1 /* $NetBSD: sio.c,v 1.5 2008/04/28 20:23:26 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 33 34 __KERNEL_RCSID(0, "$NetBSD: sio.c,v 1.5 2008/04/28 20:23:26 martin Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/device.h> 39 40 #include <machine/cpu.h> 41 #include <machine/autoconf.h> 42 43 #include <luna68k/luna68k/isr.h> 44 #include <luna68k/dev/siovar.h> 45 46 static int sio_match __P((struct device *, struct cfdata *, void *)); 47 static void sio_attach __P((struct device *, struct device *, void *)); 48 static int sio_print __P((void *, const char *)); 49 50 CFATTACH_DECL(sio, sizeof(struct sio_softc), 51 sio_match, sio_attach, NULL, NULL); 52 extern struct cfdriver sio_cd; 53 54 static void nullintr __P((int)); 55 static int xsiointr __P((void *)); 56 57 static int 58 sio_match(parent, cf, aux) 59 struct device *parent; 60 struct cfdata *cf; 61 void *aux; 62 { 63 struct mainbus_attach_args *ma = aux; 64 65 if (strcmp(ma->ma_name, sio_cd.cd_name)) 66 return 0; 67 if (badaddr((void *)ma->ma_addr, 4)) 68 return 0; 69 return 1; 70 } 71 72 static void 73 sio_attach(parent, self, aux) 74 struct device *parent, *self; 75 void *aux; 76 { 77 struct sio_softc *sc = (void *)self; 78 struct mainbus_attach_args *ma = aux; 79 struct sio_attach_args sio_args; 80 int channel; 81 extern int sysconsole; /* console: 0 for ttya, 1 for desktop */ 82 83 printf(": 7201a\n"); 84 85 sc->scp_ctl = (void *)ma->ma_addr; 86 sc->scp_intr[0] = sc->scp_intr[1] = nullintr; 87 for (channel = 0; channel < 2; channel++) { 88 sio_args.channel = channel; 89 sio_args.hwflags = (channel == sysconsole); 90 config_found(self, (void *)&sio_args, sio_print); 91 } 92 93 isrlink_autovec(xsiointr, sc, ma->ma_ilvl, ISRPRI_TTYNOBUF); 94 } 95 96 static int 97 sio_print(aux, name) 98 void *aux; 99 const char *name; 100 { 101 struct sio_attach_args *args = aux; 102 103 if (name != NULL) 104 aprint_normal("%s: ", name); 105 106 if (args->channel != -1) 107 aprint_normal(" channel %d", args->channel); 108 109 return UNCONF; 110 } 111 112 static int 113 xsiointr(arg) 114 void *arg; 115 { 116 struct sio_softc *sc = arg; 117 118 (*sc->scp_intr[0])(0); /* 0: ttya system serial port */ 119 (*sc->scp_intr[1])(1); /* 1: keyboard and mouse */ 120 return 1; 121 } 122 123 static void nullintr(v) int v; { } 124