MdePkg/Include/Protocol/Usb2HostController.h

   1 /** @file
   2   EFI_USB2_HC_PROTOCOL as defined in UEFI 2.0.
   3   The USB Host Controller Protocol is used by code, typically USB bus drivers,
   4   running in the EFI boot services environment, to perform data transactions over
   5   a USB bus. In addition, it provides an abstraction for the root hub of the USB bus.
   6
   7   Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
   8   This program and the accompanying materials
   9   are licensed and made available under the terms and conditions of the BSD License
  10   which accompanies this distribution.  The full text of the license may be found at
  11   http://opensource.org/licenses/bsd-license.php
  12
  13   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16 **/
  17
  18 #ifndef _USB2_HOSTCONTROLLER_H_
  19 #define _USB2_HOSTCONTROLLER_H_
  20
  21 #include <Protocol/UsbIo.h>
  22
  23 #define EFI_USB2_HC_PROTOCOL_GUID \
  24   { \
  25     0x3e745226, 0x9818, 0x45b6, {0xa2, 0xac, 0xd7, 0xcd, 0xe, 0x8b, 0xa2, 0xbc } \
  26   }
  27
  28 ///
  29 /// Forward reference for pure ANSI compatability
  30 ///
  31 typedef struct _EFI_USB2_HC_PROTOCOL EFI_USB2_HC_PROTOCOL;
  32
  33
  34 typedef struct {
  35   UINT16          PortStatus;        ///< Contains current port status bitmap.
  36   UINT16          PortChangeStatus;  ///< Contains current port status change bitmap.
  37 } EFI_USB_PORT_STATUS;
  38
  39 ///
  40 /// EFI_USB_PORT_STATUS.PortStatus bit definition
  41 ///
  42 #define USB_PORT_STAT_CONNECTION    0x0001
  43 #define USB_PORT_STAT_ENABLE        0x0002
  44 #define USB_PORT_STAT_SUSPEND       0x0004
  45 #define USB_PORT_STAT_OVERCURRENT   0x0008
  46 #define USB_PORT_STAT_RESET         0x0010
  47 #define USB_PORT_STAT_POWER         0x0100
  48 #define USB_PORT_STAT_LOW_SPEED     0x0200
  49 #define USB_PORT_STAT_HIGH_SPEED    0x0400
  50 #define USB_PORT_STAT_SUPER_SPEED   0x0800
  51 #define USB_PORT_STAT_OWNER         0x2000
  52
  53 ///
  54 /// EFI_USB_PORT_STATUS.PortChangeStatus bit definition
  55 ///
  56 #define USB_PORT_STAT_C_CONNECTION  0x0001
  57 #define USB_PORT_STAT_C_ENABLE      0x0002
  58 #define USB_PORT_STAT_C_SUSPEND     0x0004
  59 #define USB_PORT_STAT_C_OVERCURRENT 0x0008
  60 #define USB_PORT_STAT_C_RESET       0x0010
  61
  62
  63 ///
  64 /// Usb port features value
  65 /// Each value indicates its bit index in the port status and status change bitmaps,
  66 /// if combines these two bitmaps into a 32-bit bitmap.
  67 ///
  68 typedef enum {
  69   EfiUsbPortEnable            = 1,
  70   EfiUsbPortSuspend           = 2,
  71   EfiUsbPortReset             = 4,
  72   EfiUsbPortPower             = 8,
  73   EfiUsbPortOwner             = 13,
  74   EfiUsbPortConnectChange     = 16,
  75   EfiUsbPortEnableChange      = 17,
  76   EfiUsbPortSuspendChange     = 18,
  77   EfiUsbPortOverCurrentChange = 19,
  78   EfiUsbPortResetChange       = 20
  79 } EFI_USB_PORT_FEATURE;
  80
  81 #define EFI_USB_SPEED_FULL      0x0000  ///< 12 Mb/s, USB 1.1 OHCI and UHCI HC.
  82 #define EFI_USB_SPEED_LOW       0x0001  ///< 1 Mb/s, USB 1.1 OHCI and UHCI HC.
