ehci.h

来自「EFI BIOS是Intel提出的下一代的BIOS标准。这里上传的Edk源代码是」· C头文件代码 · 共 2,735 行 · 第 1/4 页
2,735 行

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
StartScheduleExecution (
  IN  USB2_HC_DEV     *HcDev
  )
/*++

Routine Description:

  Start Ehc schedule execution

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
ResetEhc (
  IN  USB2_HC_DEV     *HcDev
  )
/*++

Routine Description:

  Reset Ehc

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
ClearEhcAllStatus (
  IN  USB2_HC_DEV     *HcDev
  )
/*++

Routine Description:

  Clear Ehc all status bits

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  EFI_SUCCESS        Success
  EFI_DEVICE_ERROR   Fail

--*/
;

//
// EhciSched Functions
//
EFI_STATUS
InitialPeriodicFrameList (
  IN USB2_HC_DEV      *HcDev,
  IN UINTN            Length
  )
/*++

Routine Description:

  Initialize Periodic Schedule Frame List

Arguments:

  HcDev   - USB2_HC_DEV
  Length  - Frame List Length

Returns:

  EFI_SUCCESS        Success
  EFI_DEVICE_ERROR   Fail

--*/
;

VOID
DeinitialPeriodicFrameList (
  IN  USB2_HC_DEV     *HcDev
  )
/*++

Routine Description:

  Deinitialize Periodic Schedule Frame List

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  VOID

--*/
;

EFI_STATUS
CreatePollingTimer (
  IN  USB2_HC_DEV      *HcDev,
  IN  EFI_EVENT_NOTIFY NotifyFunction
  )
/*++

Routine Description:

  Create Async Request Polling Timer

Arguments:

  HcDev          - USB2_HC_DEV
  NotifyFunction - Timer Notify Function

Returns:

  EFI_SUCCESS        Success
  EFI_DEVICE_ERROR   Fail

--*/
;

EFI_STATUS
DestoryPollingTimer (
  IN  USB2_HC_DEV *HcDev
  )
/*++

Routine Description:

  Destory Async Request Polling Timer

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  EFI_SUCCESS        Success
  EFI_DEVICE_ERROR   Fail

--*/
;

EFI_STATUS
StartPollingTimer (
  IN  USB2_HC_DEV *HcDev
  )
/*++

Routine Description:

  Start Async Request Polling Timer

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  EFI_SUCCESS        Success
  EFI_DEVICE_ERROR   Fail

--*/
;

EFI_STATUS
StopPollingTimer (
  IN  USB2_HC_DEV *HcDev
  )
/*++

Routine Description:

  Stop Async Request Polling Timer

Arguments:

  HcDev - USB2_HC_DEV

Returns:

  EFI_SUCCESS        Success
  EFI_DEVICE_ERROR   Fail

--*/
;

EFI_STATUS
CreateQh (
  IN  USB2_HC_DEV         *HcDev,
  IN  UINT8               DeviceAddr,
  IN  UINT8               Endpoint,
  IN  UINT8               DeviceSpeed,
  IN  UINTN               MaxPacketLen,
  OUT EHCI_QH_ENTITY      **QhPtrPtr
  )
/*++

Routine Description:

  Create Qh Structure and Pre-Initialize

Arguments:

  HcDev          - USB2_HC_DEV
  DeviceAddr     - Address of Device
  Endpoint       - Endpoint Number
  DeviceSpeed    - Device Speed
  MaxPacketLen   - Max Length of one Packet
  QhPtrPtr       - A pointer of pointer to Qh for return

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
CreateControlQh (
  IN  USB2_HC_DEV                       *HcDev,
  IN  UINT8                             DeviceAddr,
  IN  UINT8                             DeviceSpeed,
  IN UINTN                              MaxPacketLen,
  IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
  OUT EHCI_QH_ENTITY                    **QhPtrPtr
  )
/*++

Routine Description:

  Create Qh for Control Transfer

Arguments:

  HcDev         - USB2_HC_DEV
  DeviceAddr    - Address of Device
  DeviceSpeed   - Device Speed
  MaxPacketLen  - Max Length of one Packet
  Translator    - Translator Transaction for SplitX
  QhPtrPtr      - A pointer of pointer to Qh for return

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
CreateBulkQh (
  IN  USB2_HC_DEV                         *HcDev,
  IN  UINT8                               DeviceAddr,
  IN  UINT8                               EndPointAddr,
  IN  UINT8                               DeviceSpeed,
  IN  UINT8                               DataToggle,
  IN  UINTN                               MaxPacketLen,
  IN  EFI_USB2_HC_TRANSACTION_TRANSLATOR  *Translator,
  OUT EHCI_QH_ENTITY                      **QhPtrPtr
  )
/*++

