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audk/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.h

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/** @file
This file contains URB request, each request is warpped in a
URB (Usb Request Block).
Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _EFI_EHCI_URB_H_
#define _EFI_EHCI_URB_H_
typedef struct _EHC_QTD EHC_QTD;
typedef struct _EHC_QH EHC_QH;
typedef struct _URB URB;
//
// Transfer types, used in URB to identify the transfer type
//
#define EHC_CTRL_TRANSFER 0x01
#define EHC_BULK_TRANSFER 0x02
#define EHC_INT_TRANSFER_SYNC 0x04
#define EHC_INT_TRANSFER_ASYNC 0x08
#define EHC_QTD_SIG SIGNATURE_32 ('U', 'S', 'B', 'T')
#define EHC_QH_SIG SIGNATURE_32 ('U', 'S', 'B', 'H')
#define EHC_URB_SIG SIGNATURE_32 ('U', 'S', 'B', 'R')
//
// Hardware related bit definitions
//
#define EHC_TYPE_ITD 0x00
#define EHC_TYPE_QH 0x02
#define EHC_TYPE_SITD 0x04
#define EHC_TYPE_FSTN 0x06
#define QH_NAK_RELOAD 3
#define QH_HSHBW_MULTI 1
#define QTD_MAX_ERR 3
#define QTD_PID_OUTPUT 0x00
#define QTD_PID_INPUT 0x01
#define QTD_PID_SETUP 0x02
#define QTD_STAT_DO_OUT 0
#define QTD_STAT_DO_SS 0
#define QTD_STAT_DO_PING 0x01
#define QTD_STAT_DO_CS 0x02
#define QTD_STAT_TRANS_ERR 0x08
#define QTD_STAT_BABBLE_ERR 0x10
#define QTD_STAT_BUFF_ERR 0x20
#define QTD_STAT_HALTED 0x40
#define QTD_STAT_ACTIVE 0x80
#define QTD_STAT_ERR_MASK (QTD_STAT_TRANS_ERR | QTD_STAT_BABBLE_ERR | QTD_STAT_BUFF_ERR)
#define QTD_MAX_BUFFER 4
#define QTD_BUF_LEN 4096
#define QTD_BUF_MASK 0x0FFF
#define QH_MICROFRAME_0 0x01
#define QH_MICROFRAME_1 0x02
#define QH_MICROFRAME_2 0x04
#define QH_MICROFRAME_3 0x08
#define QH_MICROFRAME_4 0x10
#define QH_MICROFRAME_5 0x20
#define QH_MICROFRAME_6 0x40
#define QH_MICROFRAME_7 0x80
#define USB_ERR_SHORT_PACKET 0x200
//
// Fill in the hardware link point: pass in a EHC_QH/QH_HW
// pointer to QH_LINK; A EHC_QTD/QTD_HW pointer to QTD_LINK
//
#define QH_LINK(Addr, Type, Term) \
((UINT32) ((EHC_LOW_32BIT (Addr) & 0xFFFFFFE0) | (Type) | ((Term) ? 1 : 0)))
#define QTD_LINK(Addr, Term) QH_LINK((Addr), 0, (Term))
//
// The defination of EHCI hardware used data structure for
// little endian architecture. The QTD and QH structures
// are required to be 32 bytes aligned. Don't add members
// to the head of the associated software strucuture.
//
#pragma pack(1)
typedef struct {
UINT32 NextQtd;
UINT32 AltNext;
UINT32 Status : 8;
UINT32 Pid : 2;
UINT32 ErrCnt : 2;
UINT32 CurPage : 3;
UINT32 Ioc : 1;
UINT32 TotalBytes : 15;
UINT32 DataToggle : 1;
UINT32 Page[5];
UINT32 PageHigh[5];
} QTD_HW;
typedef struct {
UINT32 HorizonLink;
//
// Endpoint capabilities/Characteristics DWord 1 and DWord 2
//
UINT32 DeviceAddr : 7;
UINT32 Inactive : 1;
UINT32 EpNum : 4;
UINT32 EpSpeed : 2;
UINT32 DtCtrl : 1;
UINT32 ReclaimHead : 1;
UINT32 MaxPacketLen : 11;
UINT32 CtrlEp : 1;
UINT32 NakReload : 4;
UINT32 SMask : 8;
UINT32 CMask : 8;
UINT32 HubAddr : 7;
UINT32 PortNum : 7;
UINT32 Multiplier : 2;
//
// Transaction execution overlay area
//
UINT32 CurQtd;
UINT32 NextQtd;
UINT32 AltQtd;
UINT32 Status : 8;
UINT32 Pid : 2;
UINT32 ErrCnt : 2;
UINT32 CurPage : 3;
UINT32 Ioc : 1;
UINT32 TotalBytes : 15;
UINT32 DataToggle : 1;
UINT32 Page[5];
UINT32 PageHigh[5];
} QH_HW;
#pragma pack()
//
// Endpoint address and its capabilities
//
typedef struct _USB_ENDPOINT {
UINT8 DevAddr;
UINT8 EpAddr; // Endpoint address, no direction encoded in
EFI_USB_DATA_DIRECTION Direction;
UINT8 DevSpeed;
UINTN MaxPacket;
UINT8 HubAddr;
UINT8 HubPort;
UINT8 Toggle; // Data toggle, not used for control transfer
UINTN Type;
UINTN PollRate; // Polling interval used by EHCI
} USB_ENDPOINT;
//
// Software QTD strcture, this is used to manage all the
// QTD generated from a URB. Don't add fields before QtdHw.
