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/* $OpenBSD: sb_isa.c,v 1.8 2006/01/02 05:21:40 brad Exp $ */
/* $NetBSD: sb_isa.c,v 1.15 1997/11/30 15:32:25 drochner Exp $ */
/*
* Copyright (c) 1991-1993 Regents of the University of California.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <machine/bus.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/midi_if.h>
#include <dev/mulaw.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/isa/sbreg.h>
#include <dev/isa/sbvar.h>
#include <dev/isa/sbdspvar.h>
static int sbfind(struct device *, struct sbdsp_softc *, struct isa_attach_args *);
int sb_isa_match(struct device *, void *, void *);
void sb_isa_attach(struct device *, struct device *, void *);
struct cfattach sb_isa_ca = {
sizeof(struct sbdsp_softc), sb_isa_match, sb_isa_attach
};
/*
* Probe / attach routines.
*/
/*
* Probe for the soundblaster hardware.
*/
int
sb_isa_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct sbdsp_softc probesc, *sc = &probesc;
bzero(sc, sizeof *sc);
sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata;
strlcpy(sc->sc_dev.dv_xname, "sb", sizeof sc->sc_dev.dv_xname);
return sbfind(parent, sc, aux);
}
static int
sbfind(parent, sc, ia)
struct device *parent;
struct sbdsp_softc *sc;
struct isa_attach_args *ia;
{
int rc = 0;
if (!SB_BASE_VALID(ia->ia_iobase))
return 0;
sc->sc_iot = ia->ia_iot;
/* Map i/o space [we map 24 ports which is the max of the sb and pro] */
if (bus_space_map(sc->sc_iot, ia->ia_iobase, SBP_NPORT, 0,
&sc->sc_ioh))
return 0;
sc->sc_iobase = ia->ia_iobase;
sc->sc_irq = ia->ia_irq;
sc->sc_drq8 = ia->ia_drq;
sc->sc_drq16 = ia->ia_drq2;
sc->sc_ic = ia->ia_ic;
if (!sbmatch(sc))
goto bad;
if ((sc->sc_drq8 != -1 && !isa_drq_isfree(parent, sc->sc_drq8)) ||
(sc->sc_drq16 != -1 && !isa_drq_isfree(parent, sc->sc_drq16)))
goto bad;
if (ISSBPROCLASS(sc))
ia->ia_iosize = SBP_NPORT;
else
ia->ia_iosize = SB_NPORT;
if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ)
ia->ia_drq2 = -1;
ia->ia_irq = sc->sc_irq;
rc = 1;
bad:
bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT);
return rc;
}
/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver .
*/
void
sb_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sbdsp_softc *sc = (struct sbdsp_softc *)self;
struct isa_attach_args *ia = aux;
if (!sbfind(parent, sc, ia) ||
bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0,
&sc->sc_ioh)) {
printf("%s: sbfind failed\n", sc->sc_dev.dv_xname);
return;
}
sc->sc_ic = ia->ia_ic;
sc->sc_isa = parent;
sbattach(sc);
}
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