  83 #define EFI_USB_SPEED_HIGH      0x0002  ///< 480 Mb/s, USB 2.0 EHCI HC.
  84 #define EFI_USB_SPEED_SUPER     0x0003  ///< 4.8 Gb/s, USB 3.0 XHCI HC.
  85
  86 typedef struct {
  87   UINT8      TranslatorHubAddress; ///< device address
  88   UINT8      TranslatorPortNumber; ///< the port number of the hub that device is connected to.
  89 } EFI_USB2_HC_TRANSACTION_TRANSLATOR;
  90
  91 //
  92 // Protocol definitions
  93 //
  94
  95 /**
  96   Retrieves the Host Controller capabilities.
  97
  98   @param  This           A pointer to the EFI_USB2_HC_PROTOCOL instance.
  99   @param  MaxSpeed       Host controller data transfer speed.
 100   @param  PortNumber     Number of the root hub ports.
 101   @param  Is64BitCapable TRUE if controller supports 64-bit memory addressing,
 102                          FALSE otherwise.
 103
 104   @retval EFI_SUCCESS           The host controller capabilities were retrieved successfully.
 105   @retval EFI_INVALID_PARAMETER One of the input args was NULL.
 106   @retval EFI_DEVICE_ERROR      An error was encountered while attempting to
 107                                 retrieve the capabilities.
 108
 109 **/
 110 typedef
 111 EFI_STATUS
 112 (EFIAPI *EFI_USB2_HC_PROTOCOL_GET_CAPABILITY)(
 113   IN  EFI_USB2_HC_PROTOCOL  *This,
 114   OUT UINT8                 *MaxSpeed,
 115   OUT UINT8                 *PortNumber,
 116   OUT UINT8                 *Is64BitCapable
 117   );
 118
 119 #define EFI_USB_HC_RESET_GLOBAL             0x0001
 120 #define EFI_USB_HC_RESET_HOST_CONTROLLER    0x0002
 121 #define EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG  0x0004
 122 #define EFI_USB_HC_RESET_HOST_WITH_DEBUG    0x0008
 123 /**
 124   Provides software reset for the USB host controller.
 125
 126   @param  This       A pointer to the EFI_USB2_HC_PROTOCOL instance.
 127   @param  Attributes A bit mask of the reset operation to perform.
 128
 129   @retval EFI_SUCCESS           The reset operation succeeded.
 130   @retval EFI_INVALID_PARAMETER Attributes is not valid.
 131   @retval EFI_UNSUPPORTED       The type of reset specified by Attributes is not currently
 132                                 supported by the host controller hardware.
 133   @retval EFI_ACCESS_DENIED     Reset operation is rejected due to the debug port being configured
 134                                 and active; only EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG or
 135                                 EFI_USB_HC_RESET_HOST_WITH_DEBUG reset Attributes can be used to
 136                                 perform reset operation for this host controller.
 137   @retval EFI_DEVICE_ERROR      An error was encountered while attempting to
 138                                 retrieve the capabilities.
 139
 140 **/
 141 typedef
 142 EFI_STATUS
 143 (EFIAPI *EFI_USB2_HC_PROTOCOL_RESET)(
 144   IN EFI_USB2_HC_PROTOCOL   *This,
 145   IN UINT16                 Attributes
 146   );
 147
 148 /**
 149   Enumration value for status of USB HC.
 150 **/
 151 typedef enum {
 152   EfiUsbHcStateHalt,                ///< The host controller is in halt
 153                                     ///< state. No USB transactions can occur
 154                                     ///< while in this state. The host
 155                                     ///< controller can enter this state for
 156                                     ///< three reasons: 1) After host
 157                                     ///< controller hardware reset. 2)
 158                                     ///< Explicitly set by software. 3)
 159                                     ///< Triggered by a fatal error such as
 160                                     ///< consistency check failure.
