NetBSD/sys/dev/sbus/cs4231_sbus.c

144 lines
4.3 KiB
C

/* $NetBSD: cs4231_sbus.c,v 1.13 2000/04/14 08:22:49 mrg Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include "audio.h"
#if NAUDIO > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/ic/ad1848reg.h>
#include <dev/ic/cs4231reg.h>
#include <dev/ic/ad1848var.h>
#include <dev/ic/cs4231var.h>
#define AUDIO_ROM_NAME "SUNW,CS4231"
#define CS4231_REG_SIZE 16
/* autoconfiguration driver */
void cs4231_attach_sbus __P((struct device *, struct device *, void *));
int cs4231_match_sbus __P((struct device *, struct cfdata *, void *));
struct cfattach audiocs_sbus_ca = {
sizeof(struct cs4231_softc), cs4231_match_sbus, cs4231_attach_sbus
};
/* autoconfig routines */
int
cs4231_match_sbus(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct sbus_attach_args *sa = aux;
return (strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0);
}
/*
* Audio chip found.
*/
void
cs4231_attach_sbus(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct cs4231_softc *sc = (struct cs4231_softc *)self;
struct sbus_attach_args *sa = aux;
bus_space_handle_t bh;
sc->sc_bustag = sa->sa_bustag;
sc->sc_dmatag = sa->sa_dmatag;
sc->sc_ad1848.parent = sc;
sc->sc_ad1848.sc_iot = sc->sc_bustag;
sc->sc_ad1848.sc_readreg = cs4231_read;
sc->sc_ad1848.sc_writereg = cs4231_write;
/*
* Map my registers in, if they aren't already in virtual
* address space.
*/
if (sa->sa_npromvaddrs) {
bh = (bus_space_handle_t)sa->sa_promvaddrs[0];
} else {
if (sbus_bus_map(sa->sa_bustag, sa->sa_slot,
sa->sa_offset,
sa->sa_size,
BUS_SPACE_MAP_LINEAR,
0, &bh) != 0) {
printf("%s @ sbus: cannot map registers\n",
self->dv_xname);
return;
}
}
sc->sc_ad1848.sc_ioh = bh;
sc->sc_dmareg = (struct apc_dma *)(u_long)(bh + CS4231_REG_SIZE);
cs4231_init(sc);
/* Put ad1848 driver in `MODE 2' mode */
sc->sc_ad1848.mode = 2;
ad1848_attach(&sc->sc_ad1848);
printf("\n");
sbus_establish(&sc->sc_sd, &sc->sc_ad1848.sc_dev);
/* Establish interrupt channel */
if (sa->sa_nintr)
bus_intr_establish(sa->sa_bustag,
sa->sa_pri, 0,
cs4231_intr, sc);
evcnt_attach(&sc->sc_ad1848.sc_dev, "intr", &sc->sc_intrcnt);
audio_attach_mi(&audiocs_hw_if, sc, &sc->sc_ad1848.sc_dev);
}
#endif