Routine Description:

  Create Qh for Bulk Transfer

Arguments:

  HcDev         - USB2_HC_DEV
  DeviceAddr    - Address of Device
  EndPointAddr  - Address of Endpoint
  DeviceSpeed   - Device Speed
  MaxPacketLen  - Max Length of one Packet
  Translator    - Translator Transaction for SplitX
  QhPtrPtr      - A pointer of pointer to Qh for return

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
CreateInterruptQh (
  IN  USB2_HC_DEV                        *HcDev,
  IN  UINT8                              DeviceAddr,
  IN  UINT8                              EndPointAddr,
  IN  UINT8                              DeviceSpeed,
  IN  UINT8                              DataToggle,
  IN  UINTN                              MaxPacketLen,
  IN  UINTN                              Interval,
  IN  EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
  OUT EHCI_QH_ENTITY                     **QhPtrPtr
  )
/*++

Routine Description:

  Create Qh for Control Transfer

Arguments:

  HcDev        - USB2_HC_DEV
  DeviceAddr   - Address of Device
  EndPointAddr - Address of Endpoint
  DeviceSpeed  - Device Speed
  MaxPacketLen - Max Length of one Packet
  Interval     - value of interval
  Translator   - Translator Transaction for SplitX
  QhPtrPtr     - A pointer of pointer to Qh for return

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

VOID
DestoryQh (
  IN  USB2_HC_DEV        *HcDev,
  IN EHCI_QH_ENTITY      *QhPtr
  )
/*++

Routine Description:

  Destory Qh Structure

Arguments:

  HcDev - USB2_HC_DEV
  QhPtr - A pointer to Qh

Returns:

  VOID

--*/
;

EFI_STATUS
CreateQtd (
  IN  USB2_HC_DEV          *HcDev,
  IN  UINT8                *DataPtr,
  IN  UINTN                DataLen,
  IN  UINT8                PktId,
  IN  UINT8                Toggle,
  IN  UINT8                QtdStatus,
  OUT EHCI_QTD_ENTITY      **QtdPtrPtr
  )
/*++

Routine Description:

  Create Qtd Structure and Pre-Initialize it

Arguments:

  HcDev       - USB2_HC_DEV
  DataPtr     - A pointer to user data buffer to transfer
  DataLen     - Length of user data to transfer
  PktId       - Packet Identification of this Qtd
  Toggle      - Data Toggle of this Qtd
  QtdStatus   - Default value of status of this Qtd
  QtdPtrPtr   - A pointer of pointer to Qtd for return

Returns:

  EFI_SUCCESS            Success
  EFI_OUT_OF_RESOURCES   Cannot allocate resources

--*/
;

EFI_STATUS
CreateSetupQtd (
  IN  USB2_HC_DEV          *HcDev,
  IN  UINT8                *DevReqPtr,
  OUT EHCI_QTD_ENTITY      **QtdPtrPtr
  )
/*++

Routine Description:

  Create Qtd Structure for Setup

Arguments:

  HcDev      - USB2_HC_DEV
  DevReqPtr  - A pointer to Device Request Data
  QtdPtrPtr  - A pointer of pointer to Qtd for return

Returns:

  EFI_SUCCESS            Success
  EFI_OUT_OF_RESOURCES   Cannot allocate resources

--*/
;

EFI_STATUS
CreateDataQtd (
  IN  USB2_HC_DEV           *HcDev,
  IN  UINT8                 *DataPtr,
  IN  UINTN                 DataLen,
  IN  UINT8                 PktId,
  IN  UINT8                 Toggle,
  OUT EHCI_QTD_ENTITY       **QtdPtrPtr
  )
/*++

Routine Description:

  Create Qtd Structure for data

Arguments:

  HcDev       - USB2_HC_DEV
  DataPtr     - A pointer to user data buffer to transfer
  DataLen     - Length of user data to transfer
  PktId       - Packet Identification of this Qtd
  Toggle      - Data Toggle of this Qtd
  QtdPtrPtr   - A pointer of pointer to Qtd for return

Returns:

  EFI_SUCCESS            Success
  EFI_OUT_OF_RESOURCES   Cannot allocate resources

--*/
;

EFI_STATUS
CreateStatusQtd (
  IN  USB2_HC_DEV           *HcDev,
  IN  UINT8                 PktId,
  OUT EHCI_QTD_ENTITY       **QtdPtrPtr
  )
/*++

Routine Description:

  Create Qtd Structure for status

Arguments:

  HcDev       - USB2_HC_DEV
  PktId       - Packet Identification of this Qtd
  QtdPtrPtr   - A pointer of pointer to Qtd for return

Returns:

  EFI_SUCCESS            Success
  EFI_OUT_OF_RESOURCES   Cannot allocate resources

