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CloverBootloader/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
Sergey Isakov 7c0aa811ec initial commit Clover sources 5061 and modules from EDK2 latest with legacy codes from UDK2018 
Signed-off-by: Sergey Isakov <isakov-sl@bk.ru>
2019-09-03 12:58:42 +03:00

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/** @file
Provides some data structure definitions used by the XHCI host controller driver.
Copyright (c) 2011 - 2017, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _EFI_XHCI_H_
#define _EFI_XHCI_H_
#include <Uefi.h>
#include <Protocol/Usb2HostController.h>
#include <Protocol/PciIo.h>
#include <Guid/EventGroup.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiLib.h>
#include <Library/DebugLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <IndustryStandard/Pci.h>
typedef struct _USB_XHCI_INSTANCE USB_XHCI_INSTANCE;
typedef struct _USB_DEV_CONTEXT USB_DEV_CONTEXT;
#include "XhciReg.h"
#include "XhciSched.h"
#include "ComponentName.h"
#include "UsbHcMem.h"
//
// The unit is microsecond, setting it as 1us.
//
#define XHC_1_MICROSECOND (1)
//
// The unit is microsecond, setting it as 1ms.
//
#define XHC_1_MILLISECOND (1000)
//
// XHC generic timeout experience values.
// The unit is millisecond, setting it as 10s.
//
#define XHC_GENERIC_TIMEOUT (10 * 1000)
//
// XHC reset timeout experience values.
// The unit is millisecond, setting it as 1s.
//
#define XHC_RESET_TIMEOUT (1000)
//
// TRSTRCY delay requirement in usb 2.0 spec chapter 7.1.7.5.
// The unit is microsecond, setting it as 10ms.
//
#define XHC_RESET_RECOVERY_DELAY (10 * 1000)
//
// XHC async transfer timer interval, set by experience.
// The unit is 100us, takes 1ms as interval.
//
#define XHC_ASYNC_TIMER_INTERVAL EFI_TIMER_PERIOD_MILLISECONDS(1)
//
// XHC raises TPL to TPL_NOTIFY to serialize all its operations
// to protect shared data structures.
//
#define XHC_TPL TPL_NOTIFY
#define CMD_RING_TRB_NUMBER 0x100
#define TR_RING_TRB_NUMBER 0x100
#define ERST_NUMBER 0x01
#define EVENT_RING_TRB_NUMBER 0x200
#define CMD_INTER 0
#define CTRL_INTER 1
#define BULK_INTER 2
#define INT_INTER 3
#define INT_INTER_ASYNC 4
//
// Iterate through the double linked list. This is delete-safe.
// Don't touch NextEntry
//
#define EFI_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \
for (Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink;\
Entry != (ListHead); Entry = NextEntry, NextEntry = Entry->ForwardLink)
#define EFI_LIST_CONTAINER(Entry, Type, Field) BASE_CR(Entry, Type, Field)
#define XHC_LOW_32BIT(Addr64) ((UINT32)(((UINTN)(Addr64)) & 0xFFFFFFFF))
#define XHC_HIGH_32BIT(Addr64) ((UINT32)(RShiftU64((UINT64)(UINTN)(Addr64), 32) & 0xFFFFFFFF))
#define XHC_BIT_IS_SET(Data, Bit) ((BOOLEAN)(((Data) & (Bit)) == (Bit)))
#define XHC_REG_BIT_IS_SET(Xhc, Offset, Bit) \
(XHC_BIT_IS_SET(XhcReadOpReg ((Xhc), (Offset)), (Bit)))
#define XHCI_IS_DATAIN(EndpointAddr) XHC_BIT_IS_SET((EndpointAddr), 0x80)
#define XHCI_INSTANCE_SIG SIGNATURE_32 ('x', 'h', 'c', 'i')
#define XHC_FROM_THIS(a) CR(a, USB_XHCI_INSTANCE, Usb2Hc, XHCI_INSTANCE_SIG)
#define USB_DESC_TYPE_HUB 0x29
#define USB_DESC_TYPE_HUB_SUPER_SPEED 0x2a
//
// The RequestType in EFI_USB_DEVICE_REQUEST is composed of
// three fields: One bit direction, 2 bit type, and 5 bit
// target.
