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/* $OpenBSD: rccosb4reg.h,v 1.3 2005/11/23 09:24:57 mickey Exp $ */
/*
* Copyright (c) 2004,2005 Michael Shalayeff
* Copyright (c) 1999, by UCHIYAMA Yasushi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Register definitions for the RCC South Bridge interrupt controller.
*/
#define OSB4_LEGAL_LINK(link) ((link) >= 0 && (link) <= 0x1f)
#define OSB4_PIRQ_MASK 0xdefa
#define OSB4_LEGAL_IRQ(irq) ((irq) > 0 && (irq) <= 15 && \
((1 << (irq)) & OSB4_PIRQ_MASK) != 0)
/*
* PCI Interrupts Address Index Register
*/
#define OSB4_PIAIR 0xc00
#define OSB4_PIRR 0xc01
#define OSB4_PISP 3 /* special lines assumed to route thru ISA */
/*
* ELCR - EDGE/LEVEL CONTROL REGISTER
*
* PCI I/O registers 0x4d0, 0x4d1
*/
#define OSB4_REG_ELCR 0x4d0
#define OSB4_REG_ELCR_SIZE 2
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