1 /* $NetBSD: piixreg.h,v 1.1 1999/11/17 01:21:21 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1999, by UCHIYAMA Yasushi 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the developer may NOT be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Register definitions for the Intel PIIX PCI-ISA bridge interrupt controller. 30 */ 31 32 /* 33 * PIRQ[3:0]# - PIRQ ROUTE CONTROL REGISTERS 34 * 35 * PCI Configuration registers 0x60, 0x61, 0x62, 0x63 36 */ 37 38 #define PIIX_LEGAL_LINK(link) ((link) >= 0 && (link) <= 3) 39 40 #define PIIX_PIRQ_MASK 0xdef8 41 #define PIIX_LEGAL_IRQ(irq) ((irq) >= 0 && (irq) <= 15 && \ 42 ((1 << (irq)) & PIIX_PIRQ_MASK) != 0) 43 44 #define PIIX_CFG_PIRQ 0x60 /* PCI configuration space */ 45 #define PIIX_CFG_PIRQ_NONE 0x80 46 #define PIIX_CFG_PIRQ_MASK 0x0f 47 #define PIIX_PIRQ(reg, x) (((reg) >> ((x) << 3)) & 0xff) 48 49 /* 50 * ELCR - EDGE/LEVEL CONTROL REGISTER 51 * 52 * PCI I/O registers 0x4d0, 0x4d1 53 */ 54 #define PIIX_REG_ELCR 0x4d0 55 #define PIIX_REG_ELCR_SIZE 2 56