//
#define USB_REQUEST_TYPE(Dir, Type, Target) \
((UINT8)((((Dir) == EfiUsbDataIn ? 0x01 : 0) << 7) | (Type) | (Target)))
//
// Xhci Data and Ctrl Structures
//
#pragma pack(1)
typedef struct {
UINT8 ProgInterface;
UINT8 SubClassCode;
UINT8 BaseCode;
} USB_CLASSC;
typedef struct {
UINT8 Length;
UINT8 DescType;
UINT8 NumPorts;
UINT16 HubCharacter;
UINT8 PwrOn2PwrGood;
UINT8 HubContrCurrent;
UINT8 Filler[16];
} EFI_USB_HUB_DESCRIPTOR;
#pragma pack()
struct _USB_DEV_CONTEXT {
//
// Whether this entry in UsbDevContext array is used or not.
//
BOOLEAN Enabled;
//
// The slot id assigned to the new device through XHCI's Enable_Slot cmd.
//
UINT8 SlotId;
//
// The route string presented an attached usb device.
//
USB_DEV_ROUTE RouteString;
//
// The route string of parent device if it exists. Otherwise it's zero.
//
USB_DEV_ROUTE ParentRouteString;
//
// The actual device address assigned by XHCI through Address_Device command.
//
UINT8 XhciDevAddr;
//
// The requested device address from UsbBus driver through Set_Address standard usb request.
// As XHCI spec replaces this request with Address_Device command, we have to record the
// requested device address and establish a mapping relationship with the actual device address.
// Then UsbBus driver just need to be aware of the requested device address to access usb device
// through EFI_USB2_HC_PROTOCOL. Xhci driver would be responsible for translating it to actual
// device address and access the actual device.
//
UINT8 BusDevAddr;
//
// The pointer to the input device context.
//
VOID *InputContext;
//
// The pointer to the output device context.
//
VOID *OutputContext;
//
// The transfer queue for every endpoint.
//
VOID *EndpointTransferRing[31];
//
// The device descriptor which is stored to support XHCI's Evaluate_Context cmd.
//
EFI_USB_DEVICE_DESCRIPTOR DevDesc;
//
// As a usb device may include multiple configuration descriptors, we dynamically allocate an array
// to store them.
// Note that every configuration descriptor stored here includes those lower level descriptors,
// such as Interface descriptor, Endpoint descriptor, and so on.
// These information is used to support XHCI's Config_Endpoint cmd.
//
EFI_USB_CONFIG_DESCRIPTOR **ConfDesc;
//
// A device has an active Configuration.
//
UINT8 ActiveConfiguration;
//
// Every interface has an active AlternateSetting.
//
UINT8 *ActiveAlternateSetting;
};
struct _USB_XHCI_INSTANCE {
UINT32 Signature;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT64 OriginalPciAttributes;
USBHC_MEM_POOL *MemPool;
EFI_USB2_HC_PROTOCOL Usb2Hc;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
//
// ExitBootServicesEvent is used to set OS semaphore and
// stop the XHC DMA operation after exit boot service.
//
EFI_EVENT ExitBootServiceEvent;
EFI_EVENT PollTimer;
LIST_ENTRY AsyncIntTransfers;
UINT8 CapLength; ///< Capability Register Length
XHC_HCSPARAMS1 HcSParams1; ///< Structural Parameters 1
XHC_HCSPARAMS2 HcSParams2; ///< Structural Parameters 2
XHC_HCCPARAMS HcCParams; ///< Capability Parameters
UINT32 DBOff; ///< Doorbell Offset
UINT32 RTSOff; ///< Runtime Register Space Offset
UINT16 MaxInterrupt;
UINT32 PageSize;
UINT64 *ScratchBuf;
VOID *ScratchMap;
UINT32 MaxScratchpadBufs;
UINT64 *ScratchEntry;
UINTN *ScratchEntryMap;
UINT32 ExtCapRegBase;
UINT32 UsbLegSupOffset;
UINT32 DebugCapSupOffset;
UINT64 *DCBAA;
VOID *DCBAAMap;
UINT32 MaxSlotsEn;
URB *PendingUrb;
//
// Cmd Transfer Ring
//
TRANSFER_RING CmdRing;
//
// EventRing
//
EVENT_RING EventRing;
//
// Misc
//
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
//
// Store device contexts managed by XHCI instance
// The array supports up to 255 devices, entry 0 is reserved and should not be used.
