/* $OpenBSD: sio.c,v 1.7 2021/10/24 09:18:51 deraadt Exp $ */ /* $NetBSD: sio.c,v 1.1 2000/01/05 08:48:55 nisimura Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Tohru Nishimura. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* from NetBSD/luna68k dev/sio.c */ #include #include #include #include #include #include #include int sio_match(struct device *, void *, void *); void sio_attach(struct device *, struct device *, void *); int sio_print(void *, const char *); const struct cfattach sio_ca = { sizeof(struct sio_softc), sio_match, sio_attach }; struct cfdriver sio_cd = { NULL, "sio", DV_DULL, }; void nullintr(void *); int xsiointr(void *); int sio_match(struct device *parent, void *cf, void *aux) { struct mainbus_attach_args *ma = aux; if (strcmp(ma->ma_name, sio_cd.cd_name)) return 0; if (badaddr((vaddr_t)ma->ma_addr, 4)) return 0; return 1; } void sio_attach(struct device *parent, struct device *self, void *aux) { struct sio_softc *sc = (void *)self; struct mainbus_attach_args *ma = aux; struct sio_attach_args sio_args; int channel; extern int sysconsole; /* console: 0 for ttya, 1 for desktop */ printf(": 7201a\n"); sc->sc_ctl = (void *)ma->ma_addr; for (channel = 0; channel < 2; channel++) { sc->sc_intrhand[channel].ih_func = nullintr; sio_args.channel = channel; sio_args.hwflags = (channel == sysconsole); config_found(self, (void *)&sio_args, sio_print); } isrlink_autovec(xsiointr, sc, ma->ma_ilvl, ISRPRI_TTYNOBUF, self->dv_xname); } int sio_print(void *aux, const char *name) { struct sio_attach_args *args = aux; if (name != NULL) printf("%s: ", name); if (args->channel != -1) printf(" channel %d", args->channel); return UNCONF; } int xsiointr(void *arg) { struct sio_softc *sc = arg; /* channel 0: ttya system serial port */ (*sc->sc_intrhand[0].ih_func)(sc->sc_intrhand[0].ih_arg); /* channel 1: keyboard and mouse */ (*sc->sc_intrhand[1].ih_func)(sc->sc_intrhand[1].ih_arg); return 1; } void nullintr(void *arg) { }