 161
 162   EfiUsbHcStateOperational,         ///< The host controller is in an
 163                                     ///< operational state. When in
 164                                     ///< this state, the host
 165                                     ///< controller can execute bus
 166                                     ///< traffic. This state must be
 167                                     ///< explicitly set to enable the
 168                                     ///< USB bus traffic.
 169
 170   EfiUsbHcStateSuspend,             ///< The host controller is in the
 171                                     ///< suspend state. No USB
 172                                     ///< transactions can occur while in
 173                                     ///< this state. The host controller
 174                                     ///< enters this state for the
 175                                     ///< following reasons: 1) Explicitly
 176                                     ///< set by software. 2) Triggered
 177                                     ///< when there is no bus traffic for
 178                                     ///< 3 microseconds.
 179
 180   EfiUsbHcStateMaximum              ///< Maximum value for enumration value of HC status.
 181 } EFI_USB_HC_STATE;
 182
 183 /**
 184   Retrieves current state of the USB host controller.
 185
 186   @param  This  A pointer to the EFI_USB2_HC_PROTOCOL instance.
 187   @param  State A pointer to the EFI_USB_HC_STATE data structure that
 188                 indicates current state of the USB host controller.
 189
 190   @retval EFI_SUCCESS           The state information of the host controller was returned in State.
 191   @retval EFI_INVALID_PARAMETER State is NULL.
 192   @retval EFI_DEVICE_ERROR      An error was encountered while attempting to retrieve the
 193                                 host controller's current state.
 194
 195 **/
 196 typedef
 197 EFI_STATUS
 198 (EFIAPI *EFI_USB2_HC_PROTOCOL_GET_STATE)(
 199   IN        EFI_USB2_HC_PROTOCOL    *This,
 200   OUT       EFI_USB_HC_STATE        *State
 201 );
 202
 203 /**
 204   Sets the USB host controller to a specific state.
 205
 206   @param  This  A pointer to the EFI_USB2_HC_PROTOCOL instance.
 207   @param  State Indicates the state of the host controller that will be set.
 208
 209   @retval EFI_SUCCESS           The USB host controller was successfully placed in the state
 210                                 specified by State.
 211   @retval EFI_INVALID_PARAMETER State is not valid.
 212   @retval EFI_DEVICE_ERROR      Failed to set the state specified by State due to device error.
 213
 214 **/
 215 typedef
 216 EFI_STATUS
 217 (EFIAPI *EFI_USB2_HC_PROTOCOL_SET_STATE)(
 218   IN EFI_USB2_HC_PROTOCOL    *This,
 219   IN EFI_USB_HC_STATE        State
 220   );
 221
 222 /**
 223   Submits control transfer to a target USB device.
 224
 225   @param  This                A pointer to the EFI_USB2_HC_PROTOCOL instance.
 226   @param  DeviceAddress       Represents the address of the target device on the USB.
 227   @param  DeviceSpeed         Indicates device speed.
 228   @param  MaximumPacketLength Indicates the maximum packet size that the default control transfer
 229                               endpoint is capable of sending or receiving.
 230   @param  Request             A pointer to the USB device request that will be sent to the USB device.
 231   @param  TransferDirection   Specifies the data direction for the transfer. There are three values
 232                               available, EfiUsbDataIn, EfiUsbDataOut and EfiUsbNoData.
 233   @param  Data                A pointer to the buffer of data that will be transmitted to USB device or
 234                               received from USB device.
 235   @param  DataLength          On input, indicates the size, in bytes, of the data buffer specified by Data.
 236                               On output, indicates the amount of data actually transferred.
 237   @param  TimeOut             Indicates the maximum time, in milliseconds, which the transfer is
 238                               allowed to complete.
 239   @param  Translator          A pointer to the transaction translator data.
 240   @param  TransferResult      A pointer to the detailed result information generated by this control
 241                               transfer.
 242
 243   @retval EFI_SUCCESS           The control transfer was completed successfully.
 244   @retval EFI_INVALID_PARAMETER Some parameters are invalid.
 245   @retval EFI_OUT_OF_RESOURCES  The control transfer could not be completed due to a lack of resources.
