NetBSD/sys/arch/amiga/dev/melody.c

141 lines
3.7 KiB
C

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