1 /* $NetBSD: melody.c,v 1.18 2012/10/27 17:17:30 chs 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 1.18 2012/10/27 17:17:30 chs 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 #include <sys/bus.h> 48 49 #include <dev/ic/tms320av110reg.h> 50 #include <dev/ic/tms320av110var.h> 51 52 #include <amiga/dev/zbusvar.h> 53 #include <amiga/amiga/isr.h> 54 55 struct melody_softc { 56 struct tav_softc sc_tav; 57 struct bus_space_tag sc_bst_leftbyte; 58 struct isr sc_isr; 59 uint8_t * sc_intack; 60 }; 61 62 int melody_match(device_t, cfdata_t, void *); 63 void melody_attach(device_t, device_t, void *); 64 void melody_intack(struct tav_softc *); 65 66 CFATTACH_DECL_NEW(melody, sizeof(struct melody_softc), 67 melody_match, melody_attach, NULL, NULL); 68 69 int 70 melody_match(device_t parent, cfdata_t cf, void *aux) 71 { 72 struct zbus_args *zap; 73 74 zap = aux; 75 if (zap->manid != 2145) 76 return (0); 77 78 if (zap->prodid != 128) 79 return (0); 80 81 return (1); 82 } 83 84 void 85 melody_attach(device_t parent, device_t self, void *aux) 86 { 87 struct melody_softc *sc; 88 struct zbus_args *zap; 89 bus_space_tag_t iot; 90 bus_space_handle_t ioh; 91 92 sc = device_private(self); 93 zap = aux; 94 95 sc->sc_bst_leftbyte.base = (u_long)zap->va + 0; 96 sc->sc_bst_leftbyte.absm = &amiga_bus_stride_2; 97 sc->sc_intack = (uint8_t *)zap->va + 0xc000; 98 99 /* set up board specific part in sc_tav */ 100 101 iot = &sc->sc_bst_leftbyte; 102 103 if (bus_space_map(iot, 0, 128, 0, &ioh)) { 104 panic("melody: cant bus_space_map"); 105 /* NOTREACHED */ 106 } 107 sc->sc_tav.sc_dev = self; 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 mutex_init(&sc->sc_tav.sc_lock, MUTEX_DEFAULT, IPL_NONE); 116 mutex_init(&sc->sc_tav.sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED); 117 cv_init(&sc->sc_tav.sc_cv, device_xname(self)); 118 119 /* 120 * Attach option boards now. They might provide additional 121 * functionality to our audio part. 122 */ 123 124 /* attach our audio driver */ 125 126 printf(" #%d", zap->serno); 127 tms320av110_attach_mi(&sc->sc_tav); 128 sc->sc_isr.isr_ipl = 6; 129 sc->sc_isr.isr_arg = &sc->sc_tav; 130 sc->sc_isr.isr_intr = tms320av110_intr; 131 add_isr(&sc->sc_isr); 132 } 133 134 void 135 melody_intack(struct tav_softc *p) 136 { 137 struct melody_softc *sc; 138 139 sc = (struct melody_softc *)p; 140 *sc->sc_intack = 0; 141 } 142