 246   @retval EFI_TIMEOUT           The control transfer failed due to timeout.
 247   @retval EFI_DEVICE_ERROR      The control transfer failed due to host controller or device error.
 248                                 Caller should check TransferResult for detailed error information.
 249
 250 **/
 251 typedef
 252 EFI_STATUS
 253 (EFIAPI *EFI_USB2_HC_PROTOCOL_CONTROL_TRANSFER)(
 254   IN     EFI_USB2_HC_PROTOCOL               *This,
 255   IN     UINT8                              DeviceAddress,
 256   IN     UINT8                              DeviceSpeed,
 257   IN     UINTN                              MaximumPacketLength,
 258   IN     EFI_USB_DEVICE_REQUEST             *Request,
 259   IN     EFI_USB_DATA_DIRECTION             TransferDirection,
 260   IN OUT VOID                               *Data       OPTIONAL,
 261   IN OUT UINTN                              *DataLength OPTIONAL,
 262   IN     UINTN                              TimeOut,
 263   IN     EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
 264   OUT    UINT32                             *TransferResult
 265   );
 266
 267 #define EFI_USB_MAX_BULK_BUFFER_NUM 10
 268
 269 /**
 270   Submits bulk transfer to a bulk endpoint of a USB device.
 271
 272   @param  This                A pointer to the EFI_USB2_HC_PROTOCOL instance.
 273   @param  DeviceAddress       Represents the address of the target device on the USB.
 274   @param  EndPointAddress     The combination of an endpoint number and an endpoint direction of the
 275                               target USB device.
 276   @param  DeviceSpeed         Indicates device speed.
 277   @param  MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
 278                               sending or receiving.
 279   @param  DataBuffersNumber   Number of data buffers prepared for the transfer.
 280   @param  Data                Array of pointers to the buffers of data that will be transmitted to USB
 281                               device or received from USB device.
 282   @param  DataLength          When input, indicates the size, in bytes, of the data buffers specified by
 283                               Data. When output, indicates the actually transferred data size.
 284   @param  DataToggle          A pointer to the data toggle value.
 285   @param  TimeOut             Indicates the maximum time, in milliseconds, which the transfer is
 286                               allowed to complete.
 287   @param  Translator          A pointer to the transaction translator data.
 288   @param  TransferResult      A pointer to the detailed result information of the bulk transfer.
 289
 290   @retval EFI_SUCCESS           The bulk transfer was completed successfully.
 291   @retval EFI_INVALID_PARAMETER Some parameters are invalid.
 292   @retval EFI_OUT_OF_RESOURCES  The bulk transfer could not be submitted due to a lack of resources.
 293   @retval EFI_TIMEOUT           The bulk transfer failed due to timeout.
 294   @retval EFI_DEVICE_ERROR      The bulk transfer failed due to host controller or device error.
 295                                 Caller should check TransferResult for detailed error information.
 296
 297 **/
 298 typedef
 299 EFI_STATUS
 300 (EFIAPI *EFI_USB2_HC_PROTOCOL_BULK_TRANSFER)(
 301   IN     EFI_USB2_HC_PROTOCOL               *This,
 302   IN     UINT8                              DeviceAddress,
 303   IN     UINT8                              EndPointAddress,
 304   IN     UINT8                              DeviceSpeed,
 305   IN     UINTN                              MaximumPacketLength,
 306   IN     UINT8                              DataBuffersNumber,
 307   IN OUT VOID                               *Data[EFI_USB_MAX_BULK_BUFFER_NUM],
 308   IN OUT UINTN                              *DataLength,
 309   IN OUT UINT8                              *DataToggle,
 310   IN     UINTN                              TimeOut,
 311   IN     EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
 312   OUT    UINT32                             *TransferResult
 313   );
 314
 315 /**
 316   Submits an asynchronous interrupt transfer to an interrupt endpoint of a USB device.
 317   Translator parameter doesn't exist in UEFI2.0 spec, but it will be updated in the following specification version.
 318
 319   @param  This                A pointer to the EFI_USB2_HC_PROTOCOL instance.
