ohci.equ

dos下的ＵＳＢ源码（包括UHCI

	ECHO	-- Including: OHCI.EQU

;***************************************************************************;
;***************************************************************************;
;**                                                                       **;
;**           (C)Copyright 1985-2002, American Megatrends, Inc.           **;
;**                                                                       **;
;**                          All Rights Reserved.                         **;
;**                                                                       **;
;**                6145-F Northbelt Pkwy, Norcross, GA 30071              **;
;**                                                                       **;
;**                          Phone [phone]                         **;
;**                                                                       **;
;***************************************************************************;
;***************************************************************************;
;***************************************************************************;
; $Header: /BIOS/Corebin/800/Modules/USB2/Template/Core/OHCI.EQU 3     3/25/03 5:22p Sivagarn $
;
; $Revision: 3 $
;
; $Date: 3/25/03 5:22p $
;***************************************************************************;
; Revision History
; ----------------
; $Log: /BIOS/Corebin/800/Modules/USB2/Template/Core/OHCI.EQU $
; 
; 3     3/25/03 5:22p Sivagarn
; Added new equates for KBC emulation support
; 
; 2     11/27/02 6:05p Sivagarn
;  - New equates to support port 60h/64h trapping is added
; 
; 1     9/15/02 5:39p Sivagarn
; Initial AMIUSB 2.20 check-in
;
;***************************************************************************;

; Global equates for OHCI
;-------------------------------------------------------------------------
OHCI_FRAME_LIST_SIZE		EQU	32	; Number of DWORDs in interrupt list
MAX_OHCI_BULK_DATA_SIZE		EQU	(4 * 1024)	; 4K

; HCCA - Host Controller Commumications Area
;----------------------------------------------------------------------------
;<AMI_SHDR_START>
;----------------------------------------------------------------------------
; Name:		OHCIHCCA
;
; Description:	OHCI host controller communications area is used by the
;		host controller driver(BIOS) to communicate with the 
;		OHCI based host controller.  This data area should be
;		bus master capable.  Refer OHCI data sheet for more
;		information.
;
; Fields:	 Name		Type		Description
;		------------------------------------------------------------
;		INTERRUPTLIST	ARRAY	32 entries of periodic transfer pointer
;		HCCAFRAMENUMBER	WORD	Current frame number
;		HCCAPAD1	WORD	Reserved
;		HCCADONEHEAD	DWORD	Location where the done head 
;					pointers will be placed
;		RES_HCCA	ARRAY	120 bytes of reserved data
;
;----------------------------------------------------------------------------
;<AMI_SHDR_END>

OHCIHCCA		STRUC
	INTERRUPTLIST		DD	OHCI_FRAME_LIST_SIZE DUP (?)
	HCCAFRAMENUMBER		DW	?
	HCCAPAD1		DW	?
	HCCADONEHEAD		DD	?
	RES_HCCA		DB	120 DUP (?)
OHCIHCCA		ENDS
;----------------------------------------------------------------------------

;<AMI_SHDR_START>
;----------------------------------------------------------------------------
; Name:		OHCIDescriptors
;
; Description:	Descriptors structure is used to hold the host controller
;		instance specific general transfer descriptor and endpoint
;		descriptor pointers.  The following structure defines such 
;		the descriptors for OHCI based host controller instances.
;
; Fields:	 Name		Type		Description
;		------------------------------------------------------------
;		ED1ms		OHCI_ED	ED scheduled in 1ms timeframe
;		ED2ms		OHCI_ED	ED scheduled in 2ms timeframe
;		ED8ms		OHCI_ED	ED scheduled in 8ms timeframe
;		ED32ms		OHCI_ED	ED scheduled in 32ms timeframe
;		TD32ms		OHCI_TD	TD scheduled in 32ms timeframe
;		EDRepeat	OHCI_ED	ED scheduled for keyboard repeat rate generator
;		TDRepeat	OHCI_TD	TD scheduled for keybord repeat rate generator
;               TDRepeat	OHCI_TD TD associated with generation of repeat data
;		EDControl	OHCI_ED	ED associated for control transfer
;               TDControlSetup	OHCI_TD TD associated with control setup
;               TDControlData	OHCI_TD TD associated with control data
;               TDControlStatus OHCI_TD TD associated with control status
;		EDInterrupt	OHCI_ED	ED associated for interrupt transfer
;               TDInterruptData OHCI_TD TD associated to transfer interrupt data
;		EDBulk		OHCI_ED	ED associated for bulk transfer
;		TDBulkData	OHCI_TD	TD associated to transfer bulk data
;
;----------------------------------------------------------------------------
;<AMI_SHDR_END>

OHCIDescriptors		STRUC
	ED1ms			DW	?
	ED2ms			DW	?
	ED8ms			DW	?
; Do not change the following order of ED32ms and TD32ms
	ED32ms			DW	?
	TD32ms			DW	?
; Do not change the following order of EDRepeat and TDRepeat
	EDRepeat		DW	?
	TDRepeat		DW	?
	EDControl		DW	?
	TDControlSetup		DW	?
	TDControlData		DW	?
	TDControlStatus		DW	?
	EDInterrupt		DW	?
	TDInterruptData		DW	?
	EDBulk			DW	?
	TDBulkData		DW	?
OHCIDescriptors		ENDS

