1 /* $NetBSD: midi_pcppi.c,v 1.19 2008/04/28 20:23:52 martin Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss@NetBSD.org). 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> 33 __KERNEL_RCSID(0, "$NetBSD: midi_pcppi.c,v 1.19 2008/04/28 20:23:52 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/errno.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/proc.h> 42 #include <sys/conf.h> 43 #include <sys/select.h> 44 #include <sys/audioio.h> 45 #include <sys/midiio.h> 46 47 #include <sys/bus.h> 48 49 #include <dev/isa/pcppivar.h> 50 51 #include <dev/audio_if.h> 52 #include <dev/midi_if.h> 53 #include <dev/midivar.h> 54 #include <dev/midisynvar.h> 55 56 #define MAX_DURATION 30 /* turn off sound automagically after 30 s */ 57 58 struct midi_pcppi_softc { 59 struct midi_softc sc_mididev; 60 midisyn sc_midisyn; 61 }; 62 63 int midi_pcppi_match(device_t, cfdata_t , void *); 64 void midi_pcppi_attach(device_t, device_t, void *); 65 66 void midi_pcppi_on (midisyn *, uint_fast16_t, midipitch_t, int16_t); 67 void midi_pcppi_off (midisyn *, uint_fast16_t, uint_fast8_t); 68 void midi_pcppi_close(midisyn *); 69 static void midi_pcppi_repitchv(midisyn *, uint_fast16_t, midipitch_t); 70 71 CFATTACH_DECL_NEW(midi_pcppi, sizeof(struct midi_pcppi_softc), 72 midi_pcppi_match, midi_pcppi_attach, NULL, NULL); 73 74 struct midisyn_methods midi_pcppi_hw = { 75 .close = midi_pcppi_close, 76 .attackv = midi_pcppi_on, 77 .releasev = midi_pcppi_off, 78 .repitchv = midi_pcppi_repitchv, 79 }; 80 81 int midi_pcppi_attached = 0; /* Not very nice */ 82 83 int 84 midi_pcppi_match(device_t parent, cfdata_t match, void *aux) 85 { 86 return (!midi_pcppi_attached); 87 } 88 89 void 90 midi_pcppi_attach(device_t parent, device_t self, void *aux) 91 { 92 struct midi_pcppi_softc *sc = device_private(self); 93 struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux; 94 midisyn *ms; 95 96 sc->sc_mididev.dev = self; 97 ms = &sc->sc_midisyn; 98 ms->mets = &midi_pcppi_hw; 99 strcpy(ms->name, "PC speaker"); 100 ms->nvoice = 1; 101 ms->data = pa->pa_cookie; 102 103 midi_pcppi_attached++; 104 105 midisyn_attach(&sc->sc_mididev, ms); 106 midi_attach(&sc->sc_mididev, parent); 107 if (!device_pmf_is_registered(self)) 108 if (!pmf_device_register(self, NULL, NULL)) 109 aprint_error_dev(self, 110 "couldn't establish power handler\n"); 111 } 112 113 void 114 midi_pcppi_on(midisyn *ms, 115 uint_fast16_t voice, midipitch_t mp, int16_t level) 116 { 117 pcppi_tag_t t = ms->data; 118 119 pcppi_bell(t, 120 MIDIHZ18_TO_HZ(MIDIPITCH_TO_HZ18(mp)), 121 MAX_DURATION * hz, 0); 122 } 123 124 void 125 midi_pcppi_off(midisyn *ms, uint_fast16_t voice, uint_fast8_t vel) 126 { 127 pcppi_tag_t t = ms->data; 128 129 /*printf("OFF %p %d\n", t, note >> 16);*/ 130 pcppi_bell(t, 0, 0, 0); 131 } 132 133 void 134 midi_pcppi_close(ms) 135 midisyn *ms; 136 { 137 pcppi_tag_t t = ms->data; 138 139 /* Make sure we are quiet. */ 140 pcppi_bell(t, 0, 0, 0); 141 } 142 143 static void 144 midi_pcppi_repitchv(midisyn *ms, uint_fast16_t voice, midipitch_t newpitch) 145 { 146 midi_pcppi_on(ms, voice, newpitch, 64); 147 } 148