1 /* $NetBSD: melody.c,v 1.15 2008/04/28 20:23:12 martin 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 * 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: melody.c,v 1.15 2008/04/28 20:23:12 martin Exp $"); 34 35 /* 36 * Melody audio driver. 37 * 38 * Currently, only minimum support for audio output. For audio/video 39 * synchronization, more is needed. 40 */ 41 42 #include <sys/types.h> 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 48 #include <dev/ic/tms320av110reg.h> 49 #include <dev/ic/tms320av110var.h> 50 51 #include <machine/bus.h> 52 53 #include <amiga/dev/zbusvar.h> 54 #include <amiga/amiga/isr.h> 55 56 struct melody_softc { 57 struct tav_softc sc_tav; 58 struct bus_space_tag sc_bst_leftbyte; 59 struct isr sc_isr; 60 uint8_t * sc_intack; 61 }; 62 63 int melody_match(struct device *, struct cfdata *, void *); 64 void melody_attach(struct device *, struct device *, void *); 65 void melody_intack(struct tav_softc *); 66 67 CFATTACH_DECL(melody, sizeof(struct melody_softc), 68 melody_match, melody_attach, NULL, NULL); 69 70 int 71 melody_match(struct device *parent, struct cfdata *cfp, void *aux) 72 { 73 struct zbus_args *zap; 74 75 zap = aux; 76 if (zap->manid != 2145) 77 return (0); 78 79 if (zap->prodid != 128) 80 return (0); 81 82 return (1); 83 } 84 85 void 86 melody_attach(struct device *parent, struct device *self, void *aux) 87 { 88 struct melody_softc *sc; 89 struct zbus_args *zap; 90 bus_space_tag_t iot; 91 bus_space_handle_t ioh; 92 93 sc = (struct melody_softc *)self; 94 zap = aux; 95 96 sc->sc_bst_leftbyte.base = (u_long)zap->va + 0; 97 sc->sc_bst_leftbyte.absm = &amiga_bus_stride_2; 98 sc->sc_intack = (uint8_t *)zap->va + 0xc000; 99 100 /* set up board specific part in sc_tav */ 101 102 iot = &sc->sc_bst_leftbyte; 103 104 if (bus_space_map(iot, 0, 128, 0, &ioh)) { 105 panic("melody: cant bus_space_map"); 106 /* NOTREACHED */ 107 } 108 sc->sc_tav.sc_iot = iot; 109 sc->sc_tav.sc_ioh = ioh; 110 sc->sc_tav.sc_pcm_ord = 0; 111 sc->sc_tav.sc_pcm_18 = 0; 112 sc->sc_tav.sc_dif = 0; 113 sc->sc_tav.sc_pcm_div = 12; 114 115 /* 116 * Attach option boards now. They might provide additional 117 * functionality to our audio part. 118 */ 119 120 /* attach our audio driver */ 121 122 printf(" #%d", zap->serno); 123 tms320av110_attach_mi(&sc->sc_tav); 124 sc->sc_isr.isr_ipl = 6; 125 sc->sc_isr.isr_arg = &sc->sc_tav; 126 sc->sc_isr.isr_intr = tms320av110_intr; 127 add_isr(&sc->sc_isr); 128 } 129 130 void 131 melody_intack(struct tav_softc *p) 132 { 133 struct melody_softc *sc; 134 135 sc = (struct melody_softc *)p; 136 *sc->sc_intack = 0; 137 } 138