152 lines
4.5 KiB
C
152 lines
4.5 KiB
C
/* $NetBSD: cs4231_ebus.c,v 1.3 2000/04/15 03:08:13 mrg Exp $ */
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/*-
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* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "audio.h"
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#if NAUDIO > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/autoconf.h>
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#include <machine/cpu.h>
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#include <sparc64/dev/ebusreg.h>
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#include <sparc64/dev/ebusvar.h>
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#include <sys/audioio.h>
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#include <dev/audio_if.h>
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#include <dev/ic/ad1848reg.h>
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#include <dev/ic/cs4231reg.h>
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#include <dev/ic/ad1848var.h>
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#include <dev/ic/cs4231var.h>
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#define AUDIO_ROM_NAME "SUNW,CS4231"
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#define CS4231_REG_SIZE 16
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/* autoconfiguration driver */
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void cs4231_attach_ebus __P((struct device *, struct device *, void *));
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int cs4231_match_ebus __P((struct device *, struct cfdata *, void *));
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struct cfattach audiocs_ebus_ca = {
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sizeof(struct cs4231_softc), cs4231_match_ebus, cs4231_attach_ebus
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};
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/* autoconfig routines */
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int
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cs4231_match_ebus(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct ebus_attach_args *ea = aux;
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return (strcmp(AUDIO_ROM_NAME, ea->ea_name) == 0);
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}
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/*
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* Audio chip found.
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*/
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void
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cs4231_attach_ebus(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 cs4231_softc *sc = (struct cs4231_softc *)self;
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struct ebus_attach_args *ea = aux;
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bus_space_handle_t bh;
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int i;
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sc->sc_bustag = ea->ea_bustag;
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sc->sc_dmatag = ea->ea_dmatag;
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sc->sc_ad1848.parent = sc;
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sc->sc_ad1848.sc_iot = sc->sc_bustag;
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sc->sc_ad1848.sc_readreg = cs4231_read;
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sc->sc_ad1848.sc_writereg = cs4231_write;
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/*
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* These are the register we get from the prom:
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* - CS4231 registers
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* - DMA (play)
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* - DMA (write)
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* - AUXIO audio registers
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*
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* Map my registers in, if they aren't already in virtual
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* address space.
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*/
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if (ea->ea_nvaddrs) {
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bh = (bus_space_handle_t)ea->ea_vaddrs[0];
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} else {
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if (ebus_bus_map(ea->ea_bustag, 0,
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EBUS_PADDR_FROM_REG(&ea->ea_regs[0]),
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ea->ea_regs[0].size,
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BUS_SPACE_MAP_LINEAR,
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0, &bh) != 0) {
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printf("%s @ ebus: cannot map registers\n",
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self->dv_xname);
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return;
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}
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}
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/* XXX what to do with the DMA registers ? */
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sc->sc_ad1848.sc_ioh = bh;
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sc->sc_dmareg = (struct apc_dma *)(bh + CS4231_REG_SIZE);
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cs4231_init(sc);
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/* Put ad1848 driver in `MODE 2' mode */
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sc->sc_ad1848.mode = 2;
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ad1848_attach(&sc->sc_ad1848);
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printf("\n");
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/* Establish interrupt channels */
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for (i = 0; i < ea->ea_nintrs; i++)
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bus_intr_establish(ea->ea_bustag,
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ea->ea_intrs[i], 0,
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cs4231_intr, sc);
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evcnt_attach(&sc->sc_ad1848.sc_dev, "intr", &sc->sc_intrcnt);
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audio_attach_mi(&audiocs_hw_if, sc, &sc->sc_ad1848.sc_dev);
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}
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#endif
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