 320   @param  DeviceAddress       Represents the address of the target device on the USB.
 321   @param  EndPointAddress     The combination of an endpoint number and an endpoint direction of the
 322                               target USB device.
 323   @param  DeviceSpeed         Indicates device speed.
 324   @param  MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
 325                               sending or receiving.
 326   @param  IsNewTransfer       If TRUE, an asynchronous interrupt pipe is built between the host and the
 327                               target interrupt endpoint. If FALSE, the specified asynchronous interrupt
 328                               pipe is canceled. If TRUE, and an interrupt transfer exists for the target
 329                               end point, then EFI_INVALID_PARAMETER is returned.
 330   @param  DataToggle          A pointer to the data toggle value.
 331   @param  PollingInterval     Indicates the interval, in milliseconds, that the asynchronous interrupt
 332                               transfer is polled.
 333   @param  DataLength          Indicates the length of data to be received at the rate specified by
 334                               PollingInterval from the target asynchronous interrupt endpoint.
 335   @param  Translator          A pointr to the transaction translator data.
 336   @param  CallBackFunction    The Callback function. This function is called at the rate specified by
 337                               PollingInterval.
 338   @param  Context             The context that is passed to the CallBackFunction. This is an
 339                               optional parameter and may be NULL.
 340
 341   @retval EFI_SUCCESS           The asynchronous interrupt transfer request has been successfully
 342                                 submitted or canceled.
 343   @retval EFI_INVALID_PARAMETER Some parameters are invalid.
 344   @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a lack of resources.
 345
 346 **/
 347 typedef
 348 EFI_STATUS
 349 (EFIAPI *EFI_USB2_HC_PROTOCOL_ASYNC_INTERRUPT_TRANSFER)(
 350   IN     EFI_USB2_HC_PROTOCOL                                *This,
 351   IN     UINT8                                               DeviceAddress,
 352   IN     UINT8                                               EndPointAddress,
 353   IN     UINT8                                               DeviceSpeed,
 354   IN     UINTN                                               MaxiumPacketLength,
 355   IN     BOOLEAN                                             IsNewTransfer,
 356   IN OUT UINT8                                               *DataToggle,
 357   IN     UINTN                                               PollingInterval  OPTIONAL,
 358   IN     UINTN                                               DataLength       OPTIONAL,
 359   IN     EFI_USB2_HC_TRANSACTION_TRANSLATOR                  *Translator      OPTIONAL,
 360   IN     EFI_ASYNC_USB_TRANSFER_CALLBACK                     CallBackFunction OPTIONAL,
 361   IN     VOID                                                *Context         OPTIONAL
 362   );
 363
 364 /**
 365   Submits synchronous interrupt transfer to an interrupt endpoint of a USB device.
 366   Translator parameter doesn't exist in UEFI2.0 spec, but it will be updated in the following specification version.
 367
 368   @param  This                  A pointer to the EFI_USB2_HC_PROTOCOL instance.
 369   @param  DeviceAddress         Represents the address of the target device on the USB.
 370   @param  EndPointAddress       The combination of an endpoint number and an endpoint direction of the
 371                                 target USB device.
 372   @param  DeviceSpeed           Indicates device speed.
 373   @param  MaximumPacketLength   Indicates the maximum packet size the target endpoint is capable of
 374                                 sending or receiving.
 375   @param  Data                  A pointer to the buffer of data that will be transmitted to USB device or
 376                                 received from USB device.
 377   @param  DataLength            On input, the size, in bytes, of the data buffer specified by Data. On
 378                                 output, the number of bytes transferred.
 379   @param  DataToggle            A pointer to the data toggle value.
 380   @param  TimeOut               Indicates the maximum time, in milliseconds, which the transfer is
 381                                 allowed to complete.
 382   @param  Translator            A pointr to the transaction translator data.
 383   @param  TransferResult        A pointer to the detailed result information from the synchronous
 384                                 interrupt transfer.