//
USB_DEV_CONTEXT UsbDevContext[256];
BOOLEAN Support64BitDma; // Whether 64 bit DMA may be used with this device
};
extern EFI_DRIVER_BINDING_PROTOCOL gXhciDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gXhciComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gXhciComponentName2;
/**
Test to see if this driver supports ControllerHandle. Any
ControllerHandle that has Usb2HcProtocol installed will
be supported.
@param This Protocol instance pointer.
@param Controller Handle of device to test.
@param RemainingDevicePath Not used.
@return EFI_SUCCESS This driver supports this device.
@return EFI_UNSUPPORTED This driver does not support this device.
**/
EFI_STATUS
EFIAPI
XhcDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Starting the Usb XHCI Driver.
@param This Protocol instance pointer.
@param Controller Handle of device to test.
@param RemainingDevicePath Not used.
@return EFI_SUCCESS supports this device.
@return EFI_UNSUPPORTED do not support this device.
@return EFI_DEVICE_ERROR cannot be started due to device Error.
@return EFI_OUT_OF_RESOURCES cannot allocate resources.
**/
EFI_STATUS
EFIAPI
XhcDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop this driver on ControllerHandle. Support stopping any child handles
created by this driver.
@param This Protocol instance pointer.
@param Controller Handle of device to stop driver on.
@param NumberOfChildren Number of Children in the ChildHandleBuffer.
@param ChildHandleBuffer List of handles for the children we need to stop.
@return EFI_SUCCESS Success.
@return EFI_DEVICE_ERROR Fail.
**/
EFI_STATUS
EFIAPI
XhcDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
/**
Retrieves the capability of root hub ports.
@param This The EFI_USB2_HC_PROTOCOL instance.
@param MaxSpeed Max speed supported by the controller.
@param PortNumber Number of the root hub ports.
@param Is64BitCapable Whether the controller supports 64-bit memory
addressing.
@retval EFI_SUCCESS Host controller capability were retrieved successfully.
@retval EFI_INVALID_PARAMETER Either of the three capability pointer is NULL.
**/
EFI_STATUS
EFIAPI
XhcGetCapability (
IN EFI_USB2_HC_PROTOCOL *This,
OUT UINT8 *MaxSpeed,
OUT UINT8 *PortNumber,
OUT UINT8 *Is64BitCapable
);
/**
Provides software reset for the USB host controller.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param Attributes A bit mask of the reset operation to perform.
@retval EFI_SUCCESS The reset operation succeeded.
@retval EFI_INVALID_PARAMETER Attributes is not valid.
@retval EFI_UNSUPPOURTED The type of reset specified by Attributes is
not currently supported by the host controller.
@retval EFI_DEVICE_ERROR Host controller isn't halted to reset.
**/
EFI_STATUS
EFIAPI
XhcReset (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT16 Attributes
);
/**
Retrieve the current state of the USB host controller.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param State Variable to return the current host controller
state.
@retval EFI_SUCCESS Host controller state was returned in State.
@retval EFI_INVALID_PARAMETER State is NULL.
@retval EFI_DEVICE_ERROR An error was encountered while attempting to
retrieve the host controller's current state.
**/
EFI_STATUS
EFIAPI
XhcGetState (
IN EFI_USB2_HC_PROTOCOL *This,
OUT EFI_USB_HC_STATE *State
);
/**
Sets the USB host controller to a specific state.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param State The state of the host controller that will be set.
@retval EFI_SUCCESS The USB host controller was successfully placed
in the state specified by State.
@retval EFI_INVALID_PARAMETER State is invalid.
@retval EFI_DEVICE_ERROR Failed to set the state due to device error.
**/
EFI_STATUS
EFIAPI
XhcSetState (
IN EFI_USB2_HC_PROTOCOL *This,
IN EFI_USB_HC_STATE State
);
/**
Retrieves the current status of a USB root hub port.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param PortNumber The root hub port to retrieve the state from.
