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sio.c revision 1.1 
      1 /* $NetBSD: sio.c,v 1.1 2000/01/05 08:48:55 nisimura Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tohru Nishimura.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     40 
     41 __KERNEL_RCSID(0, "$NetBSD: sio.c,v 1.1 2000/01/05 08:48:55 nisimura Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/device.h>
     46 
     47 #include <machine/cpu.h>
     48 #include <machine/autoconf.h>
     49 
     50 #include <luna68k/luna68k/isr.h>
     51 #include <luna68k/dev/siovar.h>
     52 
     53 static int  sio_match __P((struct device *, struct cfdata *, void *));
     54 static void sio_attach __P((struct device *, struct device *, void *));
     55 static int  sio_print __P((void *, const char *));
     56 
     57 const struct cfattach sio_ca = {
     58 	sizeof(struct sio_softc), sio_match, sio_attach
     59 };
     60 extern struct cfdriver sio_cd;
     61 
     62 static void nullintr __P((int));
     63 static int xsiointr __P((void *));
     64 
     65 static int
     66 sio_match(parent, cf, aux)
     67 	struct device *parent;
     68 	struct cfdata *cf;
     69 	void *aux;
     70 {
     71 	struct mainbus_attach_args *ma = aux;
     72 
     73 	if (strcmp(ma->ma_name, sio_cd.cd_name))
     74 		return 0;
     75 	if (badaddr((caddr_t)ma->ma_addr, 4))
     76 		return 0;
     77 	return 1;
     78 }
     79 
     80 static void
     81 sio_attach(parent, self, aux)
     82 	struct device *parent, *self;
     83 	void *aux;
     84 {
     85 	struct sio_softc *sc = (void *)self;
     86 	struct mainbus_attach_args *ma = aux;
     87 	struct sio_attach_args sio_args;
     88 	int channel;
     89 	extern int sysconsole; /* console: 0 for ttya, 1 for desktop */
     90 
     91 	printf(": 7201a\n");
     92 
     93 	sc->scp_ctl = (caddr_t)ma->ma_addr;
     94 	sc->scp_intr[0] = sc->scp_intr[1] = nullintr;
     95 	for (channel = 0; channel < 2; channel++) {
     96 		sio_args.channel = channel;
     97 		sio_args.hwflags = (channel == sysconsole);
     98 		config_found(self, (void *)&sio_args, sio_print);
     99 	}
    100 
    101 	isrlink_autovec(xsiointr, sc, ma->ma_ilvl, ISRPRI_TTYNOBUF);
    102 }
    103 
    104 static int
    105 sio_print(aux, name)
    106 	void *aux;
    107 	const char *name;
    108 {
    109 	struct sio_attach_args *args = aux;
    110 
    111 	if (name != NULL)
    112 		printf("%s: ", name);
    113 
    114 	if (args->channel != -1)
    115 		printf(" channel %d", args->channel);
    116 
    117 	return UNCONF;
    118 }
    119 
    120 static int
    121 xsiointr(arg)
    122 	void *arg;
    123 {
    124 	struct sio_softc *sc = arg;
    125 
    126 	(*sc->scp_intr[0])(0); 	/* 0: ttya system serial port */
    127 	(*sc->scp_intr[1])(1);	/* 1: keyboard and mouse */
    128 	return 1;
    129 }
    130 
    131 static void nullintr(v) int v; { }
    132