 385
 386   @retval EFI_SUCCESS           The synchronous interrupt transfer was completed successfully.
 387   @retval EFI_INVALID_PARAMETER Some parameters are invalid.
 388   @retval EFI_OUT_OF_RESOURCES  The synchronous interrupt transfer could not be submitted due to a lack of resources.
 389   @retval EFI_TIMEOUT           The synchronous interrupt transfer failed due to timeout.
 390   @retval EFI_DEVICE_ERROR      The synchronous interrupt transfer failed due to host controller or device error.
 391                                 Caller should check TransferResult for detailed error information.
 392
 393 **/
 394 typedef
 395 EFI_STATUS
 396 (EFIAPI *EFI_USB2_HC_PROTOCOL_SYNC_INTERRUPT_TRANSFER)(
 397   IN     EFI_USB2_HC_PROTOCOL                        *This,
 398   IN     UINT8                                       DeviceAddress,
 399   IN     UINT8                                       EndPointAddress,
 400   IN     UINT8                                       DeviceSpeed,
 401   IN     UINTN                                       MaximumPacketLength,
 402   IN OUT VOID                                        *Data,
 403   IN OUT UINTN                                       *DataLength,
 404   IN OUT UINT8                                       *DataToggle,
 405   IN     UINTN                                       TimeOut,
 406   IN     EFI_USB2_HC_TRANSACTION_TRANSLATOR          *Translator,
 407   OUT    UINT32                                      *TransferResult
 408   );
 409
 410 #define EFI_USB_MAX_ISO_BUFFER_NUM  7
 411 #define EFI_USB_MAX_ISO_BUFFER_NUM1 2
 412
 413 /**
 414   Submits isochronous transfer to an isochronous endpoint of a USB device.
 415
 416   @param  This                  A pointer to the EFI_USB2_HC_PROTOCOL instance.
 417   @param  DeviceAddress         Represents the address of the target device on the USB.
 418   @param  EndPointAddress       The combination of an endpoint number and an endpoint direction of the
 419                                 target USB device.
 420   @param  DeviceSpeed           Indicates device speed.
 421   @param  MaximumPacketLength   Indicates the maximum packet size the target endpoint is capable of
 422                                 sending or receiving.
 423   @param  DataBuffersNumber     Number of data buffers prepared for the transfer.
 424   @param  Data                  Array of pointers to the buffers of data that will be transmitted to USB
 425                                 device or received from USB device.
 426   @param  DataLength            Specifies the length, in bytes, of the data to be sent to or received from
 427                                 the USB device.
 428   @param  Translator            A pointer to the transaction translator data.
 429   @param  TransferResult        A pointer to the detailed result information of the isochronous transfer.
 430
 431   @retval EFI_SUCCESS           The isochronous transfer was completed successfully.
 432   @retval EFI_INVALID_PARAMETER Some parameters are invalid.
 433   @retval EFI_OUT_OF_RESOURCES  The isochronous transfer could not be submitted due to a lack of resources.
 434   @retval EFI_TIMEOUT           The isochronous transfer cannot be completed within the one USB frame time.
 435   @retval EFI_DEVICE_ERROR      The isochronous transfer failed due to host controller or device error.
 436                                 Caller should check TransferResult for detailed error information.
 437
 438 **/
 439 typedef
 440 EFI_STATUS
 441 (EFIAPI *EFI_USB2_HC_PROTOCOL_ISOCHRONOUS_TRANSFER)(
 442   IN     EFI_USB2_HC_PROTOCOL               *This,
 443   IN     UINT8                              DeviceAddress,
 444   IN     UINT8                              EndPointAddress,
 445   IN     UINT8                              DeviceSpeed,
 446   IN     UINTN                              MaximumPacketLength,
 447   IN     UINT8                              DataBuffersNumber,
 448   IN OUT VOID                               *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
 449   IN     UINTN                              DataLength,
 450   IN     EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
 451   OUT    UINT32                             *TransferResult
 452   );
 453
 454 /**
 455   Submits nonblocking isochronous transfer to an isochronous endpoint of a USB device.
 456
 457   @param  This                  A pointer to the EFI_USB2_HC_PROTOCOL instance.
