141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/* $NetBSD: melody.c,v 1.2 1998/01/12 10:39:58 thorpej Exp $ */
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/*-
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* Copyright (c) 1997 Ignatios Souvatzis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Melody audio driver.
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*
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* Currently, only minimum support for audio output. For audio/video
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* synchronization, more is needed.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <dev/ic/tms320av110reg.h>
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#include <dev/ic/tms320av110var.h>
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#include <machine/bus.h>
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#include <amiga/dev/zbusvar.h>
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#include <amiga/amiga/isr.h>
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struct melody_softc {
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struct tav_softc sc_tav;
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struct bus_space_tag sc_bst_leftbyte;
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struct isr sc_isr;
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caddr_t sc_intack;
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};
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int melody_match __P((struct device *, struct cfdata *, void *));
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void melody_attach __P((struct device *, struct device *, void *));
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void melody_intack __P((struct tav_softc *));
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struct cfattach melody_ca = {
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sizeof(struct melody_softc), melody_match, melody_attach
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};
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int
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melody_match(parent, cfp, aux)
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struct device *parent;
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struct cfdata *cfp;
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void *aux;
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{
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struct zbus_args *zap;
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zap = aux;
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if (zap->manid != 2145)
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return (0);
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if (zap->prodid != 128)
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return (0);
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return (1);
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}
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void
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melody_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct melody_softc *sc;
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struct zbus_args *zap;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = (struct melody_softc *)self;
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zap = aux;
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sc->sc_bst_leftbyte.base = (u_long)zap->va + 0;
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sc->sc_bst_leftbyte.stride = 1;
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sc->sc_intack = zap->va + 0xc000;
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/* set up board specific part in sc_tav */
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iot = &sc->sc_bst_leftbyte;
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if (bus_space_map(iot, 0, 128, 0, &ioh)) {
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panic("melody: cant bus_space_map");
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/* NOTREACHED */
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}
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sc->sc_tav.sc_iot = iot;
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sc->sc_tav.sc_ioh = ioh;
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sc->sc_tav.sc_pcm_ord = 0;
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sc->sc_tav.sc_pcm_18 = 0;
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sc->sc_tav.sc_dif = 0;
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sc->sc_tav.sc_pcm_div = 12;
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/*
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* Attach option boards now. They might provide additional
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* functionality to our audio part.
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*/
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/* attach our audio driver */
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printf(" #%d", zap->serno);
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tms320av110_attach_mi(&sc->sc_tav);
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sc->sc_isr.isr_ipl = 6;
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sc->sc_isr.isr_arg = &sc->sc_tav;
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sc->sc_isr.isr_intr = tms320av110_intr;
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add_isr(&sc->sc_isr);
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}
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void
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melody_intack(p)
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struct tav_softc *p;
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{
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struct melody_softc *sc;
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sc = (struct melody_softc *)p;
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*sc->sc_intack = 0;
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}
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