USB_OHCI_DESCRIPTOR_SIZE_BLK	EQU	((SIZE OHCIDescriptors + \
					USB_MEM_BLK_SIZE - 1) SHR \
					USB_MEM_BLK_SIZE_SHIFT)


;<AMI_SHDR_START>
;----------------------------------------------------------------------------
; Name:		OHCI_ED
;
; Description:	OHCI Endpoint descriptor structure. This structure is needed
;		for all the USB transaction. This structure had the
;		information regarding the transfer.  Refer to OHCI specification
;		for more information
;
; Fields:	 Name		Type		Description
;		------------------------------------------------------------
;		Control		DWORD	ED control fields (refer OHCI_ED_CONTROL)
;		TailPointer	DWORD	TD queue tail pointer
;		HeadPointer	DWORD	TD queue head pointer
;		LinkPointer	DWORD	Pointer to the next ED
;		Reserved	ARRAY	16 bytes of reserved data
;
;----------------------------------------------------------------------------
;<AMI_SHDR_END>

OHCI_ED		STRUC

	Control			DD	?	; ED control fields
	TailPointer		DD	?	; TD queue tail pointer
	HeadPointer		DD	?	; TD queue head pointer
	LinkPointer		DD	?	; Pointer to next ED
	Reserved		DB	16 dup(?)

OHCI_ED		ENDS

;<AMI_SHDR_START>
;----------------------------------------------------------------------------
; Name:		OHCI_ED_CONTROL
;
; Description:	Bit definition for OHCI_ED control field
;
; Fields:	 Name		Type		Description
;		------------------------------------------------------------
;		FuncAddress	BITS:06-00	USB device address
;		EndpointNum	BITS:10-07	Endpoint number
;		Direction	BITS:12-11	Direction of data flow
;		Speed		BITS:13		Endpoint speed
;		Skip		BITS:14		If set ED will be skipped
;		Format		BITS:15		Set for isochronous endpoint
;		MaxPacketSize	BITS:26-16	Endpoint max packet size
;		Reserved	BITS:31-27	Reserved bits
;
;----------------------------------------------------------------------------
;<AMI_SHDR_END>


; Bit definitions for endpoint descriptor control field
;-------------------------------------------------------------------------
ED_FUNCTION_ADDRESS		EQU	0000007fh
ED_ENDPOINT			EQU	00000780h
ED_DIRECTION			EQU	00001800h
	ED_OUT_PACKET           EQU	00000800h
	ED_IN_PACKET            EQU	00001000h
ED_LOW_SPEED			EQU	00002000h
ED_SKIP_TDQ			EQU	00004000h
ED_FORMAT			EQU	00008000h
ED_MAX_PACK_SIZE		EQU	07ff0000h

; Bit definition for endpoint descriptor direction
;-------------------------------------------------------------------------
ED_DATA_OUT			EQU	01b
ED_DATA_IN			EQU	10b

; Bit definition for endpoint descriptor TD queue tail pointer
;-------------------------------------------------------------------------
ED_HALTED			EQU	00000001h
ED_TOGGLE_CARRY			EQU	00000002h

;Bit define for general pointer
;-------------------------------------------------------------------------
OHCI_TERMINATE			EQU	00000000h

; General Transfer Descriptor (TD) structure
;-------------------------------------------------------------------------
FUNCCALLBACK	PROTO	NEAR C
; Function prototype for TD call back routine
FUNCTDCALLBACK		TYPEDEF	PROTO NEAR C pHCStruc:NEAR, pDevInfo:NEAR,
						pTD:NEAR
PTRFUNCTDCALLBACK	TYPEDEF PTR FUNCTDCALLBACK


;<AMI_SHDR_START>
;----------------------------------------------------------------------------
; Name:		OHCI_TD
;
; Description:	OHCI general transfer descriptor structure. This structure is 
;		used for bulk, interrupt and control transfers. This structure
;		holds the information needed for the transfer like buffer
;		size, address etc.  Refer to OHCI specification for more
;		information.  The last sixteen bytes in the structure (after
;		BufferEnd) is AMIBIOS internal data structure.
;
; Fields:	 Name		Type		Description
;		------------------------------------------------------------
;		ControlStatus	DWORD		Control & status (OHCI_TD_CONTROL)
;		CurrentBufferPointer DWORD	Current buffer pointer
;		LinkPointer	DWORD		Pointer to the next GTD
;		BufferEnd	DWORD		Pointer to the end of the buffer
;		CSReloadValue	DWORD		Copy of control status during scheduling
;		pCallback	NEAR		Pointer to call back function
;		ActiveFlag	BYTE		Non-zero value indicates TD is active
;		DeviceAddress	BYTE		USB device address
;		SetupData	ARRAY		8 byte setup data buffer
;
;----------------------------------------------------------------------------
;<AMI_SHDR_END>

OHCI_TD		STRUC

	ControlStatus		DD	?	; Control and status fields
	CurrentBufferPointer	DD	?	; Current buffer pointer
	LinkPointer		DD	?	; Pointer to the next TD
	BufferEnd		DD	?	; End pointer of data buffer

	CSReloadValue		DD	?	; Reload value for control
	pCallback		PTRFUNCTDCALLBACK	?	; Routine to call on completion
	ActiveFlag		DB	?	; If nonzero, TD is active
	DeviceAddress		DB	?	; Device address
	SetupData		DB	8 dup (?) ; Used for setup packet