1 /* $NetBSD: spkr_audio.c,v 1.8 2019/06/21 09:34:30 isaki 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 1.8 2019/06/21 09:34:30 isaki Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/errno.h> 36 #include <sys/device.h> 37 #include <sys/malloc.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/audio_if.h> 45 #include <dev/audio/audiobellvar.h> 46 47 #include <dev/spkrvar.h> 48 #include <dev/spkrio.h> 49 50 static int spkr_audio_probe(device_t, cfdata_t, void *); 51 static void spkr_audio_attach(device_t, device_t, void *); 52 static int spkr_audio_detach(device_t, int); 53 static int spkr_audio_rescan(device_t, const char *, const int *); 54 static void spkr_audio_childdet(device_t, device_t); 55 56 struct spkr_audio_softc { 57 struct spkr_softc sc_spkr; 58 device_t sc_audiodev; 59 }; 60 61 CFATTACH_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 65 static void 66 spkr_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 aprint_debug_dev(self, "%s: %u %d\n", __func__, xhz, ticks); 72 #endif /* SPKRDEBUG */ 73 audiobell(sc->sc_audiodev, xhz, hztoms(ticks), 74 sc->sc_spkr.sc_vol, 0); 75 } 76 77 static void 78 spkr_audio_rest(device_t self, int ticks) 79 { 80 struct spkr_audio_softc *sc = device_private(self); 81 82 #ifdef SPKRDEBUG 83 aprint_debug_dev(self, "%s: %d\n", __func__, ticks); 84 #endif /* SPKRDEBUG */ 85 if (ticks > 0) 86 audiobell(sc->sc_audiodev, 0, hztoms(ticks), 87 sc->sc_spkr.sc_vol, 0); 88 } 89 90 static int 91 spkr_audio_probe(device_t parent, cfdata_t cf, void *aux) 92 { 93 94 return 1; 95 } 96 97 static void 98 spkr_audio_attach(device_t parent, device_t self, void *aux) 99 { 100 struct spkr_audio_softc *sc = device_private(self); 101 102 aprint_naive("\n"); 103 aprint_normal(": PC Speaker (synthesized)\n"); 104 105 sc->sc_audiodev = parent; 106 sc->sc_spkr.sc_vol = 80; 107 108 if (!pmf_device_register(self, NULL, NULL)) 109 aprint_error_dev(self, "couldn't establish power handler\n"); 110 111 spkr_attach(self, spkr_audio_tone, spkr_audio_rest); 112 } 113 114 static int 115 spkr_audio_detach(device_t self, int flags) 116 { 117 int error; 118 119 if ((error = spkr_detach(self, flags)) != 0) 120 return error; 121 122 pmf_device_deregister(self); 123 124 return 0; 125 } 126 127 static int 128 spkr_audio_rescan(device_t self, const char *iattr, const int *locators) 129 { 130 131 return spkr_rescan(self, iattr, locators); 132 } 133 134 static void 135 spkr_audio_childdet(device_t self, device_t child) 136 { 137 138 spkr_childdet(self, child); 139 } 140