYReady (
 758   ATAPI_SCSI_PASS_THRU_DEV    *AtapiScsiPrivate,
 759   UINT64                      TimeoutInMicroSeconds
 760   )
 761 ;
 762
 763 /**
 764   TODO: Add function description
 765
 766   @param  AtapiScsiPrivate TODO: add argument description
 767   @param  TimeoutInMicroSeconds TODO: add argument description
 768
 769   TODO: add return values
 770
 771 **/
 772 EFI_STATUS
 773 AltStatusDRDYReady (
 774   ATAPI_SCSI_PASS_THRU_DEV    *AtapiScsiPrivate,
 775   UINT64                      TimeoutInMicroSeconds
 776   )
 777 ;
 778
 779 /**
 780   TODO: Add function description
 781
 782   @param  AtapiScsiPrivate TODO: add argument description
 783   @param  Buffer TODO: add argument description
 784   @param  ByteCount TODO: add argument description
 785   @param  Direction TODO: add argument description
 786   @param  TimeOutInMicroSeconds TODO: add argument description
 787
 788   TODO: add return values
 789
 790 **/
 791 EFI_STATUS
 792 AtapiPassThruPioReadWriteData (
 793   ATAPI_SCSI_PASS_THRU_DEV  *AtapiScsiPrivate,
 794   UINT16                    *Buffer,
 795   UINT32                    *ByteCount,
 796   DATA_DIRECTION            Direction,
 797   UINT64                    TimeOutInMicroSeconds
 798   )
 799 ;
 800
 801 /**
 802   TODO: Add function description
 803
 804   @param  AtapiScsiPrivate TODO: add argument description
 805
 806   TODO: add return values
 807
 808 **/
 809 EFI_STATUS
 810 AtapiPassThruCheckErrorStatus (
 811   ATAPI_SCSI_PASS_THRU_DEV        *AtapiScsiPrivate
 812   )
 813 ;
 814 #endif