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      1 /*	$NetBSD: vrc4172gpioreg.h,v 1.2 2001/05/06 14:25:16 takemura Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 SATO Kazumi.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions, and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     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  *	Vrc4172 GPIO (General Purpose I/O) Unit Registers.
     30  */
     31 #define VRC2_EXGPREG_MAX	0x4a
     32 #define VRC2_EXGP_NPORTS	24
     33 #define VRC2_EXGP_OFFSET	0x40
     34 
     35 #define VRC2_EXGPDATA		VRC2_EXGPDATA0
     36 #define VRC2_EXGPDIR		VRC2_EXGPDIR0
     37 #define VRC2_EXGPINTEN		VRC2_EXGPINTEN0
     38 #define VRC2_EXGPINTST		VRC2_EXGPINTST0
     39 #define VRC2_EXGPINTTYP		VRC2_EXGPINTTYP0
     40 
     41 #define VRC2_EXGPDATA0		0x00	/* I/O data (0..15) */
     42 #define VRC2_EXGPDIR0		0x02	/* direction (0..15) */
     43 #define VRC2_EXGPINTEN0		0x04	/* interrupt enable (0..15) */
     44 #define VRC2_EXGPINTST0		0x06	/* interrupt status (0..15) */
     45 #define VRC2_EXGPINTTYP0	0x08	/* interrupt type (0..15) */
     46 #define VRC2_EXGPINTLV0L	0x0a	/* interrupt level low (0..15) */
     47 #define VRC2_EXGPINTLV0H	0x0c	/* interrupt level high (0..15) */
     48 
     49 #define VRC2_EXGPDATA1		0x40	/* I/O data (16..23) */
     50 #define VRC2_EXGPDIR1		0x42	/* direction (16..23) */
     51 #define VRC2_EXGPINTEN1		0x44	/* interrupt enable (16..23) */
     52 #define VRC2_EXGPINTST1		0x46	/* interrupt status (16..23) */
     53 #define VRC2_EXGPINTTYP1	0x48	/* interrupt type (16..23) */
     54 #define VRC2_EXGPINTLV1L	0x4a	/* interrupt level low (16..23) */
     55 
     56 #define VRC2_EXGPINTTYP_EDGE	1
     57 #define VRC2_EXGPINTTYP_LEVEL	0
     58 #define VRC2_EXGPINTAL_HIGH	1
     59 #define VRC2_EXGPINTAL_LOW	0
     60 #define VRC2_EXGPINTHT_HOLD	1
     61 #define VRC2_EXGPINTHT_THROUGH	0
     62 
     63 /* end */
     64