1 /* $NetBSD: melody.c,v 1.7 2000/01/23 21:06:13 aymeric Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ignatios Souvatzis. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Melody audio driver. 41 * 42 * Currently, only minimum support for audio output. For audio/video 43 * synchronization, more is needed. 44 */ 45 46 #include <sys/types.h> 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/device.h> 51 52 #include <dev/ic/tms320av110reg.h> 53 #include <dev/ic/tms320av110var.h> 54 55 #include <machine/bus.h> 56 57 #include <amiga/dev/zbusvar.h> 58 #include <amiga/amiga/isr.h> 59 60 struct melody_softc { 61 struct tav_softc sc_tav; 62 struct bus_space_tag sc_bst_leftbyte; 63 struct isr sc_isr; 64 caddr_t sc_intack; 65 }; 66 67 int melody_match __P((struct device *, struct cfdata *, void *)); 68 void melody_attach __P((struct device *, struct device *, void *)); 69 void melody_intack __P((struct tav_softc *)); 70 71 struct cfattach melody_ca = { 72 sizeof(struct melody_softc), melody_match, melody_attach 73 }; 74 75 int 76 melody_match(parent, cfp, aux) 77 struct device *parent; 78 struct cfdata *cfp; 79 void *aux; 80 { 81 struct zbus_args *zap; 82 83 zap = aux; 84 if (zap->manid != 2145) 85 return (0); 86 87 if (zap->prodid != 128) 88 return (0); 89 90 return (1); 91 } 92 93 void 94 melody_attach(parent, self, aux) 95 struct device *parent, *self; 96 void *aux; 97 { 98 struct melody_softc *sc; 99 struct zbus_args *zap; 100 bus_space_tag_t iot; 101 bus_space_handle_t ioh; 102 103 sc = (struct melody_softc *)self; 104 zap = aux; 105 106 sc->sc_bst_leftbyte.base = (u_long)zap->va + 0; 107 sc->sc_bst_leftbyte.absm = &amiga_bus_stride_2; 108 sc->sc_intack = (caddr_t)zap->va + 0xc000; 109 110 /* set up board specific part in sc_tav */ 111 112 iot = &sc->sc_bst_leftbyte; 113 114 if (bus_space_map(iot, 0, 128, 0, &ioh)) { 115 panic("melody: cant bus_space_map"); 116 /* NOTREACHED */ 117 } 118 sc->sc_tav.sc_iot = iot; 119 sc->sc_tav.sc_ioh = ioh; 120 sc->sc_tav.sc_pcm_ord = 0; 121 sc->sc_tav.sc_pcm_18 = 0; 122 sc->sc_tav.sc_dif = 0; 123 sc->sc_tav.sc_pcm_div = 12; 124 125 /* 126 * Attach option boards now. They might provide additional 127 * functionality to our audio part. 128 */ 129 130 /* attach our audio driver */ 131 132 printf(" #%d", zap->serno); 133 tms320av110_attach_mi(&sc->sc_tav); 134 sc->sc_isr.isr_ipl = 6; 135 sc->sc_isr.isr_arg = &sc->sc_tav; 136 sc->sc_isr.isr_intr = tms320av110_intr; 137 add_isr(&sc->sc_isr); 138 } 139 140 void 141 melody_intack(p) 142 struct tav_softc *p; 143 { 144 struct melody_softc *sc; 145 146 sc = (struct melody_softc *)p; 147 *sc->sc_intack = 0; 148 } 149