//
struct _EHC_QTD {
QTD_HW QtdHw;
UINT32 Signature;
LIST_ENTRY QtdList; // The list of QTDs to one end point
UINT8 *Data; // Buffer of the original data
UINTN DataLen; // Original amount of data in this QTD
};
//
// Software QH structure. All three different transaction types
// supported by UEFI USB, that is the control/bulk/interrupt
// transfers use the queue head and queue token strcuture.
//
// Interrupt QHs are linked to periodic frame list in the reversed
// 2^N tree. Each interrupt QH is linked to the list starting at
// frame 0. There is a dummy interrupt QH linked to each frame as
// a sentinental whose polling interval is 1. Synchronous interrupt
// transfer is linked after this dummy QH.
//
// For control/bulk transfer, only synchronous (in the sense of UEFI)
// transfer is supported. A dummy QH is linked to EHCI AsyncListAddr
// as the reclamation header. New transfer is inserted after this QH.
//
struct _EHC_QH {
QH_HW QhHw;
UINT32 Signature;
EHC_QH *NextQh; // The queue head pointed to by horizontal link
LIST_ENTRY Qtds; // The list of QTDs to this queue head
UINTN Interval;
};
//
// URB (Usb Request Block) contains information for all kinds of
// usb requests.
//
struct _URB {
UINT32 Signature;
LIST_ENTRY UrbList;
//
// Transaction information
//
USB_ENDPOINT Ep;
EFI_USB_DEVICE_REQUEST *Request; // Control transfer only
VOID *RequestPhy; // Address of the mapped request
VOID *RequestMap;
VOID *Data;
UINTN DataLen;
VOID *DataPhy; // Address of the mapped user data
VOID *DataMap;
EFI_ASYNC_USB_TRANSFER_CALLBACK Callback;
VOID *Context;
//
// Schedule data
//
EHC_QH *Qh;
//
// Transaction result
//
UINT32 Result;
UINTN Completed; // completed data length
UINT8 DataToggle;
};
/**
Create a single QTD to hold the data.
@param Ehc The EHCI device.
@param Data The cpu memory address of current data not associated with a QTD.
@param DataPhy The pci bus address of current data not associated with a QTD.
@param DataLen The length of the data.
@param PktId Packet ID to use in the QTD.
@param Toggle Data toggle to use in the QTD.
@param MaxPacket Maximu packet length of the endpoint.
@return Created QTD or NULL if failed to create one.
**/
EHC_QTD *
EhcCreateQtd (
IN USB2_HC_DEV *Ehc,
IN UINT8 *Data,
IN UINT8 *DataPhy,
IN UINTN DataLen,
IN UINT8 PktId,
IN UINT8 Toggle,
IN UINTN MaxPacket
);
/**
Allocate and initialize a EHCI queue head.
@param Ehci The EHCI device.
@param Ep The endpoint to create queue head for.
@return Created queue head or NULL if failed to create one.
**/
EHC_QH *
EhcCreateQh (
IN USB2_HC_DEV *Ehci,
IN USB_ENDPOINT *Ep
);
/**
Free an allocated URB. It is possible for it to be partially inited.
@param Ehc The EHCI device.
@param Urb The URB to free.
**/
VOID
EhcFreeUrb (
IN USB2_HC_DEV *Ehc,
IN URB *Urb
);
/**
Create a new URB and its associated QTD.
@param Ehc The EHCI device.
@param DevAddr The device address.
@param EpAddr Endpoint addrress & its direction.
@param DevSpeed The device speed.
@param Toggle Initial data toggle to use.
@param MaxPacket The max packet length of the endpoint.
@param Hub The transaction translator to use.
@param Type The transaction type.
@param Request The standard USB request for control transfer.
@param Data The user data to transfer.
@param DataLen The length of data buffer.
@param Callback The function to call when data is transferred.
@param Context The context to the callback.
@param Interval The interval for interrupt transfer.
@return Created URB or NULL.
**/
URB *
EhcCreateUrb (
IN USB2_HC_DEV *Ehc,
IN UINT8 DevAddr,
IN UINT8 EpAddr,
IN UINT8 DevSpeed,
IN UINT8 Toggle,
IN UINTN MaxPacket,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Hub,
IN UINTN Type,
IN EFI_USB_DEVICE_REQUEST *Request,
IN VOID *Data,
IN UINTN DataLen,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,
IN VOID *Context,
IN UINTN Interval
);
#endif
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