1/* $NetBSD: spkr_audio.c,v 1.12 2022/09/24 23:16:02 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 2016 Nathanial Sloss <nathanialsloss@yahoo.com.au> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__KERNEL_RCSID(0, "$NetBSD: spkr_audio.c,v 1.12 2022/09/24 23:16:02 thorpej Exp $"); 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/audioio.h> 35#include <sys/kernel.h> 36#include <sys/errno.h> 37#include <sys/device.h> 38#include <sys/uio.h> 39#include <sys/proc.h> 40#include <sys/ioctl.h> 41#include <sys/conf.h> 42#include <sys/sysctl.h> 43 44#include <dev/audio/audiovar.h> 45#include <dev/audio/audiobellvar.h> 46 47#include <dev/spkrvar.h> 48#include <dev/spkrio.h> 49 50static int spkr_audio_probe(device_t, cfdata_t, void *); 51static void spkr_audio_attach(device_t, device_t, void *); 52static int spkr_audio_detach(device_t, int); 53static int spkr_audio_rescan(device_t, const char *, const int *); 54static void spkr_audio_childdet(device_t, device_t); 55 56struct spkr_audio_softc { 57 struct spkr_softc sc_spkr; 58 device_t sc_audiodev; 59}; 60 61CFATTACH_DECL3_NEW(spkr_audio, sizeof(struct spkr_audio_softc), 62 spkr_audio_probe, spkr_audio_attach, spkr_audio_detach, NULL, 63 spkr_audio_rescan, spkr_audio_childdet, 0); 64 65static void 66spkr_audio_tone(device_t self, u_int xhz, u_int ticks) 67{ 68 struct spkr_audio_softc *sc = device_private(self); 69 70#ifdef SPKRDEBUG 71 device_printf(self, "%s: %u %u\n", __func__, xhz, ticks); 72#endif /* SPKRDEBUG */ 73 74 if (xhz == 0 || ticks == 0) 75 return; 76 77 audiobell(sc->sc_audiodev, xhz, hztoms(ticks), sc->sc_spkr.sc_vol, 0); 78} 79 80static int 81spkr_audio_probe(device_t parent, cfdata_t cf, void *aux) 82{ 83 struct audio_softc *asc = device_private(parent); 84 85 if ((asc->sc_props & AUDIO_PROP_PLAYBACK)) 86 return 1; 87 88 return 0; 89} 90 91static void 92spkr_audio_attach(device_t parent, device_t self, void *aux) 93{ 94 struct spkr_audio_softc *sc = device_private(self); 95 96 aprint_naive("\n"); 97 aprint_normal(": PC Speaker (synthesized)\n"); 98 99 sc->sc_audiodev = parent; 100 sc->sc_spkr.sc_vol = 80; 101 102 if (!pmf_device_register(self, NULL, NULL)) 103 aprint_error_dev(self, "couldn't establish power handler\n"); 104 105 spkr_attach(self, spkr_audio_tone); 106} 107 108static int 109spkr_audio_detach(device_t self, int flags) 110{ 111 int error; 112 113 if ((error = spkr_detach(self, flags)) != 0) 114 return error; 115 116 pmf_device_deregister(self); 117 118 return 0; 119} 120 121static int 122spkr_audio_rescan(device_t self, const char *iattr, const int *locators) 123{ 124 125 return spkr_rescan(self, iattr, locators); 126} 127 128static void 129spkr_audio_childdet(device_t self, device_t child) 130{ 131 132 spkr_childdet(self, child); 133} 134