 458   @param  DeviceAddress         Represents the address of the target device on the USB.
 459   @param  EndPointAddress       The combination of an endpoint number and an endpoint direction of the
 460                                 target USB device.
 461   @param  DeviceSpeed           Indicates device speed.
 462   @param  MaximumPacketLength   Indicates the maximum packet size the target endpoint is capable of
 463                                 sending or receiving.
 464   @param  DataBuffersNumber     Number of data buffers prepared for the transfer.
 465   @param  Data                  Array of pointers to the buffers of data that will be transmitted to USB
 466                                 device or received from USB device.
 467   @param  DataLength            Specifies the length, in bytes, of the data to be sent to or received from
 468                                 the USB device.
 469   @param  Translator            A pointer to the transaction translator data.
 470   @param  IsochronousCallback   The Callback function. This function is called if the requested
 471                                 isochronous transfer is completed.
 472   @param  Context               Data passed to the IsochronousCallback function. This is an
 473                                 optional parameter and may be NULL.
 474
 475   @retval EFI_SUCCESS           The asynchronous isochronous transfer request has been successfully
 476                                 submitted or canceled.
 477   @retval EFI_INVALID_PARAMETER Some parameters are invalid.
 478   @retval EFI_OUT_OF_RESOURCES  The asynchronous isochronous transfer could not be submitted due to
 479                                 a lack of resources.
 480
 481 **/
 482 typedef
 483 EFI_STATUS
 484 (EFIAPI *EFI_USB2_HC_PROTOCOL_ASYNC_ISOCHRONOUS_TRANSFER)(
 485   IN     EFI_USB2_HC_PROTOCOL               *This,
 486   IN     UINT8                              DeviceAddress,
 487   IN     UINT8                              EndPointAddress,
 488   IN     UINT8                              DeviceSpeed,
 489   IN     UINTN                              MaximumPacketLength,
 490   IN     UINT8                              DataBuffersNumber,
 491   IN OUT VOID                               *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
 492   IN     UINTN                              DataLength,
 493   IN     EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
 494   IN     EFI_ASYNC_USB_TRANSFER_CALLBACK    IsochronousCallBack,
 495   IN     VOID                               *Context OPTIONAL
 496   );
 497
 498 /**
 499   Retrieves the current status of a USB root hub port.
 500
 501   @param  This       A pointer to the EFI_USB2_HC_PROTOCOL instance.
 502   @param  PortNumber Specifies the root hub port from which the status is to be retrieved.
 503                      This value is zero based.
 504   @param  PortStatus A pointer to the current port status bits and port status change bits.
 505
 506   @retval EFI_SUCCESS           The status of the USB root hub port specified by PortNumber
 507                                 was returned in PortStatus.
 508   @retval EFI_INVALID_PARAMETER PortNumber is invalid.
 509
 510 **/
 511 typedef
 512 EFI_STATUS
 513 (EFIAPI *EFI_USB2_HC_PROTOCOL_GET_ROOTHUB_PORT_STATUS)(
 514   IN        EFI_USB2_HC_PROTOCOL    *This,
 515   IN        UINT8                   PortNumber,
 516   OUT       EFI_USB_PORT_STATUS     *PortStatus
 517   );
 518
 519 /**
 520   Sets a feature for the specified root hub port.
 521
 522   @param  This        A pointer to the EFI_USB2_HC_PROTOCOL instance.
 523   @param  PortNumber  Specifies the root hub port whose feature is requested to be set. This
 524                       value is zero based.
 525   @param  PortFeature Indicates the feature selector associated with the feature set request.
 526
 527   @retval EFI_SUCCESS           The feature specified by PortFeature was set for the USB
 528                                 root hub port specified by PortNumber.
 529   @retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid for this function.