This value is zero-based.
@param PortStatus Variable to receive the port state.
@retval EFI_SUCCESS The status of the USB root hub port specified.
by PortNumber was returned in PortStatus.
@retval EFI_INVALID_PARAMETER PortNumber is invalid.
@retval EFI_DEVICE_ERROR Can't read register.
**/
EFI_STATUS
EFIAPI
XhcGetRootHubPortStatus (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 PortNumber,
OUT EFI_USB_PORT_STATUS *PortStatus
);
/**
Sets a feature for the specified root hub port.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param PortNumber Root hub port to set.
@param PortFeature Feature to set.
@retval EFI_SUCCESS The feature specified by PortFeature was set.
@retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.
@retval EFI_DEVICE_ERROR Can't read register.
**/
EFI_STATUS
EFIAPI
XhcSetRootHubPortFeature (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 PortNumber,
IN EFI_USB_PORT_FEATURE PortFeature
);
/**
Clears a feature for the specified root hub port.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param PortNumber Specifies the root hub port whose feature is
requested to be cleared.
@param PortFeature Indicates the feature selector associated with the
feature clear request.
@retval EFI_SUCCESS The feature specified by PortFeature was cleared
for the USB root hub port specified by PortNumber.
@retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.
@retval EFI_DEVICE_ERROR Can't read register.
**/
EFI_STATUS
EFIAPI
XhcClearRootHubPortFeature (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 PortNumber,
IN EFI_USB_PORT_FEATURE PortFeature
);
/**
Submits control transfer to a target USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress The target device address.
@param DeviceSpeed Target device speed.
@param MaximumPacketLength Maximum packet size the default control transfer
endpoint is capable of sending or receiving.
@param Request USB device request to send.
@param TransferDirection Specifies the data direction for the data stage
@param Data Data buffer to be transmitted or received from USB
device.
@param DataLength The size (in bytes) of the data buffer.
@param Timeout Indicates the maximum timeout, in millisecond.
@param Translator Transaction translator to be used by this device.
@param TransferResult Return the result of this control transfer.
@retval EFI_SUCCESS Transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resources.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_TIMEOUT Transfer failed due to timeout.
@retval EFI_DEVICE_ERROR Transfer failed due to host controller or device error.
**/
EFI_STATUS
EFIAPI
XhcControlTransfer (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN EFI_USB_DEVICE_REQUEST *Request,
IN EFI_USB_DATA_DIRECTION TransferDirection,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN UINTN Timeout,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
/**
Submits bulk transfer to a bulk endpoint of a USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Target device address.
@param EndPointAddress Endpoint number and its direction in bit 7.
@param DeviceSpeed Device speed, Low speed device doesn't support bulk
transfer.
@param MaximumPacketLength Maximum packet size the endpoint is capable of
sending or receiving.
@param DataBuffersNumber Number of data buffers prepared for the transfer.
@param Data Array of pointers to the buffers of data to transmit
from or receive into.
@param DataLength The lenght of the data buffer.
@param DataToggle On input, the initial data toggle for the transfer;
On output, it is updated to to next data toggle to
use of the subsequent bulk transfer.
@param Timeout Indicates the maximum time, in millisecond, which
the transfer is allowed to complete.
@param Translator A pointr to the transaction translator data.
@param TransferResult A pointer to the detailed result information of the
bulk transfer.
@retval EFI_SUCCESS The transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_TIMEOUT The transfer failed due to timeout.
@retval EFI_DEVICE_ERROR The transfer failed due to host controller error.
**/
EFI_STATUS
EFIAPI
XhcBulkTransfer (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN UINT8 DataBuffersNumber,
IN OUT VOID *Data[EFI_USB_MAX_BULK_BUFFER_NUM],
IN OUT UINTN *DataLength,
IN OUT UINT8 *DataToggle,
IN UINTN Timeout,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
/**
Submits an asynchronous interrupt transfer to an
interrupt endpoint of a USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Target device address.
