/*      $NetBSD: vrc4172gpioreg.h,v 1.2 2001/05/06 14:25:16 takemura Exp $      */

/*
 * Copyright (c) 2000 SATO Kazumi.  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. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 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.
 */

/*
 *      Vrc4172 GPIO (General Purpose I/O) Unit Registers.
 */
#define VRC2_EXGPREG_MAX        0x4a
#define VRC2_EXGP_NPORTS        24
#define VRC2_EXGP_OFFSET        0x40

#define VRC2_EXGPDATA           VRC2_EXGPDATA0
#define VRC2_EXGPDIR            VRC2_EXGPDIR0
#define VRC2_EXGPINTEN          VRC2_EXGPINTEN0
#define VRC2_EXGPINTST          VRC2_EXGPINTST0
#define VRC2_EXGPINTTYP         VRC2_EXGPINTTYP0

#define VRC2_EXGPDATA0          0x00    /* I/O data (0..15) */
#define VRC2_EXGPDIR0           0x02    /* direction (0..15) */
#define VRC2_EXGPINTEN0         0x04    /* interrupt enable (0..15) */
#define VRC2_EXGPINTST0         0x06    /* interrupt status (0..15) */
#define VRC2_EXGPINTTYP0        0x08    /* interrupt type (0..15) */
#define VRC2_EXGPINTLV0L        0x0a    /* interrupt level low (0..15) */
#define VRC2_EXGPINTLV0H        0x0c    /* interrupt level high (0..15) */

#define VRC2_EXGPDATA1          0x40    /* I/O data (16..23) */
#define VRC2_EXGPDIR1           0x42    /* direction (16..23) */
#define VRC2_EXGPINTEN1         0x44    /* interrupt enable (16..23) */
#define VRC2_EXGPINTST1         0x46    /* interrupt status (16..23) */
#define VRC2_EXGPINTTYP1        0x48    /* interrupt type (16..23) */
#define VRC2_EXGPINTLV1L        0x4a    /* interrupt level low (16..23) */

#define VRC2_EXGPINTTYP_EDGE    1
#define VRC2_EXGPINTTYP_LEVEL   0
#define VRC2_EXGPINTAL_HIGH     1
#define VRC2_EXGPINTAL_LOW      0
#define VRC2_EXGPINTHT_HOLD     1
#define VRC2_EXGPINTHT_THROUGH  0

/* end */