/*      $NetBSD: iris_cons.h,v 1.1 2019/01/12 16:44:47 tsutsui Exp $    */

/*
 * Copyright (c) 2018 Naruaki Etomi
 * 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 ``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 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.
 */

/*
 * Silicon Graphics "IRIS" series MIPS processors machine bootloader.
 */

struct consdev {
        char    *cn_name;       /* console device name */
        int     address;        /* address */
        int     speed;          /* speed(serial only) */
        void    (*cn_probe)     /* probe hardware and fill in consdev info */
                    (struct consdev *);
        void    (*cn_init)      /* turn on as console */
                    (struct consdev *);
        int     (*cn_getc)      /* getchar interface */
                    (void *);
        void    (*cn_putc)      /* putchar interface */
                    (void *, int);
        int     (*cn_scan)      /* scan interface */
                    (void *);
        int     cn_pri;         /* pecking order; the higher the better */
        void    *cn_dev;        /* device data tag */
};

/* values for cn_pri - reflect our policy for console selection */
#define CN_DEAD         0       /* device doesn't exist */
#define CN_NORMAL       1       /* device exists but is nothing special */
#define CN_INTERNAL     2       /* "internal" bit-mapped display */
#define CN_REMOTE       3       /* serial interface with remote bit set */