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      1 /*	$NetBSD: opti82c700reg.h,v 1.2 2000/07/18 11:07:21 soda 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 82c700 PCI-ISA bridge interrupt
     30  * controller.
     31  */
     32 
     33 #define	FIRESTAR_CFG_INTR_IRQ	0xb0	/* PCI configuration space */
     34 #define	FIRESTAR_CFG_INTR_PIRQ	0xb8	/* PCI configuration space */
     35 
     36 #define	FIRESTAR_PIRQ_NONE	0
     37 #define	FIRESTAR_PIRQ_MASK	0xdffa
     38 #define	FIRESTAR_LEGAL_IRQ(irq)	((irq) >= 0 && (irq) <= 15 &&		\
     39 				 ((1 << (irq)) & FIRESTAR_PIRQ_MASK) != 0)
     40 
     41 #define	FIRESTAR_CFG_PIRQ_MASK	0x0f
     42 
     43 #define	FIRESTAR_TRIGGER_MASK	0x01
     44 #define	FIRESTAR_TRIGGER_SHIFT	4
     45 
     46 /*
     47  * Opti's suggested Link values.
     48  */
     49 #define	FIRESTAR_PIR_REGOFS_MASK	0x07
     50 #define	FIRESTAR_PIR_REGOFS_SHIFT	4
     51 #define	FIRESTAR_PIR_REGOFS(link)					\
     52 	(((link) >> FIRESTAR_PIR_REGOFS_SHIFT) & FIRESTAR_PIR_REGOFS_MASK)
     53 
     54 #define	FIRESTAR_PIR_SELECTSRC_MASK	0x07
     55 #define	FIRESTAR_PIR_SELECTSRC_SHIFT	0
     56 #define	FIRESTAR_PIR_SELECTSRC(link)					\
     57 	(((link) >> FIRESTAR_PIR_SELECTSRC_SHIFT) & FIRESTAR_PIR_SELECTSRC_MASK)
     58 
     59 #define	FIRESTAR_PIR_SELECT_NONE	0
     60 #define	FIRESTAR_PIR_SELECT_IRQ		1
     61 #define	FIRESTAR_PIR_SELECT_PIRQ	2
     62 #define	FIRESTAR_PIR_SELECT_BRIDGE	3
     63 
     64 #define	FIRESTAR_PIR_MAKELINK(src, ofs)					\
     65 	(((src) << FIRESTAR_PIR_SELECTSRC_SHIFT) |			\
     66 	 ((ofs) << FIRESTAR_PIR_REGOFS_SHIFT))
     67