 530
 531 **/
 532 typedef
 533 EFI_STATUS
 534 (EFIAPI *EFI_USB2_HC_PROTOCOL_SET_ROOTHUB_PORT_FEATURE)(
 535   IN EFI_USB2_HC_PROTOCOL    *This,
 536   IN UINT8                   PortNumber,
 537   IN EFI_USB_PORT_FEATURE    PortFeature
 538   );
 539
 540 /**
 541   Clears a feature for the specified root hub port.
 542
 543   @param  This        A pointer to the EFI_USB2_HC_PROTOCOL instance.
 544   @param  PortNumber  Specifies the root hub port whose feature is requested to be cleared. This
 545                       value is zero based.
 546   @param  PortFeature Indicates the feature selector associated with the feature clear request.
 547
 548   @retval EFI_SUCCESS           The feature specified by PortFeature was cleared for the USB
 549                                 root hub port specified by PortNumber.
 550   @retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid for this function.
 551
 552 **/
 553 typedef
 554 EFI_STATUS
 555 (EFIAPI *EFI_USB2_HC_PROTOCOL_CLEAR_ROOTHUB_PORT_FEATURE)(
 556   IN EFI_USB2_HC_PROTOCOL    *This,
 557   IN UINT8                   PortNumber,
 558   IN EFI_USB_PORT_FEATURE    PortFeature
 559   );
 560
 561 ///
 562 /// The EFI_USB2_HC_PROTOCOL provides USB host controller management, basic
 563 /// data transactions over a USB bus, and USB root hub access. A device driver
 564 /// that wishes to manage a USB bus in a system retrieves the EFI_USB2_HC_PROTOCOL
 565 /// instance that is associated with the USB bus to be managed. A device handle
 566 /// for a USB host controller will minimally contain an EFI_DEVICE_PATH_PROTOCOL
 567 /// instance, and an EFI_USB2_HC_PROTOCOL instance.
 568 ///
 569 struct _EFI_USB2_HC_PROTOCOL {
 570   EFI_USB2_HC_PROTOCOL_GET_CAPABILITY              GetCapability;
 571   EFI_USB2_HC_PROTOCOL_RESET                       Reset;
 572   EFI_USB2_HC_PROTOCOL_GET_STATE                   GetState;
 573   EFI_USB2_HC_PROTOCOL_SET_STATE                   SetState;
 574   EFI_USB2_HC_PROTOCOL_CONTROL_TRANSFER            ControlTransfer;
 575   EFI_USB2_HC_PROTOCOL_BULK_TRANSFER               BulkTransfer;
 576   EFI_USB2_HC_PROTOCOL_ASYNC_INTERRUPT_TRANSFER    AsyncInterruptTransfer;
 577   EFI_USB2_HC_PROTOCOL_SYNC_INTERRUPT_TRANSFER     SyncInterruptTransfer;
 578   EFI_USB2_HC_PROTOCOL_ISOCHRONOUS_TRANSFER        IsochronousTransfer;
 579   EFI_USB2_HC_PROTOCOL_ASYNC_ISOCHRONOUS_TRANSFER  AsyncIsochronousTransfer;
 580   EFI_USB2_HC_PROTOCOL_GET_ROOTHUB_PORT_STATUS     GetRootHubPortStatus;
 581   EFI_USB2_HC_PROTOCOL_SET_ROOTHUB_PORT_FEATURE    SetRootHubPortFeature;
 582   EFI_USB2_HC_PROTOCOL_CLEAR_ROOTHUB_PORT_FEATURE  ClearRootHubPortFeature;
 583
 584   ///
 585   /// The major revision number of the USB host controller. The revision information
 586   /// indicates the release of the Universal Serial Bus Specification with which the
 587   /// host controller is compliant.
 588   ///
 589   UINT16                                           MajorRevision;
 590
 591   ///
 592   /// The minor revision number of the USB host controller. The revision information
 593   /// indicates the release of the Universal Serial Bus Specification with which the
 594   /// host controller is compliant.
 595   ///
 596   UINT16                                           MinorRevision;
 597 };
 598
 599 extern EFI_GUID gEfiUsb2HcProtocolGuid;
 600
 601 #endif