--*/
;

EFI_STATUS
CreateAltQtd (
  IN  USB2_HC_DEV           *HcDev,
  IN  UINT8                 PktId,
  OUT EHCI_QTD_ENTITY       **QtdPtrPtr
  )
/*++

Routine Description:

  Create Qtd Structure for Alternative

Arguments:

  HcDev      - USB2_HC_DEV
  PktId      - Packet Identification of this Qtd
  QtdPtrPtr  - A pointer of pointer to Qtd for return

Returns:

  EFI_SUCCESS            Success
  EFI_OUT_OF_RESOURCES   Cannot allocate resources

--*/
;

EFI_STATUS
CreateControlQtds (
  IN  USB2_HC_DEV                         *HcDev,
  IN UINT8                                DataPktId,
  IN UINT8                                *RequestCursor,
  IN UINT8                                *DataCursor,
  IN UINTN                                DataLen,
  IN  EFI_USB2_HC_TRANSACTION_TRANSLATOR  *Translator,
  OUT EHCI_QTD_ENTITY                     **ControlQtdsHead
  )
/*++

Routine Description:

  Create Qtds list for Control Transfer

Arguments:

  HcDev           - USB2_HC_DEV
  DataPktId       - Packet Identification of Data Qtds
  RequestCursor   - A pointer to request structure buffer to transfer
  DataCursor      - A pointer to user data buffer to transfer
  DataLen         - Length of user data to transfer
  ControlQtdsHead - A pointer of pointer to first Qtd for control tranfer for return

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

EFI_STATUS
CreateBulkOrInterruptQtds (
  IN  USB2_HC_DEV                          *HcDev,
  IN  UINT8                                PktId,
  IN  UINT8                                *DataCursor,
  IN  UINTN                                DataLen,
  IN  EFI_USB2_HC_TRANSACTION_TRANSLATOR   *Translator,
  OUT EHCI_QTD_ENTITY                      **QtdsHead
  )
/*++

Routine Description:

  Create Qtds list for Bulk or Interrupt Transfer

Arguments:

  HcDev        - USB2_HC_DEV
  PktId        - Packet Identification of Qtds
  DataCursor   - A pointer to user data buffer to transfer
  DataLen      - Length of user data to transfer
  DataToggle   - Data Toggle to start
  Translator   - Translator Transaction for SplitX
  QtdsHead     - A pointer of pointer to first Qtd for control tranfer for return

Returns:

  EFI_SUCCESS       Success
  EFI_DEVICE_ERROR  Fail

--*/
;

VOID
DestoryQtds (
  IN USB2_HC_DEV          *HcDev,
  IN EHCI_QTD_ENTITY      *FirstQtdPtr
  )
/*++

Routine Description:

  Destory all Qtds in the list

Arguments:

  HcDev        - USB2_HC_DEV
  FirstQtdPtr  - A pointer to first Qtd in the list

Returns:

  VOID

--*/
;

VOID
LinkQtdToQtd (
  IN EHCI_QTD_ENTITY     *PreQtdPtr,
  IN EHCI_QTD_ENTITY     *QtdPtr
  )
/*++

Routine Description:

  Link Qtds together

Arguments:

  PreQtdPtr  - A pointer to pre Qtd
  QtdPtr     - A pointer to next Qtd

Returns:

  VOID

--*/
;

VOID
LinkQtdsToAltQtd (
  IN EHCI_QTD_ENTITY     *FirstQtdPtr,
  IN EHCI_QTD_ENTITY     *AltQtdPtr
  )
/*++

Routine Description:

  Link AlterQtds together

Arguments:

  FirstQtdPtr - A pointer to first Qtd in the list
  AltQtdPtr - A pointer to alternative Qtd

Returns:
  VOID

--*/
;

VOID
LinkQtdToQh (
  IN EHCI_QH_ENTITY      *QhPtr,
  IN EHCI_QTD_ENTITY     *QtdEntryPtr
  )
/*++

Routine Description:

  Link Qtds list to Qh

Arguments:

  QhPtr   - A pointer to Qh
  QtdPtr  - A pointer to first Qtd in the list

Returns:

  VOID

--*/
;

EFI_STATUS
LinkQhToAsyncList (
  IN  USB2_HC_DEV       *HcDev,
  IN EHCI_QH_ENTITY     *QhPtr
  )
/*++

Routine Description:

  Link Qh to Async Schedule List

Arguments:
ehci.h - 源码说明

本页面展示了「EFI BIOS是Intel提出的下一代的BIOS标准。这里上传的Edk源代码是EFI BIOS源代码中的与平台无关部分的代码」中的 ehci.h 源码文件，采用 C头文件编程语言编写，共 2,735 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。
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