!**************************************************************************
!*
!* Boot-ROM-Code to load an operating system across a TCP/IP network.
!*
!* Module:  pci.inc
!* Purpose: Definitions for accessing PCI BIOS functions
!* Entries: None
!*
!**************************************************************************
!*
!* Copyright (C) 2002-2003 Gero Kuhlmann <gero@gkminix.han.de>
!*
!*  This program is free software; you can redistribute it and/or modify
!*  it under the terms of the GNU General Public License as published by
!*  the Free Software Foundation; either version 2 of the License, or
!*  any later version.
!*
!*  This program is distributed in the hope that it will be useful,
!*  but WITHOUT ANY WARRANTY; without even the implied warranty of
!*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
!*  GNU General Public License for more details.
!*
!*  You should have received a copy of the GNU General Public License
!*  along with this program; if not, write to the Free Software
!*  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
!*
!* $Id: pci.inc,v 1.2 2003/01/25 23:29:40 gkminix Exp $
!*

#ifndef _HW_PCI_INC
#define _HW_PCI_INC


!
!**************************************************************************
!
! PCI BIOS functions:
!
PCI_FUNC_INST_CHECK	equ	$B101		! PCI BIOS installation check
PCI_FUNC_FIND_DEV	equ	$B102		! find PCI device
PCI_FUNC_FIND_CLASS	equ	$B103		! find PCI class code
PCI_FUNC_BUS_OP		equ	$B106		! PCI bus-specific operation
PCI_FUNC_READ_BYTE	equ	$B108		! read configuration byte
PCI_FUNC_READ_WORD	equ	$B109		! read configuration word
PCI_FUNC_READ_DWORD	equ	$B10A		! read configuration dword
PCI_FUNC_WRITE_BYTE	equ	$B10B		! write configuration byte
PCI_FUNC_WRITE_WORD	equ	$B10C		! write configuration word
PCI_FUNC_WRITE_DWORD	equ	$B10D		! write configuration dword
PCI_FUNC_GET_IRQ	equ	$B10E		! get IRQ routing table
PCI_FUNC_SET_IRQ	equ	$B10F		! set IRQ routing information


!
!**************************************************************************
!
! PCI register offsets:
!
PCI_REG_VENDOR_ID	equ	$0000		! vendor ID (word)
PCI_REG_DEVICE_ID	equ	$0002		! device ID (word)
PCI_REG_COMMAND		equ	$0004		! command flags (word)
PCI_REG_STATUS		equ	$0006		! status register (word)
PCI_REG_REVISION	equ	$0008		! revision ID (byte)
PCI_REG_CLASS_PROG	equ	$0009		! prog. interface level (byte)
PCI_REG_CLASS_DEVICE	equ	$000A		! device class (word)
PCI_REG_CACHE_SIZE	equ	$000C		! cache line size (byte)
PCI_REG_LATENCY_TIMER	equ	$000D		! latency timer (byte)
PCI_REG_HEADER_TYPE	equ	$000E		! header type (byte)
PCI_REG_BIST		equ	$000F		! self test (byte)
PCI_REG_ADDR_0		equ	$0010		! base addresses (dword)
PCI_REG_ADDR_1		equ	$0014
PCI_REG_ADDR_2		equ	$0018
PCI_REG_ADDR_3		equ	$001C
PCI_REG_ADDR_4		equ	$0020
PCI_REG_ADDR_5		equ	$0024

! Header type 0 (normal devices)

PCI_REG_CARDBUS_CIS	equ	$0028
PCI_REG_SUBSYS_VEND	equ	$002C		! subsystem vendor ID (word)
PCI_REG_SUBSYS_ID	equ	$002E		! subsystem device ID (word)
PCI_REG_ROM_ADDR	equ	$0030		! onboard ROM address (dword)
PCI_REG_CAP_LIST	equ	$0034		! start of capability list
PCI_REG_INT_LINE	equ	$003C		! interrupt line number (byte)
PCI_REG_INT_PIN		equ	$003D		! interrupt pin number (byte)
PCI_REG_MIN_GNT		equ	$003E		! minimum grant time (byte)
PCI_REG_MAX_LAT		equ	$003F		! maximum latency time (byte)


!
!**************************************************************************
!
! Command register bit fields
!
PCI_CMD_IO		equ	%0000000000000001	! enable I/O space
PCI_CMD_MEMORY		equ	%0000000000000010	! enable memory space
PCI_CMD_MASTER		equ	%0000000000000100	! enable bus mastering
PCI_CMD_SPECIAL		equ	%0000000000001000	! enable special cycles
PCI_CMD_INVALIDATE	equ	%0000000000010000	! use memory invalidate
PCI_CMD_VGA_PALETTE	equ	%0000000000100000	! enable palette snoop
PCI_CMD_PARITY		equ	%0000000001000000	! enable parity checking
PCI_CMD_WAIT		equ	%0000000010000000	! enable addr stepping
PCI_CMD_SERR		equ	%0000000100000000	! enable SERR
PCI_CMD_FAST_BACK	equ	%0000001000000000	! enable back-to-back


!
!**************************************************************************
!
! Status register bit fields
!
PCI_STS_CAP_LIST	equ	%0000000000010000	! support capabil. list
PCI_STS_66MHZ		equ	%0000000000100000	! support 66 MHz bus
PCI_STS_UDF		equ	%0000000001000000	! support UDF (obsolete)
PCI_STS_FAST_BACK	equ	%0000000010000000	! support back-to-back
PCI_STS_PARITY		equ	%0000000100000000	! detected parity error
PCI_STS_DEVSEL_MASK	equ	%0000011000000000	! DEVSEL timing bits
PCI_STS_SIG_TARGET	equ	%0000100000000000	! set on target abort
PCI_STS_REC_TARGET	equ	%0001000000000000	! ack of target abort
PCI_STS_SIG_MASTER	equ	%0010000000000000	! set on master abort
PCI_STS_SIG_SYSTEM	equ	%0100000000000000	! set on system error
PCI_STS_DET_PARITY	equ	%1000000000000000	! parity detected


!
!**************************************************************************
!
! PCI network class codes
!
PCI_BASE_NETWORK	equ	$02		! network base class

PCI_CLASS_ETHERNET	equ	$0200
PCI_CLASS_TOKEN_RING	equ	$0201
PCI_CLASS_FDDI		equ	$0202
PCI_CLASS_ATM		equ	$0203
PCI_CLASS_OTHER		equ	$0280


!
!**************************************************************************
!
#endif