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      1 /*	$NetBSD: opti82c558reg.h,v 1.1 1999/11/17 01:21:20 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 Opti 82c558 PCI-ISA bridge interrupt
     30  * controller.
     31  */
     32 
     33 /*
     34  * PCI IRQ Select Register
     35  */
     36 
     37 #define	VIPER_CFG_PIRQ		0x40	/* PCI configuration space */
     38 
     39 /*
     40  * Trigger setting:
     41  *
     42  *	[1:7]=>5,9,10,11,12,14,15 Edge = 0 Level = 1
     43  */
     44 #define	VIPER_CFG_TRIGGER_SHIFT	16
     45 
     46 #define	VIPER_LEGAL_LINK(link)	((link) >= 0 && (link) <= 3)
     47 
     48 #define	VIPER_PIRQ_MASK		0xde20
     49 #define	VIPER_LEGAL_IRQ(irq)	((irq) >= 0 && (irq) <= 15 &&		\
     50 				 ((1 << (irq)) & VIPER_PIRQ_MASK) != 0)
     51 
     52 #define	VIPER_PIRQ_NONE		0
     53 #define	VIPER_PIRQ_5		1
     54 #define	VIPER_PIRQ_9		2
     55 #define	VIPER_PIRQ_10		3
     56 #define	VIPER_PIRQ_11		4
     57 #define	VIPER_PIRQ_12		5
     58 #define	VIPER_PIRQ_14		6
     59 #define	VIPER_PIRQ_15		7
     60 
     61 #define	VIPER_PIRQ_SELECT_MASK	0x07
     62 #define	VIPER_PIRQ_SELECT_SHIFT	3
     63 
     64 #define	VIPER_PIRQ(reg, x)	(((reg) >> ((x) * VIPER_PIRQ_SELECT_SHIFT)) \
     65 				 & VIPER_PIRQ_SELECT_MASK)
     66