1/* $NetBSD: wsbellmux.c,v 1.1 2017/06/11 03:55:56 nat Exp $ */ 2/*- 3 * Copyright (c) 2017 Nathanial Sloss <nathanialsloss@yahoo.com.au> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__KERNEL_RCSID(0, "$NetBSD: wsbellmux.c,v 1.1 2017/06/11 03:55:56 nat Exp $"); 30 31#include <sys/param.h> 32#include <sys/conf.h> 33#include <sys/types.h> 34#include <sys/device.h> 35#include <sys/errno.h> 36#include <sys/selinfo.h> 37 38#include "wsmux.h" 39 40#include <dev/wscons/wsconsio.h> 41#include <dev/wscons/wsbellvar.h> 42 43/* 44 * Print function (for parent devices). 45 */ 46int 47wsbelldevprint(void *aux, const char *pnp) 48{ 49 50 if (pnp) 51 aprint_normal("wsbell at %s", pnp); 52 return (UNCONF); 53} 54 55#if NWSMUX > 0 56int 57wsbell_add_mux(int unit, struct wsmux_softc *muxsc) 58{ 59 struct wsbell_softc *sc; 60 device_t wsbelldev; 61 cfdriver_t wsbellcd; 62 63 wsbelldev = device_find_by_driver_unit("wsbell", unit); 64 if (wsbelldev == NULL) 65 return ENXIO; 66 wsbellcd = device_cfdriver(wsbelldev); 67 if (wsbellcd == NULL) 68 return ENXIO; 69 70 sc = device_lookup_private(wsbellcd, unit); 71 if (sc == NULL) 72 return ENXIO; 73 74 if (sc->sc_base.me_parent != NULL || sc->sc_base.me_evp != NULL) 75 return (EBUSY); 76 77 return (wsmux_attach_sc(muxsc, &sc->sc_base)); 78} 79#endif 80