@param EndPointAddress Endpoint number and its direction encoded in bit 7
@param DeviceSpeed Indicates device speed.
@param MaximumPacketLength Maximum packet size the target endpoint is capable
@param IsNewTransfer If TRUE, to submit an new asynchronous interrupt
transfer If FALSE, to remove the specified
asynchronous interrupt.
@param DataToggle On input, the initial data toggle to use; on output,
it is updated to indicate the next data toggle.
@param PollingInterval The he interval, in milliseconds, that the transfer
is polled.
@param DataLength The length of data to receive at the rate specified
by PollingInterval.
@param Translator Transaction translator to use.
@param CallBackFunction Function to call at the rate specified by
PollingInterval.
@param Context Context to CallBackFunction.
@retval EFI_SUCCESS The request has been successfully submitted or canceled.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The request failed due to a lack of resources.
@retval EFI_DEVICE_ERROR The transfer failed due to host controller error.
**/
EFI_STATUS
EFIAPI
XhcAsyncInterruptTransfer (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN BOOLEAN IsNewTransfer,
IN OUT UINT8 *DataToggle,
IN UINTN PollingInterval,
IN UINTN DataLength,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK CallBackFunction,
IN VOID *Context OPTIONAL
);
/**
Submits synchronous interrupt transfer to an interrupt endpoint
of a USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Target device address.
@param EndPointAddress Endpoint number and its direction encoded in bit 7
@param DeviceSpeed Indicates device speed.
@param MaximumPacketLength Maximum packet size the target endpoint is capable
of sending or receiving.
@param Data Buffer of data that will be transmitted to USB
device or received from USB device.
@param DataLength On input, the size, in bytes, of the data buffer; On
output, the number of bytes transferred.
@param DataToggle On input, the initial data toggle to use; on output,
it is updated to indicate the next data toggle.
@param Timeout Maximum time, in second, to complete.
@param Translator Transaction translator to use.
@param TransferResult Variable to receive the transfer result.
@return EFI_SUCCESS The transfer was completed successfully.
@return EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.
@return EFI_INVALID_PARAMETER Some parameters are invalid.
@return EFI_TIMEOUT The transfer failed due to timeout.
@return EFI_DEVICE_ERROR The failed due to host controller or device error
**/
EFI_STATUS
EFIAPI
XhcSyncInterruptTransfer (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN OUT UINT8 *DataToggle,
IN UINTN Timeout,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
/**
Submits isochronous transfer to a target USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Target device address.
@param EndPointAddress End point address with its direction.
@param DeviceSpeed Device speed, Low speed device doesn't support this
type.
@param MaximumPacketLength Maximum packet size that the endpoint is capable of
sending or receiving.
@param DataBuffersNumber Number of data buffers prepared for the transfer.
@param Data Array of pointers to the buffers of data that will
be transmitted to USB device or received from USB
device.
@param DataLength The size, in bytes, of the data buffer.
@param Translator Transaction translator to use.
@param TransferResult Variable to receive the transfer result.
@return EFI_UNSUPPORTED Isochronous transfer is unsupported.
**/
EFI_STATUS
EFIAPI
XhcIsochronousTransfer (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN UINT8 DataBuffersNumber,
IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
IN UINTN DataLength,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
/**
Submits Async isochronous transfer to a target USB device.
@param This This EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Target device address.
@param EndPointAddress End point address with its direction.
@param DeviceSpeed Device speed, Low speed device doesn't support this
type.
@param MaximumPacketLength Maximum packet size that the endpoint is capable of
sending or receiving.
@param DataBuffersNumber Number of data buffers prepared for the transfer.
@param Data Array of pointers to the buffers of data that will
be transmitted to USB device or received from USB
device.
@param DataLength The size, in bytes, of the data buffer.
@param Translator Transaction translator to use.
@param IsochronousCallBack Function to be called when the transfer complete.
@param Context Context passed to the call back function as
parameter.
@return EFI_UNSUPPORTED Isochronous transfer isn't supported.
**/
EFI_STATUS
EFIAPI
XhcAsyncIsochronousTransfer (
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN UINT8 DataBuffersNumber,
IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
IN UINTN DataLength,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,
IN VOID *Context
);
#endif
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